diff options
783 files changed, 27868 insertions, 13375 deletions
diff --git a/Documentation/ABI/stable/sysfs-bus-usb b/Documentation/ABI/stable/sysfs-bus-usb new file mode 100644 index 000000000000..2be603c52a24 --- /dev/null +++ b/Documentation/ABI/stable/sysfs-bus-usb @@ -0,0 +1,142 @@ +What: /sys/bus/usb/devices/.../power/persist +Date: May 2007 +KernelVersion: 2.6.23 +Contact: Alan Stern <stern@rowland.harvard.edu> +Description: + If CONFIG_USB_PERSIST is set, then each USB device directory + will contain a file named power/persist. The file holds a + boolean value (0 or 1) indicating whether or not the + "USB-Persist" facility is enabled for the device. Since the + facility is inherently dangerous, it is disabled by default + for all devices except hubs. For more information, see + Documentation/usb/persist.txt. + +What: /sys/bus/usb/devices/.../power/autosuspend +Date: March 2007 +KernelVersion: 2.6.21 +Contact: Alan Stern <stern@rowland.harvard.edu> +Description: + Each USB device directory will contain a file named + power/autosuspend. This file holds the time (in seconds) + the device must be idle before it will be autosuspended. + 0 means the device will be autosuspended as soon as + possible. Negative values will prevent the device from + being autosuspended at all, and writing a negative value + will resume the device if it is already suspended. + + The autosuspend delay for newly-created devices is set to + the value of the usbcore.autosuspend module parameter. + +What: /sys/bus/usb/device/.../power/connected_duration +Date: January 2008 +KernelVersion: 2.6.25 +Contact: Sarah Sharp <sarah.a.sharp@intel.com> +Description: + If CONFIG_PM_RUNTIME is enabled then this file + is present. When read, it returns the total time (in msec) + that the USB device has been connected to the machine. This + file is read-only. +Users: + PowerTOP <power@bughost.org> + http://www.lesswatts.org/projects/powertop/ + +What: /sys/bus/usb/device/.../power/active_duration +Date: January 2008 +KernelVersion: 2.6.25 +Contact: Sarah Sharp <sarah.a.sharp@intel.com> +Description: + If CONFIG_PM_RUNTIME is enabled then this file + is present. When read, it returns the total time (in msec) + that the USB device has been active, i.e. not in a suspended + state. This file is read-only. + + Tools can use this file and the connected_duration file to + compute the percentage of time that a device has been active. + For example, + echo $((100 * `cat active_duration` / `cat connected_duration`)) + will give an integer percentage. Note that this does not + account for counter wrap. +Users: + PowerTOP <power@bughost.org> + http://www.lesswatts.org/projects/powertop/ + +What: /sys/bus/usb/devices/<busnum>-<port[.port]>...:<config num>-<interface num>/supports_autosuspend +Date: January 2008 +KernelVersion: 2.6.27 +Contact: Sarah Sharp <sarah.a.sharp@intel.com> +Description: + When read, this file returns 1 if the interface driver + for this interface supports autosuspend. It also + returns 1 if no driver has claimed this interface, as an + unclaimed interface will not stop the device from being + autosuspended if all other interface drivers are idle. + The file returns 0 if autosuspend support has not been + added to the driver. +Users: + USB PM tool + git://git.moblin.org/users/sarah/usb-pm-tool/ + +What: /sys/bus/usb/device/.../avoid_reset_quirk +Date: December 2009 +Contact: Oliver Neukum <oliver@neukum.org> +Description: + Writing 1 to this file tells the kernel that this + device will morph into another mode when it is reset. + Drivers will not use reset for error handling for + such devices. +Users: + usb_modeswitch + +What: /sys/bus/usb/devices/.../devnum +KernelVersion: since at least 2.6.18 +Description: + Device address on the USB bus. +Users: + libusb + +What: /sys/bus/usb/devices/.../bConfigurationValue +KernelVersion: since at least 2.6.18 +Description: + bConfigurationValue of the *active* configuration for the + device. Writing 0 or -1 to bConfigurationValue will reset the + active configuration (unconfigure the device). Writing + another value will change the active configuration. + + Note that some devices, in violation of the USB spec, have a + configuration with a value equal to 0. Writing 0 to + bConfigurationValue for these devices will install that + configuration, rather then unconfigure the device. + + Writing -1 will always unconfigure the device. +Users: + libusb + +What: /sys/bus/usb/devices/.../busnum +KernelVersion: 2.6.22 +Description: + Bus-number of the USB-bus the device is connected to. +Users: + libusb + +What: /sys/bus/usb/devices/.../descriptors +KernelVersion: 2.6.26 +Description: + Binary file containing cached descriptors of the device. The + binary data consists of the device descriptor followed by the + descriptors for each configuration of the device. + Note that the wTotalLength of the config descriptors can not + be trusted, as the device may have a smaller config descriptor + than it advertises. The bLength field of each (sub) descriptor + can be trusted, and can be used to seek forward one (sub) + descriptor at a time until the next config descriptor is found. + All descriptors read from this file are in bus-endian format +Users: + libusb + +What: /sys/bus/usb/devices/.../speed +KernelVersion: since at least 2.6.18 +Description: + Speed the device is connected with to the usb-host in + Mbit / second. IE one of 1.5 / 12 / 480 / 5000. +Users: + libusb diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb index 9759b8c91332..1430f584b266 100644 --- a/Documentation/ABI/testing/sysfs-bus-usb +++ b/Documentation/ABI/testing/sysfs-bus-usb @@ -1,81 +1,3 @@ -What: /sys/bus/usb/devices/.../power/autosuspend -Date: March 2007 -KernelVersion: 2.6.21 -Contact: Alan Stern <stern@rowland.harvard.edu> -Description: - Each USB device directory will contain a file named - power/autosuspend. This file holds the time (in seconds) - the device must be idle before it will be autosuspended. - 0 means the device will be autosuspended as soon as - possible. Negative values will prevent the device from - being autosuspended at all, and writing a negative value - will resume the device if it is already suspended. - - The autosuspend delay for newly-created devices is set to - the value of the usbcore.autosuspend module parameter. - -What: /sys/bus/usb/devices/.../power/persist -Date: May 2007 -KernelVersion: 2.6.23 -Contact: Alan Stern <stern@rowland.harvard.edu> -Description: - If CONFIG_USB_PERSIST is set, then each USB device directory - will contain a file named power/persist. The file holds a - boolean value (0 or 1) indicating whether or not the - "USB-Persist" facility is enabled for the device. Since the - facility is inherently dangerous, it is disabled by default - for all devices except hubs. For more information, see - Documentation/usb/persist.txt. - -What: /sys/bus/usb/device/.../power/connected_duration -Date: January 2008 -KernelVersion: 2.6.25 -Contact: Sarah Sharp <sarah.a.sharp@intel.com> -Description: - If CONFIG_PM_RUNTIME is enabled then this file - is present. When read, it returns the total time (in msec) - that the USB device has been connected to the machine. This - file is read-only. -Users: - PowerTOP <power@bughost.org> - http://www.lesswatts.org/projects/powertop/ - -What: /sys/bus/usb/device/.../power/active_duration -Date: January 2008 -KernelVersion: 2.6.25 -Contact: Sarah Sharp <sarah.a.sharp@intel.com> -Description: - If CONFIG_PM_RUNTIME is enabled then this file - is present. When read, it returns the total time (in msec) - that the USB device has been active, i.e. not in a suspended - state. This file is read-only. - - Tools can use this file and the connected_duration file to - compute the percentage of time that a device has been active. - For example, - echo $((100 * `cat active_duration` / `cat connected_duration`)) - will give an integer percentage. Note that this does not - account for counter wrap. -Users: - PowerTOP <power@bughost.org> - http://www.lesswatts.org/projects/powertop/ - -What: /sys/bus/usb/device/<busnum>-<devnum>...:<config num>-<interface num>/supports_autosuspend -Date: January 2008 -KernelVersion: 2.6.27 -Contact: Sarah Sharp <sarah.a.sharp@intel.com> -Description: - When read, this file returns 1 if the interface driver - for this interface supports autosuspend. It also - returns 1 if no driver has claimed this interface, as an - unclaimed interface will not stop the device from being - autosuspended if all other interface drivers are idle. - The file returns 0 if autosuspend support has not been - added to the driver. -Users: - USB PM tool - git://git.moblin.org/users/sarah/usb-pm-tool/ - What: /sys/bus/usb/device/.../authorized Date: July 2008 KernelVersion: 2.6.26 @@ -172,17 +94,6 @@ Description: device IDs, exactly like reading from the entry "/sys/bus/usb/drivers/.../new_id" -What: /sys/bus/usb/device/.../avoid_reset_quirk -Date: December 2009 -Contact: Oliver Neukum <oliver@neukum.org> -Description: - Writing 1 to this file tells the kernel that this - device will morph into another mode when it is reset. - Drivers will not use reset for error handling for - such devices. -Users: - usb_modeswitch - What: /sys/bus/usb/devices/.../power/usb2_hardware_lpm Date: September 2011 Contact: Andiry Xu <andiry.xu@amd.com> diff --git a/Documentation/devicetree/bindings/regulator/88pm800.txt b/Documentation/devicetree/bindings/regulator/88pm800.txt new file mode 100644 index 000000000000..e8a54c2a5821 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/88pm800.txt @@ -0,0 +1,38 @@ +Marvell 88PM800 regulator + +Required properties: +- compatible: "marvell,88pm800" +- reg: I2C slave address +- regulators: A node that houses a sub-node for each regulator within the + device. Each sub-node is identified using the node's name (or the deprecated + regulator-compatible property if present), with valid values listed below. + The content of each sub-node is defined by the standard binding for + regulators; see regulator.txt. + +The valid names for regulators are: + + buck1, buck2, buck3, buck4, buck5, ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, + ldo8, ldo9, ldo10, ldo11, ldo12, ldo13, ldo14, ldo15, ldo16, ldo17, ldo18, ldo19 + +Example: + + pmic: 88pm800@31 { + compatible = "marvell,88pm800"; + reg = <0x31>; + + regulators { + buck1 { + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <3950000>; + regulator-boot-on; + regulator-always-on; + }; + ldo1 { + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <15000000>; + regulator-boot-on; + regulator-always-on; + }; +... + }; + }; diff --git a/Documentation/devicetree/bindings/regulator/max8660.txt b/Documentation/devicetree/bindings/regulator/max8660.txt new file mode 100644 index 000000000000..8ba994d8a142 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/max8660.txt @@ -0,0 +1,47 @@ +Maxim MAX8660 voltage regulator + +Required properties: +- compatible: must be one of "maxim,max8660", "maxim,max8661" +- reg: I2C slave address, usually 0x34 +- any required generic properties defined in regulator.txt + +Example: + + i2c_master { + max8660@34 { + compatible = "maxim,max8660"; + reg = <0x34>; + + regulators { + regulator@0 { + regulator-compatible= "V3(DCDC)"; + regulator-min-microvolt = <725000>; + regulator-max-microvolt = <1800000>; + }; + + regulator@1 { + regulator-compatible= "V4(DCDC)"; + regulator-min-microvolt = <725000>; + regulator-max-microvolt = <1800000>; + }; + + regulator@2 { + regulator-compatible= "V5(LDO)"; + regulator-min-microvolt = <1700000>; + regulator-max-microvolt = <2000000>; + }; + + regulator@3 { + regulator-compatible= "V6(LDO)"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + }; + + regulator@4 { + regulator-compatible= "V7(LDO)"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + }; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/regulator/palmas-pmic.txt b/Documentation/devicetree/bindings/regulator/palmas-pmic.txt index 30b0581bb1ce..a22e4c70db5c 100644 --- a/Documentation/devicetree/bindings/regulator/palmas-pmic.txt +++ b/Documentation/devicetree/bindings/regulator/palmas-pmic.txt @@ -25,8 +25,8 @@ Optional nodes: Additional custom properties are listed below. For ti,palmas-pmic - smps12, smps123, smps3 depending on OTP, - smps45, smps457, smps7 depending on variant, smps6, smps[8-10], - ldo[1-9], ldoln, ldousb. + smps45, smps457, smps7 depending on variant, smps6, smps[8-9], + smps10_out2, smps10_out1, do[1-9], ldoln, ldousb. Optional sub-node properties: ti,warm-reset - maintain voltage during warm reset(boolean) diff --git a/Documentation/devicetree/bindings/regulator/pfuze100.txt b/Documentation/devicetree/bindings/regulator/pfuze100.txt new file mode 100644 index 000000000000..fc989b2e8057 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/pfuze100.txt @@ -0,0 +1,115 @@ +PFUZE100 family of regulators + +Required properties: +- compatible: "fsl,pfuze100" +- reg: I2C slave address + +Required child node: +- regulators: This is the list of child nodes that specify the regulator + initialization data for defined regulators. Please refer to below doc + Documentation/devicetree/bindings/regulator/regulator.txt. + + The valid names for regulators are: + sw1ab,sw1c,sw2,sw3a,sw3b,sw4,swbst,vsnvs,vrefddr,vgen1~vgen6 + +Each regulator is defined using the standard binding for regulators. + +Example: + + pmic: pfuze100@08 { + compatible = "fsl,pfuze100"; + reg = <0x08>; + + regulators { + sw1a_reg: sw1ab { + regulator-min-microvolt = <300000>; + regulator-max-microvolt = <1875000>; + regulator-boot-on; + regulator-always-on; + regulator-ramp-delay = <6250>; + }; + + sw1c_reg: sw1c { + regulator-min-microvolt = <300000>; + regulator-max-microvolt = <1875000>; + regulator-boot-on; + regulator-always-on; + }; + + sw2_reg: sw2 { + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + sw3a_reg: sw3a { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <1975000>; + regulator-boot-on; + regulator-always-on; + }; + + sw3b_reg: sw3b { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <1975000>; + regulator-boot-on; + regulator-always-on; + }; + + sw4_reg: sw4 { + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + }; + + swbst_reg: swbst { + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5150000>; + }; + + snvs_reg: vsnvs { + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <3000000>; + regulator-boot-on; + regulator-always-on; + }; + + vref_reg: vrefddr { + regulator-boot-on; + regulator-always-on; + }; + + vgen1_reg: vgen1 { + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1550000>; + }; + + vgen2_reg: vgen2 { + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1550000>; + }; + + vgen3_reg: vgen3 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + }; + + vgen4_reg: vgen4 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + vgen5_reg: vgen5 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + vgen6_reg: vgen6 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 48a3b8e5d6bd..2bd8f0978765 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -12,6 +12,8 @@ Optional properties: - regulator-allow-bypass: allow the regulator to go into bypass mode - <name>-supply: phandle to the parent supply/regulator node - regulator-ramp-delay: ramp delay for regulator(in uV/uS) + For hardwares which support disabling ramp rate, it should be explicitly + intialised to zero (regulator-ramp-delay = <0>) for disabling ramp delay. Deprecated properties: - regulator-compatible: If a regulator chip contains multiple diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt new file mode 100644 index 000000000000..a590ca51be75 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt @@ -0,0 +1,34 @@ +* Energy Micro EFM32 SPI + +Required properties: +- #address-cells: see spi-bus.txt +- #size-cells: see spi-bus.txt +- compatible: should be "efm32,spi" +- reg: Offset and length of the register set for the controller +- interrupts: pair specifying rx and tx irq +- clocks: phandle to the spi clock +- cs-gpios: see spi-bus.txt +- location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values. + +Example: + +spi1: spi@0x4000c400 { /* USART1 */ + #address-cells = <1>; + #size-cells = <0>; + compatible = "efm32,spi"; + reg = <0x4000c400 0x400>; + interrupts = <15 16>; + clocks = <&cmu 20>; + cs-gpios = <&gpio 51 1>; // D3 + location = <1>; + status = "ok"; + + ks8851@0 { + compatible = "ks8851"; + spi-max-frequency = <6000000>; + reg = <0>; + interrupt-parent = <&boardfpga>; + interrupts = <4>; + status = "ok"; + }; +}; diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt index 296015e3c632..800dafe5b01b 100644 --- a/Documentation/devicetree/bindings/spi/spi-bus.txt +++ b/Documentation/devicetree/bindings/spi/spi-bus.txt @@ -55,6 +55,16 @@ contain the following properties. chip select active high - spi-3wire - (optional) Empty property indicating device requires 3-wire mode. +- spi-tx-bus-width - (optional) The bus width(number of data wires) that + used for MOSI. Defaults to 1 if not present. +- spi-rx-bus-width - (optional) The bus width(number of data wires) that + used for MISO. Defaults to 1 if not present. + +Some SPI controllers and devices support Dual and Quad SPI transfer mode. +It allows data in SPI system transfered in 2 wires(DUAL) or 4 wires(QUAD). +Now the value that spi-tx-bus-width and spi-rx-bus-width can receive is +only 1(SINGLE), 2(DUAL) and 4(QUAD). +Dual/Quad mode is not allowed when 3-wire mode is used. If a gpio chipselect is used for the SPI slave the gpio number will be passed via the cs_gpio diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt new file mode 100644 index 000000000000..a1fb3035a42b --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt @@ -0,0 +1,42 @@ +ARM Freescale DSPI controller + +Required properties: +- compatible : "fsl,vf610-dspi" +- reg : Offset and length of the register set for the device +- interrupts : Should contain SPI controller interrupt +- clocks: from common clock binding: handle to dspi clock. +- clock-names: from common clock binding: Shall be "dspi". +- pinctrl-0: pin control group to be used for this controller. +- pinctrl-names: must contain a "default" entry. +- spi-num-chipselects : the number of the chipselect signals. +- bus-num : the slave chip chipselect signal number. +Example: + +dspi0@4002c000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,vf610-dspi"; + reg = <0x4002c000 0x1000>; + interrupts = <0 67 0x04>; + clocks = <&clks VF610_CLK_DSPI0>; + clock-names = "dspi"; + spi-num-chipselects = <5>; + bus-num = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_dspi0_1>; + status = "okay"; + + sflash: at26df081a@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "atmel,at26df081a"; + spi-max-frequency = <16000000>; + spi-cpol; + spi-cpha; + reg = <0>; + linux,modalias = "m25p80"; + modal = "at26df081a"; + }; +}; + + diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt new file mode 100644 index 000000000000..1f9641ade0b5 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt @@ -0,0 +1,22 @@ +TI QSPI controller. + +Required properties: +- compatible : should be "ti,dra7xxx-qspi" or "ti,am4372-qspi". +- reg: Should contain QSPI registers location and length. +- #address-cells, #size-cells : Must be present if the device has sub-nodes +- ti,hwmods: Name of the hwmod associated to the QSPI + +Recommended properties: +- spi-max-frequency: Definition as per + Documentation/devicetree/bindings/spi/spi-bus.txt + +Example: + +qspi: qspi@4b300000 { + compatible = "ti,dra7xxx-qspi"; + reg = <0x4b300000 0x100>; + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <25000000>; + ti,hwmods = "qspi"; +}; diff --git a/Documentation/devicetree/bindings/usb/am33xx-usb.txt b/Documentation/devicetree/bindings/usb/am33xx-usb.txt index dc9dc8c87f15..20c2ff2ba07e 100644 --- a/Documentation/devicetree/bindings/usb/am33xx-usb.txt +++ b/Documentation/devicetree/bindings/usb/am33xx-usb.txt @@ -1,35 +1,197 @@ -AM33XX MUSB GLUE - - compatible : Should be "ti,musb-am33xx" - - reg : offset and length of register sets, first usbss, then for musb instances - - interrupts : usbss, musb instance interrupts in order - - ti,hwmods : must be "usb_otg_hs" - - multipoint : Should be "1" indicating the musb controller supports - multipoint. This is a MUSB configuration-specific setting. - - num-eps : Specifies the number of endpoints. This is also a - MUSB configuration-specific setting. Should be set to "16" - - ram-bits : Specifies the ram address size. Should be set to "12" - - port0-mode : Should be "3" to represent OTG. "1" signifies HOST and "2" - represents PERIPHERAL. - - port1-mode : Should be "1" to represent HOST. "3" signifies OTG and "2" - represents PERIPHERAL. - - power : Should be "250". This signifies the controller can supply up to - 500mA when operating in host mode. + AM33xx MUSB +~~~~~~~~~~~~~~~ +- compatible: ti,am33xx-usb +- reg: offset and length of the usbss register sets +- ti,hwmods : must be "usb_otg_hs" + +The glue layer contains multiple child nodes. It is required the have +at least a control module node, USB node and a PHY node. The second USB +node and its PHY node is optional. The DMA node is also optional. + +Reset module +~~~~~~~~~~~~ +- compatible: ti,am335x-usb-ctrl-module +- reg: offset and length of the "USB control registers" in the "Control + Module" block. A second offset and length for the USB wake up control + in the same memory block. +- reg-names: "phy_ctrl" for the "USB control registers" and "wakeup" for + the USB wake up control register. + +USB PHY +~~~~~~~ +compatible: ti,am335x-usb-phy +reg: offset and length of the "USB PHY" register space +ti,ctrl_mod: reference to the "reset module" node +reg-names: phy +The PHY should have a "phy" alias numbered properly in the alias +node. + +USB +~~~ +- compatible: ti,musb-am33xx +- reg: offset and length of "USB Controller Registers", and offset and + length of "USB Core" register space. +- reg-names: control for the ""USB Controller Registers" and "mc" for + "USB Core" register space +- interrupts: USB interrupt number +- interrupt-names: mc +- dr_mode: Should be one of "host", "peripheral" or "otg". +- mentor,multipoint: Should be "1" indicating the musb controller supports + multipoint. This is a MUSB configuration-specific setting. +- mentor,num-eps: Specifies the number of endpoints. This is also a + MUSB configuration-specific setting. Should be set to "16" +- mentor,ram-bits: Specifies the ram address size. Should be set to "12" +- mentor,power: Should be "500". This signifies the controller can supply up to + 500mA when operating in host mode. +- phys: reference to the USB phy +- dmas: specifies the dma channels +- dma-names: specifies the names of the channels. Use "rxN" for receive + and "txN" for transmit endpoints. N specifies the endpoint number. + +The controller should have an "usb" alias numbered properly in the alias +node. + +DMA +~~~ +- compatible: ti,am3359-cppi41 +- reg: offset and length of the following register spaces: USBSS, USB + CPPI DMA Controller, USB CPPI DMA Scheduler, USB Queue Manager +- reg-names: glue, controller, scheduler, queuemgr +- #dma-cells: should be set to 2. The first number represents the + endpoint number (0 … 14 for endpoints 1 … 15 on instance 0 and 15 … 29 + for endpoints 1 … 15 on instance 1). The second number is 0 for RX and + 1 for TX transfers. +- #dma-channels: should be set to 30 representing the 15 endpoints for + each USB instance. Example: +~~~~~~~~ +The following example contains all the nodes as used on am335x-evm: + +aliases { + usb0 = &usb0; + usb1 = &usb1; + phy0 = &usb0_phy; + phy1 = &usb1_phy; +}; -usb@47400000 { - compatible = "ti,musb-am33xx"; - reg = <0x47400000 0x1000 /* usbss */ - 0x47401000 0x800 /* musb instance 0 */ - 0x47401800 0x800>; /* musb instance 1 */ - interrupts = <17 /* usbss */ - 18 /* musb instance 0 */ - 19>; /* musb instance 1 */ - multipoint = <1>; - num-eps = <16>; - ram-bits = <12>; - port0-mode = <3>; - port1-mode = <3>; - power = <250>; +usb: usb@47400000 { + compatible = "ti,am33xx-usb"; + reg = <0x47400000 0x1000>; + ranges; + #address-cells = <1>; + #size-cells = <1>; ti,hwmods = "usb_otg_hs"; + + ctrl_mod: control@44e10000 { + compatible = "ti,am335x-usb-ctrl-module"; + reg = <0x44e10620 0x10 + 0x44e10648 0x4>; + reg-names = "phy_ctrl", "wakeup"; + }; + + usb0_phy: usb-phy@47401300 { + compatible = "ti,am335x-usb-phy"; + reg = <0x47401300 0x100>; + reg-names = "phy"; + ti,ctrl_mod = <&ctrl_mod>; + }; + + usb0: usb@47401000 { + compatible = "ti,musb-am33xx"; + reg = <0x47401400 0x400 + 0x47401000 0x200>; + reg-names = "mc", "control"; + + interrupts = <18>; + interrupt-names = "mc"; + dr_mode = "otg" + mentor,multipoint = <1>; + mentor,num-eps = <16>; + mentor,ram-bits = <12>; + mentor,power = <500>; + phys = <&usb0_phy>; + + dmas = <&cppi41dma 0 0 &cppi41dma 1 0 + &cppi41dma 2 0 &cppi41dma 3 0 + &cppi41dma 4 0 &cppi41dma 5 0 + &cppi41dma 6 0 &cppi41dma 7 0 + &cppi41dma 8 0 &cppi41dma 9 0 + &cppi41dma 10 0 &cppi41dma 11 0 + &cppi41dma 12 0 &cppi41dma 13 0 + &cppi41dma 14 0 &cppi41dma 0 1 + &cppi41dma 1 1 &cppi41dma 2 1 + &cppi41dma 3 1 &cppi41dma 4 1 + &cppi41dma 5 1 &cppi41dma 6 1 + &cppi41dma 7 1 &cppi41dma 8 1 + &cppi41dma 9 1 &cppi41dma 10 1 + &cppi41dma 11 1 &cppi41dma 12 1 + &cppi41dma 13 1 &cppi41dma 14 1>; + dma-names = + "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7", + "rx8", "rx9", "rx10", "rx11", "rx12", "rx13", + "rx14", "rx15", + "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7", + "tx8", "tx9", "tx10", "tx11", "tx12", "tx13", + "tx14", "tx15"; + }; + + usb1_phy: usb-phy@47401b00 { + compatible = "ti,am335x-usb-phy"; + reg = <0x47401b00 0x100>; + reg-names = "phy"; + ti,ctrl_mod = <&ctrl_mod>; + }; + + usb1: usb@47401800 { + compatible = "ti,musb-am33xx"; + reg = <0x47401c00 0x400 + 0x47401800 0x200>; + reg-names = "mc", "control"; + interrupts = <19>; + interrupt-names = "mc"; + dr_mode = "host" + mentor,multipoint = <1>; + mentor,num-eps = <16>; + mentor,ram-bits = <12>; + mentor,power = <500>; + phys = <&usb1_phy>; + + dmas = <&cppi41dma 15 0 &cppi41dma 16 0 + &cppi41dma 17 0 &cppi41dma 18 0 + &cppi41dma 19 0 &cppi41dma 20 0 + &cppi41dma 21 0 &cppi41dma 22 0 + &cppi41dma 23 0 &cppi41dma 24 0 + &cppi41dma 25 0 &cppi41dma 26 0 + &cppi41dma 27 0 &cppi41dma 28 0 + &cppi41dma 29 0 &cppi41dma 15 1 + &cppi41dma 16 1 &cppi41dma 17 1 + &cppi41dma 18 1 &cppi41dma 19 1 + &cppi41dma 20 1 &cppi41dma 21 1 + &cppi41dma 22 1 &cppi41dma 23 1 + &cppi41dma 24 1 &cppi41dma 25 1 + &cppi41dma 26 1 &cppi41dma 27 1 + &cppi41dma 28 1 &cppi41dma 29 1>; + dma-names = + "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7", + "rx8", "rx9", "rx10", "rx11", "rx12", "rx13", + "rx14", "rx15", + "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7", + "tx8", "tx9", "tx10", "tx11", "tx12", "tx13", + "tx14", "tx15"; + }; + + cppi41dma: dma-controller@07402000 { + compatible = "ti,am3359-cppi41"; + reg = <0x47400000 0x1000 + 0x47402000 0x1000 + 0x47403000 0x1000 + 0x47404000 0x4000>; + reg-names = "glue", "controller", "scheduler", "queuemgr"; + interrupts = <17>; + interrupt-names = "glue"; + #dma-cells = <2>; + #dma-channels = <30>; + #dma-requests = <256>; + }; }; diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index 7a95c651ceb3..e807635f9e1c 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -3,10 +3,12 @@ synopsys DWC3 CORE DWC3- USB3 CONTROLLER Required properties: - - compatible: must be "synopsys,dwc3" + - compatible: must be "snps,dwc3" - reg : Address and length of the register set for the device - interrupts: Interrupts used by the dwc3 controller. - - usb-phy : array of phandle for the PHY device + - usb-phy : array of phandle for the PHY device. The first element + in the array is expected to be a handle to the USB2/HS PHY and + the second element is expected to be a handle to the USB3/SS PHY Optional properties: - tx-fifo-resize: determines if the FIFO *has* to be reallocated. @@ -14,7 +16,7 @@ Optional properties: This is usually a subnode to DWC3 glue to which it is connected. dwc3@4a030000 { - compatible = "synopsys,dwc3"; + compatible = "snps,dwc3"; reg = <0x4a030000 0xcfff>; interrupts = <0 92 4> usb-phy = <&usb2_phy>, <&usb3,phy>; diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt new file mode 100644 index 000000000000..477d5bb5e51c --- /dev/null +++ b/Documentation/devicetree/bindings/usb/generic.txt @@ -0,0 +1,24 @@ +Generic USB Properties + +Optional properties: + - maximum-speed: tells USB controllers we want to work up to a certain + speed. Valid arguments are "super-speed", "high-speed", + "full-speed" and "low-speed". In case this isn't passed + via DT, USB controllers should default to their maximum + HW capability. + - dr_mode: tells Dual-Role USB controllers that we want to work on a + particular mode. Valid arguments are "host", + "peripheral" and "otg". In case this attribute isn't + passed via DT, USB DRD controllers should default to + OTG. + +This is an attribute to a USB controller such as: + +dwc3@4a030000 { + compatible = "synopsys,dwc3"; + reg = <0x4a030000 0xcfff>; + interrupts = <0 92 4> + usb-phy = <&usb2_phy>, <&usb3,phy>; + maximum-speed = "super-speed"; + dr_mode = "otg"; +}; diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt index c4c9e9e664aa..ba797d3e6326 100644 --- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt @@ -3,7 +3,7 @@ Tegra SOC USB PHY The device node for Tegra SOC USB PHY: Required properties : - - compatible : Should be "nvidia,tegra20-usb-phy". + - compatible : Should be "nvidia,tegra<chip>-usb-phy". - reg : Defines the following set of registers, in the order listed: - The PHY's own register set. Always present. @@ -24,17 +24,26 @@ Required properties : Required properties for phy_type == ulpi: - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. -Required PHY timing params for utmi phy: +Required PHY timing params for utmi phy, for all chips: - nvidia,hssync-start-delay : Number of 480 Mhz clock cycles to wait before start of sync launches RxActive - nvidia,elastic-limit : Variable FIFO Depth of elastic input store - nvidia,idle-wait-delay : Number of 480 Mhz clock cycles of idle to wait before declare IDLE. - nvidia,term-range-adj : Range adjusment on terminations - - nvidia,xcvr-setup : HS driver output control + - Either one of the following for HS driver output control: + - nvidia,xcvr-setup : integer, uses the provided value. + - nvidia,xcvr-setup-use-fuses : boolean, indicates that the value is read + from the on-chip fuses + If both are provided, nvidia,xcvr-setup-use-fuses takes precedence. - nvidia,xcvr-lsfslew : LS falling slew rate control. - nvidia,xcvr-lsrslew : LS rising slew rate control. +Required PHY timing params for utmi phy, only on Tegra30 and above: + - nvidia,xcvr-hsslew : HS slew rate control. + - nvidia,hssquelch-level : HS squelch detector level. + - nvidia,hsdiscon-level : HS disconnect detector level. + Optional properties: - nvidia,has-legacy-mode : boolean indicates whether this controller can operate in legacy mode (as APX 2500 / 2600). In legacy mode some @@ -48,5 +57,5 @@ Optional properties: peripheral means it is device controller otg means it can operate as either ("on the go") -Required properties for dr_mode == otg: +VBUS control (required for dr_mode == otg, optional for dr_mode == host): - vbus-supply: regulator for VBUS diff --git a/Documentation/devicetree/bindings/usb/samsung-hsotg.txt b/Documentation/devicetree/bindings/usb/samsung-hsotg.txt new file mode 100644 index 000000000000..b83d428a265e --- /dev/null +++ b/Documentation/devicetree/bindings/usb/samsung-hsotg.txt @@ -0,0 +1,40 @@ +Samsung High Speed USB OTG controller +----------------------------- + +The Samsung HSOTG IP can be found on Samsung SoCs, from S3C6400 onwards. +It gives functionality of OTG-compliant USB 2.0 host and device with +support for USB 2.0 high-speed (480Mbps) and full-speed (12 Mbps) +operation. + +Currently only device mode is supported. + +Binding details +----- + +Required properties: +- compatible: "samsung,s3c6400-hsotg" should be used for all currently + supported SoC, +- interrupt-parent: phandle for the interrupt controller to which the + interrupt signal of the HSOTG block is routed, +- interrupts: specifier of interrupt signal of interrupt controller, + according to bindings of interrupt controller, +- clocks: contains an array of clock specifiers: + - first entry: OTG clock +- clock-names: contains array of clock names: + - first entry: must be "otg" +- vusb_d-supply: phandle to voltage regulator of digital section, +- vusb_a-supply: phandle to voltage regulator of analog section. + +Example +----- + + hsotg@12480000 { + compatible = "samsung,s3c6400-hsotg"; + reg = <0x12480000 0x20000>; + interrupts = <0 71 0>; + clocks = <&clock 305>; + clock-names = "otg"; + vusb_d-supply = <&vusb_reg>; + vusb_a-supply = <&vusbdac_reg>; + }; + diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt new file mode 100644 index 000000000000..5752df0e17a2 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt @@ -0,0 +1,14 @@ +USB xHCI controllers + +Required properties: + - compatible: should be "xhci-platform". + - reg: should contain address and length of the standard XHCI + register set for the device. + - interrupts: one XHCI interrupt should be described here. + +Example: + usb@f0931000 { + compatible = "xhci-platform"; + reg = <0xf0931000 0x8c8>; + interrupts = <0x0 0x4e 0x0>; + }; diff --git a/Documentation/devicetree/bindings/usb/usb3503.txt b/Documentation/devicetree/bindings/usb/usb3503.txt index 8c5be48b43c8..a018da4a7ad7 100644 --- a/Documentation/devicetree/bindings/usb/usb3503.txt +++ b/Documentation/devicetree/bindings/usb/usb3503.txt @@ -1,8 +1,11 @@ SMSC USB3503 High-Speed Hub Controller Required properties: -- compatible: Should be "smsc,usb3503". -- reg: Specifies the i2c slave address, it should be 0x08. +- compatible: Should be "smsc,usb3503" or "smsc,usb3503a". + +Optional properties: +- reg: Specifies the i2c slave address, it is required and should be 0x08 + if I2C is used. - connect-gpios: Should specify GPIO for connect. - disabled-ports: Should specify the ports unused. '1' or '2' or '3' are availe for this property to describe the port diff --git a/Documentation/hwmon/ads1015 b/Documentation/hwmon/ads1015 index f6fe9c203733..063b80d857b1 100644 --- a/Documentation/hwmon/ads1015 +++ b/Documentation/hwmon/ads1015 @@ -6,6 +6,10 @@ Supported chips: Prefix: 'ads1015' Datasheet: Publicly available at the Texas Instruments website : http://focus.ti.com/lit/ds/symlink/ads1015.pdf + * Texas Instruments ADS1115 + Prefix: 'ads1115' + Datasheet: Publicly available at the Texas Instruments website : + http://focus.ti.com/lit/ds/symlink/ads1115.pdf Authors: Dirk Eibach, Guntermann & Drunck GmbH <eibach@gdsys.de> @@ -13,9 +17,9 @@ Authors: Description ----------- -This driver implements support for the Texas Instruments ADS1015. +This driver implements support for the Texas Instruments ADS1015/ADS1115. -This device is a 12-bit A-D converter with 4 inputs. +This device is a 12/16-bit A-D converter with 4 inputs. The inputs can be used single ended or in certain differential combinations. diff --git a/Documentation/hwmon/htu21 b/Documentation/hwmon/htu21 new file mode 100644 index 000000000000..f39a215fb6ae --- /dev/null +++ b/Documentation/hwmon/htu21 @@ -0,0 +1,46 @@ +Kernel driver htu21 +=================== + +Supported chips: + * Measurement Specialties HTU21D + Prefix: 'htu21' + Addresses scanned: none + Datasheet: Publicly available at the Measurement Specialties website + http://www.meas-spec.com/downloads/HTU21D.pdf + + +Author: + William Markezana <william.markezana@meas-spec.com> + +Description +----------- + +The HTU21D is a humidity and temperature sensor in a DFN package of +only 3 x 3 mm footprint and 0.9 mm height. + +The devices communicate with the I2C protocol. All sensors are set to the +same I2C address 0x40, so an entry with I2C_BOARD_INFO("htu21", 0x40) can +be used in the board setup code. + +This driver does not auto-detect devices. You will have to instantiate the +devices explicitly. Please see Documentation/i2c/instantiating-devices +for details. + +sysfs-Interface +--------------- + +temp1_input - temperature input +humidity1_input - humidity input + +Notes +----- + +The driver uses the default resolution settings of 12 bit for humidity and 14 +bit for temperature, which results in typical measurement times of 11 ms for +humidity and 44 ms for temperature. To keep self heating below 0.1 degree +Celsius, the device should not be active for more than 10% of the time. For +this reason, the driver performs no more than two measurements per second and +reports cached information if polled more frequently. + +Different resolutions, the on-chip heater, using the CRC checksum and reading +the serial number are not supported yet. diff --git a/Documentation/hwmon/k10temp b/Documentation/hwmon/k10temp index 90956b618025..4dfdc8f83633 100644 --- a/Documentation/hwmon/k10temp +++ b/Documentation/hwmon/k10temp @@ -12,6 +12,7 @@ Supported chips: * AMD Family 12h processors: "Llano" (E2/A4/A6/A8-Series) * AMD Family 14h processors: "Brazos" (C/E/G/Z-Series) * AMD Family 15h processors: "Bulldozer" (FX-Series), "Trinity" +* AMD Family 16h processors: "Kabini" Prefix: 'k10temp' Addresses scanned: PCI space diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 15356aca938c..7f9d4f53882c 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2953,7 +2953,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. improve throughput, but will also increase the amount of memory reserved for use by the client. - swapaccount[=0|1] + swapaccount=[0|1] [KNL] Enable accounting of swap in memory resource controller if no parameter or 1 is given or disable it if 0 is given (See Documentation/cgroups/memory.txt) diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary index 2331eb214146..f21edb983413 100644 --- a/Documentation/spi/spi-summary +++ b/Documentation/spi/spi-summary @@ -215,7 +215,7 @@ So for example arch/.../mach-*/board-*.c files might have code like: /* if your mach-* infrastructure doesn't support kernels that can * run on multiple boards, pdata wouldn't benefit from "__init". */ - static struct mysoc_spi_data __initdata pdata = { ... }; + static struct mysoc_spi_data pdata __initdata = { ... }; static __init board_init(void) { diff --git a/Documentation/usb/URB.txt b/Documentation/usb/URB.txt index 00d2c644068e..50da0d455444 100644 --- a/Documentation/usb/URB.txt +++ b/Documentation/usb/URB.txt @@ -195,13 +195,12 @@ by the completion handler. The handler is of the following type: - typedef void (*usb_complete_t)(struct urb *, struct pt_regs *) + typedef void (*usb_complete_t)(struct urb *) -I.e., it gets the URB that caused the completion call, plus the -register values at the time of the corresponding interrupt (if any). -In the completion handler, you should have a look at urb->status to -detect any USB errors. Since the context parameter is included in the URB, -you can pass information to the completion handler. +I.e., it gets the URB that caused the completion call. In the completion +handler, you should have a look at urb->status to detect any USB errors. +Since the context parameter is included in the URB, you can pass +information to the completion handler. Note that even when an error (or unlink) is reported, data may have been transferred. That's because USB transfers are packetized; it might take @@ -210,12 +209,12 @@ have transferred successfully before the completion was called. NOTE: ***** WARNING ***** -NEVER SLEEP IN A COMPLETION HANDLER. These are normally called -during hardware interrupt processing. If you can, defer substantial -work to a tasklet (bottom half) to keep system latencies low. You'll -probably need to use spinlocks to protect data structures you manipulate -in completion handlers. +NEVER SLEEP IN A COMPLETION HANDLER. These are often called in atomic +context. +In the current kernel, completion handlers run with local interrupts +disabled, but in the future this will be changed, so don't assume that +local IRQs are always disabled inside completion handlers. 1.8. How to do isochronous (ISO) transfers? diff --git a/Documentation/usb/proc_usb_info.txt b/Documentation/usb/proc_usb_info.txt index c9c3f0f5ad7b..98be91982677 100644 --- a/Documentation/usb/proc_usb_info.txt +++ b/Documentation/usb/proc_usb_info.txt @@ -54,9 +54,12 @@ it and 002/048 sometime later. These files can be read as binary data. The binary data consists of first the device descriptor, then the descriptors for each -configuration of the device. Multi-byte fields in the device and -configuration descriptors, but not other descriptors, are converted -to host endianness by the kernel. This information is also shown +configuration of the device. Multi-byte fields in the device descriptor +are converted to host endianness by the kernel. The configuration +descriptors are in bus endian format! The configuration descriptor +are wTotalLength bytes apart. If a device returns less configuration +descriptor data than indicated by wTotalLength there will be a hole in +the file for the missing bytes. This information is also shown in text form by the /proc/bus/usb/devices file, described later. These files may also be used to write user-level drivers for the USB diff --git a/MAINTAINERS b/MAINTAINERS index 229c66b12cc2..b87daf7ff42a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5884,7 +5884,7 @@ F: drivers/i2c/busses/i2c-omap.c F: include/linux/i2c-omap.h OMAP DEVICE TREE SUPPORT -M: Benoît Cousson <b-cousson@ti.com> +M: Benoît Cousson <bcousson@baylibre.com> M: Tony Lindgren <tony@atomide.com> L: linux-omap@vger.kernel.org L: devicetree@vger.kernel.org @@ -5964,14 +5964,14 @@ S: Maintained F: drivers/char/hw_random/omap-rng.c OMAP HWMOD SUPPORT -M: Benoît Cousson <b-cousson@ti.com> +M: Benoît Cousson <bcousson@baylibre.com> M: Paul Walmsley <paul@pwsan.com> L: linux-omap@vger.kernel.org S: Maintained F: arch/arm/mach-omap2/omap_hwmod.* OMAP HWMOD DATA FOR OMAP4-BASED DEVICES -M: Benoît Cousson <b-cousson@ti.com> +M: Benoît Cousson <bcousson@baylibre.com> L: linux-omap@vger.kernel.org S: Maintained F: arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -6066,7 +6066,7 @@ M: Rob Herring <rob.herring@calxeda.com> M: Pawel Moll <pawel.moll@arm.com> M: Mark Rutland <mark.rutland@arm.com> M: Stephen Warren <swarren@wwwdotorg.org> -M: Ian Campbell <ian.campbell@citrix.com> +M: Ian Campbell <ijc+devicetree@hellion.org.uk> L: devicetree@vger.kernel.org S: Maintained F: Documentation/devicetree/ @@ -8803,7 +8803,6 @@ W: http://www.linux-usb.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git S: Supported F: Documentation/usb/ -F: drivers/net/usb/ F: drivers/usb/ F: include/linux/usb.h F: include/linux/usb/ @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 11 SUBLEVEL = 0 -EXTRAVERSION = -rc6 +EXTRAVERSION = NAME = Linux for Workgroups # *DOCUMENTATION* diff --git a/arch/arc/lib/strchr-700.S b/arch/arc/lib/strchr-700.S index 99c10475d477..9c548c7cf001 100644 --- a/arch/arc/lib/strchr-700.S +++ b/arch/arc/lib/strchr-700.S @@ -39,9 +39,18 @@ ARC_ENTRY strchr ld.a r2,[r0,4] sub r12,r6,r7 bic r12,r12,r6 +#ifdef __LITTLE_ENDIAN__ and r7,r12,r4 breq r7,0,.Loop ; For speed, we want this branch to be unaligned. b .Lfound_char ; Likewise this one. +#else + and r12,r12,r4 + breq r12,0,.Loop ; For speed, we want this branch to be unaligned. + lsr_s r12,r12,7 + bic r2,r7,r6 + b.d .Lfound_char_b + and_s r2,r2,r12 +#endif ; /* We require this code address to be unaligned for speed... */ .Laligned: ld_s r2,[r0] @@ -95,6 +104,7 @@ ARC_ENTRY strchr lsr r7,r7,7 bic r2,r7,r6 +.Lfound_char_b: norm r2,r2 sub_s r0,r0,4 asr_s r2,r2,3 diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts index 444b4ede0d60..d318987d44a1 100644 --- a/arch/arm/boot/dts/am335x-bone.dts +++ b/arch/arm/boot/dts/am335x-bone.dts @@ -120,6 +120,35 @@ status = "okay"; }; + musb: usb@47400000 { + status = "okay"; + + control@44e10000 { + status = "okay"; + }; + + usb-phy@47401300 { + status = "okay"; + }; + + usb-phy@47401b00 { + status = "okay"; + }; + + usb@47401000 { + status = "okay"; + }; + + usb@47401800 { + status = "okay"; + dr_mode = "host"; + }; + + dma-controller@07402000 { + status = "okay"; + }; + }; + i2c0: i2c@44e0b000 { pinctrl-names = "default"; pinctrl-0 = <&i2c0_pins>; diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 3aee1a43782d..e8ec8756e498 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -171,6 +171,35 @@ }; }; + musb: usb@47400000 { + status = "okay"; + + control@44e10000 { + status = "okay"; + }; + + usb-phy@47401300 { + status = "okay"; + }; + + usb-phy@47401b00 { + status = "okay"; + }; + + usb@47401000 { + status = "okay"; + }; + + usb@47401800 { + status = "okay"; + dr_mode = "host"; + }; + + dma-controller@07402000 { + status = "okay"; + }; + }; + i2c1: i2c@4802a000 { pinctrl-names = "default"; pinctrl-0 = <&i2c1_pins>; diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts index 0c8ad173d2b0..a6c5033be442 100644 --- a/arch/arm/boot/dts/am335x-evmsk.dts +++ b/arch/arm/boot/dts/am335x-evmsk.dts @@ -207,6 +207,22 @@ }; }; + musb: usb@47400000 { + status = "okay"; + + control@44e10000 { + status = "okay"; + }; + + usb-phy@47401300 { + status = "okay"; + }; + + usb@47401000 { + status = "okay"; + }; + }; + epwmss2: epwmss@48304000 { status = "okay"; diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 38b446ba1ce1..f9c5da9c7fe1 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -26,6 +26,10 @@ serial5 = &uart5; d_can0 = &dcan0; d_can1 = &dcan1; + usb0 = &usb0; + usb1 = &usb1; + phy0 = &usb0_phy; + phy1 = &usb1_phy; }; cpus { @@ -333,21 +337,132 @@ status = "disabled"; }; - usb@47400000 { - compatible = "ti,musb-am33xx"; - reg = <0x47400000 0x1000 /* usbss */ - 0x47401000 0x800 /* musb instance 0 */ - 0x47401800 0x800>; /* musb instance 1 */ - interrupts = <17 /* usbss */ - 18 /* musb instance 0 */ - 19>; /* musb instance 1 */ - multipoint = <1>; - num-eps = <16>; - ram-bits = <12>; - port0-mode = <3>; - port1-mode = <3>; - power = <250>; + usb: usb@47400000 { + compatible = "ti,am33xx-usb"; + reg = <0x47400000 0x1000>; + ranges; + #address-cells = <1>; + #size-cells = <1>; ti,hwmods = "usb_otg_hs"; + status = "disabled"; + + ctrl_mod: control@44e10000 { + compatible = "ti,am335x-usb-ctrl-module"; + reg = <0x44e10620 0x10 + 0x44e10648 0x4>; + reg-names = "phy_ctrl", "wakeup"; + status = "disabled"; + }; + + usb0_phy: usb-phy@47401300 { + compatible = "ti,am335x-usb-phy"; + reg = <0x47401300 0x100>; + reg-names = "phy"; + status = "disabled"; + ti,ctrl_mod = <&ctrl_mod>; + }; + + usb0: usb@47401000 { + compatible = "ti,musb-am33xx"; + status = "disabled"; + reg = <0x47401400 0x400 + 0x47401000 0x200>; + reg-names = "mc", "control"; + + interrupts = <18>; + interrupt-names = "mc"; + dr_mode = "otg"; + mentor,multipoint = <1>; + mentor,num-eps = <16>; + mentor,ram-bits = <12>; + mentor,power = <500>; + phys = <&usb0_phy>; + + dmas = <&cppi41dma 0 0 &cppi41dma 1 0 + &cppi41dma 2 0 &cppi41dma 3 0 + &cppi41dma 4 0 &cppi41dma 5 0 + &cppi41dma 6 0 &cppi41dma 7 0 + &cppi41dma 8 0 &cppi41dma 9 0 + &cppi41dma 10 0 &cppi41dma 11 0 + &cppi41dma 12 0 &cppi41dma 13 0 + &cppi41dma 14 0 &cppi41dma 0 1 + &cppi41dma 1 1 &cppi41dma 2 1 + &cppi41dma 3 1 &cppi41dma 4 1 + &cppi41dma 5 1 &cppi41dma 6 1 + &cppi41dma 7 1 &cppi41dma 8 1 + &cppi41dma 9 1 &cppi41dma 10 1 + &cppi41dma 11 1 &cppi41dma 12 1 + &cppi41dma 13 1 &cppi41dma 14 1>; + dma-names = + "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7", + "rx8", "rx9", "rx10", "rx11", "rx12", "rx13", + "rx14", "rx15", + "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7", + "tx8", "tx9", "tx10", "tx11", "tx12", "tx13", + "tx14", "tx15"; + }; + + usb1_phy: usb-phy@47401b00 { + compatible = "ti,am335x-usb-phy"; + reg = <0x47401b00 0x100>; + reg-names = "phy"; + status = "disabled"; + ti,ctrl_mod = <&ctrl_mod>; + }; + + usb1: usb@47401800 { + compatible = "ti,musb-am33xx"; + status = "disabled"; + reg = <0x47401c00 0x400 + 0x47401800 0x200>; + reg-names = "mc", "control"; + interrupts = <19>; + interrupt-names = "mc"; + dr_mode = "otg"; + mentor,multipoint = <1>; + mentor,num-eps = <16>; + mentor,ram-bits = <12>; + mentor,power = <500>; + phys = <&usb1_phy>; + + dmas = <&cppi41dma 15 0 &cppi41dma 16 0 + &cppi41dma 17 0 &cppi41dma 18 0 + &cppi41dma 19 0 &cppi41dma 20 0 + &cppi41dma 21 0 &cppi41dma 22 0 + &cppi41dma 23 0 &cppi41dma 24 0 + &cppi41dma 25 0 &cppi41dma 26 0 + &cppi41dma 27 0 &cppi41dma 28 0 + &cppi41dma 29 0 &cppi41dma 15 1 + &cppi41dma 16 1 &cppi41dma 17 1 + &cppi41dma 18 1 &cppi41dma 19 1 + &cppi41dma 20 1 &cppi41dma 21 1 + &cppi41dma 22 1 &cppi41dma 23 1 + &cppi41dma 24 1 &cppi41dma 25 1 + &cppi41dma 26 1 &cppi41dma 27 1 + &cppi41dma 28 1 &cppi41dma 29 1>; + dma-names = + "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7", + "rx8", "rx9", "rx10", "rx11", "rx12", "rx13", + "rx14", "rx15", + "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7", + "tx8", "tx9", "tx10", "tx11", "tx12", "tx13", + "tx14", "tx15"; + }; + + cppi41dma: dma-controller@07402000 { + compatible = "ti,am3359-cppi41"; + reg = <0x47400000 0x1000 + 0x47402000 0x1000 + 0x47403000 0x1000 + 0x47404000 0x4000>; + reg-names = "glue", "controller", "scheduler", "queuemgr"; + interrupts = <17>; + interrupt-names = "glue"; + #dma-cells = <2>; + #dma-channels = <30>; + #dma-requests = <256>; + status = "disabled"; + }; }; epwmss0: epwmss@48300000 { diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts index d59b70c6a6a0..3d77dbe406f4 100644 --- a/arch/arm/boot/dts/at91sam9n12ek.dts +++ b/arch/arm/boot/dts/at91sam9n12ek.dts @@ -14,11 +14,11 @@ compatible = "atmel,at91sam9n12ek", "atmel,at91sam9n12", "atmel,at91sam9"; chosen { - bootargs = "mem=128M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2"; + bootargs = "console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2"; }; memory { - reg = <0x20000000 0x10000000>; + reg = <0x20000000 0x8000000>; }; clocks { diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi index b753855b2058..49e3c45818c2 100644 --- a/arch/arm/boot/dts/at91sam9x5ek.dtsi +++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi @@ -94,8 +94,9 @@ usb0: ohci@00600000 { status = "okay"; - num-ports = <2>; - atmel,vbus-gpio = <&pioD 19 GPIO_ACTIVE_LOW + num-ports = <3>; + atmel,vbus-gpio = <0 /* &pioD 18 GPIO_ACTIVE_LOW *//* Activate to have access to port A */ + &pioD 19 GPIO_ACTIVE_LOW &pioD 20 GPIO_ACTIVE_LOW >; }; diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi index e643620417a9..07be2cd7b318 100644 --- a/arch/arm/boot/dts/omap5.dtsi +++ b/arch/arm/boot/dts/omap5.dtsi @@ -644,7 +644,7 @@ utmi-mode = <2>; ranges; dwc3@4a030000 { - compatible = "synopsys,dwc3"; + compatible = "snps,dwc3"; reg = <0x4a030000 0x1000>; interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>; usb-phy = <&usb2_phy>, <&usb3_phy>; diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts b/arch/arm/boot/dts/tegra20-seaboard.dts index 365760b33a26..c8242533268f 100644 --- a/arch/arm/boot/dts/tegra20-seaboard.dts +++ b/arch/arm/boot/dts/tegra20-seaboard.dts @@ -566,7 +566,6 @@ usb@c5000000 { status = "okay"; - nvidia,vbus-gpio = <&gpio TEGRA_GPIO(D, 0) GPIO_ACTIVE_HIGH>; dr_mode = "otg"; }; @@ -830,6 +829,8 @@ regulator-max-microvolt = <5000000>; enable-active-high; gpio = <&gpio 24 0>; /* PD0 */ + regulator-always-on; + regulator-boot-on; }; }; diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts index ed4b901b0227..1e9d33adb925 100644 --- a/arch/arm/boot/dts/tegra20-trimslice.dts +++ b/arch/arm/boot/dts/tegra20-trimslice.dts @@ -312,7 +312,6 @@ usb@c5000000 { status = "okay"; - nvidia,vbus-gpio = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>; }; usb-phy@c5000000 { @@ -412,6 +411,8 @@ regulator-max-microvolt = <5000000>; enable-active-high; gpio = <&gpio 170 0>; /* PV2 */ + regulator-always-on; + regulator-boot-on; }; }; diff --git a/arch/arm/boot/dts/tegra20-whistler.dts b/arch/arm/boot/dts/tegra20-whistler.dts index ab67c94db280..c703197dca6e 100644 --- a/arch/arm/boot/dts/tegra20-whistler.dts +++ b/arch/arm/boot/dts/tegra20-whistler.dts @@ -509,7 +509,6 @@ usb@c5000000 { status = "okay"; - nvidia,vbus-gpio = <&tca6416 0 GPIO_ACTIVE_HIGH>; }; usb-phy@c5000000 { @@ -519,7 +518,6 @@ usb@c5008000 { status = "okay"; - nvidia,vbus-gpio = <&tca6416 1 GPIO_ACTIVE_HIGH>; }; usb-phy@c5008000 { @@ -588,6 +586,8 @@ regulator-max-microvolt = <5000000>; enable-active-high; gpio = <&tca6416 0 0>; /* GPIO_PMU0 */ + regulator-always-on; + regulator-boot-on; }; vbus3_reg: regulator@3 { @@ -598,6 +598,8 @@ regulator-max-microvolt = <5000000>; enable-active-high; gpio = <&tca6416 1 0>; /* GPIO_PMU1 */ + regulator-always-on; + regulator-boot-on; }; }; diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 9653fd8288d2..e4570834512e 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -477,13 +477,13 @@ <&tegra_car TEGRA20_CLK_USBD>; clock-names = "reg", "pll_u", "timer", "utmi-pads"; nvidia,has-legacy-mode; - hssync_start_delay = <9>; - idle_wait_delay = <17>; - elastic_limit = <16>; - term_range_adj = <6>; - xcvr_setup = <9>; - xcvr_lsfslew = <1>; - xcvr_lsrslew = <1>; + nvidia,hssync-start-delay = <9>; + nvidia,idle-wait-delay = <17>; + nvidia,elastic-limit = <16>; + nvidia,term-range-adj = <6>; + nvidia,xcvr-setup = <9>; + nvidia,xcvr-lsfslew = <1>; + nvidia,xcvr-lsrslew = <1>; status = "disabled"; }; @@ -527,13 +527,13 @@ <&tegra_car TEGRA20_CLK_CLK_M>, <&tegra_car TEGRA20_CLK_USBD>; clock-names = "reg", "pll_u", "timer", "utmi-pads"; - hssync_start_delay = <9>; - idle_wait_delay = <17>; - elastic_limit = <16>; - term_range_adj = <6>; - xcvr_setup = <9>; - xcvr_lsfslew = <2>; - xcvr_lsrslew = <2>; + nvidia,hssync-start-delay = <9>; + nvidia,idle-wait-delay = <17>; + nvidia,elastic-limit = <16>; + nvidia,term-range-adj = <6>; + nvidia,xcvr-setup = <9>; + nvidia,xcvr-lsfslew = <2>; + nvidia,xcvr-lsrslew = <2>; status = "disabled"; }; diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c index fc7920288a3d..918875d96d5d 100644 --- a/arch/arm/kernel/fiq.c +++ b/arch/arm/kernel/fiq.c @@ -89,7 +89,8 @@ void set_fiq_handler(void *start, unsigned int length) memcpy(base + offset, start, length); if (!cache_is_vipt_nonaliasing()) - flush_icache_range(base + offset, offset + length); + flush_icache_range((unsigned long)base + offset, offset + + length); flush_icache_range(0xffff0000 + offset, 0xffff0000 + offset + length); } diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index d7c82df69243..57221e349a7c 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -82,6 +82,7 @@ void machine_crash_nonpanic_core(void *unused) crash_save_cpu(®s, smp_processor_id()); flush_cache_all(); + set_cpu_online(smp_processor_id(), false); atomic_dec(&waiting_for_crash_ipi); while (1) cpu_relax(); diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c index 4a5199070430..db9cf692d4dd 100644 --- a/arch/arm/kvm/coproc.c +++ b/arch/arm/kvm/coproc.c @@ -146,7 +146,11 @@ static bool pm_fake(struct kvm_vcpu *vcpu, #define access_pmintenclr pm_fake /* Architected CP15 registers. - * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 + * CRn denotes the primary register number, but is copied to the CRm in the + * user space API for 64-bit register access in line with the terminology used + * in the ARM ARM. + * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 and with 64-bit + * registers preceding 32-bit ones. */ static const struct coproc_reg cp15_regs[] = { /* CSSELR: swapped by interrupt.S. */ @@ -154,8 +158,8 @@ static const struct coproc_reg cp15_regs[] = { NULL, reset_unknown, c0_CSSELR }, /* TTBR0/TTBR1: swapped by interrupt.S. */ - { CRm( 2), Op1( 0), is64, NULL, reset_unknown64, c2_TTBR0 }, - { CRm( 2), Op1( 1), is64, NULL, reset_unknown64, c2_TTBR1 }, + { CRm64( 2), Op1( 0), is64, NULL, reset_unknown64, c2_TTBR0 }, + { CRm64( 2), Op1( 1), is64, NULL, reset_unknown64, c2_TTBR1 }, /* TTBCR: swapped by interrupt.S. */ { CRn( 2), CRm( 0), Op1( 0), Op2( 2), is32, @@ -182,7 +186,7 @@ static const struct coproc_reg cp15_regs[] = { NULL, reset_unknown, c6_IFAR }, /* PAR swapped by interrupt.S */ - { CRn( 7), Op1( 0), is64, NULL, reset_unknown64, c7_PAR }, + { CRm64( 7), Op1( 0), is64, NULL, reset_unknown64, c7_PAR }, /* * DC{C,I,CI}SW operations: @@ -399,12 +403,13 @@ static bool index_to_params(u64 id, struct coproc_params *params) | KVM_REG_ARM_OPC1_MASK)) return false; params->is_64bit = true; - params->CRm = ((id & KVM_REG_ARM_CRM_MASK) + /* CRm to CRn: see cp15_to_index for details */ + params->CRn = ((id & KVM_REG_ARM_CRM_MASK) >> KVM_REG_ARM_CRM_SHIFT); params->Op1 = ((id & KVM_REG_ARM_OPC1_MASK) >> KVM_REG_ARM_OPC1_SHIFT); params->Op2 = 0; - params->CRn = 0; + params->CRm = 0; return true; default: return false; @@ -898,7 +903,14 @@ static u64 cp15_to_index(const struct coproc_reg *reg) if (reg->is_64) { val |= KVM_REG_SIZE_U64; val |= (reg->Op1 << KVM_REG_ARM_OPC1_SHIFT); - val |= (reg->CRm << KVM_REG_ARM_CRM_SHIFT); + /* + * CRn always denotes the primary coproc. reg. nr. for the + * in-kernel representation, but the user space API uses the + * CRm for the encoding, because it is modelled after the + * MRRC/MCRR instructions: see the ARM ARM rev. c page + * B3-1445 + */ + val |= (reg->CRn << KVM_REG_ARM_CRM_SHIFT); } else { val |= KVM_REG_SIZE_U32; val |= (reg->Op1 << KVM_REG_ARM_OPC1_SHIFT); diff --git a/arch/arm/kvm/coproc.h b/arch/arm/kvm/coproc.h index b7301d3e4799..0461d5c8d3de 100644 --- a/arch/arm/kvm/coproc.h +++ b/arch/arm/kvm/coproc.h @@ -135,6 +135,8 @@ static inline int cmp_reg(const struct coproc_reg *i1, return -1; if (i1->CRn != i2->CRn) return i1->CRn - i2->CRn; + if (i1->is_64 != i2->is_64) + return i2->is_64 - i1->is_64; if (i1->CRm != i2->CRm) return i1->CRm - i2->CRm; if (i1->Op1 != i2->Op1) @@ -145,6 +147,7 @@ static inline int cmp_reg(const struct coproc_reg *i1, #define CRn(_x) .CRn = _x #define CRm(_x) .CRm = _x +#define CRm64(_x) .CRn = _x, .CRm = 0 #define Op1(_x) .Op1 = _x #define Op2(_x) .Op2 = _x #define is64 .is_64 = true diff --git a/arch/arm/kvm/coproc_a15.c b/arch/arm/kvm/coproc_a15.c index 685063a6d0cf..cf93472b9dd6 100644 --- a/arch/arm/kvm/coproc_a15.c +++ b/arch/arm/kvm/coproc_a15.c @@ -114,7 +114,11 @@ static bool access_l2ectlr(struct kvm_vcpu *vcpu, /* * A15-specific CP15 registers. - * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 + * CRn denotes the primary register number, but is copied to the CRm in the + * user space API for 64-bit register access in line with the terminology used + * in the ARM ARM. + * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 and with 64-bit + * registers preceding 32-bit ones. */ static const struct coproc_reg a15_regs[] = { /* MPIDR: we use VMPIDR for guest access. */ diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c index b8e06b7a2833..0c25d9487d53 100644 --- a/arch/arm/kvm/mmio.c +++ b/arch/arm/kvm/mmio.c @@ -63,7 +63,8 @@ int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run) static int decode_hsr(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa, struct kvm_exit_mmio *mmio) { - unsigned long rt, len; + unsigned long rt; + int len; bool is_write, sign_extend; if (kvm_vcpu_dabt_isextabt(vcpu)) { diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c index ca6bea4859b4..0988d9e04dd4 100644 --- a/arch/arm/kvm/mmu.c +++ b/arch/arm/kvm/mmu.c @@ -85,6 +85,12 @@ static void *mmu_memory_cache_alloc(struct kvm_mmu_memory_cache *mc) return p; } +static bool page_empty(void *ptr) +{ + struct page *ptr_page = virt_to_page(ptr); + return page_count(ptr_page) == 1; +} + static void clear_pud_entry(struct kvm *kvm, pud_t *pud, phys_addr_t addr) { pmd_t *pmd_table = pmd_offset(pud, 0); @@ -103,12 +109,6 @@ static void clear_pmd_entry(struct kvm *kvm, pmd_t *pmd, phys_addr_t addr) put_page(virt_to_page(pmd)); } -static bool pmd_empty(pmd_t *pmd) -{ - struct page *pmd_page = virt_to_page(pmd); - return page_count(pmd_page) == 1; -} - static void clear_pte_entry(struct kvm *kvm, pte_t *pte, phys_addr_t addr) { if (pte_present(*pte)) { @@ -118,12 +118,6 @@ static void clear_pte_entry(struct kvm *kvm, pte_t *pte, phys_addr_t addr) } } -static bool pte_empty(pte_t *pte) -{ - struct page *pte_page = virt_to_page(pte); - return page_count(pte_page) == 1; -} - static void unmap_range(struct kvm *kvm, pgd_t *pgdp, unsigned long long start, u64 size) { @@ -132,37 +126,37 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp, pmd_t *pmd; pte_t *pte; unsigned long long addr = start, end = start + size; - u64 range; + u64 next; while (addr < end) { pgd = pgdp + pgd_index(addr); pud = pud_offset(pgd, addr); if (pud_none(*pud)) { - addr += PUD_SIZE; + addr = pud_addr_end(addr, end); continue; } pmd = pmd_offset(pud, addr); if (pmd_none(*pmd)) { - addr += PMD_SIZE; + addr = pmd_addr_end(addr, end); continue; } pte = pte_offset_kernel(pmd, addr); clear_pte_entry(kvm, pte, addr); - range = PAGE_SIZE; + next = addr + PAGE_SIZE; /* If we emptied the pte, walk back up the ladder */ - if (pte_empty(pte)) { + if (page_empty(pte)) { clear_pmd_entry(kvm, pmd, addr); - range = PMD_SIZE; - if (pmd_empty(pmd)) { + next = pmd_addr_end(addr, end); + if (page_empty(pmd) && !page_empty(pud)) { clear_pud_entry(kvm, pud, addr); - range = PUD_SIZE; + next = pud_addr_end(addr, end); } } - addr += range; + addr = next; } } diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c index 2abee6626aac..916e5a142917 100644 --- a/arch/arm/mach-at91/at91sam9x5.c +++ b/arch/arm/mach-at91/at91sam9x5.c @@ -227,6 +227,8 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("usart", "f8020000.serial", &usart1_clk), CLKDEV_CON_DEV_ID("usart", "f8024000.serial", &usart2_clk), CLKDEV_CON_DEV_ID("usart", "f8028000.serial", &usart3_clk), + CLKDEV_CON_DEV_ID("usart", "f8040000.serial", &uart0_clk), + CLKDEV_CON_DEV_ID("usart", "f8044000.serial", &uart1_clk), CLKDEV_CON_DEV_ID("t0_clk", "f8008000.timer", &tcb0_clk), CLKDEV_CON_DEV_ID("t0_clk", "f800c000.timer", &tcb0_clk), CLKDEV_CON_DEV_ID("mci_clk", "f0008000.mmc", &mmc0_clk), diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c index dff4ddc5ef81..139e42da25f0 100644 --- a/arch/arm/mach-davinci/board-dm355-leopard.c +++ b/arch/arm/mach-davinci/board-dm355-leopard.c @@ -75,6 +75,7 @@ static struct davinci_nand_pdata davinci_nand_data = { .parts = davinci_nand_partitions, .nr_parts = ARRAY_SIZE(davinci_nand_partitions), .ecc_mode = NAND_ECC_HW_SYNDROME, + .ecc_bits = 4, .bbt_options = NAND_BBT_USE_FLASH, }; diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c index a33686a6fbb2..fa4bfaf952d8 100644 --- a/arch/arm/mach-davinci/board-dm644x-evm.c +++ b/arch/arm/mach-davinci/board-dm644x-evm.c @@ -153,6 +153,7 @@ static struct davinci_nand_pdata davinci_evm_nandflash_data = { .parts = davinci_evm_nandflash_partition, .nr_parts = ARRAY_SIZE(davinci_evm_nandflash_partition), .ecc_mode = NAND_ECC_HW, + .ecc_bits = 1, .bbt_options = NAND_BBT_USE_FLASH, .timing = &davinci_evm_nandflash_timing, }; diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c index fbb8e5ab1dc1..0c005e876cac 100644 --- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -90,6 +90,7 @@ static struct davinci_nand_pdata davinci_nand_data = { .parts = davinci_nand_partitions, .nr_parts = ARRAY_SIZE(davinci_nand_partitions), .ecc_mode = NAND_ECC_HW, + .ecc_bits = 1, .options = 0, }; diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c index 2bc112adf565..808233b60e3d 100644 --- a/arch/arm/mach-davinci/board-neuros-osd2.c +++ b/arch/arm/mach-davinci/board-neuros-osd2.c @@ -88,6 +88,7 @@ static struct davinci_nand_pdata davinci_ntosd2_nandflash_data = { .parts = davinci_ntosd2_nandflash_partition, .nr_parts = ARRAY_SIZE(davinci_ntosd2_nandflash_partition), .ecc_mode = NAND_ECC_HW, + .ecc_bits = 1, .bbt_options = NAND_BBT_USE_FLASH, }; diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c index f6eeb87e4e95..827d15009a86 100644 --- a/arch/arm/mach-omap2/board-n8x0.c +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -122,11 +122,7 @@ static struct musb_hdrc_config musb_config = { }; static struct musb_hdrc_platform_data tusb_data = { -#ifdef CONFIG_USB_GADGET_MUSB_HDRC .mode = MUSB_OTG, -#else - .mode = MUSB_HOST, -#endif .set_power = tusb_set_power, .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */ .power = 100, /* Max 100 mA VBUS for host mode */ diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 04c116555412..1c6ae5f5bae7 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -33,7 +33,7 @@ #include <linux/mtd/nand.h> #include <linux/mmc/host.h> #include <linux/usb/phy.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <linux/regulator/machine.h> #include <linux/i2c/twl.h> @@ -279,7 +279,7 @@ static struct regulator_consumer_supply beagle_vsim_supply[] = { static struct gpio_led gpio_leds[]; /* PHY's VCC regulator might be added later, so flag that we need it */ -static struct nop_usb_xceiv_platform_data hsusb2_phy_data = { +static struct usb_phy_gen_xceiv_platform_data hsusb2_phy_data = { .needs_vcc = true, }; diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index 8c026269baca..52bdddd41e0e 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -33,7 +33,7 @@ #include <linux/i2c/twl.h> #include <linux/usb/otg.h> #include <linux/usb/musb.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <linux/smsc911x.h> #include <linux/wl12xx.h> @@ -468,7 +468,7 @@ struct wl12xx_platform_data omap3evm_wlan_data __initdata = { static struct regulator_consumer_supply omap3evm_vaux2_supplies[] = { REGULATOR_SUPPLY("VDD_CSIPHY1", "omap3isp"), /* OMAP ISP */ REGULATOR_SUPPLY("VDD_CSIPHY2", "omap3isp"), /* OMAP ISP */ - REGULATOR_SUPPLY("vcc", "nop_usb_xceiv.2"), /* hsusb port 2 */ + REGULATOR_SUPPLY("vcc", "usb_phy_gen_xceiv.2"), /* hsusb port 2 */ REGULATOR_SUPPLY("vaux2", NULL), }; diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index b1547a0edfcd..d2b455e70486 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -352,7 +352,7 @@ static struct regulator_consumer_supply pandora_vcc_lcd_supply[] = { }; static struct regulator_consumer_supply pandora_usb_phy_supply[] = { - REGULATOR_SUPPLY("vcc", "nop_usb_xceiv.2"), /* hsusb port 2 */ + REGULATOR_SUPPLY("vcc", "usb_phy_gen_xceiv.2"), /* hsusb port 2 */ }; /* ads7846 on SPI and 2 nub controllers on I2C */ diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index d2ea68ea678a..7735105561d8 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -85,7 +85,7 @@ static struct omap_board_mux board_mux[] __initdata = { static struct omap_musb_board_data musb_board_data = { .interface_type = MUSB_INTERFACE_ULPI, - .mode = MUSB_PERIPHERAL, + .mode = MUSB_OTG, .power = 0, }; diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c index 2eb19d4d0aa1..e83a6a4b184a 100644 --- a/arch/arm/mach-omap2/usb-host.c +++ b/arch/arm/mach-omap2/usb-host.c @@ -28,7 +28,7 @@ #include <linux/io.h> #include <linux/gpio.h> #include <linux/usb/phy.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include "soc.h" #include "omap_device.h" @@ -349,7 +349,7 @@ static struct fixed_voltage_config hsusb_reg_config = { /* .init_data filled later */ }; -static const char *nop_name = "nop_usb_xceiv"; /* NOP PHY driver */ +static const char *nop_name = "usb_phy_gen_xceiv"; /* NOP PHY driver */ static const char *reg_name = "reg-fixed-voltage"; /* Regulator driver */ /** @@ -460,9 +460,9 @@ int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys) pdevinfo.name = nop_name; pdevinfo.id = phy->port; pdevinfo.data = phy->platform_data; - pdevinfo.size_data = sizeof(struct nop_usb_xceiv_platform_data); - - scnprintf(phy_id, MAX_STR, "nop_usb_xceiv.%d", + pdevinfo.size_data = + sizeof(struct usb_phy_gen_xceiv_platform_data); + scnprintf(phy_id, MAX_STR, "usb_phy_gen_xceiv.%d", phy->port); pdev = platform_device_register_full(&pdevinfo); if (IS_ERR(pdev)) { diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c index 8c4de2708cf2..bc897231bd10 100644 --- a/arch/arm/mach-omap2/usb-musb.c +++ b/arch/arm/mach-omap2/usb-musb.c @@ -38,11 +38,8 @@ static struct musb_hdrc_config musb_config = { }; static struct musb_hdrc_platform_data musb_plat = { -#ifdef CONFIG_USB_GADGET_MUSB_HDRC .mode = MUSB_OTG, -#else - .mode = MUSB_HOST, -#endif + /* .clock is set dynamically */ .config = &musb_config, diff --git a/arch/arm/mach-prima2/common.c b/arch/arm/mach-prima2/common.c index 2c70f74fed5d..e110b6d4ae8c 100644 --- a/arch/arm/mach-prima2/common.c +++ b/arch/arm/mach-prima2/common.c @@ -42,7 +42,6 @@ static const char *atlas6_dt_match[] __initdata = { DT_MACHINE_START(ATLAS6_DT, "Generic ATLAS6 (Flattened Device Tree)") /* Maintainer: Barry Song <baohua.song@csr.com> */ - .nr_irqs = 128, .map_io = sirfsoc_map_io, .init_time = sirfsoc_init_time, .init_late = sirfsoc_init_late, @@ -59,7 +58,6 @@ static const char *prima2_dt_match[] __initdata = { DT_MACHINE_START(PRIMA2_DT, "Generic PRIMA2 (Flattened Device Tree)") /* Maintainer: Barry Song <baohua.song@csr.com> */ - .nr_irqs = 128, .map_io = sirfsoc_map_io, .init_time = sirfsoc_init_time, .dma_zone_size = SZ_256M, diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c index 0d1e4128d460..fc97cfd52769 100644 --- a/arch/arm/mach-tegra/tegra.c +++ b/arch/arm/mach-tegra/tegra.c @@ -29,7 +29,6 @@ #include <linux/of_fdt.h> #include <linux/of_platform.h> #include <linux/pda_power.h> -#include <linux/platform_data/tegra_usb.h> #include <linux/io.h> #include <linux/slab.h> #include <linux/sys_soc.h> @@ -46,40 +45,6 @@ #include "fuse.h" #include "iomap.h" -static struct tegra_ehci_platform_data tegra_ehci1_pdata = { - .operating_mode = TEGRA_USB_OTG, - .power_down_on_bus_suspend = 1, - .vbus_gpio = -1, -}; - -static struct tegra_ulpi_config tegra_ehci2_ulpi_phy_config = { - .reset_gpio = -1, - .clk = "cdev2", -}; - -static struct tegra_ehci_platform_data tegra_ehci2_pdata = { - .phy_config = &tegra_ehci2_ulpi_phy_config, - .operating_mode = TEGRA_USB_HOST, - .power_down_on_bus_suspend = 1, - .vbus_gpio = -1, -}; - -static struct tegra_ehci_platform_data tegra_ehci3_pdata = { - .operating_mode = TEGRA_USB_HOST, - .power_down_on_bus_suspend = 1, - .vbus_gpio = -1, -}; - -static struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("nvidia,tegra20-ehci", 0xC5000000, "tegra-ehci.0", - &tegra_ehci1_pdata), - OF_DEV_AUXDATA("nvidia,tegra20-ehci", 0xC5004000, "tegra-ehci.1", - &tegra_ehci2_pdata), - OF_DEV_AUXDATA("nvidia,tegra20-ehci", 0xC5008000, "tegra-ehci.2", - &tegra_ehci3_pdata), - {} -}; - static void __init tegra_dt_init(void) { struct soc_device_attribute *soc_dev_attr; @@ -112,8 +77,7 @@ static void __init tegra_dt_init(void) * devices */ out: - of_platform_populate(NULL, of_default_bus_match_table, - tegra20_auxdata_lookup, parent); + of_platform_populate(NULL, of_default_bus_match_table, NULL, parent); } static void __init trimslice_init(void) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index db5c2cab8fda..cd2c88e7a8f7 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -809,15 +809,18 @@ config KUSER_HELPERS the CPU type fitted to the system. This permits binaries to be run on ARMv4 through to ARMv7 without modification. + See Documentation/arm/kernel_user_helpers.txt for details. + However, the fixed address nature of these helpers can be used by ROP (return orientated programming) authors when creating exploits. If all of the binaries and libraries which run on your platform are built specifically for your platform, and make no use of - these helpers, then you can turn this option off. However, - when such an binary or library is run, it will receive a SIGILL - signal, which will terminate the program. + these helpers, then you can turn this option off to hinder + such exploits. However, in that case, if a binary or library + relying on those helpers is run, it will receive a SIGILL signal, + which will terminate the program. Say N here only if you are absolutely certain that you do not need these helpers; otherwise, the safe option is to say Y. diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c index 3e5c4619caa5..50a3ea0037db 100644 --- a/arch/arm/plat-samsung/init.c +++ b/arch/arm/plat-samsung/init.c @@ -55,12 +55,13 @@ void __init s3c_init_cpu(unsigned long idcode, printk("CPU %s (id 0x%08lx)\n", cpu->name, idcode); - if (cpu->map_io == NULL || cpu->init == NULL) { + if (cpu->init == NULL) { printk(KERN_ERR "CPU %s support not enabled\n", cpu->name); panic("Unsupported Samsung CPU"); } - cpu->map_io(); + if (cpu->map_io) + cpu->map_io(); } /* s3c24xx_init_clocks diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index c9770ba5c7df..8a6295c86209 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -170,6 +170,7 @@ static void __init xen_percpu_init(void *unused) per_cpu(xen_vcpu, cpu) = vcpup; enable_percpu_irq(xen_events_irq, 0); + put_cpu(); } static void xen_restart(enum reboot_mode reboot_mode, const char *cmd) diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h index c92de4163eba..b25763bc0ec4 100644 --- a/arch/arm64/include/asm/kvm_asm.h +++ b/arch/arm64/include/asm/kvm_asm.h @@ -42,14 +42,15 @@ #define TPIDR_EL1 18 /* Thread ID, Privileged */ #define AMAIR_EL1 19 /* Aux Memory Attribute Indirection Register */ #define CNTKCTL_EL1 20 /* Timer Control Register (EL1) */ +#define PAR_EL1 21 /* Physical Address Register */ /* 32bit specific registers. Keep them at the end of the range */ -#define DACR32_EL2 21 /* Domain Access Control Register */ -#define IFSR32_EL2 22 /* Instruction Fault Status Register */ -#define FPEXC32_EL2 23 /* Floating-Point Exception Control Register */ -#define DBGVCR32_EL2 24 /* Debug Vector Catch Register */ -#define TEECR32_EL1 25 /* ThumbEE Configuration Register */ -#define TEEHBR32_EL1 26 /* ThumbEE Handler Base Register */ -#define NR_SYS_REGS 27 +#define DACR32_EL2 22 /* Domain Access Control Register */ +#define IFSR32_EL2 23 /* Instruction Fault Status Register */ +#define FPEXC32_EL2 24 /* Floating-Point Exception Control Register */ +#define DBGVCR32_EL2 25 /* Debug Vector Catch Register */ +#define TEECR32_EL1 26 /* ThumbEE Configuration Register */ +#define TEEHBR32_EL1 27 /* ThumbEE Handler Base Register */ +#define NR_SYS_REGS 28 /* 32bit mapping */ #define c0_MPIDR (MPIDR_EL1 * 2) /* MultiProcessor ID Register */ @@ -69,6 +70,8 @@ #define c5_AIFSR (AFSR1_EL1 * 2) /* Auxiliary Instr Fault Status R */ #define c6_DFAR (FAR_EL1 * 2) /* Data Fault Address Register */ #define c6_IFAR (c6_DFAR + 1) /* Instruction Fault Address Register */ +#define c7_PAR (PAR_EL1 * 2) /* Physical Address Register */ +#define c7_PAR_high (c7_PAR + 1) /* PAR top 32 bits */ #define c10_PRRR (MAIR_EL1 * 2) /* Primary Region Remap Register */ #define c10_NMRR (c10_PRRR + 1) /* Normal Memory Remap Register */ #define c12_VBAR (VBAR_EL1 * 2) /* Vector Base Address Register */ diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 644d73956864..0859a4ddd1e7 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -129,7 +129,7 @@ struct kvm_vcpu_arch { struct kvm_mmu_memory_cache mmu_page_cache; /* Target CPU and feature flags */ - u32 target; + int target; DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES); /* Detect first run of a vcpu */ diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index 9ba33c40cdf8..12e6ccb88691 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -107,7 +107,12 @@ armpmu_map_cache_event(const unsigned (*cache_map) static int armpmu_map_event(const unsigned (*event_map)[PERF_COUNT_HW_MAX], u64 config) { - int mapping = (*event_map)[config]; + int mapping; + + if (config >= PERF_COUNT_HW_MAX) + return -EINVAL; + + mapping = (*event_map)[config]; return mapping == HW_OP_UNSUPPORTED ? -ENOENT : mapping; } @@ -317,6 +322,9 @@ validate_event(struct pmu_hw_events *hw_events, struct hw_perf_event fake_event = event->hw; struct pmu *leader_pmu = event->group_leader->pmu; + if (is_software_event(event)) + return 1; + if (event->pmu != leader_pmu || event->state <= PERF_EVENT_STATE_OFF) return 1; diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S index ff985e3d8b72..1ac0bbbdddb2 100644 --- a/arch/arm64/kvm/hyp.S +++ b/arch/arm64/kvm/hyp.S @@ -214,6 +214,7 @@ __kvm_hyp_code_start: mrs x21, tpidr_el1 mrs x22, amair_el1 mrs x23, cntkctl_el1 + mrs x24, par_el1 stp x4, x5, [x3] stp x6, x7, [x3, #16] @@ -225,6 +226,7 @@ __kvm_hyp_code_start: stp x18, x19, [x3, #112] stp x20, x21, [x3, #128] stp x22, x23, [x3, #144] + str x24, [x3, #160] .endm .macro restore_sysregs @@ -243,6 +245,7 @@ __kvm_hyp_code_start: ldp x18, x19, [x3, #112] ldp x20, x21, [x3, #128] ldp x22, x23, [x3, #144] + ldr x24, [x3, #160] msr vmpidr_el2, x4 msr csselr_el1, x5 @@ -264,6 +267,7 @@ __kvm_hyp_code_start: msr tpidr_el1, x21 msr amair_el1, x22 msr cntkctl_el1, x23 + msr par_el1, x24 .endm .macro skip_32bit_state tmp, target @@ -600,6 +604,8 @@ END(__kvm_vcpu_run) // void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa); ENTRY(__kvm_tlb_flush_vmid_ipa) + dsb ishst + kern_hyp_va x0 ldr x2, [x0, #KVM_VTTBR] msr vttbr_el2, x2 @@ -621,6 +627,7 @@ ENTRY(__kvm_tlb_flush_vmid_ipa) ENDPROC(__kvm_tlb_flush_vmid_ipa) ENTRY(__kvm_flush_vm_context) + dsb ishst tlbi alle1is ic ialluis dsb sy @@ -753,6 +760,10 @@ el1_trap: */ tbnz x1, #7, 1f // S1PTW is set + /* Preserve PAR_EL1 */ + mrs x3, par_el1 + push x3, xzr + /* * Permission fault, HPFAR_EL2 is invalid. * Resolve the IPA the hard way using the guest VA. @@ -766,6 +777,8 @@ el1_trap: /* Read result */ mrs x3, par_el1 + pop x0, xzr // Restore PAR_EL1 from the stack + msr par_el1, x0 tbnz x3, #0, 3f // Bail out if we failed the translation ubfx x3, x3, #12, #36 // Extract IPA lsl x3, x3, #4 // and present it like HPFAR diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 94923609753b..02e9d09e1d80 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -211,6 +211,9 @@ static const struct sys_reg_desc sys_reg_descs[] = { /* FAR_EL1 */ { Op0(0b11), Op1(0b000), CRn(0b0110), CRm(0b0000), Op2(0b000), NULL, reset_unknown, FAR_EL1 }, + /* PAR_EL1 */ + { Op0(0b11), Op1(0b000), CRn(0b0111), CRm(0b0100), Op2(0b000), + NULL, reset_unknown, PAR_EL1 }, /* PMINTENSET_EL1 */ { Op0(0b11), Op1(0b000), CRn(0b1001), CRm(0b1110), Op2(0b001), diff --git a/arch/m68k/emu/natfeat.c b/arch/m68k/emu/natfeat.c index fa277aecfb78..121a6660ad4e 100644 --- a/arch/m68k/emu/natfeat.c +++ b/arch/m68k/emu/natfeat.c @@ -18,11 +18,11 @@ #include <asm/machdep.h> #include <asm/natfeat.h> -extern long nf_get_id2(const char *feature_name); +extern long nf_get_id_phys(unsigned long feature_name); asm("\n" -" .global nf_get_id2,nf_call\n" -"nf_get_id2:\n" +" .global nf_get_id_phys,nf_call\n" +"nf_get_id_phys:\n" " .short 0x7300\n" " rts\n" "nf_call:\n" @@ -31,7 +31,7 @@ asm("\n" "1: moveq.l #0,%d0\n" " rts\n" " .section __ex_table,\"a\"\n" -" .long nf_get_id2,1b\n" +" .long nf_get_id_phys,1b\n" " .long nf_call,1b\n" " .previous"); EXPORT_SYMBOL_GPL(nf_call); @@ -46,7 +46,7 @@ long nf_get_id(const char *feature_name) if (n >= sizeof(name_copy)) return 0; - return nf_get_id2(name_copy); + return nf_get_id_phys(virt_to_phys(name_copy)); } EXPORT_SYMBOL_GPL(nf_get_id); @@ -58,7 +58,7 @@ void nfprint(const char *fmt, ...) va_start(ap, fmt); n = vsnprintf(buf, 256, fmt, ap); - nf_call(nf_get_id("NF_STDERR"), buf); + nf_call(nf_get_id("NF_STDERR"), virt_to_phys(buf)); va_end(ap); } @@ -83,7 +83,7 @@ void nf_init(void) id = nf_get_id("NF_NAME"); if (!id) return; - nf_call(id, buf, 256); + nf_call(id, virt_to_phys(buf), 256); buf[255] = 0; pr_info("NatFeats found (%s, %lu.%lu)\n", buf, version >> 16, diff --git a/arch/m68k/emu/nfblock.c b/arch/m68k/emu/nfblock.c index e3011338ab40..0721858fbd1e 100644 --- a/arch/m68k/emu/nfblock.c +++ b/arch/m68k/emu/nfblock.c @@ -41,8 +41,8 @@ static inline s32 nfhd_read_write(u32 major, u32 minor, u32 rwflag, u32 recno, static inline s32 nfhd_get_capacity(u32 major, u32 minor, u32 *blocks, u32 *blocksize) { - return nf_call(nfhd_id + NFHD_GET_CAPACITY, major, minor, blocks, - blocksize); + return nf_call(nfhd_id + NFHD_GET_CAPACITY, major, minor, + virt_to_phys(blocks), virt_to_phys(blocksize)); } static LIST_HEAD(nfhd_list); diff --git a/arch/m68k/emu/nfcon.c b/arch/m68k/emu/nfcon.c index 6685bf45c2c3..57e8c8fb5eba 100644 --- a/arch/m68k/emu/nfcon.c +++ b/arch/m68k/emu/nfcon.c @@ -15,6 +15,7 @@ #include <linux/slab.h> #include <linux/err.h> #include <linux/uaccess.h> +#include <linux/io.h> #include <asm/natfeat.h> @@ -25,17 +26,18 @@ static struct tty_driver *nfcon_tty_driver; static void nfputs(const char *str, unsigned int count) { char buf[68]; + unsigned long phys = virt_to_phys(buf); buf[64] = 0; while (count > 64) { memcpy(buf, str, 64); - nf_call(stderr_id, buf); + nf_call(stderr_id, phys); str += 64; count -= 64; } memcpy(buf, str, count); buf[count] = 0; - nf_call(stderr_id, buf); + nf_call(stderr_id, phys); } static void nfcon_write(struct console *con, const char *str, @@ -79,7 +81,7 @@ static int nfcon_tty_put_char(struct tty_struct *tty, unsigned char ch) { char temp[2] = { ch, 0 }; - nf_call(stderr_id, temp); + nf_call(stderr_id, virt_to_phys(temp)); return 1; } diff --git a/arch/m68k/emu/nfeth.c b/arch/m68k/emu/nfeth.c index 695cd737a42e..a0985fd088d1 100644 --- a/arch/m68k/emu/nfeth.c +++ b/arch/m68k/emu/nfeth.c @@ -195,7 +195,8 @@ static struct net_device * __init nfeth_probe(int unit) char mac[ETH_ALEN], host_ip[32], local_ip[32]; int err; - if (!nf_call(nfEtherID + XIF_GET_MAC, unit, mac, ETH_ALEN)) + if (!nf_call(nfEtherID + XIF_GET_MAC, unit, virt_to_phys(mac), + ETH_ALEN)) return NULL; dev = alloc_etherdev(sizeof(struct nfeth_private)); @@ -217,9 +218,9 @@ static struct net_device * __init nfeth_probe(int unit) } nf_call(nfEtherID + XIF_GET_IPHOST, unit, - host_ip, sizeof(host_ip)); + virt_to_phys(host_ip), sizeof(host_ip)); nf_call(nfEtherID + XIF_GET_IPATARI, unit, - local_ip, sizeof(local_ip)); + virt_to_phys(local_ip), sizeof(local_ip)); netdev_info(dev, KBUILD_MODNAME " addr:%s (%s) HWaddr:%pM\n", host_ip, local_ip, mac); diff --git a/arch/m68k/include/asm/irqflags.h b/arch/m68k/include/asm/irqflags.h index 7ef4115b8c4a..5053092b369f 100644 --- a/arch/m68k/include/asm/irqflags.h +++ b/arch/m68k/include/asm/irqflags.h @@ -67,6 +67,10 @@ static inline void arch_local_irq_restore(unsigned long flags) static inline bool arch_irqs_disabled_flags(unsigned long flags) { + if (MACH_IS_ATARI) { + /* Ignore HSYNC = ipl 2 on Atari */ + return (flags & ~(ALLOWINT | 0x200)) != 0; + } return (flags & ~ALLOWINT) != 0; } diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index e773659ccf9f..46048d24328c 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -803,6 +803,32 @@ static int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, dec_insn.next_pc_inc; return 1; break; +#ifdef CONFIG_CPU_CAVIUM_OCTEON + case lwc2_op: /* This is bbit0 on Octeon */ + if ((regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt)) == 0) + *contpc = regs->cp0_epc + 4 + (insn.i_format.simmediate << 2); + else + *contpc = regs->cp0_epc + 8; + return 1; + case ldc2_op: /* This is bbit032 on Octeon */ + if ((regs->regs[insn.i_format.rs] & (1ull<<(insn.i_format.rt + 32))) == 0) + *contpc = regs->cp0_epc + 4 + (insn.i_format.simmediate << 2); + else + *contpc = regs->cp0_epc + 8; + return 1; + case swc2_op: /* This is bbit1 on Octeon */ + if (regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt)) + *contpc = regs->cp0_epc + 4 + (insn.i_format.simmediate << 2); + else + *contpc = regs->cp0_epc + 8; + return 1; + case sdc2_op: /* This is bbit132 on Octeon */ + if (regs->regs[insn.i_format.rs] & (1ull<<(insn.i_format.rt + 32))) + *contpc = regs->cp0_epc + 4 + (insn.i_format.simmediate << 2); + else + *contpc = regs->cp0_epc + 8; + return 1; +#endif case cop0_op: case cop1_op: case cop2_op: diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index dbd9d3c991e8..9cf59816d3e9 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -979,6 +979,7 @@ config RELOCATABLE must live at a different physical address than the primary kernel. +# This value must have zeroes in the bottom 60 bits otherwise lots will break config PAGE_OFFSET hex default "0xc000000000000000" diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index 988c812aab5b..b9f426212d3a 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -211,9 +211,19 @@ extern long long virt_phys_offset; #define __va(x) ((void *)(unsigned long)((phys_addr_t)(x) + VIRT_PHYS_OFFSET)) #define __pa(x) ((unsigned long)(x) - VIRT_PHYS_OFFSET) #else +#ifdef CONFIG_PPC64 +/* + * gcc miscompiles (unsigned long)(&static_var) - PAGE_OFFSET + * with -mcmodel=medium, so we use & and | instead of - and + on 64-bit. + */ +#define __va(x) ((void *)(unsigned long)((phys_addr_t)(x) | PAGE_OFFSET)) +#define __pa(x) ((unsigned long)(x) & 0x0fffffffffffffffUL) + +#else /* 32-bit, non book E */ #define __va(x) ((void *)(unsigned long)((phys_addr_t)(x) + PAGE_OFFSET - MEMORY_START)) #define __pa(x) ((unsigned long)(x) - PAGE_OFFSET + MEMORY_START) #endif +#endif /* * Unfortunately the PLT is in the BSS in the PPC32 ELF ABI, diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index d92f3871e9cf..e2a0a162299b 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -35,7 +35,13 @@ #include <asm/vdso_datapage.h> #include <asm/vio.h> #include <asm/mmu.h> +#include <asm/machdep.h> + +/* + * This isn't a module but we expose that to userspace + * via /proc so leave the definitions here + */ #define MODULE_VERS "1.9" #define MODULE_NAME "lparcfg" @@ -418,7 +424,8 @@ static void parse_em_data(struct seq_file *m) { unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; - if (plpar_hcall(H_GET_EM_PARMS, retbuf) == H_SUCCESS) + if (firmware_has_feature(FW_FEATURE_LPAR) && + plpar_hcall(H_GET_EM_PARMS, retbuf) == H_SUCCESS) seq_printf(m, "power_mode_data=%016lx\n", retbuf[0]); } @@ -677,7 +684,6 @@ static int lparcfg_open(struct inode *inode, struct file *file) } static const struct file_operations lparcfg_fops = { - .owner = THIS_MODULE, .read = seq_read, .write = lparcfg_write, .open = lparcfg_open, @@ -699,14 +705,4 @@ static int __init lparcfg_init(void) } return 0; } - -static void __exit lparcfg_cleanup(void) -{ - remove_proc_subtree("powerpc/lparcfg", NULL); -} - -module_init(lparcfg_init); -module_exit(lparcfg_cleanup); -MODULE_DESCRIPTION("Interface for LPAR configuration data"); -MODULE_AUTHOR("Dave Engebretsen"); -MODULE_LICENSE("GPL"); +machine_device_initcall(pseries, lparcfg_init); diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 8a4cae78f03c..8b7892bf6d8b 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -116,6 +116,7 @@ config S390 select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_TRACE_MCOUNT_TEST + select HAVE_GENERIC_HARDIRQS select HAVE_KERNEL_BZIP2 select HAVE_KERNEL_GZIP select HAVE_KERNEL_LZ4 @@ -445,6 +446,16 @@ config PCI_NR_FUNCTIONS This allows you to specify the maximum number of PCI functions which this kernel will support. +config PCI_NR_MSI + int "Maximum number of MSI interrupts (64-32768)" + range 64 32768 + default "256" + help + This defines the number of virtual interrupts the kernel will + provide for MSI interrupts. If you configure your system to have + too few drivers will fail to allocate MSI interrupts for all + PCI devices. + source "drivers/pci/Kconfig" source "drivers/pci/pcie/Kconfig" source "drivers/pci/hotplug/Kconfig" diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index 4066cee0c2d2..4bbb5957ed1b 100644 --- a/arch/s390/include/asm/airq.h +++ b/arch/s390/include/asm/airq.h @@ -9,6 +9,8 @@ #ifndef _ASM_S390_AIRQ_H #define _ASM_S390_AIRQ_H +#include <linux/bit_spinlock.h> + struct airq_struct { struct hlist_node list; /* Handler queueing. */ void (*handler)(struct airq_struct *); /* Thin-interrupt handler */ @@ -23,4 +25,69 @@ struct airq_struct { int register_adapter_interrupt(struct airq_struct *airq); void unregister_adapter_interrupt(struct airq_struct *airq); +/* Adapter interrupt bit vector */ +struct airq_iv { + unsigned long *vector; /* Adapter interrupt bit vector */ + unsigned long *avail; /* Allocation bit mask for the bit vector */ + unsigned long *bitlock; /* Lock bit mask for the bit vector */ + unsigned long *ptr; /* Pointer associated with each bit */ + unsigned int *data; /* 32 bit value associated with each bit */ + unsigned long bits; /* Number of bits in the vector */ + unsigned long end; /* Number of highest allocated bit + 1 */ + spinlock_t lock; /* Lock to protect alloc & free */ +}; + +#define AIRQ_IV_ALLOC 1 /* Use an allocation bit mask */ +#define AIRQ_IV_BITLOCK 2 /* Allocate the lock bit mask */ +#define AIRQ_IV_PTR 4 /* Allocate the ptr array */ +#define AIRQ_IV_DATA 8 /* Allocate the data array */ + +struct airq_iv *airq_iv_create(unsigned long bits, unsigned long flags); +void airq_iv_release(struct airq_iv *iv); +unsigned long airq_iv_alloc_bit(struct airq_iv *iv); +void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit); +unsigned long airq_iv_scan(struct airq_iv *iv, unsigned long start, + unsigned long end); + +static inline unsigned long airq_iv_end(struct airq_iv *iv) +{ + return iv->end; +} + +static inline void airq_iv_lock(struct airq_iv *iv, unsigned long bit) +{ + const unsigned long be_to_le = BITS_PER_LONG - 1; + bit_spin_lock(bit ^ be_to_le, iv->bitlock); +} + +static inline void airq_iv_unlock(struct airq_iv *iv, unsigned long bit) +{ + const unsigned long be_to_le = BITS_PER_LONG - 1; + bit_spin_unlock(bit ^ be_to_le, iv->bitlock); +} + +static inline void airq_iv_set_data(struct airq_iv *iv, unsigned long bit, + unsigned int data) +{ + iv->data[bit] = data; +} + +static inline unsigned int airq_iv_get_data(struct airq_iv *iv, + unsigned long bit) +{ + return iv->data[bit]; +} + +static inline void airq_iv_set_ptr(struct airq_iv *iv, unsigned long bit, + unsigned long ptr) +{ + iv->ptr[bit] = ptr; +} + +static inline unsigned long airq_iv_get_ptr(struct airq_iv *iv, + unsigned long bit) +{ + return iv->ptr[bit]; +} + #endif /* _ASM_S390_AIRQ_H */ diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 7d4676758733..10135a38673c 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -216,7 +216,7 @@ static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); asm volatile( " oc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" ); + : "+Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc"); } static inline void @@ -244,7 +244,7 @@ __clear_bit(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); asm volatile( " nc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) : "cc" ); + : "+Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) : "cc"); } static inline void @@ -271,7 +271,7 @@ static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); asm volatile( " xc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" ); + : "+Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc"); } static inline void @@ -301,7 +301,7 @@ test_and_set_bit_simple(unsigned long nr, volatile unsigned long *ptr) ch = *(unsigned char *) addr; asm volatile( " oc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) + : "+Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc", "memory"); return (ch >> (nr & 7)) & 1; } @@ -320,7 +320,7 @@ test_and_clear_bit_simple(unsigned long nr, volatile unsigned long *ptr) ch = *(unsigned char *) addr; asm volatile( " nc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) + : "+Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) : "cc", "memory"); return (ch >> (nr & 7)) & 1; } @@ -339,7 +339,7 @@ test_and_change_bit_simple(unsigned long nr, volatile unsigned long *ptr) ch = *(unsigned char *) addr; asm volatile( " xc %O0(1,%R0),%1" - : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) + : "+Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc", "memory"); return (ch >> (nr & 7)) & 1; } diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index ffb898961c8d..d42625053c37 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -296,6 +296,7 @@ static inline int ccw_dev_id_is_equal(struct ccw_dev_id *dev_id1, return 0; } +void channel_subsystem_reinit(void); extern void css_schedule_reprobe(void); extern void reipl_ccw_dev(struct ccw_dev_id *id); diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h index 0c82ba86e997..a908d2941c5d 100644 --- a/arch/s390/include/asm/hardirq.h +++ b/arch/s390/include/asm/hardirq.h @@ -20,4 +20,9 @@ #define HARDIRQ_BITS 8 +static inline void ack_bad_irq(unsigned int irq) +{ + printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq); +} + #endif /* __ASM_HARDIRQ_H */ diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index bd90359d6d22..11eae5f55b70 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -17,6 +17,9 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte); +pte_t huge_ptep_get(pte_t *ptep); +pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep); /* * If the arch doesn't supply something else, assume that hugepage @@ -38,147 +41,75 @@ static inline int prepare_hugepage_range(struct file *file, int arch_prepare_hugepage(struct page *page); void arch_release_hugepage(struct page *page); -static inline pte_t huge_pte_wrprotect(pte_t pte) +static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep) { - pte_val(pte) |= _PAGE_RO; - return pte; + pte_val(*ptep) = _SEGMENT_ENTRY_EMPTY; } -static inline int huge_pte_none(pte_t pte) +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long address, pte_t *ptep) { - return (pte_val(pte) & _SEGMENT_ENTRY_INV) && - !(pte_val(pte) & _SEGMENT_ENTRY_RO); + huge_ptep_get_and_clear(vma->vm_mm, address, ptep); } -static inline pte_t huge_ptep_get(pte_t *ptep) +static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, + pte_t pte, int dirty) { - pte_t pte = *ptep; - unsigned long mask; - - if (!MACHINE_HAS_HPAGE) { - ptep = (pte_t *) (pte_val(pte) & _SEGMENT_ENTRY_ORIGIN); - if (ptep) { - mask = pte_val(pte) & - (_SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO); - pte = pte_mkhuge(*ptep); - pte_val(pte) |= mask; - } + int changed = !pte_same(huge_ptep_get(ptep), pte); + if (changed) { + huge_ptep_get_and_clear(vma->vm_mm, addr, ptep); + set_huge_pte_at(vma->vm_mm, addr, ptep, pte); } - return pte; + return changed; } -static inline void __pmd_csp(pmd_t *pmdp) +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) { - register unsigned long reg2 asm("2") = pmd_val(*pmdp); - register unsigned long reg3 asm("3") = pmd_val(*pmdp) | - _SEGMENT_ENTRY_INV; - register unsigned long reg4 asm("4") = ((unsigned long) pmdp) + 5; - - asm volatile( - " csp %1,%3" - : "=m" (*pmdp) - : "d" (reg2), "d" (reg3), "d" (reg4), "m" (*pmdp) : "cc"); + pte_t pte = huge_ptep_get_and_clear(mm, addr, ptep); + set_huge_pte_at(mm, addr, ptep, pte_wrprotect(pte)); } -static inline void huge_ptep_invalidate(struct mm_struct *mm, - unsigned long address, pte_t *ptep) -{ - pmd_t *pmdp = (pmd_t *) ptep; - - if (MACHINE_HAS_IDTE) - __pmd_idte(address, pmdp); - else - __pmd_csp(pmdp); - pmd_val(*pmdp) = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY; -} - -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - pte_t pte = huge_ptep_get(ptep); - - huge_ptep_invalidate(mm, addr, ptep); - return pte; -} - -#define huge_ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty) \ -({ \ - int __changed = !pte_same(huge_ptep_get(__ptep), __entry); \ - if (__changed) { \ - huge_ptep_invalidate((__vma)->vm_mm, __addr, __ptep); \ - set_huge_pte_at((__vma)->vm_mm, __addr, __ptep, __entry); \ - } \ - __changed; \ -}) - -#define huge_ptep_set_wrprotect(__mm, __addr, __ptep) \ -({ \ - pte_t __pte = huge_ptep_get(__ptep); \ - if (huge_pte_write(__pte)) { \ - huge_ptep_invalidate(__mm, __addr, __ptep); \ - set_huge_pte_at(__mm, __addr, __ptep, \ - huge_pte_wrprotect(__pte)); \ - } \ -}) - -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) +static inline pte_t mk_huge_pte(struct page *page, pgprot_t pgprot) { - huge_ptep_invalidate(vma->vm_mm, address, ptep); + return mk_pte(page, pgprot); } -static inline pte_t mk_huge_pte(struct page *page, pgprot_t pgprot) +static inline int huge_pte_none(pte_t pte) { - pte_t pte; - pmd_t pmd; - - pmd = mk_pmd_phys(page_to_phys(page), pgprot); - pte_val(pte) = pmd_val(pmd); - return pte; + return pte_none(pte); } static inline int huge_pte_write(pte_t pte) { - pmd_t pmd; - - pmd_val(pmd) = pte_val(pte); - return pmd_write(pmd); + return pte_write(pte); } static inline int huge_pte_dirty(pte_t pte) { - /* No dirty bit in the segment table entry. */ - return 0; + return pte_dirty(pte); } static inline pte_t huge_pte_mkwrite(pte_t pte) { - pmd_t pmd; - - pmd_val(pmd) = pte_val(pte); - pte_val(pte) = pmd_val(pmd_mkwrite(pmd)); - return pte; + return pte_mkwrite(pte); } static inline pte_t huge_pte_mkdirty(pte_t pte) { - /* No dirty bit in the segment table entry. */ - return pte; + return pte_mkdirty(pte); } -static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot) +static inline pte_t huge_pte_wrprotect(pte_t pte) { - pmd_t pmd; - - pmd_val(pmd) = pte_val(pte); - pte_val(pte) = pmd_val(pmd_modify(pmd, newprot)); - return pte; + return pte_wrprotect(pte); } -static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep) +static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot) { - pmd_clear((pmd_t *) ptep); + return pte_modify(pte, newprot); } #endif /* _ASM_S390_HUGETLB_H */ diff --git a/arch/s390/include/asm/hw_irq.h b/arch/s390/include/asm/hw_irq.h index 7e3d2586c1ff..ee96a8b697f9 100644 --- a/arch/s390/include/asm/hw_irq.h +++ b/arch/s390/include/asm/hw_irq.h @@ -4,19 +4,8 @@ #include <linux/msi.h> #include <linux/pci.h> -static inline struct msi_desc *irq_get_msi_desc(unsigned int irq) -{ - return __irq_get_msi_desc(irq); -} - -/* Must be called with msi map lock held */ -static inline int irq_set_msi_desc(unsigned int irq, struct msi_desc *msi) -{ - if (!msi) - return -EINVAL; - - msi->irq = irq; - return 0; -} +void __init init_airq_interrupts(void); +void __init init_cio_interrupts(void); +void __init init_ext_interrupts(void); #endif diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 87c17bfb2968..1eaa3625803c 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -1,17 +1,28 @@ #ifndef _ASM_IRQ_H #define _ASM_IRQ_H +#define EXT_INTERRUPT 1 +#define IO_INTERRUPT 2 +#define THIN_INTERRUPT 3 + +#define NR_IRQS_BASE 4 + +#ifdef CONFIG_PCI_NR_MSI +# define NR_IRQS (NR_IRQS_BASE + CONFIG_PCI_NR_MSI) +#else +# define NR_IRQS NR_IRQS_BASE +#endif + +/* This number is used when no interrupt has been assigned */ +#define NO_IRQ 0 + +#ifndef __ASSEMBLY__ + #include <linux/hardirq.h> #include <linux/percpu.h> #include <linux/cache.h> #include <linux/types.h> -enum interruption_main_class { - EXTERNAL_INTERRUPT, - IO_INTERRUPT, - NR_IRQS -}; - enum interruption_class { IRQEXT_CLK, IRQEXT_EXC, @@ -72,14 +83,8 @@ void service_subclass_irq_unregister(void); void measurement_alert_subclass_register(void); void measurement_alert_subclass_unregister(void); -#ifdef CONFIG_LOCKDEP -# define disable_irq_nosync_lockdep(irq) disable_irq_nosync(irq) -# define disable_irq_nosync_lockdep_irqsave(irq, flags) \ - disable_irq_nosync(irq) -# define disable_irq_lockdep(irq) disable_irq(irq) -# define enable_irq_lockdep(irq) enable_irq(irq) -# define enable_irq_lockdep_irqrestore(irq, flags) \ - enable_irq(irq) -#endif +#define irq_canonicalize(irq) (irq) + +#endif /* __ASSEMBLY__ */ #endif /* _ASM_IRQ_H */ diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 084e7755ed9b..7b7fce4e8469 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -77,8 +77,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, WARN_ON(atomic_read(&prev->context.attach_count) < 0); atomic_inc(&next->context.attach_count); /* Check for TLBs not flushed yet */ - if (next->context.flush_mm) - __tlb_flush_mm(next); + __tlb_flush_mm_lazy(next); } #define enter_lazy_tlb(mm,tsk) do { } while (0) diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 5d64fb7619cc..1e51f2915b2e 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -32,16 +32,6 @@ void storage_key_init_range(unsigned long start, unsigned long end); -static inline unsigned long pfmf(unsigned long function, unsigned long address) -{ - asm volatile( - " .insn rre,0xb9af0000,%[function],%[address]" - : [address] "+a" (address) - : [function] "d" (function) - : "memory"); - return address; -} - static inline void clear_page(void *page) { register unsigned long reg1 asm ("1") = 0; @@ -150,15 +140,6 @@ static inline int page_reset_referenced(unsigned long addr) #define _PAGE_FP_BIT 0x08 /* HW fetch protection bit */ #define _PAGE_ACC_BITS 0xf0 /* HW access control bits */ -/* - * Test and clear referenced bit in storage key. - */ -#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG -static inline int page_test_and_clear_young(unsigned long pfn) -{ - return page_reset_referenced(pfn << PAGE_SHIFT); -} - struct page; void arch_free_page(struct page *page, int order); void arch_alloc_page(struct page *page, int order); diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 6e577ba0e5da..c290f13d1c47 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -6,6 +6,7 @@ /* must be set before including pci_clp.h */ #define PCI_BAR_COUNT 6 +#include <linux/pci.h> #include <asm-generic/pci.h> #include <asm-generic/pci-dma-compat.h> #include <asm/pci_clp.h> @@ -53,14 +54,9 @@ struct zpci_fmb { atomic64_t unmapped_pages; } __packed __aligned(16); -struct msi_map { - unsigned long irq; - struct msi_desc *msi; - struct hlist_node msi_chain; -}; - -#define ZPCI_NR_MSI_VECS 64 -#define ZPCI_MSI_MASK (ZPCI_NR_MSI_VECS - 1) +#define ZPCI_MSI_VEC_BITS 11 +#define ZPCI_MSI_VEC_MAX (1 << ZPCI_MSI_VEC_BITS) +#define ZPCI_MSI_VEC_MASK (ZPCI_MSI_VEC_MAX - 1) enum zpci_state { ZPCI_FN_STATE_RESERVED, @@ -91,8 +87,7 @@ struct zpci_dev { /* IRQ stuff */ u64 msi_addr; /* MSI address */ - struct zdev_irq_map *irq_map; - struct msi_map *msi_map[ZPCI_NR_MSI_VECS]; + struct airq_iv *aibv; /* adapter interrupt bit vector */ unsigned int aisb; /* number of the summary bit */ /* DMA stuff */ @@ -122,11 +117,6 @@ struct zpci_dev { struct dentry *debugfs_perf; }; -struct pci_hp_callback_ops { - int (*create_slot) (struct zpci_dev *zdev); - void (*remove_slot) (struct zpci_dev *zdev); -}; - static inline bool zdev_enabled(struct zpci_dev *zdev) { return (zdev->fh & (1UL << 31)) ? true : false; @@ -146,32 +136,38 @@ int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64); int zpci_unregister_ioat(struct zpci_dev *, u8); /* CLP */ -int clp_find_pci_devices(void); +int clp_scan_pci_devices(void); +int clp_rescan_pci_devices(void); +int clp_rescan_pci_devices_simple(void); int clp_add_pci_device(u32, u32, int); int clp_enable_fh(struct zpci_dev *, u8); int clp_disable_fh(struct zpci_dev *); -/* MSI */ -struct msi_desc *__irq_get_msi_desc(unsigned int); -int zpci_msi_set_mask_bits(struct msi_desc *, u32, u32); -int zpci_setup_msi_irq(struct zpci_dev *, struct msi_desc *, unsigned int, int); -void zpci_teardown_msi_irq(struct zpci_dev *, struct msi_desc *); -int zpci_msihash_init(void); -void zpci_msihash_exit(void); - #ifdef CONFIG_PCI /* Error handling and recovery */ void zpci_event_error(void *); void zpci_event_availability(void *); +void zpci_rescan(void); #else /* CONFIG_PCI */ static inline void zpci_event_error(void *e) {} static inline void zpci_event_availability(void *e) {} +static inline void zpci_rescan(void) {} #endif /* CONFIG_PCI */ +#ifdef CONFIG_HOTPLUG_PCI_S390 +int zpci_init_slot(struct zpci_dev *); +void zpci_exit_slot(struct zpci_dev *); +#else /* CONFIG_HOTPLUG_PCI_S390 */ +static inline int zpci_init_slot(struct zpci_dev *zdev) +{ + return 0; +} +static inline void zpci_exit_slot(struct zpci_dev *zdev) {} +#endif /* CONFIG_HOTPLUG_PCI_S390 */ + /* Helpers */ struct zpci_dev *get_zdev(struct pci_dev *); struct zpci_dev *get_zdev_by_fid(u32); -bool zpci_fid_present(u32); /* sysfs */ int zpci_sysfs_add_device(struct device *); @@ -181,14 +177,6 @@ void zpci_sysfs_remove_device(struct device *); int zpci_dma_init(void); void zpci_dma_exit(void); -/* Hotplug */ -extern struct mutex zpci_list_lock; -extern struct list_head zpci_list; -extern unsigned int s390_pci_probe; - -void zpci_register_hp_ops(struct pci_hp_callback_ops *); -void zpci_deregister_hp_ops(void); - /* FMB */ int zpci_fmb_enable_device(struct zpci_dev *); int zpci_fmb_disable_device(struct zpci_dev *); diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h index e6a2bdd4d705..df6eac9f0cb4 100644 --- a/arch/s390/include/asm/pci_insn.h +++ b/arch/s390/include/asm/pci_insn.h @@ -79,11 +79,11 @@ struct zpci_fib { } __packed; -int s390pci_mod_fc(u64 req, struct zpci_fib *fib); -int s390pci_refresh_trans(u64 fn, u64 addr, u64 range); -int s390pci_load(u64 *data, u64 req, u64 offset); -int s390pci_store(u64 data, u64 req, u64 offset); -int s390pci_store_block(const u64 *data, u64 req, u64 offset); -void set_irq_ctrl(u16 ctl, char *unused, u8 isc); +int zpci_mod_fc(u64 req, struct zpci_fib *fib); +int zpci_refresh_trans(u64 fn, u64 addr, u64 range); +int zpci_load(u64 *data, u64 req, u64 offset); +int zpci_store(u64 data, u64 req, u64 offset); +int zpci_store_block(const u64 *data, u64 req, u64 offset); +void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc); #endif diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index 83a9caa6ae53..d194d544d694 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -36,7 +36,7 @@ static inline RETTYPE zpci_read_##RETTYPE(const volatile void __iomem *addr) \ u64 data; \ int rc; \ \ - rc = s390pci_load(&data, req, ZPCI_OFFSET(addr)); \ + rc = zpci_load(&data, req, ZPCI_OFFSET(addr)); \ if (rc) \ data = -1ULL; \ return (RETTYPE) data; \ @@ -50,7 +50,7 @@ static inline void zpci_write_##VALTYPE(VALTYPE val, \ u64 req = ZPCI_CREATE_REQ(entry->fh, entry->bar, LENGTH); \ u64 data = (VALTYPE) val; \ \ - s390pci_store(data, req, ZPCI_OFFSET(addr)); \ + zpci_store(data, req, ZPCI_OFFSET(addr)); \ } zpci_read(8, u64) @@ -83,7 +83,7 @@ static inline int zpci_write_single(u64 req, const u64 *data, u64 offset, u8 len val = 0; /* let FW report error */ break; } - return s390pci_store(val, req, offset); + return zpci_store(val, req, offset); } static inline int zpci_read_single(u64 req, u64 *dst, u64 offset, u8 len) @@ -91,7 +91,7 @@ static inline int zpci_read_single(u64 req, u64 *dst, u64 offset, u8 len) u64 data; int cc; - cc = s390pci_load(&data, req, offset); + cc = zpci_load(&data, req, offset); if (cc) goto out; @@ -115,7 +115,7 @@ out: static inline int zpci_write_block(u64 req, const u64 *data, u64 offset) { - return s390pci_store_block(data, req, offset); + return zpci_store_block(data, req, offset); } static inline u8 zpci_get_max_write_size(u64 src, u64 dst, int len, int max) diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 75fb726de91f..9f215b40109e 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -217,63 +217,57 @@ extern unsigned long MODULES_END; /* Hardware bits in the page table entry */ #define _PAGE_CO 0x100 /* HW Change-bit override */ -#define _PAGE_RO 0x200 /* HW read-only bit */ +#define _PAGE_PROTECT 0x200 /* HW read-only bit */ #define _PAGE_INVALID 0x400 /* HW invalid bit */ +#define _PAGE_LARGE 0x800 /* Bit to mark a large pte */ /* Software bits in the page table entry */ -#define _PAGE_SWT 0x001 /* SW pte type bit t */ -#define _PAGE_SWX 0x002 /* SW pte type bit x */ -#define _PAGE_SWC 0x004 /* SW pte changed bit */ -#define _PAGE_SWR 0x008 /* SW pte referenced bit */ -#define _PAGE_SWW 0x010 /* SW pte write bit */ -#define _PAGE_SPECIAL 0x020 /* SW associated with special page */ +#define _PAGE_PRESENT 0x001 /* SW pte present bit */ +#define _PAGE_TYPE 0x002 /* SW pte type bit */ +#define _PAGE_YOUNG 0x004 /* SW pte young bit */ +#define _PAGE_DIRTY 0x008 /* SW pte dirty bit */ +#define _PAGE_READ 0x010 /* SW pte read bit */ +#define _PAGE_WRITE 0x020 /* SW pte write bit */ +#define _PAGE_SPECIAL 0x040 /* SW associated with special page */ #define __HAVE_ARCH_PTE_SPECIAL /* Set of bits not changed in pte_modify */ #define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL | _PAGE_CO | \ - _PAGE_SWC | _PAGE_SWR) - -/* Six different types of pages. */ -#define _PAGE_TYPE_EMPTY 0x400 -#define _PAGE_TYPE_NONE 0x401 -#define _PAGE_TYPE_SWAP 0x403 -#define _PAGE_TYPE_FILE 0x601 /* bit 0x002 is used for offset !! */ -#define _PAGE_TYPE_RO 0x200 -#define _PAGE_TYPE_RW 0x000 + _PAGE_DIRTY | _PAGE_YOUNG) /* - * Only four types for huge pages, using the invalid bit and protection bit - * of a segment table entry. - */ -#define _HPAGE_TYPE_EMPTY 0x020 /* _SEGMENT_ENTRY_INV */ -#define _HPAGE_TYPE_NONE 0x220 -#define _HPAGE_TYPE_RO 0x200 /* _SEGMENT_ENTRY_RO */ -#define _HPAGE_TYPE_RW 0x000 - -/* - * PTE type bits are rather complicated. handle_pte_fault uses pte_present, - * pte_none and pte_file to find out the pte type WITHOUT holding the page - * table lock. ptep_clear_flush on the other hand uses ptep_clear_flush to - * invalidate a given pte. ipte sets the hw invalid bit and clears all tlbs - * for the page. The page table entry is set to _PAGE_TYPE_EMPTY afterwards. - * This change is done while holding the lock, but the intermediate step - * of a previously valid pte with the hw invalid bit set can be observed by - * handle_pte_fault. That makes it necessary that all valid pte types with - * the hw invalid bit set must be distinguishable from the four pte types - * empty, none, swap and file. + * handle_pte_fault uses pte_present, pte_none and pte_file to find out the + * pte type WITHOUT holding the page table lock. The _PAGE_PRESENT bit + * is used to distinguish present from not-present ptes. It is changed only + * with the page table lock held. + * + * The following table gives the different possible bit combinations for + * the pte hardware and software bits in the last 12 bits of a pte: * - * irxt ipte irxt - * _PAGE_TYPE_EMPTY 1000 -> 1000 - * _PAGE_TYPE_NONE 1001 -> 1001 - * _PAGE_TYPE_SWAP 1011 -> 1011 - * _PAGE_TYPE_FILE 11?1 -> 11?1 - * _PAGE_TYPE_RO 0100 -> 1100 - * _PAGE_TYPE_RW 0000 -> 1000 + * 842100000000 + * 000084210000 + * 000000008421 + * .IR...wrdytp + * empty .10...000000 + * swap .10...xxxx10 + * file .11...xxxxx0 + * prot-none, clean, old .11...000001 + * prot-none, clean, young .11...000101 + * prot-none, dirty, old .10...001001 + * prot-none, dirty, young .10...001101 + * read-only, clean, old .11...010001 + * read-only, clean, young .01...010101 + * read-only, dirty, old .11...011001 + * read-only, dirty, young .01...011101 + * read-write, clean, old .11...110001 + * read-write, clean, young .01...110101 + * read-write, dirty, old .10...111001 + * read-write, dirty, young .00...111101 * - * pte_none is true for bits combinations 1000, 1010, 1100, 1110 - * pte_present is true for bits combinations 0000, 0010, 0100, 0110, 1001 - * pte_file is true for bits combinations 1101, 1111 - * swap pte is 1011 and 0001, 0011, 0101, 0111 are invalid. + * pte_present is true for the bit pattern .xx...xxxxx1, (pte & 0x001) == 0x001 + * pte_none is true for the bit pattern .10...xxxx00, (pte & 0x603) == 0x400 + * pte_file is true for the bit pattern .11...xxxxx0, (pte & 0x601) == 0x600 + * pte_swap is true for the bit pattern .10...xxxx10, (pte & 0x603) == 0x402 */ #ifndef CONFIG_64BIT @@ -286,14 +280,25 @@ extern unsigned long MODULES_END; #define _ASCE_TABLE_LENGTH 0x7f /* 128 x 64 entries = 8k */ /* Bits in the segment table entry */ +#define _SEGMENT_ENTRY_BITS 0x7fffffffUL /* Valid segment table bits */ #define _SEGMENT_ENTRY_ORIGIN 0x7fffffc0UL /* page table origin */ -#define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ -#define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ +#define _SEGMENT_ENTRY_PROTECT 0x200 /* page protection bit */ +#define _SEGMENT_ENTRY_INVALID 0x20 /* invalid segment table entry */ #define _SEGMENT_ENTRY_COMMON 0x10 /* common segment bit */ #define _SEGMENT_ENTRY_PTL 0x0f /* page table length */ +#define _SEGMENT_ENTRY_NONE _SEGMENT_ENTRY_PROTECT #define _SEGMENT_ENTRY (_SEGMENT_ENTRY_PTL) -#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INV) +#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INVALID) + +/* + * Segment table entry encoding (I = invalid, R = read-only bit): + * ..R...I..... + * prot-none ..1...1..... + * read-only ..1...0..... + * read-write ..0...0..... + * empty ..0...1..... + */ /* Page status table bits for virtualization */ #define PGSTE_ACC_BITS 0xf0000000UL @@ -303,9 +308,7 @@ extern unsigned long MODULES_END; #define PGSTE_HC_BIT 0x00200000UL #define PGSTE_GR_BIT 0x00040000UL #define PGSTE_GC_BIT 0x00020000UL -#define PGSTE_UR_BIT 0x00008000UL -#define PGSTE_UC_BIT 0x00004000UL /* user dirty (migration) */ -#define PGSTE_IN_BIT 0x00002000UL /* IPTE notify bit */ +#define PGSTE_IN_BIT 0x00008000UL /* IPTE notify bit */ #else /* CONFIG_64BIT */ @@ -324,8 +327,8 @@ extern unsigned long MODULES_END; /* Bits in the region table entry */ #define _REGION_ENTRY_ORIGIN ~0xfffUL/* region/segment table origin */ -#define _REGION_ENTRY_RO 0x200 /* region protection bit */ -#define _REGION_ENTRY_INV 0x20 /* invalid region table entry */ +#define _REGION_ENTRY_PROTECT 0x200 /* region protection bit */ +#define _REGION_ENTRY_INVALID 0x20 /* invalid region table entry */ #define _REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */ #define _REGION_ENTRY_TYPE_R1 0x0c /* region first table type */ #define _REGION_ENTRY_TYPE_R2 0x08 /* region second table type */ @@ -333,29 +336,47 @@ extern unsigned long MODULES_END; #define _REGION_ENTRY_LENGTH 0x03 /* region third length */ #define _REGION1_ENTRY (_REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_LENGTH) -#define _REGION1_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_INV) +#define _REGION1_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R1 | _REGION_ENTRY_INVALID) #define _REGION2_ENTRY (_REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_LENGTH) -#define _REGION2_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_INV) +#define _REGION2_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R2 | _REGION_ENTRY_INVALID) #define _REGION3_ENTRY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_LENGTH) -#define _REGION3_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INV) +#define _REGION3_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INVALID) #define _REGION3_ENTRY_LARGE 0x400 /* RTTE-format control, large page */ #define _REGION3_ENTRY_RO 0x200 /* page protection bit */ #define _REGION3_ENTRY_CO 0x100 /* change-recording override */ /* Bits in the segment table entry */ +#define _SEGMENT_ENTRY_BITS 0xfffffffffffffe33UL +#define _SEGMENT_ENTRY_BITS_LARGE 0xfffffffffff1ff33UL #define _SEGMENT_ENTRY_ORIGIN_LARGE ~0xfffffUL /* large page address */ #define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* segment table origin */ -#define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ -#define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ +#define _SEGMENT_ENTRY_PROTECT 0x200 /* page protection bit */ +#define _SEGMENT_ENTRY_INVALID 0x20 /* invalid segment table entry */ #define _SEGMENT_ENTRY (0) -#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INV) +#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INVALID) #define _SEGMENT_ENTRY_LARGE 0x400 /* STE-format control, large page */ #define _SEGMENT_ENTRY_CO 0x100 /* change-recording override */ +#define _SEGMENT_ENTRY_SPLIT 0x001 /* THP splitting bit */ +#define _SEGMENT_ENTRY_YOUNG 0x002 /* SW segment young bit */ +#define _SEGMENT_ENTRY_NONE _SEGMENT_ENTRY_YOUNG + +/* + * Segment table entry encoding (R = read-only, I = invalid, y = young bit): + * ..R...I...y. + * prot-none, old ..0...1...1. + * prot-none, young ..1...1...1. + * read-only, old ..1...1...0. + * read-only, young ..1...0...1. + * read-write, old ..0...1...0. + * read-write, young ..0...0...1. + * The segment table origin is used to distinguish empty (origin==0) from + * read-write, old segment table entries (origin!=0) + */ + #define _SEGMENT_ENTRY_SPLIT_BIT 0 /* THP splitting bit number */ -#define _SEGMENT_ENTRY_SPLIT (1UL << _SEGMENT_ENTRY_SPLIT_BIT) /* Set of bits not changed in pmd_modify */ #define _SEGMENT_CHG_MASK (_SEGMENT_ENTRY_ORIGIN | _SEGMENT_ENTRY_LARGE \ @@ -369,9 +390,7 @@ extern unsigned long MODULES_END; #define PGSTE_HC_BIT 0x0020000000000000UL #define PGSTE_GR_BIT 0x0004000000000000UL #define PGSTE_GC_BIT 0x0002000000000000UL -#define PGSTE_UR_BIT 0x0000800000000000UL -#define PGSTE_UC_BIT 0x0000400000000000UL /* user dirty (migration) */ -#define PGSTE_IN_BIT 0x0000200000000000UL /* IPTE notify bit */ +#define PGSTE_IN_BIT 0x0000800000000000UL /* IPTE notify bit */ #endif /* CONFIG_64BIT */ @@ -386,14 +405,18 @@ extern unsigned long MODULES_END; /* * Page protection definitions. */ -#define PAGE_NONE __pgprot(_PAGE_TYPE_NONE) -#define PAGE_RO __pgprot(_PAGE_TYPE_RO) -#define PAGE_RW __pgprot(_PAGE_TYPE_RO | _PAGE_SWW) -#define PAGE_RWC __pgprot(_PAGE_TYPE_RW | _PAGE_SWW | _PAGE_SWC) - -#define PAGE_KERNEL PAGE_RWC -#define PAGE_SHARED PAGE_KERNEL -#define PAGE_COPY PAGE_RO +#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_INVALID) +#define PAGE_READ __pgprot(_PAGE_PRESENT | _PAGE_READ | \ + _PAGE_INVALID | _PAGE_PROTECT) +#define PAGE_WRITE __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ + _PAGE_INVALID | _PAGE_PROTECT) + +#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ + _PAGE_YOUNG | _PAGE_DIRTY) +#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ + _PAGE_YOUNG | _PAGE_DIRTY) +#define PAGE_KERNEL_RO __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_YOUNG | \ + _PAGE_PROTECT) /* * On s390 the page table entry has an invalid bit and a read-only bit. @@ -402,35 +425,31 @@ extern unsigned long MODULES_END; */ /*xwr*/ #define __P000 PAGE_NONE -#define __P001 PAGE_RO -#define __P010 PAGE_RO -#define __P011 PAGE_RO -#define __P100 PAGE_RO -#define __P101 PAGE_RO -#define __P110 PAGE_RO -#define __P111 PAGE_RO +#define __P001 PAGE_READ +#define __P010 PAGE_READ +#define __P011 PAGE_READ +#define __P100 PAGE_READ +#define __P101 PAGE_READ +#define __P110 PAGE_READ +#define __P111 PAGE_READ #define __S000 PAGE_NONE -#define __S001 PAGE_RO -#define __S010 PAGE_RW -#define __S011 PAGE_RW -#define __S100 PAGE_RO -#define __S101 PAGE_RO -#define __S110 PAGE_RW -#define __S111 PAGE_RW +#define __S001 PAGE_READ +#define __S010 PAGE_WRITE +#define __S011 PAGE_WRITE +#define __S100 PAGE_READ +#define __S101 PAGE_READ +#define __S110 PAGE_WRITE +#define __S111 PAGE_WRITE /* * Segment entry (large page) protection definitions. */ -#define SEGMENT_NONE __pgprot(_HPAGE_TYPE_NONE) -#define SEGMENT_RO __pgprot(_HPAGE_TYPE_RO) -#define SEGMENT_RW __pgprot(_HPAGE_TYPE_RW) - -static inline int mm_exclusive(struct mm_struct *mm) -{ - return likely(mm == current->active_mm && - atomic_read(&mm->context.attach_count) <= 1); -} +#define SEGMENT_NONE __pgprot(_SEGMENT_ENTRY_INVALID | \ + _SEGMENT_ENTRY_NONE) +#define SEGMENT_READ __pgprot(_SEGMENT_ENTRY_INVALID | \ + _SEGMENT_ENTRY_PROTECT) +#define SEGMENT_WRITE __pgprot(_SEGMENT_ENTRY_INVALID) static inline int mm_has_pgste(struct mm_struct *mm) { @@ -467,7 +486,7 @@ static inline int pgd_none(pgd_t pgd) { if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2) return 0; - return (pgd_val(pgd) & _REGION_ENTRY_INV) != 0UL; + return (pgd_val(pgd) & _REGION_ENTRY_INVALID) != 0UL; } static inline int pgd_bad(pgd_t pgd) @@ -478,7 +497,7 @@ static inline int pgd_bad(pgd_t pgd) * invalid for either table entry. */ unsigned long mask = - ~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INV & + ~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INVALID & ~_REGION_ENTRY_TYPE_MASK & ~_REGION_ENTRY_LENGTH; return (pgd_val(pgd) & mask) != 0; } @@ -494,7 +513,7 @@ static inline int pud_none(pud_t pud) { if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3) return 0; - return (pud_val(pud) & _REGION_ENTRY_INV) != 0UL; + return (pud_val(pud) & _REGION_ENTRY_INVALID) != 0UL; } static inline int pud_large(pud_t pud) @@ -512,7 +531,7 @@ static inline int pud_bad(pud_t pud) * invalid for either table entry. */ unsigned long mask = - ~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INV & + ~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INVALID & ~_REGION_ENTRY_TYPE_MASK & ~_REGION_ENTRY_LENGTH; return (pud_val(pud) & mask) != 0; } @@ -521,30 +540,36 @@ static inline int pud_bad(pud_t pud) static inline int pmd_present(pmd_t pmd) { - unsigned long mask = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO; - return (pmd_val(pmd) & mask) == _HPAGE_TYPE_NONE || - !(pmd_val(pmd) & _SEGMENT_ENTRY_INV); + return pmd_val(pmd) != _SEGMENT_ENTRY_INVALID; } static inline int pmd_none(pmd_t pmd) { - return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) && - !(pmd_val(pmd) & _SEGMENT_ENTRY_RO); + return pmd_val(pmd) == _SEGMENT_ENTRY_INVALID; } static inline int pmd_large(pmd_t pmd) { #ifdef CONFIG_64BIT - return !!(pmd_val(pmd) & _SEGMENT_ENTRY_LARGE); + return (pmd_val(pmd) & _SEGMENT_ENTRY_LARGE) != 0; #else return 0; #endif } +static inline int pmd_prot_none(pmd_t pmd) +{ + return (pmd_val(pmd) & _SEGMENT_ENTRY_INVALID) && + (pmd_val(pmd) & _SEGMENT_ENTRY_NONE); +} + static inline int pmd_bad(pmd_t pmd) { - unsigned long mask = ~_SEGMENT_ENTRY_ORIGIN & ~_SEGMENT_ENTRY_INV; - return (pmd_val(pmd) & mask) != _SEGMENT_ENTRY; +#ifdef CONFIG_64BIT + if (pmd_large(pmd)) + return (pmd_val(pmd) & ~_SEGMENT_ENTRY_BITS_LARGE) != 0; +#endif + return (pmd_val(pmd) & ~_SEGMENT_ENTRY_BITS) != 0; } #define __HAVE_ARCH_PMDP_SPLITTING_FLUSH @@ -563,31 +588,40 @@ extern int pmdp_clear_flush_young(struct vm_area_struct *vma, #define __HAVE_ARCH_PMD_WRITE static inline int pmd_write(pmd_t pmd) { - return (pmd_val(pmd) & _SEGMENT_ENTRY_RO) == 0; + if (pmd_prot_none(pmd)) + return 0; + return (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT) == 0; } static inline int pmd_young(pmd_t pmd) { - return 0; + int young = 0; +#ifdef CONFIG_64BIT + if (pmd_prot_none(pmd)) + young = (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT) != 0; + else + young = (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) != 0; +#endif + return young; } -static inline int pte_none(pte_t pte) +static inline int pte_present(pte_t pte) { - return (pte_val(pte) & _PAGE_INVALID) && !(pte_val(pte) & _PAGE_SWT); + /* Bit pattern: (pte & 0x001) == 0x001 */ + return (pte_val(pte) & _PAGE_PRESENT) != 0; } -static inline int pte_present(pte_t pte) +static inline int pte_none(pte_t pte) { - unsigned long mask = _PAGE_RO | _PAGE_INVALID | _PAGE_SWT | _PAGE_SWX; - return (pte_val(pte) & mask) == _PAGE_TYPE_NONE || - (!(pte_val(pte) & _PAGE_INVALID) && - !(pte_val(pte) & _PAGE_SWT)); + /* Bit pattern: pte == 0x400 */ + return pte_val(pte) == _PAGE_INVALID; } static inline int pte_file(pte_t pte) { - unsigned long mask = _PAGE_RO | _PAGE_INVALID | _PAGE_SWT; - return (pte_val(pte) & mask) == _PAGE_TYPE_FILE; + /* Bit pattern: (pte & 0x601) == 0x600 */ + return (pte_val(pte) & (_PAGE_INVALID | _PAGE_PROTECT | _PAGE_PRESENT)) + == (_PAGE_INVALID | _PAGE_PROTECT); } static inline int pte_special(pte_t pte) @@ -634,6 +668,15 @@ static inline void pgste_set_unlock(pte_t *ptep, pgste_t pgste) #endif } +static inline pgste_t pgste_get(pte_t *ptep) +{ + unsigned long pgste = 0; +#ifdef CONFIG_PGSTE + pgste = *(unsigned long *)(ptep + PTRS_PER_PTE); +#endif + return __pgste(pgste); +} + static inline void pgste_set(pte_t *ptep, pgste_t pgste) { #ifdef CONFIG_PGSTE @@ -644,33 +687,28 @@ static inline void pgste_set(pte_t *ptep, pgste_t pgste) static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste) { #ifdef CONFIG_PGSTE - unsigned long address, bits; - unsigned char skey; + unsigned long address, bits, skey; if (pte_val(*ptep) & _PAGE_INVALID) return pgste; address = pte_val(*ptep) & PAGE_MASK; - skey = page_get_storage_key(address); + skey = (unsigned long) page_get_storage_key(address); bits = skey & (_PAGE_CHANGED | _PAGE_REFERENCED); - /* Clear page changed & referenced bit in the storage key */ - if (bits & _PAGE_CHANGED) + if (!(pgste_val(pgste) & PGSTE_HC_BIT) && (bits & _PAGE_CHANGED)) { + /* Transfer dirty + referenced bit to host bits in pgste */ + pgste_val(pgste) |= bits << 52; page_set_storage_key(address, skey ^ bits, 0); - else if (bits) + } else if (!(pgste_val(pgste) & PGSTE_HR_BIT) && + (bits & _PAGE_REFERENCED)) { + /* Transfer referenced bit to host bit in pgste */ + pgste_val(pgste) |= PGSTE_HR_BIT; page_reset_referenced(address); + } /* Transfer page changed & referenced bit to guest bits in pgste */ pgste_val(pgste) |= bits << 48; /* GR bit & GC bit */ - /* Get host changed & referenced bits from pgste */ - bits |= (pgste_val(pgste) & (PGSTE_HR_BIT | PGSTE_HC_BIT)) >> 52; - /* Transfer page changed & referenced bit to kvm user bits */ - pgste_val(pgste) |= bits << 45; /* PGSTE_UR_BIT & PGSTE_UC_BIT */ - /* Clear relevant host bits in pgste. */ - pgste_val(pgste) &= ~(PGSTE_HR_BIT | PGSTE_HC_BIT); - pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT); /* Copy page access key and fetch protection bit to pgste */ - pgste_val(pgste) |= - (unsigned long) (skey & (_PAGE_ACC_BITS | _PAGE_FP_BIT)) << 56; - /* Transfer referenced bit to pte */ - pte_val(*ptep) |= (bits & _PAGE_REFERENCED) << 1; + pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT); + pgste_val(pgste) |= (skey & (_PAGE_ACC_BITS | _PAGE_FP_BIT)) << 56; #endif return pgste; @@ -679,24 +717,11 @@ static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste) static inline pgste_t pgste_update_young(pte_t *ptep, pgste_t pgste) { #ifdef CONFIG_PGSTE - int young; - if (pte_val(*ptep) & _PAGE_INVALID) return pgste; /* Get referenced bit from storage key */ - young = page_reset_referenced(pte_val(*ptep) & PAGE_MASK); - if (young) - pgste_val(pgste) |= PGSTE_GR_BIT; - /* Get host referenced bit from pgste */ - if (pgste_val(pgste) & PGSTE_HR_BIT) { - pgste_val(pgste) &= ~PGSTE_HR_BIT; - young = 1; - } - /* Transfer referenced bit to kvm user bits and pte */ - if (young) { - pgste_val(pgste) |= PGSTE_UR_BIT; - pte_val(*ptep) |= _PAGE_SWR; - } + if (page_reset_referenced(pte_val(*ptep) & PAGE_MASK)) + pgste_val(pgste) |= PGSTE_HR_BIT | PGSTE_GR_BIT; #endif return pgste; } @@ -723,13 +748,13 @@ static inline void pgste_set_key(pte_t *ptep, pgste_t pgste, pte_t entry) static inline void pgste_set_pte(pte_t *ptep, pte_t entry) { - if (!MACHINE_HAS_ESOP && (pte_val(entry) & _PAGE_SWW)) { + if (!MACHINE_HAS_ESOP && (pte_val(entry) & _PAGE_WRITE)) { /* * Without enhanced suppression-on-protection force * the dirty bit on for all writable ptes. */ - pte_val(entry) |= _PAGE_SWC; - pte_val(entry) &= ~_PAGE_RO; + pte_val(entry) |= _PAGE_DIRTY; + pte_val(entry) &= ~_PAGE_PROTECT; } *ptep = entry; } @@ -841,21 +866,17 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, */ static inline int pte_write(pte_t pte) { - return (pte_val(pte) & _PAGE_SWW) != 0; + return (pte_val(pte) & _PAGE_WRITE) != 0; } static inline int pte_dirty(pte_t pte) { - return (pte_val(pte) & _PAGE_SWC) != 0; + return (pte_val(pte) & _PAGE_DIRTY) != 0; } static inline int pte_young(pte_t pte) { -#ifdef CONFIG_PGSTE - if (pte_val(pte) & _PAGE_SWR) - return 1; -#endif - return 0; + return (pte_val(pte) & _PAGE_YOUNG) != 0; } /* @@ -880,12 +901,12 @@ static inline void pud_clear(pud_t *pud) static inline void pmd_clear(pmd_t *pmdp) { - pmd_val(*pmdp) = _SEGMENT_ENTRY_EMPTY; + pmd_val(*pmdp) = _SEGMENT_ENTRY_INVALID; } static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + pte_val(*ptep) = _PAGE_INVALID; } /* @@ -896,55 +917,63 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { pte_val(pte) &= _PAGE_CHG_MASK; pte_val(pte) |= pgprot_val(newprot); - if ((pte_val(pte) & _PAGE_SWC) && (pte_val(pte) & _PAGE_SWW)) - pte_val(pte) &= ~_PAGE_RO; + /* + * newprot for PAGE_NONE, PAGE_READ and PAGE_WRITE has the + * invalid bit set, clear it again for readable, young pages + */ + if ((pte_val(pte) & _PAGE_YOUNG) && (pte_val(pte) & _PAGE_READ)) + pte_val(pte) &= ~_PAGE_INVALID; + /* + * newprot for PAGE_READ and PAGE_WRITE has the page protection + * bit set, clear it again for writable, dirty pages + */ + if ((pte_val(pte) & _PAGE_DIRTY) && (pte_val(pte) & _PAGE_WRITE)) + pte_val(pte) &= ~_PAGE_PROTECT; return pte; } static inline pte_t pte_wrprotect(pte_t pte) { - pte_val(pte) &= ~_PAGE_SWW; - /* Do not clobber _PAGE_TYPE_NONE pages! */ - if (!(pte_val(pte) & _PAGE_INVALID)) - pte_val(pte) |= _PAGE_RO; + pte_val(pte) &= ~_PAGE_WRITE; + pte_val(pte) |= _PAGE_PROTECT; return pte; } static inline pte_t pte_mkwrite(pte_t pte) { - pte_val(pte) |= _PAGE_SWW; - if (pte_val(pte) & _PAGE_SWC) - pte_val(pte) &= ~_PAGE_RO; + pte_val(pte) |= _PAGE_WRITE; + if (pte_val(pte) & _PAGE_DIRTY) + pte_val(pte) &= ~_PAGE_PROTECT; return pte; } static inline pte_t pte_mkclean(pte_t pte) { - pte_val(pte) &= ~_PAGE_SWC; - /* Do not clobber _PAGE_TYPE_NONE pages! */ - if (!(pte_val(pte) & _PAGE_INVALID)) - pte_val(pte) |= _PAGE_RO; + pte_val(pte) &= ~_PAGE_DIRTY; + pte_val(pte) |= _PAGE_PROTECT; return pte; } static inline pte_t pte_mkdirty(pte_t pte) { - pte_val(pte) |= _PAGE_SWC; - if (pte_val(pte) & _PAGE_SWW) - pte_val(pte) &= ~_PAGE_RO; + pte_val(pte) |= _PAGE_DIRTY; + if (pte_val(pte) & _PAGE_WRITE) + pte_val(pte) &= ~_PAGE_PROTECT; return pte; } static inline pte_t pte_mkold(pte_t pte) { -#ifdef CONFIG_PGSTE - pte_val(pte) &= ~_PAGE_SWR; -#endif + pte_val(pte) &= ~_PAGE_YOUNG; + pte_val(pte) |= _PAGE_INVALID; return pte; } static inline pte_t pte_mkyoung(pte_t pte) { + pte_val(pte) |= _PAGE_YOUNG; + if (pte_val(pte) & _PAGE_READ) + pte_val(pte) &= ~_PAGE_INVALID; return pte; } @@ -957,7 +986,7 @@ static inline pte_t pte_mkspecial(pte_t pte) #ifdef CONFIG_HUGETLB_PAGE static inline pte_t pte_mkhuge(pte_t pte) { - pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO); + pte_val(pte) |= _PAGE_LARGE; return pte; } #endif @@ -974,8 +1003,8 @@ static inline int ptep_test_and_clear_user_dirty(struct mm_struct *mm, if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); pgste = pgste_update_all(ptep, pgste); - dirty = !!(pgste_val(pgste) & PGSTE_UC_BIT); - pgste_val(pgste) &= ~PGSTE_UC_BIT; + dirty = !!(pgste_val(pgste) & PGSTE_HC_BIT); + pgste_val(pgste) &= ~PGSTE_HC_BIT; pgste_set_unlock(ptep, pgste); return dirty; } @@ -994,59 +1023,75 @@ static inline int ptep_test_and_clear_user_young(struct mm_struct *mm, if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); pgste = pgste_update_young(ptep, pgste); - young = !!(pgste_val(pgste) & PGSTE_UR_BIT); - pgste_val(pgste) &= ~PGSTE_UR_BIT; + young = !!(pgste_val(pgste) & PGSTE_HR_BIT); + pgste_val(pgste) &= ~PGSTE_HR_BIT; pgste_set_unlock(ptep, pgste); } return young; } +static inline void __ptep_ipte(unsigned long address, pte_t *ptep) +{ + if (!(pte_val(*ptep) & _PAGE_INVALID)) { +#ifndef CONFIG_64BIT + /* pto must point to the start of the segment table */ + pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00); +#else + /* ipte in zarch mode can do the math */ + pte_t *pto = ptep; +#endif + asm volatile( + " ipte %2,%3" + : "=m" (*ptep) : "m" (*ptep), + "a" (pto), "a" (address)); + } +} + +static inline void ptep_flush_lazy(struct mm_struct *mm, + unsigned long address, pte_t *ptep) +{ + int active = (mm == current->active_mm) ? 1 : 0; + + if (atomic_read(&mm->context.attach_count) > active) + __ptep_ipte(address, ptep); + else + mm->context.flush_mm = 1; +} + #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { pgste_t pgste; pte_t pte; + int young; if (mm_has_pgste(vma->vm_mm)) { pgste = pgste_get_lock(ptep); - pgste = pgste_update_young(ptep, pgste); - pte = *ptep; - *ptep = pte_mkold(pte); - pgste_set_unlock(ptep, pgste); - return pte_young(pte); + pgste = pgste_ipte_notify(vma->vm_mm, addr, ptep, pgste); } - return 0; + + pte = *ptep; + __ptep_ipte(addr, ptep); + young = pte_young(pte); + pte = pte_mkold(pte); + + if (mm_has_pgste(vma->vm_mm)) { + pgste_set_pte(ptep, pte); + pgste_set_unlock(ptep, pgste); + } else + *ptep = pte; + + return young; } #define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH static inline int ptep_clear_flush_young(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) { - /* No need to flush TLB - * On s390 reference bits are in storage key and never in TLB - * With virtualization we handle the reference bit, without we - * we can simply return */ return ptep_test_and_clear_young(vma, address, ptep); } -static inline void __ptep_ipte(unsigned long address, pte_t *ptep) -{ - if (!(pte_val(*ptep) & _PAGE_INVALID)) { -#ifndef CONFIG_64BIT - /* pto must point to the start of the segment table */ - pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00); -#else - /* ipte in zarch mode can do the math */ - pte_t *pto = ptep; -#endif - asm volatile( - " ipte %2,%3" - : "=m" (*ptep) : "m" (*ptep), - "a" (pto), "a" (address)); - } -} - /* * This is hard to understand. ptep_get_and_clear and ptep_clear_flush * both clear the TLB for the unmapped pte. The reason is that @@ -1067,16 +1112,14 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, pgste_t pgste; pte_t pte; - mm->context.flush_mm = 1; if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); pgste = pgste_ipte_notify(mm, address, ptep, pgste); } pte = *ptep; - if (!mm_exclusive(mm)) - __ptep_ipte(address, ptep); - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + ptep_flush_lazy(mm, address, ptep); + pte_val(*ptep) = _PAGE_INVALID; if (mm_has_pgste(mm)) { pgste = pgste_update_all(&pte, pgste); @@ -1093,15 +1136,14 @@ static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, pgste_t pgste; pte_t pte; - mm->context.flush_mm = 1; if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); pgste_ipte_notify(mm, address, ptep, pgste); } pte = *ptep; - if (!mm_exclusive(mm)) - __ptep_ipte(address, ptep); + ptep_flush_lazy(mm, address, ptep); + pte_val(*ptep) |= _PAGE_INVALID; if (mm_has_pgste(mm)) { pgste = pgste_update_all(&pte, pgste); @@ -1117,7 +1159,7 @@ static inline void ptep_modify_prot_commit(struct mm_struct *mm, pgste_t pgste; if (mm_has_pgste(mm)) { - pgste = *(pgste_t *)(ptep + PTRS_PER_PTE); + pgste = pgste_get(ptep); pgste_set_key(ptep, pgste, pte); pgste_set_pte(ptep, pte); pgste_set_unlock(ptep, pgste); @@ -1139,7 +1181,7 @@ static inline pte_t ptep_clear_flush(struct vm_area_struct *vma, pte = *ptep; __ptep_ipte(address, ptep); - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + pte_val(*ptep) = _PAGE_INVALID; if (mm_has_pgste(vma->vm_mm)) { pgste = pgste_update_all(&pte, pgste); @@ -1163,18 +1205,17 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, pgste_t pgste; pte_t pte; - if (mm_has_pgste(mm)) { + if (!full && mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); - if (!full) - pgste = pgste_ipte_notify(mm, address, ptep, pgste); + pgste = pgste_ipte_notify(mm, address, ptep, pgste); } pte = *ptep; if (!full) - __ptep_ipte(address, ptep); - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + ptep_flush_lazy(mm, address, ptep); + pte_val(*ptep) = _PAGE_INVALID; - if (mm_has_pgste(mm)) { + if (!full && mm_has_pgste(mm)) { pgste = pgste_update_all(&pte, pgste); pgste_set_unlock(ptep, pgste); } @@ -1189,14 +1230,12 @@ static inline pte_t ptep_set_wrprotect(struct mm_struct *mm, pte_t pte = *ptep; if (pte_write(pte)) { - mm->context.flush_mm = 1; if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); pgste = pgste_ipte_notify(mm, address, ptep, pgste); } - if (!mm_exclusive(mm)) - __ptep_ipte(address, ptep); + ptep_flush_lazy(mm, address, ptep); pte = pte_wrprotect(pte); if (mm_has_pgste(mm)) { @@ -1240,7 +1279,7 @@ static inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot) { pte_t __pte; pte_val(__pte) = physpage + pgprot_val(pgprot); - return __pte; + return pte_mkyoung(__pte); } static inline pte_t mk_pte(struct page *page, pgprot_t pgprot) @@ -1248,10 +1287,8 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot) unsigned long physpage = page_to_phys(page); pte_t __pte = mk_pte_phys(physpage, pgprot); - if ((pte_val(__pte) & _PAGE_SWW) && PageDirty(page)) { - pte_val(__pte) |= _PAGE_SWC; - pte_val(__pte) &= ~_PAGE_RO; - } + if (pte_write(__pte) && PageDirty(page)) + __pte = pte_mkdirty(__pte); return __pte; } @@ -1313,7 +1350,7 @@ static inline void __pmd_idte(unsigned long address, pmd_t *pmdp) unsigned long sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t); - if (!(pmd_val(*pmdp) & _SEGMENT_ENTRY_INV)) { + if (!(pmd_val(*pmdp) & _SEGMENT_ENTRY_INVALID)) { asm volatile( " .insn rrf,0xb98e0000,%2,%3,0,0" : "=m" (*pmdp) @@ -1324,24 +1361,68 @@ static inline void __pmd_idte(unsigned long address, pmd_t *pmdp) } } +static inline void __pmd_csp(pmd_t *pmdp) +{ + register unsigned long reg2 asm("2") = pmd_val(*pmdp); + register unsigned long reg3 asm("3") = pmd_val(*pmdp) | + _SEGMENT_ENTRY_INVALID; + register unsigned long reg4 asm("4") = ((unsigned long) pmdp) + 5; + + asm volatile( + " csp %1,%3" + : "=m" (*pmdp) + : "d" (reg2), "d" (reg3), "d" (reg4), "m" (*pmdp) : "cc"); +} + #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLB_PAGE) static inline unsigned long massage_pgprot_pmd(pgprot_t pgprot) { /* - * pgprot is PAGE_NONE, PAGE_RO, or PAGE_RW (see __Pxxx / __Sxxx) + * pgprot is PAGE_NONE, PAGE_READ, or PAGE_WRITE (see __Pxxx / __Sxxx) * Convert to segment table entry format. */ if (pgprot_val(pgprot) == pgprot_val(PAGE_NONE)) return pgprot_val(SEGMENT_NONE); - if (pgprot_val(pgprot) == pgprot_val(PAGE_RO)) - return pgprot_val(SEGMENT_RO); - return pgprot_val(SEGMENT_RW); + if (pgprot_val(pgprot) == pgprot_val(PAGE_READ)) + return pgprot_val(SEGMENT_READ); + return pgprot_val(SEGMENT_WRITE); +} + +static inline pmd_t pmd_mkyoung(pmd_t pmd) +{ +#ifdef CONFIG_64BIT + if (pmd_prot_none(pmd)) { + pmd_val(pmd) |= _SEGMENT_ENTRY_PROTECT; + } else { + pmd_val(pmd) |= _SEGMENT_ENTRY_YOUNG; + pmd_val(pmd) &= ~_SEGMENT_ENTRY_INVALID; + } +#endif + return pmd; +} + +static inline pmd_t pmd_mkold(pmd_t pmd) +{ +#ifdef CONFIG_64BIT + if (pmd_prot_none(pmd)) { + pmd_val(pmd) &= ~_SEGMENT_ENTRY_PROTECT; + } else { + pmd_val(pmd) &= ~_SEGMENT_ENTRY_YOUNG; + pmd_val(pmd) |= _SEGMENT_ENTRY_INVALID; + } +#endif + return pmd; } static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot) { + int young; + + young = pmd_young(pmd); pmd_val(pmd) &= _SEGMENT_CHG_MASK; pmd_val(pmd) |= massage_pgprot_pmd(newprot); + if (young) + pmd = pmd_mkyoung(pmd); return pmd; } @@ -1349,14 +1430,14 @@ static inline pmd_t mk_pmd_phys(unsigned long physpage, pgprot_t pgprot) { pmd_t __pmd; pmd_val(__pmd) = physpage + massage_pgprot_pmd(pgprot); - return __pmd; + return pmd_mkyoung(__pmd); } static inline pmd_t pmd_mkwrite(pmd_t pmd) { - /* Do not clobber _HPAGE_TYPE_NONE pages! */ - if (!(pmd_val(pmd) & _SEGMENT_ENTRY_INV)) - pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO; + /* Do not clobber PROT_NONE segments! */ + if (!pmd_prot_none(pmd)) + pmd_val(pmd) &= ~_SEGMENT_ENTRY_PROTECT; return pmd; } #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLB_PAGE */ @@ -1378,7 +1459,7 @@ static inline int pmd_trans_splitting(pmd_t pmd) static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, pmd_t entry) { - if (!(pmd_val(entry) & _SEGMENT_ENTRY_INV) && MACHINE_HAS_EDAT1) + if (!(pmd_val(entry) & _SEGMENT_ENTRY_INVALID) && MACHINE_HAS_EDAT1) pmd_val(entry) |= _SEGMENT_ENTRY_CO; *pmdp = entry; } @@ -1391,7 +1472,9 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd) static inline pmd_t pmd_wrprotect(pmd_t pmd) { - pmd_val(pmd) |= _SEGMENT_ENTRY_RO; + /* Do not clobber PROT_NONE segments! */ + if (!pmd_prot_none(pmd)) + pmd_val(pmd) |= _SEGMENT_ENTRY_PROTECT; return pmd; } @@ -1401,50 +1484,16 @@ static inline pmd_t pmd_mkdirty(pmd_t pmd) return pmd; } -static inline pmd_t pmd_mkold(pmd_t pmd) -{ - /* No referenced bit in the segment table entry. */ - return pmd; -} - -static inline pmd_t pmd_mkyoung(pmd_t pmd) -{ - /* No referenced bit in the segment table entry. */ - return pmd; -} - #define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp) { - unsigned long pmd_addr = pmd_val(*pmdp) & HPAGE_MASK; - long tmp, rc; - int counter; + pmd_t pmd; - rc = 0; - if (MACHINE_HAS_RRBM) { - counter = PTRS_PER_PTE >> 6; - asm volatile( - "0: .insn rre,0xb9ae0000,%0,%3\n" /* rrbm */ - " ogr %1,%0\n" - " la %3,0(%4,%3)\n" - " brct %2,0b\n" - : "=&d" (tmp), "+&d" (rc), "+d" (counter), - "+a" (pmd_addr) - : "a" (64 * 4096UL) : "cc"); - rc = !!rc; - } else { - counter = PTRS_PER_PTE; - asm volatile( - "0: rrbe 0,%2\n" - " la %2,0(%3,%2)\n" - " brc 12,1f\n" - " lhi %0,1\n" - "1: brct %1,0b\n" - : "+d" (rc), "+d" (counter), "+a" (pmd_addr) - : "a" (4096UL) : "cc"); - } - return rc; + pmd = *pmdp; + __pmd_idte(address, pmdp); + *pmdp = pmd_mkold(pmd); + return pmd_young(pmd); } #define __HAVE_ARCH_PMDP_GET_AND_CLEAR @@ -1510,10 +1559,8 @@ static inline unsigned long pmd_pfn(pmd_t pmd) * exception will occur instead of a page translation exception. The * specifiation exception has the bad habit not to store necessary * information in the lowcore. - * Bit 21 and bit 22 are the page invalid bit and the page protection - * bit. We set both to indicate a swapped page. - * Bit 30 and 31 are used to distinguish the different page types. For - * a swapped page these bits need to be zero. + * Bits 21, 22, 30 and 31 are used to indicate the page type. + * A swap pte is indicated by bit pattern (pte & 0x603) == 0x402 * This leaves the bits 1-19 and bits 24-29 to store type and offset. * We use the 5 bits from 25-29 for the type and the 20 bits from 1-19 * plus 24 for the offset. @@ -1527,10 +1574,8 @@ static inline unsigned long pmd_pfn(pmd_t pmd) * exception will occur instead of a page translation exception. The * specifiation exception has the bad habit not to store necessary * information in the lowcore. - * Bit 53 and bit 54 are the page invalid bit and the page protection - * bit. We set both to indicate a swapped page. - * Bit 62 and 63 are used to distinguish the different page types. For - * a swapped page these bits need to be zero. + * Bits 53, 54, 62 and 63 are used to indicate the page type. + * A swap pte is indicated by bit pattern (pte & 0x603) == 0x402 * This leaves the bits 0-51 and bits 56-61 to store type and offset. * We use the 5 bits from 57-61 for the type and the 53 bits from 0-51 * plus 56 for the offset. @@ -1547,7 +1592,7 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) { pte_t pte; offset &= __SWP_OFFSET_MASK; - pte_val(pte) = _PAGE_TYPE_SWAP | ((type & 0x1f) << 2) | + pte_val(pte) = _PAGE_INVALID | _PAGE_TYPE | ((type & 0x1f) << 2) | ((offset & 1UL) << 7) | ((offset & ~1UL) << 11); return pte; } @@ -1570,7 +1615,7 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) #define pgoff_to_pte(__off) \ ((pte_t) { ((((__off) & 0x7f) << 1) + (((__off) >> 7) << 12)) \ - | _PAGE_TYPE_FILE }) + | _PAGE_INVALID | _PAGE_PROTECT }) #endif /* !__ASSEMBLY__ */ diff --git a/arch/s390/include/asm/serial.h b/arch/s390/include/asm/serial.h new file mode 100644 index 000000000000..5b3e48ef534b --- /dev/null +++ b/arch/s390/include/asm/serial.h @@ -0,0 +1,6 @@ +#ifndef _ASM_S390_SERIAL_H +#define _ASM_S390_SERIAL_H + +#define BASE_BAUD 0 + +#endif /* _ASM_S390_SERIAL_H */ diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h index 80b6f11263c4..6dbd559763c9 100644 --- a/arch/s390/include/asm/switch_to.h +++ b/arch/s390/include/asm/switch_to.h @@ -8,6 +8,7 @@ #define __ASM_SWITCH_TO_H #include <linux/thread_info.h> +#include <asm/ptrace.h> extern struct task_struct *__switch_to(void *, void *); extern void update_cr_regs(struct task_struct *task); @@ -68,12 +69,16 @@ static inline void restore_fp_regs(s390_fp_regs *fpregs) static inline void save_access_regs(unsigned int *acrs) { - asm volatile("stam 0,15,%0" : "=Q" (*acrs)); + typedef struct { int _[NUM_ACRS]; } acrstype; + + asm volatile("stam 0,15,%0" : "=Q" (*(acrstype *)acrs)); } static inline void restore_access_regs(unsigned int *acrs) { - asm volatile("lam 0,15,%0" : : "Q" (*acrs)); + typedef struct { int _[NUM_ACRS]; } acrstype; + + asm volatile("lam 0,15,%0" : : "Q" (*(acrstype *)acrs)); } #define switch_to(prev,next,last) do { \ diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index 6d6d92b4ea11..2cb846c4b37f 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -63,13 +63,14 @@ static inline void tlb_gather_mmu(struct mmu_gather *tlb, static inline void tlb_flush_mmu(struct mmu_gather *tlb) { + __tlb_flush_mm_lazy(tlb->mm); tlb_table_flush(tlb); } static inline void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) { - tlb_table_flush(tlb); + tlb_flush_mmu(tlb); } /* diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h index 6b32af30878c..f9fef0425fee 100644 --- a/arch/s390/include/asm/tlbflush.h +++ b/arch/s390/include/asm/tlbflush.h @@ -86,7 +86,7 @@ static inline void __tlb_flush_mm(struct mm_struct * mm) __tlb_flush_full(mm); } -static inline void __tlb_flush_mm_cond(struct mm_struct * mm) +static inline void __tlb_flush_mm_lazy(struct mm_struct * mm) { if (mm->context.flush_mm) { __tlb_flush_mm(mm); @@ -118,13 +118,13 @@ static inline void __tlb_flush_mm_cond(struct mm_struct * mm) static inline void flush_tlb_mm(struct mm_struct *mm) { - __tlb_flush_mm_cond(mm); + __tlb_flush_mm_lazy(mm); } static inline void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - __tlb_flush_mm_cond(vma->vm_mm); + __tlb_flush_mm_lazy(vma->vm_mm); } static inline void flush_tlb_kernel_range(unsigned long start, diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index be7a408be7a1..cc30d1fb000c 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -18,6 +18,7 @@ #include <asm/unistd.h> #include <asm/page.h> #include <asm/sigp.h> +#include <asm/irq.h> __PT_R0 = __PT_GPRS __PT_R1 = __PT_GPRS + 4 @@ -435,6 +436,11 @@ io_skip: io_loop: l %r1,BASED(.Ldo_IRQ) lr %r2,%r11 # pass pointer to pt_regs + lhi %r3,IO_INTERRUPT + tm __PT_INT_CODE+8(%r11),0x80 # adapter interrupt ? + jz io_call + lhi %r3,THIN_INTERRUPT +io_call: basr %r14,%r1 # call do_IRQ tm __LC_MACHINE_FLAGS+2,0x10 # MACHINE_FLAG_LPAR jz io_return @@ -584,9 +590,10 @@ ext_skip: mvc __PT_INT_CODE(4,%r11),__LC_EXT_CPU_ADDR mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS TRACE_IRQS_OFF + l %r1,BASED(.Ldo_IRQ) lr %r2,%r11 # pass pointer to pt_regs - l %r1,BASED(.Ldo_extint) - basr %r14,%r1 # call do_extint + lhi %r3,EXT_INTERRUPT + basr %r14,%r1 # call do_IRQ j io_return /* @@ -879,13 +886,13 @@ cleanup_idle: stm %r9,%r10,__LC_SYSTEM_TIMER mvc __LC_LAST_UPDATE_TIMER(8),__TIMER_IDLE_EXIT(%r2) # prepare return psw - n %r8,BASED(cleanup_idle_wait) # clear wait state bit + n %r8,BASED(cleanup_idle_wait) # clear irq & wait state bits l %r9,24(%r11) # return from psw_idle br %r14 cleanup_idle_insn: .long psw_idle_lpsw + 0x80000000 cleanup_idle_wait: - .long 0xfffdffff + .long 0xfcfdffff /* * Integer constants @@ -902,7 +909,6 @@ cleanup_idle_wait: .Ldo_machine_check: .long s390_do_machine_check .Lhandle_mcck: .long s390_handle_mcck .Ldo_IRQ: .long do_IRQ -.Ldo_extint: .long do_extint .Ldo_signal: .long do_signal .Ldo_notify_resume: .long do_notify_resume .Ldo_per_trap: .long do_per_trap diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 1c039d0c24c7..2b2188b97c6a 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -19,6 +19,7 @@ #include <asm/unistd.h> #include <asm/page.h> #include <asm/sigp.h> +#include <asm/irq.h> __PT_R0 = __PT_GPRS __PT_R1 = __PT_GPRS + 8 @@ -468,6 +469,11 @@ io_skip: xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) io_loop: lgr %r2,%r11 # pass pointer to pt_regs + lghi %r3,IO_INTERRUPT + tm __PT_INT_CODE+8(%r11),0x80 # adapter interrupt ? + jz io_call + lghi %r3,THIN_INTERRUPT +io_call: brasl %r14,do_IRQ tm __LC_MACHINE_FLAGS+6,0x10 # MACHINE_FLAG_LPAR jz io_return @@ -623,7 +629,8 @@ ext_skip: TRACE_IRQS_OFF xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) lgr %r2,%r11 # pass pointer to pt_regs - brasl %r14,do_extint + lghi %r3,EXT_INTERRUPT + brasl %r14,do_IRQ j io_return /* @@ -922,7 +929,7 @@ cleanup_idle: stg %r9,__LC_SYSTEM_TIMER mvc __LC_LAST_UPDATE_TIMER(8),__TIMER_IDLE_EXIT(%r2) # prepare return psw - nihh %r8,0xfffd # clear wait state bit + nihh %r8,0xfcfd # clear irq & wait state bits lg %r9,48(%r11) # return from psw_idle br %r14 cleanup_idle_insn: diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 54b0995514e8..b34ba0ea96a9 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -22,6 +22,7 @@ #include <asm/cputime.h> #include <asm/lowcore.h> #include <asm/irq.h> +#include <asm/hw_irq.h> #include "entry.h" DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); @@ -42,9 +43,10 @@ struct irq_class { * Since the external and I/O interrupt fields are already sums we would end * up with having a sum which accounts each interrupt twice. */ -static const struct irq_class irqclass_main_desc[NR_IRQS] = { - [EXTERNAL_INTERRUPT] = {.name = "EXT"}, - [IO_INTERRUPT] = {.name = "I/O"} +static const struct irq_class irqclass_main_desc[NR_IRQS_BASE] = { + [EXT_INTERRUPT] = {.name = "EXT"}, + [IO_INTERRUPT] = {.name = "I/O"}, + [THIN_INTERRUPT] = {.name = "AIO"}, }; /* @@ -86,6 +88,28 @@ static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = { [CPU_RST] = {.name = "RST", .desc = "[CPU] CPU Restart"}, }; +void __init init_IRQ(void) +{ + irq_reserve_irqs(0, THIN_INTERRUPT); + init_cio_interrupts(); + init_airq_interrupts(); + init_ext_interrupts(); +} + +void do_IRQ(struct pt_regs *regs, int irq) +{ + struct pt_regs *old_regs; + + old_regs = set_irq_regs(regs); + irq_enter(); + if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) + /* Serve timer interrupts first. */ + clock_comparator_work(); + generic_handle_irq(irq); + irq_exit(); + set_irq_regs(old_regs); +} + /* * show_interrupts is needed by /proc/interrupts. */ @@ -100,27 +124,36 @@ int show_interrupts(struct seq_file *p, void *v) for_each_online_cpu(cpu) seq_printf(p, "CPU%d ", cpu); seq_putc(p, '\n'); + goto out; } if (irq < NR_IRQS) { + if (irq >= NR_IRQS_BASE) + goto out; seq_printf(p, "%s: ", irqclass_main_desc[irq].name); for_each_online_cpu(cpu) - seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[irq]); + seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu)); seq_putc(p, '\n'); - goto skip_arch_irqs; + goto out; } for (irq = 0; irq < NR_ARCH_IRQS; irq++) { seq_printf(p, "%s: ", irqclass_sub_desc[irq].name); for_each_online_cpu(cpu) - seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).irqs[irq]); + seq_printf(p, "%10u ", + per_cpu(irq_stat, cpu).irqs[irq]); if (irqclass_sub_desc[irq].desc) seq_printf(p, " %s", irqclass_sub_desc[irq].desc); seq_putc(p, '\n'); } -skip_arch_irqs: +out: put_online_cpus(); return 0; } +int arch_show_interrupts(struct seq_file *p, int prec) +{ + return 0; +} + /* * Switch to the asynchronous interrupt stack for softirq execution. */ @@ -159,14 +192,6 @@ asmlinkage void do_softirq(void) local_irq_restore(flags); } -#ifdef CONFIG_PROC_FS -void init_irq_proc(void) -{ - if (proc_mkdir("irq", NULL)) - create_prof_cpu_mask(); -} -#endif - /* * ext_int_hash[index] is the list head for all external interrupts that hash * to this index. @@ -183,14 +208,6 @@ struct ext_int_info { /* ext_int_hash_lock protects the handler lists for external interrupts */ DEFINE_SPINLOCK(ext_int_hash_lock); -static void __init init_external_interrupts(void) -{ - int idx; - - for (idx = 0; idx < ARRAY_SIZE(ext_int_hash); idx++) - INIT_LIST_HEAD(&ext_int_hash[idx]); -} - static inline int ext_hash(u16 code) { return (code + (code >> 9)) & 0xff; @@ -234,20 +251,13 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler) } EXPORT_SYMBOL(unregister_external_interrupt); -void __irq_entry do_extint(struct pt_regs *regs) +static irqreturn_t do_ext_interrupt(int irq, void *dummy) { + struct pt_regs *regs = get_irq_regs(); struct ext_code ext_code; - struct pt_regs *old_regs; struct ext_int_info *p; int index; - old_regs = set_irq_regs(regs); - irq_enter(); - if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) { - /* Serve timer interrupts first. */ - clock_comparator_work(); - } - kstat_incr_irqs_this_cpu(EXTERNAL_INTERRUPT, NULL); ext_code = *(struct ext_code *) ®s->int_code; if (ext_code.code != 0x1004) __get_cpu_var(s390_idle).nohz_delay = 1; @@ -259,13 +269,25 @@ void __irq_entry do_extint(struct pt_regs *regs) p->handler(ext_code, regs->int_parm, regs->int_parm_long); rcu_read_unlock(); - irq_exit(); - set_irq_regs(old_regs); + + return IRQ_HANDLED; } -void __init init_IRQ(void) +static struct irqaction external_interrupt = { + .name = "EXT", + .handler = do_ext_interrupt, +}; + +void __init init_ext_interrupts(void) { - init_external_interrupts(); + int idx; + + for (idx = 0; idx < ARRAY_SIZE(ext_int_hash); idx++) + INIT_LIST_HEAD(&ext_int_hash[idx]); + + irq_set_chip_and_handler(EXT_INTERRUPT, + &dummy_irq_chip, handle_percpu_irq); + setup_irq(EXT_INTERRUPT, &external_interrupt); } static DEFINE_SPINLOCK(sc_irq_lock); @@ -313,69 +335,3 @@ void measurement_alert_subclass_unregister(void) spin_unlock(&ma_subclass_lock); } EXPORT_SYMBOL(measurement_alert_subclass_unregister); - -#ifdef CONFIG_SMP -void synchronize_irq(unsigned int irq) -{ - /* - * Not needed, the handler is protected by a lock and IRQs that occur - * after the handler is deleted are just NOPs. - */ -} -EXPORT_SYMBOL_GPL(synchronize_irq); -#endif - -#ifndef CONFIG_PCI - -/* Only PCI devices have dynamically-defined IRQ handlers */ - -int request_irq(unsigned int irq, irq_handler_t handler, - unsigned long irqflags, const char *devname, void *dev_id) -{ - return -EINVAL; -} -EXPORT_SYMBOL_GPL(request_irq); - -void free_irq(unsigned int irq, void *dev_id) -{ - WARN_ON(1); -} -EXPORT_SYMBOL_GPL(free_irq); - -void enable_irq(unsigned int irq) -{ - WARN_ON(1); -} -EXPORT_SYMBOL_GPL(enable_irq); - -void disable_irq(unsigned int irq) -{ - WARN_ON(1); -} -EXPORT_SYMBOL_GPL(disable_irq); - -#endif /* !CONFIG_PCI */ - -void disable_irq_nosync(unsigned int irq) -{ - disable_irq(irq); -} -EXPORT_SYMBOL_GPL(disable_irq_nosync); - -unsigned long probe_irq_on(void) -{ - return 0; -} -EXPORT_SYMBOL_GPL(probe_irq_on); - -int probe_irq_off(unsigned long val) -{ - return 0; -} -EXPORT_SYMBOL_GPL(probe_irq_off); - -unsigned int probe_irq_mask(unsigned long val) -{ - return val; -} -EXPORT_SYMBOL_GPL(probe_irq_mask); diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c index 3388b2b2a07d..adbbe7f1cb0d 100644 --- a/arch/s390/kernel/kprobes.c +++ b/arch/s390/kernel/kprobes.c @@ -105,14 +105,31 @@ static int __kprobes get_fixup_type(kprobe_opcode_t *insn) fixup |= FIXUP_RETURN_REGISTER; break; case 0xeb: - if ((insn[2] & 0xff) == 0x44 || /* bxhg */ - (insn[2] & 0xff) == 0x45) /* bxleg */ + switch (insn[2] & 0xff) { + case 0x44: /* bxhg */ + case 0x45: /* bxleg */ fixup = FIXUP_BRANCH_NOT_TAKEN; + break; + } break; case 0xe3: /* bctg */ if ((insn[2] & 0xff) == 0x46) fixup = FIXUP_BRANCH_NOT_TAKEN; break; + case 0xec: + switch (insn[2] & 0xff) { + case 0xe5: /* clgrb */ + case 0xe6: /* cgrb */ + case 0xf6: /* crb */ + case 0xf7: /* clrb */ + case 0xfc: /* cgib */ + case 0xfd: /* cglib */ + case 0xfe: /* cib */ + case 0xff: /* clib */ + fixup = FIXUP_BRANCH_NOT_TAKEN; + break; + } + break; } return fixup; } diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c index 504175ebf8b0..c4c033819879 100644 --- a/arch/s390/kernel/nmi.c +++ b/arch/s390/kernel/nmi.c @@ -214,10 +214,7 @@ static int notrace s390_revalidate_registers(struct mci *mci) : "0", "cc"); #endif /* Revalidate clock comparator register */ - if (S390_lowcore.clock_comparator == -1) - set_clock_comparator(S390_lowcore.mcck_clock); - else - set_clock_comparator(S390_lowcore.clock_comparator); + set_clock_comparator(S390_lowcore.clock_comparator); /* Check if old PSW is valid */ if (!mci->wp) /* diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 2bc3eddae34a..c5dbb335716d 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -71,6 +71,7 @@ void arch_cpu_idle(void) } /* Halt the cpu and keep track of cpu time accounting. */ vtime_stop_cpu(); + local_irq_enable(); } void arch_cpu_idle_exit(void) diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index e9fadb04e3c6..9556905bd3ce 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -60,11 +60,11 @@ void update_cr_regs(struct task_struct *task) __ctl_store(cr, 0, 2); cr_new[1] = cr[1]; - /* Set or clear transaction execution TXC/PIFO bits 8 and 9. */ + /* Set or clear transaction execution TXC bit 8. */ if (task->thread.per_flags & PER_FLAG_NO_TE) - cr_new[0] = cr[0] & ~(3UL << 54); + cr_new[0] = cr[0] & ~(1UL << 55); else - cr_new[0] = cr[0] | (3UL << 54); + cr_new[0] = cr[0] | (1UL << 55); /* Set or clear transaction execution TDC bits 62 and 63. */ cr_new[2] = cr[2] & ~3UL; if (task->thread.per_flags & PER_FLAG_TE_ABORT_RAND) { @@ -1299,7 +1299,7 @@ int regs_query_register_offset(const char *name) if (!name || *name != 'r') return -EINVAL; - if (strict_strtoul(name + 1, 10, &offset)) + if (kstrtoul(name + 1, 10, &offset)) return -EINVAL; if (offset >= NUM_GPRS) return -EINVAL; diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c index c479d2f9605b..737bff38e3ee 100644 --- a/arch/s390/kernel/suspend.c +++ b/arch/s390/kernel/suspend.c @@ -10,6 +10,9 @@ #include <linux/suspend.h> #include <linux/mm.h> #include <asm/ctl_reg.h> +#include <asm/ipl.h> +#include <asm/cio.h> +#include <asm/pci.h> /* * References to section boundaries @@ -211,3 +214,11 @@ void restore_processor_state(void) __ctl_set_bit(0,28); local_mcck_enable(); } + +/* Called at the end of swsusp_arch_resume */ +void s390_early_resume(void) +{ + lgr_info_log(); + channel_subsystem_reinit(); + zpci_rescan(); +} diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S index c487be4cfc81..6b09fdffbd2f 100644 --- a/arch/s390/kernel/swsusp_asm64.S +++ b/arch/s390/kernel/swsusp_asm64.S @@ -281,11 +281,8 @@ restore_registers: lghi %r2,0 brasl %r14,arch_set_page_states - /* Log potential guest relocation */ - brasl %r14,lgr_info_log - - /* Reinitialize the channel subsystem */ - brasl %r14,channel_subsystem_reinit + /* Call arch specific early resume code */ + brasl %r14,s390_early_resume /* Return 0 */ lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15) diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 876546b9cfa1..064c3082ab33 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -92,7 +92,6 @@ void clock_comparator_work(void) struct clock_event_device *cd; S390_lowcore.clock_comparator = -1ULL; - set_clock_comparator(S390_lowcore.clock_comparator); cd = &__get_cpu_var(comparators); cd->event_handler(cd); } diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index d7776281cb60..05d75c413137 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -63,7 +63,7 @@ static int __init vdso_setup(char *s) else if (strncmp(s, "off", 4) == 0) vdso_enabled = 0; else { - rc = strict_strtoul(s, 0, &val); + rc = kstrtoul(s, 0, &val); vdso_enabled = rc ? 0 : !!val; } return !rc; @@ -113,11 +113,11 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore) clear_table((unsigned long *) segment_table, _SEGMENT_ENTRY_EMPTY, PAGE_SIZE << SEGMENT_ORDER); - clear_table((unsigned long *) page_table, _PAGE_TYPE_EMPTY, + clear_table((unsigned long *) page_table, _PAGE_INVALID, 256*sizeof(unsigned long)); *(unsigned long *) segment_table = _SEGMENT_ENTRY + page_table; - *(unsigned long *) page_table = _PAGE_RO + page_frame; + *(unsigned long *) page_table = _PAGE_PROTECT + page_frame; psal = (u32 *) (page_table + 256*sizeof(unsigned long)); aste = psal + 32; diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c index c61b9fad43cc..57c87d7d7ede 100644 --- a/arch/s390/lib/delay.c +++ b/arch/s390/lib/delay.c @@ -44,7 +44,6 @@ static void __udelay_disabled(unsigned long long usecs) do { set_clock_comparator(end); vtime_stop_cpu(); - local_irq_disable(); } while (get_tod_clock() < end); lockdep_on(); __ctl_load(cr0, 0, 0); @@ -64,7 +63,6 @@ static void __udelay_enabled(unsigned long long usecs) set_clock_comparator(end); } vtime_stop_cpu(); - local_irq_disable(); if (clock_saved) local_tick_enable(clock_saved); } while (get_tod_clock() < end); diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 50ea137a2d3c..1694d738b175 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -86,28 +86,28 @@ static unsigned long follow_table(struct mm_struct *mm, switch (mm->context.asce_bits & _ASCE_TYPE_MASK) { case _ASCE_TYPE_REGION1: table = table + ((address >> 53) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) + if (unlikely(*table & _REGION_ENTRY_INVALID)) return -0x39UL; table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); /* fallthrough */ case _ASCE_TYPE_REGION2: table = table + ((address >> 42) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) + if (unlikely(*table & _REGION_ENTRY_INVALID)) return -0x3aUL; table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); /* fallthrough */ case _ASCE_TYPE_REGION3: table = table + ((address >> 31) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) + if (unlikely(*table & _REGION_ENTRY_INVALID)) return -0x3bUL; table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); /* fallthrough */ case _ASCE_TYPE_SEGMENT: table = table + ((address >> 20) & 0x7ff); - if (unlikely(*table & _SEGMENT_ENTRY_INV)) + if (unlikely(*table & _SEGMENT_ENTRY_INVALID)) return -0x10UL; if (unlikely(*table & _SEGMENT_ENTRY_LARGE)) { - if (write && (*table & _SEGMENT_ENTRY_RO)) + if (write && (*table & _SEGMENT_ENTRY_PROTECT)) return -0x04UL; return (*table & _SEGMENT_ENTRY_ORIGIN_LARGE) + (address & ~_SEGMENT_ENTRY_ORIGIN_LARGE); @@ -117,7 +117,7 @@ static unsigned long follow_table(struct mm_struct *mm, table = table + ((address >> 12) & 0xff); if (unlikely(*table & _PAGE_INVALID)) return -0x11UL; - if (write && (*table & _PAGE_RO)) + if (write && (*table & _PAGE_PROTECT)) return -0x04UL; return (*table & PAGE_MASK) + (address & ~PAGE_MASK); } @@ -130,13 +130,13 @@ static unsigned long follow_table(struct mm_struct *mm, unsigned long *table = (unsigned long *)__pa(mm->pgd); table = table + ((address >> 20) & 0x7ff); - if (unlikely(*table & _SEGMENT_ENTRY_INV)) + if (unlikely(*table & _SEGMENT_ENTRY_INVALID)) return -0x10UL; table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN); table = table + ((address >> 12) & 0xff); if (unlikely(*table & _PAGE_INVALID)) return -0x11UL; - if (write && (*table & _PAGE_RO)) + if (write && (*table & _PAGE_PROTECT)) return -0x04UL; return (*table & PAGE_MASK) + (address & ~PAGE_MASK); } diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c index 3ad65b04ac15..46d517c3c763 100644 --- a/arch/s390/mm/dump_pagetables.c +++ b/arch/s390/mm/dump_pagetables.c @@ -53,7 +53,7 @@ static void print_prot(struct seq_file *m, unsigned int pr, int level) seq_printf(m, "I\n"); return; } - seq_printf(m, "%s", pr & _PAGE_RO ? "RO " : "RW "); + seq_printf(m, "%s", pr & _PAGE_PROTECT ? "RO " : "RW "); seq_printf(m, "%s", pr & _PAGE_CO ? "CO " : " "); seq_putc(m, '\n'); } @@ -105,12 +105,12 @@ static void note_page(struct seq_file *m, struct pg_state *st, } /* - * The actual page table walker functions. In order to keep the implementation - * of print_prot() short, we only check and pass _PAGE_INVALID and _PAGE_RO - * flags to note_page() if a region, segment or page table entry is invalid or - * read-only. - * After all it's just a hint that the current level being walked contains an - * invalid or read-only entry. + * The actual page table walker functions. In order to keep the + * implementation of print_prot() short, we only check and pass + * _PAGE_INVALID and _PAGE_PROTECT flags to note_page() if a region, + * segment or page table entry is invalid or read-only. + * After all it's just a hint that the current level being walked + * contains an invalid or read-only entry. */ static void walk_pte_level(struct seq_file *m, struct pg_state *st, pmd_t *pmd, unsigned long addr) @@ -122,14 +122,14 @@ static void walk_pte_level(struct seq_file *m, struct pg_state *st, for (i = 0; i < PTRS_PER_PTE && addr < max_addr; i++) { st->current_address = addr; pte = pte_offset_kernel(pmd, addr); - prot = pte_val(*pte) & (_PAGE_RO | _PAGE_INVALID); + prot = pte_val(*pte) & (_PAGE_PROTECT | _PAGE_INVALID); note_page(m, st, prot, 4); addr += PAGE_SIZE; } } #ifdef CONFIG_64BIT -#define _PMD_PROT_MASK (_SEGMENT_ENTRY_RO | _SEGMENT_ENTRY_CO) +#define _PMD_PROT_MASK (_SEGMENT_ENTRY_PROTECT | _SEGMENT_ENTRY_CO) #else #define _PMD_PROT_MASK 0 #endif diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index 1f5315d1215c..5d758db27bdc 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -24,7 +24,7 @@ static inline int gup_pte_range(pmd_t *pmdp, pmd_t pmd, unsigned long addr, pte_t *ptep, pte; struct page *page; - mask = (write ? _PAGE_RO : 0) | _PAGE_INVALID | _PAGE_SPECIAL; + mask = (write ? _PAGE_PROTECT : 0) | _PAGE_INVALID | _PAGE_SPECIAL; ptep = ((pte_t *) pmd_deref(pmd)) + pte_index(addr); do { @@ -55,8 +55,8 @@ static inline int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr, struct page *head, *page, *tail; int refs; - result = write ? 0 : _SEGMENT_ENTRY_RO; - mask = result | _SEGMENT_ENTRY_INV; + result = write ? 0 : _SEGMENT_ENTRY_PROTECT; + mask = result | _SEGMENT_ENTRY_INVALID; if ((pmd_val(pmd) & mask) != result) return 0; VM_BUG_ON(!pfn_valid(pmd_val(pmd) >> PAGE_SHIFT)); diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c index 121089d57802..248445f92604 100644 --- a/arch/s390/mm/hugetlbpage.c +++ b/arch/s390/mm/hugetlbpage.c @@ -8,21 +8,127 @@ #include <linux/mm.h> #include <linux/hugetlb.h> +static inline pmd_t __pte_to_pmd(pte_t pte) +{ + int none, young, prot; + pmd_t pmd; + + /* + * Convert encoding pte bits pmd bits + * .IR...wrdytp ..R...I...y. + * empty .10...000000 -> ..0...1...0. + * prot-none, clean, old .11...000001 -> ..0...1...1. + * prot-none, clean, young .11...000101 -> ..1...1...1. + * prot-none, dirty, old .10...001001 -> ..0...1...1. + * prot-none, dirty, young .10...001101 -> ..1...1...1. + * read-only, clean, old .11...010001 -> ..1...1...0. + * read-only, clean, young .01...010101 -> ..1...0...1. + * read-only, dirty, old .11...011001 -> ..1...1...0. + * read-only, dirty, young .01...011101 -> ..1...0...1. + * read-write, clean, old .11...110001 -> ..0...1...0. + * read-write, clean, young .01...110101 -> ..0...0...1. + * read-write, dirty, old .10...111001 -> ..0...1...0. + * read-write, dirty, young .00...111101 -> ..0...0...1. + * Huge ptes are dirty by definition, a clean pte is made dirty + * by the conversion. + */ + if (pte_present(pte)) { + pmd_val(pmd) = pte_val(pte) & PAGE_MASK; + if (pte_val(pte) & _PAGE_INVALID) + pmd_val(pmd) |= _SEGMENT_ENTRY_INVALID; + none = (pte_val(pte) & _PAGE_PRESENT) && + !(pte_val(pte) & _PAGE_READ) && + !(pte_val(pte) & _PAGE_WRITE); + prot = (pte_val(pte) & _PAGE_PROTECT) && + !(pte_val(pte) & _PAGE_WRITE); + young = pte_val(pte) & _PAGE_YOUNG; + if (none || young) + pmd_val(pmd) |= _SEGMENT_ENTRY_YOUNG; + if (prot || (none && young)) + pmd_val(pmd) |= _SEGMENT_ENTRY_PROTECT; + } else + pmd_val(pmd) = _SEGMENT_ENTRY_INVALID; + return pmd; +} + +static inline pte_t __pmd_to_pte(pmd_t pmd) +{ + pte_t pte; + + /* + * Convert encoding pmd bits pte bits + * ..R...I...y. .IR...wrdytp + * empty ..0...1...0. -> .10...000000 + * prot-none, old ..0...1...1. -> .10...001001 + * prot-none, young ..1...1...1. -> .10...001101 + * read-only, old ..1...1...0. -> .11...011001 + * read-only, young ..1...0...1. -> .01...011101 + * read-write, old ..0...1...0. -> .10...111001 + * read-write, young ..0...0...1. -> .00...111101 + * Huge ptes are dirty by definition + */ + if (pmd_present(pmd)) { + pte_val(pte) = _PAGE_PRESENT | _PAGE_LARGE | _PAGE_DIRTY | + (pmd_val(pmd) & PAGE_MASK); + if (pmd_val(pmd) & _SEGMENT_ENTRY_INVALID) + pte_val(pte) |= _PAGE_INVALID; + if (pmd_prot_none(pmd)) { + if (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT) + pte_val(pte) |= _PAGE_YOUNG; + } else { + pte_val(pte) |= _PAGE_READ; + if (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT) + pte_val(pte) |= _PAGE_PROTECT; + else + pte_val(pte) |= _PAGE_WRITE; + if (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) + pte_val(pte) |= _PAGE_YOUNG; + } + } else + pte_val(pte) = _PAGE_INVALID; + return pte; +} void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *pteptr, pte_t pteval) + pte_t *ptep, pte_t pte) { - pmd_t *pmdp = (pmd_t *) pteptr; - unsigned long mask; + pmd_t pmd; + pmd = __pte_to_pmd(pte); if (!MACHINE_HAS_HPAGE) { - pteptr = (pte_t *) pte_page(pteval)[1].index; - mask = pte_val(pteval) & - (_SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO); - pte_val(pteval) = (_SEGMENT_ENTRY + __pa(pteptr)) | mask; + pmd_val(pmd) &= ~_SEGMENT_ENTRY_ORIGIN; + pmd_val(pmd) |= pte_page(pte)[1].index; + } else + pmd_val(pmd) |= _SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO; + *(pmd_t *) ptep = pmd; +} + +pte_t huge_ptep_get(pte_t *ptep) +{ + unsigned long origin; + pmd_t pmd; + + pmd = *(pmd_t *) ptep; + if (!MACHINE_HAS_HPAGE && pmd_present(pmd)) { + origin = pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN; + pmd_val(pmd) &= ~_SEGMENT_ENTRY_ORIGIN; + pmd_val(pmd) |= *(unsigned long *) origin; } + return __pmd_to_pte(pmd); +} - pmd_val(*pmdp) = pte_val(pteval); +pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + pmd_t *pmdp = (pmd_t *) ptep; + pte_t pte = huge_ptep_get(ptep); + + if (MACHINE_HAS_IDTE) + __pmd_idte(addr, pmdp); + else + __pmd_csp(pmdp); + pmd_val(*pmdp) = _SEGMENT_ENTRY_EMPTY; + return pte; } int arch_prepare_hugepage(struct page *page) @@ -58,7 +164,7 @@ void arch_release_hugepage(struct page *page) ptep = (pte_t *) page[1].index; if (!ptep) return; - clear_table((unsigned long *) ptep, _PAGE_TYPE_EMPTY, + clear_table((unsigned long *) ptep, _PAGE_INVALID, PTRS_PER_PTE * sizeof(pte_t)); page_table_free(&init_mm, (unsigned long *) ptep); page[1].index = 0; diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index 80adfbf75065..990397420e6b 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -118,7 +118,7 @@ void kernel_map_pages(struct page *page, int numpages, int enable) pte = pte_offset_kernel(pmd, address); if (!enable) { __ptep_ipte(address, pte); - pte_val(*pte) = _PAGE_TYPE_EMPTY; + pte_val(*pte) = _PAGE_INVALID; continue; } pte_val(*pte) = __pa(address); diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index a8154a1a2c94..6d16132d0850 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -161,7 +161,7 @@ static int gmap_unlink_segment(struct gmap *gmap, unsigned long *table) struct gmap_rmap *rmap; struct page *page; - if (*table & _SEGMENT_ENTRY_INV) + if (*table & _SEGMENT_ENTRY_INVALID) return 0; page = pfn_to_page(*table >> PAGE_SHIFT); mp = (struct gmap_pgtable *) page->index; @@ -172,7 +172,7 @@ static int gmap_unlink_segment(struct gmap *gmap, unsigned long *table) kfree(rmap); break; } - *table = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO | mp->vmaddr; + *table = mp->vmaddr | _SEGMENT_ENTRY_INVALID | _SEGMENT_ENTRY_PROTECT; return 1; } @@ -258,7 +258,7 @@ static int gmap_alloc_table(struct gmap *gmap, return -ENOMEM; new = (unsigned long *) page_to_phys(page); crst_table_init(new, init); - if (*table & _REGION_ENTRY_INV) { + if (*table & _REGION_ENTRY_INVALID) { list_add(&page->lru, &gmap->crst_list); *table = (unsigned long) new | _REGION_ENTRY_LENGTH | (*table & _REGION_ENTRY_TYPE_MASK); @@ -292,22 +292,22 @@ int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len) for (off = 0; off < len; off += PMD_SIZE) { /* Walk the guest addr space page table */ table = gmap->table + (((to + off) >> 53) & 0x7ff); - if (*table & _REGION_ENTRY_INV) + if (*table & _REGION_ENTRY_INVALID) goto out; table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + (((to + off) >> 42) & 0x7ff); - if (*table & _REGION_ENTRY_INV) + if (*table & _REGION_ENTRY_INVALID) goto out; table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + (((to + off) >> 31) & 0x7ff); - if (*table & _REGION_ENTRY_INV) + if (*table & _REGION_ENTRY_INVALID) goto out; table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + (((to + off) >> 20) & 0x7ff); /* Clear segment table entry in guest address space. */ flush |= gmap_unlink_segment(gmap, table); - *table = _SEGMENT_ENTRY_INV; + *table = _SEGMENT_ENTRY_INVALID; } out: spin_unlock(&gmap->mm->page_table_lock); @@ -345,17 +345,17 @@ int gmap_map_segment(struct gmap *gmap, unsigned long from, for (off = 0; off < len; off += PMD_SIZE) { /* Walk the gmap address space page table */ table = gmap->table + (((to + off) >> 53) & 0x7ff); - if ((*table & _REGION_ENTRY_INV) && + if ((*table & _REGION_ENTRY_INVALID) && gmap_alloc_table(gmap, table, _REGION2_ENTRY_EMPTY)) goto out_unmap; table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + (((to + off) >> 42) & 0x7ff); - if ((*table & _REGION_ENTRY_INV) && + if ((*table & _REGION_ENTRY_INVALID) && gmap_alloc_table(gmap, table, _REGION3_ENTRY_EMPTY)) goto out_unmap; table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + (((to + off) >> 31) & 0x7ff); - if ((*table & _REGION_ENTRY_INV) && + if ((*table & _REGION_ENTRY_INVALID) && gmap_alloc_table(gmap, table, _SEGMENT_ENTRY_EMPTY)) goto out_unmap; table = (unsigned long *) (*table & _REGION_ENTRY_ORIGIN); @@ -363,7 +363,8 @@ int gmap_map_segment(struct gmap *gmap, unsigned long from, /* Store 'from' address in an invalid segment table entry. */ flush |= gmap_unlink_segment(gmap, table); - *table = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO | (from + off); + *table = (from + off) | (_SEGMENT_ENTRY_INVALID | + _SEGMENT_ENTRY_PROTECT); } spin_unlock(&gmap->mm->page_table_lock); up_read(&gmap->mm->mmap_sem); @@ -384,15 +385,15 @@ static unsigned long *gmap_table_walk(unsigned long address, struct gmap *gmap) unsigned long *table; table = gmap->table + ((address >> 53) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) + if (unlikely(*table & _REGION_ENTRY_INVALID)) return ERR_PTR(-EFAULT); table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 42) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) + if (unlikely(*table & _REGION_ENTRY_INVALID)) return ERR_PTR(-EFAULT); table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 31) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) + if (unlikely(*table & _REGION_ENTRY_INVALID)) return ERR_PTR(-EFAULT); table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 20) & 0x7ff); @@ -422,11 +423,11 @@ unsigned long __gmap_translate(unsigned long address, struct gmap *gmap) return PTR_ERR(segment_ptr); /* Convert the gmap address to an mm address. */ segment = *segment_ptr; - if (!(segment & _SEGMENT_ENTRY_INV)) { + if (!(segment & _SEGMENT_ENTRY_INVALID)) { page = pfn_to_page(segment >> PAGE_SHIFT); mp = (struct gmap_pgtable *) page->index; return mp->vmaddr | (address & ~PMD_MASK); - } else if (segment & _SEGMENT_ENTRY_RO) { + } else if (segment & _SEGMENT_ENTRY_PROTECT) { vmaddr = segment & _SEGMENT_ENTRY_ORIGIN; return vmaddr | (address & ~PMD_MASK); } @@ -517,8 +518,8 @@ static void gmap_disconnect_pgtable(struct mm_struct *mm, unsigned long *table) page = pfn_to_page(__pa(table) >> PAGE_SHIFT); mp = (struct gmap_pgtable *) page->index; list_for_each_entry_safe(rmap, next, &mp->mapper, list) { - *rmap->entry = - _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO | mp->vmaddr; + *rmap->entry = mp->vmaddr | (_SEGMENT_ENTRY_INVALID | + _SEGMENT_ENTRY_PROTECT); list_del(&rmap->list); kfree(rmap); flush = 1; @@ -545,13 +546,13 @@ unsigned long __gmap_fault(unsigned long address, struct gmap *gmap) /* Convert the gmap address to an mm address. */ while (1) { segment = *segment_ptr; - if (!(segment & _SEGMENT_ENTRY_INV)) { + if (!(segment & _SEGMENT_ENTRY_INVALID)) { /* Page table is present */ page = pfn_to_page(segment >> PAGE_SHIFT); mp = (struct gmap_pgtable *) page->index; return mp->vmaddr | (address & ~PMD_MASK); } - if (!(segment & _SEGMENT_ENTRY_RO)) + if (!(segment & _SEGMENT_ENTRY_PROTECT)) /* Nothing mapped in the gmap address space. */ break; rc = gmap_connect_pgtable(address, segment, segment_ptr, gmap); @@ -586,25 +587,25 @@ void gmap_discard(unsigned long from, unsigned long to, struct gmap *gmap) while (address < to) { /* Walk the gmap address space page table */ table = gmap->table + ((address >> 53) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) { + if (unlikely(*table & _REGION_ENTRY_INVALID)) { address = (address + PMD_SIZE) & PMD_MASK; continue; } table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 42) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) { + if (unlikely(*table & _REGION_ENTRY_INVALID)) { address = (address + PMD_SIZE) & PMD_MASK; continue; } table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 31) & 0x7ff); - if (unlikely(*table & _REGION_ENTRY_INV)) { + if (unlikely(*table & _REGION_ENTRY_INVALID)) { address = (address + PMD_SIZE) & PMD_MASK; continue; } table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 20) & 0x7ff); - if (unlikely(*table & _SEGMENT_ENTRY_INV)) { + if (unlikely(*table & _SEGMENT_ENTRY_INVALID)) { address = (address + PMD_SIZE) & PMD_MASK; continue; } @@ -687,7 +688,7 @@ int gmap_ipte_notify(struct gmap *gmap, unsigned long start, unsigned long len) continue; /* Set notification bit in the pgste of the pte */ entry = *ptep; - if ((pte_val(entry) & (_PAGE_INVALID | _PAGE_RO)) == 0) { + if ((pte_val(entry) & (_PAGE_INVALID | _PAGE_PROTECT)) == 0) { pgste = pgste_get_lock(ptep); pgste_val(pgste) |= PGSTE_IN_BIT; pgste_set_unlock(ptep, pgste); @@ -752,8 +753,9 @@ static inline unsigned long *page_table_alloc_pgste(struct mm_struct *mm, page->index = (unsigned long) mp; atomic_set(&page->_mapcount, 3); table = (unsigned long *) page_to_phys(page); - clear_table(table, _PAGE_TYPE_EMPTY, PAGE_SIZE/2); - clear_table(table + PTRS_PER_PTE, 0, PAGE_SIZE/2); + clear_table(table, _PAGE_INVALID, PAGE_SIZE/2); + clear_table(table + PTRS_PER_PTE, PGSTE_HR_BIT | PGSTE_HC_BIT, + PAGE_SIZE/2); return table; } @@ -791,26 +793,21 @@ int set_guest_storage_key(struct mm_struct *mm, unsigned long addr, pgste_val(new) |= (key & (_PAGE_CHANGED | _PAGE_REFERENCED)) << 48; pgste_val(new) |= (key & (_PAGE_ACC_BITS | _PAGE_FP_BIT)) << 56; if (!(pte_val(*ptep) & _PAGE_INVALID)) { - unsigned long address, bits; - unsigned char skey; + unsigned long address, bits, skey; address = pte_val(*ptep) & PAGE_MASK; - skey = page_get_storage_key(address); + skey = (unsigned long) page_get_storage_key(address); bits = skey & (_PAGE_CHANGED | _PAGE_REFERENCED); + skey = key & (_PAGE_ACC_BITS | _PAGE_FP_BIT); /* Set storage key ACC and FP */ - page_set_storage_key(address, - (key & (_PAGE_ACC_BITS | _PAGE_FP_BIT)), - !nq); - + page_set_storage_key(address, skey, !nq); /* Merge host changed & referenced into pgste */ pgste_val(new) |= bits << 52; - /* Transfer skey changed & referenced bit to kvm user bits */ - pgste_val(new) |= bits << 45; /* PGSTE_UR_BIT & PGSTE_UC_BIT */ } /* changing the guest storage key is considered a change of the page */ if ((pgste_val(new) ^ pgste_val(old)) & (PGSTE_ACC_BITS | PGSTE_FP_BIT | PGSTE_GR_BIT | PGSTE_GC_BIT)) - pgste_val(new) |= PGSTE_UC_BIT; + pgste_val(new) |= PGSTE_HC_BIT; pgste_set_unlock(ptep, new); pte_unmap_unlock(*ptep, ptl); @@ -878,7 +875,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm, unsigned long vmaddr) pgtable_page_ctor(page); atomic_set(&page->_mapcount, 1); table = (unsigned long *) page_to_phys(page); - clear_table(table, _PAGE_TYPE_EMPTY, PAGE_SIZE); + clear_table(table, _PAGE_INVALID, PAGE_SIZE); spin_lock_bh(&mm->context.list_lock); list_add(&page->lru, &mm->context.pgtable_list); } else { @@ -1007,7 +1004,6 @@ void tlb_table_flush(struct mmu_gather *tlb) struct mmu_table_batch **batch = &tlb->batch; if (*batch) { - __tlb_flush_mm(tlb->mm); call_rcu_sched(&(*batch)->rcu, tlb_remove_table_rcu); *batch = NULL; } @@ -1017,11 +1013,12 @@ void tlb_remove_table(struct mmu_gather *tlb, void *table) { struct mmu_table_batch **batch = &tlb->batch; + tlb->mm->context.flush_mm = 1; if (*batch == NULL) { *batch = (struct mmu_table_batch *) __get_free_page(GFP_NOWAIT | __GFP_NOWARN); if (*batch == NULL) { - __tlb_flush_mm(tlb->mm); + __tlb_flush_mm_lazy(tlb->mm); tlb_remove_table_one(table); return; } @@ -1029,7 +1026,7 @@ void tlb_remove_table(struct mmu_gather *tlb, void *table) } (*batch)->tables[(*batch)->nr++] = table; if ((*batch)->nr == MAX_TABLE_BATCH) - tlb_table_flush(tlb); + tlb_flush_mmu(tlb); } #ifdef CONFIG_TRANSPARENT_HUGEPAGE @@ -1198,9 +1195,9 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp) list_del(lh); } ptep = (pte_t *) pgtable; - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + pte_val(*ptep) = _PAGE_INVALID; ptep++; - pte_val(*ptep) = _PAGE_TYPE_EMPTY; + pte_val(*ptep) = _PAGE_INVALID; return pgtable; } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index 8b268fcc4612..bcfb70b60be6 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -69,7 +69,7 @@ static pte_t __ref *vmem_pte_alloc(unsigned long address) pte = alloc_bootmem(PTRS_PER_PTE * sizeof(pte_t)); if (!pte) return NULL; - clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY, + clear_table((unsigned long *) pte, _PAGE_INVALID, PTRS_PER_PTE * sizeof(pte_t)); return pte; } @@ -101,7 +101,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro) !(address & ~PUD_MASK) && (address + PUD_SIZE <= end)) { pud_val(*pu_dir) = __pa(address) | _REGION_ENTRY_TYPE_R3 | _REGION3_ENTRY_LARGE | - (ro ? _REGION_ENTRY_RO : 0); + (ro ? _REGION_ENTRY_PROTECT : 0); address += PUD_SIZE; continue; } @@ -118,7 +118,8 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro) !(address & ~PMD_MASK) && (address + PMD_SIZE <= end)) { pmd_val(*pm_dir) = __pa(address) | _SEGMENT_ENTRY | _SEGMENT_ENTRY_LARGE | - (ro ? _SEGMENT_ENTRY_RO : 0); + _SEGMENT_ENTRY_YOUNG | + (ro ? _SEGMENT_ENTRY_PROTECT : 0); address += PMD_SIZE; continue; } @@ -131,7 +132,8 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro) } pt_dir = pte_offset_kernel(pm_dir, address); - pte_val(*pt_dir) = __pa(address) | (ro ? _PAGE_RO : 0); + pte_val(*pt_dir) = __pa(address) | + pgprot_val(ro ? PAGE_KERNEL_RO : PAGE_KERNEL); address += PAGE_SIZE; } ret = 0; @@ -154,7 +156,7 @@ static void vmem_remove_range(unsigned long start, unsigned long size) pte_t *pt_dir; pte_t pte; - pte_val(pte) = _PAGE_TYPE_EMPTY; + pte_val(pte) = _PAGE_INVALID; while (address < end) { pg_dir = pgd_offset_k(address); if (pgd_none(*pg_dir)) { @@ -255,7 +257,8 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node) new_page =__pa(vmem_alloc_pages(0)); if (!new_page) goto out; - pte_val(*pt_dir) = __pa(new_page); + pte_val(*pt_dir) = + __pa(new_page) | pgprot_val(PAGE_KERNEL); } address += PAGE_SIZE; } diff --git a/arch/s390/pci/Makefile b/arch/s390/pci/Makefile index 086a2e37935d..a9e1dc4ae442 100644 --- a/arch/s390/pci/Makefile +++ b/arch/s390/pci/Makefile @@ -2,5 +2,5 @@ # Makefile for the s390 PCI subsystem. # -obj-$(CONFIG_PCI) += pci.o pci_dma.o pci_clp.o pci_msi.o pci_sysfs.o \ +obj-$(CONFIG_PCI) += pci.o pci_dma.o pci_clp.o pci_sysfs.o \ pci_event.o pci_debug.o pci_insn.o diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index e2956ad39a4f..f17a8343e360 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -42,45 +42,26 @@ #define SIC_IRQ_MODE_SINGLE 1 #define ZPCI_NR_DMA_SPACES 1 -#define ZPCI_MSI_VEC_BITS 6 #define ZPCI_NR_DEVICES CONFIG_PCI_NR_FUNCTIONS /* list of all detected zpci devices */ -LIST_HEAD(zpci_list); -EXPORT_SYMBOL_GPL(zpci_list); -DEFINE_MUTEX(zpci_list_lock); -EXPORT_SYMBOL_GPL(zpci_list_lock); +static LIST_HEAD(zpci_list); +static DEFINE_SPINLOCK(zpci_list_lock); -static struct pci_hp_callback_ops *hotplug_ops; +static void zpci_enable_irq(struct irq_data *data); +static void zpci_disable_irq(struct irq_data *data); -static DECLARE_BITMAP(zpci_domain, ZPCI_NR_DEVICES); -static DEFINE_SPINLOCK(zpci_domain_lock); - -struct callback { - irq_handler_t handler; - void *data; +static struct irq_chip zpci_irq_chip = { + .name = "zPCI", + .irq_unmask = zpci_enable_irq, + .irq_mask = zpci_disable_irq, }; -struct zdev_irq_map { - unsigned long aibv; /* AI bit vector */ - int msi_vecs; /* consecutive MSI-vectors used */ - int __unused; - struct callback cb[ZPCI_NR_MSI_VECS]; /* callback handler array */ - spinlock_t lock; /* protect callbacks against de-reg */ -}; - -struct intr_bucket { - /* amap of adapters, one bit per dev, corresponds to one irq nr */ - unsigned long *alloc; - /* AI summary bit, global page for all devices */ - unsigned long *aisb; - /* pointer to aibv and callback data in zdev */ - struct zdev_irq_map *imap[ZPCI_NR_DEVICES]; - /* protects the whole bucket struct */ - spinlock_t lock; -}; +static DECLARE_BITMAP(zpci_domain, ZPCI_NR_DEVICES); +static DEFINE_SPINLOCK(zpci_domain_lock); -static struct intr_bucket *bucket; +static struct airq_iv *zpci_aisb_iv; +static struct airq_iv *zpci_aibv[ZPCI_NR_DEVICES]; /* Adapter interrupt definitions */ static void zpci_irq_handler(struct airq_struct *airq); @@ -96,27 +77,8 @@ static DECLARE_BITMAP(zpci_iomap, ZPCI_IOMAP_MAX_ENTRIES); struct zpci_iomap_entry *zpci_iomap_start; EXPORT_SYMBOL_GPL(zpci_iomap_start); -/* highest irq summary bit */ -static int __read_mostly aisb_max; - -static struct kmem_cache *zdev_irq_cache; static struct kmem_cache *zdev_fmb_cache; -static inline int irq_to_msi_nr(unsigned int irq) -{ - return irq & ZPCI_MSI_MASK; -} - -static inline int irq_to_dev_nr(unsigned int irq) -{ - return irq >> ZPCI_MSI_VEC_BITS; -} - -static inline struct zdev_irq_map *get_imap(unsigned int irq) -{ - return bucket->imap[irq_to_dev_nr(irq)]; -} - struct zpci_dev *get_zdev(struct pci_dev *pdev) { return (struct zpci_dev *) pdev->sysdata; @@ -126,22 +88,17 @@ struct zpci_dev *get_zdev_by_fid(u32 fid) { struct zpci_dev *tmp, *zdev = NULL; - mutex_lock(&zpci_list_lock); + spin_lock(&zpci_list_lock); list_for_each_entry(tmp, &zpci_list, entry) { if (tmp->fid == fid) { zdev = tmp; break; } } - mutex_unlock(&zpci_list_lock); + spin_unlock(&zpci_list_lock); return zdev; } -bool zpci_fid_present(u32 fid) -{ - return (get_zdev_by_fid(fid) != NULL) ? true : false; -} - static struct zpci_dev *get_zdev_by_bus(struct pci_bus *bus) { return (bus && bus->sysdata) ? (struct zpci_dev *) bus->sysdata : NULL; @@ -160,8 +117,7 @@ int pci_proc_domain(struct pci_bus *bus) EXPORT_SYMBOL_GPL(pci_proc_domain); /* Modify PCI: Register adapter interruptions */ -static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb, - u64 aibv) +static int zpci_set_airq(struct zpci_dev *zdev) { u64 req = ZPCI_CREATE_REQ(zdev->fh, 0, ZPCI_MOD_FC_REG_INT); struct zpci_fib *fib; @@ -172,14 +128,14 @@ static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb, return -ENOMEM; fib->isc = PCI_ISC; - fib->noi = zdev->irq_map->msi_vecs; fib->sum = 1; /* enable summary notifications */ - fib->aibv = aibv; - fib->aibvo = 0; /* every function has its own page */ - fib->aisb = (u64) bucket->aisb + aisb / 8; - fib->aisbo = aisb & ZPCI_MSI_MASK; + fib->noi = airq_iv_end(zdev->aibv); + fib->aibv = (unsigned long) zdev->aibv->vector; + fib->aibvo = 0; /* each zdev has its own interrupt vector */ + fib->aisb = (unsigned long) zpci_aisb_iv->vector + (zdev->aisb/64)*8; + fib->aisbo = zdev->aisb & 63; - rc = s390pci_mod_fc(req, fib); + rc = zpci_mod_fc(req, fib); pr_debug("%s mpcifc returned noi: %d\n", __func__, fib->noi); free_page((unsigned long) fib); @@ -209,7 +165,7 @@ static int mod_pci(struct zpci_dev *zdev, int fn, u8 dmaas, struct mod_pci_args fib->iota = args->iota; fib->fmb_addr = args->fmb_addr; - rc = s390pci_mod_fc(req, fib); + rc = zpci_mod_fc(req, fib); free_page((unsigned long) fib); return rc; } @@ -234,7 +190,7 @@ int zpci_unregister_ioat(struct zpci_dev *zdev, u8 dmaas) } /* Modify PCI: Unregister adapter interruptions */ -static int zpci_unregister_airq(struct zpci_dev *zdev) +static int zpci_clear_airq(struct zpci_dev *zdev) { struct mod_pci_args args = { 0, 0, 0, 0 }; @@ -283,7 +239,7 @@ static int zpci_cfg_load(struct zpci_dev *zdev, int offset, u32 *val, u8 len) u64 data; int rc; - rc = s390pci_load(&data, req, offset); + rc = zpci_load(&data, req, offset); if (!rc) { data = data << ((8 - len) * 8); data = le64_to_cpu(data); @@ -301,25 +257,46 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len) data = cpu_to_le64(data); data = data >> ((8 - len) * 8); - rc = s390pci_store(data, req, offset); + rc = zpci_store(data, req, offset); return rc; } -void enable_irq(unsigned int irq) +static int zpci_msi_set_mask_bits(struct msi_desc *msi, u32 mask, u32 flag) +{ + int offset, pos; + u32 mask_bits; + + if (msi->msi_attrib.is_msix) { + offset = msi->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE + + PCI_MSIX_ENTRY_VECTOR_CTRL; + msi->masked = readl(msi->mask_base + offset); + writel(flag, msi->mask_base + offset); + } else if (msi->msi_attrib.maskbit) { + pos = (long) msi->mask_base; + pci_read_config_dword(msi->dev, pos, &mask_bits); + mask_bits &= ~(mask); + mask_bits |= flag & mask; + pci_write_config_dword(msi->dev, pos, mask_bits); + } else + return 0; + + msi->msi_attrib.maskbit = !!flag; + return 1; +} + +static void zpci_enable_irq(struct irq_data *data) { - struct msi_desc *msi = irq_get_msi_desc(irq); + struct msi_desc *msi = irq_get_msi_desc(data->irq); zpci_msi_set_mask_bits(msi, 1, 0); } -EXPORT_SYMBOL_GPL(enable_irq); -void disable_irq(unsigned int irq) +static void zpci_disable_irq(struct irq_data *data) { - struct msi_desc *msi = irq_get_msi_desc(irq); + struct msi_desc *msi = irq_get_msi_desc(data->irq); zpci_msi_set_mask_bits(msi, 1, 1); } -EXPORT_SYMBOL_GPL(disable_irq); void pcibios_fixup_bus(struct pci_bus *bus) { @@ -404,152 +381,147 @@ static struct pci_ops pci_root_ops = { .write = pci_write, }; -/* store the last handled bit to implement fair scheduling of devices */ -static DEFINE_PER_CPU(unsigned long, next_sbit); - static void zpci_irq_handler(struct airq_struct *airq) { - unsigned long sbit, mbit, last = 0, start = __get_cpu_var(next_sbit); - int rescan = 0, max = aisb_max; - struct zdev_irq_map *imap; + unsigned long si, ai; + struct airq_iv *aibv; + int irqs_on = 0; inc_irq_stat(IRQIO_PCI); - sbit = start; - -scan: - /* find summary_bit */ - for_each_set_bit_left_cont(sbit, bucket->aisb, max) { - clear_bit(63 - (sbit & 63), bucket->aisb + (sbit >> 6)); - last = sbit; + for (si = 0;;) { + /* Scan adapter summary indicator bit vector */ + si = airq_iv_scan(zpci_aisb_iv, si, airq_iv_end(zpci_aisb_iv)); + if (si == -1UL) { + if (irqs_on++) + /* End of second scan with interrupts on. */ + break; + /* First scan complete, reenable interrupts. */ + zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); + si = 0; + continue; + } - /* find vector bit */ - imap = bucket->imap[sbit]; - for_each_set_bit_left(mbit, &imap->aibv, imap->msi_vecs) { + /* Scan the adapter interrupt vector for this device. */ + aibv = zpci_aibv[si]; + for (ai = 0;;) { + ai = airq_iv_scan(aibv, ai, airq_iv_end(aibv)); + if (ai == -1UL) + break; inc_irq_stat(IRQIO_MSI); - clear_bit(63 - mbit, &imap->aibv); - - spin_lock(&imap->lock); - if (imap->cb[mbit].handler) - imap->cb[mbit].handler(mbit, - imap->cb[mbit].data); - spin_unlock(&imap->lock); + airq_iv_lock(aibv, ai); + generic_handle_irq(airq_iv_get_data(aibv, ai)); + airq_iv_unlock(aibv, ai); } } - - if (rescan) - goto out; - - /* scan the skipped bits */ - if (start > 0) { - sbit = 0; - max = start; - start = 0; - goto scan; - } - - /* enable interrupts again */ - set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); - - /* check again to not lose initiative */ - rmb(); - max = aisb_max; - sbit = find_first_bit_left(bucket->aisb, max); - if (sbit != max) { - rescan++; - goto scan; - } -out: - /* store next device bit to scan */ - __get_cpu_var(next_sbit) = (++last >= aisb_max) ? 0 : last; } -/* msi_vecs - number of requested interrupts, 0 place function to error state */ -static int zpci_setup_msi(struct pci_dev *pdev, int msi_vecs) +int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) { struct zpci_dev *zdev = get_zdev(pdev); - unsigned int aisb, msi_nr; + unsigned int hwirq, irq, msi_vecs; + unsigned long aisb; struct msi_desc *msi; + struct msi_msg msg; int rc; - /* store the number of used MSI vectors */ - zdev->irq_map->msi_vecs = min(msi_vecs, ZPCI_NR_MSI_VECS); - - spin_lock(&bucket->lock); - aisb = find_first_zero_bit(bucket->alloc, PAGE_SIZE); - /* alloc map exhausted? */ - if (aisb == PAGE_SIZE) { - spin_unlock(&bucket->lock); - return -EIO; - } - set_bit(aisb, bucket->alloc); - spin_unlock(&bucket->lock); + pr_debug("%s: requesting %d MSI-X interrupts...", __func__, nvec); + if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI) + return -EINVAL; + msi_vecs = min(nvec, ZPCI_MSI_VEC_MAX); + msi_vecs = min_t(unsigned int, msi_vecs, CONFIG_PCI_NR_MSI); + /* Allocate adapter summary indicator bit */ + rc = -EIO; + aisb = airq_iv_alloc_bit(zpci_aisb_iv); + if (aisb == -1UL) + goto out; zdev->aisb = aisb; - if (aisb + 1 > aisb_max) - aisb_max = aisb + 1; - /* wire up IRQ shortcut pointer */ - bucket->imap[zdev->aisb] = zdev->irq_map; - pr_debug("%s: imap[%u] linked to %p\n", __func__, zdev->aisb, zdev->irq_map); + /* Create adapter interrupt vector */ + rc = -ENOMEM; + zdev->aibv = airq_iv_create(msi_vecs, AIRQ_IV_DATA | AIRQ_IV_BITLOCK); + if (!zdev->aibv) + goto out_si; - /* TODO: irq number 0 wont be found if we return less than requested MSIs. - * ignore it for now and fix in common code. - */ - msi_nr = aisb << ZPCI_MSI_VEC_BITS; + /* Wire up shortcut pointer */ + zpci_aibv[aisb] = zdev->aibv; + /* Request MSI interrupts */ + hwirq = 0; list_for_each_entry(msi, &pdev->msi_list, list) { - rc = zpci_setup_msi_irq(zdev, msi, msi_nr, - aisb << ZPCI_MSI_VEC_BITS); + rc = -EIO; + irq = irq_alloc_desc(0); /* Alloc irq on node 0 */ + if (irq == NO_IRQ) + goto out_msi; + rc = irq_set_msi_desc(irq, msi); if (rc) - return rc; - msi_nr++; + goto out_msi; + irq_set_chip_and_handler(irq, &zpci_irq_chip, + handle_simple_irq); + msg.data = hwirq; + msg.address_lo = zdev->msi_addr & 0xffffffff; + msg.address_hi = zdev->msi_addr >> 32; + write_msi_msg(irq, &msg); + airq_iv_set_data(zdev->aibv, hwirq, irq); + hwirq++; } - rc = zpci_register_airq(zdev, aisb, (u64) &zdev->irq_map->aibv); - if (rc) { - clear_bit(aisb, bucket->alloc); - dev_err(&pdev->dev, "register MSI failed with: %d\n", rc); - return rc; + /* Enable adapter interrupts */ + rc = zpci_set_airq(zdev); + if (rc) + goto out_msi; + + return (msi_vecs == nvec) ? 0 : msi_vecs; + +out_msi: + list_for_each_entry(msi, &pdev->msi_list, list) { + if (hwirq-- == 0) + break; + irq_set_msi_desc(msi->irq, NULL); + irq_free_desc(msi->irq); + msi->msg.address_lo = 0; + msi->msg.address_hi = 0; + msi->msg.data = 0; + msi->irq = 0; } - return (zdev->irq_map->msi_vecs == msi_vecs) ? - 0 : zdev->irq_map->msi_vecs; + zpci_aibv[aisb] = NULL; + airq_iv_release(zdev->aibv); +out_si: + airq_iv_free_bit(zpci_aisb_iv, aisb); +out: + dev_err(&pdev->dev, "register MSI failed with: %d\n", rc); + return rc; } -static void zpci_teardown_msi(struct pci_dev *pdev) +void arch_teardown_msi_irqs(struct pci_dev *pdev) { struct zpci_dev *zdev = get_zdev(pdev); struct msi_desc *msi; - int aisb, rc; + int rc; - rc = zpci_unregister_airq(zdev); + pr_info("%s: on pdev: %p\n", __func__, pdev); + + /* Disable adapter interrupts */ + rc = zpci_clear_airq(zdev); if (rc) { dev_err(&pdev->dev, "deregister MSI failed with: %d\n", rc); return; } - msi = list_first_entry(&pdev->msi_list, struct msi_desc, list); - aisb = irq_to_dev_nr(msi->irq); - - list_for_each_entry(msi, &pdev->msi_list, list) - zpci_teardown_msi_irq(zdev, msi); - - clear_bit(aisb, bucket->alloc); - if (aisb + 1 == aisb_max) - aisb_max--; -} - -int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) -{ - pr_debug("%s: requesting %d MSI-X interrupts...", __func__, nvec); - if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI) - return -EINVAL; - return zpci_setup_msi(pdev, nvec); -} + /* Release MSI interrupts */ + list_for_each_entry(msi, &pdev->msi_list, list) { + zpci_msi_set_mask_bits(msi, 1, 1); + irq_set_msi_desc(msi->irq, NULL); + irq_free_desc(msi->irq); + msi->msg.address_lo = 0; + msi->msg.address_hi = 0; + msi->msg.data = 0; + msi->irq = 0; + } -void arch_teardown_msi_irqs(struct pci_dev *pdev) -{ - pr_info("%s: on pdev: %p\n", __func__, pdev); - zpci_teardown_msi(pdev); + zpci_aibv[zdev->aisb] = NULL; + airq_iv_release(zdev->aibv); + airq_iv_free_bit(zpci_aisb_iv, zdev->aisb); } static void zpci_map_resources(struct zpci_dev *zdev) @@ -564,8 +536,6 @@ static void zpci_map_resources(struct zpci_dev *zdev) continue; pdev->resource[i].start = (resource_size_t) pci_iomap(pdev, i, 0); pdev->resource[i].end = pdev->resource[i].start + len - 1; - pr_debug("BAR%i: -> start: %Lx end: %Lx\n", - i, pdev->resource[i].start, pdev->resource[i].end); } } @@ -589,162 +559,47 @@ struct zpci_dev *zpci_alloc_device(void) /* Alloc memory for our private pci device data */ zdev = kzalloc(sizeof(*zdev), GFP_KERNEL); - if (!zdev) - return ERR_PTR(-ENOMEM); - - /* Alloc aibv & callback space */ - zdev->irq_map = kmem_cache_zalloc(zdev_irq_cache, GFP_KERNEL); - if (!zdev->irq_map) - goto error; - WARN_ON((u64) zdev->irq_map & 0xff); - return zdev; - -error: - kfree(zdev); - return ERR_PTR(-ENOMEM); + return zdev ? : ERR_PTR(-ENOMEM); } void zpci_free_device(struct zpci_dev *zdev) { - kmem_cache_free(zdev_irq_cache, zdev->irq_map); kfree(zdev); } -/* - * Too late for any s390 specific setup, since interrupts must be set up - * already which requires DMA setup too and the pci scan will access the - * config space, which only works if the function handle is enabled. - */ -int pcibios_enable_device(struct pci_dev *pdev, int mask) -{ - struct resource *res; - u16 cmd; - int i; - - pci_read_config_word(pdev, PCI_COMMAND, &cmd); - - for (i = 0; i < PCI_BAR_COUNT; i++) { - res = &pdev->resource[i]; - - if (res->flags & IORESOURCE_IO) - return -EINVAL; - - if (res->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } - pci_write_config_word(pdev, PCI_COMMAND, cmd); - return 0; -} - int pcibios_add_platform_entries(struct pci_dev *pdev) { return zpci_sysfs_add_device(&pdev->dev); } -int zpci_request_irq(unsigned int irq, irq_handler_t handler, void *data) -{ - int msi_nr = irq_to_msi_nr(irq); - struct zdev_irq_map *imap; - struct msi_desc *msi; - - msi = irq_get_msi_desc(irq); - if (!msi) - return -EIO; - - imap = get_imap(irq); - spin_lock_init(&imap->lock); - - pr_debug("%s: register handler for IRQ:MSI %d:%d\n", __func__, irq >> 6, msi_nr); - imap->cb[msi_nr].handler = handler; - imap->cb[msi_nr].data = data; - - /* - * The generic MSI code returns with the interrupt disabled on the - * card, using the MSI mask bits. Firmware doesn't appear to unmask - * at that level, so we do it here by hand. - */ - zpci_msi_set_mask_bits(msi, 1, 0); - return 0; -} - -void zpci_free_irq(unsigned int irq) -{ - struct zdev_irq_map *imap = get_imap(irq); - int msi_nr = irq_to_msi_nr(irq); - unsigned long flags; - - pr_debug("%s: for irq: %d\n", __func__, irq); - - spin_lock_irqsave(&imap->lock, flags); - imap->cb[msi_nr].handler = NULL; - imap->cb[msi_nr].data = NULL; - spin_unlock_irqrestore(&imap->lock, flags); -} - -int request_irq(unsigned int irq, irq_handler_t handler, - unsigned long irqflags, const char *devname, void *dev_id) -{ - pr_debug("%s: irq: %d handler: %p flags: %lx dev: %s\n", - __func__, irq, handler, irqflags, devname); - - return zpci_request_irq(irq, handler, dev_id); -} -EXPORT_SYMBOL_GPL(request_irq); - -void free_irq(unsigned int irq, void *dev_id) -{ - zpci_free_irq(irq); -} -EXPORT_SYMBOL_GPL(free_irq); - static int __init zpci_irq_init(void) { - int cpu, rc; - - bucket = kzalloc(sizeof(*bucket), GFP_KERNEL); - if (!bucket) - return -ENOMEM; - - bucket->aisb = (unsigned long *) get_zeroed_page(GFP_KERNEL); - if (!bucket->aisb) { - rc = -ENOMEM; - goto out_aisb; - } - - bucket->alloc = (unsigned long *) get_zeroed_page(GFP_KERNEL); - if (!bucket->alloc) { - rc = -ENOMEM; - goto out_alloc; - } + int rc; rc = register_adapter_interrupt(&zpci_airq); if (rc) - goto out_ai; + goto out; /* Set summary to 1 to be called every time for the ISC. */ *zpci_airq.lsi_ptr = 1; - for_each_online_cpu(cpu) - per_cpu(next_sbit, cpu) = 0; + rc = -ENOMEM; + zpci_aisb_iv = airq_iv_create(ZPCI_NR_DEVICES, AIRQ_IV_ALLOC); + if (!zpci_aisb_iv) + goto out_airq; - spin_lock_init(&bucket->lock); - set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); + zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); return 0; -out_ai: - free_page((unsigned long) bucket->alloc); -out_alloc: - free_page((unsigned long) bucket->aisb); -out_aisb: - kfree(bucket); +out_airq: + unregister_adapter_interrupt(&zpci_airq); +out: return rc; } static void zpci_irq_exit(void) { - free_page((unsigned long) bucket->alloc); - free_page((unsigned long) bucket->aisb); + airq_iv_release(zpci_aisb_iv); unregister_adapter_interrupt(&zpci_airq); - kfree(bucket); } static struct resource *zpci_alloc_bus_resource(unsigned long start, unsigned long size, @@ -801,16 +656,49 @@ static void zpci_free_iomap(struct zpci_dev *zdev, int entry) int pcibios_add_device(struct pci_dev *pdev) { struct zpci_dev *zdev = get_zdev(pdev); + struct resource *res; + int i; + + zdev->pdev = pdev; + zpci_map_resources(zdev); + + for (i = 0; i < PCI_BAR_COUNT; i++) { + res = &pdev->resource[i]; + if (res->parent || !res->flags) + continue; + pci_claim_resource(pdev, i); + } + + return 0; +} + +int pcibios_enable_device(struct pci_dev *pdev, int mask) +{ + struct zpci_dev *zdev = get_zdev(pdev); + struct resource *res; + u16 cmd; + int i; zdev->pdev = pdev; zpci_debug_init_device(zdev); zpci_fmb_enable_device(zdev); zpci_map_resources(zdev); + pci_read_config_word(pdev, PCI_COMMAND, &cmd); + for (i = 0; i < PCI_BAR_COUNT; i++) { + res = &pdev->resource[i]; + + if (res->flags & IORESOURCE_IO) + return -EINVAL; + + if (res->flags & IORESOURCE_MEM) + cmd |= PCI_COMMAND_MEMORY; + } + pci_write_config_word(pdev, PCI_COMMAND, cmd); return 0; } -void pcibios_release_device(struct pci_dev *pdev) +void pcibios_disable_device(struct pci_dev *pdev) { struct zpci_dev *zdev = get_zdev(pdev); @@ -898,6 +786,8 @@ int zpci_enable_device(struct zpci_dev *zdev) rc = zpci_dma_init_device(zdev); if (rc) goto out_dma; + + zdev->state = ZPCI_FN_STATE_ONLINE; return 0; out_dma: @@ -926,18 +816,16 @@ int zpci_create_device(struct zpci_dev *zdev) rc = zpci_enable_device(zdev); if (rc) goto out_free; - - zdev->state = ZPCI_FN_STATE_ONLINE; } rc = zpci_scan_bus(zdev); if (rc) goto out_disable; - mutex_lock(&zpci_list_lock); + spin_lock(&zpci_list_lock); list_add_tail(&zdev->entry, &zpci_list); - if (hotplug_ops) - hotplug_ops->create_slot(zdev); - mutex_unlock(&zpci_list_lock); + spin_unlock(&zpci_list_lock); + + zpci_init_slot(zdev); return 0; @@ -967,15 +855,10 @@ static inline int barsize(u8 size) static int zpci_mem_init(void) { - zdev_irq_cache = kmem_cache_create("PCI_IRQ_cache", sizeof(struct zdev_irq_map), - L1_CACHE_BYTES, SLAB_HWCACHE_ALIGN, NULL); - if (!zdev_irq_cache) - goto error_zdev; - zdev_fmb_cache = kmem_cache_create("PCI_FMB_cache", sizeof(struct zpci_fmb), 16, 0, NULL); if (!zdev_fmb_cache) - goto error_fmb; + goto error_zdev; /* TODO: use realloc */ zpci_iomap_start = kzalloc(ZPCI_IOMAP_MAX_ENTRIES * sizeof(*zpci_iomap_start), @@ -986,8 +869,6 @@ static int zpci_mem_init(void) error_iomap: kmem_cache_destroy(zdev_fmb_cache); -error_fmb: - kmem_cache_destroy(zdev_irq_cache); error_zdev: return -ENOMEM; } @@ -995,28 +876,10 @@ error_zdev: static void zpci_mem_exit(void) { kfree(zpci_iomap_start); - kmem_cache_destroy(zdev_irq_cache); kmem_cache_destroy(zdev_fmb_cache); } -void zpci_register_hp_ops(struct pci_hp_callback_ops *ops) -{ - mutex_lock(&zpci_list_lock); - hotplug_ops = ops; - mutex_unlock(&zpci_list_lock); -} -EXPORT_SYMBOL_GPL(zpci_register_hp_ops); - -void zpci_deregister_hp_ops(void) -{ - mutex_lock(&zpci_list_lock); - hotplug_ops = NULL; - mutex_unlock(&zpci_list_lock); -} -EXPORT_SYMBOL_GPL(zpci_deregister_hp_ops); - -unsigned int s390_pci_probe; -EXPORT_SYMBOL_GPL(s390_pci_probe); +static unsigned int s390_pci_probe; char * __init pcibios_setup(char *str) { @@ -1044,16 +907,12 @@ static int __init pci_base_init(void) rc = zpci_debug_init(); if (rc) - return rc; + goto out; rc = zpci_mem_init(); if (rc) goto out_mem; - rc = zpci_msihash_init(); - if (rc) - goto out_hash; - rc = zpci_irq_init(); if (rc) goto out_irq; @@ -1062,7 +921,7 @@ static int __init pci_base_init(void) if (rc) goto out_dma; - rc = clp_find_pci_devices(); + rc = clp_scan_pci_devices(); if (rc) goto out_find; @@ -1073,11 +932,15 @@ out_find: out_dma: zpci_irq_exit(); out_irq: - zpci_msihash_exit(); -out_hash: zpci_mem_exit(); out_mem: zpci_debug_exit(); +out: return rc; } -subsys_initcall(pci_base_init); +subsys_initcall_sync(pci_base_init); + +void zpci_rescan(void) +{ + clp_rescan_pci_devices_simple(); +} diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index 2e9539625d93..475563c3d1e4 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -36,9 +36,9 @@ static inline u8 clp_instr(void *data) return cc; } -static void *clp_alloc_block(void) +static void *clp_alloc_block(gfp_t gfp_mask) { - return (void *) __get_free_pages(GFP_KERNEL, get_order(CLP_BLK_SIZE)); + return (void *) __get_free_pages(gfp_mask, get_order(CLP_BLK_SIZE)); } static void clp_free_block(void *ptr) @@ -70,7 +70,7 @@ static int clp_query_pci_fngrp(struct zpci_dev *zdev, u8 pfgid) struct clp_req_rsp_query_pci_grp *rrb; int rc; - rrb = clp_alloc_block(); + rrb = clp_alloc_block(GFP_KERNEL); if (!rrb) return -ENOMEM; @@ -113,7 +113,7 @@ static int clp_query_pci_fn(struct zpci_dev *zdev, u32 fh) struct clp_req_rsp_query_pci *rrb; int rc; - rrb = clp_alloc_block(); + rrb = clp_alloc_block(GFP_KERNEL); if (!rrb) return -ENOMEM; @@ -179,9 +179,9 @@ error: static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command) { struct clp_req_rsp_set_pci *rrb; - int rc, retries = 1000; + int rc, retries = 100; - rrb = clp_alloc_block(); + rrb = clp_alloc_block(GFP_KERNEL); if (!rrb) return -ENOMEM; @@ -199,7 +199,7 @@ static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command) retries--; if (retries < 0) break; - msleep(1); + msleep(20); } } while (rrb->response.hdr.rsp == CLP_RC_SETPCIFN_BUSY); @@ -245,49 +245,12 @@ int clp_disable_fh(struct zpci_dev *zdev) return rc; } -static void clp_check_pcifn_entry(struct clp_fh_list_entry *entry) +static int clp_list_pci(struct clp_req_rsp_list_pci *rrb, + void (*cb)(struct clp_fh_list_entry *entry)) { - int present, rc; - - if (!entry->vendor_id) - return; - - /* TODO: be a little bit more scalable */ - present = zpci_fid_present(entry->fid); - - if (present) - pr_debug("%s: device %x already present\n", __func__, entry->fid); - - /* skip already used functions */ - if (present && entry->config_state) - return; - - /* aev 306: function moved to stand-by state */ - if (present && !entry->config_state) { - /* - * The handle is already disabled, that means no iota/irq freeing via - * the firmware interfaces anymore. Need to free resources manually - * (DMA memory, debug, sysfs)... - */ - zpci_stop_device(get_zdev_by_fid(entry->fid)); - return; - } - - rc = clp_add_pci_device(entry->fid, entry->fh, entry->config_state); - if (rc) - pr_err("Failed to add fid: 0x%x\n", entry->fid); -} - -int clp_find_pci_devices(void) -{ - struct clp_req_rsp_list_pci *rrb; u64 resume_token = 0; int entries, i, rc; - rrb = clp_alloc_block(); - if (!rrb) - return -ENOMEM; - do { memset(rrb, 0, sizeof(*rrb)); rrb->request.hdr.len = sizeof(rrb->request); @@ -316,12 +279,101 @@ int clp_find_pci_devices(void) resume_token = rrb->response.resume_token; for (i = 0; i < entries; i++) - clp_check_pcifn_entry(&rrb->response.fh_list[i]); + cb(&rrb->response.fh_list[i]); } while (resume_token); pr_debug("Maximum number of supported PCI functions: %u\n", rrb->response.max_fn); out: + return rc; +} + +static void __clp_add(struct clp_fh_list_entry *entry) +{ + if (!entry->vendor_id) + return; + + clp_add_pci_device(entry->fid, entry->fh, entry->config_state); +} + +static void __clp_rescan(struct clp_fh_list_entry *entry) +{ + struct zpci_dev *zdev; + + if (!entry->vendor_id) + return; + + zdev = get_zdev_by_fid(entry->fid); + if (!zdev) { + clp_add_pci_device(entry->fid, entry->fh, entry->config_state); + return; + } + + if (!entry->config_state) { + /* + * The handle is already disabled, that means no iota/irq freeing via + * the firmware interfaces anymore. Need to free resources manually + * (DMA memory, debug, sysfs)... + */ + zpci_stop_device(zdev); + } +} + +static void __clp_update(struct clp_fh_list_entry *entry) +{ + struct zpci_dev *zdev; + + if (!entry->vendor_id) + return; + + zdev = get_zdev_by_fid(entry->fid); + if (!zdev) + return; + + zdev->fh = entry->fh; +} + +int clp_scan_pci_devices(void) +{ + struct clp_req_rsp_list_pci *rrb; + int rc; + + rrb = clp_alloc_block(GFP_KERNEL); + if (!rrb) + return -ENOMEM; + + rc = clp_list_pci(rrb, __clp_add); + + clp_free_block(rrb); + return rc; +} + +int clp_rescan_pci_devices(void) +{ + struct clp_req_rsp_list_pci *rrb; + int rc; + + rrb = clp_alloc_block(GFP_KERNEL); + if (!rrb) + return -ENOMEM; + + rc = clp_list_pci(rrb, __clp_rescan); + + clp_free_block(rrb); + return rc; +} + +int clp_rescan_pci_devices_simple(void) +{ + struct clp_req_rsp_list_pci *rrb; + int rc; + + rrb = clp_alloc_block(GFP_NOWAIT); + if (!rrb) + return -ENOMEM; + + rc = clp_list_pci(rrb, __clp_update); + clp_free_block(rrb); return rc; } diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c index a2343c1f6e04..7e5573acb063 100644 --- a/arch/s390/pci/pci_dma.c +++ b/arch/s390/pci/pci_dma.c @@ -10,6 +10,7 @@ #include <linux/export.h> #include <linux/iommu-helper.h> #include <linux/dma-mapping.h> +#include <linux/vmalloc.h> #include <linux/pci.h> #include <asm/pci_dma.h> @@ -170,8 +171,8 @@ static int dma_update_trans(struct zpci_dev *zdev, unsigned long pa, */ goto no_refresh; - rc = s390pci_refresh_trans((u64) zdev->fh << 32, start_dma_addr, - nr_pages * PAGE_SIZE); + rc = zpci_refresh_trans((u64) zdev->fh << 32, start_dma_addr, + nr_pages * PAGE_SIZE); no_refresh: spin_unlock_irqrestore(&zdev->dma_table_lock, irq_flags); @@ -407,7 +408,6 @@ static void s390_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int zpci_dma_init_device(struct zpci_dev *zdev) { - unsigned int bitmap_order; int rc; spin_lock_init(&zdev->iommu_bitmap_lock); @@ -421,12 +421,7 @@ int zpci_dma_init_device(struct zpci_dev *zdev) zdev->iommu_size = (unsigned long) high_memory - PAGE_OFFSET; zdev->iommu_pages = zdev->iommu_size >> PAGE_SHIFT; - bitmap_order = get_order(zdev->iommu_pages / 8); - pr_info("iommu_size: 0x%lx iommu_pages: 0x%lx bitmap_order: %i\n", - zdev->iommu_size, zdev->iommu_pages, bitmap_order); - - zdev->iommu_bitmap = (void *) __get_free_pages(GFP_KERNEL | __GFP_ZERO, - bitmap_order); + zdev->iommu_bitmap = vzalloc(zdev->iommu_pages / 8); if (!zdev->iommu_bitmap) { rc = -ENOMEM; goto out_reg; @@ -451,8 +446,7 @@ void zpci_dma_exit_device(struct zpci_dev *zdev) { zpci_unregister_ioat(zdev, 0); dma_cleanup_tables(zdev); - free_pages((unsigned long) zdev->iommu_bitmap, - get_order(zdev->iommu_pages / 8)); + vfree(zdev->iommu_bitmap); zdev->iommu_bitmap = NULL; zdev->next_bit = 0; } diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c index ec62e3a0dc09..0aecaf954845 100644 --- a/arch/s390/pci/pci_event.c +++ b/arch/s390/pci/pci_event.c @@ -69,7 +69,7 @@ static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf) clp_add_pci_device(ccdf->fid, ccdf->fh, 0); break; case 0x0306: - clp_find_pci_devices(); + clp_rescan_pci_devices(); break; default: break; diff --git a/arch/s390/pci/pci_insn.c b/arch/s390/pci/pci_insn.c index 22eeb9d7ffeb..85267c058af8 100644 --- a/arch/s390/pci/pci_insn.c +++ b/arch/s390/pci/pci_insn.c @@ -27,7 +27,7 @@ static inline u8 __mpcifc(u64 req, struct zpci_fib *fib, u8 *status) return cc; } -int s390pci_mod_fc(u64 req, struct zpci_fib *fib) +int zpci_mod_fc(u64 req, struct zpci_fib *fib) { u8 cc, status; @@ -61,7 +61,7 @@ static inline u8 __rpcit(u64 fn, u64 addr, u64 range, u8 *status) return cc; } -int s390pci_refresh_trans(u64 fn, u64 addr, u64 range) +int zpci_refresh_trans(u64 fn, u64 addr, u64 range) { u8 cc, status; @@ -78,7 +78,7 @@ int s390pci_refresh_trans(u64 fn, u64 addr, u64 range) } /* Set Interruption Controls */ -void set_irq_ctrl(u16 ctl, char *unused, u8 isc) +void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc) { asm volatile ( " .insn rsy,0xeb00000000d1,%[ctl],%[isc],%[u]\n" @@ -109,7 +109,7 @@ static inline int __pcilg(u64 *data, u64 req, u64 offset, u8 *status) return cc; } -int s390pci_load(u64 *data, u64 req, u64 offset) +int zpci_load(u64 *data, u64 req, u64 offset) { u8 status; int cc; @@ -125,7 +125,7 @@ int s390pci_load(u64 *data, u64 req, u64 offset) __func__, cc, status, req, offset); return (cc > 0) ? -EIO : cc; } -EXPORT_SYMBOL_GPL(s390pci_load); +EXPORT_SYMBOL_GPL(zpci_load); /* PCI Store */ static inline int __pcistg(u64 data, u64 req, u64 offset, u8 *status) @@ -147,7 +147,7 @@ static inline int __pcistg(u64 data, u64 req, u64 offset, u8 *status) return cc; } -int s390pci_store(u64 data, u64 req, u64 offset) +int zpci_store(u64 data, u64 req, u64 offset) { u8 status; int cc; @@ -163,7 +163,7 @@ int s390pci_store(u64 data, u64 req, u64 offset) __func__, cc, status, req, offset); return (cc > 0) ? -EIO : cc; } -EXPORT_SYMBOL_GPL(s390pci_store); +EXPORT_SYMBOL_GPL(zpci_store); /* PCI Store Block */ static inline int __pcistb(const u64 *data, u64 req, u64 offset, u8 *status) @@ -183,7 +183,7 @@ static inline int __pcistb(const u64 *data, u64 req, u64 offset, u8 *status) return cc; } -int s390pci_store_block(const u64 *data, u64 req, u64 offset) +int zpci_store_block(const u64 *data, u64 req, u64 offset) { u8 status; int cc; @@ -199,4 +199,4 @@ int s390pci_store_block(const u64 *data, u64 req, u64 offset) __func__, cc, status, req, offset); return (cc > 0) ? -EIO : cc; } -EXPORT_SYMBOL_GPL(s390pci_store_block); +EXPORT_SYMBOL_GPL(zpci_store_block); diff --git a/arch/s390/pci/pci_msi.c b/arch/s390/pci/pci_msi.c deleted file mode 100644 index b097aed05a9b..000000000000 --- a/arch/s390/pci/pci_msi.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - * Copyright IBM Corp. 2012 - * - * Author(s): - * Jan Glauber <jang@linux.vnet.ibm.com> - */ - -#define COMPONENT "zPCI" -#define pr_fmt(fmt) COMPONENT ": " fmt - -#include <linux/kernel.h> -#include <linux/err.h> -#include <linux/rculist.h> -#include <linux/hash.h> -#include <linux/pci.h> -#include <linux/msi.h> -#include <asm/hw_irq.h> - -/* mapping of irq numbers to msi_desc */ -static struct hlist_head *msi_hash; -static const unsigned int msi_hash_bits = 8; -#define MSI_HASH_BUCKETS (1U << msi_hash_bits) -#define msi_hashfn(nr) hash_long(nr, msi_hash_bits) - -static DEFINE_SPINLOCK(msi_map_lock); - -struct msi_desc *__irq_get_msi_desc(unsigned int irq) -{ - struct msi_map *map; - - hlist_for_each_entry_rcu(map, - &msi_hash[msi_hashfn(irq)], msi_chain) - if (map->irq == irq) - return map->msi; - return NULL; -} - -int zpci_msi_set_mask_bits(struct msi_desc *msi, u32 mask, u32 flag) -{ - if (msi->msi_attrib.is_msix) { - int offset = msi->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE + - PCI_MSIX_ENTRY_VECTOR_CTRL; - msi->masked = readl(msi->mask_base + offset); - writel(flag, msi->mask_base + offset); - } else { - if (msi->msi_attrib.maskbit) { - int pos; - u32 mask_bits; - - pos = (long) msi->mask_base; - pci_read_config_dword(msi->dev, pos, &mask_bits); - mask_bits &= ~(mask); - mask_bits |= flag & mask; - pci_write_config_dword(msi->dev, pos, mask_bits); - } else { - return 0; - } - } - - msi->msi_attrib.maskbit = !!flag; - return 1; -} - -int zpci_setup_msi_irq(struct zpci_dev *zdev, struct msi_desc *msi, - unsigned int nr, int offset) -{ - struct msi_map *map; - struct msi_msg msg; - int rc; - - map = kmalloc(sizeof(*map), GFP_KERNEL); - if (map == NULL) - return -ENOMEM; - - map->irq = nr; - map->msi = msi; - zdev->msi_map[nr & ZPCI_MSI_MASK] = map; - INIT_HLIST_NODE(&map->msi_chain); - - pr_debug("%s hashing irq: %u to bucket nr: %llu\n", - __func__, nr, msi_hashfn(nr)); - hlist_add_head_rcu(&map->msi_chain, &msi_hash[msi_hashfn(nr)]); - - spin_lock(&msi_map_lock); - rc = irq_set_msi_desc(nr, msi); - if (rc) { - spin_unlock(&msi_map_lock); - hlist_del_rcu(&map->msi_chain); - kfree(map); - zdev->msi_map[nr & ZPCI_MSI_MASK] = NULL; - return rc; - } - spin_unlock(&msi_map_lock); - - msg.data = nr - offset; - msg.address_lo = zdev->msi_addr & 0xffffffff; - msg.address_hi = zdev->msi_addr >> 32; - write_msi_msg(nr, &msg); - return 0; -} - -void zpci_teardown_msi_irq(struct zpci_dev *zdev, struct msi_desc *msi) -{ - int irq = msi->irq & ZPCI_MSI_MASK; - struct msi_map *map; - - msi->msg.address_lo = 0; - msi->msg.address_hi = 0; - msi->msg.data = 0; - msi->irq = 0; - zpci_msi_set_mask_bits(msi, 1, 1); - - spin_lock(&msi_map_lock); - map = zdev->msi_map[irq]; - hlist_del_rcu(&map->msi_chain); - kfree(map); - zdev->msi_map[irq] = NULL; - spin_unlock(&msi_map_lock); -} - -/* - * The msi hash table has 256 entries which is good for 4..20 - * devices (a typical device allocates 10 + CPUs MSI's). Maybe make - * the hash table size adjustable later. - */ -int __init zpci_msihash_init(void) -{ - unsigned int i; - - msi_hash = kmalloc(MSI_HASH_BUCKETS * sizeof(*msi_hash), GFP_KERNEL); - if (!msi_hash) - return -ENOMEM; - - for (i = 0; i < MSI_HASH_BUCKETS; i++) - INIT_HLIST_HEAD(&msi_hash[i]); - return 0; -} - -void __init zpci_msihash_exit(void) -{ - kfree(msi_hash); -} diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c index e99a2557f186..cf8a12ff733b 100644 --- a/arch/s390/pci/pci_sysfs.c +++ b/arch/s390/pci/pci_sysfs.c @@ -48,11 +48,38 @@ static ssize_t show_pfgid(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL); +static void recover_callback(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct zpci_dev *zdev = get_zdev(pdev); + int ret; + + pci_stop_and_remove_bus_device(pdev); + ret = zpci_disable_device(zdev); + if (ret) + return; + + ret = zpci_enable_device(zdev); + if (ret) + return; + + pci_rescan_bus(zdev->bus); +} + +static ssize_t store_recover(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int rc = device_schedule_callback(dev, recover_callback); + return rc ? rc : count; +} +static DEVICE_ATTR(recover, S_IWUSR, NULL, store_recover); + static struct device_attribute *zpci_dev_attrs[] = { &dev_attr_function_id, &dev_attr_function_handle, &dev_attr_pchid, &dev_attr_pfgid, + &dev_attr_recover, NULL, }; diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b32ebf92b0ce..67e00740531c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -16,6 +16,7 @@ config X86_64 def_bool y depends on 64BIT select X86_DEV_DMA_OPS + select ARCH_USE_CMPXCHG_LOCKREF ### Arch settings config X86 diff --git a/arch/x86/include/asm/bootparam_utils.h b/arch/x86/include/asm/bootparam_utils.h index 653668d140f9..4a8cb8d7cbd5 100644 --- a/arch/x86/include/asm/bootparam_utils.h +++ b/arch/x86/include/asm/bootparam_utils.h @@ -35,9 +35,9 @@ static void sanitize_boot_params(struct boot_params *boot_params) */ if (boot_params->sentinel) { /* fields in boot_params are left uninitialized, clear them */ - memset(&boot_params->olpc_ofw_header, 0, + memset(&boot_params->ext_ramdisk_image, 0, (char *)&boot_params->efi_info - - (char *)&boot_params->olpc_ofw_header); + (char *)&boot_params->ext_ramdisk_image); memset(&boot_params->kbd_status, 0, (char *)&boot_params->hdr - (char *)&boot_params->kbd_status); diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h index 50e5c58ced23..4c019179a57d 100644 --- a/arch/x86/include/asm/microcode_amd.h +++ b/arch/x86/include/asm/microcode_amd.h @@ -59,7 +59,7 @@ static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table, extern int __apply_microcode_amd(struct microcode_amd *mc_amd); extern int apply_microcode_amd(int cpu); -extern enum ucode_state load_microcode_amd(int cpu, const u8 *data, size_t size); +extern enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size); #ifdef CONFIG_MICROCODE_AMD_EARLY #ifdef CONFIG_X86_32 diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h index e3ddd7db723f..e0e668422c75 100644 --- a/arch/x86/include/asm/spinlock.h +++ b/arch/x86/include/asm/spinlock.h @@ -34,6 +34,11 @@ # define UNLOCK_LOCK_PREFIX #endif +static __always_inline int arch_spin_value_unlocked(arch_spinlock_t lock) +{ + return lock.tickets.head == lock.tickets.tail; +} + /* * Ticket locks are conceptually two parts, one indicating the current head of * the queue, and the other indicating the current tail. The lock is acquired diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index f654ecefea5b..08a089043ccf 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -512,7 +512,7 @@ static void early_init_amd(struct cpuinfo_x86 *c) static const int amd_erratum_383[]; static const int amd_erratum_400[]; -static bool cpu_has_amd_erratum(const int *erratum); +static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum); static void init_amd(struct cpuinfo_x86 *c) { @@ -729,11 +729,11 @@ static void init_amd(struct cpuinfo_x86 *c) value &= ~(1ULL << 24); wrmsrl_safe(MSR_AMD64_BU_CFG2, value); - if (cpu_has_amd_erratum(amd_erratum_383)) + if (cpu_has_amd_erratum(c, amd_erratum_383)) set_cpu_bug(c, X86_BUG_AMD_TLB_MMATCH); } - if (cpu_has_amd_erratum(amd_erratum_400)) + if (cpu_has_amd_erratum(c, amd_erratum_400)) set_cpu_bug(c, X86_BUG_AMD_APIC_C1E); rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy); @@ -878,23 +878,13 @@ static const int amd_erratum_400[] = static const int amd_erratum_383[] = AMD_OSVW_ERRATUM(3, AMD_MODEL_RANGE(0x10, 0, 0, 0xff, 0xf)); -static bool cpu_has_amd_erratum(const int *erratum) + +static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum) { - struct cpuinfo_x86 *cpu = __this_cpu_ptr(&cpu_info); int osvw_id = *erratum++; u32 range; u32 ms; - /* - * If called early enough that current_cpu_data hasn't been initialized - * yet, fall back to boot_cpu_data. - */ - if (cpu->x86 == 0) - cpu = &boot_cpu_data; - - if (cpu->x86_vendor != X86_VENDOR_AMD) - return false; - if (osvw_id >= 0 && osvw_id < 65536 && cpu_has(cpu, X86_FEATURE_OSVW)) { u64 osvw_len; diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 7a0adb7ee433..7123b5df479d 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -145,10 +145,9 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig) return 0; } -static unsigned int verify_patch_size(int cpu, u32 patch_size, +static unsigned int verify_patch_size(u8 family, u32 patch_size, unsigned int size) { - struct cpuinfo_x86 *c = &cpu_data(cpu); u32 max_size; #define F1XH_MPB_MAX_SIZE 2048 @@ -156,7 +155,7 @@ static unsigned int verify_patch_size(int cpu, u32 patch_size, #define F15H_MPB_MAX_SIZE 4096 #define F16H_MPB_MAX_SIZE 3458 - switch (c->x86) { + switch (family) { case 0x14: max_size = F14H_MPB_MAX_SIZE; break; @@ -277,9 +276,8 @@ static void cleanup(void) * driver cannot continue functioning normally. In such cases, we tear * down everything we've used up so far and exit. */ -static int verify_and_add_patch(unsigned int cpu, u8 *fw, unsigned int leftover) +static int verify_and_add_patch(u8 family, u8 *fw, unsigned int leftover) { - struct cpuinfo_x86 *c = &cpu_data(cpu); struct microcode_header_amd *mc_hdr; struct ucode_patch *patch; unsigned int patch_size, crnt_size, ret; @@ -299,7 +297,7 @@ static int verify_and_add_patch(unsigned int cpu, u8 *fw, unsigned int leftover) /* check if patch is for the current family */ proc_fam = ((proc_fam >> 8) & 0xf) + ((proc_fam >> 20) & 0xff); - if (proc_fam != c->x86) + if (proc_fam != family) return crnt_size; if (mc_hdr->nb_dev_id || mc_hdr->sb_dev_id) { @@ -308,7 +306,7 @@ static int verify_and_add_patch(unsigned int cpu, u8 *fw, unsigned int leftover) return crnt_size; } - ret = verify_patch_size(cpu, patch_size, leftover); + ret = verify_patch_size(family, patch_size, leftover); if (!ret) { pr_err("Patch-ID 0x%08x: size mismatch.\n", mc_hdr->patch_id); return crnt_size; @@ -339,7 +337,8 @@ static int verify_and_add_patch(unsigned int cpu, u8 *fw, unsigned int leftover) return crnt_size; } -static enum ucode_state __load_microcode_amd(int cpu, const u8 *data, size_t size) +static enum ucode_state __load_microcode_amd(u8 family, const u8 *data, + size_t size) { enum ucode_state ret = UCODE_ERROR; unsigned int leftover; @@ -362,7 +361,7 @@ static enum ucode_state __load_microcode_amd(int cpu, const u8 *data, size_t siz } while (leftover) { - crnt_size = verify_and_add_patch(cpu, fw, leftover); + crnt_size = verify_and_add_patch(family, fw, leftover); if (crnt_size < 0) return ret; @@ -373,22 +372,22 @@ static enum ucode_state __load_microcode_amd(int cpu, const u8 *data, size_t siz return UCODE_OK; } -enum ucode_state load_microcode_amd(int cpu, const u8 *data, size_t size) +enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size) { enum ucode_state ret; /* free old equiv table */ free_equiv_cpu_table(); - ret = __load_microcode_amd(cpu, data, size); + ret = __load_microcode_amd(family, data, size); if (ret != UCODE_OK) cleanup(); #if defined(CONFIG_MICROCODE_AMD_EARLY) && defined(CONFIG_X86_32) /* save BSP's matching patch for early load */ - if (cpu_data(cpu).cpu_index == boot_cpu_data.cpu_index) { - struct ucode_patch *p = find_patch(cpu); + if (cpu_data(smp_processor_id()).cpu_index == boot_cpu_data.cpu_index) { + struct ucode_patch *p = find_patch(smp_processor_id()); if (p) { memset(amd_bsp_mpb, 0, MPB_MAX_SIZE); memcpy(amd_bsp_mpb, p->data, min_t(u32, ksize(p->data), @@ -441,7 +440,7 @@ static enum ucode_state request_microcode_amd(int cpu, struct device *device, goto fw_release; } - ret = load_microcode_amd(cpu, fw->data, fw->size); + ret = load_microcode_amd(c->x86, fw->data, fw->size); fw_release: release_firmware(fw); diff --git a/arch/x86/kernel/microcode_amd_early.c b/arch/x86/kernel/microcode_amd_early.c index 1d14ffee5749..6073104ccaa3 100644 --- a/arch/x86/kernel/microcode_amd_early.c +++ b/arch/x86/kernel/microcode_amd_early.c @@ -238,25 +238,17 @@ static void __init collect_cpu_sig_on_bsp(void *arg) uci->cpu_sig.sig = cpuid_eax(0x00000001); } #else -static void collect_cpu_info_amd_early(struct cpuinfo_x86 *c, - struct ucode_cpu_info *uci) +void load_ucode_amd_ap(void) { + unsigned int cpu = smp_processor_id(); + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; u32 rev, eax; rdmsr(MSR_AMD64_PATCH_LEVEL, rev, eax); eax = cpuid_eax(0x00000001); - uci->cpu_sig.sig = eax; uci->cpu_sig.rev = rev; - c->microcode = rev; - c->x86 = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff); -} - -void load_ucode_amd_ap(void) -{ - unsigned int cpu = smp_processor_id(); - - collect_cpu_info_amd_early(&cpu_data(cpu), ucode_cpu_info + cpu); + uci->cpu_sig.sig = eax; if (cpu && !ucode_loaded) { void *ucode; @@ -265,8 +257,10 @@ void load_ucode_amd_ap(void) return; ucode = (void *)(initrd_start + ucode_offset); - if (load_microcode_amd(0, ucode, ucode_size) != UCODE_OK) + eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff); + if (load_microcode_amd(eax, ucode, ucode_size) != UCODE_OK) return; + ucode_loaded = true; } @@ -278,6 +272,8 @@ int __init save_microcode_in_initrd_amd(void) { enum ucode_state ret; void *ucode; + u32 eax; + #ifdef CONFIG_X86_32 unsigned int bsp = boot_cpu_data.cpu_index; struct ucode_cpu_info *uci = ucode_cpu_info + bsp; @@ -293,7 +289,10 @@ int __init save_microcode_in_initrd_amd(void) return 0; ucode = (void *)(initrd_start + ucode_offset); - ret = load_microcode_amd(0, ucode, ucode_size); + eax = cpuid_eax(0x00000001); + eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff); + + ret = load_microcode_amd(eax, ucode, ucode_size); if (ret != UCODE_OK) return -EINVAL; diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c index 48f8375e4c6b..30277e27431a 100644 --- a/arch/x86/kernel/sys_x86_64.c +++ b/arch/x86/kernel/sys_x86_64.c @@ -101,7 +101,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin, *begin = new_begin; } } else { - *begin = mmap_legacy_base(); + *begin = current->mm->mmap_legacy_base; *end = TASK_SIZE; } } diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 2ec29ac78ae6..04664cdb7fda 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -78,8 +78,8 @@ __ref void *alloc_low_pages(unsigned int num) return __va(pfn << PAGE_SHIFT); } -/* need 4 4k for initial PMD_SIZE, 4k for 0-ISA_END_ADDRESS */ -#define INIT_PGT_BUF_SIZE (5 * PAGE_SIZE) +/* need 3 4k for initial PMD_SIZE, 3 4k for 0-ISA_END_ADDRESS */ +#define INIT_PGT_BUF_SIZE (6 * PAGE_SIZE) RESERVE_BRK(early_pgt_alloc, INIT_PGT_BUF_SIZE); void __init early_alloc_pgt_buf(void) { diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c index f63778cb2363..25e7e1372bb2 100644 --- a/arch/x86/mm/mmap.c +++ b/arch/x86/mm/mmap.c @@ -98,7 +98,7 @@ static unsigned long mmap_base(void) * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64 * does, but not when emulating X86_32 */ -unsigned long mmap_legacy_base(void) +static unsigned long mmap_legacy_base(void) { if (mmap_is_ia32()) return TASK_UNMAPPED_BASE; @@ -112,11 +112,13 @@ unsigned long mmap_legacy_base(void) */ void arch_pick_mmap_layout(struct mm_struct *mm) { + mm->mmap_legacy_base = mmap_legacy_base(); + mm->mmap_base = mmap_base(); + if (mmap_is_legacy()) { - mm->mmap_base = mmap_legacy_base(); + mm->mmap_base = mm->mmap_legacy_base; mm->get_unmapped_area = arch_get_unmapped_area; } else { - mm->mmap_base = mmap_base(); mm->get_unmapped_area = arch_get_unmapped_area_topdown; } } diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 056d11faef21..8f3eea6b80c5 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -313,6 +313,17 @@ static void xen_align_and_add_e820_region(u64 start, u64 size, int type) e820_add_region(start, end - start, type); } +void xen_ignore_unusable(struct e820entry *list, size_t map_size) +{ + struct e820entry *entry; + unsigned int i; + + for (i = 0, entry = list; i < map_size; i++, entry++) { + if (entry->type == E820_UNUSABLE) + entry->type = E820_RAM; + } +} + /** * machine_specific_memory_setup - Hook for machine specific memory setup. **/ @@ -353,6 +364,17 @@ char * __init xen_memory_setup(void) } BUG_ON(rc); + /* + * Xen won't allow a 1:1 mapping to be created to UNUSABLE + * regions, so if we're using the machine memory map leave the + * region as RAM as it is in the pseudo-physical map. + * + * UNUSABLE regions in domUs are not handled and will need + * a patch in the future. + */ + if (xen_initial_domain()) + xen_ignore_unusable(map, memmap.nr_entries); + /* Make sure the Xen-supplied memory map is well-ordered. */ sanitize_e820_map(map, memmap.nr_entries, &memmap.nr_entries); diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index ca92754eb846..b81c88e51daa 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -694,8 +694,15 @@ static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus) static int xen_hvm_cpu_up(unsigned int cpu, struct task_struct *tidle) { int rc; - rc = native_cpu_up(cpu, tidle); - WARN_ON (xen_smp_intr_init(cpu)); + /* + * xen_smp_intr_init() needs to run before native_cpu_up() + * so that IPI vectors are set up on the booting CPU before + * it is marked online in native_cpu_up(). + */ + rc = xen_smp_intr_init(cpu); + WARN_ON(rc); + if (!rc) + rc = native_cpu_up(cpu, tidle); return rc; } diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index e1284b8dc6ee..3270d3c8ba4e 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -908,9 +908,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) device->cap._DDC = 1; } - if (acpi_video_init_brightness(device)) - return; - if (acpi_video_backlight_support()) { struct backlight_properties props; struct pci_dev *pdev; @@ -920,6 +917,9 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) static int count = 0; char *name; + result = acpi_video_init_brightness(device); + if (result) + return; name = kasprintf(GFP_KERNEL, "acpi_video%d", count); if (!name) return; @@ -979,11 +979,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) if (result) printk(KERN_ERR PREFIX "Create sysfs link\n"); - } else { - /* Remove the brightness object. */ - kfree(device->brightness->levels); - kfree(device->brightness); - device->brightness = NULL; } } diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c index 1c41722bb7e2..20fd337a5731 100644 --- a/drivers/ata/libata-pmp.c +++ b/drivers/ata/libata-pmp.c @@ -289,24 +289,24 @@ static int sata_pmp_configure(struct ata_device *dev, int print_info) /* Disable sending Early R_OK. * With "cached read" HDD testing and multiple ports busy on a SATA - * host controller, 3726 PMP will very rarely drop a deferred + * host controller, 3x26 PMP will very rarely drop a deferred * R_OK that was intended for the host. Symptom will be all * 5 drives under test will timeout, get reset, and recover. */ - if (vendor == 0x1095 && devid == 0x3726) { + if (vendor == 0x1095 && (devid == 0x3726 || devid == 0x3826)) { u32 reg; err_mask = sata_pmp_read(&ap->link, PMP_GSCR_SII_POL, ®); if (err_mask) { rc = -EIO; - reason = "failed to read Sil3726 Private Register"; + reason = "failed to read Sil3x26 Private Register"; goto fail; } reg &= ~0x1; err_mask = sata_pmp_write(&ap->link, PMP_GSCR_SII_POL, reg); if (err_mask) { rc = -EIO; - reason = "failed to write Sil3726 Private Register"; + reason = "failed to write Sil3x26 Private Register"; goto fail; } } @@ -383,8 +383,8 @@ static void sata_pmp_quirks(struct ata_port *ap) u16 devid = sata_pmp_gscr_devid(gscr); struct ata_link *link; - if (vendor == 0x1095 && devid == 0x3726) { - /* sil3726 quirks */ + if (vendor == 0x1095 && (devid == 0x3726 || devid == 0x3826)) { + /* sil3x26 quirks */ ata_for_each_link(link, ap, EDGE) { /* link reports offline after LPM */ link->flags |= ATA_LFLAG_NO_LPM; diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index 19720a0a4a65..851bd3f43ac6 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -293,6 +293,7 @@ static void fsl_sata_set_irq_coalescing(struct ata_host *host, { struct sata_fsl_host_priv *host_priv = host->private_data; void __iomem *hcr_base = host_priv->hcr_base; + unsigned long flags; if (count > ICC_MAX_INT_COUNT_THRESHOLD) count = ICC_MAX_INT_COUNT_THRESHOLD; @@ -305,12 +306,12 @@ static void fsl_sata_set_irq_coalescing(struct ata_host *host, (count > ICC_MIN_INT_COUNT_THRESHOLD)) ticks = ICC_SAFE_INT_TICKS; - spin_lock(&host->lock); + spin_lock_irqsave(&host->lock, flags); iowrite32((count << 24 | ticks), hcr_base + ICC); intr_coalescing_count = count; intr_coalescing_ticks = ticks; - spin_unlock(&host->lock); + spin_unlock_irqrestore(&host->lock, flags); DPRINTK("interrupt coalescing, count = 0x%x, ticks = %x\n", intr_coalescing_count, intr_coalescing_ticks); diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c index d047d92a456f..e9a4f46d962e 100644 --- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -86,11 +86,11 @@ struct ecx_plat_data { #define SGPIO_SIGNALS 3 #define ECX_ACTIVITY_BITS 0x300000 -#define ECX_ACTIVITY_SHIFT 2 +#define ECX_ACTIVITY_SHIFT 0 #define ECX_LOCATE_BITS 0x80000 #define ECX_LOCATE_SHIFT 1 #define ECX_FAULT_BITS 0x400000 -#define ECX_FAULT_SHIFT 0 +#define ECX_FAULT_SHIFT 2 static inline int sgpio_bit_shift(struct ecx_plat_data *pdata, u32 port, u32 shift) { diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 2b7813ec6d02..ec386ee9cb22 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -141,6 +141,8 @@ static ssize_t show_mem_removable(struct device *dev, container_of(dev, struct memory_block, dev); for (i = 0; i < sections_per_block; i++) { + if (!present_section_nr(mem->start_section_nr + i)) + continue; pfn = section_nr_to_pfn(mem->start_section_nr + i); ret &= is_mem_section_removable(pfn, PAGES_PER_SECTION); } diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 29c83160ca29..57f777835d97 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -128,9 +128,6 @@ struct regmap { void *cache; u32 cache_dirty; - unsigned long *cache_present; - unsigned int cache_present_nbits; - struct reg_default *patch; int patch_regs; @@ -203,6 +200,7 @@ int regcache_write(struct regmap *map, unsigned int reg, unsigned int value); int regcache_sync(struct regmap *map); int regcache_sync_block(struct regmap *map, void *block, + unsigned long *cache_present, unsigned int block_base, unsigned int start, unsigned int end); @@ -218,16 +216,6 @@ unsigned int regcache_get_val(struct regmap *map, const void *base, bool regcache_set_val(struct regmap *map, void *base, unsigned int idx, unsigned int val); int regcache_lookup_reg(struct regmap *map, unsigned int reg); -int regcache_set_reg_present(struct regmap *map, unsigned int reg); - -static inline bool regcache_reg_present(struct regmap *map, unsigned int reg) -{ - if (!map->cache_present) - return true; - if (reg > map->cache_present_nbits) - return false; - return map->cache_present[BIT_WORD(reg)] & BIT_MASK(reg); -} int _regmap_raw_write(struct regmap *map, unsigned int reg, const void *val, size_t val_len, bool async); diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 5c1435c4e210..930cad4e5df8 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -29,6 +29,8 @@ struct regcache_rbtree_node { unsigned int base_reg; /* block of adjacent registers */ void *block; + /* Which registers are present */ + long *cache_present; /* number of registers available in the block */ unsigned int blklen; } __attribute__ ((packed)); @@ -57,6 +59,7 @@ static void regcache_rbtree_set_register(struct regmap *map, struct regcache_rbtree_node *rbnode, unsigned int idx, unsigned int val) { + set_bit(idx, rbnode->cache_present); regcache_set_val(map, rbnode->block, idx, val); } @@ -146,13 +149,13 @@ static int rbtree_show(struct seq_file *s, void *ignored) map->lock(map->lock_arg); mem_size = sizeof(*rbtree_ctx); - mem_size += BITS_TO_LONGS(map->cache_present_nbits) * sizeof(long); for (node = rb_first(&rbtree_ctx->root); node != NULL; node = rb_next(node)) { n = container_of(node, struct regcache_rbtree_node, node); mem_size += sizeof(*n); mem_size += (n->blklen * map->cache_word_size); + mem_size += BITS_TO_LONGS(n->blklen) * sizeof(long); regcache_rbtree_get_base_top_reg(map, n, &base, &top); this_registers = ((top - base) / map->reg_stride) + 1; @@ -245,6 +248,7 @@ static int regcache_rbtree_exit(struct regmap *map) rbtree_node = rb_entry(next, struct regcache_rbtree_node, node); next = rb_next(&rbtree_node->node); rb_erase(&rbtree_node->node, &rbtree_ctx->root); + kfree(rbtree_node->cache_present); kfree(rbtree_node->block); kfree(rbtree_node); } @@ -265,7 +269,7 @@ static int regcache_rbtree_read(struct regmap *map, rbnode = regcache_rbtree_lookup(map, reg); if (rbnode) { reg_tmp = (reg - rbnode->base_reg) / map->reg_stride; - if (!regcache_reg_present(map, reg)) + if (!test_bit(reg_tmp, rbnode->cache_present)) return -ENOENT; *value = regcache_rbtree_get_register(map, rbnode, reg_tmp); } else { @@ -278,27 +282,45 @@ static int regcache_rbtree_read(struct regmap *map, static int regcache_rbtree_insert_to_block(struct regmap *map, struct regcache_rbtree_node *rbnode, - unsigned int pos, unsigned int reg, + unsigned int base_reg, + unsigned int top_reg, + unsigned int reg, unsigned int value) { + unsigned int blklen; + unsigned int pos, offset; + unsigned long *present; u8 *blk; + blklen = (top_reg - base_reg) / map->reg_stride + 1; + pos = (reg - base_reg) / map->reg_stride; + offset = (rbnode->base_reg - base_reg) / map->reg_stride; + blk = krealloc(rbnode->block, - (rbnode->blklen + 1) * map->cache_word_size, + blklen * map->cache_word_size, GFP_KERNEL); if (!blk) return -ENOMEM; + present = krealloc(rbnode->cache_present, + BITS_TO_LONGS(blklen) * sizeof(*present), GFP_KERNEL); + if (!present) { + kfree(blk); + return -ENOMEM; + } + /* insert the register value in the correct place in the rbnode block */ - memmove(blk + (pos + 1) * map->cache_word_size, - blk + pos * map->cache_word_size, - (rbnode->blklen - pos) * map->cache_word_size); + if (pos == 0) { + memmove(blk + offset * map->cache_word_size, + blk, rbnode->blklen * map->cache_word_size); + bitmap_shift_right(present, present, offset, blklen); + } /* update the rbnode block, its size and the base register */ rbnode->block = blk; - rbnode->blklen++; - if (!pos) - rbnode->base_reg = reg; + rbnode->blklen = blklen; + rbnode->base_reg = base_reg; + rbnode->cache_present = present; regcache_rbtree_set_register(map, rbnode, pos, value); return 0; @@ -325,25 +347,34 @@ regcache_rbtree_node_alloc(struct regmap *map, unsigned int reg) if (i != map->rd_table->n_yes_ranges) { range = &map->rd_table->yes_ranges[i]; - rbnode->blklen = range->range_max - range->range_min - + 1; + rbnode->blklen = (range->range_max - range->range_min) / + map->reg_stride + 1; rbnode->base_reg = range->range_min; } } if (!rbnode->blklen) { - rbnode->blklen = sizeof(*rbnode); + rbnode->blklen = 1; rbnode->base_reg = reg; } rbnode->block = kmalloc(rbnode->blklen * map->cache_word_size, GFP_KERNEL); - if (!rbnode->block) { - kfree(rbnode); - return NULL; - } + if (!rbnode->block) + goto err_free; + + rbnode->cache_present = kzalloc(BITS_TO_LONGS(rbnode->blklen) * + sizeof(*rbnode->cache_present), GFP_KERNEL); + if (!rbnode->cache_present) + goto err_free_block; return rbnode; + +err_free_block: + kfree(rbnode->block); +err_free: + kfree(rbnode); + return NULL; } static int regcache_rbtree_write(struct regmap *map, unsigned int reg, @@ -353,15 +384,9 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, struct regcache_rbtree_node *rbnode, *rbnode_tmp; struct rb_node *node; unsigned int reg_tmp; - unsigned int pos; - int i; int ret; rbtree_ctx = map->cache; - /* update the reg_present bitmap, make space if necessary */ - ret = regcache_set_reg_present(map, reg); - if (ret < 0) - return ret; /* if we can't locate it in the cached rbnode we'll have * to traverse the rbtree looking for it. @@ -371,30 +396,43 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, reg_tmp = (reg - rbnode->base_reg) / map->reg_stride; regcache_rbtree_set_register(map, rbnode, reg_tmp, value); } else { + unsigned int base_reg, top_reg; + unsigned int new_base_reg, new_top_reg; + unsigned int min, max; + unsigned int max_dist; + + max_dist = map->reg_stride * sizeof(*rbnode_tmp) / + map->cache_word_size; + if (reg < max_dist) + min = 0; + else + min = reg - max_dist; + max = reg + max_dist; + /* look for an adjacent register to the one we are about to add */ for (node = rb_first(&rbtree_ctx->root); node; node = rb_next(node)) { rbnode_tmp = rb_entry(node, struct regcache_rbtree_node, node); - for (i = 0; i < rbnode_tmp->blklen; i++) { - reg_tmp = rbnode_tmp->base_reg + - (i * map->reg_stride); - if (abs(reg_tmp - reg) != map->reg_stride) - continue; - /* decide where in the block to place our register */ - if (reg_tmp + map->reg_stride == reg) - pos = i + 1; - else - pos = i; - ret = regcache_rbtree_insert_to_block(map, - rbnode_tmp, - pos, reg, - value); - if (ret) - return ret; - rbtree_ctx->cached_rbnode = rbnode_tmp; - return 0; + + regcache_rbtree_get_base_top_reg(map, rbnode_tmp, + &base_reg, &top_reg); + + if (base_reg <= max && top_reg >= min) { + new_base_reg = min(reg, base_reg); + new_top_reg = max(reg, top_reg); + } else { + continue; } + + ret = regcache_rbtree_insert_to_block(map, rbnode_tmp, + new_base_reg, + new_top_reg, reg, + value); + if (ret) + return ret; + rbtree_ctx->cached_rbnode = rbnode_tmp; + return 0; } /* We did not manage to find a place to insert it in @@ -418,30 +456,34 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min, struct regcache_rbtree_ctx *rbtree_ctx; struct rb_node *node; struct regcache_rbtree_node *rbnode; + unsigned int base_reg, top_reg; + unsigned int start, end; int ret; - int base, end; rbtree_ctx = map->cache; for (node = rb_first(&rbtree_ctx->root); node; node = rb_next(node)) { rbnode = rb_entry(node, struct regcache_rbtree_node, node); - if (rbnode->base_reg > max) + regcache_rbtree_get_base_top_reg(map, rbnode, &base_reg, + &top_reg); + if (base_reg > max) break; - if (rbnode->base_reg + rbnode->blklen < min) + if (top_reg < min) continue; - if (min > rbnode->base_reg) - base = min - rbnode->base_reg; + if (min > base_reg) + start = (min - base_reg) / map->reg_stride; else - base = 0; + start = 0; - if (max < rbnode->base_reg + rbnode->blklen) - end = max - rbnode->base_reg + 1; + if (max < top_reg) + end = (max - base_reg) / map->reg_stride + 1; else end = rbnode->blklen; - ret = regcache_sync_block(map, rbnode->block, rbnode->base_reg, - base, end); + ret = regcache_sync_block(map, rbnode->block, + rbnode->cache_present, + rbnode->base_reg, start, end); if (ret != 0) return ret; } @@ -449,6 +491,42 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min, return regmap_async_complete(map); } +static int regcache_rbtree_drop(struct regmap *map, unsigned int min, + unsigned int max) +{ + struct regcache_rbtree_ctx *rbtree_ctx; + struct regcache_rbtree_node *rbnode; + struct rb_node *node; + unsigned int base_reg, top_reg; + unsigned int start, end; + + rbtree_ctx = map->cache; + for (node = rb_first(&rbtree_ctx->root); node; node = rb_next(node)) { + rbnode = rb_entry(node, struct regcache_rbtree_node, node); + + regcache_rbtree_get_base_top_reg(map, rbnode, &base_reg, + &top_reg); + if (base_reg > max) + break; + if (top_reg < min) + continue; + + if (min > base_reg) + start = (min - base_reg) / map->reg_stride; + else + start = 0; + + if (max < top_reg) + end = (max - base_reg) / map->reg_stride + 1; + else + end = rbnode->blklen; + + bitmap_clear(rbnode->cache_present, start, end - start); + } + + return 0; +} + struct regcache_ops regcache_rbtree_ops = { .type = REGCACHE_RBTREE, .name = "rbtree", @@ -456,5 +534,6 @@ struct regcache_ops regcache_rbtree_ops = { .exit = regcache_rbtree_exit, .read = regcache_rbtree_read, .write = regcache_rbtree_write, - .sync = regcache_rbtree_sync + .sync = regcache_rbtree_sync, + .drop = regcache_rbtree_drop, }; diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 3455f833e473..d6c2d691b6e8 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -121,8 +121,6 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) map->reg_defaults_raw = config->reg_defaults_raw; map->cache_word_size = DIV_ROUND_UP(config->val_bits, 8); map->cache_size_raw = map->cache_word_size * config->num_reg_defaults_raw; - map->cache_present = NULL; - map->cache_present_nbits = 0; map->cache = NULL; map->cache_ops = cache_types[i]; @@ -181,7 +179,6 @@ void regcache_exit(struct regmap *map) BUG_ON(!map->cache_ops); - kfree(map->cache_present); kfree(map->reg_defaults); if (map->cache_free) kfree(map->reg_defaults_raw); @@ -241,9 +238,6 @@ int regcache_write(struct regmap *map, BUG_ON(!map->cache_ops); - if (!regmap_writeable(map, reg)) - return -EIO; - if (!regmap_volatile(map, reg)) return map->cache_ops->write(map, reg, value); @@ -410,22 +404,16 @@ EXPORT_SYMBOL_GPL(regcache_sync_region); int regcache_drop_region(struct regmap *map, unsigned int min, unsigned int max) { - unsigned int reg; int ret = 0; - if (!map->cache_present && !(map->cache_ops && map->cache_ops->drop)) + if (!map->cache_ops || !map->cache_ops->drop) return -EINVAL; map->lock(map->lock_arg); trace_regcache_drop_region(map->dev, min, max); - if (map->cache_present) - for (reg = min; reg < max + 1; reg++) - clear_bit(reg, map->cache_present); - - if (map->cache_ops && map->cache_ops->drop) - ret = map->cache_ops->drop(map, min, max); + ret = map->cache_ops->drop(map, min, max); map->unlock(map->lock_arg); @@ -493,42 +481,6 @@ void regcache_cache_bypass(struct regmap *map, bool enable) } EXPORT_SYMBOL_GPL(regcache_cache_bypass); -int regcache_set_reg_present(struct regmap *map, unsigned int reg) -{ - unsigned long *cache_present; - unsigned int cache_present_size; - unsigned int nregs; - int i; - - nregs = reg + 1; - cache_present_size = BITS_TO_LONGS(nregs); - cache_present_size *= sizeof(long); - - if (!map->cache_present) { - cache_present = kmalloc(cache_present_size, GFP_KERNEL); - if (!cache_present) - return -ENOMEM; - bitmap_zero(cache_present, nregs); - map->cache_present = cache_present; - map->cache_present_nbits = nregs; - } - - if (nregs > map->cache_present_nbits) { - cache_present = krealloc(map->cache_present, - cache_present_size, GFP_KERNEL); - if (!cache_present) - return -ENOMEM; - for (i = 0; i < nregs; i++) - if (i >= map->cache_present_nbits) - clear_bit(i, cache_present); - map->cache_present = cache_present; - map->cache_present_nbits = nregs; - } - - set_bit(reg, map->cache_present); - return 0; -} - bool regcache_set_val(struct regmap *map, void *base, unsigned int idx, unsigned int val) { @@ -620,7 +572,16 @@ int regcache_lookup_reg(struct regmap *map, unsigned int reg) return -ENOENT; } +static bool regcache_reg_present(unsigned long *cache_present, unsigned int idx) +{ + if (!cache_present) + return true; + + return test_bit(idx, cache_present); +} + static int regcache_sync_block_single(struct regmap *map, void *block, + unsigned long *cache_present, unsigned int block_base, unsigned int start, unsigned int end) { @@ -630,7 +591,7 @@ static int regcache_sync_block_single(struct regmap *map, void *block, for (i = start; i < end; i++) { regtmp = block_base + (i * map->reg_stride); - if (!regcache_reg_present(map, regtmp)) + if (!regcache_reg_present(cache_present, i)) continue; val = regcache_get_val(map, block, i); @@ -681,6 +642,7 @@ static int regcache_sync_block_raw_flush(struct regmap *map, const void **data, } static int regcache_sync_block_raw(struct regmap *map, void *block, + unsigned long *cache_present, unsigned int block_base, unsigned int start, unsigned int end) { @@ -693,7 +655,7 @@ static int regcache_sync_block_raw(struct regmap *map, void *block, for (i = start; i < end; i++) { regtmp = block_base + (i * map->reg_stride); - if (!regcache_reg_present(map, regtmp)) { + if (!regcache_reg_present(cache_present, i)) { ret = regcache_sync_block_raw_flush(map, &data, base, regtmp); if (ret != 0) @@ -724,13 +686,14 @@ static int regcache_sync_block_raw(struct regmap *map, void *block, } int regcache_sync_block(struct regmap *map, void *block, + unsigned long *cache_present, unsigned int block_base, unsigned int start, unsigned int end) { if (regmap_can_raw_write(map)) - return regcache_sync_block_raw(map, block, block_base, - start, end); + return regcache_sync_block_raw(map, block, cache_present, + block_base, start, end); else - return regcache_sync_block_single(map, block, block_base, - start, end); + return regcache_sync_block_single(map, block, cache_present, + block_base, start, end); } diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 53495753fbdb..6c2652a8ad50 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -85,8 +85,8 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map, unsigned int reg_offset; /* Suppress the cache if we're using a subrange */ - if (from) - return from; + if (base) + return base; /* * If we don't have a cache build one so we don't have to do a diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 1643e889bafc..d10456ffd811 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -418,6 +418,31 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, reg, ret); goto err_alloc; } + + if (!chip->init_ack_masked) + continue; + + /* Ack masked but set interrupts */ + reg = chip->status_base + + (i * map->reg_stride * d->irq_reg_stride); + ret = regmap_read(map, reg, &d->status_buf[i]); + if (ret != 0) { + dev_err(map->dev, "Failed to read IRQ status: %d\n", + ret); + goto err_alloc; + } + + if (d->status_buf[i] && chip->ack_base) { + reg = chip->ack_base + + (i * map->reg_stride * d->irq_reg_stride); + ret = regmap_write(map, reg, + d->status_buf[i] & d->mask_buf[i]); + if (ret != 0) { + dev_err(map->dev, "Failed to ack 0x%x: %d\n", + reg, ret); + goto err_alloc; + } + } } /* Wake is disabled by default */ diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index e0d0c7d8a5c5..7d689a15c500 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -303,6 +303,7 @@ static void regmap_unlock_mutex(void *__map) } static void regmap_lock_spinlock(void *__map) +__acquires(&map->spinlock) { struct regmap *map = __map; unsigned long flags; @@ -312,6 +313,7 @@ static void regmap_lock_spinlock(void *__map) } static void regmap_unlock_spinlock(void *__map) +__releases(&map->spinlock) { struct regmap *map = __map; spin_unlock_irqrestore(&map->spinlock, map->spinlock_flags); @@ -687,6 +689,10 @@ skip_format_initialization: unsigned win_max = win_min + config->ranges[j].window_len - 1; + /* Allow data window inside its own virtual range */ + if (j == i) + continue; + if (range_cfg->range_min <= sel_reg && sel_reg <= range_cfg->range_max) { dev_err(map->dev, @@ -1261,6 +1267,9 @@ int _regmap_write(struct regmap *map, unsigned int reg, int ret; void *context = _regmap_map_get_context(map); + if (!regmap_writeable(map, reg)) + return -EIO; + if (!map->cache_bypass && !map->defer_caching) { ret = regcache_write(map, reg, val); if (ret != 0) @@ -1888,13 +1897,10 @@ EXPORT_SYMBOL_GPL(regmap_async_complete); int regmap_register_patch(struct regmap *map, const struct reg_default *regs, int num_regs) { + struct reg_default *p; int i, ret; bool bypass; - /* If needed the implementation can be extended to support this */ - if (map->patch) - return -EBUSY; - map->lock(map->lock_arg); bypass = map->cache_bypass; @@ -1911,11 +1917,13 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs, } } - map->patch = kcalloc(num_regs, sizeof(struct reg_default), GFP_KERNEL); - if (map->patch != NULL) { - memcpy(map->patch, regs, - num_regs * sizeof(struct reg_default)); - map->patch_regs = num_regs; + p = krealloc(map->patch, + sizeof(struct reg_default) * (map->patch_regs + num_regs), + GFP_KERNEL); + if (p) { + memcpy(p + map->patch_regs, regs, num_regs * sizeof(*regs)); + map->patch = p; + map->patch_regs += num_regs; } else { ret = -ENOMEM; } diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index ad1fde277661..e9dedb27deca 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -197,7 +197,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) cpu_dev = &pdev->dev; cpu_dev->of_node = np; - cpu_reg = devm_regulator_get(cpu_dev, "cpu0"); + cpu_reg = devm_regulator_get_optional(cpu_dev, "cpu0"); if (IS_ERR(cpu_reg)) { /* * If cpu0 regulator supply node is present, but regulator is diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 6825957c97fb..daa4da281e5e 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -194,7 +194,7 @@ config SIRF_DMA Enable support for the CSR SiRFprimaII DMA engine. config TI_EDMA - tristate "TI EDMA support" + bool "TI EDMA support" depends on ARCH_DAVINCI || ARCH_OMAP select DMA_ENGINE select DMA_VIRTUAL_CHANNELS @@ -287,6 +287,14 @@ config DMA_OMAP select DMA_ENGINE select DMA_VIRTUAL_CHANNELS +config TI_CPPI41 + tristate "AM33xx CPPI41 DMA support" + depends on ARCH_OMAP + select DMA_ENGINE + help + The Communications Port Programming Interface (CPPI) 4.1 DMA engine + is currently used by the USB driver on AM335x platforms. + config MMP_PDMA bool "MMP PDMA support" depends on (ARCH_MMP || ARCH_PXA) diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index 5e0f2ef85614..6d62ec30c4bc 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -39,3 +39,4 @@ obj-$(CONFIG_MMP_TDMA) += mmp_tdma.o obj-$(CONFIG_DMA_OMAP) += omap-dma.o obj-$(CONFIG_MMP_PDMA) += mmp_pdma.o obj-$(CONFIG_DMA_JZ4740) += dma-jz4740.o +obj-$(CONFIG_TI_CPPI41) += cppi41.o diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c new file mode 100644 index 000000000000..7c82b92f9b16 --- /dev/null +++ b/drivers/dma/cppi41.c @@ -0,0 +1,1059 @@ +#include <linux/dmaengine.h> +#include <linux/dma-mapping.h> +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/slab.h> +#include <linux/of_dma.h> +#include <linux/of_irq.h> +#include <linux/dmapool.h> +#include <linux/interrupt.h> +#include <linux/of_address.h> +#include <linux/pm_runtime.h> +#include "dmaengine.h" + +#define DESC_TYPE 27 +#define DESC_TYPE_HOST 0x10 +#define DESC_TYPE_TEARD 0x13 + +#define TD_DESC_IS_RX (1 << 16) +#define TD_DESC_DMA_NUM 10 + +#define DESC_LENGTH_BITS_NUM 21 + +#define DESC_TYPE_USB (5 << 26) +#define DESC_PD_COMPLETE (1 << 31) + +/* DMA engine */ +#define DMA_TDFDQ 4 +#define DMA_TXGCR(x) (0x800 + (x) * 0x20) +#define DMA_RXGCR(x) (0x808 + (x) * 0x20) +#define RXHPCRA0 4 + +#define GCR_CHAN_ENABLE (1 << 31) +#define GCR_TEARDOWN (1 << 30) +#define GCR_STARV_RETRY (1 << 24) +#define GCR_DESC_TYPE_HOST (1 << 14) + +/* DMA scheduler */ +#define DMA_SCHED_CTRL 0 +#define DMA_SCHED_CTRL_EN (1 << 31) +#define DMA_SCHED_WORD(x) ((x) * 4 + 0x800) + +#define SCHED_ENTRY0_CHAN(x) ((x) << 0) +#define SCHED_ENTRY0_IS_RX (1 << 7) + +#define SCHED_ENTRY1_CHAN(x) ((x) << 8) +#define SCHED_ENTRY1_IS_RX (1 << 15) + +#define SCHED_ENTRY2_CHAN(x) ((x) << 16) +#define SCHED_ENTRY2_IS_RX (1 << 23) + +#define SCHED_ENTRY3_CHAN(x) ((x) << 24) +#define SCHED_ENTRY3_IS_RX (1 << 31) + +/* Queue manager */ +/* 4 KiB of memory for descriptors, 2 for each endpoint */ +#define ALLOC_DECS_NUM 128 +#define DESCS_AREAS 1 +#define TOTAL_DESCS_NUM (ALLOC_DECS_NUM * DESCS_AREAS) +#define QMGR_SCRATCH_SIZE (TOTAL_DESCS_NUM * 4) + +#define QMGR_LRAM0_BASE 0x80 +#define QMGR_LRAM_SIZE 0x84 +#define QMGR_LRAM1_BASE 0x88 +#define QMGR_MEMBASE(x) (0x1000 + (x) * 0x10) +#define QMGR_MEMCTRL(x) (0x1004 + (x) * 0x10) +#define QMGR_MEMCTRL_IDX_SH 16 +#define QMGR_MEMCTRL_DESC_SH 8 + +#define QMGR_NUM_PEND 5 +#define QMGR_PEND(x) (0x90 + (x) * 4) + +#define QMGR_PENDING_SLOT_Q(x) (x / 32) +#define QMGR_PENDING_BIT_Q(x) (x % 32) + +#define QMGR_QUEUE_A(n) (0x2000 + (n) * 0x10) +#define QMGR_QUEUE_B(n) (0x2004 + (n) * 0x10) +#define QMGR_QUEUE_C(n) (0x2008 + (n) * 0x10) +#define QMGR_QUEUE_D(n) (0x200c + (n) * 0x10) + +/* Glue layer specific */ +/* USBSS / USB AM335x */ +#define USBSS_IRQ_STATUS 0x28 +#define USBSS_IRQ_ENABLER 0x2c +#define USBSS_IRQ_CLEARR 0x30 + +#define USBSS_IRQ_PD_COMP (1 << 2) + +struct cppi41_channel { + struct dma_chan chan; + struct dma_async_tx_descriptor txd; + struct cppi41_dd *cdd; + struct cppi41_desc *desc; + dma_addr_t desc_phys; + void __iomem *gcr_reg; + int is_tx; + u32 residue; + + unsigned int q_num; + unsigned int q_comp_num; + unsigned int port_num; + + unsigned td_retry; + unsigned td_queued:1; + unsigned td_seen:1; + unsigned td_desc_seen:1; +}; + +struct cppi41_desc { + u32 pd0; + u32 pd1; + u32 pd2; + u32 pd3; + u32 pd4; + u32 pd5; + u32 pd6; + u32 pd7; +} __aligned(32); + +struct chan_queues { + u16 submit; + u16 complete; +}; + +struct cppi41_dd { + struct dma_device ddev; + + void *qmgr_scratch; + dma_addr_t scratch_phys; + + struct cppi41_desc *cd; + dma_addr_t descs_phys; + u32 first_td_desc; + struct cppi41_channel *chan_busy[ALLOC_DECS_NUM]; + + void __iomem *usbss_mem; + void __iomem *ctrl_mem; + void __iomem *sched_mem; + void __iomem *qmgr_mem; + unsigned int irq; + const struct chan_queues *queues_rx; + const struct chan_queues *queues_tx; + struct chan_queues td_queue; +}; + +#define FIST_COMPLETION_QUEUE 93 +static struct chan_queues usb_queues_tx[] = { + /* USB0 ENDP 1 */ + [ 0] = { .submit = 32, .complete = 93}, + [ 1] = { .submit = 34, .complete = 94}, + [ 2] = { .submit = 36, .complete = 95}, + [ 3] = { .submit = 38, .complete = 96}, + [ 4] = { .submit = 40, .complete = 97}, + [ 5] = { .submit = 42, .complete = 98}, + [ 6] = { .submit = 44, .complete = 99}, + [ 7] = { .submit = 46, .complete = 100}, + [ 8] = { .submit = 48, .complete = 101}, + [ 9] = { .submit = 50, .complete = 102}, + [10] = { .submit = 52, .complete = 103}, + [11] = { .submit = 54, .complete = 104}, + [12] = { .submit = 56, .complete = 105}, + [13] = { .submit = 58, .complete = 106}, + [14] = { .submit = 60, .complete = 107}, + + /* USB1 ENDP1 */ + [15] = { .submit = 62, .complete = 125}, + [16] = { .submit = 64, .complete = 126}, + [17] = { .submit = 66, .complete = 127}, + [18] = { .submit = 68, .complete = 128}, + [19] = { .submit = 70, .complete = 129}, + [20] = { .submit = 72, .complete = 130}, + [21] = { .submit = 74, .complete = 131}, + [22] = { .submit = 76, .complete = 132}, + [23] = { .submit = 78, .complete = 133}, + [24] = { .submit = 80, .complete = 134}, + [25] = { .submit = 82, .complete = 135}, + [26] = { .submit = 84, .complete = 136}, + [27] = { .submit = 86, .complete = 137}, + [28] = { .submit = 88, .complete = 138}, + [29] = { .submit = 90, .complete = 139}, +}; + +static const struct chan_queues usb_queues_rx[] = { + /* USB0 ENDP 1 */ + [ 0] = { .submit = 1, .complete = 109}, + [ 1] = { .submit = 2, .complete = 110}, + [ 2] = { .submit = 3, .complete = 111}, + [ 3] = { .submit = 4, .complete = 112}, + [ 4] = { .submit = 5, .complete = 113}, + [ 5] = { .submit = 6, .complete = 114}, + [ 6] = { .submit = 7, .complete = 115}, + [ 7] = { .submit = 8, .complete = 116}, + [ 8] = { .submit = 9, .complete = 117}, + [ 9] = { .submit = 10, .complete = 118}, + [10] = { .submit = 11, .complete = 119}, + [11] = { .submit = 12, .complete = 120}, + [12] = { .submit = 13, .complete = 121}, + [13] = { .submit = 14, .complete = 122}, + [14] = { .submit = 15, .complete = 123}, + + /* USB1 ENDP 1 */ + [15] = { .submit = 16, .complete = 141}, + [16] = { .submit = 17, .complete = 142}, + [17] = { .submit = 18, .complete = 143}, + [18] = { .submit = 19, .complete = 144}, + [19] = { .submit = 20, .complete = 145}, + [20] = { .submit = 21, .complete = 146}, + [21] = { .submit = 22, .complete = 147}, + [22] = { .submit = 23, .complete = 148}, + [23] = { .submit = 24, .complete = 149}, + [24] = { .submit = 25, .complete = 150}, + [25] = { .submit = 26, .complete = 151}, + [26] = { .submit = 27, .complete = 152}, + [27] = { .submit = 28, .complete = 153}, + [28] = { .submit = 29, .complete = 154}, + [29] = { .submit = 30, .complete = 155}, +}; + +struct cppi_glue_infos { + irqreturn_t (*isr)(int irq, void *data); + const struct chan_queues *queues_rx; + const struct chan_queues *queues_tx; + struct chan_queues td_queue; +}; + +static struct cppi41_channel *to_cpp41_chan(struct dma_chan *c) +{ + return container_of(c, struct cppi41_channel, chan); +} + +static struct cppi41_channel *desc_to_chan(struct cppi41_dd *cdd, u32 desc) +{ + struct cppi41_channel *c; + u32 descs_size; + u32 desc_num; + + descs_size = sizeof(struct cppi41_desc) * ALLOC_DECS_NUM; + + if (!((desc >= cdd->descs_phys) && + (desc < (cdd->descs_phys + descs_size)))) { + return NULL; + } + + desc_num = (desc - cdd->descs_phys) / sizeof(struct cppi41_desc); + BUG_ON(desc_num >= ALLOC_DECS_NUM); + c = cdd->chan_busy[desc_num]; + cdd->chan_busy[desc_num] = NULL; + return c; +} + +static void cppi_writel(u32 val, void *__iomem *mem) +{ + __raw_writel(val, mem); +} + +static u32 cppi_readl(void *__iomem *mem) +{ + return __raw_readl(mem); +} + +static u32 pd_trans_len(u32 val) +{ + return val & ((1 << (DESC_LENGTH_BITS_NUM + 1)) - 1); +} + +static irqreturn_t cppi41_irq(int irq, void *data) +{ + struct cppi41_dd *cdd = data; + struct cppi41_channel *c; + u32 status; + int i; + + status = cppi_readl(cdd->usbss_mem + USBSS_IRQ_STATUS); + if (!(status & USBSS_IRQ_PD_COMP)) + return IRQ_NONE; + cppi_writel(status, cdd->usbss_mem + USBSS_IRQ_STATUS); + + for (i = QMGR_PENDING_SLOT_Q(FIST_COMPLETION_QUEUE); i < QMGR_NUM_PEND; + i++) { + u32 val; + u32 q_num; + + val = cppi_readl(cdd->qmgr_mem + QMGR_PEND(i)); + if (i == QMGR_PENDING_SLOT_Q(FIST_COMPLETION_QUEUE) && val) { + u32 mask; + /* set corresponding bit for completetion Q 93 */ + mask = 1 << QMGR_PENDING_BIT_Q(FIST_COMPLETION_QUEUE); + /* not set all bits for queues less than Q 93 */ + mask--; + /* now invert and keep only Q 93+ set */ + val &= ~mask; + } + + if (val) + __iormb(); + + while (val) { + u32 desc; + + q_num = __fls(val); + val &= ~(1 << q_num); + q_num += 32 * i; + desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(q_num)); + desc &= ~0x1f; + c = desc_to_chan(cdd, desc); + if (WARN_ON(!c)) { + pr_err("%s() q %d desc %08x\n", __func__, + q_num, desc); + continue; + } + c->residue = pd_trans_len(c->desc->pd6) - + pd_trans_len(c->desc->pd0); + + dma_cookie_complete(&c->txd); + c->txd.callback(c->txd.callback_param); + } + } + return IRQ_HANDLED; +} + +static dma_cookie_t cppi41_tx_submit(struct dma_async_tx_descriptor *tx) +{ + dma_cookie_t cookie; + + cookie = dma_cookie_assign(tx); + + return cookie; +} + +static int cppi41_dma_alloc_chan_resources(struct dma_chan *chan) +{ + struct cppi41_channel *c = to_cpp41_chan(chan); + + dma_cookie_init(chan); + dma_async_tx_descriptor_init(&c->txd, chan); + c->txd.tx_submit = cppi41_tx_submit; + + if (!c->is_tx) + cppi_writel(c->q_num, c->gcr_reg + RXHPCRA0); + + return 0; +} + +static void cppi41_dma_free_chan_resources(struct dma_chan *chan) +{ +} + +static enum dma_status cppi41_dma_tx_status(struct dma_chan *chan, + dma_cookie_t cookie, struct dma_tx_state *txstate) +{ + struct cppi41_channel *c = to_cpp41_chan(chan); + enum dma_status ret; + + /* lock */ + ret = dma_cookie_status(chan, cookie, txstate); + if (txstate && ret == DMA_SUCCESS) + txstate->residue = c->residue; + /* unlock */ + + return ret; +} + +static void push_desc_queue(struct cppi41_channel *c) +{ + struct cppi41_dd *cdd = c->cdd; + u32 desc_num; + u32 desc_phys; + u32 reg; + + desc_phys = lower_32_bits(c->desc_phys); + desc_num = (desc_phys - cdd->descs_phys) / sizeof(struct cppi41_desc); + WARN_ON(cdd->chan_busy[desc_num]); + cdd->chan_busy[desc_num] = c; + + reg = (sizeof(struct cppi41_desc) - 24) / 4; + reg |= desc_phys; + cppi_writel(reg, cdd->qmgr_mem + QMGR_QUEUE_D(c->q_num)); +} + +static void cppi41_dma_issue_pending(struct dma_chan *chan) +{ + struct cppi41_channel *c = to_cpp41_chan(chan); + u32 reg; + + c->residue = 0; + + reg = GCR_CHAN_ENABLE; + if (!c->is_tx) { + reg |= GCR_STARV_RETRY; + reg |= GCR_DESC_TYPE_HOST; + reg |= c->q_comp_num; + } + + cppi_writel(reg, c->gcr_reg); + + /* + * We don't use writel() but __raw_writel() so we have to make sure + * that the DMA descriptor in coherent memory made to the main memory + * before starting the dma engine. + */ + __iowmb(); + push_desc_queue(c); +} + +static u32 get_host_pd0(u32 length) +{ + u32 reg; + + reg = DESC_TYPE_HOST << DESC_TYPE; + reg |= length; + + return reg; +} + +static u32 get_host_pd1(struct cppi41_channel *c) +{ + u32 reg; + + reg = 0; + + return reg; +} + +static u32 get_host_pd2(struct cppi41_channel *c) +{ + u32 reg; + + reg = DESC_TYPE_USB; + reg |= c->q_comp_num; + + return reg; +} + +static u32 get_host_pd3(u32 length) +{ + u32 reg; + + /* PD3 = packet size */ + reg = length; + + return reg; +} + +static u32 get_host_pd6(u32 length) +{ + u32 reg; + + /* PD6 buffer size */ + reg = DESC_PD_COMPLETE; + reg |= length; + + return reg; +} + +static u32 get_host_pd4_or_7(u32 addr) +{ + u32 reg; + + reg = addr; + + return reg; +} + +static u32 get_host_pd5(void) +{ + u32 reg; + + reg = 0; + + return reg; +} + +static struct dma_async_tx_descriptor *cppi41_dma_prep_slave_sg( + struct dma_chan *chan, struct scatterlist *sgl, unsigned sg_len, + enum dma_transfer_direction dir, unsigned long tx_flags, void *context) +{ + struct cppi41_channel *c = to_cpp41_chan(chan); + struct cppi41_desc *d; + struct scatterlist *sg; + unsigned int i; + unsigned int num; + + num = 0; + d = c->desc; + for_each_sg(sgl, sg, sg_len, i) { + u32 addr; + u32 len; + + /* We need to use more than one desc once musb supports sg */ + BUG_ON(num > 0); + addr = lower_32_bits(sg_dma_address(sg)); + len = sg_dma_len(sg); + + d->pd0 = get_host_pd0(len); + d->pd1 = get_host_pd1(c); + d->pd2 = get_host_pd2(c); + d->pd3 = get_host_pd3(len); + d->pd4 = get_host_pd4_or_7(addr); + d->pd5 = get_host_pd5(); + d->pd6 = get_host_pd6(len); + d->pd7 = get_host_pd4_or_7(addr); + + d++; + } + + return &c->txd; +} + +static int cpp41_cfg_chan(struct cppi41_channel *c, + struct dma_slave_config *cfg) +{ + return 0; +} + +static void cppi41_compute_td_desc(struct cppi41_desc *d) +{ + d->pd0 = DESC_TYPE_TEARD << DESC_TYPE; +} + +static u32 cppi41_pop_desc(struct cppi41_dd *cdd, unsigned queue_num) +{ + u32 desc; + + desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(queue_num)); + desc &= ~0x1f; + return desc; +} + +static int cppi41_tear_down_chan(struct cppi41_channel *c) +{ + struct cppi41_dd *cdd = c->cdd; + struct cppi41_desc *td; + u32 reg; + u32 desc_phys; + u32 td_desc_phys; + + td = cdd->cd; + td += cdd->first_td_desc; + + td_desc_phys = cdd->descs_phys; + td_desc_phys += cdd->first_td_desc * sizeof(struct cppi41_desc); + + if (!c->td_queued) { + cppi41_compute_td_desc(td); + __iowmb(); + + reg = (sizeof(struct cppi41_desc) - 24) / 4; + reg |= td_desc_phys; + cppi_writel(reg, cdd->qmgr_mem + + QMGR_QUEUE_D(cdd->td_queue.submit)); + + reg = GCR_CHAN_ENABLE; + if (!c->is_tx) { + reg |= GCR_STARV_RETRY; + reg |= GCR_DESC_TYPE_HOST; + reg |= c->q_comp_num; + } + reg |= GCR_TEARDOWN; + cppi_writel(reg, c->gcr_reg); + c->td_queued = 1; + c->td_retry = 100; + } + + if (!c->td_seen) { + unsigned td_comp_queue; + + if (c->is_tx) + td_comp_queue = cdd->td_queue.complete; + else + td_comp_queue = c->q_comp_num; + + desc_phys = cppi41_pop_desc(cdd, td_comp_queue); + if (desc_phys) { + __iormb(); + + if (desc_phys == td_desc_phys) { + u32 pd0; + pd0 = td->pd0; + WARN_ON((pd0 >> DESC_TYPE) != DESC_TYPE_TEARD); + WARN_ON(!c->is_tx && !(pd0 & TD_DESC_IS_RX)); + WARN_ON((pd0 & 0x1f) != c->port_num); + } else { + WARN_ON_ONCE(1); + } + c->td_seen = 1; + } + } + if (!c->td_desc_seen) { + desc_phys = cppi41_pop_desc(cdd, c->q_comp_num); + if (desc_phys) { + __iormb(); + WARN_ON(c->desc_phys != desc_phys); + c->td_desc_seen = 1; + } + } + c->td_retry--; + /* + * If the TX descriptor / channel is in use, the caller needs to poke + * his TD bit multiple times. After that he hardware releases the + * transfer descriptor followed by TD descriptor. Waiting seems not to + * cause any difference. + * RX seems to be thrown out right away. However once the TearDown + * descriptor gets through we are done. If we have seens the transfer + * descriptor before the TD we fetch it from enqueue, it has to be + * there waiting for us. + */ + if (!c->td_seen && c->td_retry) + return -EAGAIN; + + WARN_ON(!c->td_retry); + if (!c->td_desc_seen) { + desc_phys = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(c->q_num)); + WARN_ON(!desc_phys); + } + + c->td_queued = 0; + c->td_seen = 0; + c->td_desc_seen = 0; + cppi_writel(0, c->gcr_reg); + return 0; +} + +static int cppi41_stop_chan(struct dma_chan *chan) +{ + struct cppi41_channel *c = to_cpp41_chan(chan); + struct cppi41_dd *cdd = c->cdd; + u32 desc_num; + u32 desc_phys; + int ret; + + ret = cppi41_tear_down_chan(c); + if (ret) + return ret; + + desc_phys = lower_32_bits(c->desc_phys); + desc_num = (desc_phys - cdd->descs_phys) / sizeof(struct cppi41_desc); + WARN_ON(!cdd->chan_busy[desc_num]); + cdd->chan_busy[desc_num] = NULL; + + return 0; +} + +static int cppi41_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, + unsigned long arg) +{ + struct cppi41_channel *c = to_cpp41_chan(chan); + int ret; + + switch (cmd) { + case DMA_SLAVE_CONFIG: + ret = cpp41_cfg_chan(c, (struct dma_slave_config *) arg); + break; + + case DMA_TERMINATE_ALL: + ret = cppi41_stop_chan(chan); + break; + + default: + ret = -ENXIO; + break; + } + return ret; +} + +static void cleanup_chans(struct cppi41_dd *cdd) +{ + while (!list_empty(&cdd->ddev.channels)) { + struct cppi41_channel *cchan; + + cchan = list_first_entry(&cdd->ddev.channels, + struct cppi41_channel, chan.device_node); + list_del(&cchan->chan.device_node); + kfree(cchan); + } +} + +static int cppi41_add_chans(struct platform_device *pdev, struct cppi41_dd *cdd) +{ + struct cppi41_channel *cchan; + int i; + int ret; + u32 n_chans; + + ret = of_property_read_u32(pdev->dev.of_node, "#dma-channels", + &n_chans); + if (ret) + return ret; + /* + * The channels can only be used as TX or as RX. So we add twice + * that much dma channels because USB can only do RX or TX. + */ + n_chans *= 2; + + for (i = 0; i < n_chans; i++) { + cchan = kzalloc(sizeof(*cchan), GFP_KERNEL); + if (!cchan) + goto err; + + cchan->cdd = cdd; + if (i & 1) { + cchan->gcr_reg = cdd->ctrl_mem + DMA_TXGCR(i >> 1); + cchan->is_tx = 1; + } else { + cchan->gcr_reg = cdd->ctrl_mem + DMA_RXGCR(i >> 1); + cchan->is_tx = 0; + } + cchan->port_num = i >> 1; + cchan->desc = &cdd->cd[i]; + cchan->desc_phys = cdd->descs_phys; + cchan->desc_phys += i * sizeof(struct cppi41_desc); + cchan->chan.device = &cdd->ddev; + list_add_tail(&cchan->chan.device_node, &cdd->ddev.channels); + } + cdd->first_td_desc = n_chans; + + return 0; +err: + cleanup_chans(cdd); + return -ENOMEM; +} + +static void purge_descs(struct platform_device *pdev, struct cppi41_dd *cdd) +{ + unsigned int mem_decs; + int i; + + mem_decs = ALLOC_DECS_NUM * sizeof(struct cppi41_desc); + + for (i = 0; i < DESCS_AREAS; i++) { + + cppi_writel(0, cdd->qmgr_mem + QMGR_MEMBASE(i)); + cppi_writel(0, cdd->qmgr_mem + QMGR_MEMCTRL(i)); + + dma_free_coherent(&pdev->dev, mem_decs, cdd->cd, + cdd->descs_phys); + } +} + +static void disable_sched(struct cppi41_dd *cdd) +{ + cppi_writel(0, cdd->sched_mem + DMA_SCHED_CTRL); +} + +static void deinit_cpii41(struct platform_device *pdev, struct cppi41_dd *cdd) +{ + disable_sched(cdd); + + purge_descs(pdev, cdd); + + cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM0_BASE); + cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM0_BASE); + dma_free_coherent(&pdev->dev, QMGR_SCRATCH_SIZE, cdd->qmgr_scratch, + cdd->scratch_phys); +} + +static int init_descs(struct platform_device *pdev, struct cppi41_dd *cdd) +{ + unsigned int desc_size; + unsigned int mem_decs; + int i; + u32 reg; + u32 idx; + + BUILD_BUG_ON(sizeof(struct cppi41_desc) & + (sizeof(struct cppi41_desc) - 1)); + BUILD_BUG_ON(sizeof(struct cppi41_desc) < 32); + BUILD_BUG_ON(ALLOC_DECS_NUM < 32); + + desc_size = sizeof(struct cppi41_desc); + mem_decs = ALLOC_DECS_NUM * desc_size; + + idx = 0; + for (i = 0; i < DESCS_AREAS; i++) { + + reg = idx << QMGR_MEMCTRL_IDX_SH; + reg |= (ilog2(desc_size) - 5) << QMGR_MEMCTRL_DESC_SH; + reg |= ilog2(ALLOC_DECS_NUM) - 5; + + BUILD_BUG_ON(DESCS_AREAS != 1); + cdd->cd = dma_alloc_coherent(&pdev->dev, mem_decs, + &cdd->descs_phys, GFP_KERNEL); + if (!cdd->cd) + return -ENOMEM; + + cppi_writel(cdd->descs_phys, cdd->qmgr_mem + QMGR_MEMBASE(i)); + cppi_writel(reg, cdd->qmgr_mem + QMGR_MEMCTRL(i)); + + idx += ALLOC_DECS_NUM; + } + return 0; +} + +static void init_sched(struct cppi41_dd *cdd) +{ + unsigned ch; + unsigned word; + u32 reg; + + word = 0; + cppi_writel(0, cdd->sched_mem + DMA_SCHED_CTRL); + for (ch = 0; ch < 15 * 2; ch += 2) { + + reg = SCHED_ENTRY0_CHAN(ch); + reg |= SCHED_ENTRY1_CHAN(ch) | SCHED_ENTRY1_IS_RX; + + reg |= SCHED_ENTRY2_CHAN(ch + 1); + reg |= SCHED_ENTRY3_CHAN(ch + 1) | SCHED_ENTRY3_IS_RX; + cppi_writel(reg, cdd->sched_mem + DMA_SCHED_WORD(word)); + word++; + } + reg = 15 * 2 * 2 - 1; + reg |= DMA_SCHED_CTRL_EN; + cppi_writel(reg, cdd->sched_mem + DMA_SCHED_CTRL); +} + +static int init_cppi41(struct platform_device *pdev, struct cppi41_dd *cdd) +{ + int ret; + + BUILD_BUG_ON(QMGR_SCRATCH_SIZE > ((1 << 14) - 1)); + cdd->qmgr_scratch = dma_alloc_coherent(&pdev->dev, QMGR_SCRATCH_SIZE, + &cdd->scratch_phys, GFP_KERNEL); + if (!cdd->qmgr_scratch) + return -ENOMEM; + + cppi_writel(cdd->scratch_phys, cdd->qmgr_mem + QMGR_LRAM0_BASE); + cppi_writel(QMGR_SCRATCH_SIZE, cdd->qmgr_mem + QMGR_LRAM_SIZE); + cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM1_BASE); + + ret = init_descs(pdev, cdd); + if (ret) + goto err_td; + + cppi_writel(cdd->td_queue.submit, cdd->ctrl_mem + DMA_TDFDQ); + init_sched(cdd); + return 0; +err_td: + deinit_cpii41(pdev, cdd); + return ret; +} + +static struct platform_driver cpp41_dma_driver; +/* + * The param format is: + * X Y + * X: Port + * Y: 0 = RX else TX + */ +#define INFO_PORT 0 +#define INFO_IS_TX 1 + +static bool cpp41_dma_filter_fn(struct dma_chan *chan, void *param) +{ + struct cppi41_channel *cchan; + struct cppi41_dd *cdd; + const struct chan_queues *queues; + u32 *num = param; + + if (chan->device->dev->driver != &cpp41_dma_driver.driver) + return false; + + cchan = to_cpp41_chan(chan); + + if (cchan->port_num != num[INFO_PORT]) + return false; + + if (cchan->is_tx && !num[INFO_IS_TX]) + return false; + cdd = cchan->cdd; + if (cchan->is_tx) + queues = cdd->queues_tx; + else + queues = cdd->queues_rx; + + BUILD_BUG_ON(ARRAY_SIZE(usb_queues_rx) != ARRAY_SIZE(usb_queues_tx)); + if (WARN_ON(cchan->port_num > ARRAY_SIZE(usb_queues_rx))) + return false; + + cchan->q_num = queues[cchan->port_num].submit; + cchan->q_comp_num = queues[cchan->port_num].complete; + return true; +} + +static struct of_dma_filter_info cpp41_dma_info = { + .filter_fn = cpp41_dma_filter_fn, +}; + +static struct dma_chan *cppi41_dma_xlate(struct of_phandle_args *dma_spec, + struct of_dma *ofdma) +{ + int count = dma_spec->args_count; + struct of_dma_filter_info *info = ofdma->of_dma_data; + + if (!info || !info->filter_fn) + return NULL; + + if (count != 2) + return NULL; + + return dma_request_channel(info->dma_cap, info->filter_fn, + &dma_spec->args[0]); +} + +static const struct cppi_glue_infos usb_infos = { + .isr = cppi41_irq, + .queues_rx = usb_queues_rx, + .queues_tx = usb_queues_tx, + .td_queue = { .submit = 31, .complete = 0 }, +}; + +static const struct of_device_id cppi41_dma_ids[] = { + { .compatible = "ti,am3359-cppi41", .data = &usb_infos}, + {}, +}; +MODULE_DEVICE_TABLE(of, cppi41_dma_ids); + +static const struct cppi_glue_infos *get_glue_info(struct platform_device *pdev) +{ + const struct of_device_id *of_id; + + of_id = of_match_node(cppi41_dma_ids, pdev->dev.of_node); + if (!of_id) + return NULL; + return of_id->data; +} + +static int cppi41_dma_probe(struct platform_device *pdev) +{ + struct cppi41_dd *cdd; + const struct cppi_glue_infos *glue_info; + int irq; + int ret; + + glue_info = get_glue_info(pdev); + if (!glue_info) + return -EINVAL; + + cdd = kzalloc(sizeof(*cdd), GFP_KERNEL); + if (!cdd) + return -ENOMEM; + + dma_cap_set(DMA_SLAVE, cdd->ddev.cap_mask); + cdd->ddev.device_alloc_chan_resources = cppi41_dma_alloc_chan_resources; + cdd->ddev.device_free_chan_resources = cppi41_dma_free_chan_resources; + cdd->ddev.device_tx_status = cppi41_dma_tx_status; + cdd->ddev.device_issue_pending = cppi41_dma_issue_pending; + cdd->ddev.device_prep_slave_sg = cppi41_dma_prep_slave_sg; + cdd->ddev.device_control = cppi41_dma_control; + cdd->ddev.dev = &pdev->dev; + INIT_LIST_HEAD(&cdd->ddev.channels); + cpp41_dma_info.dma_cap = cdd->ddev.cap_mask; + + cdd->usbss_mem = of_iomap(pdev->dev.of_node, 0); + cdd->ctrl_mem = of_iomap(pdev->dev.of_node, 1); + cdd->sched_mem = of_iomap(pdev->dev.of_node, 2); + cdd->qmgr_mem = of_iomap(pdev->dev.of_node, 3); + + if (!cdd->usbss_mem || !cdd->ctrl_mem || !cdd->sched_mem || + !cdd->qmgr_mem) { + ret = -ENXIO; + goto err_remap; + } + + pm_runtime_enable(&pdev->dev); + ret = pm_runtime_get_sync(&pdev->dev); + if (ret) + goto err_get_sync; + + cdd->queues_rx = glue_info->queues_rx; + cdd->queues_tx = glue_info->queues_tx; + cdd->td_queue = glue_info->td_queue; + + ret = init_cppi41(pdev, cdd); + if (ret) + goto err_init_cppi; + + ret = cppi41_add_chans(pdev, cdd); + if (ret) + goto err_chans; + + irq = irq_of_parse_and_map(pdev->dev.of_node, 0); + if (!irq) + goto err_irq; + + cppi_writel(USBSS_IRQ_PD_COMP, cdd->usbss_mem + USBSS_IRQ_ENABLER); + + ret = request_irq(irq, glue_info->isr, IRQF_SHARED, + dev_name(&pdev->dev), cdd); + if (ret) + goto err_irq; + cdd->irq = irq; + + ret = dma_async_device_register(&cdd->ddev); + if (ret) + goto err_dma_reg; + + ret = of_dma_controller_register(pdev->dev.of_node, + cppi41_dma_xlate, &cpp41_dma_info); + if (ret) + goto err_of; + + platform_set_drvdata(pdev, cdd); + return 0; +err_of: + dma_async_device_unregister(&cdd->ddev); +err_dma_reg: + free_irq(irq, cdd); +err_irq: + cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR); + cleanup_chans(cdd); +err_chans: + deinit_cpii41(pdev, cdd); +err_init_cppi: + pm_runtime_put(&pdev->dev); +err_get_sync: + pm_runtime_disable(&pdev->dev); + iounmap(cdd->usbss_mem); + iounmap(cdd->ctrl_mem); + iounmap(cdd->sched_mem); + iounmap(cdd->qmgr_mem); +err_remap: + kfree(cdd); + return ret; +} + +static int cppi41_dma_remove(struct platform_device *pdev) +{ + struct cppi41_dd *cdd = platform_get_drvdata(pdev); + + of_dma_controller_free(pdev->dev.of_node); + dma_async_device_unregister(&cdd->ddev); + + cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR); + free_irq(cdd->irq, cdd); + cleanup_chans(cdd); + deinit_cpii41(pdev, cdd); + iounmap(cdd->usbss_mem); + iounmap(cdd->ctrl_mem); + iounmap(cdd->sched_mem); + iounmap(cdd->qmgr_mem); + pm_runtime_put(&pdev->dev); + pm_runtime_disable(&pdev->dev); + kfree(cdd); + return 0; +} + +static struct platform_driver cpp41_dma_driver = { + .probe = cppi41_dma_probe, + .remove = cppi41_dma_remove, + .driver = { + .name = "cppi41-dma-engine", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(cppi41_dma_ids), + }, +}; + +module_platform_driver(cpp41_dma_driver); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>"); diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c index 19e36603b23b..3bc8414533c9 100644 --- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c +++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c @@ -500,7 +500,8 @@ static bool psb_intel_sdvo_read_response(struct psb_intel_sdvo *psb_intel_sdvo, &status)) goto log_fail; - while (status == SDVO_CMD_STATUS_PENDING && retry--) { + while ((status == SDVO_CMD_STATUS_PENDING || + status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && retry--) { udelay(15); if (!psb_intel_sdvo_read_byte(psb_intel_sdvo, SDVO_I2C_CMD_STATUS, diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c index dc53a527126b..9e6578330801 100644 --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c @@ -85,9 +85,17 @@ static void i915_gem_unmap_dma_buf(struct dma_buf_attachment *attachment, struct sg_table *sg, enum dma_data_direction dir) { + struct drm_i915_gem_object *obj = attachment->dmabuf->priv; + + mutex_lock(&obj->base.dev->struct_mutex); + dma_unmap_sg(attachment->dev, sg->sgl, sg->nents, dir); sg_free_table(sg); kfree(sg); + + i915_gem_object_unpin_pages(obj); + + mutex_unlock(&obj->base.dev->struct_mutex); } static void i915_gem_dmabuf_release(struct dma_buf *dma_buf) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 6f514297c483..342f1f336168 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -752,6 +752,8 @@ will not assert AGPBUSY# and will only be delivered when out of C3. */ #define INSTPM_FORCE_ORDERING (1<<7) /* GEN6+ */ +#define INSTPM_TLB_INVALIDATE (1<<9) +#define INSTPM_SYNC_FLUSH (1<<5) #define ACTHD 0x020c8 #define FW_BLC 0x020d8 #define FW_BLC2 0x020dc @@ -4438,7 +4440,7 @@ #define EDP_LINK_TRAIN_600MV_0DB_IVB (0x30 <<22) #define EDP_LINK_TRAIN_600MV_3_5DB_IVB (0x36 <<22) #define EDP_LINK_TRAIN_800MV_0DB_IVB (0x38 <<22) -#define EDP_LINK_TRAIN_800MV_3_5DB_IVB (0x33 <<22) +#define EDP_LINK_TRAIN_800MV_3_5DB_IVB (0x3e <<22) /* legacy values */ #define EDP_LINK_TRAIN_500MV_0DB_IVB (0x00 <<22) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e38b45786653..be79f477a38f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -10042,6 +10042,8 @@ struct intel_display_error_state { u32 power_well_driver; + int num_transcoders; + struct intel_cursor_error_state { u32 control; u32 position; @@ -10050,16 +10052,7 @@ struct intel_display_error_state { } cursor[I915_MAX_PIPES]; struct intel_pipe_error_state { - enum transcoder cpu_transcoder; - u32 conf; u32 source; - - u32 htotal; - u32 hblank; - u32 hsync; - u32 vtotal; - u32 vblank; - u32 vsync; } pipe[I915_MAX_PIPES]; struct intel_plane_error_state { @@ -10071,6 +10064,19 @@ struct intel_display_error_state { u32 surface; u32 tile_offset; } plane[I915_MAX_PIPES]; + + struct intel_transcoder_error_state { + enum transcoder cpu_transcoder; + + u32 conf; + + u32 htotal; + u32 hblank; + u32 hsync; + u32 vtotal; + u32 vblank; + u32 vsync; + } transcoder[4]; }; struct intel_display_error_state * @@ -10078,9 +10084,17 @@ intel_display_capture_error_state(struct drm_device *dev) { drm_i915_private_t *dev_priv = dev->dev_private; struct intel_display_error_state *error; - enum transcoder cpu_transcoder; + int transcoders[] = { + TRANSCODER_A, + TRANSCODER_B, + TRANSCODER_C, + TRANSCODER_EDP, + }; int i; + if (INTEL_INFO(dev)->num_pipes == 0) + return NULL; + error = kmalloc(sizeof(*error), GFP_ATOMIC); if (error == NULL) return NULL; @@ -10089,9 +10103,6 @@ intel_display_capture_error_state(struct drm_device *dev) error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER); for_each_pipe(i) { - cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i); - error->pipe[i].cpu_transcoder = cpu_transcoder; - if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) { error->cursor[i].control = I915_READ(CURCNTR(i)); error->cursor[i].position = I915_READ(CURPOS(i)); @@ -10115,14 +10126,25 @@ intel_display_capture_error_state(struct drm_device *dev) error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i)); } - error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder)); error->pipe[i].source = I915_READ(PIPESRC(i)); - error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); - error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder)); - error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder)); - error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); - error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder)); - error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder)); + } + + error->num_transcoders = INTEL_INFO(dev)->num_pipes; + if (HAS_DDI(dev_priv->dev)) + error->num_transcoders++; /* Account for eDP. */ + + for (i = 0; i < error->num_transcoders; i++) { + enum transcoder cpu_transcoder = transcoders[i]; + + error->transcoder[i].cpu_transcoder = cpu_transcoder; + + error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder)); + error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder)); + error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder)); + error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder)); + error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder)); + error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder)); + error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder)); } /* In the code above we read the registers without checking if the power @@ -10144,22 +10166,16 @@ intel_display_print_error_state(struct drm_i915_error_state_buf *m, { int i; + if (!error) + return; + err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes); if (HAS_POWER_WELL(dev)) err_printf(m, "PWR_WELL_CTL2: %08x\n", error->power_well_driver); for_each_pipe(i) { err_printf(m, "Pipe [%d]:\n", i); - err_printf(m, " CPU transcoder: %c\n", - transcoder_name(error->pipe[i].cpu_transcoder)); - err_printf(m, " CONF: %08x\n", error->pipe[i].conf); err_printf(m, " SRC: %08x\n", error->pipe[i].source); - err_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal); - err_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank); - err_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync); - err_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal); - err_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank); - err_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync); err_printf(m, "Plane [%d]:\n", i); err_printf(m, " CNTR: %08x\n", error->plane[i].control); @@ -10180,5 +10196,17 @@ intel_display_print_error_state(struct drm_i915_error_state_buf *m, err_printf(m, " POS: %08x\n", error->cursor[i].position); err_printf(m, " BASE: %08x\n", error->cursor[i].base); } + + for (i = 0; i < error->num_transcoders; i++) { + err_printf(m, " CPU transcoder: %c\n", + transcoder_name(error->transcoder[i].cpu_transcoder)); + err_printf(m, " CONF: %08x\n", error->transcoder[i].conf); + err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal); + err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank); + err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync); + err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal); + err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank); + err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync); + } } #endif diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 664118d8c1d6..079ef0129e74 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -968,6 +968,18 @@ void intel_ring_setup_status_page(struct intel_ring_buffer *ring) I915_WRITE(mmio, (u32)ring->status_page.gfx_addr); POSTING_READ(mmio); + + /* Flush the TLB for this page */ + if (INTEL_INFO(dev)->gen >= 6) { + u32 reg = RING_INSTPM(ring->mmio_base); + I915_WRITE(reg, + _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE | + INSTPM_SYNC_FLUSH)); + if (wait_for((I915_READ(reg) & INSTPM_SYNC_FLUSH) == 0, + 1000)) + DRM_ERROR("%s: wait for SyncFlush to complete for TLB invalidation timed out\n", + ring->name); + } } static int diff --git a/drivers/gpu/drm/nouveau/core/core/mm.c b/drivers/gpu/drm/nouveau/core/core/mm.c index d8291724dbd4..7a4e0891c5f8 100644 --- a/drivers/gpu/drm/nouveau/core/core/mm.c +++ b/drivers/gpu/drm/nouveau/core/core/mm.c @@ -98,6 +98,8 @@ nouveau_mm_head(struct nouveau_mm *mm, u8 type, u32 size_max, u32 size_min, u32 splitoff; u32 s, e; + BUG_ON(!type); + list_for_each_entry(this, &mm->free, fl_entry) { e = this->offset + this->length; s = this->offset; @@ -162,6 +164,8 @@ nouveau_mm_tail(struct nouveau_mm *mm, u8 type, u32 size_max, u32 size_min, struct nouveau_mm_node *prev, *this, *next; u32 mask = align - 1; + BUG_ON(!type); + list_for_each_entry_reverse(this, &mm->free, fl_entry) { u32 e = this->offset + this->length; u32 s = this->offset; diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h index d5502267c30f..9d2cd2006250 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h @@ -20,8 +20,8 @@ nouveau_mc(void *obj) return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_MC]; } -#define nouveau_mc_create(p,e,o,d) \ - nouveau_mc_create_((p), (e), (o), sizeof(**d), (void **)d) +#define nouveau_mc_create(p,e,o,m,d) \ + nouveau_mc_create_((p), (e), (o), (m), sizeof(**d), (void **)d) #define nouveau_mc_destroy(p) ({ \ struct nouveau_mc *pmc = (p); _nouveau_mc_dtor(nv_object(pmc)); \ }) @@ -33,7 +33,8 @@ nouveau_mc(void *obj) }) int nouveau_mc_create_(struct nouveau_object *, struct nouveau_object *, - struct nouveau_oclass *, int, void **); + struct nouveau_oclass *, const struct nouveau_mc_intr *, + int, void **); void _nouveau_mc_dtor(struct nouveau_object *); int _nouveau_mc_init(struct nouveau_object *); int _nouveau_mc_fini(struct nouveau_object *, bool); diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c index 19e3a9a63a02..ab7ef0ac9e34 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c @@ -40,15 +40,15 @@ nv49_ram_create(struct nouveau_object *parent, struct nouveau_object *engine, return ret; switch (pfb914 & 0x00000003) { - case 0x00000000: pfb->ram->type = NV_MEM_TYPE_DDR1; break; - case 0x00000001: pfb->ram->type = NV_MEM_TYPE_DDR2; break; - case 0x00000002: pfb->ram->type = NV_MEM_TYPE_GDDR3; break; + case 0x00000000: ram->type = NV_MEM_TYPE_DDR1; break; + case 0x00000001: ram->type = NV_MEM_TYPE_DDR2; break; + case 0x00000002: ram->type = NV_MEM_TYPE_GDDR3; break; case 0x00000003: break; } - pfb->ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000; - pfb->ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1; - pfb->ram->tags = nv_rd32(pfb, 0x100320); + ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000; + ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1; + ram->tags = nv_rd32(pfb, 0x100320); return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c index 7192aa6e5577..63a6aab86028 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c @@ -38,8 +38,8 @@ nv4e_ram_create(struct nouveau_object *parent, struct nouveau_object *engine, if (ret) return ret; - pfb->ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000; - pfb->ram->type = NV_MEM_TYPE_STOLEN; + ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000; + ram->type = NV_MEM_TYPE_STOLEN; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c index bcca883018f4..cce65cc56514 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c @@ -30,8 +30,9 @@ struct nvc0_ltcg_priv { struct nouveau_ltcg base; u32 part_nr; u32 subp_nr; - struct nouveau_mm tags; u32 num_tags; + u32 tag_base; + struct nouveau_mm tags; struct nouveau_mm_node *tag_ram; }; @@ -117,10 +118,6 @@ nvc0_ltcg_init_tag_ram(struct nouveau_fb *pfb, struct nvc0_ltcg_priv *priv) u32 tag_size, tag_margin, tag_align; int ret; - nv_wr32(priv, 0x17e8d8, priv->part_nr); - if (nv_device(pfb)->card_type >= NV_E0) - nv_wr32(priv, 0x17e000, priv->part_nr); - /* tags for 1/4 of VRAM should be enough (8192/4 per GiB of VRAM) */ priv->num_tags = (pfb->ram->size >> 17) / 4; if (priv->num_tags > (1 << 17)) @@ -142,7 +139,7 @@ nvc0_ltcg_init_tag_ram(struct nouveau_fb *pfb, struct nvc0_ltcg_priv *priv) tag_size += tag_align; tag_size = (tag_size + 0xfff) >> 12; /* round up */ - ret = nouveau_mm_tail(&pfb->vram, 0, tag_size, tag_size, 1, + ret = nouveau_mm_tail(&pfb->vram, 1, tag_size, tag_size, 1, &priv->tag_ram); if (ret) { priv->num_tags = 0; @@ -152,7 +149,7 @@ nvc0_ltcg_init_tag_ram(struct nouveau_fb *pfb, struct nvc0_ltcg_priv *priv) tag_base += tag_align - 1; ret = do_div(tag_base, tag_align); - nv_wr32(priv, 0x17e8d4, tag_base); + priv->tag_base = tag_base; } ret = nouveau_mm_init(&priv->tags, 0, priv->num_tags, 1); @@ -182,8 +179,6 @@ nvc0_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine, } priv->subp_nr = nv_rd32(priv, 0x17e8dc) >> 28; - nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */ - ret = nvc0_ltcg_init_tag_ram(pfb, priv); if (ret) return ret; @@ -209,13 +204,32 @@ nvc0_ltcg_dtor(struct nouveau_object *object) nouveau_ltcg_destroy(ltcg); } +static int +nvc0_ltcg_init(struct nouveau_object *object) +{ + struct nouveau_ltcg *ltcg = (struct nouveau_ltcg *)object; + struct nvc0_ltcg_priv *priv = (struct nvc0_ltcg_priv *)ltcg; + int ret; + + ret = nouveau_ltcg_init(ltcg); + if (ret) + return ret; + + nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */ + nv_wr32(priv, 0x17e8d8, priv->part_nr); + if (nv_device(ltcg)->card_type >= NV_E0) + nv_wr32(priv, 0x17e000, priv->part_nr); + nv_wr32(priv, 0x17e8d4, priv->tag_base); + return 0; +} + struct nouveau_oclass nvc0_ltcg_oclass = { .handle = NV_SUBDEV(LTCG, 0xc0), .ofuncs = &(struct nouveau_ofuncs) { .ctor = nvc0_ltcg_ctor, .dtor = nvc0_ltcg_dtor, - .init = _nouveau_ltcg_init, + .init = nvc0_ltcg_init, .fini = _nouveau_ltcg_fini, }, }; diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c index 1c0330b8c9a4..ec9cd6f10f91 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c @@ -80,7 +80,9 @@ _nouveau_mc_dtor(struct nouveau_object *object) int nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine, - struct nouveau_oclass *oclass, int length, void **pobject) + struct nouveau_oclass *oclass, + const struct nouveau_mc_intr *intr_map, + int length, void **pobject) { struct nouveau_device *device = nv_device(parent); struct nouveau_mc *pmc; @@ -92,6 +94,8 @@ nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine, if (ret) return ret; + pmc->intr_map = intr_map; + ret = request_irq(device->pdev->irq, nouveau_mc_intr, IRQF_SHARED, "nouveau", pmc); if (ret < 0) diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c index 8c769715227b..64aa4edb0d9d 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c @@ -50,12 +50,11 @@ nv04_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv04_mc_priv *priv; int ret; - ret = nouveau_mc_create(parent, engine, oclass, &priv); + ret = nouveau_mc_create(parent, engine, oclass, nv04_mc_intr, &priv); *pobject = nv_object(priv); if (ret) return ret; - priv->base.intr_map = nv04_mc_intr; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c index 51919371810f..d9891782bf28 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c @@ -36,12 +36,11 @@ nv44_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv44_mc_priv *priv; int ret; - ret = nouveau_mc_create(parent, engine, oclass, &priv); + ret = nouveau_mc_create(parent, engine, oclass, nv04_mc_intr, &priv); *pobject = nv_object(priv); if (ret) return ret; - priv->base.intr_map = nv04_mc_intr; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c index f25fc5fc7dd1..2b1afe225db8 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c @@ -53,12 +53,11 @@ nv50_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv50_mc_priv *priv; int ret; - ret = nouveau_mc_create(parent, engine, oclass, &priv); + ret = nouveau_mc_create(parent, engine, oclass, nv50_mc_intr, &priv); *pobject = nv_object(priv); if (ret) return ret; - priv->base.intr_map = nv50_mc_intr; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c index e82fd21b5041..0d57b4d3e001 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c @@ -54,12 +54,11 @@ nv98_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv98_mc_priv *priv; int ret; - ret = nouveau_mc_create(parent, engine, oclass, &priv); + ret = nouveau_mc_create(parent, engine, oclass, nv98_mc_intr, &priv); *pobject = nv_object(priv); if (ret) return ret; - priv->base.intr_map = nv98_mc_intr; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c index c5da3babbc62..104175c5a2dd 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c @@ -57,12 +57,11 @@ nvc0_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nvc0_mc_priv *priv; int ret; - ret = nouveau_mc_create(parent, engine, oclass, &priv); + ret = nouveau_mc_create(parent, engine, oclass, nvc0_mc_intr, &priv); *pobject = nv_object(priv); if (ret) return ret; - priv->base.intr_map = nvc0_mc_intr; return 0; } diff --git a/drivers/gpu/drm/nouveau/dispnv04/crtc.c b/drivers/gpu/drm/nouveau/dispnv04/crtc.c index 0782bd2f1e04..6a13ffb53bdb 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/crtc.c +++ b/drivers/gpu/drm/nouveau/dispnv04/crtc.c @@ -606,6 +606,24 @@ nv_crtc_mode_set_regs(struct drm_crtc *crtc, struct drm_display_mode * mode) regp->ramdac_a34 = 0x1; } +static int +nv_crtc_swap_fbs(struct drm_crtc *crtc, struct drm_framebuffer *old_fb) +{ + struct nv04_display *disp = nv04_display(crtc->dev); + struct nouveau_framebuffer *nvfb = nouveau_framebuffer(crtc->fb); + struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); + int ret; + + ret = nouveau_bo_pin(nvfb->nvbo, TTM_PL_FLAG_VRAM); + if (ret == 0) { + if (disp->image[nv_crtc->index]) + nouveau_bo_unpin(disp->image[nv_crtc->index]); + nouveau_bo_ref(nvfb->nvbo, &disp->image[nv_crtc->index]); + } + + return ret; +} + /** * Sets up registers for the given mode/adjusted_mode pair. * @@ -622,10 +640,15 @@ nv_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_device *dev = crtc->dev; struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); struct nouveau_drm *drm = nouveau_drm(dev); + int ret; NV_DEBUG(drm, "CTRC mode on CRTC %d:\n", nv_crtc->index); drm_mode_debug_printmodeline(adjusted_mode); + ret = nv_crtc_swap_fbs(crtc, old_fb); + if (ret) + return ret; + /* unlock must come after turning off FP_TG_CONTROL in output_prepare */ nv_lock_vga_crtc_shadow(dev, nv_crtc->index, -1); @@ -722,6 +745,7 @@ static void nv_crtc_commit(struct drm_crtc *crtc) static void nv_crtc_destroy(struct drm_crtc *crtc) { + struct nv04_display *disp = nv04_display(crtc->dev); struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); if (!nv_crtc) @@ -729,6 +753,10 @@ static void nv_crtc_destroy(struct drm_crtc *crtc) drm_crtc_cleanup(crtc); + if (disp->image[nv_crtc->index]) + nouveau_bo_unpin(disp->image[nv_crtc->index]); + nouveau_bo_ref(NULL, &disp->image[nv_crtc->index]); + nouveau_bo_unmap(nv_crtc->cursor.nvbo); nouveau_bo_unpin(nv_crtc->cursor.nvbo); nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo); @@ -754,6 +782,16 @@ nv_crtc_gamma_load(struct drm_crtc *crtc) } static void +nv_crtc_disable(struct drm_crtc *crtc) +{ + struct nv04_display *disp = nv04_display(crtc->dev); + struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); + if (disp->image[nv_crtc->index]) + nouveau_bo_unpin(disp->image[nv_crtc->index]); + nouveau_bo_ref(NULL, &disp->image[nv_crtc->index]); +} + +static void nv_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, uint32_t start, uint32_t size) { @@ -791,7 +829,6 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc, struct drm_framebuffer *drm_fb; struct nouveau_framebuffer *fb; int arb_burst, arb_lwm; - int ret; NV_DEBUG(drm, "index %d\n", nv_crtc->index); @@ -801,10 +838,8 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc, return 0; } - /* If atomic, we want to switch to the fb we were passed, so - * now we update pointers to do that. (We don't pin; just - * assume we're already pinned and update the base address.) + * now we update pointers to do that. */ if (atomic) { drm_fb = passed_fb; @@ -812,17 +847,6 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc, } else { drm_fb = crtc->fb; fb = nouveau_framebuffer(crtc->fb); - /* If not atomic, we can go ahead and pin, and unpin the - * old fb we were passed. - */ - ret = nouveau_bo_pin(fb->nvbo, TTM_PL_FLAG_VRAM); - if (ret) - return ret; - - if (passed_fb) { - struct nouveau_framebuffer *ofb = nouveau_framebuffer(passed_fb); - nouveau_bo_unpin(ofb->nvbo); - } } nv_crtc->fb.offset = fb->nvbo->bo.offset; @@ -877,6 +901,9 @@ static int nv04_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb) { + int ret = nv_crtc_swap_fbs(crtc, old_fb); + if (ret) + return ret; return nv04_crtc_do_mode_set_base(crtc, old_fb, x, y, false); } @@ -1027,6 +1054,7 @@ static const struct drm_crtc_helper_funcs nv04_crtc_helper_funcs = { .mode_set_base = nv04_crtc_mode_set_base, .mode_set_base_atomic = nv04_crtc_mode_set_base_atomic, .load_lut = nv_crtc_gamma_load, + .disable = nv_crtc_disable, }; int diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.h b/drivers/gpu/drm/nouveau/dispnv04/disp.h index a0a031dad13f..9928187f0a7d 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/disp.h +++ b/drivers/gpu/drm/nouveau/dispnv04/disp.h @@ -81,6 +81,7 @@ struct nv04_display { uint32_t saved_vga_font[4][16384]; uint32_t dac_users[4]; struct nouveau_object *core; + struct nouveau_bo *image[2]; }; static inline struct nv04_display * diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 907d20ef6d4d..a03e75deacaf 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -577,6 +577,9 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, ret = nv50_display_flip_next(crtc, fb, chan, 0); if (ret) goto fail_unreserve; + } else { + struct nv04_display *dispnv04 = nv04_display(dev); + nouveau_bo_ref(new_bo, &dispnv04->image[nouveau_crtc(crtc)->index]); } ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence); diff --git a/drivers/gpu/drm/nouveau/nv40_pm.c b/drivers/gpu/drm/nouveau/nv40_pm.c index 3af5bcd0b203..625f80d53dc2 100644 --- a/drivers/gpu/drm/nouveau/nv40_pm.c +++ b/drivers/gpu/drm/nouveau/nv40_pm.c @@ -131,7 +131,7 @@ nv40_calc_pll(struct drm_device *dev, u32 reg, struct nvbios_pll *pll, if (clk < pll->vco1.max_freq) pll->vco2.max_freq = 0; - pclk->pll_calc(pclk, pll, clk, &coef); + ret = pclk->pll_calc(pclk, pll, clk, &coef); if (ret == 0) return -ERANGE; diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 274b8e1b889f..9f19259667df 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2163,7 +2163,7 @@ void cik_mm_wdoorbell(struct radeon_device *rdev, u32 offset, u32 v); WREG32(reg, tmp_); \ } while (0) #define WREG32_AND(reg, and) WREG32_P(reg, 0, and) -#define WREG32_OR(reg, or) WREG32_P(reg, or, ~or) +#define WREG32_OR(reg, or) WREG32_P(reg, or, ~(or)) #define WREG32_PLL_P(reg, val, mask) \ do { \ uint32_t tmp_ = RREG32_PLL(reg); \ diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c index f1c15754e73c..b79f4f5cdd62 100644 --- a/drivers/gpu/drm/radeon/radeon_uvd.c +++ b/drivers/gpu/drm/radeon/radeon_uvd.c @@ -356,6 +356,14 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo, return -EINVAL; } + if (bo->tbo.sync_obj) { + r = radeon_fence_wait(bo->tbo.sync_obj, false); + if (r) { + DRM_ERROR("Failed waiting for UVD message (%d)!\n", r); + return r; + } + } + r = radeon_bo_kmap(bo, &ptr); if (r) { DRM_ERROR("Failed mapping the UVD message (%d)!\n", r); diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index bcc68ec204ad..f5e92cfcc140 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -744,10 +744,10 @@ static void rv770_init_golden_registers(struct radeon_device *rdev) (const u32)ARRAY_SIZE(r7xx_golden_dyn_gpr_registers)); radeon_program_register_sequence(rdev, rv730_golden_registers, - (const u32)ARRAY_SIZE(rv770_golden_registers)); + (const u32)ARRAY_SIZE(rv730_golden_registers)); radeon_program_register_sequence(rdev, rv730_mgcg_init, - (const u32)ARRAY_SIZE(rv770_mgcg_init)); + (const u32)ARRAY_SIZE(rv730_mgcg_init)); break; case CHIP_RV710: radeon_program_register_sequence(rdev, @@ -758,18 +758,18 @@ static void rv770_init_golden_registers(struct radeon_device *rdev) (const u32)ARRAY_SIZE(r7xx_golden_dyn_gpr_registers)); radeon_program_register_sequence(rdev, rv710_golden_registers, - (const u32)ARRAY_SIZE(rv770_golden_registers)); + (const u32)ARRAY_SIZE(rv710_golden_registers)); radeon_program_register_sequence(rdev, rv710_mgcg_init, - (const u32)ARRAY_SIZE(rv770_mgcg_init)); + (const u32)ARRAY_SIZE(rv710_mgcg_init)); break; case CHIP_RV740: radeon_program_register_sequence(rdev, rv740_golden_registers, - (const u32)ARRAY_SIZE(rv770_golden_registers)); + (const u32)ARRAY_SIZE(rv740_golden_registers)); radeon_program_register_sequence(rdev, rv740_mgcg_init, - (const u32)ARRAY_SIZE(rv770_mgcg_init)); + (const u32)ARRAY_SIZE(rv740_mgcg_init)); break; default: break; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c index 3751730764a5..1a0bf07fe54b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c @@ -29,7 +29,9 @@ #include <drm/drmP.h> #include <drm/ttm/ttm_bo_driver.h> -#define VMW_PPN_SIZE sizeof(unsigned long) +#define VMW_PPN_SIZE (sizeof(unsigned long)) +/* A future safe maximum remap size. */ +#define VMW_PPN_PER_REMAP ((31 * 1024) / VMW_PPN_SIZE) static int vmw_gmr2_bind(struct vmw_private *dev_priv, struct page *pages[], @@ -38,43 +40,61 @@ static int vmw_gmr2_bind(struct vmw_private *dev_priv, { SVGAFifoCmdDefineGMR2 define_cmd; SVGAFifoCmdRemapGMR2 remap_cmd; - uint32_t define_size = sizeof(define_cmd) + 4; - uint32_t remap_size = VMW_PPN_SIZE * num_pages + sizeof(remap_cmd) + 4; uint32_t *cmd; uint32_t *cmd_orig; + uint32_t define_size = sizeof(define_cmd) + sizeof(*cmd); + uint32_t remap_num = num_pages / VMW_PPN_PER_REMAP + ((num_pages % VMW_PPN_PER_REMAP) > 0); + uint32_t remap_size = VMW_PPN_SIZE * num_pages + (sizeof(remap_cmd) + sizeof(*cmd)) * remap_num; + uint32_t remap_pos = 0; + uint32_t cmd_size = define_size + remap_size; uint32_t i; - cmd_orig = cmd = vmw_fifo_reserve(dev_priv, define_size + remap_size); + cmd_orig = cmd = vmw_fifo_reserve(dev_priv, cmd_size); if (unlikely(cmd == NULL)) return -ENOMEM; define_cmd.gmrId = gmr_id; define_cmd.numPages = num_pages; + *cmd++ = SVGA_CMD_DEFINE_GMR2; + memcpy(cmd, &define_cmd, sizeof(define_cmd)); + cmd += sizeof(define_cmd) / sizeof(*cmd); + + /* + * Need to split the command if there are too many + * pages that goes into the gmr. + */ + remap_cmd.gmrId = gmr_id; remap_cmd.flags = (VMW_PPN_SIZE > sizeof(*cmd)) ? SVGA_REMAP_GMR2_PPN64 : SVGA_REMAP_GMR2_PPN32; - remap_cmd.offsetPages = 0; - remap_cmd.numPages = num_pages; - *cmd++ = SVGA_CMD_DEFINE_GMR2; - memcpy(cmd, &define_cmd, sizeof(define_cmd)); - cmd += sizeof(define_cmd) / sizeof(uint32); + while (num_pages > 0) { + unsigned long nr = min(num_pages, (unsigned long)VMW_PPN_PER_REMAP); + + remap_cmd.offsetPages = remap_pos; + remap_cmd.numPages = nr; - *cmd++ = SVGA_CMD_REMAP_GMR2; - memcpy(cmd, &remap_cmd, sizeof(remap_cmd)); - cmd += sizeof(remap_cmd) / sizeof(uint32); + *cmd++ = SVGA_CMD_REMAP_GMR2; + memcpy(cmd, &remap_cmd, sizeof(remap_cmd)); + cmd += sizeof(remap_cmd) / sizeof(*cmd); - for (i = 0; i < num_pages; ++i) { - if (VMW_PPN_SIZE <= 4) - *cmd = page_to_pfn(*pages++); - else - *((uint64_t *)cmd) = page_to_pfn(*pages++); + for (i = 0; i < nr; ++i) { + if (VMW_PPN_SIZE <= 4) + *cmd = page_to_pfn(*pages++); + else + *((uint64_t *)cmd) = page_to_pfn(*pages++); - cmd += VMW_PPN_SIZE / sizeof(*cmd); + cmd += VMW_PPN_SIZE / sizeof(*cmd); + } + + num_pages -= nr; + remap_pos += nr; } - vmw_fifo_commit(dev_priv, define_size + remap_size); + BUG_ON(cmd != cmd_orig + cmd_size / sizeof(*cmd)); + + vmw_fifo_commit(dev_priv, cmd_size); return 0; } diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index e989f7fd645b..b3ab9d43bb3e 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -296,8 +296,8 @@ config SENSORS_K10TEMP If you say yes here you get support for the temperature sensor(s) inside your CPU. Supported are later revisions of the AMD Family 10h and all revisions of the AMD Family 11h, - 12h (Llano), 14h (Brazos) and 15h (Bulldozer/Trinity) - microarchitectures. + 12h (Llano), 14h (Brazos), 15h (Bulldozer/Trinity) and + 16h (Kabini) microarchitectures. This driver can also be built as a module. If so, the module will be called k10temp. @@ -511,6 +511,16 @@ config SENSORS_HIH6130 This driver can also be built as a module. If so, the module will be called hih6130. +config SENSORS_HTU21 + tristate "Measurement Specialties HTU21D humidity/temperature sensors" + depends on I2C + help + If you say yes here you get support for the Measurement Specialties + HTU21D humidity and temperature sensors. + + This driver can also be built as a module. If so, the module + will be called htu21. + config SENSORS_CORETEMP tristate "Intel Core/Core2/Atom temperature sensor" depends on X86 @@ -1202,8 +1212,8 @@ config SENSORS_ADS1015 tristate "Texas Instruments ADS1015" depends on I2C help - If you say yes here you get support for Texas Instruments ADS1015 - 12-bit 4-input ADC device. + If you say yes here you get support for Texas Instruments + ADS1015/ADS1115 12/16-bit 4-input ADC device. This driver can also be built as a module. If so, the module will be called ads1015. diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 4f0fb5235f42..ec7cde06eb52 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o obj-$(CONFIG_SENSORS_GPIO_FAN) += gpio-fan.o obj-$(CONFIG_SENSORS_HIH6130) += hih6130.o +obj-$(CONFIG_SENSORS_HTU21) += htu21.o obj-$(CONFIG_SENSORS_ULTRA45) += ultra45_env.o obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o obj-$(CONFIG_SENSORS_IBMAEM) += ibmaem.o diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 6351aba8819c..a9e3d0152c0b 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -2,7 +2,7 @@ * A hwmon driver for ACPI 4.0 power meters * Copyright (C) 2009 IBM * - * Author: Darrick J. Wong <djwong@us.ibm.com> + * Author: Darrick J. Wong <darrick.wong@oracle.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -1001,7 +1001,7 @@ static void __exit acpi_power_meter_exit(void) acpi_bus_unregister_driver(&acpi_power_meter_driver); } -MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); MODULE_DESCRIPTION("ACPI 4.0 power meter driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c index 2798246ad814..7f9dc2f86b63 100644 --- a/drivers/hwmon/ads1015.c +++ b/drivers/hwmon/ads1015.c @@ -46,17 +46,28 @@ static const unsigned int fullscale_table[8] = { 6144, 4096, 2048, 1024, 512, 256, 256, 256 }; /* Data rates in samples per second */ -static const unsigned int data_rate_table[8] = { - 128, 250, 490, 920, 1600, 2400, 3300, 3300 }; +static const unsigned int data_rate_table_1015[8] = { + 128, 250, 490, 920, 1600, 2400, 3300, 3300 +}; + +static const unsigned int data_rate_table_1115[8] = { + 8, 16, 32, 64, 128, 250, 475, 860 +}; #define ADS1015_DEFAULT_CHANNELS 0xff #define ADS1015_DEFAULT_PGA 2 #define ADS1015_DEFAULT_DATA_RATE 4 +enum ads1015_chips { + ads1015, + ads1115, +}; + struct ads1015_data { struct device *hwmon_dev; struct mutex update_lock; /* mutex protect updates */ struct ads1015_channel_data channel_data[ADS1015_CHANNELS]; + enum ads1015_chips id; }; static int ads1015_read_adc(struct i2c_client *client, unsigned int channel) @@ -66,6 +77,8 @@ static int ads1015_read_adc(struct i2c_client *client, unsigned int channel) unsigned int pga = data->channel_data[channel].pga; unsigned int data_rate = data->channel_data[channel].data_rate; unsigned int conversion_time_ms; + const unsigned int * const rate_table = data->id == ads1115 ? + data_rate_table_1115 : data_rate_table_1015; int res; mutex_lock(&data->update_lock); @@ -75,7 +88,7 @@ static int ads1015_read_adc(struct i2c_client *client, unsigned int channel) if (res < 0) goto err_unlock; config = res; - conversion_time_ms = DIV_ROUND_UP(1000, data_rate_table[data_rate]); + conversion_time_ms = DIV_ROUND_UP(1000, rate_table[data_rate]); /* setup and start single conversion */ config &= 0x001f; @@ -113,8 +126,9 @@ static int ads1015_reg_to_mv(struct i2c_client *client, unsigned int channel, struct ads1015_data *data = i2c_get_clientdata(client); unsigned int pga = data->channel_data[channel].pga; int fullscale = fullscale_table[pga]; + const unsigned mask = data->id == ads1115 ? 0x7fff : 0x7ff0; - return DIV_ROUND_CLOSEST(reg * fullscale, 0x7ff0); + return DIV_ROUND_CLOSEST(reg * fullscale, mask); } /* sysfs callback function */ @@ -257,7 +271,7 @@ static int ads1015_probe(struct i2c_client *client, GFP_KERNEL); if (!data) return -ENOMEM; - + data->id = id->driver_data; i2c_set_clientdata(client, data); mutex_init(&data->update_lock); @@ -286,7 +300,8 @@ exit_remove: } static const struct i2c_device_id ads1015_id[] = { - { "ads1015", 0 }, + { "ads1015", ads1015}, + { "ads1115", ads1115}, { } }; MODULE_DEVICE_TABLE(i2c, ads1015_id); diff --git a/drivers/hwmon/ads7828.c b/drivers/hwmon/ads7828.c index ba962ac4b81f..7092c78f814f 100644 --- a/drivers/hwmon/ads7828.c +++ b/drivers/hwmon/ads7828.c @@ -145,7 +145,7 @@ static int ads7828_remove(struct i2c_client *client) static int ads7828_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct ads7828_platform_data *pdata = client->dev.platform_data; + struct ads7828_platform_data *pdata = dev_get_platdata(&client->dev); struct ads7828_data *data; int err; diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c index 69481d3a3d23..addb5a4d5064 100644 --- a/drivers/hwmon/adt7462.c +++ b/drivers/hwmon/adt7462.c @@ -2,7 +2,7 @@ * A hwmon driver for the Analog Devices ADT7462 * Copyright (C) 2008 IBM * - * Author: Darrick J. Wong <djwong@us.ibm.com> + * Author: Darrick J. Wong <darrick.wong@oracle.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -333,7 +333,7 @@ static int ADT7462_REG_VOLT_MAX(struct adt7462_data *data, int which) return 0x4C; break; } - return -ENODEV; + return 0; } static int ADT7462_REG_VOLT_MIN(struct adt7462_data *data, int which) @@ -392,7 +392,7 @@ static int ADT7462_REG_VOLT_MIN(struct adt7462_data *data, int which) return 0x77; break; } - return -ENODEV; + return 0; } static int ADT7462_REG_VOLT(struct adt7462_data *data, int which) @@ -1970,6 +1970,6 @@ static int adt7462_remove(struct i2c_client *client) module_i2c_driver(adt7462_driver); -MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); MODULE_DESCRIPTION("ADT7462 driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c index 6099f50b28aa..0f4dea5ccf17 100644 --- a/drivers/hwmon/adt7470.c +++ b/drivers/hwmon/adt7470.c @@ -2,7 +2,7 @@ * A hwmon driver for the Analog Devices ADT7470 * Copyright (C) 2007 IBM * - * Author: Darrick J. Wong <djwong@us.ibm.com> + * Author: Darrick J. Wong <darrick.wong@oracle.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -1314,6 +1314,6 @@ static int adt7470_remove(struct i2c_client *client) module_i2c_driver(adt7470_driver); -MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); MODULE_DESCRIPTION("ADT7470 driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 2e5e2dc47eaf..78be66176840 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -316,6 +316,18 @@ static int adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) return tjmax; } +static bool cpu_has_tjmax(struct cpuinfo_x86 *c) +{ + u8 model = c->x86_model; + + return model > 0xe && + model != 0x1c && + model != 0x26 && + model != 0x27 && + model != 0x35 && + model != 0x36; +} + static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) { int err; @@ -328,7 +340,7 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) */ err = rdmsr_safe_on_cpu(id, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx); if (err) { - if (c->x86_model > 0xe && c->x86_model != 0x1c) + if (cpu_has_tjmax(c)) dev_warn(dev, "Unable to read TjMax from CPU %u\n", id); } else { val = (eax >> 16) & 0xff; diff --git a/drivers/hwmon/ds620.c b/drivers/hwmon/ds620.c index f1d6b422cf06..0918b9136588 100644 --- a/drivers/hwmon/ds620.c +++ b/drivers/hwmon/ds620.c @@ -77,7 +77,7 @@ struct ds620_data { static void ds620_init_client(struct i2c_client *client) { - struct ds620_platform_data *ds620_info = client->dev.platform_data; + struct ds620_platform_data *ds620_info = dev_get_platdata(&client->dev); u16 conf, new_conf; new_conf = conf = diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c index 0c9f3da242bf..15b7f5281def 100644 --- a/drivers/hwmon/f71805f.c +++ b/drivers/hwmon/f71805f.c @@ -1375,7 +1375,7 @@ static void f71805f_init_device(struct f71805f_data *data) static int f71805f_probe(struct platform_device *pdev) { - struct f71805f_sio_data *sio_data = pdev->dev.platform_data; + struct f71805f_sio_data *sio_data = dev_get_platdata(&pdev->dev); struct f71805f_data *data; struct resource *res; int i, err; diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c index cfb02dd91aad..31b221eeee6c 100644 --- a/drivers/hwmon/f71882fg.c +++ b/drivers/hwmon/f71882fg.c @@ -2267,7 +2267,7 @@ static int f71882fg_create_fan_sysfs_files( static int f71882fg_probe(struct platform_device *pdev) { struct f71882fg_data *data; - struct f71882fg_sio_data *sio_data = pdev->dev.platform_data; + struct f71882fg_sio_data *sio_data = dev_get_platdata(&pdev->dev); int nr_fans = f71882fg_nr_fans[sio_data->type]; int nr_temps = f71882fg_nr_temps[sio_data->type]; int err, i; diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c index 9e300e567f15..a837b94977f4 100644 --- a/drivers/hwmon/f75375s.c +++ b/drivers/hwmon/f75375s.c @@ -832,7 +832,8 @@ static int f75375_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct f75375_data *data; - struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data; + struct f75375s_platform_data *f75375s_pdata = + dev_get_platdata(&client->dev); int err; if (!i2c_check_functionality(client->adapter, diff --git a/drivers/hwmon/g762.c b/drivers/hwmon/g762.c index 73adf01b0ef2..b4b8b5bef718 100644 --- a/drivers/hwmon/g762.c +++ b/drivers/hwmon/g762.c @@ -717,7 +717,7 @@ static void g762_of_clock_disable(struct i2c_client *client) { } static int g762_pdata_prop_import(struct i2c_client *client) { - struct g762_platform_data *pdata = client->dev.platform_data; + struct g762_platform_data *pdata = dev_get_platdata(&client->dev); int ret; if (!pdata) diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index 3104149795c5..b7d6a5704eb2 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -495,7 +495,7 @@ static int gpio_fan_probe(struct platform_device *pdev) { int err; struct gpio_fan_data *fan_data; - struct gpio_fan_platform_data *pdata = pdev->dev.platform_data; + struct gpio_fan_platform_data *pdata = dev_get_platdata(&pdev->dev); #ifdef CONFIG_OF_GPIO if (!pdata) { diff --git a/drivers/hwmon/htu21.c b/drivers/hwmon/htu21.c new file mode 100644 index 000000000000..839086e0e951 --- /dev/null +++ b/drivers/hwmon/htu21.c @@ -0,0 +1,199 @@ +/* + * Measurement Specialties HTU21D humidity and temperature sensor driver + * + * Copyright (C) 2013 William Markezana <william.markezana@meas-spec.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/device.h> +#include <linux/jiffies.h> + +/* HTU21 Commands */ +#define HTU21_T_MEASUREMENT_HM 0xE3 +#define HTU21_RH_MEASUREMENT_HM 0xE5 + +struct htu21 { + struct device *hwmon_dev; + struct mutex lock; + bool valid; + unsigned long last_update; + int temperature; + int humidity; +}; + +static inline int htu21_temp_ticks_to_millicelsius(int ticks) +{ + ticks &= ~0x0003; /* clear status bits */ + /* + * Formula T = -46.85 + 175.72 * ST / 2^16 from datasheet p14, + * optimized for integer fixed point (3 digits) arithmetic + */ + return ((21965 * ticks) >> 13) - 46850; +} + +static inline int htu21_rh_ticks_to_per_cent_mille(int ticks) +{ + ticks &= ~0x0003; /* clear status bits */ + /* + * Formula RH = -6 + 125 * SRH / 2^16 from datasheet p14, + * optimized for integer fixed point (3 digits) arithmetic + */ + return ((15625 * ticks) >> 13) - 6000; +} + +static int htu21_update_measurements(struct i2c_client *client) +{ + int ret = 0; + struct htu21 *htu21 = i2c_get_clientdata(client); + + mutex_lock(&htu21->lock); + + if (time_after(jiffies, htu21->last_update + HZ / 2) || + !htu21->valid) { + ret = i2c_smbus_read_word_swapped(client, + HTU21_T_MEASUREMENT_HM); + if (ret < 0) + goto out; + htu21->temperature = htu21_temp_ticks_to_millicelsius(ret); + ret = i2c_smbus_read_word_swapped(client, + HTU21_RH_MEASUREMENT_HM); + if (ret < 0) + goto out; + htu21->humidity = htu21_rh_ticks_to_per_cent_mille(ret); + htu21->last_update = jiffies; + htu21->valid = true; + } +out: + mutex_unlock(&htu21->lock); + + return ret >= 0 ? 0 : ret; +} + +static ssize_t htu21_show_temperature(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct htu21 *htu21 = i2c_get_clientdata(client); + int ret = htu21_update_measurements(client); + if (ret < 0) + return ret; + return sprintf(buf, "%d\n", htu21->temperature); +} + +static ssize_t htu21_show_humidity(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct htu21 *htu21 = i2c_get_clientdata(client); + int ret = htu21_update_measurements(client); + if (ret < 0) + return ret; + return sprintf(buf, "%d\n", htu21->humidity); +} + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, + htu21_show_temperature, NULL, 0); +static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO, + htu21_show_humidity, NULL, 0); + +static struct attribute *htu21_attributes[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_humidity1_input.dev_attr.attr, + NULL +}; + +static const struct attribute_group htu21_group = { + .attrs = htu21_attributes, +}; + +static int htu21_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct htu21 *htu21; + int err; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_READ_WORD_DATA)) { + dev_err(&client->dev, + "adapter does not support SMBus word transactions\n"); + return -ENODEV; + } + + htu21 = devm_kzalloc(&client->dev, sizeof(*htu21), GFP_KERNEL); + if (!htu21) + return -ENOMEM; + + i2c_set_clientdata(client, htu21); + + mutex_init(&htu21->lock); + + err = sysfs_create_group(&client->dev.kobj, &htu21_group); + if (err) { + dev_dbg(&client->dev, "could not create sysfs files\n"); + return err; + } + htu21->hwmon_dev = hwmon_device_register(&client->dev); + if (IS_ERR(htu21->hwmon_dev)) { + dev_dbg(&client->dev, "unable to register hwmon device\n"); + err = PTR_ERR(htu21->hwmon_dev); + goto error; + } + + dev_info(&client->dev, "initialized\n"); + + return 0; + +error: + sysfs_remove_group(&client->dev.kobj, &htu21_group); + return err; +} + +static int htu21_remove(struct i2c_client *client) +{ + struct htu21 *htu21 = i2c_get_clientdata(client); + + hwmon_device_unregister(htu21->hwmon_dev); + sysfs_remove_group(&client->dev.kobj, &htu21_group); + + return 0; +} + +static const struct i2c_device_id htu21_id[] = { + { "htu21", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, htu21_id); + +static struct i2c_driver htu21_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "htu21", + }, + .probe = htu21_probe, + .remove = htu21_remove, + .id_table = htu21_id, +}; + +module_i2c_driver(htu21_driver); + +MODULE_AUTHOR("William Markezana <william.markezana@meas-spec.com>"); +MODULE_DESCRIPTION("MEAS HTU21D humidity and temperature sensor driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c index de058c278aa9..6c0080a3b902 100644 --- a/drivers/hwmon/i5k_amb.c +++ b/drivers/hwmon/i5k_amb.c @@ -3,7 +3,7 @@ * temperature sensors * Copyright (C) 2007 IBM * - * Author: Darrick J. Wong <djwong@us.ibm.com> + * Author: Darrick J. Wong <darrick.wong@oracle.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -609,7 +609,7 @@ static void __exit i5k_amb_exit(void) platform_driver_unregister(&i5k_amb_driver); } -MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); MODULE_DESCRIPTION("Intel 5000 chipset FB-DIMM AMB temperature sensor"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c index 1429f6e177f4..e2b56a2b756c 100644 --- a/drivers/hwmon/ibmaem.c +++ b/drivers/hwmon/ibmaem.c @@ -3,7 +3,7 @@ * temperature/power/energy sensors and capping functionality. * Copyright (C) 2008 IBM * - * Author: Darrick J. Wong <djwong@us.ibm.com> + * Author: Darrick J. Wong <darrick.wong@oracle.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -1103,7 +1103,7 @@ static void __exit aem_exit(void) aem_delete(p1); } -MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); MODULE_DESCRIPTION("IBM AEM power/temp/energy sensor driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/ibmpex.c b/drivers/hwmon/ibmpex.c index 74b365ea01c7..20ab0fb85395 100644 --- a/drivers/hwmon/ibmpex.c +++ b/drivers/hwmon/ibmpex.c @@ -2,7 +2,7 @@ * A hwmon driver for the IBM PowerExecutive temperature/power sensors * Copyright (C) 2007 IBM * - * Author: Darrick J. Wong <djwong@us.ibm.com> + * Author: Darrick J. Wong <darrick.wong@oracle.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -606,7 +606,7 @@ static void __exit ibmpex_exit(void) ibmpex_bmc_delete(p); } -MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); MODULE_DESCRIPTION("IBM PowerExecutive power/temperature sensor driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index d917a2d8c30f..18c062360ca7 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -232,9 +232,9 @@ static int ina2xx_probe(struct i2c_client *client, if (!data) return -ENOMEM; - if (client->dev.platform_data) { + if (dev_get_platdata(&client->dev)) { pdata = - (struct ina2xx_platform_data *)client->dev.platform_data; + (struct ina2xx_platform_data *)dev_get_platdata(&client->dev); shunt = pdata->shunt_uohms; } else if (!of_property_read_u32(client->dev.of_node, "shunt-resistor", &val)) { diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 72b21d5b1c62..29ffa27c60b8 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -1962,7 +1962,7 @@ exit: static void it87_remove_files(struct device *dev) { struct it87_data *data = platform_get_drvdata(pdev); - struct it87_sio_data *sio_data = dev->platform_data; + struct it87_sio_data *sio_data = dev_get_platdata(dev); int i; sysfs_remove_group(&dev->kobj, &it87_group); @@ -2014,7 +2014,7 @@ static int it87_probe(struct platform_device *pdev) struct it87_data *data; struct resource *res; struct device *dev = &pdev->dev; - struct it87_sio_data *sio_data = dev->platform_data; + struct it87_sio_data *sio_data = dev_get_platdata(dev); int err = 0, i; int enable_pwm_interface; int fan_beep_need_rw; @@ -2316,7 +2316,7 @@ static int it87_check_pwm(struct device *dev) /* Called when we have found a new IT87. */ static void it87_init_device(struct platform_device *pdev) { - struct it87_sio_data *sio_data = pdev->dev.platform_data; + struct it87_sio_data *sio_data = dev_get_platdata(&pdev->dev); struct it87_data *data = platform_get_drvdata(pdev); int tmp, i; u8 mask; diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index e3b037c73a7e..e633856370cf 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -1,5 +1,5 @@ /* - * k10temp.c - AMD Family 10h/11h/12h/14h/15h processor hardware monitoring + * k10temp.c - AMD Family 10h/11h/12h/14h/15h/16h processor hardware monitoring * * Copyright (c) 2009 Clemens Ladisch <clemens@ladisch.de> * @@ -211,6 +211,7 @@ static DEFINE_PCI_DEVICE_TABLE(k10temp_id_table) = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M10H_F3) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) }, {} }; MODULE_DEVICE_TABLE(pci, k10temp_id_table); diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c index 16e45d702152..333092ce2465 100644 --- a/drivers/hwmon/lm87.c +++ b/drivers/hwmon/lm87.c @@ -855,8 +855,8 @@ static void lm87_init_client(struct i2c_client *client) { struct lm87_data *data = i2c_get_clientdata(client); - if (client->dev.platform_data) { - data->channel = *(u8 *)client->dev.platform_data; + if (dev_get_platdata(&client->dev)) { + data->channel = *(u8 *)dev_get_platdata(&client->dev); lm87_write_value(client, LM87_REG_CHANNEL_MODE, data->channel); } else { diff --git a/drivers/hwmon/max197.c b/drivers/hwmon/max197.c index b5ebb9198c75..96dccaf919d1 100644 --- a/drivers/hwmon/max197.c +++ b/drivers/hwmon/max197.c @@ -261,7 +261,7 @@ static int max197_probe(struct platform_device *pdev) { int ch, ret; struct max197_data *data; - struct max197_platform_data *pdata = pdev->dev.platform_data; + struct max197_platform_data *pdata = dev_get_platdata(&pdev->dev); enum max197_chips chip = platform_get_device_id(pdev)->driver_data; if (pdata == NULL) { diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c index 3e7b4269f5b9..066e587a18a5 100644 --- a/drivers/hwmon/max6639.c +++ b/drivers/hwmon/max6639.c @@ -428,7 +428,7 @@ static int max6639_init_client(struct i2c_client *client) { struct max6639_data *data = i2c_get_clientdata(client); struct max6639_platform_data *max6639_info = - client->dev.platform_data; + dev_get_platdata(&client->dev); int i; int rpm_range = 1; /* default: 4000 RPM */ int err; diff --git a/drivers/hwmon/mcp3021.c b/drivers/hwmon/mcp3021.c index eedb32292d6d..d219c06a857b 100644 --- a/drivers/hwmon/mcp3021.c +++ b/drivers/hwmon/mcp3021.c @@ -143,12 +143,13 @@ static int mcp3021_probe(struct i2c_client *client, break; } - if (client->dev.platform_data) { - data->vdd = *(u32 *)client->dev.platform_data; + if (dev_get_platdata(&client->dev)) { + data->vdd = *(u32 *)dev_get_platdata(&client->dev); if (data->vdd > MCP3021_VDD_MAX || data->vdd < MCP3021_VDD_MIN) return -EINVAL; - } else + } else { data->vdd = MCP3021_VDD_REF; + } err = sysfs_create_file(&client->dev.kobj, &dev_attr_in0_input.attr); if (err) diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 99cec1825420..6eb03ce2cff4 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -33,9 +33,11 @@ * Supports the following chips: * * Chip #vin #fan #pwm #temp chip IDs man ID + * nct6106d 9 3 3 6+3 0xc450 0xc1 0x5ca3 * nct6775f 9 4 3 6+3 0xb470 0xc1 0x5ca3 * nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3 * nct6779d 15 5 5 2+6 0xc560 0xc1 0x5ca3 + * nct6791d 15 6 6 2+6 0xc800 0xc1 0x5ca3 * * #temp lists the number of monitored temperature sources (first value) plus * the number of directly connectable temperature sensors (second value). @@ -59,13 +61,15 @@ #define USE_ALTERNATE -enum kinds { nct6775, nct6776, nct6779 }; +enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791 }; /* used to set data->name = nct6775_device_names[data->sio_kind] */ static const char * const nct6775_device_names[] = { + "nct6106", "nct6775", "nct6776", "nct6779", + "nct6791", }; static unsigned short force_id; @@ -91,9 +95,11 @@ MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal"); #define SIO_REG_ENABLE 0x30 /* Logical device enable */ #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */ +#define SIO_NCT6106_ID 0xc450 #define SIO_NCT6775_ID 0xb470 #define SIO_NCT6776_ID 0xc330 #define SIO_NCT6779_ID 0xc560 +#define SIO_NCT6791_ID 0xc800 #define SIO_ID_MASK 0xFFF0 enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 }; @@ -167,7 +173,10 @@ superio_exit(int ioreg) #define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/ #define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */ -#define NUM_REG_ALARM 4 /* Max number of alarm registers */ +#define NUM_REG_ALARM 7 /* Max number of alarm registers */ +#define NUM_REG_BEEP 5 /* Max number of beep registers */ + +#define NUM_FAN 6 /* Common and NCT6775 specific data */ @@ -185,6 +194,7 @@ static const u16 NCT6775_REG_IN[] = { #define NCT6775_REG_VBAT 0x5D #define NCT6775_REG_DIODE 0x5E +#define NCT6775_DIODE_MASK 0x02 #define NCT6775_REG_FANDIV1 0x506 #define NCT6775_REG_FANDIV2 0x507 @@ -193,7 +203,7 @@ static const u16 NCT6775_REG_IN[] = { static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B }; -/* 0..15 voltages, 16..23 fans, 24..31 temperatures */ +/* 0..15 voltages, 16..23 fans, 24..29 temperatures, 30..31 intrusion */ static const s8 NCT6775_ALARM_BITS[] = { 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */ @@ -208,6 +218,23 @@ static const s8 NCT6775_ALARM_BITS[] = { #define TEMP_ALARM_BASE 24 #define INTRUSION_ALARM_BASE 30 +static const u16 NCT6775_REG_BEEP[NUM_REG_BEEP] = { 0x56, 0x57, 0x453, 0x4e }; + +/* + * 0..14 voltages, 15 global beep enable, 16..23 fans, 24..29 temperatures, + * 30..31 intrusion + */ +static const s8 NCT6775_BEEP_BITS[] = { + 0, 1, 2, 3, 8, 9, 10, 16, /* in0.. in7 */ + 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */ + 21, /* global beep enable */ + 6, 7, 11, 28, -1, /* fan1..fan5 */ + -1, -1, -1, /* unused */ + 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ + 12, -1 }; /* intrusion0, intrusion1 */ + +#define BEEP_ENABLE_BASE 15 + static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee }; static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 }; @@ -217,27 +244,32 @@ static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 }; /* Advanced Fan control, some values are common for all fans */ -static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 }; -static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 }; +static const u16 NCT6775_REG_TARGET[] = { + 0x101, 0x201, 0x301, 0x801, 0x901, 0xa01 }; +static const u16 NCT6775_REG_FAN_MODE[] = { + 0x102, 0x202, 0x302, 0x802, 0x902, 0xa02 }; static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = { - 0x103, 0x203, 0x303, 0x803, 0x903 }; + 0x103, 0x203, 0x303, 0x803, 0x903, 0xa03 }; static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = { - 0x104, 0x204, 0x304, 0x804, 0x904 }; + 0x104, 0x204, 0x304, 0x804, 0x904, 0xa04 }; static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = { - 0x105, 0x205, 0x305, 0x805, 0x905 }; -static const u16 NCT6775_REG_FAN_START_OUTPUT[] - = { 0x106, 0x206, 0x306, 0x806, 0x906 }; + 0x105, 0x205, 0x305, 0x805, 0x905, 0xa05 }; +static const u16 NCT6775_REG_FAN_START_OUTPUT[] = { + 0x106, 0x206, 0x306, 0x806, 0x906, 0xa06 }; static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a }; static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b }; static const u16 NCT6775_REG_FAN_STOP_TIME[] = { - 0x107, 0x207, 0x307, 0x807, 0x907 }; -static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 }; -static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 }; + 0x107, 0x207, 0x307, 0x807, 0x907, 0xa07 }; +static const u16 NCT6775_REG_PWM[] = { + 0x109, 0x209, 0x309, 0x809, 0x909, 0xa09 }; +static const u16 NCT6775_REG_PWM_READ[] = { + 0x01, 0x03, 0x11, 0x13, 0x15, 0xa09 }; static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 }; static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d }; static const u16 NCT6775_REG_FAN_PULSES[] = { 0x641, 0x642, 0x643, 0x644, 0 }; +static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 }; static const u16 NCT6775_REG_TEMP[] = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d }; @@ -253,25 +285,25 @@ static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = { 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 }; static const u16 NCT6775_REG_TEMP_SEL[] = { - 0x100, 0x200, 0x300, 0x800, 0x900 }; + 0x100, 0x200, 0x300, 0x800, 0x900, 0xa00 }; static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = { - 0x139, 0x239, 0x339, 0x839, 0x939 }; + 0x139, 0x239, 0x339, 0x839, 0x939, 0xa39 }; static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[] = { - 0x13a, 0x23a, 0x33a, 0x83a, 0x93a }; + 0x13a, 0x23a, 0x33a, 0x83a, 0x93a, 0xa3a }; static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[] = { - 0x13b, 0x23b, 0x33b, 0x83b, 0x93b }; + 0x13b, 0x23b, 0x33b, 0x83b, 0x93b, 0xa3b }; static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[] = { - 0x13c, 0x23c, 0x33c, 0x83c, 0x93c }; + 0x13c, 0x23c, 0x33c, 0x83c, 0x93c, 0xa3c }; static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = { - 0x13d, 0x23d, 0x33d, 0x83d, 0x93d }; + 0x13d, 0x23d, 0x33d, 0x83d, 0x93d, 0xa3d }; static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 }; static const u16 NCT6775_REG_AUTO_TEMP[] = { - 0x121, 0x221, 0x321, 0x821, 0x921 }; + 0x121, 0x221, 0x321, 0x821, 0x921, 0xa21 }; static const u16 NCT6775_REG_AUTO_PWM[] = { - 0x127, 0x227, 0x327, 0x827, 0x927 }; + 0x127, 0x227, 0x327, 0x827, 0x927, 0xa27 }; #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p)) #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p)) @@ -279,9 +311,9 @@ static const u16 NCT6775_REG_AUTO_PWM[] = { static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 }; static const u16 NCT6775_REG_CRITICAL_TEMP[] = { - 0x135, 0x235, 0x335, 0x835, 0x935 }; + 0x135, 0x235, 0x335, 0x835, 0x935, 0xa35 }; static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = { - 0x138, 0x238, 0x338, 0x838, 0x938 }; + 0x138, 0x238, 0x338, 0x838, 0x938, 0xa38 }; static const char *const nct6775_temp_label[] = { "", @@ -325,17 +357,28 @@ static const s8 NCT6776_ALARM_BITS[] = { 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ 12, 9 }; /* intrusion0, intrusion1 */ +static const u16 NCT6776_REG_BEEP[NUM_REG_BEEP] = { 0xb2, 0xb3, 0xb4, 0xb5 }; + +static const s8 NCT6776_BEEP_BITS[] = { + 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */ + 8, -1, -1, -1, -1, -1, -1, /* in8..in14 */ + 24, /* global beep enable */ + 25, 26, 27, 28, 29, /* fan1..fan5 */ + -1, -1, -1, /* unused */ + 16, 17, 18, 19, 20, 21, /* temp1..temp6 */ + 30, 31 }; /* intrusion0, intrusion1 */ + static const u16 NCT6776_REG_TOLERANCE_H[] = { - 0x10c, 0x20c, 0x30c, 0x80c, 0x90c }; + 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c }; -static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 }; -static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 }; +static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 }; +static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 }; static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642 }; static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 }; static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = { - 0x13e, 0x23e, 0x33e, 0x83e, 0x93e }; + 0x13e, 0x23e, 0x33e, 0x83e, 0x93e, 0xa3e }; static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = { 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A }; @@ -390,14 +433,25 @@ static const s8 NCT6779_ALARM_BITS[] = { 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ 12, 9 }; /* intrusion0, intrusion1 */ -static const u16 NCT6779_REG_FAN[] = { 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8 }; +static const s8 NCT6779_BEEP_BITS[] = { + 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */ + 8, 9, 10, 11, 12, 13, 14, /* in8..in14 */ + 24, /* global beep enable */ + 25, 26, 27, 28, 29, /* fan1..fan5 */ + -1, -1, -1, /* unused */ + 16, 17, -1, -1, -1, -1, /* temp1..temp6 */ + 30, 31 }; /* intrusion0, intrusion1 */ + +static const u16 NCT6779_REG_FAN[] = { + 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba }; static const u16 NCT6779_REG_FAN_PULSES[] = { - 0x644, 0x645, 0x646, 0x647, 0x648 }; + 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 }; static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = { - 0x136, 0x236, 0x336, 0x836, 0x936 }; + 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36 }; +#define NCT6779_CRITICAL_PWM_ENABLE_MASK 0x01 static const u16 NCT6779_REG_CRITICAL_PWM[] = { - 0x137, 0x237, 0x337, 0x837, 0x937 }; + 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 }; static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 }; static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = { @@ -449,6 +503,122 @@ static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1] static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a }; +/* NCT6791 specific data */ + +#define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28 + +static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = { + 0x459, 0x45A, 0x45B, 0x568, 0x45D }; + +static const s8 NCT6791_ALARM_BITS[] = { + 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */ + 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */ + -1, /* unused */ + 6, 7, 11, 10, 23, 33, /* fan1..fan6 */ + -1, -1, /* unused */ + 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ + 12, 9 }; /* intrusion0, intrusion1 */ + + +/* NCT6102D/NCT6106D specific data */ + +#define NCT6106_REG_VBAT 0x318 +#define NCT6106_REG_DIODE 0x319 +#define NCT6106_DIODE_MASK 0x01 + +static const u16 NCT6106_REG_IN_MAX[] = { + 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9e, 0xa0, 0xa2 }; +static const u16 NCT6106_REG_IN_MIN[] = { + 0x91, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9f, 0xa1, 0xa3 }; +static const u16 NCT6106_REG_IN[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 }; + +static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 }; +static const u16 NCT6106_REG_TEMP_HYST[] = { + 0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 }; +static const u16 NCT6106_REG_TEMP_OVER[] = { + 0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd6 }; +static const u16 NCT6106_REG_TEMP_CRIT_L[] = { + 0xc0, 0xc4, 0xc8, 0xcc, 0xd0, 0xd4 }; +static const u16 NCT6106_REG_TEMP_CRIT_H[] = { + 0xc1, 0xc5, 0xc9, 0xcf, 0xd1, 0xd5 }; +static const u16 NCT6106_REG_TEMP_OFFSET[] = { 0x311, 0x312, 0x313 }; +static const u16 NCT6106_REG_TEMP_CONFIG[] = { + 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc }; + +static const u16 NCT6106_REG_FAN[] = { 0x20, 0x22, 0x24 }; +static const u16 NCT6106_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4 }; +static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6, 0, 0 }; +static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4, 0, 0 }; + +static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 }; +static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 }; +static const u16 NCT6106_REG_PWM[] = { 0x119, 0x129, 0x139 }; +static const u16 NCT6106_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c }; +static const u16 NCT6106_REG_FAN_MODE[] = { 0x113, 0x123, 0x133 }; +static const u16 NCT6106_REG_TEMP_SEL[] = { 0x110, 0x120, 0x130 }; +static const u16 NCT6106_REG_TEMP_SOURCE[] = { + 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5 }; + +static const u16 NCT6106_REG_CRITICAL_TEMP[] = { 0x11a, 0x12a, 0x13a }; +static const u16 NCT6106_REG_CRITICAL_TEMP_TOLERANCE[] = { + 0x11b, 0x12b, 0x13b }; + +static const u16 NCT6106_REG_CRITICAL_PWM_ENABLE[] = { 0x11c, 0x12c, 0x13c }; +#define NCT6106_CRITICAL_PWM_ENABLE_MASK 0x10 +static const u16 NCT6106_REG_CRITICAL_PWM[] = { 0x11d, 0x12d, 0x13d }; + +static const u16 NCT6106_REG_FAN_STEP_UP_TIME[] = { 0x114, 0x124, 0x134 }; +static const u16 NCT6106_REG_FAN_STEP_DOWN_TIME[] = { 0x115, 0x125, 0x135 }; +static const u16 NCT6106_REG_FAN_STOP_OUTPUT[] = { 0x116, 0x126, 0x136 }; +static const u16 NCT6106_REG_FAN_START_OUTPUT[] = { 0x117, 0x127, 0x137 }; +static const u16 NCT6106_REG_FAN_STOP_TIME[] = { 0x118, 0x128, 0x138 }; +static const u16 NCT6106_REG_TOLERANCE_H[] = { 0x112, 0x122, 0x132 }; + +static const u16 NCT6106_REG_TARGET[] = { 0x111, 0x121, 0x131 }; + +static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 }; +static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 }; +static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a }; +static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x17c }; +static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c }; +static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d }; + +static const u16 NCT6106_REG_AUTO_TEMP[] = { 0x160, 0x170, 0x180 }; +static const u16 NCT6106_REG_AUTO_PWM[] = { 0x164, 0x174, 0x184 }; + +static const u16 NCT6106_REG_ALARM[NUM_REG_ALARM] = { + 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d }; + +static const s8 NCT6106_ALARM_BITS[] = { + 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */ + 9, -1, -1, -1, -1, -1, -1, /* in8..in14 */ + -1, /* unused */ + 32, 33, 34, -1, -1, /* fan1..fan5 */ + -1, -1, -1, /* unused */ + 16, 17, 18, 19, 20, 21, /* temp1..temp6 */ + 48, -1 /* intrusion0, intrusion1 */ +}; + +static const u16 NCT6106_REG_BEEP[NUM_REG_BEEP] = { + 0x3c0, 0x3c1, 0x3c2, 0x3c3, 0x3c4 }; + +static const s8 NCT6106_BEEP_BITS[] = { + 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */ + 9, 10, 11, 12, -1, -1, -1, /* in8..in14 */ + 32, /* global beep enable */ + 24, 25, 26, 27, 28, /* fan1..fan5 */ + -1, -1, -1, /* unused */ + 16, 17, 18, 19, 20, 21, /* temp1..temp6 */ + 34, -1 /* intrusion0, intrusion1 */ +}; + +static const u16 NCT6106_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1] + = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x51, 0x52, 0x54 }; + +static const u16 NCT6106_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1] + = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x204, 0x205 }; + static enum pwm_enable reg_to_pwm_enable(int pwm, int mode) { if (mode == 0 && pwm == 255) @@ -550,13 +720,18 @@ static inline u8 in_to_reg(u32 val, u8 nr) struct nct6775_data { int addr; /* IO base of hw monitor block */ + int sioreg; /* SIO register address */ enum kinds kind; const char *name; struct device *hwmon_dev; + struct attribute_group *group_in; + struct attribute_group *group_fan; + struct attribute_group *group_temp; + struct attribute_group *group_pwm; - u16 reg_temp[4][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, - * 3=temp_crit + u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, + * 3=temp_crit, 4=temp_lcrit */ u8 temp_src[NUM_TEMP]; u16 reg_temp_config[NUM_TEMP]; @@ -566,8 +741,10 @@ struct nct6775_data { u16 REG_CONFIG; u16 REG_VBAT; u16 REG_DIODE; + u8 DIODE_MASK; const s8 *ALARM_BITS; + const s8 *BEEP_BITS; const u16 *REG_VIN; const u16 *REG_IN_MINMAX[2]; @@ -577,6 +754,7 @@ struct nct6775_data { const u16 *REG_FAN_MODE; const u16 *REG_FAN_MIN; const u16 *REG_FAN_PULSES; + const u16 *FAN_PULSE_SHIFT; const u16 *REG_FAN_TIME[3]; const u16 *REG_TOLERANCE_H; @@ -590,6 +768,10 @@ struct nct6775_data { */ const u16 *REG_PWM_READ; + const u16 *REG_CRITICAL_PWM_ENABLE; + u8 CRITICAL_PWM_ENABLE_MASK; + const u16 *REG_CRITICAL_PWM; + const u16 *REG_AUTO_TEMP; const u16 *REG_AUTO_PWM; @@ -604,6 +786,7 @@ struct nct6775_data { const u16 *REG_TEMP_OFFSET; const u16 *REG_ALARM; + const u16 *REG_BEEP; unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg); unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg); @@ -616,26 +799,30 @@ struct nct6775_data { u8 bank; /* current register bank */ u8 in_num; /* number of in inputs we have */ u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */ - unsigned int rpm[5]; - u16 fan_min[5]; - u8 fan_pulses[5]; - u8 fan_div[5]; + unsigned int rpm[NUM_FAN]; + u16 fan_min[NUM_FAN]; + u8 fan_pulses[NUM_FAN]; + u8 fan_div[NUM_FAN]; u8 has_pwm; u8 has_fan; /* some fan inputs can be disabled */ u8 has_fan_min; /* some fans don't have min register */ bool has_fan_div; - u8 num_temp_alarms; /* 2 or 3 */ + u8 num_temp_alarms; /* 2, 3, or 6 */ + u8 num_temp_beeps; /* 2, 3, or 6 */ u8 temp_fixed_num; /* 3 or 6 */ u8 temp_type[NUM_TEMP_FIXED]; s8 temp_offset[NUM_TEMP_FIXED]; - s16 temp[4][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, - * 3=temp_crit */ + s16 temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, + * 3=temp_crit, 4=temp_lcrit */ u64 alarms; + u64 beeps; u8 pwm_num; /* number of pwm */ - u8 pwm_mode[5]; /* 1->DC variable voltage, 0->PWM variable duty cycle */ - enum pwm_enable pwm_enable[5]; + u8 pwm_mode[NUM_FAN]; /* 1->DC variable voltage, + * 0->PWM variable duty cycle + */ + enum pwm_enable pwm_enable[NUM_FAN]; /* 0->off * 1->manual * 2->thermal cruise mode (also called SmartFan I) @@ -643,35 +830,37 @@ struct nct6775_data { * 4->SmartFan III * 5->enhanced variable thermal cruise (SmartFan IV) */ - u8 pwm[7][5]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor, - * [3]=pwm_max, [4]=pwm_step, - * [5]=weight_duty_step, [6]=weight_duty_base - */ + u8 pwm[7][NUM_FAN]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor, + * [3]=pwm_max, [4]=pwm_step, + * [5]=weight_duty_step, [6]=weight_duty_base + */ - u8 target_temp[5]; + u8 target_temp[NUM_FAN]; u8 target_temp_mask; - u32 target_speed[5]; - u32 target_speed_tolerance[5]; + u32 target_speed[NUM_FAN]; + u32 target_speed_tolerance[NUM_FAN]; u8 speed_tolerance_limit; - u8 temp_tolerance[2][5]; + u8 temp_tolerance[2][NUM_FAN]; u8 tolerance_mask; - u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */ + u8 fan_time[3][NUM_FAN]; /* 0 = stop_time, 1 = step_up, 2 = step_down */ /* Automatic fan speed control registers */ int auto_pwm_num; - u8 auto_pwm[5][7]; - u8 auto_temp[5][7]; - u8 pwm_temp_sel[5]; - u8 pwm_weight_temp_sel[5]; - u8 weight_temp[3][5]; /* 0->temp_step, 1->temp_step_tol, - * 2->temp_base - */ + u8 auto_pwm[NUM_FAN][7]; + u8 auto_temp[NUM_FAN][7]; + u8 pwm_temp_sel[NUM_FAN]; + u8 pwm_weight_temp_sel[NUM_FAN]; + u8 weight_temp[3][NUM_FAN]; /* 0->temp_step, 1->temp_step_tol, + * 2->temp_base + */ u8 vid; u8 vrm; + bool have_vid; + u16 have_temp; u16 have_temp_fixed; u16 have_in; @@ -688,9 +877,145 @@ struct nct6775_sio_data { enum kinds kind; }; +struct sensor_device_template { + struct device_attribute dev_attr; + union { + struct { + u8 nr; + u8 index; + } s; + int index; + } u; + bool s2; /* true if both index and nr are used */ +}; + +struct sensor_device_attr_u { + union { + struct sensor_device_attribute a1; + struct sensor_device_attribute_2 a2; + } u; + char name[32]; +}; + +#define __TEMPLATE_ATTR(_template, _mode, _show, _store) { \ + .attr = {.name = _template, .mode = _mode }, \ + .show = _show, \ + .store = _store, \ +} + +#define SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, _index) \ + { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \ + .u.index = _index, \ + .s2 = false } + +#define SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \ + _nr, _index) \ + { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \ + .u.s.index = _index, \ + .u.s.nr = _nr, \ + .s2 = true } + +#define SENSOR_TEMPLATE(_name, _template, _mode, _show, _store, _index) \ +static struct sensor_device_template sensor_dev_template_##_name \ + = SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, \ + _index) + +#define SENSOR_TEMPLATE_2(_name, _template, _mode, _show, _store, \ + _nr, _index) \ +static struct sensor_device_template sensor_dev_template_##_name \ + = SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \ + _nr, _index) + +struct sensor_template_group { + struct sensor_device_template **templates; + umode_t (*is_visible)(struct kobject *, struct attribute *, int); + int base; +}; + +static struct attribute_group * +nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg, + int repeat) +{ + struct attribute_group *group; + struct sensor_device_attr_u *su; + struct sensor_device_attribute *a; + struct sensor_device_attribute_2 *a2; + struct attribute **attrs; + struct sensor_device_template **t; + int err, i, j, count; + + if (repeat <= 0) + return ERR_PTR(-EINVAL); + + t = tg->templates; + for (count = 0; *t; t++, count++) + ; + + if (count == 0) + return ERR_PTR(-EINVAL); + + group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL); + if (group == NULL) + return ERR_PTR(-ENOMEM); + + attrs = devm_kzalloc(dev, sizeof(*attrs) * (repeat * count + 1), + GFP_KERNEL); + if (attrs == NULL) + return ERR_PTR(-ENOMEM); + + su = devm_kzalloc(dev, sizeof(*su) * repeat * count, + GFP_KERNEL); + if (su == NULL) + return ERR_PTR(-ENOMEM); + + group->attrs = attrs; + group->is_visible = tg->is_visible; + + for (i = 0; i < repeat; i++) { + t = tg->templates; + for (j = 0; *t != NULL; j++) { + snprintf(su->name, sizeof(su->name), + (*t)->dev_attr.attr.name, tg->base + i); + if ((*t)->s2) { + a2 = &su->u.a2; + a2->dev_attr.attr.name = su->name; + a2->nr = (*t)->u.s.nr + i; + a2->index = (*t)->u.s.index; + a2->dev_attr.attr.mode = + (*t)->dev_attr.attr.mode; + a2->dev_attr.show = (*t)->dev_attr.show; + a2->dev_attr.store = (*t)->dev_attr.store; + *attrs = &a2->dev_attr.attr; + } else { + a = &su->u.a1; + a->dev_attr.attr.name = su->name; + a->index = (*t)->u.index + i; + a->dev_attr.attr.mode = + (*t)->dev_attr.attr.mode; + a->dev_attr.show = (*t)->dev_attr.show; + a->dev_attr.store = (*t)->dev_attr.store; + *attrs = &a->dev_attr.attr; + } + attrs++; + su++; + t++; + } + } + + err = sysfs_create_group(&dev->kobj, group); + if (err) + return ERR_PTR(-ENOMEM); + + return group; +} + static bool is_word_sized(struct nct6775_data *data, u16 reg) { switch (data->kind) { + case nct6106: + return reg == 0x20 || reg == 0x22 || reg == 0x24 || + reg == 0xe0 || reg == 0xe2 || reg == 0xe4 || + reg == 0x111 || reg == 0x121 || reg == 0x131; case nct6775: return (((reg & 0xff00) == 0x100 || (reg & 0xff00) == 0x200) && @@ -714,8 +1039,9 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg) ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) || reg == 0x73 || reg == 0x75 || reg == 0x77; case nct6779: + case nct6791: return reg == 0x150 || reg == 0x153 || reg == 0x155 || - ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x09) || + ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) || reg == 0x402 || reg == 0x63a || reg == 0x63c || reg == 0x63e || reg == 0x640 || reg == 0x642 || @@ -1056,15 +1382,17 @@ static void nct6775_update_pwm_limits(struct device *dev) case nct6776: data->auto_pwm[i][data->auto_pwm_num] = 0xff; break; + case nct6106: case nct6779: + case nct6791: reg = nct6775_read_value(data, - NCT6779_REG_CRITICAL_PWM_ENABLE[i]); - if (reg & 1) - data->auto_pwm[i][data->auto_pwm_num] = - nct6775_read_value(data, - NCT6779_REG_CRITICAL_PWM[i]); + data->REG_CRITICAL_PWM_ENABLE[i]); + if (reg & data->CRITICAL_PWM_ENABLE_MASK) + reg = nct6775_read_value(data, + data->REG_CRITICAL_PWM[i]); else - data->auto_pwm[i][data->auto_pwm_num] = 0xff; + reg = 0xff; + data->auto_pwm[i][data->auto_pwm_num] = reg; break; } } @@ -1110,7 +1438,8 @@ static struct nct6775_data *nct6775_update_device(struct device *dev) data->fan_min[i] = nct6775_read_value(data, data->REG_FAN_MIN[i]); data->fan_pulses[i] = - nct6775_read_value(data, data->REG_FAN_PULSES[i]); + (nct6775_read_value(data, data->REG_FAN_PULSES[i]) + >> data->FAN_PULSE_SHIFT[i]) & 0x03; nct6775_select_fan_div(dev, data, i, reg); } @@ -1143,6 +1472,15 @@ static struct nct6775_data *nct6775_update_device(struct device *dev) data->alarms |= ((u64)alarm) << (i << 3); } + data->beeps = 0; + for (i = 0; i < NUM_REG_BEEP; i++) { + u8 beep; + if (!data->REG_BEEP[i]) + continue; + beep = nct6775_read_value(data, data->REG_BEEP[i]); + data->beeps |= ((u64)beep) << (i << 3); + } + data->last_updated = jiffies; data->valid = true; } @@ -1230,224 +1568,138 @@ show_temp_alarm(struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%u\n", alarm); } -static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0); -static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0); -static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0); -static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0); -static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0); -static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0); -static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0); -static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0); -static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0); -static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0); -static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0); -static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0); -static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0); -static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0); -static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0); - -static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); -static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); -static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); -static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); -static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4); -static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5); -static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6); -static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7); -static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8); -static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9); -static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10); -static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 11); -static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 12); -static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 13); -static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 14); - -static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 0, 1); -static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 1, 1); -static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 2, 1); -static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 3, 1); -static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 4, 1); -static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 5, 1); -static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 6, 1); -static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 7, 1); -static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 8, 1); -static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 9, 1); -static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 10, 1); -static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 11, 1); -static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 12, 1); -static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 13, 1); -static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 14, 1); - -static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 0, 2); -static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 1, 2); -static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 2, 2); -static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 3, 2); -static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 4, 2); -static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 5, 2); -static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 6, 2); -static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 7, 2); -static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 8, 2); -static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 9, 2); -static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 10, 2); -static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 11, 2); -static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 12, 2); -static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 13, 2); -static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg, - store_in_reg, 14, 2); - -static struct attribute *nct6775_attributes_in[15][5] = { - { - &sensor_dev_attr_in0_input.dev_attr.attr, - &sensor_dev_attr_in0_min.dev_attr.attr, - &sensor_dev_attr_in0_max.dev_attr.attr, - &sensor_dev_attr_in0_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in1_input.dev_attr.attr, - &sensor_dev_attr_in1_min.dev_attr.attr, - &sensor_dev_attr_in1_max.dev_attr.attr, - &sensor_dev_attr_in1_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in2_input.dev_attr.attr, - &sensor_dev_attr_in2_min.dev_attr.attr, - &sensor_dev_attr_in2_max.dev_attr.attr, - &sensor_dev_attr_in2_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in3_input.dev_attr.attr, - &sensor_dev_attr_in3_min.dev_attr.attr, - &sensor_dev_attr_in3_max.dev_attr.attr, - &sensor_dev_attr_in3_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in4_input.dev_attr.attr, - &sensor_dev_attr_in4_min.dev_attr.attr, - &sensor_dev_attr_in4_max.dev_attr.attr, - &sensor_dev_attr_in4_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in5_input.dev_attr.attr, - &sensor_dev_attr_in5_min.dev_attr.attr, - &sensor_dev_attr_in5_max.dev_attr.attr, - &sensor_dev_attr_in5_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in6_input.dev_attr.attr, - &sensor_dev_attr_in6_min.dev_attr.attr, - &sensor_dev_attr_in6_max.dev_attr.attr, - &sensor_dev_attr_in6_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in7_input.dev_attr.attr, - &sensor_dev_attr_in7_min.dev_attr.attr, - &sensor_dev_attr_in7_max.dev_attr.attr, - &sensor_dev_attr_in7_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in8_input.dev_attr.attr, - &sensor_dev_attr_in8_min.dev_attr.attr, - &sensor_dev_attr_in8_max.dev_attr.attr, - &sensor_dev_attr_in8_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in9_input.dev_attr.attr, - &sensor_dev_attr_in9_min.dev_attr.attr, - &sensor_dev_attr_in9_max.dev_attr.attr, - &sensor_dev_attr_in9_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in10_input.dev_attr.attr, - &sensor_dev_attr_in10_min.dev_attr.attr, - &sensor_dev_attr_in10_max.dev_attr.attr, - &sensor_dev_attr_in10_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in11_input.dev_attr.attr, - &sensor_dev_attr_in11_min.dev_attr.attr, - &sensor_dev_attr_in11_max.dev_attr.attr, - &sensor_dev_attr_in11_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in12_input.dev_attr.attr, - &sensor_dev_attr_in12_min.dev_attr.attr, - &sensor_dev_attr_in12_max.dev_attr.attr, - &sensor_dev_attr_in12_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in13_input.dev_attr.attr, - &sensor_dev_attr_in13_min.dev_attr.attr, - &sensor_dev_attr_in13_max.dev_attr.attr, - &sensor_dev_attr_in13_alarm.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_in14_input.dev_attr.attr, - &sensor_dev_attr_in14_min.dev_attr.attr, - &sensor_dev_attr_in14_max.dev_attr.attr, - &sensor_dev_attr_in14_alarm.dev_attr.attr, - NULL - }, +static ssize_t +show_beep(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + struct nct6775_data *data = nct6775_update_device(dev); + int nr = data->BEEP_BITS[sattr->index]; + + return sprintf(buf, "%u\n", + (unsigned int)((data->beeps >> nr) & 0x01)); +} + +static ssize_t +store_beep(struct device *dev, struct device_attribute *attr, const char *buf, + size_t count) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct nct6775_data *data = dev_get_drvdata(dev); + int nr = data->BEEP_BITS[sattr->index]; + int regindex = nr >> 3; + unsigned long val; + + int err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + if (val > 1) + return -EINVAL; + + mutex_lock(&data->update_lock); + if (val) + data->beeps |= (1ULL << nr); + else + data->beeps &= ~(1ULL << nr); + nct6775_write_value(data, data->REG_BEEP[regindex], + (data->beeps >> (regindex << 3)) & 0xff); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_temp_beep(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + struct nct6775_data *data = nct6775_update_device(dev); + unsigned int beep = 0; + int nr; + + /* + * For temperatures, there is no fixed mapping from registers to beep + * enable bits. Beep enable bits are determined by the temperature + * source mapping. + */ + nr = find_temp_source(data, sattr->index, data->num_temp_beeps); + if (nr >= 0) { + int bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE]; + beep = (data->beeps >> bit) & 0x01; + } + return sprintf(buf, "%u\n", beep); +} + +static ssize_t +store_temp_beep(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct nct6775_data *data = dev_get_drvdata(dev); + int nr, bit, regindex; + unsigned long val; + + int err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + if (val > 1) + return -EINVAL; + + nr = find_temp_source(data, sattr->index, data->num_temp_beeps); + if (nr < 0) + return -ENODEV; + + bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE]; + regindex = bit >> 3; + + mutex_lock(&data->update_lock); + if (val) + data->beeps |= (1ULL << bit); + else + data->beeps &= ~(1ULL << bit); + nct6775_write_value(data, data->REG_BEEP[regindex], + (data->beeps >> (regindex << 3)) & 0xff); + mutex_unlock(&data->update_lock); + + return count; +} + +static umode_t nct6775_in_is_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct nct6775_data *data = dev_get_drvdata(dev); + int in = index / 5; /* voltage index */ + + if (!(data->have_in & (1 << in))) + return 0; + + return attr->mode; +} + +SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0); +SENSOR_TEMPLATE(in_alarm, "in%d_alarm", S_IRUGO, show_alarm, NULL, 0); +SENSOR_TEMPLATE(in_beep, "in%d_beep", S_IWUSR | S_IRUGO, show_beep, store_beep, + 0); +SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 0, 1); +SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 0, 2); + +/* + * nct6775_in_is_visible uses the index into the following array + * to determine if attributes should be created or not. + * Any change in order or content must be matched. + */ +static struct sensor_device_template *nct6775_attributes_in_template[] = { + &sensor_dev_template_in_input, + &sensor_dev_template_in_alarm, + &sensor_dev_template_in_beep, + &sensor_dev_template_in_min, + &sensor_dev_template_in_max, + NULL }; -static const struct attribute_group nct6775_group_in[15] = { - { .attrs = nct6775_attributes_in[0] }, - { .attrs = nct6775_attributes_in[1] }, - { .attrs = nct6775_attributes_in[2] }, - { .attrs = nct6775_attributes_in[3] }, - { .attrs = nct6775_attributes_in[4] }, - { .attrs = nct6775_attributes_in[5] }, - { .attrs = nct6775_attributes_in[6] }, - { .attrs = nct6775_attributes_in[7] }, - { .attrs = nct6775_attributes_in[8] }, - { .attrs = nct6775_attributes_in[9] }, - { .attrs = nct6775_attributes_in[10] }, - { .attrs = nct6775_attributes_in[11] }, - { .attrs = nct6775_attributes_in[12] }, - { .attrs = nct6775_attributes_in[13] }, - { .attrs = nct6775_attributes_in[14] }, +static struct sensor_template_group nct6775_in_template_group = { + .templates = nct6775_attributes_in_template, + .is_visible = nct6775_in_is_visible, }; static ssize_t @@ -1592,6 +1844,7 @@ store_fan_pulses(struct device *dev, struct device_attribute *attr, int nr = sattr->index; unsigned long val; int err; + u8 reg; err = kstrtoul(buf, 10, &val); if (err < 0) @@ -1602,60 +1855,68 @@ store_fan_pulses(struct device *dev, struct device_attribute *attr, mutex_lock(&data->update_lock); data->fan_pulses[nr] = val & 3; - nct6775_write_value(data, data->REG_FAN_PULSES[nr], val & 3); + reg = nct6775_read_value(data, data->REG_FAN_PULSES[nr]); + reg &= ~(0x03 << data->FAN_PULSE_SHIFT[nr]); + reg |= (val & 3) << data->FAN_PULSE_SHIFT[nr]; + nct6775_write_value(data, data->REG_FAN_PULSES[nr], reg); mutex_unlock(&data->update_lock); return count; } -static struct sensor_device_attribute sda_fan_input[] = { - SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), - SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), - SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), - SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), - SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4), -}; +static umode_t nct6775_fan_is_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct nct6775_data *data = dev_get_drvdata(dev); + int fan = index / 6; /* fan index */ + int nr = index % 6; /* attribute index */ -static struct sensor_device_attribute sda_fan_alarm[] = { - SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE), - SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 1), - SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 2), - SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 3), - SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 4), -}; + if (!(data->has_fan & (1 << fan))) + return 0; -static struct sensor_device_attribute sda_fan_min[] = { - SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, - store_fan_min, 0), - SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, - store_fan_min, 1), - SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, - store_fan_min, 2), - SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, - store_fan_min, 3), - SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min, - store_fan_min, 4), -}; + if (nr == 1 && data->ALARM_BITS[FAN_ALARM_BASE + fan] == -1) + return 0; + if (nr == 2 && data->BEEP_BITS[FAN_ALARM_BASE + fan] == -1) + return 0; + if (nr == 4 && !(data->has_fan_min & (1 << fan))) + return 0; + if (nr == 5 && data->kind != nct6775) + return 0; + + return attr->mode; +} -static struct sensor_device_attribute sda_fan_pulses[] = { - SENSOR_ATTR(fan1_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, - store_fan_pulses, 0), - SENSOR_ATTR(fan2_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, - store_fan_pulses, 1), - SENSOR_ATTR(fan3_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, - store_fan_pulses, 2), - SENSOR_ATTR(fan4_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, - store_fan_pulses, 3), - SENSOR_ATTR(fan5_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, - store_fan_pulses, 4), +SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0); +SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", S_IRUGO, show_alarm, NULL, + FAN_ALARM_BASE); +SENSOR_TEMPLATE(fan_beep, "fan%d_beep", S_IWUSR | S_IRUGO, show_beep, + store_beep, FAN_ALARM_BASE); +SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IWUSR | S_IRUGO, show_fan_pulses, + store_fan_pulses, 0); +SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IWUSR | S_IRUGO, show_fan_min, + store_fan_min, 0); +SENSOR_TEMPLATE(fan_div, "fan%d_div", S_IRUGO, show_fan_div, NULL, 0); + +/* + * nct6775_fan_is_visible uses the index into the following array + * to determine if attributes should be created or not. + * Any change in order or content must be matched. + */ +static struct sensor_device_template *nct6775_attributes_fan_template[] = { + &sensor_dev_template_fan_input, + &sensor_dev_template_fan_alarm, /* 1 */ + &sensor_dev_template_fan_beep, /* 2 */ + &sensor_dev_template_fan_pulses, + &sensor_dev_template_fan_min, /* 4 */ + &sensor_dev_template_fan_div, /* 5 */ + NULL }; -static struct sensor_device_attribute sda_fan_div[] = { - SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), - SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), - SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), - SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3), - SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4), +static struct sensor_template_group nct6775_fan_template_group = { + .templates = nct6775_attributes_fan_template, + .is_visible = nct6775_fan_is_visible, + .base = 1, }; static ssize_t @@ -1752,7 +2013,7 @@ store_temp_type(struct device *dev, struct device_attribute *attr, int nr = sattr->index; unsigned long val; int err; - u8 vbat, diode, bit; + u8 vbat, diode, vbit, dbit; err = kstrtoul(buf, 10, &val); if (err < 0) @@ -1764,16 +2025,17 @@ store_temp_type(struct device *dev, struct device_attribute *attr, mutex_lock(&data->update_lock); data->temp_type[nr] = val; - vbat = nct6775_read_value(data, data->REG_VBAT) & ~(0x02 << nr); - diode = nct6775_read_value(data, data->REG_DIODE) & ~(0x02 << nr); - bit = 0x02 << nr; + vbit = 0x02 << nr; + dbit = data->DIODE_MASK << nr; + vbat = nct6775_read_value(data, data->REG_VBAT) & ~vbit; + diode = nct6775_read_value(data, data->REG_DIODE) & ~dbit; switch (val) { case 1: /* CPU diode (diode, current mode) */ - vbat |= bit; - diode |= bit; + vbat |= vbit; + diode |= dbit; break; case 3: /* diode, voltage mode */ - vbat |= bit; + vbat |= dbit; break; case 4: /* thermistor */ break; @@ -1785,142 +2047,83 @@ store_temp_type(struct device *dev, struct device_attribute *attr, return count; } -static struct sensor_device_attribute_2 sda_temp_input[] = { - SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0), - SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0), - SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0), - SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0), - SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0), - SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0), - SENSOR_ATTR_2(temp7_input, S_IRUGO, show_temp, NULL, 6, 0), - SENSOR_ATTR_2(temp8_input, S_IRUGO, show_temp, NULL, 7, 0), - SENSOR_ATTR_2(temp9_input, S_IRUGO, show_temp, NULL, 8, 0), - SENSOR_ATTR_2(temp10_input, S_IRUGO, show_temp, NULL, 9, 0), -}; +static umode_t nct6775_temp_is_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct nct6775_data *data = dev_get_drvdata(dev); + int temp = index / 10; /* temp index */ + int nr = index % 10; /* attribute index */ -static struct sensor_device_attribute sda_temp_label[] = { - SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0), - SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1), - SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2), - SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3), - SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4), - SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5), - SENSOR_ATTR(temp7_label, S_IRUGO, show_temp_label, NULL, 6), - SENSOR_ATTR(temp8_label, S_IRUGO, show_temp_label, NULL, 7), - SENSOR_ATTR(temp9_label, S_IRUGO, show_temp_label, NULL, 8), - SENSOR_ATTR(temp10_label, S_IRUGO, show_temp_label, NULL, 9), -}; + if (!(data->have_temp & (1 << temp))) + return 0; -static struct sensor_device_attribute_2 sda_temp_max[] = { - SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 0, 1), - SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 1, 1), - SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 2, 1), - SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 3, 1), - SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 4, 1), - SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 5, 1), - SENSOR_ATTR_2(temp7_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 6, 1), - SENSOR_ATTR_2(temp8_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 7, 1), - SENSOR_ATTR_2(temp9_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 8, 1), - SENSOR_ATTR_2(temp10_max, S_IRUGO | S_IWUSR, show_temp, store_temp, - 9, 1), -}; + if (nr == 2 && find_temp_source(data, temp, data->num_temp_alarms) < 0) + return 0; /* alarm */ -static struct sensor_device_attribute_2 sda_temp_max_hyst[] = { - SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 0, 2), - SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 1, 2), - SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 2, 2), - SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 3, 2), - SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 4, 2), - SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 5, 2), - SENSOR_ATTR_2(temp7_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 6, 2), - SENSOR_ATTR_2(temp8_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 7, 2), - SENSOR_ATTR_2(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 8, 2), - SENSOR_ATTR_2(temp10_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, - 9, 2), -}; + if (nr == 3 && find_temp_source(data, temp, data->num_temp_beeps) < 0) + return 0; /* beep */ -static struct sensor_device_attribute_2 sda_temp_crit[] = { - SENSOR_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 0, 3), - SENSOR_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 1, 3), - SENSOR_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 2, 3), - SENSOR_ATTR_2(temp4_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 3, 3), - SENSOR_ATTR_2(temp5_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 4, 3), - SENSOR_ATTR_2(temp6_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 5, 3), - SENSOR_ATTR_2(temp7_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 6, 3), - SENSOR_ATTR_2(temp8_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 7, 3), - SENSOR_ATTR_2(temp9_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 8, 3), - SENSOR_ATTR_2(temp10_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, - 9, 3), -}; + if (nr == 4 && !data->reg_temp[1][temp]) /* max */ + return 0; -static struct sensor_device_attribute sda_temp_offset[] = { - SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset, - store_temp_offset, 0), - SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset, - store_temp_offset, 1), - SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset, - store_temp_offset, 2), - SENSOR_ATTR(temp4_offset, S_IRUGO | S_IWUSR, show_temp_offset, - store_temp_offset, 3), - SENSOR_ATTR(temp5_offset, S_IRUGO | S_IWUSR, show_temp_offset, - store_temp_offset, 4), - SENSOR_ATTR(temp6_offset, S_IRUGO | S_IWUSR, show_temp_offset, - store_temp_offset, 5), -}; + if (nr == 5 && !data->reg_temp[2][temp]) /* max_hyst */ + return 0; + + if (nr == 6 && !data->reg_temp[3][temp]) /* crit */ + return 0; + + if (nr == 7 && !data->reg_temp[4][temp]) /* lcrit */ + return 0; + + /* offset and type only apply to fixed sensors */ + if (nr > 7 && !(data->have_temp_fixed & (1 << temp))) + return 0; -static struct sensor_device_attribute sda_temp_type[] = { - SENSOR_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type, - store_temp_type, 0), - SENSOR_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type, - store_temp_type, 1), - SENSOR_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type, - store_temp_type, 2), - SENSOR_ATTR(temp4_type, S_IRUGO | S_IWUSR, show_temp_type, - store_temp_type, 3), - SENSOR_ATTR(temp5_type, S_IRUGO | S_IWUSR, show_temp_type, - store_temp_type, 4), - SENSOR_ATTR(temp6_type, S_IRUGO | S_IWUSR, show_temp_type, - store_temp_type, 5), + return attr->mode; +} + +SENSOR_TEMPLATE_2(temp_input, "temp%d_input", S_IRUGO, show_temp, NULL, 0, 0); +SENSOR_TEMPLATE(temp_label, "temp%d_label", S_IRUGO, show_temp_label, NULL, 0); +SENSOR_TEMPLATE_2(temp_max, "temp%d_max", S_IRUGO | S_IWUSR, show_temp, + store_temp, 0, 1); +SENSOR_TEMPLATE_2(temp_max_hyst, "temp%d_max_hyst", S_IRUGO | S_IWUSR, + show_temp, store_temp, 0, 2); +SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO | S_IWUSR, show_temp, + store_temp, 0, 3); +SENSOR_TEMPLATE_2(temp_lcrit, "temp%d_lcrit", S_IRUGO | S_IWUSR, show_temp, + store_temp, 0, 4); +SENSOR_TEMPLATE(temp_offset, "temp%d_offset", S_IRUGO | S_IWUSR, + show_temp_offset, store_temp_offset, 0); +SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO | S_IWUSR, show_temp_type, + store_temp_type, 0); +SENSOR_TEMPLATE(temp_alarm, "temp%d_alarm", S_IRUGO, show_temp_alarm, NULL, 0); +SENSOR_TEMPLATE(temp_beep, "temp%d_beep", S_IRUGO | S_IWUSR, show_temp_beep, + store_temp_beep, 0); + +/* + * nct6775_temp_is_visible uses the index into the following array + * to determine if attributes should be created or not. + * Any change in order or content must be matched. + */ +static struct sensor_device_template *nct6775_attributes_temp_template[] = { + &sensor_dev_template_temp_input, + &sensor_dev_template_temp_label, + &sensor_dev_template_temp_alarm, /* 2 */ + &sensor_dev_template_temp_beep, /* 3 */ + &sensor_dev_template_temp_max, /* 4 */ + &sensor_dev_template_temp_max_hyst, /* 5 */ + &sensor_dev_template_temp_crit, /* 6 */ + &sensor_dev_template_temp_lcrit, /* 7 */ + &sensor_dev_template_temp_offset, /* 8 */ + &sensor_dev_template_temp_type, /* 9 */ + NULL }; -static struct sensor_device_attribute sda_temp_alarm[] = { - SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0), - SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1), - SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2), - SENSOR_ATTR(temp4_alarm, S_IRUGO, show_temp_alarm, NULL, 3), - SENSOR_ATTR(temp5_alarm, S_IRUGO, show_temp_alarm, NULL, 4), - SENSOR_ATTR(temp6_alarm, S_IRUGO, show_temp_alarm, NULL, 5), - SENSOR_ATTR(temp7_alarm, S_IRUGO, show_temp_alarm, NULL, 6), - SENSOR_ATTR(temp8_alarm, S_IRUGO, show_temp_alarm, NULL, 7), - SENSOR_ATTR(temp9_alarm, S_IRUGO, show_temp_alarm, NULL, 8), - SENSOR_ATTR(temp10_alarm, S_IRUGO, show_temp_alarm, NULL, 9), +static struct sensor_template_group nct6775_temp_template_group = { + .templates = nct6775_attributes_temp_template, + .is_visible = nct6775_temp_is_visible, + .base = 1, }; static ssize_t @@ -2422,77 +2625,19 @@ store_speed_tolerance(struct device *dev, struct device_attribute *attr, return count; } -static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0); -static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0); -static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0); -static SENSOR_DEVICE_ATTR_2(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 0); -static SENSOR_DEVICE_ATTR_2(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 0); - -static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode, - store_pwm_mode, 0); -static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode, - store_pwm_mode, 1); -static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode, - store_pwm_mode, 2); -static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode, - store_pwm_mode, 3); -static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode, - store_pwm_mode, 4); - -static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable, - store_pwm_enable, 0); -static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable, - store_pwm_enable, 1); -static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable, - store_pwm_enable, 2); -static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable, - store_pwm_enable, 3); -static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable, - store_pwm_enable, 4); - -static SENSOR_DEVICE_ATTR(pwm1_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_temp_sel, store_pwm_temp_sel, 0); -static SENSOR_DEVICE_ATTR(pwm2_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_temp_sel, store_pwm_temp_sel, 1); -static SENSOR_DEVICE_ATTR(pwm3_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_temp_sel, store_pwm_temp_sel, 2); -static SENSOR_DEVICE_ATTR(pwm4_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_temp_sel, store_pwm_temp_sel, 3); -static SENSOR_DEVICE_ATTR(pwm5_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_temp_sel, store_pwm_temp_sel, 4); - -static SENSOR_DEVICE_ATTR(pwm1_target_temp, S_IWUSR | S_IRUGO, show_target_temp, - store_target_temp, 0); -static SENSOR_DEVICE_ATTR(pwm2_target_temp, S_IWUSR | S_IRUGO, show_target_temp, - store_target_temp, 1); -static SENSOR_DEVICE_ATTR(pwm3_target_temp, S_IWUSR | S_IRUGO, show_target_temp, - store_target_temp, 2); -static SENSOR_DEVICE_ATTR(pwm4_target_temp, S_IWUSR | S_IRUGO, show_target_temp, - store_target_temp, 3); -static SENSOR_DEVICE_ATTR(pwm5_target_temp, S_IWUSR | S_IRUGO, show_target_temp, - store_target_temp, 4); - -static SENSOR_DEVICE_ATTR(fan1_target, S_IWUSR | S_IRUGO, show_target_speed, - store_target_speed, 0); -static SENSOR_DEVICE_ATTR(fan2_target, S_IWUSR | S_IRUGO, show_target_speed, - store_target_speed, 1); -static SENSOR_DEVICE_ATTR(fan3_target, S_IWUSR | S_IRUGO, show_target_speed, - store_target_speed, 2); -static SENSOR_DEVICE_ATTR(fan4_target, S_IWUSR | S_IRUGO, show_target_speed, - store_target_speed, 3); -static SENSOR_DEVICE_ATTR(fan5_target, S_IWUSR | S_IRUGO, show_target_speed, - store_target_speed, 4); - -static SENSOR_DEVICE_ATTR(fan1_tolerance, S_IWUSR | S_IRUGO, - show_speed_tolerance, store_speed_tolerance, 0); -static SENSOR_DEVICE_ATTR(fan2_tolerance, S_IWUSR | S_IRUGO, - show_speed_tolerance, store_speed_tolerance, 1); -static SENSOR_DEVICE_ATTR(fan3_tolerance, S_IWUSR | S_IRUGO, - show_speed_tolerance, store_speed_tolerance, 2); -static SENSOR_DEVICE_ATTR(fan4_tolerance, S_IWUSR | S_IRUGO, - show_speed_tolerance, store_speed_tolerance, 3); -static SENSOR_DEVICE_ATTR(fan5_tolerance, S_IWUSR | S_IRUGO, - show_speed_tolerance, store_speed_tolerance, 4); +SENSOR_TEMPLATE_2(pwm, "pwm%d", S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0); +SENSOR_TEMPLATE(pwm_mode, "pwm%d_mode", S_IWUSR | S_IRUGO, show_pwm_mode, + store_pwm_mode, 0); +SENSOR_TEMPLATE(pwm_enable, "pwm%d_enable", S_IWUSR | S_IRUGO, show_pwm_enable, + store_pwm_enable, 0); +SENSOR_TEMPLATE(pwm_temp_sel, "pwm%d_temp_sel", S_IWUSR | S_IRUGO, + show_pwm_temp_sel, store_pwm_temp_sel, 0); +SENSOR_TEMPLATE(pwm_target_temp, "pwm%d_target_temp", S_IWUSR | S_IRUGO, + show_target_temp, store_target_temp, 0); +SENSOR_TEMPLATE(fan_target, "fan%d_target", S_IWUSR | S_IRUGO, + show_target_speed, store_target_speed, 0); +SENSOR_TEMPLATE(fan_tolerance, "fan%d_tolerance", S_IWUSR | S_IRUGO, + show_speed_tolerance, store_speed_tolerance, 0); /* Smart Fan registers */ @@ -2531,79 +2676,18 @@ store_weight_temp(struct device *dev, struct device_attribute *attr, return count; } -static SENSOR_DEVICE_ATTR(pwm1_weight_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, - 0); -static SENSOR_DEVICE_ATTR(pwm2_weight_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, - 1); -static SENSOR_DEVICE_ATTR(pwm3_weight_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, - 2); -static SENSOR_DEVICE_ATTR(pwm4_weight_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, - 3); -static SENSOR_DEVICE_ATTR(pwm5_weight_temp_sel, S_IWUSR | S_IRUGO, - show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, - 4); - -static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 0, 0); -static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 1, 0); -static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 2, 0); -static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 3, 0); -static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 4, 0); - -static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_tol, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 0, 1); -static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_tol, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 1, 1); -static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_tol, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 2, 1); -static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_tol, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 3, 1); -static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_tol, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 4, 1); - -static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_base, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 0, 2); -static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_base, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 1, 2); -static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_base, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 2, 2); -static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_base, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 3, 2); -static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_base, S_IWUSR | S_IRUGO, - show_weight_temp, store_weight_temp, 4, 2); - -static SENSOR_DEVICE_ATTR_2(pwm1_weight_duty_step, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 0, 5); -static SENSOR_DEVICE_ATTR_2(pwm2_weight_duty_step, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 1, 5); -static SENSOR_DEVICE_ATTR_2(pwm3_weight_duty_step, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 2, 5); -static SENSOR_DEVICE_ATTR_2(pwm4_weight_duty_step, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 3, 5); -static SENSOR_DEVICE_ATTR_2(pwm5_weight_duty_step, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 4, 5); - -/* duty_base is not supported on all chips */ -static struct sensor_device_attribute_2 sda_weight_duty_base[] = { - SENSOR_ATTR_2(pwm1_weight_duty_base, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 0, 6), - SENSOR_ATTR_2(pwm2_weight_duty_base, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 1, 6), - SENSOR_ATTR_2(pwm3_weight_duty_base, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 2, 6), - SENSOR_ATTR_2(pwm4_weight_duty_base, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 3, 6), - SENSOR_ATTR_2(pwm5_weight_duty_base, S_IWUSR | S_IRUGO, - show_pwm, store_pwm, 4, 6), -}; +SENSOR_TEMPLATE(pwm_weight_temp_sel, "pwm%d_weight_temp_sel", S_IWUSR | S_IRUGO, + show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, 0); +SENSOR_TEMPLATE_2(pwm_weight_temp_step, "pwm%d_weight_temp_step", + S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 0); +SENSOR_TEMPLATE_2(pwm_weight_temp_step_tol, "pwm%d_weight_temp_step_tol", + S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 1); +SENSOR_TEMPLATE_2(pwm_weight_temp_step_base, "pwm%d_weight_temp_step_base", + S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 2); +SENSOR_TEMPLATE_2(pwm_weight_duty_step, "pwm%d_weight_duty_step", + S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 5); +SENSOR_TEMPLATE_2(pwm_weight_duty_base, "pwm%d_weight_duty_base", + S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 6); static ssize_t show_fan_time(struct device *dev, struct device_attribute *attr, char *buf) @@ -2651,227 +2735,6 @@ show_name(struct device *dev, struct device_attribute *attr, char *buf) static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); -static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 0, 0); -static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 1, 0); -static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 2, 0); -static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 3, 0); -static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 4, 0); - -static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 0, 1); -static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 1, 1); -static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 2, 1); -static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 3, 1); -static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, - store_fan_time, 4, 1); - -static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO, - show_fan_time, store_fan_time, 0, 2); -static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO, - show_fan_time, store_fan_time, 1, 2); -static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO, - show_fan_time, store_fan_time, 2, 2); -static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO, - show_fan_time, store_fan_time, 3, 2); -static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO, - show_fan_time, store_fan_time, 4, 2); - -static SENSOR_DEVICE_ATTR_2(pwm1_start, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 0, 1); -static SENSOR_DEVICE_ATTR_2(pwm2_start, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 1, 1); -static SENSOR_DEVICE_ATTR_2(pwm3_start, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 2, 1); -static SENSOR_DEVICE_ATTR_2(pwm4_start, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 3, 1); -static SENSOR_DEVICE_ATTR_2(pwm5_start, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 4, 1); - -static SENSOR_DEVICE_ATTR_2(pwm1_floor, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 0, 2); -static SENSOR_DEVICE_ATTR_2(pwm2_floor, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 1, 2); -static SENSOR_DEVICE_ATTR_2(pwm3_floor, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 2, 2); -static SENSOR_DEVICE_ATTR_2(pwm4_floor, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 3, 2); -static SENSOR_DEVICE_ATTR_2(pwm5_floor, S_IWUSR | S_IRUGO, show_pwm, - store_pwm, 4, 2); - -static SENSOR_DEVICE_ATTR_2(pwm1_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 0, 0); -static SENSOR_DEVICE_ATTR_2(pwm2_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 1, 0); -static SENSOR_DEVICE_ATTR_2(pwm3_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 2, 0); -static SENSOR_DEVICE_ATTR_2(pwm4_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 3, 0); -static SENSOR_DEVICE_ATTR_2(pwm5_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 4, 0); - -static SENSOR_DEVICE_ATTR_2(pwm1_crit_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 0, 1); -static SENSOR_DEVICE_ATTR_2(pwm2_crit_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 1, 1); -static SENSOR_DEVICE_ATTR_2(pwm3_crit_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 2, 1); -static SENSOR_DEVICE_ATTR_2(pwm4_crit_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 3, 1); -static SENSOR_DEVICE_ATTR_2(pwm5_crit_temp_tolerance, S_IWUSR | S_IRUGO, - show_temp_tolerance, store_temp_tolerance, 4, 1); - -/* pwm_max is not supported on all chips */ -static struct sensor_device_attribute_2 sda_pwm_max[] = { - SENSOR_ATTR_2(pwm1_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, - 0, 3), - SENSOR_ATTR_2(pwm2_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, - 1, 3), - SENSOR_ATTR_2(pwm3_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, - 2, 3), - SENSOR_ATTR_2(pwm4_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, - 3, 3), - SENSOR_ATTR_2(pwm5_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, - 4, 3), -}; - -/* pwm_step is not supported on all chips */ -static struct sensor_device_attribute_2 sda_pwm_step[] = { - SENSOR_ATTR_2(pwm1_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 4), - SENSOR_ATTR_2(pwm2_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 4), - SENSOR_ATTR_2(pwm3_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 4), - SENSOR_ATTR_2(pwm4_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 4), - SENSOR_ATTR_2(pwm5_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 4), -}; - -static struct attribute *nct6775_attributes_pwm[5][20] = { - { - &sensor_dev_attr_pwm1.dev_attr.attr, - &sensor_dev_attr_pwm1_mode.dev_attr.attr, - &sensor_dev_attr_pwm1_enable.dev_attr.attr, - &sensor_dev_attr_pwm1_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm1_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm1_crit_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm1_target_temp.dev_attr.attr, - &sensor_dev_attr_fan1_target.dev_attr.attr, - &sensor_dev_attr_fan1_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm1_stop_time.dev_attr.attr, - &sensor_dev_attr_pwm1_step_up_time.dev_attr.attr, - &sensor_dev_attr_pwm1_step_down_time.dev_attr.attr, - &sensor_dev_attr_pwm1_start.dev_attr.attr, - &sensor_dev_attr_pwm1_floor.dev_attr.attr, - &sensor_dev_attr_pwm1_weight_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm1_weight_temp_step.dev_attr.attr, - &sensor_dev_attr_pwm1_weight_temp_step_tol.dev_attr.attr, - &sensor_dev_attr_pwm1_weight_temp_step_base.dev_attr.attr, - &sensor_dev_attr_pwm1_weight_duty_step.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_pwm2.dev_attr.attr, - &sensor_dev_attr_pwm2_mode.dev_attr.attr, - &sensor_dev_attr_pwm2_enable.dev_attr.attr, - &sensor_dev_attr_pwm2_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm2_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm2_crit_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm2_target_temp.dev_attr.attr, - &sensor_dev_attr_fan2_target.dev_attr.attr, - &sensor_dev_attr_fan2_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm2_stop_time.dev_attr.attr, - &sensor_dev_attr_pwm2_step_up_time.dev_attr.attr, - &sensor_dev_attr_pwm2_step_down_time.dev_attr.attr, - &sensor_dev_attr_pwm2_start.dev_attr.attr, - &sensor_dev_attr_pwm2_floor.dev_attr.attr, - &sensor_dev_attr_pwm2_weight_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm2_weight_temp_step.dev_attr.attr, - &sensor_dev_attr_pwm2_weight_temp_step_tol.dev_attr.attr, - &sensor_dev_attr_pwm2_weight_temp_step_base.dev_attr.attr, - &sensor_dev_attr_pwm2_weight_duty_step.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_pwm3.dev_attr.attr, - &sensor_dev_attr_pwm3_mode.dev_attr.attr, - &sensor_dev_attr_pwm3_enable.dev_attr.attr, - &sensor_dev_attr_pwm3_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm3_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm3_crit_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm3_target_temp.dev_attr.attr, - &sensor_dev_attr_fan3_target.dev_attr.attr, - &sensor_dev_attr_fan3_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm3_stop_time.dev_attr.attr, - &sensor_dev_attr_pwm3_step_up_time.dev_attr.attr, - &sensor_dev_attr_pwm3_step_down_time.dev_attr.attr, - &sensor_dev_attr_pwm3_start.dev_attr.attr, - &sensor_dev_attr_pwm3_floor.dev_attr.attr, - &sensor_dev_attr_pwm3_weight_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm3_weight_temp_step.dev_attr.attr, - &sensor_dev_attr_pwm3_weight_temp_step_tol.dev_attr.attr, - &sensor_dev_attr_pwm3_weight_temp_step_base.dev_attr.attr, - &sensor_dev_attr_pwm3_weight_duty_step.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_pwm4.dev_attr.attr, - &sensor_dev_attr_pwm4_mode.dev_attr.attr, - &sensor_dev_attr_pwm4_enable.dev_attr.attr, - &sensor_dev_attr_pwm4_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm4_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm4_crit_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm4_target_temp.dev_attr.attr, - &sensor_dev_attr_fan4_target.dev_attr.attr, - &sensor_dev_attr_fan4_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm4_stop_time.dev_attr.attr, - &sensor_dev_attr_pwm4_step_up_time.dev_attr.attr, - &sensor_dev_attr_pwm4_step_down_time.dev_attr.attr, - &sensor_dev_attr_pwm4_start.dev_attr.attr, - &sensor_dev_attr_pwm4_floor.dev_attr.attr, - &sensor_dev_attr_pwm4_weight_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm4_weight_temp_step.dev_attr.attr, - &sensor_dev_attr_pwm4_weight_temp_step_tol.dev_attr.attr, - &sensor_dev_attr_pwm4_weight_temp_step_base.dev_attr.attr, - &sensor_dev_attr_pwm4_weight_duty_step.dev_attr.attr, - NULL - }, - { - &sensor_dev_attr_pwm5.dev_attr.attr, - &sensor_dev_attr_pwm5_mode.dev_attr.attr, - &sensor_dev_attr_pwm5_enable.dev_attr.attr, - &sensor_dev_attr_pwm5_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm5_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm5_crit_temp_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm5_target_temp.dev_attr.attr, - &sensor_dev_attr_fan5_target.dev_attr.attr, - &sensor_dev_attr_fan5_tolerance.dev_attr.attr, - &sensor_dev_attr_pwm5_stop_time.dev_attr.attr, - &sensor_dev_attr_pwm5_step_up_time.dev_attr.attr, - &sensor_dev_attr_pwm5_step_down_time.dev_attr.attr, - &sensor_dev_attr_pwm5_start.dev_attr.attr, - &sensor_dev_attr_pwm5_floor.dev_attr.attr, - &sensor_dev_attr_pwm5_weight_temp_sel.dev_attr.attr, - &sensor_dev_attr_pwm5_weight_temp_step.dev_attr.attr, - &sensor_dev_attr_pwm5_weight_temp_step_tol.dev_attr.attr, - &sensor_dev_attr_pwm5_weight_temp_step_base.dev_attr.attr, - &sensor_dev_attr_pwm5_weight_duty_step.dev_attr.attr, - NULL - }, -}; - -static const struct attribute_group nct6775_group_pwm[5] = { - { .attrs = nct6775_attributes_pwm[0] }, - { .attrs = nct6775_attributes_pwm[1] }, - { .attrs = nct6775_attributes_pwm[2] }, - { .attrs = nct6775_attributes_pwm[3] }, - { .attrs = nct6775_attributes_pwm[4] }, -}; - static ssize_t show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf) { @@ -2927,17 +2790,19 @@ store_auto_pwm(struct device *dev, struct device_attribute *attr, break; case nct6776: break; /* always enabled, nothing to do */ + case nct6106: case nct6779: - nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr], + case nct6791: + nct6775_write_value(data, data->REG_CRITICAL_PWM[nr], val); reg = nct6775_read_value(data, - NCT6779_REG_CRITICAL_PWM_ENABLE[nr]); + data->REG_CRITICAL_PWM_ENABLE[nr]); if (val == 255) - reg &= ~0x01; + reg &= ~data->CRITICAL_PWM_ENABLE_MASK; else - reg |= 0x01; + reg |= data->CRITICAL_PWM_ENABLE_MASK; nct6775_write_value(data, - NCT6779_REG_CRITICAL_PWM_ENABLE[nr], + data->REG_CRITICAL_PWM_ENABLE[nr], reg); break; } @@ -2992,155 +2857,140 @@ store_auto_temp(struct device *dev, struct device_attribute *attr, return count; } +static umode_t nct6775_pwm_is_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct nct6775_data *data = dev_get_drvdata(dev); + int pwm = index / 36; /* pwm index */ + int nr = index % 36; /* attribute index */ + + if (!(data->has_pwm & (1 << pwm))) + return 0; + + if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */ + return 0; + if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */ + return 0; + if (nr == 21 && data->REG_PWM[6] == NULL) /* weight_duty_base */ + return 0; + + if (nr >= 22 && nr <= 35) { /* auto point */ + int api = (nr - 22) / 2; /* auto point index */ + + if (api > data->auto_pwm_num) + return 0; + } + return attr->mode; +} + +SENSOR_TEMPLATE_2(pwm_stop_time, "pwm%d_stop_time", S_IWUSR | S_IRUGO, + show_fan_time, store_fan_time, 0, 0); +SENSOR_TEMPLATE_2(pwm_step_up_time, "pwm%d_step_up_time", S_IWUSR | S_IRUGO, + show_fan_time, store_fan_time, 0, 1); +SENSOR_TEMPLATE_2(pwm_step_down_time, "pwm%d_step_down_time", S_IWUSR | S_IRUGO, + show_fan_time, store_fan_time, 0, 2); +SENSOR_TEMPLATE_2(pwm_start, "pwm%d_start", S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 0, 1); +SENSOR_TEMPLATE_2(pwm_floor, "pwm%d_floor", S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 0, 2); +SENSOR_TEMPLATE_2(pwm_temp_tolerance, "pwm%d_temp_tolerance", S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 0, 0); +SENSOR_TEMPLATE_2(pwm_crit_temp_tolerance, "pwm%d_crit_temp_tolerance", + S_IWUSR | S_IRUGO, show_temp_tolerance, store_temp_tolerance, + 0, 1); + +SENSOR_TEMPLATE_2(pwm_max, "pwm%d_max", S_IWUSR | S_IRUGO, show_pwm, store_pwm, + 0, 3); + +SENSOR_TEMPLATE_2(pwm_step, "pwm%d_step", S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 0, 4); + +SENSOR_TEMPLATE_2(pwm_auto_point1_pwm, "pwm%d_auto_point1_pwm", + S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 0); +SENSOR_TEMPLATE_2(pwm_auto_point1_temp, "pwm%d_auto_point1_temp", + S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 0); + +SENSOR_TEMPLATE_2(pwm_auto_point2_pwm, "pwm%d_auto_point2_pwm", + S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 1); +SENSOR_TEMPLATE_2(pwm_auto_point2_temp, "pwm%d_auto_point2_temp", + S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 1); + +SENSOR_TEMPLATE_2(pwm_auto_point3_pwm, "pwm%d_auto_point3_pwm", + S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 2); +SENSOR_TEMPLATE_2(pwm_auto_point3_temp, "pwm%d_auto_point3_temp", + S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 2); + +SENSOR_TEMPLATE_2(pwm_auto_point4_pwm, "pwm%d_auto_point4_pwm", + S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 3); +SENSOR_TEMPLATE_2(pwm_auto_point4_temp, "pwm%d_auto_point4_temp", + S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 3); + +SENSOR_TEMPLATE_2(pwm_auto_point5_pwm, "pwm%d_auto_point5_pwm", + S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 4); +SENSOR_TEMPLATE_2(pwm_auto_point5_temp, "pwm%d_auto_point5_temp", + S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 4); + +SENSOR_TEMPLATE_2(pwm_auto_point6_pwm, "pwm%d_auto_point6_pwm", + S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 5); +SENSOR_TEMPLATE_2(pwm_auto_point6_temp, "pwm%d_auto_point6_temp", + S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 5); + +SENSOR_TEMPLATE_2(pwm_auto_point7_pwm, "pwm%d_auto_point7_pwm", + S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 6); +SENSOR_TEMPLATE_2(pwm_auto_point7_temp, "pwm%d_auto_point7_temp", + S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 6); + /* - * The number of auto-point trip points is chip dependent. - * Need to check support while generating/removing attribute files. + * nct6775_pwm_is_visible uses the index into the following array + * to determine if attributes should be created or not. + * Any change in order or content must be matched. */ -static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = { - SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 0, 0), - SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 0, 0), - SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 0, 1), - SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 0, 1), - SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 0, 2), - SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 0, 2), - SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 0, 3), - SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 0, 3), - SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 0, 4), - SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 0, 4), - SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 0, 5), - SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 0, 5), - SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 0, 6), - SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 0, 6), - - SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 1, 0), - SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 1, 0), - SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 1, 1), - SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 1, 1), - SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 1, 2), - SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 1, 2), - SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 1, 3), - SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 1, 3), - SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 1, 4), - SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 1, 4), - SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 1, 5), - SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 1, 5), - SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 1, 6), - SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 1, 6), - - SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 2, 0), - SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 2, 0), - SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 2, 1), - SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 2, 1), - SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 2, 2), - SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 2, 2), - SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 2, 3), - SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 2, 3), - SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 2, 4), - SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 2, 4), - SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 2, 5), - SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 2, 5), - SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 2, 6), - SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 2, 6), - - SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 3, 0), - SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 3, 0), - SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 3, 1), - SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 3, 1), - SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 3, 2), - SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 3, 2), - SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 3, 3), - SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 3, 3), - SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 3, 4), - SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 3, 4), - SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 3, 5), - SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 3, 5), - SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 3, 6), - SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 3, 6), - - SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 4, 0), - SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 4, 0), - SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 4, 1), - SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 4, 1), - SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 4, 2), - SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 4, 2), - SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 4, 3), - SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 4, 3), - SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 4, 4), - SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 4, 4), - SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 4, 5), - SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 4, 5), - SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO, - show_auto_pwm, store_auto_pwm, 4, 6), - SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO, - show_auto_temp, store_auto_temp, 4, 6), +static struct sensor_device_template *nct6775_attributes_pwm_template[] = { + &sensor_dev_template_pwm, + &sensor_dev_template_pwm_mode, + &sensor_dev_template_pwm_enable, + &sensor_dev_template_pwm_temp_sel, + &sensor_dev_template_pwm_temp_tolerance, + &sensor_dev_template_pwm_crit_temp_tolerance, + &sensor_dev_template_pwm_target_temp, + &sensor_dev_template_fan_target, + &sensor_dev_template_fan_tolerance, + &sensor_dev_template_pwm_stop_time, + &sensor_dev_template_pwm_step_up_time, + &sensor_dev_template_pwm_step_down_time, + &sensor_dev_template_pwm_start, + &sensor_dev_template_pwm_floor, + &sensor_dev_template_pwm_weight_temp_sel, + &sensor_dev_template_pwm_weight_temp_step, + &sensor_dev_template_pwm_weight_temp_step_tol, + &sensor_dev_template_pwm_weight_temp_step_base, + &sensor_dev_template_pwm_weight_duty_step, + &sensor_dev_template_pwm_max, /* 19 */ + &sensor_dev_template_pwm_step, /* 20 */ + &sensor_dev_template_pwm_weight_duty_base, /* 21 */ + &sensor_dev_template_pwm_auto_point1_pwm, /* 22 */ + &sensor_dev_template_pwm_auto_point1_temp, + &sensor_dev_template_pwm_auto_point2_pwm, + &sensor_dev_template_pwm_auto_point2_temp, + &sensor_dev_template_pwm_auto_point3_pwm, + &sensor_dev_template_pwm_auto_point3_temp, + &sensor_dev_template_pwm_auto_point4_pwm, + &sensor_dev_template_pwm_auto_point4_temp, + &sensor_dev_template_pwm_auto_point5_pwm, + &sensor_dev_template_pwm_auto_point5_temp, + &sensor_dev_template_pwm_auto_point6_pwm, + &sensor_dev_template_pwm_auto_point6_temp, + &sensor_dev_template_pwm_auto_point7_pwm, + &sensor_dev_template_pwm_auto_point7_temp, /* 35 */ + + NULL +}; + +static struct sensor_template_group nct6775_pwm_template_group = { + .templates = nct6775_attributes_pwm_template, + .is_visible = nct6775_pwm_is_visible, + .base = 1, }; static ssize_t @@ -3159,7 +3009,6 @@ clear_caseopen(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct nct6775_data *data = dev_get_drvdata(dev); - struct nct6775_sio_data *sio_data = dev->platform_data; int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE; unsigned long val; u8 reg; @@ -3175,19 +3024,19 @@ clear_caseopen(struct device *dev, struct device_attribute *attr, * The CR registers are the same for all chips, and not all chips * support clearing the caseopen status through "regular" registers. */ - ret = superio_enter(sio_data->sioreg); + ret = superio_enter(data->sioreg); if (ret) { count = ret; goto error; } - superio_select(sio_data->sioreg, NCT6775_LD_ACPI); - reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]); + superio_select(data->sioreg, NCT6775_LD_ACPI); + reg = superio_inb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]); reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr]; - superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg); + superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg); reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr]; - superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg); - superio_exit(sio_data->sioreg); + superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg); + superio_exit(data->sioreg); data->valid = false; /* Force cache refresh */ error: @@ -3195,71 +3044,79 @@ error: return count; } -static struct sensor_device_attribute sda_caseopen[] = { - SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm, - clear_caseopen, INTRUSION_ALARM_BASE), - SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm, - clear_caseopen, INTRUSION_ALARM_BASE + 1), -}; - -/* - * Driver and device management - */ - -static void nct6775_device_remove_files(struct device *dev) +static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm, + clear_caseopen, INTRUSION_ALARM_BASE); +static SENSOR_DEVICE_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm, + clear_caseopen, INTRUSION_ALARM_BASE + 1); +static SENSOR_DEVICE_ATTR(intrusion0_beep, S_IWUSR | S_IRUGO, show_beep, + store_beep, INTRUSION_ALARM_BASE); +static SENSOR_DEVICE_ATTR(intrusion1_beep, S_IWUSR | S_IRUGO, show_beep, + store_beep, INTRUSION_ALARM_BASE + 1); +static SENSOR_DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_beep, + store_beep, BEEP_ENABLE_BASE); + +static umode_t nct6775_other_is_visible(struct kobject *kobj, + struct attribute *attr, int index) { - /* - * some entries in the following arrays may not have been used in - * device_create_file(), but device_remove_file() will ignore them - */ - int i; + struct device *dev = container_of(kobj, struct device, kobj); struct nct6775_data *data = dev_get_drvdata(dev); - for (i = 0; i < data->pwm_num; i++) - sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]); + if (index == 1 && !data->have_vid) + return 0; - for (i = 0; i < ARRAY_SIZE(sda_pwm_max); i++) - device_remove_file(dev, &sda_pwm_max[i].dev_attr); + if (index == 2 || index == 3) { + if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 2] < 0) + return 0; + } + + if (index == 4 || index == 5) { + if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 4] < 0) + return 0; + } - for (i = 0; i < ARRAY_SIZE(sda_pwm_step); i++) - device_remove_file(dev, &sda_pwm_step[i].dev_attr); + return attr->mode; +} - for (i = 0; i < ARRAY_SIZE(sda_weight_duty_base); i++) - device_remove_file(dev, &sda_weight_duty_base[i].dev_attr); +/* + * nct6775_other_is_visible uses the index into the following array + * to determine if attributes should be created or not. + * Any change in order or content must be matched. + */ +static struct attribute *nct6775_attributes_other[] = { + &dev_attr_name.attr, + &dev_attr_cpu0_vid.attr, /* 1 */ + &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, /* 2 */ + &sensor_dev_attr_intrusion1_alarm.dev_attr.attr, /* 3 */ + &sensor_dev_attr_intrusion0_beep.dev_attr.attr, /* 4 */ + &sensor_dev_attr_intrusion1_beep.dev_attr.attr, /* 5 */ + &sensor_dev_attr_beep_enable.dev_attr.attr, /* 6 */ + + NULL +}; - for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) - device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr); +static const struct attribute_group nct6775_group_other = { + .attrs = nct6775_attributes_other, + .is_visible = nct6775_other_is_visible, +}; - for (i = 0; i < data->in_num; i++) - sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]); +/* + * Driver and device management + */ - for (i = 0; i < 5; i++) { - device_remove_file(dev, &sda_fan_input[i].dev_attr); - device_remove_file(dev, &sda_fan_alarm[i].dev_attr); - device_remove_file(dev, &sda_fan_div[i].dev_attr); - device_remove_file(dev, &sda_fan_min[i].dev_attr); - device_remove_file(dev, &sda_fan_pulses[i].dev_attr); - } - for (i = 0; i < NUM_TEMP; i++) { - if (!(data->have_temp & (1 << i))) - continue; - device_remove_file(dev, &sda_temp_input[i].dev_attr); - device_remove_file(dev, &sda_temp_label[i].dev_attr); - device_remove_file(dev, &sda_temp_max[i].dev_attr); - device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr); - device_remove_file(dev, &sda_temp_crit[i].dev_attr); - device_remove_file(dev, &sda_temp_alarm[i].dev_attr); - if (!(data->have_temp_fixed & (1 << i))) - continue; - device_remove_file(dev, &sda_temp_type[i].dev_attr); - device_remove_file(dev, &sda_temp_offset[i].dev_attr); - } +static void nct6775_device_remove_files(struct device *dev) +{ + struct nct6775_data *data = dev_get_drvdata(dev); - device_remove_file(dev, &sda_caseopen[0].dev_attr); - device_remove_file(dev, &sda_caseopen[1].dev_attr); + if (data->group_pwm) + sysfs_remove_group(&dev->kobj, data->group_pwm); + if (data->group_in) + sysfs_remove_group(&dev->kobj, data->group_in); + if (data->group_fan) + sysfs_remove_group(&dev->kobj, data->group_fan); + if (data->group_temp) + sysfs_remove_group(&dev->kobj, data->group_temp); - device_remove_file(dev, &dev_attr_name); - device_remove_file(dev, &dev_attr_cpu0_vid); + sysfs_remove_group(&dev->kobj, &nct6775_group_other); } /* Get the monitoring functions started */ @@ -3297,68 +3154,78 @@ static inline void nct6775_init_device(struct nct6775_data *data) for (i = 0; i < data->temp_fixed_num; i++) { if (!(data->have_temp_fixed & (1 << i))) continue; - if ((tmp & (0x02 << i))) /* diode */ - data->temp_type[i] = 3 - ((diode >> i) & 0x02); + if ((tmp & (data->DIODE_MASK << i))) /* diode */ + data->temp_type[i] + = 3 - ((diode >> i) & data->DIODE_MASK); else /* thermistor */ data->temp_type[i] = 4; } } -static int -nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data, - struct nct6775_data *data) +static void +nct6775_check_fan_inputs(struct nct6775_data *data) { + bool fan3pin, fan4pin, fan4min, fan5pin, fan6pin; + bool pwm3pin, pwm4pin, pwm5pin, pwm6pin; + int sioreg = data->sioreg; int regval; - bool fan3pin, fan3min, fan4pin, fan4min, fan5pin; - bool pwm3pin, pwm4pin, pwm5pin; - int ret; - - ret = superio_enter(sio_data->sioreg); - if (ret) - return ret; /* fan4 and fan5 share some pins with the GPIO and serial flash */ if (data->kind == nct6775) { - regval = superio_inb(sio_data->sioreg, 0x2c); + regval = superio_inb(sioreg, 0x2c); fan3pin = regval & (1 << 6); - fan3min = fan3pin; pwm3pin = regval & (1 << 7); /* On NCT6775, fan4 shares pins with the fdc interface */ - fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80); - fan4min = 0; - fan5pin = 0; - pwm4pin = 0; - pwm5pin = 0; + fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80); + fan4min = false; + fan5pin = false; + fan6pin = false; + pwm4pin = false; + pwm5pin = false; + pwm6pin = false; } else if (data->kind == nct6776) { - bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80; + bool gpok = superio_inb(sioreg, 0x27) & 0x80; - superio_select(sio_data->sioreg, NCT6775_LD_HWM); - regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE); + superio_select(sioreg, NCT6775_LD_HWM); + regval = superio_inb(sioreg, SIO_REG_ENABLE); if (regval & 0x80) fan3pin = gpok; else - fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40); + fan3pin = !(superio_inb(sioreg, 0x24) & 0x40); if (regval & 0x40) fan4pin = gpok; else - fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01; + fan4pin = superio_inb(sioreg, 0x1C) & 0x01; if (regval & 0x20) fan5pin = gpok; else - fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02; + fan5pin = superio_inb(sioreg, 0x1C) & 0x02; fan4min = fan4pin; - fan3min = fan3pin; + fan6pin = false; pwm3pin = fan3pin; - pwm4pin = 0; - pwm5pin = 0; - } else { /* NCT6779D */ - regval = superio_inb(sio_data->sioreg, 0x1c); + pwm4pin = false; + pwm5pin = false; + pwm6pin = false; + } else if (data->kind == nct6106) { + regval = superio_inb(sioreg, 0x24); + fan3pin = !(regval & 0x80); + pwm3pin = regval & 0x08; + + fan4pin = false; + fan4min = false; + fan5pin = false; + fan6pin = false; + pwm4pin = false; + pwm5pin = false; + pwm6pin = false; + } else { /* NCT6779D or NCT6791D */ + regval = superio_inb(sioreg, 0x1c); fan3pin = !(regval & (1 << 5)); fan4pin = !(regval & (1 << 6)); @@ -3368,22 +3235,25 @@ nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data, pwm4pin = !(regval & (1 << 1)); pwm5pin = !(regval & (1 << 2)); - fan3min = fan3pin; fan4min = fan4pin; - } - - superio_exit(sio_data->sioreg); - data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */ - data->has_fan |= fan3pin << 2; - data->has_fan_min |= fan3min << 2; - - data->has_fan |= (fan4pin << 3) | (fan5pin << 4); - data->has_fan_min |= (fan4min << 3) | (fan5pin << 4); - - data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | (pwm5pin << 4); + if (data->kind == nct6791) { + regval = superio_inb(sioreg, 0x2d); + fan6pin = (regval & (1 << 1)); + pwm6pin = (regval & (1 << 0)); + } else { /* NCT6779D */ + fan6pin = false; + pwm6pin = false; + } + } - return 0; + /* fan 1 and 2 (0x03) are always present */ + data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) | + (fan5pin << 4) | (fan6pin << 5); + data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) | + (fan5pin << 4); + data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | + (pwm5pin << 4) | (pwm6pin << 5); } static void add_temp_sensors(struct nct6775_data *data, const u16 *regp, @@ -3415,16 +3285,17 @@ static void add_temp_sensors(struct nct6775_data *data, const u16 *regp, static int nct6775_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct nct6775_sio_data *sio_data = dev->platform_data; + struct nct6775_sio_data *sio_data = dev_get_platdata(dev); struct nct6775_data *data; struct resource *res; int i, s, err = 0; int src, mask, available; const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config; const u16 *reg_temp_alternate, *reg_temp_crit; + const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL; int num_reg_temp; - bool have_vid = false; u8 cr2a; + struct attribute_group *group; res = platform_get_resource(pdev, IORESOURCE_IO, 0); if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH, @@ -3437,6 +3308,7 @@ static int nct6775_probe(struct platform_device *pdev) return -ENOMEM; data->kind = sio_data->kind; + data->sioreg = sio_data->sioreg; data->addr = res->start; mutex_init(&data->update_lock); data->name = nct6775_device_names[data->kind]; @@ -3444,6 +3316,75 @@ static int nct6775_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); switch (data->kind) { + case nct6106: + data->in_num = 9; + data->pwm_num = 3; + data->auto_pwm_num = 4; + data->temp_fixed_num = 3; + data->num_temp_alarms = 6; + data->num_temp_beeps = 6; + + data->fan_from_reg = fan_from_reg13; + data->fan_from_reg_min = fan_from_reg13; + + data->temp_label = nct6776_temp_label; + data->temp_label_num = ARRAY_SIZE(nct6776_temp_label); + + data->REG_VBAT = NCT6106_REG_VBAT; + data->REG_DIODE = NCT6106_REG_DIODE; + data->DIODE_MASK = NCT6106_DIODE_MASK; + data->REG_VIN = NCT6106_REG_IN; + data->REG_IN_MINMAX[0] = NCT6106_REG_IN_MIN; + data->REG_IN_MINMAX[1] = NCT6106_REG_IN_MAX; + data->REG_TARGET = NCT6106_REG_TARGET; + data->REG_FAN = NCT6106_REG_FAN; + data->REG_FAN_MODE = NCT6106_REG_FAN_MODE; + data->REG_FAN_MIN = NCT6106_REG_FAN_MIN; + data->REG_FAN_PULSES = NCT6106_REG_FAN_PULSES; + data->FAN_PULSE_SHIFT = NCT6106_FAN_PULSE_SHIFT; + data->REG_FAN_TIME[0] = NCT6106_REG_FAN_STOP_TIME; + data->REG_FAN_TIME[1] = NCT6106_REG_FAN_STEP_UP_TIME; + data->REG_FAN_TIME[2] = NCT6106_REG_FAN_STEP_DOWN_TIME; + data->REG_PWM[0] = NCT6106_REG_PWM; + data->REG_PWM[1] = NCT6106_REG_FAN_START_OUTPUT; + data->REG_PWM[2] = NCT6106_REG_FAN_STOP_OUTPUT; + data->REG_PWM[5] = NCT6106_REG_WEIGHT_DUTY_STEP; + data->REG_PWM[6] = NCT6106_REG_WEIGHT_DUTY_BASE; + data->REG_PWM_READ = NCT6106_REG_PWM_READ; + data->REG_PWM_MODE = NCT6106_REG_PWM_MODE; + data->PWM_MODE_MASK = NCT6106_PWM_MODE_MASK; + data->REG_AUTO_TEMP = NCT6106_REG_AUTO_TEMP; + data->REG_AUTO_PWM = NCT6106_REG_AUTO_PWM; + data->REG_CRITICAL_TEMP = NCT6106_REG_CRITICAL_TEMP; + data->REG_CRITICAL_TEMP_TOLERANCE + = NCT6106_REG_CRITICAL_TEMP_TOLERANCE; + data->REG_CRITICAL_PWM_ENABLE = NCT6106_REG_CRITICAL_PWM_ENABLE; + data->CRITICAL_PWM_ENABLE_MASK + = NCT6106_CRITICAL_PWM_ENABLE_MASK; + data->REG_CRITICAL_PWM = NCT6106_REG_CRITICAL_PWM; + data->REG_TEMP_OFFSET = NCT6106_REG_TEMP_OFFSET; + data->REG_TEMP_SOURCE = NCT6106_REG_TEMP_SOURCE; + data->REG_TEMP_SEL = NCT6106_REG_TEMP_SEL; + data->REG_WEIGHT_TEMP_SEL = NCT6106_REG_WEIGHT_TEMP_SEL; + data->REG_WEIGHT_TEMP[0] = NCT6106_REG_WEIGHT_TEMP_STEP; + data->REG_WEIGHT_TEMP[1] = NCT6106_REG_WEIGHT_TEMP_STEP_TOL; + data->REG_WEIGHT_TEMP[2] = NCT6106_REG_WEIGHT_TEMP_BASE; + data->REG_ALARM = NCT6106_REG_ALARM; + data->ALARM_BITS = NCT6106_ALARM_BITS; + data->REG_BEEP = NCT6106_REG_BEEP; + data->BEEP_BITS = NCT6106_BEEP_BITS; + + reg_temp = NCT6106_REG_TEMP; + num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP); + reg_temp_over = NCT6106_REG_TEMP_OVER; + reg_temp_hyst = NCT6106_REG_TEMP_HYST; + reg_temp_config = NCT6106_REG_TEMP_CONFIG; + reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE; + reg_temp_crit = NCT6106_REG_TEMP_CRIT; + reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L; + reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H; + + break; case nct6775: data->in_num = 9; data->pwm_num = 3; @@ -3451,8 +3392,10 @@ static int nct6775_probe(struct platform_device *pdev) data->has_fan_div = true; data->temp_fixed_num = 3; data->num_temp_alarms = 3; + data->num_temp_beeps = 3; data->ALARM_BITS = NCT6775_ALARM_BITS; + data->BEEP_BITS = NCT6775_BEEP_BITS; data->fan_from_reg = fan_from_reg16; data->fan_from_reg_min = fan_from_reg8; @@ -3466,6 +3409,7 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_CONFIG = NCT6775_REG_CONFIG; data->REG_VBAT = NCT6775_REG_VBAT; data->REG_DIODE = NCT6775_REG_DIODE; + data->DIODE_MASK = NCT6775_DIODE_MASK; data->REG_VIN = NCT6775_REG_IN; data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; @@ -3474,6 +3418,7 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_FAN_MODE = NCT6775_REG_FAN_MODE; data->REG_FAN_MIN = NCT6775_REG_FAN_MIN; data->REG_FAN_PULSES = NCT6775_REG_FAN_PULSES; + data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT; data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME; data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME; data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME; @@ -3499,6 +3444,7 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL; data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE; data->REG_ALARM = NCT6775_REG_ALARM; + data->REG_BEEP = NCT6775_REG_BEEP; reg_temp = NCT6775_REG_TEMP; num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP); @@ -3516,8 +3462,10 @@ static int nct6775_probe(struct platform_device *pdev) data->has_fan_div = false; data->temp_fixed_num = 3; data->num_temp_alarms = 3; + data->num_temp_beeps = 6; data->ALARM_BITS = NCT6776_ALARM_BITS; + data->BEEP_BITS = NCT6776_BEEP_BITS; data->fan_from_reg = fan_from_reg13; data->fan_from_reg_min = fan_from_reg13; @@ -3531,6 +3479,7 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_CONFIG = NCT6775_REG_CONFIG; data->REG_VBAT = NCT6775_REG_VBAT; data->REG_DIODE = NCT6775_REG_DIODE; + data->DIODE_MASK = NCT6775_DIODE_MASK; data->REG_VIN = NCT6775_REG_IN; data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; @@ -3539,6 +3488,7 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_FAN_MODE = NCT6775_REG_FAN_MODE; data->REG_FAN_MIN = NCT6776_REG_FAN_MIN; data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES; + data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT; data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME; data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME; data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME; @@ -3564,6 +3514,7 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL; data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE; data->REG_ALARM = NCT6775_REG_ALARM; + data->REG_BEEP = NCT6776_REG_BEEP; reg_temp = NCT6775_REG_TEMP; num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP); @@ -3581,8 +3532,10 @@ static int nct6775_probe(struct platform_device *pdev) data->has_fan_div = false; data->temp_fixed_num = 6; data->num_temp_alarms = 2; + data->num_temp_beeps = 2; data->ALARM_BITS = NCT6779_ALARM_BITS; + data->BEEP_BITS = NCT6779_BEEP_BITS; data->fan_from_reg = fan_from_reg13; data->fan_from_reg_min = fan_from_reg13; @@ -3596,6 +3549,7 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_CONFIG = NCT6775_REG_CONFIG; data->REG_VBAT = NCT6775_REG_VBAT; data->REG_DIODE = NCT6775_REG_DIODE; + data->DIODE_MASK = NCT6775_DIODE_MASK; data->REG_VIN = NCT6779_REG_IN; data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; @@ -3604,6 +3558,7 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_FAN_MODE = NCT6775_REG_FAN_MODE; data->REG_FAN_MIN = NCT6776_REG_FAN_MIN; data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES; + data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT; data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME; data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME; data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME; @@ -3621,6 +3576,10 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP; data->REG_CRITICAL_TEMP_TOLERANCE = NCT6775_REG_CRITICAL_TEMP_TOLERANCE; + data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE; + data->CRITICAL_PWM_ENABLE_MASK + = NCT6779_CRITICAL_PWM_ENABLE_MASK; + data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM; data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET; data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL; @@ -3629,6 +3588,81 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL; data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE; data->REG_ALARM = NCT6779_REG_ALARM; + data->REG_BEEP = NCT6776_REG_BEEP; + + reg_temp = NCT6779_REG_TEMP; + num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP); + reg_temp_over = NCT6779_REG_TEMP_OVER; + reg_temp_hyst = NCT6779_REG_TEMP_HYST; + reg_temp_config = NCT6779_REG_TEMP_CONFIG; + reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE; + reg_temp_crit = NCT6779_REG_TEMP_CRIT; + + break; + case nct6791: + data->in_num = 15; + data->pwm_num = 6; + data->auto_pwm_num = 4; + data->has_fan_div = false; + data->temp_fixed_num = 6; + data->num_temp_alarms = 2; + data->num_temp_beeps = 2; + + data->ALARM_BITS = NCT6791_ALARM_BITS; + data->BEEP_BITS = NCT6779_BEEP_BITS; + + data->fan_from_reg = fan_from_reg13; + data->fan_from_reg_min = fan_from_reg13; + data->target_temp_mask = 0xff; + data->tolerance_mask = 0x07; + data->speed_tolerance_limit = 63; + + data->temp_label = nct6779_temp_label; + data->temp_label_num = ARRAY_SIZE(nct6779_temp_label); + + data->REG_CONFIG = NCT6775_REG_CONFIG; + data->REG_VBAT = NCT6775_REG_VBAT; + data->REG_DIODE = NCT6775_REG_DIODE; + data->DIODE_MASK = NCT6775_DIODE_MASK; + data->REG_VIN = NCT6779_REG_IN; + data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; + data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; + data->REG_TARGET = NCT6775_REG_TARGET; + data->REG_FAN = NCT6779_REG_FAN; + data->REG_FAN_MODE = NCT6775_REG_FAN_MODE; + data->REG_FAN_MIN = NCT6776_REG_FAN_MIN; + data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES; + data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT; + data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME; + data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME; + data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME; + data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H; + data->REG_PWM[0] = NCT6775_REG_PWM; + data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT; + data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT; + data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP; + data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE; + data->REG_PWM_READ = NCT6775_REG_PWM_READ; + data->REG_PWM_MODE = NCT6776_REG_PWM_MODE; + data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK; + data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP; + data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM; + data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP; + data->REG_CRITICAL_TEMP_TOLERANCE + = NCT6775_REG_CRITICAL_TEMP_TOLERANCE; + data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE; + data->CRITICAL_PWM_ENABLE_MASK + = NCT6779_CRITICAL_PWM_ENABLE_MASK; + data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM; + data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET; + data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; + data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL; + data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL; + data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP; + data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL; + data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE; + data->REG_ALARM = NCT6791_REG_ALARM; + data->REG_BEEP = NCT6776_REG_BEEP; reg_temp = NCT6779_REG_TEMP; num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP); @@ -3700,6 +3734,13 @@ static int nct6775_probe(struct platform_device *pdev) data->reg_temp[0][src - 1] = reg_temp[i]; data->reg_temp[1][src - 1] = reg_temp_over[i]; data->reg_temp[2][src - 1] = reg_temp_hyst[i]; + if (reg_temp_crit_h && reg_temp_crit_h[i]) + data->reg_temp[3][src - 1] = reg_temp_crit_h[i]; + else if (reg_temp_crit[src - 1]) + data->reg_temp[3][src - 1] + = reg_temp_crit[src - 1]; + if (reg_temp_crit_l && reg_temp_crit_l[i]) + data->reg_temp[4][src - 1] = reg_temp_crit_l[i]; data->reg_temp_config[src - 1] = reg_temp_config[i]; data->temp_src[src - 1] = src; continue; @@ -3714,8 +3755,12 @@ static int nct6775_probe(struct platform_device *pdev) data->reg_temp[1][s] = reg_temp_over[i]; data->reg_temp[2][s] = reg_temp_hyst[i]; data->reg_temp_config[s] = reg_temp_config[i]; - if (reg_temp_crit[src - 1]) + if (reg_temp_crit_h && reg_temp_crit_h[i]) + data->reg_temp[3][s] = reg_temp_crit_h[i]; + else if (reg_temp_crit[src - 1]) data->reg_temp[3][s] = reg_temp_crit[src - 1]; + if (reg_temp_crit_l && reg_temp_crit_l[i]) + data->reg_temp[4][s] = reg_temp_crit_l[i]; data->temp_src[s] = src; s++; @@ -3767,12 +3812,14 @@ static int nct6775_probe(struct platform_device *pdev) cr2a = superio_inb(sio_data->sioreg, 0x2a); switch (data->kind) { case nct6775: - have_vid = (cr2a & 0x40); + data->have_vid = (cr2a & 0x40); break; case nct6776: - have_vid = (cr2a & 0x60) == 0x40; + data->have_vid = (cr2a & 0x60) == 0x40; break; + case nct6106: case nct6779: + case nct6791: break; } @@ -3780,7 +3827,7 @@ static int nct6775_probe(struct platform_device *pdev) * Read VID value * We can get the VID input values directly at logical device D 0xe3. */ - if (have_vid) { + if (data->have_vid) { superio_select(sio_data->sioreg, NCT6775_LD_VID); data->vid = superio_inb(sio_data->sioreg, 0xe3); data->vrm = vid_which_vrm(); @@ -3793,6 +3840,9 @@ static int nct6775_probe(struct platform_device *pdev) tmp = superio_inb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE); switch (data->kind) { + case nct6106: + tmp |= 0xe0; + break; case nct6775: tmp |= 0x1e; break; @@ -3800,6 +3850,9 @@ static int nct6775_probe(struct platform_device *pdev) case nct6779: tmp |= 0x3e; break; + case nct6791: + tmp |= 0x7e; + break; } superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE, tmp); @@ -3807,157 +3860,47 @@ static int nct6775_probe(struct platform_device *pdev) data->name); } - superio_exit(sio_data->sioreg); - - if (have_vid) { - err = device_create_file(dev, &dev_attr_cpu0_vid); - if (err) - return err; - } + nct6775_check_fan_inputs(data); - err = nct6775_check_fan_inputs(sio_data, data); - if (err) - goto exit_remove; + superio_exit(sio_data->sioreg); /* Read fan clock dividers immediately */ nct6775_init_fan_common(dev, data); /* Register sysfs hooks */ - for (i = 0; i < data->pwm_num; i++) { - if (!(data->has_pwm & (1 << i))) - continue; - - err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]); - if (err) - goto exit_remove; - - if (data->REG_PWM[3]) { - err = device_create_file(dev, - &sda_pwm_max[i].dev_attr); - if (err) - goto exit_remove; - } - if (data->REG_PWM[4]) { - err = device_create_file(dev, - &sda_pwm_step[i].dev_attr); - if (err) - goto exit_remove; - } - if (data->REG_PWM[6]) { - err = device_create_file(dev, - &sda_weight_duty_base[i].dev_attr); - if (err) - goto exit_remove; - } - } - for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) { - struct sensor_device_attribute_2 *attr = - &sda_auto_pwm_arrays[i]; - - if (!(data->has_pwm & (1 << attr->nr))) - continue; - if (attr->index > data->auto_pwm_num) - continue; - err = device_create_file(dev, &attr->dev_attr); - if (err) - goto exit_remove; - } - - for (i = 0; i < data->in_num; i++) { - if (!(data->have_in & (1 << i))) - continue; - err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]); - if (err) - goto exit_remove; + group = nct6775_create_attr_group(dev, &nct6775_pwm_template_group, + data->pwm_num); + if (IS_ERR(group)) { + err = PTR_ERR(group); + goto exit_remove; } + data->group_pwm = group; - for (i = 0; i < 5; i++) { - if (data->has_fan & (1 << i)) { - err = device_create_file(dev, - &sda_fan_input[i].dev_attr); - if (err) - goto exit_remove; - if (data->ALARM_BITS[FAN_ALARM_BASE + i] >= 0) { - err = device_create_file(dev, - &sda_fan_alarm[i].dev_attr); - if (err) - goto exit_remove; - } - if (data->kind != nct6776 && - data->kind != nct6779) { - err = device_create_file(dev, - &sda_fan_div[i].dev_attr); - if (err) - goto exit_remove; - } - if (data->has_fan_min & (1 << i)) { - err = device_create_file(dev, - &sda_fan_min[i].dev_attr); - if (err) - goto exit_remove; - } - err = device_create_file(dev, - &sda_fan_pulses[i].dev_attr); - if (err) - goto exit_remove; - } + group = nct6775_create_attr_group(dev, &nct6775_in_template_group, + fls(data->have_in)); + if (IS_ERR(group)) { + err = PTR_ERR(group); + goto exit_remove; } + data->group_in = group; - for (i = 0; i < NUM_TEMP; i++) { - if (!(data->have_temp & (1 << i))) - continue; - err = device_create_file(dev, &sda_temp_input[i].dev_attr); - if (err) - goto exit_remove; - if (data->temp_label) { - err = device_create_file(dev, - &sda_temp_label[i].dev_attr); - if (err) - goto exit_remove; - } - if (data->reg_temp[1][i]) { - err = device_create_file(dev, - &sda_temp_max[i].dev_attr); - if (err) - goto exit_remove; - } - if (data->reg_temp[2][i]) { - err = device_create_file(dev, - &sda_temp_max_hyst[i].dev_attr); - if (err) - goto exit_remove; - } - if (data->reg_temp[3][i]) { - err = device_create_file(dev, - &sda_temp_crit[i].dev_attr); - if (err) - goto exit_remove; - } - if (find_temp_source(data, i, data->num_temp_alarms) >= 0) { - err = device_create_file(dev, - &sda_temp_alarm[i].dev_attr); - if (err) - goto exit_remove; - } - if (!(data->have_temp_fixed & (1 << i))) - continue; - err = device_create_file(dev, &sda_temp_type[i].dev_attr); - if (err) - goto exit_remove; - err = device_create_file(dev, &sda_temp_offset[i].dev_attr); - if (err) - goto exit_remove; + group = nct6775_create_attr_group(dev, &nct6775_fan_template_group, + fls(data->has_fan)); + if (IS_ERR(group)) { + err = PTR_ERR(group); + goto exit_remove; } + data->group_fan = group; - for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) { - if (data->ALARM_BITS[INTRUSION_ALARM_BASE + i] < 0) - continue; - err = device_create_file(dev, &sda_caseopen[i].dev_attr); - if (err) - goto exit_remove; + group = nct6775_create_attr_group(dev, &nct6775_temp_template_group, + fls(data->have_temp)); + if (IS_ERR(group)) { + err = PTR_ERR(group); + goto exit_remove; } + data->group_temp = group; - err = device_create_file(dev, &dev_attr_name); + err = sysfs_create_group(&dev->kobj, &nct6775_group_other); if (err) goto exit_remove; @@ -3988,11 +3931,10 @@ static int nct6775_remove(struct platform_device *pdev) static int nct6775_suspend(struct device *dev) { struct nct6775_data *data = nct6775_update_device(dev); - struct nct6775_sio_data *sio_data = dev->platform_data; mutex_lock(&data->update_lock); data->vbat = nct6775_read_value(data, data->REG_VBAT); - if (sio_data->kind == nct6775) { + if (data->kind == nct6775) { data->fandiv1 = nct6775_read_value(data, NCT6775_REG_FANDIV1); data->fandiv2 = nct6775_read_value(data, NCT6775_REG_FANDIV2); } @@ -4004,7 +3946,6 @@ static int nct6775_suspend(struct device *dev) static int nct6775_resume(struct device *dev) { struct nct6775_data *data = dev_get_drvdata(dev); - struct nct6775_sio_data *sio_data = dev->platform_data; int i, j; mutex_lock(&data->update_lock); @@ -4041,7 +3982,7 @@ static int nct6775_resume(struct device *dev) /* Restore other settings */ nct6775_write_value(data, data->REG_VBAT, data->vbat); - if (sio_data->kind == nct6775) { + if (data->kind == nct6775) { nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1); nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2); } @@ -4056,6 +3997,8 @@ static int nct6775_resume(struct device *dev) static const struct dev_pm_ops nct6775_dev_pm_ops = { .suspend = nct6775_suspend, .resume = nct6775_resume, + .freeze = nct6775_suspend, + .restore = nct6775_resume, }; #define NCT6775_DEV_PM_OPS (&nct6775_dev_pm_ops) @@ -4074,17 +4017,19 @@ static struct platform_driver nct6775_driver = { }; static const char * const nct6775_sio_names[] __initconst = { + "NCT6106D", "NCT6775F", "NCT6776D/F", "NCT6779D", + "NCT6791D", }; /* nct6775_find() looks for a '627 in the Super-I/O config space */ -static int __init nct6775_find(int sioaddr, unsigned short *addr, - struct nct6775_sio_data *sio_data) +static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data) { u16 val; int err; + int addr; err = superio_enter(sioaddr); if (err) @@ -4096,6 +4041,9 @@ static int __init nct6775_find(int sioaddr, unsigned short *addr, val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8) | superio_inb(sioaddr, SIO_REG_DEVID + 1); switch (val & SIO_ID_MASK) { + case SIO_NCT6106_ID: + sio_data->kind = nct6106; + break; case SIO_NCT6775_ID: sio_data->kind = nct6775; break; @@ -4105,6 +4053,9 @@ static int __init nct6775_find(int sioaddr, unsigned short *addr, case SIO_NCT6779_ID: sio_data->kind = nct6779; break; + case SIO_NCT6791_ID: + sio_data->kind = nct6791; + break; default: if (val != 0xffff) pr_debug("unsupported chip ID: 0x%04x\n", val); @@ -4116,8 +4067,8 @@ static int __init nct6775_find(int sioaddr, unsigned short *addr, superio_select(sioaddr, NCT6775_LD_HWM); val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8) | superio_inb(sioaddr, SIO_REG_ADDR + 1); - *addr = val & IOREGION_ALIGNMENT; - if (*addr == 0) { + addr = val & IOREGION_ALIGNMENT; + if (addr == 0) { pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n"); superio_exit(sioaddr); return -ENODEV; @@ -4129,13 +4080,22 @@ static int __init nct6775_find(int sioaddr, unsigned short *addr, pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n"); superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01); } + if (sio_data->kind == nct6791) { + val = superio_inb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE); + if (val & 0x10) { + pr_info("Enabling hardware monitor logical device mappings.\n"); + superio_outb(sioaddr, + NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE, + val & ~0x10); + } + } superio_exit(sioaddr); - pr_info("Found %s or compatible chip at %#x\n", - nct6775_sio_names[sio_data->kind], *addr); + pr_info("Found %s or compatible chip at %#x:%#x\n", + nct6775_sio_names[sio_data->kind], sioaddr, addr); sio_data->sioreg = sioaddr; - return 0; + return addr; } /* @@ -4144,14 +4104,20 @@ static int __init nct6775_find(int sioaddr, unsigned short *addr, * track of the nct6775 driver. But since we platform_device_alloc(), we * must keep track of the device */ -static struct platform_device *pdev; +static struct platform_device *pdev[2]; static int __init sensors_nct6775_init(void) { - int err; - unsigned short address; + int i, err; + bool found = false; + int address; struct resource res; struct nct6775_sio_data sio_data; + int sioaddr[2] = { 0x2e, 0x4e }; + + err = platform_driver_register(&nct6775_driver); + if (err) + return err; /* * initialize sio_data->kind and sio_data->sioreg. @@ -4160,64 +4126,71 @@ static int __init sensors_nct6775_init(void) * driver will probe 0x2e and 0x4e and auto-detect the presence of a * nct6775 hardware monitor, and call probe() */ - if (nct6775_find(0x2e, &address, &sio_data) && - nct6775_find(0x4e, &address, &sio_data)) - return -ENODEV; - - err = platform_driver_register(&nct6775_driver); - if (err) - goto exit; + for (i = 0; i < ARRAY_SIZE(pdev); i++) { + address = nct6775_find(sioaddr[i], &sio_data); + if (address <= 0) + continue; - pdev = platform_device_alloc(DRVNAME, address); - if (!pdev) { - err = -ENOMEM; - pr_err("Device allocation failed\n"); - goto exit_unregister; - } + found = true; - err = platform_device_add_data(pdev, &sio_data, - sizeof(struct nct6775_sio_data)); - if (err) { - pr_err("Platform data allocation failed\n"); - goto exit_device_put; - } + pdev[i] = platform_device_alloc(DRVNAME, address); + if (!pdev[i]) { + err = -ENOMEM; + goto exit_device_put; + } - memset(&res, 0, sizeof(res)); - res.name = DRVNAME; - res.start = address + IOREGION_OFFSET; - res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1; - res.flags = IORESOURCE_IO; + err = platform_device_add_data(pdev[i], &sio_data, + sizeof(struct nct6775_sio_data)); + if (err) + goto exit_device_put; + + memset(&res, 0, sizeof(res)); + res.name = DRVNAME; + res.start = address + IOREGION_OFFSET; + res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1; + res.flags = IORESOURCE_IO; + + err = acpi_check_resource_conflict(&res); + if (err) { + platform_device_put(pdev[i]); + pdev[i] = NULL; + continue; + } - err = acpi_check_resource_conflict(&res); - if (err) - goto exit_device_put; + err = platform_device_add_resources(pdev[i], &res, 1); + if (err) + goto exit_device_put; - err = platform_device_add_resources(pdev, &res, 1); - if (err) { - pr_err("Device resource addition failed (%d)\n", err); - goto exit_device_put; + /* platform_device_add calls probe() */ + err = platform_device_add(pdev[i]); + if (err) + goto exit_device_put; } - - /* platform_device_add calls probe() */ - err = platform_device_add(pdev); - if (err) { - pr_err("Device addition failed (%d)\n", err); - goto exit_device_put; + if (!found) { + err = -ENODEV; + goto exit_unregister; } return 0; exit_device_put: - platform_device_put(pdev); + for (i = 0; i < ARRAY_SIZE(pdev); i++) { + if (pdev[i]) + platform_device_put(pdev[i]); + } exit_unregister: platform_driver_unregister(&nct6775_driver); -exit: return err; } static void __exit sensors_nct6775_exit(void) { - platform_device_unregister(pdev); + int i; + + for (i = 0; i < ARRAY_SIZE(pdev); i++) { + if (pdev[i]) + platform_device_unregister(pdev[i]); + } platform_driver_unregister(&nct6775_driver); } diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index 830a842d796a..8c23203915af 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -424,7 +424,7 @@ static int ntc_thermistor_probe(struct platform_device *pdev) if (IS_ERR(pdata)) return PTR_ERR(pdata); else if (pdata == NULL) - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (!pdata) { dev_err(&pdev->dev, "No platform init data supplied.\n"); diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c index ea606860d2b2..6e6ea4437bb6 100644 --- a/drivers/hwmon/pc87427.c +++ b/drivers/hwmon/pc87427.c @@ -983,7 +983,7 @@ static int pc87427_request_regions(struct platform_device *pdev, static void pc87427_init_device(struct device *dev) { - struct pc87427_sio_data *sio_data = dev->platform_data; + struct pc87427_sio_data *sio_data = dev_get_platdata(dev); struct pc87427_data *data = dev_get_drvdata(dev); int i; u8 reg; @@ -1075,7 +1075,7 @@ static void pc87427_remove_files(struct device *dev) static int pc87427_probe(struct platform_device *pdev) { - struct pc87427_sio_data *sio_data = pdev->dev.platform_data; + struct pc87427_sio_data *sio_data = dev_get_platdata(&pdev->dev); struct pc87427_data *data; int i, err, res_count; diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index 9add60920ac0..9319fcf142d9 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -1726,7 +1726,7 @@ int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id, struct pmbus_driver_info *info) { struct device *dev = &client->dev; - const struct pmbus_platform_data *pdata = dev->platform_data; + const struct pmbus_platform_data *pdata = dev_get_platdata(dev); struct pmbus_data *data; int ret; diff --git a/drivers/hwmon/s3c-hwmon.c b/drivers/hwmon/s3c-hwmon.c index a9f7e804f1e4..73bd64e8c30a 100644 --- a/drivers/hwmon/s3c-hwmon.c +++ b/drivers/hwmon/s3c-hwmon.c @@ -165,7 +165,7 @@ static ssize_t s3c_hwmon_ch_show(struct device *dev, { struct sensor_device_attribute *sen_attr = to_sensor_dev_attr(attr); struct s3c_hwmon *hwmon = platform_get_drvdata(to_platform_device(dev)); - struct s3c_hwmon_pdata *pdata = dev->platform_data; + struct s3c_hwmon_pdata *pdata = dev_get_platdata(dev); struct s3c_hwmon_chcfg *cfg; int ret; @@ -194,7 +194,7 @@ static ssize_t s3c_hwmon_label_show(struct device *dev, char *buf) { struct sensor_device_attribute *sen_attr = to_sensor_dev_attr(attr); - struct s3c_hwmon_pdata *pdata = dev->platform_data; + struct s3c_hwmon_pdata *pdata = dev_get_platdata(dev); struct s3c_hwmon_chcfg *cfg; cfg = pdata->in[sen_attr->index]; @@ -274,7 +274,7 @@ static void s3c_hwmon_remove_attr(struct device *dev, */ static int s3c_hwmon_probe(struct platform_device *dev) { - struct s3c_hwmon_pdata *pdata = dev->dev.platform_data; + struct s3c_hwmon_pdata *pdata = dev_get_platdata(&dev->dev); struct s3c_hwmon *hwmon; int ret = 0; int i; diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c index 2507f902fb7a..97cd45a8432c 100644 --- a/drivers/hwmon/sht15.c +++ b/drivers/hwmon/sht15.c @@ -940,11 +940,11 @@ static int sht15_probe(struct platform_device *pdev) data->dev = &pdev->dev; init_waitqueue_head(&data->wait_queue); - if (pdev->dev.platform_data == NULL) { + if (dev_get_platdata(&pdev->dev) == NULL) { dev_err(&pdev->dev, "no platform data supplied\n"); return -EINVAL; } - data->pdata = pdev->dev.platform_data; + data->pdata = dev_get_platdata(&pdev->dev); data->supply_uv = data->pdata->supply_mv * 1000; if (data->pdata->checksum) data->checksumming = true; @@ -957,7 +957,7 @@ static int sht15_probe(struct platform_device *pdev) * If a regulator is available, * query what the supply voltage actually is! */ - data->reg = devm_regulator_get(data->dev, "vcc"); + data->reg = devm_regulator_get_optional(data->dev, "vcc"); if (!IS_ERR(data->reg)) { int voltage; diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 6d8255ccf07a..05cb814539cb 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -668,7 +668,7 @@ static void smsc47m1_remove_files(struct device *dev) static int __init smsc47m1_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct smsc47m1_sio_data *sio_data = dev->platform_data; + struct smsc47m1_sio_data *sio_data = dev_get_platdata(dev); struct smsc47m1_data *data; struct resource *res; int err; @@ -940,7 +940,7 @@ exit_device: static void __exit sm_smsc47m1_exit(void) { platform_driver_unregister(&smsc47m1_driver); - smsc47m1_restore(pdev->dev.platform_data); + smsc47m1_restore(dev_get_platdata(&pdev->dev)); platform_device_unregister(pdev); } diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 004801e6fbb9..23ff210513d3 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -673,7 +673,7 @@ static void w83627ehf_write_fan_div(struct w83627ehf_data *data, int nr) static void w83627ehf_write_fan_div_common(struct device *dev, struct w83627ehf_data *data, int nr) { - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); if (sio_data->kind == nct6776) ; /* no dividers, do nothing */ @@ -724,7 +724,7 @@ static void w83627ehf_update_fan_div(struct w83627ehf_data *data) static void w83627ehf_update_fan_div_common(struct device *dev, struct w83627ehf_data *data) { - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); if (sio_data->kind == nct6776) ; /* no dividers, do nothing */ @@ -781,7 +781,7 @@ static void w83627ehf_update_pwm(struct w83627ehf_data *data) static void w83627ehf_update_pwm_common(struct device *dev, struct w83627ehf_data *data) { - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); if (sio_data->kind == nct6775 || sio_data->kind == nct6776) nct6775_update_pwm(data); @@ -792,7 +792,7 @@ static void w83627ehf_update_pwm_common(struct device *dev, static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) { struct w83627ehf_data *data = dev_get_drvdata(dev); - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); int i; @@ -1392,7 +1392,7 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr, { struct w83627ehf_data *data = dev_get_drvdata(dev); struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); int nr = sensor_attr->index; unsigned long val; int err; @@ -1448,7 +1448,7 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct w83627ehf_data *data = dev_get_drvdata(dev); - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; unsigned long val; @@ -1527,7 +1527,7 @@ store_tolerance(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct w83627ehf_data *data = dev_get_drvdata(dev); - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; u16 reg; @@ -2065,7 +2065,7 @@ w83627ehf_check_fan_inputs(const struct w83627ehf_sio_data *sio_data, static int w83627ehf_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); struct w83627ehf_data *data; struct resource *res; u8 en_vrm10; @@ -2618,7 +2618,7 @@ static int w83627ehf_remove(struct platform_device *pdev) static int w83627ehf_suspend(struct device *dev) { struct w83627ehf_data *data = w83627ehf_update_device(dev); - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); mutex_lock(&data->update_lock); data->vbat = w83627ehf_read_value(data, W83627EHF_REG_VBAT); @@ -2634,7 +2634,7 @@ static int w83627ehf_suspend(struct device *dev) static int w83627ehf_resume(struct device *dev) { struct w83627ehf_data *data = dev_get_drvdata(dev); - struct w83627ehf_sio_data *sio_data = dev->platform_data; + struct w83627ehf_sio_data *sio_data = dev_get_platdata(dev); int i; mutex_lock(&data->update_lock); @@ -2694,6 +2694,8 @@ static int w83627ehf_resume(struct device *dev) static const struct dev_pm_ops w83627ehf_dev_pm_ops = { .suspend = w83627ehf_suspend, .resume = w83627ehf_resume, + .freeze = w83627ehf_suspend, + .restore = w83627ehf_resume, }; #define W83627EHF_DEV_PM_OPS (&w83627ehf_dev_pm_ops) diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 3b9ef2d23452..cb9cd326ecb5 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -1415,7 +1415,7 @@ static const struct attribute_group w83627hf_group_opt = { static int w83627hf_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct w83627hf_sio_data *sio_data = dev->platform_data; + struct w83627hf_sio_data *sio_data = dev_get_platdata(dev); struct w83627hf_data *data; struct resource *res; int err, i; @@ -1636,7 +1636,7 @@ static int w83627hf_read_value(struct w83627hf_data *data, u16 reg) static int w83627thf_read_gpio5(struct platform_device *pdev) { - struct w83627hf_sio_data *sio_data = pdev->dev.platform_data; + struct w83627hf_sio_data *sio_data = dev_get_platdata(&pdev->dev); int res = 0xff, sel; superio_enter(sio_data); @@ -1669,7 +1669,7 @@ exit: static int w83687thf_read_vid(struct platform_device *pdev) { - struct w83627hf_sio_data *sio_data = pdev->dev.platform_data; + struct w83627hf_sio_data *sio_data = dev_get_platdata(&pdev->dev); int res = 0xff; superio_enter(sio_data); diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c index 5f4749e60b04..c1cd5698b8ae 100644 --- a/drivers/iio/light/adjd_s311.c +++ b/drivers/iio/light/adjd_s311.c @@ -232,7 +232,8 @@ static int adjd_s311_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: - ret = adjd_s311_read_data(indio_dev, chan->address, val); + ret = adjd_s311_read_data(indio_dev, + ADJD_S311_DATA_REG(chan->address), val); if (ret < 0) return ret; return IIO_VAL_INT; diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index fa061d46527f..75e3b102ce45 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -167,6 +167,7 @@ static const struct xpad_device { { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, { 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 }, { 0x1689, 0xfd00, "Razer Onza Tournament Edition", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 }, + { 0x1689, 0xfd01, "Razer Onza Classic Edition", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 }, { 0x1bad, 0x0002, "Harmonix Rock Band Guitar", 0, XTYPE_XBOX360 }, { 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 }, { 0x1bad, 0xf016, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 }, diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 57b2637e153a..8551dcaf24db 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -672,6 +672,7 @@ static int elantech_packet_check_v2(struct psmouse *psmouse) */ static int elantech_packet_check_v3(struct psmouse *psmouse) { + struct elantech_data *etd = psmouse->private; const u8 debounce_packet[] = { 0xc4, 0xff, 0xff, 0x02, 0xff, 0xff }; unsigned char *packet = psmouse->packet; @@ -682,19 +683,48 @@ static int elantech_packet_check_v3(struct psmouse *psmouse) if (!memcmp(packet, debounce_packet, sizeof(debounce_packet))) return PACKET_DEBOUNCE; - if ((packet[0] & 0x0c) == 0x04 && (packet[3] & 0xcf) == 0x02) - return PACKET_V3_HEAD; + /* + * If the hardware flag 'crc_enabled' is set the packets have + * different signatures. + */ + if (etd->crc_enabled) { + if ((packet[3] & 0x09) == 0x08) + return PACKET_V3_HEAD; + + if ((packet[3] & 0x09) == 0x09) + return PACKET_V3_TAIL; + } else { + if ((packet[0] & 0x0c) == 0x04 && (packet[3] & 0xcf) == 0x02) + return PACKET_V3_HEAD; - if ((packet[0] & 0x0c) == 0x0c && (packet[3] & 0xce) == 0x0c) - return PACKET_V3_TAIL; + if ((packet[0] & 0x0c) == 0x0c && (packet[3] & 0xce) == 0x0c) + return PACKET_V3_TAIL; + } return PACKET_UNKNOWN; } static int elantech_packet_check_v4(struct psmouse *psmouse) { + struct elantech_data *etd = psmouse->private; unsigned char *packet = psmouse->packet; unsigned char packet_type = packet[3] & 0x03; + bool sanity_check; + + /* + * Sanity check based on the constant bits of a packet. + * The constant bits change depending on the value of + * the hardware flag 'crc_enabled' but are the same for + * every packet, regardless of the type. + */ + if (etd->crc_enabled) + sanity_check = ((packet[3] & 0x08) == 0x00); + else + sanity_check = ((packet[0] & 0x0c) == 0x04 && + (packet[3] & 0x1c) == 0x10); + + if (!sanity_check) + return PACKET_UNKNOWN; switch (packet_type) { case 0: @@ -1313,6 +1343,12 @@ static int elantech_set_properties(struct elantech_data *etd) etd->reports_pressure = true; } + /* + * The signatures of v3 and v4 packets change depending on the + * value of this hardware flag. + */ + etd->crc_enabled = ((etd->fw_version & 0x4000) == 0x4000); + return 0; } diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h index 46db3be45ac9..036a04abaef7 100644 --- a/drivers/input/mouse/elantech.h +++ b/drivers/input/mouse/elantech.h @@ -129,6 +129,7 @@ struct elantech_data { bool paritycheck; bool jumpy_cursor; bool reports_pressure; + bool crc_enabled; unsigned char hw_version; unsigned int fw_version; unsigned int single_finger_reports; diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig index 94c17c28d268..1e691a3a79cb 100644 --- a/drivers/input/serio/Kconfig +++ b/drivers/input/serio/Kconfig @@ -22,7 +22,8 @@ config SERIO_I8042 tristate "i8042 PC Keyboard controller" if EXPERT || !X86 default y depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \ - (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !S390 + (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !S390 && \ + !ARC help i8042 is the chip over which the standard AT keyboard and PS/2 mouse are connected to the computer. If you use these devices, diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 384fbcd0cee0..f3e91f0b57ae 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -2112,7 +2112,7 @@ static const struct wacom_features wacom_features_0xDA = { "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 }; -static struct wacom_features wacom_features_0xDB = +static const struct wacom_features wacom_features_0xDB = { "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN, 21648, 13700, 1023, 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 }; @@ -2127,6 +2127,12 @@ static const struct wacom_features wacom_features_0xDF = { "Wacom Bamboo 16FG 6x8", WACOM_PKGLEN_BBPEN, 21648, 13700, 1023, 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16 }; +static const struct wacom_features wacom_features_0x300 = + { "Wacom Bamboo One S", WACOM_PKGLEN_BBPEN, 14720, 9225, 1023, + 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; +static const struct wacom_features wacom_features_0x301 = + { "Wacom Bamboo One M", WACOM_PKGLEN_BBPEN, 21648, 13530, 1023, + 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x6004 = { "ISD-V4", WACOM_PKGLEN_GRAPHIRE, 12800, 8000, 255, 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; @@ -2253,6 +2259,8 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0x100) }, { USB_DEVICE_WACOM(0x101) }, { USB_DEVICE_WACOM(0x10D) }, + { USB_DEVICE_WACOM(0x300) }, + { USB_DEVICE_WACOM(0x301) }, { USB_DEVICE_WACOM(0x304) }, { USB_DEVICE_WACOM(0x4001) }, { USB_DEVICE_WACOM(0x47) }, diff --git a/drivers/irqchip/irq-sirfsoc.c b/drivers/irqchip/irq-sirfsoc.c index 69ea44ebcf61..4851afae38dc 100644 --- a/drivers/irqchip/irq-sirfsoc.c +++ b/drivers/irqchip/irq-sirfsoc.c @@ -23,7 +23,7 @@ #define SIRFSOC_INT_RISC_LEVEL1 0x0024 #define SIRFSOC_INIT_IRQ_ID 0x0038 -#define SIRFSOC_NUM_IRQS 128 +#define SIRFSOC_NUM_IRQS 64 static struct irq_domain *sirfsoc_irqdomain; @@ -32,15 +32,18 @@ sirfsoc_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num) { struct irq_chip_generic *gc; struct irq_chip_type *ct; + int ret; + unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN; - gc = irq_alloc_generic_chip("SIRFINTC", 1, irq_start, base, handle_level_irq); - ct = gc->chip_types; + ret = irq_alloc_domain_generic_chips(sirfsoc_irqdomain, num, 1, "irq_sirfsoc", + handle_level_irq, clr, 0, IRQ_GC_INIT_MASK_CACHE); + gc = irq_get_domain_generic_chip(sirfsoc_irqdomain, irq_start); + gc->reg_base = base; + ct = gc->chip_types; ct->chip.irq_mask = irq_gc_mask_clr_bit; ct->chip.irq_unmask = irq_gc_mask_set_bit; ct->regs.mask = SIRFSOC_INT_RISC_MASK0; - - irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST, 0); } static asmlinkage void __exception_irq_entry sirfsoc_handle_irq(struct pt_regs *regs) @@ -60,9 +63,8 @@ static int __init sirfsoc_irq_init(struct device_node *np, struct device_node *p if (!base) panic("unable to map intc cpu registers\n"); - /* using legacy because irqchip_generic does not work with linear */ - sirfsoc_irqdomain = irq_domain_add_legacy(np, SIRFSOC_NUM_IRQS, 0, 0, - &irq_domain_simple_ops, base); + sirfsoc_irqdomain = irq_domain_add_linear(np, SIRFSOC_NUM_IRQS, + &irq_generic_chip_ops, base); sirfsoc_alloc_gc(base, 0, 32); sirfsoc_alloc_gc(base + 4, 32, SIRFSOC_NUM_IRQS - 32); diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c index 22b720ec80cb..77025f5cb57d 100644 --- a/drivers/isdn/mISDN/dsp_core.c +++ b/drivers/isdn/mISDN/dsp_core.c @@ -288,8 +288,10 @@ dsp_control_req(struct dsp *dsp, struct mISDNhead *hh, struct sk_buff *skb) u8 *data; int len; - if (skb->len < sizeof(int)) + if (skb->len < sizeof(int)) { printk(KERN_ERR "%s: PH_CONTROL message too short\n", __func__); + return -EINVAL; + } cont = *((int *)skb->data); len = skb->len - sizeof(int); data = skb->data + sizeof(int); diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c index dc112a7137fe..4296155090b2 100644 --- a/drivers/md/dm-cache-policy-mq.c +++ b/drivers/md/dm-cache-policy-mq.c @@ -959,23 +959,21 @@ out: return r; } -static void remove_mapping(struct mq_policy *mq, dm_oblock_t oblock) +static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock) { - struct entry *e = hash_lookup(mq, oblock); + struct mq_policy *mq = to_mq_policy(p); + struct entry *e; + + mutex_lock(&mq->lock); + + e = hash_lookup(mq, oblock); BUG_ON(!e || !e->in_cache); del(mq, e); e->in_cache = false; push(mq, e); -} -static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock) -{ - struct mq_policy *mq = to_mq_policy(p); - - mutex_lock(&mq->lock); - remove_mapping(mq, oblock); mutex_unlock(&mq->lock); } diff --git a/drivers/misc/ics932s401.c b/drivers/misc/ics932s401.c index 00295367c06a..28f51e01fd2b 100644 --- a/drivers/misc/ics932s401.c +++ b/drivers/misc/ics932s401.c @@ -2,7 +2,7 @@ * A driver for the Integrated Circuits ICS932S401 * Copyright (C) 2008 IBM * - * Author: Darrick J. Wong <djwong@us.ibm.com> + * Author: Darrick J. Wong <darrick.wong@oracle.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -482,7 +482,7 @@ static int ics932s401_remove(struct i2c_client *client) module_i2c_driver(ics932s401_driver); -MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); MODULE_DESCRIPTION("ICS932S401 driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 49a5bca418bd..5d088551196b 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1313,7 +1313,7 @@ int mmc_regulator_get_supply(struct mmc_host *mmc) supply = devm_regulator_get(dev, "vmmc"); mmc->supply.vmmc = supply; - mmc->supply.vqmmc = devm_regulator_get(dev, "vqmmc"); + mmc->supply.vqmmc = devm_regulator_get_optional(dev, "vqmmc"); if (IS_ERR(supply)) return PTR_ERR(supply); diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index ee5f1676f14e..542407363dd2 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2231,7 +2231,7 @@ int dw_mci_probe(struct dw_mci *host) } } - host->vmmc = devm_regulator_get(host->dev, "vmmc"); + host->vmmc = devm_regulator_get_optional(host->dev, "vmmc"); if (IS_ERR(host->vmmc)) { ret = PTR_ERR(host->vmmc); if (ret == -EPROBE_DEFER) diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 2c5a91bb8ec3..1956a3df7cf3 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -83,7 +83,7 @@ struct pxamci_host { static inline void pxamci_init_ocr(struct pxamci_host *host) { #ifdef CONFIG_REGULATOR - host->vcc = regulator_get(mmc_dev(host->mmc), "vmmc"); + host->vcc = regulator_get_optional(mmc_dev(host->mmc), "vmmc"); if (IS_ERR(host->vcc)) host->vcc = NULL; diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index a78bd4f3aecc..dd2c083c434d 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2966,7 +2966,7 @@ int sdhci_add_host(struct sdhci_host *host) mmc->caps |= MMC_CAP_NEEDS_POLL; /* If vqmmc regulator and no 1.8V signalling, then there's no UHS */ - host->vqmmc = regulator_get(mmc_dev(mmc), "vqmmc"); + host->vqmmc = regulator_get_optional(mmc_dev(mmc), "vqmmc"); if (IS_ERR_OR_NULL(host->vqmmc)) { if (PTR_ERR(host->vqmmc) < 0) { pr_info("%s: no vqmmc regulator found\n", @@ -3042,7 +3042,7 @@ int sdhci_add_host(struct sdhci_host *host) ocr_avail = 0; - host->vmmc = regulator_get(mmc_dev(mmc), "vmmc"); + host->vmmc = regulator_get_optional(mmc_dev(mmc), "vmmc"); if (IS_ERR_OR_NULL(host->vmmc)) { if (PTR_ERR(host->vmmc) < 0) { pr_info("%s: no vmmc regulator found\n", diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index ce9b387b5a19..00b88cbfde25 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -1333,6 +1333,8 @@ enum { BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN, BNX2X_SP_RTNL_VFPF_STORM_RX_MODE, BNX2X_SP_RTNL_HYPERVISOR_VLAN, + BNX2X_SP_RTNL_TX_STOP, + BNX2X_SP_RTNL_TX_RESUME, }; struct bnx2x_prev_path_list { diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index f2d1ff10054b..0cc26110868d 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -53,6 +53,7 @@ static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) struct bnx2x_fp_stats *to_fp_stats = &bp->fp_stats[to]; int old_max_eth_txqs, new_max_eth_txqs; int old_txdata_index = 0, new_txdata_index = 0; + struct bnx2x_agg_info *old_tpa_info = to_fp->tpa_info; /* Copy the NAPI object as it has been already initialized */ from_fp->napi = to_fp->napi; @@ -61,6 +62,11 @@ static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) memcpy(to_fp, from_fp, sizeof(*to_fp)); to_fp->index = to; + /* Retain the tpa_info of the original `to' version as we don't want + * 2 FPs to contain the same tpa_info pointer. + */ + to_fp->tpa_info = old_tpa_info; + /* move sp_objs contents as well, as their indices match fp ones */ memcpy(to_sp_objs, from_sp_objs, sizeof(*to_sp_objs)); @@ -2956,8 +2962,9 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link) if (IS_PF(bp)) { if (CNIC_LOADED(bp)) bnx2x_free_mem_cnic(bp); - bnx2x_free_mem(bp); } + bnx2x_free_mem(bp); + bp->state = BNX2X_STATE_CLOSED; bp->cnic_loaded = false; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c index f9122f2d6b65..fcf2761d8828 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c @@ -30,10 +30,8 @@ #include "bnx2x_dcb.h" /* forward declarations of dcbx related functions */ -static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp); static void bnx2x_pfc_set_pfc(struct bnx2x *bp); static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp); -static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp); static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp, u32 *set_configuration_ets_pg, u32 *pri_pg_tbl); @@ -425,30 +423,52 @@ static void bnx2x_pfc_set_pfc(struct bnx2x *bp) bnx2x_pfc_clear(bp); } -static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp) +int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp) { struct bnx2x_func_state_params func_params = {NULL}; + int rc; func_params.f_obj = &bp->func_obj; func_params.cmd = BNX2X_F_CMD_TX_STOP; + __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); + __set_bit(RAMROD_RETRY, &func_params.ramrod_flags); + DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n"); - return bnx2x_func_state_change(bp, &func_params); + + rc = bnx2x_func_state_change(bp, &func_params); + if (rc) { + BNX2X_ERR("Unable to hold traffic for HW configuration\n"); + bnx2x_panic(); + } + + return rc; } -static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp) +int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp) { struct bnx2x_func_state_params func_params = {NULL}; struct bnx2x_func_tx_start_params *tx_params = &func_params.params.tx_start; + int rc; func_params.f_obj = &bp->func_obj; func_params.cmd = BNX2X_F_CMD_TX_START; + __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); + __set_bit(RAMROD_RETRY, &func_params.ramrod_flags); + bnx2x_dcbx_fw_struct(bp, tx_params); DP(BNX2X_MSG_DCB, "START TRAFFIC\n"); - return bnx2x_func_state_change(bp, &func_params); + + rc = bnx2x_func_state_change(bp, &func_params); + if (rc) { + BNX2X_ERR("Unable to resume traffic after HW configuration\n"); + bnx2x_panic(); + } + + return rc; } static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp) @@ -744,7 +764,9 @@ void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state) if (IS_MF(bp)) bnx2x_link_sync_notify(bp); - bnx2x_dcbx_stop_hw_tx(bp); + set_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state); + + schedule_delayed_work(&bp->sp_rtnl_task, 0); return; } @@ -757,7 +779,9 @@ void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state) /* ets may affect cmng configuration: reinit it in hw */ bnx2x_set_local_cmng(bp); - bnx2x_dcbx_resume_hw_tx(bp); + set_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state); + + schedule_delayed_work(&bp->sp_rtnl_task, 0); return; case BNX2X_DCBX_STATE_TX_RELEASED: @@ -2367,21 +2391,24 @@ static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid, case DCB_FEATCFG_ATTR_PG: if (bp->dcbx_local_feat.ets.enabled) *flags |= DCB_FEATCFG_ENABLE; - if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR) + if (bp->dcbx_error & (DCBX_LOCAL_ETS_ERROR | + DCBX_REMOTE_MIB_ERROR)) *flags |= DCB_FEATCFG_ERROR; break; case DCB_FEATCFG_ATTR_PFC: if (bp->dcbx_local_feat.pfc.enabled) *flags |= DCB_FEATCFG_ENABLE; if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR | - DCBX_LOCAL_PFC_MISMATCH)) + DCBX_LOCAL_PFC_MISMATCH | + DCBX_REMOTE_MIB_ERROR)) *flags |= DCB_FEATCFG_ERROR; break; case DCB_FEATCFG_ATTR_APP: if (bp->dcbx_local_feat.app.enabled) *flags |= DCB_FEATCFG_ENABLE; if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR | - DCBX_LOCAL_APP_MISMATCH)) + DCBX_LOCAL_APP_MISMATCH | + DCBX_REMOTE_MIB_ERROR)) *flags |= DCB_FEATCFG_ERROR; break; default: diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h index 125bd1b6586f..804b8f64463e 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h @@ -199,4 +199,7 @@ extern const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops; int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall); #endif /* BCM_DCBNL */ +int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp); +int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp); + #endif /* BNX2X_DCB_H */ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 955d6cfd9cb7..1627a4e09c32 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -2261,6 +2261,23 @@ static void bnx2x_set_requested_fc(struct bnx2x *bp) bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_BOTH; } +static void bnx2x_init_dropless_fc(struct bnx2x *bp) +{ + u32 pause_enabled = 0; + + if (!CHIP_IS_E1(bp) && bp->dropless_fc && bp->link_vars.link_up) { + if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) + pause_enabled = 1; + + REG_WR(bp, BAR_USTRORM_INTMEM + + USTORM_ETH_PAUSE_ENABLED_OFFSET(BP_PORT(bp)), + pause_enabled); + } + + DP(NETIF_MSG_IFUP | NETIF_MSG_LINK, "dropless_fc is %s\n", + pause_enabled ? "enabled" : "disabled"); +} + int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode) { int rc, cfx_idx = bnx2x_get_link_cfg_idx(bp); @@ -2294,6 +2311,8 @@ int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode) bnx2x_release_phy_lock(bp); + bnx2x_init_dropless_fc(bp); + bnx2x_calc_fc_adv(bp); if (bp->link_vars.link_up) { @@ -2315,6 +2334,8 @@ void bnx2x_link_set(struct bnx2x *bp) bnx2x_phy_init(&bp->link_params, &bp->link_vars); bnx2x_release_phy_lock(bp); + bnx2x_init_dropless_fc(bp); + bnx2x_calc_fc_adv(bp); } else BNX2X_ERR("Bootcode is missing - can not set link\n"); @@ -2556,20 +2577,9 @@ static void bnx2x_link_attn(struct bnx2x *bp) bnx2x_link_update(&bp->link_params, &bp->link_vars); - if (bp->link_vars.link_up) { + bnx2x_init_dropless_fc(bp); - /* dropless flow control */ - if (!CHIP_IS_E1(bp) && bp->dropless_fc) { - int port = BP_PORT(bp); - u32 pause_enabled = 0; - - if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) - pause_enabled = 1; - - REG_WR(bp, BAR_USTRORM_INTMEM + - USTORM_ETH_PAUSE_ENABLED_OFFSET(port), - pause_enabled); - } + if (bp->link_vars.link_up) { if (bp->link_vars.mac_type != MAC_TYPE_EMAC) { struct host_port_stats *pstats; @@ -7845,12 +7855,15 @@ void bnx2x_free_mem(struct bnx2x *bp) { int i; - BNX2X_PCI_FREE(bp->def_status_blk, bp->def_status_blk_mapping, - sizeof(struct host_sp_status_block)); - BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping, bp->fw_stats_data_sz + bp->fw_stats_req_sz); + if (IS_VF(bp)) + return; + + BNX2X_PCI_FREE(bp->def_status_blk, bp->def_status_blk_mapping, + sizeof(struct host_sp_status_block)); + BNX2X_PCI_FREE(bp->slowpath, bp->slowpath_mapping, sizeof(struct bnx2x_slowpath)); @@ -9645,6 +9658,12 @@ sp_rtnl_not_reset: &bp->sp_rtnl_state)) bnx2x_pf_set_vfs_vlan(bp); + if (test_and_clear_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state)) + bnx2x_dcbx_stop_hw_tx(bp); + + if (test_and_clear_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state)) + bnx2x_dcbx_resume_hw_tx(bp); + /* work which needs rtnl lock not-taken (as it takes the lock itself and * can be called from other contexts as well) */ @@ -11147,6 +11166,9 @@ static bool bnx2x_get_dropless_info(struct bnx2x *bp) int tmp; u32 cfg; + if (IS_VF(bp)) + return 0; + if (IS_MF(bp) && !CHIP_IS_E1x(bp)) { /* Take function: tmp = func */ tmp = BP_ABS_FUNC(bp); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c index 44104fb27947..e8706e19f96f 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c @@ -522,23 +522,6 @@ static int bnx2x_vfop_set_user_req(struct bnx2x *bp, return 0; } -static int -bnx2x_vfop_config_vlan0(struct bnx2x *bp, - struct bnx2x_vlan_mac_ramrod_params *vlan_mac, - bool add) -{ - int rc; - - vlan_mac->user_req.cmd = add ? BNX2X_VLAN_MAC_ADD : - BNX2X_VLAN_MAC_DEL; - vlan_mac->user_req.u.vlan.vlan = 0; - - rc = bnx2x_config_vlan_mac(bp, vlan_mac); - if (rc == -EEXIST) - rc = 0; - return rc; -} - static int bnx2x_vfop_config_list(struct bnx2x *bp, struct bnx2x_vfop_filters *filters, struct bnx2x_vlan_mac_ramrod_params *vlan_mac) @@ -643,30 +626,14 @@ static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf) case BNX2X_VFOP_VLAN_CONFIG_LIST: /* next state */ - vfop->state = BNX2X_VFOP_VLAN_CONFIG_LIST_0; - - /* remove vlan0 - could be no-op */ - vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, false); - if (vfop->rc) - goto op_err; + vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; - /* Do vlan list config. if this operation fails we try to - * restore vlan0 to keep the queue is working order - */ + /* do list config */ vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac); if (!vfop->rc) { set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags); vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac); } - bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); /* fall-through */ - - case BNX2X_VFOP_VLAN_CONFIG_LIST_0: - /* next state */ - vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; - - if (list_empty(&obj->head)) - /* add vlan0 */ - vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, true); bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); default: @@ -1747,11 +1714,8 @@ void bnx2x_iov_init_dq(struct bnx2x *bp) void bnx2x_iov_init_dmae(struct bnx2x *bp) { - DP(BNX2X_MSG_IOV, "SRIOV is %s\n", IS_SRIOV(bp) ? "ON" : "OFF"); - if (!IS_SRIOV(bp)) - return; - - REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0); + if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV)) + REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0); } static int bnx2x_vf_bus(struct bnx2x *bp, int vfid) @@ -2822,6 +2786,18 @@ int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map) return 0; } +struct set_vf_state_cookie { + struct bnx2x_virtf *vf; + u8 state; +}; + +void bnx2x_set_vf_state(void *cookie) +{ + struct set_vf_state_cookie *p = (struct set_vf_state_cookie *)cookie; + + p->vf->state = p->state; +} + /* VFOP close (teardown the queues, delete mcasts and close HW) */ static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf) { @@ -2872,7 +2848,19 @@ static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf) op_err: BNX2X_ERR("VF[%d] CLOSE error: rc %d\n", vf->abs_vfid, vfop->rc); op_done: - vf->state = VF_ACQUIRED; + + /* need to make sure there are no outstanding stats ramrods which may + * cause the device to access the VF's stats buffer which it will free + * as soon as we return from the close flow. + */ + { + struct set_vf_state_cookie cookie; + + cookie.vf = vf; + cookie.state = VF_ACQUIRED; + bnx2x_stats_safe_exec(bp, bnx2x_set_vf_state, &cookie); + } + DP(BNX2X_MSG_IOV, "set state to acquired\n"); bnx2x_vfop_end(bp, vf, vfop); } @@ -3084,8 +3072,9 @@ void bnx2x_disable_sriov(struct bnx2x *bp) pci_disable_sriov(bp->pdev); } -static int bnx2x_vf_ndo_sanity(struct bnx2x *bp, int vfidx, - struct bnx2x_virtf *vf) +static int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx, + struct bnx2x_virtf **vf, + struct pf_vf_bulletin_content **bulletin) { if (bp->state != BNX2X_STATE_OPEN) { BNX2X_ERR("vf ndo called though PF is down\n"); @@ -3103,12 +3092,22 @@ static int bnx2x_vf_ndo_sanity(struct bnx2x *bp, int vfidx, return -EINVAL; } - if (!vf) { + /* init members */ + *vf = BP_VF(bp, vfidx); + *bulletin = BP_VF_BULLETIN(bp, vfidx); + + if (!*vf) { BNX2X_ERR("vf ndo called but vf was null. vfidx was %d\n", vfidx); return -EINVAL; } + if (!*bulletin) { + BNX2X_ERR("vf ndo called but Bulletin Board struct is null. vfidx was %d\n", + vfidx); + return -EINVAL; + } + return 0; } @@ -3116,17 +3115,19 @@ int bnx2x_get_vf_config(struct net_device *dev, int vfidx, struct ifla_vf_info *ivi) { struct bnx2x *bp = netdev_priv(dev); - struct bnx2x_virtf *vf = BP_VF(bp, vfidx); - struct bnx2x_vlan_mac_obj *mac_obj = &bnx2x_vfq(vf, 0, mac_obj); - struct bnx2x_vlan_mac_obj *vlan_obj = &bnx2x_vfq(vf, 0, vlan_obj); - struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx); + struct bnx2x_virtf *vf = NULL; + struct pf_vf_bulletin_content *bulletin = NULL; + struct bnx2x_vlan_mac_obj *mac_obj; + struct bnx2x_vlan_mac_obj *vlan_obj; int rc; - /* sanity */ - rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf); + /* sanity and init */ + rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin); if (rc) return rc; - if (!mac_obj || !vlan_obj || !bulletin) { + mac_obj = &bnx2x_vfq(vf, 0, mac_obj); + vlan_obj = &bnx2x_vfq(vf, 0, vlan_obj); + if (!mac_obj || !vlan_obj) { BNX2X_ERR("VF partially initialized\n"); return -EINVAL; } @@ -3183,11 +3184,11 @@ int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac) { struct bnx2x *bp = netdev_priv(dev); int rc, q_logical_state; - struct bnx2x_virtf *vf = BP_VF(bp, vfidx); - struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx); + struct bnx2x_virtf *vf = NULL; + struct pf_vf_bulletin_content *bulletin = NULL; - /* sanity */ - rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf); + /* sanity and init */ + rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin); if (rc) return rc; if (!is_valid_ether_addr(mac)) { @@ -3249,11 +3250,11 @@ int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos) { struct bnx2x *bp = netdev_priv(dev); int rc, q_logical_state; - struct bnx2x_virtf *vf = BP_VF(bp, vfidx); - struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx); + struct bnx2x_virtf *vf = NULL; + struct pf_vf_bulletin_content *bulletin = NULL; - /* sanity */ - rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf); + /* sanity and init */ + rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin); if (rc) return rc; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c index d63d1327b051..86436c77af03 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c @@ -522,20 +522,16 @@ static void bnx2x_func_stats_init(struct bnx2x *bp) /* should be called under stats_sema */ static void __bnx2x_stats_start(struct bnx2x *bp) { - /* vfs travel through here as part of the statistics FSM, but no action - * is required - */ - if (IS_VF(bp)) - return; - - if (bp->port.pmf) - bnx2x_port_stats_init(bp); + if (IS_PF(bp)) { + if (bp->port.pmf) + bnx2x_port_stats_init(bp); - else if (bp->func_stx) - bnx2x_func_stats_init(bp); + else if (bp->func_stx) + bnx2x_func_stats_init(bp); - bnx2x_hw_stats_post(bp); - bnx2x_storm_stats_post(bp); + bnx2x_hw_stats_post(bp); + bnx2x_storm_stats_post(bp); + } bp->stats_started = true; } @@ -1997,3 +1993,14 @@ void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats, estats->mac_discard); } } + +void bnx2x_stats_safe_exec(struct bnx2x *bp, + void (func_to_exec)(void *cookie), + void *cookie){ + if (down_timeout(&bp->stats_sema, HZ/10)) + BNX2X_ERR("Unable to acquire stats lock\n"); + bnx2x_stats_comp(bp); + func_to_exec(cookie); + __bnx2x_stats_start(bp); + up(&bp->stats_sema); +} diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h index 853824d258e8..f35845006cdd 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h @@ -539,6 +539,9 @@ struct bnx2x; void bnx2x_memset_stats(struct bnx2x *bp); void bnx2x_stats_init(struct bnx2x *bp); void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event); +void bnx2x_stats_safe_exec(struct bnx2x *bp, + void (func_to_exec)(void *cookie), + void *cookie); /** * bnx2x_save_statistics - save statistics when unloading. diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 181edb522450..3d91a5ec61a4 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -2563,8 +2563,8 @@ static int be_close(struct net_device *netdev) /* Wait for all pending tx completions to arrive so that * all tx skbs are freed. */ - be_tx_compl_clean(adapter); netif_tx_disable(netdev); + be_tx_compl_clean(adapter); be_rx_qs_destroy(adapter); @@ -4373,6 +4373,10 @@ static int be_resume(struct pci_dev *pdev) pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); + status = be_fw_wait_ready(adapter); + if (status) + return status; + /* tell fw we're ready to fire cmds */ status = be_cmd_fw_init(adapter); if (status) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 77ea0db0bbfc..c610a2716be4 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -971,8 +971,7 @@ fec_enet_rx(struct net_device *ndev, int budget) htons(ETH_P_8021Q), vlan_tag); - if (!skb_defer_rx_timestamp(skb)) - napi_gro_receive(&fep->napi, skb); + napi_gro_receive(&fep->napi, skb); } bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, data, diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c index 7fbe6abf6054..23de82a9da82 100644 --- a/drivers/net/ethernet/jme.c +++ b/drivers/net/ethernet/jme.c @@ -3069,7 +3069,7 @@ jme_init_one(struct pci_dev *pdev, jwrite32(jme, JME_APMC, apmc); } - NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2) + NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, NAPI_POLL_WEIGHT) spin_lock_init(&jme->phy_lock); spin_lock_init(&jme->macaddr_lock); diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h index 3fe09ab2d7c9..32675e16021e 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h @@ -1171,7 +1171,6 @@ typedef struct { #define NETXEN_DB_MAPSIZE_BYTES 0x1000 -#define NETXEN_NETDEV_WEIGHT 128 #define NETXEN_ADAPTER_UP_MAGIC 777 #define NETXEN_NIC_PEG_TUNE 0 diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c index c401b0b4353d..ec4cf7fd4123 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c @@ -197,7 +197,7 @@ netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; netif_napi_add(netdev, &sds_ring->napi, - netxen_nic_poll, NETXEN_NETDEV_WEIGHT); + netxen_nic_poll, NAPI_POLL_WEIGHT); } return 0; diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index b5eb4195fc99..85e5c97191dd 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -7088,7 +7088,7 @@ rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) RTL_W8(Cfg9346, Cfg9346_Unlock); RTL_W8(Config1, RTL_R8(Config1) | PMEnable); - RTL_W8(Config5, RTL_R8(Config5) & PMEStatus); + RTL_W8(Config5, RTL_R8(Config5) & (BWF | MWF | UWF | LanWake | PMEStatus)); if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0) tp->features |= RTL_FEATURE_WOL; if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0) diff --git a/drivers/net/ethernet/sfc/filter.c b/drivers/net/ethernet/sfc/filter.c index 2a469b27a506..30d744235d27 100644 --- a/drivers/net/ethernet/sfc/filter.c +++ b/drivers/net/ethernet/sfc/filter.c @@ -675,7 +675,7 @@ s32 efx_filter_insert_filter(struct efx_nic *efx, struct efx_filter_spec *spec, BUILD_BUG_ON(EFX_FILTER_INDEX_UC_DEF != 0); BUILD_BUG_ON(EFX_FILTER_INDEX_MC_DEF != EFX_FILTER_MC_DEF - EFX_FILTER_UC_DEF); - rep_index = spec->type - EFX_FILTER_INDEX_UC_DEF; + rep_index = spec->type - EFX_FILTER_UC_DEF; ins_index = rep_index; spin_lock_bh(&state->lock); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 03de76c7a177..1c83a44c547b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -71,14 +71,18 @@ static int stmmac_probe_config_dt(struct platform_device *pdev, plat->force_sf_dma_mode = 1; } - dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg), GFP_KERNEL); - if (!dma_cfg) - return -ENOMEM; - - plat->dma_cfg = dma_cfg; - of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl); - dma_cfg->fixed_burst = of_property_read_bool(np, "snps,fixed-burst"); - dma_cfg->mixed_burst = of_property_read_bool(np, "snps,mixed-burst"); + if (of_find_property(np, "snps,pbl", NULL)) { + dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg), + GFP_KERNEL); + if (!dma_cfg) + return -ENOMEM; + plat->dma_cfg = dma_cfg; + of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl); + dma_cfg->fixed_burst = + of_property_read_bool(np, "snps,fixed-burst"); + dma_cfg->mixed_burst = + of_property_read_bool(np, "snps,mixed-burst"); + } return 0; } diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_net.c b/drivers/net/ethernet/toshiba/ps3_gelic_net.c index ad32af67e618..9c805e0c0cae 100644 --- a/drivers/net/ethernet/toshiba/ps3_gelic_net.c +++ b/drivers/net/ethernet/toshiba/ps3_gelic_net.c @@ -1466,8 +1466,7 @@ static void gelic_ether_setup_netdev_ops(struct net_device *netdev, { netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT; /* NAPI */ - netif_napi_add(netdev, napi, - gelic_net_poll, GELIC_NET_NAPI_WEIGHT); + netif_napi_add(netdev, napi, gelic_net_poll, NAPI_POLL_WEIGHT); netdev->ethtool_ops = &gelic_ether_ethtool_ops; netdev->netdev_ops = &gelic_netdevice_ops; } diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_net.h b/drivers/net/ethernet/toshiba/ps3_gelic_net.h index a93df6ac1909..309abb472aa2 100644 --- a/drivers/net/ethernet/toshiba/ps3_gelic_net.h +++ b/drivers/net/ethernet/toshiba/ps3_gelic_net.h @@ -37,7 +37,6 @@ #define GELIC_NET_RXBUF_ALIGN 128 #define GELIC_CARD_RX_CSUM_DEFAULT 1 /* hw chksum */ #define GELIC_NET_WATCHDOG_TIMEOUT 5*HZ -#define GELIC_NET_NAPI_WEIGHT (GELIC_NET_RX_DESCRIPTORS) #define GELIC_NET_BROADCAST_ADDR 0xffffffffffffL #define GELIC_NET_MC_COUNT_MAX 32 /* multicast address list */ diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c b/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c index e90e1f46121e..64b4639f43b6 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c @@ -175,6 +175,7 @@ int axienet_mdio_setup(struct axienet_local *lp, struct device_node *np) printk(KERN_WARNING "Setting MDIO clock divisor to " "default %d\n", DEFAULT_CLOCK_DIVISOR); clk_div = DEFAULT_CLOCK_DIVISOR; + of_node_put(np1); goto issue; } diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c index 51f2bc376101..2dcc60fb37f1 100644 --- a/drivers/net/irda/via-ircc.c +++ b/drivers/net/irda/via-ircc.c @@ -210,8 +210,7 @@ static int via_init_one(struct pci_dev *pcidev, const struct pci_device_id *id) pci_write_config_byte(pcidev,0x42,(bTmp | 0xf0)); pci_write_config_byte(pcidev,0x5a,0xc0); WriteLPCReg(0x28, 0x70 ); - if (via_ircc_open(pcidev, &info, 0x3076) == 0) - rc=0; + rc = via_ircc_open(pcidev, &info, 0x3076); } else rc = -ENODEV; //IR not turn on } else { //Not VT1211 @@ -249,8 +248,7 @@ static int via_init_one(struct pci_dev *pcidev, const struct pci_device_id *id) info.irq=FirIRQ; info.dma=FirDRQ1; info.dma2=FirDRQ0; - if (via_ircc_open(pcidev, &info, 0x3096) == 0) - rc=0; + rc = via_ircc_open(pcidev, &info, 0x3096); } else rc = -ENODEV; //IR not turn on !!!!! }//Not VT1211 diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index b51db2abfe44..ea53abb20988 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -68,6 +68,8 @@ static const struct proto_ops macvtap_socket_ops; #define TUN_OFFLOADS (NETIF_F_HW_CSUM | NETIF_F_TSO_ECN | NETIF_F_TSO | \ NETIF_F_TSO6 | NETIF_F_UFO) #define RX_OFFLOADS (NETIF_F_GRO | NETIF_F_LRO) +#define TAP_FEATURES (NETIF_F_GSO | NETIF_F_SG) + /* * RCU usage: * The macvtap_queue and the macvlan_dev are loosely coupled, the @@ -278,7 +280,8 @@ static int macvtap_forward(struct net_device *dev, struct sk_buff *skb) { struct macvlan_dev *vlan = netdev_priv(dev); struct macvtap_queue *q = macvtap_get_queue(dev, skb); - netdev_features_t features; + netdev_features_t features = TAP_FEATURES; + if (!q) goto drop; @@ -287,9 +290,11 @@ static int macvtap_forward(struct net_device *dev, struct sk_buff *skb) skb->dev = dev; /* Apply the forward feature mask so that we perform segmentation - * according to users wishes. + * according to users wishes. This only works if VNET_HDR is + * enabled. */ - features = netif_skb_features(skb) & vlan->tap_features; + if (q->flags & IFF_VNET_HDR) + features |= vlan->tap_features; if (netif_needs_gso(skb, features)) { struct sk_buff *segs = __skb_gso_segment(skb, features, false); @@ -1064,8 +1069,7 @@ static int set_offload(struct macvtap_queue *q, unsigned long arg) /* tap_features are the same as features on tun/tap and * reflect user expectations. */ - vlan->tap_features = vlan->dev->features & - (feature_mask | ~TUN_OFFLOADS); + vlan->tap_features = feature_mask; vlan->set_features = features; netdev_update_features(vlan->dev); @@ -1161,10 +1165,6 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd, TUN_F_TSO_ECN | TUN_F_UFO)) return -EINVAL; - /* TODO: only accept frames with the features that - got enabled for forwarded frames */ - if (!(q->flags & IFF_VNET_HDR)) - return -EINVAL; rtnl_lock(); ret = set_offload(q, arg); rtnl_unlock(); diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index 8e7af8354342..138de837977f 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -23,7 +23,7 @@ #define RTL821x_INER_INIT 0x6400 #define RTL821x_INSR 0x13 -#define RTL8211E_INER_LINK_STAT 0x10 +#define RTL8211E_INER_LINK_STATUS 0x400 MODULE_DESCRIPTION("Realtek PHY driver"); MODULE_AUTHOR("Johnson Leung"); @@ -57,7 +57,7 @@ static int rtl8211e_config_intr(struct phy_device *phydev) if (phydev->interrupts == PHY_INTERRUPT_ENABLED) err = phy_write(phydev, RTL821x_INER, - RTL8211E_INER_LINK_STAT); + RTL8211E_INER_LINK_STATUS); else err = phy_write(phydev, RTL821x_INER, 0); diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c index 2bc87e3a8141..4233c05a3e32 100644 --- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -1028,12 +1028,20 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf) dev->mii.phy_id = 0x03; dev->mii.supports_gmii = 1; + if (usb_device_no_sg_constraint(dev->udev)) + dev->can_dma_sg = 1; + dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM; dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM; + if (dev->can_dma_sg) { + dev->net->features |= NETIF_F_SG | NETIF_F_TSO; + dev->net->hw_features |= NETIF_F_SG | NETIF_F_TSO; + } + /* Enable checksum offload */ *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP | AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6; diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 872819851aef..25ba7eca9a13 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -400,6 +400,10 @@ static const struct usb_device_id mbim_devs[] = { { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68a2, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_mbim_info_zlp, }, + /* HP hs2434 Mobile Broadband Module needs ZLPs */ + { USB_DEVICE_AND_INTERFACE_INFO(0x3f0, 0x4b1d, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&cdc_mbim_info_zlp, + }, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_mbim_info, }, diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index cba1d46e672e..86292e6aaf49 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -2816,13 +2816,16 @@ exit: static int hso_get_config_data(struct usb_interface *interface) { struct usb_device *usbdev = interface_to_usbdev(interface); - u8 config_data[17]; + u8 *config_data = kmalloc(17, GFP_KERNEL); u32 if_num = interface->altsetting->desc.bInterfaceNumber; s32 result; + if (!config_data) + return -ENOMEM; if (usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x86, 0xC0, 0, 0, config_data, 17, USB_CTRL_SET_TIMEOUT) != 0x11) { + kfree(config_data); return -EIO; } @@ -2873,6 +2876,7 @@ static int hso_get_config_data(struct usb_interface *interface) if (config_data[16] & 0x1) result |= HSO_INFO_CRC_BUG; + kfree(config_data); return result; } @@ -2886,6 +2890,11 @@ static int hso_probe(struct usb_interface *interface, struct hso_shared_int *shared_int; struct hso_device *tmp_dev = NULL; + if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) { + dev_err(&interface->dev, "Not our interface\n"); + return -ENODEV; + } + if_num = interface->altsetting->desc.bInterfaceNumber; /* Get the interface/port specification from either driver_info or from @@ -2895,10 +2904,6 @@ static int hso_probe(struct usb_interface *interface, else port_spec = hso_get_config_data(interface); - if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) { - dev_err(&interface->dev, "Not our interface\n"); - return -ENODEV; - } /* Check if we need to switch to alt interfaces prior to port * configuration */ if (interface->num_altsetting > 1) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 06ee82f557d4..27a00b006033 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1197,6 +1197,37 @@ EXPORT_SYMBOL_GPL(usbnet_tx_timeout); /*-------------------------------------------------------------------------*/ +static int build_dma_sg(const struct sk_buff *skb, struct urb *urb) +{ + unsigned num_sgs, total_len = 0; + int i, s = 0; + + num_sgs = skb_shinfo(skb)->nr_frags + 1; + if (num_sgs == 1) + return 0; + + urb->sg = kmalloc(num_sgs * sizeof(struct scatterlist), GFP_ATOMIC); + if (!urb->sg) + return -ENOMEM; + + urb->num_sgs = num_sgs; + sg_init_table(urb->sg, urb->num_sgs); + + sg_set_buf(&urb->sg[s++], skb->data, skb_headlen(skb)); + total_len += skb_headlen(skb); + + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + struct skb_frag_struct *f = &skb_shinfo(skb)->frags[i]; + + total_len += skb_frag_size(f); + sg_set_page(&urb->sg[i + s], f->page.p, f->size, + f->page_offset); + } + urb->transfer_buffer_length = total_len; + + return 1; +} + netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, struct net_device *net) { @@ -1223,7 +1254,6 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, goto drop; } } - length = skb->len; if (!(urb = usb_alloc_urb (0, GFP_ATOMIC))) { netif_dbg(dev, tx_err, dev->net, "no urb\n"); @@ -1233,10 +1263,14 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, entry = (struct skb_data *) skb->cb; entry->urb = urb; entry->dev = dev; - entry->length = length; usb_fill_bulk_urb (urb, dev->udev, dev->out, skb->data, skb->len, tx_complete, skb); + if (dev->can_dma_sg) { + if (build_dma_sg(skb, urb) < 0) + goto drop; + } + entry->length = length = urb->transfer_buffer_length; /* don't assume the hardware handles USB_ZERO_PACKET * NOTE: strictly conforming cdc-ether devices should expect @@ -1305,7 +1339,10 @@ drop: not_drop: if (skb) dev_kfree_skb_any (skb); - usb_free_urb (urb); + if (urb) { + kfree(urb->sg); + usb_free_urb(urb); + } } else netif_dbg(dev, tx_queued, dev->net, "> tx, len %d, type 0x%x\n", length, skb->protocol); @@ -1356,6 +1393,7 @@ static void usbnet_bh (unsigned long param) rx_process (dev, skb); continue; case tx_done: + kfree(entry->urb->sg); case rx_cleanup: usb_free_urb (entry->urb); dev_kfree_skb (skb); @@ -1689,6 +1727,7 @@ int usbnet_resume (struct usb_interface *intf) retval = usb_submit_urb(res, GFP_ATOMIC); if (retval < 0) { dev_kfree_skb_any(skb); + kfree(res->sg); usb_free_urb(res); usb_autopm_put_interface_async(dev->intf); } else { diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c index e602c9519709..c028df76b564 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c @@ -448,6 +448,7 @@ static void ath9k_htc_tx_process(struct ath9k_htc_priv *priv, struct ieee80211_conf *cur_conf = &priv->hw->conf; bool txok; int slot; + int hdrlen, padsize; slot = strip_drv_header(priv, skb); if (slot < 0) { @@ -504,6 +505,15 @@ send_mac80211: ath9k_htc_tx_clear_slot(priv, slot); + /* Remove padding before handing frame back to mac80211 */ + hdrlen = ieee80211_get_hdrlen_from_skb(skb); + + padsize = hdrlen & 3; + if (padsize && skb->len > hdrlen + padsize) { + memmove(skb->data + padsize, skb->data, hdrlen); + skb_pull(skb, padsize); + } + /* Send status to mac80211 */ ieee80211_tx_status(priv->hw, skb); } diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 16f8b201642b..026a2a067b46 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -802,7 +802,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) IEEE80211_HW_PS_NULLFUNC_STACK | IEEE80211_HW_SPECTRUM_MGMT | IEEE80211_HW_REPORTS_TX_ACK_STATUS | - IEEE80211_HW_SUPPORTS_RC_TABLE; + IEEE80211_HW_SUPPORTS_RC_TABLE | + IEEE80211_HW_SUPPORTS_HT_CCK_RATES; if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 1737a3e33685..cb5a65553ac7 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -173,8 +173,7 @@ static void ath_restart_work(struct ath_softc *sc) { ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); - if (AR_SREV_9340(sc->sc_ah) || AR_SREV_9485(sc->sc_ah) || - AR_SREV_9550(sc->sc_ah)) + if (AR_SREV_9340(sc->sc_ah) || AR_SREV_9330(sc->sc_ah)) ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, msecs_to_jiffies(ATH_PLL_WORK_INTERVAL)); diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c index 4a33c6e39ca2..349fa22a921a 100644 --- a/drivers/net/wireless/ath/carl9170/main.c +++ b/drivers/net/wireless/ath/carl9170/main.c @@ -1860,7 +1860,8 @@ void *carl9170_alloc(size_t priv_size) IEEE80211_HW_PS_NULLFUNC_STACK | IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC | IEEE80211_HW_SUPPORTS_RC_TABLE | - IEEE80211_HW_SIGNAL_DBM; + IEEE80211_HW_SIGNAL_DBM | + IEEE80211_HW_SUPPORTS_HT_CCK_RATES; if (!modparam_noht) { /* diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c index ac074731335a..e5090309824e 100644 --- a/drivers/net/wireless/hostap/hostap_ioctl.c +++ b/drivers/net/wireless/hostap/hostap_ioctl.c @@ -523,9 +523,9 @@ static int prism2_ioctl_giwaplist(struct net_device *dev, data->length = prism2_ap_get_sta_qual(local, addr, qual, IW_MAX_AP, 1); - memcpy(extra, &addr, sizeof(struct sockaddr) * data->length); + memcpy(extra, addr, sizeof(struct sockaddr) * data->length); data->flags = 1; /* has quality information */ - memcpy(extra + sizeof(struct sockaddr) * data->length, &qual, + memcpy(extra + sizeof(struct sockaddr) * data->length, qual, sizeof(struct iw_quality) * data->length); kfree(addr); diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c index f2ed62e37340..7acf5ee23582 100644 --- a/drivers/net/wireless/iwlegacy/4965-mac.c +++ b/drivers/net/wireless/iwlegacy/4965-mac.c @@ -4464,9 +4464,9 @@ il4965_irq_tasklet(struct il_priv *il) set_bit(S_RFKILL, &il->status); } else { clear_bit(S_RFKILL, &il->status); - wiphy_rfkill_set_hw_state(il->hw->wiphy, hw_rf_kill); il_force_reset(il, true); } + wiphy_rfkill_set_hw_state(il->hw->wiphy, hw_rf_kill); handled |= CSR_INT_BIT_RF_KILL; } diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c index 822f1a00efbb..319387263e12 100644 --- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c @@ -1068,7 +1068,10 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; - if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) + if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) + return; + + if (ctx->vif) ieee80211_chswitch_done(ctx->vif, is_success); } diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index a70c7b9d9bad..ff8cc75c189d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -97,8 +97,6 @@ #define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800) -#define APMG_RTC_INT_STT_RFKILL (0x10000000) - /* Device system time */ #define DEVICE_SYSTEM_TIME_REG 0xA0206C diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c index ad9bbca99213..7fd6fbfbc1b3 100644 --- a/drivers/net/wireless/iwlwifi/mvm/time-event.c +++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c @@ -138,6 +138,20 @@ static void iwl_mvm_roc_finished(struct iwl_mvm *mvm) schedule_work(&mvm->roc_done_wk); } +static bool iwl_mvm_te_check_disconnect(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + const char *errmsg) +{ + if (vif->type != NL80211_IFTYPE_STATION) + return false; + if (vif->bss_conf.assoc && vif->bss_conf.dtim_period) + return false; + if (errmsg) + IWL_ERR(mvm, "%s\n", errmsg); + ieee80211_connection_loss(vif); + return true; +} + /* * Handles a FW notification for an event that is known to the driver. * @@ -163,8 +177,13 @@ static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm, * P2P Device discoveribility, while there are other higher priority * events in the system). */ - WARN_ONCE(!le32_to_cpu(notif->status), - "Failed to schedule time event\n"); + if (WARN_ONCE(!le32_to_cpu(notif->status), + "Failed to schedule time event\n")) { + if (iwl_mvm_te_check_disconnect(mvm, te_data->vif, NULL)) { + iwl_mvm_te_clear_data(mvm, te_data); + return; + } + } if (le32_to_cpu(notif->action) & TE_NOTIF_HOST_EVENT_END) { IWL_DEBUG_TE(mvm, @@ -180,14 +199,8 @@ static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm, * By now, we should have finished association * and know the dtim period. */ - if (te_data->vif->type == NL80211_IFTYPE_STATION && - (!te_data->vif->bss_conf.assoc || - !te_data->vif->bss_conf.dtim_period)) { - IWL_ERR(mvm, - "No assocation and the time event is over already...\n"); - ieee80211_connection_loss(te_data->vif); - } - + iwl_mvm_te_check_disconnect(mvm, te_data->vif, + "No assocation and the time event is over already..."); iwl_mvm_te_clear_data(mvm, te_data); } else if (le32_to_cpu(notif->action) & TE_NOTIF_HOST_EVENT_START) { te_data->running = true; diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index f600e68a410a..fd848cd1583e 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -888,14 +888,6 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); if (hw_rfkill) { - /* - * Clear the interrupt in APMG if the NIC is going down. - * Note that when the NIC exits RFkill (else branch), we - * can't access prph and the NIC will be reset in - * start_hw anyway. - */ - iwl_write_prph(trans, APMG_RTC_INT_STT_REG, - APMG_RTC_INT_STT_RFKILL); set_bit(STATUS_RFKILL, &trans_pcie->status); if (test_and_clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status)) diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index 96cfcdd39079..390e2f058aff 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -1502,16 +1502,16 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, spin_lock_init(&trans_pcie->reg_lock); init_waitqueue_head(&trans_pcie->ucode_write_waitq); - /* W/A - seems to solve weird behavior. We need to remove this if we - * don't want to stay in L1 all the time. This wastes a lot of power */ - pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | - PCIE_LINK_STATE_CLKPM); - if (pci_enable_device(pdev)) { err = -ENODEV; goto out_no_pci; } + /* W/A - seems to solve weird behavior. We need to remove this if we + * don't want to stay in L1 all the time. This wastes a lot of power */ + pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | + PCIE_LINK_STATE_CLKPM); + pci_set_master(pdev); err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 1f80ea5e29dd..1b41c8eda12d 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -6133,7 +6133,8 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev) IEEE80211_HW_SUPPORTS_PS | IEEE80211_HW_PS_NULLFUNC_STACK | IEEE80211_HW_AMPDU_AGGREGATION | - IEEE80211_HW_REPORTS_TX_ACK_STATUS; + IEEE80211_HW_REPORTS_TX_ACK_STATUS | + IEEE80211_HW_SUPPORTS_HT_CCK_RATES; /* * Don't set IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING for USB devices diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c index 4941f201d6c8..b8ba1f925e75 100644 --- a/drivers/net/wireless/zd1201.c +++ b/drivers/net/wireless/zd1201.c @@ -98,10 +98,12 @@ static int zd1201_fw_upload(struct usb_device *dev, int apfw) goto exit; err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4, - USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT); + USB_DIR_IN | 0x40, 0, 0, buf, sizeof(ret), ZD1201_FW_TIMEOUT); if (err < 0) goto exit; + memcpy(&ret, buf, sizeof(ret)); + if (ret & 0x80) { err = -EIO; goto exit; diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 6bb7cf2de556..b10ba00cc3e6 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -392,6 +392,8 @@ static void __unflatten_device_tree(struct boot_param_header *blob, mem = (unsigned long) dt_alloc(size + 4, __alignof__(struct device_node)); + memset((void *)mem, 0, size); + ((__be32 *)mem)[size / 4] = cpu_to_be32(0xdeadbeef); pr_debug(" unflattening %lx...\n", mem); diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index d85009de713d..0a648af89531 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -146,7 +146,7 @@ config HOTPLUG_PCI_SGI When in doubt, say N. config HOTPLUG_PCI_S390 - tristate "System z PCI Hotplug Support" + bool "System z PCI Hotplug Support" depends on S390 && 64BIT help Say Y here if you want to use the System z PCI Hotplug diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c index ea3fa90d020a..66e505ca24ef 100644 --- a/drivers/pci/hotplug/s390_pci_hpc.c +++ b/drivers/pci/hotplug/s390_pci_hpc.c @@ -79,8 +79,6 @@ static int enable_slot(struct hotplug_slot *hotplug_slot) if (rc) goto out_deconfigure; - slot->zdev->state = ZPCI_FN_STATE_ONLINE; - pci_scan_slot(slot->zdev->bus, ZPCI_DEVFN); pci_bus_add_devices(slot->zdev->bus); @@ -148,7 +146,7 @@ static struct hotplug_slot_ops s390_hotplug_slot_ops = { .get_adapter_status = get_adapter_status, }; -static int init_pci_slot(struct zpci_dev *zdev) +int zpci_init_slot(struct zpci_dev *zdev) { struct hotplug_slot *hotplug_slot; struct hotplug_slot_info *info; @@ -202,7 +200,7 @@ error: return -ENOMEM; } -static void exit_pci_slot(struct zpci_dev *zdev) +void zpci_exit_slot(struct zpci_dev *zdev) { struct list_head *tmp, *n; struct slot *slot; @@ -215,60 +213,3 @@ static void exit_pci_slot(struct zpci_dev *zdev) pci_hp_deregister(slot->hotplug_slot); } } - -static struct pci_hp_callback_ops hp_ops = { - .create_slot = init_pci_slot, - .remove_slot = exit_pci_slot, -}; - -static void __init init_pci_slots(void) -{ - struct zpci_dev *zdev; - - /* - * Create a structure for each slot, and register that slot - * with the pci_hotplug subsystem. - */ - mutex_lock(&zpci_list_lock); - list_for_each_entry(zdev, &zpci_list, entry) { - init_pci_slot(zdev); - } - mutex_unlock(&zpci_list_lock); -} - -static void __exit exit_pci_slots(void) -{ - struct list_head *tmp, *n; - struct slot *slot; - - /* - * Unregister all of our slots with the pci_hotplug subsystem. - * Memory will be freed in release_slot() callback after slot's - * lifespan is finished. - */ - list_for_each_safe(tmp, n, &s390_hotplug_slot_list) { - slot = list_entry(tmp, struct slot, slot_list); - list_del(&slot->slot_list); - pci_hp_deregister(slot->hotplug_slot); - } -} - -static int __init pci_hotplug_s390_init(void) -{ - if (!s390_pci_probe) - return -EOPNOTSUPP; - - zpci_register_hp_ops(&hp_ops); - init_pci_slots(); - - return 0; -} - -static void __exit pci_hotplug_s390_exit(void) -{ - exit_pci_slots(); - zpci_deregister_hp_ops(); -} - -module_init(pci_hotplug_s390_init); -module_exit(pci_hotplug_s390_exit); diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c index c47fd1e5450b..94716c779800 100644 --- a/drivers/pinctrl/pinctrl-sunxi.c +++ b/drivers/pinctrl/pinctrl-sunxi.c @@ -278,6 +278,7 @@ static int sunxi_pconf_group_set(struct pinctrl_dev *pctldev, { struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct sunxi_pinctrl_group *g = &pctl->groups[group]; + unsigned long flags; u32 val, mask; u16 strength; u8 dlevel; @@ -295,22 +296,35 @@ static int sunxi_pconf_group_set(struct pinctrl_dev *pctldev, * 3: 40mA */ dlevel = strength / 10 - 1; + + spin_lock_irqsave(&pctl->lock, flags); + val = readl(pctl->membase + sunxi_dlevel_reg(g->pin)); mask = DLEVEL_PINS_MASK << sunxi_dlevel_offset(g->pin); writel((val & ~mask) | dlevel << sunxi_dlevel_offset(g->pin), pctl->membase + sunxi_dlevel_reg(g->pin)); + + spin_unlock_irqrestore(&pctl->lock, flags); break; case PIN_CONFIG_BIAS_PULL_UP: + spin_lock_irqsave(&pctl->lock, flags); + val = readl(pctl->membase + sunxi_pull_reg(g->pin)); mask = PULL_PINS_MASK << sunxi_pull_offset(g->pin); writel((val & ~mask) | 1 << sunxi_pull_offset(g->pin), pctl->membase + sunxi_pull_reg(g->pin)); + + spin_unlock_irqrestore(&pctl->lock, flags); break; case PIN_CONFIG_BIAS_PULL_DOWN: + spin_lock_irqsave(&pctl->lock, flags); + val = readl(pctl->membase + sunxi_pull_reg(g->pin)); mask = PULL_PINS_MASK << sunxi_pull_offset(g->pin); writel((val & ~mask) | 2 << sunxi_pull_offset(g->pin), pctl->membase + sunxi_pull_reg(g->pin)); + + spin_unlock_irqrestore(&pctl->lock, flags); break; default: break; @@ -360,11 +374,17 @@ static void sunxi_pmx_set(struct pinctrl_dev *pctldev, u8 config) { struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + unsigned long flags; + u32 val, mask; + + spin_lock_irqsave(&pctl->lock, flags); - u32 val = readl(pctl->membase + sunxi_mux_reg(pin)); - u32 mask = MUX_PINS_MASK << sunxi_mux_offset(pin); + val = readl(pctl->membase + sunxi_mux_reg(pin)); + mask = MUX_PINS_MASK << sunxi_mux_offset(pin); writel((val & ~mask) | config << sunxi_mux_offset(pin), pctl->membase + sunxi_mux_reg(pin)); + + spin_unlock_irqrestore(&pctl->lock, flags); } static int sunxi_pmx_enable(struct pinctrl_dev *pctldev, @@ -464,8 +484,21 @@ static void sunxi_pinctrl_gpio_set(struct gpio_chip *chip, struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev); u32 reg = sunxi_data_reg(offset); u8 index = sunxi_data_offset(offset); + unsigned long flags; + u32 regval; + + spin_lock_irqsave(&pctl->lock, flags); + + regval = readl(pctl->membase + reg); - writel((value & DATA_PINS_MASK) << index, pctl->membase + reg); + if (value) + regval |= BIT(index); + else + regval &= ~(BIT(index)); + + writel(regval, pctl->membase + reg); + + spin_unlock_irqrestore(&pctl->lock, flags); } static int sunxi_pinctrl_gpio_of_xlate(struct gpio_chip *gc, @@ -526,6 +559,8 @@ static int sunxi_pinctrl_irq_set_type(struct irq_data *d, struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d); u32 reg = sunxi_irq_cfg_reg(d->hwirq); u8 index = sunxi_irq_cfg_offset(d->hwirq); + unsigned long flags; + u32 regval; u8 mode; switch (type) { @@ -548,7 +583,13 @@ static int sunxi_pinctrl_irq_set_type(struct irq_data *d, return -EINVAL; } - writel((mode & IRQ_CFG_IRQ_MASK) << index, pctl->membase + reg); + spin_lock_irqsave(&pctl->lock, flags); + + regval = readl(pctl->membase + reg); + regval &= ~IRQ_CFG_IRQ_MASK; + writel(regval | (mode << index), pctl->membase + reg); + + spin_unlock_irqrestore(&pctl->lock, flags); return 0; } @@ -560,14 +601,19 @@ static void sunxi_pinctrl_irq_mask_ack(struct irq_data *d) u8 ctrl_idx = sunxi_irq_ctrl_offset(d->hwirq); u32 status_reg = sunxi_irq_status_reg(d->hwirq); u8 status_idx = sunxi_irq_status_offset(d->hwirq); + unsigned long flags; u32 val; + spin_lock_irqsave(&pctl->lock, flags); + /* Mask the IRQ */ val = readl(pctl->membase + ctrl_reg); writel(val & ~(1 << ctrl_idx), pctl->membase + ctrl_reg); /* Clear the IRQ */ writel(1 << status_idx, pctl->membase + status_reg); + + spin_unlock_irqrestore(&pctl->lock, flags); } static void sunxi_pinctrl_irq_mask(struct irq_data *d) @@ -575,11 +621,16 @@ static void sunxi_pinctrl_irq_mask(struct irq_data *d) struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d); u32 reg = sunxi_irq_ctrl_reg(d->hwirq); u8 idx = sunxi_irq_ctrl_offset(d->hwirq); + unsigned long flags; u32 val; + spin_lock_irqsave(&pctl->lock, flags); + /* Mask the IRQ */ val = readl(pctl->membase + reg); writel(val & ~(1 << idx), pctl->membase + reg); + + spin_unlock_irqrestore(&pctl->lock, flags); } static void sunxi_pinctrl_irq_unmask(struct irq_data *d) @@ -588,6 +639,7 @@ static void sunxi_pinctrl_irq_unmask(struct irq_data *d) struct sunxi_desc_function *func; u32 reg = sunxi_irq_ctrl_reg(d->hwirq); u8 idx = sunxi_irq_ctrl_offset(d->hwirq); + unsigned long flags; u32 val; func = sunxi_pinctrl_desc_find_function_by_pin(pctl, @@ -597,9 +649,13 @@ static void sunxi_pinctrl_irq_unmask(struct irq_data *d) /* Change muxing to INT mode */ sunxi_pmx_set(pctl->pctl_dev, pctl->irq_array[d->hwirq], func->muxval); + spin_lock_irqsave(&pctl->lock, flags); + /* Unmask the IRQ */ val = readl(pctl->membase + reg); writel(val | (1 << idx), pctl->membase + reg); + + spin_unlock_irqrestore(&pctl->lock, flags); } static struct irq_chip sunxi_pinctrl_irq_chip = { @@ -752,6 +808,8 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev) return -ENOMEM; platform_set_drvdata(pdev, pctl); + spin_lock_init(&pctl->lock); + pctl->membase = of_iomap(node, 0); if (!pctl->membase) return -ENOMEM; diff --git a/drivers/pinctrl/pinctrl-sunxi.h b/drivers/pinctrl/pinctrl-sunxi.h index d68047d8f699..01c494f8a14f 100644 --- a/drivers/pinctrl/pinctrl-sunxi.h +++ b/drivers/pinctrl/pinctrl-sunxi.h @@ -14,6 +14,7 @@ #define __PINCTRL_SUNXI_H #include <linux/kernel.h> +#include <linux/spinlock.h> #define PA_BASE 0 #define PB_BASE 32 @@ -407,6 +408,7 @@ struct sunxi_pinctrl { unsigned ngroups; int irq; int irq_array[SUNXI_IRQ_NUMBER]; + spinlock_t lock; struct pinctrl_dev *pctl_dev; }; diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c index 0f9f8596b300..f9119525f557 100644 --- a/drivers/platform/olpc/olpc-ec.c +++ b/drivers/platform/olpc/olpc-ec.c @@ -330,7 +330,7 @@ static int __init olpc_ec_init_module(void) return platform_driver_register(&olpc_ec_plat_driver); } -module_init(olpc_ec_init_module); +arch_initcall(olpc_ec_init_module); MODULE_AUTHOR("Andres Salomon <dilinger@queued.net>"); MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 97bb05edcb5a..d6970f47ae72 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -53,7 +53,6 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); #define HPWMI_ALS_QUERY 0x3 #define HPWMI_HARDWARE_QUERY 0x4 #define HPWMI_WIRELESS_QUERY 0x5 -#define HPWMI_BIOS_QUERY 0x9 #define HPWMI_HOTKEY_QUERY 0xc #define HPWMI_WIRELESS2_QUERY 0x1b #define HPWMI_POSTCODEERROR_QUERY 0x2a @@ -293,19 +292,6 @@ static int hp_wmi_tablet_state(void) return (state & 0x4) ? 1 : 0; } -static int hp_wmi_enable_hotkeys(void) -{ - int ret; - int query = 0x6e; - - ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &query, sizeof(query), - 0); - - if (ret) - return -EINVAL; - return 0; -} - static int hp_wmi_set_block(void *data, bool blocked) { enum hp_wmi_radio r = (enum hp_wmi_radio) data; @@ -1009,8 +995,6 @@ static int __init hp_wmi_init(void) err = hp_wmi_input_setup(); if (err) return err; - - hp_wmi_enable_hotkeys(); } if (bios_capable) { diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 2ac045f27f10..3a1b6bf326a8 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -2440,7 +2440,10 @@ static ssize_t sony_nc_gfx_switch_status_show(struct device *dev, if (pos < 0) return pos; - return snprintf(buffer, PAGE_SIZE, "%s\n", pos ? "speed" : "stamina"); + return snprintf(buffer, PAGE_SIZE, "%s\n", + pos == SPEED ? "speed" : + pos == STAMINA ? "stamina" : + pos == AUTO ? "auto" : "unknown"); } static int sony_nc_gfx_switch_setup(struct platform_device *pd, @@ -4320,7 +4323,8 @@ static int sony_pic_add(struct acpi_device *device) goto err_free_resources; } - if (sonypi_compat_init()) + result = sonypi_compat_init(); + if (result) goto err_remove_input; /* request io port */ diff --git a/drivers/regulator/88pm800.c b/drivers/regulator/88pm800.c new file mode 100644 index 000000000000..3459f60dcfd1 --- /dev/null +++ b/drivers/regulator/88pm800.c @@ -0,0 +1,383 @@ +/* + * Regulators driver for Marvell 88PM800 + * + * Copyright (C) 2012 Marvell International Ltd. + * Joseph(Yossi) Hanin <yhanin@marvell.com> + * Yi Zhang <yizhang@marvell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/regmap.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> +#include <linux/mfd/88pm80x.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/regulator/of_regulator.h> + +/* LDO1 with DVC[0..3] */ +#define PM800_LDO1_VOUT (0x08) /* VOUT1 */ +#define PM800_LDO1_VOUT_2 (0x09) +#define PM800_LDO1_VOUT_3 (0x0A) +#define PM800_LDO2_VOUT (0x0B) +#define PM800_LDO3_VOUT (0x0C) +#define PM800_LDO4_VOUT (0x0D) +#define PM800_LDO5_VOUT (0x0E) +#define PM800_LDO6_VOUT (0x0F) +#define PM800_LDO7_VOUT (0x10) +#define PM800_LDO8_VOUT (0x11) +#define PM800_LDO9_VOUT (0x12) +#define PM800_LDO10_VOUT (0x13) +#define PM800_LDO11_VOUT (0x14) +#define PM800_LDO12_VOUT (0x15) +#define PM800_LDO13_VOUT (0x16) +#define PM800_LDO14_VOUT (0x17) +#define PM800_LDO15_VOUT (0x18) +#define PM800_LDO16_VOUT (0x19) +#define PM800_LDO17_VOUT (0x1A) +#define PM800_LDO18_VOUT (0x1B) +#define PM800_LDO19_VOUT (0x1C) + +/* BUCK1 with DVC[0..3] */ +#define PM800_BUCK1 (0x3C) +#define PM800_BUCK1_1 (0x3D) +#define PM800_BUCK1_2 (0x3E) +#define PM800_BUCK1_3 (0x3F) +#define PM800_BUCK2 (0x40) +#define PM800_BUCK3 (0x41) +#define PM800_BUCK3 (0x41) +#define PM800_BUCK4 (0x42) +#define PM800_BUCK4_1 (0x43) +#define PM800_BUCK4_2 (0x44) +#define PM800_BUCK4_3 (0x45) +#define PM800_BUCK5 (0x46) + +#define PM800_BUCK_ENA (0x50) +#define PM800_LDO_ENA1_1 (0x51) +#define PM800_LDO_ENA1_2 (0x52) +#define PM800_LDO_ENA1_3 (0x53) + +#define PM800_LDO_ENA2_1 (0x56) +#define PM800_LDO_ENA2_2 (0x57) +#define PM800_LDO_ENA2_3 (0x58) + +#define PM800_BUCK1_MISC1 (0x78) +#define PM800_BUCK3_MISC1 (0x7E) +#define PM800_BUCK4_MISC1 (0x81) +#define PM800_BUCK5_MISC1 (0x84) + +struct pm800_regulator_info { + struct regulator_desc desc; + int max_ua; +}; + +struct pm800_regulators { + struct regulator_dev *regulators[PM800_ID_RG_MAX]; + struct pm80x_chip *chip; + struct regmap *map; +}; + +/* + * vreg - the buck regs string. + * ereg - the string for the enable register. + * ebit - the bit number in the enable register. + * amax - the current + * Buck has 2 kinds of voltage steps. It is easy to find voltage by ranges, + * not the constant voltage table. + * n_volt - Number of available selectors + */ +#define PM800_BUCK(vreg, ereg, ebit, amax, volt_ranges, n_volt) \ +{ \ + .desc = { \ + .name = #vreg, \ + .ops = &pm800_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = PM800_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = n_volt, \ + .linear_ranges = volt_ranges, \ + .n_linear_ranges = ARRAY_SIZE(volt_ranges), \ + .vsel_reg = PM800_##vreg, \ + .vsel_mask = 0x7f, \ + .enable_reg = PM800_##ereg, \ + .enable_mask = 1 << (ebit), \ + }, \ + .max_ua = (amax), \ +} + +/* + * vreg - the LDO regs string + * ereg - the string for the enable register. + * ebit - the bit number in the enable register. + * amax - the current + * volt_table - the LDO voltage table + * For all the LDOes, there are too many ranges. Using volt_table will be + * simpler and faster. + */ +#define PM800_LDO(vreg, ereg, ebit, amax, ldo_volt_table) \ +{ \ + .desc = { \ + .name = #vreg, \ + .ops = &pm800_volt_table_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = PM800_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(ldo_volt_table), \ + .vsel_reg = PM800_##vreg##_VOUT, \ + .vsel_mask = 0x1f, \ + .enable_reg = PM800_##ereg, \ + .enable_mask = 1 << (ebit), \ + .volt_table = ldo_volt_table, \ + }, \ + .max_ua = (amax), \ +} + +/* Ranges are sorted in ascending order. */ +static const struct regulator_linear_range buck1_volt_range[] = { + { .min_uV = 600000, .max_uV = 1587500, .min_sel = 0, .max_sel = 0x4f, + .uV_step = 12500 }, + { .min_uV = 1600000, .max_uV = 1800000, .min_sel = 0x50, + .max_sel = 0x54, .uV_step = 50000 }, +}; + +/* BUCK 2~5 have same ranges. */ +static const struct regulator_linear_range buck2_5_volt_range[] = { + { .min_uV = 600000, .max_uV = 1587500, .min_sel = 0, .max_sel = 0x4f, + .uV_step = 12500 }, + { .min_uV = 1600000, .max_uV = 3300000, .min_sel = 0x50, + .max_sel = 0x72, .uV_step = 50000 }, +}; + +static const unsigned int ldo1_volt_table[] = { + 600000, 650000, 700000, 750000, 800000, 850000, 900000, 950000, + 1000000, 1050000, 1100000, 1150000, 1200000, 1300000, 1400000, 1500000, +}; + +static const unsigned int ldo2_volt_table[] = { + 1700000, 1800000, 1900000, 2000000, 2100000, 2500000, 2700000, 2800000, +}; + +/* LDO 3~17 have same voltage table. */ +static const unsigned int ldo3_17_volt_table[] = { + 1200000, 1250000, 1700000, 1800000, 1850000, 1900000, 2500000, 2600000, + 2700000, 2750000, 2800000, 2850000, 2900000, 3000000, 3100000, 3300000, +}; + +/* LDO 18~19 have same voltage table. */ +static const unsigned int ldo18_19_volt_table[] = { + 1700000, 1800000, 1900000, 2500000, 2800000, 2900000, 3100000, 3300000, +}; + +static int pm800_get_current_limit(struct regulator_dev *rdev) +{ + struct pm800_regulator_info *info = rdev_get_drvdata(rdev); + + return info->max_ua; +} + +static struct regulator_ops pm800_volt_range_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_current_limit = pm800_get_current_limit, +}; + +static struct regulator_ops pm800_volt_table_ops = { + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_iterate, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_current_limit = pm800_get_current_limit, +}; + +/* The array is indexed by id(PM800_ID_XXX) */ +static struct pm800_regulator_info pm800_regulator_info[] = { + PM800_BUCK(BUCK1, BUCK_ENA, 0, 3000000, buck1_volt_range, 0x55), + PM800_BUCK(BUCK2, BUCK_ENA, 1, 1200000, buck2_5_volt_range, 0x73), + PM800_BUCK(BUCK3, BUCK_ENA, 2, 1200000, buck2_5_volt_range, 0x73), + PM800_BUCK(BUCK4, BUCK_ENA, 3, 1200000, buck2_5_volt_range, 0x73), + PM800_BUCK(BUCK5, BUCK_ENA, 4, 1200000, buck2_5_volt_range, 0x73), + + PM800_LDO(LDO1, LDO_ENA1_1, 0, 200000, ldo1_volt_table), + PM800_LDO(LDO2, LDO_ENA1_1, 1, 10000, ldo2_volt_table), + PM800_LDO(LDO3, LDO_ENA1_1, 2, 300000, ldo3_17_volt_table), + PM800_LDO(LDO4, LDO_ENA1_1, 3, 300000, ldo3_17_volt_table), + PM800_LDO(LDO5, LDO_ENA1_1, 4, 300000, ldo3_17_volt_table), + PM800_LDO(LDO6, LDO_ENA1_1, 5, 300000, ldo3_17_volt_table), + PM800_LDO(LDO7, LDO_ENA1_1, 6, 300000, ldo3_17_volt_table), + PM800_LDO(LDO8, LDO_ENA1_1, 7, 300000, ldo3_17_volt_table), + PM800_LDO(LDO9, LDO_ENA1_2, 0, 300000, ldo3_17_volt_table), + PM800_LDO(LDO10, LDO_ENA1_2, 1, 300000, ldo3_17_volt_table), + PM800_LDO(LDO11, LDO_ENA1_2, 2, 300000, ldo3_17_volt_table), + PM800_LDO(LDO12, LDO_ENA1_2, 3, 300000, ldo3_17_volt_table), + PM800_LDO(LDO13, LDO_ENA1_2, 4, 300000, ldo3_17_volt_table), + PM800_LDO(LDO14, LDO_ENA1_2, 5, 300000, ldo3_17_volt_table), + PM800_LDO(LDO15, LDO_ENA1_2, 6, 300000, ldo3_17_volt_table), + PM800_LDO(LDO16, LDO_ENA1_2, 7, 300000, ldo3_17_volt_table), + PM800_LDO(LDO17, LDO_ENA1_3, 0, 300000, ldo3_17_volt_table), + PM800_LDO(LDO18, LDO_ENA1_3, 1, 200000, ldo18_19_volt_table), + PM800_LDO(LDO19, LDO_ENA1_3, 2, 200000, ldo18_19_volt_table), +}; + +#define PM800_REGULATOR_OF_MATCH(_name, _id) \ + [PM800_ID_##_id] = { \ + .name = #_name, \ + .driver_data = &pm800_regulator_info[PM800_ID_##_id], \ + } + +static struct of_regulator_match pm800_regulator_matches[] = { + PM800_REGULATOR_OF_MATCH(buck1, BUCK1), + PM800_REGULATOR_OF_MATCH(buck2, BUCK2), + PM800_REGULATOR_OF_MATCH(buck3, BUCK3), + PM800_REGULATOR_OF_MATCH(buck4, BUCK4), + PM800_REGULATOR_OF_MATCH(buck5, BUCK5), + PM800_REGULATOR_OF_MATCH(ldo1, LDO1), + PM800_REGULATOR_OF_MATCH(ldo2, LDO2), + PM800_REGULATOR_OF_MATCH(ldo3, LDO3), + PM800_REGULATOR_OF_MATCH(ldo4, LDO4), + PM800_REGULATOR_OF_MATCH(ldo5, LDO5), + PM800_REGULATOR_OF_MATCH(ldo6, LDO6), + PM800_REGULATOR_OF_MATCH(ldo7, LDO7), + PM800_REGULATOR_OF_MATCH(ldo8, LDO8), + PM800_REGULATOR_OF_MATCH(ldo9, LDO9), + PM800_REGULATOR_OF_MATCH(ldo10, LDO10), + PM800_REGULATOR_OF_MATCH(ldo11, LDO11), + PM800_REGULATOR_OF_MATCH(ldo12, LDO12), + PM800_REGULATOR_OF_MATCH(ldo13, LDO13), + PM800_REGULATOR_OF_MATCH(ldo14, LDO14), + PM800_REGULATOR_OF_MATCH(ldo15, LDO15), + PM800_REGULATOR_OF_MATCH(ldo16, LDO16), + PM800_REGULATOR_OF_MATCH(ldo17, LDO17), + PM800_REGULATOR_OF_MATCH(ldo18, LDO18), + PM800_REGULATOR_OF_MATCH(ldo19, LDO19), +}; + +static int pm800_regulator_dt_init(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + int ret; + + ret = of_regulator_match(&pdev->dev, np, + pm800_regulator_matches, + ARRAY_SIZE(pm800_regulator_matches)); + if (ret < 0) + return ret; + + return 0; +} + +static int pm800_regulator_probe(struct platform_device *pdev) +{ + struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent); + struct pm80x_platform_data *pdata = dev_get_platdata(pdev->dev.parent); + struct pm800_regulators *pm800_data; + struct pm800_regulator_info *info; + struct regulator_config config = { }; + struct regulator_init_data *init_data; + int i, ret; + + if (!pdata || pdata->num_regulators == 0) { + if (IS_ENABLED(CONFIG_OF)) { + ret = pm800_regulator_dt_init(pdev); + if (ret) + return ret; + } else { + return -ENODEV; + } + } else if (pdata->num_regulators) { + unsigned int count = 0; + + /* Check whether num_regulator is valid. */ + for (i = 0; i < ARRAY_SIZE(pdata->regulators); i++) { + if (pdata->regulators[i]) + count++; + } + if (count != pdata->num_regulators) + return -EINVAL; + } else { + return -EINVAL; + } + + pm800_data = devm_kzalloc(&pdev->dev, sizeof(*pm800_data), + GFP_KERNEL); + if (!pm800_data) { + dev_err(&pdev->dev, "Failed to allocate pm800_regualtors"); + return -ENOMEM; + } + + pm800_data->map = chip->subchip->regmap_power; + pm800_data->chip = chip; + + platform_set_drvdata(pdev, pm800_data); + + for (i = 0; i < PM800_ID_RG_MAX; i++) { + if (!pdata || pdata->num_regulators == 0) + init_data = pm800_regulator_matches[i].init_data; + else + init_data = pdata->regulators[i]; + if (!init_data) + continue; + info = pm800_regulator_matches[i].driver_data; + config.dev = &pdev->dev; + config.init_data = init_data; + config.driver_data = info; + config.regmap = pm800_data->map; + config.of_node = pm800_regulator_matches[i].of_node; + + pm800_data->regulators[i] = + regulator_register(&info->desc, &config); + if (IS_ERR(pm800_data->regulators[i])) { + ret = PTR_ERR(pm800_data->regulators[i]); + dev_err(&pdev->dev, "Failed to register %s\n", + info->desc.name); + + while (--i >= 0) + regulator_unregister(pm800_data->regulators[i]); + + return ret; + } + } + + return 0; +} + +static int pm800_regulator_remove(struct platform_device *pdev) +{ + struct pm800_regulators *pm800_data = platform_get_drvdata(pdev); + int i; + + for (i = 0; i < PM800_ID_RG_MAX; i++) + regulator_unregister(pm800_data->regulators[i]); + + return 0; +} + +static struct platform_driver pm800_regulator_driver = { + .driver = { + .name = "88pm80x-regulator", + .owner = THIS_MODULE, + }, + .probe = pm800_regulator_probe, + .remove = pm800_regulator_remove, +}; + +module_platform_driver(pm800_regulator_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Joseph(Yossi) Hanin <yhanin@marvell.com>"); +MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM800 PMIC"); +MODULE_ALIAS("platform:88pm800-regulator"); diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c index 8a7cb1f43046..70230974468c 100644 --- a/drivers/regulator/88pm8607.c +++ b/drivers/regulator/88pm8607.c @@ -346,7 +346,7 @@ static int pm8607_regulator_probe(struct platform_device *pdev) { struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); struct pm8607_regulator_info *info = NULL; - struct regulator_init_data *pdata = pdev->dev.platform_data; + struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev); struct regulator_config config = { }; struct resource *res; int i; diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index f1e6ad98eeba..dfe58096b374 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -64,15 +64,21 @@ config REGULATOR_USERSPACE_CONSUMER If unsure, say no. -config REGULATOR_GPIO - tristate "GPIO regulator support" - depends on GPIOLIB +config REGULATOR_88PM800 + tristate "Marvell 88PM800 Power regulators" + depends on MFD_88PM800 help - This driver provides support for regulators that can be - controlled via gpios. - It is capable of supporting current and voltage regulators - and the platform has to provide a mapping of GPIO-states - to target volts/amps. + This driver supports Marvell 88PM800 voltage regulator chips. + It delivers digitally programmable output, + the voltage is programmed via I2C interface. + It's suitable to support PXA988 chips to control VCC_MAIN and + various voltages. + +config REGULATOR_88PM8607 + tristate "Marvell 88PM8607 Power regulators" + depends on MFD_88PM860X=y + help + This driver supports 88PM8607 voltage regulator chips. config REGULATOR_AD5398 tristate "Analog Devices AD5398/AD5821 regulators" @@ -81,6 +87,14 @@ config REGULATOR_AD5398 This driver supports AD5398 and AD5821 current regulator chips. If building into module, its name is ad5398.ko. +config REGULATOR_ANATOP + tristate "Freescale i.MX on-chip ANATOP LDO regulators" + depends on MFD_SYSCON + help + Say y here to support Freescale i.MX on-chip ANATOP LDOs + regulators. It is recommended that this option be + enabled on i.MX6 platform. + config REGULATOR_AAT2870 tristate "AnalogicTech AAT2870 Regulators" depends on MFD_AAT2870_CORE @@ -88,6 +102,22 @@ config REGULATOR_AAT2870 If you have a AnalogicTech AAT2870 say Y to enable the regulator driver. +config REGULATOR_AB3100 + tristate "ST-Ericsson AB3100 Regulator functions" + depends on AB3100_CORE + default y if AB3100_CORE + help + These regulators correspond to functionality in the + AB3100 analog baseband dealing with power regulators + for the system. + +config REGULATOR_AB8500 + bool "ST-Ericsson AB8500 Power Regulators" + depends on AB8500_CORE + help + This driver supports the regulators found on the ST-Ericsson mixed + signal AB8500 PMIC + config REGULATOR_ARIZONA tristate "Wolfson Arizona class devices" depends on MFD_ARIZONA @@ -96,6 +126,13 @@ config REGULATOR_ARIZONA Support for the regulators found on Wolfson Arizona class devices. +config REGULATOR_AS3711 + tristate "AS3711 PMIC" + depends on MFD_AS3711 + help + This driver provides support for the voltage regulators on the + AS3711 PMIC + config REGULATOR_DA903X tristate "Dialog Semiconductor DA9030/DA9034 regulators" depends on PMIC_DA903X @@ -120,6 +157,37 @@ config REGULATOR_DA9055 This driver can also be built as a module. If so, the module will be called da9055-regulator. +config REGULATOR_DA9063 + tristate "Dialog Semiconductor DA9063 regulators" + depends on MFD_DA9063 + help + Say y here to support the BUCKs and LDOs regulators found on + DA9063 PMICs. + + This driver can also be built as a module. If so, the module + will be called da9063-regulator. + +config REGULATOR_DA9210 + tristate "Dialog Semiconductor DA9210 regulator" + depends on I2C + select REGMAP_I2C + help + Say y here to support for the Dialog Semiconductor DA9210. + The DA9210 is a multi-phase synchronous step down + converter 12A DC-DC Buck controlled through an I2C + interface. + +config REGULATOR_DBX500_PRCMU + bool + +config REGULATOR_DB8500_PRCMU + bool "ST-Ericsson DB8500 Voltage Domain Regulators" + depends on MFD_DB8500_PRCMU + select REGULATOR_DBX500_PRCMU + help + This driver supports the voltage domain regulators controlled by the + DB8500 PRCMU + config REGULATOR_FAN53555 tristate "Fairchild FAN53555 Regulator" depends on I2C @@ -131,44 +199,57 @@ config REGULATOR_FAN53555 input voltage supply of 2.5V to 5.5V. The output voltage is programmed through an I2C interface. -config REGULATOR_ANATOP - tristate "Freescale i.MX on-chip ANATOP LDO regulators" - depends on MFD_SYSCON +config REGULATOR_GPIO + tristate "GPIO regulator support" + depends on GPIOLIB help - Say y here to support Freescale i.MX on-chip ANATOP LDOs - regulators. It is recommended that this option be - enabled on i.MX6 platform. + This driver provides support for regulators that can be + controlled via gpios. + It is capable of supporting current and voltage regulators + and the platform has to provide a mapping of GPIO-states + to target volts/amps. -config REGULATOR_MC13XXX_CORE - tristate +config REGULATOR_ISL6271A + tristate "Intersil ISL6271A Power regulator" + depends on I2C + help + This driver supports ISL6271A voltage regulator chip. -config REGULATOR_MC13783 - tristate "Freescale MC13783 regulator driver" - depends on MFD_MC13783 - select REGULATOR_MC13XXX_CORE +config REGULATOR_LP3971 + tristate "National Semiconductors LP3971 PMIC regulator driver" + depends on I2C help - Say y here to support the regulators found on the Freescale MC13783 - PMIC. + Say Y here to support the voltage regulators and convertors + on National Semiconductors LP3971 PMIC -config REGULATOR_MC13892 - tristate "Freescale MC13892 regulator driver" - depends on MFD_MC13XXX - select REGULATOR_MC13XXX_CORE +config REGULATOR_LP3972 + tristate "National Semiconductors LP3972 PMIC regulator driver" + depends on I2C help - Say y here to support the regulators found on the Freescale MC13892 - PMIC. + Say Y here to support the voltage regulators and convertors + on National Semiconductors LP3972 PMIC -config REGULATOR_ISL6271A - tristate "Intersil ISL6271A Power regulator" +config REGULATOR_LP872X + tristate "TI/National Semiconductor LP8720/LP8725 voltage regulators" depends on I2C + select REGMAP_I2C help - This driver supports ISL6271A voltage regulator chip. + This driver supports LP8720/LP8725 PMIC -config REGULATOR_88PM8607 - bool "Marvell 88PM8607 Power regulators" - depends on MFD_88PM860X=y +config REGULATOR_LP8755 + tristate "TI LP8755 High Performance PMU driver" + depends on I2C + select REGMAP_I2C help - This driver supports 88PM8607 voltage regulator chips. + This driver supports LP8755 High Performance PMU driver. This + chip contains six step-down DC/DC converters which can support + 9 mode multiphase configuration. + +config REGULATOR_LP8788 + tristate "TI LP8788 Power Regulators" + depends on MFD_LP8788 + help + This driver supports LP8788 voltage regulator chip. config REGULATOR_MAX1586 tristate "Maxim 1586/1587 voltage regulator" @@ -259,48 +340,43 @@ config REGULATOR_MAX77693 and one current regulator 'CHARGER'. This is suitable for Exynos-4x12 chips. -config REGULATOR_PCAP - tristate "Motorola PCAP2 regulator driver" - depends on EZX_PCAP - help - This driver provides support for the voltage regulators of the - PCAP2 PMIC. +config REGULATOR_MC13XXX_CORE + tristate -config REGULATOR_LP3971 - tristate "National Semiconductors LP3971 PMIC regulator driver" - depends on I2C +config REGULATOR_MC13783 + tristate "Freescale MC13783 regulator driver" + depends on MFD_MC13783 + select REGULATOR_MC13XXX_CORE help - Say Y here to support the voltage regulators and convertors - on National Semiconductors LP3971 PMIC + Say y here to support the regulators found on the Freescale MC13783 + PMIC. -config REGULATOR_LP3972 - tristate "National Semiconductors LP3972 PMIC regulator driver" - depends on I2C +config REGULATOR_MC13892 + tristate "Freescale MC13892 regulator driver" + depends on MFD_MC13XXX + select REGULATOR_MC13XXX_CORE help - Say Y here to support the voltage regulators and convertors - on National Semiconductors LP3972 PMIC + Say y here to support the regulators found on the Freescale MC13892 + PMIC. -config REGULATOR_LP872X - bool "TI/National Semiconductor LP8720/LP8725 voltage regulators" - depends on I2C=y - select REGMAP_I2C +config REGULATOR_PALMAS + tristate "TI Palmas PMIC Regulators" + depends on MFD_PALMAS help - This driver supports LP8720/LP8725 PMIC + If you wish to control the regulators on the Palmas series of + chips say Y here. This will enable support for all the software + controllable SMPS/LDO regulators. -config REGULATOR_LP8755 - tristate "TI LP8755 High Performance PMU driver" - depends on I2C - select REGMAP_I2C - help - This driver supports LP8755 High Performance PMU driver. This - chip contains six step-down DC/DC converters which can support - 9 mode multiphase configuration. + The regulators available on Palmas series chips vary depending + on the muxing. This is handled automatically in the driver by + reading the mux info from OTP. -config REGULATOR_LP8788 - bool "TI LP8788 Power Regulators" - depends on MFD_LP8788 +config REGULATOR_PCAP + tristate "Motorola PCAP2 regulator driver" + depends on EZX_PCAP help - This driver supports LP8788 voltage regulator chip. + This driver provides support for the voltage regulators of the + PCAP2 PMIC. config REGULATOR_PCF50633 tristate "NXP PCF50633 regulator driver" @@ -309,6 +385,14 @@ config REGULATOR_PCF50633 Say Y here to support the voltage regulators and convertors on PCF50633 +config REGULATOR_PFUZE100 + tristate "Support regulators on Freescale PFUZE100 PMIC" + depends on I2C + select REGMAP_I2C + help + Say y here to support the regulators found on the Freescale PFUZE100 + PMIC. + config REGULATOR_RC5T583 tristate "RICOH RC5T583 Power regulators" depends on MFD_RC5T583 @@ -335,44 +419,15 @@ config REGULATOR_S5M8767 via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and supports DVS mode with 8bits of output voltage control. -config REGULATOR_AB3100 - tristate "ST-Ericsson AB3100 Regulator functions" - depends on AB3100_CORE - default y if AB3100_CORE - help - These regulators correspond to functionality in the - AB3100 analog baseband dealing with power regulators - for the system. - -config REGULATOR_AB8500 - bool "ST-Ericsson AB8500 Power Regulators" - depends on AB8500_CORE - help - This driver supports the regulators found on the ST-Ericsson mixed - signal AB8500 PMIC - -config REGULATOR_DBX500_PRCMU - bool - -config REGULATOR_DB8500_PRCMU - bool "ST-Ericsson DB8500 Voltage Domain Regulators" - depends on MFD_DB8500_PRCMU - select REGULATOR_DBX500_PRCMU - help - This driver supports the voltage domain regulators controlled by the - DB8500 PRCMU - -config REGULATOR_PALMAS - tristate "TI Palmas PMIC Regulators" - depends on MFD_PALMAS +config REGULATOR_TI_ABB + tristate "TI Adaptive Body Bias on-chip LDO" + depends on ARCH_OMAP help - If you wish to control the regulators on the Palmas series of - chips say Y here. This will enable support for all the software - controllable SMPS/LDO regulators. - - The regulators available on Palmas series chips vary depending - on the muxing. This is handled automatically in the driver by - reading the mux info from OTP. + Select this option to support Texas Instruments' on-chip Adaptive Body + Bias (ABB) LDO regulators. It is recommended that this option be + enabled on required TI SoC. Certain Operating Performance Points + on TI SoCs may be unstable without enabling this as it provides + device specific optimized bias to allow/optimize functionality. config REGULATOR_TPS51632 tristate "TI TPS51632 Power Regulator" @@ -475,22 +530,12 @@ config REGULATOR_TPS80031 output to control regulators. config REGULATOR_TWL4030 - bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC" + tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC" depends on TWL4030_CORE help This driver supports the voltage regulators provided by this family of companion chips. -config REGULATOR_TI_ABB - bool "TI Adaptive Body Bias on-chip LDO" - depends on ARCH_OMAP - help - Select this option to support Texas Instruments' on-chip Adaptive Body - Bias (ABB) LDO regulators. It is recommended that this option be - enabled on required TI SoC. Certain Operating Performance Points - on TI SoCs may be unstable without enabling this as it provides - device specific optimized bias to allow/optimize functionality. - config REGULATOR_VEXPRESS tristate "Versatile Express regulators" depends on VEXPRESS_CONFIG @@ -526,12 +571,5 @@ config REGULATOR_WM8994 This driver provides support for the voltage regulators on the WM8994 CODEC. -config REGULATOR_AS3711 - tristate "AS3711 PMIC" - depends on MFD_AS3711 - help - This driver provides support for the voltage regulators on the - AS3711 PMIC - endif diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index ba4a3cf3afec..185cce246022 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -3,12 +3,13 @@ # -obj-$(CONFIG_REGULATOR) += core.o dummy.o fixed-helper.o +obj-$(CONFIG_REGULATOR) += core.o dummy.o fixed-helper.o helpers.o obj-$(CONFIG_OF) += of_regulator.o obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o +obj-$(CONFIG_REGULATOR_88PM800) += 88pm800.o obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o obj-$(CONFIG_REGULATOR_AAT2870) += aat2870-regulator.o obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o @@ -20,6 +21,8 @@ obj-$(CONFIG_REGULATOR_AS3711) += as3711-regulator.o obj-$(CONFIG_REGULATOR_DA903X) += da903x.o obj-$(CONFIG_REGULATOR_DA9052) += da9052-regulator.o obj-$(CONFIG_REGULATOR_DA9055) += da9055-regulator.o +obj-$(CONFIG_REGULATOR_DA9063) += da9063-regulator.o +obj-$(CONFIG_REGULATOR_DA9210) += da9210-regulator.o obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o @@ -46,12 +49,14 @@ obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o +obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o +obj-$(CONFIG_REGULATOR_TI_ABB) += ti-abb-regulator.o obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o obj-$(CONFIG_REGULATOR_TPS62360) += tps62360-regulator.o obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o @@ -64,7 +69,6 @@ obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o -obj-$(CONFIG_REGULATOR_TI_ABB) += ti-abb-regulator.o obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o diff --git a/drivers/regulator/aat2870-regulator.c b/drivers/regulator/aat2870-regulator.c index 8b5876356db9..881159dfcb5e 100644 --- a/drivers/regulator/aat2870-regulator.c +++ b/drivers/regulator/aat2870-regulator.c @@ -174,7 +174,7 @@ static int aat2870_regulator_probe(struct platform_device *pdev) config.dev = &pdev->dev; config.driver_data = ri; - config.init_data = pdev->dev.platform_data; + config.init_data = dev_get_platdata(&pdev->dev); rdev = regulator_register(&ri->desc, &config); if (IS_ERR(rdev)) { diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index 3be9e46594a1..7d5eaa874b2d 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -660,7 +660,7 @@ ab3100_regulator_of_probe(struct platform_device *pdev, struct device_node *np) static int ab3100_regulators_probe(struct platform_device *pdev) { - struct ab3100_platform_data *plfdata = pdev->dev.platform_data; + struct ab3100_platform_data *plfdata = dev_get_platdata(&pdev->dev); struct device_node *np = pdev->dev.of_node; int err = 0; u8 data; diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c index 6b981b5faa70..b2b203cb6b2f 100644 --- a/drivers/regulator/ad5398.c +++ b/drivers/regulator/ad5398.c @@ -214,7 +214,7 @@ MODULE_DEVICE_TABLE(i2c, ad5398_id); static int ad5398_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct regulator_init_data *init_data = client->dev.platform_data; + struct regulator_init_data *init_data = dev_get_platdata(&client->dev); struct regulator_config config = { }; struct ad5398_chip_info *chip; const struct ad5398_current_data_format *df = diff --git a/drivers/regulator/as3711-regulator.c b/drivers/regulator/as3711-regulator.c index 3da6bd6950cf..8406cd745da2 100644 --- a/drivers/regulator/as3711-regulator.c +++ b/drivers/regulator/as3711-regulator.c @@ -30,102 +30,6 @@ struct as3711_regulator { struct regulator_dev *rdev; }; -static int as3711_list_voltage_sd(struct regulator_dev *rdev, - unsigned int selector) -{ - if (selector >= rdev->desc->n_voltages) - return -EINVAL; - - if (!selector) - return 0; - if (selector < 0x41) - return 600000 + selector * 12500; - if (selector < 0x71) - return 1400000 + (selector - 0x40) * 25000; - return 2600000 + (selector - 0x70) * 50000; -} - -static int as3711_list_voltage_aldo(struct regulator_dev *rdev, - unsigned int selector) -{ - if (selector >= rdev->desc->n_voltages) - return -EINVAL; - - if (selector < 0x10) - return 1200000 + selector * 50000; - return 1800000 + (selector - 0x10) * 100000; -} - -static int as3711_list_voltage_dldo(struct regulator_dev *rdev, - unsigned int selector) -{ - if (selector >= rdev->desc->n_voltages || - (selector > 0x10 && selector < 0x20)) - return -EINVAL; - - if (selector < 0x11) - return 900000 + selector * 50000; - return 1750000 + (selector - 0x20) * 50000; -} - -static int as3711_bound_check(struct regulator_dev *rdev, - int *min_uV, int *max_uV) -{ - struct as3711_regulator *reg = rdev_get_drvdata(rdev); - struct as3711_regulator_info *info = reg->reg_info; - - dev_dbg(&rdev->dev, "%s(), %d, %d, %d\n", __func__, - *min_uV, rdev->desc->min_uV, info->max_uV); - - if (*max_uV < *min_uV || - *min_uV > info->max_uV || rdev->desc->min_uV > *max_uV) - return -EINVAL; - - if (rdev->desc->n_voltages == 1) - return 0; - - if (*max_uV > info->max_uV) - *max_uV = info->max_uV; - - if (*min_uV < rdev->desc->min_uV) - *min_uV = rdev->desc->min_uV; - - return *min_uV; -} - -static int as3711_sel_check(int min, int max, int bottom, int step) -{ - int sel, voltage; - - /* Round up min, when dividing: keeps us within the range */ - sel = DIV_ROUND_UP(min - bottom, step); - voltage = sel * step + bottom; - pr_debug("%s(): select %d..%d in %d+N*%d: %d\n", __func__, - min, max, bottom, step, sel); - if (voltage > max) - return -EINVAL; - - return sel; -} - -static int as3711_map_voltage_sd(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int ret; - - ret = as3711_bound_check(rdev, &min_uV, &max_uV); - if (ret <= 0) - return ret; - - if (min_uV <= 1400000) - return as3711_sel_check(min_uV, max_uV, 600000, 12500); - - if (min_uV <= 2600000) - return as3711_sel_check(min_uV, max_uV, 1400000, 25000) + 0x40; - - return as3711_sel_check(min_uV, max_uV, 2600000, 50000) + 0x70; -} - /* * The regulator API supports 4 modes of operataion: FAST, NORMAL, IDLE and * STANDBY. We map them in the following way to AS3711 SD1-4 DCDC modes: @@ -180,44 +84,14 @@ static unsigned int as3711_get_mode_sd(struct regulator_dev *rdev) return -EINVAL; } -static int as3711_map_voltage_aldo(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int ret; - - ret = as3711_bound_check(rdev, &min_uV, &max_uV); - if (ret <= 0) - return ret; - - if (min_uV <= 1800000) - return as3711_sel_check(min_uV, max_uV, 1200000, 50000); - - return as3711_sel_check(min_uV, max_uV, 1800000, 100000) + 0x10; -} - -static int as3711_map_voltage_dldo(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int ret; - - ret = as3711_bound_check(rdev, &min_uV, &max_uV); - if (ret <= 0) - return ret; - - if (min_uV <= 1700000) - return as3711_sel_check(min_uV, max_uV, 900000, 50000); - - return as3711_sel_check(min_uV, max_uV, 1750000, 50000) + 0x20; -} - static struct regulator_ops as3711_sd_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .list_voltage = as3711_list_voltage_sd, - .map_voltage = as3711_map_voltage_sd, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, .get_mode = as3711_get_mode_sd, .set_mode = as3711_set_mode_sd, }; @@ -228,8 +102,8 @@ static struct regulator_ops as3711_aldo_ops = { .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .list_voltage = as3711_list_voltage_aldo, - .map_voltage = as3711_map_voltage_aldo, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, }; static struct regulator_ops as3711_dldo_ops = { @@ -238,8 +112,31 @@ static struct regulator_ops as3711_dldo_ops = { .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .list_voltage = as3711_list_voltage_dldo, - .map_voltage = as3711_map_voltage_dldo, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, +}; + +static const struct regulator_linear_range as3711_sd_ranges[] = { + { .min_uV = 612500, .max_uV = 1400000, + .min_sel = 0x1, .max_sel = 0x40, .uV_step = 12500 }, + { .min_uV = 1425000, .max_uV = 2600000, + .min_sel = 0x41, .max_sel = 0x70, .uV_step = 25000 }, + { .min_uV = 2650000, .max_uV = 3350000, + .min_sel = 0x71, .max_sel = 0x7f, .uV_step = 50000 }, +}; + +static const struct regulator_linear_range as3711_aldo_ranges[] = { + { .min_uV = 1200000, .max_uV = 1950000, + .min_sel = 0, .max_sel = 0xf, .uV_step = 50000 }, + { .min_uV = 1800000, .max_uV = 3300000, + .min_sel = 0x10, .max_sel = 0x1f, .uV_step = 100000 }, +}; + +static const struct regulator_linear_range as3711_dldo_ranges[] = { + { .min_uV = 900000, .max_uV = 1700000, + .min_sel = 0, .max_sel = 0x10, .uV_step = 50000 }, + { .min_uV = 1750000, .max_uV = 3300000, + .min_sel = 0x20, .max_sel = 0x3f, .uV_step = 50000 }, }; #define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _vshift, _min_uV, _max_uV, _sfx) \ @@ -256,6 +153,8 @@ static struct regulator_ops as3711_dldo_ops = { .enable_reg = AS3711_ ## _en_reg, \ .enable_mask = BIT(_en_bit), \ .min_uV = _min_uV, \ + .linear_ranges = as3711_ ## _sfx ## _ranges, \ + .n_linear_ranges = ARRAY_SIZE(as3711_ ## _sfx ## _ranges), \ }, \ .max_uV = _max_uV, \ } diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 288c75abc190..a01b8b3b70ca 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -323,13 +323,14 @@ static ssize_t regulator_uA_show(struct device *dev, } static DEVICE_ATTR(microamps, 0444, regulator_uA_show, NULL); -static ssize_t regulator_name_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t name_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct regulator_dev *rdev = dev_get_drvdata(dev); return sprintf(buf, "%s\n", rdev_get_name(rdev)); } +static DEVICE_ATTR_RO(name); static ssize_t regulator_print_opmode(char *buf, int mode) { @@ -489,15 +490,16 @@ static ssize_t regulator_total_uA_show(struct device *dev, } static DEVICE_ATTR(requested_microamps, 0444, regulator_total_uA_show, NULL); -static ssize_t regulator_num_users_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t num_users_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct regulator_dev *rdev = dev_get_drvdata(dev); return sprintf(buf, "%d\n", rdev->use_count); } +static DEVICE_ATTR_RO(num_users); -static ssize_t regulator_type_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t type_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct regulator_dev *rdev = dev_get_drvdata(dev); @@ -509,6 +511,7 @@ static ssize_t regulator_type_show(struct device *dev, } return sprintf(buf, "unknown\n"); } +static DEVICE_ATTR_RO(type); static ssize_t regulator_suspend_mem_uV_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -632,12 +635,13 @@ static DEVICE_ATTR(bypass, 0444, * These are the only attributes are present for all regulators. * Other attributes are a function of regulator functionality. */ -static struct device_attribute regulator_dev_attrs[] = { - __ATTR(name, 0444, regulator_name_show, NULL), - __ATTR(num_users, 0444, regulator_num_users_show, NULL), - __ATTR(type, 0444, regulator_type_show, NULL), - __ATTR_NULL, +static struct attribute *regulator_dev_attrs[] = { + &dev_attr_name.attr, + &dev_attr_num_users.attr, + &dev_attr_type.attr, + NULL, }; +ATTRIBUTE_GROUPS(regulator_dev); static void regulator_dev_release(struct device *dev) { @@ -648,7 +652,7 @@ static void regulator_dev_release(struct device *dev) static struct class regulator_class = { .name = "regulator", .dev_release = regulator_dev_release, - .dev_attrs = regulator_dev_attrs, + .dev_groups = regulator_dev_groups, }; /* Calculate the new optimum regulator operating mode based on the new total @@ -984,7 +988,8 @@ static int set_machine_constraints(struct regulator_dev *rdev, } } - if (rdev->constraints->ramp_delay && ops->set_ramp_delay) { + if ((rdev->constraints->ramp_delay || rdev->constraints->ramp_disable) + && ops->set_ramp_delay) { ret = ops->set_ramp_delay(rdev, rdev->constraints->ramp_delay); if (ret < 0) { rdev_err(rdev, "failed to set ramp_delay\n"); @@ -1238,7 +1243,7 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev, /* Internal regulator request function */ static struct regulator *_regulator_get(struct device *dev, const char *id, - int exclusive) + bool exclusive) { struct regulator_dev *rdev; struct regulator *regulator = ERR_PTR(-EPROBE_DEFER); @@ -1344,7 +1349,7 @@ out: */ struct regulator *regulator_get(struct device *dev, const char *id) { - return _regulator_get(dev, id, 0); + return _regulator_get(dev, id, false); } EXPORT_SYMBOL_GPL(regulator_get); @@ -1405,10 +1410,69 @@ EXPORT_SYMBOL_GPL(devm_regulator_get); */ struct regulator *regulator_get_exclusive(struct device *dev, const char *id) { - return _regulator_get(dev, id, 1); + return _regulator_get(dev, id, true); } EXPORT_SYMBOL_GPL(regulator_get_exclusive); +/** + * regulator_get_optional - obtain optional access to a regulator. + * @dev: device for regulator "consumer" + * @id: Supply name or regulator ID. + * + * Returns a struct regulator corresponding to the regulator producer, + * or IS_ERR() condition containing errno. Other consumers will be + * unable to obtain this reference is held and the use count for the + * regulator will be initialised to reflect the current state of the + * regulator. + * + * This is intended for use by consumers for devices which can have + * some supplies unconnected in normal use, such as some MMC devices. + * It can allow the regulator core to provide stub supplies for other + * supplies requested using normal regulator_get() calls without + * disrupting the operation of drivers that can handle absent + * supplies. + * + * Use of supply names configured via regulator_set_device_supply() is + * strongly encouraged. It is recommended that the supply name used + * should match the name used for the supply and/or the relevant + * device pins in the datasheet. + */ +struct regulator *regulator_get_optional(struct device *dev, const char *id) +{ + return _regulator_get(dev, id, 0); +} +EXPORT_SYMBOL_GPL(regulator_get_optional); + +/** + * devm_regulator_get_optional - Resource managed regulator_get_optional() + * @dev: device for regulator "consumer" + * @id: Supply name or regulator ID. + * + * Managed regulator_get_optional(). Regulators returned from this + * function are automatically regulator_put() on driver detach. See + * regulator_get_optional() for more information. + */ +struct regulator *devm_regulator_get_optional(struct device *dev, + const char *id) +{ + struct regulator **ptr, *regulator; + + ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + regulator = regulator_get_optional(dev, id); + if (!IS_ERR(regulator)) { + *ptr = regulator; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return regulator; +} +EXPORT_SYMBOL_GPL(devm_regulator_get_optional); + /* Locks held by regulator_put() */ static void _regulator_put(struct regulator *regulator) { @@ -1435,6 +1499,36 @@ static void _regulator_put(struct regulator *regulator) } /** + * devm_regulator_get_exclusive - Resource managed regulator_get_exclusive() + * @dev: device for regulator "consumer" + * @id: Supply name or regulator ID. + * + * Managed regulator_get_exclusive(). Regulators returned from this function + * are automatically regulator_put() on driver detach. See regulator_get() for + * more information. + */ +struct regulator *devm_regulator_get_exclusive(struct device *dev, + const char *id) +{ + struct regulator **ptr, *regulator; + + ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + regulator = _regulator_get(dev, id, 1); + if (!IS_ERR(regulator)) { + *ptr = regulator; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return regulator; +} +EXPORT_SYMBOL_GPL(devm_regulator_get_exclusive); + +/** * regulator_put - "free" the regulator source * @regulator: regulator source * @@ -1890,8 +1984,9 @@ int regulator_disable_deferred(struct regulator *regulator, int ms) rdev->deferred_disables++; mutex_unlock(&rdev->mutex); - ret = schedule_delayed_work(&rdev->disable_work, - msecs_to_jiffies(ms)); + ret = queue_delayed_work(system_power_efficient_wq, + &rdev->disable_work, + msecs_to_jiffies(ms)); if (ret < 0) return ret; else @@ -1899,77 +1994,6 @@ int regulator_disable_deferred(struct regulator *regulator, int ms) } EXPORT_SYMBOL_GPL(regulator_disable_deferred); -/** - * regulator_is_enabled_regmap - standard is_enabled() for regmap users - * - * @rdev: regulator to operate on - * - * Regulators that use regmap for their register I/O can set the - * enable_reg and enable_mask fields in their descriptor and then use - * this as their is_enabled operation, saving some code. - */ -int regulator_is_enabled_regmap(struct regulator_dev *rdev) -{ - unsigned int val; - int ret; - - ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); - if (ret != 0) - return ret; - - if (rdev->desc->enable_is_inverted) - return (val & rdev->desc->enable_mask) == 0; - else - return (val & rdev->desc->enable_mask) != 0; -} -EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap); - -/** - * regulator_enable_regmap - standard enable() for regmap users - * - * @rdev: regulator to operate on - * - * Regulators that use regmap for their register I/O can set the - * enable_reg and enable_mask fields in their descriptor and then use - * this as their enable() operation, saving some code. - */ -int regulator_enable_regmap(struct regulator_dev *rdev) -{ - unsigned int val; - - if (rdev->desc->enable_is_inverted) - val = 0; - else - val = rdev->desc->enable_mask; - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, val); -} -EXPORT_SYMBOL_GPL(regulator_enable_regmap); - -/** - * regulator_disable_regmap - standard disable() for regmap users - * - * @rdev: regulator to operate on - * - * Regulators that use regmap for their register I/O can set the - * enable_reg and enable_mask fields in their descriptor and then use - * this as their disable() operation, saving some code. - */ -int regulator_disable_regmap(struct regulator_dev *rdev) -{ - unsigned int val; - - if (rdev->desc->enable_is_inverted) - val = rdev->desc->enable_mask; - else - val = 0; - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, val); -} -EXPORT_SYMBOL_GPL(regulator_disable_regmap); - static int _regulator_is_enabled(struct regulator_dev *rdev) { /* A GPIO control always takes precedence */ @@ -2055,55 +2079,6 @@ int regulator_count_voltages(struct regulator *regulator) EXPORT_SYMBOL_GPL(regulator_count_voltages); /** - * regulator_list_voltage_linear - List voltages with simple calculation - * - * @rdev: Regulator device - * @selector: Selector to convert into a voltage - * - * Regulators with a simple linear mapping between voltages and - * selectors can set min_uV and uV_step in the regulator descriptor - * and then use this function as their list_voltage() operation, - */ -int regulator_list_voltage_linear(struct regulator_dev *rdev, - unsigned int selector) -{ - if (selector >= rdev->desc->n_voltages) - return -EINVAL; - if (selector < rdev->desc->linear_min_sel) - return 0; - - selector -= rdev->desc->linear_min_sel; - - return rdev->desc->min_uV + (rdev->desc->uV_step * selector); -} -EXPORT_SYMBOL_GPL(regulator_list_voltage_linear); - -/** - * regulator_list_voltage_table - List voltages with table based mapping - * - * @rdev: Regulator device - * @selector: Selector to convert into a voltage - * - * Regulators with table based mapping between voltages and - * selectors can set volt_table in the regulator descriptor - * and then use this function as their list_voltage() operation. - */ -int regulator_list_voltage_table(struct regulator_dev *rdev, - unsigned int selector) -{ - if (!rdev->desc->volt_table) { - BUG_ON(!rdev->desc->volt_table); - return -EINVAL; - } - - if (selector >= rdev->desc->n_voltages) - return -EINVAL; - - return rdev->desc->volt_table[selector]; -} -EXPORT_SYMBOL_GPL(regulator_list_voltage_table); - -/** * regulator_list_voltage - enumerate supported voltages * @regulator: regulator source * @selector: identify voltage to list @@ -2197,177 +2172,6 @@ int regulator_is_supported_voltage(struct regulator *regulator, } EXPORT_SYMBOL_GPL(regulator_is_supported_voltage); -/** - * regulator_get_voltage_sel_regmap - standard get_voltage_sel for regmap users - * - * @rdev: regulator to operate on - * - * Regulators that use regmap for their register I/O can set the - * vsel_reg and vsel_mask fields in their descriptor and then use this - * as their get_voltage_vsel operation, saving some code. - */ -int regulator_get_voltage_sel_regmap(struct regulator_dev *rdev) -{ - unsigned int val; - int ret; - - ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val); - if (ret != 0) - return ret; - - val &= rdev->desc->vsel_mask; - val >>= ffs(rdev->desc->vsel_mask) - 1; - - return val; -} -EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_regmap); - -/** - * regulator_set_voltage_sel_regmap - standard set_voltage_sel for regmap users - * - * @rdev: regulator to operate on - * @sel: Selector to set - * - * Regulators that use regmap for their register I/O can set the - * vsel_reg and vsel_mask fields in their descriptor and then use this - * as their set_voltage_vsel operation, saving some code. - */ -int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel) -{ - int ret; - - sel <<= ffs(rdev->desc->vsel_mask) - 1; - - ret = regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg, - rdev->desc->vsel_mask, sel); - if (ret) - return ret; - - if (rdev->desc->apply_bit) - ret = regmap_update_bits(rdev->regmap, rdev->desc->apply_reg, - rdev->desc->apply_bit, - rdev->desc->apply_bit); - return ret; -} -EXPORT_SYMBOL_GPL(regulator_set_voltage_sel_regmap); - -/** - * regulator_map_voltage_iterate - map_voltage() based on list_voltage() - * - * @rdev: Regulator to operate on - * @min_uV: Lower bound for voltage - * @max_uV: Upper bound for voltage - * - * Drivers implementing set_voltage_sel() and list_voltage() can use - * this as their map_voltage() operation. It will find a suitable - * voltage by calling list_voltage() until it gets something in bounds - * for the requested voltages. - */ -int regulator_map_voltage_iterate(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int best_val = INT_MAX; - int selector = 0; - int i, ret; - - /* Find the smallest voltage that falls within the specified - * range. - */ - for (i = 0; i < rdev->desc->n_voltages; i++) { - ret = rdev->desc->ops->list_voltage(rdev, i); - if (ret < 0) - continue; - - if (ret < best_val && ret >= min_uV && ret <= max_uV) { - best_val = ret; - selector = i; - } - } - - if (best_val != INT_MAX) - return selector; - else - return -EINVAL; -} -EXPORT_SYMBOL_GPL(regulator_map_voltage_iterate); - -/** - * regulator_map_voltage_ascend - map_voltage() for ascendant voltage list - * - * @rdev: Regulator to operate on - * @min_uV: Lower bound for voltage - * @max_uV: Upper bound for voltage - * - * Drivers that have ascendant voltage list can use this as their - * map_voltage() operation. - */ -int regulator_map_voltage_ascend(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int i, ret; - - for (i = 0; i < rdev->desc->n_voltages; i++) { - ret = rdev->desc->ops->list_voltage(rdev, i); - if (ret < 0) - continue; - - if (ret > max_uV) - break; - - if (ret >= min_uV && ret <= max_uV) - return i; - } - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(regulator_map_voltage_ascend); - -/** - * regulator_map_voltage_linear - map_voltage() for simple linear mappings - * - * @rdev: Regulator to operate on - * @min_uV: Lower bound for voltage - * @max_uV: Upper bound for voltage - * - * Drivers providing min_uV and uV_step in their regulator_desc can - * use this as their map_voltage() operation. - */ -int regulator_map_voltage_linear(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int ret, voltage; - - /* Allow uV_step to be 0 for fixed voltage */ - if (rdev->desc->n_voltages == 1 && rdev->desc->uV_step == 0) { - if (min_uV <= rdev->desc->min_uV && rdev->desc->min_uV <= max_uV) - return 0; - else - return -EINVAL; - } - - if (!rdev->desc->uV_step) { - BUG_ON(!rdev->desc->uV_step); - return -EINVAL; - } - - if (min_uV < rdev->desc->min_uV) - min_uV = rdev->desc->min_uV; - - ret = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step); - if (ret < 0) - return ret; - - ret += rdev->desc->linear_min_sel; - - /* Map back into a voltage to verify we're still in bounds */ - voltage = rdev->desc->ops->list_voltage(rdev, ret); - if (voltage < min_uV || voltage > max_uV) - return -EINVAL; - - return ret; -} -EXPORT_SYMBOL_GPL(regulator_map_voltage_linear); - static int _regulator_do_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { @@ -2438,8 +2242,8 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, } /* Call set_voltage_time_sel if successfully obtained old_selector */ - if (ret == 0 && _regulator_is_enabled(rdev) && old_selector >= 0 && - old_selector != selector && rdev->desc->ops->set_voltage_time_sel) { + if (ret == 0 && !rdev->constraints->ramp_disable && old_selector >= 0 + && old_selector != selector) { delay = rdev->desc->ops->set_voltage_time_sel(rdev, old_selector, selector); @@ -2971,47 +2775,6 @@ out: EXPORT_SYMBOL_GPL(regulator_set_optimum_mode); /** - * regulator_set_bypass_regmap - Default set_bypass() using regmap - * - * @rdev: device to operate on. - * @enable: state to set. - */ -int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable) -{ - unsigned int val; - - if (enable) - val = rdev->desc->bypass_mask; - else - val = 0; - - return regmap_update_bits(rdev->regmap, rdev->desc->bypass_reg, - rdev->desc->bypass_mask, val); -} -EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap); - -/** - * regulator_get_bypass_regmap - Default get_bypass() using regmap - * - * @rdev: device to operate on. - * @enable: current state. - */ -int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable) -{ - unsigned int val; - int ret; - - ret = regmap_read(rdev->regmap, rdev->desc->bypass_reg, &val); - if (ret != 0) - return ret; - - *enable = val & rdev->desc->bypass_mask; - - return 0; -} -EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap); - -/** * regulator_allow_bypass - allow the regulator to go into bypass mode * * @regulator: Regulator to configure @@ -3740,8 +3503,11 @@ void regulator_unregister(struct regulator_dev *rdev) if (rdev == NULL) return; - if (rdev->supply) + if (rdev->supply) { + while (rdev->use_count--) + regulator_disable(rdev->supply); regulator_put(rdev->supply); + } mutex_lock(®ulator_list_mutex); debugfs_remove_recursive(rdev->debugfs); flush_work(&rdev->disable_work.work); diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c index 2afa5730f324..f06854cf8cf5 100644 --- a/drivers/regulator/da903x.c +++ b/drivers/regulator/da903x.c @@ -252,39 +252,12 @@ static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev, return ret; } -static int da9034_map_ldo12_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - struct da903x_regulator_info *info = rdev_get_drvdata(rdev); - int sel; - - if (check_range(info, min_uV, max_uV)) { - pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); - return -EINVAL; - } - - sel = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step); - sel = (sel >= 20) ? sel - 12 : ((sel > 7) ? 8 : sel); - - return sel; -} - -static int da9034_list_ldo12_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - struct da903x_regulator_info *info = rdev_get_drvdata(rdev); - int volt; - - if (selector >= 8) - volt = 2700000 + rdev->desc->uV_step * (selector - 8); - else - volt = rdev->desc->min_uV + rdev->desc->uV_step * selector; - - if (volt > info->max_uV) - return -EINVAL; - - return volt; -} +static const struct regulator_linear_range da9034_ldo12_ranges[] = { + { .min_uV = 1700000, .max_uV = 2050000, .min_sel = 0, .max_sel = 7, + .uV_step = 50000 }, + { .min_uV = 2700000, .max_uV = 3050000, .min_sel = 8, .max_sel = 15, + .uV_step = 50000 }, +}; static struct regulator_ops da903x_regulator_ldo_ops = { .set_voltage_sel = da903x_set_voltage_sel, @@ -332,8 +305,8 @@ static struct regulator_ops da9034_regulator_dvc_ops = { static struct regulator_ops da9034_regulator_ldo12_ops = { .set_voltage_sel = da903x_set_voltage_sel, .get_voltage_sel = da903x_get_voltage_sel, - .list_voltage = da9034_list_ldo12_voltage, - .map_voltage = da9034_map_ldo12_voltage, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, .enable = da903x_enable, .disable = da903x_disable, .is_enabled = da903x_is_enabled, @@ -476,6 +449,8 @@ static int da903x_regulator_probe(struct platform_device *pdev) if (ri->desc.id == DA9034_ID_LDO12) { ri->desc.ops = &da9034_regulator_ldo12_ops; ri->desc.n_voltages = 16; + ri->desc.linear_ranges = da9034_ldo12_ranges; + ri->desc.n_linear_ranges = ARRAY_SIZE(da9034_ldo12_ranges); } if (ri->desc.id == DA9030_ID_LDO14) @@ -485,7 +460,7 @@ static int da903x_regulator_probe(struct platform_device *pdev) ri->desc.ops = &da9030_regulator_ldo1_15_ops; config.dev = &pdev->dev; - config.init_data = pdev->dev.platform_data; + config.init_data = dev_get_platdata(&pdev->dev); config.driver_data = ri; rdev = regulator_register(&ri->desc, &config); diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c index 96b569abb46c..1e4d483f6163 100644 --- a/drivers/regulator/da9052-regulator.c +++ b/drivers/regulator/da9052-regulator.c @@ -349,7 +349,7 @@ static int da9052_regulator_probe(struct platform_device *pdev) return -ENOMEM; da9052 = dev_get_drvdata(pdev->dev.parent); - pdata = da9052->dev->platform_data; + pdata = dev_get_platdata(da9052->dev); regulator->da9052 = da9052; regulator->info = find_regulator_info(regulator->da9052->chip_id, diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c index 30221099d09c..77b53e5a231c 100644 --- a/drivers/regulator/da9055-regulator.c +++ b/drivers/regulator/da9055-regulator.c @@ -535,7 +535,7 @@ static int da9055_regulator_probe(struct platform_device *pdev) struct regulator_config config = { }; struct da9055_regulator *regulator; struct da9055 *da9055 = dev_get_drvdata(pdev->dev.parent); - struct da9055_pdata *pdata = da9055->dev->platform_data; + struct da9055_pdata *pdata = dev_get_platdata(da9055->dev); int ret, irq; if (pdata == NULL || pdata->regulators[pdev->id] == NULL) diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c new file mode 100644 index 000000000000..1a7816390773 --- /dev/null +++ b/drivers/regulator/da9063-regulator.c @@ -0,0 +1,934 @@ +/* + * Regulator driver for DA9063 PMIC series + * + * Copyright 2012 Dialog Semiconductors Ltd. + * Copyright 2013 Philipp Zabel, Pengutronix + * + * Author: Krystian Garbaciak <krystian.garbaciak@diasemi.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/of_regulator.h> +#include <linux/mfd/da9063/core.h> +#include <linux/mfd/da9063/pdata.h> +#include <linux/mfd/da9063/registers.h> + + +/* Definition for registering regmap bit fields using a mask */ +#define BFIELD(_reg, _mask) \ + REG_FIELD(_reg, __builtin_ffs((int)_mask) - 1, \ + sizeof(unsigned int) * 8 - __builtin_clz((_mask)) - 1) + +/* Regulator capabilities and registers description */ +struct da9063_regulator_info { + struct regulator_desc desc; + + /* Current limiting */ + unsigned n_current_limits; + const int *current_limits; + + /* DA9063 main register fields */ + struct reg_field mode; /* buck mode of operation */ + struct reg_field suspend; + struct reg_field sleep; + struct reg_field suspend_sleep; + unsigned int suspend_vsel_reg; + struct reg_field ilimit; + + /* DA9063 event detection bit */ + struct reg_field oc_event; +}; + +/* Macros for LDO */ +#define DA9063_LDO(chip, regl_name, min_mV, step_mV, max_mV) \ + .desc.id = chip##_ID_##regl_name, \ + .desc.name = __stringify(chip##_##regl_name), \ + .desc.ops = &da9063_ldo_ops, \ + .desc.min_uV = (min_mV) * 1000, \ + .desc.uV_step = (step_mV) * 1000, \ + .desc.n_voltages = (((max_mV) - (min_mV))/(step_mV) + 1), \ + .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ + .desc.enable_mask = DA9063_LDO_EN, \ + .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ + .desc.vsel_mask = DA9063_V##regl_name##_MASK, \ + .desc.linear_min_sel = DA9063_V##regl_name##_BIAS, \ + .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_LDO_SL), \ + .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_LDO_SL), \ + .suspend_vsel_reg = DA9063_REG_V##regl_name##_B + +/* Macros for voltage DC/DC converters (BUCKs) */ +#define DA9063_BUCK(chip, regl_name, min_mV, step_mV, max_mV, limits_array) \ + .desc.id = chip##_ID_##regl_name, \ + .desc.name = __stringify(chip##_##regl_name), \ + .desc.ops = &da9063_buck_ops, \ + .desc.min_uV = (min_mV) * 1000, \ + .desc.uV_step = (step_mV) * 1000, \ + .desc.n_voltages = ((max_mV) - (min_mV))/(step_mV) + 1, \ + .current_limits = limits_array, \ + .n_current_limits = ARRAY_SIZE(limits_array) + +#define DA9063_BUCK_COMMON_FIELDS(regl_name) \ + .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ + .desc.enable_mask = DA9063_BUCK_EN, \ + .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ + .desc.vsel_mask = DA9063_VBUCK_MASK, \ + .desc.linear_min_sel = DA9063_VBUCK_BIAS, \ + .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_BUCK_SL), \ + .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_BUCK_SL), \ + .suspend_vsel_reg = DA9063_REG_V##regl_name##_B, \ + .mode = BFIELD(DA9063_REG_##regl_name##_CFG, DA9063_BUCK_MODE_MASK) + +/* Defines asignment of regulators info table to chip model */ +struct da9063_dev_model { + const struct da9063_regulator_info *regulator_info; + unsigned n_regulators; + unsigned dev_model; +}; + +/* Single regulator settings */ +struct da9063_regulator { + struct regulator_desc desc; + struct regulator_dev *rdev; + struct da9063 *hw; + const struct da9063_regulator_info *info; + + struct regmap_field *mode; + struct regmap_field *suspend; + struct regmap_field *sleep; + struct regmap_field *suspend_sleep; + struct regmap_field *ilimit; +}; + +/* Encapsulates all information for the regulators driver */ +struct da9063_regulators { + int irq_ldo_lim; + int irq_uvov; + + unsigned n_regulators; + /* Array size to be defined during init. Keep at end. */ + struct da9063_regulator regulator[0]; +}; + +/* BUCK modes for DA9063 */ +enum { + BUCK_MODE_MANUAL, /* 0 */ + BUCK_MODE_SLEEP, /* 1 */ + BUCK_MODE_SYNC, /* 2 */ + BUCK_MODE_AUTO /* 3 */ +}; + +/* Regulator operations */ + +/* Current limits array (in uA) for BCORE1, BCORE2, BPRO. + Entry indexes corresponds to register values. */ +static const int da9063_buck_a_limits[] = { + 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000, + 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000 +}; + +/* Current limits array (in uA) for BMEM, BIO, BPERI. + Entry indexes corresponds to register values. */ +static const int da9063_buck_b_limits[] = { + 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000, + 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000 +}; + +/* Current limits array (in uA) for merged BCORE1 and BCORE2. + Entry indexes corresponds to register values. */ +static const int da9063_bcores_merged_limits[] = { + 1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2200000, 2400000, + 2600000, 2800000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000 +}; + +/* Current limits array (in uA) for merged BMEM and BIO. + Entry indexes corresponds to register values. */ +static const int da9063_bmem_bio_merged_limits[] = { + 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, + 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000 +}; + +static int da9063_set_current_limit(struct regulator_dev *rdev, + int min_uA, int max_uA) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + const struct da9063_regulator_info *rinfo = regl->info; + int n, tval; + + for (n = 0; n < rinfo->n_current_limits; n++) { + tval = rinfo->current_limits[n]; + if (tval >= min_uA && tval <= max_uA) + return regmap_field_write(regl->ilimit, n); + } + + return -EINVAL; +} + +static int da9063_get_current_limit(struct regulator_dev *rdev) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + const struct da9063_regulator_info *rinfo = regl->info; + unsigned int sel; + int ret; + + ret = regmap_field_read(regl->ilimit, &sel); + if (ret < 0) + return ret; + + if (sel >= rinfo->n_current_limits) + sel = rinfo->n_current_limits - 1; + + return rinfo->current_limits[sel]; +} + +static int da9063_buck_set_mode(struct regulator_dev *rdev, unsigned mode) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + unsigned val; + + switch (mode) { + case REGULATOR_MODE_FAST: + val = BUCK_MODE_SYNC; + break; + case REGULATOR_MODE_NORMAL: + val = BUCK_MODE_AUTO; + break; + case REGULATOR_MODE_STANDBY: + val = BUCK_MODE_SLEEP; + break; + default: + return -EINVAL; + } + + return regmap_field_write(regl->mode, val); +} + +/* + * Bucks use single mode register field for normal operation + * and suspend state. + * There are 3 modes to map to: FAST, NORMAL, and STANDBY. + */ + +static unsigned da9063_buck_get_mode(struct regulator_dev *rdev) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + struct regmap_field *field; + unsigned int val, mode = 0; + int ret; + + ret = regmap_field_read(regl->mode, &val); + if (ret < 0) + return ret; + + switch (val) { + default: + case BUCK_MODE_MANUAL: + mode = REGULATOR_MODE_FAST | REGULATOR_MODE_STANDBY; + /* Sleep flag bit decides the mode */ + break; + case BUCK_MODE_SLEEP: + return REGULATOR_MODE_STANDBY; + case BUCK_MODE_SYNC: + return REGULATOR_MODE_FAST; + case BUCK_MODE_AUTO: + return REGULATOR_MODE_NORMAL; + } + + /* Detect current regulator state */ + ret = regmap_field_read(regl->suspend, &val); + if (ret < 0) + return 0; + + /* Read regulator mode from proper register, depending on state */ + if (val) + field = regl->suspend_sleep; + else + field = regl->sleep; + + ret = regmap_field_read(field, &val); + if (ret < 0) + return 0; + + if (val) + mode &= REGULATOR_MODE_STANDBY; + else + mode &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_FAST; + + return mode; +} + +/* + * LDOs use sleep flags - one for normal and one for suspend state. + * There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state. + */ + +static int da9063_ldo_set_mode(struct regulator_dev *rdev, unsigned mode) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + unsigned val; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + val = 0; + break; + case REGULATOR_MODE_STANDBY: + val = 1; + break; + default: + return -EINVAL; + } + + return regmap_field_write(regl->sleep, val); +} + +static unsigned da9063_ldo_get_mode(struct regulator_dev *rdev) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + struct regmap_field *field; + int ret, val; + + /* Detect current regulator state */ + ret = regmap_field_read(regl->suspend, &val); + if (ret < 0) + return 0; + + /* Read regulator mode from proper register, depending on state */ + if (val) + field = regl->suspend_sleep; + else + field = regl->sleep; + + ret = regmap_field_read(field, &val); + if (ret < 0) + return 0; + + if (val) + return REGULATOR_MODE_STANDBY; + else + return REGULATOR_MODE_NORMAL; +} + +static int da9063_buck_get_status(struct regulator_dev *rdev) +{ + int ret = regulator_is_enabled_regmap(rdev); + + if (ret == 0) { + ret = REGULATOR_STATUS_OFF; + } else if (ret > 0) { + ret = da9063_buck_get_mode(rdev); + if (ret > 0) + ret = regulator_mode_to_status(ret); + else if (ret == 0) + ret = -EIO; + } + + return ret; +} + +static int da9063_ldo_get_status(struct regulator_dev *rdev) +{ + int ret = regulator_is_enabled_regmap(rdev); + + if (ret == 0) { + ret = REGULATOR_STATUS_OFF; + } else if (ret > 0) { + ret = da9063_ldo_get_mode(rdev); + if (ret > 0) + ret = regulator_mode_to_status(ret); + else if (ret == 0) + ret = -EIO; + } + + return ret; +} + +static int da9063_set_suspend_voltage(struct regulator_dev *rdev, int uV) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + const struct da9063_regulator_info *rinfo = regl->info; + int ret, sel; + + sel = regulator_map_voltage_linear(rdev, uV, uV); + if (sel < 0) + return -EINVAL; + + sel <<= ffs(rdev->desc->vsel_mask) - 1; + + ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg, + rdev->desc->vsel_mask, sel); + + return ret; +} + +static int da9063_suspend_enable(struct regulator_dev *rdev) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + + return regmap_field_write(regl->suspend, 1); +} + +static int da9063_suspend_disable(struct regulator_dev *rdev) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + + return regmap_field_write(regl->suspend, 0); +} + +static int da9063_buck_set_suspend_mode(struct regulator_dev *rdev, unsigned mode) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + int val; + + switch (mode) { + case REGULATOR_MODE_FAST: + val = BUCK_MODE_SYNC; + break; + case REGULATOR_MODE_NORMAL: + val = BUCK_MODE_AUTO; + break; + case REGULATOR_MODE_STANDBY: + val = BUCK_MODE_SLEEP; + break; + default: + return -EINVAL; + } + + return regmap_field_write(regl->mode, val); +} + +static int da9063_ldo_set_suspend_mode(struct regulator_dev *rdev, unsigned mode) +{ + struct da9063_regulator *regl = rdev_get_drvdata(rdev); + unsigned val; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + val = 0; + break; + case REGULATOR_MODE_STANDBY: + val = 1; + break; + default: + return -EINVAL; + } + + return regmap_field_write(regl->suspend_sleep, val); +} + +static struct regulator_ops da9063_buck_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .set_current_limit = da9063_set_current_limit, + .get_current_limit = da9063_get_current_limit, + .set_mode = da9063_buck_set_mode, + .get_mode = da9063_buck_get_mode, + .get_status = da9063_buck_get_status, + .set_suspend_voltage = da9063_set_suspend_voltage, + .set_suspend_enable = da9063_suspend_enable, + .set_suspend_disable = da9063_suspend_disable, + .set_suspend_mode = da9063_buck_set_suspend_mode, +}; + +static struct regulator_ops da9063_ldo_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .set_mode = da9063_ldo_set_mode, + .get_mode = da9063_ldo_get_mode, + .get_status = da9063_ldo_get_status, + .set_suspend_voltage = da9063_set_suspend_voltage, + .set_suspend_enable = da9063_suspend_enable, + .set_suspend_disable = da9063_suspend_disable, + .set_suspend_mode = da9063_ldo_set_suspend_mode, +}; + +/* Info of regulators for DA9063 */ +static const struct da9063_regulator_info da9063_regulator_info[] = { + { + DA9063_BUCK(DA9063, BCORE1, 300, 10, 1570, + da9063_buck_a_limits), + DA9063_BUCK_COMMON_FIELDS(BCORE1), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE1_SEL), + .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_C, + DA9063_BCORE1_ILIM_MASK), + }, + { + DA9063_BUCK(DA9063, BCORE2, 300, 10, 1570, + da9063_buck_a_limits), + DA9063_BUCK_COMMON_FIELDS(BCORE2), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE2_SEL), + .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_C, + DA9063_BCORE2_ILIM_MASK), + }, + { + DA9063_BUCK(DA9063, BPRO, 530, 10, 1800, + da9063_buck_a_limits), + DA9063_BUCK_COMMON_FIELDS(BPRO), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBPRO_SEL), + .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_B, + DA9063_BPRO_ILIM_MASK), + }, + { + DA9063_BUCK(DA9063, BMEM, 800, 20, 3340, + da9063_buck_b_limits), + DA9063_BUCK_COMMON_FIELDS(BMEM), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBMEM_SEL), + .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_A, + DA9063_BMEM_ILIM_MASK), + }, + { + DA9063_BUCK(DA9063, BIO, 800, 20, 3340, + da9063_buck_b_limits), + DA9063_BUCK_COMMON_FIELDS(BIO), + .suspend = BFIELD(DA9063_REG_DVC_2, DA9063_VBIO_SEL), + .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_A, + DA9063_BIO_ILIM_MASK), + }, + { + DA9063_BUCK(DA9063, BPERI, 800, 20, 3340, + da9063_buck_b_limits), + DA9063_BUCK_COMMON_FIELDS(BPERI), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBPERI_SEL), + .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_B, + DA9063_BPERI_ILIM_MASK), + }, + { + DA9063_BUCK(DA9063, BCORES_MERGED, 300, 10, 1570, + da9063_bcores_merged_limits), + /* BCORES_MERGED uses the same register fields as BCORE1 */ + DA9063_BUCK_COMMON_FIELDS(BCORE1), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE1_SEL), + .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_C, + DA9063_BCORE1_ILIM_MASK), + }, + { + DA9063_BUCK(DA9063, BMEM_BIO_MERGED, 800, 20, 3340, + da9063_bmem_bio_merged_limits), + /* BMEM_BIO_MERGED uses the same register fields as BMEM */ + DA9063_BUCK_COMMON_FIELDS(BMEM), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBMEM_SEL), + .ilimit = BFIELD(DA9063_REG_BUCK_ILIM_A, + DA9063_BMEM_ILIM_MASK), + }, + { + DA9063_LDO(DA9063, LDO1, 600, 20, 1860), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO1_SEL), + }, + { + DA9063_LDO(DA9063, LDO2, 600, 20, 1860), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO2_SEL), + }, + { + DA9063_LDO(DA9063, LDO3, 900, 20, 3440), + .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO3_SEL), + .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO3_LIM), + }, + { + DA9063_LDO(DA9063, LDO4, 900, 20, 3440), + .suspend = BFIELD(DA9063_REG_DVC_2, DA9063_VLDO4_SEL), + .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO4_LIM), + }, + { + DA9063_LDO(DA9063, LDO5, 900, 50, 3600), + .suspend = BFIELD(DA9063_REG_LDO5_CONT, DA9063_VLDO5_SEL), + }, + { + DA9063_LDO(DA9063, LDO6, 900, 50, 3600), + .suspend = BFIELD(DA9063_REG_LDO6_CONT, DA9063_VLDO6_SEL), + }, + { + DA9063_LDO(DA9063, LDO7, 900, 50, 3600), + .suspend = BFIELD(DA9063_REG_LDO7_CONT, DA9063_VLDO7_SEL), + .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO7_LIM), + }, + { + DA9063_LDO(DA9063, LDO8, 900, 50, 3600), + .suspend = BFIELD(DA9063_REG_LDO8_CONT, DA9063_VLDO8_SEL), + .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO8_LIM), + }, + { + DA9063_LDO(DA9063, LDO9, 950, 50, 3600), + .suspend = BFIELD(DA9063_REG_LDO9_CONT, DA9063_VLDO9_SEL), + }, + { + DA9063_LDO(DA9063, LDO10, 900, 50, 3600), + .suspend = BFIELD(DA9063_REG_LDO10_CONT, DA9063_VLDO10_SEL), + }, + { + DA9063_LDO(DA9063, LDO11, 900, 50, 3600), + .suspend = BFIELD(DA9063_REG_LDO11_CONT, DA9063_VLDO11_SEL), + .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO11_LIM), + }, +}; + +/* Link chip model with regulators info table */ +static struct da9063_dev_model regulators_models[] = { + { + .regulator_info = da9063_regulator_info, + .n_regulators = ARRAY_SIZE(da9063_regulator_info), + .dev_model = PMIC_DA9063, + }, + { } +}; + +/* Regulator interrupt handlers */ +static irqreturn_t da9063_ldo_lim_event(int irq, void *data) +{ + struct da9063_regulators *regulators = data; + struct da9063 *hw = regulators->regulator[0].hw; + struct da9063_regulator *regl; + int bits, i , ret; + + ret = regmap_read(hw->regmap, DA9063_REG_STATUS_D, &bits); + if (ret < 0) + return IRQ_NONE; + + for (i = regulators->n_regulators - 1; i >= 0; i--) { + regl = ®ulators->regulator[i]; + if (regl->info->oc_event.reg != DA9063_REG_STATUS_D) + continue; + + if (BIT(regl->info->oc_event.lsb) & bits) + regulator_notifier_call_chain(regl->rdev, + REGULATOR_EVENT_OVER_CURRENT, NULL); + } + + return IRQ_HANDLED; +} + +/* + * Probing and Initialisation functions + */ +static const struct regulator_init_data *da9063_get_regulator_initdata( + const struct da9063_regulators_pdata *regl_pdata, int id) +{ + int i; + + for (i = 0; i < regl_pdata->n_regulators; i++) { + if (id == regl_pdata->regulator_data[i].id) + return regl_pdata->regulator_data[i].initdata; + } + + return NULL; +} + +#ifdef CONFIG_OF +static struct of_regulator_match da9063_matches[] = { + [DA9063_ID_BCORE1] = { .name = "bcore1" }, + [DA9063_ID_BCORE2] = { .name = "bcore2" }, + [DA9063_ID_BPRO] = { .name = "bpro", }, + [DA9063_ID_BMEM] = { .name = "bmem", }, + [DA9063_ID_BIO] = { .name = "bio", }, + [DA9063_ID_BPERI] = { .name = "bperi", }, + [DA9063_ID_BCORES_MERGED] = { .name = "bcores-merged" }, + [DA9063_ID_BMEM_BIO_MERGED] = { .name = "bmem-bio-merged", }, + [DA9063_ID_LDO1] = { .name = "ldo1", }, + [DA9063_ID_LDO2] = { .name = "ldo2", }, + [DA9063_ID_LDO3] = { .name = "ldo3", }, + [DA9063_ID_LDO4] = { .name = "ldo4", }, + [DA9063_ID_LDO5] = { .name = "ldo5", }, + [DA9063_ID_LDO6] = { .name = "ldo6", }, + [DA9063_ID_LDO7] = { .name = "ldo7", }, + [DA9063_ID_LDO8] = { .name = "ldo8", }, + [DA9063_ID_LDO9] = { .name = "ldo9", }, + [DA9063_ID_LDO10] = { .name = "ldo10", }, + [DA9063_ID_LDO11] = { .name = "ldo11", }, +}; + +static struct da9063_regulators_pdata *da9063_parse_regulators_dt( + struct platform_device *pdev, + struct of_regulator_match **da9063_reg_matches) +{ + struct da9063_regulators_pdata *pdata; + struct da9063_regulator_data *rdata; + struct device_node *node; + int i, n, num; + + node = of_find_node_by_name(pdev->dev.parent->of_node, "regulators"); + if (!node) { + dev_err(&pdev->dev, "Regulators device node not found\n"); + return ERR_PTR(-ENODEV); + } + + num = of_regulator_match(&pdev->dev, node, da9063_matches, + ARRAY_SIZE(da9063_matches)); + if (num < 0) { + dev_err(&pdev->dev, "Failed to match regulators\n"); + return ERR_PTR(-EINVAL); + } + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + pdata->regulator_data = devm_kzalloc(&pdev->dev, + num * sizeof(*pdata->regulator_data), + GFP_KERNEL); + if (!pdata->regulator_data) + return ERR_PTR(-ENOMEM); + pdata->n_regulators = num; + + n = 0; + for (i = 0; i < ARRAY_SIZE(da9063_matches); i++) { + if (!da9063_matches[i].init_data) + continue; + + rdata = &pdata->regulator_data[n]; + rdata->id = i; + rdata->initdata = da9063_matches[i].init_data; + + n++; + }; + + *da9063_reg_matches = da9063_matches; + return pdata; +} +#else +static struct da9063_regulators_pdata *da9063_parse_regulators_dt( + struct platform_device *pdev, + struct of_regulator_match **da9063_reg_matches) +{ + da9063_reg_matches = NULL; + return PTR_ERR(-ENODEV); +} +#endif + +static int da9063_regulator_probe(struct platform_device *pdev) +{ + struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent); + struct da9063_pdata *da9063_pdata = dev_get_platdata(da9063->dev); + struct of_regulator_match *da9063_reg_matches; + struct da9063_regulators_pdata *regl_pdata; + const struct da9063_dev_model *model; + struct da9063_regulators *regulators; + struct da9063_regulator *regl; + struct regulator_config config; + bool bcores_merged, bmem_bio_merged; + int id, irq, n, n_regulators, ret, val; + size_t size; + + regl_pdata = da9063_pdata ? da9063_pdata->regulators_pdata : NULL; + + if (!regl_pdata) + regl_pdata = da9063_parse_regulators_dt(pdev, + &da9063_reg_matches); + + if (IS_ERR(regl_pdata) || regl_pdata->n_regulators == 0) { + dev_err(&pdev->dev, + "No regulators defined for the platform\n"); + return PTR_ERR(regl_pdata); + } + + /* Find regulators set for particular device model */ + for (model = regulators_models; model->regulator_info; model++) { + if (model->dev_model == da9063->model) + break; + } + if (!model->regulator_info) { + dev_err(&pdev->dev, "Chip model not recognised (%u)\n", + da9063->model); + return -ENODEV; + } + + ret = regmap_read(da9063->regmap, DA9063_REG_CONFIG_H, &val); + if (ret < 0) { + dev_err(&pdev->dev, + "Error while reading BUCKs configuration\n"); + return -EIO; + } + bcores_merged = val & DA9063_BCORE_MERGE; + bmem_bio_merged = val & DA9063_BUCK_MERGE; + + n_regulators = model->n_regulators; + if (bcores_merged) + n_regulators -= 2; /* remove BCORE1, BCORE2 */ + else + n_regulators--; /* remove BCORES_MERGED */ + if (bmem_bio_merged) + n_regulators -= 2; /* remove BMEM, BIO */ + else + n_regulators--; /* remove BMEM_BIO_MERGED */ + + /* Allocate memory required by usable regulators */ + size = sizeof(struct da9063_regulators) + + n_regulators * sizeof(struct da9063_regulator); + regulators = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); + if (!regulators) { + dev_err(&pdev->dev, "No memory for regulators\n"); + return -ENOMEM; + } + + regulators->n_regulators = n_regulators; + platform_set_drvdata(pdev, regulators); + + /* Register all regulators declared in platform information */ + n = 0; + id = 0; + while (n < regulators->n_regulators) { + /* Skip regulator IDs depending on merge mode configuration */ + switch (id) { + case DA9063_ID_BCORE1: + case DA9063_ID_BCORE2: + if (bcores_merged) { + id++; + continue; + } + break; + case DA9063_ID_BMEM: + case DA9063_ID_BIO: + if (bmem_bio_merged) { + id++; + continue; + } + break; + case DA9063_ID_BCORES_MERGED: + if (!bcores_merged) { + id++; + continue; + } + break; + case DA9063_ID_BMEM_BIO_MERGED: + if (!bmem_bio_merged) { + id++; + continue; + } + break; + } + + /* Initialise regulator structure */ + regl = ®ulators->regulator[n]; + regl->hw = da9063; + regl->info = &model->regulator_info[id]; + regl->desc = regl->info->desc; + regl->desc.type = REGULATOR_VOLTAGE; + regl->desc.owner = THIS_MODULE; + + if (regl->info->mode.reg) + regl->mode = devm_regmap_field_alloc(&pdev->dev, + da9063->regmap, regl->info->mode); + if (regl->info->suspend.reg) + regl->suspend = devm_regmap_field_alloc(&pdev->dev, + da9063->regmap, regl->info->suspend); + if (regl->info->sleep.reg) + regl->sleep = devm_regmap_field_alloc(&pdev->dev, + da9063->regmap, regl->info->sleep); + if (regl->info->suspend_sleep.reg) + regl->suspend_sleep = devm_regmap_field_alloc(&pdev->dev, + da9063->regmap, regl->info->suspend_sleep); + if (regl->info->ilimit.reg) + regl->ilimit = devm_regmap_field_alloc(&pdev->dev, + da9063->regmap, regl->info->ilimit); + + /* Register regulator */ + memset(&config, 0, sizeof(config)); + config.dev = &pdev->dev; + config.init_data = da9063_get_regulator_initdata(regl_pdata, id); + config.driver_data = regl; + if (da9063_reg_matches) + config.of_node = da9063_reg_matches[id].of_node; + config.regmap = da9063->regmap; + regl->rdev = regulator_register(®l->desc, &config); + if (IS_ERR(regl->rdev)) { + dev_err(&pdev->dev, + "Failed to register %s regulator\n", + regl->desc.name); + ret = PTR_ERR(regl->rdev); + goto err; + } + id++; + n++; + } + + /* LDOs overcurrent event support */ + irq = platform_get_irq_byname(pdev, "LDO_LIM"); + if (irq < 0) { + ret = irq; + dev_err(&pdev->dev, "Failed to get IRQ.\n"); + goto err; + } + + regulators->irq_ldo_lim = regmap_irq_get_virq(da9063->regmap_irq, irq); + if (regulators->irq_ldo_lim >= 0) { + ret = request_threaded_irq(regulators->irq_ldo_lim, + NULL, da9063_ldo_lim_event, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "LDO_LIM", regulators); + if (ret) { + dev_err(&pdev->dev, + "Failed to request LDO_LIM IRQ.\n"); + regulators->irq_ldo_lim = -ENXIO; + } + } + + return 0; + +err: + /* Wind back regulators registeration */ + while (--n >= 0) + regulator_unregister(regulators->regulator[n].rdev); + + return ret; +} + +static int da9063_regulator_remove(struct platform_device *pdev) +{ + struct da9063_regulators *regulators = platform_get_drvdata(pdev); + struct da9063_regulator *regl; + + free_irq(regulators->irq_ldo_lim, regulators); + free_irq(regulators->irq_uvov, regulators); + + for (regl = ®ulators->regulator[regulators->n_regulators - 1]; + regl >= ®ulators->regulator[0]; regl--) + regulator_unregister(regl->rdev); + + return 0; +} + +static struct platform_driver da9063_regulator_driver = { + .driver = { + .name = DA9063_DRVNAME_REGULATORS, + .owner = THIS_MODULE, + }, + .probe = da9063_regulator_probe, + .remove = da9063_regulator_remove, +}; + +static int __init da9063_regulator_init(void) +{ + return platform_driver_register(&da9063_regulator_driver); +} +subsys_initcall(da9063_regulator_init); + +static void __exit da9063_regulator_cleanup(void) +{ + platform_driver_unregister(&da9063_regulator_driver); +} +module_exit(da9063_regulator_cleanup); + + +/* Module information */ +MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>"); +MODULE_DESCRIPTION("DA9063 regulators driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("paltform:" DA9063_DRVNAME_REGULATORS); diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c new file mode 100644 index 000000000000..f0fe54b38977 --- /dev/null +++ b/drivers/regulator/da9210-regulator.c @@ -0,0 +1,196 @@ +/* + * da9210-regulator.c - Regulator device driver for DA9210 + * Copyright (C) 2013 Dialog Semiconductor Ltd. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> +#include <linux/regmap.h> + +#include "da9210-regulator.h" + +struct da9210 { + struct regulator_dev *rdev; + struct regmap *regmap; +}; + +static const struct regmap_config da9210_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int da9210_set_current_limit(struct regulator_dev *rdev, int min_uA, + int max_uA); +static int da9210_get_current_limit(struct regulator_dev *rdev); + +static struct regulator_ops da9210_buck_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .set_current_limit = da9210_set_current_limit, + .get_current_limit = da9210_get_current_limit, +}; + +/* Default limits measured in millivolts and milliamps */ +#define DA9210_MIN_MV 300 +#define DA9210_MAX_MV 1570 +#define DA9210_STEP_MV 10 + +/* Current limits for buck (uA) indices corresponds with register values */ +static const int da9210_buck_limits[] = { + 1600000, 1800000, 2000000, 2200000, 2400000, 2600000, 2800000, 3000000, + 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, 4600000 +}; + +static const struct regulator_desc da9210_reg = { + .name = "DA9210", + .id = 0, + .ops = &da9210_buck_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = ((DA9210_MAX_MV - DA9210_MIN_MV) / DA9210_STEP_MV) + 1, + .min_uV = (DA9210_MIN_MV * 1000), + .uV_step = (DA9210_STEP_MV * 1000), + .vsel_reg = DA9210_REG_VBUCK_A, + .vsel_mask = DA9210_VBUCK_MASK, + .enable_reg = DA9210_REG_BUCK_CONT, + .enable_mask = DA9210_BUCK_EN, + .owner = THIS_MODULE, +}; + +static int da9210_set_current_limit(struct regulator_dev *rdev, int min_uA, + int max_uA) +{ + struct da9210 *chip = rdev_get_drvdata(rdev); + unsigned int sel; + int i; + + /* search for closest to maximum */ + for (i = ARRAY_SIZE(da9210_buck_limits)-1; i >= 0; i--) { + if (min_uA <= da9210_buck_limits[i] && + max_uA >= da9210_buck_limits[i]) { + sel = i; + sel = sel << DA9210_BUCK_ILIM_SHIFT; + return regmap_update_bits(chip->regmap, + DA9210_REG_BUCK_ILIM, + DA9210_BUCK_ILIM_MASK, sel); + } + } + + return -EINVAL; +} + +static int da9210_get_current_limit(struct regulator_dev *rdev) +{ + struct da9210 *chip = rdev_get_drvdata(rdev); + unsigned int data; + unsigned int sel; + int ret; + + ret = regmap_read(chip->regmap, DA9210_REG_BUCK_ILIM, &data); + if (ret < 0) + return ret; + + /* select one of 16 values: 0000 (1600mA) to 1111 (4600mA) */ + sel = (data & DA9210_BUCK_ILIM_MASK) >> DA9210_BUCK_ILIM_SHIFT; + + return da9210_buck_limits[sel]; +} + +/* + * I2C driver interface functions + */ +static int da9210_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct da9210 *chip; + struct da9210_pdata *pdata = i2c->dev.platform_data; + struct regulator_dev *rdev = NULL; + struct regulator_config config = { }; + int error; + + chip = devm_kzalloc(&i2c->dev, sizeof(struct da9210), GFP_KERNEL); + if (NULL == chip) { + dev_err(&i2c->dev, + "Cannot kzalloc memory for regulator structure\n"); + return -ENOMEM; + } + + chip->regmap = devm_regmap_init_i2c(i2c, &da9210_regmap_config); + if (IS_ERR(chip->regmap)) { + error = PTR_ERR(chip->regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + error); + return error; + } + + config.dev = &i2c->dev; + if (pdata) + config.init_data = &pdata->da9210_constraints; + config.driver_data = chip; + config.regmap = chip->regmap; + + rdev = regulator_register(&da9210_reg, &config); + if (IS_ERR(rdev)) { + dev_err(&i2c->dev, "Failed to register DA9210 regulator\n"); + return PTR_ERR(rdev); + } + + chip->rdev = rdev; + + i2c_set_clientdata(i2c, chip); + + return 0; +} + +static int da9210_i2c_remove(struct i2c_client *i2c) +{ + struct da9210 *chip = i2c_get_clientdata(i2c); + regulator_unregister(chip->rdev); + return 0; +} + +static const struct i2c_device_id da9210_i2c_id[] = { + {"da9210", 0}, + {}, +}; + +MODULE_DEVICE_TABLE(i2c, da9210_i2c_id); + +static struct i2c_driver da9210_regulator_driver = { + .driver = { + .name = "da9210", + .owner = THIS_MODULE, + }, + .probe = da9210_i2c_probe, + .remove = da9210_i2c_remove, + .id_table = da9210_i2c_id, +}; + +module_i2c_driver(da9210_regulator_driver); + +MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>"); +MODULE_DESCRIPTION("Regulator device driver for Dialog DA9210"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/regulator/da9210-regulator.h b/drivers/regulator/da9210-regulator.h new file mode 100644 index 000000000000..749c550808b6 --- /dev/null +++ b/drivers/regulator/da9210-regulator.h @@ -0,0 +1,288 @@ + +/* + * da9210-regulator.h - Regulator definitions for DA9210 + * Copyright (C) 2013 Dialog Semiconductor Ltd. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#ifndef __DA9210_REGISTERS_H__ +#define __DA9210_REGISTERS_H__ + +struct da9210_pdata { + struct regulator_init_data da9210_constraints; +}; + +/* Page selection */ +#define DA9210_REG_PAGE_CON 0x00 + +/* System Control and Event Registers */ +#define DA9210_REG_STATUS_A 0x50 +#define DA9210_REG_STATUS_B 0x51 +#define DA9210_REG_EVENT_A 0x52 +#define DA9210_REG_EVENT_B 0x53 +#define DA9210_REG_MASK_A 0x54 +#define DA9210_REG_MASK_B 0x55 +#define DA9210_REG_CONTROL_A 0x56 + +/* GPIO Control Registers */ +#define DA9210_REG_GPIO_0_1 0x58 +#define DA9210_REG_GPIO_2_3 0x59 +#define DA9210_REG_GPIO_4_5 0x5A +#define DA9210_REG_GPIO_6 0x5B + +/* Regulator Registers */ +#define DA9210_REG_BUCK_CONT 0x5D +#define DA9210_REG_BUCK_ILIM 0xD0 +#define DA9210_REG_BUCK_CONF1 0xD1 +#define DA9210_REG_BUCK_CONF2 0xD2 +#define DA9210_REG_VBACK_AUTO 0xD4 +#define DA9210_REG_VBACK_BASE 0xD5 +#define DA9210_REG_VBACK_MAX_DVC_IF 0xD6 +#define DA9210_REG_VBACK_DVC 0xD7 +#define DA9210_REG_VBUCK_A 0xD8 +#define DA9210_REG_VBUCK_B 0xD9 + +/* I2C Interface Settings */ +#define DA9210_REG_INTERFACE 0x105 + +/* OTP */ +#define DA9210_REG_OPT_COUNT 0x140 +#define DA9210_REG_OPT_ADDR 0x141 +#define DA9210_REG_OPT_DATA 0x142 + +/* Customer Trim and Configuration */ +#define DA9210_REG_CONFIG_A 0x143 +#define DA9210_REG_CONFIG_B 0x144 +#define DA9210_REG_CONFIG_C 0x145 +#define DA9210_REG_CONFIG_D 0x146 +#define DA9210_REG_CONFIG_E 0x147 + + +/* + * Registers bits + */ +/* DA9210_REG_PAGE_CON (addr=0x00) */ +#define DA9210_PEG_PAGE_SHIFT 0 +#define DA9210_REG_PAGE_MASK 0x0F +/* On I2C registers 0x00 - 0xFF */ +#define DA9210_REG_PAGE0 0 +/* On I2C registers 0x100 - 0x1FF */ +#define DA9210_REG_PAGE2 2 +#define DA9210_PAGE_WRITE_MODE 0x00 +#define DA9210_REPEAT_WRITE_MODE 0x40 +#define DA9210_PAGE_REVERT 0x80 + +/* DA9210_REG_STATUS_A (addr=0x50) */ +#define DA9210_GPI0 0x01 +#define DA9210_GPI1 0x02 +#define DA9210_GPI2 0x04 +#define DA9210_GPI3 0x08 +#define DA9210_GPI4 0x10 +#define DA9210_GPI5 0x20 +#define DA9210_GPI6 0x40 + +/* DA9210_REG_EVENT_A (addr=0x52) */ +#define DA9210_E_GPI0 0x01 +#define DA9210_E_GPI1 0x02 +#define DA9210_E_GPI2 0x04 +#define DA9210_E_GPI3 0x08 +#define DA9210_E_GPI4 0x10 +#define DA9210_E_GPI5 0x20 +#define DA9210_E_GPI6 0x40 + +/* DA9210_REG_EVENT_B (addr=0x53) */ +#define DA9210_E_OVCURR 0x01 +#define DA9210_E_NPWRGOOD 0x02 +#define DA9210_E_TEMP_WARN 0x04 +#define DA9210_E_TEMP_CRIT 0x08 +#define DA9210_E_VMAX 0x10 + +/* DA9210_REG_MASK_A (addr=0x54) */ +#define DA9210_M_GPI0 0x01 +#define DA9210_M_GPI1 0x02 +#define DA9210_M_GPI2 0x04 +#define DA9210_M_GPI3 0x08 +#define DA9210_M_GPI4 0x10 +#define DA9210_M_GPI5 0x20 +#define DA9210_M_GPI6 0x40 + +/* DA9210_REG_MASK_B (addr=0x55) */ +#define DA9210_M_OVCURR 0x01 +#define DA9210_M_NPWRGOOD 0x02 +#define DA9210_M_TEMP_WARN 0x04 +#define DA9210_M_TEMP_CRIT 0x08 +#define DA9210_M_VMAX 0x10 + +/* DA9210_REG_CONTROL_A (addr=0x56) */ +#define DA9210_DEBOUNCING_SHIFT 0 +#define DA9210_DEBOUNCING_MASK 0x07 +#define DA9210_SLEW_RATE_SHIFT 3 +#define DA9210_SLEW_RATE_MASK 0x18 +#define DA9210_V_LOCK 0x20 + +/* DA9210_REG_GPIO_0_1 (addr=0x58) */ +#define DA9210_GPIO0_PIN_SHIFT 0 +#define DA9210_GPIO0_PIN_MASK 0x03 +#define DA9210_GPIO0_PIN_GPI 0x00 +#define DA9210_GPIO0_PIN_GPO_OD 0x02 +#define DA9210_GPIO0_PIN_GPO 0x03 +#define DA9210_GPIO0_TYPE 0x04 +#define DA9210_GPIO0_TYPE_GPI 0x00 +#define DA9210_GPIO0_TYPE_GPO 0x04 +#define DA9210_GPIO0_MODE 0x08 +#define DA9210_GPIO1_PIN_SHIFT 4 +#define DA9210_GPIO1_PIN_MASK 0x30 +#define DA9210_GPIO1_PIN_GPI 0x00 +#define DA9210_GPIO1_PIN_VERROR 0x10 +#define DA9210_GPIO1_PIN_GPO_OD 0x20 +#define DA9210_GPIO1_PIN_GPO 0x30 +#define DA9210_GPIO1_TYPE_SHIFT 0x40 +#define DA9210_GPIO1_TYPE_GPI 0x00 +#define DA9210_GPIO1_TYPE_GPO 0x40 +#define DA9210_GPIO1_MODE 0x80 + +/* DA9210_REG_GPIO_2_3 (addr=0x59) */ +#define DA9210_GPIO2_PIN_SHIFT 0 +#define DA9210_GPIO2_PIN_MASK 0x03 +#define DA9210_GPIO2_PIN_GPI 0x00 +#define DA9210_GPIO5_PIN_BUCK_CLK 0x10 +#define DA9210_GPIO2_PIN_GPO_OD 0x02 +#define DA9210_GPIO2_PIN_GPO 0x03 +#define DA9210_GPIO2_TYPE 0x04 +#define DA9210_GPIO2_TYPE_GPI 0x00 +#define DA9210_GPIO2_TYPE_GPO 0x04 +#define DA9210_GPIO2_MODE 0x08 +#define DA9210_GPIO3_PIN_SHIFT 4 +#define DA9210_GPIO3_PIN_MASK 0x30 +#define DA9210_GPIO3_PIN_GPI 0x00 +#define DA9210_GPIO3_PIN_IERROR 0x10 +#define DA9210_GPIO3_PIN_GPO_OD 0x20 +#define DA9210_GPIO3_PIN_GPO 0x30 +#define DA9210_GPIO3_TYPE_SHIFT 0x40 +#define DA9210_GPIO3_TYPE_GPI 0x00 +#define DA9210_GPIO3_TYPE_GPO 0x40 +#define DA9210_GPIO3_MODE 0x80 + +/* DA9210_REG_GPIO_4_5 (addr=0x5A) */ +#define DA9210_GPIO4_PIN_SHIFT 0 +#define DA9210_GPIO4_PIN_MASK 0x03 +#define DA9210_GPIO4_PIN_GPI 0x00 +#define DA9210_GPIO4_PIN_GPO_OD 0x02 +#define DA9210_GPIO4_PIN_GPO 0x03 +#define DA9210_GPIO4_TYPE 0x04 +#define DA9210_GPIO4_TYPE_GPI 0x00 +#define DA9210_GPIO4_TYPE_GPO 0x04 +#define DA9210_GPIO4_MODE 0x08 +#define DA9210_GPIO5_PIN_SHIFT 4 +#define DA9210_GPIO5_PIN_MASK 0x30 +#define DA9210_GPIO5_PIN_GPI 0x00 +#define DA9210_GPIO5_PIN_INTERFACE 0x01 +#define DA9210_GPIO5_PIN_GPO_OD 0x20 +#define DA9210_GPIO5_PIN_GPO 0x30 +#define DA9210_GPIO5_TYPE_SHIFT 0x40 +#define DA9210_GPIO5_TYPE_GPI 0x00 +#define DA9210_GPIO5_TYPE_GPO 0x40 +#define DA9210_GPIO5_MODE 0x80 + +/* DA9210_REG_GPIO_6 (addr=0x5B) */ +#define DA9210_GPIO6_PIN_SHIFT 0 +#define DA9210_GPIO6_PIN_MASK 0x03 +#define DA9210_GPIO6_PIN_GPI 0x00 +#define DA9210_GPIO6_PIN_INTERFACE 0x01 +#define DA9210_GPIO6_PIN_GPO_OD 0x02 +#define DA9210_GPIO6_PIN_GPO 0x03 +#define DA9210_GPIO6_TYPE 0x04 +#define DA9210_GPIO6_TYPE_GPI 0x00 +#define DA9210_GPIO6_TYPE_GPO 0x04 +#define DA9210_GPIO6_MODE 0x08 + +/* DA9210_REG_BUCK_CONT (addr=0x5D) */ +#define DA9210_BUCK_EN 0x01 +#define DA9210_BUCK_GPI_SHIFT 1 +#define DA9210_BUCK_GPI_MASK 0x06 +#define DA9210_BUCK_GPI_OFF 0x00 +#define DA9210_BUCK_GPI_GPIO0 0x02 +#define DA9210_BUCK_GPI_GPIO3 0x04 +#define DA9210_BUCK_GPI_GPIO4 0x06 +#define DA9210_BUCK_PD_DIS 0x08 +#define DA9210_VBUCK_SEL 0x10 +#define DA9210_VBUCK_SEL_A 0x00 +#define DA9210_VBUCK_SEL_B 0x10 +#define DA9210_VBUCK_GPI_SHIFT 5 +#define DA9210_VBUCK_GPI_MASK 0x60 +#define DA9210_VBUCK_GPI_OFF 0x00 +#define DA9210_VBUCK_GPI_GPIO0 0x20 +#define DA9210_VBUCK_GPI_GPIO3 0x40 +#define DA9210_VBUCK_GPI_GPIO4 0x60 +#define DA9210_DVC_CTRL_EN 0x80 + +/* DA9210_REG_BUCK_ILIM (addr=0xD0) */ +#define DA9210_BUCK_ILIM_SHIFT 0 +#define DA9210_BUCK_ILIM_MASK 0x0F +#define DA9210_BUCK_IALARM 0x10 + +/* DA9210_REG_BUCK_CONF1 (addr=0xD1) */ +#define DA9210_BUCK_MODE_SHIFT 0 +#define DA9210_BUCK_MODE_MASK 0x03 +#define DA9210_BUCK_MODE_MANUAL 0x00 +#define DA9210_BUCK_MODE_SLEEP 0x01 +#define DA9210_BUCK_MODE_SYNC 0x02 +#define DA9210_BUCK_MODE_AUTO 0x03 +#define DA9210_STARTUP_CTRL_SHIFT 2 +#define DA9210_STARTUP_CTRL_MASK 0x1C +#define DA9210_PWR_DOWN_CTRL_SHIFT 5 +#define DA9210_PWR_DOWN_CTRL_MASK 0xE0 + +/* DA9210_REG_BUCK_CONF2 (addr=0xD2) */ +#define DA9210_PHASE_SEL_SHIFT 0 +#define DA9210_PHASE_SEL_MASK 0x03 +#define DA9210_FREQ_SEL 0x40 + +/* DA9210_REG_BUCK_AUTO (addr=0xD4) */ +#define DA9210_VBUCK_AUTO_SHIFT 0 +#define DA9210_VBUCK_AUTO_MASK 0x7F + +/* DA9210_REG_BUCK_BASE (addr=0xD5) */ +#define DA9210_VBUCK_BASE_SHIFT 0 +#define DA9210_VBUCK_BASE_MASK 0x7F + +/* DA9210_REG_VBUCK_MAX_DVC_IF (addr=0xD6) */ +#define DA9210_VBUCK_MAX_SHIFT 0 +#define DA9210_VBUCK_MAX_MASK 0x7F +#define DA9210_DVC_STEP_SIZE 0x80 +#define DA9210_DVC_STEP_SIZE_10MV 0x00 +#define DA9210_DVC_STEP_SIZE_20MV 0x80 + +/* DA9210_REG_VBUCK_DVC (addr=0xD7) */ +#define DA9210_VBUCK_DVC_SHIFT 0 +#define DA9210_VBUCK_DVC_MASK 0x7F + +/* DA9210_REG_VBUCK_A/B (addr=0xD8/0xD9) */ +#define DA9210_VBUCK_SHIFT 0 +#define DA9210_VBUCK_MASK 0x7F +#define DA9210_VBUCK_BIAS 0 +#define DA9210_BUCK_SL 0x80 + +/* DA9210_REG_INTERFACE (addr=0x105) */ +#define DA9210_IF_BASE_ADDR_SHIFT 4 +#define DA9210_IF_BASE_ADDR_MASK 0xF0 + +/* DA9210_REG_CONFIG_E (addr=0x147) */ +#define DA9210_STAND_ALONE 0x01 + +#endif /* __DA9210_REGISTERS_H__ */ + diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index f0e1ae52bb05..a32b44272a05 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -237,7 +237,7 @@ static int fan53555_regulator_probe(struct i2c_client *client, unsigned int val; int ret; - pdata = client->dev.platform_data; + pdata = dev_get_platdata(&client->dev); if (!pdata || !pdata->regulator) { dev_err(&client->dev, "Platform data not found!\n"); return -ENODEV; diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c index e5c03b534fae..7610920014d7 100644 --- a/drivers/regulator/fixed.c +++ b/drivers/regulator/fixed.c @@ -146,7 +146,7 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev) if (IS_ERR(config)) return PTR_ERR(config); } else { - config = pdev->dev.platform_data; + config = dev_get_platdata(&pdev->dev); } if (!config) diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c index 9d39eb4aafa3..98a98ffa7fe0 100644 --- a/drivers/regulator/gpio-regulator.c +++ b/drivers/regulator/gpio-regulator.c @@ -219,7 +219,7 @@ static struct regulator_ops gpio_regulator_current_ops = { static int gpio_regulator_probe(struct platform_device *pdev) { - struct gpio_regulator_config *config = pdev->dev.platform_data; + struct gpio_regulator_config *config = dev_get_platdata(&pdev->dev); struct device_node *np = pdev->dev.of_node; struct gpio_regulator_data *drvdata; struct regulator_config cfg = { }; diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c new file mode 100644 index 000000000000..6e30df14714b --- /dev/null +++ b/drivers/regulator/helpers.c @@ -0,0 +1,447 @@ +/* + * helpers.c -- Voltage/Current Regulator framework helper functions. + * + * Copyright 2007, 2008 Wolfson Microelectronics PLC. + * Copyright 2008 SlimLogic Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/delay.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/regulator/driver.h> +#include <linux/module.h> + +/** + * regulator_is_enabled_regmap - standard is_enabled() for regmap users + * + * @rdev: regulator to operate on + * + * Regulators that use regmap for their register I/O can set the + * enable_reg and enable_mask fields in their descriptor and then use + * this as their is_enabled operation, saving some code. + */ +int regulator_is_enabled_regmap(struct regulator_dev *rdev) +{ + unsigned int val; + int ret; + + ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); + if (ret != 0) + return ret; + + if (rdev->desc->enable_is_inverted) + return (val & rdev->desc->enable_mask) == 0; + else + return (val & rdev->desc->enable_mask) != 0; +} +EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap); + +/** + * regulator_enable_regmap - standard enable() for regmap users + * + * @rdev: regulator to operate on + * + * Regulators that use regmap for their register I/O can set the + * enable_reg and enable_mask fields in their descriptor and then use + * this as their enable() operation, saving some code. + */ +int regulator_enable_regmap(struct regulator_dev *rdev) +{ + unsigned int val; + + if (rdev->desc->enable_is_inverted) + val = 0; + else + val = rdev->desc->enable_mask; + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val); +} +EXPORT_SYMBOL_GPL(regulator_enable_regmap); + +/** + * regulator_disable_regmap - standard disable() for regmap users + * + * @rdev: regulator to operate on + * + * Regulators that use regmap for their register I/O can set the + * enable_reg and enable_mask fields in their descriptor and then use + * this as their disable() operation, saving some code. + */ +int regulator_disable_regmap(struct regulator_dev *rdev) +{ + unsigned int val; + + if (rdev->desc->enable_is_inverted) + val = rdev->desc->enable_mask; + else + val = 0; + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val); +} +EXPORT_SYMBOL_GPL(regulator_disable_regmap); + +/** + * regulator_get_voltage_sel_regmap - standard get_voltage_sel for regmap users + * + * @rdev: regulator to operate on + * + * Regulators that use regmap for their register I/O can set the + * vsel_reg and vsel_mask fields in their descriptor and then use this + * as their get_voltage_vsel operation, saving some code. + */ +int regulator_get_voltage_sel_regmap(struct regulator_dev *rdev) +{ + unsigned int val; + int ret; + + ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val); + if (ret != 0) + return ret; + + val &= rdev->desc->vsel_mask; + val >>= ffs(rdev->desc->vsel_mask) - 1; + + return val; +} +EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_regmap); + +/** + * regulator_set_voltage_sel_regmap - standard set_voltage_sel for regmap users + * + * @rdev: regulator to operate on + * @sel: Selector to set + * + * Regulators that use regmap for their register I/O can set the + * vsel_reg and vsel_mask fields in their descriptor and then use this + * as their set_voltage_vsel operation, saving some code. + */ +int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel) +{ + int ret; + + sel <<= ffs(rdev->desc->vsel_mask) - 1; + + ret = regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg, + rdev->desc->vsel_mask, sel); + if (ret) + return ret; + + if (rdev->desc->apply_bit) + ret = regmap_update_bits(rdev->regmap, rdev->desc->apply_reg, + rdev->desc->apply_bit, + rdev->desc->apply_bit); + return ret; +} +EXPORT_SYMBOL_GPL(regulator_set_voltage_sel_regmap); + +/** + * regulator_map_voltage_iterate - map_voltage() based on list_voltage() + * + * @rdev: Regulator to operate on + * @min_uV: Lower bound for voltage + * @max_uV: Upper bound for voltage + * + * Drivers implementing set_voltage_sel() and list_voltage() can use + * this as their map_voltage() operation. It will find a suitable + * voltage by calling list_voltage() until it gets something in bounds + * for the requested voltages. + */ +int regulator_map_voltage_iterate(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + int best_val = INT_MAX; + int selector = 0; + int i, ret; + + /* Find the smallest voltage that falls within the specified + * range. + */ + for (i = 0; i < rdev->desc->n_voltages; i++) { + ret = rdev->desc->ops->list_voltage(rdev, i); + if (ret < 0) + continue; + + if (ret < best_val && ret >= min_uV && ret <= max_uV) { + best_val = ret; + selector = i; + } + } + + if (best_val != INT_MAX) + return selector; + else + return -EINVAL; +} +EXPORT_SYMBOL_GPL(regulator_map_voltage_iterate); + +/** + * regulator_map_voltage_ascend - map_voltage() for ascendant voltage list + * + * @rdev: Regulator to operate on + * @min_uV: Lower bound for voltage + * @max_uV: Upper bound for voltage + * + * Drivers that have ascendant voltage list can use this as their + * map_voltage() operation. + */ +int regulator_map_voltage_ascend(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + int i, ret; + + for (i = 0; i < rdev->desc->n_voltages; i++) { + ret = rdev->desc->ops->list_voltage(rdev, i); + if (ret < 0) + continue; + + if (ret > max_uV) + break; + + if (ret >= min_uV && ret <= max_uV) + return i; + } + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(regulator_map_voltage_ascend); + +/** + * regulator_map_voltage_linear - map_voltage() for simple linear mappings + * + * @rdev: Regulator to operate on + * @min_uV: Lower bound for voltage + * @max_uV: Upper bound for voltage + * + * Drivers providing min_uV and uV_step in their regulator_desc can + * use this as their map_voltage() operation. + */ +int regulator_map_voltage_linear(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + int ret, voltage; + + /* Allow uV_step to be 0 for fixed voltage */ + if (rdev->desc->n_voltages == 1 && rdev->desc->uV_step == 0) { + if (min_uV <= rdev->desc->min_uV && rdev->desc->min_uV <= max_uV) + return 0; + else + return -EINVAL; + } + + if (!rdev->desc->uV_step) { + BUG_ON(!rdev->desc->uV_step); + return -EINVAL; + } + + if (min_uV < rdev->desc->min_uV) + min_uV = rdev->desc->min_uV; + + ret = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step); + if (ret < 0) + return ret; + + ret += rdev->desc->linear_min_sel; + + /* Map back into a voltage to verify we're still in bounds */ + voltage = rdev->desc->ops->list_voltage(rdev, ret); + if (voltage < min_uV || voltage > max_uV) + return -EINVAL; + + return ret; +} +EXPORT_SYMBOL_GPL(regulator_map_voltage_linear); + +/** + * regulator_map_voltage_linear - map_voltage() for multiple linear ranges + * + * @rdev: Regulator to operate on + * @min_uV: Lower bound for voltage + * @max_uV: Upper bound for voltage + * + * Drivers providing linear_ranges in their descriptor can use this as + * their map_voltage() callback. + */ +int regulator_map_voltage_linear_range(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + const struct regulator_linear_range *range; + int ret = -EINVAL; + int voltage, i; + + if (!rdev->desc->n_linear_ranges) { + BUG_ON(!rdev->desc->n_linear_ranges); + return -EINVAL; + } + + for (i = 0; i < rdev->desc->n_linear_ranges; i++) { + range = &rdev->desc->linear_ranges[i]; + + if (!(min_uV <= range->max_uV && max_uV >= range->min_uV)) + continue; + + if (min_uV <= range->min_uV) + min_uV = range->min_uV; + + /* range->uV_step == 0 means fixed voltage range */ + if (range->uV_step == 0) { + ret = 0; + } else { + ret = DIV_ROUND_UP(min_uV - range->min_uV, + range->uV_step); + if (ret < 0) + return ret; + } + + ret += range->min_sel; + + break; + } + + if (i == rdev->desc->n_linear_ranges) + return -EINVAL; + + /* Map back into a voltage to verify we're still in bounds */ + voltage = rdev->desc->ops->list_voltage(rdev, ret); + if (voltage < min_uV || voltage > max_uV) + return -EINVAL; + + return ret; +} +EXPORT_SYMBOL_GPL(regulator_map_voltage_linear_range); + +/** + * regulator_list_voltage_linear - List voltages with simple calculation + * + * @rdev: Regulator device + * @selector: Selector to convert into a voltage + * + * Regulators with a simple linear mapping between voltages and + * selectors can set min_uV and uV_step in the regulator descriptor + * and then use this function as their list_voltage() operation, + */ +int regulator_list_voltage_linear(struct regulator_dev *rdev, + unsigned int selector) +{ + if (selector >= rdev->desc->n_voltages) + return -EINVAL; + if (selector < rdev->desc->linear_min_sel) + return 0; + + selector -= rdev->desc->linear_min_sel; + + return rdev->desc->min_uV + (rdev->desc->uV_step * selector); +} +EXPORT_SYMBOL_GPL(regulator_list_voltage_linear); + +/** + * regulator_list_voltage_linear_range - List voltages for linear ranges + * + * @rdev: Regulator device + * @selector: Selector to convert into a voltage + * + * Regulators with a series of simple linear mappings between voltages + * and selectors can set linear_ranges in the regulator descriptor and + * then use this function as their list_voltage() operation, + */ +int regulator_list_voltage_linear_range(struct regulator_dev *rdev, + unsigned int selector) +{ + const struct regulator_linear_range *range; + int i; + + if (!rdev->desc->n_linear_ranges) { + BUG_ON(!rdev->desc->n_linear_ranges); + return -EINVAL; + } + + for (i = 0; i < rdev->desc->n_linear_ranges; i++) { + range = &rdev->desc->linear_ranges[i]; + + if (!(selector >= range->min_sel && + selector <= range->max_sel)) + continue; + + selector -= range->min_sel; + + return range->min_uV + (range->uV_step * selector); + } + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(regulator_list_voltage_linear_range); + +/** + * regulator_list_voltage_table - List voltages with table based mapping + * + * @rdev: Regulator device + * @selector: Selector to convert into a voltage + * + * Regulators with table based mapping between voltages and + * selectors can set volt_table in the regulator descriptor + * and then use this function as their list_voltage() operation. + */ +int regulator_list_voltage_table(struct regulator_dev *rdev, + unsigned int selector) +{ + if (!rdev->desc->volt_table) { + BUG_ON(!rdev->desc->volt_table); + return -EINVAL; + } + + if (selector >= rdev->desc->n_voltages) + return -EINVAL; + + return rdev->desc->volt_table[selector]; +} +EXPORT_SYMBOL_GPL(regulator_list_voltage_table); + +/** + * regulator_set_bypass_regmap - Default set_bypass() using regmap + * + * @rdev: device to operate on. + * @enable: state to set. + */ +int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable) +{ + unsigned int val; + + if (enable) + val = rdev->desc->bypass_mask; + else + val = 0; + + return regmap_update_bits(rdev->regmap, rdev->desc->bypass_reg, + rdev->desc->bypass_mask, val); +} +EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap); + +/** + * regulator_get_bypass_regmap - Default get_bypass() using regmap + * + * @rdev: device to operate on. + * @enable: current state. + */ +int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable) +{ + unsigned int val; + int ret; + + ret = regmap_read(rdev->regmap, rdev->desc->bypass_reg, &val); + if (ret != 0) + return ret; + + *enable = val & rdev->desc->bypass_mask; + + return 0; +} +EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap); diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c index b99c49b9aff0..88c1a3acf563 100644 --- a/drivers/regulator/isl6271a-regulator.c +++ b/drivers/regulator/isl6271a-regulator.c @@ -110,7 +110,7 @@ static int isl6271a_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct regulator_config config = { }; - struct regulator_init_data *init_data = i2c->dev.platform_data; + struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev); struct isl_pmic *pmic; int err, i; diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c index 3809b4381606..5a4604ee5ea5 100644 --- a/drivers/regulator/lp3971.c +++ b/drivers/regulator/lp3971.c @@ -425,7 +425,7 @@ static int lp3971_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct lp3971 *lp3971; - struct lp3971_platform_data *pdata = i2c->dev.platform_data; + struct lp3971_platform_data *pdata = dev_get_platdata(&i2c->dev); int ret; u16 val; diff --git a/drivers/regulator/lp3972.c b/drivers/regulator/lp3972.c index 573024039ca0..093e6f44ff8a 100644 --- a/drivers/regulator/lp3972.c +++ b/drivers/regulator/lp3972.c @@ -519,7 +519,7 @@ static int lp3972_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct lp3972 *lp3972; - struct lp3972_platform_data *pdata = i2c->dev.platform_data; + struct lp3972_platform_data *pdata = dev_get_platdata(&i2c->dev); int ret; u16 val; diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index b16336bcd4d4..2b84b727a3c4 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -373,7 +373,7 @@ static int lp8725_buck_set_current_limit(struct regulator_dev *rdev, return -EINVAL; } - for (i = ARRAY_SIZE(lp8725_buck_uA) - 1 ; i >= 0; i--) { + for (i = ARRAY_SIZE(lp8725_buck_uA) - 1; i >= 0; i--) { if (lp8725_buck_uA[i] >= min_uA && lp8725_buck_uA[i] <= max_uA) return lp872x_update_bits(lp, addr, @@ -787,7 +787,7 @@ static int lp872x_regulator_register(struct lp872x *lp) struct regulator_dev *rdev; int i, ret; - for (i = 0 ; i < lp->num_regulators ; i++) { + for (i = 0; i < lp->num_regulators; i++) { desc = (lp->chipid == LP8720) ? &lp8720_regulator_desc[i] : &lp8725_regulator_desc[i]; @@ -820,7 +820,7 @@ static void lp872x_regulator_unregister(struct lp872x *lp) struct regulator_dev *rdev; int i; - for (i = 0 ; i < lp->num_regulators ; i++) { + for (i = 0; i < lp->num_regulators; i++) { rdev = *(lp->regulators + i); regulator_unregister(rdev); } @@ -907,7 +907,8 @@ static struct lp872x_platform_data goto out; for (i = 0; i < num_matches; i++) { - pdata->regulator_data[i].id = (int)match[i].driver_data; + pdata->regulator_data[i].id = + (enum lp872x_regulator_id)match[i].driver_data; pdata->regulator_data[i].init_data = match[i].init_data; /* Operation mode configuration for buck/buck1/buck2 */ @@ -961,7 +962,7 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) } lp->dev = &cl->dev; - lp->pdata = cl->dev.platform_data; + lp->pdata = dev_get_platdata(&cl->dev); lp->chipid = id->driver_data; lp->num_regulators = num_regulators; i2c_set_clientdata(cl, lp); diff --git a/drivers/regulator/lp8755.c b/drivers/regulator/lp8755.c index d9e38b4c2adc..785a25e9a437 100644 --- a/drivers/regulator/lp8755.c +++ b/drivers/regulator/lp8755.c @@ -228,6 +228,7 @@ err_i2c: } static struct regulator_ops lp8755_buck_ops = { + .map_voltage = regulator_map_voltage_linear, .list_voltage = regulator_list_voltage_linear, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, @@ -449,7 +450,7 @@ static int lp8755_probe(struct i2c_client *client, { int ret, icnt; struct lp8755_chip *pchip; - struct lp8755_platform_data *pdata = client->dev.platform_data; + struct lp8755_platform_data *pdata = dev_get_platdata(&client->dev); if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { dev_err(&client->dev, "i2c functionality check fail.\n"); diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index 54af61015814..3a599ee0a456 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -163,7 +163,7 @@ static int max1586_pmic_probe(struct i2c_client *client, const struct i2c_device_id *i2c_id) { struct regulator_dev **rdev; - struct max1586_platform_data *pdata = client->dev.platform_data; + struct max1586_platform_data *pdata = dev_get_platdata(&client->dev); struct regulator_config config = { }; struct max1586_data *max1586; int i, id, ret = -ENOMEM; diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c index db6c9be10f3f..19c6f08eafd5 100644 --- a/drivers/regulator/max8649.c +++ b/drivers/regulator/max8649.c @@ -152,7 +152,7 @@ static struct regmap_config max8649_regmap_config = { static int max8649_regulator_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct max8649_platform_data *pdata = client->dev.platform_data; + struct max8649_platform_data *pdata = dev_get_platdata(&client->dev); struct max8649_regulator_info *info = NULL; struct regulator_config config = { }; unsigned int val; diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c index d428ef9a626f..144bcacd734d 100644 --- a/drivers/regulator/max8660.c +++ b/drivers/regulator/max8660.c @@ -44,6 +44,9 @@ #include <linux/regulator/driver.h> #include <linux/slab.h> #include <linux/regulator/max8660.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/regulator/of_regulator.h> #define MAX8660_DCDC_MIN_UV 725000 #define MAX8660_DCDC_MAX_UV 1800000 @@ -305,21 +308,105 @@ static const struct regulator_desc max8660_reg[] = { }, }; +enum { + MAX8660 = 0, + MAX8661 = 1, +}; + +#ifdef CONFIG_OF +static const struct of_device_id max8660_dt_ids[] = { + { .compatible = "maxim,max8660", .data = (void *) MAX8660 }, + { .compatible = "maxim,max8661", .data = (void *) MAX8661 }, + { } +}; +MODULE_DEVICE_TABLE(of, max8660_dt_ids); + +static int max8660_pdata_from_dt(struct device *dev, + struct device_node **of_node, + struct max8660_platform_data *pdata) +{ + int matched, i; + struct device_node *np; + struct max8660_subdev_data *sub; + struct of_regulator_match rmatch[ARRAY_SIZE(max8660_reg)]; + + np = of_find_node_by_name(dev->of_node, "regulators"); + if (!np) { + dev_err(dev, "missing 'regulators' subnode in DT\n"); + return -EINVAL; + } + + for (i = 0; i < ARRAY_SIZE(rmatch); i++) + rmatch[i].name = max8660_reg[i].name; + + matched = of_regulator_match(dev, np, rmatch, ARRAY_SIZE(rmatch)); + if (matched <= 0) + return matched; + + pdata->subdevs = devm_kzalloc(dev, sizeof(struct max8660_subdev_data) * + matched, GFP_KERNEL); + if (!pdata->subdevs) + return -ENOMEM; + + pdata->num_subdevs = matched; + sub = pdata->subdevs; + + for (i = 0; i < matched; i++) { + sub->id = i; + sub->name = rmatch[i].name; + sub->platform_data = rmatch[i].init_data; + of_node[i] = rmatch[i].of_node; + sub++; + } + + return 0; +} +#else +static inline int max8660_pdata_from_dt(struct device *dev, + struct device_node **of_node, + struct max8660_platform_data *pdata) +{ + return 0; +} +#endif + static int max8660_probe(struct i2c_client *client, const struct i2c_device_id *i2c_id) { struct regulator_dev **rdev; - struct max8660_platform_data *pdata = client->dev.platform_data; + struct device *dev = &client->dev; + struct max8660_platform_data *pdata = dev_get_platdata(dev); struct regulator_config config = { }; struct max8660 *max8660; int boot_on, i, id, ret = -EINVAL; + struct device_node *of_node[MAX8660_V_END]; + unsigned long type; + + if (dev->of_node && !pdata) { + const struct of_device_id *id; + struct max8660_platform_data pdata_of; + + id = of_match_device(of_match_ptr(max8660_dt_ids), dev); + if (!id) + return -ENODEV; + + ret = max8660_pdata_from_dt(dev, of_node, &pdata_of); + if (ret < 0) + return ret; + + pdata = &pdata_of; + type = (unsigned long) id->data; + } else { + type = i2c_id->driver_data; + memset(of_node, 0, sizeof(of_node)); + } if (pdata->num_subdevs > MAX8660_V_END) { - dev_err(&client->dev, "Too many regulators found!\n"); + dev_err(dev, "Too many regulators found!\n"); return -EINVAL; } - max8660 = devm_kzalloc(&client->dev, sizeof(struct max8660) + + max8660 = devm_kzalloc(dev, sizeof(struct max8660) + sizeof(struct regulator_dev *) * MAX8660_V_END, GFP_KERNEL); if (!max8660) @@ -376,8 +463,8 @@ static int max8660_probe(struct i2c_client *client, break; case MAX8660_V7: - if (!strcmp(i2c_id->name, "max8661")) { - dev_err(&client->dev, "Regulator not on this chip!\n"); + if (type == MAX8661) { + dev_err(dev, "Regulator not on this chip!\n"); goto err_out; } @@ -386,7 +473,7 @@ static int max8660_probe(struct i2c_client *client, break; default: - dev_err(&client->dev, "invalid regulator %s\n", + dev_err(dev, "invalid regulator %s\n", pdata->subdevs[i].name); goto err_out; } @@ -397,14 +484,15 @@ static int max8660_probe(struct i2c_client *client, id = pdata->subdevs[i].id; - config.dev = &client->dev; + config.dev = dev; config.init_data = pdata->subdevs[i].platform_data; + config.of_node = of_node[i]; config.driver_data = max8660; rdev[i] = regulator_register(&max8660_reg[id], &config); if (IS_ERR(rdev[i])) { ret = PTR_ERR(rdev[i]); - dev_err(&client->dev, "failed to register %s\n", + dev_err(dev, "failed to register %s\n", max8660_reg[id].name); goto err_unregister; } @@ -431,8 +519,8 @@ static int max8660_remove(struct i2c_client *client) } static const struct i2c_device_id max8660_id[] = { - { "max8660", 0 }, - { "max8661", 0 }, + { .name = "max8660", .driver_data = MAX8660 }, + { .name = "max8661", .driver_data = MAX8661 }, { } }; MODULE_DEVICE_TABLE(i2c, max8660_id); diff --git a/drivers/regulator/max8925-regulator.c b/drivers/regulator/max8925-regulator.c index e6d54a546d36..d80b5fa758ae 100644 --- a/drivers/regulator/max8925-regulator.c +++ b/drivers/regulator/max8925-regulator.c @@ -277,7 +277,7 @@ static int max8925_regulator_dt_init(struct platform_device *pdev, static int max8925_regulator_probe(struct platform_device *pdev) { struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); - struct regulator_init_data *pdata = pdev->dev.platform_data; + struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev); struct regulator_config config = { }; struct max8925_regulator_info *ri; struct resource *res; diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c index 5259c2fea90a..788e5ae2af1b 100644 --- a/drivers/regulator/max8952.c +++ b/drivers/regulator/max8952.c @@ -196,7 +196,7 @@ static int max8952_pmic_probe(struct i2c_client *client, const struct i2c_device_id *i2c_id) { struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); - struct max8952_platform_data *pdata = client->dev.platform_data; + struct max8952_platform_data *pdata = dev_get_platdata(&client->dev); struct regulator_config config = { }; struct max8952_data *max8952; diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c index 0c5195a842e2..5b77ab7762e4 100644 --- a/drivers/regulator/max8973-regulator.c +++ b/drivers/regulator/max8973-regulator.c @@ -371,7 +371,7 @@ static int max8973_probe(struct i2c_client *client, struct max8973_chip *max; int ret; - pdata = client->dev.platform_data; + pdata = dev_get_platdata(&client->dev); if (!pdata && !client->dev.of_node) { dev_err(&client->dev, "No Platform data"); diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index f3c8f8f9dc39..7827384680d6 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -21,6 +21,7 @@ static void of_get_regulation_constraints(struct device_node *np, { const __be32 *min_uV, *max_uV, *uV_offset; const __be32 *min_uA, *max_uA, *ramp_delay; + struct property *prop; struct regulation_constraints *constraints = &(*init_data)->constraints; constraints->name = of_get_property(np, "regulator-name", NULL); @@ -64,9 +65,14 @@ static void of_get_regulation_constraints(struct device_node *np, if (of_property_read_bool(np, "regulator-allow-bypass")) constraints->valid_ops_mask |= REGULATOR_CHANGE_BYPASS; - ramp_delay = of_get_property(np, "regulator-ramp-delay", NULL); - if (ramp_delay) - constraints->ramp_delay = be32_to_cpu(*ramp_delay); + prop = of_find_property(np, "regulator-ramp-delay", NULL); + if (prop && prop->value) { + ramp_delay = prop->value; + if (*ramp_delay) + constraints->ramp_delay = be32_to_cpu(*ramp_delay); + else + constraints->ramp_disable = true; + } } /** diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index d0c87856dd25..488dfe7ce9a6 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -97,11 +97,16 @@ static const struct regs_info palmas_regs_info[] = { .ctrl_addr = PALMAS_SMPS9_CTRL, }, { - .name = "SMPS10", + .name = "SMPS10_OUT2", .sname = "smps10-in", .ctrl_addr = PALMAS_SMPS10_CTRL, }, { + .name = "SMPS10_OUT1", + .sname = "smps10-out2", + .ctrl_addr = PALMAS_SMPS10_CTRL, + }, + { .name = "LDO1", .sname = "ldo1-in", .vsel_addr = PALMAS_LDO1_VOLTAGE, @@ -487,6 +492,8 @@ static struct regulator_ops palmas_ops_smps10 = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, + .set_bypass = regulator_set_bypass_regmap, + .get_bypass = regulator_get_bypass_regmap, }; static int palmas_is_enabled_ldo(struct regulator_dev *dev) @@ -538,7 +545,8 @@ static int palmas_smps_init(struct palmas *palmas, int id, return ret; switch (id) { - case PALMAS_REG_SMPS10: + case PALMAS_REG_SMPS10_OUT1: + case PALMAS_REG_SMPS10_OUT2: reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; if (reg_init->mode_sleep) reg |= reg_init->mode_sleep << @@ -681,7 +689,8 @@ static struct of_regulator_match palmas_matches[] = { { .name = "smps7", }, { .name = "smps8", }, { .name = "smps9", }, - { .name = "smps10", }, + { .name = "smps10_out2", }, + { .name = "smps10_out1", }, { .name = "ldo1", }, { .name = "ldo2", }, { .name = "ldo3", }, @@ -765,7 +774,7 @@ static void palmas_dt_to_pdata(struct device *dev, static int palmas_regulators_probe(struct platform_device *pdev) { struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); - struct palmas_pmic_platform_data *pdata = pdev->dev.platform_data; + struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev); struct device_node *node = pdev->dev.of_node; struct regulator_dev *rdev; struct regulator_config config = { }; @@ -838,7 +847,8 @@ static int palmas_regulators_probe(struct platform_device *pdev) continue; ramp_delay_support = true; break; - case PALMAS_REG_SMPS10: + case PALMAS_REG_SMPS10_OUT1: + case PALMAS_REG_SMPS10_OUT2: if (!PALMAS_PMIC_HAS(palmas, SMPS10_BOOST)) continue; } @@ -872,7 +882,8 @@ static int palmas_regulators_probe(struct platform_device *pdev) pmic->desc[id].id = id; switch (id) { - case PALMAS_REG_SMPS10: + case PALMAS_REG_SMPS10_OUT1: + case PALMAS_REG_SMPS10_OUT2: pmic->desc[id].n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; pmic->desc[id].ops = &palmas_ops_smps10; pmic->desc[id].vsel_reg = @@ -882,7 +893,14 @@ static int palmas_regulators_probe(struct platform_device *pdev) pmic->desc[id].enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, PALMAS_SMPS10_CTRL); - pmic->desc[id].enable_mask = SMPS10_BOOST_EN; + if (id == PALMAS_REG_SMPS10_OUT1) + pmic->desc[id].enable_mask = SMPS10_SWITCH_EN; + else + pmic->desc[id].enable_mask = SMPS10_BOOST_EN; + pmic->desc[id].bypass_reg = + PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + PALMAS_SMPS10_CTRL); + pmic->desc[id].bypass_mask = SMPS10_BYPASS_EN; pmic->desc[id].min_uV = 3750000; pmic->desc[id].uV_step = 1250000; break; diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c index 1a73a297fe73..b49eaeedea84 100644 --- a/drivers/regulator/pcap-regulator.c +++ b/drivers/regulator/pcap-regulator.c @@ -243,7 +243,7 @@ static int pcap_regulator_probe(struct platform_device *pdev) struct regulator_config config = { }; config.dev = &pdev->dev; - config.init_data = pdev->dev.platform_data; + config.init_data = dev_get_platdata(&pdev->dev); config.driver_data = pcap; rdev = regulator_register(&pcap_regulators[pdev->id], &config); diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c index 54df9f7cb504..0f3576d48abf 100644 --- a/drivers/regulator/pcf50633-regulator.c +++ b/drivers/regulator/pcf50633-regulator.c @@ -86,7 +86,7 @@ static int pcf50633_regulator_probe(struct platform_device *pdev) pcf = dev_to_pcf50633(pdev->dev.parent); config.dev = &pdev->dev; - config.init_data = pdev->dev.platform_data; + config.init_data = dev_get_platdata(&pdev->dev); config.driver_data = pcf; config.regmap = pcf->regmap; diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c new file mode 100644 index 000000000000..ba67b2c4e2e7 --- /dev/null +++ b/drivers/regulator/pfuze100-regulator.c @@ -0,0 +1,445 @@ +/* + * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/regulator/of_regulator.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/pfuze100.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/regmap.h> + +#define PFUZE_NUMREGS 128 +#define PFUZE100_VOL_OFFSET 0 +#define PFUZE100_STANDBY_OFFSET 1 +#define PFUZE100_MODE_OFFSET 3 +#define PFUZE100_CONF_OFFSET 4 + +#define PFUZE100_DEVICEID 0x0 +#define PFUZE100_REVID 0x3 +#define PFUZE100_FABID 0x3 + +#define PFUZE100_SW1ABVOL 0x20 +#define PFUZE100_SW1CVOL 0x2e +#define PFUZE100_SW2VOL 0x35 +#define PFUZE100_SW3AVOL 0x3c +#define PFUZE100_SW3BVOL 0x43 +#define PFUZE100_SW4VOL 0x4a +#define PFUZE100_SWBSTCON1 0x66 +#define PFUZE100_VREFDDRCON 0x6a +#define PFUZE100_VSNVSVOL 0x6b +#define PFUZE100_VGEN1VOL 0x6c +#define PFUZE100_VGEN2VOL 0x6d +#define PFUZE100_VGEN3VOL 0x6e +#define PFUZE100_VGEN4VOL 0x6f +#define PFUZE100_VGEN5VOL 0x70 +#define PFUZE100_VGEN6VOL 0x71 + +struct pfuze_regulator { + struct regulator_desc desc; + unsigned char stby_reg; + unsigned char stby_mask; +}; + +struct pfuze_chip { + struct regmap *regmap; + struct device *dev; + struct pfuze_regulator regulator_descs[PFUZE100_MAX_REGULATOR]; + struct regulator_dev *regulators[PFUZE100_MAX_REGULATOR]; +}; + +static const int pfuze100_swbst[] = { + 5000000, 5050000, 5100000, 5150000, +}; + +static const int pfuze100_vsnvs[] = { + 1000000, 1100000, 1200000, 1300000, 1500000, 1800000, 3000000, +}; + +static const struct i2c_device_id pfuze_device_id[] = { + {.name = "pfuze100"}, + {}, +}; +MODULE_DEVICE_TABLE(i2c, pfuze_device_id); + +static const struct of_device_id pfuze_dt_ids[] = { + { .compatible = "fsl,pfuze100" }, + {}, +}; +MODULE_DEVICE_TABLE(of, pfuze_dt_ids); + +static int pfuze100_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) +{ + struct pfuze_chip *pfuze100 = rdev_get_drvdata(rdev); + int id = rdev->desc->id; + unsigned int ramp_bits; + int ret; + + if (id < PFUZE100_SWBST) { + ramp_delay = 12500 / ramp_delay; + ramp_bits = (ramp_delay >> 1) - (ramp_delay >> 3); + ret = regmap_update_bits(pfuze100->regmap, + rdev->desc->vsel_reg + 4, + 0xc0, ramp_bits << 6); + if (ret < 0) + dev_err(pfuze100->dev, "ramp failed, err %d\n", ret); + } else + ret = -EACCES; + + return ret; +} + +static struct regulator_ops pfuze100_ldo_regulator_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_linear, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, +}; + +static struct regulator_ops pfuze100_fixed_regulator_ops = { + .list_voltage = regulator_list_voltage_linear, +}; + +static struct regulator_ops pfuze100_sw_regulator_ops = { + .list_voltage = regulator_list_voltage_linear, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = pfuze100_set_ramp_delay, +}; + +static struct regulator_ops pfuze100_swb_regulator_ops = { + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_ascend, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + +}; + +#define PFUZE100_FIXED_REG(_name, base, voltage) \ + [PFUZE100_ ## _name] = { \ + .desc = { \ + .name = #_name, \ + .n_voltages = 1, \ + .ops = &pfuze100_fixed_regulator_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = PFUZE100_ ## _name, \ + .owner = THIS_MODULE, \ + .min_uV = (voltage), \ + .enable_reg = (base), \ + .enable_mask = 0x10, \ + }, \ + } + +#define PFUZE100_SW_REG(_name, base, min, max, step) \ + [PFUZE100_ ## _name] = { \ + .desc = { \ + .name = #_name,\ + .n_voltages = ((max) - (min)) / (step) + 1, \ + .ops = &pfuze100_sw_regulator_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = PFUZE100_ ## _name, \ + .owner = THIS_MODULE, \ + .min_uV = (min), \ + .uV_step = (step), \ + .vsel_reg = (base) + PFUZE100_VOL_OFFSET, \ + .vsel_mask = 0x3f, \ + }, \ + .stby_reg = (base) + PFUZE100_STANDBY_OFFSET, \ + .stby_mask = 0x3f, \ + } + +#define PFUZE100_SWB_REG(_name, base, mask, voltages) \ + [PFUZE100_ ## _name] = { \ + .desc = { \ + .name = #_name, \ + .n_voltages = ARRAY_SIZE(voltages), \ + .ops = &pfuze100_swb_regulator_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = PFUZE100_ ## _name, \ + .owner = THIS_MODULE, \ + .volt_table = voltages, \ + .vsel_reg = (base), \ + .vsel_mask = (mask), \ + }, \ + } + +#define PFUZE100_VGEN_REG(_name, base, min, max, step) \ + [PFUZE100_ ## _name] = { \ + .desc = { \ + .name = #_name, \ + .n_voltages = ((max) - (min)) / (step) + 1, \ + .ops = &pfuze100_ldo_regulator_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = PFUZE100_ ## _name, \ + .owner = THIS_MODULE, \ + .min_uV = (min), \ + .uV_step = (step), \ + .vsel_reg = (base), \ + .vsel_mask = 0xf, \ + .enable_reg = (base), \ + .enable_mask = 0x10, \ + }, \ + .stby_reg = (base), \ + .stby_mask = 0x20, \ + } + +static struct pfuze_regulator pfuze100_regulators[] = { + PFUZE100_SW_REG(SW1AB, PFUZE100_SW1ABVOL, 300000, 1875000, 25000), + PFUZE100_SW_REG(SW1C, PFUZE100_SW1CVOL, 300000, 1875000, 25000), + PFUZE100_SW_REG(SW2, PFUZE100_SW2VOL, 400000, 1975000, 25000), + PFUZE100_SW_REG(SW3A, PFUZE100_SW3AVOL, 400000, 1975000, 25000), + PFUZE100_SW_REG(SW3B, PFUZE100_SW3BVOL, 400000, 1975000, 25000), + PFUZE100_SW_REG(SW4, PFUZE100_SW4VOL, 400000, 1975000, 25000), + PFUZE100_SWB_REG(SWBST, PFUZE100_SWBSTCON1, 0x3 , pfuze100_swbst), + PFUZE100_SWB_REG(VSNVS, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs), + PFUZE100_FIXED_REG(VREFDDR, PFUZE100_VREFDDRCON, 750000), + PFUZE100_VGEN_REG(VGEN1, PFUZE100_VGEN1VOL, 800000, 1550000, 50000), + PFUZE100_VGEN_REG(VGEN2, PFUZE100_VGEN2VOL, 800000, 1550000, 50000), + PFUZE100_VGEN_REG(VGEN3, PFUZE100_VGEN3VOL, 1800000, 3300000, 100000), + PFUZE100_VGEN_REG(VGEN4, PFUZE100_VGEN4VOL, 1800000, 3300000, 100000), + PFUZE100_VGEN_REG(VGEN5, PFUZE100_VGEN5VOL, 1800000, 3300000, 100000), + PFUZE100_VGEN_REG(VGEN6, PFUZE100_VGEN6VOL, 1800000, 3300000, 100000), +}; + +#ifdef CONFIG_OF +static struct of_regulator_match pfuze100_matches[] = { + { .name = "sw1ab", }, + { .name = "sw1c", }, + { .name = "sw2", }, + { .name = "sw3a", }, + { .name = "sw3b", }, + { .name = "sw4", }, + { .name = "swbst", }, + { .name = "vsnvs", }, + { .name = "vrefddr", }, + { .name = "vgen1", }, + { .name = "vgen2", }, + { .name = "vgen3", }, + { .name = "vgen4", }, + { .name = "vgen5", }, + { .name = "vgen6", }, +}; + +static int pfuze_parse_regulators_dt(struct pfuze_chip *chip) +{ + struct device *dev = chip->dev; + struct device_node *np, *parent; + int ret; + + np = of_node_get(dev->parent->of_node); + if (!np) + return 0; + + parent = of_find_node_by_name(np, "regulators"); + if (!parent) { + dev_err(dev, "regulators node not found\n"); + return -EINVAL; + } + + ret = of_regulator_match(dev, parent, pfuze100_matches, + ARRAY_SIZE(pfuze100_matches)); + + of_node_put(parent); + if (ret < 0) { + dev_err(dev, "Error parsing regulator init data: %d\n", + ret); + return ret; + } + + return 0; +} + +static inline struct regulator_init_data *match_init_data(int index) +{ + return pfuze100_matches[index].init_data; +} + +static inline struct device_node *match_of_node(int index) +{ + return pfuze100_matches[index].of_node; +} +#else +static int pfuze_parse_regulators_dt(struct pfuze_chip *chip) +{ + return 0; +} + +static inline struct regulator_init_data *match_init_data(int index) +{ + return NULL; +} + +static inline struct device_node *match_of_node(int index) +{ + return NULL; +} +#endif + +static int pfuze_identify(struct pfuze_chip *pfuze_chip) +{ + unsigned int value; + int ret; + + ret = regmap_read(pfuze_chip->regmap, PFUZE100_DEVICEID, &value); + if (ret) + return ret; + + if (value & 0x0f) { + dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); + return -ENODEV; + } + + ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value); + if (ret) + return ret; + dev_info(pfuze_chip->dev, + "Full lay: %x, Metal lay: %x\n", + (value & 0xf0) >> 4, value & 0x0f); + + ret = regmap_read(pfuze_chip->regmap, PFUZE100_FABID, &value); + if (ret) + return ret; + dev_info(pfuze_chip->dev, "FAB: %x, FIN: %x\n", + (value & 0xc) >> 2, value & 0x3); + + return 0; +} + +static const struct regmap_config pfuze_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = PFUZE_NUMREGS - 1, + .cache_type = REGCACHE_RBTREE, +}; + +static int pfuze100_regulator_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pfuze_chip *pfuze_chip; + struct pfuze_regulator_platform_data *pdata = + dev_get_platdata(&client->dev); + struct regulator_config config = { }; + int i, ret; + + pfuze_chip = devm_kzalloc(&client->dev, sizeof(*pfuze_chip), + GFP_KERNEL); + if (!pfuze_chip) + return -ENOMEM; + + i2c_set_clientdata(client, pfuze_chip); + + memcpy(pfuze_chip->regulator_descs, pfuze100_regulators, + sizeof(pfuze_chip->regulator_descs)); + + pfuze_chip->dev = &client->dev; + + pfuze_chip->regmap = devm_regmap_init_i2c(client, &pfuze_regmap_config); + if (IS_ERR(pfuze_chip->regmap)) { + ret = PTR_ERR(pfuze_chip->regmap); + dev_err(&client->dev, + "regmap allocation failed with err %d\n", ret); + return ret; + } + + ret = pfuze_identify(pfuze_chip); + if (ret) { + dev_err(&client->dev, "unrecognized pfuze chip ID!\n"); + return ret; + } + + ret = pfuze_parse_regulators_dt(pfuze_chip); + if (ret) + return ret; + + for (i = 0; i < PFUZE100_MAX_REGULATOR; i++) { + struct regulator_init_data *init_data; + struct regulator_desc *desc; + int val; + + desc = &pfuze_chip->regulator_descs[i].desc; + + if (pdata) + init_data = pdata->init_data[i]; + else + init_data = match_init_data(i); + + /* SW2~SW4 high bit check and modify the voltage value table */ + if (i > PFUZE100_SW1C && i < PFUZE100_SWBST) { + regmap_read(pfuze_chip->regmap, desc->vsel_reg, &val); + if (val & 0x40) { + desc->min_uV = 800000; + desc->uV_step = 50000; + desc->n_voltages = 51; + } + } + + config.dev = &client->dev; + config.init_data = init_data; + config.driver_data = pfuze_chip; + config.of_node = match_of_node(i); + + pfuze_chip->regulators[i] = regulator_register(desc, &config); + if (IS_ERR(pfuze_chip->regulators[i])) { + dev_err(&client->dev, "register regulator%s failed\n", + pfuze100_regulators[i].desc.name); + ret = PTR_ERR(pfuze_chip->regulators[i]); + while (--i >= 0) + regulator_unregister(pfuze_chip->regulators[i]); + return ret; + } + } + + return 0; +} + +static int pfuze100_regulator_remove(struct i2c_client *client) +{ + int i; + struct pfuze_chip *pfuze_chip = i2c_get_clientdata(client); + + for (i = 0; i < PFUZE100_MAX_REGULATOR; i++) + regulator_unregister(pfuze_chip->regulators[i]); + + return 0; +} + +static struct i2c_driver pfuze_driver = { + .id_table = pfuze_device_id, + .driver = { + .name = "pfuze100-regulator", + .owner = THIS_MODULE, + .of_match_table = pfuze_dt_ids, + }, + .probe = pfuze100_regulator_probe, + .remove = pfuze100_regulator_remove, +}; +module_i2c_driver(pfuze_driver); + +MODULE_AUTHOR("Robin Gong <b38343@freescale.com>"); +MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100 PMIC"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("i2c:pfuze100-regulator"); diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index 2f62564ca936..5eba2ff8c0e8 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -16,12 +16,17 @@ #include <linux/gpio.h> #include <linux/slab.h> #include <linux/module.h> +#include <linux/of.h> +#include <linux/regmap.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> +#include <linux/regulator/of_regulator.h> #include <linux/mfd/samsung/core.h> #include <linux/mfd/samsung/s2mps11.h> +#define S2MPS11_REGULATOR_CNT ARRAY_SIZE(regulators) + struct s2mps11_info { struct regulator_dev *rdev[S2MPS11_REGULATOR_MAX]; @@ -31,11 +36,6 @@ struct s2mps11_info { int ramp_delay16; int ramp_delay7810; int ramp_delay9; - - bool buck6_ramp; - bool buck2_ramp; - bool buck3_ramp; - bool buck4_ramp; }; static int get_ramp_delay(int ramp_delay) @@ -50,9 +50,171 @@ static int get_ramp_delay(int ramp_delay) break; cnt++; } + + if (cnt > 3) + cnt = 3; + return cnt; } +static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, + unsigned int new_selector) +{ + struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); + unsigned int ramp_delay = 0; + int old_volt, new_volt; + + switch (rdev->desc->id) { + case S2MPS11_BUCK2: + ramp_delay = s2mps11->ramp_delay2; + break; + case S2MPS11_BUCK3: + ramp_delay = s2mps11->ramp_delay34; + break; + case S2MPS11_BUCK4: + ramp_delay = s2mps11->ramp_delay34; + break; + case S2MPS11_BUCK5: + ramp_delay = s2mps11->ramp_delay5; + break; + case S2MPS11_BUCK6: + case S2MPS11_BUCK1: + ramp_delay = s2mps11->ramp_delay16; + break; + case S2MPS11_BUCK7: + case S2MPS11_BUCK8: + case S2MPS11_BUCK10: + ramp_delay = s2mps11->ramp_delay7810; + break; + case S2MPS11_BUCK9: + ramp_delay = s2mps11->ramp_delay9; + } + + if (ramp_delay == 0) + ramp_delay = rdev->desc->ramp_delay; + + old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector); + new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector); + + return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay); +} + +static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) +{ + struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); + unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK; + unsigned int ramp_enable = 1, enable_shift = 0; + int ret; + + switch (rdev->desc->id) { + case S2MPS11_BUCK1: + if (ramp_delay > s2mps11->ramp_delay16) + s2mps11->ramp_delay16 = ramp_delay; + else + ramp_delay = s2mps11->ramp_delay16; + + ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; + break; + case S2MPS11_BUCK2: + enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT; + if (!ramp_delay) { + ramp_enable = 0; + break; + } + + s2mps11->ramp_delay2 = ramp_delay; + ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT; + ramp_reg = S2MPS11_REG_RAMP; + break; + case S2MPS11_BUCK3: + enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT; + if (!ramp_delay) { + ramp_enable = 0; + break; + } + + if (ramp_delay > s2mps11->ramp_delay34) + s2mps11->ramp_delay34 = ramp_delay; + else + ramp_delay = s2mps11->ramp_delay34; + + ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; + ramp_reg = S2MPS11_REG_RAMP; + break; + case S2MPS11_BUCK4: + enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT; + if (!ramp_delay) { + ramp_enable = 0; + break; + } + + if (ramp_delay > s2mps11->ramp_delay34) + s2mps11->ramp_delay34 = ramp_delay; + else + ramp_delay = s2mps11->ramp_delay34; + + ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT; + ramp_reg = S2MPS11_REG_RAMP; + break; + case S2MPS11_BUCK5: + s2mps11->ramp_delay5 = ramp_delay; + ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT; + break; + case S2MPS11_BUCK6: + enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT; + if (!ramp_delay) { + ramp_enable = 0; + break; + } + + if (ramp_delay > s2mps11->ramp_delay16) + s2mps11->ramp_delay16 = ramp_delay; + else + ramp_delay = s2mps11->ramp_delay16; + + ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT; + break; + case S2MPS11_BUCK7: + case S2MPS11_BUCK8: + case S2MPS11_BUCK10: + if (ramp_delay > s2mps11->ramp_delay7810) + s2mps11->ramp_delay7810 = ramp_delay; + else + ramp_delay = s2mps11->ramp_delay7810; + + ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT; + break; + case S2MPS11_BUCK9: + s2mps11->ramp_delay9 = ramp_delay; + ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT; + break; + default: + return 0; + } + + if (!ramp_enable) + goto ramp_disable; + + if (enable_shift) { + ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, + 1 << enable_shift, 1 << enable_shift); + if (ret) { + dev_err(&rdev->dev, "failed to enable ramp rate\n"); + return ret; + } + } + + ramp_val = get_ramp_delay(ramp_delay); + + return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift, + ramp_val << ramp_shift); + +ramp_disable: + return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP, + 1 << enable_shift, 0); +} + static struct regulator_ops s2mps11_ldo_ops = { .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, @@ -72,7 +234,8 @@ static struct regulator_ops s2mps11_buck_ops = { .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel, + .set_ramp_delay = s2mps11_set_ramp_delay, }; #define regulator_desc_ldo1(num) { \ @@ -239,59 +402,51 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) { struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); struct sec_platform_data *pdata = dev_get_platdata(iodev->dev); + struct of_regulator_match rdata[S2MPS11_REGULATOR_MAX]; + struct device_node *reg_np = NULL; struct regulator_config config = { }; struct s2mps11_info *s2mps11; int i, ret; - unsigned char ramp_enable, ramp_reg = 0; - - if (!pdata) { - dev_err(pdev->dev.parent, "Platform data not supplied\n"); - return -ENODEV; - } s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info), GFP_KERNEL); if (!s2mps11) return -ENOMEM; - platform_set_drvdata(pdev, s2mps11); + if (!iodev->dev->of_node) { + if (pdata) { + goto common_reg; + } else { + dev_err(pdev->dev.parent, + "Platform data or DT node not supplied\n"); + return -ENODEV; + } + } - s2mps11->ramp_delay2 = pdata->buck2_ramp_delay; - s2mps11->ramp_delay34 = pdata->buck34_ramp_delay; - s2mps11->ramp_delay5 = pdata->buck5_ramp_delay; - s2mps11->ramp_delay16 = pdata->buck16_ramp_delay; - s2mps11->ramp_delay7810 = pdata->buck7810_ramp_delay; - s2mps11->ramp_delay9 = pdata->buck9_ramp_delay; - - s2mps11->buck6_ramp = pdata->buck6_ramp_enable; - s2mps11->buck2_ramp = pdata->buck2_ramp_enable; - s2mps11->buck3_ramp = pdata->buck3_ramp_enable; - s2mps11->buck4_ramp = pdata->buck4_ramp_enable; - - ramp_enable = (s2mps11->buck2_ramp << 3) | (s2mps11->buck3_ramp << 2) | - (s2mps11->buck4_ramp << 1) | s2mps11->buck6_ramp ; - - if (ramp_enable) { - if (s2mps11->buck2_ramp) - ramp_reg |= get_ramp_delay(s2mps11->ramp_delay2) << 6; - if (s2mps11->buck3_ramp || s2mps11->buck4_ramp) - ramp_reg |= get_ramp_delay(s2mps11->ramp_delay34) << 4; - sec_reg_write(iodev, S2MPS11_REG_RAMP, ramp_reg | ramp_enable); + for (i = 0; i < S2MPS11_REGULATOR_CNT; i++) + rdata[i].name = regulators[i].name; + + reg_np = of_find_node_by_name(iodev->dev->of_node, "regulators"); + if (!reg_np) { + dev_err(&pdev->dev, "could not find regulators sub-node\n"); + return -EINVAL; } - ramp_reg &= 0x00; - ramp_reg |= get_ramp_delay(s2mps11->ramp_delay5) << 6; - ramp_reg |= get_ramp_delay(s2mps11->ramp_delay16) << 4; - ramp_reg |= get_ramp_delay(s2mps11->ramp_delay7810) << 2; - ramp_reg |= get_ramp_delay(s2mps11->ramp_delay9); - sec_reg_write(iodev, S2MPS11_REG_RAMP_BUCK, ramp_reg); + of_regulator_match(&pdev->dev, reg_np, rdata, S2MPS11_REGULATOR_MAX); - for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) { +common_reg: + platform_set_drvdata(pdev, s2mps11); - config.dev = &pdev->dev; - config.regmap = iodev->regmap; - config.init_data = pdata->regulators[i].initdata; - config.driver_data = s2mps11; + config.dev = &pdev->dev; + config.regmap = iodev->regmap; + config.driver_data = s2mps11; + for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) { + if (!reg_np) { + config.init_data = pdata->regulators[i].initdata; + } else { + config.init_data = rdata[i].init_data; + config.of_node = rdata[i].of_node; + } s2mps11->rdev[i] = regulator_register(®ulators[i], &config); if (IS_ERR(s2mps11->rdev[i])) { diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c index 3753ed05e719..d8e3e1262bc2 100644 --- a/drivers/regulator/ti-abb-regulator.c +++ b/drivers/regulator/ti-abb-regulator.c @@ -717,11 +717,6 @@ static int ti_abb_probe(struct platform_device *pdev) /* Map ABB resources */ pname = "base-address"; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname); - if (!res) { - dev_err(dev, "Missing '%s' IO resource\n", pname); - ret = -ENODEV; - goto err; - } abb->base = devm_ioremap_resource(dev, res); if (IS_ERR(abb->base)) { ret = PTR_ERR(abb->base); @@ -770,11 +765,6 @@ static int ti_abb_probe(struct platform_device *pdev) pname = "ldo-address"; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname); - if (!res) { - dev_dbg(dev, "Missing '%s' IO resource\n", pname); - ret = -ENODEV; - goto skip_opt; - } abb->ldo_base = devm_ioremap_resource(dev, res); if (IS_ERR(abb->ldo_base)) { ret = PTR_ERR(abb->ldo_base); diff --git a/drivers/regulator/tps51632-regulator.c b/drivers/regulator/tps51632-regulator.c index 6e67be75ea1b..9392a7ca3d2d 100644 --- a/drivers/regulator/tps51632-regulator.c +++ b/drivers/regulator/tps51632-regulator.c @@ -275,7 +275,7 @@ static int tps51632_probe(struct i2c_client *client, } } - pdata = client->dev.platform_data; + pdata = dev_get_platdata(&client->dev); if (!pdata && client->dev.of_node) pdata = of_get_tps51632_platform_data(&client->dev); if (!pdata) { diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c index a490d5b749b2..0b7ebb1ebf85 100644 --- a/drivers/regulator/tps62360-regulator.c +++ b/drivers/regulator/tps62360-regulator.c @@ -350,7 +350,7 @@ static int tps62360_probe(struct i2c_client *client, int i; int chip_id; - pdata = client->dev.platform_data; + pdata = dev_get_platdata(&client->dev); if (client->dev.of_node) { const struct of_device_id *match; diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index 9d053e23e9eb..a15263d4bdff 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -218,7 +218,7 @@ static int tps_65023_probe(struct i2c_client *client, * init_data points to array of regulator_init structures * coming from the board-evm file. */ - init_data = client->dev.platform_data; + init_data = dev_get_platdata(&client->dev); if (!init_data) return -EIO; diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 2df4616621f5..90861d68a0b0 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -27,7 +27,7 @@ #include <linux/regulator/machine.h> #include <linux/mfd/tps65217.h> -#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em, _t) \ +#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em, _t, _lr, _nlr) \ { \ .name = _name, \ .id = _id, \ @@ -40,17 +40,10 @@ .enable_reg = TPS65217_REG_ENABLE, \ .enable_mask = _em, \ .volt_table = _t, \ + .linear_ranges = _lr, \ + .n_linear_ranges = _nlr, \ } \ -#define TPS65217_INFO(_nm, _min, _max, _f1, _f2) \ - { \ - .name = _nm, \ - .min_uV = _min, \ - .max_uV = _max, \ - .vsel_to_uv = _f1, \ - .uv_to_vsel = _f2, \ - } - static const unsigned int LDO1_VSEL_table[] = { 1000000, 1100000, 1200000, 1250000, 1300000, 1350000, 1400000, 1500000, @@ -58,88 +51,26 @@ static const unsigned int LDO1_VSEL_table[] = { 2800000, 3000000, 3100000, 3300000, }; -static int tps65217_vsel_to_uv1(unsigned int vsel) -{ - int uV = 0; - - if (vsel > 63) - return -EINVAL; - - if (vsel <= 24) - uV = vsel * 25000 + 900000; - else if (vsel <= 52) - uV = (vsel - 24) * 50000 + 1500000; - else if (vsel < 56) - uV = (vsel - 52) * 100000 + 2900000; - else - uV = 3300000; - - return uV; -} - -static int tps65217_uv_to_vsel1(int uV, unsigned int *vsel) -{ - if (uV < 0 || uV > 3300000) - return -EINVAL; - - if (uV <= 1500000) - *vsel = DIV_ROUND_UP(uV - 900000, 25000); - else if (uV <= 2900000) - *vsel = 24 + DIV_ROUND_UP(uV - 1500000, 50000); - else if (uV < 3300000) - *vsel = 52 + DIV_ROUND_UP(uV - 2900000, 100000); - else - *vsel = 56; - - return 0; -} - -static int tps65217_vsel_to_uv2(unsigned int vsel) -{ - int uV = 0; - - if (vsel > 31) - return -EINVAL; - - if (vsel <= 8) - uV = vsel * 50000 + 1500000; - else if (vsel <= 13) - uV = (vsel - 8) * 100000 + 1900000; - else - uV = (vsel - 13) * 50000 + 2400000; - - return uV; -} - -static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel) -{ - if (uV < 0 || uV > 3300000) - return -EINVAL; - - if (uV <= 1900000) - *vsel = DIV_ROUND_UP(uV - 1500000, 50000); - else if (uV <= 2400000) - *vsel = 8 + DIV_ROUND_UP(uV - 1900000, 100000); - else - *vsel = 13 + DIV_ROUND_UP(uV - 2400000, 50000); - - return 0; -} +static const struct regulator_linear_range tps65217_uv1_ranges[] = { + { .min_uV = 900000, .max_uV = 1500000, .min_sel = 0, .max_sel = 24, + .uV_step = 25000 }, + { .min_uV = 1550000, .max_uV = 1800000, .min_sel = 25, .max_sel = 30, + .uV_step = 50000 }, + { .min_uV = 1850000, .max_uV = 2900000, .min_sel = 31, .max_sel = 52, + .uV_step = 50000 }, + { .min_uV = 3000000, .max_uV = 3200000, .min_sel = 53, .max_sel = 55, + .uV_step = 100000 }, + { .min_uV = 3300000, .max_uV = 3300000, .min_sel = 56, .max_sel = 62, + .uV_step = 0 }, +}; -static struct tps_info tps65217_pmic_regs[] = { - TPS65217_INFO("DCDC1", 900000, 1800000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1), - TPS65217_INFO("DCDC2", 900000, 3300000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1), - TPS65217_INFO("DCDC3", 900000, 1500000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1), - TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL), - TPS65217_INFO("LDO2", 900000, 3300000, tps65217_vsel_to_uv1, - tps65217_uv_to_vsel1), - TPS65217_INFO("LDO3", 1800000, 3300000, tps65217_vsel_to_uv2, - tps65217_uv_to_vsel2), - TPS65217_INFO("LDO4", 1800000, 3300000, tps65217_vsel_to_uv2, - tps65217_uv_to_vsel2), +static const struct regulator_linear_range tps65217_uv2_ranges[] = { + { .min_uV = 1500000, .max_uV = 1900000, .min_sel = 0, .max_sel = 8, + .uV_step = 50000 }, + { .min_uV = 2000000, .max_uV = 2400000, .min_sel = 9, .max_sel = 13, + .uV_step = 100000 }, + { .min_uV = 2450000, .max_uV = 3300000, .min_sel = 14, .max_sel = 31, + .uV_step = 50000 }, }; static int tps65217_pmic_enable(struct regulator_dev *dev) @@ -192,49 +123,6 @@ static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev, return ret; } -static int tps65217_pmic_map_voltage(struct regulator_dev *dev, - int min_uV, int max_uV) -{ - - struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int sel, rid = rdev_get_id(dev); - int ret; - - /* LDO1 uses regulator_map_voltage_iterate() */ - if (rid == TPS65217_LDO_1) - return -EINVAL; - - if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) - return -EINVAL; - - if (min_uV < tps->info[rid]->min_uV) - min_uV = tps->info[rid]->min_uV; - - if (max_uV < tps->info[rid]->min_uV || min_uV > tps->info[rid]->max_uV) - return -EINVAL; - - ret = tps->info[rid]->uv_to_vsel(min_uV, &sel); - if (ret) - return ret; - - return sel; -} - -static int tps65217_pmic_list_voltage(struct regulator_dev *dev, - unsigned selector) -{ - struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int rid = rdev_get_id(dev); - - if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) - return -EINVAL; - - if (selector >= dev->desc->n_voltages) - return -EINVAL; - - return tps->info[rid]->vsel_to_uv(selector); -} - /* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */ static struct regulator_ops tps65217_pmic_ops = { .is_enabled = regulator_is_enabled_regmap, @@ -242,8 +130,8 @@ static struct regulator_ops tps65217_pmic_ops = { .disable = tps65217_pmic_disable, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = tps65217_pmic_set_voltage_sel, - .list_voltage = tps65217_pmic_list_voltage, - .map_voltage = tps65217_pmic_map_voltage, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, }; /* Operations permitted on LDO1 */ @@ -259,27 +147,33 @@ static struct regulator_ops tps65217_pmic_ldo1_ops = { static const struct regulator_desc regulators[] = { TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC1_EN, NULL), + TPS65217_ENABLE_DC1_EN, NULL, tps65217_uv1_ranges, + 2), /* DCDC1 voltage range: 900000 ~ 1800000 */ TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC2_EN, NULL), + TPS65217_ENABLE_DC2_EN, NULL, tps65217_uv1_ranges, + ARRAY_SIZE(tps65217_uv1_ranges)), TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC3_EN, NULL), + TPS65217_ENABLE_DC3_EN, NULL, tps65217_uv1_ranges, + 1), /* DCDC3 voltage range: 900000 ~ 1500000 */ TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16, TPS65217_REG_DEFLDO1, TPS65217_DEFLDO1_LDO1_MASK, - TPS65217_ENABLE_LDO1_EN, LDO1_VSEL_table), + TPS65217_ENABLE_LDO1_EN, LDO1_VSEL_table, NULL, 0), TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64, TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK, - TPS65217_ENABLE_LDO2_EN, NULL), + TPS65217_ENABLE_LDO2_EN, NULL, tps65217_uv1_ranges, + ARRAY_SIZE(tps65217_uv1_ranges)), TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32, TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK, TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN, - NULL), + NULL, tps65217_uv2_ranges, + ARRAY_SIZE(tps65217_uv2_ranges)), TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32, TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK, TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN, - NULL), + NULL, tps65217_uv2_ranges, + ARRAY_SIZE(tps65217_uv2_ranges)), }; #ifdef CONFIG_OF @@ -368,8 +262,6 @@ static int tps65217_regulator_probe(struct platform_device *pdev) continue; /* Register the regulators */ - tps->info[i] = &tps65217_pmic_regs[i]; - config.dev = tps->dev; config.init_data = reg_data; config.driver_data = tps; diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c index 1094393155ed..62e8d28beabd 100644 --- a/drivers/regulator/tps6524x-regulator.c +++ b/drivers/regulator/tps6524x-regulator.c @@ -601,7 +601,7 @@ static int pmic_probe(struct spi_device *spi) struct regulator_config config = { }; int ret = 0, i; - init_data = dev->platform_data; + init_data = dev_get_platdata(dev); if (!init_data) { dev_err(dev, "could not find regulator platform data\n"); return -EINVAL; diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c index 17e994e47dc1..281e52ac64ba 100644 --- a/drivers/regulator/tps65912-regulator.c +++ b/drivers/regulator/tps65912-regulator.c @@ -118,6 +118,15 @@ struct tps65912_reg { int eco_reg; }; +static const struct regulator_linear_range tps65912_ldo_ranges[] = { + { .min_uV = 800000, .max_uV = 1600000, .min_sel = 0, .max_sel = 32, + .uV_step = 25000 }, + { .min_uV = 1650000, .max_uV = 3000000, .min_sel = 33, .max_sel = 60, + .uV_step = 50000 }, + { .min_uV = 3100000, .max_uV = 3300000, .min_sel = 61, .max_sel = 63, + .uV_step = 100000 }, +}; + static int tps65912_get_range(struct tps65912_reg *pmic, int id) { struct tps65912 *mfd = pmic->mfd; @@ -184,20 +193,6 @@ static unsigned long tps65912_vsel_to_uv_range3(u8 vsel) return uv; } -static unsigned long tps65912_vsel_to_uv_ldo(u8 vsel) -{ - unsigned long uv = 0; - - if (vsel <= 32) - uv = ((vsel * 25000) + 800000); - else if (vsel > 32 && vsel <= 60) - uv = (((vsel - 32) * 50000) + 1600000); - else if (vsel > 60) - uv = (((vsel - 60) * 100000) + 3000000); - - return uv; -} - static int tps65912_get_ctrl_register(int id) { if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4) @@ -376,9 +371,6 @@ static int tps65912_list_voltage(struct regulator_dev *dev, unsigned selector) struct tps65912_reg *pmic = rdev_get_drvdata(dev); int range, voltage = 0, id = rdev_get_id(dev); - if (id >= TPS65912_REG_LDO1 && id <= TPS65912_REG_LDO10) - return tps65912_vsel_to_uv_ldo(selector); - if (id > TPS65912_REG_DCDC4) return -EINVAL; @@ -456,7 +448,8 @@ static struct regulator_ops tps65912_ops_ldo = { .disable = tps65912_reg_disable, .get_voltage_sel = tps65912_get_voltage_sel, .set_voltage_sel = tps65912_set_voltage_sel, - .list_voltage = tps65912_list_voltage, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, }; static int tps65912_probe(struct platform_device *pdev) @@ -495,8 +488,14 @@ static int tps65912_probe(struct platform_device *pdev) pmic->desc[i].name = info->name; pmic->desc[i].id = i; pmic->desc[i].n_voltages = 64; - pmic->desc[i].ops = (i > TPS65912_REG_DCDC4 ? - &tps65912_ops_ldo : &tps65912_ops_dcdc); + if (i > TPS65912_REG_DCDC4) { + pmic->desc[i].ops = &tps65912_ops_ldo; + pmic->desc[i].linear_ranges = tps65912_ldo_ranges; + pmic->desc[i].n_linear_ranges = + ARRAY_SIZE(tps65912_ldo_ranges); + } else { + pmic->desc[i].ops = &tps65912_ops_dcdc; + } pmic->desc[i].type = REGULATOR_VOLTAGE; pmic->desc[i].owner = THIS_MODULE; range = tps65912_get_range(pmic, i); diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index 93bc4f456da4..78aae4cbb004 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -1108,7 +1108,7 @@ static int twlreg_probe(struct platform_device *pdev) drvdata = NULL; } else { id = pdev->id; - initdata = pdev->dev.platform_data; + initdata = dev_get_platdata(&pdev->dev); for (i = 0, template = NULL; i < ARRAY_SIZE(twl_of_match); i++) { template = twl_of_match[i].data; if (template && template->desc.id == id) diff --git a/drivers/regulator/userspace-consumer.c b/drivers/regulator/userspace-consumer.c index a7c8deb5f28f..765acc11c9c8 100644 --- a/drivers/regulator/userspace-consumer.c +++ b/drivers/regulator/userspace-consumer.c @@ -111,7 +111,7 @@ static int regulator_userspace_consumer_probe(struct platform_device *pdev) struct userspace_consumer_data *drvdata; int ret; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (!pdata) return -EINVAL; diff --git a/drivers/regulator/virtual.c b/drivers/regulator/virtual.c index a9d4284ea007..f53e78b9a84e 100644 --- a/drivers/regulator/virtual.c +++ b/drivers/regulator/virtual.c @@ -287,7 +287,7 @@ static const struct attribute_group regulator_virtual_attr_group = { static int regulator_virtual_probe(struct platform_device *pdev) { - char *reg_id = pdev->dev.platform_data; + char *reg_id = dev_get_platdata(&pdev->dev); struct virtual_consumer_data *drvdata; int ret; diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 46938cf162ad..11861cb861df 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -451,7 +451,7 @@ static void wm831x_buckv_dvs_init(struct wm831x_dcdc *dcdc, static int wm831x_buckv_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *pdata = wm831x->dev->platform_data; + struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev); struct regulator_config config = { }; int id; struct wm831x_dcdc *dcdc; @@ -624,7 +624,7 @@ static struct regulator_ops wm831x_buckp_ops = { static int wm831x_buckp_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *pdata = wm831x->dev->platform_data; + struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev); struct regulator_config config = { }; int id; struct wm831x_dcdc *dcdc; @@ -770,7 +770,7 @@ static struct regulator_ops wm831x_boostp_ops = { static int wm831x_boostp_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *pdata = wm831x->dev->platform_data; + struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev); struct regulator_config config = { }; int id = pdev->id % ARRAY_SIZE(pdata->dcdc); struct wm831x_dcdc *dcdc; @@ -880,7 +880,7 @@ static struct regulator_ops wm831x_epe_ops = { static int wm831x_epe_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *pdata = wm831x->dev->platform_data; + struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev); struct regulator_config config = { }; int id = pdev->id % ARRAY_SIZE(pdata->epe); struct wm831x_dcdc *dcdc; diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c index 16ebdf94d0a0..4eb373de1fac 100644 --- a/drivers/regulator/wm831x-isink.c +++ b/drivers/regulator/wm831x-isink.c @@ -151,7 +151,7 @@ static irqreturn_t wm831x_isink_irq(int irq, void *data) static int wm831x_isink_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *pdata = wm831x->dev->platform_data; + struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev); struct wm831x_isink *isink; int id = pdev->id % ARRAY_SIZE(pdata->isink); struct regulator_config config = { }; diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index 9ff883f80878..1432b26ef2e9 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -62,41 +62,12 @@ static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data) * General purpose LDOs */ -#define WM831X_GP_LDO_SELECTOR_LOW 0xe -#define WM831X_GP_LDO_MAX_SELECTOR 0x1f - -static int wm831x_gp_ldo_list_voltage(struct regulator_dev *rdev, - unsigned int selector) -{ - /* 0.9-1.6V in 50mV steps */ - if (selector <= WM831X_GP_LDO_SELECTOR_LOW) - return 900000 + (selector * 50000); - /* 1.7-3.3V in 100mV steps */ - if (selector <= WM831X_GP_LDO_MAX_SELECTOR) - return 1600000 + ((selector - WM831X_GP_LDO_SELECTOR_LOW) - * 100000); - return -EINVAL; -} - -static int wm831x_gp_ldo_map_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int volt, vsel; - - if (min_uV < 900000) - vsel = 0; - else if (min_uV < 1700000) - vsel = ((min_uV - 900000) / 50000); - else - vsel = ((min_uV - 1700000) / 100000) - + WM831X_GP_LDO_SELECTOR_LOW + 1; - - volt = wm831x_gp_ldo_list_voltage(rdev, vsel); - if (volt < min_uV || volt > max_uV) - return -EINVAL; - - return vsel; -} +static const struct regulator_linear_range wm831x_gp_ldo_ranges[] = { + { .min_uV = 900000, .max_uV = 1650000, .min_sel = 0, .max_sel = 14, + .uV_step = 50000 }, + { .min_uV = 1700000, .max_uV = 3300000, .min_sel = 15, .max_sel = 31, + .uV_step = 100000 }, +}; static int wm831x_gp_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) @@ -105,7 +76,7 @@ static int wm831x_gp_ldo_set_suspend_voltage(struct regulator_dev *rdev, struct wm831x *wm831x = ldo->wm831x; int sel, reg = ldo->base + WM831X_LDO_SLEEP_CONTROL; - sel = wm831x_gp_ldo_map_voltage(rdev, uV, uV); + sel = regulator_map_voltage_linear_range(rdev, uV, uV); if (sel < 0) return sel; @@ -230,8 +201,8 @@ static unsigned int wm831x_gp_ldo_get_optimum_mode(struct regulator_dev *rdev, static struct regulator_ops wm831x_gp_ldo_ops = { - .list_voltage = wm831x_gp_ldo_list_voltage, - .map_voltage = wm831x_gp_ldo_map_voltage, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_suspend_voltage = wm831x_gp_ldo_set_suspend_voltage, @@ -250,7 +221,7 @@ static struct regulator_ops wm831x_gp_ldo_ops = { static int wm831x_gp_ldo_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *pdata = wm831x->dev->platform_data; + struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev); struct regulator_config config = { }; int id; struct wm831x_ldo *ldo; @@ -290,7 +261,7 @@ static int wm831x_gp_ldo_probe(struct platform_device *pdev) ldo->desc.id = id; ldo->desc.type = REGULATOR_VOLTAGE; - ldo->desc.n_voltages = WM831X_GP_LDO_MAX_SELECTOR + 1; + ldo->desc.n_voltages = 32; ldo->desc.ops = &wm831x_gp_ldo_ops; ldo->desc.owner = THIS_MODULE; ldo->desc.vsel_reg = ldo->base + WM831X_LDO_ON_CONTROL; @@ -299,6 +270,8 @@ static int wm831x_gp_ldo_probe(struct platform_device *pdev) ldo->desc.enable_mask = 1 << id; ldo->desc.bypass_reg = ldo->base; ldo->desc.bypass_mask = WM831X_LDO1_SWI; + ldo->desc.linear_ranges = wm831x_gp_ldo_ranges; + ldo->desc.n_linear_ranges = ARRAY_SIZE(wm831x_gp_ldo_ranges); config.dev = pdev->dev.parent; if (pdata) @@ -358,43 +331,12 @@ static struct platform_driver wm831x_gp_ldo_driver = { * Analogue LDOs */ - -#define WM831X_ALDO_SELECTOR_LOW 0xc -#define WM831X_ALDO_MAX_SELECTOR 0x1f - -static int wm831x_aldo_list_voltage(struct regulator_dev *rdev, - unsigned int selector) -{ - /* 1-1.6V in 50mV steps */ - if (selector <= WM831X_ALDO_SELECTOR_LOW) - return 1000000 + (selector * 50000); - /* 1.7-3.5V in 100mV steps */ - if (selector <= WM831X_ALDO_MAX_SELECTOR) - return 1600000 + ((selector - WM831X_ALDO_SELECTOR_LOW) - * 100000); - return -EINVAL; -} - -static int wm831x_aldo_map_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int volt, vsel; - - if (min_uV < 1000000) - vsel = 0; - else if (min_uV < 1700000) - vsel = ((min_uV - 1000000) / 50000); - else - vsel = ((min_uV - 1700000) / 100000) - + WM831X_ALDO_SELECTOR_LOW + 1; - - volt = wm831x_aldo_list_voltage(rdev, vsel); - if (volt < min_uV || volt > max_uV) - return -EINVAL; - - return vsel; - -} +static const struct regulator_linear_range wm831x_aldo_ranges[] = { + { .min_uV = 1000000, .max_uV = 1650000, .min_sel = 0, .max_sel = 12, + .uV_step = 50000 }, + { .min_uV = 1700000, .max_uV = 3500000, .min_sel = 13, .max_sel = 31, + .uV_step = 100000 }, +}; static int wm831x_aldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) @@ -403,7 +345,7 @@ static int wm831x_aldo_set_suspend_voltage(struct regulator_dev *rdev, struct wm831x *wm831x = ldo->wm831x; int sel, reg = ldo->base + WM831X_LDO_SLEEP_CONTROL; - sel = wm831x_aldo_map_voltage(rdev, uV, uV); + sel = regulator_map_voltage_linear_range(rdev, uV, uV); if (sel < 0) return sel; @@ -486,8 +428,8 @@ static int wm831x_aldo_get_status(struct regulator_dev *rdev) } static struct regulator_ops wm831x_aldo_ops = { - .list_voltage = wm831x_aldo_list_voltage, - .map_voltage = wm831x_aldo_map_voltage, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_suspend_voltage = wm831x_aldo_set_suspend_voltage, @@ -505,7 +447,7 @@ static struct regulator_ops wm831x_aldo_ops = { static int wm831x_aldo_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *pdata = wm831x->dev->platform_data; + struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev); struct regulator_config config = { }; int id; struct wm831x_ldo *ldo; @@ -545,7 +487,9 @@ static int wm831x_aldo_probe(struct platform_device *pdev) ldo->desc.id = id; ldo->desc.type = REGULATOR_VOLTAGE; - ldo->desc.n_voltages = WM831X_ALDO_MAX_SELECTOR + 1; + ldo->desc.n_voltages = 32; + ldo->desc.linear_ranges = wm831x_aldo_ranges; + ldo->desc.n_linear_ranges = ARRAY_SIZE(wm831x_aldo_ranges); ldo->desc.ops = &wm831x_aldo_ops; ldo->desc.owner = THIS_MODULE; ldo->desc.vsel_reg = ldo->base + WM831X_LDO_ON_CONTROL; @@ -661,7 +605,7 @@ static struct regulator_ops wm831x_alive_ldo_ops = { static int wm831x_alive_ldo_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *pdata = wm831x->dev->platform_data; + struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev); struct regulator_config config = { }; int id; struct wm831x_ldo *ldo; diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 7f0fa22ef2aa..835b5f0f344e 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -542,41 +542,12 @@ static int wm8350_dcdc_set_suspend_mode(struct regulator_dev *rdev, return 0; } -static int wm8350_ldo_list_voltage(struct regulator_dev *rdev, - unsigned selector) -{ - if (selector > WM8350_LDO1_VSEL_MASK) - return -EINVAL; - - if (selector < 16) - return (selector * 50000) + 900000; - else - return ((selector - 16) * 100000) + 1800000; -} - -static int wm8350_ldo_map_voltage(struct regulator_dev *rdev, int min_uV, - int max_uV) -{ - int volt, sel; - int min_mV = min_uV / 1000; - int max_mV = max_uV / 1000; - - if (min_mV < 900 || min_mV > 3300) - return -EINVAL; - if (max_mV < 900 || max_mV > 3300) - return -EINVAL; - - if (min_mV < 1800) /* step size is 50mV < 1800mV */ - sel = DIV_ROUND_UP(min_uV - 900, 50); - else /* step size is 100mV > 1800mV */ - sel = DIV_ROUND_UP(min_uV - 1800, 100) + 16; - - volt = wm8350_ldo_list_voltage(rdev, sel); - if (volt < min_uV || volt > max_uV) - return -EINVAL; - - return sel; -} +static const struct regulator_linear_range wm8350_ldo_ranges[] = { + { .min_uV = 900000, .max_uV = 1750000, .min_sel = 0, .max_sel = 15, + .uV_step = 50000 }, + { .min_uV = 1800000, .max_uV = 3300000, .min_sel = 16, .max_sel = 31, + .uV_step = 100000 }, +}; static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) { @@ -603,7 +574,7 @@ static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV) return -EINVAL; } - sel = wm8350_ldo_map_voltage(rdev, uV, uV); + sel = regulator_map_voltage_linear_range(rdev, uV, uV); if (sel < 0) return -EINVAL; @@ -998,10 +969,10 @@ static struct regulator_ops wm8350_dcdc2_5_ops = { }; static struct regulator_ops wm8350_ldo_ops = { - .map_voltage = wm8350_ldo_map_voltage, + .map_voltage = regulator_map_voltage_linear_range, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, - .list_voltage = wm8350_ldo_list_voltage, + .list_voltage = regulator_list_voltage_linear_range, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, @@ -1108,6 +1079,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_LDO1, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_LDO1_VSEL_MASK + 1, + .linear_ranges = wm8350_ldo_ranges, + .n_linear_ranges = ARRAY_SIZE(wm8350_ldo_ranges), .vsel_reg = WM8350_LDO1_CONTROL, .vsel_mask = WM8350_LDO1_VSEL_MASK, .enable_reg = WM8350_DCDC_LDO_REQUESTED, @@ -1121,6 +1094,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_LDO2, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_LDO2_VSEL_MASK + 1, + .linear_ranges = wm8350_ldo_ranges, + .n_linear_ranges = ARRAY_SIZE(wm8350_ldo_ranges), .vsel_reg = WM8350_LDO2_CONTROL, .vsel_mask = WM8350_LDO2_VSEL_MASK, .enable_reg = WM8350_DCDC_LDO_REQUESTED, @@ -1134,6 +1109,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_LDO3, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_LDO3_VSEL_MASK + 1, + .linear_ranges = wm8350_ldo_ranges, + .n_linear_ranges = ARRAY_SIZE(wm8350_ldo_ranges), .vsel_reg = WM8350_LDO3_CONTROL, .vsel_mask = WM8350_LDO3_VSEL_MASK, .enable_reg = WM8350_DCDC_LDO_REQUESTED, @@ -1147,6 +1124,8 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { .irq = WM8350_IRQ_UV_LDO4, .type = REGULATOR_VOLTAGE, .n_voltages = WM8350_LDO4_VSEL_MASK + 1, + .linear_ranges = wm8350_ldo_ranges, + .n_linear_ranges = ARRAY_SIZE(wm8350_ldo_ranges), .vsel_reg = WM8350_LDO4_CONTROL, .vsel_mask = WM8350_LDO4_VSEL_MASK, .enable_reg = WM8350_DCDC_LDO_REQUESTED, @@ -1222,7 +1201,7 @@ static int wm8350_regulator_probe(struct platform_device *pdev) } config.dev = &pdev->dev; - config.init_data = pdev->dev.platform_data; + config.init_data = dev_get_platdata(&pdev->dev); config.driver_data = dev_get_drvdata(&pdev->dev); config.regmap = wm8350->regmap; diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c index a09f03ee5506..58f51bec13f2 100644 --- a/drivers/regulator/wm8400-regulator.c +++ b/drivers/regulator/wm8400-regulator.c @@ -19,47 +19,21 @@ #include <linux/regulator/driver.h> #include <linux/mfd/wm8400-private.h> -static int wm8400_ldo_list_voltage(struct regulator_dev *dev, - unsigned selector) -{ - if (selector > WM8400_LDO1_VSEL_MASK) - return -EINVAL; - - if (selector < 15) - return 900000 + (selector * 50000); - else - return 1700000 + ((selector - 15) * 100000); -} - -static int wm8400_ldo_map_voltage(struct regulator_dev *dev, - int min_uV, int max_uV) -{ - u16 val; - int volt; - - if (min_uV < 900000 || min_uV > 3300000) - return -EINVAL; - - if (min_uV < 1700000) /* Steps of 50mV from 900mV; */ - val = DIV_ROUND_UP(min_uV - 900000, 50000); - else /* Steps of 100mV from 1700mV */ - val = DIV_ROUND_UP(min_uV - 1700000, 100000) + 15; - - volt = wm8400_ldo_list_voltage(dev, val); - if (volt < min_uV || volt > max_uV) - return -EINVAL; - - return val; -} +static const struct regulator_linear_range wm8400_ldo_ranges[] = { + { .min_uV = 900000, .max_uV = 1600000, .min_sel = 0, .max_sel = 14, + .uV_step = 50000 }, + { .min_uV = 1700000, .max_uV = 3300000, .min_sel = 15, .max_sel = 31, + .uV_step = 100000 }, +}; static struct regulator_ops wm8400_ldo_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, - .list_voltage = wm8400_ldo_list_voltage, + .list_voltage = regulator_list_voltage_linear_range, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .map_voltage = wm8400_ldo_map_voltage, + .map_voltage = regulator_map_voltage_linear_range, }; static unsigned int wm8400_dcdc_get_mode(struct regulator_dev *dev) @@ -155,6 +129,8 @@ static struct regulator_desc regulators[] = { .enable_reg = WM8400_LDO1_CONTROL, .enable_mask = WM8400_LDO1_ENA, .n_voltages = WM8400_LDO1_VSEL_MASK + 1, + .linear_ranges = wm8400_ldo_ranges, + .n_linear_ranges = ARRAY_SIZE(wm8400_ldo_ranges), .vsel_reg = WM8400_LDO1_CONTROL, .vsel_mask = WM8400_LDO1_VSEL_MASK, .type = REGULATOR_VOLTAGE, @@ -167,6 +143,8 @@ static struct regulator_desc regulators[] = { .enable_reg = WM8400_LDO2_CONTROL, .enable_mask = WM8400_LDO2_ENA, .n_voltages = WM8400_LDO2_VSEL_MASK + 1, + .linear_ranges = wm8400_ldo_ranges, + .n_linear_ranges = ARRAY_SIZE(wm8400_ldo_ranges), .type = REGULATOR_VOLTAGE, .vsel_reg = WM8400_LDO2_CONTROL, .vsel_mask = WM8400_LDO2_VSEL_MASK, @@ -179,6 +157,8 @@ static struct regulator_desc regulators[] = { .enable_reg = WM8400_LDO3_CONTROL, .enable_mask = WM8400_LDO3_ENA, .n_voltages = WM8400_LDO3_VSEL_MASK + 1, + .linear_ranges = wm8400_ldo_ranges, + .n_linear_ranges = ARRAY_SIZE(wm8400_ldo_ranges), .vsel_reg = WM8400_LDO3_CONTROL, .vsel_mask = WM8400_LDO3_VSEL_MASK, .type = REGULATOR_VOLTAGE, @@ -191,6 +171,8 @@ static struct regulator_desc regulators[] = { .enable_reg = WM8400_LDO4_CONTROL, .enable_mask = WM8400_LDO4_ENA, .n_voltages = WM8400_LDO4_VSEL_MASK + 1, + .linear_ranges = wm8400_ldo_ranges, + .n_linear_ranges = ARRAY_SIZE(wm8400_ldo_ranges), .vsel_reg = WM8400_LDO4_CONTROL, .vsel_mask = WM8400_LDO4_VSEL_MASK, .type = REGULATOR_VOLTAGE, @@ -233,7 +215,7 @@ static int wm8400_regulator_probe(struct platform_device *pdev) struct regulator_dev *rdev; config.dev = &pdev->dev; - config.init_data = pdev->dev.platform_data; + config.init_data = dev_get_platdata(&pdev->dev); config.driver_data = wm8400; config.regmap = wm8400->regmap; diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c index 8f2a8a7a3f99..5ee2a208457c 100644 --- a/drivers/regulator/wm8994-regulator.c +++ b/drivers/regulator/wm8994-regulator.c @@ -125,7 +125,7 @@ static const struct regulator_init_data wm8994_ldo_default[] = { static int wm8994_ldo_probe(struct platform_device *pdev) { struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent); - struct wm8994_pdata *pdata = wm8994->dev->platform_data; + struct wm8994_pdata *pdata = dev_get_platdata(wm8994->dev); int id = pdev->id % ARRAY_SIZE(pdata->ldo); struct regulator_config config = { }; struct wm8994_ldo *ldo; diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 58bc6eb49de1..2ead7e78c456 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -930,7 +930,7 @@ dasd_use_raw_store(struct device *dev, struct device_attribute *attr, if (IS_ERR(devmap)) return PTR_ERR(devmap); - if ((strict_strtoul(buf, 10, &val) != 0) || val > 1) + if ((kstrtoul(buf, 10, &val) != 0) || val > 1) return -EINVAL; spin_lock(&dasd_devmap_lock); @@ -1225,7 +1225,7 @@ dasd_expires_store(struct device *dev, struct device_attribute *attr, if (IS_ERR(device)) return -ENODEV; - if ((strict_strtoul(buf, 10, &val) != 0) || + if ((kstrtoul(buf, 10, &val) != 0) || (val > DASD_EXPIRES_MAX) || val == 0) { dasd_put_device(device); return -EINVAL; @@ -1265,7 +1265,7 @@ dasd_retries_store(struct device *dev, struct device_attribute *attr, if (IS_ERR(device)) return -ENODEV; - if ((strict_strtoul(buf, 10, &val) != 0) || + if ((kstrtoul(buf, 10, &val) != 0) || (val > DASD_RETRIES_MAX)) { dasd_put_device(device); return -EINVAL; @@ -1307,7 +1307,7 @@ dasd_timeout_store(struct device *dev, struct device_attribute *attr, if (IS_ERR(device) || !device->block) return -ENODEV; - if ((strict_strtoul(buf, 10, &val) != 0) || + if ((kstrtoul(buf, 10, &val) != 0) || val > UINT_MAX / HZ) { dasd_put_device(device); return -EINVAL; diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index e61a6deea3c0..5adb2042e824 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -85,6 +85,8 @@ MODULE_DEVICE_TABLE(ccw, dasd_eckd_ids); static struct ccw_driver dasd_eckd_driver; /* see below */ +static void *rawpadpage; + #define INIT_CQR_OK 0 #define INIT_CQR_UNFORMATTED 1 #define INIT_CQR_ERROR 2 @@ -3237,18 +3239,26 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev, unsigned int seg_len, len_to_track_end; unsigned int first_offs; unsigned int cidaw, cplength, datasize; - sector_t first_trk, last_trk; + sector_t first_trk, last_trk, sectors; + sector_t start_padding_sectors, end_sector_offset, end_padding_sectors; unsigned int pfx_datasize; /* * raw track access needs to be mutiple of 64k and on 64k boundary + * For read requests we can fix an incorrect alignment by padding + * the request with dummy pages. */ - if ((blk_rq_pos(req) % DASD_RAW_SECTORS_PER_TRACK) != 0) { - cqr = ERR_PTR(-EINVAL); - goto out; - } - if (((blk_rq_pos(req) + blk_rq_sectors(req)) % - DASD_RAW_SECTORS_PER_TRACK) != 0) { + start_padding_sectors = blk_rq_pos(req) % DASD_RAW_SECTORS_PER_TRACK; + end_sector_offset = (blk_rq_pos(req) + blk_rq_sectors(req)) % + DASD_RAW_SECTORS_PER_TRACK; + end_padding_sectors = (DASD_RAW_SECTORS_PER_TRACK - end_sector_offset) % + DASD_RAW_SECTORS_PER_TRACK; + basedev = block->base; + if ((start_padding_sectors || end_padding_sectors) && + (rq_data_dir(req) == WRITE)) { + DBF_DEV_EVENT(DBF_ERR, basedev, + "raw write not track aligned (%lu,%lu) req %p", + start_padding_sectors, end_padding_sectors, req); cqr = ERR_PTR(-EINVAL); goto out; } @@ -3258,7 +3268,6 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev, DASD_RAW_SECTORS_PER_TRACK; trkcount = last_trk - first_trk + 1; first_offs = 0; - basedev = block->base; if (rq_data_dir(req) == READ) cmd = DASD_ECKD_CCW_READ_TRACK; @@ -3307,12 +3316,26 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev, } idaws = (unsigned long *)(cqr->data + pfx_datasize); - len_to_track_end = 0; - + if (start_padding_sectors) { + ccw[-1].flags |= CCW_FLAG_CC; + ccw->cmd_code = cmd; + /* maximum 3390 track size */ + ccw->count = 57326; + /* 64k map to one track */ + len_to_track_end = 65536 - start_padding_sectors * 512; + ccw->cda = (__u32)(addr_t)idaws; + ccw->flags |= CCW_FLAG_IDA; + ccw->flags |= CCW_FLAG_SLI; + ccw++; + for (sectors = 0; sectors < start_padding_sectors; sectors += 8) + idaws = idal_create_words(idaws, rawpadpage, PAGE_SIZE); + } rq_for_each_segment(bv, req, iter) { dst = page_address(bv->bv_page) + bv->bv_offset; seg_len = bv->bv_len; + if (cmd == DASD_ECKD_CCW_READ_TRACK) + memset(dst, 0, seg_len); if (!len_to_track_end) { ccw[-1].flags |= CCW_FLAG_CC; ccw->cmd_code = cmd; @@ -3328,7 +3351,8 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev, len_to_track_end -= seg_len; idaws = idal_create_words(idaws, dst, seg_len); } - + for (sectors = 0; sectors < end_padding_sectors; sectors += 8) + idaws = idal_create_words(idaws, rawpadpage, PAGE_SIZE); if (blk_noretry_request(req) || block->base->features & DASD_FEATURE_FAILFAST) set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); @@ -4479,12 +4503,19 @@ dasd_eckd_init(void) kfree(dasd_reserve_req); return -ENOMEM; } + rawpadpage = (void *)__get_free_page(GFP_KERNEL); + if (!rawpadpage) { + kfree(path_verification_worker); + kfree(dasd_reserve_req); + return -ENOMEM; + } ret = ccw_driver_register(&dasd_eckd_driver); if (!ret) wait_for_device_probe(); else { kfree(path_verification_worker); kfree(dasd_reserve_req); + free_page((unsigned long)rawpadpage); } return ret; } @@ -4495,6 +4526,7 @@ dasd_eckd_cleanup(void) ccw_driver_unregister(&dasd_eckd_driver); kfree(path_verification_worker); kfree(dasd_reserve_req); + free_page((unsigned long)rawpadpage); } module_init(dasd_eckd_init); diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c index 8d11f773a752..e1e88486b2b4 100644 --- a/drivers/s390/block/dasd_erp.c +++ b/drivers/s390/block/dasd_erp.c @@ -124,10 +124,15 @@ dasd_default_erp_action(struct dasd_ccw_req *cqr) struct dasd_ccw_req *dasd_default_erp_postaction(struct dasd_ccw_req *cqr) { int success; + unsigned long long startclk, stopclk; + struct dasd_device *startdev; BUG_ON(cqr->refers == NULL || cqr->function == NULL); success = cqr->status == DASD_CQR_DONE; + startclk = cqr->startclk; + stopclk = cqr->stopclk; + startdev = cqr->startdev; /* free all ERPs - but NOT the original cqr */ while (cqr->refers != NULL) { @@ -142,6 +147,9 @@ struct dasd_ccw_req *dasd_default_erp_postaction(struct dasd_ccw_req *cqr) } /* set corresponding status to original cqr */ + cqr->startclk = startclk; + cqr->stopclk = stopclk; + cqr->startdev = startdev; if (success) cqr->status = DASD_CQR_DONE; else { @@ -160,11 +168,13 @@ dasd_log_sense(struct dasd_ccw_req *cqr, struct irb *irb) device = cqr->startdev; if (cqr->intrc == -ETIMEDOUT) { - dev_err(&device->cdev->dev, "cqr %p timeout error", cqr); + dev_err(&device->cdev->dev, + "A timeout error occurred for cqr %p", cqr); return; } if (cqr->intrc == -ENOLINK) { - dev_err(&device->cdev->dev, "cqr %p transport error", cqr); + dev_err(&device->cdev->dev, + "A transport error occurred for cqr %p", cqr); return; } /* dump sense data */ diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c index 444d36183a25..944156207477 100644 --- a/drivers/s390/char/sclp_config.c +++ b/drivers/s390/char/sclp_config.c @@ -32,7 +32,7 @@ static void sclp_cpu_capability_notify(struct work_struct *work) struct device *dev; s390_adjust_jiffies(); - pr_warning("cpu capability changed.\n"); + pr_info("CPU capability may have changed\n"); get_online_cpus(); for_each_online_cpu(cpu) { dev = get_cpu_device(cpu); diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c index 91edbd7ee806..d028fd800c9c 100644 --- a/drivers/s390/cio/airq.c +++ b/drivers/s390/cio/airq.c @@ -81,15 +81,185 @@ void unregister_adapter_interrupt(struct airq_struct *airq) } EXPORT_SYMBOL(unregister_adapter_interrupt); -void do_adapter_IO(u8 isc) +static irqreturn_t do_airq_interrupt(int irq, void *dummy) { + struct tpi_info *tpi_info; struct airq_struct *airq; struct hlist_head *head; - head = &airq_lists[isc]; + __this_cpu_write(s390_idle.nohz_delay, 1); + tpi_info = (struct tpi_info *) &get_irq_regs()->int_code; + head = &airq_lists[tpi_info->isc]; rcu_read_lock(); hlist_for_each_entry_rcu(airq, head, list) if ((*airq->lsi_ptr & airq->lsi_mask) != 0) airq->handler(airq); rcu_read_unlock(); + + return IRQ_HANDLED; +} + +static struct irqaction airq_interrupt = { + .name = "AIO", + .handler = do_airq_interrupt, +}; + +void __init init_airq_interrupts(void) +{ + irq_set_chip_and_handler(THIN_INTERRUPT, + &dummy_irq_chip, handle_percpu_irq); + setup_irq(THIN_INTERRUPT, &airq_interrupt); +} + +/** + * airq_iv_create - create an interrupt vector + * @bits: number of bits in the interrupt vector + * @flags: allocation flags + * + * Returns a pointer to an interrupt vector structure + */ +struct airq_iv *airq_iv_create(unsigned long bits, unsigned long flags) +{ + struct airq_iv *iv; + unsigned long size; + + iv = kzalloc(sizeof(*iv), GFP_KERNEL); + if (!iv) + goto out; + iv->bits = bits; + size = BITS_TO_LONGS(bits) * sizeof(unsigned long); + iv->vector = kzalloc(size, GFP_KERNEL); + if (!iv->vector) + goto out_free; + if (flags & AIRQ_IV_ALLOC) { + iv->avail = kmalloc(size, GFP_KERNEL); + if (!iv->avail) + goto out_free; + memset(iv->avail, 0xff, size); + iv->end = 0; + } else + iv->end = bits; + if (flags & AIRQ_IV_BITLOCK) { + iv->bitlock = kzalloc(size, GFP_KERNEL); + if (!iv->bitlock) + goto out_free; + } + if (flags & AIRQ_IV_PTR) { + size = bits * sizeof(unsigned long); + iv->ptr = kzalloc(size, GFP_KERNEL); + if (!iv->ptr) + goto out_free; + } + if (flags & AIRQ_IV_DATA) { + size = bits * sizeof(unsigned int); + iv->data = kzalloc(size, GFP_KERNEL); + if (!iv->data) + goto out_free; + } + spin_lock_init(&iv->lock); + return iv; + +out_free: + kfree(iv->ptr); + kfree(iv->bitlock); + kfree(iv->avail); + kfree(iv->vector); + kfree(iv); +out: + return NULL; +} +EXPORT_SYMBOL(airq_iv_create); + +/** + * airq_iv_release - release an interrupt vector + * @iv: pointer to interrupt vector structure + */ +void airq_iv_release(struct airq_iv *iv) +{ + kfree(iv->data); + kfree(iv->ptr); + kfree(iv->bitlock); + kfree(iv->vector); + kfree(iv->avail); + kfree(iv); +} +EXPORT_SYMBOL(airq_iv_release); + +/** + * airq_iv_alloc_bit - allocate an irq bit from an interrupt vector + * @iv: pointer to an interrupt vector structure + * + * Returns the bit number of the allocated irq, or -1UL if no bit + * is available or the AIRQ_IV_ALLOC flag has not been specified + */ +unsigned long airq_iv_alloc_bit(struct airq_iv *iv) +{ + const unsigned long be_to_le = BITS_PER_LONG - 1; + unsigned long bit; + + if (!iv->avail) + return -1UL; + spin_lock(&iv->lock); + bit = find_first_bit_left(iv->avail, iv->bits); + if (bit < iv->bits) { + clear_bit(bit ^ be_to_le, iv->avail); + if (bit >= iv->end) + iv->end = bit + 1; + } else + bit = -1UL; + spin_unlock(&iv->lock); + return bit; + +} +EXPORT_SYMBOL(airq_iv_alloc_bit); + +/** + * airq_iv_free_bit - free an irq bit of an interrupt vector + * @iv: pointer to interrupt vector structure + * @bit: number of the irq bit to free + */ +void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit) +{ + const unsigned long be_to_le = BITS_PER_LONG - 1; + + if (!iv->avail) + return; + spin_lock(&iv->lock); + /* Clear (possibly left over) interrupt bit */ + clear_bit(bit ^ be_to_le, iv->vector); + /* Make the bit position available again */ + set_bit(bit ^ be_to_le, iv->avail); + if (bit == iv->end - 1) { + /* Find new end of bit-field */ + while (--iv->end > 0) + if (!test_bit((iv->end - 1) ^ be_to_le, iv->avail)) + break; + } + spin_unlock(&iv->lock); +} +EXPORT_SYMBOL(airq_iv_free_bit); + +/** + * airq_iv_scan - scan interrupt vector for non-zero bits + * @iv: pointer to interrupt vector structure + * @start: bit number to start the search + * @end: bit number to end the search + * + * Returns the bit number of the next non-zero interrupt bit, or + * -1UL if the scan completed without finding any more any non-zero bits. + */ +unsigned long airq_iv_scan(struct airq_iv *iv, unsigned long start, + unsigned long end) +{ + const unsigned long be_to_le = BITS_PER_LONG - 1; + unsigned long bit; + + /* Find non-zero bit starting from 'ivs->next'. */ + bit = find_next_bit_left(iv->vector, end, start); + if (bit >= end) + return -1UL; + /* Clear interrupt bit (find left uses big-endian bit numbers) */ + clear_bit(bit ^ be_to_le, iv->vector); + return bit; } +EXPORT_SYMBOL(airq_iv_scan); diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 84846c2b96d3..959135a01847 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -137,7 +137,7 @@ static ssize_t ccwgroup_online_store(struct device *dev, if (!try_module_get(gdrv->driver.owner)) return -EINVAL; - ret = strict_strtoul(buf, 0, &value); + ret = kstrtoul(buf, 0, &value); if (ret) goto out; diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 4eeb4a6bf207..d7da67a31c77 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -561,37 +561,23 @@ out: } /* - * do_IRQ() handles all normal I/O device IRQ's (the special - * SMP cross-CPU interrupts have their own specific - * handlers). - * + * do_cio_interrupt() handles all normal I/O device IRQ's */ -void __irq_entry do_IRQ(struct pt_regs *regs) +static irqreturn_t do_cio_interrupt(int irq, void *dummy) { - struct tpi_info *tpi_info = (struct tpi_info *) ®s->int_code; + struct tpi_info *tpi_info; struct subchannel *sch; struct irb *irb; - struct pt_regs *old_regs; - old_regs = set_irq_regs(regs); - irq_enter(); __this_cpu_write(s390_idle.nohz_delay, 1); - if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) - /* Serve timer interrupts first. */ - clock_comparator_work(); - - kstat_incr_irqs_this_cpu(IO_INTERRUPT, NULL); + tpi_info = (struct tpi_info *) &get_irq_regs()->int_code; irb = (struct irb *) &S390_lowcore.irb; - if (tpi_info->adapter_IO) { - do_adapter_IO(tpi_info->isc); - goto out; - } sch = (struct subchannel *)(unsigned long) tpi_info->intparm; if (!sch) { /* Clear pending interrupt condition. */ inc_irq_stat(IRQIO_CIO); tsch(tpi_info->schid, irb); - goto out; + return IRQ_HANDLED; } spin_lock(sch->lock); /* Store interrupt response block to lowcore. */ @@ -606,9 +592,23 @@ void __irq_entry do_IRQ(struct pt_regs *regs) } else inc_irq_stat(IRQIO_CIO); spin_unlock(sch->lock); -out: - irq_exit(); - set_irq_regs(old_regs); + + return IRQ_HANDLED; +} + +static struct irq_desc *irq_desc_io; + +static struct irqaction io_interrupt = { + .name = "IO", + .handler = do_cio_interrupt, +}; + +void __init init_cio_interrupts(void) +{ + irq_set_chip_and_handler(IO_INTERRUPT, + &dummy_irq_chip, handle_percpu_irq); + setup_irq(IO_INTERRUPT, &io_interrupt); + irq_desc_io = irq_to_desc(IO_INTERRUPT); } #ifdef CONFIG_CCW_CONSOLE @@ -635,7 +635,7 @@ void cio_tsch(struct subchannel *sch) local_bh_disable(); irq_enter(); } - kstat_incr_irqs_this_cpu(IO_INTERRUPT, NULL); + kstat_incr_irqs_this_cpu(IO_INTERRUPT, irq_desc_io); if (sch->driver && sch->driver->irq) sch->driver->irq(sch); else diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h index d62f5e7f3cf1..d42f67412bd8 100644 --- a/drivers/s390/cio/cio.h +++ b/drivers/s390/cio/cio.h @@ -121,9 +121,6 @@ extern int cio_commit_config(struct subchannel *sch); int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key); int cio_tm_intrg(struct subchannel *sch); -void do_adapter_IO(u8 isc); -void do_IRQ(struct pt_regs *); - /* Use with care. */ #ifdef CONFIG_CCW_CONSOLE extern struct subchannel *cio_probe_console(void); diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c index 4495e0627a40..23054f8fa9fc 100644 --- a/drivers/s390/cio/cmf.c +++ b/drivers/s390/cio/cmf.c @@ -1182,7 +1182,7 @@ static ssize_t cmb_enable_store(struct device *dev, int ret; unsigned long val; - ret = strict_strtoul(buf, 16, &val); + ret = kstrtoul(buf, 16, &val); if (ret) return ret; diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 1ebe5d3ddebb..8c2cb87bccc5 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -546,7 +546,9 @@ static int slow_eval_unknown_fn(struct subchannel_id schid, void *data) case -ENOMEM: case -EIO: /* These should abort looping */ + spin_lock_irq(&slow_subchannel_lock); idset_sch_del_subseq(slow_subchannel_set, schid); + spin_unlock_irq(&slow_subchannel_lock); break; default: rc = 0; @@ -740,7 +742,7 @@ css_cm_enable_store(struct device *dev, struct device_attribute *attr, int ret; unsigned long val; - ret = strict_strtoul(buf, 16, &val); + ret = kstrtoul(buf, 16, &val); if (ret) return ret; mutex_lock(&css->mutex); diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index b1de60335238..29351321bad6 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -130,8 +130,6 @@ struct channel_subsystem { extern struct channel_subsystem *channel_subsystems[]; -void channel_subsystem_reinit(void); - /* Helper functions to build lists for the slow path. */ void css_schedule_eval(struct subchannel_id schid); void css_schedule_eval_all(void); diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 1ab5f6c36d9b..e4a7ab2bb629 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -564,7 +564,7 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr, ret = 0; } else { force = 0; - ret = strict_strtoul(buf, 16, &i); + ret = kstrtoul(buf, 16, &i); } if (ret) goto out; diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index d1c8025b0b03..adef5f5de118 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -208,7 +208,7 @@ static ssize_t qeth_l3_dev_sniffer_store(struct device *dev, goto out; } - rc = strict_strtoul(buf, 16, &i); + rc = kstrtoul(buf, 16, &i); if (rc) { rc = -EINVAL; goto out; diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 1d4c8fe72752..c82fe65c4128 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -102,10 +102,13 @@ static void zfcp_erp_action_dismiss_port(struct zfcp_port *port) if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_INUSE) zfcp_erp_action_dismiss(&port->erp_action); - else - shost_for_each_device(sdev, port->adapter->scsi_host) + else { + spin_lock(port->adapter->scsi_host->host_lock); + __shost_for_each_device(sdev, port->adapter->scsi_host) if (sdev_to_zfcp(sdev)->port == port) zfcp_erp_action_dismiss_lun(sdev); + spin_unlock(port->adapter->scsi_host->host_lock); + } } static void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter) @@ -592,9 +595,11 @@ static void _zfcp_erp_lun_reopen_all(struct zfcp_port *port, int clear, { struct scsi_device *sdev; - shost_for_each_device(sdev, port->adapter->scsi_host) + spin_lock(port->adapter->scsi_host->host_lock); + __shost_for_each_device(sdev, port->adapter->scsi_host) if (sdev_to_zfcp(sdev)->port == port) _zfcp_erp_lun_reopen(sdev, clear, id, 0); + spin_unlock(port->adapter->scsi_host->host_lock); } static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act) @@ -1434,8 +1439,10 @@ void zfcp_erp_set_adapter_status(struct zfcp_adapter *adapter, u32 mask) atomic_set_mask(common_mask, &port->status); read_unlock_irqrestore(&adapter->port_list_lock, flags); - shost_for_each_device(sdev, adapter->scsi_host) + spin_lock_irqsave(adapter->scsi_host->host_lock, flags); + __shost_for_each_device(sdev, adapter->scsi_host) atomic_set_mask(common_mask, &sdev_to_zfcp(sdev)->status); + spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags); } /** @@ -1469,11 +1476,13 @@ void zfcp_erp_clear_adapter_status(struct zfcp_adapter *adapter, u32 mask) } read_unlock_irqrestore(&adapter->port_list_lock, flags); - shost_for_each_device(sdev, adapter->scsi_host) { + spin_lock_irqsave(adapter->scsi_host->host_lock, flags); + __shost_for_each_device(sdev, adapter->scsi_host) { atomic_clear_mask(common_mask, &sdev_to_zfcp(sdev)->status); if (clear_counter) atomic_set(&sdev_to_zfcp(sdev)->erp_counter, 0); } + spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags); } /** @@ -1487,16 +1496,19 @@ void zfcp_erp_set_port_status(struct zfcp_port *port, u32 mask) { struct scsi_device *sdev; u32 common_mask = mask & ZFCP_COMMON_FLAGS; + unsigned long flags; atomic_set_mask(mask, &port->status); if (!common_mask) return; - shost_for_each_device(sdev, port->adapter->scsi_host) + spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags); + __shost_for_each_device(sdev, port->adapter->scsi_host) if (sdev_to_zfcp(sdev)->port == port) atomic_set_mask(common_mask, &sdev_to_zfcp(sdev)->status); + spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags); } /** @@ -1511,6 +1523,7 @@ void zfcp_erp_clear_port_status(struct zfcp_port *port, u32 mask) struct scsi_device *sdev; u32 common_mask = mask & ZFCP_COMMON_FLAGS; u32 clear_counter = mask & ZFCP_STATUS_COMMON_ERP_FAILED; + unsigned long flags; atomic_clear_mask(mask, &port->status); @@ -1520,13 +1533,15 @@ void zfcp_erp_clear_port_status(struct zfcp_port *port, u32 mask) if (clear_counter) atomic_set(&port->erp_counter, 0); - shost_for_each_device(sdev, port->adapter->scsi_host) + spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags); + __shost_for_each_device(sdev, port->adapter->scsi_host) if (sdev_to_zfcp(sdev)->port == port) { atomic_clear_mask(common_mask, &sdev_to_zfcp(sdev)->status); if (clear_counter) atomic_set(&sdev_to_zfcp(sdev)->erp_counter, 0); } + spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags); } /** diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index 665e3cfaaf85..de0598eaacd2 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -224,11 +224,9 @@ int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, static int zfcp_qdio_sbal_check(struct zfcp_qdio *qdio) { - spin_lock_irq(&qdio->req_q_lock); if (atomic_read(&qdio->req_q_free) || !(atomic_read(&qdio->adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) return 1; - spin_unlock_irq(&qdio->req_q_lock); return 0; } @@ -246,9 +244,8 @@ int zfcp_qdio_sbal_get(struct zfcp_qdio *qdio) { long ret; - spin_unlock_irq(&qdio->req_q_lock); - ret = wait_event_interruptible_timeout(qdio->req_q_wq, - zfcp_qdio_sbal_check(qdio), 5 * HZ); + ret = wait_event_interruptible_lock_irq_timeout(qdio->req_q_wq, + zfcp_qdio_sbal_check(qdio), qdio->req_q_lock, 5 * HZ); if (!(atomic_read(&qdio->adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) return -EIO; @@ -262,7 +259,6 @@ int zfcp_qdio_sbal_get(struct zfcp_qdio *qdio) zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdsbg_1"); } - spin_lock_irq(&qdio->req_q_lock); return -EIO; } diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index 3f01bbf0609f..890639274bcf 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -27,6 +27,16 @@ static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \ static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \ zfcp_sysfs_##_feat##_##_name##_show, NULL); +#define ZFCP_DEFINE_ATTR_CONST(_feat, _name, _format, _value) \ +static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \ + struct device_attribute *at,\ + char *buf) \ +{ \ + return sprintf(buf, _format, _value); \ +} \ +static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \ + zfcp_sysfs_##_feat##_##_name##_show, NULL); + #define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \ static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \ struct device_attribute *at,\ @@ -75,6 +85,8 @@ ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n", ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n", (zfcp_unit_sdev_status(unit) & ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0); +ZFCP_DEFINE_ATTR_CONST(unit, access_shared, "%d\n", 0); +ZFCP_DEFINE_ATTR_CONST(unit, access_readonly, "%d\n", 0); static ssize_t zfcp_sysfs_port_failed_show(struct device *dev, struct device_attribute *attr, @@ -347,6 +359,8 @@ static struct attribute *zfcp_unit_attrs[] = { &dev_attr_unit_in_recovery.attr, &dev_attr_unit_status.attr, &dev_attr_unit_access_denied.attr, + &dev_attr_unit_access_shared.attr, + &dev_attr_unit_access_readonly.attr, NULL }; static struct attribute_group zfcp_unit_attr_group = { diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 48b2918e0d65..92ff027746f2 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1353,7 +1353,6 @@ config SCSI_LPFC tristate "Emulex LightPulse Fibre Channel Support" depends on PCI && SCSI select SCSI_FC_ATTRS - select GENERIC_CSUM select CRC_T10DIF help This lpfc driver supports the Emulex LightPulse diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 5456f5c73593..4a2195752198 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -221,7 +221,7 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha) pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt = 0x01; for (i = 0; i < PM8001_MAX_INB_NUM; i++) { pm8001_ha->inbnd_q_tbl[i].element_pri_size_cnt = - PM8001_MPI_QUEUE | (64 << 16) | (0x00<<30); + PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x00<<30); pm8001_ha->inbnd_q_tbl[i].upper_base_addr = pm8001_ha->memoryMap.region[IB + i].phys_addr_hi; pm8001_ha->inbnd_q_tbl[i].lower_base_addr = @@ -247,7 +247,7 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha) } for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) { pm8001_ha->outbnd_q_tbl[i].element_size_cnt = - PM8001_MPI_QUEUE | (64 << 16) | (0x01<<30); + PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30); pm8001_ha->outbnd_q_tbl[i].upper_base_addr = pm8001_ha->memoryMap.region[OB + i].phys_addr_hi; pm8001_ha->outbnd_q_tbl[i].lower_base_addr = diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 7f77210f5cf3..9f91030211e8 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -275,7 +275,7 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha) for (i = 0; i < PM8001_MAX_SPCV_INB_NUM; i++) { pm8001_ha->inbnd_q_tbl[i].element_pri_size_cnt = - PM8001_MPI_QUEUE | (64 << 16) | (0x00<<30); + PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x00<<30); pm8001_ha->inbnd_q_tbl[i].upper_base_addr = pm8001_ha->memoryMap.region[IB + i].phys_addr_hi; pm8001_ha->inbnd_q_tbl[i].lower_base_addr = @@ -301,7 +301,7 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha) } for (i = 0; i < PM8001_MAX_SPCV_OUTB_NUM; i++) { pm8001_ha->outbnd_q_tbl[i].element_size_cnt = - PM8001_MPI_QUEUE | (64 << 16) | (0x01<<30); + PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30); pm8001_ha->outbnd_q_tbl[i].upper_base_addr = pm8001_ha->memoryMap.region[OB + i].phys_addr_hi; pm8001_ha->outbnd_q_tbl[i].lower_base_addr = diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 89cbbabaff44..0170d4c4a8a3 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -70,14 +70,14 @@ config SPI_ATH79 config SPI_ATMEL tristate "Atmel SPI Controller" - depends on (ARCH_AT91 || AVR32) + depends on (ARCH_AT91 || AVR32 || COMPILE_TEST) help This selects a driver for the Atmel SPI Controller, present on many AT32 (AVR32) and AT91 (ARM) chips. config SPI_BCM2835 tristate "BCM2835 SPI controller" - depends on ARCH_BCM2835 + depends on ARCH_BCM2835 || COMPILE_TEST help This selects a driver for the Broadcom BCM2835 SPI master. @@ -88,10 +88,17 @@ config SPI_BCM2835 config SPI_BFIN5XX tristate "SPI controller driver for ADI Blackfin5xx" - depends on BLACKFIN + depends on BLACKFIN && !BF60x help This is the SPI controller master driver for Blackfin 5xx processor. +config SPI_BFIN_V3 + tristate "SPI controller v3 for Blackfin" + depends on BF60x + help + This is the SPI controller v3 master driver + found on Blackfin 60x processor. + config SPI_BFIN_SPORT tristate "SPI bus via Blackfin SPORT" depends on BLACKFIN @@ -151,15 +158,22 @@ config SPI_COLDFIRE_QSPI config SPI_DAVINCI tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" - depends on ARCH_DAVINCI + depends on ARCH_DAVINCI || ARCH_KEYSTONE select SPI_BITBANG select TI_EDMA help SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. +config SPI_EFM32 + tristate "EFM32 SPI controller" + depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) + select SPI_BITBANG + help + Driver for the spi controller found on Energy Micro's EFM32 SoCs. + config SPI_EP93XX tristate "Cirrus Logic EP93xx SPI controller" - depends on ARCH_EP93XX + depends on ARCH_EP93XX || COMPILE_TEST help This enables using the Cirrus EP93xx SPI controller in master mode. @@ -191,7 +205,7 @@ config SPI_GPIO config SPI_IMX tristate "Freescale i.MX SPI controllers" - depends on ARCH_MXC + depends on ARCH_MXC || COMPILE_TEST select SPI_BITBANG default m if IMX_HAVE_PLATFORM_SPI_IMX help @@ -248,6 +262,13 @@ config SPI_FSL_SPI This also enables using the Aeroflex Gaisler GRLIB SPI controller in master mode. +config SPI_FSL_DSPI + tristate "Freescale DSPI controller" + select SPI_BITBANG + help + This enables support for the Freescale DSPI controller in master + mode. VF610 platform uses the controller. + config SPI_FSL_ESPI bool "Freescale eSPI controller" depends on FSL_SOC @@ -280,20 +301,28 @@ config SPI_OMAP_UWIRE config SPI_OMAP24XX tristate "McSPI driver for OMAP" - depends on ARCH_OMAP2PLUS + depends on ARCH_OMAP2PLUS || COMPILE_TEST help SPI master controller for OMAP24XX and later Multichannel SPI (McSPI) modules. +config SPI_TI_QSPI + tristate "DRA7xxx QSPI controller support" + depends on ARCH_OMAP2PLUS || COMPILE_TEST + help + QSPI master controller for DRA7xxx used for flash devices. + This device supports single, dual and quad read support, while + it only supports single write mode. + config SPI_OMAP_100K tristate "OMAP SPI 100K" - depends on ARCH_OMAP850 || ARCH_OMAP730 + depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST help OMAP SPI 100K master controller for omap7xx boards. config SPI_ORION tristate "Orion SPI master" - depends on PLAT_ORION + depends on PLAT_ORION || COMPILE_TEST help This enables using the SPI master controller on the Orion chips. @@ -341,7 +370,7 @@ config SPI_PXA2XX_PCI config SPI_RSPI tristate "Renesas RSPI controller" - depends on SUPERH + depends on SUPERH && SH_DMAE_BASE help SPI driver for Renesas RSPI blocks. @@ -385,7 +414,7 @@ config SPI_SH_MSIOF config SPI_SH tristate "SuperH SPI controller" - depends on SUPERH + depends on SUPERH || COMPILE_TEST help SPI driver for SuperH SPI blocks. @@ -398,13 +427,13 @@ config SPI_SH_SCI config SPI_SH_HSPI tristate "SuperH HSPI controller" - depends on ARCH_SHMOBILE + depends on ARCH_SHMOBILE || COMPILE_TEST help SPI driver for SuperH HSPI blocks. config SPI_SIRF tristate "CSR SiRFprimaII SPI controller" - depends on ARCH_SIRF + depends on SIRF_DMA select SPI_BITBANG help SPI driver for CSR SiRFprimaII SoCs @@ -418,7 +447,7 @@ config SPI_MXS config SPI_TEGRA114 tristate "NVIDIA Tegra114 SPI Controller" - depends on ARCH_TEGRA && TEGRA20_APB_DMA + depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST help SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller is different than the older SoCs SPI controller and also register interface @@ -426,7 +455,7 @@ config SPI_TEGRA114 config SPI_TEGRA20_SFLASH tristate "Nvidia Tegra20 Serial flash Controller" - depends on ARCH_TEGRA + depends on ARCH_TEGRA || COMPILE_TEST help SPI driver for Nvidia Tegra20 Serial flash Controller interface. The main usecase of this controller is to use spi flash as boot @@ -434,7 +463,7 @@ config SPI_TEGRA20_SFLASH config SPI_TEGRA20_SLINK tristate "Nvidia Tegra20/Tegra30 SLINK Controller" - depends on ARCH_TEGRA && TEGRA20_APB_DMA + depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST help SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. @@ -457,7 +486,7 @@ config SPI_TOPCLIFF_PCH config SPI_TXX9 tristate "Toshiba TXx9 SPI controller" - depends on GPIOLIB && CPU_TX49XX + depends on GPIOLIB && (CPU_TX49XX || COMPILE_TEST) help SPI driver for Toshiba TXx9 MIPS SoCs diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 33f9c09561e7..ab8d8644af0e 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_SPI_AU1550) += spi-au1550.o obj-$(CONFIG_SPI_BCM2835) += spi-bcm2835.o obj-$(CONFIG_SPI_BCM63XX) += spi-bcm63xx.o obj-$(CONFIG_SPI_BFIN5XX) += spi-bfin5xx.o +obj-$(CONFIG_SPI_BFIN_V3) += spi-bfin-v3.o obj-$(CONFIG_SPI_BFIN_SPORT) += spi-bfin-sport.o obj-$(CONFIG_SPI_BITBANG) += spi-bitbang.o obj-$(CONFIG_SPI_BUTTERFLY) += spi-butterfly.o @@ -27,9 +28,11 @@ obj-$(CONFIG_SPI_DESIGNWARE) += spi-dw.o obj-$(CONFIG_SPI_DW_MMIO) += spi-dw-mmio.o obj-$(CONFIG_SPI_DW_PCI) += spi-dw-midpci.o spi-dw-midpci-objs := spi-dw-pci.o spi-dw-mid.o +obj-$(CONFIG_SPI_EFM32) += spi-efm32.o obj-$(CONFIG_SPI_EP93XX) += spi-ep93xx.o obj-$(CONFIG_SPI_FALCON) += spi-falcon.o obj-$(CONFIG_SPI_FSL_CPM) += spi-fsl-cpm.o +obj-$(CONFIG_SPI_FSL_DSPI) += spi-fsl-dspi.o obj-$(CONFIG_SPI_FSL_LIB) += spi-fsl-lib.o obj-$(CONFIG_SPI_FSL_ESPI) += spi-fsl-espi.o obj-$(CONFIG_SPI_FSL_SPI) += spi-fsl-spi.o @@ -46,6 +49,7 @@ obj-$(CONFIG_SPI_OCTEON) += spi-octeon.o obj-$(CONFIG_SPI_OMAP_UWIRE) += spi-omap-uwire.o obj-$(CONFIG_SPI_OMAP_100K) += spi-omap-100k.o obj-$(CONFIG_SPI_OMAP24XX) += spi-omap2-mcspi.o +obj-$(CONFIG_SPI_TI_QSPI) += spi-ti-qspi.o obj-$(CONFIG_SPI_ORION) += spi-orion.o obj-$(CONFIG_SPI_PL022) += spi-pl022.o obj-$(CONFIG_SPI_PPC4xx) += spi-ppc4xx.o diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c index 81b9adb6e766..f38855f76536 100644 --- a/drivers/spi/spi-altera.c +++ b/drivers/spi/spi-altera.c @@ -103,16 +103,6 @@ static void altera_spi_chipsel(struct spi_device *spi, int value) } } -static int altera_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t) -{ - return 0; -} - -static int altera_spi_setup(struct spi_device *spi) -{ - return 0; -} - static inline unsigned int hw_txbyte(struct altera_spi *hw, int count) { if (hw->tx) { @@ -134,7 +124,7 @@ static int altera_spi_txrx(struct spi_device *spi, struct spi_transfer *t) hw->tx = t->tx_buf; hw->rx = t->rx_buf; hw->count = 0; - hw->bytes_per_word = t->bits_per_word / 8; + hw->bytes_per_word = DIV_ROUND_UP(t->bits_per_word, 8); hw->len = t->len / hw->bytes_per_word; if (hw->irq >= 0) { @@ -150,12 +140,12 @@ static int altera_spi_txrx(struct spi_device *spi, struct spi_transfer *t) hw->imr &= ~ALTERA_SPI_CONTROL_IRRDY_MSK; writel(hw->imr, hw->base + ALTERA_SPI_CONTROL); } else { - /* send the first byte */ - writel(hw_txbyte(hw, 0), hw->base + ALTERA_SPI_TXDATA); - - while (1) { + while (hw->count < hw->len) { unsigned int rxd; + writel(hw_txbyte(hw, hw->count), + hw->base + ALTERA_SPI_TXDATA); + while (!(readl(hw->base + ALTERA_SPI_STATUS) & ALTERA_SPI_STATUS_RRDY_MSK)) cpu_relax(); @@ -174,14 +164,7 @@ static int altera_spi_txrx(struct spi_device *spi, struct spi_transfer *t) } hw->count++; - - if (hw->count < hw->len) - writel(hw_txbyte(hw, hw->count), - hw->base + ALTERA_SPI_TXDATA); - else - break; } - } return hw->count * hw->bytes_per_word; @@ -217,7 +200,7 @@ static irqreturn_t altera_spi_irq(int irq, void *dev) static int altera_spi_probe(struct platform_device *pdev) { - struct altera_spi_platform_data *platp = pdev->dev.platform_data; + struct altera_spi_platform_data *platp = dev_get_platdata(&pdev->dev); struct altera_spi *hw; struct spi_master *master; struct resource *res; @@ -231,7 +214,6 @@ static int altera_spi_probe(struct platform_device *pdev) master->bus_num = pdev->id; master->num_chipselect = 16; master->mode_bits = SPI_CS_HIGH; - master->setup = altera_spi_setup; hw = spi_master_get_devdata(master); platform_set_drvdata(pdev, hw); @@ -240,21 +222,16 @@ static int altera_spi_probe(struct platform_device *pdev) hw->bitbang.master = spi_master_get(master); if (!hw->bitbang.master) return err; - hw->bitbang.setup_transfer = altera_spi_setupxfer; hw->bitbang.chipselect = altera_spi_chipsel; hw->bitbang.txrx_bufs = altera_spi_txrx; /* find and map our resources */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - goto exit_busy; - if (!devm_request_mem_region(&pdev->dev, res->start, resource_size(res), - pdev->name)) - goto exit_busy; - hw->base = devm_ioremap_nocache(&pdev->dev, res->start, - resource_size(res)); - if (!hw->base) - goto exit_busy; + hw->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hw->base)) { + err = PTR_ERR(hw->base); + goto exit; + } /* program defaults into the registers */ hw->imr = 0; /* disable spi interrupts */ writel(hw->imr, hw->base + ALTERA_SPI_CONTROL); @@ -281,9 +258,6 @@ static int altera_spi_probe(struct platform_device *pdev) dev_info(&pdev->dev, "base %p, irq %d\n", hw->base, hw->irq); return 0; - -exit_busy: - err = -EBUSY; exit: spi_master_put(master); return err; diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c index 0e06407a4670..37bad952ab38 100644 --- a/drivers/spi/spi-ath79.c +++ b/drivers/spi/spi-ath79.c @@ -221,7 +221,7 @@ static int ath79_spi_probe(struct platform_device *pdev) sp = spi_master_get_devdata(master); platform_set_drvdata(pdev, sp); - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32); master->setup = ath79_spi_setup; diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index ea1ec009f44d..fd7cc566095a 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -360,12 +360,12 @@ static void cs_deactivate(struct atmel_spi *as, struct spi_device *spi) gpio_set_value(asd->npcs_pin, !active); } -static void atmel_spi_lock(struct atmel_spi *as) +static void atmel_spi_lock(struct atmel_spi *as) __acquires(&as->lock) { spin_lock_irqsave(&as->lock, as->flags); } -static void atmel_spi_unlock(struct atmel_spi *as) +static void atmel_spi_unlock(struct atmel_spi *as) __releases(&as->lock) { spin_unlock_irqrestore(&as->lock, as->flags); } @@ -629,9 +629,9 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master, goto err_dma; dev_dbg(master->dev.parent, - " start dma xfer %p: len %u tx %p/%08x rx %p/%08x\n", - xfer, xfer->len, xfer->tx_buf, xfer->tx_dma, - xfer->rx_buf, xfer->rx_dma); + " start dma xfer %p: len %u tx %p/%08llx rx %p/%08llx\n", + xfer, xfer->len, xfer->tx_buf, (unsigned long long)xfer->tx_dma, + xfer->rx_buf, (unsigned long long)xfer->rx_dma); /* Enable relevant interrupts */ spi_writel(as, IER, SPI_BIT(OVRES)); @@ -732,9 +732,10 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master, spi_writel(as, TCR, len); dev_dbg(&msg->spi->dev, - " start xfer %p: len %u tx %p/%08x rx %p/%08x\n", - xfer, xfer->len, xfer->tx_buf, xfer->tx_dma, - xfer->rx_buf, xfer->rx_dma); + " start xfer %p: len %u tx %p/%08llx rx %p/%08llx\n", + xfer, xfer->len, xfer->tx_buf, + (unsigned long long)xfer->tx_dma, xfer->rx_buf, + (unsigned long long)xfer->rx_dma); } else { xfer = as->next_transfer; remaining = as->next_remaining_bytes; @@ -771,9 +772,10 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master, spi_writel(as, TNCR, len); dev_dbg(&msg->spi->dev, - " next xfer %p: len %u tx %p/%08x rx %p/%08x\n", - xfer, xfer->len, xfer->tx_buf, xfer->tx_dma, - xfer->rx_buf, xfer->rx_dma); + " next xfer %p: len %u tx %p/%08llx rx %p/%08llx\n", + xfer, xfer->len, xfer->tx_buf, + (unsigned long long)xfer->tx_dma, xfer->rx_buf, + (unsigned long long)xfer->rx_dma); ieval = SPI_BIT(ENDRX) | SPI_BIT(OVRES); } else { spi_writel(as, RNCR, 0); @@ -1579,7 +1581,9 @@ static int atmel_spi_probe(struct platform_device *pdev) goto out_unmap_regs; /* Initialize the hardware */ - clk_enable(clk); + ret = clk_prepare_enable(clk); + if (ret) + goto out_unmap_regs; spi_writel(as, CR, SPI_BIT(SWRST)); spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */ if (as->caps.has_wdrbt) { @@ -1609,7 +1613,7 @@ out_free_dma: spi_writel(as, CR, SPI_BIT(SWRST)); spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */ - clk_disable(clk); + clk_disable_unprepare(clk); free_irq(irq, master); out_unmap_regs: iounmap(as->regs); @@ -1661,7 +1665,7 @@ static int atmel_spi_remove(struct platform_device *pdev) dma_free_coherent(&pdev->dev, BUFFER_SIZE, as->buffer, as->buffer_dma); - clk_disable(as->clk); + clk_disable_unprepare(as->clk); clk_put(as->clk); free_irq(as->irq, master); iounmap(as->regs); @@ -1678,7 +1682,7 @@ static int atmel_spi_suspend(struct platform_device *pdev, pm_message_t mesg) struct spi_master *master = platform_get_drvdata(pdev); struct atmel_spi *as = spi_master_get_devdata(master); - clk_disable(as->clk); + clk_disable_unprepare(as->clk); return 0; } @@ -1687,7 +1691,7 @@ static int atmel_spi_resume(struct platform_device *pdev) struct spi_master *master = platform_get_drvdata(pdev); struct atmel_spi *as = spi_master_get_devdata(master); - clk_enable(as->clk); + return clk_prepare_enable(as->clk); return 0; } diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c index e1965553ab79..1d00d9b397dd 100644 --- a/drivers/spi/spi-au1550.c +++ b/drivers/spi/spi-au1550.c @@ -776,7 +776,7 @@ static int au1550_spi_probe(struct platform_device *pdev) hw = spi_master_get_devdata(master); hw->master = spi_master_get(master); - hw->pdata = pdev->dev.platform_data; + hw->pdata = dev_get_platdata(&pdev->dev); hw->dev = &pdev->dev; if (hw->pdata == NULL) { diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index a4185e492321..52c81481c5c7 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -314,7 +314,7 @@ static int bcm2835_spi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, master); master->mode_bits = BCM2835_SPI_MODE_BITS; - master->bits_per_word_mask = BIT(8 - 1); + master->bits_per_word_mask = SPI_BPW_MASK(8); master->bus_num = -1; master->num_chipselect = 3; master->transfer_one_message = bcm2835_spi_transfer_one; @@ -325,12 +325,6 @@ static int bcm2835_spi_probe(struct platform_device *pdev) init_completion(&bs->done); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "could not get memory resource\n"); - err = -ENODEV; - goto out_master_put; - } - bs->regs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(bs->regs)) { err = PTR_ERR(bs->regs); @@ -383,7 +377,7 @@ out_master_put: static int bcm2835_spi_remove(struct platform_device *pdev) { - struct spi_master *master = platform_get_drvdata(pdev); + struct spi_master *master = spi_master_get(platform_get_drvdata(pdev)); struct bcm2835_spi *bs = spi_master_get_devdata(master); free_irq(bs->irq, master); diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index 9fd7a39b8029..536b0e363826 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -231,24 +231,6 @@ static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *first, return 0; } -static int bcm63xx_spi_prepare_transfer(struct spi_master *master) -{ - struct bcm63xx_spi *bs = spi_master_get_devdata(master); - - pm_runtime_get_sync(&bs->pdev->dev); - - return 0; -} - -static int bcm63xx_spi_unprepare_transfer(struct spi_master *master) -{ - struct bcm63xx_spi *bs = spi_master_get_devdata(master); - - pm_runtime_put(&bs->pdev->dev); - - return 0; -} - static int bcm63xx_spi_transfer_one(struct spi_master *master, struct spi_message *m) { @@ -353,20 +335,13 @@ static int bcm63xx_spi_probe(struct platform_device *pdev) { struct resource *r; struct device *dev = &pdev->dev; - struct bcm63xx_spi_pdata *pdata = pdev->dev.platform_data; + struct bcm63xx_spi_pdata *pdata = dev_get_platdata(&pdev->dev); int irq; struct spi_master *master; struct clk *clk; struct bcm63xx_spi *bs; int ret; - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - dev_err(dev, "no iomem\n"); - ret = -ENXIO; - goto out; - } - irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(dev, "no irq\n"); @@ -393,6 +368,7 @@ static int bcm63xx_spi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, master); bs->pdev = pdev; + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); bs->regs = devm_ioremap_resource(&pdev->dev, r); if (IS_ERR(bs->regs)) { ret = PTR_ERR(bs->regs); @@ -412,11 +388,10 @@ static int bcm63xx_spi_probe(struct platform_device *pdev) master->bus_num = pdata->bus_num; master->num_chipselect = pdata->num_chipselect; - master->prepare_transfer_hardware = bcm63xx_spi_prepare_transfer; - master->unprepare_transfer_hardware = bcm63xx_spi_unprepare_transfer; master->transfer_one_message = bcm63xx_spi_transfer_one; master->mode_bits = MODEBITS; master->bits_per_word_mask = SPI_BPW_MASK(8); + master->auto_runtime_pm = true; bs->msg_type_shift = pdata->msg_type_shift; bs->msg_ctl_width = pdata->msg_ctl_width; bs->tx_io = (u8 *)(bs->regs + bcm63xx_spireg(SPI_MSG_DATA)); @@ -480,8 +455,7 @@ static int bcm63xx_spi_remove(struct platform_device *pdev) #ifdef CONFIG_PM static int bcm63xx_spi_suspend(struct device *dev) { - struct spi_master *master = - platform_get_drvdata(to_platform_device(dev)); + struct spi_master *master = dev_get_drvdata(dev); struct bcm63xx_spi *bs = spi_master_get_devdata(master); spi_master_suspend(master); @@ -493,8 +467,7 @@ static int bcm63xx_spi_suspend(struct device *dev) static int bcm63xx_spi_resume(struct device *dev) { - struct spi_master *master = - platform_get_drvdata(to_platform_device(dev)); + struct spi_master *master = dev_get_drvdata(dev); struct bcm63xx_spi *bs = spi_master_get_devdata(master); clk_prepare_enable(bs->clk); diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c index 07ec597f9732..91921b5f5817 100644 --- a/drivers/spi/spi-bfin-sport.c +++ b/drivers/spi/spi-bfin-sport.c @@ -756,7 +756,7 @@ static int bfin_sport_spi_probe(struct platform_device *pdev) struct bfin_sport_spi_master_data *drv_data; int status; - platform_info = dev->platform_data; + platform_info = dev_get_platdata(dev); /* Allocate master with space for drv_data */ master = spi_alloc_master(dev, sizeof(*master) + 16); diff --git a/drivers/spi/spi-bfin-v3.c b/drivers/spi/spi-bfin-v3.c new file mode 100644 index 000000000000..f4bf81347d68 --- /dev/null +++ b/drivers/spi/spi-bfin-v3.c @@ -0,0 +1,965 @@ +/* + * Analog Devices SPI3 controller driver + * + * Copyright (c) 2013 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <linux/errno.h> +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/spi/spi.h> +#include <linux/types.h> + +#include <asm/bfin_spi3.h> +#include <asm/cacheflush.h> +#include <asm/dma.h> +#include <asm/portmux.h> + +enum bfin_spi_state { + START_STATE, + RUNNING_STATE, + DONE_STATE, + ERROR_STATE +}; + +struct bfin_spi_master; + +struct bfin_spi_transfer_ops { + void (*write) (struct bfin_spi_master *); + void (*read) (struct bfin_spi_master *); + void (*duplex) (struct bfin_spi_master *); +}; + +/* runtime info for spi master */ +struct bfin_spi_master { + /* SPI framework hookup */ + struct spi_master *master; + + /* Regs base of SPI controller */ + struct bfin_spi_regs __iomem *regs; + + /* Pin request list */ + u16 *pin_req; + + /* Message Transfer pump */ + struct tasklet_struct pump_transfers; + + /* Current message transfer state info */ + struct spi_message *cur_msg; + struct spi_transfer *cur_transfer; + struct bfin_spi_device *cur_chip; + unsigned transfer_len; + + /* transfer buffer */ + void *tx; + void *tx_end; + void *rx; + void *rx_end; + + /* dma info */ + unsigned int tx_dma; + unsigned int rx_dma; + dma_addr_t tx_dma_addr; + dma_addr_t rx_dma_addr; + unsigned long dummy_buffer; /* used in unidirectional transfer */ + unsigned long tx_dma_size; + unsigned long rx_dma_size; + int tx_num; + int rx_num; + + /* store register value for suspend/resume */ + u32 control; + u32 ssel; + + unsigned long sclk; + enum bfin_spi_state state; + + const struct bfin_spi_transfer_ops *ops; +}; + +struct bfin_spi_device { + u32 control; + u32 clock; + u32 ssel; + + u8 cs; + u16 cs_chg_udelay; /* Some devices require > 255usec delay */ + u32 cs_gpio; + u32 tx_dummy_val; /* tx value for rx only transfer */ + bool enable_dma; + const struct bfin_spi_transfer_ops *ops; +}; + +static void bfin_spi_enable(struct bfin_spi_master *drv_data) +{ + bfin_write_or(&drv_data->regs->control, SPI_CTL_EN); +} + +static void bfin_spi_disable(struct bfin_spi_master *drv_data) +{ + bfin_write_and(&drv_data->regs->control, ~SPI_CTL_EN); +} + +/* Caculate the SPI_CLOCK register value based on input HZ */ +static u32 hz_to_spi_clock(u32 sclk, u32 speed_hz) +{ + u32 spi_clock = sclk / speed_hz; + + if (spi_clock) + spi_clock--; + return spi_clock; +} + +static int bfin_spi_flush(struct bfin_spi_master *drv_data) +{ + unsigned long limit = loops_per_jiffy << 1; + + /* wait for stop and clear stat */ + while (!(bfin_read(&drv_data->regs->status) & SPI_STAT_SPIF) && --limit) + cpu_relax(); + + bfin_write(&drv_data->regs->status, 0xFFFFFFFF); + + return limit; +} + +/* Chip select operation functions for cs_change flag */ +static void bfin_spi_cs_active(struct bfin_spi_master *drv_data, struct bfin_spi_device *chip) +{ + if (likely(chip->cs < MAX_CTRL_CS)) + bfin_write_and(&drv_data->regs->ssel, ~chip->ssel); + else + gpio_set_value(chip->cs_gpio, 0); +} + +static void bfin_spi_cs_deactive(struct bfin_spi_master *drv_data, + struct bfin_spi_device *chip) +{ + if (likely(chip->cs < MAX_CTRL_CS)) + bfin_write_or(&drv_data->regs->ssel, chip->ssel); + else + gpio_set_value(chip->cs_gpio, 1); + + /* Move delay here for consistency */ + if (chip->cs_chg_udelay) + udelay(chip->cs_chg_udelay); +} + +/* enable or disable the pin muxed by GPIO and SPI CS to work as SPI CS */ +static inline void bfin_spi_cs_enable(struct bfin_spi_master *drv_data, + struct bfin_spi_device *chip) +{ + if (chip->cs < MAX_CTRL_CS) + bfin_write_or(&drv_data->regs->ssel, chip->ssel >> 8); +} + +static inline void bfin_spi_cs_disable(struct bfin_spi_master *drv_data, + struct bfin_spi_device *chip) +{ + if (chip->cs < MAX_CTRL_CS) + bfin_write_and(&drv_data->regs->ssel, ~(chip->ssel >> 8)); +} + +/* stop controller and re-config current chip*/ +static void bfin_spi_restore_state(struct bfin_spi_master *drv_data) +{ + struct bfin_spi_device *chip = drv_data->cur_chip; + + /* Clear status and disable clock */ + bfin_write(&drv_data->regs->status, 0xFFFFFFFF); + bfin_write(&drv_data->regs->rx_control, 0x0); + bfin_write(&drv_data->regs->tx_control, 0x0); + bfin_spi_disable(drv_data); + + SSYNC(); + + /* Load the registers */ + bfin_write(&drv_data->regs->control, chip->control); + bfin_write(&drv_data->regs->clock, chip->clock); + + bfin_spi_enable(drv_data); + drv_data->tx_num = drv_data->rx_num = 0; + /* we always choose tx transfer initiate */ + bfin_write(&drv_data->regs->rx_control, SPI_RXCTL_REN); + bfin_write(&drv_data->regs->tx_control, + SPI_TXCTL_TEN | SPI_TXCTL_TTI); + bfin_spi_cs_active(drv_data, chip); +} + +/* discard invalid rx data and empty rfifo */ +static inline void dummy_read(struct bfin_spi_master *drv_data) +{ + while (!(bfin_read(&drv_data->regs->status) & SPI_STAT_RFE)) + bfin_read(&drv_data->regs->rfifo); +} + +static void bfin_spi_u8_write(struct bfin_spi_master *drv_data) +{ + dummy_read(drv_data); + while (drv_data->tx < drv_data->tx_end) { + bfin_write(&drv_data->regs->tfifo, (*(u8 *)(drv_data->tx++))); + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + bfin_read(&drv_data->regs->rfifo); + } +} + +static void bfin_spi_u8_read(struct bfin_spi_master *drv_data) +{ + u32 tx_val = drv_data->cur_chip->tx_dummy_val; + + dummy_read(drv_data); + while (drv_data->rx < drv_data->rx_end) { + bfin_write(&drv_data->regs->tfifo, tx_val); + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + *(u8 *)(drv_data->rx++) = bfin_read(&drv_data->regs->rfifo); + } +} + +static void bfin_spi_u8_duplex(struct bfin_spi_master *drv_data) +{ + dummy_read(drv_data); + while (drv_data->rx < drv_data->rx_end) { + bfin_write(&drv_data->regs->tfifo, (*(u8 *)(drv_data->tx++))); + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + *(u8 *)(drv_data->rx++) = bfin_read(&drv_data->regs->rfifo); + } +} + +static const struct bfin_spi_transfer_ops bfin_bfin_spi_transfer_ops_u8 = { + .write = bfin_spi_u8_write, + .read = bfin_spi_u8_read, + .duplex = bfin_spi_u8_duplex, +}; + +static void bfin_spi_u16_write(struct bfin_spi_master *drv_data) +{ + dummy_read(drv_data); + while (drv_data->tx < drv_data->tx_end) { + bfin_write(&drv_data->regs->tfifo, (*(u16 *)drv_data->tx)); + drv_data->tx += 2; + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + bfin_read(&drv_data->regs->rfifo); + } +} + +static void bfin_spi_u16_read(struct bfin_spi_master *drv_data) +{ + u32 tx_val = drv_data->cur_chip->tx_dummy_val; + + dummy_read(drv_data); + while (drv_data->rx < drv_data->rx_end) { + bfin_write(&drv_data->regs->tfifo, tx_val); + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + *(u16 *)drv_data->rx = bfin_read(&drv_data->regs->rfifo); + drv_data->rx += 2; + } +} + +static void bfin_spi_u16_duplex(struct bfin_spi_master *drv_data) +{ + dummy_read(drv_data); + while (drv_data->rx < drv_data->rx_end) { + bfin_write(&drv_data->regs->tfifo, (*(u16 *)drv_data->tx)); + drv_data->tx += 2; + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + *(u16 *)drv_data->rx = bfin_read(&drv_data->regs->rfifo); + drv_data->rx += 2; + } +} + +static const struct bfin_spi_transfer_ops bfin_bfin_spi_transfer_ops_u16 = { + .write = bfin_spi_u16_write, + .read = bfin_spi_u16_read, + .duplex = bfin_spi_u16_duplex, +}; + +static void bfin_spi_u32_write(struct bfin_spi_master *drv_data) +{ + dummy_read(drv_data); + while (drv_data->tx < drv_data->tx_end) { + bfin_write(&drv_data->regs->tfifo, (*(u32 *)drv_data->tx)); + drv_data->tx += 4; + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + bfin_read(&drv_data->regs->rfifo); + } +} + +static void bfin_spi_u32_read(struct bfin_spi_master *drv_data) +{ + u32 tx_val = drv_data->cur_chip->tx_dummy_val; + + dummy_read(drv_data); + while (drv_data->rx < drv_data->rx_end) { + bfin_write(&drv_data->regs->tfifo, tx_val); + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + *(u32 *)drv_data->rx = bfin_read(&drv_data->regs->rfifo); + drv_data->rx += 4; + } +} + +static void bfin_spi_u32_duplex(struct bfin_spi_master *drv_data) +{ + dummy_read(drv_data); + while (drv_data->rx < drv_data->rx_end) { + bfin_write(&drv_data->regs->tfifo, (*(u32 *)drv_data->tx)); + drv_data->tx += 4; + while (bfin_read(&drv_data->regs->status) & SPI_STAT_RFE) + cpu_relax(); + *(u32 *)drv_data->rx = bfin_read(&drv_data->regs->rfifo); + drv_data->rx += 4; + } +} + +static const struct bfin_spi_transfer_ops bfin_bfin_spi_transfer_ops_u32 = { + .write = bfin_spi_u32_write, + .read = bfin_spi_u32_read, + .duplex = bfin_spi_u32_duplex, +}; + + +/* test if there is more transfer to be done */ +static void bfin_spi_next_transfer(struct bfin_spi_master *drv) +{ + struct spi_message *msg = drv->cur_msg; + struct spi_transfer *t = drv->cur_transfer; + + /* Move to next transfer */ + if (t->transfer_list.next != &msg->transfers) { + drv->cur_transfer = list_entry(t->transfer_list.next, + struct spi_transfer, transfer_list); + drv->state = RUNNING_STATE; + } else { + drv->state = DONE_STATE; + drv->cur_transfer = NULL; + } +} + +static void bfin_spi_giveback(struct bfin_spi_master *drv_data) +{ + struct bfin_spi_device *chip = drv_data->cur_chip; + + bfin_spi_cs_deactive(drv_data, chip); + spi_finalize_current_message(drv_data->master); +} + +static int bfin_spi_setup_transfer(struct bfin_spi_master *drv) +{ + struct spi_transfer *t = drv->cur_transfer; + u32 cr, cr_width; + + if (t->tx_buf) { + drv->tx = (void *)t->tx_buf; + drv->tx_end = drv->tx + t->len; + } else { + drv->tx = NULL; + } + + if (t->rx_buf) { + drv->rx = t->rx_buf; + drv->rx_end = drv->rx + t->len; + } else { + drv->rx = NULL; + } + + drv->transfer_len = t->len; + + /* bits per word setup */ + switch (t->bits_per_word) { + case 8: + cr_width = SPI_CTL_SIZE08; + drv->ops = &bfin_bfin_spi_transfer_ops_u8; + break; + case 16: + cr_width = SPI_CTL_SIZE16; + drv->ops = &bfin_bfin_spi_transfer_ops_u16; + break; + case 32: + cr_width = SPI_CTL_SIZE32; + drv->ops = &bfin_bfin_spi_transfer_ops_u32; + break; + default: + return -EINVAL; + } + cr = bfin_read(&drv->regs->control) & ~SPI_CTL_SIZE; + cr |= cr_width; + bfin_write(&drv->regs->control, cr); + + /* speed setup */ + bfin_write(&drv->regs->clock, + hz_to_spi_clock(drv->sclk, t->speed_hz)); + return 0; +} + +static int bfin_spi_dma_xfer(struct bfin_spi_master *drv_data) +{ + struct spi_transfer *t = drv_data->cur_transfer; + struct spi_message *msg = drv_data->cur_msg; + struct bfin_spi_device *chip = drv_data->cur_chip; + u32 dma_config; + unsigned long word_count, word_size; + void *tx_buf, *rx_buf; + + switch (t->bits_per_word) { + case 8: + dma_config = WDSIZE_8 | PSIZE_8; + word_count = drv_data->transfer_len; + word_size = 1; + break; + case 16: + dma_config = WDSIZE_16 | PSIZE_16; + word_count = drv_data->transfer_len / 2; + word_size = 2; + break; + default: + dma_config = WDSIZE_32 | PSIZE_32; + word_count = drv_data->transfer_len / 4; + word_size = 4; + break; + } + + if (!drv_data->rx) { + tx_buf = drv_data->tx; + rx_buf = &drv_data->dummy_buffer; + drv_data->tx_dma_size = drv_data->transfer_len; + drv_data->rx_dma_size = sizeof(drv_data->dummy_buffer); + set_dma_x_modify(drv_data->tx_dma, word_size); + set_dma_x_modify(drv_data->rx_dma, 0); + } else if (!drv_data->tx) { + drv_data->dummy_buffer = chip->tx_dummy_val; + tx_buf = &drv_data->dummy_buffer; + rx_buf = drv_data->rx; + drv_data->tx_dma_size = sizeof(drv_data->dummy_buffer); + drv_data->rx_dma_size = drv_data->transfer_len; + set_dma_x_modify(drv_data->tx_dma, 0); + set_dma_x_modify(drv_data->rx_dma, word_size); + } else { + tx_buf = drv_data->tx; + rx_buf = drv_data->rx; + drv_data->tx_dma_size = drv_data->rx_dma_size + = drv_data->transfer_len; + set_dma_x_modify(drv_data->tx_dma, word_size); + set_dma_x_modify(drv_data->rx_dma, word_size); + } + + drv_data->tx_dma_addr = dma_map_single(&msg->spi->dev, + (void *)tx_buf, + drv_data->tx_dma_size, + DMA_TO_DEVICE); + if (dma_mapping_error(&msg->spi->dev, + drv_data->tx_dma_addr)) + return -ENOMEM; + + drv_data->rx_dma_addr = dma_map_single(&msg->spi->dev, + (void *)rx_buf, + drv_data->rx_dma_size, + DMA_FROM_DEVICE); + if (dma_mapping_error(&msg->spi->dev, + drv_data->rx_dma_addr)) { + dma_unmap_single(&msg->spi->dev, + drv_data->tx_dma_addr, + drv_data->tx_dma_size, + DMA_TO_DEVICE); + return -ENOMEM; + } + + dummy_read(drv_data); + set_dma_x_count(drv_data->tx_dma, word_count); + set_dma_x_count(drv_data->rx_dma, word_count); + set_dma_start_addr(drv_data->tx_dma, drv_data->tx_dma_addr); + set_dma_start_addr(drv_data->rx_dma, drv_data->rx_dma_addr); + dma_config |= DMAFLOW_STOP | RESTART | DI_EN; + set_dma_config(drv_data->tx_dma, dma_config); + set_dma_config(drv_data->rx_dma, dma_config | WNR); + enable_dma(drv_data->tx_dma); + enable_dma(drv_data->rx_dma); + SSYNC(); + + bfin_write(&drv_data->regs->rx_control, SPI_RXCTL_REN | SPI_RXCTL_RDR_NE); + SSYNC(); + bfin_write(&drv_data->regs->tx_control, + SPI_TXCTL_TEN | SPI_TXCTL_TTI | SPI_TXCTL_TDR_NF); + + return 0; +} + +static int bfin_spi_pio_xfer(struct bfin_spi_master *drv_data) +{ + struct spi_message *msg = drv_data->cur_msg; + + if (!drv_data->rx) { + /* write only half duplex */ + drv_data->ops->write(drv_data); + if (drv_data->tx != drv_data->tx_end) + return -EIO; + } else if (!drv_data->tx) { + /* read only half duplex */ + drv_data->ops->read(drv_data); + if (drv_data->rx != drv_data->rx_end) + return -EIO; + } else { + /* full duplex mode */ + drv_data->ops->duplex(drv_data); + if (drv_data->tx != drv_data->tx_end) + return -EIO; + } + + if (!bfin_spi_flush(drv_data)) + return -EIO; + msg->actual_length += drv_data->transfer_len; + tasklet_schedule(&drv_data->pump_transfers); + return 0; +} + +static void bfin_spi_pump_transfers(unsigned long data) +{ + struct bfin_spi_master *drv_data = (struct bfin_spi_master *)data; + struct spi_message *msg = NULL; + struct spi_transfer *t = NULL; + struct bfin_spi_device *chip = NULL; + int ret; + + /* Get current state information */ + msg = drv_data->cur_msg; + t = drv_data->cur_transfer; + chip = drv_data->cur_chip; + + /* Handle for abort */ + if (drv_data->state == ERROR_STATE) { + msg->status = -EIO; + bfin_spi_giveback(drv_data); + return; + } + + if (drv_data->state == RUNNING_STATE) { + if (t->delay_usecs) + udelay(t->delay_usecs); + if (t->cs_change) + bfin_spi_cs_deactive(drv_data, chip); + bfin_spi_next_transfer(drv_data); + t = drv_data->cur_transfer; + } + /* Handle end of message */ + if (drv_data->state == DONE_STATE) { + msg->status = 0; + bfin_spi_giveback(drv_data); + return; + } + + if ((t->len == 0) || (t->tx_buf == NULL && t->rx_buf == NULL)) { + /* Schedule next transfer tasklet */ + tasklet_schedule(&drv_data->pump_transfers); + return; + } + + ret = bfin_spi_setup_transfer(drv_data); + if (ret) { + msg->status = ret; + bfin_spi_giveback(drv_data); + } + + bfin_write(&drv_data->regs->status, 0xFFFFFFFF); + bfin_spi_cs_active(drv_data, chip); + drv_data->state = RUNNING_STATE; + + if (chip->enable_dma) + ret = bfin_spi_dma_xfer(drv_data); + else + ret = bfin_spi_pio_xfer(drv_data); + if (ret) { + msg->status = ret; + bfin_spi_giveback(drv_data); + } +} + +static int bfin_spi_transfer_one_message(struct spi_master *master, + struct spi_message *m) +{ + struct bfin_spi_master *drv_data = spi_master_get_devdata(master); + + drv_data->cur_msg = m; + drv_data->cur_chip = spi_get_ctldata(drv_data->cur_msg->spi); + bfin_spi_restore_state(drv_data); + + drv_data->state = START_STATE; + drv_data->cur_transfer = list_entry(drv_data->cur_msg->transfers.next, + struct spi_transfer, transfer_list); + + tasklet_schedule(&drv_data->pump_transfers); + return 0; +} + +#define MAX_SPI_SSEL 7 + +static const u16 ssel[][MAX_SPI_SSEL] = { + {P_SPI0_SSEL1, P_SPI0_SSEL2, P_SPI0_SSEL3, + P_SPI0_SSEL4, P_SPI0_SSEL5, + P_SPI0_SSEL6, P_SPI0_SSEL7}, + + {P_SPI1_SSEL1, P_SPI1_SSEL2, P_SPI1_SSEL3, + P_SPI1_SSEL4, P_SPI1_SSEL5, + P_SPI1_SSEL6, P_SPI1_SSEL7}, + + {P_SPI2_SSEL1, P_SPI2_SSEL2, P_SPI2_SSEL3, + P_SPI2_SSEL4, P_SPI2_SSEL5, + P_SPI2_SSEL6, P_SPI2_SSEL7}, +}; + +static int bfin_spi_setup(struct spi_device *spi) +{ + struct bfin_spi_master *drv_data = spi_master_get_devdata(spi->master); + struct bfin_spi_device *chip = spi_get_ctldata(spi); + u32 bfin_ctl_reg = SPI_CTL_ODM | SPI_CTL_PSSE; + int ret = -EINVAL; + + if (!chip) { + struct bfin_spi3_chip *chip_info = spi->controller_data; + + chip = kzalloc(sizeof(*chip), GFP_KERNEL); + if (!chip) { + dev_err(&spi->dev, "can not allocate chip data\n"); + return -ENOMEM; + } + if (chip_info) { + if (chip_info->control & ~bfin_ctl_reg) { + dev_err(&spi->dev, + "do not set bits that the SPI framework manages\n"); + goto error; + } + chip->control = chip_info->control; + chip->cs_chg_udelay = chip_info->cs_chg_udelay; + chip->tx_dummy_val = chip_info->tx_dummy_val; + chip->enable_dma = chip_info->enable_dma; + } + chip->cs = spi->chip_select; + if (chip->cs < MAX_CTRL_CS) { + chip->ssel = (1 << chip->cs) << 8; + ret = peripheral_request(ssel[spi->master->bus_num] + [chip->cs-1], dev_name(&spi->dev)); + if (ret) { + dev_err(&spi->dev, "peripheral_request() error\n"); + goto error; + } + } else { + chip->cs_gpio = chip->cs - MAX_CTRL_CS; + ret = gpio_request_one(chip->cs_gpio, GPIOF_OUT_INIT_HIGH, + dev_name(&spi->dev)); + if (ret) { + dev_err(&spi->dev, "gpio_request_one() error\n"); + goto error; + } + } + spi_set_ctldata(spi, chip); + } + + /* force a default base state */ + chip->control &= bfin_ctl_reg; + + if (spi->mode & SPI_CPOL) + chip->control |= SPI_CTL_CPOL; + if (spi->mode & SPI_CPHA) + chip->control |= SPI_CTL_CPHA; + if (spi->mode & SPI_LSB_FIRST) + chip->control |= SPI_CTL_LSBF; + chip->control |= SPI_CTL_MSTR; + /* we choose software to controll cs */ + chip->control &= ~SPI_CTL_ASSEL; + + chip->clock = hz_to_spi_clock(drv_data->sclk, spi->max_speed_hz); + + bfin_spi_cs_enable(drv_data, chip); + bfin_spi_cs_deactive(drv_data, chip); + + return 0; +error: + if (chip) { + kfree(chip); + spi_set_ctldata(spi, NULL); + } + + return ret; +} + +static void bfin_spi_cleanup(struct spi_device *spi) +{ + struct bfin_spi_device *chip = spi_get_ctldata(spi); + struct bfin_spi_master *drv_data = spi_master_get_devdata(spi->master); + + if (!chip) + return; + + if (chip->cs < MAX_CTRL_CS) { + peripheral_free(ssel[spi->master->bus_num] + [chip->cs-1]); + bfin_spi_cs_disable(drv_data, chip); + } else { + gpio_free(chip->cs_gpio); + } + + kfree(chip); + spi_set_ctldata(spi, NULL); +} + +static irqreturn_t bfin_spi_tx_dma_isr(int irq, void *dev_id) +{ + struct bfin_spi_master *drv_data = dev_id; + u32 dma_stat = get_dma_curr_irqstat(drv_data->tx_dma); + + clear_dma_irqstat(drv_data->tx_dma); + if (dma_stat & DMA_DONE) { + drv_data->tx_num++; + } else { + dev_err(&drv_data->master->dev, + "spi tx dma error: %d\n", dma_stat); + if (drv_data->tx) + drv_data->state = ERROR_STATE; + } + bfin_write_and(&drv_data->regs->tx_control, ~SPI_TXCTL_TDR_NF); + return IRQ_HANDLED; +} + +static irqreturn_t bfin_spi_rx_dma_isr(int irq, void *dev_id) +{ + struct bfin_spi_master *drv_data = dev_id; + struct spi_message *msg = drv_data->cur_msg; + u32 dma_stat = get_dma_curr_irqstat(drv_data->rx_dma); + + clear_dma_irqstat(drv_data->rx_dma); + if (dma_stat & DMA_DONE) { + drv_data->rx_num++; + /* we may fail on tx dma */ + if (drv_data->state != ERROR_STATE) + msg->actual_length += drv_data->transfer_len; + } else { + drv_data->state = ERROR_STATE; + dev_err(&drv_data->master->dev, + "spi rx dma error: %d\n", dma_stat); + } + bfin_write(&drv_data->regs->tx_control, 0); + bfin_write(&drv_data->regs->rx_control, 0); + if (drv_data->rx_num != drv_data->tx_num) + dev_dbg(&drv_data->master->dev, + "dma interrupt missing: tx=%d,rx=%d\n", + drv_data->tx_num, drv_data->rx_num); + tasklet_schedule(&drv_data->pump_transfers); + return IRQ_HANDLED; +} + +static int bfin_spi_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct bfin_spi3_master *info = dev_get_platdata(dev); + struct spi_master *master; + struct bfin_spi_master *drv_data; + struct resource *mem, *res; + unsigned int tx_dma, rx_dma; + unsigned long sclk; + int ret; + + if (!info) { + dev_err(dev, "platform data missing!\n"); + return -ENODEV; + } + + sclk = get_sclk1(); + if (!sclk) { + dev_err(dev, "can not get sclk1\n"); + return -ENXIO; + } + + res = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (!res) { + dev_err(dev, "can not get tx dma resource\n"); + return -ENXIO; + } + tx_dma = res->start; + + res = platform_get_resource(pdev, IORESOURCE_DMA, 1); + if (!res) { + dev_err(dev, "can not get rx dma resource\n"); + return -ENXIO; + } + rx_dma = res->start; + + /* allocate master with space for drv_data */ + master = spi_alloc_master(dev, sizeof(*drv_data)); + if (!master) { + dev_err(dev, "can not alloc spi_master\n"); + return -ENOMEM; + } + platform_set_drvdata(pdev, master); + + /* the mode bits supported by this driver */ + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST; + + master->bus_num = pdev->id; + master->num_chipselect = info->num_chipselect; + master->cleanup = bfin_spi_cleanup; + master->setup = bfin_spi_setup; + master->transfer_one_message = bfin_spi_transfer_one_message; + master->bits_per_word_mask = BIT(32 - 1) | BIT(16 - 1) | BIT(8 - 1); + + drv_data = spi_master_get_devdata(master); + drv_data->master = master; + drv_data->tx_dma = tx_dma; + drv_data->rx_dma = rx_dma; + drv_data->pin_req = info->pin_req; + drv_data->sclk = sclk; + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + drv_data->regs = devm_ioremap_resource(dev, mem); + if (IS_ERR(drv_data->regs)) { + ret = PTR_ERR(drv_data->regs); + goto err_put_master; + } + + /* request tx and rx dma */ + ret = request_dma(tx_dma, "SPI_TX_DMA"); + if (ret) { + dev_err(dev, "can not request SPI TX DMA channel\n"); + goto err_put_master; + } + set_dma_callback(tx_dma, bfin_spi_tx_dma_isr, drv_data); + + ret = request_dma(rx_dma, "SPI_RX_DMA"); + if (ret) { + dev_err(dev, "can not request SPI RX DMA channel\n"); + goto err_free_tx_dma; + } + set_dma_callback(drv_data->rx_dma, bfin_spi_rx_dma_isr, drv_data); + + /* request CLK, MOSI and MISO */ + ret = peripheral_request_list(drv_data->pin_req, "bfin-spi3"); + if (ret < 0) { + dev_err(dev, "can not request spi pins\n"); + goto err_free_rx_dma; + } + + bfin_write(&drv_data->regs->control, SPI_CTL_MSTR | SPI_CTL_CPHA); + bfin_write(&drv_data->regs->ssel, 0x0000FE00); + bfin_write(&drv_data->regs->delay, 0x0); + + tasklet_init(&drv_data->pump_transfers, + bfin_spi_pump_transfers, (unsigned long)drv_data); + /* register with the SPI framework */ + ret = spi_register_master(master); + if (ret) { + dev_err(dev, "can not register spi master\n"); + goto err_free_peripheral; + } + + return ret; + +err_free_peripheral: + peripheral_free_list(drv_data->pin_req); +err_free_rx_dma: + free_dma(rx_dma); +err_free_tx_dma: + free_dma(tx_dma); +err_put_master: + spi_master_put(master); + + return ret; +} + +static int bfin_spi_remove(struct platform_device *pdev) +{ + struct spi_master *master = platform_get_drvdata(pdev); + struct bfin_spi_master *drv_data = spi_master_get_devdata(master); + + bfin_spi_disable(drv_data); + + peripheral_free_list(drv_data->pin_req); + free_dma(drv_data->rx_dma); + free_dma(drv_data->tx_dma); + + spi_unregister_master(drv_data->master); + return 0; +} + +#ifdef CONFIG_PM +static int bfin_spi_suspend(struct device *dev) +{ + struct spi_master *master = dev_get_drvdata(dev); + struct bfin_spi_master *drv_data = spi_master_get_devdata(master); + + spi_master_suspend(master); + + drv_data->control = bfin_read(&drv_data->regs->control); + drv_data->ssel = bfin_read(&drv_data->regs->ssel); + + bfin_write(&drv_data->regs->control, SPI_CTL_MSTR | SPI_CTL_CPHA); + bfin_write(&drv_data->regs->ssel, 0x0000FE00); + dma_disable_irq(drv_data->rx_dma); + dma_disable_irq(drv_data->tx_dma); + + return 0; +} + +static int bfin_spi_resume(struct device *dev) +{ + struct spi_master *master = dev_get_drvdata(dev); + struct bfin_spi_master *drv_data = spi_master_get_devdata(master); + int ret = 0; + + /* bootrom may modify spi and dma status when resume in spi boot mode */ + disable_dma(drv_data->rx_dma); + + dma_enable_irq(drv_data->rx_dma); + dma_enable_irq(drv_data->tx_dma); + bfin_write(&drv_data->regs->control, drv_data->control); + bfin_write(&drv_data->regs->ssel, drv_data->ssel); + + ret = spi_master_resume(master); + if (ret) { + free_dma(drv_data->rx_dma); + free_dma(drv_data->tx_dma); + } + + return ret; +} +#endif +static const struct dev_pm_ops bfin_spi_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(bfin_spi_suspend, bfin_spi_resume) +}; + +MODULE_ALIAS("platform:bfin-spi3"); +static struct platform_driver bfin_spi_driver = { + .driver = { + .name = "bfin-spi3", + .owner = THIS_MODULE, + .pm = &bfin_spi_pm_ops, + }, + .remove = bfin_spi_remove, +}; + +module_platform_driver_probe(bfin_spi_driver, bfin_spi_probe); + +MODULE_DESCRIPTION("Analog Devices SPI3 controller driver"); +MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c index 59a73424419c..45bdf73d6868 100644 --- a/drivers/spi/spi-bfin5xx.c +++ b/drivers/spi/spi-bfin5xx.c @@ -1271,7 +1271,7 @@ static int bfin_spi_probe(struct platform_device *pdev) struct resource *res; int status = 0; - platform_info = dev->platform_data; + platform_info = dev_get_platdata(dev); /* Allocate master with space for drv_data */ master = spi_alloc_master(dev, sizeof(*drv_data)); diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c index a63d7da3bfe2..e3946e44e076 100644 --- a/drivers/spi/spi-bitbang.c +++ b/drivers/spi/spi-bitbang.c @@ -255,150 +255,140 @@ static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t) * Drivers can provide word-at-a-time i/o primitives, or provide * transfer-at-a-time ones to leverage dma or fifo hardware. */ -static void bitbang_work(struct work_struct *work) + +static int spi_bitbang_prepare_hardware(struct spi_master *spi) { - struct spi_bitbang *bitbang = - container_of(work, struct spi_bitbang, work); + struct spi_bitbang *bitbang; unsigned long flags; - struct spi_message *m, *_m; + + bitbang = spi_master_get_devdata(spi); spin_lock_irqsave(&bitbang->lock, flags); bitbang->busy = 1; - list_for_each_entry_safe(m, _m, &bitbang->queue, queue) { - struct spi_device *spi; - unsigned nsecs; - struct spi_transfer *t = NULL; - unsigned tmp; - unsigned cs_change; - int status; - int do_setup = -1; - - list_del(&m->queue); - spin_unlock_irqrestore(&bitbang->lock, flags); - - /* FIXME this is made-up ... the correct value is known to - * word-at-a-time bitbang code, and presumably chipselect() - * should enforce these requirements too? - */ - nsecs = 100; + spin_unlock_irqrestore(&bitbang->lock, flags); - spi = m->spi; - tmp = 0; - cs_change = 1; - status = 0; + return 0; +} - list_for_each_entry (t, &m->transfers, transfer_list) { - - /* override speed or wordsize? */ - if (t->speed_hz || t->bits_per_word) - do_setup = 1; - - /* init (-1) or override (1) transfer params */ - if (do_setup != 0) { - status = bitbang->setup_transfer(spi, t); - if (status < 0) - break; - if (do_setup == -1) - do_setup = 0; - } - - /* set up default clock polarity, and activate chip; - * this implicitly updates clock and spi modes as - * previously recorded for this device via setup(). - * (and also deselects any other chip that might be - * selected ...) - */ - if (cs_change) { - bitbang->chipselect(spi, BITBANG_CS_ACTIVE); - ndelay(nsecs); - } - cs_change = t->cs_change; - if (!t->tx_buf && !t->rx_buf && t->len) { - status = -EINVAL; - break; - } +static int spi_bitbang_transfer_one(struct spi_master *master, + struct spi_message *m) +{ + struct spi_bitbang *bitbang; + unsigned nsecs; + struct spi_transfer *t = NULL; + unsigned cs_change; + int status; + int do_setup = -1; + struct spi_device *spi = m->spi; + + bitbang = spi_master_get_devdata(master); + + /* FIXME this is made-up ... the correct value is known to + * word-at-a-time bitbang code, and presumably chipselect() + * should enforce these requirements too? + */ + nsecs = 100; - /* transfer data. the lower level code handles any - * new dma mappings it needs. our caller always gave - * us dma-safe buffers. - */ - if (t->len) { - /* REVISIT dma API still needs a designated - * DMA_ADDR_INVALID; ~0 might be better. - */ - if (!m->is_dma_mapped) - t->rx_dma = t->tx_dma = 0; - status = bitbang->txrx_bufs(spi, t); - } - if (status > 0) - m->actual_length += status; - if (status != t->len) { - /* always report some kind of error */ - if (status >= 0) - status = -EREMOTEIO; + cs_change = 1; + status = 0; + + list_for_each_entry (t, &m->transfers, transfer_list) { + + /* override speed or wordsize? */ + if (t->speed_hz || t->bits_per_word) + do_setup = 1; + + /* init (-1) or override (1) transfer params */ + if (do_setup != 0) { + status = bitbang->setup_transfer(spi, t); + if (status < 0) break; - } - status = 0; - - /* protocol tweaks before next transfer */ - if (t->delay_usecs) - udelay(t->delay_usecs); - - if (cs_change && !list_is_last(&t->transfer_list, &m->transfers)) { - /* sometimes a short mid-message deselect of the chip - * may be needed to terminate a mode or command - */ - ndelay(nsecs); - bitbang->chipselect(spi, BITBANG_CS_INACTIVE); - ndelay(nsecs); - } + if (do_setup == -1) + do_setup = 0; } - m->status = status; - m->complete(m->context); + /* set up default clock polarity, and activate chip; + * this implicitly updates clock and spi modes as + * previously recorded for this device via setup(). + * (and also deselects any other chip that might be + * selected ...) + */ + if (cs_change) { + bitbang->chipselect(spi, BITBANG_CS_ACTIVE); + ndelay(nsecs); + } + cs_change = t->cs_change; + if (!t->tx_buf && !t->rx_buf && t->len) { + status = -EINVAL; + break; + } - /* normally deactivate chipselect ... unless no error and - * cs_change has hinted that the next message will probably - * be for this chip too. + /* transfer data. the lower level code handles any + * new dma mappings it needs. our caller always gave + * us dma-safe buffers. */ - if (!(status == 0 && cs_change)) { + if (t->len) { + /* REVISIT dma API still needs a designated + * DMA_ADDR_INVALID; ~0 might be better. + */ + if (!m->is_dma_mapped) + t->rx_dma = t->tx_dma = 0; + status = bitbang->txrx_bufs(spi, t); + } + if (status > 0) + m->actual_length += status; + if (status != t->len) { + /* always report some kind of error */ + if (status >= 0) + status = -EREMOTEIO; + break; + } + status = 0; + + /* protocol tweaks before next transfer */ + if (t->delay_usecs) + udelay(t->delay_usecs); + + if (cs_change && !list_is_last(&t->transfer_list, &m->transfers)) { + /* sometimes a short mid-message deselect of the chip + * may be needed to terminate a mode or command + */ ndelay(nsecs); bitbang->chipselect(spi, BITBANG_CS_INACTIVE); ndelay(nsecs); } + } + + m->status = status; - spin_lock_irqsave(&bitbang->lock, flags); + /* normally deactivate chipselect ... unless no error and + * cs_change has hinted that the next message will probably + * be for this chip too. + */ + if (!(status == 0 && cs_change)) { + ndelay(nsecs); + bitbang->chipselect(spi, BITBANG_CS_INACTIVE); + ndelay(nsecs); } - bitbang->busy = 0; - spin_unlock_irqrestore(&bitbang->lock, flags); + + spi_finalize_current_message(master); + + return status; } -/** - * spi_bitbang_transfer - default submit to transfer queue - */ -int spi_bitbang_transfer(struct spi_device *spi, struct spi_message *m) +static int spi_bitbang_unprepare_hardware(struct spi_master *spi) { - struct spi_bitbang *bitbang; + struct spi_bitbang *bitbang; unsigned long flags; - int status = 0; - m->actual_length = 0; - m->status = -EINPROGRESS; - - bitbang = spi_master_get_devdata(spi->master); + bitbang = spi_master_get_devdata(spi); spin_lock_irqsave(&bitbang->lock, flags); - if (!spi->max_speed_hz) - status = -ENETDOWN; - else { - list_add_tail(&m->queue, &bitbang->queue); - queue_work(bitbang->workqueue, &bitbang->work); - } + bitbang->busy = 0; spin_unlock_irqrestore(&bitbang->lock, flags); - return status; + return 0; } -EXPORT_SYMBOL_GPL(spi_bitbang_transfer); /*----------------------------------------------------------------------*/ @@ -428,20 +418,22 @@ EXPORT_SYMBOL_GPL(spi_bitbang_transfer); int spi_bitbang_start(struct spi_bitbang *bitbang) { struct spi_master *master = bitbang->master; - int status; if (!master || !bitbang->chipselect) return -EINVAL; - INIT_WORK(&bitbang->work, bitbang_work); spin_lock_init(&bitbang->lock); - INIT_LIST_HEAD(&bitbang->queue); if (!master->mode_bits) master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags; - if (!master->transfer) - master->transfer = spi_bitbang_transfer; + if (master->transfer || master->transfer_one_message) + return -EINVAL; + + master->prepare_transfer_hardware = spi_bitbang_prepare_hardware; + master->unprepare_transfer_hardware = spi_bitbang_unprepare_hardware; + master->transfer_one_message = spi_bitbang_transfer_one; + if (!bitbang->txrx_bufs) { bitbang->use_dma = 0; bitbang->txrx_bufs = spi_bitbang_bufs; @@ -452,34 +444,12 @@ int spi_bitbang_start(struct spi_bitbang *bitbang) master->setup = spi_bitbang_setup; master->cleanup = spi_bitbang_cleanup; } - } else if (!master->setup) - return -EINVAL; - if (master->transfer == spi_bitbang_transfer && - !bitbang->setup_transfer) - return -EINVAL; - - /* this task is the only thing to touch the SPI bits */ - bitbang->busy = 0; - bitbang->workqueue = create_singlethread_workqueue( - dev_name(master->dev.parent)); - if (bitbang->workqueue == NULL) { - status = -EBUSY; - goto err1; } /* driver may get busy before register() returns, especially * if someone registered boardinfo for devices */ - status = spi_register_master(master); - if (status < 0) - goto err2; - - return status; - -err2: - destroy_workqueue(bitbang->workqueue); -err1: - return status; + return spi_register_master(master); } EXPORT_SYMBOL_GPL(spi_bitbang_start); @@ -490,10 +460,6 @@ int spi_bitbang_stop(struct spi_bitbang *bitbang) { spi_unregister_master(bitbang->master); - WARN_ON(!list_empty(&bitbang->queue)); - - destroy_workqueue(bitbang->workqueue); - return 0; } EXPORT_SYMBOL_GPL(spi_bitbang_stop); diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c index 17965fe225cc..5655acf55bfe 100644 --- a/drivers/spi/spi-clps711x.c +++ b/drivers/spi/spi-clps711x.c @@ -239,11 +239,8 @@ static int spi_clps711x_probe(struct platform_device *pdev) } dev_err(&pdev->dev, "Failed to register master\n"); - devm_free_irq(&pdev->dev, IRQ_SSEOTI, hw); clk_out: - devm_clk_put(&pdev->dev, hw->spi_clk); - err_out: while (--i >= 0) if (gpio_is_valid(hw->chipselect[i])) @@ -261,13 +258,10 @@ static int spi_clps711x_remove(struct platform_device *pdev) struct spi_master *master = platform_get_drvdata(pdev); struct spi_clps711x_data *hw = spi_master_get_devdata(master); - devm_free_irq(&pdev->dev, IRQ_SSEOTI, hw); - for (i = 0; i < master->num_chipselect; i++) if (gpio_is_valid(hw->chipselect[i])) gpio_free(hw->chipselect[i]); - devm_clk_put(&pdev->dev, hw->spi_clk); spi_unregister_master(master); kfree(master); diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c index 0631b9d4a5de..cc5b75d10c38 100644 --- a/drivers/spi/spi-coldfire-qspi.c +++ b/drivers/spi/spi-coldfire-qspi.c @@ -354,24 +354,6 @@ static int mcfqspi_transfer_one_message(struct spi_master *master, } -static int mcfqspi_prepare_transfer_hw(struct spi_master *master) -{ - struct mcfqspi *mcfqspi = spi_master_get_devdata(master); - - pm_runtime_get_sync(mcfqspi->dev); - - return 0; -} - -static int mcfqspi_unprepare_transfer_hw(struct spi_master *master) -{ - struct mcfqspi *mcfqspi = spi_master_get_devdata(master); - - pm_runtime_put_sync(mcfqspi->dev); - - return 0; -} - static int mcfqspi_setup(struct spi_device *spi) { if (spi->chip_select >= spi->master->num_chipselect) { @@ -400,7 +382,7 @@ static int mcfqspi_probe(struct platform_device *pdev) struct mcfqspi_platform_data *pdata; int status; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (!pdata) { dev_dbg(&pdev->dev, "platform data is missing\n"); return -ENOENT; @@ -473,8 +455,7 @@ static int mcfqspi_probe(struct platform_device *pdev) master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16); master->setup = mcfqspi_setup; master->transfer_one_message = mcfqspi_transfer_one_message; - master->prepare_transfer_hardware = mcfqspi_prepare_transfer_hw; - master->unprepare_transfer_hardware = mcfqspi_unprepare_transfer_hw; + master->auto_runtime_pm = true; platform_set_drvdata(pdev, master); @@ -558,7 +539,7 @@ static int mcfqspi_resume(struct device *dev) #ifdef CONFIG_PM_RUNTIME static int mcfqspi_runtime_suspend(struct device *dev) { - struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev)); + struct mcfqspi *mcfqspi = dev_get_drvdata(dev); clk_disable(mcfqspi->clk); @@ -567,7 +548,7 @@ static int mcfqspi_runtime_suspend(struct device *dev) static int mcfqspi_runtime_resume(struct device *dev) { - struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev)); + struct mcfqspi *mcfqspi = dev_get_drvdata(dev); clk_enable(mcfqspi->clk); diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index 707966bd5610..8fbfe2483ffd 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -872,8 +872,8 @@ static int davinci_spi_probe(struct platform_device *pdev) goto free_master; } - if (pdev->dev.platform_data) { - pdata = pdev->dev.platform_data; + if (dev_get_platdata(&pdev->dev)) { + pdata = dev_get_platdata(&pdev->dev); dspi->pdata = *pdata; } else { /* update dspi pdata with that from the DT */ diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c new file mode 100644 index 000000000000..7d84418a01d8 --- /dev/null +++ b/drivers/spi/spi-efm32.c @@ -0,0 +1,516 @@ +/* + * Copyright (C) 2012-2013 Uwe Kleine-Koenig for Pengutronix + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 as published by the + * Free Software Foundation. + */ +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/spi/spi.h> +#include <linux/spi/spi_bitbang.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/of_gpio.h> +#include <linux/platform_data/efm32-spi.h> + +#define DRIVER_NAME "efm32-spi" + +#define MASK_VAL(mask, val) ((val << __ffs(mask)) & mask) + +#define REG_CTRL 0x00 +#define REG_CTRL_SYNC 0x0001 +#define REG_CTRL_CLKPOL 0x0100 +#define REG_CTRL_CLKPHA 0x0200 +#define REG_CTRL_MSBF 0x0400 +#define REG_CTRL_TXBIL 0x1000 + +#define REG_FRAME 0x04 +#define REG_FRAME_DATABITS__MASK 0x000f +#define REG_FRAME_DATABITS(n) ((n) - 3) + +#define REG_CMD 0x0c +#define REG_CMD_RXEN 0x0001 +#define REG_CMD_RXDIS 0x0002 +#define REG_CMD_TXEN 0x0004 +#define REG_CMD_TXDIS 0x0008 +#define REG_CMD_MASTEREN 0x0010 + +#define REG_STATUS 0x10 +#define REG_STATUS_TXENS 0x0002 +#define REG_STATUS_TXC 0x0020 +#define REG_STATUS_TXBL 0x0040 +#define REG_STATUS_RXDATAV 0x0080 + +#define REG_CLKDIV 0x14 + +#define REG_RXDATAX 0x18 +#define REG_RXDATAX_RXDATA__MASK 0x01ff +#define REG_RXDATAX_PERR 0x4000 +#define REG_RXDATAX_FERR 0x8000 + +#define REG_TXDATA 0x34 + +#define REG_IF 0x40 +#define REG_IF_TXBL 0x0002 +#define REG_IF_RXDATAV 0x0004 + +#define REG_IFS 0x44 +#define REG_IFC 0x48 +#define REG_IEN 0x4c + +#define REG_ROUTE 0x54 +#define REG_ROUTE_RXPEN 0x0001 +#define REG_ROUTE_TXPEN 0x0002 +#define REG_ROUTE_CLKPEN 0x0008 +#define REG_ROUTE_LOCATION__MASK 0x0700 +#define REG_ROUTE_LOCATION(n) MASK_VAL(REG_ROUTE_LOCATION__MASK, (n)) + +struct efm32_spi_ddata { + struct spi_bitbang bitbang; + + spinlock_t lock; + + struct clk *clk; + void __iomem *base; + unsigned int rxirq, txirq; + struct efm32_spi_pdata pdata; + + /* irq data */ + struct completion done; + const u8 *tx_buf; + u8 *rx_buf; + unsigned tx_len, rx_len; + + /* chip selects */ + unsigned csgpio[]; +}; + +#define ddata_to_dev(ddata) (&(ddata->bitbang.master->dev)) +#define efm32_spi_vdbg(ddata, format, arg...) \ + dev_vdbg(ddata_to_dev(ddata), format, ##arg) + +static void efm32_spi_write32(struct efm32_spi_ddata *ddata, + u32 value, unsigned offset) +{ + writel_relaxed(value, ddata->base + offset); +} + +static u32 efm32_spi_read32(struct efm32_spi_ddata *ddata, unsigned offset) +{ + return readl_relaxed(ddata->base + offset); +} + +static void efm32_spi_chipselect(struct spi_device *spi, int is_on) +{ + struct efm32_spi_ddata *ddata = spi_master_get_devdata(spi->master); + int value = !(spi->mode & SPI_CS_HIGH) == !(is_on == BITBANG_CS_ACTIVE); + + gpio_set_value(ddata->csgpio[spi->chip_select], value); +} + +static int efm32_spi_setup_transfer(struct spi_device *spi, + struct spi_transfer *t) +{ + struct efm32_spi_ddata *ddata = spi_master_get_devdata(spi->master); + + unsigned bpw = t->bits_per_word ?: spi->bits_per_word; + unsigned speed = t->speed_hz ?: spi->max_speed_hz; + unsigned long clkfreq = clk_get_rate(ddata->clk); + u32 clkdiv; + + efm32_spi_write32(ddata, REG_CTRL_SYNC | REG_CTRL_MSBF | + (spi->mode & SPI_CPHA ? REG_CTRL_CLKPHA : 0) | + (spi->mode & SPI_CPOL ? REG_CTRL_CLKPOL : 0), REG_CTRL); + + efm32_spi_write32(ddata, + REG_FRAME_DATABITS(bpw), REG_FRAME); + + if (2 * speed >= clkfreq) + clkdiv = 0; + else + clkdiv = 64 * (DIV_ROUND_UP(2 * clkfreq, speed) - 4); + + if (clkdiv > (1U << 21)) + return -EINVAL; + + efm32_spi_write32(ddata, clkdiv, REG_CLKDIV); + efm32_spi_write32(ddata, REG_CMD_MASTEREN, REG_CMD); + efm32_spi_write32(ddata, REG_CMD_RXEN | REG_CMD_TXEN, REG_CMD); + + return 0; +} + +static void efm32_spi_tx_u8(struct efm32_spi_ddata *ddata) +{ + u8 val = 0; + + if (ddata->tx_buf) { + val = *ddata->tx_buf; + ddata->tx_buf++; + } + + ddata->tx_len--; + efm32_spi_write32(ddata, val, REG_TXDATA); + efm32_spi_vdbg(ddata, "%s: tx 0x%x\n", __func__, val); +} + +static void efm32_spi_rx_u8(struct efm32_spi_ddata *ddata) +{ + u32 rxdata = efm32_spi_read32(ddata, REG_RXDATAX); + efm32_spi_vdbg(ddata, "%s: rx 0x%x\n", __func__, rxdata); + + if (ddata->rx_buf) { + *ddata->rx_buf = rxdata; + ddata->rx_buf++; + } + + ddata->rx_len--; +} + +static void efm32_spi_filltx(struct efm32_spi_ddata *ddata) +{ + while (ddata->tx_len && + ddata->tx_len + 2 > ddata->rx_len && + efm32_spi_read32(ddata, REG_STATUS) & REG_STATUS_TXBL) { + efm32_spi_tx_u8(ddata); + } +} + +static int efm32_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) +{ + struct efm32_spi_ddata *ddata = spi_master_get_devdata(spi->master); + int ret = -EBUSY; + + spin_lock_irq(&ddata->lock); + + if (ddata->tx_buf || ddata->rx_buf) + goto out_unlock; + + ddata->tx_buf = t->tx_buf; + ddata->rx_buf = t->rx_buf; + ddata->tx_len = ddata->rx_len = + t->len * DIV_ROUND_UP(t->bits_per_word, 8); + + efm32_spi_filltx(ddata); + + init_completion(&ddata->done); + + efm32_spi_write32(ddata, REG_IF_TXBL | REG_IF_RXDATAV, REG_IEN); + + spin_unlock_irq(&ddata->lock); + + wait_for_completion(&ddata->done); + + spin_lock_irq(&ddata->lock); + + ret = t->len - max(ddata->tx_len, ddata->rx_len); + + efm32_spi_write32(ddata, 0, REG_IEN); + ddata->tx_buf = ddata->rx_buf = NULL; + +out_unlock: + spin_unlock_irq(&ddata->lock); + + return ret; +} + +static irqreturn_t efm32_spi_rxirq(int irq, void *data) +{ + struct efm32_spi_ddata *ddata = data; + irqreturn_t ret = IRQ_NONE; + + spin_lock(&ddata->lock); + + while (ddata->rx_len > 0 && + efm32_spi_read32(ddata, REG_STATUS) & + REG_STATUS_RXDATAV) { + efm32_spi_rx_u8(ddata); + + ret = IRQ_HANDLED; + } + + if (!ddata->rx_len) { + u32 ien = efm32_spi_read32(ddata, REG_IEN); + + ien &= ~REG_IF_RXDATAV; + + efm32_spi_write32(ddata, ien, REG_IEN); + + complete(&ddata->done); + } + + spin_unlock(&ddata->lock); + + return ret; +} + +static irqreturn_t efm32_spi_txirq(int irq, void *data) +{ + struct efm32_spi_ddata *ddata = data; + + efm32_spi_vdbg(ddata, + "%s: txlen = %u, rxlen = %u, if=0x%08x, stat=0x%08x\n", + __func__, ddata->tx_len, ddata->rx_len, + efm32_spi_read32(ddata, REG_IF), + efm32_spi_read32(ddata, REG_STATUS)); + + spin_lock(&ddata->lock); + + efm32_spi_filltx(ddata); + + efm32_spi_vdbg(ddata, "%s: txlen = %u, rxlen = %u\n", + __func__, ddata->tx_len, ddata->rx_len); + + if (!ddata->tx_len) { + u32 ien = efm32_spi_read32(ddata, REG_IEN); + + ien &= ~REG_IF_TXBL; + + efm32_spi_write32(ddata, ien, REG_IEN); + efm32_spi_vdbg(ddata, "disable TXBL\n"); + } + + spin_unlock(&ddata->lock); + + return IRQ_HANDLED; +} + +static const struct efm32_spi_pdata efm32_spi_pdata_default = { + .location = 1, +}; + +static u32 efm32_spi_get_configured_location(struct efm32_spi_ddata *ddata) +{ + u32 reg = efm32_spi_read32(ddata, REG_ROUTE); + + return (reg & REG_ROUTE_LOCATION__MASK) >> __ffs(REG_ROUTE_LOCATION__MASK); +} + +static int efm32_spi_probe_dt(struct platform_device *pdev, + struct spi_master *master, struct efm32_spi_ddata *ddata) +{ + struct device_node *np = pdev->dev.of_node; + u32 location; + int ret; + + if (!np) + return 1; + + ret = of_property_read_u32(np, "location", &location); + if (!ret) { + dev_dbg(&pdev->dev, "using location %u\n", location); + } else { + /* default to location configured in hardware */ + location = efm32_spi_get_configured_location(ddata); + + dev_info(&pdev->dev, "fall back to location %u\n", location); + } + + ddata->pdata.location = location; + + /* spi core takes care about the bus number using an alias */ + master->bus_num = -1; + + return 0; +} + +static int efm32_spi_probe(struct platform_device *pdev) +{ + struct efm32_spi_ddata *ddata; + struct resource *res; + int ret; + struct spi_master *master; + struct device_node *np = pdev->dev.of_node; + unsigned int num_cs, i; + + num_cs = of_gpio_named_count(np, "cs-gpios"); + + master = spi_alloc_master(&pdev->dev, + sizeof(*ddata) + num_cs * sizeof(unsigned)); + if (!master) { + dev_dbg(&pdev->dev, + "failed to allocate spi master controller\n"); + return -ENOMEM; + } + platform_set_drvdata(pdev, master); + + master->dev.of_node = pdev->dev.of_node; + + master->num_chipselect = num_cs; + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; + master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 16); + + ddata = spi_master_get_devdata(master); + + ddata->bitbang.master = spi_master_get(master); + ddata->bitbang.chipselect = efm32_spi_chipselect; + ddata->bitbang.setup_transfer = efm32_spi_setup_transfer; + ddata->bitbang.txrx_bufs = efm32_spi_txrx_bufs; + + spin_lock_init(&ddata->lock); + + ddata->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(ddata->clk)) { + ret = PTR_ERR(ddata->clk); + dev_err(&pdev->dev, "failed to get clock: %d\n", ret); + goto err; + } + + for (i = 0; i < num_cs; ++i) { + ret = of_get_named_gpio(np, "cs-gpios", i); + if (ret < 0) { + dev_err(&pdev->dev, "failed to get csgpio#%u (%d)\n", + i, ret); + goto err; + } + ddata->csgpio[i] = ret; + dev_dbg(&pdev->dev, "csgpio#%u = %u\n", i, ddata->csgpio[i]); + ret = devm_gpio_request_one(&pdev->dev, ddata->csgpio[i], + GPIOF_OUT_INIT_LOW, DRIVER_NAME); + if (ret < 0) { + dev_err(&pdev->dev, + "failed to configure csgpio#%u (%d)\n", + i, ret); + goto err; + } + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + ret = -ENODEV; + dev_err(&pdev->dev, "failed to determine base address\n"); + goto err; + } + + if (resource_size(res) < 60) { + ret = -EINVAL; + dev_err(&pdev->dev, "memory resource too small\n"); + goto err; + } + + ddata->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(ddata->base)) { + ret = PTR_ERR(ddata->base); + goto err; + } + + ret = platform_get_irq(pdev, 0); + if (ret <= 0) { + dev_err(&pdev->dev, "failed to get rx irq (%d)\n", ret); + goto err; + } + + ddata->rxirq = ret; + + ret = platform_get_irq(pdev, 1); + if (ret <= 0) + ret = ddata->rxirq + 1; + + ddata->txirq = ret; + + ret = clk_prepare_enable(ddata->clk); + if (ret < 0) { + dev_err(&pdev->dev, "failed to enable clock (%d)\n", ret); + goto err; + } + + ret = efm32_spi_probe_dt(pdev, master, ddata); + if (ret > 0) { + /* not created by device tree */ + const struct efm32_spi_pdata *pdata = + dev_get_platdata(&pdev->dev); + + if (pdata) + ddata->pdata = *pdata; + else + ddata->pdata.location = + efm32_spi_get_configured_location(ddata); + + master->bus_num = pdev->id; + + } else if (ret < 0) { + goto err_disable_clk; + } + + efm32_spi_write32(ddata, 0, REG_IEN); + efm32_spi_write32(ddata, REG_ROUTE_TXPEN | REG_ROUTE_RXPEN | + REG_ROUTE_CLKPEN | + REG_ROUTE_LOCATION(ddata->pdata.location), REG_ROUTE); + + ret = request_irq(ddata->rxirq, efm32_spi_rxirq, + 0, DRIVER_NAME " rx", ddata); + if (ret) { + dev_err(&pdev->dev, "failed to register rxirq (%d)\n", ret); + goto err_disable_clk; + } + + ret = request_irq(ddata->txirq, efm32_spi_txirq, + 0, DRIVER_NAME " tx", ddata); + if (ret) { + dev_err(&pdev->dev, "failed to register txirq (%d)\n", ret); + goto err_free_rx_irq; + } + + ret = spi_bitbang_start(&ddata->bitbang); + if (ret) { + dev_err(&pdev->dev, "spi_bitbang_start failed (%d)\n", ret); + + free_irq(ddata->txirq, ddata); +err_free_rx_irq: + free_irq(ddata->rxirq, ddata); +err_disable_clk: + clk_disable_unprepare(ddata->clk); +err: + spi_master_put(master); + kfree(master); + } + + return ret; +} + +static int efm32_spi_remove(struct platform_device *pdev) +{ + struct spi_master *master = platform_get_drvdata(pdev); + struct efm32_spi_ddata *ddata = spi_master_get_devdata(master); + + efm32_spi_write32(ddata, 0, REG_IEN); + + free_irq(ddata->txirq, ddata); + free_irq(ddata->rxirq, ddata); + clk_disable_unprepare(ddata->clk); + spi_master_put(master); + kfree(master); + + return 0; +} + +static const struct of_device_id efm32_spi_dt_ids[] = { + { + .compatible = "efm32,spi", + }, { + /* sentinel */ + } +}; +MODULE_DEVICE_TABLE(of, efm32_spi_dt_ids); + +static struct platform_driver efm32_spi_driver = { + .probe = efm32_spi_probe, + .remove = efm32_spi_remove, + + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = efm32_spi_dt_ids, + }, +}; +module_platform_driver(efm32_spi_driver); + +MODULE_AUTHOR("Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>"); +MODULE_DESCRIPTION("EFM32 SPI driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c index cad30b8a1d71..d22c00a227b6 100644 --- a/drivers/spi/spi-ep93xx.c +++ b/drivers/spi/spi-ep93xx.c @@ -26,7 +26,6 @@ #include <linux/interrupt.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/workqueue.h> #include <linux/sched.h> #include <linux/scatterlist.h> #include <linux/spi/spi.h> @@ -70,19 +69,13 @@ /** * struct ep93xx_spi - EP93xx SPI controller structure - * @lock: spinlock that protects concurrent accesses to fields @running, - * @current_msg and @msg_queue * @pdev: pointer to platform device * @clk: clock for the controller * @regs_base: pointer to ioremap()'d registers * @sspdr_phys: physical address of the SSPDR register * @min_rate: minimum clock rate (in Hz) supported by the controller * @max_rate: maximum clock rate (in Hz) supported by the controller - * @running: is the queue running - * @wq: workqueue used by the driver - * @msg_work: work that is queued for the driver * @wait: wait here until given transfer is completed - * @msg_queue: queue for the messages * @current_msg: message that is currently processed (or %NULL if none) * @tx: current byte in transfer to transmit * @rx: current byte in transfer to receive @@ -96,30 +89,15 @@ * @tx_sgt: sg table for TX transfers * @zeropage: dummy page used as RX buffer when only TX buffer is passed in by * the client - * - * This structure holds EP93xx SPI controller specific information. When - * @running is %true, driver accepts transfer requests from protocol drivers. - * @current_msg is used to hold pointer to the message that is currently - * processed. If @current_msg is %NULL, it means that no processing is going - * on. - * - * Most of the fields are only written once and they can be accessed without - * taking the @lock. Fields that are accessed concurrently are: @current_msg, - * @running, and @msg_queue. */ struct ep93xx_spi { - spinlock_t lock; const struct platform_device *pdev; struct clk *clk; void __iomem *regs_base; unsigned long sspdr_phys; unsigned long min_rate; unsigned long max_rate; - bool running; - struct workqueue_struct *wq; - struct work_struct msg_work; struct completion wait; - struct list_head msg_queue; struct spi_message *current_msg; size_t tx; size_t rx; @@ -136,50 +114,36 @@ struct ep93xx_spi { /** * struct ep93xx_spi_chip - SPI device hardware settings * @spi: back pointer to the SPI device - * @rate: max rate in hz this chip supports - * @div_cpsr: cpsr (pre-scaler) divider - * @div_scr: scr divider - * @dss: bits per word (4 - 16 bits) * @ops: private chip operations - * - * This structure is used to store hardware register specific settings for each - * SPI device. Settings are written to hardware by function - * ep93xx_spi_chip_setup(). */ struct ep93xx_spi_chip { const struct spi_device *spi; - unsigned long rate; - u8 div_cpsr; - u8 div_scr; - u8 dss; struct ep93xx_spi_chip_ops *ops; }; /* converts bits per word to CR0.DSS value */ #define bits_per_word_to_dss(bpw) ((bpw) - 1) -static inline void -ep93xx_spi_write_u8(const struct ep93xx_spi *espi, u16 reg, u8 value) +static void ep93xx_spi_write_u8(const struct ep93xx_spi *espi, + u16 reg, u8 value) { - __raw_writeb(value, espi->regs_base + reg); + writeb(value, espi->regs_base + reg); } -static inline u8 -ep93xx_spi_read_u8(const struct ep93xx_spi *spi, u16 reg) +static u8 ep93xx_spi_read_u8(const struct ep93xx_spi *spi, u16 reg) { - return __raw_readb(spi->regs_base + reg); + return readb(spi->regs_base + reg); } -static inline void -ep93xx_spi_write_u16(const struct ep93xx_spi *espi, u16 reg, u16 value) +static void ep93xx_spi_write_u16(const struct ep93xx_spi *espi, + u16 reg, u16 value) { - __raw_writew(value, espi->regs_base + reg); + writew(value, espi->regs_base + reg); } -static inline u16 -ep93xx_spi_read_u16(const struct ep93xx_spi *spi, u16 reg) +static u16 ep93xx_spi_read_u16(const struct ep93xx_spi *spi, u16 reg) { - return __raw_readw(spi->regs_base + reg); + return readw(spi->regs_base + reg); } static int ep93xx_spi_enable(const struct ep93xx_spi *espi) @@ -230,17 +194,13 @@ static void ep93xx_spi_disable_interrupts(const struct ep93xx_spi *espi) /** * ep93xx_spi_calc_divisors() - calculates SPI clock divisors * @espi: ep93xx SPI controller struct - * @chip: divisors are calculated for this chip * @rate: desired SPI output clock rate - * - * Function calculates cpsr (clock pre-scaler) and scr divisors based on - * given @rate and places them to @chip->div_cpsr and @chip->div_scr. If, - * for some reason, divisors cannot be calculated nothing is stored and - * %-EINVAL is returned. + * @div_cpsr: pointer to return the cpsr (pre-scaler) divider + * @div_scr: pointer to return the scr divider */ static int ep93xx_spi_calc_divisors(const struct ep93xx_spi *espi, - struct ep93xx_spi_chip *chip, - unsigned long rate) + unsigned long rate, + u8 *div_cpsr, u8 *div_scr) { unsigned long spi_clk_rate = clk_get_rate(espi->clk); int cpsr, scr; @@ -248,7 +208,7 @@ static int ep93xx_spi_calc_divisors(const struct ep93xx_spi *espi, /* * Make sure that max value is between values supported by the * controller. Note that minimum value is already checked in - * ep93xx_spi_transfer(). + * ep93xx_spi_transfer_one_message(). */ rate = clamp(rate, espi->min_rate, espi->max_rate); @@ -263,8 +223,8 @@ static int ep93xx_spi_calc_divisors(const struct ep93xx_spi *espi, for (cpsr = 2; cpsr <= 254; cpsr += 2) { for (scr = 0; scr <= 255; scr++) { if ((spi_clk_rate / (cpsr * (scr + 1))) <= rate) { - chip->div_scr = (u8)scr; - chip->div_cpsr = (u8)cpsr; + *div_scr = (u8)scr; + *div_cpsr = (u8)cpsr; return 0; } } @@ -319,73 +279,11 @@ static int ep93xx_spi_setup(struct spi_device *spi) spi_set_ctldata(spi, chip); } - if (spi->max_speed_hz != chip->rate) { - int err; - - err = ep93xx_spi_calc_divisors(espi, chip, spi->max_speed_hz); - if (err != 0) { - spi_set_ctldata(spi, NULL); - kfree(chip); - return err; - } - chip->rate = spi->max_speed_hz; - } - - chip->dss = bits_per_word_to_dss(spi->bits_per_word); - ep93xx_spi_cs_control(spi, false); return 0; } /** - * ep93xx_spi_transfer() - queue message to be transferred - * @spi: target SPI device - * @msg: message to be transferred - * - * This function is called by SPI device drivers when they are going to transfer - * a new message. It simply puts the message in the queue and schedules - * workqueue to perform the actual transfer later on. - * - * Returns %0 on success and negative error in case of failure. - */ -static int ep93xx_spi_transfer(struct spi_device *spi, struct spi_message *msg) -{ - struct ep93xx_spi *espi = spi_master_get_devdata(spi->master); - struct spi_transfer *t; - unsigned long flags; - - if (!msg || !msg->complete) - return -EINVAL; - - /* first validate each transfer */ - list_for_each_entry(t, &msg->transfers, transfer_list) { - if (t->speed_hz && t->speed_hz < espi->min_rate) - return -EINVAL; - } - - /* - * Now that we own the message, let's initialize it so that it is - * suitable for us. We use @msg->status to signal whether there was - * error in transfer and @msg->state is used to hold pointer to the - * current transfer (or %NULL if no active current transfer). - */ - msg->state = NULL; - msg->status = 0; - msg->actual_length = 0; - - spin_lock_irqsave(&espi->lock, flags); - if (!espi->running) { - spin_unlock_irqrestore(&espi->lock, flags); - return -ESHUTDOWN; - } - list_add_tail(&msg->queue, &espi->msg_queue); - queue_work(espi->wq, &espi->msg_work); - spin_unlock_irqrestore(&espi->lock, flags); - - return 0; -} - -/** * ep93xx_spi_cleanup() - cleans up master controller specific state * @spi: SPI device to cleanup * @@ -409,39 +307,40 @@ static void ep93xx_spi_cleanup(struct spi_device *spi) * ep93xx_spi_chip_setup() - configures hardware according to given @chip * @espi: ep93xx SPI controller struct * @chip: chip specific settings - * - * This function sets up the actual hardware registers with settings given in - * @chip. Note that no validation is done so make sure that callers validate - * settings before calling this. + * @speed_hz: transfer speed + * @bits_per_word: transfer bits_per_word */ -static void ep93xx_spi_chip_setup(const struct ep93xx_spi *espi, - const struct ep93xx_spi_chip *chip) +static int ep93xx_spi_chip_setup(const struct ep93xx_spi *espi, + const struct ep93xx_spi_chip *chip, + u32 speed_hz, u8 bits_per_word) { + u8 dss = bits_per_word_to_dss(bits_per_word); + u8 div_cpsr = 0; + u8 div_scr = 0; u16 cr0; + int err; - cr0 = chip->div_scr << SSPCR0_SCR_SHIFT; + err = ep93xx_spi_calc_divisors(espi, speed_hz, &div_cpsr, &div_scr); + if (err) + return err; + + cr0 = div_scr << SSPCR0_SCR_SHIFT; cr0 |= (chip->spi->mode & (SPI_CPHA|SPI_CPOL)) << SSPCR0_MODE_SHIFT; - cr0 |= chip->dss; + cr0 |= dss; dev_dbg(&espi->pdev->dev, "setup: mode %d, cpsr %d, scr %d, dss %d\n", - chip->spi->mode, chip->div_cpsr, chip->div_scr, chip->dss); + chip->spi->mode, div_cpsr, div_scr, dss); dev_dbg(&espi->pdev->dev, "setup: cr0 %#x", cr0); - ep93xx_spi_write_u8(espi, SSPCPSR, chip->div_cpsr); + ep93xx_spi_write_u8(espi, SSPCPSR, div_cpsr); ep93xx_spi_write_u16(espi, SSPCR0, cr0); -} - -static inline int bits_per_word(const struct ep93xx_spi *espi) -{ - struct spi_message *msg = espi->current_msg; - struct spi_transfer *t = msg->state; - return t->bits_per_word; + return 0; } static void ep93xx_do_write(struct ep93xx_spi *espi, struct spi_transfer *t) { - if (bits_per_word(espi) > 8) { + if (t->bits_per_word > 8) { u16 tx_val = 0; if (t->tx_buf) @@ -460,7 +359,7 @@ static void ep93xx_do_write(struct ep93xx_spi *espi, struct spi_transfer *t) static void ep93xx_do_read(struct ep93xx_spi *espi, struct spi_transfer *t) { - if (bits_per_word(espi) > 8) { + if (t->bits_per_word > 8) { u16 rx_val; rx_val = ep93xx_spi_read_u16(espi, SSPDR); @@ -546,7 +445,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_transfer_direction dir) size_t len = t->len; int i, ret, nents; - if (bits_per_word(espi) > 8) + if (t->bits_per_word > 8) buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES; else buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE; @@ -610,7 +509,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_transfer_direction dir) } if (WARN_ON(len)) { - dev_warn(&espi->pdev->dev, "len = %d expected 0!", len); + dev_warn(&espi->pdev->dev, "len = %zu expected 0!", len); return ERR_PTR(-EINVAL); } @@ -708,37 +607,16 @@ static void ep93xx_spi_process_transfer(struct ep93xx_spi *espi, struct spi_transfer *t) { struct ep93xx_spi_chip *chip = spi_get_ctldata(msg->spi); + int err; msg->state = t; - /* - * Handle any transfer specific settings if needed. We use - * temporary chip settings here and restore original later when - * the transfer is finished. - */ - if (t->speed_hz || t->bits_per_word) { - struct ep93xx_spi_chip tmp_chip = *chip; - - if (t->speed_hz) { - int err; - - err = ep93xx_spi_calc_divisors(espi, &tmp_chip, - t->speed_hz); - if (err) { - dev_err(&espi->pdev->dev, - "failed to adjust speed\n"); - msg->status = err; - return; - } - } - - if (t->bits_per_word) - tmp_chip.dss = bits_per_word_to_dss(t->bits_per_word); - - /* - * Set up temporary new hw settings for this transfer. - */ - ep93xx_spi_chip_setup(espi, &tmp_chip); + err = ep93xx_spi_chip_setup(espi, chip, t->speed_hz, t->bits_per_word); + if (err) { + dev_err(&espi->pdev->dev, + "failed to setup chip for transfer\n"); + msg->status = err; + return; } espi->rx = 0; @@ -783,9 +661,6 @@ static void ep93xx_spi_process_transfer(struct ep93xx_spi *espi, ep93xx_spi_cs_control(msg->spi, true); } } - - if (t->speed_hz || t->bits_per_word) - ep93xx_spi_chip_setup(espi, chip); } /* @@ -838,10 +713,8 @@ static void ep93xx_spi_process_message(struct ep93xx_spi *espi, espi->fifo_level = 0; /* - * Update SPI controller registers according to spi device and assert - * the chipselect. + * Assert the chipselect. */ - ep93xx_spi_chip_setup(espi, spi_get_ctldata(msg->spi)); ep93xx_spi_cs_control(msg->spi, true); list_for_each_entry(t, &msg->transfers, transfer_list) { @@ -858,50 +731,29 @@ static void ep93xx_spi_process_message(struct ep93xx_spi *espi, ep93xx_spi_disable(espi); } -#define work_to_espi(work) (container_of((work), struct ep93xx_spi, msg_work)) - -/** - * ep93xx_spi_work() - EP93xx SPI workqueue worker function - * @work: work struct - * - * Workqueue worker function. This function is called when there are new - * SPI messages to be processed. Message is taken out from the queue and then - * passed to ep93xx_spi_process_message(). - * - * After message is transferred, protocol driver is notified by calling - * @msg->complete(). In case of error, @msg->status is set to negative error - * number, otherwise it contains zero (and @msg->actual_length is updated). - */ -static void ep93xx_spi_work(struct work_struct *work) +static int ep93xx_spi_transfer_one_message(struct spi_master *master, + struct spi_message *msg) { - struct ep93xx_spi *espi = work_to_espi(work); - struct spi_message *msg; + struct ep93xx_spi *espi = spi_master_get_devdata(master); + struct spi_transfer *t; - spin_lock_irq(&espi->lock); - if (!espi->running || espi->current_msg || - list_empty(&espi->msg_queue)) { - spin_unlock_irq(&espi->lock); - return; + /* first validate each transfer */ + list_for_each_entry(t, &msg->transfers, transfer_list) { + if (t->speed_hz < espi->min_rate) + return -EINVAL; } - msg = list_first_entry(&espi->msg_queue, struct spi_message, queue); - list_del_init(&msg->queue); - espi->current_msg = msg; - spin_unlock_irq(&espi->lock); - ep93xx_spi_process_message(espi, msg); + msg->state = NULL; + msg->status = 0; + msg->actual_length = 0; - /* - * Update the current message and re-schedule ourselves if there are - * more messages in the queue. - */ - spin_lock_irq(&espi->lock); + espi->current_msg = msg; + ep93xx_spi_process_message(espi, msg); espi->current_msg = NULL; - if (espi->running && !list_empty(&espi->msg_queue)) - queue_work(espi->wq, &espi->msg_work); - spin_unlock_irq(&espi->lock); - /* notify the protocol driver that we are done with this message */ - msg->complete(msg->context); + spi_finalize_current_message(master); + + return 0; } static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id) @@ -1022,16 +874,26 @@ static int ep93xx_spi_probe(struct platform_device *pdev) int irq; int error; - info = pdev->dev.platform_data; + info = dev_get_platdata(&pdev->dev); + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(&pdev->dev, "failed to get irq resources\n"); + return -EBUSY; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "unable to get iomem resource\n"); + return -ENODEV; + } master = spi_alloc_master(&pdev->dev, sizeof(*espi)); - if (!master) { - dev_err(&pdev->dev, "failed to allocate spi master\n"); + if (!master) return -ENOMEM; - } master->setup = ep93xx_spi_setup; - master->transfer = ep93xx_spi_transfer; + master->transfer_one_message = ep93xx_spi_transfer_one_message; master->cleanup = ep93xx_spi_cleanup; master->bus_num = pdev->id; master->num_chipselect = info->num_chipselect; @@ -1042,14 +904,13 @@ static int ep93xx_spi_probe(struct platform_device *pdev) espi = spi_master_get_devdata(master); - espi->clk = clk_get(&pdev->dev, NULL); + espi->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(espi->clk)) { dev_err(&pdev->dev, "unable to get spi clock\n"); error = PTR_ERR(espi->clk); goto fail_release_master; } - spin_lock_init(&espi->lock); init_completion(&espi->wait); /* @@ -1060,55 +921,31 @@ static int ep93xx_spi_probe(struct platform_device *pdev) espi->min_rate = clk_get_rate(espi->clk) / (254 * 256); espi->pdev = pdev; - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - error = -EBUSY; - dev_err(&pdev->dev, "failed to get irq resources\n"); - goto fail_put_clock; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "unable to get iomem resource\n"); - error = -ENODEV; - goto fail_put_clock; - } - espi->sspdr_phys = res->start + SSPDR; espi->regs_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(espi->regs_base)) { error = PTR_ERR(espi->regs_base); - goto fail_put_clock; + goto fail_release_master; } error = devm_request_irq(&pdev->dev, irq, ep93xx_spi_interrupt, 0, "ep93xx-spi", espi); if (error) { dev_err(&pdev->dev, "failed to request irq\n"); - goto fail_put_clock; + goto fail_release_master; } if (info->use_dma && ep93xx_spi_setup_dma(espi)) dev_warn(&pdev->dev, "DMA setup failed. Falling back to PIO\n"); - espi->wq = create_singlethread_workqueue("ep93xx_spid"); - if (!espi->wq) { - dev_err(&pdev->dev, "unable to create workqueue\n"); - error = -ENOMEM; - goto fail_free_dma; - } - INIT_WORK(&espi->msg_work, ep93xx_spi_work); - INIT_LIST_HEAD(&espi->msg_queue); - espi->running = true; - /* make sure that the hardware is disabled */ ep93xx_spi_write_u8(espi, SSPCR1, 0); error = spi_register_master(master); if (error) { dev_err(&pdev->dev, "failed to register SPI master\n"); - goto fail_free_queue; + goto fail_free_dma; } dev_info(&pdev->dev, "EP93xx SPI Controller at 0x%08lx irq %d\n", @@ -1116,12 +953,8 @@ static int ep93xx_spi_probe(struct platform_device *pdev) return 0; -fail_free_queue: - destroy_workqueue(espi->wq); fail_free_dma: ep93xx_spi_release_dma(espi); -fail_put_clock: - clk_put(espi->clk); fail_release_master: spi_master_put(master); @@ -1133,31 +966,7 @@ static int ep93xx_spi_remove(struct platform_device *pdev) struct spi_master *master = platform_get_drvdata(pdev); struct ep93xx_spi *espi = spi_master_get_devdata(master); - spin_lock_irq(&espi->lock); - espi->running = false; - spin_unlock_irq(&espi->lock); - - destroy_workqueue(espi->wq); - - /* - * Complete remaining messages with %-ESHUTDOWN status. - */ - spin_lock_irq(&espi->lock); - while (!list_empty(&espi->msg_queue)) { - struct spi_message *msg; - - msg = list_first_entry(&espi->msg_queue, - struct spi_message, queue); - list_del_init(&msg->queue); - msg->status = -ESHUTDOWN; - spin_unlock_irq(&espi->lock); - msg->complete(msg->context); - spin_lock_irq(&espi->lock); - } - spin_unlock_irq(&espi->lock); - ep93xx_spi_release_dma(espi); - clk_put(espi->clk); spi_unregister_master(master); return 0; diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c new file mode 100644 index 000000000000..6cd07d13ecab --- /dev/null +++ b/drivers/spi/spi-fsl-dspi.c @@ -0,0 +1,557 @@ +/* + * drivers/spi/spi-fsl-dspi.c + * + * Copyright 2013 Freescale Semiconductor, Inc. + * + * Freescale DSPI driver + * This file contains a driver for the Freescale DSPI + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/errno.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/spi/spi.h> +#include <linux/spi/spi_bitbang.h> +#include <linux/pm_runtime.h> +#include <linux/of.h> +#include <linux/of_device.h> + +#define DRIVER_NAME "fsl-dspi" + +#define TRAN_STATE_RX_VOID 0x01 +#define TRAN_STATE_TX_VOID 0x02 +#define TRAN_STATE_WORD_ODD_NUM 0x04 + +#define DSPI_FIFO_SIZE 4 + +#define SPI_MCR 0x00 +#define SPI_MCR_MASTER (1 << 31) +#define SPI_MCR_PCSIS (0x3F << 16) +#define SPI_MCR_CLR_TXF (1 << 11) +#define SPI_MCR_CLR_RXF (1 << 10) + +#define SPI_TCR 0x08 + +#define SPI_CTAR(x) (0x0c + (x * 4)) +#define SPI_CTAR_FMSZ(x) (((x) & 0x0000000f) << 27) +#define SPI_CTAR_CPOL(x) ((x) << 26) +#define SPI_CTAR_CPHA(x) ((x) << 25) +#define SPI_CTAR_LSBFE(x) ((x) << 24) +#define SPI_CTAR_PCSSCR(x) (((x) & 0x00000003) << 22) +#define SPI_CTAR_PASC(x) (((x) & 0x00000003) << 20) +#define SPI_CTAR_PDT(x) (((x) & 0x00000003) << 18) +#define SPI_CTAR_PBR(x) (((x) & 0x00000003) << 16) +#define SPI_CTAR_CSSCK(x) (((x) & 0x0000000f) << 12) +#define SPI_CTAR_ASC(x) (((x) & 0x0000000f) << 8) +#define SPI_CTAR_DT(x) (((x) & 0x0000000f) << 4) +#define SPI_CTAR_BR(x) ((x) & 0x0000000f) + +#define SPI_CTAR0_SLAVE 0x0c + +#define SPI_SR 0x2c +#define SPI_SR_EOQF 0x10000000 + +#define SPI_RSER 0x30 +#define SPI_RSER_EOQFE 0x10000000 + +#define SPI_PUSHR 0x34 +#define SPI_PUSHR_CONT (1 << 31) +#define SPI_PUSHR_CTAS(x) (((x) & 0x00000007) << 28) +#define SPI_PUSHR_EOQ (1 << 27) +#define SPI_PUSHR_CTCNT (1 << 26) +#define SPI_PUSHR_PCS(x) (((1 << x) & 0x0000003f) << 16) +#define SPI_PUSHR_TXDATA(x) ((x) & 0x0000ffff) + +#define SPI_PUSHR_SLAVE 0x34 + +#define SPI_POPR 0x38 +#define SPI_POPR_RXDATA(x) ((x) & 0x0000ffff) + +#define SPI_TXFR0 0x3c +#define SPI_TXFR1 0x40 +#define SPI_TXFR2 0x44 +#define SPI_TXFR3 0x48 +#define SPI_RXFR0 0x7c +#define SPI_RXFR1 0x80 +#define SPI_RXFR2 0x84 +#define SPI_RXFR3 0x88 + +#define SPI_FRAME_BITS(bits) SPI_CTAR_FMSZ((bits) - 1) +#define SPI_FRAME_BITS_MASK SPI_CTAR_FMSZ(0xf) +#define SPI_FRAME_BITS_16 SPI_CTAR_FMSZ(0xf) +#define SPI_FRAME_BITS_8 SPI_CTAR_FMSZ(0x7) + +#define SPI_CS_INIT 0x01 +#define SPI_CS_ASSERT 0x02 +#define SPI_CS_DROP 0x04 + +struct chip_data { + u32 mcr_val; + u32 ctar_val; + u16 void_write_data; +}; + +struct fsl_dspi { + struct spi_bitbang bitbang; + struct platform_device *pdev; + + void *base; + int irq; + struct clk *clk; + + struct spi_transfer *cur_transfer; + struct chip_data *cur_chip; + size_t len; + void *tx; + void *tx_end; + void *rx; + void *rx_end; + char dataflags; + u8 cs; + u16 void_write_data; + + wait_queue_head_t waitq; + u32 waitflags; +}; + +static inline int is_double_byte_mode(struct fsl_dspi *dspi) +{ + return ((readl(dspi->base + SPI_CTAR(dspi->cs)) & SPI_FRAME_BITS_MASK) + == SPI_FRAME_BITS(8)) ? 0 : 1; +} + +static void set_bit_mode(struct fsl_dspi *dspi, unsigned char bits) +{ + u32 temp; + + temp = readl(dspi->base + SPI_CTAR(dspi->cs)); + temp &= ~SPI_FRAME_BITS_MASK; + temp |= SPI_FRAME_BITS(bits); + writel(temp, dspi->base + SPI_CTAR(dspi->cs)); +} + +static void hz_to_spi_baud(char *pbr, char *br, int speed_hz, + unsigned long clkrate) +{ + /* Valid baud rate pre-scaler values */ + int pbr_tbl[4] = {2, 3, 5, 7}; + int brs[16] = { 2, 4, 6, 8, + 16, 32, 64, 128, + 256, 512, 1024, 2048, + 4096, 8192, 16384, 32768 }; + int temp, i = 0, j = 0; + + temp = clkrate / 2 / speed_hz; + + for (i = 0; i < ARRAY_SIZE(pbr_tbl); i++) + for (j = 0; j < ARRAY_SIZE(brs); j++) { + if (pbr_tbl[i] * brs[j] >= temp) { + *pbr = i; + *br = j; + return; + } + } + + pr_warn("Can not find valid buad rate,speed_hz is %d,clkrate is %ld\ + ,we use the max prescaler value.\n", speed_hz, clkrate); + *pbr = ARRAY_SIZE(pbr_tbl) - 1; + *br = ARRAY_SIZE(brs) - 1; +} + +static int dspi_transfer_write(struct fsl_dspi *dspi) +{ + int tx_count = 0; + int tx_word; + u16 d16; + u8 d8; + u32 dspi_pushr = 0; + int first = 1; + + tx_word = is_double_byte_mode(dspi); + + /* If we are in word mode, but only have a single byte to transfer + * then switch to byte mode temporarily. Will switch back at the + * end of the transfer. + */ + if (tx_word && (dspi->len == 1)) { + dspi->dataflags |= TRAN_STATE_WORD_ODD_NUM; + set_bit_mode(dspi, 8); + tx_word = 0; + } + + while (dspi->len && (tx_count < DSPI_FIFO_SIZE)) { + if (tx_word) { + if (dspi->len == 1) + break; + + if (!(dspi->dataflags & TRAN_STATE_TX_VOID)) { + d16 = *(u16 *)dspi->tx; + dspi->tx += 2; + } else { + d16 = dspi->void_write_data; + } + + dspi_pushr = SPI_PUSHR_TXDATA(d16) | + SPI_PUSHR_PCS(dspi->cs) | + SPI_PUSHR_CTAS(dspi->cs) | + SPI_PUSHR_CONT; + + dspi->len -= 2; + } else { + if (!(dspi->dataflags & TRAN_STATE_TX_VOID)) { + + d8 = *(u8 *)dspi->tx; + dspi->tx++; + } else { + d8 = (u8)dspi->void_write_data; + } + + dspi_pushr = SPI_PUSHR_TXDATA(d8) | + SPI_PUSHR_PCS(dspi->cs) | + SPI_PUSHR_CTAS(dspi->cs) | + SPI_PUSHR_CONT; + + dspi->len--; + } + + if (dspi->len == 0 || tx_count == DSPI_FIFO_SIZE - 1) { + /* last transfer in the transfer */ + dspi_pushr |= SPI_PUSHR_EOQ; + } else if (tx_word && (dspi->len == 1)) + dspi_pushr |= SPI_PUSHR_EOQ; + + if (first) { + first = 0; + dspi_pushr |= SPI_PUSHR_CTCNT; /* clear counter */ + } + + writel(dspi_pushr, dspi->base + SPI_PUSHR); + tx_count++; + } + + return tx_count * (tx_word + 1); +} + +static int dspi_transfer_read(struct fsl_dspi *dspi) +{ + int rx_count = 0; + int rx_word = is_double_byte_mode(dspi); + u16 d; + while ((dspi->rx < dspi->rx_end) + && (rx_count < DSPI_FIFO_SIZE)) { + if (rx_word) { + if ((dspi->rx_end - dspi->rx) == 1) + break; + + d = SPI_POPR_RXDATA(readl(dspi->base + SPI_POPR)); + + if (!(dspi->dataflags & TRAN_STATE_RX_VOID)) + *(u16 *)dspi->rx = d; + dspi->rx += 2; + + } else { + d = SPI_POPR_RXDATA(readl(dspi->base + SPI_POPR)); + if (!(dspi->dataflags & TRAN_STATE_RX_VOID)) + *(u8 *)dspi->rx = d; + dspi->rx++; + } + rx_count++; + } + + return rx_count; +} + +static int dspi_txrx_transfer(struct spi_device *spi, struct spi_transfer *t) +{ + struct fsl_dspi *dspi = spi_master_get_devdata(spi->master); + dspi->cur_transfer = t; + dspi->cur_chip = spi_get_ctldata(spi); + dspi->cs = spi->chip_select; + dspi->void_write_data = dspi->cur_chip->void_write_data; + + dspi->dataflags = 0; + dspi->tx = (void *)t->tx_buf; + dspi->tx_end = dspi->tx + t->len; + dspi->rx = t->rx_buf; + dspi->rx_end = dspi->rx + t->len; + dspi->len = t->len; + + if (!dspi->rx) + dspi->dataflags |= TRAN_STATE_RX_VOID; + + if (!dspi->tx) + dspi->dataflags |= TRAN_STATE_TX_VOID; + + writel(dspi->cur_chip->mcr_val, dspi->base + SPI_MCR); + writel(dspi->cur_chip->ctar_val, dspi->base + SPI_CTAR(dspi->cs)); + writel(SPI_RSER_EOQFE, dspi->base + SPI_RSER); + + if (t->speed_hz) + writel(dspi->cur_chip->ctar_val, + dspi->base + SPI_CTAR(dspi->cs)); + + dspi_transfer_write(dspi); + + if (wait_event_interruptible(dspi->waitq, dspi->waitflags)) + dev_err(&dspi->pdev->dev, "wait transfer complete fail!\n"); + dspi->waitflags = 0; + + return t->len - dspi->len; +} + +static void dspi_chipselect(struct spi_device *spi, int value) +{ + struct fsl_dspi *dspi = spi_master_get_devdata(spi->master); + u32 pushr = readl(dspi->base + SPI_PUSHR); + + switch (value) { + case BITBANG_CS_ACTIVE: + pushr |= SPI_PUSHR_CONT; + case BITBANG_CS_INACTIVE: + pushr &= ~SPI_PUSHR_CONT; + } + + writel(pushr, dspi->base + SPI_PUSHR); +} + +static int dspi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) +{ + struct chip_data *chip; + struct fsl_dspi *dspi = spi_master_get_devdata(spi->master); + unsigned char br = 0, pbr = 0, fmsz = 0; + + /* Only alloc on first setup */ + chip = spi_get_ctldata(spi); + if (chip == NULL) { + chip = kcalloc(1, sizeof(struct chip_data), GFP_KERNEL); + if (!chip) + return -ENOMEM; + } + + chip->mcr_val = SPI_MCR_MASTER | SPI_MCR_PCSIS | + SPI_MCR_CLR_TXF | SPI_MCR_CLR_RXF; + if ((spi->bits_per_word >= 4) && (spi->bits_per_word <= 16)) { + fmsz = spi->bits_per_word - 1; + } else { + pr_err("Invalid wordsize\n"); + kfree(chip); + return -ENODEV; + } + + chip->void_write_data = 0; + + hz_to_spi_baud(&pbr, &br, + spi->max_speed_hz, clk_get_rate(dspi->clk)); + + chip->ctar_val = SPI_CTAR_FMSZ(fmsz) + | SPI_CTAR_CPOL(spi->mode & SPI_CPOL ? 1 : 0) + | SPI_CTAR_CPHA(spi->mode & SPI_CPHA ? 1 : 0) + | SPI_CTAR_LSBFE(spi->mode & SPI_LSB_FIRST ? 1 : 0) + | SPI_CTAR_PBR(pbr) + | SPI_CTAR_BR(br); + + spi_set_ctldata(spi, chip); + + return 0; +} + +static int dspi_setup(struct spi_device *spi) +{ + if (!spi->max_speed_hz) + return -EINVAL; + + if (!spi->bits_per_word) + spi->bits_per_word = 8; + + return dspi_setup_transfer(spi, NULL); +} + +static irqreturn_t dspi_interrupt(int irq, void *dev_id) +{ + struct fsl_dspi *dspi = (struct fsl_dspi *)dev_id; + + writel(SPI_SR_EOQF, dspi->base + SPI_SR); + + dspi_transfer_read(dspi); + + if (!dspi->len) { + if (dspi->dataflags & TRAN_STATE_WORD_ODD_NUM) + set_bit_mode(dspi, 16); + dspi->waitflags = 1; + wake_up_interruptible(&dspi->waitq); + } else { + dspi_transfer_write(dspi); + + return IRQ_HANDLED; + } + + return IRQ_HANDLED; +} + +static struct of_device_id fsl_dspi_dt_ids[] = { + { .compatible = "fsl,vf610-dspi", .data = NULL, }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, fsl_dspi_dt_ids); + +#ifdef CONFIG_PM_SLEEP +static int dspi_suspend(struct device *dev) +{ + struct spi_master *master = dev_get_drvdata(dev); + struct fsl_dspi *dspi = spi_master_get_devdata(master); + + spi_master_suspend(master); + clk_disable_unprepare(dspi->clk); + + return 0; +} + +static int dspi_resume(struct device *dev) +{ + + struct spi_master *master = dev_get_drvdata(dev); + struct fsl_dspi *dspi = spi_master_get_devdata(master); + + clk_prepare_enable(dspi->clk); + spi_master_resume(master); + + return 0; +} +#endif /* CONFIG_PM_SLEEP */ + +static const struct dev_pm_ops dspi_pm = { + SET_SYSTEM_SLEEP_PM_OPS(dspi_suspend, dspi_resume) +}; + +static int dspi_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct spi_master *master; + struct fsl_dspi *dspi; + struct resource *res; + int ret = 0, cs_num, bus_num; + + master = spi_alloc_master(&pdev->dev, sizeof(struct fsl_dspi)); + if (!master) + return -ENOMEM; + + dspi = spi_master_get_devdata(master); + dspi->pdev = pdev; + dspi->bitbang.master = spi_master_get(master); + dspi->bitbang.chipselect = dspi_chipselect; + dspi->bitbang.setup_transfer = dspi_setup_transfer; + dspi->bitbang.txrx_bufs = dspi_txrx_transfer; + dspi->bitbang.master->setup = dspi_setup; + dspi->bitbang.master->dev.of_node = pdev->dev.of_node; + + master->mode_bits = SPI_CPOL | SPI_CPHA; + master->bits_per_word_mask = SPI_BPW_MASK(4) | SPI_BPW_MASK(8) | + SPI_BPW_MASK(16); + + ret = of_property_read_u32(np, "spi-num-chipselects", &cs_num); + if (ret < 0) { + dev_err(&pdev->dev, "can't get spi-num-chipselects\n"); + goto out_master_put; + } + master->num_chipselect = cs_num; + + ret = of_property_read_u32(np, "bus-num", &bus_num); + if (ret < 0) { + dev_err(&pdev->dev, "can't get bus-num\n"); + goto out_master_put; + } + master->bus_num = bus_num; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "can't get platform resource\n"); + ret = -EINVAL; + goto out_master_put; + } + + dspi->base = devm_ioremap_resource(&pdev->dev, res); + if (!dspi->base) { + ret = -EINVAL; + goto out_master_put; + } + + dspi->irq = platform_get_irq(pdev, 0); + if (dspi->irq < 0) { + dev_err(&pdev->dev, "can't get platform irq\n"); + ret = dspi->irq; + goto out_master_put; + } + + ret = devm_request_irq(&pdev->dev, dspi->irq, dspi_interrupt, 0, + pdev->name, dspi); + if (ret < 0) { + dev_err(&pdev->dev, "Unable to attach DSPI interrupt\n"); + goto out_master_put; + } + + dspi->clk = devm_clk_get(&pdev->dev, "dspi"); + if (IS_ERR(dspi->clk)) { + ret = PTR_ERR(dspi->clk); + dev_err(&pdev->dev, "unable to get clock\n"); + goto out_master_put; + } + clk_prepare_enable(dspi->clk); + + init_waitqueue_head(&dspi->waitq); + platform_set_drvdata(pdev, dspi); + + ret = spi_bitbang_start(&dspi->bitbang); + if (ret != 0) { + dev_err(&pdev->dev, "Problem registering DSPI master\n"); + goto out_clk_put; + } + + pr_info(KERN_INFO "Freescale DSPI master initialized\n"); + return ret; + +out_clk_put: + clk_disable_unprepare(dspi->clk); +out_master_put: + spi_master_put(master); + platform_set_drvdata(pdev, NULL); + + return ret; +} + +static int dspi_remove(struct platform_device *pdev) +{ + struct fsl_dspi *dspi = platform_get_drvdata(pdev); + + /* Disconnect from the SPI framework */ + spi_bitbang_stop(&dspi->bitbang); + spi_master_put(dspi->bitbang.master); + + return 0; +} + +static struct platform_driver fsl_dspi_driver = { + .driver.name = DRIVER_NAME, + .driver.of_match_table = fsl_dspi_dt_ids, + .driver.owner = THIS_MODULE, + .driver.pm = &dspi_pm, + .probe = dspi_probe, + .remove = dspi_remove, +}; +module_platform_driver(fsl_dspi_driver); + +MODULE_DESCRIPTION("Freescale DSPI Controller Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c index 6a74d7848d93..b8f1103fe28e 100644 --- a/drivers/spi/spi-fsl-espi.c +++ b/drivers/spi/spi-fsl-espi.c @@ -584,7 +584,7 @@ static void fsl_espi_remove(struct mpc8xxx_spi *mspi) static struct spi_master * fsl_espi_probe(struct device *dev, struct resource *mem, unsigned int irq) { - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); struct spi_master *master; struct mpc8xxx_spi *mpc8xxx_spi; struct fsl_espi_reg *reg_base; @@ -665,7 +665,7 @@ err: static int of_fsl_espi_get_chipselects(struct device *dev) { struct device_node *np = dev->of_node; - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); const u32 *prop; int len; diff --git a/drivers/spi/spi-fsl-lib.c b/drivers/spi/spi-fsl-lib.c index e947f2d1b2f5..0b75f26158ab 100644 --- a/drivers/spi/spi-fsl-lib.c +++ b/drivers/spi/spi-fsl-lib.c @@ -122,7 +122,7 @@ const char *mpc8xxx_spi_strmode(unsigned int flags) int mpc8xxx_spi_probe(struct device *dev, struct resource *mem, unsigned int irq) { - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); struct spi_master *master; struct mpc8xxx_spi *mpc8xxx_spi; int ret = 0; diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c index 41e89c3e3edc..bbc94294891c 100644 --- a/drivers/spi/spi-fsl-spi.c +++ b/drivers/spi/spi-fsl-spi.c @@ -574,7 +574,7 @@ static void fsl_spi_grlib_cs_control(struct spi_device *spi, bool on) static void fsl_spi_grlib_probe(struct device *dev) { - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); struct spi_master *master = dev_get_drvdata(dev); struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(master); struct fsl_spi_reg *reg_base = mpc8xxx_spi->reg_base; @@ -600,7 +600,7 @@ static void fsl_spi_grlib_probe(struct device *dev) static struct spi_master * fsl_spi_probe(struct device *dev, struct resource *mem, unsigned int irq) { - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); struct spi_master *master; struct mpc8xxx_spi *mpc8xxx_spi; struct fsl_spi_reg *reg_base; @@ -700,7 +700,8 @@ err: static void fsl_spi_cs_control(struct spi_device *spi, bool on) { struct device *dev = spi->dev.parent->parent; - struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(dev->platform_data); + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); + struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(pdata); u16 cs = spi->chip_select; int gpio = pinfo->gpios[cs]; bool alow = pinfo->alow_flags[cs]; @@ -711,7 +712,7 @@ static void fsl_spi_cs_control(struct spi_device *spi, bool on) static int of_fsl_spi_get_chipselects(struct device *dev) { struct device_node *np = dev->of_node; - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(pdata); int ngpios; int i = 0; @@ -790,7 +791,7 @@ err_alloc_flags: static int of_fsl_spi_free_chipselects(struct device *dev) { - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(pdata); int i; @@ -889,7 +890,7 @@ static int plat_mpc8xxx_spi_probe(struct platform_device *pdev) int irq; struct spi_master *master; - if (!pdev->dev.platform_data) + if (!dev_get_platdata(&pdev->dev)) return -EINVAL; mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c index a54524cf42cc..68b69fec13a9 100644 --- a/drivers/spi/spi-gpio.c +++ b/drivers/spi/spi-gpio.c @@ -420,7 +420,7 @@ static int spi_gpio_probe(struct platform_device *pdev) if (status > 0) use_of = 1; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); #ifdef GENERIC_BITBANG if (!pdata || !pdata->num_chipselect) return -ENODEV; @@ -506,7 +506,7 @@ static int spi_gpio_remove(struct platform_device *pdev) int status; spi_gpio = platform_get_drvdata(pdev); - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); /* stop() unregisters child devices too */ status = spi_bitbang_stop(&spi_gpio->bitbang); diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 7db4f43ee4d8..15323d8bd9cf 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -619,6 +619,7 @@ static const struct of_device_id spi_imx_dt_ids[] = { { .compatible = "fsl,imx51-ecspi", .data = &imx51_ecspi_devtype_data, }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, spi_imx_dt_ids); static void spi_imx_chipselect(struct spi_device *spi, int is_active) { @@ -796,10 +797,11 @@ static int spi_imx_probe(struct platform_device *pdev) if (!gpio_is_valid(cs_gpio)) continue; - ret = gpio_request(spi_imx->chipselect[i], DRIVER_NAME); + ret = devm_gpio_request(&pdev->dev, spi_imx->chipselect[i], + DRIVER_NAME); if (ret) { dev_err(&pdev->dev, "can't get cs gpios\n"); - goto out_gpio_free; + goto out_master_put; } } @@ -816,50 +818,44 @@ static int spi_imx_probe(struct platform_device *pdev) (struct spi_imx_devtype_data *) pdev->id_entry->driver_data; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "can't get platform resource\n"); - ret = -ENOMEM; - goto out_gpio_free; - } - - if (!request_mem_region(res->start, resource_size(res), pdev->name)) { - dev_err(&pdev->dev, "request_mem_region failed\n"); - ret = -EBUSY; - goto out_gpio_free; - } - - spi_imx->base = ioremap(res->start, resource_size(res)); - if (!spi_imx->base) { - ret = -EINVAL; - goto out_release_mem; + spi_imx->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(spi_imx->base)) { + ret = PTR_ERR(spi_imx->base); + goto out_master_put; } spi_imx->irq = platform_get_irq(pdev, 0); if (spi_imx->irq < 0) { ret = -EINVAL; - goto out_iounmap; + goto out_master_put; } - ret = request_irq(spi_imx->irq, spi_imx_isr, 0, DRIVER_NAME, spi_imx); + ret = devm_request_irq(&pdev->dev, spi_imx->irq, spi_imx_isr, 0, + DRIVER_NAME, spi_imx); if (ret) { dev_err(&pdev->dev, "can't get irq%d: %d\n", spi_imx->irq, ret); - goto out_iounmap; + goto out_master_put; } spi_imx->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); if (IS_ERR(spi_imx->clk_ipg)) { ret = PTR_ERR(spi_imx->clk_ipg); - goto out_free_irq; + goto out_master_put; } spi_imx->clk_per = devm_clk_get(&pdev->dev, "per"); if (IS_ERR(spi_imx->clk_per)) { ret = PTR_ERR(spi_imx->clk_per); - goto out_free_irq; + goto out_master_put; } - clk_prepare_enable(spi_imx->clk_per); - clk_prepare_enable(spi_imx->clk_ipg); + ret = clk_prepare_enable(spi_imx->clk_per); + if (ret) + goto out_master_put; + + ret = clk_prepare_enable(spi_imx->clk_ipg); + if (ret) + goto out_put_per; spi_imx->spi_clk = clk_get_rate(spi_imx->clk_per); @@ -879,47 +875,27 @@ static int spi_imx_probe(struct platform_device *pdev) return ret; out_clk_put: - clk_disable_unprepare(spi_imx->clk_per); clk_disable_unprepare(spi_imx->clk_ipg); -out_free_irq: - free_irq(spi_imx->irq, spi_imx); -out_iounmap: - iounmap(spi_imx->base); -out_release_mem: - release_mem_region(res->start, resource_size(res)); -out_gpio_free: - while (--i >= 0) { - if (gpio_is_valid(spi_imx->chipselect[i])) - gpio_free(spi_imx->chipselect[i]); - } +out_put_per: + clk_disable_unprepare(spi_imx->clk_per); +out_master_put: spi_master_put(master); - kfree(master); + return ret; } static int spi_imx_remove(struct platform_device *pdev) { struct spi_master *master = platform_get_drvdata(pdev); - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); struct spi_imx_data *spi_imx = spi_master_get_devdata(master); - int i; spi_bitbang_stop(&spi_imx->bitbang); writel(0, spi_imx->base + MXC_CSPICTRL); - clk_disable_unprepare(spi_imx->clk_per); clk_disable_unprepare(spi_imx->clk_ipg); - free_irq(spi_imx->irq, spi_imx); - iounmap(spi_imx->base); - - for (i = 0; i < master->num_chipselect; i++) - if (gpio_is_valid(spi_imx->chipselect[i])) - gpio_free(spi_imx->chipselect[i]); - + clk_disable_unprepare(spi_imx->clk_per); spi_master_put(master); - release_mem_region(res->start, resource_size(res)); - return 0; } diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index 29fce6af5145..dbc5e999a1f5 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -38,7 +38,8 @@ struct mpc512x_psc_spi { struct mpc512x_psc_fifo __iomem *fifo; unsigned int irq; u8 bits_per_word; - u32 mclk; + struct clk *clk_mclk; + u32 mclk_rate; struct completion txisrdone; }; @@ -72,6 +73,7 @@ static void mpc512x_psc_spi_activate_cs(struct spi_device *spi) struct mpc52xx_psc __iomem *psc = mps->psc; u32 sicr; u32 ccr; + int speed; u16 bclkdiv; sicr = in_be32(&psc->sicr); @@ -95,10 +97,10 @@ static void mpc512x_psc_spi_activate_cs(struct spi_device *spi) ccr = in_be32(&psc->ccr); ccr &= 0xFF000000; - if (cs->speed_hz) - bclkdiv = (mps->mclk / cs->speed_hz) - 1; - else - bclkdiv = (mps->mclk / 1000000) - 1; /* default 1MHz */ + speed = cs->speed_hz; + if (!speed) + speed = 1000000; /* default 1MHz */ + bclkdiv = (mps->mclk_rate / speed) - 1; ccr |= (((bclkdiv & 0xff) << 16) | (((bclkdiv >> 8) & 0xff) << 8)); out_be32(&psc->ccr, ccr); @@ -386,19 +388,11 @@ static int mpc512x_psc_spi_port_config(struct spi_master *master, { struct mpc52xx_psc __iomem *psc = mps->psc; struct mpc512x_psc_fifo __iomem *fifo = mps->fifo; - struct clk *spiclk; - int ret = 0; - char name[32]; u32 sicr; u32 ccr; + int speed; u16 bclkdiv; - sprintf(name, "psc%d_mclk", master->bus_num); - spiclk = clk_get(&master->dev, name); - clk_enable(spiclk); - mps->mclk = clk_get_rate(spiclk); - clk_put(spiclk); - /* Reset the PSC into a known state */ out_8(&psc->command, MPC52xx_PSC_RST_RX); out_8(&psc->command, MPC52xx_PSC_RST_TX); @@ -425,7 +419,8 @@ static int mpc512x_psc_spi_port_config(struct spi_master *master, ccr = in_be32(&psc->ccr); ccr &= 0xFF000000; - bclkdiv = (mps->mclk / 1000000) - 1; /* default 1MHz */ + speed = 1000000; /* default 1MHz */ + bclkdiv = (mps->mclk_rate / speed) - 1; ccr |= (((bclkdiv & 0xff) << 16) | (((bclkdiv >> 8) & 0xff) << 8)); out_be32(&psc->ccr, ccr); @@ -445,7 +440,7 @@ static int mpc512x_psc_spi_port_config(struct spi_master *master, mps->bits_per_word = 8; - return ret; + return 0; } static irqreturn_t mpc512x_psc_spi_isr(int irq, void *dev_id) @@ -474,11 +469,14 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr, u32 size, unsigned int irq, s16 bus_num) { - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); struct mpc512x_psc_spi *mps; struct spi_master *master; int ret; void *tempp; + int psc_num; + char clk_name[16]; + struct clk *clk; master = spi_alloc_master(dev, sizeof *mps); if (master == NULL) @@ -521,16 +519,29 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr, goto free_master; init_completion(&mps->txisrdone); + psc_num = master->bus_num; + snprintf(clk_name, sizeof(clk_name), "psc%d_mclk", psc_num); + clk = devm_clk_get(dev, clk_name); + if (IS_ERR(clk)) + goto free_irq; + ret = clk_prepare_enable(clk); + if (ret) + goto free_irq; + mps->clk_mclk = clk; + mps->mclk_rate = clk_get_rate(clk); + ret = mpc512x_psc_spi_port_config(master, mps); if (ret < 0) - goto free_irq; + goto free_clock; ret = spi_register_master(master); if (ret < 0) - goto free_irq; + goto free_clock; return ret; +free_clock: + clk_disable_unprepare(mps->clk_mclk); free_irq: free_irq(mps->irq, mps); free_master: @@ -547,6 +558,7 @@ static int mpc512x_psc_spi_do_remove(struct device *dev) struct mpc512x_psc_spi *mps = spi_master_get_devdata(master); spi_unregister_master(master); + clk_disable_unprepare(mps->clk_mclk); free_irq(mps->irq, mps); if (mps->psc) iounmap(mps->psc); diff --git a/drivers/spi/spi-mpc52xx-psc.c b/drivers/spi/spi-mpc52xx-psc.c index fed0571d4dec..6e925dc34396 100644 --- a/drivers/spi/spi-mpc52xx-psc.c +++ b/drivers/spi/spi-mpc52xx-psc.c @@ -366,7 +366,7 @@ static irqreturn_t mpc52xx_psc_spi_isr(int irq, void *dev_id) static int mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr, u32 size, unsigned int irq, s16 bus_num) { - struct fsl_spi_platform_data *pdata = dev->platform_data; + struct fsl_spi_platform_data *pdata = dev_get_platdata(dev); struct mpc52xx_psc_spi *mps; struct spi_master *master; int ret; diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index 424d38e59421..de7b1141b90f 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -67,13 +67,8 @@ static int mxs_spi_setup_transfer(struct spi_device *dev, { struct mxs_spi *spi = spi_master_get_devdata(dev->master); struct mxs_ssp *ssp = &spi->ssp; - uint8_t bits_per_word; uint32_t hz = 0; - bits_per_word = dev->bits_per_word; - if (t && t->bits_per_word) - bits_per_word = t->bits_per_word; - hz = dev->max_speed_hz; if (t && t->speed_hz) hz = min(hz, t->speed_hz); @@ -513,7 +508,7 @@ static int mxs_spi_probe(struct platform_device *pdev) iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq_err = platform_get_irq(pdev, 0); - if (!iores || irq_err < 0) + if (irq_err < 0) return -EINVAL; base = devm_ioremap_resource(&pdev->dev, iores); @@ -563,25 +558,31 @@ static int mxs_spi_probe(struct platform_device *pdev) goto out_master_free; } - clk_prepare_enable(ssp->clk); + ret = clk_prepare_enable(ssp->clk); + if (ret) + goto out_dma_release; + clk_set_rate(ssp->clk, clk_freq); ssp->clk_rate = clk_get_rate(ssp->clk) / 1000; - stmp_reset_block(ssp->base); + ret = stmp_reset_block(ssp->base); + if (ret) + goto out_disable_clk; platform_set_drvdata(pdev, master); ret = spi_register_master(master); if (ret) { dev_err(&pdev->dev, "Cannot register SPI master, %d\n", ret); - goto out_free_dma; + goto out_disable_clk; } return 0; -out_free_dma: - dma_release_channel(ssp->dmach); +out_disable_clk: clk_disable_unprepare(ssp->clk); +out_dma_release: + dma_release_channel(ssp->dmach); out_master_free: spi_master_put(master); return ret; @@ -598,11 +599,8 @@ static int mxs_spi_remove(struct platform_device *pdev) ssp = &spi->ssp; spi_unregister_master(master); - - dma_release_channel(ssp->dmach); - clk_disable_unprepare(ssp->clk); - + dma_release_channel(ssp->dmach); spi_master_put(master); return 0; diff --git a/drivers/spi/spi-nuc900.c b/drivers/spi/spi-nuc900.c index 150d85453c27..47a68b43bcd5 100644 --- a/drivers/spi/spi-nuc900.c +++ b/drivers/spi/spi-nuc900.c @@ -174,17 +174,6 @@ static void nuc900_spi_gobusy(struct nuc900_spi *hw) spin_unlock_irqrestore(&hw->lock, flags); } -static int nuc900_spi_setupxfer(struct spi_device *spi, - struct spi_transfer *t) -{ - return 0; -} - -static int nuc900_spi_setup(struct spi_device *spi) -{ - return 0; -} - static inline unsigned int hw_txbyte(struct nuc900_spi *hw, int count) { return hw->tx ? hw->tx[count] : 0; @@ -361,7 +350,7 @@ static int nuc900_spi_probe(struct platform_device *pdev) hw = spi_master_get_devdata(master); hw->master = spi_master_get(master); - hw->pdata = pdev->dev.platform_data; + hw->pdata = dev_get_platdata(&pdev->dev); hw->dev = &pdev->dev; if (hw->pdata == NULL) { @@ -373,14 +362,12 @@ static int nuc900_spi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, hw); init_completion(&hw->done); - master->mode_bits = SPI_MODE_0; + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; master->num_chipselect = hw->pdata->num_cs; master->bus_num = hw->pdata->bus_num; hw->bitbang.master = hw->master; - hw->bitbang.setup_transfer = nuc900_spi_setupxfer; hw->bitbang.chipselect = nuc900_spi_chipsel; hw->bitbang.txrx_bufs = nuc900_spi_txrx; - hw->bitbang.master->setup = nuc900_spi_setup; hw->res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (hw->res == NULL) { diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c index 58deb79d046b..333cb1badcd7 100644 --- a/drivers/spi/spi-oc-tiny.c +++ b/drivers/spi/spi-oc-tiny.c @@ -285,7 +285,7 @@ static int tiny_spi_of_probe(struct platform_device *pdev) static int tiny_spi_probe(struct platform_device *pdev) { - struct tiny_spi_platform_data *platp = pdev->dev.platform_data; + struct tiny_spi_platform_data *platp = dev_get_platdata(&pdev->dev); struct tiny_spi *hw; struct spi_master *master; struct resource *res; @@ -315,15 +315,11 @@ static int tiny_spi_probe(struct platform_device *pdev) /* find and map our resources */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - goto exit_busy; - if (!devm_request_mem_region(&pdev->dev, res->start, resource_size(res), - pdev->name)) - goto exit_busy; - hw->base = devm_ioremap_nocache(&pdev->dev, res->start, - resource_size(res)); - if (!hw->base) - goto exit_busy; + hw->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hw->base)) { + err = PTR_ERR(hw->base); + goto exit; + } /* irq is optional */ hw->irq = platform_get_irq(pdev, 0); if (hw->irq >= 0) { @@ -337,8 +333,10 @@ static int tiny_spi_probe(struct platform_device *pdev) if (platp) { hw->gpio_cs_count = platp->gpio_cs_count; hw->gpio_cs = platp->gpio_cs; - if (platp->gpio_cs_count && !platp->gpio_cs) - goto exit_busy; + if (platp->gpio_cs_count && !platp->gpio_cs) { + err = -EBUSY; + goto exit; + } hw->freq = platp->freq; hw->baudwidth = platp->baudwidth; } else { @@ -365,8 +363,6 @@ static int tiny_spi_probe(struct platform_device *pdev) exit_gpio: while (i-- > 0) gpio_free(hw->gpio_cs[i]); -exit_busy: - err = -EBUSY; exit: spi_master_put(master); return err; diff --git a/drivers/spi/spi-octeon.c b/drivers/spi/spi-octeon.c index 24daf964a409..5f28ddbe4f7e 100644 --- a/drivers/spi/spi-octeon.c +++ b/drivers/spi/spi-octeon.c @@ -28,7 +28,6 @@ #define OCTEON_SPI_MAX_CLOCK_HZ 16000000 struct octeon_spi { - struct spi_master *my_master; u64 register_base; u64 last_cfg; u64 cs_enax; @@ -64,7 +63,6 @@ static int octeon_spi_do_transfer(struct octeon_spi *p, unsigned int speed_hz; int mode; bool cpha, cpol; - int bits_per_word; const u8 *tx_buf; u8 *rx_buf; int len; @@ -76,12 +74,9 @@ static int octeon_spi_do_transfer(struct octeon_spi *p, mode = msg_setup->mode; cpha = mode & SPI_CPHA; cpol = mode & SPI_CPOL; - bits_per_word = msg_setup->bits_per_word; if (xfer->speed_hz) speed_hz = xfer->speed_hz; - if (xfer->bits_per_word) - bits_per_word = xfer->bits_per_word; if (speed_hz > OCTEON_SPI_MAX_CLOCK_HZ) speed_hz = OCTEON_SPI_MAX_CLOCK_HZ; @@ -166,19 +161,6 @@ static int octeon_spi_do_transfer(struct octeon_spi *p, return xfer->len; } -static int octeon_spi_validate_bpw(struct spi_device *spi, u32 speed) -{ - switch (speed) { - case 8: - break; - default: - dev_err(&spi->dev, "Error: %d bits per word not supported\n", - speed); - return -EINVAL; - } - return 0; -} - static int octeon_spi_transfer_one_message(struct spi_master *master, struct spi_message *msg) { @@ -197,15 +179,6 @@ static int octeon_spi_transfer_one_message(struct spi_master *master, } list_for_each_entry(xfer, &msg->transfers, transfer_list) { - if (xfer->bits_per_word) { - status = octeon_spi_validate_bpw(msg->spi, - xfer->bits_per_word); - if (status) - goto err; - } - } - - list_for_each_entry(xfer, &msg->transfers, transfer_list) { bool last_xfer = &xfer->transfer_list == msg->transfers.prev; int r = octeon_spi_do_transfer(p, msg, xfer, last_xfer); if (r < 0) { @@ -236,14 +209,9 @@ static struct octeon_spi_setup *octeon_spi_new_setup(struct spi_device *spi) static int octeon_spi_setup(struct spi_device *spi) { - int r; struct octeon_spi_setup *new_setup; struct octeon_spi_setup *old_setup = spi_get_ctldata(spi); - r = octeon_spi_validate_bpw(spi, spi->bits_per_word); - if (r) - return r; - new_setup = octeon_spi_new_setup(spi); if (!new_setup) return -ENOMEM; @@ -261,14 +229,8 @@ static void octeon_spi_cleanup(struct spi_device *spi) kfree(old_setup); } -static int octeon_spi_nop_transfer_hardware(struct spi_master *master) -{ - return 0; -} - static int octeon_spi_probe(struct platform_device *pdev) { - struct resource *res_mem; struct spi_master *master; struct octeon_spi *p; @@ -278,8 +240,7 @@ static int octeon_spi_probe(struct platform_device *pdev) if (!master) return -ENOMEM; p = spi_master_get_devdata(master); - platform_set_drvdata(pdev, p); - p->my_master = master; + platform_set_drvdata(pdev, master); res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -307,9 +268,8 @@ static int octeon_spi_probe(struct platform_device *pdev) master->setup = octeon_spi_setup; master->cleanup = octeon_spi_cleanup; - master->prepare_transfer_hardware = octeon_spi_nop_transfer_hardware; master->transfer_one_message = octeon_spi_transfer_one_message; - master->unprepare_transfer_hardware = octeon_spi_nop_transfer_hardware; + master->bits_per_word_mask = SPI_BPW_MASK(8); master->dev.of_node = pdev->dev.of_node; err = spi_register_master(master); @@ -328,10 +288,11 @@ fail: static int octeon_spi_remove(struct platform_device *pdev) { - struct octeon_spi *p = platform_get_drvdata(pdev); + struct spi_master *master = platform_get_drvdata(pdev); + struct octeon_spi *p = spi_master_get_devdata(master); u64 register_base = p->register_base; - spi_unregister_master(p->my_master); + spi_unregister_master(master); /* Clear the CSENA* and put everything in a known state. */ cvmx_write_csr(register_base + OCTEON_SPI_CFG, 0); diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c index ee25670f8cfd..69ecf05757dd 100644 --- a/drivers/spi/spi-omap-100k.c +++ b/drivers/spi/spi-omap-100k.c @@ -83,11 +83,6 @@ #define SPI_SHUTDOWN 1 struct omap1_spi100k { - struct work_struct work; - - /* lock protects queue and registers */ - spinlock_t lock; - struct list_head msg_queue; struct spi_master *master; struct clk *ick; struct clk *fck; @@ -104,8 +99,6 @@ struct omap1_spi100k_cs { int word_len; }; -static struct workqueue_struct *omap1_spi100k_wq; - #define MOD_REG_BIT(val, mask, set) do { \ if (set) \ val |= mask; \ @@ -310,170 +303,102 @@ static int omap1_spi100k_setup(struct spi_device *spi) spi100k_open(spi->master); - clk_enable(spi100k->ick); - clk_enable(spi100k->fck); + clk_prepare_enable(spi100k->ick); + clk_prepare_enable(spi100k->fck); ret = omap1_spi100k_setup_transfer(spi, NULL); - clk_disable(spi100k->ick); - clk_disable(spi100k->fck); + clk_disable_unprepare(spi100k->ick); + clk_disable_unprepare(spi100k->fck); return ret; } -static void omap1_spi100k_work(struct work_struct *work) +static int omap1_spi100k_prepare_hardware(struct spi_master *master) { - struct omap1_spi100k *spi100k; - int status = 0; + struct omap1_spi100k *spi100k = spi_master_get_devdata(master); - spi100k = container_of(work, struct omap1_spi100k, work); - spin_lock_irq(&spi100k->lock); + clk_prepare_enable(spi100k->ick); + clk_prepare_enable(spi100k->fck); - clk_enable(spi100k->ick); - clk_enable(spi100k->fck); + return 0; +} - /* We only enable one channel at a time -- the one whose message is - * at the head of the queue -- although this controller would gladly - * arbitrate among multiple channels. This corresponds to "single - * channel" master mode. As a side effect, we need to manage the - * chipselect with the FORCE bit ... CS != channel enable. - */ - while (!list_empty(&spi100k->msg_queue)) { - struct spi_message *m; - struct spi_device *spi; - struct spi_transfer *t = NULL; - int cs_active = 0; - struct omap1_spi100k_cs *cs; - int par_override = 0; - - m = container_of(spi100k->msg_queue.next, struct spi_message, - queue); - - list_del_init(&m->queue); - spin_unlock_irq(&spi100k->lock); - - spi = m->spi; - cs = spi->controller_state; - - list_for_each_entry(t, &m->transfers, transfer_list) { - if (t->tx_buf == NULL && t->rx_buf == NULL && t->len) { - status = -EINVAL; +static int omap1_spi100k_transfer_one_message(struct spi_master *master, + struct spi_message *m) +{ + struct omap1_spi100k *spi100k = spi_master_get_devdata(master); + struct spi_device *spi = m->spi; + struct spi_transfer *t = NULL; + int cs_active = 0; + int par_override = 0; + int status = 0; + + list_for_each_entry(t, &m->transfers, transfer_list) { + if (t->tx_buf == NULL && t->rx_buf == NULL && t->len) { + status = -EINVAL; + break; + } + if (par_override || t->speed_hz || t->bits_per_word) { + par_override = 1; + status = omap1_spi100k_setup_transfer(spi, t); + if (status < 0) break; - } - if (par_override || t->speed_hz || t->bits_per_word) { - par_override = 1; - status = omap1_spi100k_setup_transfer(spi, t); - if (status < 0) - break; - if (!t->speed_hz && !t->bits_per_word) - par_override = 0; - } + if (!t->speed_hz && !t->bits_per_word) + par_override = 0; + } - if (!cs_active) { - omap1_spi100k_force_cs(spi100k, 1); - cs_active = 1; - } + if (!cs_active) { + omap1_spi100k_force_cs(spi100k, 1); + cs_active = 1; + } - if (t->len) { - unsigned count; + if (t->len) { + unsigned count; - count = omap1_spi100k_txrx_pio(spi, t); - m->actual_length += count; + count = omap1_spi100k_txrx_pio(spi, t); + m->actual_length += count; - if (count != t->len) { - status = -EIO; - break; - } + if (count != t->len) { + status = -EIO; + break; } + } - if (t->delay_usecs) - udelay(t->delay_usecs); + if (t->delay_usecs) + udelay(t->delay_usecs); - /* ignore the "leave it on after last xfer" hint */ + /* ignore the "leave it on after last xfer" hint */ - if (t->cs_change) { - omap1_spi100k_force_cs(spi100k, 0); - cs_active = 0; - } - } - - /* Restore defaults if they were overriden */ - if (par_override) { - par_override = 0; - status = omap1_spi100k_setup_transfer(spi, NULL); + if (t->cs_change) { + omap1_spi100k_force_cs(spi100k, 0); + cs_active = 0; } + } - if (cs_active) - omap1_spi100k_force_cs(spi100k, 0); + /* Restore defaults if they were overriden */ + if (par_override) { + par_override = 0; + status = omap1_spi100k_setup_transfer(spi, NULL); + } - m->status = status; - m->complete(m->context); + if (cs_active) + omap1_spi100k_force_cs(spi100k, 0); - spin_lock_irq(&spi100k->lock); - } + m->status = status; - clk_disable(spi100k->ick); - clk_disable(spi100k->fck); - spin_unlock_irq(&spi100k->lock); + spi_finalize_current_message(master); - if (status < 0) - printk(KERN_WARNING "spi transfer failed with %d\n", status); + return status; } -static int omap1_spi100k_transfer(struct spi_device *spi, struct spi_message *m) +static int omap1_spi100k_unprepare_hardware(struct spi_master *master) { - struct omap1_spi100k *spi100k; - unsigned long flags; - struct spi_transfer *t; - - m->actual_length = 0; - m->status = -EINPROGRESS; - - spi100k = spi_master_get_devdata(spi->master); - - /* Don't accept new work if we're shutting down */ - if (spi100k->state == SPI_SHUTDOWN) - return -ESHUTDOWN; - - /* reject invalid messages and transfers */ - if (list_empty(&m->transfers) || !m->complete) - return -EINVAL; - - list_for_each_entry(t, &m->transfers, transfer_list) { - const void *tx_buf = t->tx_buf; - void *rx_buf = t->rx_buf; - unsigned len = t->len; - - if (t->speed_hz > OMAP1_SPI100K_MAX_FREQ - || (len && !(rx_buf || tx_buf))) { - dev_dbg(&spi->dev, "transfer: %d Hz, %d %s%s, %d bpw\n", - t->speed_hz, - len, - tx_buf ? "tx" : "", - rx_buf ? "rx" : "", - t->bits_per_word); - return -EINVAL; - } - - if (t->speed_hz && t->speed_hz < OMAP1_SPI100K_MAX_FREQ/(1<<16)) { - dev_dbg(&spi->dev, "%d Hz max exceeds %d\n", - t->speed_hz, - OMAP1_SPI100K_MAX_FREQ/(1<<16)); - return -EINVAL; - } - - } - - spin_lock_irqsave(&spi100k->lock, flags); - list_add_tail(&m->queue, &spi100k->msg_queue); - queue_work(omap1_spi100k_wq, &spi100k->work); - spin_unlock_irqrestore(&spi100k->lock, flags); + struct omap1_spi100k *spi100k = spi_master_get_devdata(master); - return 0; -} + clk_disable_unprepare(spi100k->ick); + clk_disable_unprepare(spi100k->fck); -static int omap1_spi100k_reset(struct omap1_spi100k *spi100k) -{ return 0; } @@ -496,11 +421,15 @@ static int omap1_spi100k_probe(struct platform_device *pdev) master->bus_num = pdev->id; master->setup = omap1_spi100k_setup; - master->transfer = omap1_spi100k_transfer; + master->transfer_one_message = omap1_spi100k_transfer_one_message; + master->prepare_transfer_hardware = omap1_spi100k_prepare_hardware; + master->unprepare_transfer_hardware = omap1_spi100k_unprepare_hardware; master->cleanup = NULL; master->num_chipselect = 2; master->mode_bits = MODEBITS; master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32); + master->min_speed_hz = OMAP1_SPI100K_MAX_FREQ/(1<<16); + master->max_speed_hz = OMAP1_SPI100K_MAX_FREQ; platform_set_drvdata(pdev, master); @@ -512,42 +441,31 @@ static int omap1_spi100k_probe(struct platform_device *pdev) * You should allocate this with ioremap() before initializing * the SPI. */ - spi100k->base = (void __iomem *) pdev->dev.platform_data; - - INIT_WORK(&spi100k->work, omap1_spi100k_work); + spi100k->base = (void __iomem *)dev_get_platdata(&pdev->dev); - spin_lock_init(&spi100k->lock); - INIT_LIST_HEAD(&spi100k->msg_queue); - spi100k->ick = clk_get(&pdev->dev, "ick"); + spi100k->ick = devm_clk_get(&pdev->dev, "ick"); if (IS_ERR(spi100k->ick)) { dev_dbg(&pdev->dev, "can't get spi100k_ick\n"); status = PTR_ERR(spi100k->ick); - goto err1; + goto err; } - spi100k->fck = clk_get(&pdev->dev, "fck"); + spi100k->fck = devm_clk_get(&pdev->dev, "fck"); if (IS_ERR(spi100k->fck)) { dev_dbg(&pdev->dev, "can't get spi100k_fck\n"); status = PTR_ERR(spi100k->fck); - goto err2; + goto err; } - if (omap1_spi100k_reset(spi100k) < 0) - goto err3; - status = spi_register_master(master); if (status < 0) - goto err3; + goto err; spi100k->state = SPI_RUNNING; return status; -err3: - clk_put(spi100k->fck); -err2: - clk_put(spi100k->ick); -err1: +err: spi_master_put(master); return status; } @@ -557,33 +475,14 @@ static int omap1_spi100k_remove(struct platform_device *pdev) struct spi_master *master; struct omap1_spi100k *spi100k; struct resource *r; - unsigned limit = 500; - unsigned long flags; int status = 0; master = platform_get_drvdata(pdev); spi100k = spi_master_get_devdata(master); - spin_lock_irqsave(&spi100k->lock, flags); - - spi100k->state = SPI_SHUTDOWN; - while (!list_empty(&spi100k->msg_queue) && limit--) { - spin_unlock_irqrestore(&spi100k->lock, flags); - msleep(10); - spin_lock_irqsave(&spi100k->lock, flags); - } - - if (!list_empty(&spi100k->msg_queue)) - status = -EBUSY; - - spin_unlock_irqrestore(&spi100k->lock, flags); - if (status != 0) return status; - clk_put(spi100k->fck); - clk_put(spi100k->ick); - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); spi_unregister_master(master); @@ -596,30 +495,11 @@ static struct platform_driver omap1_spi100k_driver = { .name = "omap1_spi100k", .owner = THIS_MODULE, }, + .probe = omap1_spi100k_probe, .remove = omap1_spi100k_remove, }; - -static int __init omap1_spi100k_init(void) -{ - omap1_spi100k_wq = create_singlethread_workqueue( - omap1_spi100k_driver.driver.name); - - if (omap1_spi100k_wq == NULL) - return -1; - - return platform_driver_probe(&omap1_spi100k_driver, omap1_spi100k_probe); -} - -static void __exit omap1_spi100k_exit(void) -{ - platform_driver_unregister(&omap1_spi100k_driver); - - destroy_workqueue(omap1_spi100k_wq); -} - -module_init(omap1_spi100k_init); -module_exit(omap1_spi100k_exit); +module_platform_driver(omap1_spi100k_driver); MODULE_DESCRIPTION("OMAP7xx SPI 100k controller driver"); MODULE_AUTHOR("Fabrice Crohas <fcrohas@gmail.com>"); diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 5994039758de..ed4af4708d9a 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -335,23 +335,6 @@ static void omap2_mcspi_restore_ctx(struct omap2_mcspi *mcspi) __raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0); } -static int omap2_prepare_transfer(struct spi_master *master) -{ - struct omap2_mcspi *mcspi = spi_master_get_devdata(master); - - pm_runtime_get_sync(mcspi->dev); - return 0; -} - -static int omap2_unprepare_transfer(struct spi_master *master) -{ - struct omap2_mcspi *mcspi = spi_master_get_devdata(master); - - pm_runtime_mark_last_busy(mcspi->dev); - pm_runtime_put_autosuspend(mcspi->dev); - return 0; -} - static int mcspi_wait_for_reg_bit(void __iomem *reg, unsigned long bit) { unsigned long timeout; @@ -1318,8 +1301,7 @@ static int omap2_mcspi_probe(struct platform_device *pdev) master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32); master->setup = omap2_mcspi_setup; - master->prepare_transfer_hardware = omap2_prepare_transfer; - master->unprepare_transfer_hardware = omap2_unprepare_transfer; + master->auto_runtime_pm = true; master->transfer_one_message = omap2_mcspi_transfer_one_message; master->cleanup = omap2_mcspi_cleanup; master->dev.of_node = node; @@ -1340,7 +1322,7 @@ static int omap2_mcspi_probe(struct platform_device *pdev) if (of_get_property(node, "ti,pindir-d0-out-d1-in", NULL)) mcspi->pin_dir = MCSPI_PINDIR_D0_OUT_D1_IN; } else { - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); master->num_chipselect = pdata->num_cs; if (pdev->id != -1) master->bus_num = pdev->id; diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c index 5d90bebaa0fa..1d1d321d90c4 100644 --- a/drivers/spi/spi-orion.c +++ b/drivers/spi/spi-orion.c @@ -19,6 +19,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/clk.h> +#include <linux/sizes.h> #include <asm/unaligned.h> #define DRIVER_NAME "orion_spi" @@ -446,30 +447,22 @@ static int orion_spi_probe(struct platform_device *pdev) spi->min_speed = DIV_ROUND_UP(tclk_hz, 30); r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (r == NULL) { - status = -ENODEV; + spi->base = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(spi->base)) { + status = PTR_ERR(spi->base); goto out_rel_clk; } - if (!request_mem_region(r->start, resource_size(r), - dev_name(&pdev->dev))) { - status = -EBUSY; - goto out_rel_clk; - } - spi->base = ioremap(r->start, SZ_1K); - if (orion_spi_reset(spi) < 0) - goto out_rel_mem; + goto out_rel_clk; master->dev.of_node = pdev->dev.of_node; status = spi_register_master(master); if (status < 0) - goto out_rel_mem; + goto out_rel_clk; return status; -out_rel_mem: - release_mem_region(r->start, resource_size(r)); out_rel_clk: clk_disable_unprepare(spi->clk); clk_put(spi->clk); @@ -482,7 +475,6 @@ out: static int orion_spi_remove(struct platform_device *pdev) { struct spi_master *master; - struct resource *r; struct orion_spi *spi; master = platform_get_drvdata(pdev); @@ -491,9 +483,6 @@ static int orion_spi_remove(struct platform_device *pdev) clk_disable_unprepare(spi->clk); clk_put(spi->clk); - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(r->start, resource_size(r)); - spi_unregister_master(master); return 0; diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index abef061fb84a..9c511a954d21 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -1555,18 +1555,6 @@ static int pl022_transfer_one_message(struct spi_master *master, return 0; } -static int pl022_prepare_transfer_hardware(struct spi_master *master) -{ - struct pl022 *pl022 = spi_master_get_devdata(master); - - /* - * Just make sure we have all we need to run the transfer by syncing - * with the runtime PM framework. - */ - pm_runtime_get_sync(&pl022->adev->dev); - return 0; -} - static int pl022_unprepare_transfer_hardware(struct spi_master *master) { struct pl022 *pl022 = spi_master_get_devdata(master); @@ -1575,13 +1563,6 @@ static int pl022_unprepare_transfer_hardware(struct spi_master *master) writew((readw(SSP_CR1(pl022->virtbase)) & (~SSP_CR1_MASK_SSE)), SSP_CR1(pl022->virtbase)); - if (pl022->master_info->autosuspend_delay > 0) { - pm_runtime_mark_last_busy(&pl022->adev->dev); - pm_runtime_put_autosuspend(&pl022->adev->dev); - } else { - pm_runtime_put(&pl022->adev->dev); - } - return 0; } @@ -2091,7 +2072,8 @@ pl022_platform_data_dt_get(struct device *dev) static int pl022_probe(struct amba_device *adev, const struct amba_id *id) { struct device *dev = &adev->dev; - struct pl022_ssp_controller *platform_info = adev->dev.platform_data; + struct pl022_ssp_controller *platform_info = + dev_get_platdata(&adev->dev); struct spi_master *master; struct pl022 *pl022 = NULL; /*Data for this driver */ struct device_node *np = adev->dev.of_node; @@ -2139,7 +2121,7 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id) master->num_chipselect = num_cs; master->cleanup = pl022_cleanup; master->setup = pl022_setup; - master->prepare_transfer_hardware = pl022_prepare_transfer_hardware; + master->auto_runtime_pm = true; master->transfer_one_message = pl022_transfer_one_message; master->unprepare_transfer_hardware = pl022_unprepare_transfer_hardware; master->rt = platform_info->rt; @@ -2193,8 +2175,8 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id) status = -ENOMEM; goto err_no_ioremap; } - printk(KERN_INFO "pl022: mapped registers from 0x%08x to %p\n", - adev->res.start, pl022->virtbase); + printk(KERN_INFO "pl022: mapped registers from %pa to %p\n", + &adev->res.start, pl022->virtbase); pl022->clk = devm_clk_get(&adev->dev, NULL); if (IS_ERR(pl022->clk)) { diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index f440dcee852b..2eb06ee0b326 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -69,6 +69,8 @@ MODULE_ALIAS("platform:pxa2xx-spi"); #define LPSS_TX_HITHRESH_DFLT 224 /* Offset from drv_data->lpss_base */ +#define GENERAL_REG 0x08 +#define GENERAL_REG_RXTO_HOLDOFF_DISABLE BIT(24) #define SSP_REG 0x0c #define SPI_CS_CONTROL 0x18 #define SPI_CS_CONTROL_SW_MODE BIT(0) @@ -142,8 +144,13 @@ detection_done: __lpss_ssp_write_priv(drv_data, SPI_CS_CONTROL, value); /* Enable multiblock DMA transfers */ - if (drv_data->master_info->enable_dma) + if (drv_data->master_info->enable_dma) { __lpss_ssp_write_priv(drv_data, SSP_REG, 1); + + value = __lpss_ssp_read_priv(drv_data, GENERAL_REG); + value |= GENERAL_REG_RXTO_HOLDOFF_DISABLE; + __lpss_ssp_write_priv(drv_data, GENERAL_REG, value); + } } static void lpss_ssp_cs_control(struct driver_data *drv_data, bool enable) @@ -804,14 +811,6 @@ static int pxa2xx_spi_transfer_one_message(struct spi_master *master, return 0; } -static int pxa2xx_spi_prepare_transfer(struct spi_master *master) -{ - struct driver_data *drv_data = spi_master_get_devdata(master); - - pm_runtime_get_sync(&drv_data->pdev->dev); - return 0; -} - static int pxa2xx_spi_unprepare_transfer(struct spi_master *master) { struct driver_data *drv_data = spi_master_get_devdata(master); @@ -820,8 +819,6 @@ static int pxa2xx_spi_unprepare_transfer(struct spi_master *master) write_SSCR0(read_SSCR0(drv_data->ioaddr) & ~SSCR0_SSE, drv_data->ioaddr); - pm_runtime_mark_last_busy(&drv_data->pdev->dev); - pm_runtime_put_autosuspend(&drv_data->pdev->dev); return 0; } @@ -1134,8 +1131,8 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) master->cleanup = cleanup; master->setup = setup; master->transfer_one_message = pxa2xx_spi_transfer_one_message; - master->prepare_transfer_hardware = pxa2xx_spi_prepare_transfer; master->unprepare_transfer_hardware = pxa2xx_spi_unprepare_transfer; + master->auto_runtime_pm = true; drv_data->ssp_type = ssp->type; drv_data->null_dma_buf = (u32 *)PTR_ALIGN(&drv_data[1], DMA_ALIGNMENT); diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index b44a6ac3cec9..8719206a03a0 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -564,8 +564,12 @@ static void rspi_work(struct work_struct *work) unsigned long flags; int ret; - spin_lock_irqsave(&rspi->lock, flags); - while (!list_empty(&rspi->queue)) { + while (1) { + spin_lock_irqsave(&rspi->lock, flags); + if (list_empty(&rspi->queue)) { + spin_unlock_irqrestore(&rspi->lock, flags); + break; + } mesg = list_entry(rspi->queue.next, struct spi_message, queue); list_del_init(&mesg->queue); spin_unlock_irqrestore(&rspi->lock, flags); @@ -595,8 +599,6 @@ static void rspi_work(struct work_struct *work) mesg->status = 0; mesg->complete(mesg->context); - - spin_lock_irqsave(&rspi->lock, flags); } return; @@ -664,12 +666,13 @@ static irqreturn_t rspi_irq(int irq, void *_sr) static int rspi_request_dma(struct rspi_data *rspi, struct platform_device *pdev) { - struct rspi_plat_data *rspi_pd = pdev->dev.platform_data; + struct rspi_plat_data *rspi_pd = dev_get_platdata(&pdev->dev); + struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); dma_cap_mask_t mask; struct dma_slave_config cfg; int ret; - if (!rspi_pd) + if (!res || !rspi_pd) return 0; /* The driver assumes no error. */ rspi->dma_width_16bit = rspi_pd->dma_width_16bit; @@ -683,6 +686,8 @@ static int rspi_request_dma(struct rspi_data *rspi, if (rspi->chan_rx) { cfg.slave_id = rspi_pd->dma_rx_id; cfg.direction = DMA_DEV_TO_MEM; + cfg.dst_addr = 0; + cfg.src_addr = res->start + RSPI_SPDR; ret = dmaengine_slave_config(rspi->chan_rx, &cfg); if (!ret) dev_info(&pdev->dev, "Use DMA when rx.\n"); @@ -698,6 +703,8 @@ static int rspi_request_dma(struct rspi_data *rspi, if (rspi->chan_tx) { cfg.slave_id = rspi_pd->dma_tx_id; cfg.direction = DMA_MEM_TO_DEV; + cfg.dst_addr = res->start + RSPI_SPDR; + cfg.src_addr = 0; ret = dmaengine_slave_config(rspi->chan_tx, &cfg); if (!ret) dev_info(&pdev->dev, "Use DMA when tx\n"); @@ -719,7 +726,7 @@ static void rspi_release_dma(struct rspi_data *rspi) static int rspi_remove(struct platform_device *pdev) { - struct rspi_data *rspi = platform_get_drvdata(pdev); + struct rspi_data *rspi = spi_master_get(platform_get_drvdata(pdev)); spi_unregister_master(rspi->master); rspi_release_dma(rspi); diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c index 68910b310152..ce318d95a6ee 100644 --- a/drivers/spi/spi-s3c24xx.c +++ b/drivers/spi/spi-s3c24xx.c @@ -525,7 +525,7 @@ static int s3c24xx_spi_probe(struct platform_device *pdev) memset(hw, 0, sizeof(struct s3c24xx_spi)); hw->master = spi_master_get(master); - hw->pdata = pdata = pdev->dev.platform_data; + hw->pdata = pdata = dev_get_platdata(&pdev->dev); hw->dev = &pdev->dev; if (pdata == NULL) { @@ -690,7 +690,7 @@ static int s3c24xx_spi_remove(struct platform_device *dev) static int s3c24xx_spi_suspend(struct device *dev) { - struct s3c24xx_spi *hw = platform_get_drvdata(to_platform_device(dev)); + struct s3c24xx_spi *hw = dev_get_drvdata(dev); if (hw->pdata && hw->pdata->gpio_setup) hw->pdata->gpio_setup(hw->pdata, 0); @@ -701,7 +701,7 @@ static int s3c24xx_spi_suspend(struct device *dev) static int s3c24xx_spi_resume(struct device *dev) { - struct s3c24xx_spi *hw = platform_get_drvdata(to_platform_device(dev)); + struct s3c24xx_spi *hw = dev_get_drvdata(dev); s3c24xx_spi_initialsetup(hw); return 0; diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 63e2070c6c14..512b8893893b 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -172,7 +172,6 @@ struct s3c64xx_spi_port_config { * @master: Pointer to the SPI Protocol master. * @cntrlr_info: Platform specific data for the controller this driver manages. * @tgl_spi: Pointer to the last CS left untoggled by the cs_change hint. - * @queue: To log SPI xfer requests. * @lock: Controller specific lock. * @state: Set of FLAGS to indicate status. * @rx_dmach: Controller's DMA channel for Rx. @@ -193,7 +192,6 @@ struct s3c64xx_spi_driver_data { struct spi_master *master; struct s3c64xx_spi_info *cntrlr_info; struct spi_device *tgl_spi; - struct list_head queue; spinlock_t lock; unsigned long sfr_start; struct completion xfer_completion; @@ -338,8 +336,10 @@ static int acquire_dma(struct s3c64xx_spi_driver_data *sdd) req.cap = DMA_SLAVE; req.client = &s3c64xx_spi_dma_client; - sdd->rx_dma.ch = (void *)sdd->ops->request(sdd->rx_dma.dmach, &req, dev, "rx"); - sdd->tx_dma.ch = (void *)sdd->ops->request(sdd->tx_dma.dmach, &req, dev, "tx"); + sdd->rx_dma.ch = (struct dma_chan *)(unsigned long)sdd->ops->request( + sdd->rx_dma.dmach, &req, dev, "rx"); + sdd->tx_dma.ch = (struct dma_chan *)(unsigned long)sdd->ops->request( + sdd->tx_dma.dmach, &req, dev, "tx"); return 1; } @@ -356,8 +356,6 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi) while (!is_polling(sdd) && !acquire_dma(sdd)) usleep_range(10000, 11000); - pm_runtime_get_sync(&sdd->pdev->dev); - return 0; } @@ -372,7 +370,6 @@ static int s3c64xx_spi_unprepare_transfer(struct spi_master *spi) sdd->ops->release((enum dma_ch)sdd->tx_dma.ch, &s3c64xx_spi_dma_client); } - pm_runtime_put(&sdd->pdev->dev); return 0; } @@ -389,9 +386,10 @@ static void prepare_dma(struct s3c64xx_spi_dma_data *dma, { struct s3c64xx_spi_driver_data *sdd; struct dma_slave_config config; - struct scatterlist sg; struct dma_async_tx_descriptor *desc; + memset(&config, 0, sizeof(config)); + if (dma->direction == DMA_DEV_TO_MEM) { sdd = container_of((void *)dma, struct s3c64xx_spi_driver_data, rx_dma); @@ -410,14 +408,8 @@ static void prepare_dma(struct s3c64xx_spi_dma_data *dma, dmaengine_slave_config(dma->ch, &config); } - sg_init_table(&sg, 1); - sg_dma_len(&sg) = len; - sg_set_page(&sg, pfn_to_page(PFN_DOWN(buf)), - len, offset_in_page(buf)); - sg_dma_address(&sg) = buf; - - desc = dmaengine_prep_slave_sg(dma->ch, - &sg, 1, dma->direction, DMA_PREP_INTERRUPT); + desc = dmaengine_prep_slave_single(dma->ch, buf, len, + dma->direction, DMA_PREP_INTERRUPT); desc->callback = s3c64xx_spi_dmacb; desc->callback_param = dma; @@ -434,27 +426,26 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi) dma_cap_mask_t mask; int ret; - if (is_polling(sdd)) - return 0; - - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - - /* Acquire DMA channels */ - sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter, - (void*)sdd->rx_dma.dmach, dev, "rx"); - if (!sdd->rx_dma.ch) { - dev_err(dev, "Failed to get RX DMA channel\n"); - ret = -EBUSY; - goto out; - } + if (!is_polling(sdd)) { + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + + /* Acquire DMA channels */ + sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter, + (void *)sdd->rx_dma.dmach, dev, "rx"); + if (!sdd->rx_dma.ch) { + dev_err(dev, "Failed to get RX DMA channel\n"); + ret = -EBUSY; + goto out; + } - sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter, - (void*)sdd->tx_dma.dmach, dev, "tx"); - if (!sdd->tx_dma.ch) { - dev_err(dev, "Failed to get TX DMA channel\n"); - ret = -EBUSY; - goto out_rx; + sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter, + (void *)sdd->tx_dma.dmach, dev, "tx"); + if (!sdd->tx_dma.ch) { + dev_err(dev, "Failed to get TX DMA channel\n"); + ret = -EBUSY; + goto out_rx; + } } ret = pm_runtime_get_sync(&sdd->pdev->dev); @@ -1056,8 +1047,6 @@ static int s3c64xx_spi_setup(struct spi_device *spi) struct s3c64xx_spi_csinfo *cs = spi->controller_data; struct s3c64xx_spi_driver_data *sdd; struct s3c64xx_spi_info *sci; - struct spi_message *msg; - unsigned long flags; int err; sdd = spi_master_get_devdata(spi->master); @@ -1071,37 +1060,23 @@ static int s3c64xx_spi_setup(struct spi_device *spi) return -ENODEV; } - /* Request gpio only if cs line is asserted by gpio pins */ - if (sdd->cs_gpio) { - err = gpio_request_one(cs->line, GPIOF_OUT_INIT_HIGH, - dev_name(&spi->dev)); - if (err) { - dev_err(&spi->dev, - "Failed to get /CS gpio [%d]: %d\n", - cs->line, err); - goto err_gpio_req; + if (!spi_get_ctldata(spi)) { + /* Request gpio only if cs line is asserted by gpio pins */ + if (sdd->cs_gpio) { + err = gpio_request_one(cs->line, GPIOF_OUT_INIT_HIGH, + dev_name(&spi->dev)); + if (err) { + dev_err(&spi->dev, + "Failed to get /CS gpio [%d]: %d\n", + cs->line, err); + goto err_gpio_req; + } } - } - if (!spi_get_ctldata(spi)) spi_set_ctldata(spi, cs); - - sci = sdd->cntrlr_info; - - spin_lock_irqsave(&sdd->lock, flags); - - list_for_each_entry(msg, &sdd->queue, queue) { - /* Is some mssg is already queued for this device */ - if (msg->spi == spi) { - dev_err(&spi->dev, - "setup: attempt while mssg in queue!\n"); - spin_unlock_irqrestore(&sdd->lock, flags); - err = -EBUSY; - goto err_msgq; - } } - spin_unlock_irqrestore(&sdd->lock, flags); + sci = sdd->cntrlr_info; pm_runtime_get_sync(&sdd->pdev->dev); @@ -1149,7 +1124,6 @@ setup_exit: /* setup() returns with device de-selected */ disable_cs(sdd, spi); -err_msgq: gpio_free(cs->line); spi_set_ctldata(spi, NULL); @@ -1275,7 +1249,7 @@ static struct s3c64xx_spi_info *s3c64xx_spi_parse_dt(struct device *dev) #else static struct s3c64xx_spi_info *s3c64xx_spi_parse_dt(struct device *dev) { - return dev->platform_data; + return dev_get_platdata(dev); } #endif @@ -1300,7 +1274,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) struct resource *mem_res; struct resource *res; struct s3c64xx_spi_driver_data *sdd; - struct s3c64xx_spi_info *sci = pdev->dev.platform_data; + struct s3c64xx_spi_info *sci = dev_get_platdata(&pdev->dev); struct spi_master *master; int ret, irq; char clk_name[16]; @@ -1364,16 +1338,14 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) if (!sdd->pdev->dev.of_node) { res = platform_get_resource(pdev, IORESOURCE_DMA, 0); if (!res) { - dev_warn(&pdev->dev, "Unable to get SPI tx dma " - "resource. Switching to poll mode\n"); + dev_warn(&pdev->dev, "Unable to get SPI tx dma resource. Switching to poll mode\n"); sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL; } else sdd->tx_dma.dmach = res->start; res = platform_get_resource(pdev, IORESOURCE_DMA, 1); if (!res) { - dev_warn(&pdev->dev, "Unable to get SPI rx dma " - "resource. Switching to poll mode\n"); + dev_warn(&pdev->dev, "Unable to get SPI rx dma resource. Switching to poll mode\n"); sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL; } else sdd->rx_dma.dmach = res->start; @@ -1395,6 +1367,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) SPI_BPW_MASK(8); /* the spi->mode bits understood by this driver: */ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; + master->auto_runtime_pm = true; sdd->regs = devm_ioremap_resource(&pdev->dev, mem_res); if (IS_ERR(sdd->regs)) { @@ -1442,7 +1415,6 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) spin_lock_init(&sdd->lock); init_completion(&sdd->xfer_completion); - INIT_LIST_HEAD(&sdd->queue); ret = devm_request_irq(&pdev->dev, irq, s3c64xx_spi_irq, 0, "spi-s3c64xx", sdd); @@ -1464,8 +1436,8 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d with %d Slaves attached\n", sdd->port_id, master->num_chipselect); - dev_dbg(&pdev->dev, "\tIOmem=[0x%x-0x%x]\tDMA=[Rx-%d, Tx-%d]\n", - mem_res->end, mem_res->start, + dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tDMA=[Rx-%d, Tx-%d]\n", + mem_res, sdd->rx_dma.dmach, sdd->tx_dma.dmach); pm_runtime_enable(&pdev->dev); diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c index 716edf999538..0b68cb592fa4 100644 --- a/drivers/spi/spi-sh-hspi.c +++ b/drivers/spi/spi-sh-hspi.c @@ -99,21 +99,6 @@ static int hspi_status_check_timeout(struct hspi_priv *hspi, u32 mask, u32 val) /* * spi master function */ -static int hspi_prepare_transfer(struct spi_master *master) -{ - struct hspi_priv *hspi = spi_master_get_devdata(master); - - pm_runtime_get_sync(hspi->dev); - return 0; -} - -static int hspi_unprepare_transfer(struct spi_master *master) -{ - struct hspi_priv *hspi = spi_master_get_devdata(master); - - pm_runtime_put_sync(hspi->dev); - return 0; -} #define hspi_hw_cs_enable(hspi) hspi_hw_cs_ctrl(hspi, 0) #define hspi_hw_cs_disable(hspi) hspi_hw_cs_ctrl(hspi, 1) @@ -316,9 +301,8 @@ static int hspi_probe(struct platform_device *pdev) master->setup = hspi_setup; master->cleanup = hspi_cleanup; master->mode_bits = SPI_CPOL | SPI_CPHA; - master->prepare_transfer_hardware = hspi_prepare_transfer; + master->auto_runtime_pm = true; master->transfer_one_message = hspi_transfer_one_message; - master->unprepare_transfer_hardware = hspi_unprepare_transfer; ret = spi_register_master(master); if (ret < 0) { dev_err(&pdev->dev, "spi_register_master error.\n"); @@ -327,8 +311,6 @@ static int hspi_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); - dev_info(&pdev->dev, "probed\n"); - return 0; error1: diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index 2bc5a6b86300..2a95435a6a11 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -645,7 +645,7 @@ static int sh_msiof_spi_probe(struct platform_device *pdev) if (pdev->dev.of_node) p->info = sh_msiof_spi_parse_dt(&pdev->dev); else - p->info = pdev->dev.platform_data; + p->info = dev_get_platdata(&pdev->dev); if (!p->info) { dev_err(&pdev->dev, "failed to obtain device info\n"); @@ -745,18 +745,6 @@ static int sh_msiof_spi_remove(struct platform_device *pdev) return ret; } -static int sh_msiof_spi_runtime_nop(struct device *dev) -{ - /* Runtime PM callback shared between ->runtime_suspend() - * and ->runtime_resume(). Simply returns success. - * - * This driver re-initializes all registers after - * pm_runtime_get_sync() anyway so there is no need - * to save and restore registers here. - */ - return 0; -} - #ifdef CONFIG_OF static const struct of_device_id sh_msiof_match[] = { { .compatible = "renesas,sh-msiof", }, @@ -766,18 +754,12 @@ static const struct of_device_id sh_msiof_match[] = { MODULE_DEVICE_TABLE(of, sh_msiof_match); #endif -static struct dev_pm_ops sh_msiof_spi_dev_pm_ops = { - .runtime_suspend = sh_msiof_spi_runtime_nop, - .runtime_resume = sh_msiof_spi_runtime_nop, -}; - static struct platform_driver sh_msiof_spi_drv = { .probe = sh_msiof_spi_probe, .remove = sh_msiof_spi_remove, .driver = { .name = "spi_sh_msiof", .owner = THIS_MODULE, - .pm = &sh_msiof_spi_dev_pm_ops, .of_match_table = of_match_ptr(sh_msiof_match), }, }; diff --git a/drivers/spi/spi-sh-sci.c b/drivers/spi/spi-sh-sci.c index 097e506042be..8eefeb6007df 100644 --- a/drivers/spi/spi-sh-sci.c +++ b/drivers/spi/spi-sh-sci.c @@ -130,7 +130,7 @@ static int sh_sci_spi_probe(struct platform_device *dev) sp = spi_master_get_devdata(master); platform_set_drvdata(dev, sp); - sp->info = dev->dev.platform_data; + sp->info = dev_get_platdata(&dev->dev); /* setup spi bitbang adaptor */ sp->bitbang.master = spi_master_get(master); diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index fc20bcfd90c3..a1f21b747733 100644 --- a/drivers/spi/spi-sirf.c +++ b/drivers/spi/spi-sirf.c @@ -19,6 +19,10 @@ #include <linux/of_gpio.h> #include <linux/spi/spi.h> #include <linux/spi/spi_bitbang.h> +#include <linux/dmaengine.h> +#include <linux/dma-direction.h> +#include <linux/dma-mapping.h> +#include <linux/sirfsoc_dma.h> #define DRIVER_NAME "sirfsoc_spi" @@ -119,9 +123,19 @@ #define SIRFSOC_SPI_FIFO_HC(x) (((x) & 0x3F) << 20) #define SIRFSOC_SPI_FIFO_THD(x) (((x) & 0xFF) << 2) +/* + * only if the rx/tx buffer and transfer size are 4-bytes aligned, we use dma + * due to the limitation of dma controller + */ + +#define ALIGNED(x) (!((u32)x & 0x3)) +#define IS_DMA_VALID(x) (x && ALIGNED(x->tx_buf) && ALIGNED(x->rx_buf) && \ + ALIGNED(x->len) && (x->len < 2 * PAGE_SIZE)) + struct sirfsoc_spi { struct spi_bitbang bitbang; - struct completion done; + struct completion rx_done; + struct completion tx_done; void __iomem *base; u32 ctrl_freq; /* SPI controller clock speed */ @@ -137,8 +151,16 @@ struct sirfsoc_spi { void (*tx_word) (struct sirfsoc_spi *); /* number of words left to be tranmitted/received */ - unsigned int left_tx_cnt; - unsigned int left_rx_cnt; + unsigned int left_tx_word; + unsigned int left_rx_word; + + /* rx & tx DMA channels */ + struct dma_chan *rx_chan; + struct dma_chan *tx_chan; + dma_addr_t src_start; + dma_addr_t dst_start; + void *dummypage; + int word_width; /* in bytes */ int chipselect[0]; }; @@ -155,7 +177,7 @@ static void spi_sirfsoc_rx_word_u8(struct sirfsoc_spi *sspi) sspi->rx = rx; } - sspi->left_rx_cnt--; + sspi->left_rx_word--; } static void spi_sirfsoc_tx_word_u8(struct sirfsoc_spi *sspi) @@ -169,7 +191,7 @@ static void spi_sirfsoc_tx_word_u8(struct sirfsoc_spi *sspi) } writel(data, sspi->base + SIRFSOC_SPI_TXFIFO_DATA); - sspi->left_tx_cnt--; + sspi->left_tx_word--; } static void spi_sirfsoc_rx_word_u16(struct sirfsoc_spi *sspi) @@ -184,7 +206,7 @@ static void spi_sirfsoc_rx_word_u16(struct sirfsoc_spi *sspi) sspi->rx = rx; } - sspi->left_rx_cnt--; + sspi->left_rx_word--; } static void spi_sirfsoc_tx_word_u16(struct sirfsoc_spi *sspi) @@ -198,7 +220,7 @@ static void spi_sirfsoc_tx_word_u16(struct sirfsoc_spi *sspi) } writel(data, sspi->base + SIRFSOC_SPI_TXFIFO_DATA); - sspi->left_tx_cnt--; + sspi->left_tx_word--; } static void spi_sirfsoc_rx_word_u32(struct sirfsoc_spi *sspi) @@ -213,7 +235,7 @@ static void spi_sirfsoc_rx_word_u32(struct sirfsoc_spi *sspi) sspi->rx = rx; } - sspi->left_rx_cnt--; + sspi->left_rx_word--; } @@ -228,7 +250,7 @@ static void spi_sirfsoc_tx_word_u32(struct sirfsoc_spi *sspi) } writel(data, sspi->base + SIRFSOC_SPI_TXFIFO_DATA); - sspi->left_tx_cnt--; + sspi->left_tx_word--; } static irqreturn_t spi_sirfsoc_irq(int irq, void *dev_id) @@ -241,7 +263,7 @@ static irqreturn_t spi_sirfsoc_irq(int irq, void *dev_id) /* Error Conditions */ if (spi_stat & SIRFSOC_SPI_RX_OFLOW || spi_stat & SIRFSOC_SPI_TX_UFLOW) { - complete(&sspi->done); + complete(&sspi->rx_done); writel(0x0, sspi->base + SIRFSOC_SPI_INT_EN); } @@ -249,50 +271,61 @@ static irqreturn_t spi_sirfsoc_irq(int irq, void *dev_id) | SIRFSOC_SPI_RXFIFO_THD_REACH)) while (!((readl(sspi->base + SIRFSOC_SPI_RXFIFO_STATUS) & SIRFSOC_SPI_FIFO_EMPTY)) && - sspi->left_rx_cnt) + sspi->left_rx_word) sspi->rx_word(sspi); if (spi_stat & (SIRFSOC_SPI_FIFO_EMPTY | SIRFSOC_SPI_TXFIFO_THD_REACH)) while (!((readl(sspi->base + SIRFSOC_SPI_TXFIFO_STATUS) & SIRFSOC_SPI_FIFO_FULL)) && - sspi->left_tx_cnt) + sspi->left_tx_word) sspi->tx_word(sspi); /* Received all words */ - if ((sspi->left_rx_cnt == 0) && (sspi->left_tx_cnt == 0)) { - complete(&sspi->done); + if ((sspi->left_rx_word == 0) && (sspi->left_tx_word == 0)) { + complete(&sspi->rx_done); writel(0x0, sspi->base + SIRFSOC_SPI_INT_EN); } return IRQ_HANDLED; } +static void spi_sirfsoc_dma_fini_callback(void *data) +{ + struct completion *dma_complete = data; + + complete(dma_complete); +} + static int spi_sirfsoc_transfer(struct spi_device *spi, struct spi_transfer *t) { struct sirfsoc_spi *sspi; int timeout = t->len * 10; sspi = spi_master_get_devdata(spi->master); - sspi->tx = t->tx_buf; - sspi->rx = t->rx_buf; - sspi->left_tx_cnt = sspi->left_rx_cnt = t->len; - INIT_COMPLETION(sspi->done); + sspi->tx = t->tx_buf ? t->tx_buf : sspi->dummypage; + sspi->rx = t->rx_buf ? t->rx_buf : sspi->dummypage; + sspi->left_tx_word = sspi->left_rx_word = t->len / sspi->word_width; + INIT_COMPLETION(sspi->rx_done); + INIT_COMPLETION(sspi->tx_done); writel(SIRFSOC_SPI_INT_MASK_ALL, sspi->base + SIRFSOC_SPI_INT_STATUS); - if (t->len == 1) { + if (sspi->left_tx_word == 1) { writel(readl(sspi->base + SIRFSOC_SPI_CTRL) | SIRFSOC_SPI_ENA_AUTO_CLR, sspi->base + SIRFSOC_SPI_CTRL); writel(0, sspi->base + SIRFSOC_SPI_TX_DMA_IO_LEN); writel(0, sspi->base + SIRFSOC_SPI_RX_DMA_IO_LEN); - } else if ((t->len > 1) && (t->len < SIRFSOC_SPI_DAT_FRM_LEN_MAX)) { + } else if ((sspi->left_tx_word > 1) && (sspi->left_tx_word < + SIRFSOC_SPI_DAT_FRM_LEN_MAX)) { writel(readl(sspi->base + SIRFSOC_SPI_CTRL) | SIRFSOC_SPI_MUL_DAT_MODE | SIRFSOC_SPI_ENA_AUTO_CLR, sspi->base + SIRFSOC_SPI_CTRL); - writel(t->len - 1, sspi->base + SIRFSOC_SPI_TX_DMA_IO_LEN); - writel(t->len - 1, sspi->base + SIRFSOC_SPI_RX_DMA_IO_LEN); + writel(sspi->left_tx_word - 1, + sspi->base + SIRFSOC_SPI_TX_DMA_IO_LEN); + writel(sspi->left_tx_word - 1, + sspi->base + SIRFSOC_SPI_RX_DMA_IO_LEN); } else { writel(readl(sspi->base + SIRFSOC_SPI_CTRL), sspi->base + SIRFSOC_SPI_CTRL); @@ -305,17 +338,64 @@ static int spi_sirfsoc_transfer(struct spi_device *spi, struct spi_transfer *t) writel(SIRFSOC_SPI_FIFO_START, sspi->base + SIRFSOC_SPI_RXFIFO_OP); writel(SIRFSOC_SPI_FIFO_START, sspi->base + SIRFSOC_SPI_TXFIFO_OP); - /* Send the first word to trigger the whole tx/rx process */ - sspi->tx_word(sspi); + if (IS_DMA_VALID(t)) { + struct dma_async_tx_descriptor *rx_desc, *tx_desc; + + sspi->dst_start = dma_map_single(&spi->dev, sspi->rx, t->len, DMA_FROM_DEVICE); + rx_desc = dmaengine_prep_slave_single(sspi->rx_chan, + sspi->dst_start, t->len, DMA_DEV_TO_MEM, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + rx_desc->callback = spi_sirfsoc_dma_fini_callback; + rx_desc->callback_param = &sspi->rx_done; + + sspi->src_start = dma_map_single(&spi->dev, (void *)sspi->tx, t->len, DMA_TO_DEVICE); + tx_desc = dmaengine_prep_slave_single(sspi->tx_chan, + sspi->src_start, t->len, DMA_MEM_TO_DEV, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + tx_desc->callback = spi_sirfsoc_dma_fini_callback; + tx_desc->callback_param = &sspi->tx_done; + + dmaengine_submit(tx_desc); + dmaengine_submit(rx_desc); + dma_async_issue_pending(sspi->tx_chan); + dma_async_issue_pending(sspi->rx_chan); + } else { + /* Send the first word to trigger the whole tx/rx process */ + sspi->tx_word(sspi); + + writel(SIRFSOC_SPI_RX_OFLOW_INT_EN | SIRFSOC_SPI_TX_UFLOW_INT_EN | + SIRFSOC_SPI_RXFIFO_THD_INT_EN | SIRFSOC_SPI_TXFIFO_THD_INT_EN | + SIRFSOC_SPI_FRM_END_INT_EN | SIRFSOC_SPI_RXFIFO_FULL_INT_EN | + SIRFSOC_SPI_TXFIFO_EMPTY_INT_EN, sspi->base + SIRFSOC_SPI_INT_EN); + } - writel(SIRFSOC_SPI_RX_OFLOW_INT_EN | SIRFSOC_SPI_TX_UFLOW_INT_EN | - SIRFSOC_SPI_RXFIFO_THD_INT_EN | SIRFSOC_SPI_TXFIFO_THD_INT_EN | - SIRFSOC_SPI_FRM_END_INT_EN | SIRFSOC_SPI_RXFIFO_FULL_INT_EN | - SIRFSOC_SPI_TXFIFO_EMPTY_INT_EN, sspi->base + SIRFSOC_SPI_INT_EN); writel(SIRFSOC_SPI_RX_EN | SIRFSOC_SPI_TX_EN, sspi->base + SIRFSOC_SPI_TX_RX_EN); - if (wait_for_completion_timeout(&sspi->done, timeout) == 0) + if (!IS_DMA_VALID(t)) { /* for PIO */ + if (wait_for_completion_timeout(&sspi->rx_done, timeout) == 0) + dev_err(&spi->dev, "transfer timeout\n"); + } else if (wait_for_completion_timeout(&sspi->rx_done, timeout) == 0) { dev_err(&spi->dev, "transfer timeout\n"); + dmaengine_terminate_all(sspi->rx_chan); + } else + sspi->left_rx_word = 0; + + /* + * we only wait tx-done event if transferring by DMA. for PIO, + * we get rx data by writing tx data, so if rx is done, tx has + * done earlier + */ + if (IS_DMA_VALID(t)) { + if (wait_for_completion_timeout(&sspi->tx_done, timeout) == 0) { + dev_err(&spi->dev, "transfer timeout\n"); + dmaengine_terminate_all(sspi->tx_chan); + } + } + + if (IS_DMA_VALID(t)) { + dma_unmap_single(&spi->dev, sspi->src_start, t->len, DMA_TO_DEVICE); + dma_unmap_single(&spi->dev, sspi->dst_start, t->len, DMA_FROM_DEVICE); + } /* TX, RX FIFO stop */ writel(0, sspi->base + SIRFSOC_SPI_RXFIFO_OP); @@ -323,7 +403,7 @@ static int spi_sirfsoc_transfer(struct spi_device *spi, struct spi_transfer *t) writel(0, sspi->base + SIRFSOC_SPI_TX_RX_EN); writel(0, sspi->base + SIRFSOC_SPI_INT_EN); - return t->len - sspi->left_rx_cnt; + return t->len - sspi->left_rx_word * sspi->word_width; } static void spi_sirfsoc_chipselect(struct spi_device *spi, int value) @@ -332,7 +412,6 @@ static void spi_sirfsoc_chipselect(struct spi_device *spi, int value) if (sspi->chipselect[spi->chip_select] == 0) { u32 regval = readl(sspi->base + SIRFSOC_SPI_CTRL); - regval |= SIRFSOC_SPI_CS_IO_OUT; switch (value) { case BITBANG_CS_ACTIVE: if (spi->mode & SPI_CS_HIGH) @@ -369,11 +448,7 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t) bits_per_word = (t) ? t->bits_per_word : spi->bits_per_word; hz = t && t->speed_hz ? t->speed_hz : spi->max_speed_hz; - /* Enable IO mode for RX, TX */ - writel(SIRFSOC_SPI_IO_MODE_SEL, sspi->base + SIRFSOC_SPI_TX_DMA_IO_CTRL); - writel(SIRFSOC_SPI_IO_MODE_SEL, sspi->base + SIRFSOC_SPI_RX_DMA_IO_CTRL); regval = (sspi->ctrl_freq / (2 * hz)) - 1; - if (regval > 0xFFFF || regval < 0) { dev_err(&spi->dev, "Speed %d not supported\n", hz); return -EINVAL; @@ -388,6 +463,7 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t) SIRFSOC_SPI_FIFO_WIDTH_BYTE; rxfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | SIRFSOC_SPI_FIFO_WIDTH_BYTE; + sspi->word_width = 1; break; case 12: case 16: @@ -399,6 +475,7 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t) SIRFSOC_SPI_FIFO_WIDTH_WORD; rxfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | SIRFSOC_SPI_FIFO_WIDTH_WORD; + sspi->word_width = 2; break; case 32: regval |= SIRFSOC_SPI_TRAN_DAT_FORMAT_32; @@ -408,6 +485,7 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t) SIRFSOC_SPI_FIFO_WIDTH_DWORD; rxfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | SIRFSOC_SPI_FIFO_WIDTH_DWORD; + sspi->word_width = 4; break; default: BUG(); @@ -442,6 +520,17 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t) writel(rxfifo_ctrl, sspi->base + SIRFSOC_SPI_RXFIFO_CTRL); writel(regval, sspi->base + SIRFSOC_SPI_CTRL); + + if (IS_DMA_VALID(t)) { + /* Enable DMA mode for RX, TX */ + writel(0, sspi->base + SIRFSOC_SPI_TX_DMA_IO_CTRL); + writel(SIRFSOC_SPI_RX_DMA_FLUSH, sspi->base + SIRFSOC_SPI_RX_DMA_IO_CTRL); + } else { + /* Enable IO mode for RX, TX */ + writel(SIRFSOC_SPI_IO_MODE_SEL, sspi->base + SIRFSOC_SPI_TX_DMA_IO_CTRL); + writel(SIRFSOC_SPI_IO_MODE_SEL, sspi->base + SIRFSOC_SPI_RX_DMA_IO_CTRL); + } + return 0; } @@ -466,6 +555,8 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) struct spi_master *master; struct resource *mem_res; int num_cs, cs_gpio, irq; + u32 rx_dma_ch, tx_dma_ch; + dma_cap_mask_t dma_cap_mask; int i; int ret; @@ -476,6 +567,20 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) goto err_cs; } + ret = of_property_read_u32(pdev->dev.of_node, + "sirf,spi-dma-rx-channel", &rx_dma_ch); + if (ret < 0) { + dev_err(&pdev->dev, "Unable to get rx dma channel\n"); + goto err_cs; + } + + ret = of_property_read_u32(pdev->dev.of_node, + "sirf,spi-dma-tx-channel", &tx_dma_ch); + if (ret < 0) { + dev_err(&pdev->dev, "Unable to get tx dma channel\n"); + goto err_cs; + } + master = spi_alloc_master(&pdev->dev, sizeof(*sspi) + sizeof(int) * num_cs); if (!master) { dev_err(&pdev->dev, "Unable to allocate SPI master\n"); @@ -484,12 +589,6 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, master); sspi = spi_master_get_devdata(master); - mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem_res) { - dev_err(&pdev->dev, "Unable to get IO resource\n"); - ret = -ENODEV; - goto free_master; - } master->num_chipselect = num_cs; for (i = 0; i < master->num_chipselect; i++) { @@ -516,6 +615,7 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) } } + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); sspi->base = devm_ioremap_resource(&pdev->dev, mem_res); if (IS_ERR(sspi->base)) { ret = PTR_ERR(sspi->base); @@ -538,19 +638,40 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) sspi->bitbang.txrx_bufs = spi_sirfsoc_transfer; sspi->bitbang.master->setup = spi_sirfsoc_setup; master->bus_num = pdev->id; + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST | SPI_CS_HIGH; master->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(12) | SPI_BPW_MASK(16) | SPI_BPW_MASK(32); sspi->bitbang.master->dev.of_node = pdev->dev.of_node; + /* request DMA channels */ + dma_cap_zero(dma_cap_mask); + dma_cap_set(DMA_INTERLEAVE, dma_cap_mask); + + sspi->rx_chan = dma_request_channel(dma_cap_mask, (dma_filter_fn)sirfsoc_dma_filter_id, + (void *)rx_dma_ch); + if (!sspi->rx_chan) { + dev_err(&pdev->dev, "can not allocate rx dma channel\n"); + ret = -ENODEV; + goto free_master; + } + sspi->tx_chan = dma_request_channel(dma_cap_mask, (dma_filter_fn)sirfsoc_dma_filter_id, + (void *)tx_dma_ch); + if (!sspi->tx_chan) { + dev_err(&pdev->dev, "can not allocate tx dma channel\n"); + ret = -ENODEV; + goto free_rx_dma; + } + sspi->clk = clk_get(&pdev->dev, NULL); if (IS_ERR(sspi->clk)) { - ret = -EINVAL; - goto free_master; + ret = PTR_ERR(sspi->clk); + goto free_tx_dma; } clk_prepare_enable(sspi->clk); sspi->ctrl_freq = clk_get_rate(sspi->clk); - init_completion(&sspi->done); + init_completion(&sspi->rx_done); + init_completion(&sspi->tx_done); writel(SIRFSOC_SPI_FIFO_RESET, sspi->base + SIRFSOC_SPI_RXFIFO_OP); writel(SIRFSOC_SPI_FIFO_RESET, sspi->base + SIRFSOC_SPI_TXFIFO_OP); @@ -559,17 +680,28 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) /* We are not using dummy delay between command and data */ writel(0, sspi->base + SIRFSOC_SPI_DUMMY_DELAY_CTL); + sspi->dummypage = kmalloc(2 * PAGE_SIZE, GFP_KERNEL); + if (!sspi->dummypage) { + ret = -ENOMEM; + goto free_clk; + } + ret = spi_bitbang_start(&sspi->bitbang); if (ret) - goto free_clk; + goto free_dummypage; dev_info(&pdev->dev, "registerred, bus number = %d\n", master->bus_num); return 0; - +free_dummypage: + kfree(sspi->dummypage); free_clk: clk_disable_unprepare(sspi->clk); clk_put(sspi->clk); +free_tx_dma: + dma_release_channel(sspi->tx_chan); +free_rx_dma: + dma_release_channel(sspi->rx_chan); free_master: spi_master_put(master); err_cs: @@ -590,8 +722,11 @@ static int spi_sirfsoc_remove(struct platform_device *pdev) if (sspi->chipselect[i] > 0) gpio_free(sspi->chipselect[i]); } + kfree(sspi->dummypage); clk_disable_unprepare(sspi->clk); clk_put(sspi->clk); + dma_release_channel(sspi->rx_chan); + dma_release_channel(sspi->tx_chan); spi_master_put(master); return 0; } @@ -599,8 +734,7 @@ static int spi_sirfsoc_remove(struct platform_device *pdev) #ifdef CONFIG_PM static int spi_sirfsoc_suspend(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct spi_master *master = platform_get_drvdata(pdev); + struct spi_master *master = dev_get_drvdata(dev); struct sirfsoc_spi *sspi = spi_master_get_devdata(master); clk_disable(sspi->clk); @@ -609,8 +743,7 @@ static int spi_sirfsoc_suspend(struct device *dev) static int spi_sirfsoc_resume(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct spi_master *master = platform_get_drvdata(pdev); + struct spi_master *master = dev_get_drvdata(dev); struct sirfsoc_spi *sspi = spi_master_get_devdata(master); clk_enable(sspi->clk); diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c index e8f542ab8935..145dd435483b 100644 --- a/drivers/spi/spi-tegra114.c +++ b/drivers/spi/spi-tegra114.c @@ -816,14 +816,6 @@ static int tegra_spi_transfer_one_message(struct spi_master *master, msg->status = 0; msg->actual_length = 0; - ret = pm_runtime_get_sync(tspi->dev); - if (ret < 0) { - dev_err(tspi->dev, "runtime PM get failed: %d\n", ret); - msg->status = ret; - spi_finalize_current_message(master); - return ret; - } - single_xfer = list_is_singular(&msg->transfers); list_for_each_entry(xfer, &msg->transfers, transfer_list) { INIT_COMPLETION(tspi->xfer_completion); @@ -859,7 +851,6 @@ static int tegra_spi_transfer_one_message(struct spi_master *master, ret = 0; exit: tegra_spi_writel(tspi, tspi->def_command1_reg, SPI_COMMAND1); - pm_runtime_put(tspi->dev); msg->status = ret; spi_finalize_current_message(master); return ret; @@ -1053,24 +1044,19 @@ static int tegra_spi_probe(struct platform_device *pdev) master->transfer_one_message = tegra_spi_transfer_one_message; master->num_chipselect = MAX_CHIP_SELECT; master->bus_num = -1; + master->auto_runtime_pm = true; tspi->master = master; tspi->dev = &pdev->dev; spin_lock_init(&tspi->lock); r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - dev_err(&pdev->dev, "No IO memory resource\n"); - ret = -ENODEV; - goto exit_free_master; - } - tspi->phys = r->start; tspi->base = devm_ioremap_resource(&pdev->dev, r); if (IS_ERR(tspi->base)) { ret = PTR_ERR(tspi->base); - dev_err(&pdev->dev, "ioremap failed: err = %d\n", ret); goto exit_free_master; } + tspi->phys = r->start; spi_irq = platform_get_irq(pdev, 0); tspi->irq = spi_irq; diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c index c1d5d95e70ea..1d814dc6e000 100644 --- a/drivers/spi/spi-tegra20-sflash.c +++ b/drivers/spi/spi-tegra20-sflash.c @@ -335,12 +335,6 @@ static int tegra_sflash_transfer_one_message(struct spi_master *master, struct spi_device *spi = msg->spi; int ret; - ret = pm_runtime_get_sync(tsd->dev); - if (ret < 0) { - dev_err(tsd->dev, "pm_runtime_get() failed, err = %d\n", ret); - return ret; - } - msg->status = 0; msg->actual_length = 0; single_xfer = list_is_singular(&msg->transfers); @@ -380,7 +374,6 @@ exit: tegra_sflash_writel(tsd, tsd->def_command_reg, SPI_COMMAND); msg->status = ret; spi_finalize_current_message(master); - pm_runtime_put(tsd->dev); return ret; } @@ -477,6 +470,7 @@ static int tegra_sflash_probe(struct platform_device *pdev) master->mode_bits = SPI_CPOL | SPI_CPHA; master->setup = tegra_sflash_setup; master->transfer_one_message = tegra_sflash_transfer_one_message; + master->auto_runtime_pm = true; master->num_chipselect = MAX_CHIP_SELECT; master->bus_num = -1; diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index 80490cc11ce5..c70353672a23 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -836,11 +836,6 @@ static int tegra_slink_transfer_one_message(struct spi_master *master, msg->status = 0; msg->actual_length = 0; - ret = pm_runtime_get_sync(tspi->dev); - if (ret < 0) { - dev_err(tspi->dev, "runtime get failed: %d\n", ret); - goto done; - } single_xfer = list_is_singular(&msg->transfers); list_for_each_entry(xfer, &msg->transfers, transfer_list) { @@ -878,8 +873,6 @@ static int tegra_slink_transfer_one_message(struct spi_master *master, exit: tegra_slink_writel(tspi, tspi->def_command_reg, SLINK_COMMAND); tegra_slink_writel(tspi, tspi->def_command2_reg, SLINK_COMMAND2); - pm_runtime_put(tspi->dev); -done: msg->status = ret; spi_finalize_current_message(master); return ret; @@ -1086,6 +1079,7 @@ static int tegra_slink_probe(struct platform_device *pdev) master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; master->setup = tegra_slink_setup; master->transfer_one_message = tegra_slink_transfer_one_message; + master->auto_runtime_pm = true; master->num_chipselect = MAX_CHIP_SELECT; master->bus_num = -1; diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c new file mode 100644 index 000000000000..e12d962a289f --- /dev/null +++ b/drivers/spi/spi-ti-qspi.c @@ -0,0 +1,574 @@ +/* + * TI QSPI driver + * + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com + * Author: Sourav Poddar <sourav.poddar@ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GPLv2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/dmaengine.h> +#include <linux/omap-dma.h> +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/pm_runtime.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/pinctrl/consumer.h> + +#include <linux/spi/spi.h> + +struct ti_qspi_regs { + u32 clkctrl; +}; + +struct ti_qspi { + struct completion transfer_complete; + + /* IRQ synchronization */ + spinlock_t lock; + + /* list synchronization */ + struct mutex list_lock; + + struct spi_master *master; + void __iomem *base; + struct clk *fclk; + struct device *dev; + + struct ti_qspi_regs ctx_reg; + + u32 spi_max_frequency; + u32 cmd; + u32 dc; + u32 stat; +}; + +#define QSPI_PID (0x0) +#define QSPI_SYSCONFIG (0x10) +#define QSPI_INTR_STATUS_RAW_SET (0x20) +#define QSPI_INTR_STATUS_ENABLED_CLEAR (0x24) +#define QSPI_INTR_ENABLE_SET_REG (0x28) +#define QSPI_INTR_ENABLE_CLEAR_REG (0x2c) +#define QSPI_SPI_CLOCK_CNTRL_REG (0x40) +#define QSPI_SPI_DC_REG (0x44) +#define QSPI_SPI_CMD_REG (0x48) +#define QSPI_SPI_STATUS_REG (0x4c) +#define QSPI_SPI_DATA_REG (0x50) +#define QSPI_SPI_SETUP0_REG (0x54) +#define QSPI_SPI_SWITCH_REG (0x64) +#define QSPI_SPI_SETUP1_REG (0x58) +#define QSPI_SPI_SETUP2_REG (0x5c) +#define QSPI_SPI_SETUP3_REG (0x60) +#define QSPI_SPI_DATA_REG_1 (0x68) +#define QSPI_SPI_DATA_REG_2 (0x6c) +#define QSPI_SPI_DATA_REG_3 (0x70) + +#define QSPI_COMPLETION_TIMEOUT msecs_to_jiffies(2000) + +#define QSPI_FCLK 192000000 + +/* Clock Control */ +#define QSPI_CLK_EN (1 << 31) +#define QSPI_CLK_DIV_MAX 0xffff + +/* Command */ +#define QSPI_EN_CS(n) (n << 28) +#define QSPI_WLEN(n) ((n - 1) << 19) +#define QSPI_3_PIN (1 << 18) +#define QSPI_RD_SNGL (1 << 16) +#define QSPI_WR_SNGL (2 << 16) +#define QSPI_RD_DUAL (3 << 16) +#define QSPI_RD_QUAD (7 << 16) +#define QSPI_INVAL (4 << 16) +#define QSPI_WC_CMD_INT_EN (1 << 14) +#define QSPI_FLEN(n) ((n - 1) << 0) + +/* STATUS REGISTER */ +#define WC 0x02 + +/* INTERRUPT REGISTER */ +#define QSPI_WC_INT_EN (1 << 1) +#define QSPI_WC_INT_DISABLE (1 << 1) + +/* Device Control */ +#define QSPI_DD(m, n) (m << (3 + n * 8)) +#define QSPI_CKPHA(n) (1 << (2 + n * 8)) +#define QSPI_CSPOL(n) (1 << (1 + n * 8)) +#define QSPI_CKPOL(n) (1 << (n * 8)) + +#define QSPI_FRAME 4096 + +#define QSPI_AUTOSUSPEND_TIMEOUT 2000 + +static inline unsigned long ti_qspi_read(struct ti_qspi *qspi, + unsigned long reg) +{ + return readl(qspi->base + reg); +} + +static inline void ti_qspi_write(struct ti_qspi *qspi, + unsigned long val, unsigned long reg) +{ + writel(val, qspi->base + reg); +} + +static int ti_qspi_setup(struct spi_device *spi) +{ + struct ti_qspi *qspi = spi_master_get_devdata(spi->master); + struct ti_qspi_regs *ctx_reg = &qspi->ctx_reg; + int clk_div = 0, ret; + u32 clk_ctrl_reg, clk_rate, clk_mask; + + if (spi->master->busy) { + dev_dbg(qspi->dev, "master busy doing other trasnfers\n"); + return -EBUSY; + } + + if (!qspi->spi_max_frequency) { + dev_err(qspi->dev, "spi max frequency not defined\n"); + return -EINVAL; + } + + clk_rate = clk_get_rate(qspi->fclk); + + clk_div = DIV_ROUND_UP(clk_rate, qspi->spi_max_frequency) - 1; + + if (clk_div < 0) { + dev_dbg(qspi->dev, "clock divider < 0, using /1 divider\n"); + return -EINVAL; + } + + if (clk_div > QSPI_CLK_DIV_MAX) { + dev_dbg(qspi->dev, "clock divider >%d , using /%d divider\n", + QSPI_CLK_DIV_MAX, QSPI_CLK_DIV_MAX + 1); + return -EINVAL; + } + + dev_dbg(qspi->dev, "hz: %d, clock divider %d\n", + qspi->spi_max_frequency, clk_div); + + ret = pm_runtime_get_sync(qspi->dev); + if (ret) { + dev_err(qspi->dev, "pm_runtime_get_sync() failed\n"); + return ret; + } + + clk_ctrl_reg = ti_qspi_read(qspi, QSPI_SPI_CLOCK_CNTRL_REG); + + clk_ctrl_reg &= ~QSPI_CLK_EN; + + /* disable SCLK */ + ti_qspi_write(qspi, clk_ctrl_reg, QSPI_SPI_CLOCK_CNTRL_REG); + + /* enable SCLK */ + clk_mask = QSPI_CLK_EN | clk_div; + ti_qspi_write(qspi, clk_mask, QSPI_SPI_CLOCK_CNTRL_REG); + ctx_reg->clkctrl = clk_mask; + + pm_runtime_mark_last_busy(qspi->dev); + ret = pm_runtime_put_autosuspend(qspi->dev); + if (ret < 0) { + dev_err(qspi->dev, "pm_runtime_put_autosuspend() failed\n"); + return ret; + } + + return 0; +} + +static void ti_qspi_restore_ctx(struct ti_qspi *qspi) +{ + struct ti_qspi_regs *ctx_reg = &qspi->ctx_reg; + + ti_qspi_write(qspi, ctx_reg->clkctrl, QSPI_SPI_CLOCK_CNTRL_REG); +} + +static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t) +{ + int wlen, count, ret; + unsigned int cmd; + const u8 *txbuf; + + txbuf = t->tx_buf; + cmd = qspi->cmd | QSPI_WR_SNGL; + count = t->len; + wlen = t->bits_per_word; + + while (count) { + switch (wlen) { + case 8: + dev_dbg(qspi->dev, "tx cmd %08x dc %08x data %02x\n", + cmd, qspi->dc, *txbuf); + writeb(*txbuf, qspi->base + QSPI_SPI_DATA_REG); + ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG); + ret = wait_for_completion_timeout(&qspi->transfer_complete, + QSPI_COMPLETION_TIMEOUT); + if (ret == 0) { + dev_err(qspi->dev, "write timed out\n"); + return -ETIMEDOUT; + } + txbuf += 1; + count -= 1; + break; + case 16: + dev_dbg(qspi->dev, "tx cmd %08x dc %08x data %04x\n", + cmd, qspi->dc, *txbuf); + writew(*((u16 *)txbuf), qspi->base + QSPI_SPI_DATA_REG); + ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG); + ret = wait_for_completion_timeout(&qspi->transfer_complete, + QSPI_COMPLETION_TIMEOUT); + if (ret == 0) { + dev_err(qspi->dev, "write timed out\n"); + return -ETIMEDOUT; + } + txbuf += 2; + count -= 2; + break; + case 32: + dev_dbg(qspi->dev, "tx cmd %08x dc %08x data %08x\n", + cmd, qspi->dc, *txbuf); + writel(*((u32 *)txbuf), qspi->base + QSPI_SPI_DATA_REG); + ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG); + ret = wait_for_completion_timeout(&qspi->transfer_complete, + QSPI_COMPLETION_TIMEOUT); + if (ret == 0) { + dev_err(qspi->dev, "write timed out\n"); + return -ETIMEDOUT; + } + txbuf += 4; + count -= 4; + break; + } + } + + return 0; +} + +static int qspi_read_msg(struct ti_qspi *qspi, struct spi_transfer *t) +{ + int wlen, count, ret; + unsigned int cmd; + u8 *rxbuf; + + rxbuf = t->rx_buf; + cmd = qspi->cmd; + switch (t->rx_nbits) { + case SPI_NBITS_DUAL: + cmd |= QSPI_RD_DUAL; + break; + case SPI_NBITS_QUAD: + cmd |= QSPI_RD_QUAD; + break; + default: + cmd |= QSPI_RD_SNGL; + break; + } + count = t->len; + wlen = t->bits_per_word; + + while (count) { + dev_dbg(qspi->dev, "rx cmd %08x dc %08x\n", cmd, qspi->dc); + ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG); + ret = wait_for_completion_timeout(&qspi->transfer_complete, + QSPI_COMPLETION_TIMEOUT); + if (ret == 0) { + dev_err(qspi->dev, "read timed out\n"); + return -ETIMEDOUT; + } + switch (wlen) { + case 8: + *rxbuf = readb(qspi->base + QSPI_SPI_DATA_REG); + rxbuf += 1; + count -= 1; + break; + case 16: + *((u16 *)rxbuf) = readw(qspi->base + QSPI_SPI_DATA_REG); + rxbuf += 2; + count -= 2; + break; + case 32: + *((u32 *)rxbuf) = readl(qspi->base + QSPI_SPI_DATA_REG); + rxbuf += 4; + count -= 4; + break; + } + } + + return 0; +} + +static int qspi_transfer_msg(struct ti_qspi *qspi, struct spi_transfer *t) +{ + int ret; + + if (t->tx_buf) { + ret = qspi_write_msg(qspi, t); + if (ret) { + dev_dbg(qspi->dev, "Error while writing\n"); + return ret; + } + } + + if (t->rx_buf) { + ret = qspi_read_msg(qspi, t); + if (ret) { + dev_dbg(qspi->dev, "Error while reading\n"); + return ret; + } + } + + return 0; +} + +static int ti_qspi_start_transfer_one(struct spi_master *master, + struct spi_message *m) +{ + struct ti_qspi *qspi = spi_master_get_devdata(master); + struct spi_device *spi = m->spi; + struct spi_transfer *t; + int status = 0, ret; + int frame_length; + + /* setup device control reg */ + qspi->dc = 0; + + if (spi->mode & SPI_CPHA) + qspi->dc |= QSPI_CKPHA(spi->chip_select); + if (spi->mode & SPI_CPOL) + qspi->dc |= QSPI_CKPOL(spi->chip_select); + if (spi->mode & SPI_CS_HIGH) + qspi->dc |= QSPI_CSPOL(spi->chip_select); + + frame_length = (m->frame_length << 3) / spi->bits_per_word; + + frame_length = clamp(frame_length, 0, QSPI_FRAME); + + /* setup command reg */ + qspi->cmd = 0; + qspi->cmd |= QSPI_EN_CS(spi->chip_select); + qspi->cmd |= QSPI_FLEN(frame_length); + qspi->cmd |= QSPI_WC_CMD_INT_EN; + + ti_qspi_write(qspi, QSPI_WC_INT_EN, QSPI_INTR_ENABLE_SET_REG); + ti_qspi_write(qspi, qspi->dc, QSPI_SPI_DC_REG); + + mutex_lock(&qspi->list_lock); + + list_for_each_entry(t, &m->transfers, transfer_list) { + qspi->cmd |= QSPI_WLEN(t->bits_per_word); + + ret = qspi_transfer_msg(qspi, t); + if (ret) { + dev_dbg(qspi->dev, "transfer message failed\n"); + mutex_unlock(&qspi->list_lock); + return -EINVAL; + } + + m->actual_length += t->len; + } + + mutex_unlock(&qspi->list_lock); + + m->status = status; + spi_finalize_current_message(master); + + ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG); + + return status; +} + +static irqreturn_t ti_qspi_isr(int irq, void *dev_id) +{ + struct ti_qspi *qspi = dev_id; + u16 int_stat; + + irqreturn_t ret = IRQ_HANDLED; + + spin_lock(&qspi->lock); + + int_stat = ti_qspi_read(qspi, QSPI_INTR_STATUS_ENABLED_CLEAR); + qspi->stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG); + + if (!int_stat) { + dev_dbg(qspi->dev, "No IRQ triggered\n"); + ret = IRQ_NONE; + goto out; + } + + ret = IRQ_WAKE_THREAD; + + ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, QSPI_INTR_ENABLE_CLEAR_REG); + ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, + QSPI_INTR_STATUS_ENABLED_CLEAR); + +out: + spin_unlock(&qspi->lock); + + return ret; +} + +static irqreturn_t ti_qspi_threaded_isr(int this_irq, void *dev_id) +{ + struct ti_qspi *qspi = dev_id; + unsigned long flags; + + spin_lock_irqsave(&qspi->lock, flags); + + if (qspi->stat & WC) + complete(&qspi->transfer_complete); + + spin_unlock_irqrestore(&qspi->lock, flags); + + ti_qspi_write(qspi, QSPI_WC_INT_EN, QSPI_INTR_ENABLE_SET_REG); + + return IRQ_HANDLED; +} + +static int ti_qspi_runtime_resume(struct device *dev) +{ + struct ti_qspi *qspi; + struct spi_master *master; + + master = dev_get_drvdata(dev); + qspi = spi_master_get_devdata(master); + ti_qspi_restore_ctx(qspi); + + return 0; +} + +static const struct of_device_id ti_qspi_match[] = { + {.compatible = "ti,dra7xxx-qspi" }, + {.compatible = "ti,am4372-qspi" }, + {}, +}; +MODULE_DEVICE_TABLE(of, ti_qspi_match); + +static int ti_qspi_probe(struct platform_device *pdev) +{ + struct ti_qspi *qspi; + struct spi_master *master; + struct resource *r; + struct device_node *np = pdev->dev.of_node; + u32 max_freq; + int ret = 0, num_cs, irq; + + master = spi_alloc_master(&pdev->dev, sizeof(*qspi)); + if (!master) + return -ENOMEM; + + master->mode_bits = SPI_CPOL | SPI_CPHA; + + master->bus_num = -1; + master->flags = SPI_MASTER_HALF_DUPLEX; + master->setup = ti_qspi_setup; + master->auto_runtime_pm = true; + master->transfer_one_message = ti_qspi_start_transfer_one; + master->dev.of_node = pdev->dev.of_node; + master->bits_per_word_mask = BIT(32 - 1) | BIT(16 - 1) | BIT(8 - 1); + + if (!of_property_read_u32(np, "num-cs", &num_cs)) + master->num_chipselect = num_cs; + + platform_set_drvdata(pdev, master); + + qspi = spi_master_get_devdata(master); + qspi->master = master; + qspi->dev = &pdev->dev; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(&pdev->dev, "no irq resource?\n"); + return irq; + } + + spin_lock_init(&qspi->lock); + mutex_init(&qspi->list_lock); + + qspi->base = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(qspi->base)) { + ret = PTR_ERR(qspi->base); + goto free_master; + } + + ret = devm_request_threaded_irq(&pdev->dev, irq, ti_qspi_isr, + ti_qspi_threaded_isr, 0, + dev_name(&pdev->dev), qspi); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n", + irq); + goto free_master; + } + + qspi->fclk = devm_clk_get(&pdev->dev, "fck"); + if (IS_ERR(qspi->fclk)) { + ret = PTR_ERR(qspi->fclk); + dev_err(&pdev->dev, "could not get clk: %d\n", ret); + } + + init_completion(&qspi->transfer_complete); + + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, QSPI_AUTOSUSPEND_TIMEOUT); + pm_runtime_enable(&pdev->dev); + + if (!of_property_read_u32(np, "spi-max-frequency", &max_freq)) + qspi->spi_max_frequency = max_freq; + + ret = spi_register_master(master); + if (ret) + goto free_master; + + return 0; + +free_master: + spi_master_put(master); + return ret; +} + +static int ti_qspi_remove(struct platform_device *pdev) +{ + struct ti_qspi *qspi = platform_get_drvdata(pdev); + + spi_unregister_master(qspi->master); + + return 0; +} + +static const struct dev_pm_ops ti_qspi_pm_ops = { + .runtime_resume = ti_qspi_runtime_resume, +}; + +static struct platform_driver ti_qspi_driver = { + .probe = ti_qspi_probe, + .remove = ti_qspi_remove, + .driver = { + .name = "ti,dra7xxx-qspi", + .owner = THIS_MODULE, + .pm = &ti_qspi_pm_ops, + .of_match_table = ti_qspi_match, + } +}; + +module_platform_driver(ti_qspi_driver); + +MODULE_AUTHOR("Sourav Poddar <sourav.poddar@ti.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("TI QSPI controller driver"); diff --git a/drivers/spi/spi-ti-ssp.c b/drivers/spi/spi-ti-ssp.c index 10606fcc6efc..7d20e121e4c1 100644 --- a/drivers/spi/spi-ti-ssp.c +++ b/drivers/spi/spi-ti-ssp.c @@ -283,7 +283,7 @@ static int ti_ssp_spi_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; int error = 0; - pdata = dev->platform_data; + pdata = dev_get_platdata(dev); if (!pdata) { dev_err(dev, "platform data not found\n"); return -EINVAL; diff --git a/drivers/spi/spi-tle62x0.c b/drivers/spi/spi-tle62x0.c index 6b0874d782ed..2d4010d80824 100644 --- a/drivers/spi/spi-tle62x0.c +++ b/drivers/spi/spi-tle62x0.c @@ -52,8 +52,7 @@ static inline int tle62x0_write(struct tle62x0_state *st) buff[1] = gpio_state; } - dev_dbg(&st->us->dev, "buff %02x,%02x,%02x\n", - buff[0], buff[1], buff[2]); + dev_dbg(&st->us->dev, "buff %3ph\n", buff); return spi_write(st->us, buff, (st->nr_gpio == 16) ? 3 : 2); } @@ -247,7 +246,7 @@ static int tle62x0_probe(struct spi_device *spi) int ptr; int ret; - pdata = spi->dev.platform_data; + pdata = dev_get_platdata(&spi->dev); if (pdata == NULL) { dev_err(&spi->dev, "no device data specified\n"); return -EINVAL; diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c index dd55707a6aa5..eaeeed51bbbf 100644 --- a/drivers/spi/spi-topcliff-pch.c +++ b/drivers/spi/spi-topcliff-pch.c @@ -1797,3 +1797,5 @@ MODULE_PARM_DESC(use_dma, MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Intel EG20T PCH/LAPIS Semiconductor ML7xxx IOH SPI Driver"); +MODULE_DEVICE_TABLE(pci, pch_spi_pcidev_id); + diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c index e9b7681ff6ac..7c6d15766c72 100644 --- a/drivers/spi/spi-txx9.c +++ b/drivers/spi/spi-txx9.c @@ -26,7 +26,7 @@ #include <linux/clk.h> #include <linux/io.h> #include <linux/module.h> -#include <asm/gpio.h> +#include <linux/gpio.h> #define SPI_FIFO_SIZE 4 diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 09a942852593..0bf1b2c457a1 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -80,10 +80,9 @@ struct xilinx_spi { /* bitbang has to be first */ struct spi_bitbang bitbang; struct completion done; - struct resource mem; /* phys mem */ void __iomem *regs; /* virt. address of the control registers */ - u32 irq; + int irq; u8 *rx_ptr; /* pointer in the Tx buffer */ const u8 *tx_ptr; /* pointer in the Rx buffer */ @@ -233,21 +232,6 @@ static int xilinx_spi_setup_transfer(struct spi_device *spi, return 0; } -static int xilinx_spi_setup(struct spi_device *spi) -{ - /* always return 0, we can not check the number of bits. - * There are cases when SPI setup is called before any driver is - * there, in that case the SPI core defaults to 8 bits, which we - * do not support in some cases. But if we return an error, the - * SPI device would not be registered and no driver can get hold of it - * When the driver is there, it will call SPI setup again with the - * correct number of bits per transfer. - * If a driver setups with the wrong bit number, it will fail when - * it tries to do a transfer - */ - return 0; -} - static void xilinx_spi_fill_tx_fifo(struct xilinx_spi *xspi) { u8 sr; @@ -355,17 +339,34 @@ static const struct of_device_id xilinx_spi_of_match[] = { }; MODULE_DEVICE_TABLE(of, xilinx_spi_of_match); -struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem, - u32 irq, s16 bus_num, int num_cs, int bits_per_word) +static int xilinx_spi_probe(struct platform_device *pdev) { - struct spi_master *master; struct xilinx_spi *xspi; - int ret; + struct xspi_platform_data *pdata; + struct resource *res; + int ret, num_cs = 0, bits_per_word = 8; + struct spi_master *master; u32 tmp; + u8 i; + + pdata = dev_get_platdata(&pdev->dev); + if (pdata) { + num_cs = pdata->num_chipselect; + bits_per_word = pdata->bits_per_word; + } else { + of_property_read_u32(pdev->dev.of_node, "xlnx,num-ss-bits", + &num_cs); + } + + if (!num_cs) { + dev_err(&pdev->dev, + "Missing slave select configuration data\n"); + return -EINVAL; + } - master = spi_alloc_master(dev, sizeof(struct xilinx_spi)); + master = spi_alloc_master(&pdev->dev, sizeof(struct xilinx_spi)); if (!master) - return NULL; + return -ENODEV; /* the spi->mode bits understood by this driver: */ master->mode_bits = SPI_CPOL | SPI_CPHA; @@ -375,25 +376,18 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem, xspi->bitbang.chipselect = xilinx_spi_chipselect; xspi->bitbang.setup_transfer = xilinx_spi_setup_transfer; xspi->bitbang.txrx_bufs = xilinx_spi_txrx_bufs; - xspi->bitbang.master->setup = xilinx_spi_setup; init_completion(&xspi->done); - if (!request_mem_region(mem->start, resource_size(mem), - XILINX_SPI_NAME)) + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + xspi->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(xspi->regs)) { + ret = PTR_ERR(xspi->regs); goto put_master; - - xspi->regs = ioremap(mem->start, resource_size(mem)); - if (xspi->regs == NULL) { - dev_warn(dev, "ioremap failure\n"); - goto map_failed; } - master->bus_num = bus_num; + master->bus_num = pdev->dev.id; master->num_chipselect = num_cs; - master->dev.of_node = dev->of_node; - - xspi->mem = *mem; - xspi->irq = irq; + master->dev.of_node = pdev->dev.of_node; /* * Detect endianess on the IP via loop bit in CR. Detection @@ -423,113 +417,63 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem, } else if (xspi->bits_per_word == 32) { xspi->tx_fn = xspi_tx32; xspi->rx_fn = xspi_rx32; - } else - goto unmap_io; - + } else { + ret = -EINVAL; + goto put_master; + } /* SPI controller initializations */ xspi_init_hw(xspi); + xspi->irq = platform_get_irq(pdev, 0); + if (xspi->irq < 0) { + ret = xspi->irq; + goto put_master; + } + /* Register for SPI Interrupt */ - ret = request_irq(xspi->irq, xilinx_spi_irq, 0, XILINX_SPI_NAME, xspi); + ret = devm_request_irq(&pdev->dev, xspi->irq, xilinx_spi_irq, 0, + dev_name(&pdev->dev), xspi); if (ret) - goto unmap_io; + goto put_master; ret = spi_bitbang_start(&xspi->bitbang); if (ret) { - dev_err(dev, "spi_bitbang_start FAILED\n"); - goto free_irq; - } - - dev_info(dev, "at 0x%08llX mapped to 0x%p, irq=%d\n", - (unsigned long long)mem->start, xspi->regs, xspi->irq); - return master; - -free_irq: - free_irq(xspi->irq, xspi); -unmap_io: - iounmap(xspi->regs); -map_failed: - release_mem_region(mem->start, resource_size(mem)); -put_master: - spi_master_put(master); - return NULL; -} -EXPORT_SYMBOL(xilinx_spi_init); - -void xilinx_spi_deinit(struct spi_master *master) -{ - struct xilinx_spi *xspi; - - xspi = spi_master_get_devdata(master); - - spi_bitbang_stop(&xspi->bitbang); - free_irq(xspi->irq, xspi); - iounmap(xspi->regs); - - release_mem_region(xspi->mem.start, resource_size(&xspi->mem)); - spi_master_put(xspi->bitbang.master); -} -EXPORT_SYMBOL(xilinx_spi_deinit); - -static int xilinx_spi_probe(struct platform_device *dev) -{ - struct xspi_platform_data *pdata; - struct resource *r; - int irq, num_cs = 0, bits_per_word = 8; - struct spi_master *master; - u8 i; - - pdata = dev->dev.platform_data; - if (pdata) { - num_cs = pdata->num_chipselect; - bits_per_word = pdata->bits_per_word; - } - -#ifdef CONFIG_OF - if (dev->dev.of_node) { - const __be32 *prop; - int len; - - /* number of slave select bits is required */ - prop = of_get_property(dev->dev.of_node, "xlnx,num-ss-bits", - &len); - if (prop && len >= sizeof(*prop)) - num_cs = __be32_to_cpup(prop); - } -#endif - - if (!num_cs) { - dev_err(&dev->dev, "Missing slave select configuration data\n"); - return -EINVAL; + dev_err(&pdev->dev, "spi_bitbang_start FAILED\n"); + goto put_master; } - - r = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!r) - return -ENODEV; - - irq = platform_get_irq(dev, 0); - if (irq < 0) - return -ENXIO; - - master = xilinx_spi_init(&dev->dev, r, irq, dev->id, num_cs, - bits_per_word); - if (!master) - return -ENODEV; + dev_info(&pdev->dev, "at 0x%08llX mapped to 0x%p, irq=%d\n", + (unsigned long long)res->start, xspi->regs, xspi->irq); if (pdata) { for (i = 0; i < pdata->num_devices; i++) spi_new_device(master, pdata->devices + i); } - platform_set_drvdata(dev, master); + platform_set_drvdata(pdev, master); return 0; + +put_master: + spi_master_put(master); + + return ret; } -static int xilinx_spi_remove(struct platform_device *dev) +static int xilinx_spi_remove(struct platform_device *pdev) { - xilinx_spi_deinit(platform_get_drvdata(dev)); + struct spi_master *master = platform_get_drvdata(pdev); + struct xilinx_spi *xspi = spi_master_get_devdata(master); + void __iomem *regs_base = xspi->regs; + + spi_bitbang_stop(&xspi->bitbang); + + /* Disable all the interrupts just in case */ + xspi->write_fn(0, regs_base + XIPIF_V123B_IIER_OFFSET); + /* Disable the global IPIF interrupt */ + xspi->write_fn(0, regs_base + XIPIF_V123B_DGIER_OFFSET); + + spi_master_put(xspi->bitbang.master); return 0; } diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 978dda2c5239..9e039c60c068 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -553,6 +553,10 @@ static void spi_pump_messages(struct kthread_work *work) master->unprepare_transfer_hardware(master)) dev_err(&master->dev, "failed to unprepare transfer hardware\n"); + if (master->auto_runtime_pm) { + pm_runtime_mark_last_busy(master->dev.parent); + pm_runtime_put_autosuspend(master->dev.parent); + } return; } @@ -572,11 +576,23 @@ static void spi_pump_messages(struct kthread_work *work) master->busy = true; spin_unlock_irqrestore(&master->queue_lock, flags); + if (!was_busy && master->auto_runtime_pm) { + ret = pm_runtime_get_sync(master->dev.parent); + if (ret < 0) { + dev_err(&master->dev, "Failed to power device: %d\n", + ret); + return; + } + } + if (!was_busy && master->prepare_transfer_hardware) { ret = master->prepare_transfer_hardware(master); if (ret) { dev_err(&master->dev, "failed to prepare transfer hardware\n"); + + if (master->auto_runtime_pm) + pm_runtime_put(master->dev.parent); return; } } @@ -774,7 +790,7 @@ static int spi_queued_transfer(struct spi_device *spi, struct spi_message *msg) msg->status = -EINPROGRESS; list_add_tail(&msg->queue, &master->queue); - if (master->running && !master->busy) + if (!master->busy) queue_kthread_work(&master->kworker, &master->pump_messages); spin_unlock_irqrestore(&master->queue_lock, flags); @@ -869,6 +885,47 @@ static void of_register_spi_devices(struct spi_master *master) if (of_find_property(nc, "spi-3wire", NULL)) spi->mode |= SPI_3WIRE; + /* Device DUAL/QUAD mode */ + prop = of_get_property(nc, "spi-tx-bus-width", &len); + if (prop && len == sizeof(*prop)) { + switch (be32_to_cpup(prop)) { + case SPI_NBITS_SINGLE: + break; + case SPI_NBITS_DUAL: + spi->mode |= SPI_TX_DUAL; + break; + case SPI_NBITS_QUAD: + spi->mode |= SPI_TX_QUAD; + break; + default: + dev_err(&master->dev, + "spi-tx-bus-width %d not supported\n", + be32_to_cpup(prop)); + spi_dev_put(spi); + continue; + } + } + + prop = of_get_property(nc, "spi-rx-bus-width", &len); + if (prop && len == sizeof(*prop)) { + switch (be32_to_cpup(prop)) { + case SPI_NBITS_SINGLE: + break; + case SPI_NBITS_DUAL: + spi->mode |= SPI_RX_DUAL; + break; + case SPI_NBITS_QUAD: + spi->mode |= SPI_RX_QUAD; + break; + default: + dev_err(&master->dev, + "spi-rx-bus-width %d not supported\n", + be32_to_cpup(prop)); + spi_dev_put(spi); + continue; + } + } + /* Device speed */ prop = of_get_property(nc, "spi-max-frequency", &len); if (!prop || len < sizeof(*prop)) { @@ -1169,7 +1226,7 @@ int spi_register_master(struct spi_master *master) else { status = spi_master_initialize_queue(master); if (status) { - device_unregister(&master->dev); + device_del(&master->dev); goto done; } } @@ -1316,6 +1373,19 @@ int spi_setup(struct spi_device *spi) unsigned bad_bits; int status = 0; + /* check mode to prevent that DUAL and QUAD set at the same time + */ + if (((spi->mode & SPI_TX_DUAL) && (spi->mode & SPI_TX_QUAD)) || + ((spi->mode & SPI_RX_DUAL) && (spi->mode & SPI_RX_QUAD))) { + dev_err(&spi->dev, + "setup: can not select dual and quad at the same time\n"); + return -EINVAL; + } + /* if it is SPI_3WIRE mode, DUAL and QUAD should be forbidden + */ + if ((spi->mode & SPI_3WIRE) && (spi->mode & + (SPI_TX_DUAL | SPI_TX_QUAD | SPI_RX_DUAL | SPI_RX_QUAD))) + return -EINVAL; /* help drivers fail *cleanly* when they need options * that aren't supported with their current master */ @@ -1351,6 +1421,11 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message) struct spi_master *master = spi->master; struct spi_transfer *xfer; + if (list_empty(&message->transfers)) + return -EINVAL; + if (!message->complete) + return -EINVAL; + /* Half-duplex links include original MicroWire, and ones with * only one data pin like SPI_3WIRE (switches direction) or where * either MOSI or MISO is missing. They can also be caused by @@ -1373,12 +1448,20 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message) /** * Set transfer bits_per_word and max speed as spi device default if * it is not set for this transfer. + * Set transfer tx_nbits and rx_nbits as single transfer default + * (SPI_NBITS_SINGLE) if it is not set for this transfer. */ list_for_each_entry(xfer, &message->transfers, transfer_list) { + message->frame_length += xfer->len; if (!xfer->bits_per_word) xfer->bits_per_word = spi->bits_per_word; - if (!xfer->speed_hz) + if (!xfer->speed_hz) { xfer->speed_hz = spi->max_speed_hz; + if (master->max_speed_hz && + xfer->speed_hz > master->max_speed_hz) + xfer->speed_hz = master->max_speed_hz; + } + if (master->bits_per_word_mask) { /* Only 32 bits fit in the mask */ if (xfer->bits_per_word > 32) @@ -1387,6 +1470,54 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message) BIT(xfer->bits_per_word - 1))) return -EINVAL; } + + if (xfer->speed_hz && master->min_speed_hz && + xfer->speed_hz < master->min_speed_hz) + return -EINVAL; + if (xfer->speed_hz && master->max_speed_hz && + xfer->speed_hz > master->max_speed_hz) + return -EINVAL; + + if (xfer->tx_buf && !xfer->tx_nbits) + xfer->tx_nbits = SPI_NBITS_SINGLE; + if (xfer->rx_buf && !xfer->rx_nbits) + xfer->rx_nbits = SPI_NBITS_SINGLE; + /* check transfer tx/rx_nbits: + * 1. keep the value is not out of single, dual and quad + * 2. keep tx/rx_nbits is contained by mode in spi_device + * 3. if SPI_3WIRE, tx/rx_nbits should be in single + */ + if (xfer->tx_buf) { + if (xfer->tx_nbits != SPI_NBITS_SINGLE && + xfer->tx_nbits != SPI_NBITS_DUAL && + xfer->tx_nbits != SPI_NBITS_QUAD) + return -EINVAL; + if ((xfer->tx_nbits == SPI_NBITS_DUAL) && + !(spi->mode & (SPI_TX_DUAL | SPI_TX_QUAD))) + return -EINVAL; + if ((xfer->tx_nbits == SPI_NBITS_QUAD) && + !(spi->mode & SPI_TX_QUAD)) + return -EINVAL; + if ((spi->mode & SPI_3WIRE) && + (xfer->tx_nbits != SPI_NBITS_SINGLE)) + return -EINVAL; + } + /* check transfer rx_nbits */ + if (xfer->rx_buf) { + if (xfer->rx_nbits != SPI_NBITS_SINGLE && + xfer->rx_nbits != SPI_NBITS_DUAL && + xfer->rx_nbits != SPI_NBITS_QUAD) + return -EINVAL; + if ((xfer->rx_nbits == SPI_NBITS_DUAL) && + !(spi->mode & (SPI_RX_DUAL | SPI_RX_QUAD))) + return -EINVAL; + if ((xfer->rx_nbits == SPI_NBITS_QUAD) && + !(spi->mode & SPI_RX_QUAD)) + return -EINVAL; + if ((spi->mode & SPI_3WIRE) && + (xfer->rx_nbits != SPI_NBITS_SINGLE)) + return -EINVAL; + } } message->spi = spi; diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index e25eba5713c1..b3b5125faa72 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -482,7 +482,7 @@ int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it) ret = comedi_device_postconfig(dev); if (ret < 0) { comedi_device_detach(dev); - module_put(dev->driver->module); + module_put(driv->module); } /* On success, the driver module count has been incremented. */ return ret; diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c index 3396eb9d57a3..ac2767100df5 100644 --- a/drivers/tty/hvc/hvsi_lib.c +++ b/drivers/tty/hvc/hvsi_lib.c @@ -341,8 +341,8 @@ void hvsilib_establish(struct hvsi_priv *pv) pr_devel("HVSI@%x: ... waiting handshake\n", pv->termno); - /* Try for up to 200s */ - for (timeout = 0; timeout < 20; timeout++) { + /* Try for up to 400ms */ + for (timeout = 0; timeout < 40; timeout++) { if (pv->established) goto established; if (!hvsi_get_packet(pv)) diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 73f62caa8609..2642b8a11e05 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -6,9 +6,26 @@ config USB_ARCH_HAS_OHCI bool +config USB_OHCI_BIG_ENDIAN_DESC + bool + +config USB_OHCI_BIG_ENDIAN_MMIO + bool + +config USB_OHCI_LITTLE_ENDIAN + bool + default n if STB03xxx || PPC_MPC52xx + default y + config USB_ARCH_HAS_EHCI bool +config USB_EHCI_BIG_ENDIAN_MMIO + bool + +config USB_EHCI_BIG_ENDIAN_DESC + bool + config USB_ARCH_HAS_XHCI bool diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 238c5d47cadb..70d7c5b92c3c 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -26,6 +26,7 @@ obj-$(CONFIG_USB_ISP1760_HCD) += host/ obj-$(CONFIG_USB_IMX21_HCD) += host/ obj-$(CONFIG_USB_FSL_MPH_DR_OF) += host/ obj-$(CONFIG_USB_FUSBH200_HCD) += host/ +obj-$(CONFIG_USB_FOTG210_HCD) += host/ obj-$(CONFIG_USB_C67X00_HCD) += c67x00/ @@ -45,7 +46,7 @@ obj-$(CONFIG_USB_MICROTEK) += image/ obj-$(CONFIG_USB_SERIAL) += serial/ obj-$(CONFIG_USB) += misc/ -obj-$(CONFIG_USB_PHY) += phy/ +obj-$(CONFIG_USB_SUPPORT) += phy/ obj-$(CONFIG_EARLY_PRINTK_DBGP) += early/ obj-$(CONFIG_USB_ATM) += atm/ diff --git a/drivers/usb/atm/Makefile b/drivers/usb/atm/Makefile index a5d792ec3ad5..ac278946b06c 100644 --- a/drivers/usb/atm/Makefile +++ b/drivers/usb/atm/Makefile @@ -1,9 +1,6 @@ # # Makefile for USB ATM/xDSL drivers # - -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG - obj-$(CONFIG_USB_CXACRU) += cxacru.o obj-$(CONFIG_USB_SPEEDTOUCH) += speedtch.o obj-$(CONFIG_USB_UEAGLEATM) += ueagle-atm.o diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 807627b36cc8..69461d653972 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -888,7 +888,7 @@ static int speedtch_bind(struct usbatm_data *usbatm, usb_fill_int_urb(instance->int_urb, usb_dev, usb_rcvintpipe(usb_dev, ENDPOINT_INT), instance->int_data, sizeof(instance->int_data), - speedtch_handle_int, instance, 50); + speedtch_handle_int, instance, 16); else usb_dbg(usbatm, "%s: no memory for interrupt urb!\n", __func__); diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 5e0d33a7da58..25a7bfcf666c 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -311,8 +311,6 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char int vci = ((source[1] & 0x0f) << 12) | (source[2] << 4) | (source[3] >> 4); u8 pti = ((source[3] & 0xe) >> 1); - vdbg(&instance->usb_intf->dev, "%s: vpi %hd, vci %d, pti %d", __func__, vpi, vci, pti); - if ((vci != instance->cached_vci) || (vpi != instance->cached_vpi)) { instance->cached_vpi = vpi; instance->cached_vci = vci; @@ -344,7 +342,6 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char __func__, sarb->len, vcc); /* discard cells already received */ skb_trim(sarb, 0); - UDSL_ASSERT(instance, sarb->tail + ATM_CELL_PAYLOAD <= sarb->end); } memcpy(skb_tail_pointer(sarb), source + ATM_CELL_HEADER, ATM_CELL_PAYLOAD); @@ -437,8 +434,6 @@ static void usbatm_extract_cells(struct usbatm_data *instance, unsigned char *cell_buf = instance->cell_buf; unsigned int space_left = stride - buf_usage; - UDSL_ASSERT(instance, buf_usage <= stride); - if (avail_data >= space_left) { /* add new data and process cell */ memcpy(cell_buf + buf_usage, source, space_left); @@ -479,10 +474,6 @@ static unsigned int usbatm_write_cells(struct usbatm_data *instance, unsigned int bytes_written; unsigned int stride = instance->tx_channel.stride; - vdbg(&instance->usb_intf->dev, "%s: skb->len=%d, avail_space=%u", - __func__, skb->len, avail_space); - UDSL_ASSERT(instance, !(avail_space % stride)); - for (bytes_written = 0; bytes_written < avail_space && ctrl->len; bytes_written += stride, target += stride) { unsigned int data_len = min_t(unsigned int, skb->len, ATM_CELL_PAYLOAD); @@ -553,8 +544,6 @@ static void usbatm_rx_process(unsigned long data) if (!urb->iso_frame_desc[i].status) { unsigned int actual_length = urb->iso_frame_desc[i].actual_length; - UDSL_ASSERT(instance, actual_length <= packet_size); - if (!merge_length) merge_start = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset; merge_length += actual_length; @@ -645,7 +634,6 @@ static void usbatm_cancel_send(struct usbatm_data *instance, { struct sk_buff *skb, *n; - atm_dbg(instance, "%s entered\n", __func__); spin_lock_irq(&instance->sndqueue.lock); skb_queue_walk_safe(&instance->sndqueue, skb, n) { if (UDSL_SKB(skb)->atm.vcc == vcc) { @@ -663,7 +651,6 @@ static void usbatm_cancel_send(struct usbatm_data *instance, usbatm_pop(vcc, skb); } tasklet_enable(&instance->tx_channel.tasklet); - atm_dbg(instance, "%s done\n", __func__); } static int usbatm_atm_send(struct atm_vcc *vcc, struct sk_buff *skb) @@ -674,16 +661,13 @@ static int usbatm_atm_send(struct atm_vcc *vcc, struct sk_buff *skb) /* racy disconnection check - fine */ if (!instance || instance->disconnected) { -#ifdef DEBUG +#ifdef VERBOSE_DEBUG printk_ratelimited(KERN_DEBUG "%s: %s!\n", __func__, instance ? "disconnected" : "NULL instance"); #endif err = -ENODEV; goto fail; } - vdbg(&instance->usb_intf->dev, "%s called (skb 0x%p, len %u)", __func__, - skb, skb->len); - if (vcc->qos.aal != ATM_AAL5) { atm_rldbg(instance, "%s: unsupported ATM type %d!\n", __func__, vcc->qos.aal); err = -EINVAL; @@ -723,8 +707,6 @@ static void usbatm_destroy_instance(struct kref *kref) { struct usbatm_data *instance = container_of(kref, struct usbatm_data, refcount); - usb_dbg(instance, "%s\n", __func__); - tasklet_kill(&instance->rx_channel.tasklet); tasklet_kill(&instance->tx_channel.tasklet); usb_put_dev(instance->usb_dev); @@ -733,15 +715,11 @@ static void usbatm_destroy_instance(struct kref *kref) static void usbatm_get_instance(struct usbatm_data *instance) { - usb_dbg(instance, "%s\n", __func__); - kref_get(&instance->refcount); } static void usbatm_put_instance(struct usbatm_data *instance) { - usb_dbg(instance, "%s\n", __func__); - kref_put(&instance->refcount, usbatm_destroy_instance); } @@ -757,7 +735,6 @@ static void usbatm_atm_dev_close(struct atm_dev *atm_dev) if (!instance) return; - usb_dbg(instance, "%s\n", __func__); atm_dev->dev_data = NULL; /* catch bugs */ usbatm_put_instance(instance); /* taken in usbatm_atm_init */ } @@ -813,8 +790,6 @@ static int usbatm_atm_open(struct atm_vcc *vcc) if (!instance) return -ENODEV; - atm_dbg(instance, "%s: vpi %hd, vci %d\n", __func__, vpi, vci); - /* only support AAL5 */ if ((vcc->qos.aal != ATM_AAL5)) { atm_warn(instance, "%s: unsupported ATM type %d!\n", __func__, vcc->qos.aal); @@ -891,11 +866,6 @@ static void usbatm_atm_close(struct atm_vcc *vcc) if (!instance || !vcc_data) return; - atm_dbg(instance, "%s entered\n", __func__); - - atm_dbg(instance, "%s: deallocating vcc 0x%p with vpi %d vci %d\n", - __func__, vcc_data, vcc_data->vpi, vcc_data->vci); - usbatm_cancel_send(instance, vcc); mutex_lock(&instance->serialize); /* vs self, usbatm_atm_open, usbatm_usb_disconnect */ @@ -922,8 +892,6 @@ static void usbatm_atm_close(struct atm_vcc *vcc) clear_bit(ATM_VF_ADDR, &vcc->flags); mutex_unlock(&instance->serialize); - - atm_dbg(instance, "%s successful\n", __func__); } static int usbatm_atm_ioctl(struct atm_dev *atm_dev, unsigned int cmd, @@ -1060,12 +1028,6 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, int i, length; unsigned int maxpacket, num_packets; - dev_dbg(dev, "%s: trying driver %s with vendor=%04x, product=%04x, ifnum %2d\n", - __func__, driver->driver_name, - le16_to_cpu(usb_dev->descriptor.idVendor), - le16_to_cpu(usb_dev->descriptor.idProduct), - intf->altsetting->desc.bInterfaceNumber); - /* instance init */ instance = kzalloc(sizeof(*instance) + sizeof(struct urb *) * (num_rcv_urbs + num_snd_urbs), GFP_KERNEL); if (!instance) { @@ -1158,14 +1120,13 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, instance->rx_channel.buf_size = num_packets * maxpacket; instance->rx_channel.packet_size = maxpacket; -#ifdef DEBUG for (i = 0; i < 2; i++) { struct usbatm_channel *channel = i ? &instance->tx_channel : &instance->rx_channel; - dev_dbg(dev, "%s: using %d byte buffer for %s channel 0x%p\n", __func__, channel->buf_size, i ? "tx" : "rx", channel); + dev_dbg(dev, "%s: using %d byte buffer for %s channel 0x%p\n", + __func__, channel->buf_size, i ? "tx" : "rx", channel); } -#endif /* initialize urbs */ @@ -1176,8 +1137,6 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, struct urb *urb; unsigned int iso_packets = usb_pipeisoc(channel->endpoint) ? channel->buf_size / channel->packet_size : 0; - UDSL_ASSERT(instance, !usb_pipeisoc(channel->endpoint) || usb_pipein(channel->endpoint)); - urb = usb_alloc_urb(iso_packets, GFP_KERNEL); if (!urb) { dev_err(dev, "%s: no memory for urb %d!\n", __func__, i); @@ -1266,8 +1225,6 @@ void usbatm_usb_disconnect(struct usb_interface *intf) struct usbatm_vcc_data *vcc_data; int i; - dev_dbg(dev, "%s entered\n", __func__); - if (!instance) { dev_dbg(dev, "%s: NULL instance!\n", __func__); return; diff --git a/drivers/usb/atm/usbatm.h b/drivers/usb/atm/usbatm.h index 5fc489405217..5651231a7437 100644 --- a/drivers/usb/atm/usbatm.h +++ b/drivers/usb/atm/usbatm.h @@ -39,31 +39,14 @@ #define VERBOSE_DEBUG */ -#ifdef DEBUG -#define UDSL_ASSERT(instance, x) BUG_ON(!(x)) -#else -#define UDSL_ASSERT(instance, x) \ - do { \ - if (!(x)) \ - dev_warn(&(instance)->usb_intf->dev, \ - "failed assertion '%s' at line %d", \ - __stringify(x), __LINE__); \ - } while (0) -#endif - #define usb_err(instance, format, arg...) \ dev_err(&(instance)->usb_intf->dev , format , ## arg) #define usb_info(instance, format, arg...) \ dev_info(&(instance)->usb_intf->dev , format , ## arg) #define usb_warn(instance, format, arg...) \ dev_warn(&(instance)->usb_intf->dev , format , ## arg) -#ifdef DEBUG -#define usb_dbg(instance, format, arg...) \ - dev_printk(KERN_DEBUG , &(instance)->usb_intf->dev , format , ## arg) -#else #define usb_dbg(instance, format, arg...) \ - do {} while (0) -#endif + dev_dbg(&(instance)->usb_intf->dev , format , ## arg) /* FIXME: move to dev_* once ATM is driver model aware */ #define atm_printk(level, instance, format, arg...) \ @@ -76,18 +59,12 @@ atm_printk(KERN_INFO, instance , format , ## arg) #define atm_warn(instance, format, arg...) \ atm_printk(KERN_WARNING, instance , format , ## arg) -#ifdef DEBUG -#define atm_dbg(instance, format, arg...) \ - atm_printk(KERN_DEBUG, instance , format , ## arg) -#define atm_rldbg(instance, format, arg...) \ +#define atm_dbg(instance, format, arg...) \ + dynamic_pr_debug("ATM dev %d: " format , \ + (instance)->atm_dev->number , ## arg) +#define atm_rldbg(instance, format, arg...) \ if (printk_ratelimit()) \ - atm_printk(KERN_DEBUG, instance , format , ## arg) -#else -#define atm_dbg(instance, format, arg...) \ - do {} while (0) -#define atm_rldbg(instance, format, arg...) \ - do {} while (0) -#endif + atm_dbg(instance , format , ## arg) /* flags, set by mini-driver in bind() */ diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c index fe815ecd557e..8db3380c3329 100644 --- a/drivers/usb/c67x00/c67x00-drv.c +++ b/drivers/usb/c67x00/c67x00-drv.c @@ -131,7 +131,7 @@ static int c67x00_drv_probe(struct platform_device *pdev) if (!res2) return -ENODEV; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (!pdata) return -ENODEV; @@ -154,7 +154,7 @@ static int c67x00_drv_probe(struct platform_device *pdev) spin_lock_init(&c67x00->hpi.lock); c67x00->hpi.regstep = pdata->hpi_regstep; - c67x00->pdata = pdev->dev.platform_data; + c67x00->pdata = dev_get_platdata(&pdev->dev); c67x00->pdev = pdev; c67x00_ll_init(c67x00); diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig index d1bd8ef1f9c1..4a851e15e58c 100644 --- a/drivers/usb/chipidea/Kconfig +++ b/drivers/usb/chipidea/Kconfig @@ -1,6 +1,6 @@ config USB_CHIPIDEA tristate "ChipIdea Highspeed Dual Role Controller" - depends on USB || USB_GADGET + depends on (USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET) help Say Y here if your system has a dual role high speed USB controller based on ChipIdea silicon IP. Currently, only the @@ -12,15 +12,14 @@ if USB_CHIPIDEA config USB_CHIPIDEA_UDC bool "ChipIdea device controller" - depends on USB_GADGET=y || (USB_CHIPIDEA=m && USB_GADGET=m) + depends on USB_GADGET help Say Y here to enable device controller functionality of the ChipIdea driver. config USB_CHIPIDEA_HOST bool "ChipIdea host controller" - depends on USB=y - depends on USB_EHCI_HCD=y || (USB_CHIPIDEA=m && USB_EHCI_HCD=m) + depends on USB_EHCI_HCD select USB_EHCI_ROOT_HUB_TT help Say Y here to enable host controller functionality of the diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile index 6cf5f68dedd8..a99d980454a6 100644 --- a/drivers/usb/chipidea/Makefile +++ b/drivers/usb/chipidea/Makefile @@ -2,7 +2,7 @@ ccflags-$(CONFIG_USB_CHIPIDEA_DEBUG) := -DDEBUG obj-$(CONFIG_USB_CHIPIDEA) += ci_hdrc.o -ci_hdrc-y := core.o +ci_hdrc-y := core.o otg.o ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC) += udc.o ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST) += host.o ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG) += debug.o diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h index 1b23e354f9fb..464584c6ccae 100644 --- a/drivers/usb/chipidea/bits.h +++ b/drivers/usb/chipidea/bits.h @@ -79,11 +79,21 @@ #define OTGSC_ASVIS BIT(18) #define OTGSC_BSVIS BIT(19) #define OTGSC_BSEIS BIT(20) +#define OTGSC_1MSIS BIT(21) +#define OTGSC_DPIS BIT(22) #define OTGSC_IDIE BIT(24) #define OTGSC_AVVIE BIT(25) #define OTGSC_ASVIE BIT(26) #define OTGSC_BSVIE BIT(27) #define OTGSC_BSEIE BIT(28) +#define OTGSC_1MSIE BIT(29) +#define OTGSC_DPIE BIT(30) +#define OTGSC_INT_EN_BITS (OTGSC_IDIE | OTGSC_AVVIE | OTGSC_ASVIE \ + | OTGSC_BSVIE | OTGSC_BSEIE | OTGSC_1MSIE \ + | OTGSC_DPIE) +#define OTGSC_INT_STATUS_BITS (OTGSC_IDIS | OTGSC_AVVIS | OTGSC_ASVIS \ + | OTGSC_BSVIS | OTGSC_BSEIS | OTGSC_1MSIS \ + | OTGSC_DPIS) /* USBMODE */ #define USBMODE_CM (0x03UL << 0) diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index 33cb29f36e06..1c94fc5257f4 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -132,6 +132,9 @@ struct hw_bank { * @transceiver: pointer to USB PHY, if any * @hcd: pointer to usb_hcd for ehci host driver * @debugfs: root dentry for this controller in debugfs + * @id_event: indicates there is an id event, and handled at ci_otg_work + * @b_sess_valid_event: indicates there is a vbus event, and handled + * at ci_otg_work */ struct ci_hdrc { struct device *dev; @@ -168,6 +171,8 @@ struct ci_hdrc { struct usb_phy *transceiver; struct usb_hcd *hcd; struct dentry *debugfs; + bool id_event; + bool b_sess_valid_event; }; static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci) @@ -303,4 +308,7 @@ int hw_port_test_set(struct ci_hdrc *ci, u8 mode); u8 hw_port_test_get(struct ci_hdrc *ci); +int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask, + u32 value, unsigned int timeout_ms); + #endif /* __DRIVERS_USB_CHIPIDEA_CI_H */ diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index 14362c00db3f..74d998d9b45b 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -19,70 +19,56 @@ #include <linux/dma-mapping.h> #include <linux/usb/chipidea.h> #include <linux/clk.h> -#include <linux/regulator/consumer.h> #include "ci.h" #include "ci_hdrc_imx.h" -#define pdev_to_phy(pdev) \ - ((struct usb_phy *)platform_get_drvdata(pdev)) - struct ci_hdrc_imx_data { struct usb_phy *phy; struct platform_device *ci_pdev; struct clk *clk; - struct regulator *reg_vbus; + struct imx_usbmisc_data *usbmisc_data; }; -static const struct usbmisc_ops *usbmisc_ops; - /* Common functions shared by usbmisc drivers */ -int usbmisc_set_ops(const struct usbmisc_ops *ops) -{ - if (usbmisc_ops) - return -EBUSY; - - usbmisc_ops = ops; - - return 0; -} -EXPORT_SYMBOL_GPL(usbmisc_set_ops); - -void usbmisc_unset_ops(const struct usbmisc_ops *ops) -{ - usbmisc_ops = NULL; -} -EXPORT_SYMBOL_GPL(usbmisc_unset_ops); - -int usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev) +static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev) { struct device_node *np = dev->of_node; struct of_phandle_args args; + struct imx_usbmisc_data *data; int ret; - usbdev->dev = dev; + /* + * In case the fsl,usbmisc property is not present this device doesn't + * need usbmisc. Return NULL (which is no error here) + */ + if (!of_get_property(np, "fsl,usbmisc", NULL)) + return NULL; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return ERR_PTR(-ENOMEM); ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells", 0, &args); if (ret) { dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n", ret); - memset(usbdev, 0, sizeof(*usbdev)); - return ret; + return ERR_PTR(ret); } - usbdev->index = args.args[0]; + + data->index = args.args[0]; of_node_put(args.np); if (of_find_property(np, "disable-over-current", NULL)) - usbdev->disable_oc = 1; + data->disable_oc = 1; if (of_find_property(np, "external-vbus-divider", NULL)) - usbdev->evdo = 1; + data->evdo = 1; - return 0; + return data; } -EXPORT_SYMBOL_GPL(usbmisc_get_init_data); /* End of common functions shared by usbmisc drivers*/ @@ -93,27 +79,19 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) .name = "ci_hdrc_imx", .capoffset = DEF_CAPOFFSET, .flags = CI_HDRC_REQUIRE_TRANSCEIVER | - CI_HDRC_PULLUP_ON_VBUS | CI_HDRC_DISABLE_STREAMING, }; - struct resource *res; int ret; - if (of_find_property(pdev->dev.of_node, "fsl,usbmisc", NULL) - && !usbmisc_ops) - return -EPROBE_DEFER; - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); if (!data) { dev_err(&pdev->dev, "Failed to allocate ci_hdrc-imx data!\n"); return -ENOMEM; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "Can't get device resources!\n"); - return -ENOENT; - } + data->usbmisc_data = usbmisc_get_init_data(&pdev->dev); + if (IS_ERR(data->usbmisc_data)) + return PTR_ERR(data->usbmisc_data); data->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(data->clk)) { @@ -141,20 +119,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) goto err_clk; } - /* we only support host now, so enable vbus here */ - data->reg_vbus = devm_regulator_get(&pdev->dev, "vbus"); - if (!IS_ERR(data->reg_vbus)) { - ret = regulator_enable(data->reg_vbus); - if (ret) { - dev_err(&pdev->dev, - "Failed to enable vbus regulator, err=%d\n", - ret); - goto err_clk; - } - } else { - data->reg_vbus = NULL; - } - pdata.phy = data->phy; if (!pdev->dev.dma_mask) @@ -162,12 +126,12 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) if (!pdev->dev.coherent_dma_mask) pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - if (usbmisc_ops && usbmisc_ops->init) { - ret = usbmisc_ops->init(&pdev->dev); + if (data->usbmisc_data) { + ret = imx_usbmisc_init(data->usbmisc_data); if (ret) { - dev_err(&pdev->dev, - "usbmisc init failed, ret=%d\n", ret); - goto err; + dev_err(&pdev->dev, "usbmisc init failed, ret=%d\n", + ret); + goto err_clk; } } @@ -179,14 +143,14 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Can't register ci_hdrc platform device, err=%d\n", ret); - goto err; + goto err_clk; } - if (usbmisc_ops && usbmisc_ops->post) { - ret = usbmisc_ops->post(&pdev->dev); + if (data->usbmisc_data) { + ret = imx_usbmisc_init_post(data->usbmisc_data); if (ret) { - dev_err(&pdev->dev, - "usbmisc post failed, ret=%d\n", ret); + dev_err(&pdev->dev, "usbmisc post failed, ret=%d\n", + ret); goto disable_device; } } @@ -200,9 +164,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) disable_device: ci_hdrc_remove_device(data->ci_pdev); -err: - if (data->reg_vbus) - regulator_disable(data->reg_vbus); err_clk: clk_disable_unprepare(data->clk); return ret; @@ -215,13 +176,8 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); ci_hdrc_remove_device(data->ci_pdev); - if (data->reg_vbus) - regulator_disable(data->reg_vbus); - - if (data->phy) { + if (data->phy) usb_phy_shutdown(data->phy); - module_put(data->phy->dev->driver->owner); - } clk_disable_unprepare(data->clk); diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h index 550bfa457620..c7271590dd0a 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.h +++ b/drivers/usb/chipidea/ci_hdrc_imx.h @@ -9,23 +9,12 @@ * http://www.gnu.org/copyleft/gpl.html */ -/* Used to set SoC specific callbacks */ -struct usbmisc_ops { - /* It's called once when probe a usb device */ - int (*init)(struct device *dev); - /* It's called once after adding a usb device */ - int (*post)(struct device *dev); -}; - -struct usbmisc_usb_device { - struct device *dev; /* usb controller device */ +struct imx_usbmisc_data { int index; unsigned int disable_oc:1; /* over current detect disabled */ unsigned int evdo:1; /* set external vbus divider option */ }; -int usbmisc_set_ops(const struct usbmisc_ops *ops); -void usbmisc_unset_ops(const struct usbmisc_ops *ops); -int -usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev); +int imx_usbmisc_init(struct imx_usbmisc_data *); +int imx_usbmisc_init_post(struct imx_usbmisc_data *); diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c index fb657ef50a9c..2d51d852b474 100644 --- a/drivers/usb/chipidea/ci_hdrc_msm.c +++ b/drivers/usb/chipidea/ci_hdrc_msm.c @@ -49,7 +49,6 @@ static struct ci_hdrc_platform_data ci_hdrc_msm_platdata = { .name = "ci_hdrc_msm", .flags = CI_HDRC_REGS_SHARED | CI_HDRC_REQUIRE_TRANSCEIVER | - CI_HDRC_PULLUP_ON_VBUS | CI_HDRC_DISABLE_STREAMING, .notify_event = ci_hdrc_msm_notify_event, diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index a5df24c578fc..94626409559a 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -65,12 +65,14 @@ #include <linux/usb/chipidea.h> #include <linux/usb/of.h> #include <linux/phy.h> +#include <linux/regulator/consumer.h> #include "ci.h" #include "udc.h" #include "bits.h" #include "host.h" #include "debug.h" +#include "otg.h" /* Controller register map */ static uintptr_t ci_regs_nolpm[] = { @@ -197,6 +199,12 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base) if (ci->hw_ep_max > ENDPT_MAX) return -ENODEV; + /* Disable all interrupts bits */ + hw_write(ci, OP_USBINTR, 0xffffffff, 0); + + /* Clear all interrupts status bits*/ + hw_write(ci, OP_USBSTS, 0xffffffff, 0xffffffff); + dev_dbg(ci->dev, "ChipIdea HDRC found, lpm: %d; cap: %p op: %p\n", ci->hw_bank.lpm, ci->hw_bank.cap, ci->hw_bank.op); @@ -264,8 +272,6 @@ int hw_device_reset(struct ci_hdrc *ci, u32 mode) while (hw_read(ci, OP_USBCMD, USBCMD_RST)) udelay(10); /* not RTOS friendly */ - hw_phymode_configure(ci); - if (ci->platdata->notify_event) ci->platdata->notify_event(ci, CI_HDRC_CONTROLLER_RESET_EVENT); @@ -289,37 +295,35 @@ int hw_device_reset(struct ci_hdrc *ci, u32 mode) } /** - * ci_otg_role - pick role based on ID pin state + * hw_wait_reg: wait the register value + * + * Sometimes, it needs to wait register value before going on. + * Eg, when switch to device mode, the vbus value should be lower + * than OTGSC_BSV before connects to host. + * * @ci: the controller + * @reg: register index + * @mask: mast bit + * @value: the bit value to wait + * @timeout_ms: timeout in millisecond + * + * This function returns an error code if timeout */ -static enum ci_role ci_otg_role(struct ci_hdrc *ci) -{ - u32 sts = hw_read(ci, OP_OTGSC, ~0); - enum ci_role role = sts & OTGSC_ID - ? CI_ROLE_GADGET - : CI_ROLE_HOST; - - return role; -} - -/** - * ci_role_work - perform role changing based on ID pin - * @work: work struct - */ -static void ci_role_work(struct work_struct *work) +int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask, + u32 value, unsigned int timeout_ms) { - struct ci_hdrc *ci = container_of(work, struct ci_hdrc, work); - enum ci_role role = ci_otg_role(ci); - - if (role != ci->role) { - dev_dbg(ci->dev, "switching from %s to %s\n", - ci_role(ci)->name, ci->roles[role]->name); - - ci_role_stop(ci); - ci_role_start(ci, role); + unsigned long elapse = jiffies + msecs_to_jiffies(timeout_ms); + + while (hw_read(ci, reg, mask) != value) { + if (time_after(jiffies, elapse)) { + dev_err(ci->dev, "timeout waiting for %08x in %d\n", + mask, reg); + return -ETIMEDOUT; + } + msleep(20); } - enable_irq(ci->irq); + return 0; } static irqreturn_t ci_irq(int irq, void *data) @@ -331,19 +335,55 @@ static irqreturn_t ci_irq(int irq, void *data) if (ci->is_otg) otgsc = hw_read(ci, OP_OTGSC, ~0); - if (ci->role != CI_ROLE_END) - ret = ci_role(ci)->irq(ci); + /* + * Handle id change interrupt, it indicates device/host function + * switch. + */ + if (ci->is_otg && (otgsc & OTGSC_IDIE) && (otgsc & OTGSC_IDIS)) { + ci->id_event = true; + ci_clear_otg_interrupt(ci, OTGSC_IDIS); + disable_irq_nosync(ci->irq); + queue_work(ci->wq, &ci->work); + return IRQ_HANDLED; + } - if (ci->is_otg && (otgsc & OTGSC_IDIS)) { - hw_write(ci, OP_OTGSC, OTGSC_IDIS, OTGSC_IDIS); + /* + * Handle vbus change interrupt, it indicates device connection + * and disconnection events. + */ + if (ci->is_otg && (otgsc & OTGSC_BSVIE) && (otgsc & OTGSC_BSVIS)) { + ci->b_sess_valid_event = true; + ci_clear_otg_interrupt(ci, OTGSC_BSVIS); disable_irq_nosync(ci->irq); queue_work(ci->wq, &ci->work); - ret = IRQ_HANDLED; + return IRQ_HANDLED; } + /* Handle device/host interrupt */ + if (ci->role != CI_ROLE_END) + ret = ci_role(ci)->irq(ci); + return ret; } +static int ci_get_platdata(struct device *dev, + struct ci_hdrc_platform_data *platdata) +{ + /* Get the vbus regulator */ + platdata->reg_vbus = devm_regulator_get(dev, "vbus"); + if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) { + return -EPROBE_DEFER; + } else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) { + platdata->reg_vbus = NULL; /* no vbus regualator is needed */ + } else if (IS_ERR(platdata->reg_vbus)) { + dev_err(dev, "Getting regulator error: %ld\n", + PTR_ERR(platdata->reg_vbus)); + return PTR_ERR(platdata->reg_vbus); + } + + return 0; +} + static DEFINE_IDA(ci_ida); struct platform_device *ci_hdrc_add_device(struct device *dev, @@ -353,6 +393,10 @@ struct platform_device *ci_hdrc_add_device(struct device *dev, struct platform_device *pdev; int id, ret; + ret = ci_get_platdata(dev, platdata); + if (ret) + return ERR_PTR(ret); + id = ida_simple_get(&ci_ida, 0, 0, GFP_KERNEL); if (id < 0) return ERR_PTR(id); @@ -398,6 +442,29 @@ void ci_hdrc_remove_device(struct platform_device *pdev) } EXPORT_SYMBOL_GPL(ci_hdrc_remove_device); +static inline void ci_role_destroy(struct ci_hdrc *ci) +{ + ci_hdrc_gadget_destroy(ci); + ci_hdrc_host_destroy(ci); + if (ci->is_otg) + ci_hdrc_otg_destroy(ci); +} + +static void ci_get_otg_capable(struct ci_hdrc *ci) +{ + if (ci->platdata->flags & CI_HDRC_DUAL_ROLE_NOT_OTG) + ci->is_otg = false; + else + ci->is_otg = (hw_read(ci, CAP_DCCPARAMS, + DCCPARAMS_DC | DCCPARAMS_HC) + == (DCCPARAMS_DC | DCCPARAMS_HC)); + if (ci->is_otg) { + dev_dbg(ci->dev, "It is OTG capable controller\n"); + ci_disable_otg_interrupt(ci, OTGSC_INT_EN_BITS); + ci_clear_otg_interrupt(ci, OTGSC_INT_STATUS_BITS); + } +} + static int ci_hdrc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -406,15 +473,13 @@ static int ci_hdrc_probe(struct platform_device *pdev) void __iomem *base; int ret; enum usb_dr_mode dr_mode; + struct device_node *of_node = dev->of_node ?: dev->parent->of_node; if (!dev->platform_data) { dev_err(dev, "platform data missing\n"); return -ENODEV; } - if (!dev->of_node && dev->parent) - dev->of_node = dev->parent->of_node; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); base = devm_ioremap_resource(dev, res); if (IS_ERR(base)) @@ -447,18 +512,15 @@ static int ci_hdrc_probe(struct platform_device *pdev) return -ENODEV; } - INIT_WORK(&ci->work, ci_role_work); - ci->wq = create_singlethread_workqueue("ci_otg"); - if (!ci->wq) { - dev_err(dev, "can't create workqueue\n"); - return -ENODEV; - } + ci_get_otg_capable(ci); if (!ci->platdata->phy_mode) - ci->platdata->phy_mode = of_usb_get_phy_mode(dev->of_node); + ci->platdata->phy_mode = of_usb_get_phy_mode(of_node); + + hw_phymode_configure(ci); if (!ci->platdata->dr_mode) - ci->platdata->dr_mode = of_usb_get_dr_mode(dev->of_node); + ci->platdata->dr_mode = of_usb_get_dr_mode(of_node); if (ci->platdata->dr_mode == USB_DR_MODE_UNKNOWN) ci->platdata->dr_mode = USB_DR_MODE_OTG; @@ -479,15 +541,34 @@ static int ci_hdrc_probe(struct platform_device *pdev) if (!ci->roles[CI_ROLE_HOST] && !ci->roles[CI_ROLE_GADGET]) { dev_err(dev, "no supported roles\n"); - ret = -ENODEV; - goto rm_wq; + return -ENODEV; + } + + if (ci->is_otg) { + ret = ci_hdrc_otg_init(ci); + if (ret) { + dev_err(dev, "init otg fails, ret = %d\n", ret); + goto stop; + } } if (ci->roles[CI_ROLE_HOST] && ci->roles[CI_ROLE_GADGET]) { - ci->is_otg = true; - /* ID pin needs 1ms debouce time, we delay 2ms for safe */ - mdelay(2); - ci->role = ci_otg_role(ci); + if (ci->is_otg) { + /* + * ID pin needs 1ms debouce time, + * we delay 2ms for safe. + */ + mdelay(2); + ci->role = ci_otg_role(ci); + ci_enable_otg_interrupt(ci, OTGSC_IDIE); + } else { + /* + * If the controller is not OTG capable, but support + * role switch, the defalt role is gadget, and the + * user can switch it through debugfs. + */ + ci->role = CI_ROLE_GADGET; + } } else { ci->role = ci->roles[CI_ROLE_HOST] ? CI_ROLE_HOST @@ -497,8 +578,7 @@ static int ci_hdrc_probe(struct platform_device *pdev) ret = ci_role_start(ci, ci->role); if (ret) { dev_err(dev, "can't start %s role\n", ci_role(ci)->name); - ret = -ENODEV; - goto rm_wq; + goto stop; } platform_set_drvdata(pdev, ci); @@ -507,19 +587,13 @@ static int ci_hdrc_probe(struct platform_device *pdev) if (ret) goto stop; - if (ci->is_otg) - hw_write(ci, OP_OTGSC, OTGSC_IDIE, OTGSC_IDIE); - ret = dbg_create_files(ci); if (!ret) return 0; free_irq(ci->irq, ci); stop: - ci_role_stop(ci); -rm_wq: - flush_workqueue(ci->wq); - destroy_workqueue(ci->wq); + ci_role_destroy(ci); return ret; } @@ -529,10 +603,8 @@ static int ci_hdrc_remove(struct platform_device *pdev) struct ci_hdrc *ci = platform_get_drvdata(pdev); dbg_remove_files(ci); - flush_workqueue(ci->wq); - destroy_workqueue(ci->wq); free_irq(ci->irq, ci); - ci_role_stop(ci); + ci_role_destroy(ci); return 0; } @@ -548,7 +620,6 @@ static struct platform_driver ci_hdrc_driver = { module_platform_driver(ci_hdrc_driver); MODULE_ALIAS("platform:ci_hdrc"); -MODULE_ALIAS("platform:ci13xxx"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("David Lopo <dlopo@chipidea.mips.com>"); MODULE_DESCRIPTION("ChipIdea HDRC Driver"); diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 40d0fda4f66c..6f96795dd20c 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -24,6 +24,7 @@ #include <linux/usb.h> #include <linux/usb/hcd.h> #include <linux/usb/chipidea.h> +#include <linux/regulator/consumer.h> #include "../host/ehci.h" @@ -63,10 +64,21 @@ static int host_start(struct ci_hdrc *ci) ehci = hcd_to_ehci(hcd); ehci->caps = ci->hw_bank.cap; ehci->has_hostpc = ci->hw_bank.lpm; + ehci->has_tdi_phy_lpm = ci->hw_bank.lpm; + + if (ci->platdata->reg_vbus) { + ret = regulator_enable(ci->platdata->reg_vbus); + if (ret) { + dev_err(ci->dev, + "Failed to enable vbus regulator, ret=%d\n", + ret); + goto put_hcd; + } + } ret = usb_add_hcd(hcd, 0, 0); if (ret) - usb_put_hcd(hcd); + goto disable_reg; else ci->hcd = hcd; @@ -74,6 +86,14 @@ static int host_start(struct ci_hdrc *ci) hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS); return ret; + +disable_reg: + regulator_disable(ci->platdata->reg_vbus); + +put_hcd: + usb_put_hcd(hcd); + + return ret; } static void host_stop(struct ci_hdrc *ci) @@ -82,6 +102,15 @@ static void host_stop(struct ci_hdrc *ci) usb_remove_hcd(hcd); usb_put_hcd(hcd); + if (ci->platdata->reg_vbus) + regulator_disable(ci->platdata->reg_vbus); +} + + +void ci_hdrc_host_destroy(struct ci_hdrc *ci) +{ + if (ci->role == CI_ROLE_HOST) + host_stop(ci); } int ci_hdrc_host_init(struct ci_hdrc *ci) diff --git a/drivers/usb/chipidea/host.h b/drivers/usb/chipidea/host.h index 058875c15333..5707bf379bfb 100644 --- a/drivers/usb/chipidea/host.h +++ b/drivers/usb/chipidea/host.h @@ -4,6 +4,7 @@ #ifdef CONFIG_USB_CHIPIDEA_HOST int ci_hdrc_host_init(struct ci_hdrc *ci); +void ci_hdrc_host_destroy(struct ci_hdrc *ci); #else @@ -12,6 +13,11 @@ static inline int ci_hdrc_host_init(struct ci_hdrc *ci) return -ENXIO; } +static inline void ci_hdrc_host_destroy(struct ci_hdrc *ci) +{ + +} + #endif #endif /* __DRIVERS_USB_CHIPIDEA_HOST_H */ diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c new file mode 100644 index 000000000000..39bd7ec8bf75 --- /dev/null +++ b/drivers/usb/chipidea/otg.c @@ -0,0 +1,120 @@ +/* + * otg.c - ChipIdea USB IP core OTG driver + * + * Copyright (C) 2013 Freescale Semiconductor, Inc. + * + * Author: Peter Chen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * This file mainly handles otgsc register, it may include OTG operation + * in the future. + */ + +#include <linux/usb/otg.h> +#include <linux/usb/gadget.h> +#include <linux/usb/chipidea.h> + +#include "ci.h" +#include "bits.h" +#include "otg.h" + +/** + * ci_otg_role - pick role based on ID pin state + * @ci: the controller + */ +enum ci_role ci_otg_role(struct ci_hdrc *ci) +{ + u32 sts = hw_read(ci, OP_OTGSC, ~0); + enum ci_role role = sts & OTGSC_ID + ? CI_ROLE_GADGET + : CI_ROLE_HOST; + + return role; +} + +void ci_handle_vbus_change(struct ci_hdrc *ci) +{ + u32 otgsc; + + if (!ci->is_otg) + return; + + otgsc = hw_read(ci, OP_OTGSC, ~0); + + if (otgsc & OTGSC_BSV) + usb_gadget_vbus_connect(&ci->gadget); + else + usb_gadget_vbus_disconnect(&ci->gadget); +} + +#define CI_VBUS_STABLE_TIMEOUT_MS 5000 +static void ci_handle_id_switch(struct ci_hdrc *ci) +{ + enum ci_role role = ci_otg_role(ci); + + if (role != ci->role) { + dev_dbg(ci->dev, "switching from %s to %s\n", + ci_role(ci)->name, ci->roles[role]->name); + + ci_role_stop(ci); + /* wait vbus lower than OTGSC_BSV */ + hw_wait_reg(ci, OP_OTGSC, OTGSC_BSV, 0, + CI_VBUS_STABLE_TIMEOUT_MS); + ci_role_start(ci, role); + } +} +/** + * ci_otg_work - perform otg (vbus/id) event handle + * @work: work struct + */ +static void ci_otg_work(struct work_struct *work) +{ + struct ci_hdrc *ci = container_of(work, struct ci_hdrc, work); + + if (ci->id_event) { + ci->id_event = false; + ci_handle_id_switch(ci); + } else if (ci->b_sess_valid_event) { + ci->b_sess_valid_event = false; + ci_handle_vbus_change(ci); + } else + dev_err(ci->dev, "unexpected event occurs at %s\n", __func__); + + enable_irq(ci->irq); +} + + +/** + * ci_hdrc_otg_init - initialize otg struct + * ci: the controller + */ +int ci_hdrc_otg_init(struct ci_hdrc *ci) +{ + INIT_WORK(&ci->work, ci_otg_work); + ci->wq = create_singlethread_workqueue("ci_otg"); + if (!ci->wq) { + dev_err(ci->dev, "can't create workqueue\n"); + return -ENODEV; + } + + return 0; +} + +/** + * ci_hdrc_otg_destroy - destroy otg struct + * ci: the controller + */ +void ci_hdrc_otg_destroy(struct ci_hdrc *ci) +{ + if (ci->wq) { + flush_workqueue(ci->wq); + destroy_workqueue(ci->wq); + } + ci_disable_otg_interrupt(ci, OTGSC_INT_EN_BITS); + ci_clear_otg_interrupt(ci, OTGSC_INT_STATUS_BITS); +} diff --git a/drivers/usb/chipidea/otg.h b/drivers/usb/chipidea/otg.h new file mode 100644 index 000000000000..2d9f090733bc --- /dev/null +++ b/drivers/usb/chipidea/otg.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2013 Freescale Semiconductor, Inc. + * + * Author: Peter Chen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __DRIVERS_USB_CHIPIDEA_OTG_H +#define __DRIVERS_USB_CHIPIDEA_OTG_H + +static inline void ci_clear_otg_interrupt(struct ci_hdrc *ci, u32 bits) +{ + /* Only clear request bits */ + hw_write(ci, OP_OTGSC, OTGSC_INT_STATUS_BITS, bits); +} + +static inline void ci_enable_otg_interrupt(struct ci_hdrc *ci, u32 bits) +{ + hw_write(ci, OP_OTGSC, bits, bits); +} + +static inline void ci_disable_otg_interrupt(struct ci_hdrc *ci, u32 bits) +{ + hw_write(ci, OP_OTGSC, bits, 0); +} + +int ci_hdrc_otg_init(struct ci_hdrc *ci); +void ci_hdrc_otg_destroy(struct ci_hdrc *ci); +enum ci_role ci_otg_role(struct ci_hdrc *ci); +void ci_handle_vbus_change(struct ci_hdrc *ci); + +#endif /* __DRIVERS_USB_CHIPIDEA_OTG_H */ diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index e475fcda1d68..6b4c2f2eb946 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -27,6 +27,7 @@ #include "udc.h" #include "bits.h" #include "debug.h" +#include "otg.h" /* control endpoint description */ static const struct usb_endpoint_descriptor @@ -84,8 +85,10 @@ static int hw_device_state(struct ci_hdrc *ci, u32 dma) /* interrupt, error, port change, reset, sleep/suspend */ hw_write(ci, OP_USBINTR, ~0, USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI); + hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); } else { hw_write(ci, OP_USBINTR, ~0, 0); + hw_write(ci, OP_USBCMD, USBCMD_RS, 0); } return 0; } @@ -1445,9 +1448,6 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active) unsigned long flags; int gadget_ready = 0; - if (!(ci->platdata->flags & CI_HDRC_PULLUP_ON_VBUS)) - return -EOPNOTSUPP; - spin_lock_irqsave(&ci->lock, flags); ci->vbus_active = is_active; if (ci->driver) @@ -1459,6 +1459,7 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active) pm_runtime_get_sync(&_gadget->dev); hw_device_reset(ci, USBMODE_CM_DC); hw_device_state(ci, ci->ep0out->qh.dma); + dev_dbg(ci->dev, "Connected to host\n"); } else { hw_device_state(ci, 0); if (ci->platdata->notify_event) @@ -1466,6 +1467,7 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active) CI_HDRC_CONTROLLER_STOPPED_EVENT); _gadget_stop_activity(&ci->gadget); pm_runtime_put_sync(&_gadget->dev); + dev_dbg(ci->dev, "Disconnected from host\n"); } } @@ -1509,6 +1511,9 @@ static int ci_udc_pullup(struct usb_gadget *_gadget, int is_on) { struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget); + if (!ci->vbus_active) + return -EOPNOTSUPP; + if (is_on) hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); else @@ -1630,14 +1635,11 @@ static int ci_udc_start(struct usb_gadget *gadget, ci->driver = driver; pm_runtime_get_sync(&ci->gadget.dev); - if (ci->platdata->flags & CI_HDRC_PULLUP_ON_VBUS) { - if (ci->vbus_active) { - if (ci->platdata->flags & CI_HDRC_REGS_SHARED) - hw_device_reset(ci, USBMODE_CM_DC); - } else { - pm_runtime_put_sync(&ci->gadget.dev); - goto done; - } + if (ci->vbus_active) { + hw_device_reset(ci, USBMODE_CM_DC); + } else { + pm_runtime_put_sync(&ci->gadget.dev); + goto done; } retval = hw_device_state(ci, ci->ep0out->qh.dma); @@ -1660,8 +1662,7 @@ static int ci_udc_stop(struct usb_gadget *gadget, spin_lock_irqsave(&ci->lock, flags); - if (!(ci->platdata->flags & CI_HDRC_PULLUP_ON_VBUS) || - ci->vbus_active) { + if (ci->vbus_active) { hw_device_state(ci, 0); if (ci->platdata->notify_event) ci->platdata->notify_event(ci, @@ -1796,16 +1797,15 @@ static int udc_start(struct ci_hdrc *ci) } } - if (!(ci->platdata->flags & CI_HDRC_REGS_SHARED)) { - retval = hw_device_reset(ci, USBMODE_CM_DC); - if (retval) - goto put_transceiver; - } - if (ci->transceiver) { retval = otg_set_peripheral(ci->transceiver->otg, &ci->gadget); - if (retval) + /* + * If we implement all USB functions using chipidea drivers, + * it doesn't need to call above API, meanwhile, if we only + * use gadget function, calling above API is useless. + */ + if (retval && retval != -ENOTSUPP) goto put_transceiver; } @@ -1816,6 +1816,9 @@ static int udc_start(struct ci_hdrc *ci) pm_runtime_no_callbacks(&ci->gadget.dev); pm_runtime_enable(&ci->gadget.dev); + /* Update ci->vbus_active */ + ci_handle_vbus_change(ci); + return retval; remove_trans: @@ -1839,13 +1842,13 @@ free_qh_pool: } /** - * udc_remove: parent remove must call this to remove UDC + * ci_hdrc_gadget_destroy: parent remove must call this to remove UDC * * No interrupts active, the IRQ has been released */ -static void udc_stop(struct ci_hdrc *ci) +void ci_hdrc_gadget_destroy(struct ci_hdrc *ci) { - if (ci == NULL) + if (!ci->roles[CI_ROLE_GADGET]) return; usb_del_gadget_udc(&ci->gadget); @@ -1860,15 +1863,32 @@ static void udc_stop(struct ci_hdrc *ci) if (ci->global_phy) usb_put_phy(ci->transceiver); } - /* my kobject is dynamic, I swear! */ - memset(&ci->gadget, 0, sizeof(ci->gadget)); +} + +static int udc_id_switch_for_device(struct ci_hdrc *ci) +{ + if (ci->is_otg) { + ci_clear_otg_interrupt(ci, OTGSC_BSVIS); + ci_enable_otg_interrupt(ci, OTGSC_BSVIE); + } + + return 0; +} + +static void udc_id_switch_for_host(struct ci_hdrc *ci) +{ + if (ci->is_otg) { + /* host doesn't care B_SESSION_VALID event */ + ci_clear_otg_interrupt(ci, OTGSC_BSVIS); + ci_disable_otg_interrupt(ci, OTGSC_BSVIE); + } } /** * ci_hdrc_gadget_init - initialize device related bits * ci: the controller * - * This function enables the gadget role, if the device is "device capable". + * This function initializes the gadget, if the device is "device capable". */ int ci_hdrc_gadget_init(struct ci_hdrc *ci) { @@ -1881,11 +1901,11 @@ int ci_hdrc_gadget_init(struct ci_hdrc *ci) if (!rdrv) return -ENOMEM; - rdrv->start = udc_start; - rdrv->stop = udc_stop; + rdrv->start = udc_id_switch_for_device; + rdrv->stop = udc_id_switch_for_host; rdrv->irq = udc_irq; rdrv->name = "gadget"; ci->roles[CI_ROLE_GADGET] = rdrv; - return 0; + return udc_start(ci); } diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h index 455ac2169226..e66df0020bd4 100644 --- a/drivers/usb/chipidea/udc.h +++ b/drivers/usb/chipidea/udc.h @@ -84,6 +84,7 @@ struct ci_hw_req { #ifdef CONFIG_USB_CHIPIDEA_UDC int ci_hdrc_gadget_init(struct ci_hdrc *ci); +void ci_hdrc_gadget_destroy(struct ci_hdrc *ci); #else @@ -92,6 +93,11 @@ static inline int ci_hdrc_gadget_init(struct ci_hdrc *ci) return -ENXIO; } +static inline void ci_hdrc_gadget_destroy(struct ci_hdrc *ci) +{ + +} + #endif #endif /* __DRIVERS_USB_CHIPIDEA_UDC_H */ diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index ac5a46155200..8a1094b1182f 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -18,8 +18,6 @@ #include "ci_hdrc_imx.h" -#define USB_DEV_MAX 4 - #define MX25_USB_PHY_CTRL_OFFSET 0x08 #define MX25_BM_EXTERNAL_VBUS_DIVIDER BIT(23) @@ -32,51 +30,34 @@ #define MX6_BM_OVER_CUR_DIS BIT(7) +struct usbmisc_ops { + /* It's called once when probe a usb device */ + int (*init)(struct imx_usbmisc_data *data); + /* It's called once after adding a usb device */ + int (*post)(struct imx_usbmisc_data *data); +}; + struct imx_usbmisc { void __iomem *base; spinlock_t lock; struct clk *clk; - struct usbmisc_usb_device usbdev[USB_DEV_MAX]; const struct usbmisc_ops *ops; }; static struct imx_usbmisc *usbmisc; -static struct usbmisc_usb_device *get_usbdev(struct device *dev) -{ - int i, ret; - - for (i = 0; i < USB_DEV_MAX; i++) { - if (usbmisc->usbdev[i].dev == dev) - return &usbmisc->usbdev[i]; - else if (!usbmisc->usbdev[i].dev) - break; - } - - if (i >= USB_DEV_MAX) - return ERR_PTR(-EBUSY); - - ret = usbmisc_get_init_data(dev, &usbmisc->usbdev[i]); - if (ret) - return ERR_PTR(ret); - - return &usbmisc->usbdev[i]; -} - -static int usbmisc_imx25_post(struct device *dev) +static int usbmisc_imx25_post(struct imx_usbmisc_data *data) { - struct usbmisc_usb_device *usbdev; void __iomem *reg; unsigned long flags; u32 val; - usbdev = get_usbdev(dev); - if (IS_ERR(usbdev)) - return PTR_ERR(usbdev); + if (data->index > 2) + return -EINVAL; reg = usbmisc->base + MX25_USB_PHY_CTRL_OFFSET; - if (usbdev->evdo) { + if (data->evdo) { spin_lock_irqsave(&usbmisc->lock, flags); val = readl(reg); writel(val | MX25_BM_EXTERNAL_VBUS_DIVIDER, reg); @@ -87,20 +68,18 @@ static int usbmisc_imx25_post(struct device *dev) return 0; } -static int usbmisc_imx53_init(struct device *dev) +static int usbmisc_imx53_init(struct imx_usbmisc_data *data) { - struct usbmisc_usb_device *usbdev; void __iomem *reg = NULL; unsigned long flags; u32 val = 0; - usbdev = get_usbdev(dev); - if (IS_ERR(usbdev)) - return PTR_ERR(usbdev); + if (data->index > 3) + return -EINVAL; - if (usbdev->disable_oc) { + if (data->disable_oc) { spin_lock_irqsave(&usbmisc->lock, flags); - switch (usbdev->index) { + switch (data->index) { case 0: reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET; val = readl(reg) | MX53_BM_OVER_CUR_DIS_OTG; @@ -126,22 +105,19 @@ static int usbmisc_imx53_init(struct device *dev) return 0; } -static int usbmisc_imx6q_init(struct device *dev) +static int usbmisc_imx6q_init(struct imx_usbmisc_data *data) { - - struct usbmisc_usb_device *usbdev; unsigned long flags; u32 reg; - usbdev = get_usbdev(dev); - if (IS_ERR(usbdev)) - return PTR_ERR(usbdev); + if (data->index > 3) + return -EINVAL; - if (usbdev->disable_oc) { + if (data->disable_oc) { spin_lock_irqsave(&usbmisc->lock, flags); - reg = readl(usbmisc->base + usbdev->index * 4); + reg = readl(usbmisc->base + data->index * 4); writel(reg | MX6_BM_OVER_CUR_DIS, - usbmisc->base + usbdev->index * 4); + usbmisc->base + data->index * 4); spin_unlock_irqrestore(&usbmisc->lock, flags); } @@ -160,6 +136,26 @@ static const struct usbmisc_ops imx6q_usbmisc_ops = { .init = usbmisc_imx6q_init, }; +int imx_usbmisc_init(struct imx_usbmisc_data *data) +{ + if (!usbmisc) + return -EPROBE_DEFER; + if (!usbmisc->ops->init) + return 0; + return usbmisc->ops->init(data); +} +EXPORT_SYMBOL_GPL(imx_usbmisc_init); + +int imx_usbmisc_init_post(struct imx_usbmisc_data *data) +{ + if (!usbmisc) + return -EPROBE_DEFER; + if (!usbmisc->ops->post) + return 0; + return usbmisc->ops->post(data); +} +EXPORT_SYMBOL_GPL(imx_usbmisc_init_post); + static const struct of_device_id usbmisc_imx_dt_ids[] = { { .compatible = "fsl,imx25-usbmisc", @@ -216,19 +212,12 @@ static int usbmisc_imx_probe(struct platform_device *pdev) of_match_device(usbmisc_imx_dt_ids, &pdev->dev); data->ops = (const struct usbmisc_ops *)tmp_dev->data; usbmisc = data; - ret = usbmisc_set_ops(data->ops); - if (ret) { - usbmisc = NULL; - clk_disable_unprepare(data->clk); - return ret; - } return 0; } static int usbmisc_imx_remove(struct platform_device *pdev) { - usbmisc_unset_ops(usbmisc->ops); clk_disable_unprepare(usbmisc->clk); usbmisc = NULL; return 0; diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 9f49bfe4c6f4..3e7560f004f8 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1295,7 +1295,7 @@ skip_countries: usb_rcvintpipe(usb_dev, epctrl->bEndpointAddress), acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm, /* works around buggy devices */ - epctrl->bInterval ? epctrl->bInterval : 0xff); + epctrl->bInterval ? epctrl->bInterval : 16); acm->ctrlurb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; acm->ctrlurb->transfer_dma = acm->ctrl_dma; diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 8a230f0ef77c..d3318a0df8ee 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -209,6 +209,7 @@ skip_error: static void wdm_int_callback(struct urb *urb) { int rv = 0; + int responding; int status = urb->status; struct wdm_device *desc; struct usb_cdc_notification *dr; @@ -262,8 +263,8 @@ static void wdm_int_callback(struct urb *urb) spin_lock(&desc->iuspin); clear_bit(WDM_READ, &desc->flags); - set_bit(WDM_RESPONDING, &desc->flags); - if (!test_bit(WDM_DISCONNECTING, &desc->flags) + responding = test_and_set_bit(WDM_RESPONDING, &desc->flags); + if (!responding && !test_bit(WDM_DISCONNECTING, &desc->flags) && !test_bit(WDM_SUSPENDING, &desc->flags)) { rv = usb_submit_urb(desc->response, GFP_ATOMIC); dev_dbg(&desc->intf->dev, "%s: usb_submit_urb %d", @@ -685,16 +686,20 @@ static void wdm_rxwork(struct work_struct *work) { struct wdm_device *desc = container_of(work, struct wdm_device, rxwork); unsigned long flags; - int rv; + int rv = 0; + int responding; spin_lock_irqsave(&desc->iuspin, flags); if (test_bit(WDM_DISCONNECTING, &desc->flags)) { spin_unlock_irqrestore(&desc->iuspin, flags); } else { + responding = test_and_set_bit(WDM_RESPONDING, &desc->flags); spin_unlock_irqrestore(&desc->iuspin, flags); - rv = usb_submit_urb(desc->response, GFP_KERNEL); + if (!responding) + rv = usb_submit_urb(desc->response, GFP_KERNEL); if (rv < 0 && rv != -EPERM) { spin_lock_irqsave(&desc->iuspin, flags); + clear_bit(WDM_RESPONDING, &desc->flags); if (!test_bit(WDM_DISCONNECTING, &desc->flags)) schedule_work(&desc->rxwork); spin_unlock_irqrestore(&desc->iuspin, flags); diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 83b4ef4dfcf8..09de131ee0cb 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -19,6 +19,8 @@ * http://www.gnu.org/copyleft/gpl.html. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/init.h> #include <linux/module.h> #include <linux/kernel.h> @@ -119,7 +121,6 @@ static void usbtmc_delete(struct kref *kref) struct usbtmc_device_data *data = to_usbtmc_data(kref); usb_put_dev(data->usb_dev); - kfree(data); } static int usbtmc_open(struct inode *inode, struct file *filp) @@ -130,10 +131,8 @@ static int usbtmc_open(struct inode *inode, struct file *filp) intf = usb_find_interface(&usbtmc_driver, iminor(inode)); if (!intf) { - printk(KERN_ERR KBUILD_MODNAME - ": can not find device for minor %d", iminor(inode)); - retval = -ENODEV; - goto exit; + pr_err("can not find device for minor %d", iminor(inode)); + return -ENODEV; } data = usb_get_intfdata(intf); @@ -142,7 +141,6 @@ static int usbtmc_open(struct inode *inode, struct file *filp) /* Store pointer in file structure's private data field */ filp->private_data = data; -exit: return retval; } @@ -394,12 +392,12 @@ static int send_request_dev_dep_msg_in(struct usbtmc_device_data *data, size_t t */ buffer[0] = 2; buffer[1] = data->bTag; - buffer[2] = ~(data->bTag); + buffer[2] = ~data->bTag; buffer[3] = 0; /* Reserved */ - buffer[4] = (transfer_size) & 255; - buffer[5] = ((transfer_size) >> 8) & 255; - buffer[6] = ((transfer_size) >> 16) & 255; - buffer[7] = ((transfer_size) >> 24) & 255; + buffer[4] = transfer_size >> 0; + buffer[5] = transfer_size >> 8; + buffer[6] = transfer_size >> 16; + buffer[7] = transfer_size >> 24; buffer[8] = data->TermCharEnabled * 2; /* Use term character? */ buffer[9] = data->TermChar; @@ -418,7 +416,7 @@ static int send_request_dev_dep_msg_in(struct usbtmc_device_data *data, size_t t /* Increment bTag -- and increment again if zero */ data->bTag++; if (!data->bTag) - (data->bTag)++; + data->bTag++; if (retval < 0) { dev_err(&data->intf->dev, "usb_bulk_msg in send_request_dev_dep_msg_in() returned %d\n", retval); @@ -473,7 +471,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, done = 0; while (remaining > 0) { - if (!(data->rigol_quirk)) { + if (!data->rigol_quirk) { dev_dbg(dev, "usb_bulk_msg_in: remaining(%zu), count(%zu)\n", remaining, count); if (remaining > USBTMC_SIZE_IOBUFFER - USBTMC_HEADER_SIZE - 3) @@ -510,7 +508,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, } /* Parse header in first packet */ - if ((done == 0) || (!(data->rigol_quirk))) { + if ((done == 0) || !data->rigol_quirk) { /* Sanity checks for the header */ if (actual < USBTMC_HEADER_SIZE) { dev_err(dev, "Device sent too small first packet: %u < %u\n", actual, USBTMC_HEADER_SIZE); @@ -554,14 +552,14 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, if (remaining > n_characters) remaining = n_characters; /* Remove padding if it exists */ - if (actual > remaining) + if (actual > remaining) actual = remaining; } else { if (this_part > n_characters) this_part = n_characters; /* Remove padding if it exists */ - if (actual > this_part) + if (actual > this_part) actual = this_part; } @@ -570,7 +568,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, remaining -= actual; /* Terminate if end-of-message bit received from device */ - if ((buffer[8] & 0x01) && (actual >= n_characters)) + if ((buffer[8] & 0x01) && (actual >= n_characters)) remaining = 0; dev_dbg(dev, "Bulk-IN header: remaining(%zu), buf(%p), buffer(%p) done(%zu)\n", remaining,buf,buffer,done); @@ -585,7 +583,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, done += actual; } else { - if (actual > remaining) + if (actual > remaining) actual = remaining; remaining -= actual; @@ -651,12 +649,12 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf, /* Setup IO buffer for DEV_DEP_MSG_OUT message */ buffer[0] = 1; buffer[1] = data->bTag; - buffer[2] = ~(data->bTag); + buffer[2] = ~data->bTag; buffer[3] = 0; /* Reserved */ - buffer[4] = this_part & 255; - buffer[5] = (this_part >> 8) & 255; - buffer[6] = (this_part >> 16) & 255; - buffer[7] = (this_part >> 24) & 255; + buffer[4] = this_part >> 0; + buffer[5] = this_part >> 8; + buffer[6] = this_part >> 16; + buffer[7] = this_part >> 24; /* buffer[8] is set above... */ buffer[9] = 0; /* Reserved */ buffer[10] = 0; /* Reserved */ @@ -901,7 +899,7 @@ err_out: } #define capability_attribute(name) \ -static ssize_t show_##name(struct device *dev, \ +static ssize_t name##_show(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ @@ -909,7 +907,7 @@ static ssize_t show_##name(struct device *dev, \ \ return sprintf(buf, "%d\n", data->capabilities.name); \ } \ -static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) +static DEVICE_ATTR_RO(name) capability_attribute(interface_capabilities); capability_attribute(device_capabilities); @@ -928,7 +926,7 @@ static struct attribute_group capability_attr_grp = { .attrs = capability_attrs, }; -static ssize_t show_TermChar(struct device *dev, +static ssize_t TermChar_show(struct device *dev, struct device_attribute *attr, char *buf) { struct usb_interface *intf = to_usb_interface(dev); @@ -937,7 +935,7 @@ static ssize_t show_TermChar(struct device *dev, return sprintf(buf, "%c\n", data->TermChar); } -static ssize_t store_TermChar(struct device *dev, +static ssize_t TermChar_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -949,10 +947,10 @@ static ssize_t store_TermChar(struct device *dev, data->TermChar = buf[0]; return count; } -static DEVICE_ATTR(TermChar, S_IRUGO, show_TermChar, store_TermChar); +static DEVICE_ATTR_RW(TermChar); #define data_attribute(name) \ -static ssize_t show_##name(struct device *dev, \ +static ssize_t name##_show(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ @@ -960,7 +958,7 @@ static ssize_t show_##name(struct device *dev, \ \ return sprintf(buf, "%d\n", data->name); \ } \ -static ssize_t store_##name(struct device *dev, \ +static ssize_t name##_store(struct device *dev, \ struct device_attribute *attr, \ const char *buf, size_t count) \ { \ @@ -978,7 +976,7 @@ static ssize_t store_##name(struct device *dev, \ else \ return count; \ } \ -static DEVICE_ATTR(name, S_IRUGO, show_##name, store_##name) +static DEVICE_ATTR_RW(name) data_attribute(TermCharEnabled); data_attribute(auto_abort); @@ -1102,7 +1100,7 @@ static int usbtmc_probe(struct usb_interface *intf, dev_dbg(&intf->dev, "%s called\n", __func__); - data = kmalloc(sizeof(struct usbtmc_device_data), GFP_KERNEL); + data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); if (!data) { dev_err(&intf->dev, "Unable to allocate kernel memory\n"); return -ENOMEM; diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index b0585e623ba9..23559746be92 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -43,10 +43,11 @@ static const size_t pool_max[HCD_BUFFER_POOLS] = { * * Call this as part of initializing a host controller that uses the dma * memory allocators. It initializes some pools of dma-coherent memory that - * will be shared by all drivers using that controller, or returns a negative - * errno value on error. + * will be shared by all drivers using that controller. * * Call hcd_buffer_destroy() to clean up after using those pools. + * + * Return: 0 if successful. A negative errno value otherwise. */ int hcd_buffer_create(struct usb_hcd *hcd) { diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 7199adccf444..a6b2cabe7930 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -424,7 +424,8 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx, memcpy(&config->desc, buffer, USB_DT_CONFIG_SIZE); if (config->desc.bDescriptorType != USB_DT_CONFIG || - config->desc.bLength < USB_DT_CONFIG_SIZE) { + config->desc.bLength < USB_DT_CONFIG_SIZE || + config->desc.bLength > size) { dev_err(ddev, "invalid descriptor for config index %d: " "type = 0x%X, length = %d\n", cfgidx, config->desc.bDescriptorType, config->desc.bLength); diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 05986507b585..737e3c19967b 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -725,15 +725,15 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype, /* * check for the special corner case 'get_device_id' in the printer - * class specification, where wIndex is (interface << 8 | altsetting) - * instead of just interface + * class specification, which we always want to allow as it is used + * to query things like ink level, etc. */ if (requesttype == 0xa1 && request == 0) { alt_setting = usb_find_alt_setting(ps->dev->actconfig, index >> 8, index & 0xff); if (alt_setting && alt_setting->desc.bInterfaceClass == USB_CLASS_PRINTER) - index >>= 8; + return 0; } index &= 0xff; diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 7609ac4aed1c..f7841d44feda 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -94,32 +94,27 @@ ssize_t usb_show_dynids(struct usb_dynids *dynids, char *buf) } EXPORT_SYMBOL_GPL(usb_show_dynids); -static ssize_t show_dynids(struct device_driver *driver, char *buf) +static ssize_t new_id_show(struct device_driver *driver, char *buf) { struct usb_driver *usb_drv = to_usb_driver(driver); return usb_show_dynids(&usb_drv->dynids, buf); } -static ssize_t store_new_id(struct device_driver *driver, +static ssize_t new_id_store(struct device_driver *driver, const char *buf, size_t count) { struct usb_driver *usb_drv = to_usb_driver(driver); return usb_store_new_id(&usb_drv->dynids, driver, buf, count); } -static DRIVER_ATTR(new_id, S_IRUGO | S_IWUSR, show_dynids, store_new_id); +static DRIVER_ATTR_RW(new_id); -/** - * store_remove_id - remove a USB device ID from this driver - * @driver: target device driver - * @buf: buffer for scanning device ID data - * @count: input size - * - * Removes a dynamic usb device ID from this driver. +/* + * Remove a USB device ID from this driver */ -static ssize_t -store_remove_id(struct device_driver *driver, const char *buf, size_t count) +static ssize_t remove_id_store(struct device_driver *driver, const char *buf, + size_t count) { struct usb_dynid *dynid, *n; struct usb_driver *usb_driver = to_usb_driver(driver); @@ -144,7 +139,12 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count) spin_unlock(&usb_driver->dynids.lock); return count; } -static DRIVER_ATTR(remove_id, S_IRUGO | S_IWUSR, show_dynids, store_remove_id); + +static ssize_t remove_id_show(struct device_driver *driver, char *buf) +{ + return new_id_show(driver, buf); +} +static DRIVER_ATTR_RW(remove_id); static int usb_create_newid_files(struct usb_driver *usb_drv) { @@ -457,6 +457,8 @@ static int usb_unbind_interface(struct device *dev) * Callers must own the device lock, so driver probe() entries don't need * extra locking, but other call contexts may need to explicitly claim that * lock. + * + * Return: 0 on success. */ int usb_driver_claim_interface(struct usb_driver *driver, struct usb_interface *iface, void *priv) @@ -658,6 +660,8 @@ EXPORT_SYMBOL_GPL(usb_match_one_id); * These device tables are exported with MODULE_DEVICE_TABLE, through * modutils, to support the driver loading functionality of USB hotplugging. * + * Return: The first matching usb_device_id, or %NULL. + * * What Matches: * * The "match_flags" element in a usb_device_id controls which @@ -823,7 +827,8 @@ static int usb_uevent(struct device *dev, struct kobj_uevent_env *env) * Registers a USB device driver with the USB core. The list of * unattached devices will be rescanned whenever a new driver is * added, allowing the new driver to attach to any recognized devices. - * Returns a negative error code on failure and 0 on success. + * + * Return: A negative error code on failure and 0 on success. */ int usb_register_device_driver(struct usb_device_driver *new_udriver, struct module *owner) @@ -879,7 +884,8 @@ EXPORT_SYMBOL_GPL(usb_deregister_device_driver); * Registers a USB interface driver with the USB core. The list of * unattached interfaces will be rescanned whenever a new driver is * added, allowing the new driver to attach to any recognized interfaces. - * Returns a negative error code on failure and 0 on success. + * + * Return: A negative error code on failure and 0 on success. * * NOTE: if you want your driver to use the USB major number, you must call * usb_register_dev() to enable that functionality. This function no longer @@ -1213,6 +1219,8 @@ done: * unpredictable times. * * This routine can run only in process context. + * + * Return: 0 if the suspend succeeded. */ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) { @@ -1294,6 +1302,8 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) * unpredictable times. * * This routine can run only in process context. + * + * Return: 0 on success. */ static int usb_resume_both(struct usb_device *udev, pm_message_t msg) { @@ -1491,6 +1501,8 @@ void usb_autosuspend_device(struct usb_device *udev) * The caller must hold @udev's device lock. * * This routine can run only in process context. + * + * Return: 0 on success. A negative error code otherwise. */ int usb_autoresume_device(struct usb_device *udev) { @@ -1600,6 +1612,8 @@ EXPORT_SYMBOL_GPL(usb_autopm_put_interface_no_suspend); * However if the autoresume fails then the counter is re-decremented. * * This routine can run only in process context. + * + * Return: 0 on success. */ int usb_autopm_get_interface(struct usb_interface *intf) { @@ -1633,6 +1647,8 @@ EXPORT_SYMBOL_GPL(usb_autopm_get_interface); * resumed. * * This routine can run in atomic context. + * + * Return: 0 on success. A negative error code otherwise. */ int usb_autopm_get_interface_async(struct usb_interface *intf) { diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c index 68cc6532e749..39a24021fe4d 100644 --- a/drivers/usb/core/endpoint.c +++ b/drivers/usb/core/endpoint.c @@ -12,7 +12,6 @@ #include <linux/kernel.h> #include <linux/spinlock.h> #include <linux/slab.h> -#include <linux/idr.h> #include <linux/usb.h> #include "usb.h" @@ -33,31 +32,31 @@ struct ep_attribute { container_of(_attr, struct ep_attribute, attr) #define usb_ep_attr(field, format_string) \ -static ssize_t show_ep_##field(struct device *dev, \ +static ssize_t field##_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ struct ep_device *ep = to_ep_device(dev); \ return sprintf(buf, format_string, ep->desc->field); \ } \ -static DEVICE_ATTR(field, S_IRUGO, show_ep_##field, NULL); +static DEVICE_ATTR_RO(field) -usb_ep_attr(bLength, "%02x\n") -usb_ep_attr(bEndpointAddress, "%02x\n") -usb_ep_attr(bmAttributes, "%02x\n") -usb_ep_attr(bInterval, "%02x\n") +usb_ep_attr(bLength, "%02x\n"); +usb_ep_attr(bEndpointAddress, "%02x\n"); +usb_ep_attr(bmAttributes, "%02x\n"); +usb_ep_attr(bInterval, "%02x\n"); -static ssize_t show_ep_wMaxPacketSize(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t wMaxPacketSize_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct ep_device *ep = to_ep_device(dev); return sprintf(buf, "%04x\n", usb_endpoint_maxp(ep->desc) & 0x07ff); } -static DEVICE_ATTR(wMaxPacketSize, S_IRUGO, show_ep_wMaxPacketSize, NULL); +static DEVICE_ATTR_RO(wMaxPacketSize); -static ssize_t show_ep_type(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t type_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct ep_device *ep = to_ep_device(dev); char *type = "unknown"; @@ -78,10 +77,10 @@ static ssize_t show_ep_type(struct device *dev, struct device_attribute *attr, } return sprintf(buf, "%s\n", type); } -static DEVICE_ATTR(type, S_IRUGO, show_ep_type, NULL); +static DEVICE_ATTR_RO(type); -static ssize_t show_ep_interval(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t interval_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct ep_device *ep = to_ep_device(dev); char unit; @@ -124,10 +123,10 @@ static ssize_t show_ep_interval(struct device *dev, return sprintf(buf, "%d%cs\n", interval, unit); } -static DEVICE_ATTR(interval, S_IRUGO, show_ep_interval, NULL); +static DEVICE_ATTR_RO(interval); -static ssize_t show_ep_direction(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t direction_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct ep_device *ep = to_ep_device(dev); char *direction; @@ -140,7 +139,7 @@ static ssize_t show_ep_direction(struct device *dev, direction = "out"; return sprintf(buf, "%s\n", direction); } -static DEVICE_ATTR(direction, S_IRUGO, show_ep_direction, NULL); +static DEVICE_ATTR_RO(direction); static struct attribute *ep_dev_attrs[] = { &dev_attr_bLength.attr, diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index 6a4c40766f0f..7421888087a3 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c @@ -153,7 +153,7 @@ void usb_major_cleanup(void) * usb_deregister_dev() must be called when the driver is done with * the minor numbers given out by this function. * - * Returns -EINVAL if something bad happens with trying to register a + * Return: -EINVAL if something bad happens with trying to register a * device, and 0 on success. */ int usb_register_dev(struct usb_interface *intf, diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index caeb8d6d39fb..b9d3c43e3859 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -171,6 +171,8 @@ static void ehci_wait_for_companions(struct pci_dev *pdev, struct usb_hcd *hcd, * through the hotplug entry's driver_data. * * Store this function in the HCD's struct pci_driver as probe(). + * + * Return: 0 if successful. */ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 014dc996b4f6..d6a8d23f047b 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -378,9 +378,10 @@ MODULE_PARM_DESC(authorized_default, * @buf: Buffer for USB string descriptor (header + UTF-16LE) * @len: Length (in bytes; may be odd) of descriptor buffer. * - * The return value is the number of bytes filled in: 2 + 2*strlen(s) or - * buflen, whichever is less. + * Return: The number of bytes filled in: 2 + 2*strlen(s) or @len, + * whichever is less. * + * Note: * USB String descriptors can contain at most 126 characters; input * strings longer than that are truncated. */ @@ -416,7 +417,8 @@ ascii2desc(char const *s, u8 *buf, unsigned len) * * Produces either a manufacturer, product or serial number string for the * virtual root hub device. - * Returns the number of bytes filled in: the length of the descriptor or + * + * Return: The number of bytes filled in: the length of the descriptor or * of the provided buffer, whichever is less. */ static unsigned @@ -464,17 +466,13 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) struct usb_ctrlrequest *cmd; u16 typeReq, wValue, wIndex, wLength; u8 *ubuf = urb->transfer_buffer; - /* - * tbuf should be as big as the BOS descriptor and - * the USB hub descriptor. - */ - u8 tbuf[USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE] - __attribute__((aligned(4))); - const u8 *bufp = tbuf; unsigned len = 0; int status; u8 patch_wakeup = 0; u8 patch_protocol = 0; + u16 tbuf_size; + u8 *tbuf = NULL; + const u8 *bufp; might_sleep(); @@ -494,6 +492,18 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) if (wLength > urb->transfer_buffer_length) goto error; + /* + * tbuf should be at least as big as the + * USB hub descriptor. + */ + tbuf_size = max_t(u16, sizeof(struct usb_hub_descriptor), wLength); + tbuf = kzalloc(tbuf_size, GFP_KERNEL); + if (!tbuf) + return -ENOMEM; + + bufp = tbuf; + + urb->actual_length = 0; switch (typeReq) { @@ -691,18 +701,12 @@ error: bDeviceProtocol = USB_HUB_PR_HS_SINGLE_TT; } + kfree(tbuf); + /* any errors get returned through the urb completion */ spin_lock_irq(&hcd_root_hub_lock); usb_hcd_unlink_urb_from_ep(hcd, urb); - - /* This peculiar use of spinlocks echoes what real HC drivers do. - * Avoiding calls to local_irq_disable/enable makes the code - * RT-friendly. - */ - spin_unlock(&hcd_root_hub_lock); usb_hcd_giveback_urb(hcd, urb, status); - spin_lock(&hcd_root_hub_lock); - spin_unlock_irq(&hcd_root_hub_lock); return 0; } @@ -742,9 +746,7 @@ void usb_hcd_poll_rh_status(struct usb_hcd *hcd) memcpy(urb->transfer_buffer, buffer, length); usb_hcd_unlink_urb_from_ep(hcd, urb); - spin_unlock(&hcd_root_hub_lock); usb_hcd_giveback_urb(hcd, urb, 0); - spin_lock(&hcd_root_hub_lock); } else { length = 0; set_bit(HCD_FLAG_POLL_PENDING, &hcd->flags); @@ -834,10 +836,7 @@ static int usb_rh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) if (urb == hcd->status_urb) { hcd->status_urb = NULL; usb_hcd_unlink_urb_from_ep(hcd, urb); - - spin_unlock(&hcd_root_hub_lock); usb_hcd_giveback_urb(hcd, urb, status); - spin_lock(&hcd_root_hub_lock); } } done: @@ -850,9 +849,8 @@ static int usb_rh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) /* * Show & store the current value of authorized_default */ -static ssize_t usb_host_authorized_default_show(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t authorized_default_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_device *rh_usb_dev = to_usb_device(dev); struct usb_bus *usb_bus = rh_usb_dev->bus; @@ -864,9 +862,9 @@ static ssize_t usb_host_authorized_default_show(struct device *dev, return snprintf(buf, PAGE_SIZE, "%u\n", usb_hcd->authorized_default); } -static ssize_t usb_host_authorized_default_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t size) +static ssize_t authorized_default_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) { ssize_t result; unsigned val; @@ -886,11 +884,7 @@ static ssize_t usb_host_authorized_default_store(struct device *dev, result = -EINVAL; return result; } - -static DEVICE_ATTR(authorized_default, 0644, - usb_host_authorized_default_show, - usb_host_authorized_default_store); - +static DEVICE_ATTR_RW(authorized_default); /* Group all the USB bus attributes */ static struct attribute *usb_bus_attrs[] = { @@ -938,6 +932,8 @@ static void usb_bus_init (struct usb_bus *bus) * * Assigns a bus number, and links the controller into usbcore data * structures so that it can be seen by scanning the bus list. + * + * Return: 0 if successful. A negative error code otherwise. */ static int usb_register_bus(struct usb_bus *bus) { @@ -1002,6 +998,8 @@ static void usb_deregister_bus (struct usb_bus *bus) * the device properly in the device tree and then calls usb_new_device() * to register the usb device. It also assigns the root hub's USB address * (always 1). + * + * Return: 0 if successful. A negative error code otherwise. */ static int register_root_hub(struct usb_hcd *hcd) { @@ -1108,7 +1106,9 @@ EXPORT_SYMBOL_GPL(usb_hcd_end_port_resume); * @isoc: true for isochronous transactions, false for interrupt ones * @bytecount: how many bytes in the transaction. * - * Returns approximate bus time in nanoseconds for a periodic transaction. + * Return: Approximate bus time in nanoseconds for a periodic transaction. + * + * Note: * See USB 2.0 spec section 5.11.3; only periodic transfers need to be * scheduled in software, this function is only used for such scheduling. */ @@ -1166,7 +1166,7 @@ EXPORT_SYMBOL_GPL(usb_calc_bus_time); * be disabled. The actions carried out here are required for URB * submission, as well as for endpoint shutdown and for usb_kill_urb. * - * Returns 0 for no error, otherwise a negative error code (in which case + * Return: 0 for no error, otherwise a negative error code (in which case * the enqueue() method must fail). If no error occurs but enqueue() fails * anyway, it must call usb_hcd_unlink_urb_from_ep() before releasing * the private spinlock and returning. @@ -1221,7 +1221,7 @@ EXPORT_SYMBOL_GPL(usb_hcd_link_urb_to_ep); * be disabled. The actions carried out here are required for making * sure than an unlink is valid. * - * Returns 0 for no error, otherwise a negative error code (in which case + * Return: 0 for no error, otherwise a negative error code (in which case * the dequeue() method must fail). The possible error codes are: * * -EIDRM: @urb was not submitted or has already completed. @@ -1648,6 +1648,72 @@ int usb_hcd_unlink_urb (struct urb *urb, int status) /*-------------------------------------------------------------------------*/ +static void __usb_hcd_giveback_urb(struct urb *urb) +{ + struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); + int status = urb->unlinked; + unsigned long flags; + + urb->hcpriv = NULL; + if (unlikely((urb->transfer_flags & URB_SHORT_NOT_OK) && + urb->actual_length < urb->transfer_buffer_length && + !status)) + status = -EREMOTEIO; + + unmap_urb_for_dma(hcd, urb); + usbmon_urb_complete(&hcd->self, urb, status); + usb_unanchor_urb(urb); + + /* pass ownership to the completion handler */ + urb->status = status; + + /* + * We disable local IRQs here avoid possible deadlock because + * drivers may call spin_lock() to hold lock which might be + * acquired in one hard interrupt handler. + * + * The local_irq_save()/local_irq_restore() around complete() + * will be removed if current USB drivers have been cleaned up + * and no one may trigger the above deadlock situation when + * running complete() in tasklet. + */ + local_irq_save(flags); + urb->complete(urb); + local_irq_restore(flags); + + atomic_dec(&urb->use_count); + if (unlikely(atomic_read(&urb->reject))) + wake_up(&usb_kill_urb_queue); + usb_put_urb(urb); +} + +static void usb_giveback_urb_bh(unsigned long param) +{ + struct giveback_urb_bh *bh = (struct giveback_urb_bh *)param; + struct list_head local_list; + + spin_lock_irq(&bh->lock); + bh->running = true; + restart: + list_replace_init(&bh->head, &local_list); + spin_unlock_irq(&bh->lock); + + while (!list_empty(&local_list)) { + struct urb *urb; + + urb = list_entry(local_list.next, struct urb, urb_list); + list_del_init(&urb->urb_list); + __usb_hcd_giveback_urb(urb); + } + + /* check if there are new URBs to giveback */ + spin_lock_irq(&bh->lock); + if (!list_empty(&bh->head)) + goto restart; + bh->running = false; + spin_unlock_irq(&bh->lock); +} + /** * usb_hcd_giveback_urb - return URB from HCD to device driver * @hcd: host controller returning the URB @@ -1667,25 +1733,37 @@ int usb_hcd_unlink_urb (struct urb *urb, int status) */ void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb, int status) { - urb->hcpriv = NULL; - if (unlikely(urb->unlinked)) - status = urb->unlinked; - else if (unlikely((urb->transfer_flags & URB_SHORT_NOT_OK) && - urb->actual_length < urb->transfer_buffer_length && - !status)) - status = -EREMOTEIO; + struct giveback_urb_bh *bh; + bool running, high_prio_bh; - unmap_urb_for_dma(hcd, urb); - usbmon_urb_complete(&hcd->self, urb, status); - usb_unanchor_urb(urb); + /* pass status to tasklet via unlinked */ + if (likely(!urb->unlinked)) + urb->unlinked = status; - /* pass ownership to the completion handler */ - urb->status = status; - urb->complete (urb); - atomic_dec (&urb->use_count); - if (unlikely(atomic_read(&urb->reject))) - wake_up (&usb_kill_urb_queue); - usb_put_urb (urb); + if (!hcd_giveback_urb_in_bh(hcd) && !is_root_hub(urb->dev)) { + __usb_hcd_giveback_urb(urb); + return; + } + + if (usb_pipeisoc(urb->pipe) || usb_pipeint(urb->pipe)) { + bh = &hcd->high_prio_bh; + high_prio_bh = true; + } else { + bh = &hcd->low_prio_bh; + high_prio_bh = false; + } + + spin_lock(&bh->lock); + list_add_tail(&urb->urb_list, &bh->head); + running = bh->running; + spin_unlock(&bh->lock); + + if (running) + ; + else if (high_prio_bh) + tasklet_hi_schedule(&bh->bh); + else + tasklet_schedule(&bh->bh); } EXPORT_SYMBOL_GPL(usb_hcd_giveback_urb); @@ -1784,7 +1862,7 @@ rescan: * pass in the current alternate interface setting in cur_alt, * and pass in the new alternate interface setting in new_alt. * - * Returns an error if the requested bandwidth change exceeds the + * Return: An error if the requested bandwidth change exceeds the * bus bandwidth or host controller internal resources. */ int usb_hcd_alloc_bandwidth(struct usb_device *udev, @@ -1954,9 +2032,12 @@ void usb_hcd_reset_endpoint(struct usb_device *udev, * @num_streams: number of streams to allocate. * @mem_flags: flags hcd should use to allocate memory. * - * Sets up a group of bulk endpoints to have num_streams stream IDs available. + * Sets up a group of bulk endpoints to have @num_streams stream IDs available. * Drivers may queue multiple transfers to different stream IDs, which may * complete in a different order than they were queued. + * + * Return: On success, the number of allocated streams. On failure, a negative + * error code. */ int usb_alloc_streams(struct usb_interface *interface, struct usb_host_endpoint **eps, unsigned int num_eps, @@ -2201,6 +2282,8 @@ EXPORT_SYMBOL_GPL(usb_hcd_resume_root_hub); * khubd identifying and possibly configuring the device. * This is needed by OTG controller drivers, where it helps meet * HNP protocol timing requirements for starting a port reset. + * + * Return: 0 if successful. */ int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num) { @@ -2235,6 +2318,8 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum); * * If the controller isn't HALTed, calls the driver's irq handler. * Checks whether the controller is now dead. + * + * Return: %IRQ_HANDLED if the IRQ was handled. %IRQ_NONE otherwise. */ irqreturn_t usb_hcd_irq (int irq, void *__hcd) { @@ -2307,6 +2392,14 @@ EXPORT_SYMBOL_GPL (usb_hc_died); /*-------------------------------------------------------------------------*/ +static void init_giveback_urb_bh(struct giveback_urb_bh *bh) +{ + + spin_lock_init(&bh->lock); + INIT_LIST_HEAD(&bh->head); + tasklet_init(&bh->bh, usb_giveback_urb_bh, (unsigned long)bh); +} + /** * usb_create_shared_hcd - create and initialize an HCD structure * @driver: HC driver that will use this hcd @@ -2320,7 +2413,8 @@ EXPORT_SYMBOL_GPL (usb_hc_died); * HC driver's private data. Initialize the generic members of the * hcd structure. * - * If memory is unavailable, returns NULL. + * Return: On success, a pointer to the created and initialized HCD structure. + * On failure (e.g. if memory is unavailable), %NULL. */ struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver, struct device *dev, const char *bus_name, @@ -2384,7 +2478,8 @@ EXPORT_SYMBOL_GPL(usb_create_shared_hcd); * HC driver's private data. Initialize the generic members of the * hcd structure. * - * If memory is unavailable, returns NULL. + * Return: On success, a pointer to the created and initialized HCD + * structure. On failure (e.g. if memory is unavailable), %NULL. */ struct usb_hcd *usb_create_hcd(const struct hc_driver *driver, struct device *dev, const char *bus_name) @@ -2563,7 +2658,7 @@ int usb_add_hcd(struct usb_hcd *hcd, * should already have been reset (and boot firmware kicked off etc). */ if (hcd->driver->reset && (retval = hcd->driver->reset(hcd)) < 0) { - dev_err(hcd->self.controller, "can't setup\n"); + dev_err(hcd->self.controller, "can't setup: %d\n", retval); goto err_hcd_driver_setup; } hcd->rh_pollable = 1; @@ -2573,6 +2668,10 @@ int usb_add_hcd(struct usb_hcd *hcd, && device_can_wakeup(&hcd->self.root_hub->dev)) dev_dbg(hcd->self.controller, "supports USB remote wakeup\n"); + /* initialize tasklets */ + init_giveback_urb_bh(&hcd->high_prio_bh); + init_giveback_urb_bh(&hcd->low_prio_bh); + /* enable irqs just before we start the controller, * if the BIOS provides legacy PCI irqs. */ @@ -2681,6 +2780,16 @@ void usb_remove_hcd(struct usb_hcd *hcd) usb_disconnect(&rhdev); /* Sets rhdev to NULL */ mutex_unlock(&usb_bus_list_lock); + /* + * tasklet_kill() isn't needed here because: + * - driver's disconnect() called from usb_disconnect() should + * make sure its URBs are completed during the disconnect() + * callback + * + * - it is too late to run complete() here since driver may have + * been removed already now + */ + /* Prevent any more root-hub status calls from the timer. * The HCD might still restart the timer (if a port status change * interrupt occurs), but usb_hcd_poll_rh_status() won't invoke diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 558313de4911..dde4c83516a1 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -451,7 +451,7 @@ static void led_work (struct work_struct *work) if (hdev->state != USB_STATE_CONFIGURED || hub->quiescing) return; - for (i = 0; i < hub->descriptor->bNbrPorts; i++) { + for (i = 0; i < hdev->maxchild; i++) { unsigned selector, mode; /* 30%-50% duty cycle */ @@ -500,7 +500,7 @@ static void led_work (struct work_struct *work) } if (!changed && blinkenlights) { cursor++; - cursor %= hub->descriptor->bNbrPorts; + cursor %= hdev->maxchild; set_port_led(hub, cursor + 1, HUB_LED_GREEN); hub->indicator[cursor] = INDICATOR_CYCLE; changed++; @@ -734,6 +734,8 @@ static void hub_tt_work(struct work_struct *work) * * call this function to control port's power via setting or * clearing the port's PORT_POWER feature. + * + * Return: 0 if successful. A negative error code otherwise. */ int usb_hub_set_port_power(struct usb_device *hdev, struct usb_hub *hub, int port1, bool set) @@ -762,6 +764,8 @@ int usb_hub_set_port_power(struct usb_device *hdev, struct usb_hub *hub, * * It may not be possible for that hub to handle additional full (or low) * speed transactions until that state is fully cleared out. + * + * Return: 0 if successful. A negative error code otherwise. */ int usb_hub_clear_tt_buffer(struct urb *urb) { @@ -826,7 +830,7 @@ static unsigned hub_power_on(struct usb_hub *hub, bool do_delay) else dev_dbg(hub->intfdev, "trying to enable port power on " "non-switchable hub\n"); - for (port1 = 1; port1 <= hub->descriptor->bNbrPorts; port1++) + for (port1 = 1; port1 <= hub->hdev->maxchild; port1++) if (hub->ports[port1 - 1]->power_is_on) set_port_feature(hub->hdev, port1, USB_PORT_FEAT_POWER); else @@ -964,6 +968,8 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) * see that the device has been disconnected. When the device is * physically unplugged and something is plugged in, the events will * be received and processed normally. + * + * Return: 0 if successful. A negative error code otherwise. */ int usb_remove_device(struct usb_device *udev) { @@ -1464,11 +1470,10 @@ static int hub_configure(struct usb_hub *hub, * and battery-powered root hubs (may provide just 8 mA). */ ret = usb_get_status(hdev, USB_RECIP_DEVICE, 0, &hubstatus); - if (ret < 2) { + if (ret) { message = "can't get hub status"; goto fail; } - le16_to_cpus(&hubstatus); hcd = bus_to_hcd(hdev->bus); if (hdev == hdev->bus->root_hub) { if (hcd->power_budget > 0) @@ -1557,10 +1562,15 @@ static int hub_configure(struct usb_hub *hub, if (hub->has_indicators && blinkenlights) hub->indicator [0] = INDICATOR_CYCLE; - for (i = 0; i < hdev->maxchild; i++) - if (usb_hub_create_port_device(hub, i + 1) < 0) + for (i = 0; i < hdev->maxchild; i++) { + ret = usb_hub_create_port_device(hub, i + 1); + if (ret < 0) { dev_err(hub->intfdev, "couldn't create port%d device.\n", i + 1); + hdev->maxchild = i; + goto fail_keep_maxchild; + } + } usb_hub_adjust_deviceremovable(hdev, hub->descriptor); @@ -1568,6 +1578,8 @@ static int hub_configure(struct usb_hub *hub, return 0; fail: + hdev->maxchild = 0; +fail_keep_maxchild: dev_err (hub_dev, "config failed, %s (err %d)\n", message, ret); /* hub_disconnect() frees urb and descriptor */ @@ -2116,6 +2128,8 @@ static inline void announce_device(struct usb_device *udev) { } * @udev: newly addressed device (in ADDRESS state) * * Finish enumeration for On-The-Go devices + * + * Return: 0 if successful. A negative error code otherwise. */ static int usb_enumerate_device_otg(struct usb_device *udev) { @@ -2198,6 +2212,8 @@ fail: * If the device is WUSB and not authorized, we don't attempt to read * the string descriptors, as they will be errored out by the device * until it has been authorized. + * + * Return: 0 if successful. A negative error code otherwise. */ static int usb_enumerate_device(struct usb_device *udev) { @@ -2278,13 +2294,14 @@ static void set_usb_port_removable(struct usb_device *udev) * udev has already been installed, but udev is not yet visible through * sysfs or other filesystem code. * - * It will return if the device is configured properly or not. Zero if - * the interface was registered with the driver core; else a negative - * errno value. - * * This call is synchronous, and may not be used in an interrupt context. * * Only the hub driver or root-hub registrar should ever call this. + * + * Return: Whether the device is configured properly or not. Zero if the + * interface was registered with the driver core; else a negative errno + * value. + * */ int usb_new_device(struct usb_device *udev) { @@ -2392,6 +2409,8 @@ fail: * * We share a lock (that we have) with device_del(), so we need to * defer its call. + * + * Return: 0. */ int usb_deauthorize_device(struct usb_device *usb_dev) { @@ -2838,20 +2857,51 @@ void usb_enable_ltm(struct usb_device *udev) } EXPORT_SYMBOL_GPL(usb_enable_ltm); -#ifdef CONFIG_PM /* - * usb_disable_function_remotewakeup - disable usb3.0 - * device's function remote wakeup + * usb_enable_remote_wakeup - enable remote wakeup for a device + * @udev: target device + * + * For USB-2 devices: Set the device's remote wakeup feature. + * + * For USB-3 devices: Assume there's only one function on the device and + * enable remote wake for the first interface. FIXME if the interface + * association descriptor shows there's more than one function. + */ +static int usb_enable_remote_wakeup(struct usb_device *udev) +{ + if (udev->speed < USB_SPEED_SUPER) + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, + USB_DEVICE_REMOTE_WAKEUP, 0, NULL, 0, + USB_CTRL_SET_TIMEOUT); + else + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + USB_REQ_SET_FEATURE, USB_RECIP_INTERFACE, + USB_INTRF_FUNC_SUSPEND, + USB_INTRF_FUNC_SUSPEND_RW | + USB_INTRF_FUNC_SUSPEND_LP, + NULL, 0, USB_CTRL_SET_TIMEOUT); +} + +/* + * usb_disable_remote_wakeup - disable remote wakeup for a device * @udev: target device * - * Assume there's only one function on the USB 3.0 - * device and disable remote wake for the first - * interface. FIXME if the interface association - * descriptor shows there's more than one function. + * For USB-2 devices: Clear the device's remote wakeup feature. + * + * For USB-3 devices: Assume there's only one function on the device and + * disable remote wake for the first interface. FIXME if the interface + * association descriptor shows there's more than one function. */ -static int usb_disable_function_remotewakeup(struct usb_device *udev) +static int usb_disable_remote_wakeup(struct usb_device *udev) { - return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + if (udev->speed < USB_SPEED_SUPER) + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + USB_REQ_CLEAR_FEATURE, USB_RECIP_DEVICE, + USB_DEVICE_REMOTE_WAKEUP, 0, NULL, 0, + USB_CTRL_SET_TIMEOUT); + else + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), USB_REQ_CLEAR_FEATURE, USB_RECIP_INTERFACE, USB_INTRF_FUNC_SUSPEND, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); @@ -2918,7 +2968,6 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) { struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); struct usb_port *port_dev = hub->ports[udev->portnum - 1]; - enum pm_qos_flags_status pm_qos_stat; int port1 = udev->portnum; int status; bool really_suspend = true; @@ -2930,33 +2979,13 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) * we don't explicitly enable it here. */ if (udev->do_remote_wakeup) { - if (!hub_is_superspeed(hub->hdev)) { - status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), - USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, - USB_DEVICE_REMOTE_WAKEUP, 0, - NULL, 0, - USB_CTRL_SET_TIMEOUT); - } else { - /* Assume there's only one function on the USB 3.0 - * device and enable remote wake for the first - * interface. FIXME if the interface association - * descriptor shows there's more than one function. - */ - status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), - USB_REQ_SET_FEATURE, - USB_RECIP_INTERFACE, - USB_INTRF_FUNC_SUSPEND, - USB_INTRF_FUNC_SUSPEND_RW | - USB_INTRF_FUNC_SUSPEND_LP, - NULL, 0, - USB_CTRL_SET_TIMEOUT); - } + status = usb_enable_remote_wakeup(udev); if (status) { dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", status); /* bail if autosuspend is requested */ if (PMSG_IS_AUTO(msg)) - return status; + goto err_wakeup; } } @@ -2965,14 +2994,16 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) usb_set_usb2_hardware_lpm(udev, 0); if (usb_disable_ltm(udev)) { - dev_err(&udev->dev, "%s Failed to disable LTM before suspend\n.", - __func__); - return -ENOMEM; + dev_err(&udev->dev, "Failed to disable LTM before suspend\n."); + status = -ENOMEM; + if (PMSG_IS_AUTO(msg)) + goto err_ltm; } if (usb_unlocked_disable_lpm(udev)) { - dev_err(&udev->dev, "%s Failed to disable LPM before suspend\n.", - __func__); - return -ENOMEM; + dev_err(&udev->dev, "Failed to disable LPM before suspend\n."); + status = -ENOMEM; + if (PMSG_IS_AUTO(msg)) + goto err_lpm3; } /* see 7.1.7.6 */ @@ -3000,28 +3031,19 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) if (status) { dev_dbg(hub->intfdev, "can't suspend port %d, status %d\n", port1, status); - /* paranoia: "should not happen" */ - if (udev->do_remote_wakeup) { - if (!hub_is_superspeed(hub->hdev)) { - (void) usb_control_msg(udev, - usb_sndctrlpipe(udev, 0), - USB_REQ_CLEAR_FEATURE, - USB_RECIP_DEVICE, - USB_DEVICE_REMOTE_WAKEUP, 0, - NULL, 0, - USB_CTRL_SET_TIMEOUT); - } else - (void) usb_disable_function_remotewakeup(udev); - - } + /* Try to enable USB3 LPM and LTM again */ + usb_unlocked_enable_lpm(udev); + err_lpm3: + usb_enable_ltm(udev); + err_ltm: /* Try to enable USB2 hardware LPM again */ if (udev->usb2_hw_lpm_capable == 1) usb_set_usb2_hardware_lpm(udev, 1); - /* Try to enable USB3 LTM and LPM again */ - usb_enable_ltm(udev); - usb_unlocked_enable_lpm(udev); + if (udev->do_remote_wakeup) + (void) usb_disable_remote_wakeup(udev); + err_wakeup: /* System sleep transitions should never fail */ if (!PMSG_IS_AUTO(msg)) @@ -3039,16 +3061,7 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) usb_set_device_state(udev, USB_STATE_SUSPENDED); } - /* - * Check whether current status meets the requirement of - * usb port power off mechanism - */ - pm_qos_stat = dev_pm_qos_flags(&port_dev->dev, - PM_QOS_FLAG_NO_POWER_OFF); - if (!udev->do_remote_wakeup - && pm_qos_stat != PM_QOS_FLAGS_ALL - && udev->persist_enabled - && !status) { + if (status == 0 && !udev->do_remote_wakeup && udev->persist_enabled) { pm_runtime_put_sync(&port_dev->dev); port_dev->did_runtime_put = true; } @@ -3102,8 +3115,6 @@ static int finish_port_resume(struct usb_device *udev) if (status == 0) { devstatus = 0; status = usb_get_status(udev, USB_RECIP_DEVICE, 0, &devstatus); - if (status >= 0) - status = (status > 0 ? 0 : -ENODEV); /* If a normal resume failed, try doing a reset-resume */ if (status && !udev->reset_resume && udev->persist_enabled) { @@ -3123,24 +3134,15 @@ static int finish_port_resume(struct usb_device *udev) * udev->reset_resume */ } else if (udev->actconfig && !udev->reset_resume) { - if (!hub_is_superspeed(udev->parent)) { - le16_to_cpus(&devstatus); + if (udev->speed < USB_SPEED_SUPER) { if (devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) - status = usb_control_msg(udev, - usb_sndctrlpipe(udev, 0), - USB_REQ_CLEAR_FEATURE, - USB_RECIP_DEVICE, - USB_DEVICE_REMOTE_WAKEUP, 0, - NULL, 0, - USB_CTRL_SET_TIMEOUT); + status = usb_disable_remote_wakeup(udev); } else { status = usb_get_status(udev, USB_RECIP_INTERFACE, 0, &devstatus); - le16_to_cpus(&devstatus); if (!status && devstatus & (USB_INTRF_STAT_FUNC_RW_CAP | USB_INTRF_STAT_FUNC_RW)) - status = - usb_disable_function_remotewakeup(udev); + status = usb_disable_remote_wakeup(udev); } if (status) @@ -3274,8 +3276,6 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg) return status; } -#endif /* CONFIG_PM */ - #ifdef CONFIG_PM_RUNTIME /* caller has locked udev */ @@ -3843,7 +3843,8 @@ EXPORT_SYMBOL_GPL(usb_disable_ltm); void usb_enable_ltm(struct usb_device *udev) { } EXPORT_SYMBOL_GPL(usb_enable_ltm); -#endif + +#endif /* CONFIG_PM */ /* USB 2.0 spec, 7.1.7.3 / fig 7-29: @@ -4483,11 +4484,10 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, status = usb_get_status(udev, USB_RECIP_DEVICE, 0, &devstat); - if (status < 2) { + if (status) { dev_dbg(&udev->dev, "get status %d ?\n", status); goto loop_disable; } - le16_to_cpus(&devstat); if ((devstat & (1 << USB_DEVICE_SELF_POWERED)) == 0) { dev_err(&udev->dev, "can't connect bus-powered hub " @@ -4648,9 +4648,7 @@ static void hub_events(void) hub_dev = hub->intfdev; intf = to_usb_interface(hub_dev); dev_dbg(hub_dev, "state %d ports %d chg %04x evt %04x\n", - hdev->state, hub->descriptor - ? hub->descriptor->bNbrPorts - : 0, + hdev->state, hdev->maxchild, /* NOTE: expects max 15 ports... */ (u16) hub->change_bits[0], (u16) hub->event_bits[0]); @@ -4695,7 +4693,7 @@ static void hub_events(void) } /* deal with port status changes */ - for (i = 1; i <= hub->descriptor->bNbrPorts; i++) { + for (i = 1; i <= hdev->maxchild; i++) { if (test_bit(i, hub->busy_bits)) continue; connect_change = test_bit(i, hub->change_bits); @@ -4946,7 +4944,8 @@ void usb_hub_cleanup(void) } /* usb_hub_cleanup() */ static int descriptors_changed(struct usb_device *udev, - struct usb_device_descriptor *old_device_descriptor) + struct usb_device_descriptor *old_device_descriptor, + struct usb_host_bos *old_bos) { int changed = 0; unsigned index; @@ -4960,6 +4959,16 @@ static int descriptors_changed(struct usb_device *udev, sizeof(*old_device_descriptor)) != 0) return 1; + if ((old_bos && !udev->bos) || (!old_bos && udev->bos)) + return 1; + if (udev->bos) { + len = le16_to_cpu(udev->bos->desc->wTotalLength); + if (len != le16_to_cpu(old_bos->desc->wTotalLength)) + return 1; + if (memcmp(udev->bos->desc, old_bos->desc, len)) + return 1; + } + /* Since the idVendor, idProduct, and bcdDevice values in the * device descriptor haven't changed, we will assume the * Manufacturer and Product strings haven't changed either. @@ -5035,10 +5044,11 @@ static int descriptors_changed(struct usb_device *udev, * re-connected. All drivers will be unbound, and the device will be * re-enumerated and probed all over again. * - * Returns 0 if the reset succeeded, -ENODEV if the device has been + * Return: 0 if the reset succeeded, -ENODEV if the device has been * flagged for logical disconnection, or some other negative error code * if the reset wasn't even attempted. * + * Note: * The caller must own the device lock. For example, it's safe to use * this from a driver probe() routine after downloading new firmware. * For calls that might not occur during probe(), drivers should lock @@ -5055,6 +5065,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev) struct usb_hub *parent_hub; struct usb_hcd *hcd = bus_to_hcd(udev->bus); struct usb_device_descriptor descriptor = udev->descriptor; + struct usb_host_bos *bos; int i, ret = 0; int port1 = udev->portnum; @@ -5072,6 +5083,9 @@ static int usb_reset_and_verify_device(struct usb_device *udev) } parent_hub = usb_hub_to_struct_hub(parent_hdev); + bos = udev->bos; + udev->bos = NULL; + /* Disable LPM and LTM while we reset the device and reinstall the alt * settings. Device-initiated LPM settings, and system exit latency * settings are cleared when the device is reset, so we have to set @@ -5105,7 +5119,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev) goto re_enumerate; /* Device might have changed firmware (DFU or similar) */ - if (descriptors_changed(udev, &descriptor)) { + if (descriptors_changed(udev, &descriptor, bos)) { dev_info(&udev->dev, "device firmware changed\n"); udev->descriptor = descriptor; /* for disconnect() calls */ goto re_enumerate; @@ -5178,11 +5192,15 @@ done: /* Now that the alt settings are re-installed, enable LTM and LPM. */ usb_unlocked_enable_lpm(udev); usb_enable_ltm(udev); + usb_release_bos_descriptor(udev); + udev->bos = bos; return 0; re_enumerate: /* LPM state doesn't matter when we're about to destroy the device. */ hub_port_logical_disconnect(parent_hub, port1); + usb_release_bos_descriptor(udev); + udev->bos = bos; return -ENODEV; } @@ -5194,8 +5212,9 @@ re_enumerate: * method), performs the port reset, and then lets the drivers know that * the reset is over (using their post_reset method). * - * Return value is the same as for usb_reset_and_verify_device(). + * Return: The same as for usb_reset_and_verify_device(). * + * Note: * The caller must own the device lock. For example, it's safe to use * this from a driver probe() routine after downloading new firmware. * For calls that might not occur during probe(), drivers should lock @@ -5333,7 +5352,7 @@ EXPORT_SYMBOL_GPL(usb_queue_reset_device); * USB drivers call this function to get hub's child device * pointer. * - * Return NULL if input param is invalid and + * Return: %NULL if input param is invalid and * child's usb_device pointer if non-NULL. */ struct usb_device *usb_hub_find_child(struct usb_device *hdev, @@ -5367,8 +5386,8 @@ void usb_set_hub_port_connect_type(struct usb_device *hdev, int port1, * @hdev: USB device belonging to the usb hub * @port1: port num of the port * - * Return connect type of the port and if input params are - * invalid, return USB_PORT_CONNECT_TYPE_UNKNOWN. + * Return: The connect type of the port if successful. Or + * USB_PORT_CONNECT_TYPE_UNKNOWN if input params are invalid. */ enum usb_port_connect_type usb_get_hub_port_connect_type(struct usb_device *hdev, int port1) @@ -5428,8 +5447,8 @@ void usb_hub_adjust_deviceremovable(struct usb_device *hdev, * @hdev: USB device belonging to the usb hub * @port1: port num of the port * - * Return port's acpi handle if successful, NULL if params are - * invaild. + * Return: Port's acpi handle if successful, %NULL if params are + * invalid. */ acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev, int port1) diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index e7ee1e451660..82927e1ed27d 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -119,15 +119,15 @@ static int usb_internal_control_msg(struct usb_device *usb_dev, * This function sends a simple control message to a specified endpoint and * waits for the message to complete, or timeout. * - * If successful, it returns the number of bytes transferred, otherwise a - * negative error number. - * * Don't use this function from within an interrupt context, like a bottom half * handler. If you need an asynchronous message, or need to send a message * from within interrupt context, use usb_submit_urb(). * If a thread in your driver uses this call, make sure your disconnect() * method can wait for it to complete. Since you don't have a handle on the * URB used, you can't cancel the request. + * + * Return: If successful, the number of bytes transferred. Otherwise, a negative + * error number. */ int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, @@ -170,15 +170,16 @@ EXPORT_SYMBOL_GPL(usb_control_msg); * This function sends a simple interrupt message to a specified endpoint and * waits for the message to complete, or timeout. * - * If successful, it returns 0, otherwise a negative error number. The number - * of actual bytes transferred will be stored in the actual_length paramater. - * * Don't use this function from within an interrupt context, like a bottom half * handler. If you need an asynchronous message, or need to send a message * from within interrupt context, use usb_submit_urb() If a thread in your * driver uses this call, make sure your disconnect() method can wait for it to * complete. Since you don't have a handle on the URB used, you can't cancel * the request. + * + * Return: + * If successful, 0. Otherwise a negative error number. The number of actual + * bytes transferred will be stored in the @actual_length paramater. */ int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe, void *data, int len, int *actual_length, int timeout) @@ -203,9 +204,6 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg); * This function sends a simple bulk message to a specified endpoint * and waits for the message to complete, or timeout. * - * If successful, it returns 0, otherwise a negative error number. The number - * of actual bytes transferred will be stored in the actual_length paramater. - * * Don't use this function from within an interrupt context, like a bottom half * handler. If you need an asynchronous message, or need to send a message * from within interrupt context, use usb_submit_urb() If a thread in your @@ -217,6 +215,11 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg); * users are forced to abuse this routine by using it to submit URBs for * interrupt endpoints. We will take the liberty of creating an interrupt URB * (with the default interval) if the target is an interrupt endpoint. + * + * Return: + * If successful, 0. Otherwise a negative error number. The number of actual + * bytes transferred will be stored in the @actual_length paramater. + * */ int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe, void *data, int len, int *actual_length, int timeout) @@ -341,9 +344,9 @@ static void sg_complete(struct urb *urb) * send every byte identified in the list. * @mem_flags: SLAB_* flags affecting memory allocations in this call * - * Returns zero for success, else a negative errno value. This initializes a - * scatter/gather request, allocating resources such as I/O mappings and urb - * memory (except maybe memory used by USB controller drivers). + * This initializes a scatter/gather request, allocating resources such as + * I/O mappings and urb memory (except maybe memory used by USB controller + * drivers). * * The request must be issued using usb_sg_wait(), which waits for the I/O to * complete (or to be canceled) and then cleans up all resources allocated by @@ -351,6 +354,8 @@ static void sg_complete(struct urb *urb) * * The request may be canceled with usb_sg_cancel(), either before or after * usb_sg_wait() is called. + * + * Return: Zero for success, else a negative errno value. */ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev, unsigned pipe, unsigned period, struct scatterlist *sg, @@ -623,7 +628,7 @@ EXPORT_SYMBOL_GPL(usb_sg_cancel); * * This call is synchronous, and may not be used in an interrupt context. * - * Returns the number of bytes received on success, or else the status code + * Return: The number of bytes received on success, or else the status code * returned by the underlying usb_control_msg() call. */ int usb_get_descriptor(struct usb_device *dev, unsigned char type, @@ -671,7 +676,7 @@ EXPORT_SYMBOL_GPL(usb_get_descriptor); * * This call is synchronous, and may not be used in an interrupt context. * - * Returns the number of bytes received on success, or else the status code + * Return: The number of bytes received on success, or else the status code * returned by the underlying usb_control_msg() call. */ static int usb_get_string(struct usb_device *dev, unsigned short langid, @@ -805,7 +810,7 @@ static int usb_get_langid(struct usb_device *dev, unsigned char *tbuf) * * This call is synchronous, and may not be used in an interrupt context. * - * Returns length of the string (>= 0) or usb_control_msg status (< 0). + * Return: length of the string (>= 0) or usb_control_msg status (< 0). */ int usb_string(struct usb_device *dev, int index, char *buf, size_t size) { @@ -853,8 +858,8 @@ EXPORT_SYMBOL_GPL(usb_string); * @udev: the device whose string descriptor is being read * @index: the descriptor index * - * Returns a pointer to a kmalloc'ed buffer containing the descriptor string, - * or NULL if the index is 0 or the string could not be read. + * Return: A pointer to a kmalloc'ed buffer containing the descriptor string, + * or %NULL if the index is 0 or the string could not be read. */ char *usb_cache_string(struct usb_device *udev, int index) { @@ -894,7 +899,7 @@ char *usb_cache_string(struct usb_device *udev, int index) * * This call is synchronous, and may not be used in an interrupt context. * - * Returns the number of bytes received on success, or else the status code + * Return: The number of bytes received on success, or else the status code * returned by the underlying usb_control_msg() call. */ int usb_get_device_descriptor(struct usb_device *dev, unsigned int size) @@ -934,13 +939,13 @@ int usb_get_device_descriptor(struct usb_device *dev, unsigned int size) * * This call is synchronous, and may not be used in an interrupt context. * - * Returns the number of bytes received on success, or else the status code - * returned by the underlying usb_control_msg() call. + * Returns 0 and the status value in *@data (in host byte order) on success, + * or else the status code from the underlying usb_control_msg() call. */ int usb_get_status(struct usb_device *dev, int type, int target, void *data) { int ret; - u16 *status = kmalloc(sizeof(*status), GFP_KERNEL); + __le16 *status = kmalloc(sizeof(*status), GFP_KERNEL); if (!status) return -ENOMEM; @@ -949,7 +954,12 @@ int usb_get_status(struct usb_device *dev, int type, int target, void *data) USB_REQ_GET_STATUS, USB_DIR_IN | type, 0, target, status, sizeof(*status), USB_CTRL_GET_TIMEOUT); - *(u16 *)data = *status; + if (ret == 2) { + *(u16 *) data = le16_to_cpu(*status); + ret = 0; + } else if (ret >= 0) { + ret = -EIO; + } kfree(status); return ret; } @@ -975,7 +985,7 @@ EXPORT_SYMBOL_GPL(usb_get_status); * * This call is synchronous, and may not be used in an interrupt context. * - * Returns zero on success, or else the status code returned by the + * Return: Zero on success, or else the status code returned by the * underlying usb_control_msg() call. */ int usb_clear_halt(struct usb_device *dev, int pipe) @@ -1272,7 +1282,7 @@ void usb_enable_interface(struct usb_device *dev, * endpoints in that interface; all such urbs must first be completed * (perhaps forced by unlinking). * - * Returns zero on success, or else the status code returned by the + * Return: Zero on success, or else the status code returned by the * underlying usb_control_msg() call. */ int usb_set_interface(struct usb_device *dev, int interface, int alternate) @@ -1426,7 +1436,7 @@ EXPORT_SYMBOL_GPL(usb_set_interface); * * The caller must own the device lock. * - * Returns zero on success, else a negative error code. + * Return: Zero on success, else a negative error code. */ int usb_reset_configuration(struct usb_device *dev) { @@ -1968,7 +1978,7 @@ static void cancel_async_set_config(struct usb_device *udev) * routine gets around the normal restrictions by using a work thread to * submit the change-config request. * - * Returns 0 if the request was successfully queued, error code otherwise. + * Return: 0 if the request was successfully queued, error code otherwise. * The caller has no way to know whether the queued request will eventually * succeed. */ diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c index d6b0fadf53e9..51542f852393 100644 --- a/drivers/usb/core/port.c +++ b/drivers/usb/core/port.c @@ -23,8 +23,8 @@ static const struct attribute_group *port_dev_group[]; -static ssize_t show_port_connect_type(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t connect_type_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_port *port_dev = to_usb_port(dev); char *result; @@ -46,8 +46,7 @@ static ssize_t show_port_connect_type(struct device *dev, return sprintf(buf, "%s\n", result); } -static DEVICE_ATTR(connect_type, S_IRUGO, show_port_connect_type, - NULL); +static DEVICE_ATTR_RO(connect_type); static struct attribute *port_dev_attrs[] = { &dev_attr_connect_type.attr, @@ -89,22 +88,19 @@ static int usb_port_runtime_resume(struct device *dev) retval = usb_hub_set_port_power(hdev, hub, port1, true); if (port_dev->child && !retval) { /* - * Wait for usb hub port to be reconnected in order to make - * the resume procedure successful. + * Attempt to wait for usb hub port to be reconnected in order + * to make the resume procedure successful. The device may have + * disconnected while the port was powered off, so ignore the + * return status. */ retval = hub_port_debounce_be_connected(hub, port1); - if (retval < 0) { + if (retval < 0) dev_dbg(&port_dev->dev, "can't get reconnection after setting port power on, status %d\n", retval); - goto out; - } usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_ENABLE); - - /* Set return value to 0 if debounce successful */ retval = 0; } -out: clear_bit(port1, hub->busy_bits); usb_autopm_put_interface(intf); return retval; diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index d9284b998bd7..6d2c8edb1ffe 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -18,8 +18,8 @@ /* Active configuration fields */ #define usb_actconfig_show(field, format_string) \ -static ssize_t show_##field(struct device *dev, \ - struct device_attribute *attr, char *buf) \ +static ssize_t field##_show(struct device *dev, \ + struct device_attribute *attr, char *buf) \ { \ struct usb_device *udev; \ struct usb_host_config *actconfig; \ @@ -35,12 +35,12 @@ static ssize_t show_##field(struct device *dev, \ #define usb_actconfig_attr(field, format_string) \ usb_actconfig_show(field, format_string) \ - static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL); + static DEVICE_ATTR_RO(field) -usb_actconfig_attr(bNumInterfaces, "%2d\n") -usb_actconfig_attr(bmAttributes, "%2x\n") +usb_actconfig_attr(bNumInterfaces, "%2d\n"); +usb_actconfig_attr(bmAttributes, "%2x\n"); -static ssize_t show_bMaxPower(struct device *dev, +static ssize_t bMaxPower_show(struct device *dev, struct device_attribute *attr, char *buf) { struct usb_device *udev; @@ -52,9 +52,9 @@ static ssize_t show_bMaxPower(struct device *dev, return 0; return sprintf(buf, "%dmA\n", usb_get_max_power(udev, actconfig)); } -static DEVICE_ATTR(bMaxPower, S_IRUGO, show_bMaxPower, NULL); +static DEVICE_ATTR_RO(bMaxPower); -static ssize_t show_configuration_string(struct device *dev, +static ssize_t configuration_show(struct device *dev, struct device_attribute *attr, char *buf) { struct usb_device *udev; @@ -66,14 +66,14 @@ static ssize_t show_configuration_string(struct device *dev, return 0; return sprintf(buf, "%s\n", actconfig->string); } -static DEVICE_ATTR(configuration, S_IRUGO, show_configuration_string, NULL); +static DEVICE_ATTR_RO(configuration); /* configuration value is always present, and r/w */ usb_actconfig_show(bConfigurationValue, "%u\n"); -static ssize_t -set_bConfigurationValue(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t bConfigurationValue_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct usb_device *udev = to_usb_device(dev); int config, value; @@ -85,13 +85,12 @@ set_bConfigurationValue(struct device *dev, struct device_attribute *attr, usb_unlock_device(udev); return (value < 0) ? value : count; } - static DEVICE_ATTR_IGNORE_LOCKDEP(bConfigurationValue, S_IRUGO | S_IWUSR, - show_bConfigurationValue, set_bConfigurationValue); + bConfigurationValue_show, bConfigurationValue_store); /* String fields */ #define usb_string_attr(name) \ -static ssize_t show_##name(struct device *dev, \ +static ssize_t name##_show(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct usb_device *udev; \ @@ -103,14 +102,14 @@ static ssize_t show_##name(struct device *dev, \ usb_unlock_device(udev); \ return retval; \ } \ -static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL); +static DEVICE_ATTR_RO(name) usb_string_attr(product); usb_string_attr(manufacturer); usb_string_attr(serial); -static ssize_t -show_speed(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t speed_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; char *speed; @@ -139,40 +138,40 @@ show_speed(struct device *dev, struct device_attribute *attr, char *buf) } return sprintf(buf, "%s\n", speed); } -static DEVICE_ATTR(speed, S_IRUGO, show_speed, NULL); +static DEVICE_ATTR_RO(speed); -static ssize_t -show_busnum(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t busnum_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; udev = to_usb_device(dev); return sprintf(buf, "%d\n", udev->bus->busnum); } -static DEVICE_ATTR(busnum, S_IRUGO, show_busnum, NULL); +static DEVICE_ATTR_RO(busnum); -static ssize_t -show_devnum(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t devnum_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; udev = to_usb_device(dev); return sprintf(buf, "%d\n", udev->devnum); } -static DEVICE_ATTR(devnum, S_IRUGO, show_devnum, NULL); +static DEVICE_ATTR_RO(devnum); -static ssize_t -show_devpath(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t devpath_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; udev = to_usb_device(dev); return sprintf(buf, "%s\n", udev->devpath); } -static DEVICE_ATTR(devpath, S_IRUGO, show_devpath, NULL); +static DEVICE_ATTR_RO(devpath); -static ssize_t -show_version(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t version_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; u16 bcdUSB; @@ -181,30 +180,30 @@ show_version(struct device *dev, struct device_attribute *attr, char *buf) bcdUSB = le16_to_cpu(udev->descriptor.bcdUSB); return sprintf(buf, "%2x.%02x\n", bcdUSB >> 8, bcdUSB & 0xff); } -static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); +static DEVICE_ATTR_RO(version); -static ssize_t -show_maxchild(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t maxchild_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; udev = to_usb_device(dev); return sprintf(buf, "%d\n", udev->maxchild); } -static DEVICE_ATTR(maxchild, S_IRUGO, show_maxchild, NULL); +static DEVICE_ATTR_RO(maxchild); -static ssize_t -show_quirks(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t quirks_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; udev = to_usb_device(dev); return sprintf(buf, "0x%x\n", udev->quirks); } -static DEVICE_ATTR(quirks, S_IRUGO, show_quirks, NULL); +static DEVICE_ATTR_RO(quirks); -static ssize_t -show_avoid_reset_quirk(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t avoid_reset_quirk_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_device *udev; @@ -212,9 +211,9 @@ show_avoid_reset_quirk(struct device *dev, struct device_attribute *attr, char * return sprintf(buf, "%d\n", !!(udev->quirks & USB_QUIRK_RESET)); } -static ssize_t -set_avoid_reset_quirk(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t avoid_reset_quirk_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct usb_device *udev = to_usb_device(dev); int val; @@ -229,22 +228,20 @@ set_avoid_reset_quirk(struct device *dev, struct device_attribute *attr, usb_unlock_device(udev); return count; } +static DEVICE_ATTR_RW(avoid_reset_quirk); -static DEVICE_ATTR(avoid_reset_quirk, S_IRUGO | S_IWUSR, - show_avoid_reset_quirk, set_avoid_reset_quirk); - -static ssize_t -show_urbnum(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t urbnum_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; udev = to_usb_device(dev); return sprintf(buf, "%d\n", atomic_read(&udev->urbnum)); } -static DEVICE_ATTR(urbnum, S_IRUGO, show_urbnum, NULL); +static DEVICE_ATTR_RO(urbnum); -static ssize_t -show_removable(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t removable_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev; char *state; @@ -264,30 +261,29 @@ show_removable(struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%s\n", state); } -static DEVICE_ATTR(removable, S_IRUGO, show_removable, NULL); +static DEVICE_ATTR_RO(removable); -static ssize_t -show_ltm_capable(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t ltm_capable_show(struct device *dev, + struct device_attribute *attr, char *buf) { if (usb_device_supports_ltm(to_usb_device(dev))) return sprintf(buf, "%s\n", "yes"); return sprintf(buf, "%s\n", "no"); } -static DEVICE_ATTR(ltm_capable, S_IRUGO, show_ltm_capable, NULL); +static DEVICE_ATTR_RO(ltm_capable); #ifdef CONFIG_PM -static ssize_t -show_persist(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t persist_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev = to_usb_device(dev); return sprintf(buf, "%d\n", udev->persist_enabled); } -static ssize_t -set_persist(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t persist_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct usb_device *udev = to_usb_device(dev); int value; @@ -304,8 +300,7 @@ set_persist(struct device *dev, struct device_attribute *attr, usb_unlock_device(udev); return count; } - -static DEVICE_ATTR(persist, S_IRUGO | S_IWUSR, show_persist, set_persist); +static DEVICE_ATTR_RW(persist); static int add_persist_attributes(struct device *dev) { @@ -340,17 +335,15 @@ static void remove_persist_attributes(struct device *dev) #ifdef CONFIG_PM_RUNTIME -static ssize_t -show_connected_duration(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t connected_duration_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_device *udev = to_usb_device(dev); return sprintf(buf, "%u\n", jiffies_to_msecs(jiffies - udev->connect_time)); } - -static DEVICE_ATTR(connected_duration, S_IRUGO, show_connected_duration, NULL); +static DEVICE_ATTR_RO(connected_duration); /* * If the device is resumed, the last time the device was suspended has @@ -359,9 +352,8 @@ static DEVICE_ATTR(connected_duration, S_IRUGO, show_connected_duration, NULL); * * If the device is suspended, the active_duration is up-to-date. */ -static ssize_t -show_active_duration(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t active_duration_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_device *udev = to_usb_device(dev); int duration; @@ -372,18 +364,17 @@ show_active_duration(struct device *dev, struct device_attribute *attr, duration = jiffies_to_msecs(udev->active_duration); return sprintf(buf, "%u\n", duration); } +static DEVICE_ATTR_RO(active_duration); -static DEVICE_ATTR(active_duration, S_IRUGO, show_active_duration, NULL); - -static ssize_t -show_autosuspend(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t autosuspend_show(struct device *dev, + struct device_attribute *attr, char *buf) { return sprintf(buf, "%d\n", dev->power.autosuspend_delay / 1000); } -static ssize_t -set_autosuspend(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t autosuspend_store(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) { int value; @@ -394,9 +385,7 @@ set_autosuspend(struct device *dev, struct device_attribute *attr, pm_runtime_set_autosuspend_delay(dev, value * 1000); return count; } - -static DEVICE_ATTR(autosuspend, S_IRUGO | S_IWUSR, - show_autosuspend, set_autosuspend); +static DEVICE_ATTR_RW(autosuspend); static const char on_string[] = "on"; static const char auto_string[] = "auto"; @@ -411,8 +400,8 @@ static void warn_level(void) { } } -static ssize_t -show_level(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t level_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_device *udev = to_usb_device(dev); const char *p = auto_string; @@ -423,9 +412,8 @@ show_level(struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%s\n", p); } -static ssize_t -set_level(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t level_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct usb_device *udev = to_usb_device(dev); int len = count; @@ -453,12 +441,10 @@ set_level(struct device *dev, struct device_attribute *attr, usb_unlock_device(udev); return rc; } +static DEVICE_ATTR_RW(level); -static DEVICE_ATTR(level, S_IRUGO | S_IWUSR, show_level, set_level); - -static ssize_t -show_usb2_hardware_lpm(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t usb2_hardware_lpm_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_device *udev = to_usb_device(dev); const char *p; @@ -471,9 +457,9 @@ show_usb2_hardware_lpm(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%s\n", p); } -static ssize_t -set_usb2_hardware_lpm(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t usb2_hardware_lpm_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct usb_device *udev = to_usb_device(dev); bool value; @@ -493,21 +479,19 @@ set_usb2_hardware_lpm(struct device *dev, struct device_attribute *attr, return ret; } +static DEVICE_ATTR_RW(usb2_hardware_lpm); -static DEVICE_ATTR(usb2_hardware_lpm, S_IRUGO | S_IWUSR, show_usb2_hardware_lpm, - set_usb2_hardware_lpm); - -static ssize_t -show_usb2_lpm_l1_timeout(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t usb2_lpm_l1_timeout_show(struct device *dev, + struct device_attribute *attr, + char *buf) { struct usb_device *udev = to_usb_device(dev); return sprintf(buf, "%d\n", udev->l1_params.timeout); } -static ssize_t -set_usb2_lpm_l1_timeout(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t usb2_lpm_l1_timeout_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct usb_device *udev = to_usb_device(dev); u16 timeout; @@ -519,21 +503,18 @@ set_usb2_lpm_l1_timeout(struct device *dev, struct device_attribute *attr, return count; } +static DEVICE_ATTR_RW(usb2_lpm_l1_timeout); -static DEVICE_ATTR(usb2_lpm_l1_timeout, S_IRUGO | S_IWUSR, - show_usb2_lpm_l1_timeout, set_usb2_lpm_l1_timeout); - -static ssize_t -show_usb2_lpm_besl(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t usb2_lpm_besl_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_device *udev = to_usb_device(dev); return sprintf(buf, "%d\n", udev->l1_params.besl); } -static ssize_t -set_usb2_lpm_besl(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t usb2_lpm_besl_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct usb_device *udev = to_usb_device(dev); u8 besl; @@ -545,9 +526,7 @@ set_usb2_lpm_besl(struct device *dev, struct device_attribute *attr, return count; } - -static DEVICE_ATTR(usb2_lpm_besl, S_IRUGO | S_IWUSR, - show_usb2_lpm_besl, set_usb2_lpm_besl); +static DEVICE_ATTR_RW(usb2_lpm_besl); static struct attribute *usb2_hardware_lpm_attr[] = { &dev_attr_usb2_hardware_lpm.attr, @@ -604,7 +583,7 @@ static void remove_power_attributes(struct device *dev) /* Descriptor fields */ #define usb_descriptor_attr_le16(field, format_string) \ static ssize_t \ -show_##field(struct device *dev, struct device_attribute *attr, \ +field##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ struct usb_device *udev; \ @@ -613,15 +592,15 @@ show_##field(struct device *dev, struct device_attribute *attr, \ return sprintf(buf, format_string, \ le16_to_cpu(udev->descriptor.field)); \ } \ -static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL); +static DEVICE_ATTR_RO(field) -usb_descriptor_attr_le16(idVendor, "%04x\n") -usb_descriptor_attr_le16(idProduct, "%04x\n") -usb_descriptor_attr_le16(bcdDevice, "%04x\n") +usb_descriptor_attr_le16(idVendor, "%04x\n"); +usb_descriptor_attr_le16(idProduct, "%04x\n"); +usb_descriptor_attr_le16(bcdDevice, "%04x\n"); #define usb_descriptor_attr(field, format_string) \ static ssize_t \ -show_##field(struct device *dev, struct device_attribute *attr, \ +field##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ struct usb_device *udev; \ @@ -629,34 +608,31 @@ show_##field(struct device *dev, struct device_attribute *attr, \ udev = to_usb_device(dev); \ return sprintf(buf, format_string, udev->descriptor.field); \ } \ -static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL); - -usb_descriptor_attr(bDeviceClass, "%02x\n") -usb_descriptor_attr(bDeviceSubClass, "%02x\n") -usb_descriptor_attr(bDeviceProtocol, "%02x\n") -usb_descriptor_attr(bNumConfigurations, "%d\n") -usb_descriptor_attr(bMaxPacketSize0, "%d\n") +static DEVICE_ATTR_RO(field) +usb_descriptor_attr(bDeviceClass, "%02x\n"); +usb_descriptor_attr(bDeviceSubClass, "%02x\n"); +usb_descriptor_attr(bDeviceProtocol, "%02x\n"); +usb_descriptor_attr(bNumConfigurations, "%d\n"); +usb_descriptor_attr(bMaxPacketSize0, "%d\n"); /* show if the device is authorized (1) or not (0) */ -static ssize_t usb_dev_authorized_show(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t authorized_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_device *usb_dev = to_usb_device(dev); return snprintf(buf, PAGE_SIZE, "%u\n", usb_dev->authorized); } - /* * Authorize a device to be used in the system * * Writing a 0 deauthorizes the device, writing a 1 authorizes it. */ -static ssize_t usb_dev_authorized_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t size) +static ssize_t authorized_store(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t size) { ssize_t result; struct usb_device *usb_dev = to_usb_device(dev); @@ -670,14 +646,12 @@ static ssize_t usb_dev_authorized_store(struct device *dev, result = usb_authorize_device(usb_dev); return result < 0? result : size; } - -static DEVICE_ATTR_IGNORE_LOCKDEP(authorized, 0644, - usb_dev_authorized_show, usb_dev_authorized_store); +static DEVICE_ATTR_IGNORE_LOCKDEP(authorized, S_IRUGO | S_IWUSR, + authorized_show, authorized_store); /* "Safely remove a device" */ -static ssize_t usb_remove_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t remove_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct usb_device *udev = to_usb_device(dev); int rc = 0; @@ -694,7 +668,7 @@ static ssize_t usb_remove_store(struct device *dev, usb_unlock_device(udev); return rc; } -static DEVICE_ATTR_IGNORE_LOCKDEP(remove, 0200, NULL, usb_remove_store); +static DEVICE_ATTR_IGNORE_LOCKDEP(remove, S_IWUSR, NULL, remove_store); static struct attribute *dev_attrs[] = { @@ -853,7 +827,7 @@ void usb_remove_sysfs_dev_files(struct usb_device *udev) /* Interface Accociation Descriptor fields */ #define usb_intf_assoc_attr(field, format_string) \ static ssize_t \ -show_iad_##field(struct device *dev, struct device_attribute *attr, \ +iad_##field##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ @@ -861,18 +835,18 @@ show_iad_##field(struct device *dev, struct device_attribute *attr, \ return sprintf(buf, format_string, \ intf->intf_assoc->field); \ } \ -static DEVICE_ATTR(iad_##field, S_IRUGO, show_iad_##field, NULL); +static DEVICE_ATTR_RO(iad_##field) -usb_intf_assoc_attr(bFirstInterface, "%02x\n") -usb_intf_assoc_attr(bInterfaceCount, "%02d\n") -usb_intf_assoc_attr(bFunctionClass, "%02x\n") -usb_intf_assoc_attr(bFunctionSubClass, "%02x\n") -usb_intf_assoc_attr(bFunctionProtocol, "%02x\n") +usb_intf_assoc_attr(bFirstInterface, "%02x\n"); +usb_intf_assoc_attr(bInterfaceCount, "%02d\n"); +usb_intf_assoc_attr(bFunctionClass, "%02x\n"); +usb_intf_assoc_attr(bFunctionSubClass, "%02x\n"); +usb_intf_assoc_attr(bFunctionProtocol, "%02x\n"); /* Interface fields */ #define usb_intf_attr(field, format_string) \ static ssize_t \ -show_##field(struct device *dev, struct device_attribute *attr, \ +field##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ struct usb_interface *intf = to_usb_interface(dev); \ @@ -880,17 +854,17 @@ show_##field(struct device *dev, struct device_attribute *attr, \ return sprintf(buf, format_string, \ intf->cur_altsetting->desc.field); \ } \ -static DEVICE_ATTR(field, S_IRUGO, show_##field, NULL); +static DEVICE_ATTR_RO(field) -usb_intf_attr(bInterfaceNumber, "%02x\n") -usb_intf_attr(bAlternateSetting, "%2d\n") -usb_intf_attr(bNumEndpoints, "%02x\n") -usb_intf_attr(bInterfaceClass, "%02x\n") -usb_intf_attr(bInterfaceSubClass, "%02x\n") -usb_intf_attr(bInterfaceProtocol, "%02x\n") +usb_intf_attr(bInterfaceNumber, "%02x\n"); +usb_intf_attr(bAlternateSetting, "%2d\n"); +usb_intf_attr(bNumEndpoints, "%02x\n"); +usb_intf_attr(bInterfaceClass, "%02x\n"); +usb_intf_attr(bInterfaceSubClass, "%02x\n"); +usb_intf_attr(bInterfaceProtocol, "%02x\n"); -static ssize_t show_interface_string(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t interface_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_interface *intf; char *string; @@ -903,10 +877,10 @@ static ssize_t show_interface_string(struct device *dev, return 0; return sprintf(buf, "%s\n", string); } -static DEVICE_ATTR(interface, S_IRUGO, show_interface_string, NULL); +static DEVICE_ATTR_RO(interface); -static ssize_t show_modalias(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_interface *intf; struct usb_device *udev; @@ -929,10 +903,11 @@ static ssize_t show_modalias(struct device *dev, alt->desc.bInterfaceProtocol, alt->desc.bInterfaceNumber); } -static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL); +static DEVICE_ATTR_RO(modalias); -static ssize_t show_supports_autosuspend(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t supports_autosuspend_show(struct device *dev, + struct device_attribute *attr, + char *buf) { struct usb_interface *intf; struct usb_device *udev; @@ -952,7 +927,7 @@ static ssize_t show_supports_autosuspend(struct device *dev, return ret; } -static DEVICE_ATTR(supports_autosuspend, S_IRUGO, show_supports_autosuspend, NULL); +static DEVICE_ATTR_RO(supports_autosuspend); static struct attribute *intf_attrs[] = { &dev_attr_bInterfaceNumber.attr, diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 16927fa88fbd..c12bc790a6a7 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -7,6 +7,7 @@ #include <linux/usb.h> #include <linux/wait.h> #include <linux/usb/hcd.h> +#include <linux/scatterlist.h> #define to_urb(d) container_of(d, struct urb, kref) @@ -54,12 +55,12 @@ EXPORT_SYMBOL_GPL(usb_init_urb); * Creates an urb for the USB driver to use, initializes a few internal * structures, incrementes the usage counter, and returns a pointer to it. * - * If no memory is available, NULL is returned. - * * If the driver want to use this urb for interrupt, control, or bulk * endpoints, pass '0' as the number of iso packets. * * The driver must call usb_free_urb() when it is finished with the urb. + * + * Return: A pointer to the new urb, or %NULL if no memory is available. */ struct urb *usb_alloc_urb(int iso_packets, gfp_t mem_flags) { @@ -102,7 +103,7 @@ EXPORT_SYMBOL_GPL(usb_free_urb); * host controller driver. This allows proper reference counting to happen * for urbs. * - * A pointer to the urb with the incremented reference counter is returned. + * Return: A pointer to the urb with the incremented reference counter. */ struct urb *usb_get_urb(struct urb *urb) { @@ -199,13 +200,12 @@ EXPORT_SYMBOL_GPL(usb_unanchor_urb); * the particular kind of transfer, although they will not initialize * any transfer flags. * - * Successful submissions return 0; otherwise this routine returns a - * negative error number. If the submission is successful, the complete() - * callback from the URB will be called exactly once, when the USB core and - * Host Controller Driver (HCD) are finished with the URB. When the completion - * function is called, control of the URB is returned to the device - * driver which issued the request. The completion handler may then - * immediately free or reuse that URB. + * If the submission is successful, the complete() callback from the URB + * will be called exactly once, when the USB core and Host Controller Driver + * (HCD) are finished with the URB. When the completion function is called, + * control of the URB is returned to the device driver which issued the + * request. The completion handler may then immediately free or reuse that + * URB. * * With few exceptions, USB device drivers should never access URB fields * provided by usbcore or the HCD until its complete() is called. @@ -240,6 +240,9 @@ EXPORT_SYMBOL_GPL(usb_unanchor_urb); * that are standardized in the USB 2.0 specification. For bulk * endpoints, a synchronous usb_bulk_msg() call is available. * + * Return: + * 0 on successful submissions. A negative error number otherwise. + * * Request Queuing: * * URBs may be submitted to endpoints before previous ones complete, to @@ -413,6 +416,14 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) urb->iso_frame_desc[n].status = -EXDEV; urb->iso_frame_desc[n].actual_length = 0; } + } else if (urb->num_sgs && !urb->dev->bus->no_sg_constraint && + dev->speed != USB_SPEED_WIRELESS) { + struct scatterlist *sg; + int i; + + for_each_sg(urb->sg, sg, urb->num_sgs - 1, i) + if (sg->length % max) + return -EINVAL; } /* the I/O buffer must be mapped/unmapped, except when length=0 */ @@ -564,6 +575,9 @@ EXPORT_SYMBOL_GPL(usb_submit_urb); * particular, when a driver calls this routine, it must insure that the * completion handler cannot deallocate the URB. * + * Return: -EINPROGRESS on success. See description for other values on + * failure. + * * Unlinking and Endpoint Queues: * * [The behaviors and guarantees described below do not apply to virtual @@ -838,6 +852,8 @@ EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs); * * Call this is you want to be sure all an anchor's * URBs have finished + * + * Return: Non-zero if the anchor became unused. Zero on timeout. */ int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor, unsigned int timeout) @@ -851,8 +867,11 @@ EXPORT_SYMBOL_GPL(usb_wait_anchor_empty_timeout); * usb_get_from_anchor - get an anchor's oldest urb * @anchor: the anchor whose urb you want * - * this will take the oldest urb from an anchor, + * This will take the oldest urb from an anchor, * unanchor and return it + * + * Return: The oldest urb from @anchor, or %NULL if @anchor has no + * urbs associated with it. */ struct urb *usb_get_from_anchor(struct usb_anchor *anchor) { @@ -901,7 +920,7 @@ EXPORT_SYMBOL_GPL(usb_scuttle_anchored_urbs); * usb_anchor_empty - is an anchor empty * @anchor: the anchor you want to query * - * returns 1 if the anchor has no urbs associated with it + * Return: 1 if the anchor has no urbs associated with it. */ int usb_anchor_empty(struct usb_anchor *anchor) { diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 7dad603dde43..0a6ee2e70b25 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -68,6 +68,8 @@ MODULE_PARM_DESC(autosuspend, "default autosuspend delay"); * @alt_num: alternate interface setting number to search for. * * Search the configuration's interface cache for the given alt setting. + * + * Return: The alternate setting, if found. %NULL otherwise. */ struct usb_host_interface *usb_find_alt_setting( struct usb_host_config *config, @@ -103,8 +105,7 @@ EXPORT_SYMBOL_GPL(usb_find_alt_setting); * @ifnum: the desired interface * * This walks the device descriptor for the currently active configuration - * and returns a pointer to the interface with that particular interface - * number, or null. + * to find the interface object with the particular interface number. * * Note that configuration descriptors are not required to assign interface * numbers sequentially, so that it would be incorrect to assume that @@ -115,6 +116,9 @@ EXPORT_SYMBOL_GPL(usb_find_alt_setting); * * Don't call this function unless you are bound to one of the interfaces * on this device or you have locked the device! + * + * Return: A pointer to the interface that has @ifnum as interface number, + * if found. %NULL otherwise. */ struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev, unsigned ifnum) @@ -139,8 +143,7 @@ EXPORT_SYMBOL_GPL(usb_ifnum_to_if); * @altnum: the desired alternate setting number * * This searches the altsetting array of the specified interface for - * an entry with the correct bAlternateSetting value and returns a pointer - * to that entry, or null. + * an entry with the correct bAlternateSetting value. * * Note that altsettings need not be stored sequentially by number, so * it would be incorrect to assume that the first altsetting entry in @@ -149,6 +152,9 @@ EXPORT_SYMBOL_GPL(usb_ifnum_to_if); * * Don't call this function unless you are bound to the intf interface * or you have locked the device! + * + * Return: A pointer to the entry of the altsetting array of @intf that + * has @altnum as the alternate setting number. %NULL if not found. */ struct usb_host_interface *usb_altnum_to_altsetting( const struct usb_interface *intf, @@ -191,6 +197,8 @@ static int __find_interface(struct device *dev, void *data) * This walks the bus device list and returns a pointer to the interface * with the matching minor and driver. Note, this only works for devices * that share the USB major number. + * + * Return: A pointer to the interface with the matching major and @minor. */ struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor) { @@ -390,6 +398,9 @@ static unsigned usb_bus_is_wusb(struct usb_bus *bus) * controllers) should ever call this. * * This call may not be used in a non-sleeping context. + * + * Return: On success, a pointer to the allocated usb device. %NULL on + * failure. */ struct usb_device *usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1) @@ -501,7 +512,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent, * their probe() methods, when they bind to an interface, and release * them by calling usb_put_dev(), in their disconnect() methods. * - * A pointer to the device with the incremented reference counter is returned. + * Return: A pointer to the device with the incremented reference counter. */ struct usb_device *usb_get_dev(struct usb_device *dev) { @@ -535,8 +546,7 @@ EXPORT_SYMBOL_GPL(usb_put_dev); * their probe() methods, when they bind to an interface, and release * them by calling usb_put_intf(), in their disconnect() methods. * - * A pointer to the interface with the incremented reference counter is - * returned. + * Return: A pointer to the interface with the incremented reference counter. */ struct usb_interface *usb_get_intf(struct usb_interface *intf) { @@ -589,7 +599,7 @@ EXPORT_SYMBOL_GPL(usb_put_intf); * disconnect; in some drivers (such as usb-storage) the disconnect() * or suspend() method will block waiting for a device reset to complete. * - * Returns a negative error code for failure, otherwise 0. + * Return: A negative error code for failure, otherwise 0. */ int usb_lock_device_for_reset(struct usb_device *udev, const struct usb_interface *iface) @@ -628,14 +638,15 @@ EXPORT_SYMBOL_GPL(usb_lock_device_for_reset); * usb_get_current_frame_number - return current bus frame number * @dev: the device whose bus is being queried * - * Returns the current frame number for the USB host controller - * used with the given USB device. This can be used when scheduling + * Return: The current frame number for the USB host controller used + * with the given USB device. This can be used when scheduling * isochronous requests. * - * Note that different kinds of host controller have different - * "scheduling horizons". While one type might support scheduling only - * 32 frames into the future, others could support scheduling up to - * 1024 frames into the future. + * Note: Different kinds of host controller have different "scheduling + * horizons". While one type might support scheduling only 32 frames + * into the future, others could support scheduling up to 1024 frames + * into the future. + * */ int usb_get_current_frame_number(struct usb_device *dev) { @@ -685,11 +696,12 @@ EXPORT_SYMBOL_GPL(__usb_get_extra_descriptor); * @mem_flags: affect whether allocation may block * @dma: used to return DMA address of buffer * - * Return value is either null (indicating no buffer could be allocated), or - * the cpu-space pointer to a buffer that may be used to perform DMA to the + * Return: Either null (indicating no buffer could be allocated), or the + * cpu-space pointer to a buffer that may be used to perform DMA to the * specified device. Such cpu-space buffers are returned along with the DMA * address (through the pointer provided). * + * Note: * These buffers are used with URB_NO_xxx_DMA_MAP set in urb->transfer_flags * to avoid behaviors like using "DMA bounce buffers", or thrashing IOMMU * hardware during URB completion/resubmit. The implementation varies between @@ -735,17 +747,18 @@ EXPORT_SYMBOL_GPL(usb_free_coherent); * usb_buffer_map - create DMA mapping(s) for an urb * @urb: urb whose transfer_buffer/setup_packet will be mapped * - * Return value is either null (indicating no buffer could be mapped), or - * the parameter. URB_NO_TRANSFER_DMA_MAP is - * added to urb->transfer_flags if the operation succeeds. If the device - * is connected to this system through a non-DMA controller, this operation - * always succeeds. + * URB_NO_TRANSFER_DMA_MAP is added to urb->transfer_flags if the operation + * succeeds. If the device is connected to this system through a non-DMA + * controller, this operation always succeeds. * * This call would normally be used for an urb which is reused, perhaps * as the target of a large periodic transfer, with usb_buffer_dmasync() * calls to synchronize memory and dma state. * * Reverse the effect of this call with usb_buffer_unmap(). + * + * Return: Either %NULL (indicating no buffer could be mapped), or @urb. + * */ #if 0 struct urb *usb_buffer_map(struct urb *urb) @@ -850,9 +863,10 @@ EXPORT_SYMBOL_GPL(usb_buffer_unmap); * @sg: the scatterlist to map * @nents: the number of entries in the scatterlist * - * Return value is either < 0 (indicating no buffers could be mapped), or - * the number of DMA mapping array entries in the scatterlist. + * Return: Either < 0 (indicating no buffers could be mapped), or the + * number of DMA mapping array entries in the scatterlist. * + * Note: * The caller is responsible for placing the resulting DMA addresses from * the scatterlist into URB transfer buffer pointers, and for setting the * URB_NO_TRANSFER_DMA_MAP transfer flag in each of those URBs. diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 4c855e598c84..f969ea266acb 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -41,6 +41,38 @@ config USB_DWC3_DUAL_ROLE endchoice +comment "Platform Glue Driver Support" + +config USB_DWC3_OMAP + tristate "Texas Instruments OMAP5 and similar Platforms" + depends on EXTCON + default USB_DWC3 + help + Some platforms from Texas Instruments like OMAP5, DRA7xxx and + AM437x use this IP for USB2/3 functionality. + + Say 'Y' or 'M' here if you have one such device + +config USB_DWC3_EXYNOS + tristate "Samsung Exynos Platform" + default USB_DWC3 + help + Recent Exynos5 SoCs ship with one DesignWare Core USB3 IP inside, + say 'Y' or 'M' if you have one such device. + +config USB_DWC3_PCI + tristate "PCIe-based Platforms" + depends on PCI + default USB_DWC3 + help + If you're using the DesignWare Core IP with a PCIe, please say + 'Y' or 'M' here. + + One such PCIe-based platform is Synopsys' PCIe HAPS model of + this IP. + +comment "Debugging features" + config USB_DWC3_DEBUG bool "Enable Debugging Messages" help diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile index 0c7ac92582be..dd1760145c46 100644 --- a/drivers/usb/dwc3/Makefile +++ b/drivers/usb/dwc3/Makefile @@ -27,15 +27,8 @@ endif # the entire driver (with all its glue layers) on several architectures # and make sure it compiles fine. This will also help with allmodconfig # and allyesconfig builds. -# -# The only exception is the PCI glue layer, but that's only because -# PCI doesn't provide nops if CONFIG_PCI isn't enabled. ## -obj-$(CONFIG_USB_DWC3) += dwc3-omap.o -obj-$(CONFIG_USB_DWC3) += dwc3-exynos.o - -ifneq ($(CONFIG_PCI),) - obj-$(CONFIG_USB_DWC3) += dwc3-pci.o -endif - +obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o +obj-$(CONFIG_USB_DWC3_EXYNOS) += dwc3-exynos.o +obj-$(CONFIG_USB_DWC3_PCI) += dwc3-pci.o diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 358375e0b291..474162e9d01d 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -6,34 +6,17 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/module.h> @@ -50,20 +33,18 @@ #include <linux/dma-mapping.h> #include <linux/of.h> -#include <linux/usb/otg.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/usb/of.h> +#include <linux/usb/otg.h> +#include "platform_data.h" #include "core.h" #include "gadget.h" #include "io.h" #include "debug.h" -static char *maximum_speed = "super"; -module_param(maximum_speed, charp, 0); -MODULE_PARM_DESC(maximum_speed, "Maximum supported speed."); - /* -------------------------------------------------------------------------- */ void dwc3_set_mode(struct dwc3 *dwc, u32 mode) @@ -236,7 +217,7 @@ static int dwc3_event_buffers_setup(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n), upper_32_bits(evt->dma)); dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n), - evt->length & 0xffff); + DWC3_GEVNTSIZ_SIZE(evt->length)); dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(n), 0); } @@ -255,7 +236,8 @@ static void dwc3_event_buffers_cleanup(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(n), 0); dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n), 0); - dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n), 0); + dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n), DWC3_GEVNTSIZ_INTMASK + | DWC3_GEVNTSIZ_SIZE(0)); dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(n), 0); } } @@ -367,18 +349,17 @@ static void dwc3_core_exit(struct dwc3 *dwc) static int dwc3_probe(struct platform_device *pdev) { - struct device_node *node = pdev->dev.of_node; + struct device *dev = &pdev->dev; + struct dwc3_platform_data *pdata = dev_get_platdata(dev); + struct device_node *node = dev->of_node; struct resource *res; struct dwc3 *dwc; - struct device *dev = &pdev->dev; int ret = -ENOMEM; void __iomem *regs; void *mem; - u8 mode; - mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL); if (!mem) { dev_err(dev, "not enough memory\n"); @@ -402,38 +383,32 @@ static int dwc3_probe(struct platform_device *pdev) dev_err(dev, "missing memory resource\n"); return -ENODEV; } - dwc->xhci_resources[0].start = res->start; - dwc->xhci_resources[0].end = dwc->xhci_resources[0].start + - DWC3_XHCI_REGS_END; - dwc->xhci_resources[0].flags = res->flags; - dwc->xhci_resources[0].name = res->name; - - /* - * Request memory region but exclude xHCI regs, - * since it will be requested by the xhci-plat driver. - */ - res = devm_request_mem_region(dev, res->start + DWC3_GLOBALS_REGS_START, - resource_size(res) - DWC3_GLOBALS_REGS_START, - dev_name(dev)); - if (!res) { - dev_err(dev, "can't request mem region\n"); - return -ENOMEM; - } - - regs = devm_ioremap_nocache(dev, res->start, resource_size(res)); - if (!regs) { - dev_err(dev, "ioremap failed\n"); - return -ENOMEM; - } if (node) { + dwc->maximum_speed = of_usb_get_maximum_speed(node); + dwc->usb2_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 0); dwc->usb3_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 1); + + dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize"); + dwc->dr_mode = of_usb_get_dr_mode(node); + } else if (pdata) { + dwc->maximum_speed = pdata->maximum_speed; + + dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); + dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3); + + dwc->needs_fifo_resize = pdata->tx_fifo_resize; + dwc->dr_mode = pdata->dr_mode; } else { dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3); } + /* default to superspeed if no maximum_speed passed */ + if (dwc->maximum_speed == USB_SPEED_UNKNOWN) + dwc->maximum_speed = USB_SPEED_SUPER; + if (IS_ERR(dwc->usb2_phy)) { ret = PTR_ERR(dwc->usb2_phy); @@ -464,6 +439,22 @@ static int dwc3_probe(struct platform_device *pdev) return -EPROBE_DEFER; } + dwc->xhci_resources[0].start = res->start; + dwc->xhci_resources[0].end = dwc->xhci_resources[0].start + + DWC3_XHCI_REGS_END; + dwc->xhci_resources[0].flags = res->flags; + dwc->xhci_resources[0].name = res->name; + + res->start += DWC3_GLOBALS_REGS_START; + + /* + * Request memory region but exclude xHCI regs, + * since it will be requested by the xhci-plat driver. + */ + regs = devm_ioremap_resource(dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + usb_phy_set_suspend(dwc->usb2_phy, 0); usb_phy_set_suspend(dwc->usb3_phy, 0); @@ -478,19 +469,6 @@ static int dwc3_probe(struct platform_device *pdev) dev->dma_parms = dev->parent->dma_parms; dma_set_coherent_mask(dev, dev->parent->coherent_dma_mask); - if (!strncmp("super", maximum_speed, 5)) - dwc->maximum_speed = DWC3_DCFG_SUPERSPEED; - else if (!strncmp("high", maximum_speed, 4)) - dwc->maximum_speed = DWC3_DCFG_HIGHSPEED; - else if (!strncmp("full", maximum_speed, 4)) - dwc->maximum_speed = DWC3_DCFG_FULLSPEED1; - else if (!strncmp("low", maximum_speed, 3)) - dwc->maximum_speed = DWC3_DCFG_LOWSPEED; - else - dwc->maximum_speed = DWC3_DCFG_SUPERSPEED; - - dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize"); - pm_runtime_enable(dev); pm_runtime_get_sync(dev); pm_runtime_forbid(dev); @@ -517,14 +495,15 @@ static int dwc3_probe(struct platform_device *pdev) } if (IS_ENABLED(CONFIG_USB_DWC3_HOST)) - mode = DWC3_MODE_HOST; + dwc->dr_mode = USB_DR_MODE_HOST; else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET)) - mode = DWC3_MODE_DEVICE; - else - mode = DWC3_MODE_DRD; + dwc->dr_mode = USB_DR_MODE_PERIPHERAL; + + if (dwc->dr_mode == USB_DR_MODE_UNKNOWN) + dwc->dr_mode = USB_DR_MODE_OTG; - switch (mode) { - case DWC3_MODE_DEVICE: + switch (dwc->dr_mode) { + case USB_DR_MODE_PERIPHERAL: dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE); ret = dwc3_gadget_init(dwc); if (ret) { @@ -532,7 +511,7 @@ static int dwc3_probe(struct platform_device *pdev) goto err2; } break; - case DWC3_MODE_HOST: + case USB_DR_MODE_HOST: dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST); ret = dwc3_host_init(dwc); if (ret) { @@ -540,7 +519,7 @@ static int dwc3_probe(struct platform_device *pdev) goto err2; } break; - case DWC3_MODE_DRD: + case USB_DR_MODE_OTG: dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG); ret = dwc3_host_init(dwc); if (ret) { @@ -555,10 +534,9 @@ static int dwc3_probe(struct platform_device *pdev) } break; default: - dev_err(dev, "Unsupported mode of operation %d\n", mode); + dev_err(dev, "Unsupported mode of operation %d\n", dwc->dr_mode); goto err2; } - dwc->mode = mode; ret = dwc3_debugfs_init(dwc); if (ret) { @@ -571,14 +549,14 @@ static int dwc3_probe(struct platform_device *pdev) return 0; err3: - switch (mode) { - case DWC3_MODE_DEVICE: + switch (dwc->dr_mode) { + case USB_DR_MODE_PERIPHERAL: dwc3_gadget_exit(dwc); break; - case DWC3_MODE_HOST: + case USB_DR_MODE_HOST: dwc3_host_exit(dwc); break; - case DWC3_MODE_DRD: + case USB_DR_MODE_OTG: dwc3_host_exit(dwc); dwc3_gadget_exit(dwc); break; @@ -611,14 +589,14 @@ static int dwc3_remove(struct platform_device *pdev) dwc3_debugfs_exit(dwc); - switch (dwc->mode) { - case DWC3_MODE_DEVICE: + switch (dwc->dr_mode) { + case USB_DR_MODE_PERIPHERAL: dwc3_gadget_exit(dwc); break; - case DWC3_MODE_HOST: + case USB_DR_MODE_HOST: dwc3_host_exit(dwc); break; - case DWC3_MODE_DRD: + case USB_DR_MODE_OTG: dwc3_host_exit(dwc); dwc3_gadget_exit(dwc); break; @@ -642,12 +620,12 @@ static int dwc3_prepare(struct device *dev) spin_lock_irqsave(&dwc->lock, flags); - switch (dwc->mode) { - case DWC3_MODE_DEVICE: - case DWC3_MODE_DRD: + switch (dwc->dr_mode) { + case USB_DR_MODE_PERIPHERAL: + case USB_DR_MODE_OTG: dwc3_gadget_prepare(dwc); /* FALLTHROUGH */ - case DWC3_MODE_HOST: + case USB_DR_MODE_HOST: default: dwc3_event_buffers_cleanup(dwc); break; @@ -665,12 +643,12 @@ static void dwc3_complete(struct device *dev) spin_lock_irqsave(&dwc->lock, flags); - switch (dwc->mode) { - case DWC3_MODE_DEVICE: - case DWC3_MODE_DRD: + switch (dwc->dr_mode) { + case USB_DR_MODE_PERIPHERAL: + case USB_DR_MODE_OTG: dwc3_gadget_complete(dwc); /* FALLTHROUGH */ - case DWC3_MODE_HOST: + case USB_DR_MODE_HOST: default: dwc3_event_buffers_setup(dwc); break; @@ -686,12 +664,12 @@ static int dwc3_suspend(struct device *dev) spin_lock_irqsave(&dwc->lock, flags); - switch (dwc->mode) { - case DWC3_MODE_DEVICE: - case DWC3_MODE_DRD: + switch (dwc->dr_mode) { + case USB_DR_MODE_PERIPHERAL: + case USB_DR_MODE_OTG: dwc3_gadget_suspend(dwc); /* FALLTHROUGH */ - case DWC3_MODE_HOST: + case USB_DR_MODE_HOST: default: /* do nothing */ break; @@ -719,12 +697,12 @@ static int dwc3_resume(struct device *dev) dwc3_writel(dwc->regs, DWC3_GCTL, dwc->gctl); - switch (dwc->mode) { - case DWC3_MODE_DEVICE: - case DWC3_MODE_DRD: + switch (dwc->dr_mode) { + case USB_DR_MODE_PERIPHERAL: + case USB_DR_MODE_OTG: dwc3_gadget_resume(dwc); /* FALLTHROUGH */ - case DWC3_MODE_HOST: + case USB_DR_MODE_HOST: default: /* do nothing */ break; @@ -754,6 +732,9 @@ static const struct dev_pm_ops dwc3_dev_pm_ops = { #ifdef CONFIG_OF static const struct of_device_id of_dwc3_match[] = { { + .compatible = "snps,dwc3" + }, + { .compatible = "synopsys,dwc3" }, { }, @@ -775,5 +756,5 @@ module_platform_driver(dwc3_driver); MODULE_ALIAS("platform:dwc3"); MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); -MODULE_LICENSE("Dual BSD/GPL"); +MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver"); diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 27dad993b007..f8af8d44af85 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #ifndef __DRIVERS_USB_DWC3_CORE_H @@ -49,6 +29,7 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/usb/otg.h> /* Global constants */ #define DWC3_EP0_BOUNCE_SIZE 512 @@ -194,6 +175,10 @@ #define DWC3_GTXFIFOSIZ_TXFDEF(n) ((n) & 0xffff) #define DWC3_GTXFIFOSIZ_TXFSTADDR(n) ((n) & 0xffff0000) +/* Global Event Size Registers */ +#define DWC3_GEVNTSIZ_INTMASK (1 << 31) +#define DWC3_GEVNTSIZ_SIZE(n) ((n) & 0xffff) + /* Global HWPARAMS1 Register */ #define DWC3_GHWPARAMS1_EN_PWROPT(n) (((n) & (3 << 24)) >> 24) #define DWC3_GHWPARAMS1_EN_PWROPT_NO 0 @@ -207,7 +192,6 @@ #define DWC3_MAX_HIBER_SCRATCHBUFS 15 /* Device Configuration Register */ -#define DWC3_DCFG_LPM_CAP (1 << 22) #define DWC3_DCFG_DEVADDR(addr) ((addr) << 3) #define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0x7f) @@ -367,7 +351,6 @@ struct dwc3_trb; /** * struct dwc3_event_buffer - Software event buffer representation - * @list: a list of event buffers * @buf: _THE_ buffer * @length: size of this buffer * @lpos: event offset @@ -415,7 +398,7 @@ struct dwc3_event_buffer { * @number: endpoint number (1 - 15) * @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK * @resource_index: Resource transfer index - * @interval: the intervall on which the ISOC transfer is started + * @interval: the interval on which the ISOC transfer is started * @name: a human readable name e.g. ep1out-bulk * @direction: true for TX, false for RX * @stream_capable: true when streams are enabled @@ -566,11 +549,6 @@ struct dwc3_hwparams { /* HWPARAMS0 */ #define DWC3_MODE(n) ((n) & 0x7) -#define DWC3_MODE_DEVICE 0 -#define DWC3_MODE_HOST 1 -#define DWC3_MODE_DRD 2 -#define DWC3_MODE_HUB 3 - #define DWC3_MDWIDTH(n) (((n) & 0xff00) >> 8) /* HWPARAMS1 */ @@ -632,7 +610,7 @@ struct dwc3_scratchpad_array { * @u1u2: only used on revisions <1.83a for workaround * @maximum_speed: maximum speed requested (mainly for testing purposes) * @revision: revision register contents - * @mode: mode of operation + * @dr_mode: requested mode of operation * @usb2_phy: pointer to USB2 PHY * @usb3_phy: pointer to USB3 PHY * @dcfg: saved contents of DCFG register @@ -690,6 +668,8 @@ struct dwc3 { void __iomem *regs; size_t regs_size; + enum usb_dr_mode dr_mode; + /* used for suspend/resume */ u32 dcfg; u32 gctl; @@ -698,7 +678,6 @@ struct dwc3 { u32 u1u2; u32 maximum_speed; u32 revision; - u32 mode; #define DWC3_REVISION_173A 0x5533173a #define DWC3_REVISION_175A 0x5533175a diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h index 5894ee8222af..fceb39dc4bba 100644 --- a/drivers/usb/dwc3/debug.h +++ b/drivers/usb/dwc3/debug.h @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #include "core.h" diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c index 9e9f122162f2..9ac37fe1b6a7 100644 --- a/drivers/usb/dwc3/debugfs.c +++ b/drivers/usb/dwc3/debugfs.c @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #include <linux/kernel.h> diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c index 8ce9d7fd6cfc..2f2e88a3a11a 100644 --- a/drivers/usb/dwc3/dwc3-exynos.c +++ b/drivers/usb/dwc3/dwc3-exynos.c @@ -6,10 +6,14 @@ * * Author: Anton Tikhomirov <av.tikhomirov@samsung.com> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #include <linux/module.h> @@ -20,7 +24,7 @@ #include <linux/dma-mapping.h> #include <linux/clk.h> #include <linux/usb/otg.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <linux/of.h> #include <linux/of_platform.h> @@ -34,13 +38,13 @@ struct dwc3_exynos { static int dwc3_exynos_register_phys(struct dwc3_exynos *exynos) { - struct nop_usb_xceiv_platform_data pdata; + struct usb_phy_gen_xceiv_platform_data pdata; struct platform_device *pdev; int ret; memset(&pdata, 0x00, sizeof(pdata)); - pdev = platform_device_alloc("nop_usb_xceiv", PLATFORM_DEVID_AUTO); + pdev = platform_device_alloc("usb_phy_gen_xceiv", PLATFORM_DEVID_AUTO); if (!pdev) return -ENOMEM; @@ -51,7 +55,7 @@ static int dwc3_exynos_register_phys(struct dwc3_exynos *exynos) if (ret) goto err1; - pdev = platform_device_alloc("nop_usb_xceiv", PLATFORM_DEVID_AUTO); + pdev = platform_device_alloc("usb_phy_gen_xceiv", PLATFORM_DEVID_AUTO); if (!pdev) { ret = -ENOMEM; goto err1; @@ -228,5 +232,5 @@ module_platform_driver(dwc3_exynos_driver); MODULE_ALIAS("platform:exynos-dwc3"); MODULE_AUTHOR("Anton Tikhomirov <av.tikhomirov@samsung.com>"); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("DesignWare USB3 EXYNOS Glue Layer"); diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index b26c2a4b4fb5..7f7ea62e961b 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #include <linux/module.h> @@ -457,11 +437,9 @@ static int dwc3_omap_probe(struct platform_device *pdev) return -EINVAL; } - base = devm_ioremap_nocache(dev, res->start, resource_size(res)); - if (!base) { - dev_err(dev, "ioremap failed\n"); - return -ENOMEM; - } + base = devm_ioremap_resource(dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); if (of_property_read_bool(node, "vbus-supply")) { vbus_reg = devm_regulator_get(dev, "vbus"); @@ -697,5 +675,5 @@ module_platform_driver(dwc3_omap_driver); MODULE_ALIAS("platform:omap-dwc3"); MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); -MODULE_LICENSE("Dual BSD/GPL"); +MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("DesignWare USB3 OMAP Glue Layer"); diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index ed07ec04a962..9b138129e856 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #include <linux/kernel.h> @@ -43,7 +23,7 @@ #include <linux/platform_device.h> #include <linux/usb/otg.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> /* FIXME define these in <linux/pci_ids.h> */ #define PCI_VENDOR_ID_SYNOPSYS 0x16c3 @@ -58,13 +38,13 @@ struct dwc3_pci { static int dwc3_pci_register_phys(struct dwc3_pci *glue) { - struct nop_usb_xceiv_platform_data pdata; + struct usb_phy_gen_xceiv_platform_data pdata; struct platform_device *pdev; int ret; memset(&pdata, 0x00, sizeof(pdata)); - pdev = platform_device_alloc("nop_usb_xceiv", 0); + pdev = platform_device_alloc("usb_phy_gen_xceiv", 0); if (!pdev) return -ENOMEM; @@ -75,7 +55,7 @@ static int dwc3_pci_register_phys(struct dwc3_pci *glue) if (ret) goto err1; - pdev = platform_device_alloc("nop_usb_xceiv", 1); + pdev = platform_device_alloc("usb_phy_gen_xceiv", 1); if (!pdev) { ret = -ENOMEM; goto err1; @@ -211,7 +191,7 @@ static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { }; MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int dwc3_pci_suspend(struct device *dev) { struct pci_dev *pci = to_pci_dev(dev); @@ -236,28 +216,24 @@ static int dwc3_pci_resume(struct device *dev) return 0; } +#endif /* CONFIG_PM_SLEEP */ static const struct dev_pm_ops dwc3_pci_dev_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume) }; -#define DEV_PM_OPS (&dwc3_pci_dev_pm_ops) -#else -#define DEV_PM_OPS NULL -#endif /* CONFIG_PM */ - static struct pci_driver dwc3_pci_driver = { .name = "dwc3-pci", .id_table = dwc3_pci_id_table, .probe = dwc3_pci_probe, .remove = dwc3_pci_remove, .driver = { - .pm = DEV_PM_OPS, + .pm = &dwc3_pci_dev_pm_ops, }, }; MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); -MODULE_LICENSE("Dual BSD/GPL"); +MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer"); module_pci_driver(dwc3_pci_driver); diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 5acbb948b704..7fa93f4bc507 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #include <linux/kernel.h> @@ -168,6 +148,7 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep, direction = !dwc->ep0_expect_in; dwc->delayed_status = false; + usb_gadget_set_state(&dwc->gadget, USB_STATE_CONFIGURED); if (dwc->ep0state == EP0_STATUS_PHASE) __dwc3_ep0_do_control_status(dwc, dwc->eps[direction]); @@ -553,8 +534,16 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) ret = dwc3_ep0_delegate_req(dwc, ctrl); /* if the cfg matches and the cfg is non zero */ if (cfg && (!ret || (ret == USB_GADGET_DELAYED_STATUS))) { - usb_gadget_set_state(&dwc->gadget, - USB_STATE_CONFIGURED); + + /* + * only change state if set_config has already + * been processed. If gadget driver returns + * USB_GADGET_DELAYED_STATUS, we will wait + * to change the state on the next usb_ep_queue() + */ + if (ret == 0) + usb_gadget_set_state(&dwc->gadget, + USB_STATE_CONFIGURED); /* * Enable transition to U1/U2 state when @@ -571,7 +560,7 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) case USB_STATE_CONFIGURED: ret = dwc3_ep0_delegate_req(dwc, ctrl); - if (!cfg) + if (!cfg && !ret) usb_gadget_set_state(&dwc->gadget, USB_STATE_ADDRESS); break; diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index f77083fedc68..f168eaebdef8 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #include <linux/kernel.h> @@ -520,6 +500,8 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, u32 reg; int ret = -ENOMEM; + dev_vdbg(dwc->dev, "Enabling %s\n", dep->name); + if (!(dep->flags & DWC3_EP_ENABLED)) { ret = dwc3_gadget_start_config(dwc, dep); if (ret) @@ -676,8 +658,6 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep, dev_err(dwc->dev, "invalid endpoint transfer type\n"); } - dev_vdbg(dwc->dev, "Enabling %s\n", dep->name); - spin_lock_irqsave(&dwc->lock, flags); ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc, false); spin_unlock_irqrestore(&dwc->lock, flags); @@ -1508,6 +1488,15 @@ static int dwc3_gadget_start(struct usb_gadget *g, int irq; u32 reg; + irq = platform_get_irq(to_platform_device(dwc->dev), 0); + ret = request_threaded_irq(irq, dwc3_interrupt, dwc3_thread_interrupt, + IRQF_SHARED, "dwc3", dwc); + if (ret) { + dev_err(dwc->dev, "failed to request irq #%d --> %d\n", + irq, ret); + goto err0; + } + spin_lock_irqsave(&dwc->lock, flags); if (dwc->gadget_driver) { @@ -1515,7 +1504,7 @@ static int dwc3_gadget_start(struct usb_gadget *g, dwc->gadget.name, dwc->gadget_driver->driver.name); ret = -EBUSY; - goto err0; + goto err1; } dwc->gadget_driver = driver; @@ -1536,10 +1525,25 @@ static int dwc3_gadget_start(struct usb_gadget *g, * STAR#9000525659: Clock Domain Crossing on DCTL in * USB 2.0 Mode */ - if (dwc->revision < DWC3_REVISION_220A) + if (dwc->revision < DWC3_REVISION_220A) { reg |= DWC3_DCFG_SUPERSPEED; - else - reg |= dwc->maximum_speed; + } else { + switch (dwc->maximum_speed) { + case USB_SPEED_LOW: + reg |= DWC3_DSTS_LOWSPEED; + break; + case USB_SPEED_FULL: + reg |= DWC3_DSTS_FULLSPEED1; + break; + case USB_SPEED_HIGH: + reg |= DWC3_DSTS_HIGHSPEED; + break; + case USB_SPEED_SUPER: /* FALLTHROUGH */ + case USB_SPEED_UNKNOWN: /* FALTHROUGH */ + default: + reg |= DWC3_DSTS_SUPERSPEED; + } + } dwc3_writel(dwc->regs, DWC3_DCFG, reg); dwc->start_config_issued = false; @@ -1551,42 +1555,38 @@ static int dwc3_gadget_start(struct usb_gadget *g, ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, false); if (ret) { dev_err(dwc->dev, "failed to enable %s\n", dep->name); - goto err0; + goto err2; } dep = dwc->eps[1]; ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, false); if (ret) { dev_err(dwc->dev, "failed to enable %s\n", dep->name); - goto err1; + goto err3; } /* begin to receive SETUP packets */ dwc->ep0state = EP0_SETUP_PHASE; dwc3_ep0_out_start(dwc); - irq = platform_get_irq(to_platform_device(dwc->dev), 0); - ret = request_threaded_irq(irq, dwc3_interrupt, dwc3_thread_interrupt, - IRQF_SHARED | IRQF_ONESHOT, "dwc3", dwc); - if (ret) { - dev_err(dwc->dev, "failed to request irq #%d --> %d\n", - irq, ret); - goto err1; - } - dwc3_gadget_enable_irq(dwc); spin_unlock_irqrestore(&dwc->lock, flags); return 0; -err1: +err3: __dwc3_gadget_ep_disable(dwc->eps[0]); -err0: +err2: dwc->gadget_driver = NULL; + +err1: spin_unlock_irqrestore(&dwc->lock, flags); + free_irq(irq, dwc); + +err0: return ret; } @@ -1600,9 +1600,6 @@ static int dwc3_gadget_stop(struct usb_gadget *g, spin_lock_irqsave(&dwc->lock, flags); dwc3_gadget_disable_irq(dwc); - irq = platform_get_irq(to_platform_device(dwc->dev), 0); - free_irq(irq, dwc); - __dwc3_gadget_ep_disable(dwc->eps[0]); __dwc3_gadget_ep_disable(dwc->eps[1]); @@ -1610,6 +1607,9 @@ static int dwc3_gadget_stop(struct usb_gadget *g, spin_unlock_irqrestore(&dwc->lock, flags); + irq = platform_get_irq(to_platform_device(dwc->dev), 0); + free_irq(irq, dwc); + return 0; } @@ -1642,13 +1642,15 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc, dep->dwc = dwc; dep->number = epnum; + dep->direction = !!direction; dwc->eps[epnum] = dep; snprintf(dep->name, sizeof(dep->name), "ep%d%s", epnum >> 1, (epnum & 1) ? "in" : "out"); dep->endpoint.name = dep->name; - dep->direction = (epnum & 1); + + dev_vdbg(dwc->dev, "initializing %s\n", dep->name); if (epnum == 0 || epnum == 1) { dep->endpoint.maxpacket = 512; @@ -2105,34 +2107,6 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc) dwc->setup_packet_pending = false; } -static void dwc3_gadget_usb3_phy_suspend(struct dwc3 *dwc, int suspend) -{ - u32 reg; - - reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)); - - if (suspend) - reg |= DWC3_GUSB3PIPECTL_SUSPHY; - else - reg &= ~DWC3_GUSB3PIPECTL_SUSPHY; - - dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); -} - -static void dwc3_gadget_usb2_phy_suspend(struct dwc3 *dwc, int suspend) -{ - u32 reg; - - reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); - - if (suspend) - reg |= DWC3_GUSB2PHYCFG_SUSPHY; - else - reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; - - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); -} - static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc) { u32 reg; @@ -2173,13 +2147,6 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc) /* after reset -> Default State */ usb_gadget_set_state(&dwc->gadget, USB_STATE_DEFAULT); - /* Recent versions support automatic phy suspend and don't need this */ - if (dwc->revision < DWC3_REVISION_194A) { - /* Resume PHYs */ - dwc3_gadget_usb2_phy_suspend(dwc, false); - dwc3_gadget_usb3_phy_suspend(dwc, false); - } - if (dwc->gadget.speed != USB_SPEED_UNKNOWN) dwc3_disconnect_gadget(dwc); @@ -2223,20 +2190,6 @@ static void dwc3_update_ram_clk_sel(struct dwc3 *dwc, u32 speed) dwc3_writel(dwc->regs, DWC3_GCTL, reg); } -static void dwc3_gadget_phy_suspend(struct dwc3 *dwc, u8 speed) -{ - switch (speed) { - case USB_SPEED_SUPER: - dwc3_gadget_usb2_phy_suspend(dwc, true); - break; - case USB_SPEED_HIGH: - case USB_SPEED_FULL: - case USB_SPEED_LOW: - dwc3_gadget_usb3_phy_suspend(dwc, true); - break; - } -} - static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) { struct dwc3_ep *dep; @@ -2312,12 +2265,6 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_DCTL, reg); } - /* Recent versions support automatic phy suspend and don't need this */ - if (dwc->revision < DWC3_REVISION_194A) { - /* Suspend unneeded PHY */ - dwc3_gadget_phy_suspend(dwc, dwc->gadget.speed); - } - dep = dwc->eps[0]; ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, true); if (ret) { @@ -2495,61 +2442,75 @@ static void dwc3_process_event_entry(struct dwc3 *dwc, } } -static irqreturn_t dwc3_thread_interrupt(int irq, void *_dwc) +static irqreturn_t dwc3_process_event_buf(struct dwc3 *dwc, u32 buf) { - struct dwc3 *dwc = _dwc; - unsigned long flags; + struct dwc3_event_buffer *evt; irqreturn_t ret = IRQ_NONE; - int i; + int left; + u32 reg; - spin_lock_irqsave(&dwc->lock, flags); + evt = dwc->ev_buffs[buf]; + left = evt->count; - for (i = 0; i < dwc->num_event_buffers; i++) { - struct dwc3_event_buffer *evt; - int left; + if (!(evt->flags & DWC3_EVENT_PENDING)) + return IRQ_NONE; - evt = dwc->ev_buffs[i]; - left = evt->count; + while (left > 0) { + union dwc3_event event; - if (!(evt->flags & DWC3_EVENT_PENDING)) - continue; + event.raw = *(u32 *) (evt->buf + evt->lpos); - while (left > 0) { - union dwc3_event event; + dwc3_process_event_entry(dwc, &event); - event.raw = *(u32 *) (evt->buf + evt->lpos); + /* + * FIXME we wrap around correctly to the next entry as + * almost all entries are 4 bytes in size. There is one + * entry which has 12 bytes which is a regular entry + * followed by 8 bytes data. ATM I don't know how + * things are organized if we get next to the a + * boundary so I worry about that once we try to handle + * that. + */ + evt->lpos = (evt->lpos + 4) % DWC3_EVENT_BUFFERS_SIZE; + left -= 4; - dwc3_process_event_entry(dwc, &event); + dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(buf), 4); + } - /* - * FIXME we wrap around correctly to the next entry as - * almost all entries are 4 bytes in size. There is one - * entry which has 12 bytes which is a regular entry - * followed by 8 bytes data. ATM I don't know how - * things are organized if we get next to the a - * boundary so I worry about that once we try to handle - * that. - */ - evt->lpos = (evt->lpos + 4) % DWC3_EVENT_BUFFERS_SIZE; - left -= 4; + evt->count = 0; + evt->flags &= ~DWC3_EVENT_PENDING; + ret = IRQ_HANDLED; - dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(i), 4); - } + /* Unmask interrupt */ + reg = dwc3_readl(dwc->regs, DWC3_GEVNTSIZ(buf)); + reg &= ~DWC3_GEVNTSIZ_INTMASK; + dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(buf), reg); - evt->count = 0; - evt->flags &= ~DWC3_EVENT_PENDING; - ret = IRQ_HANDLED; - } + return ret; +} + +static irqreturn_t dwc3_thread_interrupt(int irq, void *_dwc) +{ + struct dwc3 *dwc = _dwc; + unsigned long flags; + irqreturn_t ret = IRQ_NONE; + int i; + + spin_lock_irqsave(&dwc->lock, flags); + + for (i = 0; i < dwc->num_event_buffers; i++) + ret |= dwc3_process_event_buf(dwc, i); spin_unlock_irqrestore(&dwc->lock, flags); return ret; } -static irqreturn_t dwc3_process_event_buf(struct dwc3 *dwc, u32 buf) +static irqreturn_t dwc3_check_event_buf(struct dwc3 *dwc, u32 buf) { struct dwc3_event_buffer *evt; u32 count; + u32 reg; evt = dwc->ev_buffs[buf]; @@ -2561,6 +2522,11 @@ static irqreturn_t dwc3_process_event_buf(struct dwc3 *dwc, u32 buf) evt->count = count; evt->flags |= DWC3_EVENT_PENDING; + /* Mask interrupt */ + reg = dwc3_readl(dwc->regs, DWC3_GEVNTSIZ(buf)); + reg |= DWC3_GEVNTSIZ_INTMASK; + dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(buf), reg); + return IRQ_WAKE_THREAD; } @@ -2575,7 +2541,7 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc) for (i = 0; i < dwc->num_event_buffers; i++) { irqreturn_t status; - status = dwc3_process_event_buf(dwc, i); + status = dwc3_check_event_buf(dwc, i); if (status == IRQ_WAKE_THREAD) ret = status; } @@ -2593,7 +2559,6 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc) */ int dwc3_gadget_init(struct dwc3 *dwc) { - u32 reg; int ret; dwc->ctrl_req = dma_alloc_coherent(dwc->dev, sizeof(*dwc->ctrl_req), @@ -2643,16 +2608,6 @@ int dwc3_gadget_init(struct dwc3 *dwc) if (ret) goto err4; - reg = dwc3_readl(dwc->regs, DWC3_DCFG); - reg |= DWC3_DCFG_LPM_CAP; - dwc3_writel(dwc->regs, DWC3_DCFG, reg); - - /* Enable USB2 LPM and automatic phy suspend only on recent versions */ - if (dwc->revision >= DWC3_REVISION_194A) { - dwc3_gadget_usb2_phy_suspend(dwc, false); - dwc3_gadget_usb3_phy_suspend(dwc, false); - } - ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget); if (ret) { dev_err(dwc->dev, "failed to register udc\n"); diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h index 99e6d7248820..febe1aa7b714 100644 --- a/drivers/usb/dwc3/gadget.h +++ b/drivers/usb/dwc3/gadget.h @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #ifndef __DRIVERS_USB_DWC3_GADGET_H diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index 0fa1846eda4c..32db328cc769 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -5,34 +5,14 @@ * * Authors: Felipe Balbi <balbi@ti.com>, * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #include <linux/platform_device.h> diff --git a/drivers/usb/dwc3/io.h b/drivers/usb/dwc3/io.h index a50f76b9d19b..d94441c14d8c 100644 --- a/drivers/usb/dwc3/io.h +++ b/drivers/usb/dwc3/io.h @@ -6,34 +6,14 @@ * Authors: Felipe Balbi <balbi@ti.com>, * Sebastian Andrzej Siewior <bigeasy@linutronix.de> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2, as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #ifndef __DRIVERS_USB_DWC3_IO_H diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h new file mode 100644 index 000000000000..7db34f00b89a --- /dev/null +++ b/drivers/usb/dwc3/platform_data.h @@ -0,0 +1,27 @@ +/** + * platform_data.h - USB DWC3 Platform Data Support + * + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com + * Author: Felipe Balbi <balbi@ti.com> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/usb/ch9.h> +#include <linux/usb/otg.h> + +struct dwc3_platform_data { + enum usb_device_speed maximum_speed; + enum usb_dr_mode dr_mode; + bool tx_fifo_resize; +}; diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 8e9368330b10..30e2dd8a1f2c 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -144,7 +144,6 @@ config USB_AT91 config USB_LPC32XX tristate "LPC32XX USB Peripheral Controller" depends on ARCH_LPC32XX - depends on USB_PHY select USB_ISP1301 help This option selects the USB device controller in the LPC32xx SoC. @@ -188,7 +187,7 @@ config USB_FSL_USB2 config USB_FUSB300 tristate "Faraday FUSB300 USB Peripheral Controller" - depends on !PHYS_ADDR_T_64BIT + depends on !PHYS_ADDR_T_64BIT && HAS_DMA help Faraday usb device controller FUSB300 driver @@ -206,7 +205,6 @@ config USB_FOTG210_UDC config USB_OMAP tristate "OMAP USB Device Controller" depends on ARCH_OMAP1 - depends on USB_PHY select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG help Many Texas Instruments OMAP processors have flexible full @@ -246,6 +244,7 @@ config USB_PXA25X_SMALL config USB_R8A66597 tristate "Renesas R8A66597 USB Peripheral Controller" + depends on HAS_DMA help R8A66597 is a discrete USB host and peripheral controller chip that supports both full and high speed USB 2.0 data transfers. @@ -287,21 +286,6 @@ config USB_S3C_HSOTG The Samsung S3C64XX USB2.0 high-speed gadget controller integrated into the S3C64XX series SoC. -config USB_IMX - tristate "Freescale i.MX1 USB Peripheral Controller" - depends on ARCH_MXC - depends on BROKEN - help - Freescale's i.MX1 includes an integrated full speed - USB 1.1 device controller. - - It has Six fixed-function endpoints, as well as endpoint - zero (for control transfers). - - Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "imx_udc" and force all - gadget drivers to also be dynamically linked. - config USB_S3C2410 tristate "S3C2410 USB Device Controller" depends on ARCH_S3C24XX @@ -402,7 +386,7 @@ config USB_NET2272 config USB_NET2272_DMA boolean "Support external DMA controller" - depends on USB_NET2272 + depends on USB_NET2272 && HAS_DMA help The NET2272 part can optionally support an external DMA controller, but your board has to have support in the @@ -572,7 +556,7 @@ config USB_CONFIGFS specified simply by creating appropriate directories in configfs. Associating functions with configurations is done by creating appropriate symbolic links. - For more information see Documentation/usb/gadget-configfs.txt. + For more information see Documentation/usb/gadget_configfs.txt. config USB_CONFIGFS_SERIAL boolean "Generic serial bulk in/out" diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index bad08e66f369..386db9daf1d9 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_USB_NET2280) += net2280.o obj-$(CONFIG_USB_AMD5536UDC) += amd5536udc.o obj-$(CONFIG_USB_PXA25X) += pxa25x_udc.o obj-$(CONFIG_USB_PXA27X) += pxa27x_udc.o -obj-$(CONFIG_USB_IMX) += imx_udc.o obj-$(CONFIG_USB_GOKU) += goku_udc.o obj-$(CONFIG_USB_OMAP) += omap_udc.o obj-$(CONFIG_USB_S3C2410) += s3c2410_udc.o diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index f52dcfe8f545..a9a4346c83aa 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -1122,7 +1122,7 @@ udc_queue(struct usb_ep *usbep, struct usb_request *usbreq, gfp_t gfp) goto finished; } if (ep->dma) { - retval = prep_dma(ep, req, gfp); + retval = prep_dma(ep, req, GFP_ATOMIC); if (retval != 0) goto finished; /* write desc pointer to enable DMA */ @@ -1190,7 +1190,7 @@ udc_queue(struct usb_ep *usbep, struct usb_request *usbreq, gfp_t gfp) * for PPB modes, because of chain creation reasons */ if (ep->in) { - retval = prep_dma(ep, req, gfp); + retval = prep_dma(ep, req, GFP_ATOMIC); if (retval != 0) goto finished; } diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index d9a6add0c852..4cc4fd6d1473 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -870,6 +870,11 @@ static void clk_on(struct at91_udc *udc) if (udc->clocked) return; udc->clocked = 1; + + if (IS_ENABLED(CONFIG_COMMON_CLK)) { + clk_set_rate(udc->uclk, 48000000); + clk_prepare_enable(udc->uclk); + } clk_prepare_enable(udc->iclk); clk_prepare_enable(udc->fclk); } @@ -882,6 +887,8 @@ static void clk_off(struct at91_udc *udc) udc->gadget.speed = USB_SPEED_UNKNOWN; clk_disable_unprepare(udc->fclk); clk_disable_unprepare(udc->iclk); + if (IS_ENABLED(CONFIG_COMMON_CLK)) + clk_disable_unprepare(udc->uclk); } /* @@ -1697,7 +1704,7 @@ static int at91udc_probe(struct platform_device *pdev) int retval; struct resource *res; - if (!dev->platform_data && !pdev->dev.of_node) { + if (!dev_get_platdata(dev) && !pdev->dev.of_node) { /* small (so we copy it) but critical! */ DBG("missing platform_data\n"); return -ENODEV; @@ -1728,7 +1735,7 @@ static int at91udc_probe(struct platform_device *pdev) if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) at91udc_of_init(udc, pdev->dev.of_node); else - memcpy(&udc->board, dev->platform_data, + memcpy(&udc->board, dev_get_platdata(dev), sizeof(struct at91_udc_data)); udc->pdev = pdev; udc->enabled = 0; @@ -1774,10 +1781,12 @@ static int at91udc_probe(struct platform_device *pdev) /* get interface and function clocks */ udc->iclk = clk_get(dev, "udc_clk"); udc->fclk = clk_get(dev, "udpck"); - if (IS_ERR(udc->iclk) || IS_ERR(udc->fclk)) { + if (IS_ENABLED(CONFIG_COMMON_CLK)) + udc->uclk = clk_get(dev, "usb_clk"); + if (IS_ERR(udc->iclk) || IS_ERR(udc->fclk) || + (IS_ENABLED(CONFIG_COMMON_CLK) && IS_ERR(udc->uclk))) { DBG("clocks missing\n"); retval = -ENODEV; - /* NOTE: we "know" here that refcounts on these are NOPs */ goto fail1; } @@ -1851,6 +1860,12 @@ fail3: fail2: free_irq(udc->udp_irq, udc); fail1: + if (IS_ENABLED(CONFIG_COMMON_CLK) && !IS_ERR(udc->uclk)) + clk_put(udc->uclk); + if (!IS_ERR(udc->fclk)) + clk_put(udc->fclk); + if (!IS_ERR(udc->iclk)) + clk_put(udc->iclk); iounmap(udc->udp_baseaddr); fail0a: if (cpu_is_at91rm9200()) @@ -1894,6 +1909,8 @@ static int __exit at91udc_remove(struct platform_device *pdev) clk_put(udc->iclk); clk_put(udc->fclk); + if (IS_ENABLED(CONFIG_COMMON_CLK)) + clk_put(udc->uclk); return 0; } diff --git a/drivers/usb/gadget/at91_udc.h b/drivers/usb/gadget/at91_udc.h index e647d1c2ada4..017524663381 100644 --- a/drivers/usb/gadget/at91_udc.h +++ b/drivers/usb/gadget/at91_udc.h @@ -126,7 +126,7 @@ struct at91_udc { unsigned active_suspend:1; u8 addr; struct at91_udc_data board; - struct clk *iclk, *fclk; + struct clk *iclk, *fclk, *uclk; struct platform_device *pdev; struct proc_dir_entry *pde; void __iomem *udp_baseaddr; diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index 1d9722203ca6..2cb52e0438df 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -1772,6 +1772,7 @@ out: static int atmel_usba_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver) { + int ret; struct usba_udc *udc = container_of(gadget, struct usba_udc, gadget); unsigned long flags; @@ -1781,8 +1782,14 @@ static int atmel_usba_start(struct usb_gadget *gadget, udc->driver = driver; spin_unlock_irqrestore(&udc->lock, flags); - clk_enable(udc->pclk); - clk_enable(udc->hclk); + ret = clk_prepare_enable(udc->pclk); + if (ret) + return ret; + ret = clk_prepare_enable(udc->hclk); + if (ret) { + clk_disable_unprepare(udc->pclk); + return ret; + } DBG(DBG_GADGET, "registered driver `%s'\n", driver->driver.name); @@ -1822,8 +1829,8 @@ static int atmel_usba_stop(struct usb_gadget *gadget, udc->driver = NULL; - clk_disable(udc->hclk); - clk_disable(udc->pclk); + clk_disable_unprepare(udc->hclk); + clk_disable_unprepare(udc->pclk); DBG(DBG_GADGET, "unregistered driver `%s'\n", driver->driver.name); @@ -1922,7 +1929,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, static struct usba_ep * usba_udc_pdata(struct platform_device *pdev, struct usba_udc *udc) { - struct usba_platform_data *pdata = pdev->dev.platform_data; + struct usba_platform_data *pdata = dev_get_platdata(&pdev->dev); struct usba_ep *eps; int i; @@ -2022,10 +2029,14 @@ static int __init usba_udc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, udc); /* Make sure we start from a clean slate */ - clk_enable(pclk); + ret = clk_prepare_enable(pclk); + if (ret) { + dev_err(&pdev->dev, "Unable to enable pclk, aborting.\n"); + goto err_clk_enable; + } toggle_bias(0); usba_writel(udc, CTRL, USBA_DISABLE_MASK); - clk_disable(pclk); + clk_disable_unprepare(pclk); if (pdev->dev.of_node) udc->usba_ep = atmel_udc_of_init(pdev, udc); @@ -2081,6 +2092,7 @@ err_add_udc: free_irq(irq, udc); err_request_irq: err_alloc_ep: +err_clk_enable: iounmap(udc->fifo); err_map_fifo: iounmap(udc->regs); diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c index fd24cb4540a4..c58fcf1ebe41 100644 --- a/drivers/usb/gadget/bcm63xx_udc.c +++ b/drivers/usb/gadget/bcm63xx_udc.c @@ -2313,7 +2313,7 @@ static void bcm63xx_udc_cleanup_debugfs(struct bcm63xx_udc *udc) static int bcm63xx_udc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct bcm63xx_usbd_platform_data *pd = dev->platform_data; + struct bcm63xx_usbd_platform_data *pd = dev_get_platdata(dev); struct bcm63xx_udc *udc; struct resource *res; int rc = -ENOMEM, i, irq; diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 55f4df60f327..d4f0f3305759 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1497,17 +1497,15 @@ void composite_disconnect(struct usb_gadget *gadget) /*-------------------------------------------------------------------------*/ -static ssize_t composite_show_suspended(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t suspended_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_gadget *gadget = dev_to_usb_gadget(dev); struct usb_composite_dev *cdev = get_gadget_data(gadget); return sprintf(buf, "%d\n", cdev->suspended); } - -static DEVICE_ATTR(suspended, 0444, composite_show_suspended, NULL); +static DEVICE_ATTR_RO(suspended); static void __composite_unbind(struct usb_gadget *gadget, bool unbind_driver) { diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 80e7f75a56c7..8f0d6141e5e6 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -859,8 +859,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget, list_for_each_entry_safe(f, tmp, &cfg->func_list, list) { list_del(&f->list); ret = usb_add_function(c, f); - if (ret) + if (ret) { + list_add(&f->list, &cfg->func_list); goto err_purge_funcs; + } } usb_ep_autoconfig_reset(cdev->gadget); } diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index c588e8e486e5..06ecd08fd57a 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -868,7 +868,7 @@ static const struct usb_gadget_ops dummy_ops = { /*-------------------------------------------------------------------------*/ /* "function" sysfs attribute */ -static ssize_t show_function(struct device *dev, struct device_attribute *attr, +static ssize_t function_show(struct device *dev, struct device_attribute *attr, char *buf) { struct dummy *dum = gadget_dev_to_dummy(dev); @@ -877,7 +877,7 @@ static ssize_t show_function(struct device *dev, struct device_attribute *attr, return 0; return scnprintf(buf, PAGE_SIZE, "%s\n", dum->driver->function); } -static DEVICE_ATTR(function, S_IRUGO, show_function, NULL); +static DEVICE_ATTR_RO(function); /*-------------------------------------------------------------------------*/ @@ -2290,7 +2290,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb) urb->actual_length, urb->transfer_buffer_length); } -static ssize_t show_urbs(struct device *dev, struct device_attribute *attr, +static ssize_t urbs_show(struct device *dev, struct device_attribute *attr, char *buf) { struct usb_hcd *hcd = dev_get_drvdata(dev); @@ -2311,7 +2311,7 @@ static ssize_t show_urbs(struct device *dev, struct device_attribute *attr, return size; } -static DEVICE_ATTR(urbs, S_IRUGO, show_urbs, NULL); +static DEVICE_ATTR_RO(urbs); static int dummy_start_ss(struct dummy_hcd *dum_hcd) { diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c index 4b7e33e5d9c6..ab1065afbbd0 100644 --- a/drivers/usb/gadget/f_acm.c +++ b/drivers/usb/gadget/f_acm.c @@ -285,6 +285,7 @@ static struct usb_string acm_string_defs[] = { [ACM_CTRL_IDX].s = "CDC Abstract Control Model (ACM)", [ACM_DATA_IDX].s = "CDC ACM Data", [ACM_IAD_IDX ].s = "CDC Serial", + { } /* end of list */ }; static struct usb_gadget_strings acm_string_table = { diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index f394f295d63d..1a66c5baa0d1 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -1417,8 +1417,8 @@ static void functionfs_unbind(struct ffs_data *ffs) usb_ep_free_request(ffs->gadget->ep0, ffs->ep0req); ffs->ep0req = NULL; ffs->gadget = NULL; - ffs_data_put(ffs); clear_bit(FFS_FL_BOUND, &ffs->flags); + ffs_data_put(ffs); } } diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 56f1fd1cba25..313b835eedfd 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2578,14 +2578,12 @@ static int fsg_main_thread(void *common_) /*************************** DEVICE ATTRIBUTES ***************************/ -static DEVICE_ATTR(ro, 0644, fsg_show_ro, fsg_store_ro); -static DEVICE_ATTR(nofua, 0644, fsg_show_nofua, fsg_store_nofua); -static DEVICE_ATTR(file, 0644, fsg_show_file, fsg_store_file); +static DEVICE_ATTR_RW(ro); +static DEVICE_ATTR_RW(nofua); +static DEVICE_ATTR_RW(file); -static struct device_attribute dev_attr_ro_cdrom = - __ATTR(ro, 0444, fsg_show_ro, NULL); -static struct device_attribute dev_attr_file_nonremovable = - __ATTR(file, 0444, fsg_show_file, NULL); +static struct device_attribute dev_attr_ro_cdrom = __ATTR_RO(ro); +static struct device_attribute dev_attr_file_nonremovable = __ATTR_RO(file); /****************************** FSG COMMON ******************************/ @@ -3043,12 +3041,12 @@ fsg_config_from_params(struct fsg_config *cfg, lun->filename = params->file_count > i && params->file[i][0] ? params->file[i] - : 0; + : NULL; } /* Let MSF use defaults */ - cfg->vendor_name = 0; - cfg->product_name = 0; + cfg->vendor_name = NULL; + cfg->product_name = NULL; cfg->ops = NULL; cfg->private_data = NULL; diff --git a/drivers/usb/gadget/f_uac1.c b/drivers/usb/gadget/f_uac1.c index fa8ea4ea00c1..2b4c82d84bfc 100644 --- a/drivers/usb/gadget/f_uac1.c +++ b/drivers/usb/gadget/f_uac1.c @@ -695,7 +695,7 @@ static int generic_get_cmd(struct usb_audio_control *con, u8 cmd) } /* Todo: add more control selecotor dynamically */ -int __init control_selector_init(struct f_audio *audio) +static int __init control_selector_init(struct f_audio *audio) { INIT_LIST_HEAD(&audio->cs); list_add(&feature_unit.list, &audio->cs); @@ -719,7 +719,7 @@ int __init control_selector_init(struct f_audio *audio) * * Returns zero on success, else negative errno. */ -int __init audio_bind_config(struct usb_configuration *c) +static int __init audio_bind_config(struct usb_configuration *c) { struct f_audio *audio; int status; diff --git a/drivers/usb/gadget/fotg210-udc.c b/drivers/usb/gadget/fotg210-udc.c index 10cd18ddd0d4..32db2eee2d87 100644 --- a/drivers/usb/gadget/fotg210-udc.c +++ b/drivers/usb/gadget/fotg210-udc.c @@ -1076,7 +1076,7 @@ static struct usb_gadget_ops fotg210_gadget_ops = { static int fotg210_udc_remove(struct platform_device *pdev) { - struct fotg210_udc *fotg210 = dev_get_drvdata(&pdev->dev); + struct fotg210_udc *fotg210 = platform_get_drvdata(pdev); usb_del_gadget_udc(&fotg210->gadget); iounmap(fotg210->reg); @@ -1134,7 +1134,7 @@ static int fotg210_udc_probe(struct platform_device *pdev) spin_lock_init(&fotg210->lock); - dev_set_drvdata(&pdev->dev, fotg210); + platform_set_drvdata(pdev, fotg210); fotg210->gadget.ops = &fotg210_gadget_ops; diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c index d3bd7b095ba3..9b140fc4d3bc 100644 --- a/drivers/usb/gadget/fsl_mxc_udc.c +++ b/drivers/usb/gadget/fsl_mxc_udc.c @@ -33,7 +33,7 @@ int fsl_udc_clk_init(struct platform_device *pdev) unsigned long freq; int ret; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); mxc_ipg_clk = devm_clk_get(&pdev->dev, "ipg"); if (IS_ERR(mxc_ipg_clk)) { @@ -80,7 +80,7 @@ eclkrate: int fsl_udc_clk_finalize(struct platform_device *pdev) { - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); int ret = 0; /* workaround ENGcm09152 for i.MX35 */ diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index a766a4ca1cb7..36ac7cfba91d 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -2248,7 +2248,7 @@ static int __init struct_udc_setup(struct fsl_udc *udc, struct fsl_usb2_platform_data *pdata; size_t size; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); udc->phy_mode = pdata->phy_mode; udc->eps = kzalloc(sizeof(struct fsl_ep) * udc->max_ep, GFP_KERNEL); @@ -2343,7 +2343,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) return -ENOMEM; } - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); udc_controller->pdata = pdata; spin_lock_init(&udc_controller->lock); udc_controller->stopped = 1; @@ -2524,7 +2524,7 @@ err_kfree: static int __exit fsl_udc_remove(struct platform_device *pdev) { struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); DECLARE_COMPLETION(done); diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index c83f3e165325..f1dd6daabe21 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -557,7 +557,7 @@ static void fusb300_set_cxdone(struct fusb300 *fusb300) } /* read data from cx fifo */ -void fusb300_rdcxf(struct fusb300 *fusb300, +static void fusb300_rdcxf(struct fusb300 *fusb300, u8 *buffer, u32 length) { int i = 0; diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index 52dd6cc6c0aa..c64deb9e3d62 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -772,7 +772,7 @@ goku_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) } /* else pio or dma irq handler advances the queue. */ - if (likely(req != 0)) + if (likely(req != NULL)) list_add_tail(&req->queue, &ep->queue); if (likely(!list_empty(&ep->queue)) diff --git a/drivers/usb/gadget/hid.c b/drivers/usb/gadget/hid.c index c36260ea8bf2..778613eb37af 100644 --- a/drivers/usb/gadget/hid.c +++ b/drivers/usb/gadget/hid.c @@ -185,7 +185,7 @@ static int __exit hid_unbind(struct usb_composite_dev *cdev) static int __init hidg_plat_driver_probe(struct platform_device *pdev) { - struct hidg_func_descriptor *func = pdev->dev.platform_data; + struct hidg_func_descriptor *func = dev_get_platdata(&pdev->dev); struct hidg_func_node *entry; if (!func) { diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c deleted file mode 100644 index 9b2d24e4c95f..000000000000 --- a/drivers/usb/gadget/imx_udc.c +++ /dev/null @@ -1,1544 +0,0 @@ -/* - * driver/usb/gadget/imx_udc.c - * - * Copyright (C) 2005 Mike Lee <eemike@gmail.com> - * Copyright (C) 2008 Darius Augulis <augulis.darius@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/list.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/irq.h> -#include <linux/device.h> -#include <linux/dma-mapping.h> -#include <linux/clk.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/slab.h> -#include <linux/prefetch.h> - -#include <linux/usb/ch9.h> -#include <linux/usb/gadget.h> - -#include <linux/platform_data/usb-imx_udc.h> -#include <mach/hardware.h> - -#include "imx_udc.h" - -static const char driver_name[] = "imx_udc"; -static const char ep0name[] = "ep0"; - -void ep0_chg_stat(const char *label, struct imx_udc_struct *imx_usb, - enum ep0_state stat); - -/******************************************************************************* - * IMX UDC hardware related functions - ******************************************************************************* - */ - -void imx_udc_enable(struct imx_udc_struct *imx_usb) -{ - int temp = __raw_readl(imx_usb->base + USB_CTRL); - __raw_writel(temp | CTRL_FE_ENA | CTRL_AFE_ENA, - imx_usb->base + USB_CTRL); - imx_usb->gadget.speed = USB_SPEED_FULL; -} - -void imx_udc_disable(struct imx_udc_struct *imx_usb) -{ - int temp = __raw_readl(imx_usb->base + USB_CTRL); - - __raw_writel(temp & ~(CTRL_FE_ENA | CTRL_AFE_ENA), - imx_usb->base + USB_CTRL); - - ep0_chg_stat(__func__, imx_usb, EP0_IDLE); - imx_usb->gadget.speed = USB_SPEED_UNKNOWN; -} - -void imx_udc_reset(struct imx_udc_struct *imx_usb) -{ - int temp = __raw_readl(imx_usb->base + USB_ENAB); - - /* set RST bit */ - __raw_writel(temp | ENAB_RST, imx_usb->base + USB_ENAB); - - /* wait RST bit to clear */ - do {} while (__raw_readl(imx_usb->base + USB_ENAB) & ENAB_RST); - - /* wait CFG bit to assert */ - do {} while (!(__raw_readl(imx_usb->base + USB_DADR) & DADR_CFG)); - - /* udc module is now ready */ -} - -void imx_udc_config(struct imx_udc_struct *imx_usb) -{ - u8 ep_conf[5]; - u8 i, j, cfg; - struct imx_ep_struct *imx_ep; - - /* wait CFG bit to assert */ - do {} while (!(__raw_readl(imx_usb->base + USB_DADR) & DADR_CFG)); - - /* Download the endpoint buffer for endpoint 0. */ - for (j = 0; j < 5; j++) { - i = (j == 2 ? imx_usb->imx_ep[0].fifosize : 0x00); - __raw_writeb(i, imx_usb->base + USB_DDAT); - do {} while (__raw_readl(imx_usb->base + USB_DADR) & DADR_BSY); - } - - /* Download the endpoint buffers for endpoints 1-5. - * We specify two configurations, one interface - */ - for (cfg = 1; cfg < 3; cfg++) { - for (i = 1; i < IMX_USB_NB_EP; i++) { - imx_ep = &imx_usb->imx_ep[i]; - /* EP no | Config no */ - ep_conf[0] = (i << 4) | (cfg << 2); - /* Type | Direction */ - ep_conf[1] = (imx_ep->bmAttributes << 3) | - (EP_DIR(imx_ep) << 2); - /* Max packet size */ - ep_conf[2] = imx_ep->fifosize; - /* TRXTYP */ - ep_conf[3] = 0xC0; - /* FIFO no */ - ep_conf[4] = i; - - D_INI(imx_usb->dev, - "<%s> ep%d_conf[%d]:" - "[%02x-%02x-%02x-%02x-%02x]\n", - __func__, i, cfg, - ep_conf[0], ep_conf[1], ep_conf[2], - ep_conf[3], ep_conf[4]); - - for (j = 0; j < 5; j++) { - __raw_writeb(ep_conf[j], - imx_usb->base + USB_DDAT); - do {} while (__raw_readl(imx_usb->base - + USB_DADR) - & DADR_BSY); - } - } - } - - /* wait CFG bit to clear */ - do {} while (__raw_readl(imx_usb->base + USB_DADR) & DADR_CFG); -} - -void imx_udc_init_irq(struct imx_udc_struct *imx_usb) -{ - int i; - - /* Mask and clear all irqs */ - __raw_writel(0xFFFFFFFF, imx_usb->base + USB_MASK); - __raw_writel(0xFFFFFFFF, imx_usb->base + USB_INTR); - for (i = 0; i < IMX_USB_NB_EP; i++) { - __raw_writel(0x1FF, imx_usb->base + USB_EP_MASK(i)); - __raw_writel(0x1FF, imx_usb->base + USB_EP_INTR(i)); - } - - /* Enable USB irqs */ - __raw_writel(INTR_MSOF | INTR_FRAME_MATCH, imx_usb->base + USB_MASK); - - /* Enable EP0 irqs */ - __raw_writel(0x1FF & ~(EPINTR_DEVREQ | EPINTR_MDEVREQ | EPINTR_EOT - | EPINTR_EOF | EPINTR_FIFO_EMPTY | EPINTR_FIFO_FULL), - imx_usb->base + USB_EP_MASK(0)); -} - -void imx_udc_init_ep(struct imx_udc_struct *imx_usb) -{ - int i, max, temp; - struct imx_ep_struct *imx_ep; - for (i = 0; i < IMX_USB_NB_EP; i++) { - imx_ep = &imx_usb->imx_ep[i]; - switch (imx_ep->fifosize) { - case 8: - max = 0; - break; - case 16: - max = 1; - break; - case 32: - max = 2; - break; - case 64: - max = 3; - break; - default: - max = 1; - break; - } - temp = (EP_DIR(imx_ep) << 7) | (max << 5) - | (imx_ep->bmAttributes << 3); - __raw_writel(temp, imx_usb->base + USB_EP_STAT(i)); - __raw_writel(temp | EPSTAT_FLUSH, - imx_usb->base + USB_EP_STAT(i)); - D_INI(imx_usb->dev, "<%s> ep%d_stat %08x\n", __func__, i, - __raw_readl(imx_usb->base + USB_EP_STAT(i))); - } -} - -void imx_udc_init_fifo(struct imx_udc_struct *imx_usb) -{ - int i, temp; - struct imx_ep_struct *imx_ep; - for (i = 0; i < IMX_USB_NB_EP; i++) { - imx_ep = &imx_usb->imx_ep[i]; - - /* Fifo control */ - temp = EP_DIR(imx_ep) ? 0x0B000000 : 0x0F000000; - __raw_writel(temp, imx_usb->base + USB_EP_FCTRL(i)); - D_INI(imx_usb->dev, "<%s> ep%d_fctrl %08x\n", __func__, i, - __raw_readl(imx_usb->base + USB_EP_FCTRL(i))); - - /* Fifo alarm */ - temp = (i ? imx_ep->fifosize / 2 : 0); - __raw_writel(temp, imx_usb->base + USB_EP_FALRM(i)); - D_INI(imx_usb->dev, "<%s> ep%d_falrm %08x\n", __func__, i, - __raw_readl(imx_usb->base + USB_EP_FALRM(i))); - } -} - -static void imx_udc_init(struct imx_udc_struct *imx_usb) -{ - /* Reset UDC */ - imx_udc_reset(imx_usb); - - /* Download config to enpoint buffer */ - imx_udc_config(imx_usb); - - /* Setup interrups */ - imx_udc_init_irq(imx_usb); - - /* Setup endpoints */ - imx_udc_init_ep(imx_usb); - - /* Setup fifos */ - imx_udc_init_fifo(imx_usb); -} - -void imx_ep_irq_enable(struct imx_ep_struct *imx_ep) -{ - - int i = EP_NO(imx_ep); - - __raw_writel(0x1FF, imx_ep->imx_usb->base + USB_EP_MASK(i)); - __raw_writel(0x1FF, imx_ep->imx_usb->base + USB_EP_INTR(i)); - __raw_writel(0x1FF & ~(EPINTR_EOT | EPINTR_EOF), - imx_ep->imx_usb->base + USB_EP_MASK(i)); -} - -void imx_ep_irq_disable(struct imx_ep_struct *imx_ep) -{ - - int i = EP_NO(imx_ep); - - __raw_writel(0x1FF, imx_ep->imx_usb->base + USB_EP_MASK(i)); - __raw_writel(0x1FF, imx_ep->imx_usb->base + USB_EP_INTR(i)); -} - -int imx_ep_empty(struct imx_ep_struct *imx_ep) -{ - struct imx_udc_struct *imx_usb = imx_ep->imx_usb; - - return __raw_readl(imx_usb->base + USB_EP_FSTAT(EP_NO(imx_ep))) - & FSTAT_EMPTY; -} - -unsigned imx_fifo_bcount(struct imx_ep_struct *imx_ep) -{ - struct imx_udc_struct *imx_usb = imx_ep->imx_usb; - - return (__raw_readl(imx_usb->base + USB_EP_STAT(EP_NO(imx_ep))) - & EPSTAT_BCOUNT) >> 16; -} - -void imx_flush(struct imx_ep_struct *imx_ep) -{ - struct imx_udc_struct *imx_usb = imx_ep->imx_usb; - - int temp = __raw_readl(imx_usb->base + USB_EP_STAT(EP_NO(imx_ep))); - __raw_writel(temp | EPSTAT_FLUSH, - imx_usb->base + USB_EP_STAT(EP_NO(imx_ep))); -} - -void imx_ep_stall(struct imx_ep_struct *imx_ep) -{ - struct imx_udc_struct *imx_usb = imx_ep->imx_usb; - int temp, i; - - D_ERR(imx_usb->dev, - "<%s> Forced stall on %s\n", __func__, imx_ep->ep.name); - - imx_flush(imx_ep); - - /* Special care for ep0 */ - if (!EP_NO(imx_ep)) { - temp = __raw_readl(imx_usb->base + USB_CTRL); - __raw_writel(temp | CTRL_CMDOVER | CTRL_CMDERROR, - imx_usb->base + USB_CTRL); - do { } while (__raw_readl(imx_usb->base + USB_CTRL) - & CTRL_CMDOVER); - temp = __raw_readl(imx_usb->base + USB_CTRL); - __raw_writel(temp & ~CTRL_CMDERROR, imx_usb->base + USB_CTRL); - } - else { - temp = __raw_readl(imx_usb->base + USB_EP_STAT(EP_NO(imx_ep))); - __raw_writel(temp | EPSTAT_STALL, - imx_usb->base + USB_EP_STAT(EP_NO(imx_ep))); - - for (i = 0; i < 100; i ++) { - temp = __raw_readl(imx_usb->base - + USB_EP_STAT(EP_NO(imx_ep))); - if (!(temp & EPSTAT_STALL)) - break; - udelay(20); - } - if (i == 100) - D_ERR(imx_usb->dev, "<%s> Non finished stall on %s\n", - __func__, imx_ep->ep.name); - } -} - -static int imx_udc_get_frame(struct usb_gadget *_gadget) -{ - struct imx_udc_struct *imx_usb = container_of(_gadget, - struct imx_udc_struct, gadget); - - return __raw_readl(imx_usb->base + USB_FRAME) & 0x7FF; -} - -static int imx_udc_wakeup(struct usb_gadget *_gadget) -{ - return 0; -} - -/******************************************************************************* - * USB request control functions - ******************************************************************************* - */ - -static void ep_add_request(struct imx_ep_struct *imx_ep, - struct imx_request *req) -{ - if (unlikely(!req)) - return; - - req->in_use = 1; - list_add_tail(&req->queue, &imx_ep->queue); -} - -static void ep_del_request(struct imx_ep_struct *imx_ep, - struct imx_request *req) -{ - if (unlikely(!req)) - return; - - list_del_init(&req->queue); - req->in_use = 0; -} - -static void done(struct imx_ep_struct *imx_ep, - struct imx_request *req, int status) -{ - ep_del_request(imx_ep, req); - - if (likely(req->req.status == -EINPROGRESS)) - req->req.status = status; - else - status = req->req.status; - - if (status && status != -ESHUTDOWN) - D_ERR(imx_ep->imx_usb->dev, - "<%s> complete %s req %p stat %d len %u/%u\n", __func__, - imx_ep->ep.name, &req->req, status, - req->req.actual, req->req.length); - - req->req.complete(&imx_ep->ep, &req->req); -} - -static void nuke(struct imx_ep_struct *imx_ep, int status) -{ - struct imx_request *req; - - while (!list_empty(&imx_ep->queue)) { - req = list_entry(imx_ep->queue.next, struct imx_request, queue); - done(imx_ep, req, status); - } -} - -/******************************************************************************* - * Data tansfer over USB functions - ******************************************************************************* - */ -static int read_packet(struct imx_ep_struct *imx_ep, struct imx_request *req) -{ - u8 *buf; - int bytes_ep, bufferspace, count, i; - - bytes_ep = imx_fifo_bcount(imx_ep); - bufferspace = req->req.length - req->req.actual; - - buf = req->req.buf + req->req.actual; - prefetchw(buf); - - if (unlikely(imx_ep_empty(imx_ep))) - count = 0; /* zlp */ - else - count = min(bytes_ep, bufferspace); - - for (i = count; i > 0; i--) - *buf++ = __raw_readb(imx_ep->imx_usb->base - + USB_EP_FDAT0(EP_NO(imx_ep))); - req->req.actual += count; - - return count; -} - -static int write_packet(struct imx_ep_struct *imx_ep, struct imx_request *req) -{ - u8 *buf; - int length, count, temp; - - if (unlikely(__raw_readl(imx_ep->imx_usb->base + - USB_EP_STAT(EP_NO(imx_ep))) & EPSTAT_ZLPS)) { - D_TRX(imx_ep->imx_usb->dev, "<%s> zlp still queued in EP %s\n", - __func__, imx_ep->ep.name); - return -1; - } - - buf = req->req.buf + req->req.actual; - prefetch(buf); - - length = min(req->req.length - req->req.actual, (u32)imx_ep->fifosize); - - if (imx_fifo_bcount(imx_ep) + length > imx_ep->fifosize) { - D_TRX(imx_ep->imx_usb->dev, "<%s> packet overfill %s fifo\n", - __func__, imx_ep->ep.name); - return -1; - } - - req->req.actual += length; - count = length; - - if (!count && req->req.zero) { /* zlp */ - temp = __raw_readl(imx_ep->imx_usb->base - + USB_EP_STAT(EP_NO(imx_ep))); - __raw_writel(temp | EPSTAT_ZLPS, imx_ep->imx_usb->base - + USB_EP_STAT(EP_NO(imx_ep))); - D_TRX(imx_ep->imx_usb->dev, "<%s> zero packet\n", __func__); - return 0; - } - - while (count--) { - if (count == 0) { /* last byte */ - temp = __raw_readl(imx_ep->imx_usb->base - + USB_EP_FCTRL(EP_NO(imx_ep))); - __raw_writel(temp | FCTRL_WFR, imx_ep->imx_usb->base - + USB_EP_FCTRL(EP_NO(imx_ep))); - } - __raw_writeb(*buf++, - imx_ep->imx_usb->base + USB_EP_FDAT0(EP_NO(imx_ep))); - } - - return length; -} - -static int read_fifo(struct imx_ep_struct *imx_ep, struct imx_request *req) -{ - int bytes = 0, - count, - completed = 0; - - while (__raw_readl(imx_ep->imx_usb->base + USB_EP_FSTAT(EP_NO(imx_ep))) - & FSTAT_FR) { - count = read_packet(imx_ep, req); - bytes += count; - - completed = (count != imx_ep->fifosize); - if (completed || req->req.actual == req->req.length) { - completed = 1; - break; - } - } - - if (completed || !req->req.length) { - done(imx_ep, req, 0); - D_REQ(imx_ep->imx_usb->dev, "<%s> %s req<%p> %s\n", - __func__, imx_ep->ep.name, req, - completed ? "completed" : "not completed"); - if (!EP_NO(imx_ep)) - ep0_chg_stat(__func__, imx_ep->imx_usb, EP0_IDLE); - } - - D_TRX(imx_ep->imx_usb->dev, "<%s> bytes read: %d\n", __func__, bytes); - - return completed; -} - -static int write_fifo(struct imx_ep_struct *imx_ep, struct imx_request *req) -{ - int bytes = 0, - count, - completed = 0; - - while (!completed) { - count = write_packet(imx_ep, req); - if (count < 0) - break; /* busy */ - bytes += count; - - /* last packet "must be" short (or a zlp) */ - completed = (count != imx_ep->fifosize); - - if (unlikely(completed)) { - done(imx_ep, req, 0); - D_REQ(imx_ep->imx_usb->dev, "<%s> %s req<%p> %s\n", - __func__, imx_ep->ep.name, req, - completed ? "completed" : "not completed"); - if (!EP_NO(imx_ep)) - ep0_chg_stat(__func__, - imx_ep->imx_usb, EP0_IDLE); - } - } - - D_TRX(imx_ep->imx_usb->dev, "<%s> bytes sent: %d\n", __func__, bytes); - - return completed; -} - -/******************************************************************************* - * Endpoint handlers - ******************************************************************************* - */ -static int handle_ep(struct imx_ep_struct *imx_ep) -{ - struct imx_request *req; - int completed = 0; - - do { - if (!list_empty(&imx_ep->queue)) - req = list_entry(imx_ep->queue.next, - struct imx_request, queue); - else { - D_REQ(imx_ep->imx_usb->dev, "<%s> no request on %s\n", - __func__, imx_ep->ep.name); - return 0; - } - - if (EP_DIR(imx_ep)) /* to host */ - completed = write_fifo(imx_ep, req); - else /* to device */ - completed = read_fifo(imx_ep, req); - - dump_ep_stat(__func__, imx_ep); - - } while (completed); - - return 0; -} - -static int handle_ep0(struct imx_ep_struct *imx_ep) -{ - struct imx_request *req = NULL; - int ret = 0; - - if (!list_empty(&imx_ep->queue)) { - req = list_entry(imx_ep->queue.next, struct imx_request, queue); - - switch (imx_ep->imx_usb->ep0state) { - - case EP0_IN_DATA_PHASE: /* GET_DESCRIPTOR */ - write_fifo(imx_ep, req); - break; - case EP0_OUT_DATA_PHASE: /* SET_DESCRIPTOR */ - read_fifo(imx_ep, req); - break; - default: - D_EP0(imx_ep->imx_usb->dev, - "<%s> ep0 i/o, odd state %d\n", - __func__, imx_ep->imx_usb->ep0state); - ep_del_request(imx_ep, req); - ret = -EL2HLT; - break; - } - } - - else - D_ERR(imx_ep->imx_usb->dev, "<%s> no request on %s\n", - __func__, imx_ep->ep.name); - - return ret; -} - -static void handle_ep0_devreq(struct imx_udc_struct *imx_usb) -{ - struct imx_ep_struct *imx_ep = &imx_usb->imx_ep[0]; - union { - struct usb_ctrlrequest r; - u8 raw[8]; - u32 word[2]; - } u; - int temp, i; - - nuke(imx_ep, -EPROTO); - - /* read SETUP packet */ - for (i = 0; i < 2; i++) { - if (imx_ep_empty(imx_ep)) { - D_ERR(imx_usb->dev, - "<%s> no setup packet received\n", __func__); - goto stall; - } - u.word[i] = __raw_readl(imx_usb->base - + USB_EP_FDAT(EP_NO(imx_ep))); - } - - temp = imx_ep_empty(imx_ep); - while (!imx_ep_empty(imx_ep)) { - i = __raw_readl(imx_usb->base + USB_EP_FDAT(EP_NO(imx_ep))); - D_ERR(imx_usb->dev, - "<%s> wrong to have extra bytes for setup : 0x%08x\n", - __func__, i); - } - if (!temp) - goto stall; - - le16_to_cpus(&u.r.wValue); - le16_to_cpus(&u.r.wIndex); - le16_to_cpus(&u.r.wLength); - - D_REQ(imx_usb->dev, "<%s> SETUP %02x.%02x v%04x i%04x l%04x\n", - __func__, u.r.bRequestType, u.r.bRequest, - u.r.wValue, u.r.wIndex, u.r.wLength); - - if (imx_usb->set_config) { - /* NACK the host by using CMDOVER */ - temp = __raw_readl(imx_usb->base + USB_CTRL); - __raw_writel(temp | CTRL_CMDOVER, imx_usb->base + USB_CTRL); - - D_ERR(imx_usb->dev, - "<%s> set config req is pending, NACK the host\n", - __func__); - return; - } - - if (u.r.bRequestType & USB_DIR_IN) - ep0_chg_stat(__func__, imx_usb, EP0_IN_DATA_PHASE); - else - ep0_chg_stat(__func__, imx_usb, EP0_OUT_DATA_PHASE); - - i = imx_usb->driver->setup(&imx_usb->gadget, &u.r); - if (i < 0) { - D_ERR(imx_usb->dev, "<%s> device setup error %d\n", - __func__, i); - goto stall; - } - - return; -stall: - D_ERR(imx_usb->dev, "<%s> protocol STALL\n", __func__); - imx_ep_stall(imx_ep); - ep0_chg_stat(__func__, imx_usb, EP0_STALL); - return; -} - -/******************************************************************************* - * USB gadget callback functions - ******************************************************************************* - */ - -static int imx_ep_enable(struct usb_ep *usb_ep, - const struct usb_endpoint_descriptor *desc) -{ - struct imx_ep_struct *imx_ep = container_of(usb_ep, - struct imx_ep_struct, ep); - struct imx_udc_struct *imx_usb = imx_ep->imx_usb; - unsigned long flags; - - if (!usb_ep - || !desc - || !EP_NO(imx_ep) - || desc->bDescriptorType != USB_DT_ENDPOINT - || imx_ep->bEndpointAddress != desc->bEndpointAddress) { - D_ERR(imx_usb->dev, - "<%s> bad ep or descriptor\n", __func__); - return -EINVAL; - } - - if (imx_ep->bmAttributes != desc->bmAttributes) { - D_ERR(imx_usb->dev, - "<%s> %s type mismatch\n", __func__, usb_ep->name); - return -EINVAL; - } - - if (imx_ep->fifosize < usb_endpoint_maxp(desc)) { - D_ERR(imx_usb->dev, - "<%s> bad %s maxpacket\n", __func__, usb_ep->name); - return -ERANGE; - } - - if (!imx_usb->driver || imx_usb->gadget.speed == USB_SPEED_UNKNOWN) { - D_ERR(imx_usb->dev, "<%s> bogus device state\n", __func__); - return -ESHUTDOWN; - } - - local_irq_save(flags); - - imx_ep->stopped = 0; - imx_flush(imx_ep); - imx_ep_irq_enable(imx_ep); - - local_irq_restore(flags); - - D_EPX(imx_usb->dev, "<%s> ENABLED %s\n", __func__, usb_ep->name); - return 0; -} - -static int imx_ep_disable(struct usb_ep *usb_ep) -{ - struct imx_ep_struct *imx_ep = container_of(usb_ep, - struct imx_ep_struct, ep); - unsigned long flags; - - if (!usb_ep || !EP_NO(imx_ep) || !list_empty(&imx_ep->queue)) { - D_ERR(imx_ep->imx_usb->dev, "<%s> %s can not be disabled\n", - __func__, usb_ep ? imx_ep->ep.name : NULL); - return -EINVAL; - } - - local_irq_save(flags); - - imx_ep->stopped = 1; - nuke(imx_ep, -ESHUTDOWN); - imx_flush(imx_ep); - imx_ep_irq_disable(imx_ep); - - local_irq_restore(flags); - - D_EPX(imx_ep->imx_usb->dev, - "<%s> DISABLED %s\n", __func__, usb_ep->name); - return 0; -} - -static struct usb_request *imx_ep_alloc_request - (struct usb_ep *usb_ep, gfp_t gfp_flags) -{ - struct imx_request *req; - - if (!usb_ep) - return NULL; - - req = kzalloc(sizeof *req, gfp_flags); - if (!req) - return NULL; - - INIT_LIST_HEAD(&req->queue); - req->in_use = 0; - - return &req->req; -} - -static void imx_ep_free_request - (struct usb_ep *usb_ep, struct usb_request *usb_req) -{ - struct imx_request *req; - - req = container_of(usb_req, struct imx_request, req); - WARN_ON(!list_empty(&req->queue)); - kfree(req); -} - -static int imx_ep_queue - (struct usb_ep *usb_ep, struct usb_request *usb_req, gfp_t gfp_flags) -{ - struct imx_ep_struct *imx_ep; - struct imx_udc_struct *imx_usb; - struct imx_request *req; - unsigned long flags; - int ret = 0; - - imx_ep = container_of(usb_ep, struct imx_ep_struct, ep); - imx_usb = imx_ep->imx_usb; - req = container_of(usb_req, struct imx_request, req); - - /* - Special care on IMX udc. - Ignore enqueue when after set configuration from the - host. This assume all gadget drivers reply set - configuration with the next ep0 req enqueue. - */ - if (imx_usb->set_config && !EP_NO(imx_ep)) { - imx_usb->set_config = 0; - D_ERR(imx_usb->dev, - "<%s> gadget reply set config\n", __func__); - return 0; - } - - if (unlikely(!usb_req || !req || !usb_req->complete || !usb_req->buf)) { - D_ERR(imx_usb->dev, "<%s> bad params\n", __func__); - return -EINVAL; - } - - if (unlikely(!usb_ep || !imx_ep)) { - D_ERR(imx_usb->dev, "<%s> bad ep\n", __func__); - return -EINVAL; - } - - if (!imx_usb->driver || imx_usb->gadget.speed == USB_SPEED_UNKNOWN) { - D_ERR(imx_usb->dev, "<%s> bogus device state\n", __func__); - return -ESHUTDOWN; - } - - /* Debug */ - D_REQ(imx_usb->dev, "<%s> ep%d %s request for [%d] bytes\n", - __func__, EP_NO(imx_ep), - ((!EP_NO(imx_ep) && imx_ep->imx_usb->ep0state - == EP0_IN_DATA_PHASE) - || (EP_NO(imx_ep) && EP_DIR(imx_ep))) - ? "IN" : "OUT", usb_req->length); - dump_req(__func__, imx_ep, usb_req); - - if (imx_ep->stopped) { - usb_req->status = -ESHUTDOWN; - return -ESHUTDOWN; - } - - if (req->in_use) { - D_ERR(imx_usb->dev, - "<%s> refusing to queue req %p (already queued)\n", - __func__, req); - return 0; - } - - local_irq_save(flags); - - usb_req->status = -EINPROGRESS; - usb_req->actual = 0; - - ep_add_request(imx_ep, req); - - if (!EP_NO(imx_ep)) - ret = handle_ep0(imx_ep); - else - ret = handle_ep(imx_ep); - - local_irq_restore(flags); - return ret; -} - -static int imx_ep_dequeue(struct usb_ep *usb_ep, struct usb_request *usb_req) -{ - - struct imx_ep_struct *imx_ep = container_of - (usb_ep, struct imx_ep_struct, ep); - struct imx_request *req; - unsigned long flags; - - if (unlikely(!usb_ep || !EP_NO(imx_ep))) { - D_ERR(imx_ep->imx_usb->dev, "<%s> bad ep\n", __func__); - return -EINVAL; - } - - local_irq_save(flags); - - /* make sure it's actually queued on this endpoint */ - list_for_each_entry(req, &imx_ep->queue, queue) { - if (&req->req == usb_req) - break; - } - if (&req->req != usb_req) { - local_irq_restore(flags); - return -EINVAL; - } - - done(imx_ep, req, -ECONNRESET); - - local_irq_restore(flags); - return 0; -} - -static int imx_ep_set_halt(struct usb_ep *usb_ep, int value) -{ - struct imx_ep_struct *imx_ep = container_of - (usb_ep, struct imx_ep_struct, ep); - unsigned long flags; - - if (unlikely(!usb_ep || !EP_NO(imx_ep))) { - D_ERR(imx_ep->imx_usb->dev, "<%s> bad ep\n", __func__); - return -EINVAL; - } - - local_irq_save(flags); - - if ((imx_ep->bEndpointAddress & USB_DIR_IN) - && !list_empty(&imx_ep->queue)) { - local_irq_restore(flags); - return -EAGAIN; - } - - imx_ep_stall(imx_ep); - - local_irq_restore(flags); - - D_EPX(imx_ep->imx_usb->dev, "<%s> %s halt\n", __func__, usb_ep->name); - return 0; -} - -static int imx_ep_fifo_status(struct usb_ep *usb_ep) -{ - struct imx_ep_struct *imx_ep = container_of - (usb_ep, struct imx_ep_struct, ep); - - if (!usb_ep) { - D_ERR(imx_ep->imx_usb->dev, "<%s> bad ep\n", __func__); - return -ENODEV; - } - - if (imx_ep->imx_usb->gadget.speed == USB_SPEED_UNKNOWN) - return 0; - else - return imx_fifo_bcount(imx_ep); -} - -static void imx_ep_fifo_flush(struct usb_ep *usb_ep) -{ - struct imx_ep_struct *imx_ep = container_of - (usb_ep, struct imx_ep_struct, ep); - unsigned long flags; - - local_irq_save(flags); - - if (!usb_ep || !EP_NO(imx_ep) || !list_empty(&imx_ep->queue)) { - D_ERR(imx_ep->imx_usb->dev, "<%s> bad ep\n", __func__); - local_irq_restore(flags); - return; - } - - /* toggle and halt bits stay unchanged */ - imx_flush(imx_ep); - - local_irq_restore(flags); -} - -static struct usb_ep_ops imx_ep_ops = { - .enable = imx_ep_enable, - .disable = imx_ep_disable, - - .alloc_request = imx_ep_alloc_request, - .free_request = imx_ep_free_request, - - .queue = imx_ep_queue, - .dequeue = imx_ep_dequeue, - - .set_halt = imx_ep_set_halt, - .fifo_status = imx_ep_fifo_status, - .fifo_flush = imx_ep_fifo_flush, -}; - -/******************************************************************************* - * USB endpoint control functions - ******************************************************************************* - */ - -void ep0_chg_stat(const char *label, - struct imx_udc_struct *imx_usb, enum ep0_state stat) -{ - D_EP0(imx_usb->dev, "<%s> from %15s to %15s\n", - label, state_name[imx_usb->ep0state], state_name[stat]); - - if (imx_usb->ep0state == stat) - return; - - imx_usb->ep0state = stat; -} - -static void usb_init_data(struct imx_udc_struct *imx_usb) -{ - struct imx_ep_struct *imx_ep; - u8 i; - - /* device/ep0 records init */ - INIT_LIST_HEAD(&imx_usb->gadget.ep_list); - INIT_LIST_HEAD(&imx_usb->gadget.ep0->ep_list); - ep0_chg_stat(__func__, imx_usb, EP0_IDLE); - - /* basic endpoint records init */ - for (i = 0; i < IMX_USB_NB_EP; i++) { - imx_ep = &imx_usb->imx_ep[i]; - - if (i) { - list_add_tail(&imx_ep->ep.ep_list, - &imx_usb->gadget.ep_list); - imx_ep->stopped = 1; - } else - imx_ep->stopped = 0; - - INIT_LIST_HEAD(&imx_ep->queue); - } -} - -static void udc_stop_activity(struct imx_udc_struct *imx_usb, - struct usb_gadget_driver *driver) -{ - struct imx_ep_struct *imx_ep; - int i; - - if (imx_usb->gadget.speed == USB_SPEED_UNKNOWN) - driver = NULL; - - /* prevent new request submissions, kill any outstanding requests */ - for (i = 1; i < IMX_USB_NB_EP; i++) { - imx_ep = &imx_usb->imx_ep[i]; - imx_flush(imx_ep); - imx_ep->stopped = 1; - imx_ep_irq_disable(imx_ep); - nuke(imx_ep, -ESHUTDOWN); - } - - imx_usb->cfg = 0; - imx_usb->intf = 0; - imx_usb->alt = 0; - - if (driver) - driver->disconnect(&imx_usb->gadget); -} - -/******************************************************************************* - * Interrupt handlers - ******************************************************************************* - */ - -/* - * Called when timer expires. - * Timer is started when CFG_CHG is received. - */ -static void handle_config(unsigned long data) -{ - struct imx_udc_struct *imx_usb = (void *)data; - struct usb_ctrlrequest u; - int temp, cfg, intf, alt; - - local_irq_disable(); - - temp = __raw_readl(imx_usb->base + USB_STAT); - cfg = (temp & STAT_CFG) >> 5; - intf = (temp & STAT_INTF) >> 3; - alt = temp & STAT_ALTSET; - - D_REQ(imx_usb->dev, - "<%s> orig config C=%d, I=%d, A=%d / " - "req config C=%d, I=%d, A=%d\n", - __func__, imx_usb->cfg, imx_usb->intf, imx_usb->alt, - cfg, intf, alt); - - if (cfg == 1 || cfg == 2) { - - if (imx_usb->cfg != cfg) { - u.bRequest = USB_REQ_SET_CONFIGURATION; - u.bRequestType = USB_DIR_OUT | - USB_TYPE_STANDARD | - USB_RECIP_DEVICE; - u.wValue = cfg; - u.wIndex = 0; - u.wLength = 0; - imx_usb->cfg = cfg; - imx_usb->driver->setup(&imx_usb->gadget, &u); - - } - if (imx_usb->intf != intf || imx_usb->alt != alt) { - u.bRequest = USB_REQ_SET_INTERFACE; - u.bRequestType = USB_DIR_OUT | - USB_TYPE_STANDARD | - USB_RECIP_INTERFACE; - u.wValue = alt; - u.wIndex = intf; - u.wLength = 0; - imx_usb->intf = intf; - imx_usb->alt = alt; - imx_usb->driver->setup(&imx_usb->gadget, &u); - } - } - - imx_usb->set_config = 0; - - local_irq_enable(); -} - -static irqreturn_t imx_udc_irq(int irq, void *dev) -{ - struct imx_udc_struct *imx_usb = dev; - int intr = __raw_readl(imx_usb->base + USB_INTR); - int temp; - - if (intr & (INTR_WAKEUP | INTR_SUSPEND | INTR_RESUME | INTR_RESET_START - | INTR_RESET_STOP | INTR_CFG_CHG)) { - dump_intr(__func__, intr, imx_usb->dev); - dump_usb_stat(__func__, imx_usb); - } - - if (!imx_usb->driver) - goto end_irq; - - if (intr & INTR_SOF) { - /* Copy from Freescale BSP. - We must enable SOF intr and set CMDOVER. - Datasheet don't specifiy this action, but it - is done in Freescale BSP, so just copy it. - */ - if (imx_usb->ep0state == EP0_IDLE) { - temp = __raw_readl(imx_usb->base + USB_CTRL); - __raw_writel(temp | CTRL_CMDOVER, - imx_usb->base + USB_CTRL); - } - } - - if (intr & INTR_CFG_CHG) { - /* A workaround of serious IMX UDC bug. - Handling of CFG_CHG should be delayed for some time, because - IMX does not NACK the host when CFG_CHG interrupt is pending. - There is no time to handle current CFG_CHG - if next CFG_CHG or SETUP packed is send immediately. - We have to clear CFG_CHG, start the timer and - NACK the host by setting CTRL_CMDOVER - if it sends any SETUP packet. - When timer expires, handler is called to handle configuration - changes. While CFG_CHG is not handled (set_config=1), - we must NACK the host to every SETUP packed. - This delay prevents from going out of sync with host. - */ - __raw_writel(INTR_CFG_CHG, imx_usb->base + USB_INTR); - imx_usb->set_config = 1; - mod_timer(&imx_usb->timer, jiffies + 5); - goto end_irq; - } - - if (intr & INTR_WAKEUP) { - if (imx_usb->gadget.speed == USB_SPEED_UNKNOWN - && imx_usb->driver && imx_usb->driver->resume) - imx_usb->driver->resume(&imx_usb->gadget); - imx_usb->set_config = 0; - del_timer(&imx_usb->timer); - imx_usb->gadget.speed = USB_SPEED_FULL; - } - - if (intr & INTR_SUSPEND) { - if (imx_usb->gadget.speed != USB_SPEED_UNKNOWN - && imx_usb->driver && imx_usb->driver->suspend) - imx_usb->driver->suspend(&imx_usb->gadget); - imx_usb->set_config = 0; - del_timer(&imx_usb->timer); - imx_usb->gadget.speed = USB_SPEED_UNKNOWN; - } - - if (intr & INTR_RESET_START) { - __raw_writel(intr, imx_usb->base + USB_INTR); - udc_stop_activity(imx_usb, imx_usb->driver); - imx_usb->set_config = 0; - del_timer(&imx_usb->timer); - imx_usb->gadget.speed = USB_SPEED_UNKNOWN; - } - - if (intr & INTR_RESET_STOP) - imx_usb->gadget.speed = USB_SPEED_FULL; - -end_irq: - __raw_writel(intr, imx_usb->base + USB_INTR); - return IRQ_HANDLED; -} - -static irqreturn_t imx_udc_ctrl_irq(int irq, void *dev) -{ - struct imx_udc_struct *imx_usb = dev; - struct imx_ep_struct *imx_ep = &imx_usb->imx_ep[0]; - int intr = __raw_readl(imx_usb->base + USB_EP_INTR(0)); - - dump_ep_intr(__func__, 0, intr, imx_usb->dev); - - if (!imx_usb->driver) { - __raw_writel(intr, imx_usb->base + USB_EP_INTR(0)); - return IRQ_HANDLED; - } - - /* DEVREQ has highest priority */ - if (intr & (EPINTR_DEVREQ | EPINTR_MDEVREQ)) - handle_ep0_devreq(imx_usb); - /* Seem i.MX is missing EOF interrupt sometimes. - * Therefore we don't monitor EOF. - * We call handle_ep0() only if a request is queued for ep0. - */ - else if (!list_empty(&imx_ep->queue)) - handle_ep0(imx_ep); - - __raw_writel(intr, imx_usb->base + USB_EP_INTR(0)); - - return IRQ_HANDLED; -} - -#ifndef MX1_INT_USBD0 -#define MX1_INT_USBD0 MX1_USBD_INT0 -#endif - -static irqreturn_t imx_udc_bulk_irq(int irq, void *dev) -{ - struct imx_udc_struct *imx_usb = dev; - struct imx_ep_struct *imx_ep = &imx_usb->imx_ep[irq - MX1_INT_USBD0]; - int intr = __raw_readl(imx_usb->base + USB_EP_INTR(EP_NO(imx_ep))); - - dump_ep_intr(__func__, irq - MX1_INT_USBD0, intr, imx_usb->dev); - - if (!imx_usb->driver) { - __raw_writel(intr, imx_usb->base + USB_EP_INTR(EP_NO(imx_ep))); - return IRQ_HANDLED; - } - - handle_ep(imx_ep); - - __raw_writel(intr, imx_usb->base + USB_EP_INTR(EP_NO(imx_ep))); - - return IRQ_HANDLED; -} - -irq_handler_t intr_handler(int i) -{ - switch (i) { - case 0: - return imx_udc_ctrl_irq; - case 1: - case 2: - case 3: - case 4: - case 5: - return imx_udc_bulk_irq; - default: - return imx_udc_irq; - } -} - -/******************************************************************************* - * Static defined IMX UDC structure - ******************************************************************************* - */ - -static int imx_udc_start(struct usb_gadget *gadget, - struct usb_gadget_driver *driver); -static int imx_udc_stop(struct usb_gadget *gadget, - struct usb_gadget_driver *driver); -static const struct usb_gadget_ops imx_udc_ops = { - .get_frame = imx_udc_get_frame, - .wakeup = imx_udc_wakeup, - .udc_start = imx_udc_start, - .udc_stop = imx_udc_stop, -}; - -static struct imx_udc_struct controller = { - .gadget = { - .ops = &imx_udc_ops, - .ep0 = &controller.imx_ep[0].ep, - .name = driver_name, - .dev = { - .init_name = "gadget", - }, - }, - - .imx_ep[0] = { - .ep = { - .name = ep0name, - .ops = &imx_ep_ops, - .maxpacket = 32, - }, - .imx_usb = &controller, - .fifosize = 32, - .bEndpointAddress = 0, - .bmAttributes = USB_ENDPOINT_XFER_CONTROL, - }, - .imx_ep[1] = { - .ep = { - .name = "ep1in-bulk", - .ops = &imx_ep_ops, - .maxpacket = 64, - }, - .imx_usb = &controller, - .fifosize = 64, - .bEndpointAddress = USB_DIR_IN | 1, - .bmAttributes = USB_ENDPOINT_XFER_BULK, - }, - .imx_ep[2] = { - .ep = { - .name = "ep2out-bulk", - .ops = &imx_ep_ops, - .maxpacket = 64, - }, - .imx_usb = &controller, - .fifosize = 64, - .bEndpointAddress = USB_DIR_OUT | 2, - .bmAttributes = USB_ENDPOINT_XFER_BULK, - }, - .imx_ep[3] = { - .ep = { - .name = "ep3out-bulk", - .ops = &imx_ep_ops, - .maxpacket = 32, - }, - .imx_usb = &controller, - .fifosize = 32, - .bEndpointAddress = USB_DIR_OUT | 3, - .bmAttributes = USB_ENDPOINT_XFER_BULK, - }, - .imx_ep[4] = { - .ep = { - .name = "ep4in-int", - .ops = &imx_ep_ops, - .maxpacket = 32, - }, - .imx_usb = &controller, - .fifosize = 32, - .bEndpointAddress = USB_DIR_IN | 4, - .bmAttributes = USB_ENDPOINT_XFER_INT, - }, - .imx_ep[5] = { - .ep = { - .name = "ep5out-int", - .ops = &imx_ep_ops, - .maxpacket = 32, - }, - .imx_usb = &controller, - .fifosize = 32, - .bEndpointAddress = USB_DIR_OUT | 5, - .bmAttributes = USB_ENDPOINT_XFER_INT, - }, -}; - -/******************************************************************************* - * USB gadget driver functions - ******************************************************************************* - */ -static int imx_udc_start(struct usb_gadget *gadget, - struct usb_gadget_driver *driver) -{ - struct imx_udc_struct *imx_usb; - - imx_usb = container_of(gadget, struct imx_udc_struct, gadget); - /* first hook up the driver ... */ - imx_usb->driver = driver; - - D_INI(imx_usb->dev, "<%s> registered gadget driver '%s'\n", - __func__, driver->driver.name); - - imx_udc_enable(imx_usb); - - return 0; -} - -static int imx_udc_stop(struct usb_gadget *gadget, - struct usb_gadget_driver *driver) -{ - struct imx_udc_struct *imx_usb = container_of(gadget, - struct imx_udc_struct, gadget); - - udc_stop_activity(imx_usb, driver); - imx_udc_disable(imx_usb); - del_timer(&imx_usb->timer); - - imx_usb->driver = NULL; - - D_INI(imx_usb->dev, "<%s> unregistered gadget driver '%s'\n", - __func__, driver->driver.name); - - return 0; -} - -/******************************************************************************* - * Module functions - ******************************************************************************* - */ - -static int __init imx_udc_probe(struct platform_device *pdev) -{ - struct imx_udc_struct *imx_usb = &controller; - struct resource *res; - struct imxusb_platform_data *pdata; - struct clk *clk; - void __iomem *base; - int ret = 0; - int i; - resource_size_t res_size; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "can't get device resources\n"); - return -ENODEV; - } - - pdata = pdev->dev.platform_data; - if (!pdata) { - dev_err(&pdev->dev, "driver needs platform data\n"); - return -ENODEV; - } - - res_size = resource_size(res); - if (!request_mem_region(res->start, res_size, res->name)) { - dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n", - res_size, res->start); - return -ENOMEM; - } - - if (pdata->init) { - ret = pdata->init(&pdev->dev); - if (ret) - goto fail0; - } - - base = ioremap(res->start, res_size); - if (!base) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -EIO; - goto fail1; - } - - clk = clk_get(NULL, "usbd_clk"); - if (IS_ERR(clk)) { - ret = PTR_ERR(clk); - dev_err(&pdev->dev, "can't get USB clock\n"); - goto fail2; - } - clk_prepare_enable(clk); - - if (clk_get_rate(clk) != 48000000) { - D_INI(&pdev->dev, - "Bad USB clock (%d Hz), changing to 48000000 Hz\n", - (int)clk_get_rate(clk)); - if (clk_set_rate(clk, 48000000)) { - dev_err(&pdev->dev, - "Unable to set correct USB clock (48MHz)\n"); - ret = -EIO; - goto fail3; - } - } - - for (i = 0; i < IMX_USB_NB_EP + 1; i++) { - imx_usb->usbd_int[i] = platform_get_irq(pdev, i); - if (imx_usb->usbd_int[i] < 0) { - dev_err(&pdev->dev, "can't get irq number\n"); - ret = -ENODEV; - goto fail3; - } - } - - for (i = 0; i < IMX_USB_NB_EP + 1; i++) { - ret = request_irq(imx_usb->usbd_int[i], intr_handler(i), - 0, driver_name, imx_usb); - if (ret) { - dev_err(&pdev->dev, "can't get irq %i, err %d\n", - imx_usb->usbd_int[i], ret); - for (--i; i >= 0; i--) - free_irq(imx_usb->usbd_int[i], imx_usb); - goto fail3; - } - } - - imx_usb->res = res; - imx_usb->base = base; - imx_usb->clk = clk; - imx_usb->dev = &pdev->dev; - - platform_set_drvdata(pdev, imx_usb); - - usb_init_data(imx_usb); - imx_udc_init(imx_usb); - - init_timer(&imx_usb->timer); - imx_usb->timer.function = handle_config; - imx_usb->timer.data = (unsigned long)imx_usb; - - ret = usb_add_gadget_udc(&pdev->dev, &imx_usb->gadget); - if (ret) - goto fail4; - - return 0; -fail4: - for (i = 0; i < IMX_USB_NB_EP + 1; i++) - free_irq(imx_usb->usbd_int[i], imx_usb); -fail3: - clk_put(clk); - clk_disable_unprepare(clk); -fail2: - iounmap(base); -fail1: - if (pdata->exit) - pdata->exit(&pdev->dev); -fail0: - release_mem_region(res->start, res_size); - return ret; -} - -static int __exit imx_udc_remove(struct platform_device *pdev) -{ - struct imx_udc_struct *imx_usb = platform_get_drvdata(pdev); - struct imxusb_platform_data *pdata = pdev->dev.platform_data; - int i; - - usb_del_gadget_udc(&imx_usb->gadget); - imx_udc_disable(imx_usb); - del_timer(&imx_usb->timer); - - for (i = 0; i < IMX_USB_NB_EP + 1; i++) - free_irq(imx_usb->usbd_int[i], imx_usb); - - clk_put(imx_usb->clk); - clk_disable_unprepare(imx_usb->clk); - iounmap(imx_usb->base); - - release_mem_region(imx_usb->res->start, resource_size(imx_usb->res)); - - if (pdata->exit) - pdata->exit(&pdev->dev); - - return 0; -} - -/*----------------------------------------------------------------------------*/ - -#ifdef CONFIG_PM -#define imx_udc_suspend NULL -#define imx_udc_resume NULL -#else -#define imx_udc_suspend NULL -#define imx_udc_resume NULL -#endif - -/*----------------------------------------------------------------------------*/ - -static struct platform_driver udc_driver = { - .driver = { - .name = driver_name, - .owner = THIS_MODULE, - }, - .remove = __exit_p(imx_udc_remove), - .suspend = imx_udc_suspend, - .resume = imx_udc_resume, -}; - -module_platform_driver_probe(udc_driver, imx_udc_probe); - -MODULE_DESCRIPTION("IMX USB Device Controller driver"); -MODULE_AUTHOR("Darius Augulis <augulis.darius@gmail.com>"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:imx_udc"); diff --git a/drivers/usb/gadget/imx_udc.h b/drivers/usb/gadget/imx_udc.h deleted file mode 100644 index d118fb777840..000000000000 --- a/drivers/usb/gadget/imx_udc.h +++ /dev/null @@ -1,351 +0,0 @@ -/* - * Copyright (C) 2005 Mike Lee(eemike@gmail.com) - * - * This udc driver is now under testing and code is based on pxa2xx_udc.h - * Please use it with your own risk! - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __LINUX_USB_GADGET_IMX_H -#define __LINUX_USB_GADGET_IMX_H - -#include <linux/types.h> - -/* Helper macros */ -#define EP_NO(ep) ((ep->bEndpointAddress) & ~USB_DIR_IN) /* IN:1, OUT:0 */ -#define EP_DIR(ep) ((ep->bEndpointAddress) & USB_DIR_IN ? 1 : 0) -#define IMX_USB_NB_EP 6 - -/* Driver structures */ -struct imx_request { - struct usb_request req; - struct list_head queue; - unsigned int in_use; -}; - -enum ep0_state { - EP0_IDLE, - EP0_IN_DATA_PHASE, - EP0_OUT_DATA_PHASE, - EP0_CONFIG, - EP0_STALL, -}; - -struct imx_ep_struct { - struct usb_ep ep; - struct imx_udc_struct *imx_usb; - struct list_head queue; - unsigned char stopped; - unsigned char fifosize; - unsigned char bEndpointAddress; - unsigned char bmAttributes; -}; - -struct imx_udc_struct { - struct usb_gadget gadget; - struct usb_gadget_driver *driver; - struct device *dev; - struct imx_ep_struct imx_ep[IMX_USB_NB_EP]; - struct clk *clk; - struct timer_list timer; - enum ep0_state ep0state; - struct resource *res; - void __iomem *base; - unsigned char set_config; - int cfg, - intf, - alt, - usbd_int[7]; -}; - -/* USB registers */ -#define USB_FRAME (0x00) /* USB frame */ -#define USB_SPEC (0x04) /* USB Spec */ -#define USB_STAT (0x08) /* USB Status */ -#define USB_CTRL (0x0C) /* USB Control */ -#define USB_DADR (0x10) /* USB Desc RAM addr */ -#define USB_DDAT (0x14) /* USB Desc RAM/EP buffer data */ -#define USB_INTR (0x18) /* USB interrupt */ -#define USB_MASK (0x1C) /* USB Mask */ -#define USB_ENAB (0x24) /* USB Enable */ -#define USB_EP_STAT(x) (0x30 + (x*0x30)) /* USB status/control */ -#define USB_EP_INTR(x) (0x34 + (x*0x30)) /* USB interrupt */ -#define USB_EP_MASK(x) (0x38 + (x*0x30)) /* USB mask */ -#define USB_EP_FDAT(x) (0x3C + (x*0x30)) /* USB FIFO data */ -#define USB_EP_FDAT0(x) (0x3C + (x*0x30)) /* USB FIFO data */ -#define USB_EP_FDAT1(x) (0x3D + (x*0x30)) /* USB FIFO data */ -#define USB_EP_FDAT2(x) (0x3E + (x*0x30)) /* USB FIFO data */ -#define USB_EP_FDAT3(x) (0x3F + (x*0x30)) /* USB FIFO data */ -#define USB_EP_FSTAT(x) (0x40 + (x*0x30)) /* USB FIFO status */ -#define USB_EP_FCTRL(x) (0x44 + (x*0x30)) /* USB FIFO control */ -#define USB_EP_LRFP(x) (0x48 + (x*0x30)) /* USB last rd f. pointer */ -#define USB_EP_LWFP(x) (0x4C + (x*0x30)) /* USB last wr f. pointer */ -#define USB_EP_FALRM(x) (0x50 + (x*0x30)) /* USB FIFO alarm */ -#define USB_EP_FRDP(x) (0x54 + (x*0x30)) /* USB FIFO read pointer */ -#define USB_EP_FWRP(x) (0x58 + (x*0x30)) /* USB FIFO write pointer */ -/* USB Control Register Bit Fields.*/ -#define CTRL_CMDOVER (1<<6) /* UDC status */ -#define CTRL_CMDERROR (1<<5) /* UDC status */ -#define CTRL_FE_ENA (1<<3) /* Enable Font End logic */ -#define CTRL_UDC_RST (1<<2) /* UDC reset */ -#define CTRL_AFE_ENA (1<<1) /* Analog Font end enable */ -#define CTRL_RESUME (1<<0) /* UDC resume */ -/* USB Status Register Bit Fields.*/ -#define STAT_RST (1<<8) -#define STAT_SUSP (1<<7) -#define STAT_CFG (3<<5) -#define STAT_INTF (3<<3) -#define STAT_ALTSET (7<<0) -/* USB Interrupt Status/Mask Registers Bit fields */ -#define INTR_WAKEUP (1<<31) /* Wake up Interrupt */ -#define INTR_MSOF (1<<7) /* Missed Start of Frame */ -#define INTR_SOF (1<<6) /* Start of Frame */ -#define INTR_RESET_STOP (1<<5) /* Reset Signaling stop */ -#define INTR_RESET_START (1<<4) /* Reset Signaling start */ -#define INTR_RESUME (1<<3) /* Suspend to resume */ -#define INTR_SUSPEND (1<<2) /* Active to suspend */ -#define INTR_FRAME_MATCH (1<<1) /* Frame matched */ -#define INTR_CFG_CHG (1<<0) /* Configuration change occurred */ -/* USB Enable Register Bit Fields.*/ -#define ENAB_RST (1<<31) /* Reset USB modules */ -#define ENAB_ENAB (1<<30) /* Enable USB modules*/ -#define ENAB_SUSPEND (1<<29) /* Suspend USB modules */ -#define ENAB_ENDIAN (1<<28) /* Endian of USB modules */ -#define ENAB_PWRMD (1<<0) /* Power mode of USB modules */ -/* USB Descriptor Ram Address Register bit fields */ -#define DADR_CFG (1<<31) /* Configuration */ -#define DADR_BSY (1<<30) /* Busy status */ -#define DADR_DADR (0x1FF) /* Descriptor Ram Address */ -/* USB Descriptor RAM/Endpoint Buffer Data Register bit fields */ -#define DDAT_DDAT (0xFF) /* Descriptor Endpoint Buffer */ -/* USB Endpoint Status Register bit fields */ -#define EPSTAT_BCOUNT (0x7F<<16) /* Endpoint FIFO byte count */ -#define EPSTAT_SIP (1<<8) /* Endpoint setup in progress */ -#define EPSTAT_DIR (1<<7) /* Endpoint transfer direction */ -#define EPSTAT_MAX (3<<5) /* Endpoint Max packet size */ -#define EPSTAT_TYP (3<<3) /* Endpoint type */ -#define EPSTAT_ZLPS (1<<2) /* Send zero length packet */ -#define EPSTAT_FLUSH (1<<1) /* Endpoint FIFO Flush */ -#define EPSTAT_STALL (1<<0) /* Force stall */ -/* USB Endpoint FIFO Status Register bit fields */ -#define FSTAT_FRAME_STAT (0xF<<24) /* Frame status bit [0-3] */ -#define FSTAT_ERR (1<<22) /* FIFO error */ -#define FSTAT_UF (1<<21) /* FIFO underflow */ -#define FSTAT_OF (1<<20) /* FIFO overflow */ -#define FSTAT_FR (1<<19) /* FIFO frame ready */ -#define FSTAT_FULL (1<<18) /* FIFO full */ -#define FSTAT_ALRM (1<<17) /* FIFO alarm */ -#define FSTAT_EMPTY (1<<16) /* FIFO empty */ -/* USB Endpoint FIFO Control Register bit fields */ -#define FCTRL_WFR (1<<29) /* Write frame end */ -/* USB Endpoint Interrupt Status Regsiter bit fields */ -#define EPINTR_FIFO_FULL (1<<8) /* fifo full */ -#define EPINTR_FIFO_EMPTY (1<<7) /* fifo empty */ -#define EPINTR_FIFO_ERROR (1<<6) /* fifo error */ -#define EPINTR_FIFO_HIGH (1<<5) /* fifo high */ -#define EPINTR_FIFO_LOW (1<<4) /* fifo low */ -#define EPINTR_MDEVREQ (1<<3) /* multi Device request */ -#define EPINTR_EOT (1<<2) /* fifo end of transfer */ -#define EPINTR_DEVREQ (1<<1) /* Device request */ -#define EPINTR_EOF (1<<0) /* fifo end of frame */ - -/* Debug macros */ -#ifdef DEBUG - -/* #define DEBUG_REQ */ -/* #define DEBUG_TRX */ -/* #define DEBUG_INIT */ -/* #define DEBUG_EP0 */ -/* #define DEBUG_EPX */ -/* #define DEBUG_IRQ */ -/* #define DEBUG_EPIRQ */ -/* #define DEBUG_DUMP */ -/* #define DEBUG_ERR */ - -#ifdef DEBUG_REQ - #define D_REQ(dev, args...) dev_dbg(dev, ## args) -#else - #define D_REQ(dev, args...) do {} while (0) -#endif /* DEBUG_REQ */ - -#ifdef DEBUG_TRX - #define D_TRX(dev, args...) dev_dbg(dev, ## args) -#else - #define D_TRX(dev, args...) do {} while (0) -#endif /* DEBUG_TRX */ - -#ifdef DEBUG_INIT - #define D_INI(dev, args...) dev_dbg(dev, ## args) -#else - #define D_INI(dev, args...) do {} while (0) -#endif /* DEBUG_INIT */ - -#ifdef DEBUG_EP0 - static const char *state_name[] = { - "EP0_IDLE", - "EP0_IN_DATA_PHASE", - "EP0_OUT_DATA_PHASE", - "EP0_CONFIG", - "EP0_STALL" - }; - #define D_EP0(dev, args...) dev_dbg(dev, ## args) -#else - #define D_EP0(dev, args...) do {} while (0) -#endif /* DEBUG_EP0 */ - -#ifdef DEBUG_EPX - #define D_EPX(dev, args...) dev_dbg(dev, ## args) -#else - #define D_EPX(dev, args...) do {} while (0) -#endif /* DEBUG_EP0 */ - -#ifdef DEBUG_IRQ - static void dump_intr(const char *label, int irqreg, struct device *dev) - { - dev_dbg(dev, "<%s> USB_INTR=[%s%s%s%s%s%s%s%s%s]\n", label, - (irqreg & INTR_WAKEUP) ? " wake" : "", - (irqreg & INTR_MSOF) ? " msof" : "", - (irqreg & INTR_SOF) ? " sof" : "", - (irqreg & INTR_RESUME) ? " resume" : "", - (irqreg & INTR_SUSPEND) ? " suspend" : "", - (irqreg & INTR_RESET_STOP) ? " noreset" : "", - (irqreg & INTR_RESET_START) ? " reset" : "", - (irqreg & INTR_FRAME_MATCH) ? " fmatch" : "", - (irqreg & INTR_CFG_CHG) ? " config" : ""); - } -#else - #define dump_intr(x, y, z) do {} while (0) -#endif /* DEBUG_IRQ */ - -#ifdef DEBUG_EPIRQ - static void dump_ep_intr(const char *label, int nr, int irqreg, - struct device *dev) - { - dev_dbg(dev, "<%s> EP%d_INTR=[%s%s%s%s%s%s%s%s%s]\n", label, nr, - (irqreg & EPINTR_FIFO_FULL) ? " full" : "", - (irqreg & EPINTR_FIFO_EMPTY) ? " fempty" : "", - (irqreg & EPINTR_FIFO_ERROR) ? " ferr" : "", - (irqreg & EPINTR_FIFO_HIGH) ? " fhigh" : "", - (irqreg & EPINTR_FIFO_LOW) ? " flow" : "", - (irqreg & EPINTR_MDEVREQ) ? " mreq" : "", - (irqreg & EPINTR_EOF) ? " eof" : "", - (irqreg & EPINTR_DEVREQ) ? " devreq" : "", - (irqreg & EPINTR_EOT) ? " eot" : ""); - } -#else - #define dump_ep_intr(x, y, z, i) do {} while (0) -#endif /* DEBUG_IRQ */ - -#ifdef DEBUG_DUMP - static void dump_usb_stat(const char *label, - struct imx_udc_struct *imx_usb) - { - int temp = __raw_readl(imx_usb->base + USB_STAT); - - dev_dbg(imx_usb->dev, - "<%s> USB_STAT=[%s%s CFG=%d, INTF=%d, ALTR=%d]\n", label, - (temp & STAT_RST) ? " reset" : "", - (temp & STAT_SUSP) ? " suspend" : "", - (temp & STAT_CFG) >> 5, - (temp & STAT_INTF) >> 3, - (temp & STAT_ALTSET)); - } - - static void dump_ep_stat(const char *label, - struct imx_ep_struct *imx_ep) - { - int temp = __raw_readl(imx_ep->imx_usb->base - + USB_EP_INTR(EP_NO(imx_ep))); - - dev_dbg(imx_ep->imx_usb->dev, - "<%s> EP%d_INTR=[%s%s%s%s%s%s%s%s%s]\n", - label, EP_NO(imx_ep), - (temp & EPINTR_FIFO_FULL) ? " full" : "", - (temp & EPINTR_FIFO_EMPTY) ? " fempty" : "", - (temp & EPINTR_FIFO_ERROR) ? " ferr" : "", - (temp & EPINTR_FIFO_HIGH) ? " fhigh" : "", - (temp & EPINTR_FIFO_LOW) ? " flow" : "", - (temp & EPINTR_MDEVREQ) ? " mreq" : "", - (temp & EPINTR_EOF) ? " eof" : "", - (temp & EPINTR_DEVREQ) ? " devreq" : "", - (temp & EPINTR_EOT) ? " eot" : ""); - - temp = __raw_readl(imx_ep->imx_usb->base - + USB_EP_STAT(EP_NO(imx_ep))); - - dev_dbg(imx_ep->imx_usb->dev, - "<%s> EP%d_STAT=[%s%s bcount=%d]\n", - label, EP_NO(imx_ep), - (temp & EPSTAT_SIP) ? " sip" : "", - (temp & EPSTAT_STALL) ? " stall" : "", - (temp & EPSTAT_BCOUNT) >> 16); - - temp = __raw_readl(imx_ep->imx_usb->base - + USB_EP_FSTAT(EP_NO(imx_ep))); - - dev_dbg(imx_ep->imx_usb->dev, - "<%s> EP%d_FSTAT=[%s%s%s%s%s%s%s]\n", - label, EP_NO(imx_ep), - (temp & FSTAT_ERR) ? " ferr" : "", - (temp & FSTAT_UF) ? " funder" : "", - (temp & FSTAT_OF) ? " fover" : "", - (temp & FSTAT_FR) ? " fready" : "", - (temp & FSTAT_FULL) ? " ffull" : "", - (temp & FSTAT_ALRM) ? " falarm" : "", - (temp & FSTAT_EMPTY) ? " fempty" : ""); - } - - static void dump_req(const char *label, struct imx_ep_struct *imx_ep, - struct usb_request *req) - { - int i; - - if (!req || !req->buf) { - dev_dbg(imx_ep->imx_usb->dev, - "<%s> req or req buf is free\n", label); - return; - } - - if ((!EP_NO(imx_ep) && imx_ep->imx_usb->ep0state - == EP0_IN_DATA_PHASE) - || (EP_NO(imx_ep) && EP_DIR(imx_ep))) { - - dev_dbg(imx_ep->imx_usb->dev, - "<%s> request dump <", label); - for (i = 0; i < req->length; i++) - printk("%02x-", *((u8 *)req->buf + i)); - printk(">\n"); - } - } - -#else - #define dump_ep_stat(x, y) do {} while (0) - #define dump_usb_stat(x, y) do {} while (0) - #define dump_req(x, y, z) do {} while (0) -#endif /* DEBUG_DUMP */ - -#ifdef DEBUG_ERR - #define D_ERR(dev, args...) dev_dbg(dev, ## args) -#else - #define D_ERR(dev, args...) do {} while (0) -#endif - -#else - #define D_REQ(dev, args...) do {} while (0) - #define D_TRX(dev, args...) do {} while (0) - #define D_INI(dev, args...) do {} while (0) - #define D_EP0(dev, args...) do {} while (0) - #define D_EPX(dev, args...) do {} while (0) - #define dump_ep_intr(x, y, z, i) do {} while (0) - #define dump_intr(x, y, z) do {} while (0) - #define dump_ep_stat(x, y) do {} while (0) - #define dump_usb_stat(x, y) do {} while (0) - #define dump_req(x, y, z) do {} while (0) - #define D_ERR(dev, args...) do {} while (0) -#endif /* DEBUG */ - -#endif /* __LINUX_USB_GADGET_IMX_H */ diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 570c005062ab..465ef8e2cc91 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -1270,10 +1270,6 @@ dev_release (struct inode *inode, struct file *fd) dev->buf = NULL; put_dev (dev); - /* other endpoints were all decoupled from this device */ - spin_lock_irq(&dev->lock); - dev->state = STATE_DEV_DISABLED; - spin_unlock_irq(&dev->lock); return 0; } diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index 46ba9838c3a0..d5f050d30edf 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -1584,7 +1584,7 @@ static int __init m66592_probe(struct platform_device *pdev) goto clean_up; } - if (pdev->dev.platform_data == NULL) { + if (dev_get_platdata(&pdev->dev) == NULL) { dev_err(&pdev->dev, "no platform data\n"); ret = -ENODEV; goto clean_up; @@ -1598,7 +1598,7 @@ static int __init m66592_probe(struct platform_device *pdev) goto clean_up; } - m66592->pdata = pdev->dev.platform_data; + m66592->pdata = dev_get_platdata(&pdev->dev); m66592->irq_trigger = ires->flags & IRQF_TRIGGER_MASK; spin_lock_init(&m66592->lock); diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index ec6a2d290398..bbb6e98c4384 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -1109,7 +1109,7 @@ static int mv_u3d_controller_reset(struct mv_u3d *u3d) static int mv_u3d_enable(struct mv_u3d *u3d) { - struct mv_usb_platform_data *pdata = u3d->dev->platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(u3d->dev); int retval; if (u3d->active) @@ -1138,7 +1138,7 @@ static int mv_u3d_enable(struct mv_u3d *u3d) static void mv_u3d_disable(struct mv_u3d *u3d) { - struct mv_usb_platform_data *pdata = u3d->dev->platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(u3d->dev); if (u3d->clock_gating && u3d->active) { dev_dbg(u3d->dev, "disable u3d\n"); if (pdata->phy_deinit) @@ -1246,7 +1246,7 @@ static int mv_u3d_start(struct usb_gadget *g, struct usb_gadget_driver *driver) { struct mv_u3d *u3d = container_of(g, struct mv_u3d, gadget); - struct mv_usb_platform_data *pdata = u3d->dev->platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(u3d->dev); unsigned long flags; if (u3d->driver) @@ -1277,7 +1277,7 @@ static int mv_u3d_stop(struct usb_gadget *g, struct usb_gadget_driver *driver) { struct mv_u3d *u3d = container_of(g, struct mv_u3d, gadget); - struct mv_usb_platform_data *pdata = u3d->dev->platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(u3d->dev); unsigned long flags; u3d->vbus_valid_detect = 0; @@ -1794,12 +1794,12 @@ static int mv_u3d_remove(struct platform_device *dev) static int mv_u3d_probe(struct platform_device *dev) { struct mv_u3d *u3d = NULL; - struct mv_usb_platform_data *pdata = dev->dev.platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(&dev->dev); int retval = 0; struct resource *r; size_t size; - if (!dev->dev.platform_data) { + if (!dev_get_platdata(&dev->dev)) { dev_err(&dev->dev, "missing platform_data\n"); retval = -ENODEV; goto err_pdata; diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index c2a57023e467..104cdbea635a 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -2100,7 +2100,7 @@ static int mv_udc_remove(struct platform_device *pdev) static int mv_udc_probe(struct platform_device *pdev) { - struct mv_usb_platform_data *pdata = pdev->dev.platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); struct mv_udc *udc; int retval = 0; struct resource *r; @@ -2118,7 +2118,7 @@ static int mv_udc_probe(struct platform_device *pdev) } udc->done = &release_done; - udc->pdata = pdev->dev.platform_data; + udc->pdata = dev_get_platdata(&pdev->dev); spin_lock_init(&udc->lock); udc->dev = pdev; diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c index f1e50a3e322d..bf2bb39f35a2 100644 --- a/drivers/usb/gadget/net2272.c +++ b/drivers/usb/gadget/net2272.c @@ -1184,7 +1184,7 @@ static const struct usb_gadget_ops net2272_ops = { /*---------------------------------------------------------------------------*/ static ssize_t -net2272_show_registers(struct device *_dev, struct device_attribute *attr, char *buf) +registers_show(struct device *_dev, struct device_attribute *attr, char *buf) { struct net2272 *dev; char *next; @@ -1308,7 +1308,7 @@ net2272_show_registers(struct device *_dev, struct device_attribute *attr, char return PAGE_SIZE - size; } -static DEVICE_ATTR(registers, S_IRUGO, net2272_show_registers, NULL); +static DEVICE_ATTR_RO(registers); /*---------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index fbd006ab31d3..0781bff70015 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -1424,8 +1424,8 @@ static const struct usb_gadget_ops net2280_ops = { */ /* "function" sysfs attribute */ -static ssize_t -show_function (struct device *_dev, struct device_attribute *attr, char *buf) +static ssize_t function_show(struct device *_dev, struct device_attribute *attr, + char *buf) { struct net2280 *dev = dev_get_drvdata (_dev); @@ -1435,10 +1435,10 @@ show_function (struct device *_dev, struct device_attribute *attr, char *buf) return 0; return scnprintf (buf, PAGE_SIZE, "%s\n", dev->driver->function); } -static DEVICE_ATTR (function, S_IRUGO, show_function, NULL); +static DEVICE_ATTR_RO(function); -static ssize_t net2280_show_registers(struct device *_dev, - struct device_attribute *attr, char *buf) +static ssize_t registers_show(struct device *_dev, + struct device_attribute *attr, char *buf) { struct net2280 *dev; char *next; @@ -1590,10 +1590,10 @@ static ssize_t net2280_show_registers(struct device *_dev, return PAGE_SIZE - size; } -static DEVICE_ATTR(registers, S_IRUGO, net2280_show_registers, NULL); +static DEVICE_ATTR_RO(registers); -static ssize_t -show_queues (struct device *_dev, struct device_attribute *attr, char *buf) +static ssize_t queues_show(struct device *_dev, struct device_attribute *attr, + char *buf) { struct net2280 *dev; char *next; @@ -1690,7 +1690,7 @@ done: spin_unlock_irqrestore (&dev->lock, flags); return PAGE_SIZE - size; } -static DEVICE_ATTR (queues, S_IRUGO, show_queues, NULL); +static DEVICE_ATTR_RO(queues); #else diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index b8ed74a823cb..83957cc225d9 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -2734,7 +2734,7 @@ static int omap_udc_probe(struct platform_device *pdev) int hmc; struct usb_phy *xceiv = NULL; const char *type = NULL; - struct omap_usb_config *config = pdev->dev.platform_data; + struct omap_usb_config *config = dev_get_platdata(&pdev->dev); struct clk *dc_clk = NULL; struct clk *hhc_clk = NULL; diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index 95c531d5aa4f..cc9207473dbc 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -2117,7 +2117,7 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev) /* other non-static parts of init */ dev->dev = &pdev->dev; - dev->mach = pdev->dev.platform_data; + dev->mach = dev_get_platdata(&pdev->dev); dev->transceiver = usb_get_phy(USB_PHY_TYPE_USB2); diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 41cea9566ac8..3c97da7760da 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -2422,7 +2422,7 @@ static int pxa_udc_probe(struct platform_device *pdev) return udc->irq; udc->dev = &pdev->dev; - udc->mach = pdev->dev.platform_data; + udc->mach = dev_get_platdata(&pdev->dev); udc->transceiver = usb_get_phy(USB_PHY_TYPE_USB2); gpio = udc->mach->gpio_pullup; diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index c6af649f3240..68be48d33404 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -1910,7 +1910,7 @@ static int __init r8a66597_probe(struct platform_device *pdev) spin_lock_init(&r8a66597->lock); platform_set_drvdata(pdev, r8a66597); - r8a66597->pdata = pdev->dev.platform_data; + r8a66597->pdata = dev_get_platdata(&pdev->dev); r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW; r8a66597->gadget.ops = &r8a66597_gadget_ops; diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index 3e3ea7203030..9575085ded81 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -1142,7 +1142,7 @@ static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS]; #endif /* CONFIG_USB_GADGET_DEBUG_FILES */ -int rndis_init(void) +static int rndis_init(void) { u8 i; @@ -1176,7 +1176,7 @@ int rndis_init(void) } module_init(rndis_init); -void rndis_exit(void) +static void rndis_exit(void) { #ifdef CONFIG_USB_GADGET_DEBUG_FILES u8 i; diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index af22f24046b2..d69b36a99dbc 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -29,6 +29,7 @@ #include <linux/slab.h> #include <linux/clk.h> #include <linux/regulator/consumer.h> +#include <linux/of_platform.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -3450,7 +3451,7 @@ static void s3c_hsotg_delete_debug(struct s3c_hsotg *hsotg) static int s3c_hsotg_probe(struct platform_device *pdev) { - struct s3c_hsotg_plat *plat = pdev->dev.platform_data; + struct s3c_hsotg_plat *plat = dev_get_platdata(&pdev->dev); struct usb_phy *phy; struct device *dev = &pdev->dev; struct s3c_hsotg_ep *eps; @@ -3469,7 +3470,7 @@ static int s3c_hsotg_probe(struct platform_device *pdev) phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); if (IS_ERR(phy)) { /* Fallback for pdata */ - plat = pdev->dev.platform_data; + plat = dev_get_platdata(&pdev->dev); if (!plat) { dev_err(&pdev->dev, "no platform data or transceiver defined\n"); return -EPROBE_DEFER; @@ -3648,10 +3649,19 @@ static int s3c_hsotg_remove(struct platform_device *pdev) #define s3c_hsotg_resume NULL #endif +#ifdef CONFIG_OF +static const struct of_device_id s3c_hsotg_of_ids[] = { + { .compatible = "samsung,s3c6400-hsotg", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, s3c_hsotg_of_ids); +#endif + static struct platform_driver s3c_hsotg_driver = { .driver = { .name = "s3c-hsotg", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(s3c_hsotg_of_ids), }, .probe = s3c_hsotg_probe, .remove = s3c_hsotg_remove, diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c index b1f0771fbd3d..1a1a41498db2 100644 --- a/drivers/usb/gadget/s3c-hsudc.c +++ b/drivers/usb/gadget/s3c-hsudc.c @@ -1262,7 +1262,7 @@ static int s3c_hsudc_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct resource *res; struct s3c_hsudc *hsudc; - struct s3c24xx_hsudc_platdata *pd = pdev->dev.platform_data; + struct s3c24xx_hsudc_platdata *pd = dev_get_platdata(&pdev->dev); int ret, i; hsudc = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsudc) + @@ -1275,7 +1275,7 @@ static int s3c_hsudc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dev); hsudc->dev = dev; - hsudc->pd = pdev->dev.platform_data; + hsudc->pd = dev_get_platdata(&pdev->dev); hsudc->transceiver = usb_get_phy(USB_PHY_TYPE_USB2); diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index 09c4f70c93c4..c72d810e6b36 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1809,7 +1809,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev) } spin_lock_init(&udc->lock); - udc_info = pdev->dev.platform_data; + udc_info = dev_get_platdata(&pdev->dev); rsrc_start = S3C2410_PA_USBDEV; rsrc_len = S3C24XX_SZ_USBDEV; diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c index dbce3a9074e6..08a1a3210a21 100644 --- a/drivers/usb/gadget/storage_common.c +++ b/drivers/usb/gadget/storage_common.c @@ -172,7 +172,7 @@ MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers"); */ #define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS -#endif /* CONFIG_USB_DEBUG */ +#endif /* CONFIG_USB_GADGET_DEBUG_FILES */ /* check if fsg_num_buffers is within a valid range */ static inline int fsg_num_buffers_validate(void) @@ -547,8 +547,8 @@ static void store_cdrom_address(u8 *dest, int msf, u32 addr) /*-------------------------------------------------------------------------*/ -static ssize_t fsg_show_ro(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t ro_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct fsg_lun *curlun = fsg_lun_from_dev(dev); @@ -557,16 +557,16 @@ static ssize_t fsg_show_ro(struct device *dev, struct device_attribute *attr, : curlun->initially_ro); } -static ssize_t fsg_show_nofua(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t nofua_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct fsg_lun *curlun = fsg_lun_from_dev(dev); return sprintf(buf, "%u\n", curlun->nofua); } -static ssize_t fsg_show_file(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t file_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct fsg_lun *curlun = fsg_lun_from_dev(dev); struct rw_semaphore *filesem = dev_get_drvdata(dev); @@ -593,8 +593,8 @@ static ssize_t fsg_show_file(struct device *dev, struct device_attribute *attr, } -static ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t ro_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { ssize_t rc; struct fsg_lun *curlun = fsg_lun_from_dev(dev); @@ -623,9 +623,8 @@ static ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr, return rc; } -static ssize_t fsg_store_nofua(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t nofua_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct fsg_lun *curlun = fsg_lun_from_dev(dev); unsigned nofua; @@ -644,8 +643,8 @@ static ssize_t fsg_store_nofua(struct device *dev, return count; } -static ssize_t fsg_store_file(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t file_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct fsg_lun *curlun = fsg_lun_from_dev(dev); struct rw_semaphore *filesem = dev_get_drvdata(dev); diff --git a/drivers/usb/gadget/u_uac1.c b/drivers/usb/gadget/u_uac1.c index c7d460f43390..7a55fea43430 100644 --- a/drivers/usb/gadget/u_uac1.c +++ b/drivers/usb/gadget/u_uac1.c @@ -191,7 +191,7 @@ try_again: frames = bytes_to_frames(runtime, count); old_fs = get_fs(); set_fs(KERNEL_DS); - result = snd_pcm_lib_write(snd->substream, buf, frames); + result = snd_pcm_lib_write(snd->substream, (void __user *)buf, frames); if (result != frames) { ERROR(card, "Playback error: %d\n", (int)result); set_fs(old_fs); diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 13e25f80fc20..59891b1c48fc 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -23,6 +23,7 @@ #include <linux/list.h> #include <linux/err.h> #include <linux/dma-mapping.h> +#include <linux/workqueue.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -105,11 +106,18 @@ EXPORT_SYMBOL_GPL(usb_gadget_unmap_request); /* ------------------------------------------------------------------------- */ +static void usb_gadget_state_work(struct work_struct *work) +{ + struct usb_gadget *gadget = work_to_gadget(work); + + sysfs_notify(&gadget->dev.kobj, NULL, "state"); +} + void usb_gadget_set_state(struct usb_gadget *gadget, enum usb_device_state state) { gadget->state = state; - sysfs_notify(&gadget->dev.kobj, NULL, "state"); + schedule_work(&gadget->work); } EXPORT_SYMBOL_GPL(usb_gadget_set_state); @@ -196,6 +204,7 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget, goto err1; dev_set_name(&gadget->dev, "gadget"); + INIT_WORK(&gadget->work, usb_gadget_state_work); gadget->dev.parent = parent; #ifdef CONFIG_HAS_DMA @@ -315,6 +324,7 @@ found: usb_gadget_remove_driver(udc); kobject_uevent(&udc->dev.kobj, KOBJ_REMOVE); + flush_work(&gadget->work); device_unregister(&udc->dev); device_unregister(&gadget->dev); } @@ -460,31 +470,31 @@ static ssize_t usb_udc_softconn_store(struct device *dev, } static DEVICE_ATTR(soft_connect, S_IWUSR, NULL, usb_udc_softconn_store); -static ssize_t usb_gadget_state_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t state_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct usb_udc *udc = container_of(dev, struct usb_udc, dev); struct usb_gadget *gadget = udc->gadget; return sprintf(buf, "%s\n", usb_state_string(gadget->state)); } -static DEVICE_ATTR(state, S_IRUGO, usb_gadget_state_show, NULL); +static DEVICE_ATTR_RO(state); #define USB_UDC_SPEED_ATTR(name, param) \ -ssize_t usb_udc_##param##_show(struct device *dev, \ +ssize_t name##_show(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct usb_udc *udc = container_of(dev, struct usb_udc, dev); \ return snprintf(buf, PAGE_SIZE, "%s\n", \ usb_speed_string(udc->gadget->param)); \ } \ -static DEVICE_ATTR(name, S_IRUGO, usb_udc_##param##_show, NULL) +static DEVICE_ATTR_RO(name) static USB_UDC_SPEED_ATTR(current_speed, speed); static USB_UDC_SPEED_ATTR(maximum_speed, max_speed); #define USB_UDC_ATTR(name) \ -ssize_t usb_udc_##name##_show(struct device *dev, \ +ssize_t name##_show(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ struct usb_udc *udc = container_of(dev, struct usb_udc, dev); \ @@ -492,7 +502,7 @@ ssize_t usb_udc_##name##_show(struct device *dev, \ \ return snprintf(buf, PAGE_SIZE, "%d\n", gadget->name); \ } \ -static DEVICE_ATTR(name, S_IRUGO, usb_udc_##name##_show, NULL) +static DEVICE_ATTR_RO(name) static USB_UDC_ATTR(is_otg); static USB_UDC_ATTR(is_a_peripheral); diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index e6170478ea9f..0bb5d50075de 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -193,12 +193,16 @@ static int uvc_queue_buffer(struct uvc_video_queue *queue, mutex_lock(&queue->mutex); ret = vb2_qbuf(&queue->queue, buf); + if (ret < 0) + goto done; + spin_lock_irqsave(&queue->irqlock, flags); ret = (queue->flags & UVC_QUEUE_PAUSED) != 0; queue->flags &= ~UVC_QUEUE_PAUSED; spin_unlock_irqrestore(&queue->irqlock, flags); - mutex_unlock(&queue->mutex); +done: + mutex_unlock(&queue->mutex); return ret; } diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 4263d011392c..5be0326aae38 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -29,15 +29,6 @@ if USB_XHCI_HCD config USB_XHCI_PLATFORM tristate -config USB_XHCI_HCD_DEBUGGING - bool "Debugging for the xHCI host controller" - ---help--- - Say 'Y' to turn on debugging for the xHCI host controller driver. - This will spew debugging output, even in interrupt context. - This should only be used for debugging xHCI driver bugs. - - If unsure, say N. - endif # USB_XHCI_HCD config USB_EHCI_HCD @@ -113,12 +104,6 @@ config USB_EHCI_HCD_PMC_MSP Enables support for the onchip USB controller on the PMC_MSP7100 Family SoC's. If unsure, say N. -config USB_EHCI_BIG_ENDIAN_MMIO - bool - -config USB_EHCI_BIG_ENDIAN_DESC - bool - config XPS_USB_HCD_XILINX bool "Use Xilinx usb host EHCI controller core" depends on (PPC32 || MICROBLAZE) @@ -148,13 +133,11 @@ config USB_EHCI_MXC config USB_EHCI_HCD_OMAP tristate "EHCI support for OMAP3 and later chips" depends on ARCH_OMAP + select NOP_USB_XCEIV default y ---help--- Enables support for the on-chip EHCI controller on OMAP3 and later chips. - If your system uses a PHY on the USB port, you will need to - enable USB_PHY and the appropriate PHY driver as well. Most - boards need the NOP_USB_XCEIV PHY driver. config USB_EHCI_HCD_ORION tristate "Support for Marvell EBU on-chip EHCI USB controller" @@ -186,7 +169,6 @@ config USB_EHCI_HCD_AT91 config USB_EHCI_MSM tristate "Support for Qualcomm QSD/MSM on-chip EHCI USB controller" depends on ARCH_MSM - depends on USB_PHY select USB_EHCI_ROOT_HUB_TT select USB_MSM_OTG ---help--- @@ -354,6 +336,18 @@ config USB_FUSBH200_HCD To compile this driver as a module, choose M here: the module will be called fusbh200-hcd. +config USB_FOTG210_HCD + tristate "FOTG210 HCD support" + depends on USB + default N + ---help--- + Faraday FOTG210 is an OTG controller which can be configured as + an USB2.0 host. It is designed to meet USB2.0 EHCI specification + with minor modification. + + To compile this driver as a module, choose M here: the + module will be called fotg210-hcd. + config USB_OHCI_HCD tristate "OHCI HCD (USB 1.1) support" select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 @@ -497,20 +491,6 @@ config USB_OCTEON_OHCI controller. It is needed for low-speed USB 1.0 device support. All CN6XXX based chips with USB are supported. - -config USB_OHCI_BIG_ENDIAN_DESC - bool - default n - -config USB_OHCI_BIG_ENDIAN_MMIO - bool - default n - -config USB_OHCI_LITTLE_ENDIAN - bool - default n if STB03xxx || PPC_MPC52xx - default y - endif # USB_OHCI_HCD config USB_UHCI_HCD @@ -710,3 +690,20 @@ config USB_HCD_SSB for ehci and ohci. If unsure, say N. + +config USB_HCD_TEST_MODE + bool "HCD test mode support" + ---help--- + Say 'Y' to enable additional software test modes that may be + supported by the host controller drivers. + + One such test mode is the Embedded High-speed Host Electrical Test + (EHSET) for EHCI host controller hardware, specifically the "Single + Step Set Feature" test. Typically this will be enabled for On-the-Go + or embedded hosts that need to undergo USB-IF compliance testing with + the aid of special testing hardware. In the future, this may expand + to include other tests that require support from a HCD driver. + + This option is of interest only to developers who need to validate + their USB hardware designs. It is not needed for normal use. If + unsure, say N. diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index bea71127b15f..50b0041c09a9 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -4,6 +4,9 @@ ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG +# tell define_trace.h where to find the xhci trace header +CFLAGS_xhci-trace.o := -I$(src) + isp1760-y := isp1760-hcd.o isp1760-if.o fhci-y := fhci-hcd.o fhci-hub.o fhci-q.o @@ -13,6 +16,7 @@ fhci-$(CONFIG_FHCI_DEBUG) += fhci-dbg.o xhci-hcd-y := xhci.o xhci-mem.o xhci-hcd-y += xhci-ring.o xhci-hub.o xhci-dbg.o +xhci-hcd-y += xhci-trace.o xhci-hcd-$(CONFIG_PCI) += xhci-pci.o ifneq ($(CONFIG_USB_XHCI_PLATFORM), ) @@ -58,3 +62,4 @@ obj-$(CONFIG_USB_OCTEON2_COMMON) += octeon2-common.o obj-$(CONFIG_USB_HCD_BCMA) += bcma-hcd.o obj-$(CONFIG_USB_HCD_SSB) += ssb-hcd.o obj-$(CONFIG_USB_FUSBH200_HCD) += fusbh200-hcd.o +obj-$(CONFIG_USB_FOTG210_HCD) += fotg210-hcd.o diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 5429d2645bbc..aa5b603f3933 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -18,7 +18,7 @@ /* this file is part of ehci-hcd.c */ -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) /* check the values in the HCSPARAMS register * (host controller _Structural_ parameters) @@ -62,7 +62,7 @@ static inline void dbg_hcs_params (struct ehci_hcd *ehci, char *label) {} #endif -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) /* check the values in the HCCPARAMS register * (host controller _Capability_ parameters) @@ -101,7 +101,7 @@ static inline void dbg_hcc_params (struct ehci_hcd *ehci, char *label) {} #endif -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) static void __maybe_unused dbg_qtd (const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd) @@ -301,7 +301,7 @@ static inline int __maybe_unused dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) { return 0; } -#endif /* DEBUG */ +#endif /* DEBUG || CONFIG_DYNAMIC_DEBUG */ /* functions have the "wrong" filename when they're output... */ #define dbg_status(ehci, label, status) { \ @@ -336,7 +336,6 @@ static inline void remove_debug_files (struct ehci_hcd *bus) { } static int debug_async_open(struct inode *, struct file *); static int debug_periodic_open(struct inode *, struct file *); static int debug_registers_open(struct inode *, struct file *); -static int debug_async_open(struct inode *, struct file *); static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*); static int debug_close(struct inode *, struct file *); diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index bd831ec06dcd..947b009009f1 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -57,7 +57,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, pr_debug("initializing FSL-SOC USB Controller\n"); /* Need platform data for setup */ - pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data; + pdata = (struct fsl_usb2_platform_data *)dev_get_platdata(&pdev->dev); if (!pdata) { dev_err(&pdev->dev, "No platform data for %s.\n", dev_name(&pdev->dev)); @@ -190,7 +190,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, static void usb_hcd_fsl_remove(struct usb_hcd *hcd, struct platform_device *pdev) { - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); if (!IS_ERR_OR_NULL(hcd->phy)) { otg_set_host(hcd->phy->otg, NULL); @@ -218,7 +218,7 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd, struct ehci_hcd *ehci = hcd_to_ehci(hcd); void __iomem *non_ehci = hcd->regs; struct device *dev = hcd->self.controller; - struct fsl_usb2_platform_data *pdata = dev->platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(dev); if (pdata->controller_ver < 0) { dev_warn(hcd->self.controller, "Could not get controller version\n"); @@ -291,7 +291,7 @@ static int ehci_fsl_usb_setup(struct ehci_hcd *ehci) struct fsl_usb2_platform_data *pdata; void __iomem *non_ehci = hcd->regs; - pdata = hcd->self.controller->platform_data; + pdata = dev_get_platdata(hcd->self.controller); if (pdata->have_sysif_regs) { /* @@ -363,7 +363,7 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) struct device *dev; dev = hcd->self.controller; - pdata = hcd->self.controller->platform_data; + pdata = dev_get_platdata(hcd->self.controller); ehci->big_endian_desc = pdata->big_endian_desc; ehci->big_endian_mmio = pdata->big_endian_mmio; @@ -415,10 +415,10 @@ static int ehci_fsl_mpc512x_drv_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); struct ehci_hcd *ehci = hcd_to_ehci(hcd); - struct fsl_usb2_platform_data *pdata = dev->platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(dev); u32 tmp; -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) u32 mode = ehci_readl(ehci, hcd->regs + FSL_SOC_USB_USBMODE); mode &= USBMODE_CM_MASK; tmp = ehci_readl(ehci, hcd->regs + 0x140); /* usbcmd */ @@ -484,7 +484,7 @@ static int ehci_fsl_mpc512x_drv_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); struct ehci_hcd *ehci = hcd_to_ehci(hcd); - struct fsl_usb2_platform_data *pdata = dev->platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(dev); u32 tmp; dev_dbg(dev, "suspend=%d already_suspended=%d\n", @@ -669,7 +669,7 @@ static const struct hc_driver ehci_fsl_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY, + .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index a77bd8dc33f4..b52a66ce92e8 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -43,7 +43,7 @@ static const struct hc_driver ehci_grlib_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations @@ -167,15 +167,6 @@ static int ehci_hcd_grlib_remove(struct platform_device *op) } -static void ehci_hcd_grlib_shutdown(struct platform_device *op) -{ - struct usb_hcd *hcd = platform_get_drvdata(op); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - - static const struct of_device_id ehci_hcd_grlib_of_match[] = { { .name = "GAISLER_EHCI", @@ -191,7 +182,7 @@ MODULE_DEVICE_TABLE(of, ehci_hcd_grlib_of_match); static struct platform_driver ehci_grlib_driver = { .probe = ehci_hcd_grlib_probe, .remove = ehci_hcd_grlib_remove, - .shutdown = ehci_hcd_grlib_shutdown, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "grlib-ehci", .owner = THIS_MODULE, diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 7abf1ce3a670..5d6022f30ebe 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -440,14 +440,6 @@ static void ehci_stop (struct usb_hcd *hcd) if (ehci->amd_pll_fix == 1) usb_amd_dev_put(); -#ifdef EHCI_STATS - ehci_dbg(ehci, "irq normal %ld err %ld iaa %ld (lost %ld)\n", - ehci->stats.normal, ehci->stats.error, ehci->stats.iaa, - ehci->stats.lost_iaa); - ehci_dbg (ehci, "complete %ld unlink %ld\n", - ehci->stats.complete, ehci->stats.unlink); -#endif - dbg_status (ehci, "ehci_stop completed", ehci_readl(ehci, &ehci->regs->status)); } @@ -487,6 +479,7 @@ static int ehci_init(struct usb_hcd *hcd) ehci->periodic_size = DEFAULT_I_TDPS; INIT_LIST_HEAD(&ehci->async_unlink); INIT_LIST_HEAD(&ehci->async_idle); + INIT_LIST_HEAD(&ehci->intr_unlink_wait); INIT_LIST_HEAD(&ehci->intr_unlink); INIT_LIST_HEAD(&ehci->intr_qh_list); INIT_LIST_HEAD(&ehci->cached_itd_list); @@ -942,7 +935,7 @@ ehci_endpoint_disable (struct usb_hcd *hcd, struct usb_host_endpoint *ep) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); unsigned long flags; - struct ehci_qh *qh, *tmp; + struct ehci_qh *qh; /* ASSERT: any requests/urbs are being unlinked */ /* ASSERT: nobody can be submitting urbs for this any more */ @@ -972,17 +965,13 @@ rescan: qh->qh_state = QH_STATE_IDLE; switch (qh->qh_state) { case QH_STATE_LINKED: - case QH_STATE_COMPLETING: - for (tmp = ehci->async->qh_next.qh; - tmp && tmp != qh; - tmp = tmp->qh_next.qh) - continue; - /* periodic qh self-unlinks on empty, and a COMPLETING qh - * may already be unlinked. - */ - if (tmp) + WARN_ON(!list_empty(&qh->qtd_list)); + if (usb_endpoint_type(&ep->desc) != USB_ENDPOINT_XFER_INT) start_unlink_async(ehci, qh); + else + start_unlink_intr(ehci, qh); /* FALL THROUGH */ + case QH_STATE_COMPLETING: /* already in unlinking */ case QH_STATE_UNLINK: /* wait for hw to finish? */ case QH_STATE_UNLINK_WAIT: idle_timeout: @@ -1169,7 +1158,7 @@ static const struct hc_driver ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations @@ -1303,7 +1292,7 @@ static int __init ehci_hcd_init(void) sizeof(struct ehci_qh), sizeof(struct ehci_qtd), sizeof(struct ehci_itd), sizeof(struct ehci_sitd)); -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) ehci_debug_root = debugfs_create_dir("ehci", usb_debug_root); if (!ehci_debug_root) { retval = -ENOENT; @@ -1352,7 +1341,7 @@ clean2: platform_driver_unregister(&PLATFORM_DRIVER); clean0: #endif -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) debugfs_remove(ehci_debug_root); ehci_debug_root = NULL; err_debug: @@ -1376,7 +1365,7 @@ static void __exit ehci_hcd_cleanup(void) #ifdef PS3_SYSTEM_BUS_DRIVER ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); #endif -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) debugfs_remove(ehci_debug_root); #endif clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 6dce37555c4f..835fc0844a66 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -183,7 +183,7 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, spin_lock_irq(&ehci->lock); /* clear phy low-power mode before changing wakeup flags */ - if (ehci->has_hostpc) { + if (ehci->has_tdi_phy_lpm) { port = HCS_N_PORTS(ehci->hcs_params); while (port--) { u32 __iomem *hostpc_reg = &ehci->regs->hostpc[port]; @@ -211,13 +211,11 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, else t2 |= PORT_WKOC_E | PORT_WKCONN_E; } - ehci_vdbg(ehci, "port %d, %08x -> %08x\n", - port + 1, t1, t2); ehci_writel(ehci, t2, reg); } /* enter phy low-power mode again */ - if (ehci->has_hostpc) { + if (ehci->has_tdi_phy_lpm) { port = HCS_N_PORTS(ehci->hcs_params); while (port--) { u32 __iomem *hostpc_reg = &ehci->regs->hostpc[port]; @@ -302,14 +300,12 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) } if (t1 != t2) { - ehci_vdbg (ehci, "port %d, %08x -> %08x\n", - port + 1, t1, t2); ehci_writel(ehci, t2, reg); changed = 1; } } - if (changed && ehci->has_hostpc) { + if (changed && ehci->has_tdi_phy_lpm) { spin_unlock_irq(&ehci->lock); msleep(5); /* 5 ms for HCD to enter low-power mode */ spin_lock_irq(&ehci->lock); @@ -345,6 +341,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) end_unlink_async(ehci); unlink_empty_async_suspended(ehci); + ehci_handle_start_intr_unlinks(ehci); ehci_handle_intr_unlinks(ehci); end_free_itds(ehci); @@ -435,7 +432,7 @@ static int ehci_bus_resume (struct usb_hcd *hcd) goto shutdown; /* clear phy low-power mode before resume */ - if (ehci->bus_suspended && ehci->has_hostpc) { + if (ehci->bus_suspended && ehci->has_tdi_phy_lpm) { i = HCS_N_PORTS(ehci->hcs_params); while (i--) { if (test_bit(i, &ehci->bus_suspended)) { @@ -482,7 +479,6 @@ static int ehci_bus_resume (struct usb_hcd *hcd) if (test_bit(i, &resume_needed)) { temp &= ~(PORT_RWC_BITS | PORT_SUSPEND | PORT_RESUME); ehci_writel(ehci, temp, &ehci->regs->port_status [i]); - ehci_vdbg (ehci, "resumed port %d\n", i + 1); } } @@ -711,6 +707,145 @@ ehci_hub_descriptor ( } /*-------------------------------------------------------------------------*/ +#ifdef CONFIG_USB_HCD_TEST_MODE + +#define EHSET_TEST_SINGLE_STEP_SET_FEATURE 0x06 + +static void usb_ehset_completion(struct urb *urb) +{ + struct completion *done = urb->context; + + complete(done); +} +static int submit_single_step_set_feature( + struct usb_hcd *hcd, + struct urb *urb, + int is_setup +); + +/* + * Allocate and initialize a control URB. This request will be used by the + * EHSET SINGLE_STEP_SET_FEATURE test in which the DATA and STATUS stages + * of the GetDescriptor request are sent 15 seconds after the SETUP stage. + * Return NULL if failed. + */ +static struct urb *request_single_step_set_feature_urb( + struct usb_device *udev, + void *dr, + void *buf, + struct completion *done +) { + struct urb *urb; + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + struct usb_host_endpoint *ep; + + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) + return NULL; + + urb->pipe = usb_rcvctrlpipe(udev, 0); + ep = (usb_pipein(urb->pipe) ? udev->ep_in : udev->ep_out) + [usb_pipeendpoint(urb->pipe)]; + if (!ep) { + usb_free_urb(urb); + return NULL; + } + + urb->ep = ep; + urb->dev = udev; + urb->setup_packet = (void *)dr; + urb->transfer_buffer = buf; + urb->transfer_buffer_length = USB_DT_DEVICE_SIZE; + urb->complete = usb_ehset_completion; + urb->status = -EINPROGRESS; + urb->actual_length = 0; + urb->transfer_flags = URB_DIR_IN; + usb_get_urb(urb); + atomic_inc(&urb->use_count); + atomic_inc(&urb->dev->urbnum); + urb->setup_dma = dma_map_single( + hcd->self.controller, + urb->setup_packet, + sizeof(struct usb_ctrlrequest), + DMA_TO_DEVICE); + urb->transfer_dma = dma_map_single( + hcd->self.controller, + urb->transfer_buffer, + urb->transfer_buffer_length, + DMA_FROM_DEVICE); + urb->context = done; + return urb; +} + +static int ehset_single_step_set_feature(struct usb_hcd *hcd, int port) +{ + int retval = -ENOMEM; + struct usb_ctrlrequest *dr; + struct urb *urb; + struct usb_device *udev; + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct usb_device_descriptor *buf; + DECLARE_COMPLETION_ONSTACK(done); + + /* Obtain udev of the rhub's child port */ + udev = usb_hub_find_child(hcd->self.root_hub, port); + if (!udev) { + ehci_err(ehci, "No device attached to the RootHub\n"); + return -ENODEV; + } + buf = kmalloc(USB_DT_DEVICE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL); + if (!dr) { + kfree(buf); + return -ENOMEM; + } + + /* Fill Setup packet for GetDescriptor */ + dr->bRequestType = USB_DIR_IN; + dr->bRequest = USB_REQ_GET_DESCRIPTOR; + dr->wValue = cpu_to_le16(USB_DT_DEVICE << 8); + dr->wIndex = 0; + dr->wLength = cpu_to_le16(USB_DT_DEVICE_SIZE); + urb = request_single_step_set_feature_urb(udev, dr, buf, &done); + if (!urb) + goto cleanup; + + /* Submit just the SETUP stage */ + retval = submit_single_step_set_feature(hcd, urb, 1); + if (retval) + goto out1; + if (!wait_for_completion_timeout(&done, msecs_to_jiffies(2000))) { + usb_kill_urb(urb); + retval = -ETIMEDOUT; + ehci_err(ehci, "%s SETUP stage timed out on ep0\n", __func__); + goto out1; + } + msleep(15 * 1000); + + /* Complete remaining DATA and STATUS stages using the same URB */ + urb->status = -EINPROGRESS; + usb_get_urb(urb); + atomic_inc(&urb->use_count); + atomic_inc(&urb->dev->urbnum); + retval = submit_single_step_set_feature(hcd, urb, 0); + if (!retval && !wait_for_completion_timeout(&done, + msecs_to_jiffies(2000))) { + usb_kill_urb(urb); + retval = -ETIMEDOUT; + ehci_err(ehci, "%s IN stage timed out on ep0\n", __func__); + } +out1: + usb_free_urb(urb); +cleanup: + kfree(dr); + kfree(buf); + return retval; +} +#endif /* CONFIG_USB_HCD_TEST_MODE */ +/*-------------------------------------------------------------------------*/ static int ehci_hub_control ( struct usb_hcd *hcd, @@ -788,7 +923,7 @@ static int ehci_hub_control ( goto error; /* clear phy low-power mode before resume */ - if (ehci->has_hostpc) { + if (ehci->has_tdi_phy_lpm) { temp1 = ehci_readl(ehci, hostpc_reg); ehci_writel(ehci, temp1 & ~HOSTPC_PHCD, hostpc_reg); @@ -801,6 +936,8 @@ static int ehci_hub_control ( ehci_writel(ehci, temp | PORT_RESUME, status_reg); ehci->reset_done[wIndex] = jiffies + msecs_to_jiffies(20); + set_bit(wIndex, &ehci->resuming_ports); + usb_hcd_start_port_resume(&hcd->self, wIndex); break; case USB_PORT_FEAT_C_SUSPEND: clear_bit(wIndex, &ehci->port_c_suspend); @@ -865,11 +1002,11 @@ static int ehci_hub_control ( } } - /* whoever resumes must GetPortStatus to complete it!! */ - if (temp & PORT_RESUME) { + /* no reset or resume pending */ + if (!ehci->reset_done[wIndex]) { /* Remote Wakeup received? */ - if (!ehci->reset_done[wIndex]) { + if (temp & PORT_RESUME) { /* resume signaling for 20 msec */ ehci->reset_done[wIndex] = jiffies + msecs_to_jiffies(20); @@ -880,38 +1017,34 @@ static int ehci_hub_control ( ehci->reset_done[wIndex]); } - /* resume completed? */ - else if (time_after_eq(jiffies, - ehci->reset_done[wIndex])) { - clear_bit(wIndex, &ehci->suspended_ports); - set_bit(wIndex, &ehci->port_c_suspend); - ehci->reset_done[wIndex] = 0; - usb_hcd_end_port_resume(&hcd->self, wIndex); - - /* stop resume signaling */ - temp &= ~(PORT_RWC_BITS | - PORT_SUSPEND | PORT_RESUME); - ehci_writel(ehci, temp, status_reg); - clear_bit(wIndex, &ehci->resuming_ports); - retval = ehci_handshake(ehci, status_reg, - PORT_RESUME, 0, 2000 /* 2msec */); - if (retval != 0) { - ehci_err(ehci, - "port %d resume error %d\n", + /* reset or resume not yet complete */ + } else if (!time_after_eq(jiffies, ehci->reset_done[wIndex])) { + ; /* wait until it is complete */ + + /* resume completed */ + } else if (test_bit(wIndex, &ehci->resuming_ports)) { + clear_bit(wIndex, &ehci->suspended_ports); + set_bit(wIndex, &ehci->port_c_suspend); + ehci->reset_done[wIndex] = 0; + usb_hcd_end_port_resume(&hcd->self, wIndex); + + /* stop resume signaling */ + temp &= ~(PORT_RWC_BITS | PORT_SUSPEND | PORT_RESUME); + ehci_writel(ehci, temp, status_reg); + clear_bit(wIndex, &ehci->resuming_ports); + retval = ehci_handshake(ehci, status_reg, + PORT_RESUME, 0, 2000 /* 2msec */); + if (retval != 0) { + ehci_err(ehci, "port %d resume error %d\n", wIndex + 1, retval); - goto error; - } - temp = ehci_readl(ehci, status_reg); + goto error; } - } + temp = ehci_readl(ehci, status_reg); /* whoever resets must GetPortStatus to complete it!! */ - if ((temp & PORT_RESET) - && time_after_eq(jiffies, - ehci->reset_done[wIndex])) { + } else { status |= USB_PORT_STAT_C_RESET << 16; ehci->reset_done [wIndex] = 0; - clear_bit(wIndex, &ehci->resuming_ports); /* force reset to complete */ ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_RESET), @@ -932,11 +1065,6 @@ static int ehci_hub_control ( ehci_readl(ehci, status_reg)); } - if (!(temp & (PORT_RESUME|PORT_RESET))) { - ehci->reset_done[wIndex] = 0; - clear_bit(wIndex, &ehci->resuming_ports); - } - /* transfer dedicated ports to the companion hc */ if ((temp & PORT_CONNECT) && test_bit(wIndex, &ehci->companion_ports)) { @@ -1032,12 +1160,12 @@ static int ehci_hub_control ( /* After above check the port must be connected. * Set appropriate bit thus could put phy into low power - * mode if we have hostpc feature + * mode if we have tdi_phy_lpm feature */ temp &= ~PORT_WKCONN_E; temp |= PORT_WKDISC_E | PORT_WKOC_E; ehci_writel(ehci, temp | PORT_SUSPEND, status_reg); - if (ehci->has_hostpc) { + if (ehci->has_tdi_phy_lpm) { spin_unlock_irqrestore(&ehci->lock, flags); msleep(5);/* 5ms for HCD enter low pwr mode */ spin_lock_irqsave(&ehci->lock, flags); @@ -1057,7 +1185,7 @@ static int ehci_hub_control ( status_reg); break; case USB_PORT_FEAT_RESET: - if (temp & PORT_RESUME) + if (temp & (PORT_SUSPEND|PORT_RESUME)) goto error; /* line status bits may report this as low speed, * which can be fine if this root hub has a @@ -1071,7 +1199,6 @@ static int ehci_hub_control ( wIndex + 1); temp |= PORT_OWNER; } else { - ehci_vdbg (ehci, "port %d reset\n", wIndex + 1); temp |= PORT_RESET; temp &= ~PORT_PE; @@ -1092,6 +1219,15 @@ static int ehci_hub_control ( * about the EHCI-specific stuff. */ case USB_PORT_FEAT_TEST: +#ifdef CONFIG_USB_HCD_TEST_MODE + if (selector == EHSET_TEST_SINGLE_STEP_SET_FEATURE) { + spin_unlock_irqrestore(&ehci->lock, flags); + retval = ehset_single_step_set_feature(hcd, + wIndex); + spin_lock_irqsave(&ehci->lock, flags); + break; + } +#endif if (!selector || selector > 5) goto error; spin_unlock_irqrestore(&ehci->lock, flags); diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index ef2c3a1eca4b..52a77734a225 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c @@ -93,6 +93,7 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags) qh->qh_dma = dma; // INIT_LIST_HEAD (&qh->qh_list); INIT_LIST_HEAD (&qh->qtd_list); + INIT_LIST_HEAD(&qh->unlink_node); /* dummy td enables safe urb queuing */ qh->dummy = ehci_qtd_alloc (ehci, flags); diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 915c2db96dce..417c10da9450 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -96,7 +96,7 @@ static const struct hc_driver mv_ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations @@ -131,7 +131,7 @@ static const struct hc_driver mv_ehci_hc_driver = { static int mv_ehci_probe(struct platform_device *pdev) { - struct mv_usb_platform_data *pdata = pdev->dev.platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); struct usb_hcd *hcd; struct ehci_hcd *ehci; struct ehci_hcd_mv *ehci_mv; diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index e4c34ac386c0..0528dc4526c8 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -49,7 +49,7 @@ static const struct ehci_driver_overrides ehci_mxc_overrides __initconst = { static int ehci_mxc_drv_probe(struct platform_device *pdev) { - struct mxc_usbh_platform_data *pdata = pdev->dev.platform_data; + struct mxc_usbh_platform_data *pdata = dev_get_platdata(&pdev->dev); struct usb_hcd *hcd; struct resource *res; int irq, ret; @@ -174,7 +174,7 @@ err_alloc: static int ehci_mxc_drv_remove(struct platform_device *pdev) { - struct mxc_usbh_platform_data *pdata = pdev->dev.platform_data; + struct mxc_usbh_platform_data *pdata = dev_get_platdata(&pdev->dev); struct usb_hcd *hcd = platform_get_drvdata(pdev); struct ehci_hcd *ehci = hcd_to_ehci(hcd); struct ehci_mxc_priv *priv = (struct ehci_mxc_priv *) ehci->priv; @@ -184,7 +184,7 @@ static int ehci_mxc_drv_remove(struct platform_device *pdev) if (pdata && pdata->exit) pdata->exit(pdev); - if (pdata->otg) + if (pdata && pdata->otg) usb_phy_shutdown(pdata->otg); clk_disable_unprepare(priv->usbclk); @@ -197,20 +197,12 @@ static int ehci_mxc_drv_remove(struct platform_device *pdev) return 0; } -static void ehci_mxc_drv_shutdown(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - MODULE_ALIAS("platform:mxc-ehci"); static struct platform_driver ehci_mxc_driver = { .probe = ehci_mxc_drv_probe, .remove = ehci_mxc_drv_remove, - .shutdown = ehci_mxc_drv_shutdown, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "mxc-ehci", }, diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c index 45cc00158412..ab0397e4d8f3 100644 --- a/drivers/usb/host/ehci-octeon.c +++ b/drivers/usb/host/ehci-octeon.c @@ -51,7 +51,7 @@ static const struct hc_driver ehci_octeon_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 9bd7dfe3315b..78b01fa475bb 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -100,7 +100,7 @@ static const struct ehci_driver_overrides ehci_omap_overrides __initdata = { static int ehci_hcd_omap_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct usbhs_omap_platform_data *pdata = dev->platform_data; + struct usbhs_omap_platform_data *pdata = dev_get_platdata(dev); struct resource *res; struct usb_hcd *hcd; void __iomem *regs; @@ -119,7 +119,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) /* For DT boot, get platform data from parent. i.e. usbhshost */ if (dev->of_node) { - pdata = dev->parent->platform_data; + pdata = dev_get_platdata(dev->parent); dev->platform_data = pdata; } @@ -278,14 +278,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) return 0; } -static void ehci_hcd_omap_shutdown(struct platform_device *pdev) -{ - struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - static const struct of_device_id omap_ehci_dt_ids[] = { { .compatible = "ti,ehci-omap" }, { } @@ -296,7 +288,7 @@ MODULE_DEVICE_TABLE(of, omap_ehci_dt_ids); static struct platform_driver ehci_hcd_omap_driver = { .probe = ehci_hcd_omap_probe, .remove = ehci_hcd_omap_remove, - .shutdown = ehci_hcd_omap_shutdown, + .shutdown = usb_hcd_platform_shutdown, /*.suspend = ehci_hcd_omap_suspend, */ /*.resume = ehci_hcd_omap_resume, */ .driver = { diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 1a450aa13ebf..d1dfb9db5b42 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -139,7 +139,7 @@ ehci_orion_conf_mbus_windows(struct usb_hcd *hcd, static int ehci_orion_drv_probe(struct platform_device *pdev) { - struct orion_ehci_data *pd = pdev->dev.platform_data; + struct orion_ehci_data *pd = dev_get_platdata(&pdev->dev); const struct mbus_dram_target_info *dram; struct resource *res; struct usb_hcd *hcd; diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 595d210655b6..6bd299e61f58 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -315,53 +315,11 @@ done: * Also they depend on separate root hub suspend/resume. */ -static bool usb_is_intel_switchable_ehci(struct pci_dev *pdev) -{ - return pdev->class == PCI_CLASS_SERIAL_USB_EHCI && - pdev->vendor == PCI_VENDOR_ID_INTEL && - (pdev->device == 0x1E26 || - pdev->device == 0x8C2D || - pdev->device == 0x8C26 || - pdev->device == 0x9C26); -} - -static void ehci_enable_xhci_companion(void) -{ - struct pci_dev *companion = NULL; - - /* The xHCI and EHCI controllers are not on the same PCI slot */ - for_each_pci_dev(companion) { - if (!usb_is_intel_switchable_xhci(companion)) - continue; - usb_enable_xhci_ports(companion); - return; - } -} - static int ehci_pci_resume(struct usb_hcd *hcd, bool hibernated) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); struct pci_dev *pdev = to_pci_dev(hcd->self.controller); - /* The BIOS on systems with the Intel Panther Point chipset may or may - * not support xHCI natively. That means that during system resume, it - * may switch the ports back to EHCI so that users can use their - * keyboard to select a kernel from GRUB after resume from hibernate. - * - * The BIOS is supposed to remember whether the OS had xHCI ports - * enabled before resume, and switch the ports back to xHCI when the - * BIOS/OS semaphore is written, but we all know we can't trust BIOS - * writers. - * - * Unconditionally switch the ports back to xHCI after a system resume. - * We can't tell whether the EHCI or xHCI controller will be resumed - * first, so we have to do the port switchover in both drivers. Writing - * a '1' to the port switchover registers should have no effect if the - * port was already switched over. - */ - if (usb_is_intel_switchable_ehci(pdev)) - ehci_enable_xhci_companion(); - if (ehci_resume(hcd, hibernated) != 0) (void) ehci_pci_reinit(ehci, pdev); return 0; diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 5196d728517d..f6b790ca8cf2 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -39,7 +39,7 @@ static const char hcd_name[] = "ehci-platform"; static int ehci_platform_reset(struct usb_hcd *hcd) { struct platform_device *pdev = to_platform_device(hcd->self.controller); - struct usb_ehci_pdata *pdata = pdev->dev.platform_data; + struct usb_ehci_pdata *pdata = dev_get_platdata(&pdev->dev); struct ehci_hcd *ehci = hcd_to_ehci(hcd); int retval; @@ -87,14 +87,14 @@ static int ehci_platform_probe(struct platform_device *dev) * use reasonable defaults so platforms don't have to provide these. * with DT probing on ARM, none of these are set. */ - if (!dev->dev.platform_data) + if (!dev_get_platdata(&dev->dev)) dev->dev.platform_data = &ehci_platform_defaults; if (!dev->dev.dma_mask) dev->dev.dma_mask = &dev->dev.coherent_dma_mask; if (!dev->dev.coherent_dma_mask) dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - pdata = dev->dev.platform_data; + pdata = dev_get_platdata(&dev->dev); irq = platform_get_irq(dev, 0); if (irq < 0) { @@ -148,7 +148,7 @@ err_power: static int ehci_platform_remove(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); - struct usb_ehci_pdata *pdata = dev->dev.platform_data; + struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev); usb_remove_hcd(hcd); usb_put_hcd(hcd); @@ -167,7 +167,7 @@ static int ehci_platform_remove(struct platform_device *dev) static int ehci_platform_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct usb_ehci_pdata *pdata = dev->platform_data; + struct usb_ehci_pdata *pdata = dev_get_platdata(dev); struct platform_device *pdev = container_of(dev, struct platform_device, dev); bool do_wakeup = device_may_wakeup(dev); @@ -184,7 +184,7 @@ static int ehci_platform_suspend(struct device *dev) static int ehci_platform_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct usb_ehci_pdata *pdata = dev->platform_data; + struct usb_ehci_pdata *pdata = dev_get_platdata(dev); struct platform_device *pdev = container_of(dev, struct platform_device, dev); diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c index 601e208bd782..893b707f0000 100644 --- a/drivers/usb/host/ehci-pmcmsp.c +++ b/drivers/usb/host/ehci-pmcmsp.c @@ -286,7 +286,7 @@ static const struct hc_driver ehci_msp_hc_driver = { #else .irq = ehci_irq, #endif - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c index 86da09c0f8d0..6cc5567bf9c8 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -28,7 +28,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations @@ -215,15 +215,6 @@ static int ehci_hcd_ppc_of_remove(struct platform_device *op) } -static void ehci_hcd_ppc_of_shutdown(struct platform_device *op) -{ - struct usb_hcd *hcd = platform_get_drvdata(op); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - - static const struct of_device_id ehci_hcd_ppc_of_match[] = { { .compatible = "usb-ehci", @@ -236,7 +227,7 @@ MODULE_DEVICE_TABLE(of, ehci_hcd_ppc_of_match); static struct platform_driver ehci_hcd_ppc_of_driver = { .probe = ehci_hcd_ppc_of_probe, .remove = ehci_hcd_ppc_of_remove, - .shutdown = ehci_hcd_ppc_of_shutdown, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "ppc-of-ehci", .owner = THIS_MODULE, diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index fd983771b025..8188542ba17e 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -71,7 +71,7 @@ static const struct hc_driver ps3_ehci_hc_driver = { .product_desc = "PS3 EHCI Host Controller", .hcd_priv_size = sizeof(struct ehci_hcd), .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, .reset = ps3_ehci_hc_reset, .start = ehci_run, .stop = ehci_stop, diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index d34b399b78e2..e321804c3475 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -168,13 +168,13 @@ static void ehci_clear_tt_buffer(struct ehci_hcd *ehci, struct ehci_qh *qh, * Note: this routine is never called for Isochronous transfers. */ if (urb->dev->tt && !usb_pipeint(urb->pipe) && !qh->clearing_tt) { -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) struct usb_device *tt = urb->dev->tt->hub; dev_dbg(&tt->dev, "clear tt buffer port %d, a%d ep%d t%08x\n", urb->dev->ttport, urb->dev->devnum, usb_pipeendpoint(urb->pipe), token); -#endif /* DEBUG */ +#endif /* DEBUG || CONFIG_DYNAMIC_DEBUG */ if (!ehci_is_TDI(ehci) || urb->dev->tt->hub != ehci_to_hcd(ehci)->self.root_hub) { @@ -240,13 +240,6 @@ static int qtd_copy_status ( } else { /* unknown */ status = -EPROTO; } - - ehci_vdbg (ehci, - "dev%d ep%d%s qtd token %08x --> status %d\n", - usb_pipedevice (urb->pipe), - usb_pipeendpoint (urb->pipe), - usb_pipein (urb->pipe) ? "in" : "out", - token, status); } return status; @@ -254,8 +247,6 @@ static int qtd_copy_status ( static void ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status) -__releases(ehci->lock) -__acquires(ehci->lock) { if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { /* ... update hc-wide periodic stats */ @@ -281,11 +272,8 @@ __acquires(ehci->lock) urb->actual_length, urb->transfer_buffer_length); #endif - /* complete() can reenter this HCD */ usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb); - spin_unlock (&ehci->lock); usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status); - spin_lock (&ehci->lock); } static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh); @@ -1144,6 +1132,109 @@ submit_async ( } /*-------------------------------------------------------------------------*/ +#ifdef CONFIG_USB_HCD_TEST_MODE +/* + * This function creates the qtds and submits them for the + * SINGLE_STEP_SET_FEATURE Test. + * This is done in two parts: first SETUP req for GetDesc is sent then + * 15 seconds later, the IN stage for GetDesc starts to req data from dev + * + * is_setup : i/p arguement decides which of the two stage needs to be + * performed; TRUE - SETUP and FALSE - IN+STATUS + * Returns 0 if success + */ +static int submit_single_step_set_feature( + struct usb_hcd *hcd, + struct urb *urb, + int is_setup +) { + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct list_head qtd_list; + struct list_head *head; + + struct ehci_qtd *qtd, *qtd_prev; + dma_addr_t buf; + int len, maxpacket; + u32 token; + + INIT_LIST_HEAD(&qtd_list); + head = &qtd_list; + + /* URBs map to sequences of QTDs: one logical transaction */ + qtd = ehci_qtd_alloc(ehci, GFP_KERNEL); + if (unlikely(!qtd)) + return -1; + list_add_tail(&qtd->qtd_list, head); + qtd->urb = urb; + + token = QTD_STS_ACTIVE; + token |= (EHCI_TUNE_CERR << 10); + + len = urb->transfer_buffer_length; + /* + * Check if the request is to perform just the SETUP stage (getDesc) + * as in SINGLE_STEP_SET_FEATURE test, DATA stage (IN) happens + * 15 secs after the setup + */ + if (is_setup) { + /* SETUP pid */ + qtd_fill(ehci, qtd, urb->setup_dma, + sizeof(struct usb_ctrlrequest), + token | (2 /* "setup" */ << 8), 8); + + submit_async(ehci, urb, &qtd_list, GFP_ATOMIC); + return 0; /*Return now; we shall come back after 15 seconds*/ + } + + /* + * IN: data transfer stage: buffer setup : start the IN txn phase for + * the get_Desc SETUP which was sent 15seconds back + */ + token ^= QTD_TOGGLE; /*We need to start IN with DATA-1 Pid-sequence*/ + buf = urb->transfer_dma; + + token |= (1 /* "in" */ << 8); /*This is IN stage*/ + + maxpacket = max_packet(usb_maxpacket(urb->dev, urb->pipe, 0)); + + qtd_fill(ehci, qtd, buf, len, token, maxpacket); + + /* + * Our IN phase shall always be a short read; so keep the queue running + * and let it advance to the next qtd which zero length OUT status + */ + qtd->hw_alt_next = EHCI_LIST_END(ehci); + + /* STATUS stage for GetDesc control request */ + token ^= 0x0100; /* "in" <--> "out" */ + token |= QTD_TOGGLE; /* force DATA1 */ + + qtd_prev = qtd; + qtd = ehci_qtd_alloc(ehci, GFP_ATOMIC); + if (unlikely(!qtd)) + goto cleanup; + qtd->urb = urb; + qtd_prev->hw_next = QTD_NEXT(ehci, qtd->qtd_dma); + list_add_tail(&qtd->qtd_list, head); + + /* dont fill any data in such packets */ + qtd_fill(ehci, qtd, 0, 0, token, 0); + + /* by default, enable interrupt on urb completion */ + if (likely(!(urb->transfer_flags & URB_NO_INTERRUPT))) + qtd->hw_token |= cpu_to_hc32(ehci, QTD_IOC); + + submit_async(ehci, urb, &qtd_list, GFP_KERNEL); + + return 0; + +cleanup: + qtd_list_free(ehci, urb, head); + return -1; +} +#endif /* CONFIG_USB_HCD_TEST_MODE */ + +/*-------------------------------------------------------------------------*/ static void single_unlink_async(struct ehci_hcd *ehci, struct ehci_qh *qh) { diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 7cc26e621aa7..7c3de95c7054 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -75,7 +75,7 @@ static void s5p_setup_vbus_gpio(struct platform_device *pdev) static int s5p_ehci_probe(struct platform_device *pdev) { - struct s5p_ehci_platdata *pdata = pdev->dev.platform_data; + struct s5p_ehci_platdata *pdata = dev_get_platdata(&pdev->dev); struct s5p_ehci_hcd *s5p_ehci; struct usb_hcd *hcd; struct ehci_hcd *ehci; @@ -220,14 +220,6 @@ static int s5p_ehci_remove(struct platform_device *pdev) return 0; } -static void s5p_ehci_shutdown(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - #ifdef CONFIG_PM static int s5p_ehci_suspend(struct device *dev) { @@ -297,7 +289,7 @@ MODULE_DEVICE_TABLE(of, exynos_ehci_match); static struct platform_driver s5p_ehci_driver = { .probe = s5p_ehci_probe, .remove = s5p_ehci_remove, - .shutdown = s5p_ehci_shutdown, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "s5p-ehci", .owner = THIS_MODULE, diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 8e3c878f38cf..85dd24ed97a6 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -169,7 +169,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) break; } } -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) if (usecs > ehci->uframe_periodic_max) ehci_err (ehci, "uframe %d sched overrun: %d usecs\n", frame * 8 + uframe, usecs); @@ -327,17 +327,8 @@ static int tt_available ( periodic_tt_usecs (ehci, dev, frame, tt_usecs); - ehci_vdbg(ehci, "tt frame %d check %d usecs start uframe %d in" - " schedule %d/%d/%d/%d/%d/%d/%d/%d\n", - frame, usecs, uframe, - tt_usecs[0], tt_usecs[1], tt_usecs[2], tt_usecs[3], - tt_usecs[4], tt_usecs[5], tt_usecs[6], tt_usecs[7]); - - if (max_tt_usecs[uframe] <= tt_usecs[uframe]) { - ehci_vdbg(ehci, "frame %d uframe %d fully scheduled\n", - frame, uframe); + if (max_tt_usecs[uframe] <= tt_usecs[uframe]) return 0; - } /* special case for isoc transfers larger than 125us: * the first and each subsequent fully used uframe @@ -348,13 +339,8 @@ static int tt_available ( int ufs = (usecs / 125); int i; for (i = uframe; i < (uframe + ufs) && i < 8; i++) - if (0 < tt_usecs[i]) { - ehci_vdbg(ehci, - "multi-uframe xfer can't fit " - "in frame %d uframe %d\n", - frame, i); + if (0 < tt_usecs[i]) return 0; - } } tt_usecs[uframe] += usecs; @@ -362,12 +348,8 @@ static int tt_available ( carryover_tt_bandwidth(tt_usecs); /* fail if the carryover pushed bw past the last uframe's limit */ - if (max_tt_usecs[7] < tt_usecs[7]) { - ehci_vdbg(ehci, - "tt unavailable usecs %d frame %d uframe %d\n", - usecs, frame, uframe); + if (max_tt_usecs[7] < tt_usecs[7]) return 0; - } } return 1; @@ -601,12 +583,29 @@ static void qh_unlink_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) list_del(&qh->intr_node); } +static void cancel_unlink_wait_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) +{ + if (qh->qh_state != QH_STATE_LINKED || + list_empty(&qh->unlink_node)) + return; + + list_del_init(&qh->unlink_node); + + /* + * TODO: disable the event of EHCI_HRTIMER_START_UNLINK_INTR for + * avoiding unnecessary CPU wakeup + */ +} + static void start_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) { /* If the QH isn't linked then there's nothing we can do. */ if (qh->qh_state != QH_STATE_LINKED) return; + /* if the qh is waiting for unlink, cancel it now */ + cancel_unlink_wait_intr(ehci, qh); + qh_unlink_periodic (ehci, qh); /* Make sure the unlinks are visible before starting the timer */ @@ -632,6 +631,27 @@ static void start_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) } } +/* + * It is common only one intr URB is scheduled on one qh, and + * given complete() is run in tasklet context, introduce a bit + * delay to avoid unlink qh too early. + */ +static void start_unlink_intr_wait(struct ehci_hcd *ehci, + struct ehci_qh *qh) +{ + qh->unlink_cycle = ehci->intr_unlink_wait_cycle; + + /* New entries go at the end of the intr_unlink_wait list */ + list_add_tail(&qh->unlink_node, &ehci->intr_unlink_wait); + + if (ehci->rh_state < EHCI_RH_RUNNING) + ehci_handle_start_intr_unlinks(ehci); + else if (ehci->intr_unlink_wait.next == &qh->unlink_node) { + ehci_enable_event(ehci, EHCI_HRTIMER_START_UNLINK_INTR, true); + ++ehci->intr_unlink_wait_cycle; + } +} + static void end_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) { struct ehci_qh_hw *hw = qh->hw; @@ -889,6 +909,9 @@ static int intr_submit ( if (qh->qh_state == QH_STATE_IDLE) { qh_refresh(ehci, qh); qh_link_periodic(ehci, qh); + } else { + /* cancel unlink wait for the qh */ + cancel_unlink_wait_intr(ehci, qh); } /* ... update usbfs periodic stats */ @@ -924,9 +947,11 @@ static void scan_intr(struct ehci_hcd *ehci) * in qh_unlink_periodic(). */ temp = qh_completions(ehci, qh); - if (unlikely(temp || (list_empty(&qh->qtd_list) && - qh->qh_state == QH_STATE_LINKED))) + if (unlikely(temp)) start_unlink_intr(ehci, qh); + else if (unlikely(list_empty(&qh->qtd_list) && + qh->qh_state == QH_STATE_LINKED)) + start_unlink_intr_wait(ehci, qh); } } } @@ -1573,16 +1598,9 @@ static void itd_link_urb( next_uframe = stream->next_uframe & (mod - 1); - if (unlikely (list_empty(&stream->td_list))) { + if (unlikely (list_empty(&stream->td_list))) ehci_to_hcd(ehci)->self.bandwidth_allocated += stream->bandwidth; - ehci_vdbg (ehci, - "schedule devp %s ep%d%s-iso period %d start %d.%d\n", - urb->dev->devpath, stream->bEndpointAddress & 0x0f, - (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out", - urb->interval, - next_uframe >> 3, next_uframe & 0x7); - } if (ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs == 0) { if (ehci->amd_pll_fix == 1) @@ -1717,14 +1735,9 @@ static bool itd_complete(struct ehci_hcd *ehci, struct ehci_itd *itd) usb_amd_quirk_pll_enable(); } - if (unlikely(list_is_singular(&stream->td_list))) { + if (unlikely(list_is_singular(&stream->td_list))) ehci_to_hcd(ehci)->self.bandwidth_allocated -= stream->bandwidth; - ehci_vdbg (ehci, - "deschedule devp %s ep%d%s-iso\n", - dev->devpath, stream->bEndpointAddress & 0x0f, - (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out"); - } done: itd->urb = NULL; @@ -1982,17 +1995,10 @@ static void sitd_link_urb( next_uframe = stream->next_uframe; - if (list_empty(&stream->td_list)) { + if (list_empty(&stream->td_list)) /* usbfs ignores TT bandwidth */ ehci_to_hcd(ehci)->self.bandwidth_allocated += stream->bandwidth; - ehci_vdbg (ehci, - "sched devp %s ep%d%s-iso [%d] %dms/%04x\n", - urb->dev->devpath, stream->bEndpointAddress & 0x0f, - (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out", - (next_uframe >> 3) & (ehci->periodic_size - 1), - stream->interval, hc32_to_cpu(ehci, stream->splits)); - } if (ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs == 0) { if (ehci->amd_pll_fix == 1) @@ -2106,14 +2112,9 @@ static bool sitd_complete(struct ehci_hcd *ehci, struct ehci_sitd *sitd) usb_amd_quirk_pll_enable(); } - if (list_is_singular(&stream->td_list)) { + if (list_is_singular(&stream->td_list)) ehci_to_hcd(ehci)->self.bandwidth_allocated -= stream->bandwidth; - ehci_vdbg (ehci, - "deschedule devp %s ep%d%s-iso\n", - dev->devpath, stream->bEndpointAddress & 0x0f, - (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out"); - } done: sitd->urb = NULL; diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c index b2de52d39614..8a734498079b 100644 --- a/drivers/usb/host/ehci-sead3.c +++ b/drivers/usb/host/ehci-sead3.c @@ -55,7 +55,7 @@ const struct hc_driver ehci_sead3_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c index c4c0ee92a397..dc899eb2b861 100644 --- a/drivers/usb/host/ehci-sh.c +++ b/drivers/usb/host/ehci-sh.c @@ -36,7 +36,7 @@ static const struct hc_driver ehci_sh_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY, + .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, /* * basic lifecycle operations @@ -104,7 +104,7 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev) goto fail_create_hcd; } - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); /* initialize hcd */ hcd = usb_create_hcd(&ehci_sh_hc_driver, &pdev->dev, diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 6ee7ef79b4f8..78fa76da3324 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -25,9 +25,9 @@ #include <linux/irq.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/of_gpio.h> #include <linux/platform_device.h> -#include <linux/platform_data/tegra_usb.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/usb/ehci_def.h> @@ -51,6 +51,10 @@ static struct hc_driver __read_mostly tegra_ehci_hc_driver; +struct tegra_ehci_soc_config { + bool has_hostpc; +}; + static int (*orig_hub_control)(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength); @@ -58,7 +62,6 @@ static int (*orig_hub_control)(struct usb_hcd *hcd, struct tegra_ehci_hcd { struct tegra_usb_phy *phy; struct clk *clk; - struct usb_phy *transceiver; int port_resuming; bool needs_double_reset; enum tegra_usb_phy_port_speed port_speed; @@ -322,50 +325,38 @@ static void tegra_ehci_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) free_dma_aligned_buffer(urb); } -static int setup_vbus_gpio(struct platform_device *pdev, - struct tegra_ehci_platform_data *pdata) -{ - int err = 0; - int gpio; - - gpio = pdata->vbus_gpio; - if (!gpio_is_valid(gpio)) - gpio = of_get_named_gpio(pdev->dev.of_node, - "nvidia,vbus-gpio", 0); - if (!gpio_is_valid(gpio)) - return 0; +static const struct tegra_ehci_soc_config tegra30_soc_config = { + .has_hostpc = true, +}; - err = gpio_request(gpio, "vbus_gpio"); - if (err) { - dev_err(&pdev->dev, "can't request vbus gpio %d", gpio); - return err; - } - err = gpio_direction_output(gpio, 1); - if (err) { - dev_err(&pdev->dev, "can't enable vbus\n"); - return err; - } +static const struct tegra_ehci_soc_config tegra20_soc_config = { + .has_hostpc = false, +}; - return err; -} +static struct of_device_id tegra_ehci_of_match[] = { + { .compatible = "nvidia,tegra30-ehci", .data = &tegra30_soc_config }, + { .compatible = "nvidia,tegra20-ehci", .data = &tegra20_soc_config }, + { }, +}; static int tegra_ehci_probe(struct platform_device *pdev) { + const struct of_device_id *match; + const struct tegra_ehci_soc_config *soc_config; struct resource *res; struct usb_hcd *hcd; struct ehci_hcd *ehci; struct tegra_ehci_hcd *tegra; - struct tegra_ehci_platform_data *pdata; int err = 0; int irq; - struct device_node *np_phy; struct usb_phy *u_phy; - pdata = pdev->dev.platform_data; - if (!pdata) { - dev_err(&pdev->dev, "Platform data missing\n"); - return -EINVAL; + match = of_match_device(tegra_ehci_of_match, &pdev->dev); + if (!match) { + dev_err(&pdev->dev, "Error: No device match found\n"); + return -ENODEV; } + soc_config = match->data; /* Right now device-tree probed devices don't get dma_mask set. * Since shared usb code relies on it, set it here for now. @@ -376,14 +367,11 @@ static int tegra_ehci_probe(struct platform_device *pdev) if (!pdev->dev.coherent_dma_mask) pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - setup_vbus_gpio(pdev, pdata); - hcd = usb_create_hcd(&tegra_ehci_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { dev_err(&pdev->dev, "Unable to create HCD\n"); - err = -ENOMEM; - goto cleanup_vbus_gpio; + return -ENOMEM; } platform_set_drvdata(pdev, hcd); ehci = hcd_to_ehci(hcd); @@ -406,13 +394,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) udelay(1); tegra_periph_reset_deassert(tegra->clk); - np_phy = of_parse_phandle(pdev->dev.of_node, "nvidia,phy", 0); - if (!np_phy) { - err = -ENODEV; - goto cleanup_clk_en; - } - - u_phy = tegra_usb_get_phy(np_phy); + u_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "nvidia,phy", 0); if (IS_ERR(u_phy)) { err = PTR_ERR(u_phy); goto cleanup_clk_en; @@ -437,6 +419,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto cleanup_clk_en; } ehci->caps = hcd->regs + 0x100; + ehci->has_hostpc = soc_config->has_hostpc; err = usb_phy_init(hcd->phy); if (err) { @@ -466,26 +449,18 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto cleanup_phy; } - if (pdata->operating_mode == TEGRA_USB_OTG) { - tegra->transceiver = - devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (!IS_ERR(tegra->transceiver)) - otg_set_host(tegra->transceiver->otg, &hcd->self); - } else { - tegra->transceiver = ERR_PTR(-ENODEV); - } + otg_set_host(u_phy->otg, &hcd->self); err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) { dev_err(&pdev->dev, "Failed to add USB HCD\n"); - goto cleanup_transceiver; + goto cleanup_otg_set_host; } return err; -cleanup_transceiver: - if (!IS_ERR(tegra->transceiver)) - otg_set_host(tegra->transceiver->otg, NULL); +cleanup_otg_set_host: + otg_set_host(u_phy->otg, NULL); cleanup_phy: usb_phy_shutdown(hcd->phy); cleanup_clk_en: @@ -494,8 +469,6 @@ cleanup_clk_get: clk_put(tegra->clk); cleanup_hcd_create: usb_put_hcd(hcd); -cleanup_vbus_gpio: - /* FIXME: Undo setup_vbus_gpio() here */ return err; } @@ -505,8 +478,7 @@ static int tegra_ehci_remove(struct platform_device *pdev) struct tegra_ehci_hcd *tegra = (struct tegra_ehci_hcd *)hcd_to_ehci(hcd)->priv; - if (!IS_ERR(tegra->transceiver)) - otg_set_host(tegra->transceiver->otg, NULL); + otg_set_host(hcd->phy->otg, NULL); usb_phy_shutdown(hcd->phy); usb_remove_hcd(hcd); @@ -525,11 +497,6 @@ static void tegra_ehci_hcd_shutdown(struct platform_device *pdev) hcd->driver->shutdown(hcd); } -static struct of_device_id tegra_ehci_of_match[] = { - { .compatible = "nvidia,tegra20-ehci", }, - { }, -}; - static struct platform_driver tegra_ehci_driver = { .probe = tegra_ehci_probe, .remove = tegra_ehci_remove, diff --git a/drivers/usb/host/ehci-tilegx.c b/drivers/usb/host/ehci-tilegx.c index d72b2929c03d..67026ffbf9a8 100644 --- a/drivers/usb/host/ehci-tilegx.c +++ b/drivers/usb/host/ehci-tilegx.c @@ -61,7 +61,7 @@ static const struct hc_driver ehci_tilegx_hc_driver = { * Generic hardware linkage. */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * Basic lifecycle operations. @@ -101,7 +101,7 @@ static int ehci_hcd_tilegx_drv_probe(struct platform_device *pdev) { struct usb_hcd *hcd; struct ehci_hcd *ehci; - struct tilegx_usb_platform_data *pdata = pdev->dev.platform_data; + struct tilegx_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); pte_t pte = { 0 }; int my_cpu = smp_processor_id(); int ret; @@ -186,7 +186,7 @@ err_hcd: static int ehci_hcd_tilegx_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct tilegx_usb_platform_data *pdata = pdev->dev.platform_data; + struct tilegx_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); usb_remove_hcd(hcd); usb_put_hcd(hcd); diff --git a/drivers/usb/host/ehci-timer.c b/drivers/usb/host/ehci-timer.c index 11e5b32f73e9..424ac5d83714 100644 --- a/drivers/usb/host/ehci-timer.c +++ b/drivers/usb/host/ehci-timer.c @@ -72,6 +72,7 @@ static unsigned event_delays_ns[] = { 1 * NSEC_PER_MSEC, /* EHCI_HRTIMER_POLL_DEAD */ 1125 * NSEC_PER_USEC, /* EHCI_HRTIMER_UNLINK_INTR */ 2 * NSEC_PER_MSEC, /* EHCI_HRTIMER_FREE_ITDS */ + 5 * NSEC_PER_MSEC, /* EHCI_HRTIMER_START_UNLINK_INTR */ 6 * NSEC_PER_MSEC, /* EHCI_HRTIMER_ASYNC_UNLINKS */ 10 * NSEC_PER_MSEC, /* EHCI_HRTIMER_IAA_WATCHDOG */ 10 * NSEC_PER_MSEC, /* EHCI_HRTIMER_DISABLE_PERIODIC */ @@ -215,6 +216,36 @@ static void ehci_handle_controller_death(struct ehci_hcd *ehci) /* Not in process context, so don't try to reset the controller */ } +/* start to unlink interrupt QHs */ +static void ehci_handle_start_intr_unlinks(struct ehci_hcd *ehci) +{ + bool stopped = (ehci->rh_state < EHCI_RH_RUNNING); + + /* + * Process all the QHs on the intr_unlink list that were added + * before the current unlink cycle began. The list is in + * temporal order, so stop when we reach the first entry in the + * current cycle. But if the root hub isn't running then + * process all the QHs on the list. + */ + while (!list_empty(&ehci->intr_unlink_wait)) { + struct ehci_qh *qh; + + qh = list_first_entry(&ehci->intr_unlink_wait, + struct ehci_qh, unlink_node); + if (!stopped && (qh->unlink_cycle == + ehci->intr_unlink_wait_cycle)) + break; + list_del_init(&qh->unlink_node); + start_unlink_intr(ehci, qh); + } + + /* Handle remaining entries later */ + if (!list_empty(&ehci->intr_unlink_wait)) { + ehci_enable_event(ehci, EHCI_HRTIMER_START_UNLINK_INTR, true); + ++ehci->intr_unlink_wait_cycle; + } +} /* Handle unlinked interrupt QHs once they are gone from the hardware */ static void ehci_handle_intr_unlinks(struct ehci_hcd *ehci) @@ -236,7 +267,7 @@ static void ehci_handle_intr_unlinks(struct ehci_hcd *ehci) unlink_node); if (!stopped && qh->unlink_cycle == ehci->intr_unlink_cycle) break; - list_del(&qh->unlink_node); + list_del_init(&qh->unlink_node); end_unlink_intr(ehci, qh); } @@ -363,6 +394,7 @@ static void (*event_handlers[])(struct ehci_hcd *) = { ehci_handle_controller_death, /* EHCI_HRTIMER_POLL_DEAD */ ehci_handle_intr_unlinks, /* EHCI_HRTIMER_UNLINK_INTR */ end_free_itds, /* EHCI_HRTIMER_FREE_ITDS */ + ehci_handle_start_intr_unlinks, /* EHCI_HRTIMER_START_UNLINK_INTR */ unlink_empty_async, /* EHCI_HRTIMER_ASYNC_UNLINKS */ ehci_iaa_watchdog, /* EHCI_HRTIMER_IAA_WATCHDOG */ ehci_disable_PSE, /* EHCI_HRTIMER_DISABLE_PERIODIC */ diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c index 59e0e24c753f..1c370dfbee0d 100644 --- a/drivers/usb/host/ehci-w90x900.c +++ b/drivers/usb/host/ehci-w90x900.c @@ -108,7 +108,7 @@ static const struct hc_driver ehci_w90x900_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2|HCD_MEMORY, + .flags = HCD_USB2|HCD_MEMORY|HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index 35c7f90384a6..95979f9f4381 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -79,7 +79,7 @@ static const struct hc_driver ehci_xilinx_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations @@ -220,21 +220,6 @@ static int ehci_hcd_xilinx_of_remove(struct platform_device *op) return 0; } -/** - * ehci_hcd_xilinx_of_shutdown - shutdown the hcd - * @op: pointer to platform_device structure that is to be removed - * - * Properly shutdown the hcd, call driver's shutdown routine. - */ -static void ehci_hcd_xilinx_of_shutdown(struct platform_device *op) -{ - struct usb_hcd *hcd = platform_get_drvdata(op); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - - static const struct of_device_id ehci_hcd_xilinx_of_match[] = { {.compatible = "xlnx,xps-usb-host-1.00.a",}, {}, @@ -244,7 +229,7 @@ MODULE_DEVICE_TABLE(of, ehci_hcd_xilinx_of_match); static struct platform_driver ehci_hcd_xilinx_of_driver = { .probe = ehci_hcd_xilinx_of_probe, .remove = ehci_hcd_xilinx_of_remove, - .shutdown = ehci_hcd_xilinx_of_shutdown, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "xilinx-of-ehci", .owner = THIS_MODULE, diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 64f9a08e959c..291db7d09f22 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -38,7 +38,7 @@ typedef __u16 __bitwise __hc16; #endif /* statistics can be kept for tuning/monitoring */ -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) #define EHCI_STATS #endif @@ -88,6 +88,7 @@ enum ehci_hrtimer_event { EHCI_HRTIMER_POLL_DEAD, /* Wait for dead controller to stop */ EHCI_HRTIMER_UNLINK_INTR, /* Wait for interrupt QH unlink */ EHCI_HRTIMER_FREE_ITDS, /* Wait for unused iTDs and siTDs */ + EHCI_HRTIMER_START_UNLINK_INTR, /* Unlink empty interrupt QHs */ EHCI_HRTIMER_ASYNC_UNLINKS, /* Unlink empty async QHs */ EHCI_HRTIMER_IAA_WATCHDOG, /* Handle lost IAA interrupts */ EHCI_HRTIMER_DISABLE_PERIODIC, /* Wait to disable periodic sched */ @@ -143,7 +144,9 @@ struct ehci_hcd { /* one per controller */ unsigned i_thresh; /* uframes HC might cache */ union ehci_shadow *pshadow; /* mirror hw periodic table */ + struct list_head intr_unlink_wait; struct list_head intr_unlink; + unsigned intr_unlink_wait_cycle; unsigned intr_unlink_cycle; unsigned now_frame; /* frame from HC hardware */ unsigned last_iso_frame; /* last frame scanned for iso */ @@ -210,6 +213,7 @@ struct ehci_hcd { /* one per controller */ #define OHCI_HCCTRL_LEN 0x4 __hc32 *ohci_hcctrl_reg; unsigned has_hostpc:1; + unsigned has_tdi_phy_lpm:1; unsigned has_ppcd:1; /* support per-port change bits */ u8 sbrn; /* packed release number */ @@ -222,7 +226,7 @@ struct ehci_hcd { /* one per controller */ #endif /* debug files */ -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) struct dentry *debug_dir; #endif @@ -778,15 +782,10 @@ static inline u32 hc32_to_cpup (const struct ehci_hcd *ehci, const __hc32 *x) #define ehci_warn(ehci, fmt, args...) \ dev_warn(ehci_to_hcd(ehci)->self.controller , fmt , ## args) -#ifdef VERBOSE_DEBUG -# define ehci_vdbg ehci_dbg -#else - static inline void ehci_vdbg(struct ehci_hcd *ehci, ...) {} -#endif -#ifndef DEBUG +#if !defined(DEBUG) && !defined(CONFIG_DYNAMIC_DEBUG) #define STUB_DEBUG_FILES -#endif /* DEBUG */ +#endif /* !DEBUG && !CONFIG_DYNAMIC_DEBUG */ /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c new file mode 100644 index 000000000000..fce13bcc4a3e --- /dev/null +++ b/drivers/usb/host/fotg210-hcd.c @@ -0,0 +1,6049 @@ +/* + * Faraday FOTG210 EHCI-like driver + * + * Copyright (c) 2013 Faraday Technology Corporation + * + * Author: Yuan-Hsin Chen <yhchen@faraday-tech.com> + * Feng-Hsin Chiang <john453@faraday-tech.com> + * Po-Yu Chuang <ratbert.chuang@gmail.com> + * + * Most of code borrowed from the Linux-3.7 EHCI driver + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include <linux/module.h> +#include <linux/device.h> +#include <linux/dmapool.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/sched.h> +#include <linux/vmalloc.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/hrtimer.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/moduleparam.h> +#include <linux/dma-mapping.h> +#include <linux/debugfs.h> +#include <linux/slab.h> +#include <linux/uaccess.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <asm/byteorder.h> +#include <asm/irq.h> +#include <asm/unaligned.h> + +/*-------------------------------------------------------------------------*/ +#define DRIVER_AUTHOR "Yuan-Hsin Chen" +#define DRIVER_DESC "FOTG210 Host Controller (EHCI) Driver" + +static const char hcd_name[] = "fotg210_hcd"; + +#undef VERBOSE_DEBUG +#undef FOTG210_URB_TRACE + +#ifdef DEBUG +#define FOTG210_STATS +#endif + +/* magic numbers that can affect system performance */ +#define FOTG210_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */ +#define FOTG210_TUNE_RL_HS 4 /* nak throttle; see 4.9 */ +#define FOTG210_TUNE_RL_TT 0 +#define FOTG210_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */ +#define FOTG210_TUNE_MULT_TT 1 +/* + * Some drivers think it's safe to schedule isochronous transfers more than + * 256 ms into the future (partly as a result of an old bug in the scheduling + * code). In an attempt to avoid trouble, we will use a minimum scheduling + * length of 512 frames instead of 256. + */ +#define FOTG210_TUNE_FLS 1 /* (medium) 512-frame schedule */ + +/* Initial IRQ latency: faster than hw default */ +static int log2_irq_thresh; /* 0 to 6 */ +module_param(log2_irq_thresh, int, S_IRUGO); +MODULE_PARM_DESC(log2_irq_thresh, "log2 IRQ latency, 1-64 microframes"); + +/* initial park setting: slower than hw default */ +static unsigned park; +module_param(park, uint, S_IRUGO); +MODULE_PARM_DESC(park, "park setting; 1-3 back-to-back async packets"); + +/* for link power management(LPM) feature */ +static unsigned int hird; +module_param(hird, int, S_IRUGO); +MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us"); + +#define INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT) + +#include "fotg210.h" + +/*-------------------------------------------------------------------------*/ + +#define fotg210_dbg(fotg210, fmt, args...) \ + dev_dbg(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args) +#define fotg210_err(fotg210, fmt, args...) \ + dev_err(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args) +#define fotg210_info(fotg210, fmt, args...) \ + dev_info(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args) +#define fotg210_warn(fotg210, fmt, args...) \ + dev_warn(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args) + +#ifdef VERBOSE_DEBUG +# define fotg210_vdbg fotg210_dbg +#else + static inline void fotg210_vdbg(struct fotg210_hcd *fotg210, ...) {} +#endif + +#ifdef DEBUG + +/* check the values in the HCSPARAMS register + * (host controller _Structural_ parameters) + * see EHCI spec, Table 2-4 for each value + */ +static void dbg_hcs_params(struct fotg210_hcd *fotg210, char *label) +{ + u32 params = fotg210_readl(fotg210, &fotg210->caps->hcs_params); + + fotg210_dbg(fotg210, + "%s hcs_params 0x%x ports=%d\n", + label, params, + HCS_N_PORTS(params) + ); +} +#else + +static inline void dbg_hcs_params(struct fotg210_hcd *fotg210, char *label) {} + +#endif + +#ifdef DEBUG + +/* check the values in the HCCPARAMS register + * (host controller _Capability_ parameters) + * see EHCI Spec, Table 2-5 for each value + * */ +static void dbg_hcc_params(struct fotg210_hcd *fotg210, char *label) +{ + u32 params = fotg210_readl(fotg210, &fotg210->caps->hcc_params); + + fotg210_dbg(fotg210, + "%s hcc_params %04x uframes %s%s\n", + label, + params, + HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024", + HCC_CANPARK(params) ? " park" : ""); +} +#else + +static inline void dbg_hcc_params(struct fotg210_hcd *fotg210, char *label) {} + +#endif + +#ifdef DEBUG + +static void __maybe_unused +dbg_qtd(const char *label, struct fotg210_hcd *fotg210, struct fotg210_qtd *qtd) +{ + fotg210_dbg(fotg210, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd, + hc32_to_cpup(fotg210, &qtd->hw_next), + hc32_to_cpup(fotg210, &qtd->hw_alt_next), + hc32_to_cpup(fotg210, &qtd->hw_token), + hc32_to_cpup(fotg210, &qtd->hw_buf[0])); + if (qtd->hw_buf[1]) + fotg210_dbg(fotg210, " p1=%08x p2=%08x p3=%08x p4=%08x\n", + hc32_to_cpup(fotg210, &qtd->hw_buf[1]), + hc32_to_cpup(fotg210, &qtd->hw_buf[2]), + hc32_to_cpup(fotg210, &qtd->hw_buf[3]), + hc32_to_cpup(fotg210, &qtd->hw_buf[4])); +} + +static void __maybe_unused +dbg_qh(const char *label, struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{ + struct fotg210_qh_hw *hw = qh->hw; + + fotg210_dbg(fotg210, "%s qh %p n%08x info %x %x qtd %x\n", label, + qh, hw->hw_next, hw->hw_info1, hw->hw_info2, hw->hw_current); + dbg_qtd("overlay", fotg210, (struct fotg210_qtd *) &hw->hw_qtd_next); +} + +static void __maybe_unused +dbg_itd(const char *label, struct fotg210_hcd *fotg210, struct fotg210_itd *itd) +{ + fotg210_dbg(fotg210, "%s[%d] itd %p, next %08x, urb %p\n", + label, itd->frame, itd, hc32_to_cpu(fotg210, itd->hw_next), + itd->urb); + fotg210_dbg(fotg210, + " trans: %08x %08x %08x %08x %08x %08x %08x %08x\n", + hc32_to_cpu(fotg210, itd->hw_transaction[0]), + hc32_to_cpu(fotg210, itd->hw_transaction[1]), + hc32_to_cpu(fotg210, itd->hw_transaction[2]), + hc32_to_cpu(fotg210, itd->hw_transaction[3]), + hc32_to_cpu(fotg210, itd->hw_transaction[4]), + hc32_to_cpu(fotg210, itd->hw_transaction[5]), + hc32_to_cpu(fotg210, itd->hw_transaction[6]), + hc32_to_cpu(fotg210, itd->hw_transaction[7])); + fotg210_dbg(fotg210, + " buf: %08x %08x %08x %08x %08x %08x %08x\n", + hc32_to_cpu(fotg210, itd->hw_bufp[0]), + hc32_to_cpu(fotg210, itd->hw_bufp[1]), + hc32_to_cpu(fotg210, itd->hw_bufp[2]), + hc32_to_cpu(fotg210, itd->hw_bufp[3]), + hc32_to_cpu(fotg210, itd->hw_bufp[4]), + hc32_to_cpu(fotg210, itd->hw_bufp[5]), + hc32_to_cpu(fotg210, itd->hw_bufp[6])); + fotg210_dbg(fotg210, " index: %d %d %d %d %d %d %d %d\n", + itd->index[0], itd->index[1], itd->index[2], + itd->index[3], itd->index[4], itd->index[5], + itd->index[6], itd->index[7]); +} + +static int __maybe_unused +dbg_status_buf(char *buf, unsigned len, const char *label, u32 status) +{ + return scnprintf(buf, len, + "%s%sstatus %04x%s%s%s%s%s%s%s%s%s%s", + label, label[0] ? " " : "", status, + (status & STS_ASS) ? " Async" : "", + (status & STS_PSS) ? " Periodic" : "", + (status & STS_RECL) ? " Recl" : "", + (status & STS_HALT) ? " Halt" : "", + (status & STS_IAA) ? " IAA" : "", + (status & STS_FATAL) ? " FATAL" : "", + (status & STS_FLR) ? " FLR" : "", + (status & STS_PCD) ? " PCD" : "", + (status & STS_ERR) ? " ERR" : "", + (status & STS_INT) ? " INT" : "" + ); +} + +static int __maybe_unused +dbg_intr_buf(char *buf, unsigned len, const char *label, u32 enable) +{ + return scnprintf(buf, len, + "%s%sintrenable %02x%s%s%s%s%s%s", + label, label[0] ? " " : "", enable, + (enable & STS_IAA) ? " IAA" : "", + (enable & STS_FATAL) ? " FATAL" : "", + (enable & STS_FLR) ? " FLR" : "", + (enable & STS_PCD) ? " PCD" : "", + (enable & STS_ERR) ? " ERR" : "", + (enable & STS_INT) ? " INT" : "" + ); +} + +static const char *const fls_strings[] = { "1024", "512", "256", "??" }; + +static int +dbg_command_buf(char *buf, unsigned len, const char *label, u32 command) +{ + return scnprintf(buf, len, + "%s%scommand %07x %s=%d ithresh=%d%s%s%s " + "period=%s%s %s", + label, label[0] ? " " : "", command, + (command & CMD_PARK) ? " park" : "(park)", + CMD_PARK_CNT(command), + (command >> 16) & 0x3f, + (command & CMD_IAAD) ? " IAAD" : "", + (command & CMD_ASE) ? " Async" : "", + (command & CMD_PSE) ? " Periodic" : "", + fls_strings[(command >> 2) & 0x3], + (command & CMD_RESET) ? " Reset" : "", + (command & CMD_RUN) ? "RUN" : "HALT" + ); +} + +static int +dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) +{ + char *sig; + + /* signaling state */ + switch (status & (3 << 10)) { + case 0 << 10: + sig = "se0"; + break; + case 1 << 10: + sig = "k"; + break; /* low speed */ + case 2 << 10: + sig = "j"; + break; + default: + sig = "?"; + break; + } + + return scnprintf(buf, len, + "%s%sport:%d status %06x %d " + "sig=%s%s%s%s%s%s%s%s", + label, label[0] ? " " : "", port, status, + status>>25,/*device address */ + sig, + (status & PORT_RESET) ? " RESET" : "", + (status & PORT_SUSPEND) ? " SUSPEND" : "", + (status & PORT_RESUME) ? " RESUME" : "", + (status & PORT_PEC) ? " PEC" : "", + (status & PORT_PE) ? " PE" : "", + (status & PORT_CSC) ? " CSC" : "", + (status & PORT_CONNECT) ? " CONNECT" : ""); +} + +#else +static inline void __maybe_unused +dbg_qh(char *label, struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{} + +static inline int __maybe_unused +dbg_status_buf(char *buf, unsigned len, const char *label, u32 status) +{ return 0; } + +static inline int __maybe_unused +dbg_command_buf(char *buf, unsigned len, const char *label, u32 command) +{ return 0; } + +static inline int __maybe_unused +dbg_intr_buf(char *buf, unsigned len, const char *label, u32 enable) +{ return 0; } + +static inline int __maybe_unused +dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) +{ return 0; } + +#endif /* DEBUG */ + +/* functions have the "wrong" filename when they're output... */ +#define dbg_status(fotg210, label, status) { \ + char _buf[80]; \ + dbg_status_buf(_buf, sizeof(_buf), label, status); \ + fotg210_dbg(fotg210, "%s\n", _buf); \ +} + +#define dbg_cmd(fotg210, label, command) { \ + char _buf[80]; \ + dbg_command_buf(_buf, sizeof(_buf), label, command); \ + fotg210_dbg(fotg210, "%s\n", _buf); \ +} + +#define dbg_port(fotg210, label, port, status) { \ + char _buf[80]; \ + dbg_port_buf(_buf, sizeof(_buf), label, port, status); \ + fotg210_dbg(fotg210, "%s\n", _buf); \ +} + +/*-------------------------------------------------------------------------*/ + +#ifdef STUB_DEBUG_FILES + +static inline void create_debug_files(struct fotg210_hcd *bus) { } +static inline void remove_debug_files(struct fotg210_hcd *bus) { } + +#else + +/* troubleshooting help: expose state in debugfs */ + +static int debug_async_open(struct inode *, struct file *); +static int debug_periodic_open(struct inode *, struct file *); +static int debug_registers_open(struct inode *, struct file *); +static int debug_async_open(struct inode *, struct file *); + +static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*); +static int debug_close(struct inode *, struct file *); + +static const struct file_operations debug_async_fops = { + .owner = THIS_MODULE, + .open = debug_async_open, + .read = debug_output, + .release = debug_close, + .llseek = default_llseek, +}; +static const struct file_operations debug_periodic_fops = { + .owner = THIS_MODULE, + .open = debug_periodic_open, + .read = debug_output, + .release = debug_close, + .llseek = default_llseek, +}; +static const struct file_operations debug_registers_fops = { + .owner = THIS_MODULE, + .open = debug_registers_open, + .read = debug_output, + .release = debug_close, + .llseek = default_llseek, +}; + +static struct dentry *fotg210_debug_root; + +struct debug_buffer { + ssize_t (*fill_func)(struct debug_buffer *); /* fill method */ + struct usb_bus *bus; + struct mutex mutex; /* protect filling of buffer */ + size_t count; /* number of characters filled into buffer */ + char *output_buf; + size_t alloc_size; +}; + +#define speed_char(info1)({ char tmp; \ + switch (info1 & (3 << 12)) { \ + case QH_FULL_SPEED: \ + tmp = 'f'; break; \ + case QH_LOW_SPEED: \ + tmp = 'l'; break; \ + case QH_HIGH_SPEED: \ + tmp = 'h'; break; \ + default: \ + tmp = '?'; break; \ + }; tmp; }) + +static inline char token_mark(struct fotg210_hcd *fotg210, __hc32 token) +{ + __u32 v = hc32_to_cpu(fotg210, token); + + if (v & QTD_STS_ACTIVE) + return '*'; + if (v & QTD_STS_HALT) + return '-'; + if (!IS_SHORT_READ(v)) + return ' '; + /* tries to advance through hw_alt_next */ + return '/'; +} + +static void qh_lines( + struct fotg210_hcd *fotg210, + struct fotg210_qh *qh, + char **nextp, + unsigned *sizep +) +{ + u32 scratch; + u32 hw_curr; + struct fotg210_qtd *td; + unsigned temp; + unsigned size = *sizep; + char *next = *nextp; + char mark; + __le32 list_end = FOTG210_LIST_END(fotg210); + struct fotg210_qh_hw *hw = qh->hw; + + if (hw->hw_qtd_next == list_end) /* NEC does this */ + mark = '@'; + else + mark = token_mark(fotg210, hw->hw_token); + if (mark == '/') { /* qh_alt_next controls qh advance? */ + if ((hw->hw_alt_next & QTD_MASK(fotg210)) + == fotg210->async->hw->hw_alt_next) + mark = '#'; /* blocked */ + else if (hw->hw_alt_next == list_end) + mark = '.'; /* use hw_qtd_next */ + /* else alt_next points to some other qtd */ + } + scratch = hc32_to_cpup(fotg210, &hw->hw_info1); + hw_curr = (mark == '*') ? hc32_to_cpup(fotg210, &hw->hw_current) : 0; + temp = scnprintf(next, size, + "qh/%p dev%d %cs ep%d %08x %08x(%08x%c %s nak%d)", + qh, scratch & 0x007f, + speed_char(scratch), + (scratch >> 8) & 0x000f, + scratch, hc32_to_cpup(fotg210, &hw->hw_info2), + hc32_to_cpup(fotg210, &hw->hw_token), mark, + (cpu_to_hc32(fotg210, QTD_TOGGLE) & hw->hw_token) + ? "data1" : "data0", + (hc32_to_cpup(fotg210, &hw->hw_alt_next) >> 1) & 0x0f); + size -= temp; + next += temp; + + /* hc may be modifying the list as we read it ... */ + list_for_each_entry(td, &qh->qtd_list, qtd_list) { + scratch = hc32_to_cpup(fotg210, &td->hw_token); + mark = ' '; + if (hw_curr == td->qtd_dma) + mark = '*'; + else if (hw->hw_qtd_next == cpu_to_hc32(fotg210, td->qtd_dma)) + mark = '+'; + else if (QTD_LENGTH(scratch)) { + if (td->hw_alt_next == fotg210->async->hw->hw_alt_next) + mark = '#'; + else if (td->hw_alt_next != list_end) + mark = '/'; + } + temp = snprintf(next, size, + "\n\t%p%c%s len=%d %08x urb %p", + td, mark, ({ char *tmp; + switch ((scratch>>8)&0x03) { + case 0: + tmp = "out"; + break; + case 1: + tmp = "in"; + break; + case 2: + tmp = "setup"; + break; + default: + tmp = "?"; + break; + } tmp; }), + (scratch >> 16) & 0x7fff, + scratch, + td->urb); + if (size < temp) + temp = size; + size -= temp; + next += temp; + if (temp == size) + goto done; + } + + temp = snprintf(next, size, "\n"); + if (size < temp) + temp = size; + size -= temp; + next += temp; + +done: + *sizep = size; + *nextp = next; +} + +static ssize_t fill_async_buffer(struct debug_buffer *buf) +{ + struct usb_hcd *hcd; + struct fotg210_hcd *fotg210; + unsigned long flags; + unsigned temp, size; + char *next; + struct fotg210_qh *qh; + + hcd = bus_to_hcd(buf->bus); + fotg210 = hcd_to_fotg210(hcd); + next = buf->output_buf; + size = buf->alloc_size; + + *next = 0; + + /* dumps a snapshot of the async schedule. + * usually empty except for long-term bulk reads, or head. + * one QH per line, and TDs we know about + */ + spin_lock_irqsave(&fotg210->lock, flags); + for (qh = fotg210->async->qh_next.qh; size > 0 && qh; + qh = qh->qh_next.qh) + qh_lines(fotg210, qh, &next, &size); + if (fotg210->async_unlink && size > 0) { + temp = scnprintf(next, size, "\nunlink =\n"); + size -= temp; + next += temp; + + for (qh = fotg210->async_unlink; size > 0 && qh; + qh = qh->unlink_next) + qh_lines(fotg210, qh, &next, &size); + } + spin_unlock_irqrestore(&fotg210->lock, flags); + + return strlen(buf->output_buf); +} + +#define DBG_SCHED_LIMIT 64 +static ssize_t fill_periodic_buffer(struct debug_buffer *buf) +{ + struct usb_hcd *hcd; + struct fotg210_hcd *fotg210; + unsigned long flags; + union fotg210_shadow p, *seen; + unsigned temp, size, seen_count; + char *next; + unsigned i; + __hc32 tag; + + seen = kmalloc(DBG_SCHED_LIMIT * sizeof(*seen), GFP_ATOMIC); + if (!seen) + return 0; + seen_count = 0; + + hcd = bus_to_hcd(buf->bus); + fotg210 = hcd_to_fotg210(hcd); + next = buf->output_buf; + size = buf->alloc_size; + + temp = scnprintf(next, size, "size = %d\n", fotg210->periodic_size); + size -= temp; + next += temp; + + /* dump a snapshot of the periodic schedule. + * iso changes, interrupt usually doesn't. + */ + spin_lock_irqsave(&fotg210->lock, flags); + for (i = 0; i < fotg210->periodic_size; i++) { + p = fotg210->pshadow[i]; + if (likely(!p.ptr)) + continue; + tag = Q_NEXT_TYPE(fotg210, fotg210->periodic[i]); + + temp = scnprintf(next, size, "%4d: ", i); + size -= temp; + next += temp; + + do { + struct fotg210_qh_hw *hw; + + switch (hc32_to_cpu(fotg210, tag)) { + case Q_TYPE_QH: + hw = p.qh->hw; + temp = scnprintf(next, size, " qh%d-%04x/%p", + p.qh->period, + hc32_to_cpup(fotg210, + &hw->hw_info2) + /* uframe masks */ + & (QH_CMASK | QH_SMASK), + p.qh); + size -= temp; + next += temp; + /* don't repeat what follows this qh */ + for (temp = 0; temp < seen_count; temp++) { + if (seen[temp].ptr != p.ptr) + continue; + if (p.qh->qh_next.ptr) { + temp = scnprintf(next, size, + " ..."); + size -= temp; + next += temp; + } + break; + } + /* show more info the first time around */ + if (temp == seen_count) { + u32 scratch = hc32_to_cpup(fotg210, + &hw->hw_info1); + struct fotg210_qtd *qtd; + char *type = ""; + + /* count tds, get ep direction */ + temp = 0; + list_for_each_entry(qtd, + &p.qh->qtd_list, + qtd_list) { + temp++; + switch (0x03 & (hc32_to_cpu( + fotg210, + qtd->hw_token) >> 8)) { + case 0: + type = "out"; + continue; + case 1: + type = "in"; + continue; + } + } + + temp = scnprintf(next, size, + "(%c%d ep%d%s " + "[%d/%d] q%d p%d)", + speed_char(scratch), + scratch & 0x007f, + (scratch >> 8) & 0x000f, type, + p.qh->usecs, p.qh->c_usecs, + temp, + 0x7ff & (scratch >> 16)); + + if (seen_count < DBG_SCHED_LIMIT) + seen[seen_count++].qh = p.qh; + } else + temp = 0; + tag = Q_NEXT_TYPE(fotg210, hw->hw_next); + p = p.qh->qh_next; + break; + case Q_TYPE_FSTN: + temp = scnprintf(next, size, + " fstn-%8x/%p", p.fstn->hw_prev, + p.fstn); + tag = Q_NEXT_TYPE(fotg210, p.fstn->hw_next); + p = p.fstn->fstn_next; + break; + case Q_TYPE_ITD: + temp = scnprintf(next, size, + " itd/%p", p.itd); + tag = Q_NEXT_TYPE(fotg210, p.itd->hw_next); + p = p.itd->itd_next; + break; + } + size -= temp; + next += temp; + } while (p.ptr); + + temp = scnprintf(next, size, "\n"); + size -= temp; + next += temp; + } + spin_unlock_irqrestore(&fotg210->lock, flags); + kfree(seen); + + return buf->alloc_size - size; +} +#undef DBG_SCHED_LIMIT + +static const char *rh_state_string(struct fotg210_hcd *fotg210) +{ + switch (fotg210->rh_state) { + case FOTG210_RH_HALTED: + return "halted"; + case FOTG210_RH_SUSPENDED: + return "suspended"; + case FOTG210_RH_RUNNING: + return "running"; + case FOTG210_RH_STOPPING: + return "stopping"; + } + return "?"; +} + +static ssize_t fill_registers_buffer(struct debug_buffer *buf) +{ + struct usb_hcd *hcd; + struct fotg210_hcd *fotg210; + unsigned long flags; + unsigned temp, size, i; + char *next, scratch[80]; + static const char fmt[] = "%*s\n"; + static const char label[] = ""; + + hcd = bus_to_hcd(buf->bus); + fotg210 = hcd_to_fotg210(hcd); + next = buf->output_buf; + size = buf->alloc_size; + + spin_lock_irqsave(&fotg210->lock, flags); + + if (!HCD_HW_ACCESSIBLE(hcd)) { + size = scnprintf(next, size, + "bus %s, device %s\n" + "%s\n" + "SUSPENDED(no register access)\n", + hcd->self.controller->bus->name, + dev_name(hcd->self.controller), + hcd->product_desc); + goto done; + } + + /* Capability Registers */ + i = HC_VERSION(fotg210, fotg210_readl(fotg210, + &fotg210->caps->hc_capbase)); + temp = scnprintf(next, size, + "bus %s, device %s\n" + "%s\n" + "EHCI %x.%02x, rh state %s\n", + hcd->self.controller->bus->name, + dev_name(hcd->self.controller), + hcd->product_desc, + i >> 8, i & 0x0ff, rh_state_string(fotg210)); + size -= temp; + next += temp; + + /* FIXME interpret both types of params */ + i = fotg210_readl(fotg210, &fotg210->caps->hcs_params); + temp = scnprintf(next, size, "structural params 0x%08x\n", i); + size -= temp; + next += temp; + + i = fotg210_readl(fotg210, &fotg210->caps->hcc_params); + temp = scnprintf(next, size, "capability params 0x%08x\n", i); + size -= temp; + next += temp; + + /* Operational Registers */ + temp = dbg_status_buf(scratch, sizeof(scratch), label, + fotg210_readl(fotg210, &fotg210->regs->status)); + temp = scnprintf(next, size, fmt, temp, scratch); + size -= temp; + next += temp; + + temp = dbg_command_buf(scratch, sizeof(scratch), label, + fotg210_readl(fotg210, &fotg210->regs->command)); + temp = scnprintf(next, size, fmt, temp, scratch); + size -= temp; + next += temp; + + temp = dbg_intr_buf(scratch, sizeof(scratch), label, + fotg210_readl(fotg210, &fotg210->regs->intr_enable)); + temp = scnprintf(next, size, fmt, temp, scratch); + size -= temp; + next += temp; + + temp = scnprintf(next, size, "uframe %04x\n", + fotg210_read_frame_index(fotg210)); + size -= temp; + next += temp; + + if (fotg210->async_unlink) { + temp = scnprintf(next, size, "async unlink qh %p\n", + fotg210->async_unlink); + size -= temp; + next += temp; + } + +#ifdef FOTG210_STATS + temp = scnprintf(next, size, + "irq normal %ld err %ld iaa %ld(lost %ld)\n", + fotg210->stats.normal, fotg210->stats.error, fotg210->stats.iaa, + fotg210->stats.lost_iaa); + size -= temp; + next += temp; + + temp = scnprintf(next, size, "complete %ld unlink %ld\n", + fotg210->stats.complete, fotg210->stats.unlink); + size -= temp; + next += temp; +#endif + +done: + spin_unlock_irqrestore(&fotg210->lock, flags); + + return buf->alloc_size - size; +} + +static struct debug_buffer *alloc_buffer(struct usb_bus *bus, + ssize_t (*fill_func)(struct debug_buffer *)) +{ + struct debug_buffer *buf; + + buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL); + + if (buf) { + buf->bus = bus; + buf->fill_func = fill_func; + mutex_init(&buf->mutex); + buf->alloc_size = PAGE_SIZE; + } + + return buf; +} + +static int fill_buffer(struct debug_buffer *buf) +{ + int ret = 0; + + if (!buf->output_buf) + buf->output_buf = vmalloc(buf->alloc_size); + + if (!buf->output_buf) { + ret = -ENOMEM; + goto out; + } + + ret = buf->fill_func(buf); + + if (ret >= 0) { + buf->count = ret; + ret = 0; + } + +out: + return ret; +} + +static ssize_t debug_output(struct file *file, char __user *user_buf, + size_t len, loff_t *offset) +{ + struct debug_buffer *buf = file->private_data; + int ret = 0; + + mutex_lock(&buf->mutex); + if (buf->count == 0) { + ret = fill_buffer(buf); + if (ret != 0) { + mutex_unlock(&buf->mutex); + goto out; + } + } + mutex_unlock(&buf->mutex); + + ret = simple_read_from_buffer(user_buf, len, offset, + buf->output_buf, buf->count); + +out: + return ret; + +} + +static int debug_close(struct inode *inode, struct file *file) +{ + struct debug_buffer *buf = file->private_data; + + if (buf) { + vfree(buf->output_buf); + kfree(buf); + } + + return 0; +} +static int debug_async_open(struct inode *inode, struct file *file) +{ + file->private_data = alloc_buffer(inode->i_private, fill_async_buffer); + + return file->private_data ? 0 : -ENOMEM; +} + +static int debug_periodic_open(struct inode *inode, struct file *file) +{ + struct debug_buffer *buf; + buf = alloc_buffer(inode->i_private, fill_periodic_buffer); + if (!buf) + return -ENOMEM; + + buf->alloc_size = (sizeof(void *) == 4 ? 6 : 8)*PAGE_SIZE; + file->private_data = buf; + return 0; +} + +static int debug_registers_open(struct inode *inode, struct file *file) +{ + file->private_data = alloc_buffer(inode->i_private, + fill_registers_buffer); + + return file->private_data ? 0 : -ENOMEM; +} + +static inline void create_debug_files(struct fotg210_hcd *fotg210) +{ + struct usb_bus *bus = &fotg210_to_hcd(fotg210)->self; + + fotg210->debug_dir = debugfs_create_dir(bus->bus_name, + fotg210_debug_root); + if (!fotg210->debug_dir) + return; + + if (!debugfs_create_file("async", S_IRUGO, fotg210->debug_dir, bus, + &debug_async_fops)) + goto file_error; + + if (!debugfs_create_file("periodic", S_IRUGO, fotg210->debug_dir, bus, + &debug_periodic_fops)) + goto file_error; + + if (!debugfs_create_file("registers", S_IRUGO, fotg210->debug_dir, bus, + &debug_registers_fops)) + goto file_error; + + return; + +file_error: + debugfs_remove_recursive(fotg210->debug_dir); +} + +static inline void remove_debug_files(struct fotg210_hcd *fotg210) +{ + debugfs_remove_recursive(fotg210->debug_dir); +} + +#endif /* STUB_DEBUG_FILES */ +/*-------------------------------------------------------------------------*/ + +/* + * handshake - spin reading hc until handshake completes or fails + * @ptr: address of hc register to be read + * @mask: bits to look at in result of read + * @done: value of those bits when handshake succeeds + * @usec: timeout in microseconds + * + * Returns negative errno, or zero on success + * + * Success happens when the "mask" bits have the specified value (hardware + * handshake done). There are two failure modes: "usec" have passed (major + * hardware flakeout), or the register reads as all-ones (hardware removed). + * + * That last failure should_only happen in cases like physical cardbus eject + * before driver shutdown. But it also seems to be caused by bugs in cardbus + * bridge shutdown: shutting down the bridge before the devices using it. + */ +static int handshake(struct fotg210_hcd *fotg210, void __iomem *ptr, + u32 mask, u32 done, int usec) +{ + u32 result; + + do { + result = fotg210_readl(fotg210, ptr); + if (result == ~(u32)0) /* card removed */ + return -ENODEV; + result &= mask; + if (result == done) + return 0; + udelay(1); + usec--; + } while (usec > 0); + return -ETIMEDOUT; +} + +/* + * Force HC to halt state from unknown (EHCI spec section 2.3). + * Must be called with interrupts enabled and the lock not held. + */ +static int fotg210_halt(struct fotg210_hcd *fotg210) +{ + u32 temp; + + spin_lock_irq(&fotg210->lock); + + /* disable any irqs left enabled by previous code */ + fotg210_writel(fotg210, 0, &fotg210->regs->intr_enable); + + /* + * This routine gets called during probe before fotg210->command + * has been initialized, so we can't rely on its value. + */ + fotg210->command &= ~CMD_RUN; + temp = fotg210_readl(fotg210, &fotg210->regs->command); + temp &= ~(CMD_RUN | CMD_IAAD); + fotg210_writel(fotg210, temp, &fotg210->regs->command); + + spin_unlock_irq(&fotg210->lock); + synchronize_irq(fotg210_to_hcd(fotg210)->irq); + + return handshake(fotg210, &fotg210->regs->status, + STS_HALT, STS_HALT, 16 * 125); +} + +/* + * Reset a non-running (STS_HALT == 1) controller. + * Must be called with interrupts enabled and the lock not held. + */ +static int fotg210_reset(struct fotg210_hcd *fotg210) +{ + int retval; + u32 command = fotg210_readl(fotg210, &fotg210->regs->command); + + /* If the EHCI debug controller is active, special care must be + * taken before and after a host controller reset */ + if (fotg210->debug && !dbgp_reset_prep(fotg210_to_hcd(fotg210))) + fotg210->debug = NULL; + + command |= CMD_RESET; + dbg_cmd(fotg210, "reset", command); + fotg210_writel(fotg210, command, &fotg210->regs->command); + fotg210->rh_state = FOTG210_RH_HALTED; + fotg210->next_statechange = jiffies; + retval = handshake(fotg210, &fotg210->regs->command, + CMD_RESET, 0, 250 * 1000); + + if (retval) + return retval; + + if (fotg210->debug) + dbgp_external_startup(fotg210_to_hcd(fotg210)); + + fotg210->port_c_suspend = fotg210->suspended_ports = + fotg210->resuming_ports = 0; + return retval; +} + +/* + * Idle the controller (turn off the schedules). + * Must be called with interrupts enabled and the lock not held. + */ +static void fotg210_quiesce(struct fotg210_hcd *fotg210) +{ + u32 temp; + + if (fotg210->rh_state != FOTG210_RH_RUNNING) + return; + + /* wait for any schedule enables/disables to take effect */ + temp = (fotg210->command << 10) & (STS_ASS | STS_PSS); + handshake(fotg210, &fotg210->regs->status, STS_ASS | STS_PSS, temp, + 16 * 125); + + /* then disable anything that's still active */ + spin_lock_irq(&fotg210->lock); + fotg210->command &= ~(CMD_ASE | CMD_PSE); + fotg210_writel(fotg210, fotg210->command, &fotg210->regs->command); + spin_unlock_irq(&fotg210->lock); + + /* hardware can take 16 microframes to turn off ... */ + handshake(fotg210, &fotg210->regs->status, STS_ASS | STS_PSS, 0, + 16 * 125); +} + +/*-------------------------------------------------------------------------*/ + +static void end_unlink_async(struct fotg210_hcd *fotg210); +static void unlink_empty_async(struct fotg210_hcd *fotg210); +static void fotg210_work(struct fotg210_hcd *fotg210); +static void start_unlink_intr(struct fotg210_hcd *fotg210, + struct fotg210_qh *qh); +static void end_unlink_intr(struct fotg210_hcd *fotg210, struct fotg210_qh *qh); + +/*-------------------------------------------------------------------------*/ + +/* Set a bit in the USBCMD register */ +static void fotg210_set_command_bit(struct fotg210_hcd *fotg210, u32 bit) +{ + fotg210->command |= bit; + fotg210_writel(fotg210, fotg210->command, &fotg210->regs->command); + + /* unblock posted write */ + fotg210_readl(fotg210, &fotg210->regs->command); +} + +/* Clear a bit in the USBCMD register */ +static void fotg210_clear_command_bit(struct fotg210_hcd *fotg210, u32 bit) +{ + fotg210->command &= ~bit; + fotg210_writel(fotg210, fotg210->command, &fotg210->regs->command); + + /* unblock posted write */ + fotg210_readl(fotg210, &fotg210->regs->command); +} + +/*-------------------------------------------------------------------------*/ + +/* + * EHCI timer support... Now using hrtimers. + * + * Lots of different events are triggered from fotg210->hrtimer. Whenever + * the timer routine runs, it checks each possible event; events that are + * currently enabled and whose expiration time has passed get handled. + * The set of enabled events is stored as a collection of bitflags in + * fotg210->enabled_hrtimer_events, and they are numbered in order of + * increasing delay values (ranging between 1 ms and 100 ms). + * + * Rather than implementing a sorted list or tree of all pending events, + * we keep track only of the lowest-numbered pending event, in + * fotg210->next_hrtimer_event. Whenever fotg210->hrtimer gets restarted, its + * expiration time is set to the timeout value for this event. + * + * As a result, events might not get handled right away; the actual delay + * could be anywhere up to twice the requested delay. This doesn't + * matter, because none of the events are especially time-critical. The + * ones that matter most all have a delay of 1 ms, so they will be + * handled after 2 ms at most, which is okay. In addition to this, we + * allow for an expiration range of 1 ms. + */ + +/* + * Delay lengths for the hrtimer event types. + * Keep this list sorted by delay length, in the same order as + * the event types indexed by enum fotg210_hrtimer_event in fotg210.h. + */ +static unsigned event_delays_ns[] = { + 1 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_POLL_ASS */ + 1 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_POLL_PSS */ + 1 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_POLL_DEAD */ + 1125 * NSEC_PER_USEC, /* FOTG210_HRTIMER_UNLINK_INTR */ + 2 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_FREE_ITDS */ + 6 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_ASYNC_UNLINKS */ + 10 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_IAA_WATCHDOG */ + 10 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_DISABLE_PERIODIC */ + 15 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_DISABLE_ASYNC */ + 100 * NSEC_PER_MSEC, /* FOTG210_HRTIMER_IO_WATCHDOG */ +}; + +/* Enable a pending hrtimer event */ +static void fotg210_enable_event(struct fotg210_hcd *fotg210, unsigned event, + bool resched) +{ + ktime_t *timeout = &fotg210->hr_timeouts[event]; + + if (resched) + *timeout = ktime_add(ktime_get(), + ktime_set(0, event_delays_ns[event])); + fotg210->enabled_hrtimer_events |= (1 << event); + + /* Track only the lowest-numbered pending event */ + if (event < fotg210->next_hrtimer_event) { + fotg210->next_hrtimer_event = event; + hrtimer_start_range_ns(&fotg210->hrtimer, *timeout, + NSEC_PER_MSEC, HRTIMER_MODE_ABS); + } +} + + +/* Poll the STS_ASS status bit; see when it agrees with CMD_ASE */ +static void fotg210_poll_ASS(struct fotg210_hcd *fotg210) +{ + unsigned actual, want; + + /* Don't enable anything if the controller isn't running (e.g., died) */ + if (fotg210->rh_state != FOTG210_RH_RUNNING) + return; + + want = (fotg210->command & CMD_ASE) ? STS_ASS : 0; + actual = fotg210_readl(fotg210, &fotg210->regs->status) & STS_ASS; + + if (want != actual) { + + /* Poll again later, but give up after about 20 ms */ + if (fotg210->ASS_poll_count++ < 20) { + fotg210_enable_event(fotg210, FOTG210_HRTIMER_POLL_ASS, + true); + return; + } + fotg210_dbg(fotg210, "Waited too long for the async schedule status (%x/%x), giving up\n", + want, actual); + } + fotg210->ASS_poll_count = 0; + + /* The status is up-to-date; restart or stop the schedule as needed */ + if (want == 0) { /* Stopped */ + if (fotg210->async_count > 0) + fotg210_set_command_bit(fotg210, CMD_ASE); + + } else { /* Running */ + if (fotg210->async_count == 0) { + + /* Turn off the schedule after a while */ + fotg210_enable_event(fotg210, + FOTG210_HRTIMER_DISABLE_ASYNC, + true); + } + } +} + +/* Turn off the async schedule after a brief delay */ +static void fotg210_disable_ASE(struct fotg210_hcd *fotg210) +{ + fotg210_clear_command_bit(fotg210, CMD_ASE); +} + + +/* Poll the STS_PSS status bit; see when it agrees with CMD_PSE */ +static void fotg210_poll_PSS(struct fotg210_hcd *fotg210) +{ + unsigned actual, want; + + /* Don't do anything if the controller isn't running (e.g., died) */ + if (fotg210->rh_state != FOTG210_RH_RUNNING) + return; + + want = (fotg210->command & CMD_PSE) ? STS_PSS : 0; + actual = fotg210_readl(fotg210, &fotg210->regs->status) & STS_PSS; + + if (want != actual) { + + /* Poll again later, but give up after about 20 ms */ + if (fotg210->PSS_poll_count++ < 20) { + fotg210_enable_event(fotg210, FOTG210_HRTIMER_POLL_PSS, + true); + return; + } + fotg210_dbg(fotg210, "Waited too long for the periodic schedule status (%x/%x), giving up\n", + want, actual); + } + fotg210->PSS_poll_count = 0; + + /* The status is up-to-date; restart or stop the schedule as needed */ + if (want == 0) { /* Stopped */ + if (fotg210->periodic_count > 0) + fotg210_set_command_bit(fotg210, CMD_PSE); + + } else { /* Running */ + if (fotg210->periodic_count == 0) { + + /* Turn off the schedule after a while */ + fotg210_enable_event(fotg210, + FOTG210_HRTIMER_DISABLE_PERIODIC, + true); + } + } +} + +/* Turn off the periodic schedule after a brief delay */ +static void fotg210_disable_PSE(struct fotg210_hcd *fotg210) +{ + fotg210_clear_command_bit(fotg210, CMD_PSE); +} + + +/* Poll the STS_HALT status bit; see when a dead controller stops */ +static void fotg210_handle_controller_death(struct fotg210_hcd *fotg210) +{ + if (!(fotg210_readl(fotg210, &fotg210->regs->status) & STS_HALT)) { + + /* Give up after a few milliseconds */ + if (fotg210->died_poll_count++ < 5) { + /* Try again later */ + fotg210_enable_event(fotg210, + FOTG210_HRTIMER_POLL_DEAD, true); + return; + } + fotg210_warn(fotg210, "Waited too long for the controller to stop, giving up\n"); + } + + /* Clean up the mess */ + fotg210->rh_state = FOTG210_RH_HALTED; + fotg210_writel(fotg210, 0, &fotg210->regs->intr_enable); + fotg210_work(fotg210); + end_unlink_async(fotg210); + + /* Not in process context, so don't try to reset the controller */ +} + + +/* Handle unlinked interrupt QHs once they are gone from the hardware */ +static void fotg210_handle_intr_unlinks(struct fotg210_hcd *fotg210) +{ + bool stopped = (fotg210->rh_state < FOTG210_RH_RUNNING); + + /* + * Process all the QHs on the intr_unlink list that were added + * before the current unlink cycle began. The list is in + * temporal order, so stop when we reach the first entry in the + * current cycle. But if the root hub isn't running then + * process all the QHs on the list. + */ + fotg210->intr_unlinking = true; + while (fotg210->intr_unlink) { + struct fotg210_qh *qh = fotg210->intr_unlink; + + if (!stopped && qh->unlink_cycle == fotg210->intr_unlink_cycle) + break; + fotg210->intr_unlink = qh->unlink_next; + qh->unlink_next = NULL; + end_unlink_intr(fotg210, qh); + } + + /* Handle remaining entries later */ + if (fotg210->intr_unlink) { + fotg210_enable_event(fotg210, FOTG210_HRTIMER_UNLINK_INTR, + true); + ++fotg210->intr_unlink_cycle; + } + fotg210->intr_unlinking = false; +} + + +/* Start another free-iTDs/siTDs cycle */ +static void start_free_itds(struct fotg210_hcd *fotg210) +{ + if (!(fotg210->enabled_hrtimer_events & + BIT(FOTG210_HRTIMER_FREE_ITDS))) { + fotg210->last_itd_to_free = list_entry( + fotg210->cached_itd_list.prev, + struct fotg210_itd, itd_list); + fotg210_enable_event(fotg210, FOTG210_HRTIMER_FREE_ITDS, true); + } +} + +/* Wait for controller to stop using old iTDs and siTDs */ +static void end_free_itds(struct fotg210_hcd *fotg210) +{ + struct fotg210_itd *itd, *n; + + if (fotg210->rh_state < FOTG210_RH_RUNNING) + fotg210->last_itd_to_free = NULL; + + list_for_each_entry_safe(itd, n, &fotg210->cached_itd_list, itd_list) { + list_del(&itd->itd_list); + dma_pool_free(fotg210->itd_pool, itd, itd->itd_dma); + if (itd == fotg210->last_itd_to_free) + break; + } + + if (!list_empty(&fotg210->cached_itd_list)) + start_free_itds(fotg210); +} + + +/* Handle lost (or very late) IAA interrupts */ +static void fotg210_iaa_watchdog(struct fotg210_hcd *fotg210) +{ + if (fotg210->rh_state != FOTG210_RH_RUNNING) + return; + + /* + * Lost IAA irqs wedge things badly; seen first with a vt8235. + * So we need this watchdog, but must protect it against both + * (a) SMP races against real IAA firing and retriggering, and + * (b) clean HC shutdown, when IAA watchdog was pending. + */ + if (fotg210->async_iaa) { + u32 cmd, status; + + /* If we get here, IAA is *REALLY* late. It's barely + * conceivable that the system is so busy that CMD_IAAD + * is still legitimately set, so let's be sure it's + * clear before we read STS_IAA. (The HC should clear + * CMD_IAAD when it sets STS_IAA.) + */ + cmd = fotg210_readl(fotg210, &fotg210->regs->command); + + /* + * If IAA is set here it either legitimately triggered + * after the watchdog timer expired (_way_ late, so we'll + * still count it as lost) ... or a silicon erratum: + * - VIA seems to set IAA without triggering the IRQ; + * - IAAD potentially cleared without setting IAA. + */ + status = fotg210_readl(fotg210, &fotg210->regs->status); + if ((status & STS_IAA) || !(cmd & CMD_IAAD)) { + COUNT(fotg210->stats.lost_iaa); + fotg210_writel(fotg210, STS_IAA, + &fotg210->regs->status); + } + + fotg210_vdbg(fotg210, "IAA watchdog: status %x cmd %x\n", + status, cmd); + end_unlink_async(fotg210); + } +} + + +/* Enable the I/O watchdog, if appropriate */ +static void turn_on_io_watchdog(struct fotg210_hcd *fotg210) +{ + /* Not needed if the controller isn't running or it's already enabled */ + if (fotg210->rh_state != FOTG210_RH_RUNNING || + (fotg210->enabled_hrtimer_events & + BIT(FOTG210_HRTIMER_IO_WATCHDOG))) + return; + + /* + * Isochronous transfers always need the watchdog. + * For other sorts we use it only if the flag is set. + */ + if (fotg210->isoc_count > 0 || (fotg210->need_io_watchdog && + fotg210->async_count + fotg210->intr_count > 0)) + fotg210_enable_event(fotg210, FOTG210_HRTIMER_IO_WATCHDOG, + true); +} + + +/* + * Handler functions for the hrtimer event types. + * Keep this array in the same order as the event types indexed by + * enum fotg210_hrtimer_event in fotg210.h. + */ +static void (*event_handlers[])(struct fotg210_hcd *) = { + fotg210_poll_ASS, /* FOTG210_HRTIMER_POLL_ASS */ + fotg210_poll_PSS, /* FOTG210_HRTIMER_POLL_PSS */ + fotg210_handle_controller_death, /* FOTG210_HRTIMER_POLL_DEAD */ + fotg210_handle_intr_unlinks, /* FOTG210_HRTIMER_UNLINK_INTR */ + end_free_itds, /* FOTG210_HRTIMER_FREE_ITDS */ + unlink_empty_async, /* FOTG210_HRTIMER_ASYNC_UNLINKS */ + fotg210_iaa_watchdog, /* FOTG210_HRTIMER_IAA_WATCHDOG */ + fotg210_disable_PSE, /* FOTG210_HRTIMER_DISABLE_PERIODIC */ + fotg210_disable_ASE, /* FOTG210_HRTIMER_DISABLE_ASYNC */ + fotg210_work, /* FOTG210_HRTIMER_IO_WATCHDOG */ +}; + +static enum hrtimer_restart fotg210_hrtimer_func(struct hrtimer *t) +{ + struct fotg210_hcd *fotg210 = + container_of(t, struct fotg210_hcd, hrtimer); + ktime_t now; + unsigned long events; + unsigned long flags; + unsigned e; + + spin_lock_irqsave(&fotg210->lock, flags); + + events = fotg210->enabled_hrtimer_events; + fotg210->enabled_hrtimer_events = 0; + fotg210->next_hrtimer_event = FOTG210_HRTIMER_NO_EVENT; + + /* + * Check each pending event. If its time has expired, handle + * the event; otherwise re-enable it. + */ + now = ktime_get(); + for_each_set_bit(e, &events, FOTG210_HRTIMER_NUM_EVENTS) { + if (now.tv64 >= fotg210->hr_timeouts[e].tv64) + event_handlers[e](fotg210); + else + fotg210_enable_event(fotg210, e, false); + } + + spin_unlock_irqrestore(&fotg210->lock, flags); + return HRTIMER_NORESTART; +} + +/*-------------------------------------------------------------------------*/ + +#define fotg210_bus_suspend NULL +#define fotg210_bus_resume NULL + +/*-------------------------------------------------------------------------*/ + +static int check_reset_complete( + struct fotg210_hcd *fotg210, + int index, + u32 __iomem *status_reg, + int port_status +) { + if (!(port_status & PORT_CONNECT)) + return port_status; + + /* if reset finished and it's still not enabled -- handoff */ + if (!(port_status & PORT_PE)) { + /* with integrated TT, there's nobody to hand it to! */ + fotg210_dbg(fotg210, + "Failed to enable port %d on root hub TT\n", + index+1); + return port_status; + } else { + fotg210_dbg(fotg210, "port %d reset complete, port enabled\n", + index + 1); + } + + return port_status; +} + +/*-------------------------------------------------------------------------*/ + + +/* build "status change" packet (one or two bytes) from HC registers */ + +static int +fotg210_hub_status_data(struct usb_hcd *hcd, char *buf) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + u32 temp, status; + u32 mask; + int retval = 1; + unsigned long flags; + + /* init status to no-changes */ + buf[0] = 0; + + /* Inform the core about resumes-in-progress by returning + * a non-zero value even if there are no status changes. + */ + status = fotg210->resuming_ports; + + mask = PORT_CSC | PORT_PEC; + /* PORT_RESUME from hardware ~= PORT_STAT_C_SUSPEND */ + + /* no hub change reports (bit 0) for now (power, ...) */ + + /* port N changes (bit N)? */ + spin_lock_irqsave(&fotg210->lock, flags); + + temp = fotg210_readl(fotg210, &fotg210->regs->port_status); + + /* + * Return status information even for ports with OWNER set. + * Otherwise khubd wouldn't see the disconnect event when a + * high-speed device is switched over to the companion + * controller by the user. + */ + + if ((temp & mask) != 0 || test_bit(0, &fotg210->port_c_suspend) + || (fotg210->reset_done[0] && time_after_eq( + jiffies, fotg210->reset_done[0]))) { + buf[0] |= 1 << 1; + status = STS_PCD; + } + /* FIXME autosuspend idle root hubs */ + spin_unlock_irqrestore(&fotg210->lock, flags); + return status ? retval : 0; +} + +/*-------------------------------------------------------------------------*/ + +static void +fotg210_hub_descriptor( + struct fotg210_hcd *fotg210, + struct usb_hub_descriptor *desc +) { + int ports = HCS_N_PORTS(fotg210->hcs_params); + u16 temp; + + desc->bDescriptorType = 0x29; + desc->bPwrOn2PwrGood = 10; /* fotg210 1.0, 2.3.9 says 20ms max */ + desc->bHubContrCurrent = 0; + + desc->bNbrPorts = ports; + temp = 1 + (ports / 8); + desc->bDescLength = 7 + 2 * temp; + + /* two bitmaps: ports removable, and usb 1.0 legacy PortPwrCtrlMask */ + memset(&desc->u.hs.DeviceRemovable[0], 0, temp); + memset(&desc->u.hs.DeviceRemovable[temp], 0xff, temp); + + temp = 0x0008; /* per-port overcurrent reporting */ + temp |= 0x0002; /* no power switching */ + desc->wHubCharacteristics = cpu_to_le16(temp); +} + +/*-------------------------------------------------------------------------*/ + +static int fotg210_hub_control( + struct usb_hcd *hcd, + u16 typeReq, + u16 wValue, + u16 wIndex, + char *buf, + u16 wLength +) { + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + int ports = HCS_N_PORTS(fotg210->hcs_params); + u32 __iomem *status_reg = &fotg210->regs->port_status; + u32 temp, temp1, status; + unsigned long flags; + int retval = 0; + unsigned selector; + + /* + * FIXME: support SetPortFeatures USB_PORT_FEAT_INDICATOR. + * HCS_INDICATOR may say we can change LEDs to off/amber/green. + * (track current state ourselves) ... blink for diagnostics, + * power, "this is the one", etc. EHCI spec supports this. + */ + + spin_lock_irqsave(&fotg210->lock, flags); + switch (typeReq) { + case ClearHubFeature: + switch (wValue) { + case C_HUB_LOCAL_POWER: + case C_HUB_OVER_CURRENT: + /* no hub-wide feature/status flags */ + break; + default: + goto error; + } + break; + case ClearPortFeature: + if (!wIndex || wIndex > ports) + goto error; + wIndex--; + temp = fotg210_readl(fotg210, status_reg); + temp &= ~PORT_RWC_BITS; + + /* + * Even if OWNER is set, so the port is owned by the + * companion controller, khubd needs to be able to clear + * the port-change status bits (especially + * USB_PORT_STAT_C_CONNECTION). + */ + + switch (wValue) { + case USB_PORT_FEAT_ENABLE: + fotg210_writel(fotg210, temp & ~PORT_PE, status_reg); + break; + case USB_PORT_FEAT_C_ENABLE: + fotg210_writel(fotg210, temp | PORT_PEC, status_reg); + break; + case USB_PORT_FEAT_SUSPEND: + if (temp & PORT_RESET) + goto error; + if (!(temp & PORT_SUSPEND)) + break; + if ((temp & PORT_PE) == 0) + goto error; + + /* resume signaling for 20 msec */ + fotg210_writel(fotg210, temp | PORT_RESUME, status_reg); + fotg210->reset_done[wIndex] = jiffies + + msecs_to_jiffies(20); + break; + case USB_PORT_FEAT_C_SUSPEND: + clear_bit(wIndex, &fotg210->port_c_suspend); + break; + case USB_PORT_FEAT_C_CONNECTION: + fotg210_writel(fotg210, temp | PORT_CSC, status_reg); + break; + case USB_PORT_FEAT_C_OVER_CURRENT: + fotg210_writel(fotg210, temp | OTGISR_OVC, + &fotg210->regs->otgisr); + break; + case USB_PORT_FEAT_C_RESET: + /* GetPortStatus clears reset */ + break; + default: + goto error; + } + fotg210_readl(fotg210, &fotg210->regs->command); + break; + case GetHubDescriptor: + fotg210_hub_descriptor(fotg210, (struct usb_hub_descriptor *) + buf); + break; + case GetHubStatus: + /* no hub-wide feature/status flags */ + memset(buf, 0, 4); + /*cpu_to_le32s ((u32 *) buf); */ + break; + case GetPortStatus: + if (!wIndex || wIndex > ports) + goto error; + wIndex--; + status = 0; + temp = fotg210_readl(fotg210, status_reg); + + /* wPortChange bits */ + if (temp & PORT_CSC) + status |= USB_PORT_STAT_C_CONNECTION << 16; + if (temp & PORT_PEC) + status |= USB_PORT_STAT_C_ENABLE << 16; + + temp1 = fotg210_readl(fotg210, &fotg210->regs->otgisr); + if (temp1 & OTGISR_OVC) + status |= USB_PORT_STAT_C_OVERCURRENT << 16; + + /* whoever resumes must GetPortStatus to complete it!! */ + if (temp & PORT_RESUME) { + + /* Remote Wakeup received? */ + if (!fotg210->reset_done[wIndex]) { + /* resume signaling for 20 msec */ + fotg210->reset_done[wIndex] = jiffies + + msecs_to_jiffies(20); + /* check the port again */ + mod_timer(&fotg210_to_hcd(fotg210)->rh_timer, + fotg210->reset_done[wIndex]); + } + + /* resume completed? */ + else if (time_after_eq(jiffies, + fotg210->reset_done[wIndex])) { + clear_bit(wIndex, &fotg210->suspended_ports); + set_bit(wIndex, &fotg210->port_c_suspend); + fotg210->reset_done[wIndex] = 0; + + /* stop resume signaling */ + temp = fotg210_readl(fotg210, status_reg); + fotg210_writel(fotg210, + temp & ~(PORT_RWC_BITS | PORT_RESUME), + status_reg); + clear_bit(wIndex, &fotg210->resuming_ports); + retval = handshake(fotg210, status_reg, + PORT_RESUME, 0, 2000 /* 2msec */); + if (retval != 0) { + fotg210_err(fotg210, + "port %d resume error %d\n", + wIndex + 1, retval); + goto error; + } + temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10)); + } + } + + /* whoever resets must GetPortStatus to complete it!! */ + if ((temp & PORT_RESET) + && time_after_eq(jiffies, + fotg210->reset_done[wIndex])) { + status |= USB_PORT_STAT_C_RESET << 16; + fotg210->reset_done[wIndex] = 0; + clear_bit(wIndex, &fotg210->resuming_ports); + + /* force reset to complete */ + fotg210_writel(fotg210, + temp & ~(PORT_RWC_BITS | PORT_RESET), + status_reg); + /* REVISIT: some hardware needs 550+ usec to clear + * this bit; seems too long to spin routinely... + */ + retval = handshake(fotg210, status_reg, + PORT_RESET, 0, 1000); + if (retval != 0) { + fotg210_err(fotg210, "port %d reset error %d\n", + wIndex + 1, retval); + goto error; + } + + /* see what we found out */ + temp = check_reset_complete(fotg210, wIndex, status_reg, + fotg210_readl(fotg210, status_reg)); + } + + if (!(temp & (PORT_RESUME|PORT_RESET))) { + fotg210->reset_done[wIndex] = 0; + clear_bit(wIndex, &fotg210->resuming_ports); + } + + /* transfer dedicated ports to the companion hc */ + if ((temp & PORT_CONNECT) && + test_bit(wIndex, &fotg210->companion_ports)) { + temp &= ~PORT_RWC_BITS; + fotg210_writel(fotg210, temp, status_reg); + fotg210_dbg(fotg210, "port %d --> companion\n", + wIndex + 1); + temp = fotg210_readl(fotg210, status_reg); + } + + /* + * Even if OWNER is set, there's no harm letting khubd + * see the wPortStatus values (they should all be 0 except + * for PORT_POWER anyway). + */ + + if (temp & PORT_CONNECT) { + status |= USB_PORT_STAT_CONNECTION; + status |= fotg210_port_speed(fotg210, temp); + } + if (temp & PORT_PE) + status |= USB_PORT_STAT_ENABLE; + + /* maybe the port was unsuspended without our knowledge */ + if (temp & (PORT_SUSPEND|PORT_RESUME)) { + status |= USB_PORT_STAT_SUSPEND; + } else if (test_bit(wIndex, &fotg210->suspended_ports)) { + clear_bit(wIndex, &fotg210->suspended_ports); + clear_bit(wIndex, &fotg210->resuming_ports); + fotg210->reset_done[wIndex] = 0; + if (temp & PORT_PE) + set_bit(wIndex, &fotg210->port_c_suspend); + } + + temp1 = fotg210_readl(fotg210, &fotg210->regs->otgisr); + if (temp1 & OTGISR_OVC) + status |= USB_PORT_STAT_OVERCURRENT; + if (temp & PORT_RESET) + status |= USB_PORT_STAT_RESET; + if (test_bit(wIndex, &fotg210->port_c_suspend)) + status |= USB_PORT_STAT_C_SUSPEND << 16; + +#ifndef VERBOSE_DEBUG + if (status & ~0xffff) /* only if wPortChange is interesting */ +#endif + dbg_port(fotg210, "GetStatus", wIndex + 1, temp); + put_unaligned_le32(status, buf); + break; + case SetHubFeature: + switch (wValue) { + case C_HUB_LOCAL_POWER: + case C_HUB_OVER_CURRENT: + /* no hub-wide feature/status flags */ + break; + default: + goto error; + } + break; + case SetPortFeature: + selector = wIndex >> 8; + wIndex &= 0xff; + + if (!wIndex || wIndex > ports) + goto error; + wIndex--; + temp = fotg210_readl(fotg210, status_reg); + temp &= ~PORT_RWC_BITS; + switch (wValue) { + case USB_PORT_FEAT_SUSPEND: + if ((temp & PORT_PE) == 0 + || (temp & PORT_RESET) != 0) + goto error; + + /* After above check the port must be connected. + * Set appropriate bit thus could put phy into low power + * mode if we have hostpc feature + */ + fotg210_writel(fotg210, temp | PORT_SUSPEND, + status_reg); + set_bit(wIndex, &fotg210->suspended_ports); + break; + case USB_PORT_FEAT_RESET: + if (temp & PORT_RESUME) + goto error; + /* line status bits may report this as low speed, + * which can be fine if this root hub has a + * transaction translator built in. + */ + fotg210_vdbg(fotg210, "port %d reset\n", wIndex + 1); + temp |= PORT_RESET; + temp &= ~PORT_PE; + + /* + * caller must wait, then call GetPortStatus + * usb 2.0 spec says 50 ms resets on root + */ + fotg210->reset_done[wIndex] = jiffies + + msecs_to_jiffies(50); + fotg210_writel(fotg210, temp, status_reg); + break; + + /* For downstream facing ports (these): one hub port is put + * into test mode according to USB2 11.24.2.13, then the hub + * must be reset (which for root hub now means rmmod+modprobe, + * or else system reboot). See EHCI 2.3.9 and 4.14 for info + * about the EHCI-specific stuff. + */ + case USB_PORT_FEAT_TEST: + if (!selector || selector > 5) + goto error; + spin_unlock_irqrestore(&fotg210->lock, flags); + fotg210_quiesce(fotg210); + spin_lock_irqsave(&fotg210->lock, flags); + + /* Put all enabled ports into suspend */ + temp = fotg210_readl(fotg210, status_reg) & + ~PORT_RWC_BITS; + if (temp & PORT_PE) + fotg210_writel(fotg210, temp | PORT_SUSPEND, + status_reg); + + spin_unlock_irqrestore(&fotg210->lock, flags); + fotg210_halt(fotg210); + spin_lock_irqsave(&fotg210->lock, flags); + + temp = fotg210_readl(fotg210, status_reg); + temp |= selector << 16; + fotg210_writel(fotg210, temp, status_reg); + break; + + default: + goto error; + } + fotg210_readl(fotg210, &fotg210->regs->command); + break; + + default: +error: + /* "stall" on error */ + retval = -EPIPE; + } + spin_unlock_irqrestore(&fotg210->lock, flags); + return retval; +} + +static void __maybe_unused fotg210_relinquish_port(struct usb_hcd *hcd, + int portnum) +{ + return; +} + +static int __maybe_unused fotg210_port_handed_over(struct usb_hcd *hcd, + int portnum) +{ + return 0; +} +/*-------------------------------------------------------------------------*/ +/* + * There's basically three types of memory: + * - data used only by the HCD ... kmalloc is fine + * - async and periodic schedules, shared by HC and HCD ... these + * need to use dma_pool or dma_alloc_coherent + * - driver buffers, read/written by HC ... single shot DMA mapped + * + * There's also "register" data (e.g. PCI or SOC), which is memory mapped. + * No memory seen by this driver is pageable. + */ + +/*-------------------------------------------------------------------------*/ + +/* Allocate the key transfer structures from the previously allocated pool */ + +static inline void fotg210_qtd_init(struct fotg210_hcd *fotg210, + struct fotg210_qtd *qtd, dma_addr_t dma) +{ + memset(qtd, 0, sizeof(*qtd)); + qtd->qtd_dma = dma; + qtd->hw_token = cpu_to_hc32(fotg210, QTD_STS_HALT); + qtd->hw_next = FOTG210_LIST_END(fotg210); + qtd->hw_alt_next = FOTG210_LIST_END(fotg210); + INIT_LIST_HEAD(&qtd->qtd_list); +} + +static struct fotg210_qtd *fotg210_qtd_alloc(struct fotg210_hcd *fotg210, + gfp_t flags) +{ + struct fotg210_qtd *qtd; + dma_addr_t dma; + + qtd = dma_pool_alloc(fotg210->qtd_pool, flags, &dma); + if (qtd != NULL) + fotg210_qtd_init(fotg210, qtd, dma); + + return qtd; +} + +static inline void fotg210_qtd_free(struct fotg210_hcd *fotg210, + struct fotg210_qtd *qtd) +{ + dma_pool_free(fotg210->qtd_pool, qtd, qtd->qtd_dma); +} + + +static void qh_destroy(struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{ + /* clean qtds first, and know this is not linked */ + if (!list_empty(&qh->qtd_list) || qh->qh_next.ptr) { + fotg210_dbg(fotg210, "unused qh not empty!\n"); + BUG(); + } + if (qh->dummy) + fotg210_qtd_free(fotg210, qh->dummy); + dma_pool_free(fotg210->qh_pool, qh->hw, qh->qh_dma); + kfree(qh); +} + +static struct fotg210_qh *fotg210_qh_alloc(struct fotg210_hcd *fotg210, + gfp_t flags) +{ + struct fotg210_qh *qh; + dma_addr_t dma; + + qh = kzalloc(sizeof(*qh), GFP_ATOMIC); + if (!qh) + goto done; + qh->hw = (struct fotg210_qh_hw *) + dma_pool_alloc(fotg210->qh_pool, flags, &dma); + if (!qh->hw) + goto fail; + memset(qh->hw, 0, sizeof(*qh->hw)); + qh->qh_dma = dma; + INIT_LIST_HEAD(&qh->qtd_list); + + /* dummy td enables safe urb queuing */ + qh->dummy = fotg210_qtd_alloc(fotg210, flags); + if (qh->dummy == NULL) { + fotg210_dbg(fotg210, "no dummy td\n"); + goto fail1; + } +done: + return qh; +fail1: + dma_pool_free(fotg210->qh_pool, qh->hw, qh->qh_dma); +fail: + kfree(qh); + return NULL; +} + +/*-------------------------------------------------------------------------*/ + +/* The queue heads and transfer descriptors are managed from pools tied + * to each of the "per device" structures. + * This is the initialisation and cleanup code. + */ + +static void fotg210_mem_cleanup(struct fotg210_hcd *fotg210) +{ + if (fotg210->async) + qh_destroy(fotg210, fotg210->async); + fotg210->async = NULL; + + if (fotg210->dummy) + qh_destroy(fotg210, fotg210->dummy); + fotg210->dummy = NULL; + + /* DMA consistent memory and pools */ + if (fotg210->qtd_pool) + dma_pool_destroy(fotg210->qtd_pool); + fotg210->qtd_pool = NULL; + + if (fotg210->qh_pool) { + dma_pool_destroy(fotg210->qh_pool); + fotg210->qh_pool = NULL; + } + + if (fotg210->itd_pool) + dma_pool_destroy(fotg210->itd_pool); + fotg210->itd_pool = NULL; + + if (fotg210->periodic) + dma_free_coherent(fotg210_to_hcd(fotg210)->self.controller, + fotg210->periodic_size * sizeof(u32), + fotg210->periodic, fotg210->periodic_dma); + fotg210->periodic = NULL; + + /* shadow periodic table */ + kfree(fotg210->pshadow); + fotg210->pshadow = NULL; +} + +/* remember to add cleanup code (above) if you add anything here */ +static int fotg210_mem_init(struct fotg210_hcd *fotg210, gfp_t flags) +{ + int i; + + /* QTDs for control/bulk/intr transfers */ + fotg210->qtd_pool = dma_pool_create("fotg210_qtd", + fotg210_to_hcd(fotg210)->self.controller, + sizeof(struct fotg210_qtd), + 32 /* byte alignment (for hw parts) */, + 4096 /* can't cross 4K */); + if (!fotg210->qtd_pool) + goto fail; + + /* QHs for control/bulk/intr transfers */ + fotg210->qh_pool = dma_pool_create("fotg210_qh", + fotg210_to_hcd(fotg210)->self.controller, + sizeof(struct fotg210_qh_hw), + 32 /* byte alignment (for hw parts) */, + 4096 /* can't cross 4K */); + if (!fotg210->qh_pool) + goto fail; + + fotg210->async = fotg210_qh_alloc(fotg210, flags); + if (!fotg210->async) + goto fail; + + /* ITD for high speed ISO transfers */ + fotg210->itd_pool = dma_pool_create("fotg210_itd", + fotg210_to_hcd(fotg210)->self.controller, + sizeof(struct fotg210_itd), + 64 /* byte alignment (for hw parts) */, + 4096 /* can't cross 4K */); + if (!fotg210->itd_pool) + goto fail; + + /* Hardware periodic table */ + fotg210->periodic = (__le32 *) + dma_alloc_coherent(fotg210_to_hcd(fotg210)->self.controller, + fotg210->periodic_size * sizeof(__le32), + &fotg210->periodic_dma, 0); + if (fotg210->periodic == NULL) + goto fail; + + for (i = 0; i < fotg210->periodic_size; i++) + fotg210->periodic[i] = FOTG210_LIST_END(fotg210); + + /* software shadow of hardware table */ + fotg210->pshadow = kcalloc(fotg210->periodic_size, sizeof(void *), + flags); + if (fotg210->pshadow != NULL) + return 0; + +fail: + fotg210_dbg(fotg210, "couldn't init memory\n"); + fotg210_mem_cleanup(fotg210); + return -ENOMEM; +} +/*-------------------------------------------------------------------------*/ +/* + * EHCI hardware queue manipulation ... the core. QH/QTD manipulation. + * + * Control, bulk, and interrupt traffic all use "qh" lists. They list "qtd" + * entries describing USB transactions, max 16-20kB/entry (with 4kB-aligned + * buffers needed for the larger number). We use one QH per endpoint, queue + * multiple urbs (all three types) per endpoint. URBs may need several qtds. + * + * ISO traffic uses "ISO TD" (itd) records, and (along with + * interrupts) needs careful scheduling. Performance improvements can be + * an ongoing challenge. That's in "ehci-sched.c". + * + * USB 1.1 devices are handled (a) by "companion" OHCI or UHCI root hubs, + * or otherwise through transaction translators (TTs) in USB 2.0 hubs using + * (b) special fields in qh entries or (c) split iso entries. TTs will + * buffer low/full speed data so the host collects it at high speed. + */ + +/*-------------------------------------------------------------------------*/ + +/* fill a qtd, returning how much of the buffer we were able to queue up */ + +static int +qtd_fill(struct fotg210_hcd *fotg210, struct fotg210_qtd *qtd, dma_addr_t buf, + size_t len, int token, int maxpacket) +{ + int i, count; + u64 addr = buf; + + /* one buffer entry per 4K ... first might be short or unaligned */ + qtd->hw_buf[0] = cpu_to_hc32(fotg210, (u32)addr); + qtd->hw_buf_hi[0] = cpu_to_hc32(fotg210, (u32)(addr >> 32)); + count = 0x1000 - (buf & 0x0fff); /* rest of that page */ + if (likely(len < count)) /* ... iff needed */ + count = len; + else { + buf += 0x1000; + buf &= ~0x0fff; + + /* per-qtd limit: from 16K to 20K (best alignment) */ + for (i = 1; count < len && i < 5; i++) { + addr = buf; + qtd->hw_buf[i] = cpu_to_hc32(fotg210, (u32)addr); + qtd->hw_buf_hi[i] = cpu_to_hc32(fotg210, + (u32)(addr >> 32)); + buf += 0x1000; + if ((count + 0x1000) < len) + count += 0x1000; + else + count = len; + } + + /* short packets may only terminate transfers */ + if (count != len) + count -= (count % maxpacket); + } + qtd->hw_token = cpu_to_hc32(fotg210, (count << 16) | token); + qtd->length = count; + + return count; +} + +/*-------------------------------------------------------------------------*/ + +static inline void +qh_update(struct fotg210_hcd *fotg210, struct fotg210_qh *qh, + struct fotg210_qtd *qtd) +{ + struct fotg210_qh_hw *hw = qh->hw; + + /* writes to an active overlay are unsafe */ + BUG_ON(qh->qh_state != QH_STATE_IDLE); + + hw->hw_qtd_next = QTD_NEXT(fotg210, qtd->qtd_dma); + hw->hw_alt_next = FOTG210_LIST_END(fotg210); + + /* Except for control endpoints, we make hardware maintain data + * toggle (like OHCI) ... here (re)initialize the toggle in the QH, + * and set the pseudo-toggle in udev. Only usb_clear_halt() will + * ever clear it. + */ + if (!(hw->hw_info1 & cpu_to_hc32(fotg210, QH_TOGGLE_CTL))) { + unsigned is_out, epnum; + + is_out = qh->is_out; + epnum = (hc32_to_cpup(fotg210, &hw->hw_info1) >> 8) & 0x0f; + if (unlikely(!usb_gettoggle(qh->dev, epnum, is_out))) { + hw->hw_token &= ~cpu_to_hc32(fotg210, QTD_TOGGLE); + usb_settoggle(qh->dev, epnum, is_out, 1); + } + } + + hw->hw_token &= cpu_to_hc32(fotg210, QTD_TOGGLE | QTD_STS_PING); +} + +/* if it weren't for a common silicon quirk (writing the dummy into the qh + * overlay, so qh->hw_token wrongly becomes inactive/halted), only fault + * recovery (including urb dequeue) would need software changes to a QH... + */ +static void +qh_refresh(struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{ + struct fotg210_qtd *qtd; + + if (list_empty(&qh->qtd_list)) + qtd = qh->dummy; + else { + qtd = list_entry(qh->qtd_list.next, + struct fotg210_qtd, qtd_list); + /* + * first qtd may already be partially processed. + * If we come here during unlink, the QH overlay region + * might have reference to the just unlinked qtd. The + * qtd is updated in qh_completions(). Update the QH + * overlay here. + */ + if (cpu_to_hc32(fotg210, qtd->qtd_dma) == qh->hw->hw_current) { + qh->hw->hw_qtd_next = qtd->hw_next; + qtd = NULL; + } + } + + if (qtd) + qh_update(fotg210, qh, qtd); +} + +/*-------------------------------------------------------------------------*/ + +static void qh_link_async(struct fotg210_hcd *fotg210, struct fotg210_qh *qh); + +static void fotg210_clear_tt_buffer_complete(struct usb_hcd *hcd, + struct usb_host_endpoint *ep) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + struct fotg210_qh *qh = ep->hcpriv; + unsigned long flags; + + spin_lock_irqsave(&fotg210->lock, flags); + qh->clearing_tt = 0; + if (qh->qh_state == QH_STATE_IDLE && !list_empty(&qh->qtd_list) + && fotg210->rh_state == FOTG210_RH_RUNNING) + qh_link_async(fotg210, qh); + spin_unlock_irqrestore(&fotg210->lock, flags); +} + +static void fotg210_clear_tt_buffer(struct fotg210_hcd *fotg210, + struct fotg210_qh *qh, + struct urb *urb, u32 token) +{ + + /* If an async split transaction gets an error or is unlinked, + * the TT buffer may be left in an indeterminate state. We + * have to clear the TT buffer. + * + * Note: this routine is never called for Isochronous transfers. + */ + if (urb->dev->tt && !usb_pipeint(urb->pipe) && !qh->clearing_tt) { +#ifdef DEBUG + struct usb_device *tt = urb->dev->tt->hub; + dev_dbg(&tt->dev, + "clear tt buffer port %d, a%d ep%d t%08x\n", + urb->dev->ttport, urb->dev->devnum, + usb_pipeendpoint(urb->pipe), token); +#endif /* DEBUG */ + if (urb->dev->tt->hub != + fotg210_to_hcd(fotg210)->self.root_hub) { + if (usb_hub_clear_tt_buffer(urb) == 0) + qh->clearing_tt = 1; + } + } +} + +static int qtd_copy_status( + struct fotg210_hcd *fotg210, + struct urb *urb, + size_t length, + u32 token +) +{ + int status = -EINPROGRESS; + + /* count IN/OUT bytes, not SETUP (even short packets) */ + if (likely(QTD_PID(token) != 2)) + urb->actual_length += length - QTD_LENGTH(token); + + /* don't modify error codes */ + if (unlikely(urb->unlinked)) + return status; + + /* force cleanup after short read; not always an error */ + if (unlikely(IS_SHORT_READ(token))) + status = -EREMOTEIO; + + /* serious "can't proceed" faults reported by the hardware */ + if (token & QTD_STS_HALT) { + if (token & QTD_STS_BABBLE) { + /* FIXME "must" disable babbling device's port too */ + status = -EOVERFLOW; + /* CERR nonzero + halt --> stall */ + } else if (QTD_CERR(token)) { + status = -EPIPE; + + /* In theory, more than one of the following bits can be set + * since they are sticky and the transaction is retried. + * Which to test first is rather arbitrary. + */ + } else if (token & QTD_STS_MMF) { + /* fs/ls interrupt xfer missed the complete-split */ + status = -EPROTO; + } else if (token & QTD_STS_DBE) { + status = (QTD_PID(token) == 1) /* IN ? */ + ? -ENOSR /* hc couldn't read data */ + : -ECOMM; /* hc couldn't write data */ + } else if (token & QTD_STS_XACT) { + /* timeout, bad CRC, wrong PID, etc */ + fotg210_dbg(fotg210, "devpath %s ep%d%s 3strikes\n", + urb->dev->devpath, + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "in" : "out"); + status = -EPROTO; + } else { /* unknown */ + status = -EPROTO; + } + + fotg210_vdbg(fotg210, + "dev%d ep%d%s qtd token %08x --> status %d\n", + usb_pipedevice(urb->pipe), + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "in" : "out", + token, status); + } + + return status; +} + +static void +fotg210_urb_done(struct fotg210_hcd *fotg210, struct urb *urb, int status) +__releases(fotg210->lock) +__acquires(fotg210->lock) +{ + if (likely(urb->hcpriv != NULL)) { + struct fotg210_qh *qh = (struct fotg210_qh *) urb->hcpriv; + + /* S-mask in a QH means it's an interrupt urb */ + if ((qh->hw->hw_info2 & cpu_to_hc32(fotg210, QH_SMASK)) != 0) { + + /* ... update hc-wide periodic stats (for usbfs) */ + fotg210_to_hcd(fotg210)->self.bandwidth_int_reqs--; + } + } + + if (unlikely(urb->unlinked)) { + COUNT(fotg210->stats.unlink); + } else { + /* report non-error and short read status as zero */ + if (status == -EINPROGRESS || status == -EREMOTEIO) + status = 0; + COUNT(fotg210->stats.complete); + } + +#ifdef FOTG210_URB_TRACE + fotg210_dbg(fotg210, + "%s %s urb %p ep%d%s status %d len %d/%d\n", + __func__, urb->dev->devpath, urb, + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "in" : "out", + status, + urb->actual_length, urb->transfer_buffer_length); +#endif + + /* complete() can reenter this HCD */ + usb_hcd_unlink_urb_from_ep(fotg210_to_hcd(fotg210), urb); + spin_unlock(&fotg210->lock); + usb_hcd_giveback_urb(fotg210_to_hcd(fotg210), urb, status); + spin_lock(&fotg210->lock); +} + +static int qh_schedule(struct fotg210_hcd *fotg210, struct fotg210_qh *qh); + +/* + * Process and free completed qtds for a qh, returning URBs to drivers. + * Chases up to qh->hw_current. Returns number of completions called, + * indicating how much "real" work we did. + */ +static unsigned +qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{ + struct fotg210_qtd *last, *end = qh->dummy; + struct list_head *entry, *tmp; + int last_status; + int stopped; + unsigned count = 0; + u8 state; + struct fotg210_qh_hw *hw = qh->hw; + + if (unlikely(list_empty(&qh->qtd_list))) + return count; + + /* completions (or tasks on other cpus) must never clobber HALT + * till we've gone through and cleaned everything up, even when + * they add urbs to this qh's queue or mark them for unlinking. + * + * NOTE: unlinking expects to be done in queue order. + * + * It's a bug for qh->qh_state to be anything other than + * QH_STATE_IDLE, unless our caller is scan_async() or + * scan_intr(). + */ + state = qh->qh_state; + qh->qh_state = QH_STATE_COMPLETING; + stopped = (state == QH_STATE_IDLE); + + rescan: + last = NULL; + last_status = -EINPROGRESS; + qh->needs_rescan = 0; + + /* remove de-activated QTDs from front of queue. + * after faults (including short reads), cleanup this urb + * then let the queue advance. + * if queue is stopped, handles unlinks. + */ + list_for_each_safe(entry, tmp, &qh->qtd_list) { + struct fotg210_qtd *qtd; + struct urb *urb; + u32 token = 0; + + qtd = list_entry(entry, struct fotg210_qtd, qtd_list); + urb = qtd->urb; + + /* clean up any state from previous QTD ...*/ + if (last) { + if (likely(last->urb != urb)) { + fotg210_urb_done(fotg210, last->urb, + last_status); + count++; + last_status = -EINPROGRESS; + } + fotg210_qtd_free(fotg210, last); + last = NULL; + } + + /* ignore urbs submitted during completions we reported */ + if (qtd == end) + break; + + /* hardware copies qtd out of qh overlay */ + rmb(); + token = hc32_to_cpu(fotg210, qtd->hw_token); + + /* always clean up qtds the hc de-activated */ + retry_xacterr: + if ((token & QTD_STS_ACTIVE) == 0) { + + /* Report Data Buffer Error: non-fatal but useful */ + if (token & QTD_STS_DBE) + fotg210_dbg(fotg210, + "detected DataBufferErr for urb %p ep%d%s len %d, qtd %p [qh %p]\n", + urb, + usb_endpoint_num(&urb->ep->desc), + usb_endpoint_dir_in(&urb->ep->desc) + ? "in" : "out", + urb->transfer_buffer_length, + qtd, + qh); + + /* on STALL, error, and short reads this urb must + * complete and all its qtds must be recycled. + */ + if ((token & QTD_STS_HALT) != 0) { + + /* retry transaction errors until we + * reach the software xacterr limit + */ + if ((token & QTD_STS_XACT) && + QTD_CERR(token) == 0 && + ++qh->xacterrs < QH_XACTERR_MAX && + !urb->unlinked) { + fotg210_dbg(fotg210, + "detected XactErr len %zu/%zu retry %d\n", + qtd->length - QTD_LENGTH(token), qtd->length, qh->xacterrs); + + /* reset the token in the qtd and the + * qh overlay (which still contains + * the qtd) so that we pick up from + * where we left off + */ + token &= ~QTD_STS_HALT; + token |= QTD_STS_ACTIVE | + (FOTG210_TUNE_CERR << 10); + qtd->hw_token = cpu_to_hc32(fotg210, + token); + wmb(); + hw->hw_token = cpu_to_hc32(fotg210, + token); + goto retry_xacterr; + } + stopped = 1; + + /* magic dummy for some short reads; qh won't advance. + * that silicon quirk can kick in with this dummy too. + * + * other short reads won't stop the queue, including + * control transfers (status stage handles that) or + * most other single-qtd reads ... the queue stops if + * URB_SHORT_NOT_OK was set so the driver submitting + * the urbs could clean it up. + */ + } else if (IS_SHORT_READ(token) + && !(qtd->hw_alt_next + & FOTG210_LIST_END(fotg210))) { + stopped = 1; + } + + /* stop scanning when we reach qtds the hc is using */ + } else if (likely(!stopped + && fotg210->rh_state >= FOTG210_RH_RUNNING)) { + break; + + /* scan the whole queue for unlinks whenever it stops */ + } else { + stopped = 1; + + /* cancel everything if we halt, suspend, etc */ + if (fotg210->rh_state < FOTG210_RH_RUNNING) + last_status = -ESHUTDOWN; + + /* this qtd is active; skip it unless a previous qtd + * for its urb faulted, or its urb was canceled. + */ + else if (last_status == -EINPROGRESS && !urb->unlinked) + continue; + + /* qh unlinked; token in overlay may be most current */ + if (state == QH_STATE_IDLE + && cpu_to_hc32(fotg210, qtd->qtd_dma) + == hw->hw_current) { + token = hc32_to_cpu(fotg210, hw->hw_token); + + /* An unlink may leave an incomplete + * async transaction in the TT buffer. + * We have to clear it. + */ + fotg210_clear_tt_buffer(fotg210, qh, urb, + token); + } + } + + /* unless we already know the urb's status, collect qtd status + * and update count of bytes transferred. in common short read + * cases with only one data qtd (including control transfers), + * queue processing won't halt. but with two or more qtds (for + * example, with a 32 KB transfer), when the first qtd gets a + * short read the second must be removed by hand. + */ + if (last_status == -EINPROGRESS) { + last_status = qtd_copy_status(fotg210, urb, + qtd->length, token); + if (last_status == -EREMOTEIO + && (qtd->hw_alt_next + & FOTG210_LIST_END(fotg210))) + last_status = -EINPROGRESS; + + /* As part of low/full-speed endpoint-halt processing + * we must clear the TT buffer (11.17.5). + */ + if (unlikely(last_status != -EINPROGRESS && + last_status != -EREMOTEIO)) { + /* The TT's in some hubs malfunction when they + * receive this request following a STALL (they + * stop sending isochronous packets). Since a + * STALL can't leave the TT buffer in a busy + * state (if you believe Figures 11-48 - 11-51 + * in the USB 2.0 spec), we won't clear the TT + * buffer in this case. Strictly speaking this + * is a violation of the spec. + */ + if (last_status != -EPIPE) + fotg210_clear_tt_buffer(fotg210, qh, + urb, token); + } + } + + /* if we're removing something not at the queue head, + * patch the hardware queue pointer. + */ + if (stopped && qtd->qtd_list.prev != &qh->qtd_list) { + last = list_entry(qtd->qtd_list.prev, + struct fotg210_qtd, qtd_list); + last->hw_next = qtd->hw_next; + } + + /* remove qtd; it's recycled after possible urb completion */ + list_del(&qtd->qtd_list); + last = qtd; + + /* reinit the xacterr counter for the next qtd */ + qh->xacterrs = 0; + } + + /* last urb's completion might still need calling */ + if (likely(last != NULL)) { + fotg210_urb_done(fotg210, last->urb, last_status); + count++; + fotg210_qtd_free(fotg210, last); + } + + /* Do we need to rescan for URBs dequeued during a giveback? */ + if (unlikely(qh->needs_rescan)) { + /* If the QH is already unlinked, do the rescan now. */ + if (state == QH_STATE_IDLE) + goto rescan; + + /* Otherwise we have to wait until the QH is fully unlinked. + * Our caller will start an unlink if qh->needs_rescan is + * set. But if an unlink has already started, nothing needs + * to be done. + */ + if (state != QH_STATE_LINKED) + qh->needs_rescan = 0; + } + + /* restore original state; caller must unlink or relink */ + qh->qh_state = state; + + /* be sure the hardware's done with the qh before refreshing + * it after fault cleanup, or recovering from silicon wrongly + * overlaying the dummy qtd (which reduces DMA chatter). + */ + if (stopped != 0 || hw->hw_qtd_next == FOTG210_LIST_END(fotg210)) { + switch (state) { + case QH_STATE_IDLE: + qh_refresh(fotg210, qh); + break; + case QH_STATE_LINKED: + /* We won't refresh a QH that's linked (after the HC + * stopped the queue). That avoids a race: + * - HC reads first part of QH; + * - CPU updates that first part and the token; + * - HC reads rest of that QH, including token + * Result: HC gets an inconsistent image, and then + * DMAs to/from the wrong memory (corrupting it). + * + * That should be rare for interrupt transfers, + * except maybe high bandwidth ... + */ + + /* Tell the caller to start an unlink */ + qh->needs_rescan = 1; + break; + /* otherwise, unlink already started */ + } + } + + return count; +} + +/*-------------------------------------------------------------------------*/ + +/* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */ +#define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03)) +/* ... and packet size, for any kind of endpoint descriptor */ +#define max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff) + +/* + * reverse of qh_urb_transaction: free a list of TDs. + * used for cleanup after errors, before HC sees an URB's TDs. + */ +static void qtd_list_free( + struct fotg210_hcd *fotg210, + struct urb *urb, + struct list_head *qtd_list +) { + struct list_head *entry, *temp; + + list_for_each_safe(entry, temp, qtd_list) { + struct fotg210_qtd *qtd; + + qtd = list_entry(entry, struct fotg210_qtd, qtd_list); + list_del(&qtd->qtd_list); + fotg210_qtd_free(fotg210, qtd); + } +} + +/* + * create a list of filled qtds for this URB; won't link into qh. + */ +static struct list_head * +qh_urb_transaction( + struct fotg210_hcd *fotg210, + struct urb *urb, + struct list_head *head, + gfp_t flags +) { + struct fotg210_qtd *qtd, *qtd_prev; + dma_addr_t buf; + int len, this_sg_len, maxpacket; + int is_input; + u32 token; + int i; + struct scatterlist *sg; + + /* + * URBs map to sequences of QTDs: one logical transaction + */ + qtd = fotg210_qtd_alloc(fotg210, flags); + if (unlikely(!qtd)) + return NULL; + list_add_tail(&qtd->qtd_list, head); + qtd->urb = urb; + + token = QTD_STS_ACTIVE; + token |= (FOTG210_TUNE_CERR << 10); + /* for split transactions, SplitXState initialized to zero */ + + len = urb->transfer_buffer_length; + is_input = usb_pipein(urb->pipe); + if (usb_pipecontrol(urb->pipe)) { + /* SETUP pid */ + qtd_fill(fotg210, qtd, urb->setup_dma, + sizeof(struct usb_ctrlrequest), + token | (2 /* "setup" */ << 8), 8); + + /* ... and always at least one more pid */ + token ^= QTD_TOGGLE; + qtd_prev = qtd; + qtd = fotg210_qtd_alloc(fotg210, flags); + if (unlikely(!qtd)) + goto cleanup; + qtd->urb = urb; + qtd_prev->hw_next = QTD_NEXT(fotg210, qtd->qtd_dma); + list_add_tail(&qtd->qtd_list, head); + + /* for zero length DATA stages, STATUS is always IN */ + if (len == 0) + token |= (1 /* "in" */ << 8); + } + + /* + * data transfer stage: buffer setup + */ + i = urb->num_mapped_sgs; + if (len > 0 && i > 0) { + sg = urb->sg; + buf = sg_dma_address(sg); + + /* urb->transfer_buffer_length may be smaller than the + * size of the scatterlist (or vice versa) + */ + this_sg_len = min_t(int, sg_dma_len(sg), len); + } else { + sg = NULL; + buf = urb->transfer_dma; + this_sg_len = len; + } + + if (is_input) + token |= (1 /* "in" */ << 8); + /* else it's already initted to "out" pid (0 << 8) */ + + maxpacket = max_packet(usb_maxpacket(urb->dev, urb->pipe, !is_input)); + + /* + * buffer gets wrapped in one or more qtds; + * last one may be "short" (including zero len) + * and may serve as a control status ack + */ + for (;;) { + int this_qtd_len; + + this_qtd_len = qtd_fill(fotg210, qtd, buf, this_sg_len, token, + maxpacket); + this_sg_len -= this_qtd_len; + len -= this_qtd_len; + buf += this_qtd_len; + + /* + * short reads advance to a "magic" dummy instead of the next + * qtd ... that forces the queue to stop, for manual cleanup. + * (this will usually be overridden later.) + */ + if (is_input) + qtd->hw_alt_next = fotg210->async->hw->hw_alt_next; + + /* qh makes control packets use qtd toggle; maybe switch it */ + if ((maxpacket & (this_qtd_len + (maxpacket - 1))) == 0) + token ^= QTD_TOGGLE; + + if (likely(this_sg_len <= 0)) { + if (--i <= 0 || len <= 0) + break; + sg = sg_next(sg); + buf = sg_dma_address(sg); + this_sg_len = min_t(int, sg_dma_len(sg), len); + } + + qtd_prev = qtd; + qtd = fotg210_qtd_alloc(fotg210, flags); + if (unlikely(!qtd)) + goto cleanup; + qtd->urb = urb; + qtd_prev->hw_next = QTD_NEXT(fotg210, qtd->qtd_dma); + list_add_tail(&qtd->qtd_list, head); + } + + /* + * unless the caller requires manual cleanup after short reads, + * have the alt_next mechanism keep the queue running after the + * last data qtd (the only one, for control and most other cases). + */ + if (likely((urb->transfer_flags & URB_SHORT_NOT_OK) == 0 + || usb_pipecontrol(urb->pipe))) + qtd->hw_alt_next = FOTG210_LIST_END(fotg210); + + /* + * control requests may need a terminating data "status" ack; + * other OUT ones may need a terminating short packet + * (zero length). + */ + if (likely(urb->transfer_buffer_length != 0)) { + int one_more = 0; + + if (usb_pipecontrol(urb->pipe)) { + one_more = 1; + token ^= 0x0100; /* "in" <--> "out" */ + token |= QTD_TOGGLE; /* force DATA1 */ + } else if (usb_pipeout(urb->pipe) + && (urb->transfer_flags & URB_ZERO_PACKET) + && !(urb->transfer_buffer_length % maxpacket)) { + one_more = 1; + } + if (one_more) { + qtd_prev = qtd; + qtd = fotg210_qtd_alloc(fotg210, flags); + if (unlikely(!qtd)) + goto cleanup; + qtd->urb = urb; + qtd_prev->hw_next = QTD_NEXT(fotg210, qtd->qtd_dma); + list_add_tail(&qtd->qtd_list, head); + + /* never any data in such packets */ + qtd_fill(fotg210, qtd, 0, 0, token, 0); + } + } + + /* by default, enable interrupt on urb completion */ + if (likely(!(urb->transfer_flags & URB_NO_INTERRUPT))) + qtd->hw_token |= cpu_to_hc32(fotg210, QTD_IOC); + return head; + +cleanup: + qtd_list_free(fotg210, urb, head); + return NULL; +} + +/*-------------------------------------------------------------------------*/ +/* + * Would be best to create all qh's from config descriptors, + * when each interface/altsetting is established. Unlink + * any previous qh and cancel its urbs first; endpoints are + * implicitly reset then (data toggle too). + * That'd mean updating how usbcore talks to HCDs. (2.7?) +*/ + + +/* + * Each QH holds a qtd list; a QH is used for everything except iso. + * + * For interrupt urbs, the scheduler must set the microframe scheduling + * mask(s) each time the QH gets scheduled. For highspeed, that's + * just one microframe in the s-mask. For split interrupt transactions + * there are additional complications: c-mask, maybe FSTNs. + */ +static struct fotg210_qh * +qh_make( + struct fotg210_hcd *fotg210, + struct urb *urb, + gfp_t flags +) { + struct fotg210_qh *qh = fotg210_qh_alloc(fotg210, flags); + u32 info1 = 0, info2 = 0; + int is_input, type; + int maxp = 0; + struct usb_tt *tt = urb->dev->tt; + struct fotg210_qh_hw *hw; + + if (!qh) + return qh; + + /* + * init endpoint/device data for this QH + */ + info1 |= usb_pipeendpoint(urb->pipe) << 8; + info1 |= usb_pipedevice(urb->pipe) << 0; + + is_input = usb_pipein(urb->pipe); + type = usb_pipetype(urb->pipe); + maxp = usb_maxpacket(urb->dev, urb->pipe, !is_input); + + /* 1024 byte maxpacket is a hardware ceiling. High bandwidth + * acts like up to 3KB, but is built from smaller packets. + */ + if (max_packet(maxp) > 1024) { + fotg210_dbg(fotg210, "bogus qh maxpacket %d\n", + max_packet(maxp)); + goto done; + } + + /* Compute interrupt scheduling parameters just once, and save. + * - allowing for high bandwidth, how many nsec/uframe are used? + * - split transactions need a second CSPLIT uframe; same question + * - splits also need a schedule gap (for full/low speed I/O) + * - qh has a polling interval + * + * For control/bulk requests, the HC or TT handles these. + */ + if (type == PIPE_INTERRUPT) { + qh->usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH, + is_input, 0, + hb_mult(maxp) * max_packet(maxp))); + qh->start = NO_FRAME; + + if (urb->dev->speed == USB_SPEED_HIGH) { + qh->c_usecs = 0; + qh->gap_uf = 0; + + qh->period = urb->interval >> 3; + if (qh->period == 0 && urb->interval != 1) { + /* NOTE interval 2 or 4 uframes could work. + * But interval 1 scheduling is simpler, and + * includes high bandwidth. + */ + urb->interval = 1; + } else if (qh->period > fotg210->periodic_size) { + qh->period = fotg210->periodic_size; + urb->interval = qh->period << 3; + } + } else { + int think_time; + + /* gap is f(FS/LS transfer times) */ + qh->gap_uf = 1 + usb_calc_bus_time(urb->dev->speed, + is_input, 0, maxp) / (125 * 1000); + + /* FIXME this just approximates SPLIT/CSPLIT times */ + if (is_input) { /* SPLIT, gap, CSPLIT+DATA */ + qh->c_usecs = qh->usecs + HS_USECS(0); + qh->usecs = HS_USECS(1); + } else { /* SPLIT+DATA, gap, CSPLIT */ + qh->usecs += HS_USECS(1); + qh->c_usecs = HS_USECS(0); + } + + think_time = tt ? tt->think_time : 0; + qh->tt_usecs = NS_TO_US(think_time + + usb_calc_bus_time(urb->dev->speed, + is_input, 0, max_packet(maxp))); + qh->period = urb->interval; + if (qh->period > fotg210->periodic_size) { + qh->period = fotg210->periodic_size; + urb->interval = qh->period; + } + } + } + + /* support for tt scheduling, and access to toggles */ + qh->dev = urb->dev; + + /* using TT? */ + switch (urb->dev->speed) { + case USB_SPEED_LOW: + info1 |= QH_LOW_SPEED; + /* FALL THROUGH */ + + case USB_SPEED_FULL: + /* EPS 0 means "full" */ + if (type != PIPE_INTERRUPT) + info1 |= (FOTG210_TUNE_RL_TT << 28); + if (type == PIPE_CONTROL) { + info1 |= QH_CONTROL_EP; /* for TT */ + info1 |= QH_TOGGLE_CTL; /* toggle from qtd */ + } + info1 |= maxp << 16; + + info2 |= (FOTG210_TUNE_MULT_TT << 30); + + /* Some Freescale processors have an erratum in which the + * port number in the queue head was 0..N-1 instead of 1..N. + */ + if (fotg210_has_fsl_portno_bug(fotg210)) + info2 |= (urb->dev->ttport-1) << 23; + else + info2 |= urb->dev->ttport << 23; + + /* set the address of the TT; for TDI's integrated + * root hub tt, leave it zeroed. + */ + if (tt && tt->hub != fotg210_to_hcd(fotg210)->self.root_hub) + info2 |= tt->hub->devnum << 16; + + /* NOTE: if (PIPE_INTERRUPT) { scheduler sets c-mask } */ + + break; + + case USB_SPEED_HIGH: /* no TT involved */ + info1 |= QH_HIGH_SPEED; + if (type == PIPE_CONTROL) { + info1 |= (FOTG210_TUNE_RL_HS << 28); + info1 |= 64 << 16; /* usb2 fixed maxpacket */ + info1 |= QH_TOGGLE_CTL; /* toggle from qtd */ + info2 |= (FOTG210_TUNE_MULT_HS << 30); + } else if (type == PIPE_BULK) { + info1 |= (FOTG210_TUNE_RL_HS << 28); + /* The USB spec says that high speed bulk endpoints + * always use 512 byte maxpacket. But some device + * vendors decided to ignore that, and MSFT is happy + * to help them do so. So now people expect to use + * such nonconformant devices with Linux too; sigh. + */ + info1 |= max_packet(maxp) << 16; + info2 |= (FOTG210_TUNE_MULT_HS << 30); + } else { /* PIPE_INTERRUPT */ + info1 |= max_packet(maxp) << 16; + info2 |= hb_mult(maxp) << 30; + } + break; + default: + fotg210_dbg(fotg210, "bogus dev %p speed %d\n", urb->dev, + urb->dev->speed); +done: + qh_destroy(fotg210, qh); + return NULL; + } + + /* NOTE: if (PIPE_INTERRUPT) { scheduler sets s-mask } */ + + /* init as live, toggle clear, advance to dummy */ + qh->qh_state = QH_STATE_IDLE; + hw = qh->hw; + hw->hw_info1 = cpu_to_hc32(fotg210, info1); + hw->hw_info2 = cpu_to_hc32(fotg210, info2); + qh->is_out = !is_input; + usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), !is_input, 1); + qh_refresh(fotg210, qh); + return qh; +} + +/*-------------------------------------------------------------------------*/ + +static void enable_async(struct fotg210_hcd *fotg210) +{ + if (fotg210->async_count++) + return; + + /* Stop waiting to turn off the async schedule */ + fotg210->enabled_hrtimer_events &= ~BIT(FOTG210_HRTIMER_DISABLE_ASYNC); + + /* Don't start the schedule until ASS is 0 */ + fotg210_poll_ASS(fotg210); + turn_on_io_watchdog(fotg210); +} + +static void disable_async(struct fotg210_hcd *fotg210) +{ + if (--fotg210->async_count) + return; + + /* The async schedule and async_unlink list are supposed to be empty */ + WARN_ON(fotg210->async->qh_next.qh || fotg210->async_unlink); + + /* Don't turn off the schedule until ASS is 1 */ + fotg210_poll_ASS(fotg210); +} + +/* move qh (and its qtds) onto async queue; maybe enable queue. */ + +static void qh_link_async(struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{ + __hc32 dma = QH_NEXT(fotg210, qh->qh_dma); + struct fotg210_qh *head; + + /* Don't link a QH if there's a Clear-TT-Buffer pending */ + if (unlikely(qh->clearing_tt)) + return; + + WARN_ON(qh->qh_state != QH_STATE_IDLE); + + /* clear halt and/or toggle; and maybe recover from silicon quirk */ + qh_refresh(fotg210, qh); + + /* splice right after start */ + head = fotg210->async; + qh->qh_next = head->qh_next; + qh->hw->hw_next = head->hw->hw_next; + wmb(); + + head->qh_next.qh = qh; + head->hw->hw_next = dma; + + qh->xacterrs = 0; + qh->qh_state = QH_STATE_LINKED; + /* qtd completions reported later by interrupt */ + + enable_async(fotg210); +} + +/*-------------------------------------------------------------------------*/ + +/* + * For control/bulk/interrupt, return QH with these TDs appended. + * Allocates and initializes the QH if necessary. + * Returns null if it can't allocate a QH it needs to. + * If the QH has TDs (urbs) already, that's great. + */ +static struct fotg210_qh *qh_append_tds( + struct fotg210_hcd *fotg210, + struct urb *urb, + struct list_head *qtd_list, + int epnum, + void **ptr +) +{ + struct fotg210_qh *qh = NULL; + __hc32 qh_addr_mask = cpu_to_hc32(fotg210, 0x7f); + + qh = (struct fotg210_qh *) *ptr; + if (unlikely(qh == NULL)) { + /* can't sleep here, we have fotg210->lock... */ + qh = qh_make(fotg210, urb, GFP_ATOMIC); + *ptr = qh; + } + if (likely(qh != NULL)) { + struct fotg210_qtd *qtd; + + if (unlikely(list_empty(qtd_list))) + qtd = NULL; + else + qtd = list_entry(qtd_list->next, struct fotg210_qtd, + qtd_list); + + /* control qh may need patching ... */ + if (unlikely(epnum == 0)) { + /* usb_reset_device() briefly reverts to address 0 */ + if (usb_pipedevice(urb->pipe) == 0) + qh->hw->hw_info1 &= ~qh_addr_mask; + } + + /* just one way to queue requests: swap with the dummy qtd. + * only hc or qh_refresh() ever modify the overlay. + */ + if (likely(qtd != NULL)) { + struct fotg210_qtd *dummy; + dma_addr_t dma; + __hc32 token; + + /* to avoid racing the HC, use the dummy td instead of + * the first td of our list (becomes new dummy). both + * tds stay deactivated until we're done, when the + * HC is allowed to fetch the old dummy (4.10.2). + */ + token = qtd->hw_token; + qtd->hw_token = HALT_BIT(fotg210); + + dummy = qh->dummy; + + dma = dummy->qtd_dma; + *dummy = *qtd; + dummy->qtd_dma = dma; + + list_del(&qtd->qtd_list); + list_add(&dummy->qtd_list, qtd_list); + list_splice_tail(qtd_list, &qh->qtd_list); + + fotg210_qtd_init(fotg210, qtd, qtd->qtd_dma); + qh->dummy = qtd; + + /* hc must see the new dummy at list end */ + dma = qtd->qtd_dma; + qtd = list_entry(qh->qtd_list.prev, + struct fotg210_qtd, qtd_list); + qtd->hw_next = QTD_NEXT(fotg210, dma); + + /* let the hc process these next qtds */ + wmb(); + dummy->hw_token = token; + + urb->hcpriv = qh; + } + } + return qh; +} + +/*-------------------------------------------------------------------------*/ + +static int +submit_async( + struct fotg210_hcd *fotg210, + struct urb *urb, + struct list_head *qtd_list, + gfp_t mem_flags +) { + int epnum; + unsigned long flags; + struct fotg210_qh *qh = NULL; + int rc; + + epnum = urb->ep->desc.bEndpointAddress; + +#ifdef FOTG210_URB_TRACE + { + struct fotg210_qtd *qtd; + qtd = list_entry(qtd_list->next, struct fotg210_qtd, qtd_list); + fotg210_dbg(fotg210, + "%s %s urb %p ep%d%s len %d, qtd %p [qh %p]\n", + __func__, urb->dev->devpath, urb, + epnum & 0x0f, (epnum & USB_DIR_IN) ? "in" : "out", + urb->transfer_buffer_length, + qtd, urb->ep->hcpriv); + } +#endif + + spin_lock_irqsave(&fotg210->lock, flags); + if (unlikely(!HCD_HW_ACCESSIBLE(fotg210_to_hcd(fotg210)))) { + rc = -ESHUTDOWN; + goto done; + } + rc = usb_hcd_link_urb_to_ep(fotg210_to_hcd(fotg210), urb); + if (unlikely(rc)) + goto done; + + qh = qh_append_tds(fotg210, urb, qtd_list, epnum, &urb->ep->hcpriv); + if (unlikely(qh == NULL)) { + usb_hcd_unlink_urb_from_ep(fotg210_to_hcd(fotg210), urb); + rc = -ENOMEM; + goto done; + } + + /* Control/bulk operations through TTs don't need scheduling, + * the HC and TT handle it when the TT has a buffer ready. + */ + if (likely(qh->qh_state == QH_STATE_IDLE)) + qh_link_async(fotg210, qh); + done: + spin_unlock_irqrestore(&fotg210->lock, flags); + if (unlikely(qh == NULL)) + qtd_list_free(fotg210, urb, qtd_list); + return rc; +} + +/*-------------------------------------------------------------------------*/ + +static void single_unlink_async(struct fotg210_hcd *fotg210, + struct fotg210_qh *qh) +{ + struct fotg210_qh *prev; + + /* Add to the end of the list of QHs waiting for the next IAAD */ + qh->qh_state = QH_STATE_UNLINK; + if (fotg210->async_unlink) + fotg210->async_unlink_last->unlink_next = qh; + else + fotg210->async_unlink = qh; + fotg210->async_unlink_last = qh; + + /* Unlink it from the schedule */ + prev = fotg210->async; + while (prev->qh_next.qh != qh) + prev = prev->qh_next.qh; + + prev->hw->hw_next = qh->hw->hw_next; + prev->qh_next = qh->qh_next; + if (fotg210->qh_scan_next == qh) + fotg210->qh_scan_next = qh->qh_next.qh; +} + +static void start_iaa_cycle(struct fotg210_hcd *fotg210, bool nested) +{ + /* + * Do nothing if an IAA cycle is already running or + * if one will be started shortly. + */ + if (fotg210->async_iaa || fotg210->async_unlinking) + return; + + /* Do all the waiting QHs at once */ + fotg210->async_iaa = fotg210->async_unlink; + fotg210->async_unlink = NULL; + + /* If the controller isn't running, we don't have to wait for it */ + if (unlikely(fotg210->rh_state < FOTG210_RH_RUNNING)) { + if (!nested) /* Avoid recursion */ + end_unlink_async(fotg210); + + /* Otherwise start a new IAA cycle */ + } else if (likely(fotg210->rh_state == FOTG210_RH_RUNNING)) { + /* Make sure the unlinks are all visible to the hardware */ + wmb(); + + fotg210_writel(fotg210, fotg210->command | CMD_IAAD, + &fotg210->regs->command); + fotg210_readl(fotg210, &fotg210->regs->command); + fotg210_enable_event(fotg210, FOTG210_HRTIMER_IAA_WATCHDOG, + true); + } +} + +/* the async qh for the qtds being unlinked are now gone from the HC */ + +static void end_unlink_async(struct fotg210_hcd *fotg210) +{ + struct fotg210_qh *qh; + + /* Process the idle QHs */ + restart: + fotg210->async_unlinking = true; + while (fotg210->async_iaa) { + qh = fotg210->async_iaa; + fotg210->async_iaa = qh->unlink_next; + qh->unlink_next = NULL; + + qh->qh_state = QH_STATE_IDLE; + qh->qh_next.qh = NULL; + + qh_completions(fotg210, qh); + if (!list_empty(&qh->qtd_list) && + fotg210->rh_state == FOTG210_RH_RUNNING) + qh_link_async(fotg210, qh); + disable_async(fotg210); + } + fotg210->async_unlinking = false; + + /* Start a new IAA cycle if any QHs are waiting for it */ + if (fotg210->async_unlink) { + start_iaa_cycle(fotg210, true); + if (unlikely(fotg210->rh_state < FOTG210_RH_RUNNING)) + goto restart; + } +} + +static void unlink_empty_async(struct fotg210_hcd *fotg210) +{ + struct fotg210_qh *qh, *next; + bool stopped = (fotg210->rh_state < FOTG210_RH_RUNNING); + bool check_unlinks_later = false; + + /* Unlink all the async QHs that have been empty for a timer cycle */ + next = fotg210->async->qh_next.qh; + while (next) { + qh = next; + next = qh->qh_next.qh; + + if (list_empty(&qh->qtd_list) && + qh->qh_state == QH_STATE_LINKED) { + if (!stopped && qh->unlink_cycle == + fotg210->async_unlink_cycle) + check_unlinks_later = true; + else + single_unlink_async(fotg210, qh); + } + } + + /* Start a new IAA cycle if any QHs are waiting for it */ + if (fotg210->async_unlink) + start_iaa_cycle(fotg210, false); + + /* QHs that haven't been empty for long enough will be handled later */ + if (check_unlinks_later) { + fotg210_enable_event(fotg210, FOTG210_HRTIMER_ASYNC_UNLINKS, + true); + ++fotg210->async_unlink_cycle; + } +} + +/* makes sure the async qh will become idle */ +/* caller must own fotg210->lock */ + +static void start_unlink_async(struct fotg210_hcd *fotg210, + struct fotg210_qh *qh) +{ + /* + * If the QH isn't linked then there's nothing we can do + * unless we were called during a giveback, in which case + * qh_completions() has to deal with it. + */ + if (qh->qh_state != QH_STATE_LINKED) { + if (qh->qh_state == QH_STATE_COMPLETING) + qh->needs_rescan = 1; + return; + } + + single_unlink_async(fotg210, qh); + start_iaa_cycle(fotg210, false); +} + +/*-------------------------------------------------------------------------*/ + +static void scan_async(struct fotg210_hcd *fotg210) +{ + struct fotg210_qh *qh; + bool check_unlinks_later = false; + + fotg210->qh_scan_next = fotg210->async->qh_next.qh; + while (fotg210->qh_scan_next) { + qh = fotg210->qh_scan_next; + fotg210->qh_scan_next = qh->qh_next.qh; + rescan: + /* clean any finished work for this qh */ + if (!list_empty(&qh->qtd_list)) { + int temp; + + /* + * Unlinks could happen here; completion reporting + * drops the lock. That's why fotg210->qh_scan_next + * always holds the next qh to scan; if the next qh + * gets unlinked then fotg210->qh_scan_next is adjusted + * in single_unlink_async(). + */ + temp = qh_completions(fotg210, qh); + if (qh->needs_rescan) { + start_unlink_async(fotg210, qh); + } else if (list_empty(&qh->qtd_list) + && qh->qh_state == QH_STATE_LINKED) { + qh->unlink_cycle = fotg210->async_unlink_cycle; + check_unlinks_later = true; + } else if (temp != 0) + goto rescan; + } + } + + /* + * Unlink empty entries, reducing DMA usage as well + * as HCD schedule-scanning costs. Delay for any qh + * we just scanned, there's a not-unusual case that it + * doesn't stay idle for long. + */ + if (check_unlinks_later && fotg210->rh_state == FOTG210_RH_RUNNING && + !(fotg210->enabled_hrtimer_events & + BIT(FOTG210_HRTIMER_ASYNC_UNLINKS))) { + fotg210_enable_event(fotg210, + FOTG210_HRTIMER_ASYNC_UNLINKS, true); + ++fotg210->async_unlink_cycle; + } +} +/*-------------------------------------------------------------------------*/ +/* + * EHCI scheduled transaction support: interrupt, iso, split iso + * These are called "periodic" transactions in the EHCI spec. + * + * Note that for interrupt transfers, the QH/QTD manipulation is shared + * with the "asynchronous" transaction support (control/bulk transfers). + * The only real difference is in how interrupt transfers are scheduled. + * + * For ISO, we make an "iso_stream" head to serve the same role as a QH. + * It keeps track of every ITD (or SITD) that's linked, and holds enough + * pre-calculated schedule data to make appending to the queue be quick. + */ + +static int fotg210_get_frame(struct usb_hcd *hcd); + +/*-------------------------------------------------------------------------*/ + +/* + * periodic_next_shadow - return "next" pointer on shadow list + * @periodic: host pointer to qh/itd + * @tag: hardware tag for type of this record + */ +static union fotg210_shadow * +periodic_next_shadow(struct fotg210_hcd *fotg210, + union fotg210_shadow *periodic, __hc32 tag) +{ + switch (hc32_to_cpu(fotg210, tag)) { + case Q_TYPE_QH: + return &periodic->qh->qh_next; + case Q_TYPE_FSTN: + return &periodic->fstn->fstn_next; + default: + return &periodic->itd->itd_next; + } +} + +static __hc32 * +shadow_next_periodic(struct fotg210_hcd *fotg210, + union fotg210_shadow *periodic, __hc32 tag) +{ + switch (hc32_to_cpu(fotg210, tag)) { + /* our fotg210_shadow.qh is actually software part */ + case Q_TYPE_QH: + return &periodic->qh->hw->hw_next; + /* others are hw parts */ + default: + return periodic->hw_next; + } +} + +/* caller must hold fotg210->lock */ +static void periodic_unlink(struct fotg210_hcd *fotg210, unsigned frame, + void *ptr) +{ + union fotg210_shadow *prev_p = &fotg210->pshadow[frame]; + __hc32 *hw_p = &fotg210->periodic[frame]; + union fotg210_shadow here = *prev_p; + + /* find predecessor of "ptr"; hw and shadow lists are in sync */ + while (here.ptr && here.ptr != ptr) { + prev_p = periodic_next_shadow(fotg210, prev_p, + Q_NEXT_TYPE(fotg210, *hw_p)); + hw_p = shadow_next_periodic(fotg210, &here, + Q_NEXT_TYPE(fotg210, *hw_p)); + here = *prev_p; + } + /* an interrupt entry (at list end) could have been shared */ + if (!here.ptr) + return; + + /* update shadow and hardware lists ... the old "next" pointers + * from ptr may still be in use, the caller updates them. + */ + *prev_p = *periodic_next_shadow(fotg210, &here, + Q_NEXT_TYPE(fotg210, *hw_p)); + + *hw_p = *shadow_next_periodic(fotg210, &here, + Q_NEXT_TYPE(fotg210, *hw_p)); +} + +/* how many of the uframe's 125 usecs are allocated? */ +static unsigned short +periodic_usecs(struct fotg210_hcd *fotg210, unsigned frame, unsigned uframe) +{ + __hc32 *hw_p = &fotg210->periodic[frame]; + union fotg210_shadow *q = &fotg210->pshadow[frame]; + unsigned usecs = 0; + struct fotg210_qh_hw *hw; + + while (q->ptr) { + switch (hc32_to_cpu(fotg210, Q_NEXT_TYPE(fotg210, *hw_p))) { + case Q_TYPE_QH: + hw = q->qh->hw; + /* is it in the S-mask? */ + if (hw->hw_info2 & cpu_to_hc32(fotg210, 1 << uframe)) + usecs += q->qh->usecs; + /* ... or C-mask? */ + if (hw->hw_info2 & cpu_to_hc32(fotg210, + 1 << (8 + uframe))) + usecs += q->qh->c_usecs; + hw_p = &hw->hw_next; + q = &q->qh->qh_next; + break; + /* case Q_TYPE_FSTN: */ + default: + /* for "save place" FSTNs, count the relevant INTR + * bandwidth from the previous frame + */ + if (q->fstn->hw_prev != FOTG210_LIST_END(fotg210)) + fotg210_dbg(fotg210, "ignoring FSTN cost ...\n"); + + hw_p = &q->fstn->hw_next; + q = &q->fstn->fstn_next; + break; + case Q_TYPE_ITD: + if (q->itd->hw_transaction[uframe]) + usecs += q->itd->stream->usecs; + hw_p = &q->itd->hw_next; + q = &q->itd->itd_next; + break; + } + } +#ifdef DEBUG + if (usecs > fotg210->uframe_periodic_max) + fotg210_err(fotg210, "uframe %d sched overrun: %d usecs\n", + frame * 8 + uframe, usecs); +#endif + return usecs; +} + +/*-------------------------------------------------------------------------*/ + +static int same_tt(struct usb_device *dev1, struct usb_device *dev2) +{ + if (!dev1->tt || !dev2->tt) + return 0; + if (dev1->tt != dev2->tt) + return 0; + if (dev1->tt->multi) + return dev1->ttport == dev2->ttport; + else + return 1; +} + +/* return true iff the device's transaction translator is available + * for a periodic transfer starting at the specified frame, using + * all the uframes in the mask. + */ +static int tt_no_collision( + struct fotg210_hcd *fotg210, + unsigned period, + struct usb_device *dev, + unsigned frame, + u32 uf_mask +) +{ + if (period == 0) /* error */ + return 0; + + /* note bandwidth wastage: split never follows csplit + * (different dev or endpoint) until the next uframe. + * calling convention doesn't make that distinction. + */ + for (; frame < fotg210->periodic_size; frame += period) { + union fotg210_shadow here; + __hc32 type; + struct fotg210_qh_hw *hw; + + here = fotg210->pshadow[frame]; + type = Q_NEXT_TYPE(fotg210, fotg210->periodic[frame]); + while (here.ptr) { + switch (hc32_to_cpu(fotg210, type)) { + case Q_TYPE_ITD: + type = Q_NEXT_TYPE(fotg210, here.itd->hw_next); + here = here.itd->itd_next; + continue; + case Q_TYPE_QH: + hw = here.qh->hw; + if (same_tt(dev, here.qh->dev)) { + u32 mask; + + mask = hc32_to_cpu(fotg210, + hw->hw_info2); + /* "knows" no gap is needed */ + mask |= mask >> 8; + if (mask & uf_mask) + break; + } + type = Q_NEXT_TYPE(fotg210, hw->hw_next); + here = here.qh->qh_next; + continue; + /* case Q_TYPE_FSTN: */ + default: + fotg210_dbg(fotg210, + "periodic frame %d bogus type %d\n", + frame, type); + } + + /* collision or error */ + return 0; + } + } + + /* no collision */ + return 1; +} + +/*-------------------------------------------------------------------------*/ + +static void enable_periodic(struct fotg210_hcd *fotg210) +{ + if (fotg210->periodic_count++) + return; + + /* Stop waiting to turn off the periodic schedule */ + fotg210->enabled_hrtimer_events &= + ~BIT(FOTG210_HRTIMER_DISABLE_PERIODIC); + + /* Don't start the schedule until PSS is 0 */ + fotg210_poll_PSS(fotg210); + turn_on_io_watchdog(fotg210); +} + +static void disable_periodic(struct fotg210_hcd *fotg210) +{ + if (--fotg210->periodic_count) + return; + + /* Don't turn off the schedule until PSS is 1 */ + fotg210_poll_PSS(fotg210); +} + +/*-------------------------------------------------------------------------*/ + +/* periodic schedule slots have iso tds (normal or split) first, then a + * sparse tree for active interrupt transfers. + * + * this just links in a qh; caller guarantees uframe masks are set right. + * no FSTN support (yet; fotg210 0.96+) + */ +static void qh_link_periodic(struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{ + unsigned i; + unsigned period = qh->period; + + dev_dbg(&qh->dev->dev, + "link qh%d-%04x/%p start %d [%d/%d us]\n", + period, hc32_to_cpup(fotg210, &qh->hw->hw_info2) + & (QH_CMASK | QH_SMASK), + qh, qh->start, qh->usecs, qh->c_usecs); + + /* high bandwidth, or otherwise every microframe */ + if (period == 0) + period = 1; + + for (i = qh->start; i < fotg210->periodic_size; i += period) { + union fotg210_shadow *prev = &fotg210->pshadow[i]; + __hc32 *hw_p = &fotg210->periodic[i]; + union fotg210_shadow here = *prev; + __hc32 type = 0; + + /* skip the iso nodes at list head */ + while (here.ptr) { + type = Q_NEXT_TYPE(fotg210, *hw_p); + if (type == cpu_to_hc32(fotg210, Q_TYPE_QH)) + break; + prev = periodic_next_shadow(fotg210, prev, type); + hw_p = shadow_next_periodic(fotg210, &here, type); + here = *prev; + } + + /* sorting each branch by period (slow-->fast) + * enables sharing interior tree nodes + */ + while (here.ptr && qh != here.qh) { + if (qh->period > here.qh->period) + break; + prev = &here.qh->qh_next; + hw_p = &here.qh->hw->hw_next; + here = *prev; + } + /* link in this qh, unless some earlier pass did that */ + if (qh != here.qh) { + qh->qh_next = here; + if (here.qh) + qh->hw->hw_next = *hw_p; + wmb(); + prev->qh = qh; + *hw_p = QH_NEXT(fotg210, qh->qh_dma); + } + } + qh->qh_state = QH_STATE_LINKED; + qh->xacterrs = 0; + + /* update per-qh bandwidth for usbfs */ + fotg210_to_hcd(fotg210)->self.bandwidth_allocated += qh->period + ? ((qh->usecs + qh->c_usecs) / qh->period) + : (qh->usecs * 8); + + list_add(&qh->intr_node, &fotg210->intr_qh_list); + + /* maybe enable periodic schedule processing */ + ++fotg210->intr_count; + enable_periodic(fotg210); +} + +static void qh_unlink_periodic(struct fotg210_hcd *fotg210, + struct fotg210_qh *qh) +{ + unsigned i; + unsigned period; + + /* + * If qh is for a low/full-speed device, simply unlinking it + * could interfere with an ongoing split transaction. To unlink + * it safely would require setting the QH_INACTIVATE bit and + * waiting at least one frame, as described in EHCI 4.12.2.5. + * + * We won't bother with any of this. Instead, we assume that the + * only reason for unlinking an interrupt QH while the current URB + * is still active is to dequeue all the URBs (flush the whole + * endpoint queue). + * + * If rebalancing the periodic schedule is ever implemented, this + * approach will no longer be valid. + */ + + /* high bandwidth, or otherwise part of every microframe */ + period = qh->period; + if (!period) + period = 1; + + for (i = qh->start; i < fotg210->periodic_size; i += period) + periodic_unlink(fotg210, i, qh); + + /* update per-qh bandwidth for usbfs */ + fotg210_to_hcd(fotg210)->self.bandwidth_allocated -= qh->period + ? ((qh->usecs + qh->c_usecs) / qh->period) + : (qh->usecs * 8); + + dev_dbg(&qh->dev->dev, + "unlink qh%d-%04x/%p start %d [%d/%d us]\n", + qh->period, + hc32_to_cpup(fotg210, &qh->hw->hw_info2) & + (QH_CMASK | QH_SMASK), qh, qh->start, qh->usecs, qh->c_usecs); + + /* qh->qh_next still "live" to HC */ + qh->qh_state = QH_STATE_UNLINK; + qh->qh_next.ptr = NULL; + + if (fotg210->qh_scan_next == qh) + fotg210->qh_scan_next = list_entry(qh->intr_node.next, + struct fotg210_qh, intr_node); + list_del(&qh->intr_node); +} + +static void start_unlink_intr(struct fotg210_hcd *fotg210, + struct fotg210_qh *qh) +{ + /* If the QH isn't linked then there's nothing we can do + * unless we were called during a giveback, in which case + * qh_completions() has to deal with it. + */ + if (qh->qh_state != QH_STATE_LINKED) { + if (qh->qh_state == QH_STATE_COMPLETING) + qh->needs_rescan = 1; + return; + } + + qh_unlink_periodic(fotg210, qh); + + /* Make sure the unlinks are visible before starting the timer */ + wmb(); + + /* + * The EHCI spec doesn't say how long it takes the controller to + * stop accessing an unlinked interrupt QH. The timer delay is + * 9 uframes; presumably that will be long enough. + */ + qh->unlink_cycle = fotg210->intr_unlink_cycle; + + /* New entries go at the end of the intr_unlink list */ + if (fotg210->intr_unlink) + fotg210->intr_unlink_last->unlink_next = qh; + else + fotg210->intr_unlink = qh; + fotg210->intr_unlink_last = qh; + + if (fotg210->intr_unlinking) + ; /* Avoid recursive calls */ + else if (fotg210->rh_state < FOTG210_RH_RUNNING) + fotg210_handle_intr_unlinks(fotg210); + else if (fotg210->intr_unlink == qh) { + fotg210_enable_event(fotg210, FOTG210_HRTIMER_UNLINK_INTR, + true); + ++fotg210->intr_unlink_cycle; + } +} + +static void end_unlink_intr(struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{ + struct fotg210_qh_hw *hw = qh->hw; + int rc; + + qh->qh_state = QH_STATE_IDLE; + hw->hw_next = FOTG210_LIST_END(fotg210); + + qh_completions(fotg210, qh); + + /* reschedule QH iff another request is queued */ + if (!list_empty(&qh->qtd_list) && + fotg210->rh_state == FOTG210_RH_RUNNING) { + rc = qh_schedule(fotg210, qh); + + /* An error here likely indicates handshake failure + * or no space left in the schedule. Neither fault + * should happen often ... + * + * FIXME kill the now-dysfunctional queued urbs + */ + if (rc != 0) + fotg210_err(fotg210, "can't reschedule qh %p, err %d\n", + qh, rc); + } + + /* maybe turn off periodic schedule */ + --fotg210->intr_count; + disable_periodic(fotg210); +} + +/*-------------------------------------------------------------------------*/ + +static int check_period( + struct fotg210_hcd *fotg210, + unsigned frame, + unsigned uframe, + unsigned period, + unsigned usecs +) { + int claimed; + + /* complete split running into next frame? + * given FSTN support, we could sometimes check... + */ + if (uframe >= 8) + return 0; + + /* convert "usecs we need" to "max already claimed" */ + usecs = fotg210->uframe_periodic_max - usecs; + + /* we "know" 2 and 4 uframe intervals were rejected; so + * for period 0, check _every_ microframe in the schedule. + */ + if (unlikely(period == 0)) { + do { + for (uframe = 0; uframe < 7; uframe++) { + claimed = periodic_usecs(fotg210, frame, + uframe); + if (claimed > usecs) + return 0; + } + } while ((frame += 1) < fotg210->periodic_size); + + /* just check the specified uframe, at that period */ + } else { + do { + claimed = periodic_usecs(fotg210, frame, uframe); + if (claimed > usecs) + return 0; + } while ((frame += period) < fotg210->periodic_size); + } + + /* success! */ + return 1; +} + +static int check_intr_schedule( + struct fotg210_hcd *fotg210, + unsigned frame, + unsigned uframe, + const struct fotg210_qh *qh, + __hc32 *c_maskp +) +{ + int retval = -ENOSPC; + u8 mask = 0; + + if (qh->c_usecs && uframe >= 6) /* FSTN territory? */ + goto done; + + if (!check_period(fotg210, frame, uframe, qh->period, qh->usecs)) + goto done; + if (!qh->c_usecs) { + retval = 0; + *c_maskp = 0; + goto done; + } + + /* Make sure this tt's buffer is also available for CSPLITs. + * We pessimize a bit; probably the typical full speed case + * doesn't need the second CSPLIT. + * + * NOTE: both SPLIT and CSPLIT could be checked in just + * one smart pass... + */ + mask = 0x03 << (uframe + qh->gap_uf); + *c_maskp = cpu_to_hc32(fotg210, mask << 8); + + mask |= 1 << uframe; + if (tt_no_collision(fotg210, qh->period, qh->dev, frame, mask)) { + if (!check_period(fotg210, frame, uframe + qh->gap_uf + 1, + qh->period, qh->c_usecs)) + goto done; + if (!check_period(fotg210, frame, uframe + qh->gap_uf, + qh->period, qh->c_usecs)) + goto done; + retval = 0; + } +done: + return retval; +} + +/* "first fit" scheduling policy used the first time through, + * or when the previous schedule slot can't be re-used. + */ +static int qh_schedule(struct fotg210_hcd *fotg210, struct fotg210_qh *qh) +{ + int status; + unsigned uframe; + __hc32 c_mask; + unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */ + struct fotg210_qh_hw *hw = qh->hw; + + qh_refresh(fotg210, qh); + hw->hw_next = FOTG210_LIST_END(fotg210); + frame = qh->start; + + /* reuse the previous schedule slots, if we can */ + if (frame < qh->period) { + uframe = ffs(hc32_to_cpup(fotg210, &hw->hw_info2) & QH_SMASK); + status = check_intr_schedule(fotg210, frame, --uframe, + qh, &c_mask); + } else { + uframe = 0; + c_mask = 0; + status = -ENOSPC; + } + + /* else scan the schedule to find a group of slots such that all + * uframes have enough periodic bandwidth available. + */ + if (status) { + /* "normal" case, uframing flexible except with splits */ + if (qh->period) { + int i; + + for (i = qh->period; status && i > 0; --i) { + frame = ++fotg210->random_frame % qh->period; + for (uframe = 0; uframe < 8; uframe++) { + status = check_intr_schedule(fotg210, + frame, uframe, qh, + &c_mask); + if (status == 0) + break; + } + } + + /* qh->period == 0 means every uframe */ + } else { + frame = 0; + status = check_intr_schedule(fotg210, 0, 0, qh, + &c_mask); + } + if (status) + goto done; + qh->start = frame; + + /* reset S-frame and (maybe) C-frame masks */ + hw->hw_info2 &= cpu_to_hc32(fotg210, ~(QH_CMASK | QH_SMASK)); + hw->hw_info2 |= qh->period + ? cpu_to_hc32(fotg210, 1 << uframe) + : cpu_to_hc32(fotg210, QH_SMASK); + hw->hw_info2 |= c_mask; + } else + fotg210_dbg(fotg210, "reused qh %p schedule\n", qh); + + /* stuff into the periodic schedule */ + qh_link_periodic(fotg210, qh); +done: + return status; +} + +static int intr_submit( + struct fotg210_hcd *fotg210, + struct urb *urb, + struct list_head *qtd_list, + gfp_t mem_flags +) { + unsigned epnum; + unsigned long flags; + struct fotg210_qh *qh; + int status; + struct list_head empty; + + /* get endpoint and transfer/schedule data */ + epnum = urb->ep->desc.bEndpointAddress; + + spin_lock_irqsave(&fotg210->lock, flags); + + if (unlikely(!HCD_HW_ACCESSIBLE(fotg210_to_hcd(fotg210)))) { + status = -ESHUTDOWN; + goto done_not_linked; + } + status = usb_hcd_link_urb_to_ep(fotg210_to_hcd(fotg210), urb); + if (unlikely(status)) + goto done_not_linked; + + /* get qh and force any scheduling errors */ + INIT_LIST_HEAD(&empty); + qh = qh_append_tds(fotg210, urb, &empty, epnum, &urb->ep->hcpriv); + if (qh == NULL) { + status = -ENOMEM; + goto done; + } + if (qh->qh_state == QH_STATE_IDLE) { + status = qh_schedule(fotg210, qh); + if (status) + goto done; + } + + /* then queue the urb's tds to the qh */ + qh = qh_append_tds(fotg210, urb, qtd_list, epnum, &urb->ep->hcpriv); + BUG_ON(qh == NULL); + + /* ... update usbfs periodic stats */ + fotg210_to_hcd(fotg210)->self.bandwidth_int_reqs++; + +done: + if (unlikely(status)) + usb_hcd_unlink_urb_from_ep(fotg210_to_hcd(fotg210), urb); +done_not_linked: + spin_unlock_irqrestore(&fotg210->lock, flags); + if (status) + qtd_list_free(fotg210, urb, qtd_list); + + return status; +} + +static void scan_intr(struct fotg210_hcd *fotg210) +{ + struct fotg210_qh *qh; + + list_for_each_entry_safe(qh, fotg210->qh_scan_next, + &fotg210->intr_qh_list, intr_node) { + rescan: + /* clean any finished work for this qh */ + if (!list_empty(&qh->qtd_list)) { + int temp; + + /* + * Unlinks could happen here; completion reporting + * drops the lock. That's why fotg210->qh_scan_next + * always holds the next qh to scan; if the next qh + * gets unlinked then fotg210->qh_scan_next is adjusted + * in qh_unlink_periodic(). + */ + temp = qh_completions(fotg210, qh); + if (unlikely(qh->needs_rescan || + (list_empty(&qh->qtd_list) && + qh->qh_state == QH_STATE_LINKED))) + start_unlink_intr(fotg210, qh); + else if (temp != 0) + goto rescan; + } + } +} + +/*-------------------------------------------------------------------------*/ + +/* fotg210_iso_stream ops work with both ITD and SITD */ + +static struct fotg210_iso_stream * +iso_stream_alloc(gfp_t mem_flags) +{ + struct fotg210_iso_stream *stream; + + stream = kzalloc(sizeof(*stream), mem_flags); + if (likely(stream != NULL)) { + INIT_LIST_HEAD(&stream->td_list); + INIT_LIST_HEAD(&stream->free_list); + stream->next_uframe = -1; + } + return stream; +} + +static void +iso_stream_init( + struct fotg210_hcd *fotg210, + struct fotg210_iso_stream *stream, + struct usb_device *dev, + int pipe, + unsigned interval +) +{ + u32 buf1; + unsigned epnum, maxp; + int is_input; + long bandwidth; + unsigned multi; + + /* + * this might be a "high bandwidth" highspeed endpoint, + * as encoded in the ep descriptor's wMaxPacket field + */ + epnum = usb_pipeendpoint(pipe); + is_input = usb_pipein(pipe) ? USB_DIR_IN : 0; + maxp = usb_maxpacket(dev, pipe, !is_input); + if (is_input) + buf1 = (1 << 11); + else + buf1 = 0; + + maxp = max_packet(maxp); + multi = hb_mult(maxp); + buf1 |= maxp; + maxp *= multi; + + stream->buf0 = cpu_to_hc32(fotg210, (epnum << 8) | dev->devnum); + stream->buf1 = cpu_to_hc32(fotg210, buf1); + stream->buf2 = cpu_to_hc32(fotg210, multi); + + /* usbfs wants to report the average usecs per frame tied up + * when transfers on this endpoint are scheduled ... + */ + if (dev->speed == USB_SPEED_FULL) { + interval <<= 3; + stream->usecs = NS_TO_US(usb_calc_bus_time(dev->speed, + is_input, 1, maxp)); + stream->usecs /= 8; + } else { + stream->highspeed = 1; + stream->usecs = HS_USECS_ISO(maxp); + } + bandwidth = stream->usecs * 8; + bandwidth /= interval; + + stream->bandwidth = bandwidth; + stream->udev = dev; + stream->bEndpointAddress = is_input | epnum; + stream->interval = interval; + stream->maxp = maxp; +} + +static struct fotg210_iso_stream * +iso_stream_find(struct fotg210_hcd *fotg210, struct urb *urb) +{ + unsigned epnum; + struct fotg210_iso_stream *stream; + struct usb_host_endpoint *ep; + unsigned long flags; + + epnum = usb_pipeendpoint(urb->pipe); + if (usb_pipein(urb->pipe)) + ep = urb->dev->ep_in[epnum]; + else + ep = urb->dev->ep_out[epnum]; + + spin_lock_irqsave(&fotg210->lock, flags); + stream = ep->hcpriv; + + if (unlikely(stream == NULL)) { + stream = iso_stream_alloc(GFP_ATOMIC); + if (likely(stream != NULL)) { + ep->hcpriv = stream; + stream->ep = ep; + iso_stream_init(fotg210, stream, urb->dev, urb->pipe, + urb->interval); + } + + /* if dev->ep[epnum] is a QH, hw is set */ + } else if (unlikely(stream->hw != NULL)) { + fotg210_dbg(fotg210, "dev %s ep%d%s, not iso??\n", + urb->dev->devpath, epnum, + usb_pipein(urb->pipe) ? "in" : "out"); + stream = NULL; + } + + spin_unlock_irqrestore(&fotg210->lock, flags); + return stream; +} + +/*-------------------------------------------------------------------------*/ + +/* fotg210_iso_sched ops can be ITD-only or SITD-only */ + +static struct fotg210_iso_sched * +iso_sched_alloc(unsigned packets, gfp_t mem_flags) +{ + struct fotg210_iso_sched *iso_sched; + int size = sizeof(*iso_sched); + + size += packets * sizeof(struct fotg210_iso_packet); + iso_sched = kzalloc(size, mem_flags); + if (likely(iso_sched != NULL)) + INIT_LIST_HEAD(&iso_sched->td_list); + + return iso_sched; +} + +static inline void +itd_sched_init( + struct fotg210_hcd *fotg210, + struct fotg210_iso_sched *iso_sched, + struct fotg210_iso_stream *stream, + struct urb *urb +) +{ + unsigned i; + dma_addr_t dma = urb->transfer_dma; + + /* how many uframes are needed for these transfers */ + iso_sched->span = urb->number_of_packets * stream->interval; + + /* figure out per-uframe itd fields that we'll need later + * when we fit new itds into the schedule. + */ + for (i = 0; i < urb->number_of_packets; i++) { + struct fotg210_iso_packet *uframe = &iso_sched->packet[i]; + unsigned length; + dma_addr_t buf; + u32 trans; + + length = urb->iso_frame_desc[i].length; + buf = dma + urb->iso_frame_desc[i].offset; + + trans = FOTG210_ISOC_ACTIVE; + trans |= buf & 0x0fff; + if (unlikely(((i + 1) == urb->number_of_packets)) + && !(urb->transfer_flags & URB_NO_INTERRUPT)) + trans |= FOTG210_ITD_IOC; + trans |= length << 16; + uframe->transaction = cpu_to_hc32(fotg210, trans); + + /* might need to cross a buffer page within a uframe */ + uframe->bufp = (buf & ~(u64)0x0fff); + buf += length; + if (unlikely((uframe->bufp != (buf & ~(u64)0x0fff)))) + uframe->cross = 1; + } +} + +static void +iso_sched_free( + struct fotg210_iso_stream *stream, + struct fotg210_iso_sched *iso_sched +) +{ + if (!iso_sched) + return; + /* caller must hold fotg210->lock!*/ + list_splice(&iso_sched->td_list, &stream->free_list); + kfree(iso_sched); +} + +static int +itd_urb_transaction( + struct fotg210_iso_stream *stream, + struct fotg210_hcd *fotg210, + struct urb *urb, + gfp_t mem_flags +) +{ + struct fotg210_itd *itd; + dma_addr_t itd_dma; + int i; + unsigned num_itds; + struct fotg210_iso_sched *sched; + unsigned long flags; + + sched = iso_sched_alloc(urb->number_of_packets, mem_flags); + if (unlikely(sched == NULL)) + return -ENOMEM; + + itd_sched_init(fotg210, sched, stream, urb); + + if (urb->interval < 8) + num_itds = 1 + (sched->span + 7) / 8; + else + num_itds = urb->number_of_packets; + + /* allocate/init ITDs */ + spin_lock_irqsave(&fotg210->lock, flags); + for (i = 0; i < num_itds; i++) { + + /* + * Use iTDs from the free list, but not iTDs that may + * still be in use by the hardware. + */ + if (likely(!list_empty(&stream->free_list))) { + itd = list_first_entry(&stream->free_list, + struct fotg210_itd, itd_list); + if (itd->frame == fotg210->now_frame) + goto alloc_itd; + list_del(&itd->itd_list); + itd_dma = itd->itd_dma; + } else { + alloc_itd: + spin_unlock_irqrestore(&fotg210->lock, flags); + itd = dma_pool_alloc(fotg210->itd_pool, mem_flags, + &itd_dma); + spin_lock_irqsave(&fotg210->lock, flags); + if (!itd) { + iso_sched_free(stream, sched); + spin_unlock_irqrestore(&fotg210->lock, flags); + return -ENOMEM; + } + } + + memset(itd, 0, sizeof(*itd)); + itd->itd_dma = itd_dma; + list_add(&itd->itd_list, &sched->td_list); + } + spin_unlock_irqrestore(&fotg210->lock, flags); + + /* temporarily store schedule info in hcpriv */ + urb->hcpriv = sched; + urb->error_count = 0; + return 0; +} + +/*-------------------------------------------------------------------------*/ + +static inline int +itd_slot_ok( + struct fotg210_hcd *fotg210, + u32 mod, + u32 uframe, + u8 usecs, + u32 period +) +{ + uframe %= period; + do { + /* can't commit more than uframe_periodic_max usec */ + if (periodic_usecs(fotg210, uframe >> 3, uframe & 0x7) + > (fotg210->uframe_periodic_max - usecs)) + return 0; + + /* we know urb->interval is 2^N uframes */ + uframe += period; + } while (uframe < mod); + return 1; +} + +/* + * This scheduler plans almost as far into the future as it has actual + * periodic schedule slots. (Affected by TUNE_FLS, which defaults to + * "as small as possible" to be cache-friendlier.) That limits the size + * transfers you can stream reliably; avoid more than 64 msec per urb. + * Also avoid queue depths of less than fotg210's worst irq latency (affected + * by the per-urb URB_NO_INTERRUPT hint, the log2_irq_thresh module parameter, + * and other factors); or more than about 230 msec total (for portability, + * given FOTG210_TUNE_FLS and the slop). Or, write a smarter scheduler! + */ + +#define SCHEDULE_SLOP 80 /* microframes */ + +static int +iso_stream_schedule( + struct fotg210_hcd *fotg210, + struct urb *urb, + struct fotg210_iso_stream *stream +) +{ + u32 now, next, start, period, span; + int status; + unsigned mod = fotg210->periodic_size << 3; + struct fotg210_iso_sched *sched = urb->hcpriv; + + period = urb->interval; + span = sched->span; + + if (span > mod - SCHEDULE_SLOP) { + fotg210_dbg(fotg210, "iso request %p too long\n", urb); + status = -EFBIG; + goto fail; + } + + now = fotg210_read_frame_index(fotg210) & (mod - 1); + + /* Typical case: reuse current schedule, stream is still active. + * Hopefully there are no gaps from the host falling behind + * (irq delays etc), but if there are we'll take the next + * slot in the schedule, implicitly assuming URB_ISO_ASAP. + */ + if (likely(!list_empty(&stream->td_list))) { + u32 excess; + + /* For high speed devices, allow scheduling within the + * isochronous scheduling threshold. For full speed devices + * and Intel PCI-based controllers, don't (work around for + * Intel ICH9 bug). + */ + if (!stream->highspeed && fotg210->fs_i_thresh) + next = now + fotg210->i_thresh; + else + next = now; + + /* Fell behind (by up to twice the slop amount)? + * We decide based on the time of the last currently-scheduled + * slot, not the time of the next available slot. + */ + excess = (stream->next_uframe - period - next) & (mod - 1); + if (excess >= mod - 2 * SCHEDULE_SLOP) + start = next + excess - mod + period * + DIV_ROUND_UP(mod - excess, period); + else + start = next + excess + period; + if (start - now >= mod) { + fotg210_dbg(fotg210, "request %p would overflow (%d+%d >= %d)\n", + urb, start - now - period, period, + mod); + status = -EFBIG; + goto fail; + } + } + + /* need to schedule; when's the next (u)frame we could start? + * this is bigger than fotg210->i_thresh allows; scheduling itself + * isn't free, the slop should handle reasonably slow cpus. it + * can also help high bandwidth if the dma and irq loads don't + * jump until after the queue is primed. + */ + else { + int done = 0; + start = SCHEDULE_SLOP + (now & ~0x07); + + /* NOTE: assumes URB_ISO_ASAP, to limit complexity/bugs */ + + /* find a uframe slot with enough bandwidth. + * Early uframes are more precious because full-speed + * iso IN transfers can't use late uframes, + * and therefore they should be allocated last. + */ + next = start; + start += period; + do { + start--; + /* check schedule: enough space? */ + if (itd_slot_ok(fotg210, mod, start, + stream->usecs, period)) + done = 1; + } while (start > next && !done); + + /* no room in the schedule */ + if (!done) { + fotg210_dbg(fotg210, "iso resched full %p (now %d max %d)\n", + urb, now, now + mod); + status = -ENOSPC; + goto fail; + } + } + + /* Tried to schedule too far into the future? */ + if (unlikely(start - now + span - period + >= mod - 2 * SCHEDULE_SLOP)) { + fotg210_dbg(fotg210, "request %p would overflow (%d+%d >= %d)\n", + urb, start - now, span - period, + mod - 2 * SCHEDULE_SLOP); + status = -EFBIG; + goto fail; + } + + stream->next_uframe = start & (mod - 1); + + /* report high speed start in uframes; full speed, in frames */ + urb->start_frame = stream->next_uframe; + if (!stream->highspeed) + urb->start_frame >>= 3; + + /* Make sure scan_isoc() sees these */ + if (fotg210->isoc_count == 0) + fotg210->next_frame = now >> 3; + return 0; + + fail: + iso_sched_free(stream, sched); + urb->hcpriv = NULL; + return status; +} + +/*-------------------------------------------------------------------------*/ + +static inline void +itd_init(struct fotg210_hcd *fotg210, struct fotg210_iso_stream *stream, + struct fotg210_itd *itd) +{ + int i; + + /* it's been recently zeroed */ + itd->hw_next = FOTG210_LIST_END(fotg210); + itd->hw_bufp[0] = stream->buf0; + itd->hw_bufp[1] = stream->buf1; + itd->hw_bufp[2] = stream->buf2; + + for (i = 0; i < 8; i++) + itd->index[i] = -1; + + /* All other fields are filled when scheduling */ +} + +static inline void +itd_patch( + struct fotg210_hcd *fotg210, + struct fotg210_itd *itd, + struct fotg210_iso_sched *iso_sched, + unsigned index, + u16 uframe +) +{ + struct fotg210_iso_packet *uf = &iso_sched->packet[index]; + unsigned pg = itd->pg; + + uframe &= 0x07; + itd->index[uframe] = index; + + itd->hw_transaction[uframe] = uf->transaction; + itd->hw_transaction[uframe] |= cpu_to_hc32(fotg210, pg << 12); + itd->hw_bufp[pg] |= cpu_to_hc32(fotg210, uf->bufp & ~(u32)0); + itd->hw_bufp_hi[pg] |= cpu_to_hc32(fotg210, (u32)(uf->bufp >> 32)); + + /* iso_frame_desc[].offset must be strictly increasing */ + if (unlikely(uf->cross)) { + u64 bufp = uf->bufp + 4096; + + itd->pg = ++pg; + itd->hw_bufp[pg] |= cpu_to_hc32(fotg210, bufp & ~(u32)0); + itd->hw_bufp_hi[pg] |= cpu_to_hc32(fotg210, (u32)(bufp >> 32)); + } +} + +static inline void +itd_link(struct fotg210_hcd *fotg210, unsigned frame, struct fotg210_itd *itd) +{ + union fotg210_shadow *prev = &fotg210->pshadow[frame]; + __hc32 *hw_p = &fotg210->periodic[frame]; + union fotg210_shadow here = *prev; + __hc32 type = 0; + + /* skip any iso nodes which might belong to previous microframes */ + while (here.ptr) { + type = Q_NEXT_TYPE(fotg210, *hw_p); + if (type == cpu_to_hc32(fotg210, Q_TYPE_QH)) + break; + prev = periodic_next_shadow(fotg210, prev, type); + hw_p = shadow_next_periodic(fotg210, &here, type); + here = *prev; + } + + itd->itd_next = here; + itd->hw_next = *hw_p; + prev->itd = itd; + itd->frame = frame; + wmb(); + *hw_p = cpu_to_hc32(fotg210, itd->itd_dma | Q_TYPE_ITD); +} + +/* fit urb's itds into the selected schedule slot; activate as needed */ +static void itd_link_urb( + struct fotg210_hcd *fotg210, + struct urb *urb, + unsigned mod, + struct fotg210_iso_stream *stream +) +{ + int packet; + unsigned next_uframe, uframe, frame; + struct fotg210_iso_sched *iso_sched = urb->hcpriv; + struct fotg210_itd *itd; + + next_uframe = stream->next_uframe & (mod - 1); + + if (unlikely(list_empty(&stream->td_list))) { + fotg210_to_hcd(fotg210)->self.bandwidth_allocated + += stream->bandwidth; + fotg210_vdbg(fotg210, + "schedule devp %s ep%d%s-iso period %d start %d.%d\n", + urb->dev->devpath, stream->bEndpointAddress & 0x0f, + (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out", + urb->interval, + next_uframe >> 3, next_uframe & 0x7); + } + + /* fill iTDs uframe by uframe */ + for (packet = 0, itd = NULL; packet < urb->number_of_packets;) { + if (itd == NULL) { + /* ASSERT: we have all necessary itds */ + + /* ASSERT: no itds for this endpoint in this uframe */ + + itd = list_entry(iso_sched->td_list.next, + struct fotg210_itd, itd_list); + list_move_tail(&itd->itd_list, &stream->td_list); + itd->stream = stream; + itd->urb = urb; + itd_init(fotg210, stream, itd); + } + + uframe = next_uframe & 0x07; + frame = next_uframe >> 3; + + itd_patch(fotg210, itd, iso_sched, packet, uframe); + + next_uframe += stream->interval; + next_uframe &= mod - 1; + packet++; + + /* link completed itds into the schedule */ + if (((next_uframe >> 3) != frame) + || packet == urb->number_of_packets) { + itd_link(fotg210, frame & (fotg210->periodic_size - 1), + itd); + itd = NULL; + } + } + stream->next_uframe = next_uframe; + + /* don't need that schedule data any more */ + iso_sched_free(stream, iso_sched); + urb->hcpriv = NULL; + + ++fotg210->isoc_count; + enable_periodic(fotg210); +} + +#define ISO_ERRS (FOTG210_ISOC_BUF_ERR | FOTG210_ISOC_BABBLE |\ + FOTG210_ISOC_XACTERR) + +/* Process and recycle a completed ITD. Return true iff its urb completed, + * and hence its completion callback probably added things to the hardware + * schedule. + * + * Note that we carefully avoid recycling this descriptor until after any + * completion callback runs, so that it won't be reused quickly. That is, + * assuming (a) no more than two urbs per frame on this endpoint, and also + * (b) only this endpoint's completions submit URBs. It seems some silicon + * corrupts things if you reuse completed descriptors very quickly... + */ +static bool itd_complete(struct fotg210_hcd *fotg210, struct fotg210_itd *itd) +{ + struct urb *urb = itd->urb; + struct usb_iso_packet_descriptor *desc; + u32 t; + unsigned uframe; + int urb_index = -1; + struct fotg210_iso_stream *stream = itd->stream; + struct usb_device *dev; + bool retval = false; + + /* for each uframe with a packet */ + for (uframe = 0; uframe < 8; uframe++) { + if (likely(itd->index[uframe] == -1)) + continue; + urb_index = itd->index[uframe]; + desc = &urb->iso_frame_desc[urb_index]; + + t = hc32_to_cpup(fotg210, &itd->hw_transaction[uframe]); + itd->hw_transaction[uframe] = 0; + + /* report transfer status */ + if (unlikely(t & ISO_ERRS)) { + urb->error_count++; + if (t & FOTG210_ISOC_BUF_ERR) + desc->status = usb_pipein(urb->pipe) + ? -ENOSR /* hc couldn't read */ + : -ECOMM; /* hc couldn't write */ + else if (t & FOTG210_ISOC_BABBLE) + desc->status = -EOVERFLOW; + else /* (t & FOTG210_ISOC_XACTERR) */ + desc->status = -EPROTO; + + /* HC need not update length with this error */ + if (!(t & FOTG210_ISOC_BABBLE)) { + desc->actual_length = + fotg210_itdlen(urb, desc, t); + urb->actual_length += desc->actual_length; + } + } else if (likely((t & FOTG210_ISOC_ACTIVE) == 0)) { + desc->status = 0; + desc->actual_length = fotg210_itdlen(urb, desc, t); + urb->actual_length += desc->actual_length; + } else { + /* URB was too late */ + desc->status = -EXDEV; + } + } + + /* handle completion now? */ + if (likely((urb_index + 1) != urb->number_of_packets)) + goto done; + + /* ASSERT: it's really the last itd for this urb + list_for_each_entry (itd, &stream->td_list, itd_list) + BUG_ON (itd->urb == urb); + */ + + /* give urb back to the driver; completion often (re)submits */ + dev = urb->dev; + fotg210_urb_done(fotg210, urb, 0); + retval = true; + urb = NULL; + + --fotg210->isoc_count; + disable_periodic(fotg210); + + if (unlikely(list_is_singular(&stream->td_list))) { + fotg210_to_hcd(fotg210)->self.bandwidth_allocated + -= stream->bandwidth; + fotg210_vdbg(fotg210, + "deschedule devp %s ep%d%s-iso\n", + dev->devpath, stream->bEndpointAddress & 0x0f, + (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out"); + } + +done: + itd->urb = NULL; + + /* Add to the end of the free list for later reuse */ + list_move_tail(&itd->itd_list, &stream->free_list); + + /* Recycle the iTDs when the pipeline is empty (ep no longer in use) */ + if (list_empty(&stream->td_list)) { + list_splice_tail_init(&stream->free_list, + &fotg210->cached_itd_list); + start_free_itds(fotg210); + } + + return retval; +} + +/*-------------------------------------------------------------------------*/ + +static int itd_submit(struct fotg210_hcd *fotg210, struct urb *urb, + gfp_t mem_flags) +{ + int status = -EINVAL; + unsigned long flags; + struct fotg210_iso_stream *stream; + + /* Get iso_stream head */ + stream = iso_stream_find(fotg210, urb); + if (unlikely(stream == NULL)) { + fotg210_dbg(fotg210, "can't get iso stream\n"); + return -ENOMEM; + } + if (unlikely(urb->interval != stream->interval && + fotg210_port_speed(fotg210, 0) == + USB_PORT_STAT_HIGH_SPEED)) { + fotg210_dbg(fotg210, "can't change iso interval %d --> %d\n", + stream->interval, urb->interval); + goto done; + } + +#ifdef FOTG210_URB_TRACE + fotg210_dbg(fotg210, + "%s %s urb %p ep%d%s len %d, %d pkts %d uframes[%p]\n", + __func__, urb->dev->devpath, urb, + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "in" : "out", + urb->transfer_buffer_length, + urb->number_of_packets, urb->interval, + stream); +#endif + + /* allocate ITDs w/o locking anything */ + status = itd_urb_transaction(stream, fotg210, urb, mem_flags); + if (unlikely(status < 0)) { + fotg210_dbg(fotg210, "can't init itds\n"); + goto done; + } + + /* schedule ... need to lock */ + spin_lock_irqsave(&fotg210->lock, flags); + if (unlikely(!HCD_HW_ACCESSIBLE(fotg210_to_hcd(fotg210)))) { + status = -ESHUTDOWN; + goto done_not_linked; + } + status = usb_hcd_link_urb_to_ep(fotg210_to_hcd(fotg210), urb); + if (unlikely(status)) + goto done_not_linked; + status = iso_stream_schedule(fotg210, urb, stream); + if (likely(status == 0)) + itd_link_urb(fotg210, urb, fotg210->periodic_size << 3, stream); + else + usb_hcd_unlink_urb_from_ep(fotg210_to_hcd(fotg210), urb); + done_not_linked: + spin_unlock_irqrestore(&fotg210->lock, flags); + done: + return status; +} + +/*-------------------------------------------------------------------------*/ + +static void scan_isoc(struct fotg210_hcd *fotg210) +{ + unsigned uf, now_frame, frame; + unsigned fmask = fotg210->periodic_size - 1; + bool modified, live; + + /* + * When running, scan from last scan point up to "now" + * else clean up by scanning everything that's left. + * Touches as few pages as possible: cache-friendly. + */ + if (fotg210->rh_state >= FOTG210_RH_RUNNING) { + uf = fotg210_read_frame_index(fotg210); + now_frame = (uf >> 3) & fmask; + live = true; + } else { + now_frame = (fotg210->next_frame - 1) & fmask; + live = false; + } + fotg210->now_frame = now_frame; + + frame = fotg210->next_frame; + for (;;) { + union fotg210_shadow q, *q_p; + __hc32 type, *hw_p; + +restart: + /* scan each element in frame's queue for completions */ + q_p = &fotg210->pshadow[frame]; + hw_p = &fotg210->periodic[frame]; + q.ptr = q_p->ptr; + type = Q_NEXT_TYPE(fotg210, *hw_p); + modified = false; + + while (q.ptr != NULL) { + switch (hc32_to_cpu(fotg210, type)) { + case Q_TYPE_ITD: + /* If this ITD is still active, leave it for + * later processing ... check the next entry. + * No need to check for activity unless the + * frame is current. + */ + if (frame == now_frame && live) { + rmb(); + for (uf = 0; uf < 8; uf++) { + if (q.itd->hw_transaction[uf] & + ITD_ACTIVE(fotg210)) + break; + } + if (uf < 8) { + q_p = &q.itd->itd_next; + hw_p = &q.itd->hw_next; + type = Q_NEXT_TYPE(fotg210, + q.itd->hw_next); + q = *q_p; + break; + } + } + + /* Take finished ITDs out of the schedule + * and process them: recycle, maybe report + * URB completion. HC won't cache the + * pointer for much longer, if at all. + */ + *q_p = q.itd->itd_next; + *hw_p = q.itd->hw_next; + type = Q_NEXT_TYPE(fotg210, q.itd->hw_next); + wmb(); + modified = itd_complete(fotg210, q.itd); + q = *q_p; + break; + default: + fotg210_dbg(fotg210, "corrupt type %d frame %d shadow %p\n", + type, frame, q.ptr); + /* FALL THROUGH */ + case Q_TYPE_QH: + case Q_TYPE_FSTN: + /* End of the iTDs and siTDs */ + q.ptr = NULL; + break; + } + + /* assume completion callbacks modify the queue */ + if (unlikely(modified && fotg210->isoc_count > 0)) + goto restart; + } + + /* Stop when we have reached the current frame */ + if (frame == now_frame) + break; + frame = (frame + 1) & fmask; + } + fotg210->next_frame = now_frame; +} +/*-------------------------------------------------------------------------*/ +/* + * Display / Set uframe_periodic_max + */ +static ssize_t show_uframe_periodic_max(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct fotg210_hcd *fotg210; + int n; + + fotg210 = hcd_to_fotg210(bus_to_hcd(dev_get_drvdata(dev))); + n = scnprintf(buf, PAGE_SIZE, "%d\n", fotg210->uframe_periodic_max); + return n; +} + + +static ssize_t store_uframe_periodic_max(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fotg210_hcd *fotg210; + unsigned uframe_periodic_max; + unsigned frame, uframe; + unsigned short allocated_max; + unsigned long flags; + ssize_t ret; + + fotg210 = hcd_to_fotg210(bus_to_hcd(dev_get_drvdata(dev))); + if (kstrtouint(buf, 0, &uframe_periodic_max) < 0) + return -EINVAL; + + if (uframe_periodic_max < 100 || uframe_periodic_max >= 125) { + fotg210_info(fotg210, "rejecting invalid request for uframe_periodic_max=%u\n", + uframe_periodic_max); + return -EINVAL; + } + + ret = -EINVAL; + + /* + * lock, so that our checking does not race with possible periodic + * bandwidth allocation through submitting new urbs. + */ + spin_lock_irqsave(&fotg210->lock, flags); + + /* + * for request to decrease max periodic bandwidth, we have to check + * every microframe in the schedule to see whether the decrease is + * possible. + */ + if (uframe_periodic_max < fotg210->uframe_periodic_max) { + allocated_max = 0; + + for (frame = 0; frame < fotg210->periodic_size; ++frame) + for (uframe = 0; uframe < 7; ++uframe) + allocated_max = max(allocated_max, + periodic_usecs(fotg210, frame, uframe)); + + if (allocated_max > uframe_periodic_max) { + fotg210_info(fotg210, + "cannot decrease uframe_periodic_max becase " + "periodic bandwidth is already allocated " + "(%u > %u)\n", + allocated_max, uframe_periodic_max); + goto out_unlock; + } + } + + /* increasing is always ok */ + + fotg210_info(fotg210, "setting max periodic bandwidth to %u%% (== %u usec/uframe)\n", + 100 * uframe_periodic_max/125, uframe_periodic_max); + + if (uframe_periodic_max != 100) + fotg210_warn(fotg210, "max periodic bandwidth set is non-standard\n"); + + fotg210->uframe_periodic_max = uframe_periodic_max; + ret = count; + +out_unlock: + spin_unlock_irqrestore(&fotg210->lock, flags); + return ret; +} + +static DEVICE_ATTR(uframe_periodic_max, 0644, show_uframe_periodic_max, + store_uframe_periodic_max); + +static inline int create_sysfs_files(struct fotg210_hcd *fotg210) +{ + struct device *controller = fotg210_to_hcd(fotg210)->self.controller; + int i = 0; + + if (i) + goto out; + + i = device_create_file(controller, &dev_attr_uframe_periodic_max); +out: + return i; +} + +static inline void remove_sysfs_files(struct fotg210_hcd *fotg210) +{ + struct device *controller = fotg210_to_hcd(fotg210)->self.controller; + + device_remove_file(controller, &dev_attr_uframe_periodic_max); +} +/*-------------------------------------------------------------------------*/ + +/* On some systems, leaving remote wakeup enabled prevents system shutdown. + * The firmware seems to think that powering off is a wakeup event! + * This routine turns off remote wakeup and everything else, on all ports. + */ +static void fotg210_turn_off_all_ports(struct fotg210_hcd *fotg210) +{ + u32 __iomem *status_reg = &fotg210->regs->port_status; + + fotg210_writel(fotg210, PORT_RWC_BITS, status_reg); +} + +/* + * Halt HC, turn off all ports, and let the BIOS use the companion controllers. + * Must be called with interrupts enabled and the lock not held. + */ +static void fotg210_silence_controller(struct fotg210_hcd *fotg210) +{ + fotg210_halt(fotg210); + + spin_lock_irq(&fotg210->lock); + fotg210->rh_state = FOTG210_RH_HALTED; + fotg210_turn_off_all_ports(fotg210); + spin_unlock_irq(&fotg210->lock); +} + +/* fotg210_shutdown kick in for silicon on any bus (not just pci, etc). + * This forcibly disables dma and IRQs, helping kexec and other cases + * where the next system software may expect clean state. + */ +static void fotg210_shutdown(struct usb_hcd *hcd) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + + spin_lock_irq(&fotg210->lock); + fotg210->shutdown = true; + fotg210->rh_state = FOTG210_RH_STOPPING; + fotg210->enabled_hrtimer_events = 0; + spin_unlock_irq(&fotg210->lock); + + fotg210_silence_controller(fotg210); + + hrtimer_cancel(&fotg210->hrtimer); +} + +/*-------------------------------------------------------------------------*/ + +/* + * fotg210_work is called from some interrupts, timers, and so on. + * it calls driver completion functions, after dropping fotg210->lock. + */ +static void fotg210_work(struct fotg210_hcd *fotg210) +{ + /* another CPU may drop fotg210->lock during a schedule scan while + * it reports urb completions. this flag guards against bogus + * attempts at re-entrant schedule scanning. + */ + if (fotg210->scanning) { + fotg210->need_rescan = true; + return; + } + fotg210->scanning = true; + + rescan: + fotg210->need_rescan = false; + if (fotg210->async_count) + scan_async(fotg210); + if (fotg210->intr_count > 0) + scan_intr(fotg210); + if (fotg210->isoc_count > 0) + scan_isoc(fotg210); + if (fotg210->need_rescan) + goto rescan; + fotg210->scanning = false; + + /* the IO watchdog guards against hardware or driver bugs that + * misplace IRQs, and should let us run completely without IRQs. + * such lossage has been observed on both VT6202 and VT8235. + */ + turn_on_io_watchdog(fotg210); +} + +/* + * Called when the fotg210_hcd module is removed. + */ +static void fotg210_stop(struct usb_hcd *hcd) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + + fotg210_dbg(fotg210, "stop\n"); + + /* no more interrupts ... */ + + spin_lock_irq(&fotg210->lock); + fotg210->enabled_hrtimer_events = 0; + spin_unlock_irq(&fotg210->lock); + + fotg210_quiesce(fotg210); + fotg210_silence_controller(fotg210); + fotg210_reset(fotg210); + + hrtimer_cancel(&fotg210->hrtimer); + remove_sysfs_files(fotg210); + remove_debug_files(fotg210); + + /* root hub is shut down separately (first, when possible) */ + spin_lock_irq(&fotg210->lock); + end_free_itds(fotg210); + spin_unlock_irq(&fotg210->lock); + fotg210_mem_cleanup(fotg210); + +#ifdef FOTG210_STATS + fotg210_dbg(fotg210, "irq normal %ld err %ld iaa %ld (lost %ld)\n", + fotg210->stats.normal, fotg210->stats.error, fotg210->stats.iaa, + fotg210->stats.lost_iaa); + fotg210_dbg(fotg210, "complete %ld unlink %ld\n", + fotg210->stats.complete, fotg210->stats.unlink); +#endif + + dbg_status(fotg210, "fotg210_stop completed", + fotg210_readl(fotg210, &fotg210->regs->status)); +} + +/* one-time init, only for memory state */ +static int hcd_fotg210_init(struct usb_hcd *hcd) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + u32 temp; + int retval; + u32 hcc_params; + struct fotg210_qh_hw *hw; + + spin_lock_init(&fotg210->lock); + + /* + * keep io watchdog by default, those good HCDs could turn off it later + */ + fotg210->need_io_watchdog = 1; + + hrtimer_init(&fotg210->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + fotg210->hrtimer.function = fotg210_hrtimer_func; + fotg210->next_hrtimer_event = FOTG210_HRTIMER_NO_EVENT; + + hcc_params = fotg210_readl(fotg210, &fotg210->caps->hcc_params); + + /* + * by default set standard 80% (== 100 usec/uframe) max periodic + * bandwidth as required by USB 2.0 + */ + fotg210->uframe_periodic_max = 100; + + /* + * hw default: 1K periodic list heads, one per frame. + * periodic_size can shrink by USBCMD update if hcc_params allows. + */ + fotg210->periodic_size = DEFAULT_I_TDPS; + INIT_LIST_HEAD(&fotg210->intr_qh_list); + INIT_LIST_HEAD(&fotg210->cached_itd_list); + + if (HCC_PGM_FRAMELISTLEN(hcc_params)) { + /* periodic schedule size can be smaller than default */ + switch (FOTG210_TUNE_FLS) { + case 0: + fotg210->periodic_size = 1024; + break; + case 1: + fotg210->periodic_size = 512; + break; + case 2: + fotg210->periodic_size = 256; + break; + default: + BUG(); + } + } + retval = fotg210_mem_init(fotg210, GFP_KERNEL); + if (retval < 0) + return retval; + + /* controllers may cache some of the periodic schedule ... */ + fotg210->i_thresh = 2; + + /* + * dedicate a qh for the async ring head, since we couldn't unlink + * a 'real' qh without stopping the async schedule [4.8]. use it + * as the 'reclamation list head' too. + * its dummy is used in hw_alt_next of many tds, to prevent the qh + * from automatically advancing to the next td after short reads. + */ + fotg210->async->qh_next.qh = NULL; + hw = fotg210->async->hw; + hw->hw_next = QH_NEXT(fotg210, fotg210->async->qh_dma); + hw->hw_info1 = cpu_to_hc32(fotg210, QH_HEAD); + hw->hw_token = cpu_to_hc32(fotg210, QTD_STS_HALT); + hw->hw_qtd_next = FOTG210_LIST_END(fotg210); + fotg210->async->qh_state = QH_STATE_LINKED; + hw->hw_alt_next = QTD_NEXT(fotg210, fotg210->async->dummy->qtd_dma); + + /* clear interrupt enables, set irq latency */ + if (log2_irq_thresh < 0 || log2_irq_thresh > 6) + log2_irq_thresh = 0; + temp = 1 << (16 + log2_irq_thresh); + if (HCC_CANPARK(hcc_params)) { + /* HW default park == 3, on hardware that supports it (like + * NVidia and ALI silicon), maximizes throughput on the async + * schedule by avoiding QH fetches between transfers. + * + * With fast usb storage devices and NForce2, "park" seems to + * make problems: throughput reduction (!), data errors... + */ + if (park) { + park = min_t(unsigned, park, 3); + temp |= CMD_PARK; + temp |= park << 8; + } + fotg210_dbg(fotg210, "park %d\n", park); + } + if (HCC_PGM_FRAMELISTLEN(hcc_params)) { + /* periodic schedule size can be smaller than default */ + temp &= ~(3 << 2); + temp |= (FOTG210_TUNE_FLS << 2); + } + fotg210->command = temp; + + /* Accept arbitrarily long scatter-gather lists */ + if (!(hcd->driver->flags & HCD_LOCAL_MEM)) + hcd->self.sg_tablesize = ~0; + return 0; +} + +/* start HC running; it's halted, hcd_fotg210_init() has been run (once) */ +static int fotg210_run(struct usb_hcd *hcd) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + u32 temp; + u32 hcc_params; + + hcd->uses_new_polling = 1; + + /* EHCI spec section 4.1 */ + + fotg210_writel(fotg210, fotg210->periodic_dma, + &fotg210->regs->frame_list); + fotg210_writel(fotg210, (u32)fotg210->async->qh_dma, + &fotg210->regs->async_next); + + /* + * hcc_params controls whether fotg210->regs->segment must (!!!) + * be used; it constrains QH/ITD/SITD and QTD locations. + * pci_pool consistent memory always uses segment zero. + * streaming mappings for I/O buffers, like pci_map_single(), + * can return segments above 4GB, if the device allows. + * + * NOTE: the dma mask is visible through dma_supported(), so + * drivers can pass this info along ... like NETIF_F_HIGHDMA, + * Scsi_Host.highmem_io, and so forth. It's readonly to all + * host side drivers though. + */ + hcc_params = fotg210_readl(fotg210, &fotg210->caps->hcc_params); + + /* + * Philips, Intel, and maybe others need CMD_RUN before the + * root hub will detect new devices (why?); NEC doesn't + */ + fotg210->command &= ~(CMD_IAAD|CMD_PSE|CMD_ASE|CMD_RESET); + fotg210->command |= CMD_RUN; + fotg210_writel(fotg210, fotg210->command, &fotg210->regs->command); + dbg_cmd(fotg210, "init", fotg210->command); + + /* + * Start, enabling full USB 2.0 functionality ... usb 1.1 devices + * are explicitly handed to companion controller(s), so no TT is + * involved with the root hub. (Except where one is integrated, + * and there's no companion controller unless maybe for USB OTG.) + * + * Turning on the CF flag will transfer ownership of all ports + * from the companions to the EHCI controller. If any of the + * companions are in the middle of a port reset at the time, it + * could cause trouble. Write-locking ehci_cf_port_reset_rwsem + * guarantees that no resets are in progress. After we set CF, + * a short delay lets the hardware catch up; new resets shouldn't + * be started before the port switching actions could complete. + */ + down_write(&ehci_cf_port_reset_rwsem); + fotg210->rh_state = FOTG210_RH_RUNNING; + /* unblock posted writes */ + fotg210_readl(fotg210, &fotg210->regs->command); + msleep(5); + up_write(&ehci_cf_port_reset_rwsem); + fotg210->last_periodic_enable = ktime_get_real(); + + temp = HC_VERSION(fotg210, + fotg210_readl(fotg210, &fotg210->caps->hc_capbase)); + fotg210_info(fotg210, + "USB %x.%x started, EHCI %x.%02x\n", + ((fotg210->sbrn & 0xf0)>>4), (fotg210->sbrn & 0x0f), + temp >> 8, temp & 0xff); + + fotg210_writel(fotg210, INTR_MASK, + &fotg210->regs->intr_enable); /* Turn On Interrupts */ + + /* GRR this is run-once init(), being done every time the HC starts. + * So long as they're part of class devices, we can't do it init() + * since the class device isn't created that early. + */ + create_debug_files(fotg210); + create_sysfs_files(fotg210); + + return 0; +} + +static int fotg210_setup(struct usb_hcd *hcd) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + int retval; + + fotg210->regs = (void __iomem *)fotg210->caps + + HC_LENGTH(fotg210, + fotg210_readl(fotg210, &fotg210->caps->hc_capbase)); + dbg_hcs_params(fotg210, "reset"); + dbg_hcc_params(fotg210, "reset"); + + /* cache this readonly data; minimize chip reads */ + fotg210->hcs_params = fotg210_readl(fotg210, + &fotg210->caps->hcs_params); + + fotg210->sbrn = HCD_USB2; + + /* data structure init */ + retval = hcd_fotg210_init(hcd); + if (retval) + return retval; + + retval = fotg210_halt(fotg210); + if (retval) + return retval; + + fotg210_reset(fotg210); + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +static irqreturn_t fotg210_irq(struct usb_hcd *hcd) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + u32 status, masked_status, pcd_status = 0, cmd; + int bh; + + spin_lock(&fotg210->lock); + + status = fotg210_readl(fotg210, &fotg210->regs->status); + + /* e.g. cardbus physical eject */ + if (status == ~(u32) 0) { + fotg210_dbg(fotg210, "device removed\n"); + goto dead; + } + + /* + * We don't use STS_FLR, but some controllers don't like it to + * remain on, so mask it out along with the other status bits. + */ + masked_status = status & (INTR_MASK | STS_FLR); + + /* Shared IRQ? */ + if (!masked_status || + unlikely(fotg210->rh_state == FOTG210_RH_HALTED)) { + spin_unlock(&fotg210->lock); + return IRQ_NONE; + } + + /* clear (just) interrupts */ + fotg210_writel(fotg210, masked_status, &fotg210->regs->status); + cmd = fotg210_readl(fotg210, &fotg210->regs->command); + bh = 0; + +#ifdef VERBOSE_DEBUG + /* unrequested/ignored: Frame List Rollover */ + dbg_status(fotg210, "irq", status); +#endif + + /* INT, ERR, and IAA interrupt rates can be throttled */ + + /* normal [4.15.1.2] or error [4.15.1.1] completion */ + if (likely((status & (STS_INT|STS_ERR)) != 0)) { + if (likely((status & STS_ERR) == 0)) + COUNT(fotg210->stats.normal); + else + COUNT(fotg210->stats.error); + bh = 1; + } + + /* complete the unlinking of some qh [4.15.2.3] */ + if (status & STS_IAA) { + + /* Turn off the IAA watchdog */ + fotg210->enabled_hrtimer_events &= + ~BIT(FOTG210_HRTIMER_IAA_WATCHDOG); + + /* + * Mild optimization: Allow another IAAD to reset the + * hrtimer, if one occurs before the next expiration. + * In theory we could always cancel the hrtimer, but + * tests show that about half the time it will be reset + * for some other event anyway. + */ + if (fotg210->next_hrtimer_event == FOTG210_HRTIMER_IAA_WATCHDOG) + ++fotg210->next_hrtimer_event; + + /* guard against (alleged) silicon errata */ + if (cmd & CMD_IAAD) + fotg210_dbg(fotg210, "IAA with IAAD still set?\n"); + if (fotg210->async_iaa) { + COUNT(fotg210->stats.iaa); + end_unlink_async(fotg210); + } else + fotg210_dbg(fotg210, "IAA with nothing unlinked?\n"); + } + + /* remote wakeup [4.3.1] */ + if (status & STS_PCD) { + int pstatus; + u32 __iomem *status_reg = &fotg210->regs->port_status; + + /* kick root hub later */ + pcd_status = status; + + /* resume root hub? */ + if (fotg210->rh_state == FOTG210_RH_SUSPENDED) + usb_hcd_resume_root_hub(hcd); + + pstatus = fotg210_readl(fotg210, status_reg); + + if (test_bit(0, &fotg210->suspended_ports) && + ((pstatus & PORT_RESUME) || + !(pstatus & PORT_SUSPEND)) && + (pstatus & PORT_PE) && + fotg210->reset_done[0] == 0) { + + /* start 20 msec resume signaling from this port, + * and make khubd collect PORT_STAT_C_SUSPEND to + * stop that signaling. Use 5 ms extra for safety, + * like usb_port_resume() does. + */ + fotg210->reset_done[0] = jiffies + msecs_to_jiffies(25); + set_bit(0, &fotg210->resuming_ports); + fotg210_dbg(fotg210, "port 1 remote wakeup\n"); + mod_timer(&hcd->rh_timer, fotg210->reset_done[0]); + } + } + + /* PCI errors [4.15.2.4] */ + if (unlikely((status & STS_FATAL) != 0)) { + fotg210_err(fotg210, "fatal error\n"); + dbg_cmd(fotg210, "fatal", cmd); + dbg_status(fotg210, "fatal", status); +dead: + usb_hc_died(hcd); + + /* Don't let the controller do anything more */ + fotg210->shutdown = true; + fotg210->rh_state = FOTG210_RH_STOPPING; + fotg210->command &= ~(CMD_RUN | CMD_ASE | CMD_PSE); + fotg210_writel(fotg210, fotg210->command, + &fotg210->regs->command); + fotg210_writel(fotg210, 0, &fotg210->regs->intr_enable); + fotg210_handle_controller_death(fotg210); + + /* Handle completions when the controller stops */ + bh = 0; + } + + if (bh) + fotg210_work(fotg210); + spin_unlock(&fotg210->lock); + if (pcd_status) + usb_hcd_poll_rh_status(hcd); + return IRQ_HANDLED; +} + +/*-------------------------------------------------------------------------*/ + +/* + * non-error returns are a promise to giveback() the urb later + * we drop ownership so next owner (or urb unlink) can get it + * + * urb + dev is in hcd.self.controller.urb_list + * we're queueing TDs onto software and hardware lists + * + * hcd-specific init for hcpriv hasn't been done yet + * + * NOTE: control, bulk, and interrupt share the same code to append TDs + * to a (possibly active) QH, and the same QH scanning code. + */ +static int fotg210_urb_enqueue( + struct usb_hcd *hcd, + struct urb *urb, + gfp_t mem_flags +) { + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + struct list_head qtd_list; + + INIT_LIST_HEAD(&qtd_list); + + switch (usb_pipetype(urb->pipe)) { + case PIPE_CONTROL: + /* qh_completions() code doesn't handle all the fault cases + * in multi-TD control transfers. Even 1KB is rare anyway. + */ + if (urb->transfer_buffer_length > (16 * 1024)) + return -EMSGSIZE; + /* FALLTHROUGH */ + /* case PIPE_BULK: */ + default: + if (!qh_urb_transaction(fotg210, urb, &qtd_list, mem_flags)) + return -ENOMEM; + return submit_async(fotg210, urb, &qtd_list, mem_flags); + + case PIPE_INTERRUPT: + if (!qh_urb_transaction(fotg210, urb, &qtd_list, mem_flags)) + return -ENOMEM; + return intr_submit(fotg210, urb, &qtd_list, mem_flags); + + case PIPE_ISOCHRONOUS: + return itd_submit(fotg210, urb, mem_flags); + } +} + +/* remove from hardware lists + * completions normally happen asynchronously + */ + +static int fotg210_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + struct fotg210_qh *qh; + unsigned long flags; + int rc; + + spin_lock_irqsave(&fotg210->lock, flags); + rc = usb_hcd_check_unlink_urb(hcd, urb, status); + if (rc) + goto done; + + switch (usb_pipetype(urb->pipe)) { + /* case PIPE_CONTROL: */ + /* case PIPE_BULK:*/ + default: + qh = (struct fotg210_qh *) urb->hcpriv; + if (!qh) + break; + switch (qh->qh_state) { + case QH_STATE_LINKED: + case QH_STATE_COMPLETING: + start_unlink_async(fotg210, qh); + break; + case QH_STATE_UNLINK: + case QH_STATE_UNLINK_WAIT: + /* already started */ + break; + case QH_STATE_IDLE: + /* QH might be waiting for a Clear-TT-Buffer */ + qh_completions(fotg210, qh); + break; + } + break; + + case PIPE_INTERRUPT: + qh = (struct fotg210_qh *) urb->hcpriv; + if (!qh) + break; + switch (qh->qh_state) { + case QH_STATE_LINKED: + case QH_STATE_COMPLETING: + start_unlink_intr(fotg210, qh); + break; + case QH_STATE_IDLE: + qh_completions(fotg210, qh); + break; + default: + fotg210_dbg(fotg210, "bogus qh %p state %d\n", + qh, qh->qh_state); + goto done; + } + break; + + case PIPE_ISOCHRONOUS: + /* itd... */ + + /* wait till next completion, do it then. */ + /* completion irqs can wait up to 1024 msec, */ + break; + } +done: + spin_unlock_irqrestore(&fotg210->lock, flags); + return rc; +} + +/*-------------------------------------------------------------------------*/ + +/* bulk qh holds the data toggle */ + +static void +fotg210_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + unsigned long flags; + struct fotg210_qh *qh, *tmp; + + /* ASSERT: any requests/urbs are being unlinked */ + /* ASSERT: nobody can be submitting urbs for this any more */ + +rescan: + spin_lock_irqsave(&fotg210->lock, flags); + qh = ep->hcpriv; + if (!qh) + goto done; + + /* endpoints can be iso streams. for now, we don't + * accelerate iso completions ... so spin a while. + */ + if (qh->hw == NULL) { + struct fotg210_iso_stream *stream = ep->hcpriv; + + if (!list_empty(&stream->td_list)) + goto idle_timeout; + + /* BUG_ON(!list_empty(&stream->free_list)); */ + kfree(stream); + goto done; + } + + if (fotg210->rh_state < FOTG210_RH_RUNNING) + qh->qh_state = QH_STATE_IDLE; + switch (qh->qh_state) { + case QH_STATE_LINKED: + case QH_STATE_COMPLETING: + for (tmp = fotg210->async->qh_next.qh; + tmp && tmp != qh; + tmp = tmp->qh_next.qh) + continue; + /* periodic qh self-unlinks on empty, and a COMPLETING qh + * may already be unlinked. + */ + if (tmp) + start_unlink_async(fotg210, qh); + /* FALL THROUGH */ + case QH_STATE_UNLINK: /* wait for hw to finish? */ + case QH_STATE_UNLINK_WAIT: +idle_timeout: + spin_unlock_irqrestore(&fotg210->lock, flags); + schedule_timeout_uninterruptible(1); + goto rescan; + case QH_STATE_IDLE: /* fully unlinked */ + if (qh->clearing_tt) + goto idle_timeout; + if (list_empty(&qh->qtd_list)) { + qh_destroy(fotg210, qh); + break; + } + /* else FALL THROUGH */ + default: + /* caller was supposed to have unlinked any requests; + * that's not our job. just leak this memory. + */ + fotg210_err(fotg210, "qh %p (#%02x) state %d%s\n", + qh, ep->desc.bEndpointAddress, qh->qh_state, + list_empty(&qh->qtd_list) ? "" : "(has tds)"); + break; + } + done: + ep->hcpriv = NULL; + spin_unlock_irqrestore(&fotg210->lock, flags); +} + +static void +fotg210_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + struct fotg210_qh *qh; + int eptype = usb_endpoint_type(&ep->desc); + int epnum = usb_endpoint_num(&ep->desc); + int is_out = usb_endpoint_dir_out(&ep->desc); + unsigned long flags; + + if (eptype != USB_ENDPOINT_XFER_BULK && eptype != USB_ENDPOINT_XFER_INT) + return; + + spin_lock_irqsave(&fotg210->lock, flags); + qh = ep->hcpriv; + + /* For Bulk and Interrupt endpoints we maintain the toggle state + * in the hardware; the toggle bits in udev aren't used at all. + * When an endpoint is reset by usb_clear_halt() we must reset + * the toggle bit in the QH. + */ + if (qh) { + usb_settoggle(qh->dev, epnum, is_out, 0); + if (!list_empty(&qh->qtd_list)) { + WARN_ONCE(1, "clear_halt for a busy endpoint\n"); + } else if (qh->qh_state == QH_STATE_LINKED || + qh->qh_state == QH_STATE_COMPLETING) { + + /* The toggle value in the QH can't be updated + * while the QH is active. Unlink it now; + * re-linking will call qh_refresh(). + */ + if (eptype == USB_ENDPOINT_XFER_BULK) + start_unlink_async(fotg210, qh); + else + start_unlink_intr(fotg210, qh); + } + } + spin_unlock_irqrestore(&fotg210->lock, flags); +} + +static int fotg210_get_frame(struct usb_hcd *hcd) +{ + struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); + return (fotg210_read_frame_index(fotg210) >> 3) % + fotg210->periodic_size; +} + +/*-------------------------------------------------------------------------*/ + +/* + * The EHCI in ChipIdea HDRC cannot be a separate module or device, + * because its registers (and irq) are shared between host/gadget/otg + * functions and in order to facilitate role switching we cannot + * give the fotg210 driver exclusive access to those. + */ +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_LICENSE("GPL"); + +static const struct hc_driver fotg210_fotg210_hc_driver = { + .description = hcd_name, + .product_desc = "Faraday USB2.0 Host Controller", + .hcd_priv_size = sizeof(struct fotg210_hcd), + + /* + * generic hardware linkage + */ + .irq = fotg210_irq, + .flags = HCD_MEMORY | HCD_USB2, + + /* + * basic lifecycle operations + */ + .reset = hcd_fotg210_init, + .start = fotg210_run, + .stop = fotg210_stop, + .shutdown = fotg210_shutdown, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = fotg210_urb_enqueue, + .urb_dequeue = fotg210_urb_dequeue, + .endpoint_disable = fotg210_endpoint_disable, + .endpoint_reset = fotg210_endpoint_reset, + + /* + * scheduling support + */ + .get_frame_number = fotg210_get_frame, + + /* + * root hub support + */ + .hub_status_data = fotg210_hub_status_data, + .hub_control = fotg210_hub_control, + .bus_suspend = fotg210_bus_suspend, + .bus_resume = fotg210_bus_resume, + + .relinquish_port = fotg210_relinquish_port, + .port_handed_over = fotg210_port_handed_over, + + .clear_tt_buffer_complete = fotg210_clear_tt_buffer_complete, +}; + +static void fotg210_init(struct fotg210_hcd *fotg210) +{ + u32 value; + + iowrite32(GMIR_MDEV_INT | GMIR_MOTG_INT | GMIR_INT_POLARITY, + &fotg210->regs->gmir); + + value = ioread32(&fotg210->regs->otgcsr); + value &= ~OTGCSR_A_BUS_DROP; + value |= OTGCSR_A_BUS_REQ; + iowrite32(value, &fotg210->regs->otgcsr); +} + +/** + * fotg210_hcd_probe - initialize faraday FOTG210 HCDs + * + * Allocates basic resources for this USB host controller, and + * then invokes the start() method for the HCD associated with it + * through the hotplug entry's driver_data. + */ +static int fotg210_hcd_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct usb_hcd *hcd; + struct resource *res; + int irq; + int retval = -ENODEV; + struct fotg210_hcd *fotg210; + + if (usb_disabled()) + return -ENODEV; + + pdev->dev.power.power_state = PMSG_ON; + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!res) { + dev_err(dev, + "Found HC with no IRQ. Check %s setup!\n", + dev_name(dev)); + return -ENODEV; + } + + irq = res->start; + + hcd = usb_create_hcd(&fotg210_fotg210_hc_driver, dev, + dev_name(dev)); + if (!hcd) { + dev_err(dev, "failed to create hcd with err %d\n", retval); + retval = -ENOMEM; + goto fail_create_hcd; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, + "Found HC with no register addr. Check %s setup!\n", + dev_name(dev)); + retval = -ENODEV; + goto fail_request_resource; + } + + hcd->rsrc_start = res->start; + hcd->rsrc_len = resource_size(res); + hcd->has_tt = 1; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, + fotg210_fotg210_hc_driver.description)) { + dev_dbg(dev, "controller already in use\n"); + retval = -EBUSY; + goto fail_request_resource; + } + + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!res) { + dev_err(dev, + "Found HC with no register addr. Check %s setup!\n", + dev_name(dev)); + retval = -ENODEV; + goto fail_request_resource; + } + + hcd->regs = ioremap_nocache(res->start, resource_size(res)); + if (hcd->regs == NULL) { + dev_dbg(dev, "error mapping memory\n"); + retval = -EFAULT; + goto fail_ioremap; + } + + fotg210 = hcd_to_fotg210(hcd); + + fotg210->caps = hcd->regs; + + retval = fotg210_setup(hcd); + if (retval) + goto fail_add_hcd; + + fotg210_init(fotg210); + + retval = usb_add_hcd(hcd, irq, IRQF_SHARED); + if (retval) { + dev_err(dev, "failed to add hcd with err %d\n", retval); + goto fail_add_hcd; + } + + return retval; + +fail_add_hcd: + iounmap(hcd->regs); +fail_ioremap: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +fail_request_resource: + usb_put_hcd(hcd); +fail_create_hcd: + dev_err(dev, "init %s fail, %d\n", dev_name(dev), retval); + return retval; +} + +/** + * fotg210_hcd_remove - shutdown processing for EHCI HCDs + * @dev: USB Host Controller being removed + * + */ +static int fotg210_hcd_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct usb_hcd *hcd = dev_get_drvdata(dev); + + if (!hcd) + return 0; + + usb_remove_hcd(hcd); + iounmap(hcd->regs); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); + + return 0; +} + +static struct platform_driver fotg210_hcd_driver = { + .driver = { + .name = "fotg210-hcd", + }, + .probe = fotg210_hcd_probe, + .remove = fotg210_hcd_remove, +}; + +static int __init fotg210_hcd_init(void) +{ + int retval = 0; + + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + set_bit(USB_EHCI_LOADED, &usb_hcds_loaded); + if (test_bit(USB_UHCI_LOADED, &usb_hcds_loaded) || + test_bit(USB_OHCI_LOADED, &usb_hcds_loaded)) + pr_warn(KERN_WARNING "Warning! fotg210_hcd should always be loaded before uhci_hcd and ohci_hcd, not after\n"); + + pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd\n", + hcd_name, + sizeof(struct fotg210_qh), sizeof(struct fotg210_qtd), + sizeof(struct fotg210_itd)); + +#ifdef DEBUG + fotg210_debug_root = debugfs_create_dir("fotg210", usb_debug_root); + if (!fotg210_debug_root) { + retval = -ENOENT; + goto err_debug; + } +#endif + + retval = platform_driver_register(&fotg210_hcd_driver); + if (retval < 0) + goto clean; + return retval; + + platform_driver_unregister(&fotg210_hcd_driver); +clean: +#ifdef DEBUG + debugfs_remove(fotg210_debug_root); + fotg210_debug_root = NULL; +err_debug: +#endif + clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); + return retval; +} +module_init(fotg210_hcd_init); + +static void __exit fotg210_hcd_cleanup(void) +{ + platform_driver_unregister(&fotg210_hcd_driver); +#ifdef DEBUG + debugfs_remove(fotg210_debug_root); +#endif + clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); +} +module_exit(fotg210_hcd_cleanup); diff --git a/drivers/usb/host/fotg210.h b/drivers/usb/host/fotg210.h new file mode 100644 index 000000000000..8920f9d32564 --- /dev/null +++ b/drivers/usb/host/fotg210.h @@ -0,0 +1,750 @@ +#ifndef __LINUX_FOTG210_H +#define __LINUX_FOTG210_H + +/* definitions used for the EHCI driver */ + +/* + * __hc32 and __hc16 are "Host Controller" types, they may be equivalent to + * __leXX (normally) or __beXX (given FOTG210_BIG_ENDIAN_DESC), depending on + * the host controller implementation. + * + * To facilitate the strongest possible byte-order checking from "sparse" + * and so on, we use __leXX unless that's not practical. + */ +#define __hc32 __le32 +#define __hc16 __le16 + +/* statistics can be kept for tuning/monitoring */ +struct fotg210_stats { + /* irq usage */ + unsigned long normal; + unsigned long error; + unsigned long iaa; + unsigned long lost_iaa; + + /* termination of urbs from core */ + unsigned long complete; + unsigned long unlink; +}; + +/* fotg210_hcd->lock guards shared data against other CPUs: + * fotg210_hcd: async, unlink, periodic (and shadow), ... + * usb_host_endpoint: hcpriv + * fotg210_qh: qh_next, qtd_list + * fotg210_qtd: qtd_list + * + * Also, hold this lock when talking to HC registers or + * when updating hw_* fields in shared qh/qtd/... structures. + */ + +#define FOTG210_MAX_ROOT_PORTS 1 /* see HCS_N_PORTS */ + +/* + * fotg210_rh_state values of FOTG210_RH_RUNNING or above mean that the + * controller may be doing DMA. Lower values mean there's no DMA. + */ +enum fotg210_rh_state { + FOTG210_RH_HALTED, + FOTG210_RH_SUSPENDED, + FOTG210_RH_RUNNING, + FOTG210_RH_STOPPING +}; + +/* + * Timer events, ordered by increasing delay length. + * Always update event_delays_ns[] and event_handlers[] (defined in + * ehci-timer.c) in parallel with this list. + */ +enum fotg210_hrtimer_event { + FOTG210_HRTIMER_POLL_ASS, /* Poll for async schedule off */ + FOTG210_HRTIMER_POLL_PSS, /* Poll for periodic schedule off */ + FOTG210_HRTIMER_POLL_DEAD, /* Wait for dead controller to stop */ + FOTG210_HRTIMER_UNLINK_INTR, /* Wait for interrupt QH unlink */ + FOTG210_HRTIMER_FREE_ITDS, /* Wait for unused iTDs and siTDs */ + FOTG210_HRTIMER_ASYNC_UNLINKS, /* Unlink empty async QHs */ + FOTG210_HRTIMER_IAA_WATCHDOG, /* Handle lost IAA interrupts */ + FOTG210_HRTIMER_DISABLE_PERIODIC, /* Wait to disable periodic sched */ + FOTG210_HRTIMER_DISABLE_ASYNC, /* Wait to disable async sched */ + FOTG210_HRTIMER_IO_WATCHDOG, /* Check for missing IRQs */ + FOTG210_HRTIMER_NUM_EVENTS /* Must come last */ +}; +#define FOTG210_HRTIMER_NO_EVENT 99 + +struct fotg210_hcd { /* one per controller */ + /* timing support */ + enum fotg210_hrtimer_event next_hrtimer_event; + unsigned enabled_hrtimer_events; + ktime_t hr_timeouts[FOTG210_HRTIMER_NUM_EVENTS]; + struct hrtimer hrtimer; + + int PSS_poll_count; + int ASS_poll_count; + int died_poll_count; + + /* glue to PCI and HCD framework */ + struct fotg210_caps __iomem *caps; + struct fotg210_regs __iomem *regs; + struct fotg210_dbg_port __iomem *debug; + + __u32 hcs_params; /* cached register copy */ + spinlock_t lock; + enum fotg210_rh_state rh_state; + + /* general schedule support */ + bool scanning:1; + bool need_rescan:1; + bool intr_unlinking:1; + bool async_unlinking:1; + bool shutdown:1; + struct fotg210_qh *qh_scan_next; + + /* async schedule support */ + struct fotg210_qh *async; + struct fotg210_qh *dummy; /* For AMD quirk use */ + struct fotg210_qh *async_unlink; + struct fotg210_qh *async_unlink_last; + struct fotg210_qh *async_iaa; + unsigned async_unlink_cycle; + unsigned async_count; /* async activity count */ + + /* periodic schedule support */ +#define DEFAULT_I_TDPS 1024 /* some HCs can do less */ + unsigned periodic_size; + __hc32 *periodic; /* hw periodic table */ + dma_addr_t periodic_dma; + struct list_head intr_qh_list; + unsigned i_thresh; /* uframes HC might cache */ + + union fotg210_shadow *pshadow; /* mirror hw periodic table */ + struct fotg210_qh *intr_unlink; + struct fotg210_qh *intr_unlink_last; + unsigned intr_unlink_cycle; + unsigned now_frame; /* frame from HC hardware */ + unsigned next_frame; /* scan periodic, start here */ + unsigned intr_count; /* intr activity count */ + unsigned isoc_count; /* isoc activity count */ + unsigned periodic_count; /* periodic activity count */ + /* max periodic time per uframe */ + unsigned uframe_periodic_max; + + + /* list of itds completed while now_frame was still active */ + struct list_head cached_itd_list; + struct fotg210_itd *last_itd_to_free; + + /* per root hub port */ + unsigned long reset_done[FOTG210_MAX_ROOT_PORTS]; + + /* bit vectors (one bit per port) */ + unsigned long bus_suspended; /* which ports were + already suspended at the start of a bus suspend */ + unsigned long companion_ports; /* which ports are + dedicated to the companion controller */ + unsigned long owned_ports; /* which ports are + owned by the companion during a bus suspend */ + unsigned long port_c_suspend; /* which ports have + the change-suspend feature turned on */ + unsigned long suspended_ports; /* which ports are + suspended */ + unsigned long resuming_ports; /* which ports have + started to resume */ + + /* per-HC memory pools (could be per-bus, but ...) */ + struct dma_pool *qh_pool; /* qh per active urb */ + struct dma_pool *qtd_pool; /* one or more per qh */ + struct dma_pool *itd_pool; /* itd per iso urb */ + + unsigned random_frame; + unsigned long next_statechange; + ktime_t last_periodic_enable; + u32 command; + + /* SILICON QUIRKS */ + unsigned need_io_watchdog:1; + unsigned fs_i_thresh:1; /* Intel iso scheduling */ + + u8 sbrn; /* packed release number */ + + /* irq statistics */ +#ifdef FOTG210_STATS + struct fotg210_stats stats; +# define COUNT(x) ((x)++) +#else +# define COUNT(x) +#endif + + /* debug files */ +#ifdef DEBUG + struct dentry *debug_dir; +#endif +}; + +/* convert between an HCD pointer and the corresponding FOTG210_HCD */ +static inline struct fotg210_hcd *hcd_to_fotg210(struct usb_hcd *hcd) +{ + return (struct fotg210_hcd *)(hcd->hcd_priv); +} +static inline struct usb_hcd *fotg210_to_hcd(struct fotg210_hcd *fotg210) +{ + return container_of((void *) fotg210, struct usb_hcd, hcd_priv); +} + +/*-------------------------------------------------------------------------*/ + +/* EHCI register interface, corresponds to EHCI Revision 0.95 specification */ + +/* Section 2.2 Host Controller Capability Registers */ +struct fotg210_caps { + /* these fields are specified as 8 and 16 bit registers, + * but some hosts can't perform 8 or 16 bit PCI accesses. + * some hosts treat caplength and hciversion as parts of a 32-bit + * register, others treat them as two separate registers, this + * affects the memory map for big endian controllers. + */ + u32 hc_capbase; +#define HC_LENGTH(fotg210, p) (0x00ff&((p) >> /* bits 7:0 / offset 00h */ \ + (fotg210_big_endian_capbase(fotg210) ? 24 : 0))) +#define HC_VERSION(fotg210, p) (0xffff&((p) >> /* bits 31:16 / offset 02h */ \ + (fotg210_big_endian_capbase(fotg210) ? 0 : 16))) + u32 hcs_params; /* HCSPARAMS - offset 0x4 */ +#define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */ + + u32 hcc_params; /* HCCPARAMS - offset 0x8 */ +#define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */ +#define HCC_PGM_FRAMELISTLEN(p) ((p)&(1 << 1)) /* true: periodic_size changes*/ + u8 portroute[8]; /* nibbles for routing - offset 0xC */ +}; + + +/* Section 2.3 Host Controller Operational Registers */ +struct fotg210_regs { + + /* USBCMD: offset 0x00 */ + u32 command; + +/* EHCI 1.1 addendum */ +/* 23:16 is r/w intr rate, in microframes; default "8" == 1/msec */ +#define CMD_PARK (1<<11) /* enable "park" on async qh */ +#define CMD_PARK_CNT(c) (((c)>>8)&3) /* how many transfers to park for */ +#define CMD_IAAD (1<<6) /* "doorbell" interrupt async advance */ +#define CMD_ASE (1<<5) /* async schedule enable */ +#define CMD_PSE (1<<4) /* periodic schedule enable */ +/* 3:2 is periodic frame list size */ +#define CMD_RESET (1<<1) /* reset HC not bus */ +#define CMD_RUN (1<<0) /* start/stop HC */ + + /* USBSTS: offset 0x04 */ + u32 status; +#define STS_ASS (1<<15) /* Async Schedule Status */ +#define STS_PSS (1<<14) /* Periodic Schedule Status */ +#define STS_RECL (1<<13) /* Reclamation */ +#define STS_HALT (1<<12) /* Not running (any reason) */ +/* some bits reserved */ + /* these STS_* flags are also intr_enable bits (USBINTR) */ +#define STS_IAA (1<<5) /* Interrupted on async advance */ +#define STS_FATAL (1<<4) /* such as some PCI access errors */ +#define STS_FLR (1<<3) /* frame list rolled over */ +#define STS_PCD (1<<2) /* port change detect */ +#define STS_ERR (1<<1) /* "error" completion (overflow, ...) */ +#define STS_INT (1<<0) /* "normal" completion (short, ...) */ + + /* USBINTR: offset 0x08 */ + u32 intr_enable; + + /* FRINDEX: offset 0x0C */ + u32 frame_index; /* current microframe number */ + /* CTRLDSSEGMENT: offset 0x10 */ + u32 segment; /* address bits 63:32 if needed */ + /* PERIODICLISTBASE: offset 0x14 */ + u32 frame_list; /* points to periodic list */ + /* ASYNCLISTADDR: offset 0x18 */ + u32 async_next; /* address of next async queue head */ + + u32 reserved1; + /* PORTSC: offset 0x20 */ + u32 port_status; +/* 31:23 reserved */ +#define PORT_USB11(x) (((x)&(3<<10)) == (1<<10)) /* USB 1.1 device */ +#define PORT_RESET (1<<8) /* reset port */ +#define PORT_SUSPEND (1<<7) /* suspend port */ +#define PORT_RESUME (1<<6) /* resume it */ +#define PORT_PEC (1<<3) /* port enable change */ +#define PORT_PE (1<<2) /* port enable */ +#define PORT_CSC (1<<1) /* connect status change */ +#define PORT_CONNECT (1<<0) /* device connected */ +#define PORT_RWC_BITS (PORT_CSC | PORT_PEC) + u32 reserved2[19]; + + /* OTGCSR: offet 0x70 */ + u32 otgcsr; +#define OTGCSR_HOST_SPD_TYP (3 << 22) +#define OTGCSR_A_BUS_DROP (1 << 5) +#define OTGCSR_A_BUS_REQ (1 << 4) + + /* OTGISR: offset 0x74 */ + u32 otgisr; +#define OTGISR_OVC (1 << 10) + + u32 reserved3[15]; + + /* GMIR: offset 0xB4 */ + u32 gmir; +#define GMIR_INT_POLARITY (1 << 3) /*Active High*/ +#define GMIR_MHC_INT (1 << 2) +#define GMIR_MOTG_INT (1 << 1) +#define GMIR_MDEV_INT (1 << 0) +}; + +/* Appendix C, Debug port ... intended for use with special "debug devices" + * that can help if there's no serial console. (nonstandard enumeration.) + */ +struct fotg210_dbg_port { + u32 control; +#define DBGP_OWNER (1<<30) +#define DBGP_ENABLED (1<<28) +#define DBGP_DONE (1<<16) +#define DBGP_INUSE (1<<10) +#define DBGP_ERRCODE(x) (((x)>>7)&0x07) +# define DBGP_ERR_BAD 1 +# define DBGP_ERR_SIGNAL 2 +#define DBGP_ERROR (1<<6) +#define DBGP_GO (1<<5) +#define DBGP_OUT (1<<4) +#define DBGP_LEN(x) (((x)>>0)&0x0f) + u32 pids; +#define DBGP_PID_GET(x) (((x)>>16)&0xff) +#define DBGP_PID_SET(data, tok) (((data)<<8)|(tok)) + u32 data03; + u32 data47; + u32 address; +#define DBGP_EPADDR(dev, ep) (((dev)<<8)|(ep)) +}; + +#ifdef CONFIG_EARLY_PRINTK_DBGP +#include <linux/init.h> +extern int __init early_dbgp_init(char *s); +extern struct console early_dbgp_console; +#endif /* CONFIG_EARLY_PRINTK_DBGP */ + +struct usb_hcd; + +static inline int xen_dbgp_reset_prep(struct usb_hcd *hcd) +{ + return 1; /* Shouldn't this be 0? */ +} + +static inline int xen_dbgp_external_startup(struct usb_hcd *hcd) +{ + return -1; +} + +#ifdef CONFIG_EARLY_PRINTK_DBGP +/* Call backs from fotg210 host driver to fotg210 debug driver */ +extern int dbgp_external_startup(struct usb_hcd *); +extern int dbgp_reset_prep(struct usb_hcd *hcd); +#else +static inline int dbgp_reset_prep(struct usb_hcd *hcd) +{ + return xen_dbgp_reset_prep(hcd); +} +static inline int dbgp_external_startup(struct usb_hcd *hcd) +{ + return xen_dbgp_external_startup(hcd); +} +#endif + +/*-------------------------------------------------------------------------*/ + +#define QTD_NEXT(fotg210, dma) cpu_to_hc32(fotg210, (u32)dma) + +/* + * EHCI Specification 0.95 Section 3.5 + * QTD: describe data transfer components (buffer, direction, ...) + * See Fig 3-6 "Queue Element Transfer Descriptor Block Diagram". + * + * These are associated only with "QH" (Queue Head) structures, + * used with control, bulk, and interrupt transfers. + */ +struct fotg210_qtd { + /* first part defined by EHCI spec */ + __hc32 hw_next; /* see EHCI 3.5.1 */ + __hc32 hw_alt_next; /* see EHCI 3.5.2 */ + __hc32 hw_token; /* see EHCI 3.5.3 */ +#define QTD_TOGGLE (1 << 31) /* data toggle */ +#define QTD_LENGTH(tok) (((tok)>>16) & 0x7fff) +#define QTD_IOC (1 << 15) /* interrupt on complete */ +#define QTD_CERR(tok) (((tok)>>10) & 0x3) +#define QTD_PID(tok) (((tok)>>8) & 0x3) +#define QTD_STS_ACTIVE (1 << 7) /* HC may execute this */ +#define QTD_STS_HALT (1 << 6) /* halted on error */ +#define QTD_STS_DBE (1 << 5) /* data buffer error (in HC) */ +#define QTD_STS_BABBLE (1 << 4) /* device was babbling (qtd halted) */ +#define QTD_STS_XACT (1 << 3) /* device gave illegal response */ +#define QTD_STS_MMF (1 << 2) /* incomplete split transaction */ +#define QTD_STS_STS (1 << 1) /* split transaction state */ +#define QTD_STS_PING (1 << 0) /* issue PING? */ + +#define ACTIVE_BIT(fotg210) cpu_to_hc32(fotg210, QTD_STS_ACTIVE) +#define HALT_BIT(fotg210) cpu_to_hc32(fotg210, QTD_STS_HALT) +#define STATUS_BIT(fotg210) cpu_to_hc32(fotg210, QTD_STS_STS) + + __hc32 hw_buf[5]; /* see EHCI 3.5.4 */ + __hc32 hw_buf_hi[5]; /* Appendix B */ + + /* the rest is HCD-private */ + dma_addr_t qtd_dma; /* qtd address */ + struct list_head qtd_list; /* sw qtd list */ + struct urb *urb; /* qtd's urb */ + size_t length; /* length of buffer */ +} __aligned(32); + +/* mask NakCnt+T in qh->hw_alt_next */ +#define QTD_MASK(fotg210) cpu_to_hc32(fotg210, ~0x1f) + +#define IS_SHORT_READ(token) (QTD_LENGTH(token) != 0 && QTD_PID(token) == 1) + +/*-------------------------------------------------------------------------*/ + +/* type tag from {qh,itd,fstn}->hw_next */ +#define Q_NEXT_TYPE(fotg210, dma) ((dma) & cpu_to_hc32(fotg210, 3 << 1)) + +/* + * Now the following defines are not converted using the + * cpu_to_le32() macro anymore, since we have to support + * "dynamic" switching between be and le support, so that the driver + * can be used on one system with SoC EHCI controller using big-endian + * descriptors as well as a normal little-endian PCI EHCI controller. + */ +/* values for that type tag */ +#define Q_TYPE_ITD (0 << 1) +#define Q_TYPE_QH (1 << 1) +#define Q_TYPE_SITD (2 << 1) +#define Q_TYPE_FSTN (3 << 1) + +/* next async queue entry, or pointer to interrupt/periodic QH */ +#define QH_NEXT(fotg210, dma) \ + (cpu_to_hc32(fotg210, (((u32)dma)&~0x01f)|Q_TYPE_QH)) + +/* for periodic/async schedules and qtd lists, mark end of list */ +#define FOTG210_LIST_END(fotg210) \ + cpu_to_hc32(fotg210, 1) /* "null pointer" to hw */ + +/* + * Entries in periodic shadow table are pointers to one of four kinds + * of data structure. That's dictated by the hardware; a type tag is + * encoded in the low bits of the hardware's periodic schedule. Use + * Q_NEXT_TYPE to get the tag. + * + * For entries in the async schedule, the type tag always says "qh". + */ +union fotg210_shadow { + struct fotg210_qh *qh; /* Q_TYPE_QH */ + struct fotg210_itd *itd; /* Q_TYPE_ITD */ + struct fotg210_fstn *fstn; /* Q_TYPE_FSTN */ + __hc32 *hw_next; /* (all types) */ + void *ptr; +}; + +/*-------------------------------------------------------------------------*/ + +/* + * EHCI Specification 0.95 Section 3.6 + * QH: describes control/bulk/interrupt endpoints + * See Fig 3-7 "Queue Head Structure Layout". + * + * These appear in both the async and (for interrupt) periodic schedules. + */ + +/* first part defined by EHCI spec */ +struct fotg210_qh_hw { + __hc32 hw_next; /* see EHCI 3.6.1 */ + __hc32 hw_info1; /* see EHCI 3.6.2 */ +#define QH_CONTROL_EP (1 << 27) /* FS/LS control endpoint */ +#define QH_HEAD (1 << 15) /* Head of async reclamation list */ +#define QH_TOGGLE_CTL (1 << 14) /* Data toggle control */ +#define QH_HIGH_SPEED (2 << 12) /* Endpoint speed */ +#define QH_LOW_SPEED (1 << 12) +#define QH_FULL_SPEED (0 << 12) +#define QH_INACTIVATE (1 << 7) /* Inactivate on next transaction */ + __hc32 hw_info2; /* see EHCI 3.6.2 */ +#define QH_SMASK 0x000000ff +#define QH_CMASK 0x0000ff00 +#define QH_HUBADDR 0x007f0000 +#define QH_HUBPORT 0x3f800000 +#define QH_MULT 0xc0000000 + __hc32 hw_current; /* qtd list - see EHCI 3.6.4 */ + + /* qtd overlay (hardware parts of a struct fotg210_qtd) */ + __hc32 hw_qtd_next; + __hc32 hw_alt_next; + __hc32 hw_token; + __hc32 hw_buf[5]; + __hc32 hw_buf_hi[5]; +} __aligned(32); + +struct fotg210_qh { + struct fotg210_qh_hw *hw; /* Must come first */ + /* the rest is HCD-private */ + dma_addr_t qh_dma; /* address of qh */ + union fotg210_shadow qh_next; /* ptr to qh; or periodic */ + struct list_head qtd_list; /* sw qtd list */ + struct list_head intr_node; /* list of intr QHs */ + struct fotg210_qtd *dummy; + struct fotg210_qh *unlink_next; /* next on unlink list */ + + unsigned unlink_cycle; + + u8 needs_rescan; /* Dequeue during giveback */ + u8 qh_state; +#define QH_STATE_LINKED 1 /* HC sees this */ +#define QH_STATE_UNLINK 2 /* HC may still see this */ +#define QH_STATE_IDLE 3 /* HC doesn't see this */ +#define QH_STATE_UNLINK_WAIT 4 /* LINKED and on unlink q */ +#define QH_STATE_COMPLETING 5 /* don't touch token.HALT */ + + u8 xacterrs; /* XactErr retry counter */ +#define QH_XACTERR_MAX 32 /* XactErr retry limit */ + + /* periodic schedule info */ + u8 usecs; /* intr bandwidth */ + u8 gap_uf; /* uframes split/csplit gap */ + u8 c_usecs; /* ... split completion bw */ + u16 tt_usecs; /* tt downstream bandwidth */ + unsigned short period; /* polling interval */ + unsigned short start; /* where polling starts */ +#define NO_FRAME ((unsigned short)~0) /* pick new start */ + + struct usb_device *dev; /* access to TT */ + unsigned is_out:1; /* bulk or intr OUT */ + unsigned clearing_tt:1; /* Clear-TT-Buf in progress */ +}; + +/*-------------------------------------------------------------------------*/ + +/* description of one iso transaction (up to 3 KB data if highspeed) */ +struct fotg210_iso_packet { + /* These will be copied to iTD when scheduling */ + u64 bufp; /* itd->hw_bufp{,_hi}[pg] |= */ + __hc32 transaction; /* itd->hw_transaction[i] |= */ + u8 cross; /* buf crosses pages */ + /* for full speed OUT splits */ + u32 buf1; +}; + +/* temporary schedule data for packets from iso urbs (both speeds) + * each packet is one logical usb transaction to the device (not TT), + * beginning at stream->next_uframe + */ +struct fotg210_iso_sched { + struct list_head td_list; + unsigned span; + struct fotg210_iso_packet packet[0]; +}; + +/* + * fotg210_iso_stream - groups all (s)itds for this endpoint. + * acts like a qh would, if EHCI had them for ISO. + */ +struct fotg210_iso_stream { + /* first field matches fotg210_hq, but is NULL */ + struct fotg210_qh_hw *hw; + + u8 bEndpointAddress; + u8 highspeed; + struct list_head td_list; /* queued itds */ + struct list_head free_list; /* list of unused itds */ + struct usb_device *udev; + struct usb_host_endpoint *ep; + + /* output of (re)scheduling */ + int next_uframe; + __hc32 splits; + + /* the rest is derived from the endpoint descriptor, + * trusting urb->interval == f(epdesc->bInterval) and + * including the extra info for hw_bufp[0..2] + */ + u8 usecs, c_usecs; + u16 interval; + u16 tt_usecs; + u16 maxp; + u16 raw_mask; + unsigned bandwidth; + + /* This is used to initialize iTD's hw_bufp fields */ + __hc32 buf0; + __hc32 buf1; + __hc32 buf2; + + /* this is used to initialize sITD's tt info */ + __hc32 address; +}; + +/*-------------------------------------------------------------------------*/ + +/* + * EHCI Specification 0.95 Section 3.3 + * Fig 3-4 "Isochronous Transaction Descriptor (iTD)" + * + * Schedule records for high speed iso xfers + */ +struct fotg210_itd { + /* first part defined by EHCI spec */ + __hc32 hw_next; /* see EHCI 3.3.1 */ + __hc32 hw_transaction[8]; /* see EHCI 3.3.2 */ +#define FOTG210_ISOC_ACTIVE (1<<31) /* activate transfer this slot */ +#define FOTG210_ISOC_BUF_ERR (1<<30) /* Data buffer error */ +#define FOTG210_ISOC_BABBLE (1<<29) /* babble detected */ +#define FOTG210_ISOC_XACTERR (1<<28) /* XactErr - transaction error */ +#define FOTG210_ITD_LENGTH(tok) (((tok)>>16) & 0x0fff) +#define FOTG210_ITD_IOC (1 << 15) /* interrupt on complete */ + +#define ITD_ACTIVE(fotg210) cpu_to_hc32(fotg210, FOTG210_ISOC_ACTIVE) + + __hc32 hw_bufp[7]; /* see EHCI 3.3.3 */ + __hc32 hw_bufp_hi[7]; /* Appendix B */ + + /* the rest is HCD-private */ + dma_addr_t itd_dma; /* for this itd */ + union fotg210_shadow itd_next; /* ptr to periodic q entry */ + + struct urb *urb; + struct fotg210_iso_stream *stream; /* endpoint's queue */ + struct list_head itd_list; /* list of stream's itds */ + + /* any/all hw_transactions here may be used by that urb */ + unsigned frame; /* where scheduled */ + unsigned pg; + unsigned index[8]; /* in urb->iso_frame_desc */ +} __aligned(32); + +/*-------------------------------------------------------------------------*/ + +/* + * EHCI Specification 0.96 Section 3.7 + * Periodic Frame Span Traversal Node (FSTN) + * + * Manages split interrupt transactions (using TT) that span frame boundaries + * into uframes 0/1; see 4.12.2.2. In those uframes, a "save place" FSTN + * makes the HC jump (back) to a QH to scan for fs/ls QH completions until + * it hits a "restore" FSTN; then it returns to finish other uframe 0/1 work. + */ +struct fotg210_fstn { + __hc32 hw_next; /* any periodic q entry */ + __hc32 hw_prev; /* qh or FOTG210_LIST_END */ + + /* the rest is HCD-private */ + dma_addr_t fstn_dma; + union fotg210_shadow fstn_next; /* ptr to periodic q entry */ +} __aligned(32); + +/*-------------------------------------------------------------------------*/ + +/* Prepare the PORTSC wakeup flags during controller suspend/resume */ + +#define fotg210_prepare_ports_for_controller_suspend(fotg210, do_wakeup) \ + fotg210_adjust_port_wakeup_flags(fotg210, true, do_wakeup); + +#define fotg210_prepare_ports_for_controller_resume(fotg210) \ + fotg210_adjust_port_wakeup_flags(fotg210, false, false); + +/*-------------------------------------------------------------------------*/ + +/* + * Some EHCI controllers have a Transaction Translator built into the + * root hub. This is a non-standard feature. Each controller will need + * to add code to the following inline functions, and call them as + * needed (mostly in root hub code). + */ + +static inline unsigned int +fotg210_get_speed(struct fotg210_hcd *fotg210, unsigned int portsc) +{ + return (readl(&fotg210->regs->otgcsr) + & OTGCSR_HOST_SPD_TYP) >> 22; +} + +/* Returns the speed of a device attached to a port on the root hub. */ +static inline unsigned int +fotg210_port_speed(struct fotg210_hcd *fotg210, unsigned int portsc) +{ + switch (fotg210_get_speed(fotg210, portsc)) { + case 0: + return 0; + case 1: + return USB_PORT_STAT_LOW_SPEED; + case 2: + default: + return USB_PORT_STAT_HIGH_SPEED; + } +} + +/*-------------------------------------------------------------------------*/ + +#define fotg210_has_fsl_portno_bug(e) (0) + +/* + * While most USB host controllers implement their registers in + * little-endian format, a minority (celleb companion chip) implement + * them in big endian format. + * + * This attempts to support either format at compile time without a + * runtime penalty, or both formats with the additional overhead + * of checking a flag bit. + * + */ + +#define fotg210_big_endian_mmio(e) 0 +#define fotg210_big_endian_capbase(e) 0 + +static inline unsigned int fotg210_readl(const struct fotg210_hcd *fotg210, + __u32 __iomem *regs) +{ + return readl(regs); +} + +static inline void fotg210_writel(const struct fotg210_hcd *fotg210, + const unsigned int val, __u32 __iomem *regs) +{ + writel(val, regs); +} + +/* cpu to fotg210 */ +static inline __hc32 cpu_to_hc32(const struct fotg210_hcd *fotg210, const u32 x) +{ + return cpu_to_le32(x); +} + +/* fotg210 to cpu */ +static inline u32 hc32_to_cpu(const struct fotg210_hcd *fotg210, const __hc32 x) +{ + return le32_to_cpu(x); +} + +static inline u32 hc32_to_cpup(const struct fotg210_hcd *fotg210, + const __hc32 *x) +{ + return le32_to_cpup(x); +} + +/*-------------------------------------------------------------------------*/ + +static inline unsigned fotg210_read_frame_index(struct fotg210_hcd *fotg210) +{ + return fotg210_readl(fotg210, &fotg210->regs->frame_index); +} + +#define fotg210_itdlen(urb, desc, t) ({ \ + usb_pipein((urb)->pipe) ? \ + (desc)->length - FOTG210_ITD_LENGTH(t) : \ + FOTG210_ITD_LENGTH(t); \ +}) +/*-------------------------------------------------------------------------*/ + +#ifndef DEBUG +#define STUB_DEBUG_FILES +#endif /* DEBUG */ + +/*-------------------------------------------------------------------------*/ + +#endif /* __LINUX_FOTG210_H */ diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 11e0b79ff9d5..cfbff7161828 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -258,7 +258,7 @@ static int fsl_usb2_mph_dr_of_remove(struct platform_device *ofdev) int fsl_usb2_mpc5121_init(struct platform_device *pdev) { - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); struct clk *clk; char clk_name[10]; int base, clk_num; @@ -298,7 +298,7 @@ int fsl_usb2_mpc5121_init(struct platform_device *pdev) static void fsl_usb2_mpc5121_exit(struct platform_device *pdev) { - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); pdata->regs = NULL; diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c index 483990c716aa..5b86ffb88f1c 100644 --- a/drivers/usb/host/hwa-hc.c +++ b/drivers/usb/host/hwa-hc.c @@ -161,6 +161,13 @@ static int hwahc_op_start(struct usb_hcd *usb_hcd) usb_hcd->uses_new_polling = 1; set_bit(HCD_FLAG_POLL_RH, &usb_hcd->flags); usb_hcd->state = HC_STATE_RUNNING; + + /* + * prevent USB core from suspending the root hub since + * bus_suspend and bus_resume are not yet supported. + */ + pm_runtime_get_noresume(&usb_hcd->self.root_hub->dev); + result = 0; out: mutex_unlock(&wusbhc->mutex); diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c index 03dc4d9cbeca..60a5de505ca1 100644 --- a/drivers/usb/host/imx21-hcd.c +++ b/drivers/usb/host/imx21-hcd.c @@ -1860,7 +1860,7 @@ static int imx21_probe(struct platform_device *pdev) imx21 = hcd_to_imx21(hcd); imx21->hcd = hcd; imx21->dev = &pdev->dev; - imx21->pdata = pdev->dev.platform_data; + imx21->pdata = dev_get_platdata(&pdev->dev); if (!imx21->pdata) imx21->pdata = &default_pdata; diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index b64e661618bb..c7d0f8f231be 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1626,7 +1626,7 @@ static int isp116x_probe(struct platform_device *pdev) isp116x->addr_reg = addr_reg; spin_lock_init(&isp116x->lock); INIT_LIST_HEAD(&isp116x->async); - isp116x->board = pdev->dev.platform_data; + isp116x->board = dev_get_platdata(&pdev->dev); if (!isp116x->board) { ERR("Platform data structure not initialized\n"); diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h index 9a2c400e6090..dd34b7a33965 100644 --- a/drivers/usb/host/isp116x.h +++ b/drivers/usb/host/isp116x.h @@ -325,11 +325,7 @@ struct isp116x_ep { /*-------------------------------------------------------------------------*/ -#ifdef DEBUG -#define DBG(stuff...) printk(KERN_DEBUG "116x: " stuff) -#else -#define DBG(stuff...) do{}while(0) -#endif +#define DBG(stuff...) pr_debug("116x: " stuff) #ifdef VERBOSE # define VDBG DBG @@ -358,15 +354,8 @@ struct isp116x_ep { #define isp116x_check_platform_delay(h) 0 #endif -#if defined(DEBUG) -#define IRQ_TEST() BUG_ON(!irqs_disabled()) -#else -#define IRQ_TEST() do{}while(0) -#endif - static inline void isp116x_write_addr(struct isp116x *isp116x, unsigned reg) { - IRQ_TEST(); writew(reg & 0xff, isp116x->addr_reg); isp116x_delay(isp116x, 300); } diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index b04e8ece4d35..6f29abad6815 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -37,11 +37,7 @@ * recovery time (MSCx = 0x7f8c) with a memory clock of 99.53 MHz. */ -#ifdef CONFIG_USB_DEBUG -# define ISP1362_DEBUG -#else -# undef ISP1362_DEBUG -#endif +#undef ISP1362_DEBUG /* * The PXA255 UDC apparently doesn't handle GET_STATUS, GET_CONFIG and @@ -82,6 +78,8 @@ #include <linux/io.h> #include <linux/bitmap.h> #include <linux/prefetch.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <asm/irq.h> #include <asm/byteorder.h> @@ -92,7 +90,6 @@ static int dbg_level; module_param(dbg_level, int, 0644); #else module_param(dbg_level, int, 0); -#define STUB_DEBUG_FILE #endif #include "../core/usb.h" @@ -350,8 +347,6 @@ static void isp1362_write_ptd(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep struct ptd *ptd = &ep->ptd; int len = PTD_GET_DIR(ptd) == PTD_DIR_IN ? 0 : ep->length; - _BUG_ON(ep->ptd_offset < 0); - prefetch(ptd); isp1362_write_buffer(isp1362_hcd, ptd, ep->ptd_offset, PTD_HEADER_SIZE); if (len) @@ -1575,12 +1570,12 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, DBG(0, "ClearHubFeature: "); switch (wValue) { case C_HUB_OVER_CURRENT: - _DBG(0, "C_HUB_OVER_CURRENT\n"); + DBG(0, "C_HUB_OVER_CURRENT\n"); spin_lock_irqsave(&isp1362_hcd->lock, flags); isp1362_write_reg32(isp1362_hcd, HCRHSTATUS, RH_HS_OCIC); spin_unlock_irqrestore(&isp1362_hcd->lock, flags); case C_HUB_LOCAL_POWER: - _DBG(0, "C_HUB_LOCAL_POWER\n"); + DBG(0, "C_HUB_LOCAL_POWER\n"); break; default: goto error; @@ -1591,7 +1586,7 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, switch (wValue) { case C_HUB_OVER_CURRENT: case C_HUB_LOCAL_POWER: - _DBG(0, "C_HUB_OVER_CURRENT or C_HUB_LOCAL_POWER\n"); + DBG(0, "C_HUB_OVER_CURRENT or C_HUB_LOCAL_POWER\n"); break; default: goto error; @@ -1622,36 +1617,36 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, switch (wValue) { case USB_PORT_FEAT_ENABLE: - _DBG(0, "USB_PORT_FEAT_ENABLE\n"); + DBG(0, "USB_PORT_FEAT_ENABLE\n"); tmp = RH_PS_CCS; break; case USB_PORT_FEAT_C_ENABLE: - _DBG(0, "USB_PORT_FEAT_C_ENABLE\n"); + DBG(0, "USB_PORT_FEAT_C_ENABLE\n"); tmp = RH_PS_PESC; break; case USB_PORT_FEAT_SUSPEND: - _DBG(0, "USB_PORT_FEAT_SUSPEND\n"); + DBG(0, "USB_PORT_FEAT_SUSPEND\n"); tmp = RH_PS_POCI; break; case USB_PORT_FEAT_C_SUSPEND: - _DBG(0, "USB_PORT_FEAT_C_SUSPEND\n"); + DBG(0, "USB_PORT_FEAT_C_SUSPEND\n"); tmp = RH_PS_PSSC; break; case USB_PORT_FEAT_POWER: - _DBG(0, "USB_PORT_FEAT_POWER\n"); + DBG(0, "USB_PORT_FEAT_POWER\n"); tmp = RH_PS_LSDA; break; case USB_PORT_FEAT_C_CONNECTION: - _DBG(0, "USB_PORT_FEAT_C_CONNECTION\n"); + DBG(0, "USB_PORT_FEAT_C_CONNECTION\n"); tmp = RH_PS_CSC; break; case USB_PORT_FEAT_C_OVER_CURRENT: - _DBG(0, "USB_PORT_FEAT_C_OVER_CURRENT\n"); + DBG(0, "USB_PORT_FEAT_C_OVER_CURRENT\n"); tmp = RH_PS_OCIC; break; case USB_PORT_FEAT_C_RESET: - _DBG(0, "USB_PORT_FEAT_C_RESET\n"); + DBG(0, "USB_PORT_FEAT_C_RESET\n"); tmp = RH_PS_PRSC; break; default: @@ -1671,7 +1666,7 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, wIndex--; switch (wValue) { case USB_PORT_FEAT_SUSPEND: - _DBG(0, "USB_PORT_FEAT_SUSPEND\n"); + DBG(0, "USB_PORT_FEAT_SUSPEND\n"); spin_lock_irqsave(&isp1362_hcd->lock, flags); isp1362_write_reg32(isp1362_hcd, HCRHPORT1 + wIndex, RH_PS_PSS); isp1362_hcd->rhport[wIndex] = @@ -1679,7 +1674,7 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, spin_unlock_irqrestore(&isp1362_hcd->lock, flags); break; case USB_PORT_FEAT_POWER: - _DBG(0, "USB_PORT_FEAT_POWER\n"); + DBG(0, "USB_PORT_FEAT_POWER\n"); spin_lock_irqsave(&isp1362_hcd->lock, flags); isp1362_write_reg32(isp1362_hcd, HCRHPORT1 + wIndex, RH_PS_PPS); isp1362_hcd->rhport[wIndex] = @@ -1687,7 +1682,7 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, spin_unlock_irqrestore(&isp1362_hcd->lock, flags); break; case USB_PORT_FEAT_RESET: - _DBG(0, "USB_PORT_FEAT_RESET\n"); + DBG(0, "USB_PORT_FEAT_RESET\n"); spin_lock_irqsave(&isp1362_hcd->lock, flags); t1 = jiffies + msecs_to_jiffies(USB_RESET_WIDTH); @@ -1721,7 +1716,7 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, default: error: /* "protocol stall" on error */ - _DBG(0, "PROTOCOL STALL\n"); + DBG(0, "PROTOCOL STALL\n"); retval = -EPIPE; } @@ -1913,20 +1908,6 @@ static int isp1362_bus_resume(struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -#ifdef STUB_DEBUG_FILE - -static inline void create_debug_file(struct isp1362_hcd *isp1362_hcd) -{ -} -static inline void remove_debug_file(struct isp1362_hcd *isp1362_hcd) -{ -} - -#else - -#include <linux/proc_fs.h> -#include <linux/seq_file.h> - static void dump_irq(struct seq_file *s, char *label, u16 mask) { seq_printf(s, "%-15s %04x%s%s%s%s%s%s\n", label, mask, @@ -2069,7 +2050,7 @@ static void dump_regs(struct seq_file *s, struct isp1362_hcd *isp1362_hcd) isp1362_read_reg16(isp1362_hcd, HCATLDTCTO)); } -static int proc_isp1362_show(struct seq_file *s, void *unused) +static int isp1362_show(struct seq_file *s, void *unused) { struct isp1362_hcd *isp1362_hcd = s->private; struct isp1362_ep *ep; @@ -2173,41 +2154,31 @@ static int proc_isp1362_show(struct seq_file *s, void *unused) return 0; } -static int proc_isp1362_open(struct inode *inode, struct file *file) +static int isp1362_open(struct inode *inode, struct file *file) { - return single_open(file, proc_isp1362_show, PDE_DATA(inode)); + return single_open(file, isp1362_show, inode); } -static const struct file_operations proc_ops = { - .open = proc_isp1362_open, +static const struct file_operations debug_ops = { + .open = isp1362_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; /* expect just one isp1362_hcd per system */ -static const char proc_filename[] = "driver/isp1362"; - static void create_debug_file(struct isp1362_hcd *isp1362_hcd) { - struct proc_dir_entry *pde; - - pde = proc_create_data(proc_filename, 0, NULL, &proc_ops, isp1362_hcd); - if (pde == NULL) { - pr_warning("%s: Failed to create debug file '%s'\n", __func__, proc_filename); - return; - } - isp1362_hcd->pde = pde; + isp1362_hcd->debug_file = debugfs_create_file("isp1362", S_IRUGO, + usb_debug_root, + isp1362_hcd, &debug_ops); } static void remove_debug_file(struct isp1362_hcd *isp1362_hcd) { - if (isp1362_hcd->pde) - remove_proc_entry(proc_filename, NULL); + debugfs_remove(isp1362_hcd->debug_file); } -#endif - /*-------------------------------------------------------------------------*/ static void __isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd) @@ -2754,7 +2725,7 @@ static int isp1362_probe(struct platform_device *pdev) INIT_LIST_HEAD(&isp1362_hcd->periodic); INIT_LIST_HEAD(&isp1362_hcd->isoc); INIT_LIST_HEAD(&isp1362_hcd->remove_list); - isp1362_hcd->board = pdev->dev.platform_data; + isp1362_hcd->board = dev_get_platdata(&pdev->dev); #if USE_PLATFORM_DELAY if (!isp1362_hcd->board->delay) { dev_err(hcd->self.controller, "No platform delay function given\n"); diff --git a/drivers/usb/host/isp1362.h b/drivers/usb/host/isp1362.h index 0f97820e65be..3b0b4847c3a9 100644 --- a/drivers/usb/host/isp1362.h +++ b/drivers/usb/host/isp1362.h @@ -76,14 +76,14 @@ static inline void delayed_insw(unsigned int addr, void *buf, int len) #define ISP1362_REG_WRITE_OFFSET 0x80 -#ifdef ISP1362_DEBUG -typedef const unsigned int isp1362_reg_t; - #define REG_WIDTH_16 0x000 #define REG_WIDTH_32 0x100 #define REG_WIDTH_MASK 0x100 #define REG_NO_MASK 0x0ff +#ifdef ISP1362_DEBUG +typedef const unsigned int isp1362_reg_t; + #define REG_ACCESS_R 0x200 #define REG_ACCESS_W 0x400 #define REG_ACCESS_RW 0x600 @@ -91,9 +91,6 @@ typedef const unsigned int isp1362_reg_t; #define ISP1362_REG_NO(r) ((r) & REG_NO_MASK) -#define _BUG_ON(x) BUG_ON(x) -#define _WARN_ON(x) WARN_ON(x) - #define ISP1362_REG(name, addr, width, rw) \ static isp1362_reg_t ISP1362_REG_##name = ((addr) | (width) | (rw)) @@ -102,8 +99,6 @@ static isp1362_reg_t ISP1362_REG_##name = ((addr) | (width) | (rw)) #else typedef const unsigned char isp1362_reg_t; #define ISP1362_REG_NO(r) (r) -#define _BUG_ON(x) do {} while (0) -#define _WARN_ON(x) do {} while (0) #define ISP1362_REG(name, addr, width, rw) \ static isp1362_reg_t ISP1362_REG_##name = addr @@ -485,7 +480,7 @@ struct isp1362_hcd { struct isp1362_platform_data *board; - struct proc_dir_entry *pde; + struct dentry *debug_file; unsigned long stat1, stat2, stat4, stat8, stat16; /* HC registers */ @@ -587,21 +582,11 @@ static inline struct usb_hcd *isp1362_hcd_to_hcd(struct isp1362_hcd *isp1362_hcd * ISP1362 HW Interface */ -#ifdef ISP1362_DEBUG #define DBG(level, fmt...) \ do { \ if (dbg_level > level) \ pr_debug(fmt); \ } while (0) -#define _DBG(level, fmt...) \ - do { \ - if (dbg_level > level) \ - printk(fmt); \ - } while (0) -#else -#define DBG(fmt...) do {} while (0) -#define _DBG DBG -#endif #ifdef VERBOSE # define VDBG(fmt...) DBG(3, fmt) @@ -645,9 +630,7 @@ static inline struct usb_hcd *isp1362_hcd_to_hcd(struct isp1362_hcd *isp1362_hcd */ static void isp1362_write_addr(struct isp1362_hcd *isp1362_hcd, isp1362_reg_t reg) { - /*_BUG_ON((reg & ISP1362_REG_WRITE_OFFSET) && !(reg & REG_ACCESS_W));*/ REG_ACCESS_TEST(reg); - _BUG_ON(!irqs_disabled()); DUMMY_DELAY_ACCESS; writew(ISP1362_REG_NO(reg), isp1362_hcd->addr_reg); DUMMY_DELAY_ACCESS; @@ -656,7 +639,6 @@ static void isp1362_write_addr(struct isp1362_hcd *isp1362_hcd, isp1362_reg_t re static void isp1362_write_data16(struct isp1362_hcd *isp1362_hcd, u16 val) { - _BUG_ON(!irqs_disabled()); DUMMY_DELAY_ACCESS; writew(val, isp1362_hcd->data_reg); } @@ -665,7 +647,6 @@ static u16 isp1362_read_data16(struct isp1362_hcd *isp1362_hcd) { u16 val; - _BUG_ON(!irqs_disabled()); DUMMY_DELAY_ACCESS; val = readw(isp1362_hcd->data_reg); @@ -674,7 +655,6 @@ static u16 isp1362_read_data16(struct isp1362_hcd *isp1362_hcd) static void isp1362_write_data32(struct isp1362_hcd *isp1362_hcd, u32 val) { - _BUG_ON(!irqs_disabled()); #if USE_32BIT DUMMY_DELAY_ACCESS; writel(val, isp1362_hcd->data_reg); @@ -690,7 +670,6 @@ static u32 isp1362_read_data32(struct isp1362_hcd *isp1362_hcd) { u32 val; - _BUG_ON(!irqs_disabled()); #if USE_32BIT DUMMY_DELAY_ACCESS; val = readl(isp1362_hcd->data_reg); @@ -713,8 +692,6 @@ static void isp1362_read_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 le if (!len) return; - _BUG_ON(!irqs_disabled()); - RDBG("%s: Reading %d byte from fifo to mem @ %p\n", __func__, len, buf); #if USE_32BIT if (len >= 4) { @@ -760,8 +737,6 @@ static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 l return; } - _BUG_ON(!irqs_disabled()); - RDBG("%s: Writing %d byte to fifo from memory @%p\n", __func__, len, buf); #if USE_32BIT if (len >= 4) { @@ -854,7 +829,6 @@ static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 l isp1362_write_reg32(d, r, __v & ~m); \ } -#ifdef ISP1362_DEBUG #define isp1362_show_reg(d, r) { \ if ((ISP1362_REG_##r & REG_WIDTH_MASK) == REG_WIDTH_32) \ DBG(0, "%-12s[%02x]: %08x\n", #r, \ @@ -863,9 +837,6 @@ static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 l DBG(0, "%-12s[%02x]: %04x\n", #r, \ ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg16(d, r)); \ } -#else -#define isp1362_show_reg(d, r) do {} while (0) -#endif static void __attribute__((__unused__)) isp1362_show_regs(struct isp1362_hcd *isp1362_hcd) { @@ -923,10 +894,6 @@ static void __attribute__((__unused__)) isp1362_show_regs(struct isp1362_hcd *is static void isp1362_write_diraddr(struct isp1362_hcd *isp1362_hcd, u16 offset, u16 len) { - _BUG_ON(offset & 1); - _BUG_ON(offset >= ISP1362_BUF_SIZE); - _BUG_ON(len > ISP1362_BUF_SIZE); - _BUG_ON(offset + len > ISP1362_BUF_SIZE); len = (len + 1) & ~1; isp1362_clr_mask16(isp1362_hcd, HCDMACFG, HCDMACFG_CTR_ENABLE); @@ -936,42 +903,32 @@ static void isp1362_write_diraddr(struct isp1362_hcd *isp1362_hcd, u16 offset, u static void isp1362_read_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len) { - _BUG_ON(offset & 1); - isp1362_write_diraddr(isp1362_hcd, offset, len); DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %p\n", __func__, len, offset, buf); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); - _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA); isp1362_read_fifo(isp1362_hcd, buf, len); - _WARN_ON(!(isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); - _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); } static void isp1362_write_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len) { - _BUG_ON(offset & 1); - isp1362_write_diraddr(isp1362_hcd, offset, len); DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %p\n", __func__, len, offset, buf); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); - _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA | ISP1362_REG_WRITE_OFFSET); isp1362_write_fifo(isp1362_hcd, buf, len); - _WARN_ON(!(isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); - _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); } static void __attribute__((unused)) dump_data(char *buf, int len) @@ -1002,7 +959,7 @@ static void __attribute__((unused)) dump_data(char *buf, int len) } } -#if defined(ISP1362_DEBUG) && defined(PTD_TRACE) +#if defined(PTD_TRACE) static void dump_ptd(struct ptd *ptd) { diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index 3df49b169b53..df931e9ba5b5 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -351,7 +351,7 @@ static int isp1760_plat_probe(struct platform_device *pdev) struct resource *mem_res; struct resource *irq_res; resource_size_t mem_size; - struct isp1760_platform_data *priv = pdev->dev.platform_data; + struct isp1760_platform_data *priv = dev_get_platdata(&pdev->dev); unsigned int devflags = 0; unsigned long irqflags = IRQF_SHARED; diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 9677f6831209..caa3764a3407 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -31,8 +31,8 @@ #define at91_for_each_port(index) \ for ((index) = 0; (index) < AT91_MAX_USBH_PORTS; (index)++) -/* interface and function clocks; sometimes also an AHB clock */ -static struct clk *iclk, *fclk, *hclk; +/* interface, function and usb clocks; sometimes also an AHB clock */ +static struct clk *iclk, *fclk, *uclk, *hclk; static int clocked; extern int usb_disabled(void); @@ -41,6 +41,10 @@ extern int usb_disabled(void); static void at91_start_clock(void) { + if (IS_ENABLED(CONFIG_COMMON_CLK)) { + clk_set_rate(uclk, 48000000); + clk_prepare_enable(uclk); + } clk_prepare_enable(hclk); clk_prepare_enable(iclk); clk_prepare_enable(fclk); @@ -52,6 +56,8 @@ static void at91_stop_clock(void) clk_disable_unprepare(fclk); clk_disable_unprepare(iclk); clk_disable_unprepare(hclk); + if (IS_ENABLED(CONFIG_COMMON_CLK)) + clk_disable_unprepare(uclk); clocked = 0; } @@ -162,6 +168,14 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, retval = PTR_ERR(hclk); goto err5; } + if (IS_ENABLED(CONFIG_COMMON_CLK)) { + uclk = clk_get(&pdev->dev, "usb_clk"); + if (IS_ERR(uclk)) { + dev_err(&pdev->dev, "failed to get uclk\n"); + retval = PTR_ERR(uclk); + goto err6; + } + } at91_start_hc(pdev); ohci_hcd_init(hcd_to_ohci(hcd)); @@ -173,6 +187,9 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, /* Error handling */ at91_stop_hc(pdev); + if (IS_ENABLED(CONFIG_COMMON_CLK)) + clk_put(uclk); + err6: clk_put(hclk); err5: clk_put(fclk); @@ -212,12 +229,12 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd, release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); + if (IS_ENABLED(CONFIG_COMMON_CLK)) + clk_put(uclk); clk_put(hclk); clk_put(fclk); clk_put(iclk); fclk = iclk = hclk = NULL; - - dev_set_drvdata(&pdev->dev, NULL); } /*-------------------------------------------------------------------------*/ @@ -225,7 +242,7 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd, static int ohci_at91_reset (struct usb_hcd *hcd) { - struct at91_usbh_data *board = hcd->self.controller->platform_data; + struct at91_usbh_data *board = dev_get_platdata(hcd->self.controller); struct ohci_hcd *ohci = hcd_to_ohci (hcd); int ret; @@ -280,7 +297,7 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port) */ static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf) { - struct at91_usbh_data *pdata = hcd->self.controller->platform_data; + struct at91_usbh_data *pdata = dev_get_platdata(hcd->self.controller); int length = ohci_hub_status_data(hcd, buf); int port; @@ -301,7 +318,7 @@ static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf) static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { - struct at91_usbh_data *pdata = hcd->self.controller->platform_data; + struct at91_usbh_data *pdata = dev_get_platdata(hcd->self.controller); struct usb_hub_descriptor *desc; int ret = -EINVAL; u32 *data = (u32 *)buf; @@ -461,7 +478,7 @@ static const struct hc_driver ohci_at91_hc_driver = { static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data) { struct platform_device *pdev = data; - struct at91_usbh_data *pdata = pdev->dev.platform_data; + struct at91_usbh_data *pdata = dev_get_platdata(&pdev->dev); int val, gpio, port; /* From the GPIO notifying the over-current situation, find @@ -567,7 +584,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) if (ret) return ret; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (pdata) { at91_for_each_port(i) { @@ -643,7 +660,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) { - struct at91_usbh_data *pdata = pdev->dev.platform_data; + struct at91_usbh_data *pdata = dev_get_platdata(&pdev->dev); int i; if (pdata) { diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c index 6aaa9c9c8eb0..9be59f11e051 100644 --- a/drivers/usb/host/ohci-da8xx.c +++ b/drivers/usb/host/ohci-da8xx.c @@ -85,7 +85,7 @@ static void ohci_da8xx_ocic_handler(struct da8xx_ohci_root_hub *hub, static int ohci_da8xx_init(struct usb_hcd *hcd) { struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev->platform_data; + struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); int result; u32 rh_a; @@ -171,7 +171,7 @@ static int ohci_da8xx_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev->platform_data; + struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); int temp; switch (typeReq) { @@ -292,7 +292,7 @@ static const struct hc_driver ohci_da8xx_hc_driver = { static int usb_hcd_da8xx_probe(const struct hc_driver *driver, struct platform_device *pdev) { - struct da8xx_ohci_root_hub *hub = pdev->dev.platform_data; + struct da8xx_ohci_root_hub *hub = dev_get_platdata(&pdev->dev); struct usb_hcd *hcd; struct resource *mem; int error, irq; @@ -380,7 +380,7 @@ err0: static inline void usb_hcd_da8xx_remove(struct usb_hcd *hcd, struct platform_device *pdev) { - struct da8xx_ohci_root_hub *hub = pdev->dev.platform_data; + struct da8xx_ohci_root_hub *hub = dev_get_platdata(&pdev->dev); hub->ocic_notify(NULL); usb_remove_hcd(hcd); diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index 8704e9fa5a80..84a20d5223b9 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -30,83 +30,6 @@ static struct clk *usb_host_clock; -static void ep93xx_start_hc(struct device *dev) -{ - clk_enable(usb_host_clock); -} - -static void ep93xx_stop_hc(struct device *dev) -{ - clk_disable(usb_host_clock); -} - -static int usb_hcd_ep93xx_probe(const struct hc_driver *driver, - struct platform_device *pdev) -{ - int retval; - struct usb_hcd *hcd; - - if (pdev->resource[1].flags != IORESOURCE_IRQ) { - dev_dbg(&pdev->dev, "resource[1] is not IORESOURCE_IRQ\n"); - return -ENOMEM; - } - - hcd = usb_create_hcd(driver, &pdev->dev, "ep93xx"); - if (hcd == NULL) - return -ENOMEM; - - hcd->rsrc_start = pdev->resource[0].start; - hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1; - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - usb_put_hcd(hcd); - retval = -EBUSY; - goto err1; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (hcd->regs == NULL) { - dev_dbg(&pdev->dev, "ioremap failed\n"); - retval = -ENOMEM; - goto err2; - } - - usb_host_clock = clk_get(&pdev->dev, NULL); - if (IS_ERR(usb_host_clock)) { - dev_dbg(&pdev->dev, "clk_get failed\n"); - retval = PTR_ERR(usb_host_clock); - goto err3; - } - - ep93xx_start_hc(&pdev->dev); - - ohci_hcd_init(hcd_to_ohci(hcd)); - - retval = usb_add_hcd(hcd, pdev->resource[1].start, 0); - if (retval == 0) - return retval; - - ep93xx_stop_hc(&pdev->dev); -err3: - iounmap(hcd->regs); -err2: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -err1: - usb_put_hcd(hcd); - - return retval; -} - -static void usb_hcd_ep93xx_remove(struct usb_hcd *hcd, - struct platform_device *pdev) -{ - usb_remove_hcd(hcd); - ep93xx_stop_hc(&pdev->dev); - clk_put(usb_host_clock); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - usb_put_hcd(hcd); -} - static int ohci_ep93xx_start(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci(hcd); @@ -147,15 +70,57 @@ static struct hc_driver ohci_ep93xx_hc_driver = { .start_port_reset = ohci_start_port_reset, }; -extern int usb_disabled(void); - static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev) { + struct usb_hcd *hcd; + struct resource *res; + int irq; int ret; - ret = -ENODEV; - if (!usb_disabled()) - ret = usb_hcd_ep93xx_probe(&ohci_ep93xx_hc_driver, pdev); + if (usb_disabled()) + return -ENODEV; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENXIO; + + hcd = usb_create_hcd(&ohci_ep93xx_hc_driver, &pdev->dev, "ep93xx"); + if (!hcd) + return -ENOMEM; + + hcd->rsrc_start = res->start; + hcd->rsrc_len = resource_size(res); + + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + ret = PTR_ERR(hcd->regs); + goto err_put_hcd; + } + + usb_host_clock = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(usb_host_clock)) { + ret = PTR_ERR(usb_host_clock); + goto err_put_hcd; + } + + clk_enable(usb_host_clock); + + ohci_hcd_init(hcd_to_ohci(hcd)); + + ret = usb_add_hcd(hcd, irq, 0); + if (ret) + goto err_clk_disable; + + return 0; + +err_clk_disable: + clk_disable(usb_host_clock); +err_put_hcd: + usb_put_hcd(hcd); return ret; } @@ -164,7 +129,9 @@ static int ohci_hcd_ep93xx_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - usb_hcd_ep93xx_remove(hcd, pdev); + usb_remove_hcd(hcd); + clk_disable(usb_host_clock); + usb_put_hcd(hcd); return 0; } @@ -179,7 +146,7 @@ static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_ msleep(5); ohci->next_statechange = jiffies; - ep93xx_stop_hc(&pdev->dev); + clk_disable(usb_host_clock); return 0; } @@ -192,7 +159,7 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev) msleep(5); ohci->next_statechange = jiffies; - ep93xx_start_hc(&pdev->dev); + clk_enable(usb_host_clock); ohci_resume(hcd, false); return 0; diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index b0b542c14e31..dc6ee9adacf5 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -100,7 +100,7 @@ static const struct hc_driver exynos_ohci_hc_driver = { static int exynos_ohci_probe(struct platform_device *pdev) { - struct exynos4_ohci_platdata *pdata = pdev->dev.platform_data; + struct exynos4_ohci_platdata *pdata = dev_get_platdata(&pdev->dev); struct exynos_ohci_hcd *exynos_ohci; struct usb_hcd *hcd; struct ohci_hcd *ohci; diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index a9d3437da220..8f6b695af6a4 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -938,8 +938,8 @@ static void ohci_stop (struct usb_hcd *hcd) if (quirk_nec(ohci)) flush_work(&ohci->nec_work); - ohci_usb_reset (ohci); ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); + ohci_usb_reset(ohci); free_irq(hcd->irq, hcd); hcd->irq = 0; diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 8747fa6a51b7..31d3a12eb486 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -191,7 +191,7 @@ static void start_hnp(struct ohci_hcd *ohci) static int ohci_omap_init(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci(hcd); - struct omap_usb_config *config = hcd->self.controller->platform_data; + struct omap_usb_config *config = dev_get_platdata(hcd->self.controller); int need_transceiver = (config->otg != 0); int ret; @@ -427,7 +427,7 @@ ohci_omap_start (struct usb_hcd *hcd) if (!host_enabled) return 0; - config = hcd->self.controller->platform_data; + config = dev_get_platdata(hcd->self.controller); if (config->otg || config->rwc) { ohci->hc_control = OHCI_CTRL_RWC; writel(OHCI_CTRL_RWC, &ohci->regs->control); diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c index 8f713571a0b7..a09af26f69ed 100644 --- a/drivers/usb/host/ohci-omap3.c +++ b/drivers/usb/host/ohci-omap3.c @@ -231,14 +231,6 @@ static int ohci_hcd_omap3_remove(struct platform_device *pdev) return 0; } -static void ohci_hcd_omap3_shutdown(struct platform_device *pdev) -{ - struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - static const struct of_device_id omap_ohci_dt_ids[] = { { .compatible = "ti,ohci-omap3" }, { } @@ -249,7 +241,7 @@ MODULE_DEVICE_TABLE(of, omap_ohci_dt_ids); static struct platform_driver ohci_hcd_omap3_driver = { .probe = ohci_hcd_omap3_probe, .remove = ohci_hcd_omap3_remove, - .shutdown = ohci_hcd_omap3_shutdown, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "ohci-omap3", .of_match_table = omap_ohci_dt_ids, diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 08613e241894..ec337c2bd5e0 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -289,7 +289,7 @@ static struct pci_driver ohci_pci_driver = { .remove = usb_hcd_pci_remove, .shutdown = usb_hcd_pci_shutdown, -#ifdef CONFIG_PM_SLEEP +#ifdef CONFIG_PM .driver = { .pm = &usb_hcd_pci_pm_ops }, @@ -304,6 +304,13 @@ static int __init ohci_pci_init(void) pr_info("%s: " DRIVER_DESC "\n", hcd_name); ohci_init_driver(&ohci_pci_hc_driver, &pci_overrides); + +#ifdef CONFIG_PM + /* Entries for the PCI suspend/resume callbacks are special */ + ohci_pci_hc_driver.pci_suspend = ohci_suspend; + ohci_pci_hc_driver.pci_resume = ohci_resume; +#endif + return pci_register_driver(&ohci_pci_driver); } module_init(ohci_pci_init); diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c index bc30475c3a23..a4c6410f0ed4 100644 --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -33,7 +33,7 @@ static const char hcd_name[] = "ohci-platform"; static int ohci_platform_reset(struct usb_hcd *hcd) { struct platform_device *pdev = to_platform_device(hcd->self.controller); - struct usb_ohci_pdata *pdata = pdev->dev.platform_data; + struct usb_ohci_pdata *pdata = dev_get_platdata(&pdev->dev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); if (pdata->big_endian_desc) @@ -59,7 +59,7 @@ static int ohci_platform_probe(struct platform_device *dev) { struct usb_hcd *hcd; struct resource *res_mem; - struct usb_ohci_pdata *pdata = dev->dev.platform_data; + struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev); int irq; int err = -ENOMEM; @@ -124,7 +124,7 @@ err_power: static int ohci_platform_remove(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); - struct usb_ohci_pdata *pdata = dev->dev.platform_data; + struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev); usb_remove_hcd(hcd); usb_put_hcd(hcd); @@ -139,7 +139,7 @@ static int ohci_platform_remove(struct platform_device *dev) static int ohci_platform_suspend(struct device *dev) { - struct usb_ohci_pdata *pdata = dev->platform_data; + struct usb_ohci_pdata *pdata = dev_get_platdata(dev); struct platform_device *pdev = container_of(dev, struct platform_device, dev); @@ -152,7 +152,7 @@ static int ohci_platform_suspend(struct device *dev) static int ohci_platform_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct usb_ohci_pdata *pdata = dev->platform_data; + struct usb_ohci_pdata *pdata = dev_get_platdata(dev); struct platform_device *pdev = container_of(dev, struct platform_device, dev); diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 8294e2fcc2f6..75f5a1e2f01e 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -200,15 +200,6 @@ static int ohci_hcd_ppc_of_remove(struct platform_device *op) return 0; } -static void ohci_hcd_ppc_of_shutdown(struct platform_device *op) -{ - struct usb_hcd *hcd = platform_get_drvdata(op); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - - static const struct of_device_id ohci_hcd_ppc_of_match[] = { #ifdef CONFIG_USB_OHCI_HCD_PPC_OF_BE { @@ -243,7 +234,7 @@ MODULE_DEVICE_TABLE(of, ohci_hcd_ppc_of_match); static struct platform_driver ohci_hcd_ppc_of_driver = { .probe = ohci_hcd_ppc_of_probe, .remove = ohci_hcd_ppc_of_remove, - .shutdown = ohci_hcd_ppc_of_shutdown, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "ppc-of-ohci", .owner = THIS_MODULE, diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 3a9c01d8b79c..93371a235e82 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -219,7 +219,7 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) struct pxaohci_platform_data *inf; uint32_t uhchr; - inf = dev->platform_data; + inf = dev_get_platdata(dev); clk_prepare_enable(ohci->clk); @@ -256,7 +256,7 @@ static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev) struct pxaohci_platform_data *inf; uint32_t uhccoms; - inf = dev->platform_data; + inf = dev_get_platdata(dev); if (cpu_is_pxa3xx()) pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self); @@ -364,7 +364,7 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device if (retval) return retval; - inf = pdev->dev.platform_data; + inf = dev_get_platdata(&pdev->dev); if (!inf) return -ENODEV; @@ -577,7 +577,7 @@ static int ohci_hcd_pxa27x_drv_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); - struct pxaohci_platform_data *inf = dev->platform_data; + struct pxaohci_platform_data *inf = dev_get_platdata(dev); int status; if (time_before(jiffies, ohci->ohci.next_statechange)) diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index e125770b893c..4919afa4125e 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -38,12 +38,12 @@ static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc); static struct s3c2410_hcd_info *to_s3c2410_info(struct usb_hcd *hcd) { - return hcd->self.controller->platform_data; + return dev_get_platdata(hcd->self.controller); } static void s3c2410_start_hc(struct platform_device *dev, struct usb_hcd *hcd) { - struct s3c2410_hcd_info *info = dev->dev.platform_data; + struct s3c2410_hcd_info *info = dev_get_platdata(&dev->dev); dev_dbg(&dev->dev, "s3c2410_start_hc:\n"); @@ -63,7 +63,7 @@ static void s3c2410_start_hc(struct platform_device *dev, struct usb_hcd *hcd) static void s3c2410_stop_hc(struct platform_device *dev) { - struct s3c2410_hcd_info *info = dev->dev.platform_data; + struct s3c2410_hcd_info *info = dev_get_platdata(&dev->dev); dev_dbg(&dev->dev, "s3c2410_stop_hc:\n"); @@ -339,10 +339,11 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver, struct platform_device *dev) { struct usb_hcd *hcd = NULL; + struct s3c2410_hcd_info *info = dev_get_platdata(&dev->dev); int retval; - s3c2410_usb_set_power(dev->dev.platform_data, 1, 1); - s3c2410_usb_set_power(dev->dev.platform_data, 2, 1); + s3c2410_usb_set_power(info, 1, 1); + s3c2410_usb_set_power(info, 2, 1); hcd = usb_create_hcd(driver, &dev->dev, "s3c24xx"); if (hcd == NULL) diff --git a/drivers/usb/host/ohci-tilegx.c b/drivers/usb/host/ohci-tilegx.c index 197d514fe0d1..22540ab71f55 100644 --- a/drivers/usb/host/ohci-tilegx.c +++ b/drivers/usb/host/ohci-tilegx.c @@ -95,7 +95,7 @@ static const struct hc_driver ohci_tilegx_hc_driver = { static int ohci_hcd_tilegx_drv_probe(struct platform_device *pdev) { struct usb_hcd *hcd; - struct tilegx_usb_platform_data *pdata = pdev->dev.platform_data; + struct tilegx_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); pte_t pte = { 0 }; int my_cpu = smp_processor_id(); int ret; @@ -175,7 +175,7 @@ err_hcd: static int ohci_hcd_tilegx_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct tilegx_usb_platform_data* pdata = pdev->dev.platform_data; + struct tilegx_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); usb_remove_hcd(hcd); usb_put_hcd(hcd); diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index b9848e4d3d44..2c76ef1320ea 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -735,32 +735,6 @@ static int handshake(void __iomem *ptr, u32 mask, u32 done, return -ETIMEDOUT; } -#define PCI_DEVICE_ID_INTEL_LYNX_POINT_XHCI 0x8C31 -#define PCI_DEVICE_ID_INTEL_LYNX_POINT_LP_XHCI 0x9C31 - -bool usb_is_intel_ppt_switchable_xhci(struct pci_dev *pdev) -{ - return pdev->class == PCI_CLASS_SERIAL_USB_XHCI && - pdev->vendor == PCI_VENDOR_ID_INTEL && - pdev->device == PCI_DEVICE_ID_INTEL_PANTHERPOINT_XHCI; -} - -/* The Intel Lynx Point chipset also has switchable ports. */ -bool usb_is_intel_lpt_switchable_xhci(struct pci_dev *pdev) -{ - return pdev->class == PCI_CLASS_SERIAL_USB_XHCI && - pdev->vendor == PCI_VENDOR_ID_INTEL && - (pdev->device == PCI_DEVICE_ID_INTEL_LYNX_POINT_XHCI || - pdev->device == PCI_DEVICE_ID_INTEL_LYNX_POINT_LP_XHCI); -} - -bool usb_is_intel_switchable_xhci(struct pci_dev *pdev) -{ - return usb_is_intel_ppt_switchable_xhci(pdev) || - usb_is_intel_lpt_switchable_xhci(pdev); -} -EXPORT_SYMBOL_GPL(usb_is_intel_switchable_xhci); - /* * Intel's Panther Point chipset has two host controllers (EHCI and xHCI) that * share some number of ports. These ports can be switched between either @@ -779,9 +753,23 @@ EXPORT_SYMBOL_GPL(usb_is_intel_switchable_xhci); * terminations before switching the USB 2.0 wires over, so that USB 3.0 * devices connect at SuperSpeed, rather than at USB 2.0 speeds. */ -void usb_enable_xhci_ports(struct pci_dev *xhci_pdev) +void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev) { u32 ports_available; + bool ehci_found = false; + struct pci_dev *companion = NULL; + + /* make sure an intel EHCI controller exists */ + for_each_pci_dev(companion) { + if (companion->class == PCI_CLASS_SERIAL_USB_EHCI && + companion->vendor == PCI_VENDOR_ID_INTEL) { + ehci_found = true; + break; + } + } + + if (!ehci_found) + return; /* Don't switchover the ports if the user hasn't compiled the xHCI * driver. Otherwise they will see "dead" USB ports that don't power @@ -840,7 +828,7 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev) dev_dbg(&xhci_pdev->dev, "USB 2.0 ports that are now switched over " "to xHCI: 0x%x\n", ports_available); } -EXPORT_SYMBOL_GPL(usb_enable_xhci_ports); +EXPORT_SYMBOL_GPL(usb_enable_intel_xhci_ports); void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) { @@ -921,8 +909,8 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev) writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); hc_init: - if (usb_is_intel_switchable_xhci(pdev)) - usb_enable_xhci_ports(pdev); + if (pdev->vendor == PCI_VENDOR_ID_INTEL) + usb_enable_intel_xhci_ports(pdev); op_reg_base = base + XHCI_HC_LENGTH(readl(base)); diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h index 978c849f9c9a..ed6700d00fe6 100644 --- a/drivers/usb/host/pci-quirks.h +++ b/drivers/usb/host/pci-quirks.h @@ -8,8 +8,7 @@ int usb_amd_find_chipset_info(void); void usb_amd_dev_put(void); void usb_amd_quirk_pll_disable(void); void usb_amd_quirk_pll_enable(void); -bool usb_is_intel_switchable_xhci(struct pci_dev *pdev); -void usb_enable_xhci_ports(struct pci_dev *xhci_pdev); +void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev); void usb_disable_xhci_ports(struct pci_dev *xhci_pdev); void sb800_prefetch(struct device *dev, int on); #else diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index a6fd8f5371df..2ad004ae747c 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -2393,7 +2393,7 @@ static const struct dev_pm_ops r8a66597_dev_pm_ops = { static int r8a66597_remove(struct platform_device *pdev) { - struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); + struct r8a66597 *r8a66597 = platform_get_drvdata(pdev); struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); del_timer_sync(&r8a66597->rh_timer); @@ -2466,8 +2466,8 @@ static int r8a66597_probe(struct platform_device *pdev) } r8a66597 = hcd_to_r8a66597(hcd); memset(r8a66597, 0, sizeof(struct r8a66597)); - dev_set_drvdata(&pdev->dev, r8a66597); - r8a66597->pdata = pdev->dev.platform_data; + platform_set_drvdata(pdev, r8a66597); + r8a66597->pdata = dev_get_platdata(&pdev->dev); r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW; if (r8a66597->pdata->on_chip) { diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index b2ec7fe758dd..5477bf5df218 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -48,6 +48,8 @@ #include <linux/usb/hcd.h> #include <linux/platform_device.h> #include <linux/prefetch.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <asm/io.h> #include <asm/irq.h> @@ -63,11 +65,6 @@ MODULE_ALIAS("platform:sl811-hcd"); #define DRIVER_VERSION "19 May 2005" - -#ifndef DEBUG -# define STUB_DEBUG_FILE -#endif - /* for now, use only one transfer register bank */ #undef USE_B @@ -100,7 +97,8 @@ static void port_power(struct sl811 *sl811, int is_on) if (sl811->board && sl811->board->port_power) { /* switch VBUS, at 500mA unless hub power budget gets set */ - DBG("power %s\n", is_on ? "on" : "off"); + dev_dbg(hcd->self.controller, "power %s\n", + is_on ? "on" : "off"); sl811->board->port_power(hcd->self.controller, is_on); } @@ -282,7 +280,7 @@ static inline void sofirq_on(struct sl811 *sl811) { if (sl811->irq_enable & SL11H_INTMASK_SOFINTR) return; - VDBG("sof irq on\n"); + dev_dbg(sl811_to_hcd(sl811)->self.controller, "sof irq on\n"); sl811->irq_enable |= SL11H_INTMASK_SOFINTR; } @@ -290,7 +288,7 @@ static inline void sofirq_off(struct sl811 *sl811) { if (!(sl811->irq_enable & SL11H_INTMASK_SOFINTR)) return; - VDBG("sof irq off\n"); + dev_dbg(sl811_to_hcd(sl811)->self.controller, "sof irq off\n"); sl811->irq_enable &= ~SL11H_INTMASK_SOFINTR; } @@ -338,7 +336,8 @@ static struct sl811h_ep *start(struct sl811 *sl811, u8 bank) } if (unlikely(list_empty(&ep->hep->urb_list))) { - DBG("empty %p queue?\n", ep); + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "empty %p queue?\n", ep); return NULL; } @@ -391,7 +390,8 @@ static struct sl811h_ep *start(struct sl811 *sl811, u8 bank) status_packet(sl811, ep, urb, bank, control); break; default: - DBG("bad ep%p pid %02x\n", ep, ep->nextpid); + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "bad ep%p pid %02x\n", ep, ep->nextpid); ep = NULL; } return ep; @@ -447,7 +447,8 @@ static void finish_request( } /* periodic deschedule */ - DBG("deschedule qh%d/%p branch %d\n", ep->period, ep, ep->branch); + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "deschedule qh%d/%p branch %d\n", ep->period, ep, ep->branch); for (i = ep->branch; i < PERIODIC_SIZE; i += ep->period) { struct sl811h_ep *temp; struct sl811h_ep **prev = &sl811->periodic[i]; @@ -593,7 +594,8 @@ static inline u8 checkdone(struct sl811 *sl811) ctl = sl811_read(sl811, SL811_EP_A(SL11H_HOSTCTLREG)); if (ctl & SL11H_HCTLMASK_ARM) sl811_write(sl811, SL811_EP_A(SL11H_HOSTCTLREG), 0); - DBG("%s DONE_A: ctrl %02x sts %02x\n", + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "%s DONE_A: ctrl %02x sts %02x\n", (ctl & SL11H_HCTLMASK_ARM) ? "timeout" : "lost", ctl, sl811_read(sl811, SL811_EP_A(SL11H_PKTSTATREG))); @@ -604,7 +606,8 @@ static inline u8 checkdone(struct sl811 *sl811) ctl = sl811_read(sl811, SL811_EP_B(SL11H_HOSTCTLREG)); if (ctl & SL11H_HCTLMASK_ARM) sl811_write(sl811, SL811_EP_B(SL11H_HOSTCTLREG), 0); - DBG("%s DONE_B: ctrl %02x sts %02x\n", + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "%s DONE_B: ctrl %02x sts %02x\n", (ctl & SL11H_HCTLMASK_ARM) ? "timeout" : "lost", ctl, sl811_read(sl811, SL811_EP_B(SL11H_PKTSTATREG))); @@ -665,7 +668,7 @@ retry: * this one has nothing scheduled. */ if (sl811->next_periodic) { - // ERR("overrun to slot %d\n", index); + // dev_err(hcd->self.controller, "overrun to slot %d\n", index); sl811->stat_overrun++; } if (sl811->periodic[index]) @@ -723,7 +726,7 @@ retry: } else if (irqstat & SL11H_INTMASK_RD) { if (sl811->port1 & USB_PORT_STAT_SUSPEND) { - DBG("wakeup\n"); + dev_dbg(hcd->self.controller, "wakeup\n"); sl811->port1 |= USB_PORT_STAT_C_SUSPEND << 16; sl811->stat_wake++; } else @@ -852,8 +855,9 @@ static int sl811h_urb_enqueue( if (ep->maxpacket > H_MAXPACKET) { /* iso packets up to 240 bytes could work... */ - DBG("dev %d ep%d maxpacket %d\n", - udev->devnum, epnum, ep->maxpacket); + dev_dbg(hcd->self.controller, + "dev %d ep%d maxpacket %d\n", udev->devnum, + epnum, ep->maxpacket); retval = -EINVAL; kfree(ep); goto fail; @@ -917,7 +921,8 @@ static int sl811h_urb_enqueue( * to share the faster parts of the tree without needing * dummy/placeholder nodes */ - DBG("schedule qh%d/%p branch %d\n", ep->period, ep, ep->branch); + dev_dbg(hcd->self.controller, "schedule qh%d/%p branch %d\n", + ep->period, ep, ep->branch); for (i = ep->branch; i < PERIODIC_SIZE; i += ep->period) { struct sl811h_ep **prev = &sl811->periodic[i]; struct sl811h_ep *here = *prev; @@ -976,7 +981,8 @@ static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) } else if (sl811->active_a == ep) { if (time_before_eq(sl811->jiffies_a, jiffies)) { /* happens a lot with lowspeed?? */ - DBG("giveup on DONE_A: ctrl %02x sts %02x\n", + dev_dbg(hcd->self.controller, + "giveup on DONE_A: ctrl %02x sts %02x\n", sl811_read(sl811, SL811_EP_A(SL11H_HOSTCTLREG)), sl811_read(sl811, @@ -990,7 +996,8 @@ static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) } else if (sl811->active_b == ep) { if (time_before_eq(sl811->jiffies_a, jiffies)) { /* happens a lot with lowspeed?? */ - DBG("giveup on DONE_B: ctrl %02x sts %02x\n", + dev_dbg(hcd->self.controller, + "giveup on DONE_B: ctrl %02x sts %02x\n", sl811_read(sl811, SL811_EP_B(SL11H_HOSTCTLREG)), sl811_read(sl811, @@ -1008,7 +1015,8 @@ static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) if (urb) finish_request(sl811, ep, urb, 0); else - VDBG("dequeue, urb %p active %s; wait4irq\n", urb, + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "dequeue, urb %p active %s; wait4irq\n", urb, (sl811->active_a == ep) ? "A" : "B"); } else retval = -EINVAL; @@ -1029,7 +1037,7 @@ sl811h_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep) if (!list_empty(&hep->urb_list)) msleep(3); if (!list_empty(&hep->urb_list)) - WARNING("ep %p not empty?\n", ep); + dev_warn(hcd->self.controller, "ep %p not empty?\n", ep); kfree(ep); hep->hcpriv = NULL; @@ -1132,7 +1140,7 @@ sl811h_timer(unsigned long _sl811) switch (signaling) { case SL11H_CTL1MASK_SE0: - DBG("end reset\n"); + dev_dbg(sl811_to_hcd(sl811)->self.controller, "end reset\n"); sl811->port1 = (USB_PORT_STAT_C_RESET << 16) | USB_PORT_STAT_POWER; sl811->ctrl1 = 0; @@ -1141,11 +1149,12 @@ sl811h_timer(unsigned long _sl811) irqstat &= ~SL11H_INTMASK_RD; break; case SL11H_CTL1MASK_K: - DBG("end resume\n"); + dev_dbg(sl811_to_hcd(sl811)->self.controller, "end resume\n"); sl811->port1 &= ~USB_PORT_STAT_SUSPEND; break; default: - DBG("odd timer signaling: %02x\n", signaling); + dev_dbg(sl811_to_hcd(sl811)->self.controller, + "odd timer signaling: %02x\n", signaling); break; } sl811_write(sl811, SL11H_IRQ_STATUS, irqstat); @@ -1243,7 +1252,7 @@ sl811h_hub_control( break; /* 20 msec of resume/K signaling, other irqs blocked */ - DBG("start resume...\n"); + dev_dbg(hcd->self.controller, "start resume...\n"); sl811->irq_enable = 0; sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable); @@ -1281,7 +1290,8 @@ sl811h_hub_control( #ifndef VERBOSE if (*(u16*)(buf+2)) /* only if wPortChange is interesting */ #endif - DBG("GetPortStatus %08x\n", sl811->port1); + dev_dbg(hcd->self.controller, "GetPortStatus %08x\n", + sl811->port1); break; case SetPortFeature: if (wIndex != 1 || wLength != 0) @@ -1293,7 +1303,7 @@ sl811h_hub_control( if (!(sl811->port1 & USB_PORT_STAT_ENABLE)) goto error; - DBG("suspend...\n"); + dev_dbg(hcd->self.controller,"suspend...\n"); sl811->ctrl1 &= ~SL11H_CTL1MASK_SOF_ENA; sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1); break; @@ -1338,7 +1348,7 @@ static int sl811h_bus_suspend(struct usb_hcd *hcd) { // SOFs off - DBG("%s\n", __func__); + dev_dbg(hcd->self.controller, "%s\n", __func__); return 0; } @@ -1346,7 +1356,7 @@ static int sl811h_bus_resume(struct usb_hcd *hcd) { // SOFs on - DBG("%s\n", __func__); + dev_dbg(hcd->self.controller, "%s\n", __func__); return 0; } @@ -1360,16 +1370,6 @@ sl811h_bus_resume(struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -#ifdef STUB_DEBUG_FILE - -static inline void create_debug_file(struct sl811 *sl811) { } -static inline void remove_debug_file(struct sl811 *sl811) { } - -#else - -#include <linux/proc_fs.h> -#include <linux/seq_file.h> - static void dump_irq(struct seq_file *s, char *label, u8 mask) { seq_printf(s, "%s %02x%s%s%s%s%s%s\n", label, mask, @@ -1381,7 +1381,7 @@ static void dump_irq(struct seq_file *s, char *label, u8 mask) (mask & SL11H_INTMASK_DP) ? " dp" : ""); } -static int proc_sl811h_show(struct seq_file *s, void *unused) +static int sl811h_show(struct seq_file *s, void *unused) { struct sl811 *sl811 = s->private; struct sl811h_ep *ep; @@ -1492,34 +1492,31 @@ static int proc_sl811h_show(struct seq_file *s, void *unused) return 0; } -static int proc_sl811h_open(struct inode *inode, struct file *file) +static int sl811h_open(struct inode *inode, struct file *file) { - return single_open(file, proc_sl811h_show, PDE_DATA(inode)); + return single_open(file, sl811h_show, inode->i_private); } -static const struct file_operations proc_ops = { - .open = proc_sl811h_open, +static const struct file_operations debug_ops = { + .open = sl811h_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; /* expect just one sl811 per system */ -static const char proc_filename[] = "driver/sl811h"; - static void create_debug_file(struct sl811 *sl811) { - sl811->pde = proc_create_data(proc_filename, 0, NULL, &proc_ops, sl811); + sl811->debug_file = debugfs_create_file("sl811h", S_IRUGO, + usb_debug_root, sl811, + &debug_ops); } static void remove_debug_file(struct sl811 *sl811) { - if (sl811->pde) - remove_proc_entry(proc_filename, NULL); + debugfs_remove(sl811->debug_file); } -#endif - /*-------------------------------------------------------------------------*/ static void @@ -1648,7 +1645,7 @@ sl811h_probe(struct platform_device *dev) /* refuse to confuse usbcore */ if (dev->dev.dma_mask) { - DBG("no we won't dma\n"); + dev_dbg(&dev->dev, "no we won't dma\n"); return -EINVAL; } @@ -1694,7 +1691,7 @@ sl811h_probe(struct platform_device *dev) spin_lock_init(&sl811->lock); INIT_LIST_HEAD(&sl811->async); - sl811->board = dev->dev.platform_data; + sl811->board = dev_get_platdata(&dev->dev); init_timer(&sl811->timer); sl811->timer.function = sl811h_timer; sl811->timer.data = (unsigned long) sl811; @@ -1716,7 +1713,7 @@ sl811h_probe(struct platform_device *dev) break; default: /* reject case 0, SL11S is less functional */ - DBG("chiprev %02x\n", tmp); + dev_dbg(&dev->dev, "chiprev %02x\n", tmp); retval = -ENXIO; goto err6; } @@ -1747,7 +1744,7 @@ sl811h_probe(struct platform_device *dev) if (!ioaddr) iounmap(addr_reg); err2: - DBG("init error, %d\n", retval); + dev_dbg(&dev->dev, "init error, %d\n", retval); return retval; } diff --git a/drivers/usb/host/sl811.h b/drivers/usb/host/sl811.h index b6b8c1f233dd..1e23ef49bec1 100644 --- a/drivers/usb/host/sl811.h +++ b/drivers/usb/host/sl811.h @@ -122,7 +122,7 @@ struct sl811 { void __iomem *addr_reg; void __iomem *data_reg; struct sl811_platform_data *board; - struct proc_dir_entry *pde; + struct dentry *debug_file; unsigned long stat_insrmv; unsigned long stat_wake; @@ -242,25 +242,8 @@ sl811_read_buf(struct sl811 *sl811, int addr, void *buf, size_t count) /*-------------------------------------------------------------------------*/ -#ifdef DEBUG -#define DBG(stuff...) printk(KERN_DEBUG "sl811: " stuff) -#else -#define DBG(stuff...) do{}while(0) -#endif - -#ifdef VERBOSE -# define VDBG DBG -#else -# define VDBG(stuff...) do{}while(0) -#endif - #ifdef PACKET_TRACE -# define PACKET VDBG +# define PACKET pr_debug("sl811: "stuff) #else # define PACKET(stuff...) do{}while(0) #endif - -#define ERR(stuff...) printk(KERN_ERR "sl811: " stuff) -#define WARNING(stuff...) printk(KERN_WARNING "sl811: " stuff) -#define INFO(stuff...) printk(KERN_INFO "sl811: " stuff) - diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 5c124bf5d018..e402beb5a069 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -1809,9 +1809,9 @@ static int u132_hcd_start(struct usb_hcd *hcd) struct platform_device *pdev = to_platform_device(hcd->self.controller); u16 vendor = ((struct u132_platform_data *) - (pdev->dev.platform_data))->vendor; + dev_get_platdata(&pdev->dev))->vendor; u16 device = ((struct u132_platform_data *) - (pdev->dev.platform_data))->device; + dev_get_platdata(&pdev->dev))->device; mutex_lock(&u132->sw_lock); msleep(10); if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { @@ -3034,7 +3034,7 @@ static void u132_initialise(struct u132 *u132, struct platform_device *pdev) int addrs = MAX_U132_ADDRS; int udevs = MAX_U132_UDEVS; int endps = MAX_U132_ENDPS; - u132->board = pdev->dev.platform_data; + u132->board = dev_get_platdata(&pdev->dev); u132->platform_dev = pdev; u132->power = 0; u132->reset = 0; diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index 5d5e58fdeccc..73503a81ee81 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -580,3 +580,17 @@ void xhci_dbg_ctx(struct xhci_hcd *xhci, xhci_dbg_slot_ctx(xhci, ctx); xhci_dbg_ep_ctx(xhci, ctx, last_ep); } + +void xhci_dbg_trace(struct xhci_hcd *xhci, void (*trace)(struct va_format *), + const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + + va_start(args, fmt); + vaf.fmt = fmt; + vaf.va = &args; + xhci_dbg(xhci, "%pV\n", &vaf); + trace(&vaf); + va_end(args); +} diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h index 8d7a1324e2f3..9fe3225e6c61 100644 --- a/drivers/usb/host/xhci-ext-caps.h +++ b/drivers/usb/host/xhci-ext-caps.h @@ -71,7 +71,7 @@ /* USB 2.0 xHCI 1.0 hardware LMP capability - section 7.2.2.1.3.2 */ #define XHCI_HLC (1 << 19) -#define XHCI_BLC (1 << 19) +#define XHCI_BLC (1 << 20) /* command register values to disable interrupts and halt the HC */ /* start/stop HC execution - do not write unless HC is halted*/ diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 1d3545943c50..fae697ed0b70 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -24,6 +24,7 @@ #include <asm/unaligned.h> #include "xhci.h" +#include "xhci-trace.h" #define PORT_WAKE_BITS (PORT_WKOC_E | PORT_WKDISC_E | PORT_WKCONN_E) #define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \ @@ -461,8 +462,15 @@ void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array, } } +/* Updates Link Status for USB 2.1 port */ +static void xhci_hub_report_usb2_link_state(u32 *status, u32 status_reg) +{ + if ((status_reg & PORT_PLS_MASK) == XDEV_U2) + *status |= USB_PORT_STAT_L1; +} + /* Updates Link Status for super Speed port */ -static void xhci_hub_report_link_state(u32 *status, u32 status_reg) +static void xhci_hub_report_usb3_link_state(u32 *status, u32 status_reg) { u32 pls = status_reg & PORT_PLS_MASK; @@ -528,12 +536,128 @@ void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, u16 wIndex) xhci->port_status_u0 |= 1 << wIndex; if (xhci->port_status_u0 == all_ports_seen_u0) { del_timer_sync(&xhci->comp_mode_recovery_timer); - xhci_dbg(xhci, "All USB3 ports have entered U0 already!\n"); - xhci_dbg(xhci, "Compliance Mode Recovery Timer Deleted.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "All USB3 ports have entered U0 already!"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Compliance Mode Recovery Timer Deleted."); } } } +/* + * Converts a raw xHCI port status into the format that external USB 2.0 or USB + * 3.0 hubs use. + * + * Possible side effects: + * - Mark a port as being done with device resume, + * and ring the endpoint doorbells. + * - Stop the Synopsys redriver Compliance Mode polling. + */ +static u32 xhci_get_port_status(struct usb_hcd *hcd, + struct xhci_bus_state *bus_state, + __le32 __iomem **port_array, + u16 wIndex, u32 raw_port_status) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + u32 status = 0; + int slot_id; + + /* wPortChange bits */ + if (raw_port_status & PORT_CSC) + status |= USB_PORT_STAT_C_CONNECTION << 16; + if (raw_port_status & PORT_PEC) + status |= USB_PORT_STAT_C_ENABLE << 16; + if ((raw_port_status & PORT_OCC)) + status |= USB_PORT_STAT_C_OVERCURRENT << 16; + if ((raw_port_status & PORT_RC)) + status |= USB_PORT_STAT_C_RESET << 16; + /* USB3.0 only */ + if (hcd->speed == HCD_USB3) { + if ((raw_port_status & PORT_PLC)) + status |= USB_PORT_STAT_C_LINK_STATE << 16; + if ((raw_port_status & PORT_WRC)) + status |= USB_PORT_STAT_C_BH_RESET << 16; + } + + if (hcd->speed != HCD_USB3) { + if ((raw_port_status & PORT_PLS_MASK) == XDEV_U3 + && (raw_port_status & PORT_POWER)) + status |= USB_PORT_STAT_SUSPEND; + } + if ((raw_port_status & PORT_PLS_MASK) == XDEV_RESUME && + !DEV_SUPERSPEED(raw_port_status)) { + if ((raw_port_status & PORT_RESET) || + !(raw_port_status & PORT_PE)) + return 0xffffffff; + if (time_after_eq(jiffies, + bus_state->resume_done[wIndex])) { + xhci_dbg(xhci, "Resume USB2 port %d\n", + wIndex + 1); + bus_state->resume_done[wIndex] = 0; + clear_bit(wIndex, &bus_state->resuming_ports); + xhci_set_link_state(xhci, port_array, wIndex, + XDEV_U0); + xhci_dbg(xhci, "set port %d resume\n", + wIndex + 1); + slot_id = xhci_find_slot_id_by_port(hcd, xhci, + wIndex + 1); + if (!slot_id) { + xhci_dbg(xhci, "slot_id is zero\n"); + return 0xffffffff; + } + xhci_ring_device(xhci, slot_id); + bus_state->port_c_suspend |= 1 << wIndex; + bus_state->suspended_ports &= ~(1 << wIndex); + } else { + /* + * The resume has been signaling for less than + * 20ms. Report the port status as SUSPEND, + * let the usbcore check port status again + * and clear resume signaling later. + */ + status |= USB_PORT_STAT_SUSPEND; + } + } + if ((raw_port_status & PORT_PLS_MASK) == XDEV_U0 + && (raw_port_status & PORT_POWER) + && (bus_state->suspended_ports & (1 << wIndex))) { + bus_state->suspended_ports &= ~(1 << wIndex); + if (hcd->speed != HCD_USB3) + bus_state->port_c_suspend |= 1 << wIndex; + } + if (raw_port_status & PORT_CONNECT) { + status |= USB_PORT_STAT_CONNECTION; + status |= xhci_port_speed(raw_port_status); + } + if (raw_port_status & PORT_PE) + status |= USB_PORT_STAT_ENABLE; + if (raw_port_status & PORT_OC) + status |= USB_PORT_STAT_OVERCURRENT; + if (raw_port_status & PORT_RESET) + status |= USB_PORT_STAT_RESET; + if (raw_port_status & PORT_POWER) { + if (hcd->speed == HCD_USB3) + status |= USB_SS_PORT_STAT_POWER; + else + status |= USB_PORT_STAT_POWER; + } + /* Update Port Link State */ + if (hcd->speed == HCD_USB3) { + xhci_hub_report_usb3_link_state(&status, raw_port_status); + /* + * Verify if all USB3 Ports Have entered U0 already. + * Delete Compliance Mode Timer if so. + */ + xhci_del_comp_mod_timer(xhci, raw_port_status, wIndex); + } else { + xhci_hub_report_usb2_link_state(&status, raw_port_status); + } + if (bus_state->port_c_suspend & (1 << wIndex)) + status |= 1 << USB_PORT_FEAT_C_SUSPEND; + + return status; +} + int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { @@ -598,104 +722,20 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, if (!wIndex || wIndex > max_ports) goto error; wIndex--; - status = 0; temp = xhci_readl(xhci, port_array[wIndex]); if (temp == 0xffffffff) { retval = -ENODEV; break; } - xhci_dbg(xhci, "get port status, actual port %d status = 0x%x\n", wIndex, temp); - - /* wPortChange bits */ - if (temp & PORT_CSC) - status |= USB_PORT_STAT_C_CONNECTION << 16; - if (temp & PORT_PEC) - status |= USB_PORT_STAT_C_ENABLE << 16; - if ((temp & PORT_OCC)) - status |= USB_PORT_STAT_C_OVERCURRENT << 16; - if ((temp & PORT_RC)) - status |= USB_PORT_STAT_C_RESET << 16; - /* USB3.0 only */ - if (hcd->speed == HCD_USB3) { - if ((temp & PORT_PLC)) - status |= USB_PORT_STAT_C_LINK_STATE << 16; - if ((temp & PORT_WRC)) - status |= USB_PORT_STAT_C_BH_RESET << 16; - } + status = xhci_get_port_status(hcd, bus_state, port_array, + wIndex, temp); + if (status == 0xffffffff) + goto error; - if (hcd->speed != HCD_USB3) { - if ((temp & PORT_PLS_MASK) == XDEV_U3 - && (temp & PORT_POWER)) - status |= USB_PORT_STAT_SUSPEND; - } - if ((temp & PORT_PLS_MASK) == XDEV_RESUME && - !DEV_SUPERSPEED(temp)) { - if ((temp & PORT_RESET) || !(temp & PORT_PE)) - goto error; - if (time_after_eq(jiffies, - bus_state->resume_done[wIndex])) { - xhci_dbg(xhci, "Resume USB2 port %d\n", - wIndex + 1); - bus_state->resume_done[wIndex] = 0; - clear_bit(wIndex, &bus_state->resuming_ports); - xhci_set_link_state(xhci, port_array, wIndex, - XDEV_U0); - xhci_dbg(xhci, "set port %d resume\n", - wIndex + 1); - slot_id = xhci_find_slot_id_by_port(hcd, xhci, - wIndex + 1); - if (!slot_id) { - xhci_dbg(xhci, "slot_id is zero\n"); - goto error; - } - xhci_ring_device(xhci, slot_id); - bus_state->port_c_suspend |= 1 << wIndex; - bus_state->suspended_ports &= ~(1 << wIndex); - } else { - /* - * The resume has been signaling for less than - * 20ms. Report the port status as SUSPEND, - * let the usbcore check port status again - * and clear resume signaling later. - */ - status |= USB_PORT_STAT_SUSPEND; - } - } - if ((temp & PORT_PLS_MASK) == XDEV_U0 - && (temp & PORT_POWER) - && (bus_state->suspended_ports & (1 << wIndex))) { - bus_state->suspended_ports &= ~(1 << wIndex); - if (hcd->speed != HCD_USB3) - bus_state->port_c_suspend |= 1 << wIndex; - } - if (temp & PORT_CONNECT) { - status |= USB_PORT_STAT_CONNECTION; - status |= xhci_port_speed(temp); - } - if (temp & PORT_PE) - status |= USB_PORT_STAT_ENABLE; - if (temp & PORT_OC) - status |= USB_PORT_STAT_OVERCURRENT; - if (temp & PORT_RESET) - status |= USB_PORT_STAT_RESET; - if (temp & PORT_POWER) { - if (hcd->speed == HCD_USB3) - status |= USB_SS_PORT_STAT_POWER; - else - status |= USB_PORT_STAT_POWER; - } - /* Update Port Link State for super speed ports*/ - if (hcd->speed == HCD_USB3) { - xhci_hub_report_link_state(&status, temp); - /* - * Verify if all USB3 Ports Have entered U0 already. - * Delete Compliance Mode Timer if so. - */ - xhci_del_comp_mod_timer(xhci, temp, wIndex); - } - if (bus_state->port_c_suspend & (1 << wIndex)) - status |= 1 << USB_PORT_FEAT_C_SUSPEND; + xhci_dbg(xhci, "get port status, actual port %d status = 0x%x\n", + wIndex, temp); xhci_dbg(xhci, "Get port status returned 0x%x\n", status); + put_unaligned(cpu_to_le32(status), (__le32 *) buf); break; case SetPortFeature: diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 6f8c2fd47675..53b972c2a09f 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -27,6 +27,7 @@ #include <linux/dma-mapping.h> #include "xhci.h" +#include "xhci-trace.h" /* * Allocates a generic ring segment from the ring pool, sets the dma address, @@ -348,7 +349,8 @@ int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring, return -ENOMEM; xhci_link_rings(xhci, ring, first, last, num_segs); - xhci_dbg(xhci, "ring expansion succeed, now has %d segments\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_ring_expansion, + "ring expansion succeed, now has %d segments", ring->num_segs); return 0; @@ -482,17 +484,6 @@ struct xhci_ring *xhci_dma_to_transfer_ring( return ep->ring; } -/* Only use this when you know stream_info is valid */ -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -static struct xhci_ring *dma_to_stream_ring( - struct xhci_stream_info *stream_info, - u64 address) -{ - return radix_tree_lookup(&stream_info->trb_address_map, - address >> TRB_SEGMENT_SHIFT); -} -#endif /* CONFIG_USB_XHCI_HCD_DEBUGGING */ - struct xhci_ring *xhci_stream_id_to_ring( struct xhci_virt_device *dev, unsigned int ep_index, @@ -510,58 +501,6 @@ struct xhci_ring *xhci_stream_id_to_ring( return ep->stream_info->stream_rings[stream_id]; } -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -static int xhci_test_radix_tree(struct xhci_hcd *xhci, - unsigned int num_streams, - struct xhci_stream_info *stream_info) -{ - u32 cur_stream; - struct xhci_ring *cur_ring; - u64 addr; - - for (cur_stream = 1; cur_stream < num_streams; cur_stream++) { - struct xhci_ring *mapped_ring; - int trb_size = sizeof(union xhci_trb); - - cur_ring = stream_info->stream_rings[cur_stream]; - for (addr = cur_ring->first_seg->dma; - addr < cur_ring->first_seg->dma + TRB_SEGMENT_SIZE; - addr += trb_size) { - mapped_ring = dma_to_stream_ring(stream_info, addr); - if (cur_ring != mapped_ring) { - xhci_warn(xhci, "WARN: DMA address 0x%08llx " - "didn't map to stream ID %u; " - "mapped to ring %p\n", - (unsigned long long) addr, - cur_stream, - mapped_ring); - return -EINVAL; - } - } - /* One TRB after the end of the ring segment shouldn't return a - * pointer to the current ring (although it may be a part of a - * different ring). - */ - mapped_ring = dma_to_stream_ring(stream_info, addr); - if (mapped_ring != cur_ring) { - /* One TRB before should also fail */ - addr = cur_ring->first_seg->dma - trb_size; - mapped_ring = dma_to_stream_ring(stream_info, addr); - } - if (mapped_ring == cur_ring) { - xhci_warn(xhci, "WARN: Bad DMA address 0x%08llx " - "mapped to valid stream ID %u; " - "mapped ring = %p\n", - (unsigned long long) addr, - cur_stream, - mapped_ring); - return -EINVAL; - } - } - return 0; -} -#endif /* CONFIG_USB_XHCI_HCD_DEBUGGING */ - /* * Change an endpoint's internal structure so it supports stream IDs. The * number of requested streams includes stream 0, which cannot be used by device @@ -688,13 +627,6 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, * was any other way, the host controller would assume the ring is * "empty" and wait forever for data to be queued to that stream ID). */ -#if XHCI_DEBUG - /* Do a little test on the radix tree to make sure it returns the - * correct values. - */ - if (xhci_test_radix_tree(xhci, num_streams, stream_info)) - goto cleanup_rings; -#endif return stream_info; @@ -732,7 +664,8 @@ void xhci_setup_streams_ep_input_ctx(struct xhci_hcd *xhci, * fls(0) = 0, fls(0x1) = 1, fls(0x10) = 2, fls(0x100) = 3, etc. */ max_primary_streams = fls(stream_info->num_stream_ctxs) - 2; - xhci_dbg(xhci, "Setting number of stream ctx array entries to %u\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Setting number of stream ctx array entries to %u", 1 << (max_primary_streams + 1)); ep_ctx->ep_info &= cpu_to_le32(~EP_MAXPSTREAMS_MASK); ep_ctx->ep_info |= cpu_to_le32(EP_MAXPSTREAMS(max_primary_streams) @@ -1614,7 +1547,8 @@ static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags) struct device *dev = xhci_to_hcd(xhci)->self.controller; int num_sp = HCS_MAX_SCRATCHPAD(xhci->hcs_params2); - xhci_dbg(xhci, "Allocating %d scratchpad buffers\n", num_sp); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Allocating %d scratchpad buffers", num_sp); if (!num_sp) return 0; @@ -1771,11 +1705,11 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) dma_free_coherent(&pdev->dev, size, xhci->erst.entries, xhci->erst.erst_dma_addr); xhci->erst.entries = NULL; - xhci_dbg(xhci, "Freed ERST\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed ERST"); if (xhci->event_ring) xhci_ring_free(xhci, xhci->event_ring); xhci->event_ring = NULL; - xhci_dbg(xhci, "Freed event ring\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed event ring"); if (xhci->lpm_command) xhci_free_command(xhci, xhci->lpm_command); @@ -1783,7 +1717,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) if (xhci->cmd_ring) xhci_ring_free(xhci, xhci->cmd_ring); xhci->cmd_ring = NULL; - xhci_dbg(xhci, "Freed command ring\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed command ring"); list_for_each_entry_safe(cur_cd, next_cd, &xhci->cancel_cmd_list, cancel_cmd_list) { list_del(&cur_cd->cancel_cmd_list); @@ -1796,22 +1730,24 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) if (xhci->segment_pool) dma_pool_destroy(xhci->segment_pool); xhci->segment_pool = NULL; - xhci_dbg(xhci, "Freed segment pool\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed segment pool"); if (xhci->device_pool) dma_pool_destroy(xhci->device_pool); xhci->device_pool = NULL; - xhci_dbg(xhci, "Freed device context pool\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed device context pool"); if (xhci->small_streams_pool) dma_pool_destroy(xhci->small_streams_pool); xhci->small_streams_pool = NULL; - xhci_dbg(xhci, "Freed small stream array pool\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Freed small stream array pool"); if (xhci->medium_streams_pool) dma_pool_destroy(xhci->medium_streams_pool); xhci->medium_streams_pool = NULL; - xhci_dbg(xhci, "Freed medium stream array pool\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Freed medium stream array pool"); if (xhci->dcbaa) dma_free_coherent(&pdev->dev, sizeof(*xhci->dcbaa), @@ -2037,8 +1973,9 @@ static void xhci_set_hc_event_deq(struct xhci_hcd *xhci) * there might be more events to service. */ temp &= ~ERST_EHB; - xhci_dbg(xhci, "// Write event ring dequeue pointer, " - "preserving EHB bit\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Write event ring dequeue pointer, " + "preserving EHB bit"); xhci_write_64(xhci, ((u64) deq & (u64) ~ERST_PTR_MASK) | temp, &xhci->ir_set->erst_dequeue); } @@ -2061,8 +1998,9 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports, temp = xhci_readl(xhci, addr + 2); port_offset = XHCI_EXT_PORT_OFF(temp); port_count = XHCI_EXT_PORT_COUNT(temp); - xhci_dbg(xhci, "Ext Cap %p, port offset = %u, " - "count = %u, revision = 0x%x\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Ext Cap %p, port offset = %u, " + "count = %u, revision = 0x%x", addr, port_offset, port_count, major_revision); /* Port count includes the current port offset */ if (port_offset == 0 || (port_offset + port_count - 1) > num_ports) @@ -2076,15 +2014,18 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports, /* Check the host's USB2 LPM capability */ if ((xhci->hci_version == 0x96) && (major_revision != 0x03) && (temp & XHCI_L1C)) { - xhci_dbg(xhci, "xHCI 0.96: support USB2 software lpm\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "xHCI 0.96: support USB2 software lpm"); xhci->sw_lpm_support = 1; } if ((xhci->hci_version >= 0x100) && (major_revision != 0x03)) { - xhci_dbg(xhci, "xHCI 1.0: support USB2 software lpm\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "xHCI 1.0: support USB2 software lpm"); xhci->sw_lpm_support = 1; if (temp & XHCI_HLC) { - xhci_dbg(xhci, "xHCI 1.0: support USB2 hardware lpm\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "xHCI 1.0: support USB2 hardware lpm"); xhci->hw_lpm_support = 1; } } @@ -2208,18 +2149,21 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) xhci_warn(xhci, "No ports on the roothubs?\n"); return -ENODEV; } - xhci_dbg(xhci, "Found %u USB 2.0 ports and %u USB 3.0 ports.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Found %u USB 2.0 ports and %u USB 3.0 ports.", xhci->num_usb2_ports, xhci->num_usb3_ports); /* Place limits on the number of roothub ports so that the hub * descriptors aren't longer than the USB core will allocate. */ if (xhci->num_usb3_ports > 15) { - xhci_dbg(xhci, "Limiting USB 3.0 roothub ports to 15.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Limiting USB 3.0 roothub ports to 15."); xhci->num_usb3_ports = 15; } if (xhci->num_usb2_ports > USB_MAXCHILDREN) { - xhci_dbg(xhci, "Limiting USB 2.0 roothub ports to %u.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Limiting USB 2.0 roothub ports to %u.", USB_MAXCHILDREN); xhci->num_usb2_ports = USB_MAXCHILDREN; } @@ -2244,8 +2188,9 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) xhci->usb2_ports[port_index] = &xhci->op_regs->port_status_base + NUM_PORT_REGS*i; - xhci_dbg(xhci, "USB 2.0 port at index %u, " - "addr = %p\n", i, + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "USB 2.0 port at index %u, " + "addr = %p", i, xhci->usb2_ports[port_index]); port_index++; if (port_index == xhci->num_usb2_ports) @@ -2264,8 +2209,9 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) xhci->usb3_ports[port_index] = &xhci->op_regs->port_status_base + NUM_PORT_REGS*i; - xhci_dbg(xhci, "USB 3.0 port at index %u, " - "addr = %p\n", i, + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "USB 3.0 port at index %u, " + "addr = %p", i, xhci->usb3_ports[port_index]); port_index++; if (port_index == xhci->num_usb3_ports) @@ -2289,32 +2235,35 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) INIT_LIST_HEAD(&xhci->cancel_cmd_list); page_size = xhci_readl(xhci, &xhci->op_regs->page_size); - xhci_dbg(xhci, "Supported page size register = 0x%x\n", page_size); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Supported page size register = 0x%x", page_size); for (i = 0; i < 16; i++) { if ((0x1 & page_size) != 0) break; page_size = page_size >> 1; } if (i < 16) - xhci_dbg(xhci, "Supported page size of %iK\n", (1 << (i+12)) / 1024); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Supported page size of %iK", (1 << (i+12)) / 1024); else xhci_warn(xhci, "WARN: no supported page size\n"); /* Use 4K pages, since that's common and the minimum the HC supports */ xhci->page_shift = 12; xhci->page_size = 1 << xhci->page_shift; - xhci_dbg(xhci, "HCD page size set to %iK\n", xhci->page_size / 1024); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "HCD page size set to %iK", xhci->page_size / 1024); /* * Program the Number of Device Slots Enabled field in the CONFIG * register with the max value of slots the HC can handle. */ val = HCS_MAX_SLOTS(xhci_readl(xhci, &xhci->cap_regs->hcs_params1)); - xhci_dbg(xhci, "// xHC can handle at most %d device slots.\n", - (unsigned int) val); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// xHC can handle at most %d device slots.", val); val2 = xhci_readl(xhci, &xhci->op_regs->config_reg); val |= (val2 & ~HCS_SLOTS_MASK); - xhci_dbg(xhci, "// Setting Max device slots reg = 0x%x.\n", - (unsigned int) val); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Setting Max device slots reg = 0x%x.", val); xhci_writel(xhci, val, &xhci->op_regs->config_reg); /* @@ -2327,7 +2276,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) goto fail; memset(xhci->dcbaa, 0, sizeof *(xhci->dcbaa)); xhci->dcbaa->dma = dma; - xhci_dbg(xhci, "// Device context base array address = 0x%llx (DMA), %p (virt)\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Device context base array address = 0x%llx (DMA), %p (virt)", (unsigned long long)xhci->dcbaa->dma, xhci->dcbaa); xhci_write_64(xhci, dma, &xhci->op_regs->dcbaa_ptr); @@ -2366,8 +2316,9 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, flags); if (!xhci->cmd_ring) goto fail; - xhci_dbg(xhci, "Allocated command ring at %p\n", xhci->cmd_ring); - xhci_dbg(xhci, "First segment DMA is 0x%llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Allocated command ring at %p", xhci->cmd_ring); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "First segment DMA is 0x%llx", (unsigned long long)xhci->cmd_ring->first_seg->dma); /* Set the address in the Command Ring Control register */ @@ -2375,7 +2326,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) val_64 = (val_64 & (u64) CMD_RING_RSVD_BITS) | (xhci->cmd_ring->first_seg->dma & (u64) ~CMD_RING_RSVD_BITS) | xhci->cmd_ring->cycle_state; - xhci_dbg(xhci, "// Setting command ring address to 0x%x\n", val); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Setting command ring address to 0x%x", val); xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring); xhci_dbg_cmd_ptrs(xhci); @@ -2391,8 +2343,9 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) val = xhci_readl(xhci, &xhci->cap_regs->db_off); val &= DBOFF_MASK; - xhci_dbg(xhci, "// Doorbell array is located at offset 0x%x" - " from cap regs base addr\n", val); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Doorbell array is located at offset 0x%x" + " from cap regs base addr", val); xhci->dba = (void __iomem *) xhci->cap_regs + val; xhci_dbg_regs(xhci); xhci_print_run_regs(xhci); @@ -2403,7 +2356,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) * Event ring setup: Allocate a normal ring, but also setup * the event ring segment table (ERST). Section 4.9.3. */ - xhci_dbg(xhci, "// Allocating event ring\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Allocating event ring"); xhci->event_ring = xhci_ring_alloc(xhci, ERST_NUM_SEGS, 1, TYPE_EVENT, flags); if (!xhci->event_ring) @@ -2416,13 +2369,15 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) GFP_KERNEL); if (!xhci->erst.entries) goto fail; - xhci_dbg(xhci, "// Allocated event ring segment table at 0x%llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Allocated event ring segment table at 0x%llx", (unsigned long long)dma); memset(xhci->erst.entries, 0, sizeof(struct xhci_erst_entry)*ERST_NUM_SEGS); xhci->erst.num_entries = ERST_NUM_SEGS; xhci->erst.erst_dma_addr = dma; - xhci_dbg(xhci, "Set ERST to 0; private num segs = %i, virt addr = %p, dma addr = 0x%llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Set ERST to 0; private num segs = %i, virt addr = %p, dma addr = 0x%llx", xhci->erst.num_entries, xhci->erst.entries, (unsigned long long)xhci->erst.erst_dma_addr); @@ -2440,13 +2395,16 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) val = xhci_readl(xhci, &xhci->ir_set->erst_size); val &= ERST_SIZE_MASK; val |= ERST_NUM_SEGS; - xhci_dbg(xhci, "// Write ERST size = %i to ir_set 0 (some bits preserved)\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Write ERST size = %i to ir_set 0 (some bits preserved)", val); xhci_writel(xhci, val, &xhci->ir_set->erst_size); - xhci_dbg(xhci, "// Set ERST entries to point to event ring.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Set ERST entries to point to event ring."); /* set the segment table base address */ - xhci_dbg(xhci, "// Set ERST base address for ir_set 0 = 0x%llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Set ERST base address for ir_set 0 = 0x%llx", (unsigned long long)xhci->erst.erst_dma_addr); val_64 = xhci_read_64(xhci, &xhci->ir_set->erst_base); val_64 &= ERST_PTR_MASK; @@ -2455,7 +2413,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) /* Set the event ring dequeue address */ xhci_set_hc_event_deq(xhci); - xhci_dbg(xhci, "Wrote ERST address to ir_set 0.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Wrote ERST address to ir_set 0."); xhci_print_ir_set(xhci, 0); /* diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index f00cb203faea..c2d495057eb5 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -25,6 +25,7 @@ #include <linux/module.h> #include "xhci.h" +#include "xhci-trace.h" /* Device for a quirk */ #define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73 @@ -64,16 +65,18 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK && pdev->revision == 0x0) { xhci->quirks |= XHCI_RESET_EP_QUIRK; - xhci_dbg(xhci, "QUIRK: Fresco Logic xHC needs configure" - " endpoint cmd after reset endpoint\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "QUIRK: Fresco Logic xHC needs configure" + " endpoint cmd after reset endpoint"); } /* Fresco Logic confirms: all revisions of this chip do not * support MSI, even though some of them claim to in their PCI * capabilities. */ xhci->quirks |= XHCI_BROKEN_MSI; - xhci_dbg(xhci, "QUIRK: Fresco Logic revision %u " - "has broken MSI implementation\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "QUIRK: Fresco Logic revision %u " + "has broken MSI implementation", pdev->revision); xhci->quirks |= XHCI_TRUST_TX_LENGTH; } @@ -110,7 +113,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if (pdev->vendor == PCI_VENDOR_ID_ETRON && pdev->device == PCI_DEVICE_ID_ASROCK_P67) { xhci->quirks |= XHCI_RESET_ON_RESUME; - xhci_dbg(xhci, "QUIRK: Resetting on resume\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "QUIRK: Resetting on resume"); xhci->quirks |= XHCI_TRUST_TX_LENGTH; } if (pdev->vendor == PCI_VENDOR_ID_VIA) @@ -249,13 +253,15 @@ static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated) * writers. * * Unconditionally switch the ports back to xHCI after a system resume. - * We can't tell whether the EHCI or xHCI controller will be resumed - * first, so we have to do the port switchover in both drivers. Writing - * a '1' to the port switchover registers should have no effect if the - * port was already switched over. + * It should not matter whether the EHCI or xHCI controller is + * resumed first. It's enough to do the switchover in xHCI because + * USB core won't notice anything as the hub driver doesn't start + * running again until after all the devices (including both EHCI and + * xHCI host controllers) have been resumed. */ - if (usb_is_intel_switchable_xhci(pdev)) - usb_enable_xhci_ports(pdev); + + if (pdev->vendor == PCI_VENDOR_ID_INTEL) + usb_enable_intel_xhci_ports(pdev); retval = xhci_resume(xhci, hibernated); return retval; diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 51e22bf89505..d9c169f470d3 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -14,6 +14,8 @@ #include <linux/platform_device.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/of.h> +#include <linux/dma-mapping.h> #include "xhci.h" @@ -24,7 +26,7 @@ static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci) * here that the generic code does not try to make a pci_dev from our * dev struct in order to setup MSI */ - xhci->quirks |= XHCI_BROKEN_MSI; + xhci->quirks |= XHCI_PLAT; } /* called during probe() after chip reset completes */ @@ -104,6 +106,15 @@ static int xhci_plat_probe(struct platform_device *pdev) if (!res) return -ENODEV; + /* Initialize dma_mask and coherent_dma_mask to 32-bits */ + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + if (!pdev->dev.dma_mask) + pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; + else + dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) return -ENOMEM; @@ -186,11 +197,46 @@ static int xhci_plat_remove(struct platform_device *dev) return 0; } +#ifdef CONFIG_PM +static int xhci_plat_suspend(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + + return xhci_suspend(xhci); +} + +static int xhci_plat_resume(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + + return xhci_resume(xhci, 0); +} + +static const struct dev_pm_ops xhci_plat_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(xhci_plat_suspend, xhci_plat_resume) +}; +#define DEV_PM_OPS (&xhci_plat_pm_ops) +#else +#define DEV_PM_OPS NULL +#endif /* CONFIG_PM */ + +#ifdef CONFIG_OF +static const struct of_device_id usb_xhci_of_match[] = { + { .compatible = "xhci-platform" }, + { }, +}; +MODULE_DEVICE_TABLE(of, usb_xhci_of_match); +#endif + static struct platform_driver usb_xhci_driver = { .probe = xhci_plat_probe, .remove = xhci_plat_remove, .driver = { .name = "xhci-hcd", + .pm = DEV_PM_OPS, + .of_match_table = of_match_ptr(usb_xhci_of_match), }, }; MODULE_ALIAS("platform:xhci-hcd"); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 5b08cd85f8e7..411da1fc7ae8 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -67,6 +67,7 @@ #include <linux/scatterlist.h> #include <linux/slab.h> #include "xhci.h" +#include "xhci-trace.h" static int handle_cmd_in_cmd_wait_list(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, @@ -555,7 +556,8 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, return; } state->new_cycle_state = 0; - xhci_dbg(xhci, "Finding segment containing stopped TRB.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Finding segment containing stopped TRB."); state->new_deq_seg = find_trb_seg(cur_td->start_seg, dev->eps[ep_index].stopped_trb, &state->new_cycle_state); @@ -565,12 +567,14 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, } /* Dig out the cycle state saved by the xHC during the stop ep cmd */ - xhci_dbg(xhci, "Finding endpoint context\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Finding endpoint context"); ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index); state->new_cycle_state = 0x1 & le64_to_cpu(ep_ctx->deq); state->new_deq_ptr = cur_td->last_trb; - xhci_dbg(xhci, "Finding segment containing last TRB in TD.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Finding segment containing last TRB in TD."); state->new_deq_seg = find_trb_seg(state->new_deq_seg, state->new_deq_ptr, &state->new_cycle_state); @@ -597,13 +601,16 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, if (ep_ring->first_seg == ep_ring->first_seg->next && state->new_deq_ptr < dev->eps[ep_index].stopped_trb) state->new_cycle_state ^= 0x1; - xhci_dbg(xhci, "Cycle state = 0x%x\n", state->new_cycle_state); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Cycle state = 0x%x", state->new_cycle_state); /* Don't update the ring cycle state for the producer (us). */ - xhci_dbg(xhci, "New dequeue segment = %p (virtual)\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "New dequeue segment = %p (virtual)", state->new_deq_seg); addr = xhci_trb_virt_to_dma(state->new_deq_seg, state->new_deq_ptr); - xhci_dbg(xhci, "New dequeue pointer = 0x%llx (DMA)\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "New dequeue pointer = 0x%llx (DMA)", (unsigned long long) addr); } @@ -631,9 +638,11 @@ static void td_to_noop(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, if (flip_cycle) cur_trb->generic.field[3] ^= cpu_to_le32(TRB_CYCLE); - xhci_dbg(xhci, "Cancel (unchain) link TRB\n"); - xhci_dbg(xhci, "Address = %p (0x%llx dma); " - "in seg %p (0x%llx dma)\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Cancel (unchain) link TRB"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Address = %p (0x%llx dma); " + "in seg %p (0x%llx dma)", cur_trb, (unsigned long long)xhci_trb_virt_to_dma(cur_seg, cur_trb), cur_seg, @@ -651,7 +660,8 @@ static void td_to_noop(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, cpu_to_le32(TRB_CYCLE); cur_trb->generic.field[3] |= cpu_to_le32( TRB_TYPE(TRB_TR_NOOP)); - xhci_dbg(xhci, "TRB to noop at offset 0x%llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "TRB to noop at offset 0x%llx", (unsigned long long) xhci_trb_virt_to_dma(cur_seg, cur_trb)); } @@ -672,8 +682,9 @@ void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci, { struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index]; - xhci_dbg(xhci, "Set TR Deq Ptr cmd, new deq seg = %p (0x%llx dma), " - "new deq ptr = %p (0x%llx dma), new cycle = %u\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Set TR Deq Ptr cmd, new deq seg = %p (0x%llx dma), " + "new deq ptr = %p (0x%llx dma), new cycle = %u", deq_state->new_deq_seg, (unsigned long long)deq_state->new_deq_seg->dma, deq_state->new_deq_ptr, @@ -793,7 +804,8 @@ static void handle_stopped_endpoint(struct xhci_hcd *xhci, */ list_for_each(entry, &ep->cancelled_td_list) { cur_td = list_entry(entry, struct xhci_td, cancelled_td_list); - xhci_dbg(xhci, "Removing canceled TD starting at 0x%llx (dma).\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Removing canceled TD starting at 0x%llx (dma).", (unsigned long long)xhci_trb_virt_to_dma( cur_td->start_seg, cur_td->first_trb)); ep_ring = xhci_urb_to_transfer_ring(xhci, cur_td->urb); @@ -913,14 +925,16 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) ep->stop_cmds_pending--; if (xhci->xhc_state & XHCI_STATE_DYING) { - xhci_dbg(xhci, "Stop EP timer ran, but another timer marked " - "xHCI as DYING, exiting.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Stop EP timer ran, but another timer marked " + "xHCI as DYING, exiting."); spin_unlock_irqrestore(&xhci->lock, flags); return; } if (!(ep->stop_cmds_pending == 0 && (ep->ep_state & EP_HALT_PENDING))) { - xhci_dbg(xhci, "Stop EP timer ran, but no command pending, " - "exiting.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Stop EP timer ran, but no command pending, " + "exiting."); spin_unlock_irqrestore(&xhci->lock, flags); return; } @@ -962,8 +976,9 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) ring = temp_ep->ring; if (!ring) continue; - xhci_dbg(xhci, "Killing URBs for slot ID %u, " - "ep index %u\n", i, j); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Killing URBs for slot ID %u, " + "ep index %u", i, j); while (!list_empty(&ring->td_list)) { cur_td = list_first_entry(&ring->td_list, struct xhci_td, @@ -986,9 +1001,11 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) } } spin_unlock_irqrestore(&xhci->lock, flags); - xhci_dbg(xhci, "Calling usb_hc_died()\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Calling usb_hc_died()"); usb_hc_died(xhci_to_hcd(xhci)->primary_hcd); - xhci_dbg(xhci, "xHCI host controller is dead.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "xHCI host controller is dead."); } @@ -1092,7 +1109,8 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci, ep_state &= EP_STATE_MASK; slot_state = le32_to_cpu(slot_ctx->dev_state); slot_state = GET_SLOT_STATE(slot_state); - xhci_dbg(xhci, "Slot state = %u, EP state = %u\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Slot state = %u, EP state = %u", slot_state, ep_state); break; case COMP_EBADSLT: @@ -1112,7 +1130,8 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci, * cancelling URBs, which might not be an error... */ } else { - xhci_dbg(xhci, "Successful Set TR Deq Ptr cmd, deq = @%08llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Successful Set TR Deq Ptr cmd, deq = @%08llx", le64_to_cpu(ep_ctx->deq)); if (xhci_trb_virt_to_dma(dev->eps[ep_index].queued_deq_seg, dev->eps[ep_index].queued_deq_ptr) == @@ -1150,7 +1169,8 @@ static void handle_reset_ep_completion(struct xhci_hcd *xhci, /* This command will only fail if the endpoint wasn't halted, * but we don't care. */ - xhci_dbg(xhci, "Ignoring reset ep completion code of %u\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Ignoring reset ep completion code of %u", GET_COMP_CODE(le32_to_cpu(event->status))); /* HW with the reset endpoint quirk needs to have a configure endpoint @@ -1158,7 +1178,8 @@ static void handle_reset_ep_completion(struct xhci_hcd *xhci, * because the HW can't handle two commands being queued in a row. */ if (xhci->quirks & XHCI_RESET_EP_QUIRK) { - xhci_dbg(xhci, "Queueing configure endpoint command\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Queueing configure endpoint command"); xhci_queue_configure_endpoint(xhci, xhci->devs[slot_id]->in_ctx->dma, slot_id, false); @@ -1377,6 +1398,9 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, return; } + trace_xhci_cmd_completion(&xhci->cmd_ring->dequeue->generic, + (struct xhci_generic_trb *) event); + if ((GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_ABORT) || (GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_STOP)) { /* If the return value is 0, we think the trb pointed by @@ -1444,8 +1468,9 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, ep_state = xhci->devs[slot_id]->eps[ep_index].ep_state; if (!(ep_state & EP_HALTED)) goto bandwidth_change; - xhci_dbg(xhci, "Completed config ep cmd - " - "last ep index = %d, state = %d\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Completed config ep cmd - " + "last ep index = %d, state = %d", ep_index, ep_state); /* Clear internal halted state and restart ring(s) */ xhci->devs[slot_id]->eps[ep_index].ep_state &= @@ -1454,7 +1479,8 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, break; } bandwidth_change: - xhci_dbg(xhci, "Completed config ep cmd\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Completed config ep cmd"); xhci->devs[slot_id]->cmd_status = GET_COMP_CODE(le32_to_cpu(event->status)); complete(&xhci->devs[slot_id]->cmd_completion); @@ -1497,7 +1523,8 @@ bandwidth_change: xhci->error_bitmask |= 1 << 6; break; } - xhci_dbg(xhci, "NEC firmware version %2x.%02x\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "NEC firmware version %2x.%02x", NEC_FW_MAJOR(le32_to_cpu(event->status)), NEC_FW_MINOR(le32_to_cpu(event->status))); break; @@ -2877,8 +2904,8 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, return -ENOMEM; } - xhci_dbg(xhci, "ERROR no room on ep ring, " - "try ring expansion\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_ring_expansion, + "ERROR no room on ep ring, try ring expansion"); num_trbs_needed = num_trbs - ep_ring->num_trbs_free; if (xhci_ring_expansion(xhci, ep_ring, num_trbs_needed, mem_flags)) { @@ -3060,14 +3087,10 @@ int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, * to set the polling interval (once the API is added). */ if (xhci_interval != ep_interval) { - if (printk_ratelimit()) - dev_dbg(&urb->dev->dev, "Driver uses different interval" - " (%d microframe%s) than xHCI " - "(%d microframe%s)\n", - ep_interval, - ep_interval == 1 ? "" : "s", - xhci_interval, - xhci_interval == 1 ? "" : "s"); + dev_dbg_ratelimited(&urb->dev->dev, + "Driver uses different interval (%d microframe%s) than xHCI (%d microframe%s)\n", + ep_interval, ep_interval == 1 ? "" : "s", + xhci_interval, xhci_interval == 1 ? "" : "s"); urb->interval = xhci_interval; /* Convert back to frames for LS/FS devices */ if (urb->dev->speed == USB_SPEED_LOW || @@ -3849,14 +3872,10 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, * to set the polling interval (once the API is added). */ if (xhci_interval != ep_interval) { - if (printk_ratelimit()) - dev_dbg(&urb->dev->dev, "Driver uses different interval" - " (%d microframe%s) than xHCI " - "(%d microframe%s)\n", - ep_interval, - ep_interval == 1 ? "" : "s", - xhci_interval, - xhci_interval == 1 ? "" : "s"); + dev_dbg_ratelimited(&urb->dev->dev, + "Driver uses different interval (%d microframe%s) than xHCI (%d microframe%s)\n", + ep_interval, ep_interval == 1 ? "" : "s", + xhci_interval, xhci_interval == 1 ? "" : "s"); urb->interval = xhci_interval; /* Convert back to frames for LS/FS devices */ if (urb->dev->speed == USB_SPEED_LOW || diff --git a/drivers/usb/host/xhci-trace.c b/drivers/usb/host/xhci-trace.c new file mode 100644 index 000000000000..7cf30c83dcf3 --- /dev/null +++ b/drivers/usb/host/xhci-trace.c @@ -0,0 +1,15 @@ +/* + * xHCI host controller driver + * + * Copyright (C) 2013 Xenia Ragiadakou + * + * Author: Xenia Ragiadakou + * Email : burzalodowa@gmail.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#define CREATE_TRACE_POINTS +#include "xhci-trace.h" diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h new file mode 100644 index 000000000000..20364cc8d2fb --- /dev/null +++ b/drivers/usb/host/xhci-trace.h @@ -0,0 +1,151 @@ +/* + * xHCI host controller driver + * + * Copyright (C) 2013 Xenia Ragiadakou + * + * Author: Xenia Ragiadakou + * Email : burzalodowa@gmail.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM xhci-hcd + +#if !defined(__XHCI_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#define __XHCI_TRACE_H + +#include <linux/tracepoint.h> +#include "xhci.h" + +#define XHCI_MSG_MAX 500 + +DECLARE_EVENT_CLASS(xhci_log_msg, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf), + TP_STRUCT__entry(__dynamic_array(char, msg, XHCI_MSG_MAX)), + TP_fast_assign( + vsnprintf(__get_str(msg), XHCI_MSG_MAX, vaf->fmt, *vaf->va); + ), + TP_printk("%s", __get_str(msg)) +); + +DEFINE_EVENT(xhci_log_msg, xhci_dbg_address, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); + +DEFINE_EVENT(xhci_log_msg, xhci_dbg_context_change, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); + +DEFINE_EVENT(xhci_log_msg, xhci_dbg_quirks, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); + +DEFINE_EVENT(xhci_log_msg, xhci_dbg_reset_ep, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); + +DEFINE_EVENT(xhci_log_msg, xhci_dbg_cancel_urb, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); + +DEFINE_EVENT(xhci_log_msg, xhci_dbg_init, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); + +DEFINE_EVENT(xhci_log_msg, xhci_dbg_ring_expansion, + TP_PROTO(struct va_format *vaf), + TP_ARGS(vaf) +); + +DECLARE_EVENT_CLASS(xhci_log_ctx, + TP_PROTO(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, + unsigned int ep_num), + TP_ARGS(xhci, ctx, ep_num), + TP_STRUCT__entry( + __field(int, ctx_64) + __field(unsigned, ctx_type) + __field(dma_addr_t, ctx_dma) + __field(u8 *, ctx_va) + __field(unsigned, ctx_ep_num) + __field(int, slot_id) + __dynamic_array(u32, ctx_data, + ((HCC_64BYTE_CONTEXT(xhci->hcc_params) + 1) * 8) * + ((ctx->type == XHCI_CTX_TYPE_INPUT) + ep_num + 1)) + ), + TP_fast_assign( + struct usb_device *udev; + + udev = to_usb_device(xhci_to_hcd(xhci)->self.controller); + __entry->ctx_64 = HCC_64BYTE_CONTEXT(xhci->hcc_params); + __entry->ctx_type = ctx->type; + __entry->ctx_dma = ctx->dma; + __entry->ctx_va = ctx->bytes; + __entry->slot_id = udev->slot_id; + __entry->ctx_ep_num = ep_num; + memcpy(__get_dynamic_array(ctx_data), ctx->bytes, + ((HCC_64BYTE_CONTEXT(xhci->hcc_params) + 1) * 32) * + ((ctx->type == XHCI_CTX_TYPE_INPUT) + ep_num + 1)); + ), + TP_printk("\nctx_64=%d, ctx_type=%u, ctx_dma=@%llx, ctx_va=@%p", + __entry->ctx_64, __entry->ctx_type, + (unsigned long long) __entry->ctx_dma, __entry->ctx_va + ) +); + +DEFINE_EVENT(xhci_log_ctx, xhci_address_ctx, + TP_PROTO(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, + unsigned int ep_num), + TP_ARGS(xhci, ctx, ep_num) +); + +DECLARE_EVENT_CLASS(xhci_log_event, + TP_PROTO(void *trb_va, struct xhci_generic_trb *ev), + TP_ARGS(trb_va, ev), + TP_STRUCT__entry( + __field(void *, va) + __field(u64, dma) + __field(u32, status) + __field(u32, flags) + __dynamic_array(__le32, trb, 4) + ), + TP_fast_assign( + __entry->va = trb_va; + __entry->dma = le64_to_cpu(((u64)ev->field[1]) << 32 | + ev->field[0]); + __entry->status = le32_to_cpu(ev->field[2]); + __entry->flags = le32_to_cpu(ev->field[3]); + memcpy(__get_dynamic_array(trb), trb_va, + sizeof(struct xhci_generic_trb)); + ), + TP_printk("\ntrb_dma=@%llx, trb_va=@%p, status=%08x, flags=%08x", + (unsigned long long) __entry->dma, __entry->va, + __entry->status, __entry->flags + ) +); + +DEFINE_EVENT(xhci_log_event, xhci_cmd_completion, + TP_PROTO(void *trb_va, struct xhci_generic_trb *ev), + TP_ARGS(trb_va, ev) +); + +#endif /* __XHCI_TRACE_H */ + +/* this part must be outside header guard */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE xhci-trace + +#include <trace/define_trace.h> diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 9478caa2f71f..49b6edb84a79 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -30,6 +30,7 @@ #include <linux/dma-mapping.h> #include "xhci.h" +#include "xhci-trace.h" #define DRIVER_AUTHOR "Sarah Sharp" #define DRIVER_DESC "'eXtensible' Host Controller (xHC) Driver" @@ -101,7 +102,7 @@ void xhci_quiesce(struct xhci_hcd *xhci) int xhci_halt(struct xhci_hcd *xhci) { int ret; - xhci_dbg(xhci, "// Halt the HC\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Halt the HC"); xhci_quiesce(xhci); ret = xhci_handshake(xhci, &xhci->op_regs->status, @@ -125,7 +126,7 @@ static int xhci_start(struct xhci_hcd *xhci) temp = xhci_readl(xhci, &xhci->op_regs->command); temp |= (CMD_RUN); - xhci_dbg(xhci, "// Turn on HC, cmd = 0x%x.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Turn on HC, cmd = 0x%x.", temp); xhci_writel(xhci, temp, &xhci->op_regs->command); @@ -163,7 +164,7 @@ int xhci_reset(struct xhci_hcd *xhci) return 0; } - xhci_dbg(xhci, "// Reset the HC\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Reset the HC"); command = xhci_readl(xhci, &xhci->op_regs->command); command |= CMD_RESET; xhci_writel(xhci, command, &xhci->op_regs->command); @@ -173,7 +174,8 @@ int xhci_reset(struct xhci_hcd *xhci) if (ret) return ret; - xhci_dbg(xhci, "Wait for controller to be ready for doorbell rings\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Wait for controller to be ready for doorbell rings"); /* * xHCI cannot write to any doorbells or operational registers other * than status until the "Controller Not Ready" flag is cleared. @@ -215,14 +217,16 @@ static int xhci_setup_msi(struct xhci_hcd *xhci) ret = pci_enable_msi(pdev); if (ret) { - xhci_dbg(xhci, "failed to allocate MSI entry\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "failed to allocate MSI entry"); return ret; } ret = request_irq(pdev->irq, xhci_msi_irq, 0, "xhci_hcd", xhci_to_hcd(xhci)); if (ret) { - xhci_dbg(xhci, "disable MSI interrupt\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "disable MSI interrupt"); pci_disable_msi(pdev); } @@ -285,7 +289,8 @@ static int xhci_setup_msix(struct xhci_hcd *xhci) ret = pci_enable_msix(pdev, xhci->msix_entries, xhci->msix_count); if (ret) { - xhci_dbg(xhci, "Failed to enable MSI-X\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Failed to enable MSI-X"); goto free_entries; } @@ -301,7 +306,7 @@ static int xhci_setup_msix(struct xhci_hcd *xhci) return ret; disable_msix: - xhci_dbg(xhci, "disable MSI-X interrupt\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "disable MSI-X interrupt"); xhci_free_irq(xhci); pci_disable_msix(pdev); free_entries: @@ -343,9 +348,14 @@ static void __maybe_unused xhci_msix_sync_irqs(struct xhci_hcd *xhci) static int xhci_try_enable_msi(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); - struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); + struct pci_dev *pdev; int ret; + /* The xhci platform device has set up IRQs through usb_add_hcd. */ + if (xhci->quirks & XHCI_PLAT) + return 0; + + pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); /* * Some Fresco Logic host controllers advertise MSI, but fail to * generate interrupts. Don't even try to enable MSI. @@ -418,9 +428,11 @@ static void compliance_mode_recovery(unsigned long arg) * Compliance Mode Detected. Letting USB Core * handle the Warm Reset */ - xhci_dbg(xhci, "Compliance mode detected->port %d\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Compliance mode detected->port %d", i + 1); - xhci_dbg(xhci, "Attempting compliance mode recovery\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Attempting compliance mode recovery"); hcd = xhci->shared_hcd; if (hcd->state == HC_STATE_SUSPENDED) @@ -458,7 +470,8 @@ static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci) set_timer_slack(&xhci->comp_mode_recovery_timer, msecs_to_jiffies(COMP_MODE_RCVRY_MSECS)); add_timer(&xhci->comp_mode_recovery_timer); - xhci_dbg(xhci, "Compliance mode recovery timer initialized\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Compliance mode recovery timer initialized"); } /* @@ -506,16 +519,18 @@ int xhci_init(struct usb_hcd *hcd) struct xhci_hcd *xhci = hcd_to_xhci(hcd); int retval = 0; - xhci_dbg(xhci, "xhci_init\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_init"); spin_lock_init(&xhci->lock); if (xhci->hci_version == 0x95 && link_quirk) { - xhci_dbg(xhci, "QUIRK: Not clearing Link TRB chain bits.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "QUIRK: Not clearing Link TRB chain bits."); xhci->quirks |= XHCI_LINK_TRB_QUIRK; } else { - xhci_dbg(xhci, "xHCI doesn't need link TRB QUIRK\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "xHCI doesn't need link TRB QUIRK"); } retval = xhci_mem_init(xhci, GFP_KERNEL); - xhci_dbg(xhci, "Finished xhci_init\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Finished xhci_init"); /* Initializing Compliance Mode Recovery Data If Needed */ if (xhci_compliance_mode_recovery_timer_quirk_check()) { @@ -529,57 +544,6 @@ int xhci_init(struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -static void xhci_event_ring_work(unsigned long arg) -{ - unsigned long flags; - int temp; - u64 temp_64; - struct xhci_hcd *xhci = (struct xhci_hcd *) arg; - int i, j; - - xhci_dbg(xhci, "Poll event ring: %lu\n", jiffies); - - spin_lock_irqsave(&xhci->lock, flags); - temp = xhci_readl(xhci, &xhci->op_regs->status); - xhci_dbg(xhci, "op reg status = 0x%x\n", temp); - if (temp == 0xffffffff || (xhci->xhc_state & XHCI_STATE_DYING) || - (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_dbg(xhci, "HW died, polling stopped.\n"); - spin_unlock_irqrestore(&xhci->lock, flags); - return; - } - - temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); - xhci_dbg(xhci, "ir_set 0 pending = 0x%x\n", temp); - xhci_dbg(xhci, "HC error bitmask = 0x%x\n", xhci->error_bitmask); - xhci->error_bitmask = 0; - xhci_dbg(xhci, "Event ring:\n"); - xhci_debug_segment(xhci, xhci->event_ring->deq_seg); - xhci_dbg_ring_ptrs(xhci, xhci->event_ring); - temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); - temp_64 &= ~ERST_PTR_MASK; - xhci_dbg(xhci, "ERST deq = 64'h%0lx\n", (long unsigned int) temp_64); - xhci_dbg(xhci, "Command ring:\n"); - xhci_debug_segment(xhci, xhci->cmd_ring->deq_seg); - xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring); - xhci_dbg_cmd_ptrs(xhci); - for (i = 0; i < MAX_HC_SLOTS; ++i) { - if (!xhci->devs[i]) - continue; - for (j = 0; j < 31; ++j) { - xhci_dbg_ep_rings(xhci, i, j, &xhci->devs[i]->eps[j]); - } - } - spin_unlock_irqrestore(&xhci->lock, flags); - - if (!xhci->zombie) - mod_timer(&xhci->event_ring_timer, jiffies + POLL_TIMEOUT * HZ); - else - xhci_dbg(xhci, "Quit polling the event ring.\n"); -} -#endif - static int xhci_run_finished(struct xhci_hcd *xhci) { if (xhci_start(xhci)) { @@ -592,7 +556,8 @@ static int xhci_run_finished(struct xhci_hcd *xhci) if (xhci->quirks & XHCI_NEC_HOST) xhci_ring_cmd_db(xhci); - xhci_dbg(xhci, "Finished xhci_run for USB3 roothub\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Finished xhci_run for USB3 roothub"); return 0; } @@ -623,23 +588,12 @@ int xhci_run(struct usb_hcd *hcd) if (!usb_hcd_is_primary_hcd(hcd)) return xhci_run_finished(xhci); - xhci_dbg(xhci, "xhci_run\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_run"); ret = xhci_try_enable_msi(hcd); if (ret) return ret; -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING - init_timer(&xhci->event_ring_timer); - xhci->event_ring_timer.data = (unsigned long) xhci; - xhci->event_ring_timer.function = xhci_event_ring_work; - /* Poll the event ring */ - xhci->event_ring_timer.expires = jiffies + POLL_TIMEOUT * HZ; - xhci->zombie = 0; - xhci_dbg(xhci, "Setting event ring polling timer\n"); - add_timer(&xhci->event_ring_timer); -#endif - xhci_dbg(xhci, "Command ring memory map follows:\n"); xhci_debug_ring(xhci, xhci->cmd_ring); xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring); @@ -652,9 +606,11 @@ int xhci_run(struct usb_hcd *hcd) xhci_dbg_ring_ptrs(xhci, xhci->event_ring); temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); temp_64 &= ~ERST_PTR_MASK; - xhci_dbg(xhci, "ERST deq = 64'h%0lx\n", (long unsigned int) temp_64); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "ERST deq = 64'h%0lx", (long unsigned int) temp_64); - xhci_dbg(xhci, "// Set the interrupt modulation register\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Set the interrupt modulation register"); temp = xhci_readl(xhci, &xhci->ir_set->irq_control); temp &= ~ER_IRQ_INTERVAL_MASK; temp |= (u32) 160; @@ -663,12 +619,13 @@ int xhci_run(struct usb_hcd *hcd) /* Set the HCD state before we enable the irqs */ temp = xhci_readl(xhci, &xhci->op_regs->command); temp |= (CMD_EIE); - xhci_dbg(xhci, "// Enable interrupts, cmd = 0x%x.\n", - temp); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Enable interrupts, cmd = 0x%x.", temp); xhci_writel(xhci, temp, &xhci->op_regs->command); temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); - xhci_dbg(xhci, "// Enabling event ring interrupter %p by writing 0x%x to irq_pending\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Enabling event ring interrupter %p by writing 0x%x to irq_pending", xhci->ir_set, (unsigned int) ER_IRQ_ENABLE(temp)); xhci_writel(xhci, ER_IRQ_ENABLE(temp), &xhci->ir_set->irq_pending); @@ -678,7 +635,8 @@ int xhci_run(struct usb_hcd *hcd) xhci_queue_vendor_command(xhci, 0, 0, 0, TRB_TYPE(TRB_NEC_GET_FW)); - xhci_dbg(xhci, "Finished xhci_run for USB2 roothub\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "Finished xhci_run for USB2 roothub"); return 0; } @@ -726,24 +684,20 @@ void xhci_stop(struct usb_hcd *hcd) xhci_cleanup_msix(xhci); -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING - /* Tell the event ring poll function not to reschedule */ - xhci->zombie = 1; - del_timer_sync(&xhci->event_ring_timer); -#endif - /* Deleting Compliance Mode Recovery Timer */ if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && (!(xhci_all_ports_seen_u0(xhci)))) { del_timer_sync(&xhci->comp_mode_recovery_timer); - xhci_dbg(xhci, "%s: compliance mode recovery timer deleted\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "%s: compliance mode recovery timer deleted", __func__); } if (xhci->quirks & XHCI_AMD_PLL_FIX) usb_amd_dev_put(); - xhci_dbg(xhci, "// Disabling event ring interrupts\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Disabling event ring interrupts"); temp = xhci_readl(xhci, &xhci->op_regs->status); xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status); temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); @@ -751,10 +705,11 @@ void xhci_stop(struct usb_hcd *hcd) &xhci->ir_set->irq_pending); xhci_print_ir_set(xhci, 0); - xhci_dbg(xhci, "cleaning up memory\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, "cleaning up memory"); xhci_mem_cleanup(xhci); - xhci_dbg(xhci, "xhci_stop completed - status = %x\n", - xhci_readl(xhci, &xhci->op_regs->status)); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "xhci_stop completed - status = %x", + xhci_readl(xhci, &xhci->op_regs->status)); } /* @@ -779,8 +734,9 @@ void xhci_shutdown(struct usb_hcd *hcd) xhci_cleanup_msix(xhci); - xhci_dbg(xhci, "xhci_shutdown completed - status = %x\n", - xhci_readl(xhci, &xhci->op_regs->status)); + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "xhci_shutdown completed - status = %x", + xhci_readl(xhci, &xhci->op_regs->status)); } #ifdef CONFIG_PM @@ -821,7 +777,8 @@ static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci) xhci->cmd_ring->dequeue) & (u64) ~CMD_RING_RSVD_BITS) | xhci->cmd_ring->cycle_state; - xhci_dbg(xhci, "// Setting command ring address to 0x%llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_init, + "// Setting command ring address to 0x%llx", (long unsigned long) val_64); xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring); } @@ -934,7 +891,8 @@ int xhci_suspend(struct xhci_hcd *xhci) if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && (!(xhci_all_ports_seen_u0(xhci)))) { del_timer_sync(&xhci->comp_mode_recovery_timer); - xhci_dbg(xhci, "%s: compliance mode recovery timer deleted\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "%s: compliance mode recovery timer deleted", __func__); } @@ -999,7 +957,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !(xhci_all_ports_seen_u0(xhci))) { del_timer_sync(&xhci->comp_mode_recovery_timer); - xhci_dbg(xhci, "Compliance Mode Recovery Timer deleted!\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Compliance Mode Recovery Timer deleted!"); } /* Let the USB core know _both_ roothubs lost power. */ @@ -1012,12 +971,6 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) spin_unlock_irq(&xhci->lock); xhci_cleanup_msix(xhci); -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING - /* Tell the event ring poll function not to reschedule */ - xhci->zombie = 1; - del_timer_sync(&xhci->event_ring_timer); -#endif - xhci_dbg(xhci, "// Disabling event ring interrupts\n"); temp = xhci_readl(xhci, &xhci->op_regs->status); xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status); @@ -1171,27 +1124,25 @@ static int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev, struct xhci_virt_device *virt_dev; if (!hcd || (check_ep && !ep) || !udev) { - printk(KERN_DEBUG "xHCI %s called with invalid args\n", - func); + pr_debug("xHCI %s called with invalid args\n", func); return -EINVAL; } if (!udev->parent) { - printk(KERN_DEBUG "xHCI %s called for root hub\n", - func); + pr_debug("xHCI %s called for root hub\n", func); return 0; } xhci = hcd_to_xhci(hcd); if (check_virt_dev) { if (!udev->slot_id || !xhci->devs[udev->slot_id]) { - printk(KERN_DEBUG "xHCI %s called with unaddressed " - "device\n", func); + xhci_dbg(xhci, "xHCI %s called with unaddressed device\n", + func); return -EINVAL; } virt_dev = xhci->devs[udev->slot_id]; if (virt_dev->udev != udev) { - printk(KERN_DEBUG "xHCI %s called with udev and " + xhci_dbg(xhci, "xHCI %s called with udev and " "virt_dev does not match\n", func); return -EINVAL; } @@ -1229,12 +1180,16 @@ static int xhci_check_maxpacket(struct xhci_hcd *xhci, unsigned int slot_id, hw_max_packet_size = MAX_PACKET_DECODED(le32_to_cpu(ep_ctx->ep_info2)); max_packet_size = usb_endpoint_maxp(&urb->dev->ep0.desc); if (hw_max_packet_size != max_packet_size) { - xhci_dbg(xhci, "Max Packet Size for ep 0 changed.\n"); - xhci_dbg(xhci, "Max packet size in usb_device = %d\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Max Packet Size for ep 0 changed."); + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Max packet size in usb_device = %d", max_packet_size); - xhci_dbg(xhci, "Max packet size in xHCI HW = %d\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Max packet size in xHCI HW = %d", hw_max_packet_size); - xhci_dbg(xhci, "Issuing evaluate context command.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Issuing evaluate context command."); /* Set up the input context flags for the command */ /* FIXME: This won't work if a non-default control endpoint @@ -1499,7 +1454,8 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) goto done; temp = xhci_readl(xhci, &xhci->op_regs->status); if (temp == 0xffffffff || (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_dbg(xhci, "HW died, freeing TD.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "HW died, freeing TD."); urb_priv = urb->hcpriv; for (i = urb_priv->td_cnt; i < urb_priv->length; i++) { td = urb_priv->td[i]; @@ -1517,8 +1473,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) } if ((xhci->xhc_state & XHCI_STATE_DYING) || (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_dbg(xhci, "Ep 0x%x: URB %p to be canceled on " - "non-responsive xHCI host.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Ep 0x%x: URB %p to be canceled on " + "non-responsive xHCI host.", urb->ep->desc.bEndpointAddress, urb); /* Let the stop endpoint command watchdog timer (which set this * state) finish cleaning up the endpoint TD lists. We must @@ -1539,8 +1496,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) urb_priv = urb->hcpriv; i = urb_priv->td_cnt; if (i < urb_priv->length) - xhci_dbg(xhci, "Cancel URB %p, dev %s, ep 0x%x, " - "starting at offset 0x%llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, + "Cancel URB %p, dev %s, ep 0x%x, " + "starting at offset 0x%llx", urb, urb->dev->devpath, urb->ep->desc.bEndpointAddress, (unsigned long long) xhci_trb_virt_to_dma( @@ -1852,7 +1810,8 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci, ret = -ENODEV; break; case COMP_SUCCESS: - dev_dbg(&udev->dev, "Successful Endpoint Configure command\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Successful Endpoint Configure command"); ret = 0; break; default: @@ -1898,7 +1857,8 @@ static int xhci_evaluate_context_result(struct xhci_hcd *xhci, ret = -EINVAL; break; case COMP_SUCCESS: - dev_dbg(&udev->dev, "Successful evaluate context command\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Successful evaluate context command"); ret = 0; break; default: @@ -1964,14 +1924,16 @@ static int xhci_reserve_host_resources(struct xhci_hcd *xhci, added_eps = xhci_count_num_new_endpoints(xhci, ctrl_ctx); if (xhci->num_active_eps + added_eps > xhci->limit_active_eps) { - xhci_dbg(xhci, "Not enough ep ctxs: " - "%u active, need to add %u, limit is %u.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Not enough ep ctxs: " + "%u active, need to add %u, limit is %u.", xhci->num_active_eps, added_eps, xhci->limit_active_eps); return -ENOMEM; } xhci->num_active_eps += added_eps; - xhci_dbg(xhci, "Adding %u ep ctxs, %u now active.\n", added_eps, + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Adding %u ep ctxs, %u now active.", added_eps, xhci->num_active_eps); return 0; } @@ -1989,7 +1951,8 @@ static void xhci_free_host_resources(struct xhci_hcd *xhci, num_failed_eps = xhci_count_num_new_endpoints(xhci, ctrl_ctx); xhci->num_active_eps -= num_failed_eps; - xhci_dbg(xhci, "Removing %u failed ep ctxs, %u now active.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Removing %u failed ep ctxs, %u now active.", num_failed_eps, xhci->num_active_eps); } @@ -2008,7 +1971,8 @@ static void xhci_finish_resource_reservation(struct xhci_hcd *xhci, num_dropped_eps = xhci_count_num_dropped_endpoints(xhci, ctrl_ctx); xhci->num_active_eps -= num_dropped_eps; if (num_dropped_eps) - xhci_dbg(xhci, "Removing %u dropped ep ctxs, %u now active.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Removing %u dropped ep ctxs, %u now active.", num_dropped_eps, xhci->num_active_eps); } @@ -2169,18 +2133,21 @@ static int xhci_check_bw_table(struct xhci_hcd *xhci, * that the HS bus has enough bandwidth if we are activing a new TT. */ if (virt_dev->tt_info) { - xhci_dbg(xhci, "Recalculating BW for rootport %u\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Recalculating BW for rootport %u", virt_dev->real_port); if (xhci_check_tt_bw_table(xhci, virt_dev, old_active_eps)) { xhci_warn(xhci, "Not enough bandwidth on HS bus for " "newly activated TT.\n"); return -ENOMEM; } - xhci_dbg(xhci, "Recalculating BW for TT slot %u port %u\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Recalculating BW for TT slot %u port %u", virt_dev->tt_info->slot_id, virt_dev->tt_info->ttport); } else { - xhci_dbg(xhci, "Recalculating BW for rootport %u\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Recalculating BW for rootport %u", virt_dev->real_port); } @@ -2288,8 +2255,9 @@ static int xhci_check_bw_table(struct xhci_hcd *xhci, xhci->rh_bw[port_index].num_active_tts; } - xhci_dbg(xhci, "Final bandwidth: %u, Limit: %u, Reserved: %u, " - "Available: %u " "percent\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Final bandwidth: %u, Limit: %u, Reserved: %u, " + "Available: %u " "percent", bw_used, max_bandwidth, bw_reserved, (max_bandwidth - bw_used - bw_reserved) * 100 / max_bandwidth); @@ -2659,7 +2627,8 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci, if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK)) xhci_free_host_resources(xhci, ctrl_ctx); spin_unlock_irqrestore(&xhci->lock, flags); - xhci_dbg(xhci, "FIXME allocate a new ring segment\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "FIXME allocate a new ring segment"); return -ENOMEM; } xhci_ring_cmd_db(xhci); @@ -2872,7 +2841,8 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, struct xhci_dequeue_state deq_state; struct xhci_virt_ep *ep; - xhci_dbg(xhci, "Cleaning up stalled endpoint ring\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Cleaning up stalled endpoint ring"); ep = &xhci->devs[udev->slot_id]->eps[ep_index]; /* We need to move the HW's dequeue pointer past this TD, * or it will attempt to resend it on the next doorbell ring. @@ -2885,7 +2855,8 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, * issue a configure endpoint command later. */ if (!(xhci->quirks & XHCI_RESET_EP_QUIRK)) { - xhci_dbg(xhci, "Queueing new dequeue state\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Queueing new dequeue state"); xhci_queue_new_dequeue_state(xhci, udev->slot_id, ep_index, ep->stopped_stream, &deq_state); } else { @@ -2894,8 +2865,9 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, * XXX: No idea how this hardware will react when stream rings * are enabled. */ - xhci_dbg(xhci, "Setting up input context for " - "configure endpoint command\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Setting up input context for " + "configure endpoint command"); xhci_setup_input_ctx_for_quirk(xhci, udev->slot_id, ep_index, &deq_state); } @@ -2927,16 +2899,19 @@ void xhci_endpoint_reset(struct usb_hcd *hcd, ep_index = xhci_get_endpoint_index(&ep->desc); virt_ep = &xhci->devs[udev->slot_id]->eps[ep_index]; if (!virt_ep->stopped_td) { - xhci_dbg(xhci, "Endpoint 0x%x not halted, refusing to reset.\n", - ep->desc.bEndpointAddress); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Endpoint 0x%x not halted, refusing to reset.", + ep->desc.bEndpointAddress); return; } if (usb_endpoint_xfer_control(&ep->desc)) { - xhci_dbg(xhci, "Control endpoint stall already handled.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Control endpoint stall already handled."); return; } - xhci_dbg(xhci, "Queueing reset endpoint command\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, + "Queueing reset endpoint command"); spin_lock_irqsave(&xhci->lock, flags); ret = xhci_queue_reset_ep(xhci, udev->slot_id, ep_index); /* @@ -3076,8 +3051,8 @@ static u32 xhci_calculate_no_streams_bitmask(struct xhci_hcd *xhci, /* Are streams already being freed for the endpoint? */ if (ep_state & EP_GETTING_NO_STREAMS) { xhci_warn(xhci, "WARN Can't disable streams for " - "endpoint 0x%x\n, " - "streams are being disabled already.", + "endpoint 0x%x, " + "streams are being disabled already\n", eps[i]->desc.bEndpointAddress); return 0; } @@ -3085,8 +3060,8 @@ static u32 xhci_calculate_no_streams_bitmask(struct xhci_hcd *xhci, if (!(ep_state & EP_HAS_STREAMS) && !(ep_state & EP_GETTING_STREAMS)) { xhci_warn(xhci, "WARN Can't disable streams for " - "endpoint 0x%x\n, " - "streams are already disabled!", + "endpoint 0x%x, " + "streams are already disabled!\n", eps[i]->desc.bEndpointAddress); xhci_warn(xhci, "WARN xhci_free_streams() called " "with non-streams endpoint\n"); @@ -3374,8 +3349,9 @@ void xhci_free_device_endpoint_resources(struct xhci_hcd *xhci, } xhci->num_active_eps -= num_dropped_eps; if (num_dropped_eps) - xhci_dbg(xhci, "Dropped %u ep ctxs, flags = 0x%x, " - "%u now active.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Dropped %u ep ctxs, flags = 0x%x, " + "%u now active.", num_dropped_eps, drop_flags, xhci->num_active_eps); } @@ -3509,10 +3485,10 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) switch (ret) { case COMP_EBADSLT: /* 0.95 completion code for bad slot ID */ case COMP_CTX_STATE: /* 0.96 completion code for same thing */ - xhci_info(xhci, "Can't reset device (slot ID %u) in %s state\n", + xhci_dbg(xhci, "Can't reset device (slot ID %u) in %s state\n", slot_id, xhci_get_slot_state(xhci, virt_dev->out_ctx)); - xhci_info(xhci, "Not freeing device rings.\n"); + xhci_dbg(xhci, "Not freeing device rings.\n"); /* Don't treat this as an error. May change my mind later. */ ret = 0; goto command_cleanup; @@ -3585,6 +3561,16 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) u32 state; int i, ret; +#ifndef CONFIG_USB_DEFAULT_PERSIST + /* + * We called pm_runtime_get_noresume when the device was attached. + * Decrement the counter here to allow controller to runtime suspend + * if no devices remain. + */ + if (xhci->quirks & XHCI_RESET_ON_RESUME) + pm_runtime_put_noidle(hcd->self.controller); +#endif + ret = xhci_check_args(hcd, udev, NULL, 0, true, __func__); /* If the host is halted due to driver unload, we still need to free the * device. @@ -3637,13 +3623,15 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) static int xhci_reserve_host_control_ep_resources(struct xhci_hcd *xhci) { if (xhci->num_active_eps + 1 > xhci->limit_active_eps) { - xhci_dbg(xhci, "Not enough ep ctxs: " - "%u active, need to add 1, limit is %u.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Not enough ep ctxs: " + "%u active, need to add 1, limit is %u.", xhci->num_active_eps, xhci->limit_active_eps); return -ENOMEM; } xhci->num_active_eps += 1; - xhci_dbg(xhci, "Adding 1 ep ctx, %u now active.\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Adding 1 ep ctx, %u now active.", xhci->num_active_eps); return 0; } @@ -3708,6 +3696,16 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev) goto disable_slot; } udev->slot_id = xhci->slot_id; + +#ifndef CONFIG_USB_DEFAULT_PERSIST + /* + * If resetting upon resume, we can't put the controller into runtime + * suspend if there is a device attached. + */ + if (xhci->quirks & XHCI_RESET_ON_RESUME) + pm_runtime_get_noresume(hcd->self.controller); +#endif + /* Is this a LS or FS device under a HS hub? */ /* Hub or peripherial? */ return 1; @@ -3743,7 +3741,8 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) union xhci_trb *cmd_trb; if (!udev->slot_id) { - xhci_dbg(xhci, "Bad Slot ID %d\n", udev->slot_id); + xhci_dbg_trace(xhci, trace_xhci_dbg_address, + "Bad Slot ID %d", udev->slot_id); return -EINVAL; } @@ -3782,6 +3781,8 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) xhci_dbg(xhci, "Slot ID %d Input Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2); + trace_xhci_address_ctx(xhci, virt_dev->in_ctx, + slot_ctx->dev_info >> 27); spin_lock_irqsave(&xhci->lock, flags); cmd_trb = xhci->cmd_ring->dequeue; @@ -3789,7 +3790,8 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) udev->slot_id); if (ret) { spin_unlock_irqrestore(&xhci->lock, flags); - xhci_dbg(xhci, "FIXME: allocate a command ring segment\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_address, + "FIXME: allocate a command ring segment"); return ret; } xhci_ring_cmd_db(xhci); @@ -3829,13 +3831,15 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) ret = -ENODEV; break; case COMP_SUCCESS: - xhci_dbg(xhci, "Successful Address Device command\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_address, + "Successful Address Device command"); break; default: xhci_err(xhci, "ERROR: unexpected command completion " "code 0x%x.\n", virt_dev->cmd_status); xhci_dbg(xhci, "Slot ID %d Output Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->out_ctx, 2); + trace_xhci_address_ctx(xhci, virt_dev->out_ctx, 1); ret = -EINVAL; break; } @@ -3843,16 +3847,21 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) return ret; } temp_64 = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); - xhci_dbg(xhci, "Op regs DCBAA ptr = %#016llx\n", temp_64); - xhci_dbg(xhci, "Slot ID %d dcbaa entry @%p = %#016llx\n", - udev->slot_id, - &xhci->dcbaa->dev_context_ptrs[udev->slot_id], - (unsigned long long) - le64_to_cpu(xhci->dcbaa->dev_context_ptrs[udev->slot_id])); - xhci_dbg(xhci, "Output Context DMA address = %#08llx\n", + xhci_dbg_trace(xhci, trace_xhci_dbg_address, + "Op regs DCBAA ptr = %#016llx", temp_64); + xhci_dbg_trace(xhci, trace_xhci_dbg_address, + "Slot ID %d dcbaa entry @%p = %#016llx", + udev->slot_id, + &xhci->dcbaa->dev_context_ptrs[udev->slot_id], + (unsigned long long) + le64_to_cpu(xhci->dcbaa->dev_context_ptrs[udev->slot_id])); + xhci_dbg_trace(xhci, trace_xhci_dbg_address, + "Output Context DMA address = %#08llx", (unsigned long long)virt_dev->out_ctx->dma); xhci_dbg(xhci, "Slot ID %d Input Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2); + trace_xhci_address_ctx(xhci, virt_dev->in_ctx, + slot_ctx->dev_info >> 27); xhci_dbg(xhci, "Slot ID %d Output Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->out_ctx, 2); /* @@ -3860,6 +3869,8 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) * address given back to us by the HC. */ slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); + trace_xhci_address_ctx(xhci, virt_dev->out_ctx, + slot_ctx->dev_info >> 27); /* Use kernel assigned address for devices; store xHC assigned * address locally. */ virt_dev->address = (le32_to_cpu(slot_ctx->dev_state) & DEV_ADDR_MASK) @@ -3868,7 +3879,8 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) ctrl_ctx->add_flags = 0; ctrl_ctx->drop_flags = 0; - xhci_dbg(xhci, "Internal device address = %d\n", virt_dev->address); + xhci_dbg_trace(xhci, trace_xhci_dbg_address, + "Internal device address = %d", virt_dev->address); return 0; } @@ -3934,7 +3946,8 @@ static int __maybe_unused xhci_change_max_exit_latency(struct xhci_hcd *xhci, slot_ctx->dev_info2 &= cpu_to_le32(~((u32) MAX_EXIT)); slot_ctx->dev_info2 |= cpu_to_le32(max_exit_latency); - xhci_dbg(xhci, "Set up evaluate context for LPM MEL change.\n"); + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Set up evaluate context for LPM MEL change."); xhci_dbg(xhci, "Slot %u Input Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, command->in_ctx, 0); @@ -4354,7 +4367,7 @@ static u16 xhci_get_timeout_no_hub_lpm(struct usb_device *udev, state_name, sel); else dev_dbg(&udev->dev, "Device-initiated %s disabled " - "due to long PEL %llu\n ms", + "due to long PEL %llu ms\n", state_name, pel); return USB3_LPM_DISABLED; } @@ -4838,10 +4851,13 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) struct xhci_hcd *xhci; struct device *dev = hcd->self.controller; int retval; - u32 temp; /* Accept arbitrarily long scatter-gather lists */ hcd->self.sg_tablesize = ~0; + + /* support to build packet from discontinuous buffers */ + hcd->self.no_sg_constraint = 1; + /* XHCI controllers don't stop the ep queue on short packets :| */ hcd->self.no_stop_on_short = 1; @@ -4866,14 +4882,6 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) /* xHCI private pointer was set in xhci_pci_probe for the second * registered roothub. */ - xhci = hcd_to_xhci(hcd); - temp = xhci_readl(xhci, &xhci->cap_regs->hcc_params); - if (HCC_64BIT_ADDR(temp)) { - xhci_dbg(xhci, "Enabling 64-bit DMA addresses.\n"); - dma_set_mask(hcd->self.controller, DMA_BIT_MASK(64)); - } else { - dma_set_mask(hcd->self.controller, DMA_BIT_MASK(32)); - } return 0; } @@ -4912,12 +4920,12 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) goto error; xhci_dbg(xhci, "Reset complete\n"); - temp = xhci_readl(xhci, &xhci->cap_regs->hcc_params); - if (HCC_64BIT_ADDR(temp)) { + /* Set dma_mask and coherent_dma_mask to 64-bits, + * if xHC supports 64-bit addressing */ + if (HCC_64BIT_ADDR(xhci->hcc_params) && + !dma_set_mask(dev, DMA_BIT_MASK(64))) { xhci_dbg(xhci, "Enabling 64-bit DMA addresses.\n"); - dma_set_mask(hcd->self.controller, DMA_BIT_MASK(64)); - } else { - dma_set_mask(hcd->self.controller, DMA_BIT_MASK(32)); + dma_set_coherent_mask(dev, DMA_BIT_MASK(64)); } xhci_dbg(xhci, "Calling HCD init\n"); @@ -4942,12 +4950,12 @@ static int __init xhci_hcd_init(void) retval = xhci_register_pci(); if (retval < 0) { - printk(KERN_DEBUG "Problem registering PCI driver."); + pr_debug("Problem registering PCI driver.\n"); return retval; } retval = xhci_register_plat(); if (retval < 0) { - printk(KERN_DEBUG "Problem registering platform driver."); + pr_debug("Problem registering platform driver.\n"); goto unreg_pci; } /* diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index c338741a675d..46aa14894148 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1490,11 +1490,6 @@ struct xhci_hcd { struct dma_pool *small_streams_pool; struct dma_pool *medium_streams_pool; -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING - /* Poll the rings - for debugging */ - struct timer_list event_ring_timer; - int zombie; -#endif /* Host controller watchdog timer structures */ unsigned int xhc_state; @@ -1542,6 +1537,7 @@ struct xhci_hcd { #define XHCI_SPURIOUS_REBOOT (1 << 13) #define XHCI_COMP_MODE_QUIRK (1 << 14) #define XHCI_AVOID_BEI (1 << 15) +#define XHCI_PLAT (1 << 16) unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ @@ -1579,16 +1575,8 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci) return xhci->main_hcd; } -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -#define XHCI_DEBUG 1 -#else -#define XHCI_DEBUG 0 -#endif - #define xhci_dbg(xhci, fmt, args...) \ - do { if (XHCI_DEBUG) dev_dbg(xhci_to_hcd(xhci)->self.controller , fmt , ## args); } while (0) -#define xhci_info(xhci, fmt, args...) \ - do { if (XHCI_DEBUG) dev_info(xhci_to_hcd(xhci)->self.controller , fmt , ## args); } while (0) + dev_dbg(xhci_to_hcd(xhci)->self.controller , fmt , ## args) #define xhci_err(xhci, fmt, args...) \ dev_err(xhci_to_hcd(xhci)->self.controller , fmt , ## args) #define xhci_warn(xhci, fmt, args...) \ @@ -1660,6 +1648,8 @@ char *xhci_get_slot_state(struct xhci_hcd *xhci, void xhci_dbg_ep_rings(struct xhci_hcd *xhci, unsigned int slot_id, unsigned int ep_index, struct xhci_virt_ep *ep); +void xhci_dbg_trace(struct xhci_hcd *xhci, void (*trace)(struct va_format *), + const char *fmt, ...); /* xHCI memory management */ void xhci_mem_cleanup(struct xhci_hcd *xhci); diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index a51e7d6afda9..e2b21c1d9c40 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig @@ -200,6 +200,19 @@ config USB_TEST See <http://www.linux-usb.org/usbtest/> for more information, including sample test device firmware and "how to use it". +config USB_EHSET_TEST_FIXTURE + tristate "USB EHSET Test Fixture driver" + help + Say Y here if you want to support the special test fixture device + used for the USB-IF Embedded Host High-Speed Electrical Test procedure. + + When the test fixture is connected, it can enumerate as one of several + VID/PID pairs. This driver then initiates a corresponding test mode on + the downstream port to which the test fixture is attached. + + See <http://www.usb.org/developers/onthego/EHSET_v1.01.pdf> for more + information. + config USB_ISIGHTFW tristate "iSight firmware loading support" select FW_LOADER @@ -233,5 +246,6 @@ config USB_EZUSB_FX2 config USB_HSIC_USB3503 tristate "USB3503 HSIC to USB20 Driver" depends on I2C + select REGMAP help This option enables support for SMSC USB3503 HSIC to USB 2.0 Driver. diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index 3e1bd70b06ea..e748fd5dbe94 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile @@ -2,9 +2,6 @@ # Makefile for the rest of the USB drivers # (the ones that don't fit into any other categories) # - -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG - obj-$(CONFIG_USB_ADUTUX) += adutux.o obj-$(CONFIG_USB_APPLEDISPLAY) += appledisplay.o obj-$(CONFIG_USB_CYPRESS_CY7C63) += cypress_cy7c63.o @@ -22,6 +19,7 @@ obj-$(CONFIG_USB_LED) += usbled.o obj-$(CONFIG_USB_LEGOTOWER) += legousbtower.o obj-$(CONFIG_USB_RIO500) += rio500.o obj-$(CONFIG_USB_TEST) += usbtest.o +obj-$(CONFIG_USB_EHSET_TEST_FIXTURE) += ehset.o obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o obj-$(CONFIG_USB_USS720) += uss720.o obj-$(CONFIG_USB_SEVSEG) += usbsevseg.o diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c index eeb27208c0d1..3eaa83f05086 100644 --- a/drivers/usb/misc/adutux.c +++ b/drivers/usb/misc/adutux.c @@ -18,6 +18,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/errno.h> #include <linux/init.h> @@ -27,30 +29,11 @@ #include <linux/mutex.h> #include <linux/uaccess.h> -#ifdef CONFIG_USB_DEBUG -static int debug = 5; -#else -static int debug = 1; -#endif - -/* Use our own dbg macro */ -#undef dbg -#define dbg(lvl, format, arg...) \ -do { \ - if (debug >= lvl) \ - printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \ -} while (0) - - /* Version Information */ #define DRIVER_VERSION "v0.0.13" #define DRIVER_AUTHOR "John Homppi" #define DRIVER_DESC "adutux (see www.ontrak.net)" -/* Module parameters */ -module_param(debug, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Debug enabled or not"); - /* Define these values to match your device */ #define ADU_VENDOR_ID 0x0a07 #define ADU_PRODUCT_ID 0x0064 @@ -124,19 +107,11 @@ static DEFINE_MUTEX(adutux_mutex); static struct usb_driver adu_driver; -static void adu_debug_data(int level, const char *function, int size, - const unsigned char *data) +static inline void adu_debug_data(struct device *dev, const char *function, + int size, const unsigned char *data) { - int i; - - if (debug < level) - return; - - printk(KERN_DEBUG "%s: %s - length = %d, data = ", - __FILE__, function, size); - for (i = 0; i < size; ++i) - printk("%.2x ", data[i]); - printk("\n"); + dev_dbg(dev, "%s - length = %d, data = %*ph\n", + function, size, size, data); } /** @@ -147,12 +122,8 @@ static void adu_abort_transfers(struct adu_device *dev) { unsigned long flags; - dbg(2, " %s : enter", __func__); - - if (dev->udev == NULL) { - dbg(1, " %s : udev is null", __func__); - goto exit; - } + if (dev->udev == NULL) + return; /* shutdown transfer */ @@ -170,15 +141,10 @@ static void adu_abort_transfers(struct adu_device *dev) usb_kill_urb(dev->interrupt_out_urb); } else spin_unlock_irqrestore(&dev->buflock, flags); - -exit: - dbg(2, " %s : leave", __func__); } static void adu_delete(struct adu_device *dev) { - dbg(2, "%s enter", __func__); - /* free data structures */ usb_free_urb(dev->interrupt_in_urb); usb_free_urb(dev->interrupt_out_urb); @@ -187,8 +153,6 @@ static void adu_delete(struct adu_device *dev) kfree(dev->interrupt_in_buffer); kfree(dev->interrupt_out_buffer); kfree(dev); - - dbg(2, "%s : leave", __func__); } static void adu_interrupt_in_callback(struct urb *urb) @@ -196,17 +160,17 @@ static void adu_interrupt_in_callback(struct urb *urb) struct adu_device *dev = urb->context; int status = urb->status; - dbg(4, " %s : enter, status %d", __func__, status); - adu_debug_data(5, __func__, urb->actual_length, - urb->transfer_buffer); + adu_debug_data(&dev->udev->dev, __func__, + urb->actual_length, urb->transfer_buffer); spin_lock(&dev->buflock); if (status != 0) { if ((status != -ENOENT) && (status != -ECONNRESET) && (status != -ESHUTDOWN)) { - dbg(1, " %s : nonzero status received: %d", - __func__, status); + dev_dbg(&dev->udev->dev, + "%s : nonzero status received: %d\n", + __func__, status); } goto exit; } @@ -220,10 +184,11 @@ static void adu_interrupt_in_callback(struct urb *urb) dev->interrupt_in_buffer, urb->actual_length); dev->read_buffer_length += urb->actual_length; - dbg(2, " %s reading %d ", __func__, - urb->actual_length); + dev_dbg(&dev->udev->dev,"%s reading %d\n", __func__, + urb->actual_length); } else { - dbg(1, " %s : read_buffer overflow", __func__); + dev_dbg(&dev->udev->dev,"%s : read_buffer overflow\n", + __func__); } } @@ -232,9 +197,6 @@ exit: spin_unlock(&dev->buflock); /* always wake up so we recover from errors */ wake_up_interruptible(&dev->read_wait); - adu_debug_data(5, __func__, urb->actual_length, - urb->transfer_buffer); - dbg(4, " %s : leave, status %d", __func__, status); } static void adu_interrupt_out_callback(struct urb *urb) @@ -242,27 +204,23 @@ static void adu_interrupt_out_callback(struct urb *urb) struct adu_device *dev = urb->context; int status = urb->status; - dbg(4, " %s : enter, status %d", __func__, status); - adu_debug_data(5, __func__, urb->actual_length, urb->transfer_buffer); + adu_debug_data(&dev->udev->dev, __func__, + urb->actual_length, urb->transfer_buffer); if (status != 0) { if ((status != -ENOENT) && (status != -ECONNRESET)) { - dbg(1, " %s :nonzero status received: %d", - __func__, status); + dev_dbg(&dev->udev->dev, + "%s :nonzero status received: %d\n", __func__, + status); } - goto exit; + return; } spin_lock(&dev->buflock); dev->out_urb_finished = 1; wake_up(&dev->write_wait); spin_unlock(&dev->buflock); -exit: - - adu_debug_data(5, __func__, urb->actual_length, - urb->transfer_buffer); - dbg(4, " %s : leave, status %d", __func__, status); } static int adu_open(struct inode *inode, struct file *file) @@ -272,20 +230,16 @@ static int adu_open(struct inode *inode, struct file *file) int subminor; int retval; - dbg(2, "%s : enter", __func__); - subminor = iminor(inode); retval = mutex_lock_interruptible(&adutux_mutex); - if (retval) { - dbg(2, "%s : mutex lock failed", __func__); + if (retval) goto exit_no_lock; - } interface = usb_find_interface(&adu_driver, subminor); if (!interface) { - printk(KERN_ERR "adutux: %s - error, can't find device for " - "minor %d\n", __func__, subminor); + pr_err("%s - error, can't find device for minor %d\n", + __func__, subminor); retval = -ENODEV; goto exit_no_device; } @@ -303,7 +257,8 @@ static int adu_open(struct inode *inode, struct file *file) } ++dev->open_count; - dbg(2, "%s : open count %d", __func__, dev->open_count); + dev_dbg(&dev->udev->dev, "%s: open count %d\n", __func__, + dev->open_count); /* save device in the file's private structure */ file->private_data = dev; @@ -333,23 +288,19 @@ static int adu_open(struct inode *inode, struct file *file) exit_no_device: mutex_unlock(&adutux_mutex); exit_no_lock: - dbg(2, "%s : leave, return value %d ", __func__, retval); return retval; } static void adu_release_internal(struct adu_device *dev) { - dbg(2, " %s : enter", __func__); - /* decrement our usage count for the device */ --dev->open_count; - dbg(2, " %s : open count %d", __func__, dev->open_count); + dev_dbg(&dev->udev->dev, "%s : open count %d\n", __func__, + dev->open_count); if (dev->open_count <= 0) { adu_abort_transfers(dev); dev->open_count = 0; } - - dbg(2, " %s : leave", __func__); } static int adu_release(struct inode *inode, struct file *file) @@ -357,17 +308,13 @@ static int adu_release(struct inode *inode, struct file *file) struct adu_device *dev; int retval = 0; - dbg(2, " %s : enter", __func__); - if (file == NULL) { - dbg(1, " %s : file is NULL", __func__); retval = -ENODEV; goto exit; } dev = file->private_data; if (dev == NULL) { - dbg(1, " %s : object is NULL", __func__); retval = -ENODEV; goto exit; } @@ -375,7 +322,7 @@ static int adu_release(struct inode *inode, struct file *file) mutex_lock(&adutux_mutex); /* not interruptible */ if (dev->open_count <= 0) { - dbg(1, " %s : device not opened", __func__); + dev_dbg(&dev->udev->dev, "%s : device not opened\n", __func__); retval = -ENODEV; goto unlock; } @@ -389,7 +336,6 @@ static int adu_release(struct inode *inode, struct file *file) unlock: mutex_unlock(&adutux_mutex); exit: - dbg(2, " %s : leave, return value %d", __func__, retval); return retval; } @@ -406,35 +352,32 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, unsigned long flags; DECLARE_WAITQUEUE(wait, current); - dbg(2, " %s : enter, count = %Zd, file=%p", __func__, count, file); - dev = file->private_data; - dbg(2, " %s : dev=%p", __func__, dev); - if (mutex_lock_interruptible(&dev->mtx)) return -ERESTARTSYS; /* verify that the device wasn't unplugged */ if (dev->udev == NULL) { retval = -ENODEV; - printk(KERN_ERR "adutux: No device or device unplugged %d\n", - retval); + pr_err("No device or device unplugged %d\n", retval); goto exit; } /* verify that some data was requested */ if (count == 0) { - dbg(1, " %s : read request of 0 bytes", __func__); + dev_dbg(&dev->udev->dev, "%s : read request of 0 bytes\n", + __func__); goto exit; } timeout = COMMAND_TIMEOUT; - dbg(2, " %s : about to start looping", __func__); + dev_dbg(&dev->udev->dev, "%s : about to start looping\n", __func__); while (bytes_to_read) { int data_in_secondary = dev->secondary_tail - dev->secondary_head; - dbg(2, " %s : while, data_in_secondary=%d, status=%d", - __func__, data_in_secondary, - dev->interrupt_in_urb->status); + dev_dbg(&dev->udev->dev, + "%s : while, data_in_secondary=%d, status=%d\n", + __func__, data_in_secondary, + dev->interrupt_in_urb->status); if (data_in_secondary) { /* drain secondary buffer */ @@ -457,8 +400,9 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, if (dev->read_buffer_length) { /* we secure access to the primary */ char *tmp; - dbg(2, " %s : swap, read_buffer_length = %d", - __func__, dev->read_buffer_length); + dev_dbg(&dev->udev->dev, + "%s : swap, read_buffer_length = %d\n", + __func__, dev->read_buffer_length); tmp = dev->read_buffer_secondary; dev->read_buffer_secondary = dev->read_buffer_primary; dev->read_buffer_primary = tmp; @@ -473,10 +417,14 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, if (!dev->read_urb_finished) { /* somebody is doing IO */ spin_unlock_irqrestore(&dev->buflock, flags); - dbg(2, " %s : submitted already", __func__); + dev_dbg(&dev->udev->dev, + "%s : submitted already\n", + __func__); } else { /* we must initiate input */ - dbg(2, " %s : initiate input", __func__); + dev_dbg(&dev->udev->dev, + "%s : initiate input\n", + __func__); dev->read_urb_finished = 0; spin_unlock_irqrestore(&dev->buflock, flags); @@ -494,7 +442,9 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, if (retval == -ENOMEM) { retval = bytes_read ? bytes_read : -ENOMEM; } - dbg(2, " %s : submit failed", __func__); + dev_dbg(&dev->udev->dev, + "%s : submit failed\n", + __func__); goto exit; } } @@ -513,13 +463,16 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, remove_wait_queue(&dev->read_wait, &wait); if (timeout <= 0) { - dbg(2, " %s : timeout", __func__); + dev_dbg(&dev->udev->dev, + "%s : timeout\n", __func__); retval = bytes_read ? bytes_read : -ETIMEDOUT; goto exit; } if (signal_pending(current)) { - dbg(2, " %s : signal pending", __func__); + dev_dbg(&dev->udev->dev, + "%s : signal pending\n", + __func__); retval = bytes_read ? bytes_read : -EINTR; goto exit; } @@ -552,7 +505,6 @@ exit: /* unlock the device */ mutex_unlock(&dev->mtx); - dbg(2, " %s : leave, return value %d", __func__, retval); return retval; } @@ -567,8 +519,6 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, unsigned long flags; int retval; - dbg(2, " %s : enter, count = %Zd", __func__, count); - dev = file->private_data; retval = mutex_lock_interruptible(&dev->mtx); @@ -578,14 +528,14 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, /* verify that the device wasn't unplugged */ if (dev->udev == NULL) { retval = -ENODEV; - printk(KERN_ERR "adutux: No device or device unplugged %d\n", - retval); + pr_err("No device or device unplugged %d\n", retval); goto exit; } /* verify that we actually have some data to write */ if (count == 0) { - dbg(1, " %s : write request of 0 bytes", __func__); + dev_dbg(&dev->udev->dev, "%s : write request of 0 bytes\n", + __func__); goto exit; } @@ -598,13 +548,15 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, mutex_unlock(&dev->mtx); if (signal_pending(current)) { - dbg(1, " %s : interrupted", __func__); + dev_dbg(&dev->udev->dev, "%s : interrupted\n", + __func__); set_current_state(TASK_RUNNING); retval = -EINTR; goto exit_onqueue; } if (schedule_timeout(COMMAND_TIMEOUT) == 0) { - dbg(1, "%s - command timed out.", __func__); + dev_dbg(&dev->udev->dev, + "%s - command timed out.\n", __func__); retval = -ETIMEDOUT; goto exit_onqueue; } @@ -615,18 +567,22 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, goto exit_nolock; } - dbg(4, " %s : in progress, count = %Zd", __func__, count); + dev_dbg(&dev->udev->dev, + "%s : in progress, count = %Zd\n", + __func__, count); } else { spin_unlock_irqrestore(&dev->buflock, flags); set_current_state(TASK_RUNNING); remove_wait_queue(&dev->write_wait, &waita); - dbg(4, " %s : sending, count = %Zd", __func__, count); + dev_dbg(&dev->udev->dev, "%s : sending, count = %Zd\n", + __func__, count); /* write the data into interrupt_out_buffer from userspace */ buffer_size = usb_endpoint_maxp(dev->interrupt_out_endpoint); bytes_to_write = count > buffer_size ? buffer_size : count; - dbg(4, " %s : buffer_size = %Zd, count = %Zd, bytes_to_write = %Zd", - __func__, buffer_size, count, bytes_to_write); + dev_dbg(&dev->udev->dev, + "%s : buffer_size = %Zd, count = %Zd, bytes_to_write = %Zd\n", + __func__, buffer_size, count, bytes_to_write); if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write) != 0) { retval = -EFAULT; @@ -665,7 +621,6 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, exit: mutex_unlock(&dev->mtx); exit_nolock: - dbg(2, " %s : leave, return value %d", __func__, retval); return retval; exit_onqueue: @@ -711,8 +666,6 @@ static int adu_probe(struct usb_interface *interface, int out_end_size; int i; - dbg(2, " %s : enter", __func__); - if (udev == NULL) { dev_err(&interface->dev, "udev is NULL.\n"); goto exit; @@ -812,7 +765,7 @@ static int adu_probe(struct usb_interface *interface, dev_err(&interface->dev, "Could not retrieve serial number\n"); goto error; } - dbg(2, " %s : serial_number=%s", __func__, dev->serial_number); + dev_dbg(&interface->dev,"serial_number=%s", dev->serial_number); /* we can register the device now, as it is ready */ usb_set_intfdata(interface, dev); @@ -833,8 +786,6 @@ static int adu_probe(struct usb_interface *interface, le16_to_cpu(udev->descriptor.idProduct), dev->serial_number, (dev->minor - ADU_MINOR_BASE)); exit: - dbg(2, " %s : leave, return value %p (dev)", __func__, dev); - return retval; error: @@ -852,8 +803,6 @@ static void adu_disconnect(struct usb_interface *interface) struct adu_device *dev; int minor; - dbg(2, " %s : enter", __func__); - dev = usb_get_intfdata(interface); mutex_lock(&dev->mtx); /* not interruptible */ @@ -866,7 +815,8 @@ static void adu_disconnect(struct usb_interface *interface) usb_set_intfdata(interface, NULL); /* if the device is not opened, then we clean up right now */ - dbg(2, " %s : open count %d", __func__, dev->open_count); + dev_dbg(&dev->udev->dev, "%s : open count %d\n", + __func__, dev->open_count); if (!dev->open_count) adu_delete(dev); @@ -874,8 +824,6 @@ static void adu_disconnect(struct usb_interface *interface) dev_info(&interface->dev, "ADU device adutux%d now disconnected\n", (minor - ADU_MINOR_BASE)); - - dbg(2, " %s : leave", __func__); } /* usb specific object needed to register this driver with the usb subsystem */ diff --git a/drivers/usb/misc/ehset.c b/drivers/usb/misc/ehset.c new file mode 100644 index 000000000000..c31b4a33e6bb --- /dev/null +++ b/drivers/usb/misc/ehset.c @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/ch11.h> + +#define TEST_SE0_NAK_PID 0x0101 +#define TEST_J_PID 0x0102 +#define TEST_K_PID 0x0103 +#define TEST_PACKET_PID 0x0104 +#define TEST_HS_HOST_PORT_SUSPEND_RESUME 0x0106 +#define TEST_SINGLE_STEP_GET_DEV_DESC 0x0107 +#define TEST_SINGLE_STEP_SET_FEATURE 0x0108 + +static int ehset_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + int ret = -EINVAL; + struct usb_device *dev = interface_to_usbdev(intf); + struct usb_device *hub_udev = dev->parent; + struct usb_device_descriptor *buf; + u8 portnum = dev->portnum; + u16 test_pid = le16_to_cpu(dev->descriptor.idProduct); + + switch (test_pid) { + case TEST_SE0_NAK_PID: + ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, + (TEST_SE0_NAK << 8) | portnum, + NULL, 0, 1000); + break; + case TEST_J_PID: + ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, + (TEST_J << 8) | portnum, + NULL, 0, 1000); + break; + case TEST_K_PID: + ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, + (TEST_K << 8) | portnum, + NULL, 0, 1000); + break; + case TEST_PACKET_PID: + ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, + (TEST_PACKET << 8) | portnum, + NULL, 0, 1000); + break; + case TEST_HS_HOST_PORT_SUSPEND_RESUME: + /* Test: wait for 15secs -> suspend -> 15secs delay -> resume */ + msleep(15 * 1000); + ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_SUSPEND, portnum, + NULL, 0, 1000); + if (ret < 0) + break; + + msleep(15 * 1000); + ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0), + USB_REQ_CLEAR_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_SUSPEND, portnum, + NULL, 0, 1000); + break; + case TEST_SINGLE_STEP_GET_DEV_DESC: + /* Test: wait for 15secs -> GetDescriptor request */ + msleep(15 * 1000); + buf = kmalloc(USB_DT_DEVICE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, + USB_DT_DEVICE << 8, 0, + buf, USB_DT_DEVICE_SIZE, + USB_CTRL_GET_TIMEOUT); + kfree(buf); + break; + case TEST_SINGLE_STEP_SET_FEATURE: + /* + * GetDescriptor SETUP request -> 15secs delay -> IN & STATUS + * + * Note, this test is only supported on root hubs since the + * SetPortFeature handling can only be done inside the HCD's + * hub_control callback function. + */ + if (hub_udev != dev->bus->root_hub) { + dev_err(&intf->dev, "SINGLE_STEP_SET_FEATURE test only supported on root hub\n"); + break; + } + + ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0), + USB_REQ_SET_FEATURE, USB_RT_PORT, + USB_PORT_FEAT_TEST, + (6 << 8) | portnum, + NULL, 0, 60 * 1000); + + break; + default: + dev_err(&intf->dev, "%s: unsupported PID: 0x%x\n", + __func__, test_pid); + } + + return (ret < 0) ? ret : 0; +} + +static void ehset_disconnect(struct usb_interface *intf) +{ +} + +static const struct usb_device_id ehset_id_table[] = { + { USB_DEVICE(0x1a0a, TEST_SE0_NAK_PID) }, + { USB_DEVICE(0x1a0a, TEST_J_PID) }, + { USB_DEVICE(0x1a0a, TEST_K_PID) }, + { USB_DEVICE(0x1a0a, TEST_PACKET_PID) }, + { USB_DEVICE(0x1a0a, TEST_HS_HOST_PORT_SUSPEND_RESUME) }, + { USB_DEVICE(0x1a0a, TEST_SINGLE_STEP_GET_DEV_DESC) }, + { USB_DEVICE(0x1a0a, TEST_SINGLE_STEP_SET_FEATURE) }, + { } /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(usb, ehset_id_table); + +static struct usb_driver ehset_driver = { + .name = "usb_ehset_test", + .probe = ehset_probe, + .disconnect = ehset_disconnect, + .id_table = ehset_id_table, +}; + +module_usb_driver(ehset_driver); + +MODULE_DESCRIPTION("USB Driver for EHSET Test Fixture"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index ac762299eaa8..b1d59532ac22 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -129,19 +129,6 @@ MODULE_DESCRIPTION("LD USB Driver"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("LD USB Devices"); -#ifdef CONFIG_USB_DEBUG - static int debug = 1; -#else - static int debug = 0; -#endif - -/* Use our own dbg macro */ -#define dbg_info(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0) - -/* Module parameters */ -module_param(debug, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Debug enabled or not"); - /* All interrupt in transfers are collected in a ring buffer to * avoid racing conditions and get better performance of the driver. */ @@ -256,8 +243,9 @@ static void ld_usb_interrupt_in_callback(struct urb *urb) status == -ESHUTDOWN) { goto exit; } else { - dbg_info(&dev->intf->dev, "%s: nonzero status received: %d\n", - __func__, status); + dev_dbg(&dev->intf->dev, + "%s: nonzero status received: %d\n", __func__, + status); spin_lock(&dev->rbsl); goto resubmit; /* maybe we can recover */ } @@ -272,8 +260,8 @@ static void ld_usb_interrupt_in_callback(struct urb *urb) *actual_buffer = urb->actual_length; memcpy(actual_buffer+1, dev->interrupt_in_buffer, urb->actual_length); dev->ring_head = next_ring_head; - dbg_info(&dev->intf->dev, "%s: received %d bytes\n", - __func__, urb->actual_length); + dev_dbg(&dev->intf->dev, "%s: received %d bytes\n", + __func__, urb->actual_length); } else { dev_warn(&dev->intf->dev, "Ring buffer overflow, %d bytes dropped\n", @@ -310,9 +298,9 @@ static void ld_usb_interrupt_out_callback(struct urb *urb) if (status && !(status == -ENOENT || status == -ECONNRESET || status == -ESHUTDOWN)) - dbg_info(&dev->intf->dev, - "%s - nonzero write interrupt status received: %d\n", - __func__, status); + dev_dbg(&dev->intf->dev, + "%s - nonzero write interrupt status received: %d\n", + __func__, status); dev->interrupt_out_busy = 0; wake_up_interruptible(&dev->write_wait); @@ -585,7 +573,8 @@ static ssize_t ld_usb_write(struct file *file, const char __user *buffer, bytes_to_write = min(count, write_buffer_size*dev->interrupt_out_endpoint_size); if (bytes_to_write < count) dev_warn(&dev->intf->dev, "Write buffer overflow, %zd bytes dropped\n",count-bytes_to_write); - dbg_info(&dev->intf->dev, "%s: count = %zd, bytes_to_write = %zd\n", __func__, count, bytes_to_write); + dev_dbg(&dev->intf->dev, "%s: count = %zd, bytes_to_write = %zd\n", + __func__, count, bytes_to_write); if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write)) { retval = -EFAULT; diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index 80894791c020..eb37c9542052 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -75,6 +75,8 @@ * - move reset into open to clean out spurious data */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/errno.h> #include <linux/init.h> @@ -87,28 +89,11 @@ #include <linux/poll.h> -#ifdef CONFIG_USB_DEBUG - static int debug = 4; -#else - static int debug = 0; -#endif - -/* Use our own dbg macro */ -#undef dbg -#define dbg(lvl, format, arg...) \ -do { \ - if (debug >= lvl) \ - printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \ -} while (0) - /* Version Information */ #define DRIVER_VERSION "v0.96" #define DRIVER_AUTHOR "Juergen Stuber <starblue@sourceforge.net>" #define DRIVER_DESC "LEGO USB Tower Driver" -/* Module parameters */ -module_param(debug, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Debug enabled or not"); /* The defaults are chosen to work with the latest versions of leJOS and NQC. */ @@ -298,18 +283,12 @@ static struct usb_driver tower_driver = { /** * lego_usb_tower_debug_data */ -static inline void lego_usb_tower_debug_data (int level, const char *function, int size, const unsigned char *data) +static inline void lego_usb_tower_debug_data(struct device *dev, + const char *function, int size, + const unsigned char *data) { - int i; - - if (debug < level) - return; - - printk (KERN_DEBUG "%s: %s - length = %d, data = ", __FILE__, function, size); - for (i = 0; i < size; ++i) { - printk ("%.2x ", data[i]); - } - printk ("\n"); + dev_dbg(dev, "%s - length = %d, data = %*ph\n", + function, size, size, data); } @@ -318,8 +297,6 @@ static inline void lego_usb_tower_debug_data (int level, const char *function, i */ static inline void tower_delete (struct lego_usb_tower *dev) { - dbg(2, "%s: enter", __func__); - tower_abort_transfers (dev); /* free data structures */ @@ -329,8 +306,6 @@ static inline void tower_delete (struct lego_usb_tower *dev) kfree (dev->interrupt_in_buffer); kfree (dev->interrupt_out_buffer); kfree (dev); - - dbg(2, "%s: leave", __func__); } @@ -346,16 +321,13 @@ static int tower_open (struct inode *inode, struct file *file) struct tower_reset_reply reset_reply; int result; - dbg(2, "%s: enter", __func__); - nonseekable_open(inode, file); subminor = iminor(inode); interface = usb_find_interface (&tower_driver, subminor); if (!interface) { - printk(KERN_ERR "%s - error, can't find device for minor %d\n", - __func__, subminor); + pr_err("error, can't find device for minor %d\n", subminor); retval = -ENODEV; goto exit; } @@ -435,8 +407,6 @@ unlock_exit: mutex_unlock(&dev->lock); exit: - dbg(2, "%s: leave, return value %d ", __func__, retval); - return retval; } @@ -448,12 +418,9 @@ static int tower_release (struct inode *inode, struct file *file) struct lego_usb_tower *dev; int retval = 0; - dbg(2, "%s: enter", __func__); - dev = file->private_data; if (dev == NULL) { - dbg(1, "%s: object is NULL", __func__); retval = -ENODEV; goto exit_nolock; } @@ -465,7 +432,8 @@ static int tower_release (struct inode *inode, struct file *file) } if (dev->open_count != 1) { - dbg(1, "%s: device not opened exactly once", __func__); + dev_dbg(&dev->udev->dev, "%s: device not opened exactly once\n", + __func__); retval = -ENODEV; goto unlock_exit; } @@ -491,7 +459,6 @@ unlock_exit: exit: mutex_unlock(&open_disc_mutex); exit_nolock: - dbg(2, "%s: leave, return value %d", __func__, retval); return retval; } @@ -502,12 +469,8 @@ exit_nolock: */ static void tower_abort_transfers (struct lego_usb_tower *dev) { - dbg(2, "%s: enter", __func__); - - if (dev == NULL) { - dbg(1, "%s: dev is null", __func__); - goto exit; - } + if (dev == NULL) + return; /* shutdown transfer */ if (dev->interrupt_in_running) { @@ -518,9 +481,6 @@ static void tower_abort_transfers (struct lego_usb_tower *dev) } if (dev->interrupt_out_busy && dev->udev) usb_kill_urb(dev->interrupt_out_urb); - -exit: - dbg(2, "%s: leave", __func__); } @@ -553,8 +513,6 @@ static unsigned int tower_poll (struct file *file, poll_table *wait) struct lego_usb_tower *dev; unsigned int mask = 0; - dbg(2, "%s: enter", __func__); - dev = file->private_data; if (!dev->udev) @@ -571,8 +529,6 @@ static unsigned int tower_poll (struct file *file, poll_table *wait) mask |= POLLOUT | POLLWRNORM; } - dbg(2, "%s: leave, mask = %d", __func__, mask); - return mask; } @@ -597,8 +553,6 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count, int retval = 0; unsigned long timeout = 0; - dbg(2, "%s: enter, count = %Zd", __func__, count); - dev = file->private_data; /* lock this object */ @@ -610,13 +564,13 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count, /* verify that the device wasn't unplugged */ if (dev->udev == NULL) { retval = -ENODEV; - printk(KERN_ERR "legousbtower: No device or device unplugged %d\n", retval); + pr_err("No device or device unplugged %d\n", retval); goto unlock_exit; } /* verify that we actually have some data to read */ if (count == 0) { - dbg(1, "%s: read request of 0 bytes", __func__); + dev_dbg(&dev->udev->dev, "read request of 0 bytes\n"); goto unlock_exit; } @@ -672,7 +626,6 @@ unlock_exit: mutex_unlock(&dev->lock); exit: - dbg(2, "%s: leave, return value %d", __func__, retval); return retval; } @@ -686,8 +639,6 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t size_t bytes_to_write; int retval = 0; - dbg(2, "%s: enter, count = %Zd", __func__, count); - dev = file->private_data; /* lock this object */ @@ -699,13 +650,13 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t /* verify that the device wasn't unplugged */ if (dev->udev == NULL) { retval = -ENODEV; - printk(KERN_ERR "legousbtower: No device or device unplugged %d\n", retval); + pr_err("No device or device unplugged %d\n", retval); goto unlock_exit; } /* verify that we actually have some data to write */ if (count == 0) { - dbg(1, "%s: write request of 0 bytes", __func__); + dev_dbg(&dev->udev->dev, "write request of 0 bytes\n"); goto unlock_exit; } @@ -723,7 +674,8 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t /* write the data into interrupt_out_buffer from userspace */ bytes_to_write = min_t(int, count, write_buffer_size); - dbg(4, "%s: count = %Zd, bytes_to_write = %Zd", __func__, count, bytes_to_write); + dev_dbg(&dev->udev->dev, "%s: count = %Zd, bytes_to_write = %Zd\n", + __func__, count, bytes_to_write); if (copy_from_user (dev->interrupt_out_buffer, buffer, bytes_to_write)) { retval = -EFAULT; @@ -757,8 +709,6 @@ unlock_exit: mutex_unlock(&dev->lock); exit: - dbg(2, "%s: leave, return value %d", __func__, retval); - return retval; } @@ -772,9 +722,8 @@ static void tower_interrupt_in_callback (struct urb *urb) int status = urb->status; int retval; - dbg(4, "%s: enter, status %d", __func__, status); - - lego_usb_tower_debug_data(5, __func__, urb->actual_length, urb->transfer_buffer); + lego_usb_tower_debug_data(&dev->udev->dev, __func__, + urb->actual_length, urb->transfer_buffer); if (status) { if (status == -ENOENT || @@ -782,7 +731,9 @@ static void tower_interrupt_in_callback (struct urb *urb) status == -ESHUTDOWN) { goto exit; } else { - dbg(1, "%s: nonzero status received: %d", __func__, status); + dev_dbg(&dev->udev->dev, + "%s: nonzero status received: %d\n", __func__, + status); goto resubmit; /* maybe we can recover */ } } @@ -795,9 +746,11 @@ static void tower_interrupt_in_callback (struct urb *urb) urb->actual_length); dev->read_buffer_length += urb->actual_length; dev->read_last_arrival = jiffies; - dbg(3, "%s: received %d bytes", __func__, urb->actual_length); + dev_dbg(&dev->udev->dev, "%s: received %d bytes\n", + __func__, urb->actual_length); } else { - printk(KERN_WARNING "%s: read_buffer overflow, %d bytes dropped", __func__, urb->actual_length); + pr_warn("read_buffer overflow, %d bytes dropped\n", + urb->actual_length); } spin_unlock (&dev->read_buffer_lock); } @@ -815,9 +768,6 @@ resubmit: exit: dev->interrupt_in_done = 1; wake_up_interruptible (&dev->read_wait); - - lego_usb_tower_debug_data(5, __func__, urb->actual_length, urb->transfer_buffer); - dbg(4, "%s: leave, status %d", __func__, status); } @@ -829,22 +779,20 @@ static void tower_interrupt_out_callback (struct urb *urb) struct lego_usb_tower *dev = urb->context; int status = urb->status; - dbg(4, "%s: enter, status %d", __func__, status); - lego_usb_tower_debug_data(5, __func__, urb->actual_length, urb->transfer_buffer); + lego_usb_tower_debug_data(&dev->udev->dev, __func__, + urb->actual_length, urb->transfer_buffer); /* sync/async unlink faults aren't errors */ if (status && !(status == -ENOENT || status == -ECONNRESET || status == -ESHUTDOWN)) { - dbg(1, "%s - nonzero write bulk status received: %d", - __func__, status); + dev_dbg(&dev->udev->dev, + "%s: nonzero write bulk status received: %d\n", __func__, + status); } dev->interrupt_out_busy = 0; wake_up_interruptible(&dev->write_wait); - - lego_usb_tower_debug_data(5, __func__, urb->actual_length, urb->transfer_buffer); - dbg(4, "%s: leave, status %d", __func__, status); } @@ -866,8 +814,6 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device int retval = -ENOMEM; int result; - dbg(2, "%s: enter", __func__); - /* allocate memory for our device state and initialize it */ dev = kmalloc (sizeof(struct lego_usb_tower), GFP_KERNEL); @@ -993,8 +939,6 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device exit: - dbg(2, "%s: leave, return value 0x%.8lx (dev)", __func__, (long) dev); - return retval; error: @@ -1013,8 +957,6 @@ static void tower_disconnect (struct usb_interface *interface) struct lego_usb_tower *dev; int minor; - dbg(2, "%s: enter", __func__); - dev = usb_get_intfdata (interface); mutex_lock(&open_disc_mutex); usb_set_intfdata (interface, NULL); @@ -1041,8 +983,6 @@ static void tower_disconnect (struct usb_interface *interface) dev_info(&interface->dev, "LEGO USB Tower #%d now disconnected\n", (minor - LEGO_USB_TOWER_MINOR_BASE)); - - dbg(2, "%s: leave", __func__); } module_usb_driver(tower_driver); diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c index c3578393ddef..a31641e18d19 100644 --- a/drivers/usb/misc/usb3503.c +++ b/drivers/usb/misc/usb3503.c @@ -26,6 +26,7 @@ #include <linux/of_gpio.h> #include <linux/platform_device.h> #include <linux/platform_data/usb3503.h> +#include <linux/regmap.h> #define USB3503_VIDL 0x00 #define USB3503_VIDM 0x01 @@ -50,60 +51,25 @@ #define USB3503_CFGP 0xee #define USB3503_CLKSUSP (1 << 7) +#define USB3503_RESET 0xff + struct usb3503 { enum usb3503_mode mode; - struct i2c_client *client; + struct regmap *regmap; + struct device *dev; u8 port_off_mask; int gpio_intn; int gpio_reset; int gpio_connect; }; -static int usb3503_write_register(struct i2c_client *client, - char reg, char data) -{ - return i2c_smbus_write_byte_data(client, reg, data); -} - -static int usb3503_read_register(struct i2c_client *client, char reg) -{ - return i2c_smbus_read_byte_data(client, reg); -} - -static int usb3503_set_bits(struct i2c_client *client, char reg, char req) +static int usb3503_reset(struct usb3503 *hub, int state) { - int err; - - err = usb3503_read_register(client, reg); - if (err < 0) - return err; - - err = usb3503_write_register(client, reg, err | req); - if (err < 0) - return err; - - return 0; -} - -static int usb3503_clear_bits(struct i2c_client *client, char reg, char req) -{ - int err; - - err = usb3503_read_register(client, reg); - if (err < 0) - return err; - - err = usb3503_write_register(client, reg, err & ~req); - if (err < 0) - return err; - - return 0; -} + if (!state && gpio_is_valid(hub->gpio_connect)) + gpio_set_value_cansleep(hub->gpio_connect, 0); -static int usb3503_reset(int gpio_reset, int state) -{ - if (gpio_is_valid(gpio_reset)) - gpio_set_value(gpio_reset, state); + if (gpio_is_valid(hub->gpio_reset)) + gpio_set_value_cansleep(hub->gpio_reset, state); /* Wait T_HUBINIT == 4ms for hub logic to stabilize */ if (state) @@ -112,90 +78,105 @@ static int usb3503_reset(int gpio_reset, int state) return 0; } -static int usb3503_switch_mode(struct usb3503 *hub, enum usb3503_mode mode) +static int usb3503_connect(struct usb3503 *hub) { - struct i2c_client *i2c = hub->client; - int err = 0; + struct device *dev = hub->dev; + int err; - switch (mode) { - case USB3503_MODE_HUB: - usb3503_reset(hub->gpio_reset, 1); + usb3503_reset(hub, 1); + if (hub->regmap) { /* SP_ILOCK: set connect_n, config_n for config */ - err = usb3503_write_register(i2c, USB3503_SP_ILOCK, - (USB3503_SPILOCK_CONNECT + err = regmap_write(hub->regmap, USB3503_SP_ILOCK, + (USB3503_SPILOCK_CONNECT | USB3503_SPILOCK_CONFIG)); if (err < 0) { - dev_err(&i2c->dev, "SP_ILOCK failed (%d)\n", err); - goto err_hubmode; + dev_err(dev, "SP_ILOCK failed (%d)\n", err); + return err; } /* PDS : Disable For Self Powered Operation */ if (hub->port_off_mask) { - err = usb3503_set_bits(i2c, USB3503_PDS, + err = regmap_update_bits(hub->regmap, USB3503_PDS, + hub->port_off_mask, hub->port_off_mask); if (err < 0) { - dev_err(&i2c->dev, "PDS failed (%d)\n", err); - goto err_hubmode; + dev_err(dev, "PDS failed (%d)\n", err); + return err; } } /* CFG1 : SELF_BUS_PWR -> Self-Powerd operation */ - err = usb3503_set_bits(i2c, USB3503_CFG1, USB3503_SELF_BUS_PWR); + err = regmap_update_bits(hub->regmap, USB3503_CFG1, + USB3503_SELF_BUS_PWR, + USB3503_SELF_BUS_PWR); if (err < 0) { - dev_err(&i2c->dev, "CFG1 failed (%d)\n", err); - goto err_hubmode; + dev_err(dev, "CFG1 failed (%d)\n", err); + return err; } /* SP_LOCK: clear connect_n, config_n for hub connect */ - err = usb3503_clear_bits(i2c, USB3503_SP_ILOCK, - (USB3503_SPILOCK_CONNECT - | USB3503_SPILOCK_CONFIG)); + err = regmap_update_bits(hub->regmap, USB3503_SP_ILOCK, + (USB3503_SPILOCK_CONNECT + | USB3503_SPILOCK_CONFIG), 0); if (err < 0) { - dev_err(&i2c->dev, "SP_ILOCK failed (%d)\n", err); - goto err_hubmode; + dev_err(dev, "SP_ILOCK failed (%d)\n", err); + return err; } + } - hub->mode = mode; - dev_info(&i2c->dev, "switched to HUB mode\n"); + if (gpio_is_valid(hub->gpio_connect)) + gpio_set_value_cansleep(hub->gpio_connect, 1); + + hub->mode = USB3503_MODE_HUB; + dev_info(dev, "switched to HUB mode\n"); + + return 0; +} + +static int usb3503_switch_mode(struct usb3503 *hub, enum usb3503_mode mode) +{ + struct device *dev = hub->dev; + int err = 0; + + switch (mode) { + case USB3503_MODE_HUB: + err = usb3503_connect(hub); break; case USB3503_MODE_STANDBY: - usb3503_reset(hub->gpio_reset, 0); + usb3503_reset(hub, 0); hub->mode = mode; - dev_info(&i2c->dev, "switched to STANDBY mode\n"); + dev_info(dev, "switched to STANDBY mode\n"); break; default: - dev_err(&i2c->dev, "unknown mode is request\n"); + dev_err(dev, "unknown mode is requested\n"); err = -EINVAL; break; } -err_hubmode: return err; } -static int usb3503_probe(struct i2c_client *i2c, const struct i2c_device_id *id) +static const struct regmap_config usb3503_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = USB3503_RESET, +}; + +static int usb3503_probe(struct usb3503 *hub) { - struct usb3503_platform_data *pdata = i2c->dev.platform_data; - struct device_node *np = i2c->dev.of_node; - struct usb3503 *hub; - int err = -ENOMEM; - u32 mode = USB3503_MODE_UNKNOWN; + struct device *dev = hub->dev; + struct usb3503_platform_data *pdata = dev_get_platdata(dev); + struct device_node *np = dev->of_node; + int err; + u32 mode = USB3503_MODE_HUB; const u32 *property; int len; - hub = kzalloc(sizeof(struct usb3503), GFP_KERNEL); - if (!hub) { - dev_err(&i2c->dev, "private data alloc fail\n"); - return err; - } - - i2c_set_clientdata(i2c, hub); - hub->client = i2c; - if (pdata) { hub->port_off_mask = pdata->port_off_mask; hub->gpio_intn = pdata->gpio_intn; @@ -215,10 +196,10 @@ static int usb3503_probe(struct i2c_client *i2c, const struct i2c_device_id *id) } } - hub->gpio_intn = of_get_named_gpio(np, "connect-gpios", 0); + hub->gpio_intn = of_get_named_gpio(np, "intn-gpios", 0); if (hub->gpio_intn == -EPROBE_DEFER) return -EPROBE_DEFER; - hub->gpio_connect = of_get_named_gpio(np, "intn-gpios", 0); + hub->gpio_connect = of_get_named_gpio(np, "connect-gpios", 0); if (hub->gpio_connect == -EPROBE_DEFER) return -EPROBE_DEFER; hub->gpio_reset = of_get_named_gpio(np, "reset-gpios", 0); @@ -228,72 +209,86 @@ static int usb3503_probe(struct i2c_client *i2c, const struct i2c_device_id *id) hub->mode = mode; } + if (hub->port_off_mask && !hub->regmap) + dev_err(dev, "Ports disabled with no control interface\n"); + if (gpio_is_valid(hub->gpio_intn)) { - err = gpio_request_one(hub->gpio_intn, + err = devm_gpio_request_one(dev, hub->gpio_intn, GPIOF_OUT_INIT_HIGH, "usb3503 intn"); if (err) { - dev_err(&i2c->dev, - "unable to request GPIO %d as connect pin (%d)\n", - hub->gpio_intn, err); - goto err_out; + dev_err(dev, + "unable to request GPIO %d as connect pin (%d)\n", + hub->gpio_intn, err); + return err; } } if (gpio_is_valid(hub->gpio_connect)) { - err = gpio_request_one(hub->gpio_connect, - GPIOF_OUT_INIT_HIGH, "usb3503 connect"); + err = devm_gpio_request_one(dev, hub->gpio_connect, + GPIOF_OUT_INIT_LOW, "usb3503 connect"); if (err) { - dev_err(&i2c->dev, - "unable to request GPIO %d as connect pin (%d)\n", - hub->gpio_connect, err); - goto err_gpio_connect; + dev_err(dev, + "unable to request GPIO %d as connect pin (%d)\n", + hub->gpio_connect, err); + return err; } } if (gpio_is_valid(hub->gpio_reset)) { - err = gpio_request_one(hub->gpio_reset, + err = devm_gpio_request_one(dev, hub->gpio_reset, GPIOF_OUT_INIT_LOW, "usb3503 reset"); if (err) { - dev_err(&i2c->dev, - "unable to request GPIO %d as reset pin (%d)\n", - hub->gpio_reset, err); - goto err_gpio_reset; + dev_err(dev, + "unable to request GPIO %d as reset pin (%d)\n", + hub->gpio_reset, err); + return err; } } usb3503_switch_mode(hub, hub->mode); - dev_info(&i2c->dev, "%s: probed on %s mode\n", __func__, + dev_info(dev, "%s: probed in %s mode\n", __func__, (hub->mode == USB3503_MODE_HUB) ? "hub" : "standby"); return 0; +} -err_gpio_reset: - if (gpio_is_valid(hub->gpio_connect)) - gpio_free(hub->gpio_connect); -err_gpio_connect: - if (gpio_is_valid(hub->gpio_intn)) - gpio_free(hub->gpio_intn); -err_out: - kfree(hub); +static int usb3503_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct usb3503 *hub; + int err; - return err; + hub = devm_kzalloc(&i2c->dev, sizeof(struct usb3503), GFP_KERNEL); + if (!hub) { + dev_err(&i2c->dev, "private data alloc fail\n"); + return -ENOMEM; + } + + i2c_set_clientdata(i2c, hub); + hub->regmap = devm_regmap_init_i2c(i2c, &usb3503_regmap_config); + if (IS_ERR(hub->regmap)) { + err = PTR_ERR(hub->regmap); + dev_err(&i2c->dev, "Failed to initialise regmap: %d\n", err); + return err; + } + hub->dev = &i2c->dev; + + return usb3503_probe(hub); } -static int usb3503_remove(struct i2c_client *i2c) +static int usb3503_platform_probe(struct platform_device *pdev) { - struct usb3503 *hub = i2c_get_clientdata(i2c); - - if (gpio_is_valid(hub->gpio_intn)) - gpio_free(hub->gpio_intn); - if (gpio_is_valid(hub->gpio_connect)) - gpio_free(hub->gpio_connect); - if (gpio_is_valid(hub->gpio_reset)) - gpio_free(hub->gpio_reset); + struct usb3503 *hub; - kfree(hub); + hub = devm_kzalloc(&pdev->dev, sizeof(struct usb3503), GFP_KERNEL); + if (!hub) { + dev_err(&pdev->dev, "private data alloc fail\n"); + return -ENOMEM; + } + hub->dev = &pdev->dev; - return 0; + return usb3503_probe(hub); } static const struct i2c_device_id usb3503_id[] = { @@ -305,22 +300,53 @@ MODULE_DEVICE_TABLE(i2c, usb3503_id); #ifdef CONFIG_OF static const struct of_device_id usb3503_of_match[] = { { .compatible = "smsc,usb3503", }, + { .compatible = "smsc,usb3503a", }, {}, }; MODULE_DEVICE_TABLE(of, usb3503_of_match); #endif -static struct i2c_driver usb3503_driver = { +static struct i2c_driver usb3503_i2c_driver = { .driver = { .name = USB3503_I2C_NAME, .of_match_table = of_match_ptr(usb3503_of_match), }, - .probe = usb3503_probe, - .remove = usb3503_remove, + .probe = usb3503_i2c_probe, .id_table = usb3503_id, }; -module_i2c_driver(usb3503_driver); +static struct platform_driver usb3503_platform_driver = { + .driver = { + .name = USB3503_I2C_NAME, + .of_match_table = of_match_ptr(usb3503_of_match), + .owner = THIS_MODULE, + }, + .probe = usb3503_platform_probe, +}; + +static int __init usb3503_init(void) +{ + int err; + + err = i2c_register_driver(THIS_MODULE, &usb3503_i2c_driver); + if (err != 0) + pr_err("usb3503: Failed to register I2C driver: %d\n", err); + + err = platform_driver_register(&usb3503_platform_driver); + if (err != 0) + pr_err("usb3503: Failed to register platform driver: %d\n", + err); + + return 0; +} +module_init(usb3503_init); + +static void __exit usb3503_exit(void) +{ + platform_driver_unregister(&usb3503_platform_driver); + i2c_del_driver(&usb3503_i2c_driver); +} +module_exit(usb3503_exit); MODULE_AUTHOR("Dongjin Kim <tobetter@gmail.com>"); MODULE_DESCRIPTION("USB3503 USB HUB driver"); diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 8b4ca1cb450a..aa28ac8c7607 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -747,9 +747,9 @@ static int ch9_postconfig(struct usbtest_dev *dev) /* [9.4.5] get_status always works */ retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf); - if (retval != 2) { + if (retval) { dev_err(&iface->dev, "get dev status --> %d\n", retval); - return (retval < 0) ? retval : -EDOM; + return retval; } /* FIXME configuration.bmAttributes says if we could try to set/clear @@ -758,9 +758,9 @@ static int ch9_postconfig(struct usbtest_dev *dev) retval = usb_get_status(udev, USB_RECIP_INTERFACE, iface->altsetting[0].desc.bInterfaceNumber, dev->buf); - if (retval != 2) { + if (retval) { dev_err(&iface->dev, "get interface status --> %d\n", retval); - return (retval < 0) ? retval : -EDOM; + return retval; } /* FIXME get status for each endpoint in the interface */ @@ -1351,7 +1351,6 @@ static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) ep, retval); return retval; } - le16_to_cpus(&status); if (status != 1) { ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status); return -EINVAL; diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c index e129cf661223..40ef40affe83 100644 --- a/drivers/usb/misc/uss720.c +++ b/drivers/usb/misc/uss720.c @@ -75,7 +75,7 @@ struct uss720_async_request { struct list_head asynclist; struct completion compl; struct urb *urb; - struct usb_ctrlrequest dr; + struct usb_ctrlrequest *dr; __u8 reg[7]; }; @@ -98,6 +98,7 @@ static void destroy_async(struct kref *kref) if (likely(rq->urb)) usb_free_urb(rq->urb); + kfree(rq->dr); spin_lock_irqsave(&priv->asynclock, flags); list_del_init(&rq->asynclist); spin_unlock_irqrestore(&priv->asynclock, flags); @@ -120,7 +121,7 @@ static void async_complete(struct urb *urb) if (status) { dev_err(&urb->dev->dev, "async_complete: urb error %d\n", status); - } else if (rq->dr.bRequest == 3) { + } else if (rq->dr->bRequest == 3) { memcpy(priv->reg, rq->reg, sizeof(priv->reg)); #if 0 dev_dbg(&priv->usbdev->dev, @@ -152,7 +153,7 @@ static struct uss720_async_request *submit_async_request(struct parport_uss720_p usbdev = priv->usbdev; if (!usbdev) return NULL; - rq = kmalloc(sizeof(struct uss720_async_request), mem_flags); + rq = kzalloc(sizeof(struct uss720_async_request), mem_flags); if (!rq) { dev_err(&usbdev->dev, "submit_async_request out of memory\n"); return NULL; @@ -168,13 +169,18 @@ static struct uss720_async_request *submit_async_request(struct parport_uss720_p dev_err(&usbdev->dev, "submit_async_request out of memory\n"); return NULL; } - rq->dr.bRequestType = requesttype; - rq->dr.bRequest = request; - rq->dr.wValue = cpu_to_le16(value); - rq->dr.wIndex = cpu_to_le16(index); - rq->dr.wLength = cpu_to_le16((request == 3) ? sizeof(rq->reg) : 0); + rq->dr = kmalloc(sizeof(*rq->dr), mem_flags); + if (!rq->dr) { + kref_put(&rq->ref_count, destroy_async); + return NULL; + } + rq->dr->bRequestType = requesttype; + rq->dr->bRequest = request; + rq->dr->wValue = cpu_to_le16(value); + rq->dr->wIndex = cpu_to_le16(index); + rq->dr->wLength = cpu_to_le16((request == 3) ? sizeof(rq->reg) : 0); usb_fill_control_urb(rq->urb, usbdev, (requesttype & 0x80) ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0), - (unsigned char *)&rq->dr, + (unsigned char *)rq->dr, (request == 3) ? rq->reg : NULL, (request == 3) ? sizeof(rq->reg) : 0, async_complete, rq); /* rq->urb->transfer_flags |= URB_ASYNC_UNLINK; */ spin_lock_irqsave(&priv->asynclock, flags); diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 797e3fd45510..c64ee09a7c0e 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -83,6 +83,8 @@ config USB_MUSB_AM35X config USB_MUSB_DSPS tristate "TI DSPS platforms" + select USB_MUSB_AM335X_CHILD + depends on OF_IRQ config USB_MUSB_BLACKFIN tristate "Blackfin" @@ -93,6 +95,9 @@ config USB_MUSB_UX500 endchoice +config USB_MUSB_AM335X_CHILD + tristate + choice prompt 'MUSB DMA mode' default MUSB_PIO_ONLY if ARCH_MULTIPLATFORM @@ -125,6 +130,10 @@ config USB_TI_CPPI_DMA help Enable DMA transfers when TI CPPI DMA is available. +config USB_TI_CPPI41_DMA + bool 'TI CPPI 4.1 (AM335x)' + depends on ARCH_OMAP + config USB_TUSB_OMAP_DMA bool 'TUSB 6010' depends on USB_MUSB_TUSB6010 diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile index 2b82ed7c85ca..c5ea5c6dc169 100644 --- a/drivers/usb/musb/Makefile +++ b/drivers/usb/musb/Makefile @@ -20,6 +20,9 @@ obj-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o obj-$(CONFIG_USB_MUSB_BLACKFIN) += blackfin.o obj-$(CONFIG_USB_MUSB_UX500) += ux500.o + +obj-$(CONFIG_USB_MUSB_AM335X_CHILD) += musb_am335x.o + # the kconfig must guarantee that only one of the # possible I/O schemes will be enabled at a time ... # PIO only, or DMA (several potential schemes). @@ -29,3 +32,4 @@ musb_hdrc-$(CONFIG_USB_INVENTRA_DMA) += musbhsdma.o musb_hdrc-$(CONFIG_USB_TI_CPPI_DMA) += cppi_dma.o musb_hdrc-$(CONFIG_USB_TUSB_OMAP_DMA) += tusb6010_omap.o musb_hdrc-$(CONFIG_USB_UX500_DMA) += ux500_dma.o +musb_hdrc-$(CONFIG_USB_TI_CPPI41_DMA) += musb_cppi41.o diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index 2231850c0625..5c310c664218 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -33,7 +33,7 @@ #include <linux/io.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <linux/platform_data/usb-omap.h> #include "musb_core.h" @@ -218,7 +218,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci) struct musb *musb = hci; void __iomem *reg_base = musb->ctrl_base; struct device *dev = musb->controller; - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); struct omap_musb_board_data *data = plat->board_data; struct usb_otg *otg = musb->xceiv->otg; unsigned long flags; @@ -335,7 +335,7 @@ eoi: static int am35x_musb_set_mode(struct musb *musb, u8 musb_mode) { struct device *dev = musb->controller; - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); struct omap_musb_board_data *data = plat->board_data; int retval = 0; @@ -350,7 +350,7 @@ static int am35x_musb_set_mode(struct musb *musb, u8 musb_mode) static int am35x_musb_init(struct musb *musb) { struct device *dev = musb->controller; - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); struct omap_musb_board_data *data = plat->board_data; void __iomem *reg_base = musb->ctrl_base; u32 rev; @@ -394,7 +394,7 @@ static int am35x_musb_init(struct musb *musb) static int am35x_musb_exit(struct musb *musb) { struct device *dev = musb->controller; - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); struct omap_musb_board_data *data = plat->board_data; del_timer_sync(&otg_workaround); @@ -456,7 +456,7 @@ static u64 am35x_dmamask = DMA_BIT_MASK(32); static int am35x_probe(struct platform_device *pdev) { - struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct am35x_glue *glue; @@ -577,7 +577,7 @@ static int am35x_remove(struct platform_device *pdev) static int am35x_suspend(struct device *dev) { struct am35x_glue *glue = dev_get_drvdata(dev); - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); struct omap_musb_board_data *data = plat->board_data; /* Shutdown the on-chip PHY and its PLL. */ @@ -593,7 +593,7 @@ static int am35x_suspend(struct device *dev) static int am35x_resume(struct device *dev) { struct am35x_glue *glue = dev_get_drvdata(dev); - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); struct omap_musb_board_data *data = plat->board_data; int ret; diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index 6ba8439bd5a6..72e2056b6082 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -19,7 +19,7 @@ #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/prefetch.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <asm/cacheflush.h> @@ -451,7 +451,7 @@ static u64 bfin_dmamask = DMA_BIT_MASK(32); static int bfin_probe(struct platform_device *pdev) { struct resource musb_resources[2]; - struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct bfin_glue *glue; diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c index 9db211ee15b5..904fb85d85a6 100644 --- a/drivers/usb/musb/cppi_dma.c +++ b/drivers/usb/musb/cppi_dma.c @@ -150,14 +150,11 @@ static void cppi_pool_free(struct cppi_channel *c) c->last_processed = NULL; } -static int cppi_controller_start(struct dma_controller *c) +static void cppi_controller_start(struct cppi *controller) { - struct cppi *controller; void __iomem *tibase; int i; - controller = container_of(c, struct cppi, controller); - /* do whatever is necessary to start controller */ for (i = 0; i < ARRAY_SIZE(controller->tx); i++) { controller->tx[i].transmit = true; @@ -212,8 +209,6 @@ static int cppi_controller_start(struct dma_controller *c) /* disable RNDIS mode, also host rx RNDIS autorequest */ musb_writel(tibase, DAVINCI_RNDIS_REG, 0); musb_writel(tibase, DAVINCI_AUTOREQ_REG, 0); - - return 0; } /* @@ -222,14 +217,12 @@ static int cppi_controller_start(struct dma_controller *c) * De-Init the DMA controller as necessary. */ -static int cppi_controller_stop(struct dma_controller *c) +static void cppi_controller_stop(struct cppi *controller) { - struct cppi *controller; void __iomem *tibase; int i; struct musb *musb; - controller = container_of(c, struct cppi, controller); musb = controller->musb; tibase = controller->tibase; @@ -255,8 +248,6 @@ static int cppi_controller_stop(struct dma_controller *c) /*disable tx/rx cppi */ musb_writel(tibase, DAVINCI_TXCPPI_CTRL_REG, DAVINCI_DMA_CTRL_DISABLE); musb_writel(tibase, DAVINCI_RXCPPI_CTRL_REG, DAVINCI_DMA_CTRL_DISABLE); - - return 0; } /* While dma channel is allocated, we only want the core irqs active @@ -1321,8 +1312,6 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mr controller->tibase = mregs - DAVINCI_BASE_OFFSET; controller->musb = musb; - controller->controller.start = cppi_controller_start; - controller->controller.stop = cppi_controller_stop; controller->controller.channel_alloc = cppi_channel_allocate; controller->controller.channel_release = cppi_channel_release; controller->controller.channel_program = cppi_channel_program; @@ -1351,6 +1340,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mr controller->irq = irq; } + cppi_controller_start(controller); return &controller->controller; } @@ -1363,6 +1353,8 @@ void dma_controller_destroy(struct dma_controller *c) cppi = container_of(c, struct cppi, controller); + cppi_controller_stop(cppi); + if (cppi->irq) free_irq(cppi->irq, cppi->musb); diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index 0da6f648a9fe..d9ddf4122f37 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -33,7 +33,7 @@ #include <linux/io.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <mach/da8xx.h> #include <linux/platform_data/usb-davinci.h> @@ -477,7 +477,7 @@ static u64 da8xx_dmamask = DMA_BIT_MASK(32); static int da8xx_probe(struct platform_device *pdev) { struct resource musb_resources[2]; - struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct da8xx_glue *glue; diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index f8aeaf2e2cd1..ed0834e2b72e 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -33,7 +33,7 @@ #include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <mach/cputype.h> #include <mach/hardware.h> @@ -510,7 +510,7 @@ static u64 davinci_dmamask = DMA_BIT_MASK(32); static int davinci_probe(struct platform_device *pdev) { struct resource musb_resources[2]; - struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct davinci_glue *glue; struct clk *clk; diff --git a/drivers/usb/musb/musb_am335x.c b/drivers/usb/musb/musb_am335x.c new file mode 100644 index 000000000000..41ac5b5b57ce --- /dev/null +++ b/drivers/usb/musb/musb_am335x.c @@ -0,0 +1,55 @@ +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/module.h> +#include <linux/of_platform.h> + +static int am335x_child_probe(struct platform_device *pdev) +{ + int ret; + + pm_runtime_enable(&pdev->dev); + + ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); + if (ret) + goto err; + + return 0; +err: + pm_runtime_disable(&pdev->dev); + return ret; +} + +static int of_remove_populated_child(struct device *dev, void *d) +{ + struct platform_device *pdev = to_platform_device(dev); + + of_device_unregister(pdev); + return 0; +} + +static int am335x_child_remove(struct platform_device *pdev) +{ + device_for_each_child(&pdev->dev, NULL, of_remove_populated_child); + pm_runtime_disable(&pdev->dev); + return 0; +} + +static const struct of_device_id am335x_child_of_match[] = { + { .compatible = "ti,am33xx-usb" }, + { }, +}; +MODULE_DEVICE_TABLE(of, am335x_child_of_match); + +static struct platform_driver am335x_child_driver = { + .probe = am335x_child_probe, + .remove = am335x_child_remove, + .driver = { + .name = "am335x-usb-childs", + .of_match_table = of_match_ptr(am335x_child_of_match), + }, +}; + +module_platform_driver(am335x_child_driver); +MODULE_DESCRIPTION("AM33xx child devices"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 29a24ced6748..18e877ffe7b7 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -99,7 +99,6 @@ #include <linux/prefetch.h> #include <linux/platform_device.h> #include <linux/io.h> -#include <linux/idr.h> #include <linux/dma-mapping.h> #include "musb_core.h" @@ -1764,12 +1763,8 @@ static void musb_free(struct musb *musb) disable_irq_wake(musb->nIrq); free_irq(musb->nIrq, musb); } - if (is_dma_capable() && musb->dma_controller) { - struct dma_controller *c = musb->dma_controller; - - (void) c->stop(c); - dma_controller_destroy(c); - } + if (musb->dma_controller) + dma_controller_destroy(musb->dma_controller); musb_host_free(musb); } @@ -1787,7 +1782,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) { int status; struct musb *musb; - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); /* The driver might handle more features than the board; OK. * Fail when the board needs a feature that's not enabled. @@ -1844,19 +1839,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) pm_runtime_get_sync(musb->controller); -#ifndef CONFIG_MUSB_PIO_ONLY - if (use_dma && dev->dma_mask) { - struct dma_controller *c; - - c = dma_controller_create(musb, musb->mregs); - musb->dma_controller = c; - if (c) - (void) c->start(c); - } -#endif - /* ideally this would be abstracted in platform setup */ - if (!is_dma_capable() || !musb->dma_controller) - dev->dma_mask = NULL; + if (use_dma && dev->dma_mask) + musb->dma_controller = dma_controller_create(musb, musb->mregs); /* be sure interrupts are disabled before connecting ISR */ musb_platform_disable(musb); @@ -1944,6 +1928,8 @@ fail4: musb_gadget_cleanup(musb); fail3: + if (musb->dma_controller) + dma_controller_destroy(musb->dma_controller); pm_runtime_put_sync(musb->controller); fail2: @@ -2002,9 +1988,6 @@ static int musb_remove(struct platform_device *pdev) musb_free(musb); device_init_wakeup(dev, 0); -#ifndef CONFIG_MUSB_PIO_ONLY - dma_set_mask(dev, *dev->parent->dma_mask); -#endif return 0; } diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 7d341c387eab..65f3917b4fc5 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -83,11 +83,6 @@ enum { MUSB_PORT_MODE_DUAL_ROLE, }; -#ifdef CONFIG_PROC_FS -#include <linux/fs.h> -#define MUSB_CONFIG_PROC_FS -#endif - /****************************** CONSTANTS ********************************/ #ifndef MUSB_C_NUM_EPS @@ -425,9 +420,6 @@ struct musb { struct musb_hdrc_config *config; -#ifdef MUSB_CONFIG_PROC_FS - struct proc_dir_entry *proc_entry; -#endif int xceiv_old_state; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_root; diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c new file mode 100644 index 000000000000..ae959746f77f --- /dev/null +++ b/drivers/usb/musb/musb_cppi41.c @@ -0,0 +1,557 @@ +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <linux/dmaengine.h> +#include <linux/sizes.h> +#include <linux/platform_device.h> +#include <linux/of.h> + +#include "musb_core.h" + +#define RNDIS_REG(x) (0x80 + ((x - 1) * 4)) + +#define EP_MODE_AUTOREG_NONE 0 +#define EP_MODE_AUTOREG_ALL_NEOP 1 +#define EP_MODE_AUTOREG_ALWAYS 3 + +#define EP_MODE_DMA_TRANSPARENT 0 +#define EP_MODE_DMA_RNDIS 1 +#define EP_MODE_DMA_GEN_RNDIS 3 + +#define USB_CTRL_TX_MODE 0x70 +#define USB_CTRL_RX_MODE 0x74 +#define USB_CTRL_AUTOREQ 0xd0 +#define USB_TDOWN 0xd8 + +struct cppi41_dma_channel { + struct dma_channel channel; + struct cppi41_dma_controller *controller; + struct musb_hw_ep *hw_ep; + struct dma_chan *dc; + dma_cookie_t cookie; + u8 port_num; + u8 is_tx; + u8 is_allocated; + u8 usb_toggle; + + dma_addr_t buf_addr; + u32 total_len; + u32 prog_len; + u32 transferred; + u32 packet_sz; +}; + +#define MUSB_DMA_NUM_CHANNELS 15 + +struct cppi41_dma_controller { + struct dma_controller controller; + struct cppi41_dma_channel rx_channel[MUSB_DMA_NUM_CHANNELS]; + struct cppi41_dma_channel tx_channel[MUSB_DMA_NUM_CHANNELS]; + struct musb *musb; + u32 rx_mode; + u32 tx_mode; + u32 auto_req; +}; + +static void save_rx_toggle(struct cppi41_dma_channel *cppi41_channel) +{ + u16 csr; + u8 toggle; + + if (cppi41_channel->is_tx) + return; + if (!is_host_active(cppi41_channel->controller->musb)) + return; + + csr = musb_readw(cppi41_channel->hw_ep->regs, MUSB_RXCSR); + toggle = csr & MUSB_RXCSR_H_DATATOGGLE ? 1 : 0; + + cppi41_channel->usb_toggle = toggle; +} + +static void update_rx_toggle(struct cppi41_dma_channel *cppi41_channel) +{ + u16 csr; + u8 toggle; + + if (cppi41_channel->is_tx) + return; + if (!is_host_active(cppi41_channel->controller->musb)) + return; + + csr = musb_readw(cppi41_channel->hw_ep->regs, MUSB_RXCSR); + toggle = csr & MUSB_RXCSR_H_DATATOGGLE ? 1 : 0; + + /* + * AM335x Advisory 1.0.13: Due to internal synchronisation error the + * data toggle may reset from DATA1 to DATA0 during receiving data from + * more than one endpoint. + */ + if (!toggle && toggle == cppi41_channel->usb_toggle) { + csr |= MUSB_RXCSR_H_DATATOGGLE | MUSB_RXCSR_H_WR_DATATOGGLE; + musb_writew(cppi41_channel->hw_ep->regs, MUSB_RXCSR, csr); + dev_dbg(cppi41_channel->controller->musb->controller, + "Restoring DATA1 toggle.\n"); + } + + cppi41_channel->usb_toggle = toggle; +} + +static void cppi41_dma_callback(void *private_data) +{ + struct dma_channel *channel = private_data; + struct cppi41_dma_channel *cppi41_channel = channel->private_data; + struct musb_hw_ep *hw_ep = cppi41_channel->hw_ep; + struct musb *musb = hw_ep->musb; + unsigned long flags; + struct dma_tx_state txstate; + u32 transferred; + + spin_lock_irqsave(&musb->lock, flags); + + dmaengine_tx_status(cppi41_channel->dc, cppi41_channel->cookie, + &txstate); + transferred = cppi41_channel->prog_len - txstate.residue; + cppi41_channel->transferred += transferred; + + dev_dbg(musb->controller, "DMA transfer done on hw_ep=%d bytes=%d/%d\n", + hw_ep->epnum, cppi41_channel->transferred, + cppi41_channel->total_len); + + update_rx_toggle(cppi41_channel); + + if (cppi41_channel->transferred == cppi41_channel->total_len || + transferred < cppi41_channel->packet_sz) { + + /* done, complete */ + cppi41_channel->channel.actual_len = + cppi41_channel->transferred; + cppi41_channel->channel.status = MUSB_DMA_STATUS_FREE; + musb_dma_completion(musb, hw_ep->epnum, cppi41_channel->is_tx); + } else { + /* next iteration, reload */ + struct dma_chan *dc = cppi41_channel->dc; + struct dma_async_tx_descriptor *dma_desc; + enum dma_transfer_direction direction; + u16 csr; + u32 remain_bytes; + void __iomem *epio = cppi41_channel->hw_ep->regs; + + cppi41_channel->buf_addr += cppi41_channel->packet_sz; + + remain_bytes = cppi41_channel->total_len; + remain_bytes -= cppi41_channel->transferred; + remain_bytes = min(remain_bytes, cppi41_channel->packet_sz); + cppi41_channel->prog_len = remain_bytes; + + direction = cppi41_channel->is_tx ? DMA_MEM_TO_DEV + : DMA_DEV_TO_MEM; + dma_desc = dmaengine_prep_slave_single(dc, + cppi41_channel->buf_addr, + remain_bytes, + direction, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + if (WARN_ON(!dma_desc)) { + spin_unlock_irqrestore(&musb->lock, flags); + return; + } + + dma_desc->callback = cppi41_dma_callback; + dma_desc->callback_param = channel; + cppi41_channel->cookie = dma_desc->tx_submit(dma_desc); + dma_async_issue_pending(dc); + + if (!cppi41_channel->is_tx) { + csr = musb_readw(epio, MUSB_RXCSR); + csr |= MUSB_RXCSR_H_REQPKT; + musb_writew(epio, MUSB_RXCSR, csr); + } + } + spin_unlock_irqrestore(&musb->lock, flags); +} + +static u32 update_ep_mode(unsigned ep, unsigned mode, u32 old) +{ + unsigned shift; + + shift = (ep - 1) * 2; + old &= ~(3 << shift); + old |= mode << shift; + return old; +} + +static void cppi41_set_dma_mode(struct cppi41_dma_channel *cppi41_channel, + unsigned mode) +{ + struct cppi41_dma_controller *controller = cppi41_channel->controller; + u32 port; + u32 new_mode; + u32 old_mode; + + if (cppi41_channel->is_tx) + old_mode = controller->tx_mode; + else + old_mode = controller->rx_mode; + port = cppi41_channel->port_num; + new_mode = update_ep_mode(port, mode, old_mode); + + if (new_mode == old_mode) + return; + if (cppi41_channel->is_tx) { + controller->tx_mode = new_mode; + musb_writel(controller->musb->ctrl_base, USB_CTRL_TX_MODE, + new_mode); + } else { + controller->rx_mode = new_mode; + musb_writel(controller->musb->ctrl_base, USB_CTRL_RX_MODE, + new_mode); + } +} + +static void cppi41_set_autoreq_mode(struct cppi41_dma_channel *cppi41_channel, + unsigned mode) +{ + struct cppi41_dma_controller *controller = cppi41_channel->controller; + u32 port; + u32 new_mode; + u32 old_mode; + + old_mode = controller->auto_req; + port = cppi41_channel->port_num; + new_mode = update_ep_mode(port, mode, old_mode); + + if (new_mode == old_mode) + return; + controller->auto_req = new_mode; + musb_writel(controller->musb->ctrl_base, USB_CTRL_AUTOREQ, new_mode); +} + +static bool cppi41_configure_channel(struct dma_channel *channel, + u16 packet_sz, u8 mode, + dma_addr_t dma_addr, u32 len) +{ + struct cppi41_dma_channel *cppi41_channel = channel->private_data; + struct dma_chan *dc = cppi41_channel->dc; + struct dma_async_tx_descriptor *dma_desc; + enum dma_transfer_direction direction; + struct musb *musb = cppi41_channel->controller->musb; + unsigned use_gen_rndis = 0; + + dev_dbg(musb->controller, + "configure ep%d/%x packet_sz=%d, mode=%d, dma_addr=0x%llx, len=%d is_tx=%d\n", + cppi41_channel->port_num, RNDIS_REG(cppi41_channel->port_num), + packet_sz, mode, (unsigned long long) dma_addr, + len, cppi41_channel->is_tx); + + cppi41_channel->buf_addr = dma_addr; + cppi41_channel->total_len = len; + cppi41_channel->transferred = 0; + cppi41_channel->packet_sz = packet_sz; + + /* + * Due to AM335x' Advisory 1.0.13 we are not allowed to transfer more + * than max packet size at a time. + */ + if (cppi41_channel->is_tx) + use_gen_rndis = 1; + + if (use_gen_rndis) { + /* RNDIS mode */ + if (len > packet_sz) { + musb_writel(musb->ctrl_base, + RNDIS_REG(cppi41_channel->port_num), len); + /* gen rndis */ + cppi41_set_dma_mode(cppi41_channel, + EP_MODE_DMA_GEN_RNDIS); + + /* auto req */ + cppi41_set_autoreq_mode(cppi41_channel, + EP_MODE_AUTOREG_ALL_NEOP); + } else { + musb_writel(musb->ctrl_base, + RNDIS_REG(cppi41_channel->port_num), 0); + cppi41_set_dma_mode(cppi41_channel, + EP_MODE_DMA_TRANSPARENT); + cppi41_set_autoreq_mode(cppi41_channel, + EP_MODE_AUTOREG_NONE); + } + } else { + /* fallback mode */ + cppi41_set_dma_mode(cppi41_channel, EP_MODE_DMA_TRANSPARENT); + cppi41_set_autoreq_mode(cppi41_channel, EP_MODE_AUTOREG_NONE); + len = min_t(u32, packet_sz, len); + } + cppi41_channel->prog_len = len; + direction = cppi41_channel->is_tx ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; + dma_desc = dmaengine_prep_slave_single(dc, dma_addr, len, direction, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + if (!dma_desc) + return false; + + dma_desc->callback = cppi41_dma_callback; + dma_desc->callback_param = channel; + cppi41_channel->cookie = dma_desc->tx_submit(dma_desc); + + save_rx_toggle(cppi41_channel); + dma_async_issue_pending(dc); + return true; +} + +static struct dma_channel *cppi41_dma_channel_allocate(struct dma_controller *c, + struct musb_hw_ep *hw_ep, u8 is_tx) +{ + struct cppi41_dma_controller *controller = container_of(c, + struct cppi41_dma_controller, controller); + struct cppi41_dma_channel *cppi41_channel = NULL; + u8 ch_num = hw_ep->epnum - 1; + + if (ch_num >= MUSB_DMA_NUM_CHANNELS) + return NULL; + + if (is_tx) + cppi41_channel = &controller->tx_channel[ch_num]; + else + cppi41_channel = &controller->rx_channel[ch_num]; + + if (!cppi41_channel->dc) + return NULL; + + if (cppi41_channel->is_allocated) + return NULL; + + cppi41_channel->hw_ep = hw_ep; + cppi41_channel->is_allocated = 1; + + return &cppi41_channel->channel; +} + +static void cppi41_dma_channel_release(struct dma_channel *channel) +{ + struct cppi41_dma_channel *cppi41_channel = channel->private_data; + + if (cppi41_channel->is_allocated) { + cppi41_channel->is_allocated = 0; + channel->status = MUSB_DMA_STATUS_FREE; + channel->actual_len = 0; + } +} + +static int cppi41_dma_channel_program(struct dma_channel *channel, + u16 packet_sz, u8 mode, + dma_addr_t dma_addr, u32 len) +{ + int ret; + + BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN || + channel->status == MUSB_DMA_STATUS_BUSY); + + channel->status = MUSB_DMA_STATUS_BUSY; + channel->actual_len = 0; + ret = cppi41_configure_channel(channel, packet_sz, mode, dma_addr, len); + if (!ret) + channel->status = MUSB_DMA_STATUS_FREE; + + return ret; +} + +static int cppi41_is_compatible(struct dma_channel *channel, u16 maxpacket, + void *buf, u32 length) +{ + struct cppi41_dma_channel *cppi41_channel = channel->private_data; + struct cppi41_dma_controller *controller = cppi41_channel->controller; + struct musb *musb = controller->musb; + + if (is_host_active(musb)) { + WARN_ON(1); + return 1; + } + if (cppi41_channel->is_tx) + return 1; + /* AM335x Advisory 1.0.13. No workaround for device RX mode */ + return 0; +} + +static int cppi41_dma_channel_abort(struct dma_channel *channel) +{ + struct cppi41_dma_channel *cppi41_channel = channel->private_data; + struct cppi41_dma_controller *controller = cppi41_channel->controller; + struct musb *musb = controller->musb; + void __iomem *epio = cppi41_channel->hw_ep->regs; + int tdbit; + int ret; + unsigned is_tx; + u16 csr; + + is_tx = cppi41_channel->is_tx; + dev_dbg(musb->controller, "abort channel=%d, is_tx=%d\n", + cppi41_channel->port_num, is_tx); + + if (cppi41_channel->channel.status == MUSB_DMA_STATUS_FREE) + return 0; + + if (is_tx) { + csr = musb_readw(epio, MUSB_TXCSR); + csr &= ~MUSB_TXCSR_DMAENAB; + musb_writew(epio, MUSB_TXCSR, csr); + } else { + csr = musb_readw(epio, MUSB_RXCSR); + csr &= ~(MUSB_RXCSR_H_REQPKT | MUSB_RXCSR_DMAENAB); + musb_writew(epio, MUSB_RXCSR, csr); + + csr = musb_readw(epio, MUSB_RXCSR); + if (csr & MUSB_RXCSR_RXPKTRDY) { + csr |= MUSB_RXCSR_FLUSHFIFO; + musb_writew(epio, MUSB_RXCSR, csr); + musb_writew(epio, MUSB_RXCSR, csr); + } + } + + tdbit = 1 << cppi41_channel->port_num; + if (is_tx) + tdbit <<= 16; + + do { + musb_writel(musb->ctrl_base, USB_TDOWN, tdbit); + ret = dmaengine_terminate_all(cppi41_channel->dc); + } while (ret == -EAGAIN); + + musb_writel(musb->ctrl_base, USB_TDOWN, tdbit); + + if (is_tx) { + csr = musb_readw(epio, MUSB_TXCSR); + if (csr & MUSB_TXCSR_TXPKTRDY) { + csr |= MUSB_TXCSR_FLUSHFIFO; + musb_writew(epio, MUSB_TXCSR, csr); + } + } + + cppi41_channel->channel.status = MUSB_DMA_STATUS_FREE; + return 0; +} + +static void cppi41_release_all_dma_chans(struct cppi41_dma_controller *ctrl) +{ + struct dma_chan *dc; + int i; + + for (i = 0; i < MUSB_DMA_NUM_CHANNELS; i++) { + dc = ctrl->tx_channel[i].dc; + if (dc) + dma_release_channel(dc); + dc = ctrl->rx_channel[i].dc; + if (dc) + dma_release_channel(dc); + } +} + +static void cppi41_dma_controller_stop(struct cppi41_dma_controller *controller) +{ + cppi41_release_all_dma_chans(controller); +} + +static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller) +{ + struct musb *musb = controller->musb; + struct device *dev = musb->controller; + struct device_node *np = dev->of_node; + struct cppi41_dma_channel *cppi41_channel; + int count; + int i; + int ret; + + count = of_property_count_strings(np, "dma-names"); + if (count < 0) + return count; + + for (i = 0; i < count; i++) { + struct dma_chan *dc; + struct dma_channel *musb_dma; + const char *str; + unsigned is_tx; + unsigned int port; + + ret = of_property_read_string_index(np, "dma-names", i, &str); + if (ret) + goto err; + if (!strncmp(str, "tx", 2)) + is_tx = 1; + else if (!strncmp(str, "rx", 2)) + is_tx = 0; + else { + dev_err(dev, "Wrong dmatype %s\n", str); + goto err; + } + ret = kstrtouint(str + 2, 0, &port); + if (ret) + goto err; + + if (port > MUSB_DMA_NUM_CHANNELS || !port) + goto err; + if (is_tx) + cppi41_channel = &controller->tx_channel[port - 1]; + else + cppi41_channel = &controller->rx_channel[port - 1]; + + cppi41_channel->controller = controller; + cppi41_channel->port_num = port; + cppi41_channel->is_tx = is_tx; + + musb_dma = &cppi41_channel->channel; + musb_dma->private_data = cppi41_channel; + musb_dma->status = MUSB_DMA_STATUS_FREE; + musb_dma->max_len = SZ_4M; + + dc = dma_request_slave_channel(dev, str); + if (!dc) { + dev_err(dev, "Falied to request %s.\n", str); + goto err; + } + cppi41_channel->dc = dc; + } + return 0; +err: + cppi41_release_all_dma_chans(controller); + return -EINVAL; +} + +void dma_controller_destroy(struct dma_controller *c) +{ + struct cppi41_dma_controller *controller = container_of(c, + struct cppi41_dma_controller, controller); + + cppi41_dma_controller_stop(controller); + kfree(controller); +} + +struct dma_controller *dma_controller_create(struct musb *musb, + void __iomem *base) +{ + struct cppi41_dma_controller *controller; + int ret; + + if (!musb->controller->of_node) { + dev_err(musb->controller, "Need DT for the DMA engine.\n"); + return NULL; + } + + controller = kzalloc(sizeof(*controller), GFP_KERNEL); + if (!controller) + goto kzalloc_fail; + + controller->musb = musb; + + controller->controller.channel_alloc = cppi41_dma_channel_allocate; + controller->controller.channel_release = cppi41_dma_channel_release; + controller->controller.channel_program = cppi41_dma_channel_program; + controller->controller.channel_abort = cppi41_dma_channel_abort; + controller->controller.is_compatible = cppi41_is_compatible; + + ret = cppi41_dma_controller_start(controller); + if (ret) + goto plat_get_fail; + return &controller->controller; + +plat_get_fail: + kfree(controller); +kzalloc_fail: + return NULL; +} diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h index 1b6b827b769f..1345a4ff041a 100644 --- a/drivers/usb/musb/musb_dma.h +++ b/drivers/usb/musb/musb_dma.h @@ -62,13 +62,13 @@ struct musb_hw_ep; #define DMA_ADDR_INVALID (~(dma_addr_t)0) -#ifndef CONFIG_MUSB_PIO_ONLY -#define is_dma_capable() (1) -#else +#ifdef CONFIG_MUSB_PIO_ONLY #define is_dma_capable() (0) +#else +#define is_dma_capable() (1) #endif -#ifdef CONFIG_USB_TI_CPPI_DMA +#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA) #define is_cppi_enabled() 1 #else #define is_cppi_enabled() 0 @@ -159,8 +159,6 @@ dma_channel_status(struct dma_channel *c) * Controllers manage dma channels. */ struct dma_controller { - int (*start)(struct dma_controller *); - int (*stop)(struct dma_controller *); struct dma_channel *(*channel_alloc)(struct dma_controller *, struct musb_hw_ep *, u8 is_tx); void (*channel_release)(struct dma_channel *); @@ -177,9 +175,20 @@ struct dma_controller { /* called after channel_program(), may indicate a fault */ extern void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit); +#ifdef CONFIG_MUSB_PIO_ONLY +static inline struct dma_controller *dma_controller_create(struct musb *m, + void __iomem *io) +{ + return NULL; +} + +static inline void dma_controller_destroy(struct dma_controller *d) { } + +#else extern struct dma_controller *dma_controller_create(struct musb *, void __iomem *); extern void dma_controller_destroy(struct dma_controller *); +#endif #endif /* __MUSB_DMA_H__ */ diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 5233804d66b1..4047cbb91bac 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -36,19 +36,19 @@ #include <linux/dma-mapping.h> #include <linux/pm_runtime.h> #include <linux/module.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <linux/platform_data/usb-omap.h> #include <linux/sizes.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/usb/of.h> #include "musb_core.h" -#ifdef CONFIG_OF static const struct of_device_id musb_dsps_of_match[]; -#endif /** * avoid using musb_readx()/musb_writex() as glue layer should not be @@ -75,7 +75,6 @@ struct dsps_musb_wrapper { u16 revision; u16 control; u16 status; - u16 eoi; u16 epintr_set; u16 epintr_clear; u16 epintr_status; @@ -108,10 +107,7 @@ struct dsps_musb_wrapper { /* bit positions for mode */ unsigned iddig:5; /* miscellaneous stuff */ - u32 musb_core_offset; u8 poll_seconds; - /* number of musb instances */ - u8 instances; }; /** @@ -119,53 +115,12 @@ struct dsps_musb_wrapper { */ struct dsps_glue { struct device *dev; - struct platform_device *musb[2]; /* child musb pdev */ + struct platform_device *musb; /* child musb pdev */ const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */ - struct timer_list timer[2]; /* otg_workaround timer */ - unsigned long last_timer[2]; /* last timer data for each instance */ - u32 __iomem *usb_ctrl[2]; + struct timer_list timer; /* otg_workaround timer */ + unsigned long last_timer; /* last timer data for each instance */ }; -#define DSPS_AM33XX_CONTROL_MODULE_PHYS_0 0x44e10620 -#define DSPS_AM33XX_CONTROL_MODULE_PHYS_1 0x44e10628 - -static const resource_size_t dsps_control_module_phys[] = { - DSPS_AM33XX_CONTROL_MODULE_PHYS_0, - DSPS_AM33XX_CONTROL_MODULE_PHYS_1, -}; - -#define USBPHY_CM_PWRDN (1 << 0) -#define USBPHY_OTG_PWRDN (1 << 1) -#define USBPHY_OTGVDET_EN (1 << 19) -#define USBPHY_OTGSESSEND_EN (1 << 20) - -/** - * musb_dsps_phy_control - phy on/off - * @glue: struct dsps_glue * - * @id: musb instance - * @on: flag for phy to be switched on or off - * - * This is to enable the PHY using usb_ctrl register in system control - * module space. - * - * XXX: This function will be removed once we have a seperate driver for - * control module - */ -static void musb_dsps_phy_control(struct dsps_glue *glue, u8 id, u8 on) -{ - u32 usbphycfg; - - usbphycfg = readl(glue->usb_ctrl[id]); - - if (on) { - usbphycfg &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN); - usbphycfg |= USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN; - } else { - usbphycfg |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN; - } - - writel(usbphycfg, glue->usb_ctrl[id]); -} /** * dsps_musb_enable - enable interrupts */ @@ -205,7 +160,6 @@ static void dsps_musb_disable(struct musb *musb) dsps_writel(reg_base, wrp->epintr_clear, wrp->txep_bitmap | wrp->rxep_bitmap); dsps_writeb(musb->mregs, MUSB_DEVCTL, 0); - dsps_writel(reg_base, wrp->eoi, 0); } static void otg_timer(unsigned long _musb) @@ -213,7 +167,6 @@ static void otg_timer(unsigned long _musb) struct musb *musb = (void *)_musb; void __iomem *mregs = musb->mregs; struct device *dev = musb->controller; - struct platform_device *pdev = to_platform_device(dev); struct dsps_glue *glue = dev_get_drvdata(dev->parent); const struct dsps_musb_wrapper *wrp = glue->wrp; u8 devctl; @@ -250,7 +203,7 @@ static void otg_timer(unsigned long _musb) case OTG_STATE_B_IDLE: devctl = dsps_readb(mregs, MUSB_DEVCTL); if (devctl & MUSB_DEVCTL_BDEVICE) - mod_timer(&glue->timer[pdev->id], + mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ); else musb->xceiv->state = OTG_STATE_A_IDLE; @@ -264,7 +217,6 @@ static void otg_timer(unsigned long _musb) static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) { struct device *dev = musb->controller; - struct platform_device *pdev = to_platform_device(dev); struct dsps_glue *glue = dev_get_drvdata(dev->parent); if (timeout == 0) @@ -275,23 +227,25 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) { dev_dbg(musb->controller, "%s active, deleting timer\n", usb_otg_state_string(musb->xceiv->state)); - del_timer(&glue->timer[pdev->id]); - glue->last_timer[pdev->id] = jiffies; + del_timer(&glue->timer); + glue->last_timer = jiffies; return; } + if (musb->port_mode == MUSB_PORT_MODE_HOST) + return; - if (time_after(glue->last_timer[pdev->id], timeout) && - timer_pending(&glue->timer[pdev->id])) { + if (time_after(glue->last_timer, timeout) && + timer_pending(&glue->timer)) { dev_dbg(musb->controller, "Longer idle timer already pending, ignoring...\n"); return; } - glue->last_timer[pdev->id] = timeout; + glue->last_timer = timeout; dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", usb_otg_state_string(musb->xceiv->state), jiffies_to_msecs(timeout - jiffies)); - mod_timer(&glue->timer[pdev->id], timeout); + mod_timer(&glue->timer, timeout); } static irqreturn_t dsps_interrupt(int irq, void *hci) @@ -299,7 +253,6 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) struct musb *musb = hci; void __iomem *reg_base = musb->ctrl_base; struct device *dev = musb->controller; - struct platform_device *pdev = to_platform_device(dev); struct dsps_glue *glue = dev_get_drvdata(dev->parent); const struct dsps_musb_wrapper *wrp = glue->wrp; unsigned long flags; @@ -319,7 +272,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) /* Get usb core interrupts */ usbintr = dsps_readl(reg_base, wrp->coreintr_status); if (!usbintr && !epintr) - goto eoi; + goto out; musb->int_usb = (usbintr & wrp->usb_bitmap) >> wrp->usb_shift; if (usbintr) @@ -359,15 +312,14 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) */ musb->int_usb &= ~MUSB_INTR_VBUSERROR; musb->xceiv->state = OTG_STATE_A_WAIT_VFALL; - mod_timer(&glue->timer[pdev->id], + mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ); WARNING("VBUS error workaround (delay coming)\n"); } else if (drvvbus) { - musb->is_active = 1; MUSB_HST_MODE(musb); musb->xceiv->otg->default_a = 1; musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; - del_timer(&glue->timer[pdev->id]); + del_timer(&glue->timer); } else { musb->is_active = 0; MUSB_DEV_MODE(musb); @@ -387,16 +339,10 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) if (musb->int_tx || musb->int_rx || musb->int_usb) ret |= musb_interrupt(musb); - eoi: - /* EOI needs to be written for the IRQ to be re-asserted. */ - if (ret == IRQ_HANDLED || epintr || usbintr) - dsps_writel(reg_base, wrp->eoi, 1); - /* Poll for ID change */ if (musb->xceiv->state == OTG_STATE_B_IDLE) - mod_timer(&glue->timer[pdev->id], - jiffies + wrp->poll_seconds * HZ); - + mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ); +out: spin_unlock_irqrestore(&musb->lock, flags); return ret; @@ -405,37 +351,38 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) static int dsps_musb_init(struct musb *musb) { struct device *dev = musb->controller; - struct platform_device *pdev = to_platform_device(dev); struct dsps_glue *glue = dev_get_drvdata(dev->parent); + struct platform_device *parent = to_platform_device(dev->parent); const struct dsps_musb_wrapper *wrp = glue->wrp; - void __iomem *reg_base = musb->ctrl_base; + void __iomem *reg_base; + struct resource *r; u32 rev, val; - int status; - /* mentor core register starts at offset of 0x400 from musb base */ - musb->mregs += wrp->musb_core_offset; + r = platform_get_resource_byname(parent, IORESOURCE_MEM, "control"); + if (!r) + return -EINVAL; + + reg_base = devm_ioremap_resource(dev, r); + if (IS_ERR(reg_base)) + return PTR_ERR(reg_base); + musb->ctrl_base = reg_base; /* NOP driver needs change if supporting dual instance */ - usb_nop_xceiv_register(); - musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(musb->xceiv)) - return -EPROBE_DEFER; + musb->xceiv = devm_usb_get_phy_by_phandle(dev, "phys", 0); + if (IS_ERR(musb->xceiv)) + return PTR_ERR(musb->xceiv); /* Returns zero if e.g. not clocked */ rev = dsps_readl(reg_base, wrp->revision); - if (!rev) { - status = -ENODEV; - goto err0; - } + if (!rev) + return -ENODEV; - setup_timer(&glue->timer[pdev->id], otg_timer, (unsigned long) musb); + usb_phy_init(musb->xceiv); + setup_timer(&glue->timer, otg_timer, (unsigned long) musb); /* Reset the musb */ dsps_writel(reg_base, wrp->control, (1 << wrp->reset)); - /* Start the on-chip PHY and its PLL. */ - musb_dsps_phy_control(glue, pdev->id, 1); - musb->isr = dsps_interrupt; /* reset the otgdisable bit, needed for host mode to work */ @@ -443,31 +390,17 @@ static int dsps_musb_init(struct musb *musb) val &= ~(1 << wrp->otg_disable); dsps_writel(musb->ctrl_base, wrp->phy_utmi, val); - /* clear level interrupt */ - dsps_writel(reg_base, wrp->eoi, 0); - return 0; -err0: - usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); - return status; } static int dsps_musb_exit(struct musb *musb) { struct device *dev = musb->controller; - struct platform_device *pdev = to_platform_device(dev); struct dsps_glue *glue = dev_get_drvdata(dev->parent); - del_timer_sync(&glue->timer[pdev->id]); - - /* Shutdown the on-chip PHY and its PLL. */ - musb_dsps_phy_control(glue, pdev->id, 0); - - /* NOP driver needs change if supporting dual instance */ - usb_put_phy(musb->xceiv); - usb_nop_xceiv_unregister(); + del_timer_sync(&glue->timer); + usb_phy_shutdown(musb->xceiv); return 0; } @@ -483,116 +416,115 @@ static struct musb_platform_ops dsps_ops = { static u64 musb_dmamask = DMA_BIT_MASK(32); -static int dsps_create_musb_pdev(struct dsps_glue *glue, u8 id) +static int get_int_prop(struct device_node *dn, const char *s) { - struct device *dev = glue->dev; - struct platform_device *pdev = to_platform_device(dev); - struct musb_hdrc_platform_data *pdata = dev->platform_data; - struct device_node *np = pdev->dev.of_node; - struct musb_hdrc_config *config; - struct platform_device *musb; - struct resource *res; - struct resource resources[2]; - char res_name[11]; int ret; + u32 val; - resources[0].start = dsps_control_module_phys[id]; - resources[0].end = resources[0].start + SZ_4 - 1; - resources[0].flags = IORESOURCE_MEM; + ret = of_property_read_u32(dn, s, &val); + if (ret) + return 0; + return val; +} - glue->usb_ctrl[id] = devm_ioremap_resource(&pdev->dev, resources); - if (IS_ERR(glue->usb_ctrl[id])) { - ret = PTR_ERR(glue->usb_ctrl[id]); - goto err0; - } +static int get_musb_port_mode(struct device *dev) +{ + enum usb_dr_mode mode; + + mode = of_usb_get_dr_mode(dev->of_node); + switch (mode) { + case USB_DR_MODE_HOST: + return MUSB_PORT_MODE_HOST; + + case USB_DR_MODE_PERIPHERAL: + return MUSB_PORT_MODE_GADGET; + + case USB_DR_MODE_UNKNOWN: + case USB_DR_MODE_OTG: + default: + return MUSB_PORT_MODE_DUAL_ROLE; + }; +} + +static int dsps_create_musb_pdev(struct dsps_glue *glue, + struct platform_device *parent) +{ + struct musb_hdrc_platform_data pdata; + struct resource resources[2]; + struct resource *res; + struct device *dev = &parent->dev; + struct musb_hdrc_config *config; + struct platform_device *musb; + struct device_node *dn = parent->dev.of_node; + int ret; - /* first resource is for usbss, so start index from 1 */ - res = platform_get_resource(pdev, IORESOURCE_MEM, id + 1); + memset(resources, 0, sizeof(resources)); + res = platform_get_resource_byname(parent, IORESOURCE_MEM, "mc"); if (!res) { - dev_err(dev, "failed to get memory for instance %d\n", id); - ret = -ENODEV; - goto err0; + dev_err(dev, "failed to get memory.\n"); + return -EINVAL; } - res->parent = NULL; resources[0] = *res; - /* first resource is for usbss, so start index from 1 */ - res = platform_get_resource(pdev, IORESOURCE_IRQ, id + 1); + res = platform_get_resource_byname(parent, IORESOURCE_IRQ, "mc"); if (!res) { - dev_err(dev, "failed to get irq for instance %d\n", id); - ret = -ENODEV; - goto err0; + dev_err(dev, "failed to get irq.\n"); + return -EINVAL; } - res->parent = NULL; resources[1] = *res; - resources[1].name = "mc"; /* allocate the child platform device */ musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); if (!musb) { dev_err(dev, "failed to allocate musb device\n"); - ret = -ENOMEM; - goto err0; + return -ENOMEM; } musb->dev.parent = dev; musb->dev.dma_mask = &musb_dmamask; musb->dev.coherent_dma_mask = musb_dmamask; + musb->dev.of_node = of_node_get(dn); - glue->musb[id] = musb; + glue->musb = musb; - ret = platform_device_add_resources(musb, resources, 2); + ret = platform_device_add_resources(musb, resources, + ARRAY_SIZE(resources)); if (ret) { dev_err(dev, "failed to add resources\n"); - goto err2; + goto err; } - if (np) { - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) { - dev_err(&pdev->dev, - "failed to allocate musb platform data\n"); - ret = -ENOMEM; - goto err2; - } - - config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL); - if (!config) { - dev_err(&pdev->dev, - "failed to allocate musb hdrc config\n"); - ret = -ENOMEM; - goto err2; - } - - of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps); - of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits); - snprintf(res_name, sizeof(res_name), "port%d-mode", id); - of_property_read_u32(np, res_name, (u32 *)&pdata->mode); - of_property_read_u32(np, "power", (u32 *)&pdata->power); - config->multipoint = of_property_read_bool(np, "multipoint"); - - pdata->config = config; + config = devm_kzalloc(&parent->dev, sizeof(*config), GFP_KERNEL); + if (!config) { + dev_err(dev, "failed to allocate musb hdrc config\n"); + ret = -ENOMEM; + goto err; } + pdata.config = config; + pdata.platform_ops = &dsps_ops; - pdata->platform_ops = &dsps_ops; + config->num_eps = get_int_prop(dn, "mentor,num-eps"); + config->ram_bits = get_int_prop(dn, "mentor,ram-bits"); + pdata.mode = get_musb_port_mode(dev); + /* DT keeps this entry in mA, musb expects it as per USB spec */ + pdata.power = get_int_prop(dn, "mentor,power") / 2; + config->multipoint = of_property_read_bool(dn, "mentor,multipoint"); - ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); + ret = platform_device_add_data(musb, &pdata, sizeof(pdata)); if (ret) { dev_err(dev, "failed to add platform_data\n"); - goto err2; + goto err; } ret = platform_device_add(musb); if (ret) { dev_err(dev, "failed to register musb device\n"); - goto err2; + goto err; } - return 0; -err2: +err: platform_device_put(musb); -err0: return ret; } @@ -601,14 +533,12 @@ static int dsps_probe(struct platform_device *pdev) const struct of_device_id *match; const struct dsps_musb_wrapper *wrp; struct dsps_glue *glue; - struct resource *iomem; - int ret, i; + int ret; match = of_match_node(musb_dsps_of_match, pdev->dev.of_node); if (!match) { dev_err(&pdev->dev, "fail to get matching of_match struct\n"); - ret = -EINVAL; - goto err0; + return -EINVAL; } wrp = match->data; @@ -616,29 +546,13 @@ static int dsps_probe(struct platform_device *pdev) glue = kzalloc(sizeof(*glue), GFP_KERNEL); if (!glue) { dev_err(&pdev->dev, "unable to allocate glue memory\n"); - ret = -ENOMEM; - goto err0; - } - - /* get memory resource */ - iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!iomem) { - dev_err(&pdev->dev, "failed to get usbss mem resourse\n"); - ret = -ENODEV; - goto err1; + return -ENOMEM; } glue->dev = &pdev->dev; + glue->wrp = wrp; - glue->wrp = kmemdup(wrp, sizeof(*wrp), GFP_KERNEL); - if (!glue->wrp) { - dev_err(&pdev->dev, "failed to duplicate wrapper struct memory\n"); - ret = -ENOMEM; - goto err1; - } platform_set_drvdata(pdev, glue); - - /* enable the usbss clocks */ pm_runtime_enable(&pdev->dev); ret = pm_runtime_get_sync(&pdev->dev); @@ -647,17 +561,9 @@ static int dsps_probe(struct platform_device *pdev) goto err2; } - /* create the child platform device for all instances of musb */ - for (i = 0; i < wrp->instances ; i++) { - ret = dsps_create_musb_pdev(glue, i); - if (ret != 0) { - dev_err(&pdev->dev, "failed to create child pdev\n"); - /* release resources of previously created instances */ - for (i--; i >= 0 ; i--) - platform_device_unregister(glue->musb[i]); - goto err3; - } - } + ret = dsps_create_musb_pdev(glue, pdev); + if (ret) + goto err3; return 0; @@ -665,65 +571,27 @@ err3: pm_runtime_put(&pdev->dev); err2: pm_runtime_disable(&pdev->dev); - kfree(glue->wrp); -err1: kfree(glue); -err0: return ret; } + static int dsps_remove(struct platform_device *pdev) { struct dsps_glue *glue = platform_get_drvdata(pdev); - const struct dsps_musb_wrapper *wrp = glue->wrp; - int i; - /* delete the child platform device */ - for (i = 0; i < wrp->instances ; i++) - platform_device_unregister(glue->musb[i]); + platform_device_unregister(glue->musb); /* disable usbss clocks */ pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); - kfree(glue->wrp); kfree(glue); return 0; } -#ifdef CONFIG_PM_SLEEP -static int dsps_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev->parent); - struct dsps_glue *glue = platform_get_drvdata(pdev); - const struct dsps_musb_wrapper *wrp = glue->wrp; - int i; - - for (i = 0; i < wrp->instances; i++) - musb_dsps_phy_control(glue, i, 0); - - return 0; -} - -static int dsps_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev->parent); - struct dsps_glue *glue = platform_get_drvdata(pdev); - const struct dsps_musb_wrapper *wrp = glue->wrp; - int i; - - for (i = 0; i < wrp->instances; i++) - musb_dsps_phy_control(glue, i, 1); - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(dsps_pm_ops, dsps_suspend, dsps_resume); - -static const struct dsps_musb_wrapper ti81xx_driver_data = { +static const struct dsps_musb_wrapper am33xx_driver_data = { .revision = 0x00, .control = 0x14, .status = 0x18, - .eoi = 0x24, .epintr_set = 0x38, .epintr_clear = 0x40, .epintr_status = 0x30, @@ -745,38 +613,23 @@ static const struct dsps_musb_wrapper ti81xx_driver_data = { .rxep_shift = 16, .rxep_mask = 0xfffe, .rxep_bitmap = (0xfffe << 16), - .musb_core_offset = 0x400, .poll_seconds = 2, - .instances = 1, -}; - -static const struct platform_device_id musb_dsps_id_table[] = { - { - .name = "musb-ti81xx", - .driver_data = (kernel_ulong_t) &ti81xx_driver_data, - }, - { }, /* Terminating Entry */ }; -MODULE_DEVICE_TABLE(platform, musb_dsps_id_table); -#ifdef CONFIG_OF static const struct of_device_id musb_dsps_of_match[] = { { .compatible = "ti,musb-am33xx", - .data = (void *) &ti81xx_driver_data, }, + .data = (void *) &am33xx_driver_data, }, { }, }; MODULE_DEVICE_TABLE(of, musb_dsps_of_match); -#endif static struct platform_driver dsps_usbss_driver = { .probe = dsps_probe, .remove = dsps_remove, .driver = { .name = "musb-dsps", - .pm = &dsps_pm_ops, .of_match_table = of_match_ptr(musb_dsps_of_match), }, - .id_table = musb_dsps_id_table, }; MODULE_DESCRIPTION("TI DSPS MUSB Glue Layer"); @@ -784,14 +637,4 @@ MODULE_AUTHOR("Ravi B <ravibabu@ti.com>"); MODULE_AUTHOR("Ajay Kumar Gupta <ajay.gupta@ti.com>"); MODULE_LICENSE("GPL v2"); -static int __init dsps_init(void) -{ - return platform_driver_register(&dsps_usbss_driver); -} -subsys_initcall(dsps_init); - -static void __exit dsps_exit(void) -{ - platform_driver_unregister(&dsps_usbss_driver); -} -module_exit(dsps_exit); +module_platform_driver(dsps_usbss_driver); diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 0414bc19d009..9a08679d204d 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -76,13 +76,21 @@ static inline void map_dma_buffer(struct musb_request *request, return; if (request->request.dma == DMA_ADDR_INVALID) { - request->request.dma = dma_map_single( + dma_addr_t dma_addr; + int ret; + + dma_addr = dma_map_single( musb->controller, request->request.buf, request->request.length, request->tx ? DMA_TO_DEVICE : DMA_FROM_DEVICE); + ret = dma_mapping_error(musb->controller, dma_addr); + if (ret) + return; + + request->request.dma = dma_addr; request->map_state = MUSB_MAPPED; } else { dma_sync_single_for_device(musb->controller, @@ -357,47 +365,49 @@ static void txstate(struct musb *musb, struct musb_request *req) } } -#elif defined(CONFIG_USB_TI_CPPI_DMA) - /* program endpoint CSR first, then setup DMA */ - csr &= ~(MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_TXPKTRDY); - csr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_DMAMODE | - MUSB_TXCSR_MODE; - musb_writew(epio, MUSB_TXCSR, - (MUSB_TXCSR_P_WZC_BITS & ~MUSB_TXCSR_P_UNDERRUN) - | csr); - - /* ensure writebuffer is empty */ - csr = musb_readw(epio, MUSB_TXCSR); - - /* NOTE host side sets DMAENAB later than this; both are - * OK since the transfer dma glue (between CPPI and Mentor - * fifos) just tells CPPI it could start. Data only moves - * to the USB TX fifo when both fifos are ready. - */ - - /* "mode" is irrelevant here; handle terminating ZLPs like - * PIO does, since the hardware RNDIS mode seems unreliable - * except for the last-packet-is-already-short case. - */ - use_dma = use_dma && c->channel_program( - musb_ep->dma, musb_ep->packet_sz, - 0, - request->dma + request->actual, - request_size); - if (!use_dma) { - c->channel_release(musb_ep->dma); - musb_ep->dma = NULL; - csr &= ~MUSB_TXCSR_DMAENAB; - musb_writew(epio, MUSB_TXCSR, csr); - /* invariant: prequest->buf is non-null */ - } -#elif defined(CONFIG_USB_TUSB_OMAP_DMA) - use_dma = use_dma && c->channel_program( - musb_ep->dma, musb_ep->packet_sz, - request->zero, - request->dma + request->actual, - request_size); #endif + if (is_cppi_enabled()) { + /* program endpoint CSR first, then setup DMA */ + csr &= ~(MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_TXPKTRDY); + csr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_DMAMODE | + MUSB_TXCSR_MODE; + musb_writew(epio, MUSB_TXCSR, (MUSB_TXCSR_P_WZC_BITS & + ~MUSB_TXCSR_P_UNDERRUN) | csr); + + /* ensure writebuffer is empty */ + csr = musb_readw(epio, MUSB_TXCSR); + + /* + * NOTE host side sets DMAENAB later than this; both are + * OK since the transfer dma glue (between CPPI and + * Mentor fifos) just tells CPPI it could start. Data + * only moves to the USB TX fifo when both fifos are + * ready. + */ + /* + * "mode" is irrelevant here; handle terminating ZLPs + * like PIO does, since the hardware RNDIS mode seems + * unreliable except for the + * last-packet-is-already-short case. + */ + use_dma = use_dma && c->channel_program( + musb_ep->dma, musb_ep->packet_sz, + 0, + request->dma + request->actual, + request_size); + if (!use_dma) { + c->channel_release(musb_ep->dma); + musb_ep->dma = NULL; + csr &= ~MUSB_TXCSR_DMAENAB; + musb_writew(epio, MUSB_TXCSR, csr); + /* invariant: prequest->buf is non-null */ + } + } else if (tusb_dma_omap()) + use_dma = use_dma && c->channel_program( + musb_ep->dma, musb_ep->packet_sz, + request->zero, + request->dma + request->actual, + request_size); } #endif @@ -1266,7 +1276,8 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req, dev_dbg(musb->controller, "req %p queued to %s while ep %s\n", req, ep->name, "disabled"); status = -ESHUTDOWN; - goto cleanup; + unmap_dma_buffer(request, musb); + goto unlock; } /* add request to the list */ @@ -1276,7 +1287,7 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req, if (!musb_ep->busy && &request->list == musb_ep->req_list.next) musb_ep_restart(musb, request); -cleanup: +unlock: spin_unlock_irqrestore(&musb->lock, lockflags); return status; } @@ -1801,6 +1812,8 @@ err: void musb_gadget_cleanup(struct musb *musb) { + if (musb->port_mode == MUSB_PORT_MODE_HOST) + return; usb_del_gadget_udc(&musb->g); } @@ -1926,7 +1939,8 @@ static int musb_gadget_stop(struct usb_gadget *g, stop_activity(musb, driver); otg_set_peripheral(musb->xceiv->otg, NULL); - dev_dbg(musb->controller, "unregistering driver %s\n", driver->function); + dev_dbg(musb->controller, "unregistering driver %s\n", + driver ? driver->function : "(removed)"); musb->is_active = 0; musb->gadget_driver = NULL; diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index a9695f5a92fb..9a2b8c85f19a 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2628,6 +2628,8 @@ int musb_host_alloc(struct musb *musb) void musb_host_cleanup(struct musb *musb) { + if (musb->port_mode == MUSB_PORT_MODE_GADGET) + return; usb_remove_hcd(musb->hcd); musb->hcd = NULL; } diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c index 3d1fd52a15a9..e8e9f9aab203 100644 --- a/drivers/usb/musb/musbhsdma.c +++ b/drivers/usb/musb/musbhsdma.c @@ -37,18 +37,10 @@ #include "musb_core.h" #include "musbhsdma.h" -static int dma_controller_start(struct dma_controller *c) -{ - /* nothing to do */ - return 0; -} - static void dma_channel_release(struct dma_channel *channel); -static int dma_controller_stop(struct dma_controller *c) +static void dma_controller_stop(struct musb_dma_controller *controller) { - struct musb_dma_controller *controller = container_of(c, - struct musb_dma_controller, controller); struct musb *musb = controller->private_data; struct dma_channel *channel; u8 bit; @@ -67,8 +59,6 @@ static int dma_controller_stop(struct dma_controller *c) } } } - - return 0; } static struct dma_channel *dma_channel_allocate(struct dma_controller *c, @@ -371,8 +361,7 @@ void dma_controller_destroy(struct dma_controller *c) struct musb_dma_controller *controller = container_of(c, struct musb_dma_controller, controller); - if (!controller) - return; + dma_controller_stop(controller); if (controller->irq) free_irq(controller->irq, c); @@ -400,8 +389,6 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba controller->private_data = musb; controller->base = base; - controller->controller.start = dma_controller_start; - controller->controller.stop = dma_controller_stop; controller->controller.channel_alloc = dma_channel_allocate; controller->controller.channel_release = dma_channel_release; controller->controller.channel_program = dma_channel_program; diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index f44e8b5e00c9..59d2245db1c8 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -255,7 +255,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) { struct musb *musb = glue_to_musb(glue); struct device *dev = musb->controller; - struct musb_hdrc_platform_data *pdata = dev->platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(dev); struct omap_musb_board_data *data = pdata->board_data; struct usb_otg *otg = musb->xceiv->otg; @@ -341,7 +341,7 @@ static int omap2430_musb_init(struct musb *musb) int status = 0; struct device *dev = musb->controller; struct omap2430_glue *glue = dev_get_drvdata(dev->parent); - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); struct omap_musb_board_data *data = plat->board_data; /* We require some kind of external transceiver, hooked @@ -412,7 +412,7 @@ static void omap2430_musb_enable(struct musb *musb) unsigned long timeout = jiffies + msecs_to_jiffies(1000); struct device *dev = musb->controller; struct omap2430_glue *glue = dev_get_drvdata(dev->parent); - struct musb_hdrc_platform_data *pdata = dev->platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(dev); struct omap_musb_board_data *data = pdata->board_data; switch (glue->status) { @@ -482,7 +482,7 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32); static int omap2430_probe(struct platform_device *pdev) { struct resource musb_resources[3]; - struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct omap_musb_board_data *data; struct platform_device *musb; struct omap2430_glue *glue; diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 6f8a9ca96ae7..b3b3ed723882 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -25,7 +25,7 @@ #include <linux/io.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include "musb_core.h" @@ -1157,7 +1157,7 @@ static u64 tusb_dmamask = DMA_BIT_MASK(32); static int tusb_probe(struct platform_device *pdev) { struct resource musb_resources[3]; - struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct tusb6010_glue *glue; diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c index 98df17c984a8..b8794eb81e9c 100644 --- a/drivers/usb/musb/tusb6010_omap.c +++ b/drivers/usb/musb/tusb6010_omap.c @@ -66,28 +66,6 @@ struct tusb_omap_dma { unsigned multichannel:1; }; -static int tusb_omap_dma_start(struct dma_controller *c) -{ - struct tusb_omap_dma *tusb_dma; - - tusb_dma = container_of(c, struct tusb_omap_dma, controller); - - /* dev_dbg(musb->controller, "ep%i ch: %i\n", chdat->epnum, chdat->ch); */ - - return 0; -} - -static int tusb_omap_dma_stop(struct dma_controller *c) -{ - struct tusb_omap_dma *tusb_dma; - - tusb_dma = container_of(c, struct tusb_omap_dma, controller); - - /* dev_dbg(musb->controller, "ep%i ch: %i\n", chdat->epnum, chdat->ch); */ - - return 0; -} - /* * Allocate dmareq0 to the current channel unless it's already taken */ @@ -695,8 +673,6 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba tusb_dma->dmareq = -1; tusb_dma->sync_dev = -1; - tusb_dma->controller.start = tusb_omap_dma_start; - tusb_dma->controller.stop = tusb_omap_dma_stop; tusb_dma->controller.channel_alloc = tusb_omap_dma_allocate; tusb_dma->controller.channel_release = tusb_omap_dma_release; tusb_dma->controller.channel_program = tusb_omap_dma_program; diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index fce71b605936..59256b12f746 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -227,7 +227,7 @@ ux500_of_probe(struct platform_device *pdev, struct device_node *np) static int ux500_probe(struct platform_device *pdev) { struct resource musb_resources[2]; - struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct device_node *np = pdev->dev.of_node; struct platform_device *musb; struct ux500_glue *glue; diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c index bfb7a65d83cc..3700e9713258 100644 --- a/drivers/usb/musb/ux500_dma.c +++ b/drivers/usb/musb/ux500_dma.c @@ -254,10 +254,8 @@ static int ux500_dma_channel_abort(struct dma_channel *channel) return 0; } -static int ux500_dma_controller_stop(struct dma_controller *c) +static void ux500_dma_controller_stop(struct ux500_dma_controller *controller) { - struct ux500_dma_controller *controller = container_of(c, - struct ux500_dma_controller, controller); struct ux500_dma_channel *ux500_channel; struct dma_channel *channel; u8 ch_num; @@ -281,18 +279,14 @@ static int ux500_dma_controller_stop(struct dma_controller *c) if (ux500_channel->dma_chan) dma_release_channel(ux500_channel->dma_chan); } - - return 0; } -static int ux500_dma_controller_start(struct dma_controller *c) +static int ux500_dma_controller_start(struct ux500_dma_controller *controller) { - struct ux500_dma_controller *controller = container_of(c, - struct ux500_dma_controller, controller); struct ux500_dma_channel *ux500_channel = NULL; struct musb *musb = controller->private_data; struct device *dev = musb->controller; - struct musb_hdrc_platform_data *plat = dev->platform_data; + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev); struct ux500_musb_board_data *data; struct dma_channel *dma_channel = NULL; char **chan_names; @@ -339,7 +333,9 @@ static int ux500_dma_controller_start(struct dma_controller *c) if (!ux500_channel->dma_chan) ux500_channel->dma_chan = dma_request_channel(mask, - data->dma_filter, + data ? + data->dma_filter : + NULL, param_array[ch_num]); if (!ux500_channel->dma_chan) { @@ -347,7 +343,7 @@ static int ux500_dma_controller_start(struct dma_controller *c) dir, ch_num); /* Release already allocated channels */ - ux500_dma_controller_stop(c); + ux500_dma_controller_stop(controller); return -EBUSY; } @@ -369,6 +365,7 @@ void dma_controller_destroy(struct dma_controller *c) struct ux500_dma_controller *controller = container_of(c, struct ux500_dma_controller, controller); + ux500_dma_controller_stop(controller); kfree(controller); } @@ -378,6 +375,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, struct ux500_dma_controller *controller; struct platform_device *pdev = to_platform_device(musb->controller); struct resource *iomem; + int ret; controller = kzalloc(sizeof(*controller), GFP_KERNEL); if (!controller) @@ -394,14 +392,15 @@ struct dma_controller *dma_controller_create(struct musb *musb, controller->phy_base = (dma_addr_t) iomem->start; - controller->controller.start = ux500_dma_controller_start; - controller->controller.stop = ux500_dma_controller_stop; controller->controller.channel_alloc = ux500_dma_channel_allocate; controller->controller.channel_release = ux500_dma_channel_release; controller->controller.channel_program = ux500_dma_channel_program; controller->controller.channel_abort = ux500_dma_channel_abort; controller->controller.is_compatible = ux500_dma_is_compatible; + ret = ux500_dma_controller_start(controller); + if (ret) + goto plat_get_fail; return &controller->controller; plat_get_fail: diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 3622fff8b798..d5589f9c60a9 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -1,22 +1,10 @@ # # Physical Layer USB driver configuration # -menuconfig USB_PHY - bool "USB Physical Layer drivers" - help - Most USB controllers have the physical layer signalling part - (commonly called a PHY) built in. However, dual-role devices - (a.k.a. USB on-the-go) which support being USB master or slave - with the same connector often use an external PHY. - - The drivers in this submenu add support for such PHY devices. - They are not needed for standard master-only (or the vast - majority of slave-only) USB interfaces. +menu "USB Physical Layer drivers" - If you're not sure if this applies to you, it probably doesn't; - say N here. - -if USB_PHY +config USB_PHY + def_bool n # # USB Transceiver Drivers @@ -24,6 +12,7 @@ if USB_PHY config AB8500_USB tristate "AB8500 USB Transceiver Driver" depends on AB8500_CORE + select USB_PHY help Enable this to support the USB OTG transceiver in AB8500 chip. This transceiver supports high and full speed devices plus, @@ -33,12 +22,14 @@ config FSL_USB2_OTG bool "Freescale USB OTG Transceiver Driver" depends on USB_EHCI_FSL && USB_FSL_USB2 && PM_RUNTIME select USB_OTG + select USB_PHY help Enable this to support Freescale USB OTG transceiver. config ISP1301_OMAP tristate "Philips ISP1301 with OMAP OTG" depends on I2C && ARCH_OMAP_OTG + select USB_PHY help If you say yes here you get support for the Philips ISP1301 USB-On-The-Go transceiver working with the OMAP OTG controller. @@ -52,12 +43,14 @@ config ISP1301_OMAP config MV_U3D_PHY bool "Marvell USB 3.0 PHY controller Driver" depends on CPU_MMP3 + select USB_PHY help Enable this to support Marvell USB 3.0 phy controller for Marvell SoC. config NOP_USB_XCEIV tristate "NOP USB Transceiver Driver" + select USB_PHY help This driver is to be used by all the usb transceiver which are either built-in with usb ip or which are autonomous and doesn't require any @@ -65,6 +58,7 @@ config NOP_USB_XCEIV config OMAP_CONTROL_USB tristate "OMAP CONTROL USB Driver" + depends on ARCH_OMAP2PLUS || COMPILE_TEST help Enable this to add support for the USB part present in the control module. This driver has API to power on the USB2 PHY and to write to @@ -76,6 +70,7 @@ config OMAP_USB2 tristate "OMAP USB2 PHY Driver" depends on ARCH_OMAP2PLUS select OMAP_CONTROL_USB + select USB_PHY help Enable this to support the transceiver that is part of SOC. This driver takes care of all the PHY functionality apart from comparator. @@ -84,13 +79,27 @@ config OMAP_USB2 config OMAP_USB3 tristate "OMAP USB3 PHY Driver" + depends on ARCH_OMAP2PLUS || COMPILE_TEST select OMAP_CONTROL_USB + select USB_PHY help Enable this to support the USB3 PHY that is part of SOC. This driver takes care of all the PHY functionality apart from comparator. This driver interacts with the "OMAP Control USB Driver" to power on/off the PHY. +config AM335X_CONTROL_USB + tristate + +config AM335X_PHY_USB + tristate "AM335x USB PHY Driver" + select USB_PHY + select AM335X_CONTROL_USB + select NOP_USB_XCEIV + help + This driver provides PHY support for that phy which part for the + AM335x SoC. + config SAMSUNG_USBPHY tristate help @@ -101,6 +110,7 @@ config SAMSUNG_USBPHY config SAMSUNG_USB2PHY tristate "Samsung USB 2.0 PHY controller Driver" select SAMSUNG_USBPHY + select USB_PHY help Enable this to support Samsung USB 2.0 (High Speed) PHY controller driver for Samsung SoCs. @@ -108,6 +118,7 @@ config SAMSUNG_USB2PHY config SAMSUNG_USB3PHY tristate "Samsung USB 3.0 PHY controller Driver" select SAMSUNG_USBPHY + select USB_PHY help Enable this to support Samsung USB 3.0 (Super Speed) phy controller for samsung SoCs. @@ -115,6 +126,7 @@ config SAMSUNG_USB3PHY config TWL4030_USB tristate "TWL4030 USB Transceiver Driver" depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS + select USB_PHY help Enable this to support the USB OTG transceiver on TWL4030 family chips (including the TWL5030 and TPS659x0 devices). @@ -135,6 +147,7 @@ config TWL6030_USB config USB_GPIO_VBUS tristate "GPIO based peripheral-only VBUS sensing 'transceiver'" depends on GPIOLIB + select USB_PHY help Provides simple GPIO VBUS sensing for controllers with an internal transceiver via the usb_phy interface, and @@ -145,6 +158,7 @@ config USB_ISP1301 tristate "NXP ISP1301 USB transceiver support" depends on USB || USB_GADGET depends on I2C + select USB_PHY help Say Y here to add support for the NXP ISP1301 USB transceiver driver. This chip is typically used as USB transceiver for USB host, gadget @@ -156,6 +170,7 @@ config USB_ISP1301 config USB_MSM_OTG tristate "OTG support for Qualcomm on-chip USB controller" depends on (USB || USB_GADGET) && ARCH_MSM + select USB_PHY help Enable this to support the USB OTG transceiver on MSM chips. It handles PHY initialization, clock management, and workarounds @@ -169,6 +184,7 @@ config USB_MV_OTG tristate "Marvell USB OTG support" depends on USB_EHCI_MV && USB_MV_UDC && PM_RUNTIME select USB_OTG + select USB_PHY help Say Y here if you want to build Marvell USB OTG transciever driver in kernel (including PXA and MMP series). This driver @@ -180,6 +196,7 @@ config USB_MXS_PHY tristate "Freescale MXS USB PHY support" depends on ARCH_MXC || ARCH_MXS select STMP_DEVICE + select USB_PHY help Enable this to support the Freescale MXS USB PHY. @@ -188,6 +205,7 @@ config USB_MXS_PHY config USB_RCAR_PHY tristate "Renesas R-Car USB PHY support" depends on USB || USB_GADGET + select USB_PHY help Say Y here to add support for the Renesas R-Car USB common PHY driver. This chip is typically used as USB PHY for USB host, gadget. @@ -210,4 +228,4 @@ config USB_ULPI_VIEWPORT Provides read/write operations to the ULPI phy register set for controllers with a viewport register (e.g. Chipidea/ARC controllers). -endif # USB_PHY +endmenu diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index 070eca3af18b..2135e85f46ed 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -1,9 +1,6 @@ # # Makefile for physical layer USB drivers # - -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG - obj-$(CONFIG_USB_PHY) += phy.o obj-$(CONFIG_OF) += of.o @@ -14,8 +11,10 @@ phy-fsl-usb2-objs := phy-fsl-usb.o phy-fsm-usb.o obj-$(CONFIG_FSL_USB2_OTG) += phy-fsl-usb2.o obj-$(CONFIG_ISP1301_OMAP) += phy-isp1301-omap.o obj-$(CONFIG_MV_U3D_PHY) += phy-mv-u3d-usb.o -obj-$(CONFIG_NOP_USB_XCEIV) += phy-nop.o +obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o obj-$(CONFIG_OMAP_CONTROL_USB) += phy-omap-control.o +obj-$(CONFIG_AM335X_CONTROL_USB) += phy-am335x-control.o +obj-$(CONFIG_AM335X_PHY_USB) += phy-am335x.o obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o obj-$(CONFIG_OMAP_USB3) += phy-omap-usb3.o obj-$(CONFIG_SAMSUNG_USBPHY) += phy-samsung-usb.o diff --git a/drivers/usb/phy/am35x-phy-control.h b/drivers/usb/phy/am35x-phy-control.h new file mode 100644 index 000000000000..b96594d1962c --- /dev/null +++ b/drivers/usb/phy/am35x-phy-control.h @@ -0,0 +1,21 @@ +#ifndef _AM335x_PHY_CONTROL_H_ +#define _AM335x_PHY_CONTROL_H_ + +struct phy_control { + void (*phy_power)(struct phy_control *phy_ctrl, u32 id, bool on); + void (*phy_wkup)(struct phy_control *phy_ctrl, u32 id, bool on); +}; + +static inline void phy_ctrl_power(struct phy_control *phy_ctrl, u32 id, bool on) +{ + phy_ctrl->phy_power(phy_ctrl, id, on); +} + +static inline void phy_ctrl_wkup(struct phy_control *phy_ctrl, u32 id, bool on) +{ + phy_ctrl->phy_wkup(phy_ctrl, id, on); +} + +struct phy_control *am335x_get_phy_control(struct device *dev); + +#endif diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c new file mode 100644 index 000000000000..22cf07d62e4c --- /dev/null +++ b/drivers/usb/phy/phy-am335x-control.c @@ -0,0 +1,137 @@ +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/io.h> + +struct phy_control { + void (*phy_power)(struct phy_control *phy_ctrl, u32 id, bool on); + void (*phy_wkup)(struct phy_control *phy_ctrl, u32 id, bool on); +}; + +struct am335x_control_usb { + struct device *dev; + void __iomem *phy_reg; + void __iomem *wkup; + spinlock_t lock; + struct phy_control phy_ctrl; +}; + +#define AM335X_USB0_CTRL 0x0 +#define AM335X_USB1_CTRL 0x8 +#define AM335x_USB_WKUP 0x0 + +#define USBPHY_CM_PWRDN (1 << 0) +#define USBPHY_OTG_PWRDN (1 << 1) +#define USBPHY_OTGVDET_EN (1 << 19) +#define USBPHY_OTGSESSEND_EN (1 << 20) + +static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id, bool on) +{ + struct am335x_control_usb *usb_ctrl; + u32 val; + u32 reg; + + usb_ctrl = container_of(phy_ctrl, struct am335x_control_usb, phy_ctrl); + + switch (id) { + case 0: + reg = AM335X_USB0_CTRL; + break; + case 1: + reg = AM335X_USB1_CTRL; + break; + default: + WARN_ON(1); + return; + } + + val = readl(usb_ctrl->phy_reg + reg); + if (on) { + val &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN); + val |= USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN; + } else { + val |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN; + } + + writel(val, usb_ctrl->phy_reg + reg); +} + +static const struct phy_control ctrl_am335x = { + .phy_power = am335x_phy_power, +}; + +static const struct of_device_id omap_control_usb_id_table[] = { + { .compatible = "ti,am335x-usb-ctrl-module", .data = &ctrl_am335x }, + {} +}; +MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); + +static struct platform_driver am335x_control_driver; +static int match(struct device *dev, void *data) +{ + struct device_node *node = (struct device_node *)data; + return dev->of_node == node && + dev->driver == &am335x_control_driver.driver; +} + +struct phy_control *am335x_get_phy_control(struct device *dev) +{ + struct device_node *node; + struct am335x_control_usb *ctrl_usb; + + node = of_parse_phandle(dev->of_node, "ti,ctrl_mod", 0); + if (!node) + return NULL; + + dev = bus_find_device(&platform_bus_type, NULL, node, match); + ctrl_usb = dev_get_drvdata(dev); + if (!ctrl_usb) + return NULL; + return &ctrl_usb->phy_ctrl; +} +EXPORT_SYMBOL_GPL(am335x_get_phy_control); + +static int am335x_control_usb_probe(struct platform_device *pdev) +{ + struct resource *res; + struct am335x_control_usb *ctrl_usb; + const struct of_device_id *of_id; + const struct phy_control *phy_ctrl; + + of_id = of_match_node(omap_control_usb_id_table, pdev->dev.of_node); + if (!of_id) + return -EINVAL; + + phy_ctrl = of_id->data; + + ctrl_usb = devm_kzalloc(&pdev->dev, sizeof(*ctrl_usb), GFP_KERNEL); + if (!ctrl_usb) { + dev_err(&pdev->dev, "unable to alloc memory for control usb\n"); + return -ENOMEM; + } + + ctrl_usb->dev = &pdev->dev; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_ctrl"); + ctrl_usb->phy_reg = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(ctrl_usb->phy_reg)) + return PTR_ERR(ctrl_usb->phy_reg); + spin_lock_init(&ctrl_usb->lock); + ctrl_usb->phy_ctrl = *phy_ctrl; + + dev_set_drvdata(ctrl_usb->dev, ctrl_usb); + return 0; +} + +static struct platform_driver am335x_control_driver = { + .probe = am335x_control_usb_probe, + .driver = { + .name = "am335x-control-usb", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(omap_control_usb_id_table), + }, +}; + +module_platform_driver(am335x_control_driver); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c new file mode 100644 index 000000000000..c4d614d1f173 --- /dev/null +++ b/drivers/usb/phy/phy-am335x.c @@ -0,0 +1,99 @@ +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/usb/otg.h> +#include <linux/usb/usb_phy_gen_xceiv.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <linux/regulator/consumer.h> +#include <linux/of.h> +#include <linux/of_address.h> + +#include "am35x-phy-control.h" +#include "phy-generic.h" + +struct am335x_phy { + struct usb_phy_gen_xceiv usb_phy_gen; + struct phy_control *phy_ctrl; + int id; +}; + +static int am335x_init(struct usb_phy *phy) +{ + struct am335x_phy *am_phy = dev_get_drvdata(phy->dev); + + phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, true); + return 0; +} + +static void am335x_shutdown(struct usb_phy *phy) +{ + struct am335x_phy *am_phy = dev_get_drvdata(phy->dev); + + phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false); +} + +static int am335x_phy_probe(struct platform_device *pdev) +{ + struct am335x_phy *am_phy; + struct device *dev = &pdev->dev; + int ret; + + am_phy = devm_kzalloc(dev, sizeof(*am_phy), GFP_KERNEL); + if (!am_phy) + return -ENOMEM; + + am_phy->phy_ctrl = am335x_get_phy_control(dev); + if (!am_phy->phy_ctrl) + return -EPROBE_DEFER; + am_phy->id = of_alias_get_id(pdev->dev.of_node, "phy"); + if (am_phy->id < 0) { + dev_err(&pdev->dev, "Missing PHY id: %d\n", am_phy->id); + return am_phy->id; + } + + ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, + USB_PHY_TYPE_USB2, 0, false, false); + if (ret) + return ret; + + ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy); + if (ret) + goto err_add; + am_phy->usb_phy_gen.phy.init = am335x_init; + am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown; + + platform_set_drvdata(pdev, am_phy); + return 0; + +err_add: + usb_phy_gen_cleanup_phy(&am_phy->usb_phy_gen); + return ret; +} + +static int am335x_phy_remove(struct platform_device *pdev) +{ + struct am335x_phy *am_phy = platform_get_drvdata(pdev); + + usb_remove_phy(&am_phy->usb_phy_gen.phy); + return 0; +} + +static const struct of_device_id am335x_phy_ids[] = { + { .compatible = "ti,am335x-usb-phy" }, + { } +}; +MODULE_DEVICE_TABLE(of, am335x_phy_ids); + +static struct platform_driver am335x_phy_driver = { + .probe = am335x_phy_probe, + .remove = am335x_phy_remove, + .driver = { + .name = "am335x-phy-driver", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(am335x_phy_ids), + }, +}; + +module_platform_driver(am335x_phy_driver); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index e771bafb9f1d..fa7c9f9628b5 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -611,7 +611,7 @@ static int fsl_otg_set_peripheral(struct usb_otg *otg, otg_dev->fsm.b_bus_req = 1; /* start the gadget right away if the ID pin says Mini-B */ - DBG("ID pin=%d\n", otg_dev->fsm.id); + pr_debug("ID pin=%d\n", otg_dev->fsm.id); if (otg_dev->fsm.id == 1) { fsl_otg_start_host(&otg_dev->fsm, 0); otg_drv_vbus(&otg_dev->fsm, 0); @@ -684,7 +684,7 @@ static int fsl_otg_start_hnp(struct usb_otg *otg) if (otg_dev != fsl_otg_dev) return -ENODEV; - DBG("start_hnp...n"); + pr_debug("start_hnp...\n"); /* clear a_bus_req to enter a_suspend state */ otg_dev->fsm.a_bus_req = 0; @@ -834,7 +834,7 @@ int usb_otg_start(struct platform_device *pdev) int status; struct resource *res; u32 temp; - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); p_otg = container_of(otg_trans, struct fsl_otg, phy); fsm = &p_otg->fsm; @@ -941,7 +941,7 @@ int usb_otg_start(struct platform_device *pdev) p_otg->fsm.id = 0; } - DBG("initial ID pin=%d\n", p_otg->fsm.id); + pr_debug("initial ID pin=%d\n", p_otg->fsm.id); /* enable OTG ID pin interrupt */ temp = fsl_readl(&p_otg->dr_mem_map->otgsc); @@ -1105,7 +1105,7 @@ static int fsl_otg_probe(struct platform_device *pdev) { int ret; - if (!pdev->dev.platform_data) + if (!dev_get_platdata(&pdev->dev)) return -ENODEV; /* configure the OTG */ @@ -1137,7 +1137,7 @@ static int fsl_otg_probe(struct platform_device *pdev) static int fsl_otg_remove(struct platform_device *pdev) { - struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); usb_remove_phy(&fsl_otg_dev->phy); free_irq(fsl_otg_dev->irq, fsl_otg_dev); diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h index ca266280895d..e1859b8ef567 100644 --- a/drivers/usb/phy/phy-fsl-usb.h +++ b/drivers/usb/phy/phy-fsl-usb.h @@ -15,7 +15,7 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include "otg_fsm.h" +#include "phy-fsm-usb.h" #include <linux/usb/otg.h> #include <linux/ioctl.h> diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index c520b3548e7c..7f4596606e18 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -29,7 +29,7 @@ #include <linux/usb/gadget.h> #include <linux/usb/otg.h> -#include "phy-otg-fsm.h" +#include "phy-fsm-usb.h" /* Change USB protocol when there is a protocol change */ static int otg_set_protocol(struct otg_fsm *fsm, int protocol) diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h index c30a2e1d9e46..fbe586206f33 100644 --- a/drivers/usb/phy/phy-fsm-usb.h +++ b/drivers/usb/phy/phy-fsm-usb.h @@ -15,18 +15,11 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#undef DEBUG #undef VERBOSE -#ifdef DEBUG -#define DBG(fmt, args...) printk(KERN_DEBUG "[%s] " fmt , \ - __func__, ## args) -#else -#define DBG(fmt, args...) do {} while (0) -#endif - #ifdef VERBOSE -#define VDBG DBG +#define VDBG(fmt, args...) pr_debug("[%s] " fmt , \ + __func__, ## args) #else #define VDBG(stuff...) do {} while (0) #endif diff --git a/drivers/usb/phy/phy-nop.c b/drivers/usb/phy/phy-generic.c index 55445e5d72e5..efe59f3f7fda 100644 --- a/drivers/usb/phy/phy-nop.c +++ b/drivers/usb/phy/phy-generic.c @@ -30,19 +30,13 @@ #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/usb/otg.h> -#include <linux/usb/nop-usb-xceiv.h> +#include <linux/usb/usb_phy_gen_xceiv.h> #include <linux/slab.h> #include <linux/clk.h> #include <linux/regulator/consumer.h> #include <linux/of.h> -struct nop_usb_xceiv { - struct usb_phy phy; - struct device *dev; - struct clk *clk; - struct regulator *vcc; - struct regulator *reset; -}; +#include "phy-generic.h" static struct platform_device *pd; @@ -50,9 +44,9 @@ void usb_nop_xceiv_register(void) { if (pd) return; - pd = platform_device_register_simple("nop_usb_xceiv", -1, NULL, 0); + pd = platform_device_register_simple("usb_phy_gen_xceiv", -1, NULL, 0); if (!pd) { - printk(KERN_ERR "Unable to register usb nop transceiver\n"); + pr_err("Unable to register generic usb transceiver\n"); return; } } @@ -70,9 +64,9 @@ static int nop_set_suspend(struct usb_phy *x, int suspend) return 0; } -static int nop_init(struct usb_phy *phy) +int usb_gen_phy_init(struct usb_phy *phy) { - struct nop_usb_xceiv *nop = dev_get_drvdata(phy->dev); + struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev); if (!IS_ERR(nop->vcc)) { if (regulator_enable(nop->vcc)) @@ -90,10 +84,11 @@ static int nop_init(struct usb_phy *phy) return 0; } +EXPORT_SYMBOL_GPL(usb_gen_phy_init); -static void nop_shutdown(struct usb_phy *phy) +void usb_gen_phy_shutdown(struct usb_phy *phy) { - struct nop_usb_xceiv *nop = dev_get_drvdata(phy->dev); + struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev); if (!IS_ERR(nop->reset)) { /* Assert RESET */ @@ -109,6 +104,7 @@ static void nop_shutdown(struct usb_phy *phy) dev_err(phy->dev, "Failed to disable power\n"); } } +EXPORT_SYMBOL_GPL(usb_gen_phy_shutdown); static int nop_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget) { @@ -139,52 +135,27 @@ static int nop_set_host(struct usb_otg *otg, struct usb_bus *host) return 0; } -static int nop_usb_xceiv_probe(struct platform_device *pdev) +int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, + enum usb_phy_type type, u32 clk_rate, bool needs_vcc, + bool needs_reset) { - struct device *dev = &pdev->dev; - struct nop_usb_xceiv_platform_data *pdata = pdev->dev.platform_data; - struct nop_usb_xceiv *nop; - enum usb_phy_type type = USB_PHY_TYPE_USB2; int err; - u32 clk_rate = 0; - bool needs_vcc = false; - bool needs_reset = false; - - nop = devm_kzalloc(&pdev->dev, sizeof(*nop), GFP_KERNEL); - if (!nop) - return -ENOMEM; - nop->phy.otg = devm_kzalloc(&pdev->dev, sizeof(*nop->phy.otg), - GFP_KERNEL); + nop->phy.otg = devm_kzalloc(dev, sizeof(*nop->phy.otg), + GFP_KERNEL); if (!nop->phy.otg) return -ENOMEM; - if (dev->of_node) { - struct device_node *node = dev->of_node; - - if (of_property_read_u32(node, "clock-frequency", &clk_rate)) - clk_rate = 0; - - needs_vcc = of_property_read_bool(node, "vcc-supply"); - needs_reset = of_property_read_bool(node, "reset-supply"); - - } else if (pdata) { - type = pdata->type; - clk_rate = pdata->clk_rate; - needs_vcc = pdata->needs_vcc; - needs_reset = pdata->needs_reset; - } - - nop->clk = devm_clk_get(&pdev->dev, "main_clk"); + nop->clk = devm_clk_get(dev, "main_clk"); if (IS_ERR(nop->clk)) { - dev_dbg(&pdev->dev, "Can't get phy clock: %ld\n", + dev_dbg(dev, "Can't get phy clock: %ld\n", PTR_ERR(nop->clk)); } if (!IS_ERR(nop->clk) && clk_rate) { err = clk_set_rate(nop->clk, clk_rate); if (err) { - dev_err(&pdev->dev, "Error setting clock rate\n"); + dev_err(dev, "Error setting clock rate\n"); return err; } } @@ -192,33 +163,31 @@ static int nop_usb_xceiv_probe(struct platform_device *pdev) if (!IS_ERR(nop->clk)) { err = clk_prepare(nop->clk); if (err) { - dev_err(&pdev->dev, "Error preparing clock\n"); + dev_err(dev, "Error preparing clock\n"); return err; } } - nop->vcc = devm_regulator_get(&pdev->dev, "vcc"); + nop->vcc = devm_regulator_get(dev, "vcc"); if (IS_ERR(nop->vcc)) { - dev_dbg(&pdev->dev, "Error getting vcc regulator: %ld\n", + dev_dbg(dev, "Error getting vcc regulator: %ld\n", PTR_ERR(nop->vcc)); if (needs_vcc) return -EPROBE_DEFER; } - nop->reset = devm_regulator_get(&pdev->dev, "reset"); + nop->reset = devm_regulator_get(dev, "reset"); if (IS_ERR(nop->reset)) { - dev_dbg(&pdev->dev, "Error getting reset regulator: %ld\n", + dev_dbg(dev, "Error getting reset regulator: %ld\n", PTR_ERR(nop->reset)); if (needs_reset) return -EPROBE_DEFER; } - nop->dev = &pdev->dev; + nop->dev = dev; nop->phy.dev = nop->dev; nop->phy.label = "nop-xceiv"; nop->phy.set_suspend = nop_set_suspend; - nop->phy.init = nop_init; - nop->phy.shutdown = nop_shutdown; nop->phy.state = OTG_STATE_UNDEFINED; nop->phy.type = type; @@ -226,6 +195,59 @@ static int nop_usb_xceiv_probe(struct platform_device *pdev) nop->phy.otg->set_host = nop_set_host; nop->phy.otg->set_peripheral = nop_set_peripheral; + ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier); + return 0; +} +EXPORT_SYMBOL_GPL(usb_phy_gen_create_phy); + +void usb_phy_gen_cleanup_phy(struct usb_phy_gen_xceiv *nop) +{ + if (!IS_ERR(nop->clk)) + clk_unprepare(nop->clk); +} +EXPORT_SYMBOL_GPL(usb_phy_gen_cleanup_phy); + +static int usb_phy_gen_xceiv_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct usb_phy_gen_xceiv_platform_data *pdata = + dev_get_platdata(&pdev->dev); + struct usb_phy_gen_xceiv *nop; + enum usb_phy_type type = USB_PHY_TYPE_USB2; + int err; + u32 clk_rate = 0; + bool needs_vcc = false; + bool needs_reset = false; + + if (dev->of_node) { + struct device_node *node = dev->of_node; + + if (of_property_read_u32(node, "clock-frequency", &clk_rate)) + clk_rate = 0; + + needs_vcc = of_property_read_bool(node, "vcc-supply"); + needs_reset = of_property_read_bool(node, "reset-supply"); + + } else if (pdata) { + type = pdata->type; + clk_rate = pdata->clk_rate; + needs_vcc = pdata->needs_vcc; + needs_reset = pdata->needs_reset; + } + + nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL); + if (!nop) + return -ENOMEM; + + + err = usb_phy_gen_create_phy(dev, nop, type, clk_rate, needs_vcc, + needs_reset); + if (err) + return err; + + nop->phy.init = usb_gen_phy_init; + nop->phy.shutdown = usb_gen_phy_shutdown; + err = usb_add_phy_dev(&nop->phy); if (err) { dev_err(&pdev->dev, "can't register transceiver, err: %d\n", @@ -235,23 +257,18 @@ static int nop_usb_xceiv_probe(struct platform_device *pdev) platform_set_drvdata(pdev, nop); - ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier); - return 0; err_add: - if (!IS_ERR(nop->clk)) - clk_unprepare(nop->clk); + usb_phy_gen_cleanup_phy(nop); return err; } -static int nop_usb_xceiv_remove(struct platform_device *pdev) +static int usb_phy_gen_xceiv_remove(struct platform_device *pdev) { - struct nop_usb_xceiv *nop = platform_get_drvdata(pdev); - - if (!IS_ERR(nop->clk)) - clk_unprepare(nop->clk); + struct usb_phy_gen_xceiv *nop = platform_get_drvdata(pdev); + usb_phy_gen_cleanup_phy(nop); usb_remove_phy(&nop->phy); return 0; @@ -264,29 +281,29 @@ static const struct of_device_id nop_xceiv_dt_ids[] = { MODULE_DEVICE_TABLE(of, nop_xceiv_dt_ids); -static struct platform_driver nop_usb_xceiv_driver = { - .probe = nop_usb_xceiv_probe, - .remove = nop_usb_xceiv_remove, +static struct platform_driver usb_phy_gen_xceiv_driver = { + .probe = usb_phy_gen_xceiv_probe, + .remove = usb_phy_gen_xceiv_remove, .driver = { - .name = "nop_usb_xceiv", + .name = "usb_phy_gen_xceiv", .owner = THIS_MODULE, .of_match_table = nop_xceiv_dt_ids, }, }; -static int __init nop_usb_xceiv_init(void) +static int __init usb_phy_gen_xceiv_init(void) { - return platform_driver_register(&nop_usb_xceiv_driver); + return platform_driver_register(&usb_phy_gen_xceiv_driver); } -subsys_initcall(nop_usb_xceiv_init); +subsys_initcall(usb_phy_gen_xceiv_init); -static void __exit nop_usb_xceiv_exit(void) +static void __exit usb_phy_gen_xceiv_exit(void) { - platform_driver_unregister(&nop_usb_xceiv_driver); + platform_driver_unregister(&usb_phy_gen_xceiv_driver); } -module_exit(nop_usb_xceiv_exit); +module_exit(usb_phy_gen_xceiv_exit); -MODULE_ALIAS("platform:nop_usb_xceiv"); +MODULE_ALIAS("platform:usb_phy_gen_xceiv"); MODULE_AUTHOR("Texas Instruments Inc"); MODULE_DESCRIPTION("NOP USB Transceiver driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/phy/phy-generic.h b/drivers/usb/phy/phy-generic.h new file mode 100644 index 000000000000..61687d5a965b --- /dev/null +++ b/drivers/usb/phy/phy-generic.h @@ -0,0 +1,20 @@ +#ifndef _PHY_GENERIC_H_ +#define _PHY_GENERIC_H_ + +struct usb_phy_gen_xceiv { + struct usb_phy phy; + struct device *dev; + struct clk *clk; + struct regulator *vcc; + struct regulator *reset; +}; + +int usb_gen_phy_init(struct usb_phy *phy); +void usb_gen_phy_shutdown(struct usb_phy *phy); + +int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, + enum usb_phy_type type, u32 clk_rate, bool needs_vcc, + bool needs_reset); +void usb_phy_gen_cleanup_phy(struct usb_phy_gen_xceiv *nop); + +#endif diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c index 8443335c2ea0..b2f29c9aebbf 100644 --- a/drivers/usb/phy/phy-gpio-vbus-usb.c +++ b/drivers/usb/phy/phy-gpio-vbus-usb.c @@ -101,7 +101,7 @@ static void gpio_vbus_work(struct work_struct *work) { struct gpio_vbus_data *gpio_vbus = container_of(work, struct gpio_vbus_data, work.work); - struct gpio_vbus_mach_info *pdata = gpio_vbus->dev->platform_data; + struct gpio_vbus_mach_info *pdata = dev_get_platdata(gpio_vbus->dev); int gpio, status, vbus; if (!gpio_vbus->phy.otg->gadget) @@ -155,7 +155,7 @@ static void gpio_vbus_work(struct work_struct *work) static irqreturn_t gpio_vbus_irq(int irq, void *data) { struct platform_device *pdev = data; - struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data; + struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev); struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev); struct usb_otg *otg = gpio_vbus->phy.otg; @@ -182,7 +182,7 @@ static int gpio_vbus_set_peripheral(struct usb_otg *otg, gpio_vbus = container_of(otg->phy, struct gpio_vbus_data, phy); pdev = to_platform_device(gpio_vbus->dev); - pdata = gpio_vbus->dev->platform_data; + pdata = dev_get_platdata(gpio_vbus->dev); gpio = pdata->gpio_pullup; if (!gadget) { @@ -243,7 +243,7 @@ static int gpio_vbus_set_suspend(struct usb_phy *phy, int suspend) static int __init gpio_vbus_probe(struct platform_device *pdev) { - struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data; + struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev); struct gpio_vbus_data *gpio_vbus; struct resource *res; int err, gpio, irq; @@ -352,7 +352,7 @@ err_gpio: static int __exit gpio_vbus_remove(struct platform_device *pdev) { struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev); - struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data; + struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev); int gpio = pdata->gpio_vbus; device_init_wakeup(&pdev->dev, 0); diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c index ae481afcb3ec..d3a5160e4cc7 100644 --- a/drivers/usb/phy/phy-isp1301-omap.c +++ b/drivers/usb/phy/phy-isp1301-omap.c @@ -40,9 +40,7 @@ #include <mach/usb.h> -#ifndef DEBUG -#undef VERBOSE -#endif +#undef VERBOSE #define DRIVER_VERSION "24 August 2004" @@ -387,7 +385,6 @@ static void b_idle(struct isp1301 *isp, const char *tag) static void dump_regs(struct isp1301 *isp, const char *label) { -#ifdef DEBUG u8 ctrl = isp1301_get_u8(isp, ISP1301_OTG_CONTROL_1); u8 status = isp1301_get_u8(isp, ISP1301_OTG_STATUS); u8 src = isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE); @@ -396,7 +393,6 @@ dump_regs(struct isp1301 *isp, const char *label) omap_readl(OTG_CTRL), label, state_name(isp), ctrl, status, src); /* mode control and irq enables don't change much */ -#endif } /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c index d08f33435e96..e9d4cd960ecd 100644 --- a/drivers/usb/phy/phy-msm-usb.c +++ b/drivers/usb/phy/phy-msm-usb.c @@ -1419,7 +1419,7 @@ static int __init msm_otg_probe(struct platform_device *pdev) struct usb_phy *phy; dev_info(&pdev->dev, "msm_otg probe\n"); - if (!pdev->dev.platform_data) { + if (!dev_get_platdata(&pdev->dev)) { dev_err(&pdev->dev, "No platform data given. Bailing out\n"); return -ENODEV; } @@ -1436,7 +1436,7 @@ static int __init msm_otg_probe(struct platform_device *pdev) return -ENOMEM; } - motg->pdata = pdev->dev.platform_data; + motg->pdata = dev_get_platdata(&pdev->dev); phy = &motg->phy; phy->dev = &pdev->dev; diff --git a/drivers/usb/phy/phy-mv-u3d-usb.c b/drivers/usb/phy/phy-mv-u3d-usb.c index 1568ea63e338..d317903022bf 100644 --- a/drivers/usb/phy/phy-mv-u3d-usb.c +++ b/drivers/usb/phy/phy-mv-u3d-usb.c @@ -82,7 +82,7 @@ static void mv_u3d_phy_write(void __iomem *base, u32 reg, u32 value) writel_relaxed(value, data); } -void mv_u3d_phy_shutdown(struct usb_phy *phy) +static void mv_u3d_phy_shutdown(struct usb_phy *phy) { struct mv_u3d_phy *mv_u3d_phy; void __iomem *base; @@ -271,7 +271,7 @@ static int mv_u3d_phy_probe(struct platform_device *pdev) void __iomem *phy_base; int ret; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (!pdata) { dev_err(&pdev->dev, "%s: no platform data defined\n", __func__); return -EINVAL; diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c index 4a6b03c73876..98f6ac6a78ea 100644 --- a/drivers/usb/phy/phy-mv-usb.c +++ b/drivers/usb/phy/phy-mv-usb.c @@ -653,7 +653,7 @@ static struct attribute_group inputs_attr_group = { .attrs = inputs_attrs, }; -int mv_otg_remove(struct platform_device *pdev) +static int mv_otg_remove(struct platform_device *pdev) { struct mv_otg *mvotg = platform_get_drvdata(pdev); @@ -673,7 +673,7 @@ int mv_otg_remove(struct platform_device *pdev) static int mv_otg_probe(struct platform_device *pdev) { - struct mv_usb_platform_data *pdata = pdev->dev.platform_data; + struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); struct mv_otg *mvotg; struct usb_otg *otg; struct resource *r; @@ -893,7 +893,7 @@ static int mv_otg_resume(struct platform_device *pdev) static struct platform_driver mv_otg_driver = { .probe = mv_otg_probe, - .remove = __exit_p(mv_otg_remove), + .remove = mv_otg_remove, .driver = { .owner = THIS_MODULE, .name = driver_name, diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c index bd601c537c8d..fdd33b44dbd3 100644 --- a/drivers/usb/phy/phy-mxs-usb.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -41,11 +41,14 @@ struct mxs_phy { #define to_mxs_phy(p) container_of((p), struct mxs_phy, phy) -static void mxs_phy_hw_init(struct mxs_phy *mxs_phy) +static int mxs_phy_hw_init(struct mxs_phy *mxs_phy) { + int ret; void __iomem *base = mxs_phy->phy.io_priv; - stmp_reset_block(base + HW_USBPHY_CTRL); + ret = stmp_reset_block(base + HW_USBPHY_CTRL); + if (ret) + return ret; /* Power up the PHY */ writel(0, base + HW_USBPHY_PWD); @@ -54,6 +57,8 @@ static void mxs_phy_hw_init(struct mxs_phy *mxs_phy) writel(BM_USBPHY_CTRL_ENUTMILEVEL2 | BM_USBPHY_CTRL_ENUTMILEVEL3, base + HW_USBPHY_CTRL_SET); + + return 0; } static int mxs_phy_init(struct usb_phy *phy) @@ -61,9 +66,7 @@ static int mxs_phy_init(struct usb_phy *phy) struct mxs_phy *mxs_phy = to_mxs_phy(phy); clk_prepare_enable(mxs_phy->clk); - mxs_phy_hw_init(mxs_phy); - - return 0; + return mxs_phy_hw_init(mxs_phy); } static void mxs_phy_shutdown(struct usb_phy *phy) diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c index 1419ceda9759..a4dda8e12562 100644 --- a/drivers/usb/phy/phy-omap-control.c +++ b/drivers/usb/phy/phy-omap-control.c @@ -197,7 +197,8 @@ static int omap_control_usb_probe(struct platform_device *pdev) { struct resource *res; struct device_node *np = pdev->dev.of_node; - struct omap_control_usb_platform_data *pdata = pdev->dev.platform_data; + struct omap_control_usb_platform_data *pdata = + dev_get_platdata(&pdev->dev); control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb), GFP_KERNEL); diff --git a/drivers/usb/phy/phy-omap-usb2.c b/drivers/usb/phy/phy-omap-usb2.c index 844ab68f08d0..d266861d24f7 100644 --- a/drivers/usb/phy/phy-omap-usb2.c +++ b/drivers/usb/phy/phy-omap-usb2.c @@ -98,8 +98,8 @@ static int omap_usb_set_peripheral(struct usb_otg *otg, static int omap_usb2_suspend(struct usb_phy *x, int suspend) { - u32 ret; struct omap_usb *phy = phy_to_omapusb(x); + int ret; if (suspend && !phy->is_suspended) { omap_control_usb_phy_power(phy->control_dev, 0); @@ -108,8 +108,7 @@ static int omap_usb2_suspend(struct usb_phy *x, int suspend) } else if (!suspend && phy->is_suspended) { ret = pm_runtime_get_sync(phy->dev); if (ret < 0) { - dev_err(phy->dev, "get_sync failed with err %d\n", - ret); + dev_err(phy->dev, "get_sync failed with err %d\n", ret); return ret; } omap_control_usb_phy_power(phy->control_dev, 1); @@ -209,9 +208,9 @@ static int omap_usb2_runtime_suspend(struct device *dev) static int omap_usb2_runtime_resume(struct device *dev) { - u32 ret = 0; struct platform_device *pdev = to_platform_device(dev); struct omap_usb *phy = platform_get_drvdata(pdev); + int ret; ret = clk_enable(phy->wkupclk); if (ret < 0) { diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c index a2fb30bbb971..fc15694d3031 100644 --- a/drivers/usb/phy/phy-omap-usb3.c +++ b/drivers/usb/phy/phy-omap-usb3.c @@ -27,7 +27,6 @@ #include <linux/delay.h> #include <linux/usb/omap_control_usb.h> -#define NUM_SYS_CLKS 6 #define PLL_STATUS 0x00000004 #define PLL_GO 0x00000008 #define PLL_CONFIGURATION1 0x0000000C @@ -57,26 +56,32 @@ */ # define PLL_IDLE_TIME 100; -enum sys_clk_rate { - CLK_RATE_UNDEFINED = -1, - CLK_RATE_12MHZ, - CLK_RATE_16MHZ, - CLK_RATE_19MHZ, - CLK_RATE_20MHZ, - CLK_RATE_26MHZ, - CLK_RATE_38MHZ +struct usb_dpll_map { + unsigned long rate; + struct usb_dpll_params params; }; -static struct usb_dpll_params omap_usb3_dpll_params[NUM_SYS_CLKS] = { - {1250, 5, 4, 20, 0}, /* 12 MHz */ - {3125, 20, 4, 20, 0}, /* 16.8 MHz */ - {1172, 8, 4, 20, 65537}, /* 19.2 MHz */ - {1000, 7, 4, 10, 0}, /* 20 MHz */ - {1250, 12, 4, 20, 0}, /* 26 MHz */ - {3125, 47, 4, 20, 92843}, /* 38.4 MHz */ - +static struct usb_dpll_map dpll_map[] = { + {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */ + {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */ + {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */ + {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */ + {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */ + {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */ }; +static struct usb_dpll_params *omap_usb3_get_dpll_params(unsigned long rate) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(dpll_map); i++) { + if (rate == dpll_map[i].rate) + return &dpll_map[i].params; + } + + return 0; +} + static int omap_usb3_suspend(struct usb_phy *x, int suspend) { struct omap_usb *phy = phy_to_omapusb(x); @@ -116,26 +121,6 @@ static int omap_usb3_suspend(struct usb_phy *x, int suspend) return 0; } -static inline enum sys_clk_rate __get_sys_clk_index(unsigned long rate) -{ - switch (rate) { - case 12000000: - return CLK_RATE_12MHZ; - case 16800000: - return CLK_RATE_16MHZ; - case 19200000: - return CLK_RATE_19MHZ; - case 20000000: - return CLK_RATE_20MHZ; - case 26000000: - return CLK_RATE_26MHZ; - case 38400000: - return CLK_RATE_38MHZ; - default: - return CLK_RATE_UNDEFINED; - } -} - static void omap_usb_dpll_relock(struct omap_usb *phy) { u32 val; @@ -155,39 +140,39 @@ static int omap_usb_dpll_lock(struct omap_usb *phy) { u32 val; unsigned long rate; - enum sys_clk_rate clk_index; - - rate = clk_get_rate(phy->sys_clk); - clk_index = __get_sys_clk_index(rate); + struct usb_dpll_params *dpll_params; - if (clk_index == CLK_RATE_UNDEFINED) { - pr_err("dpll cannot be locked for sys clk freq:%luHz\n", rate); + rate = clk_get_rate(phy->sys_clk); + dpll_params = omap_usb3_get_dpll_params(rate); + if (!dpll_params) { + dev_err(phy->dev, + "No DPLL configuration for %lu Hz SYS CLK\n", rate); return -EINVAL; } val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1); val &= ~PLL_REGN_MASK; - val |= omap_usb3_dpll_params[clk_index].n << PLL_REGN_SHIFT; + val |= dpll_params->n << PLL_REGN_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val); val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2); val &= ~PLL_SELFREQDCO_MASK; - val |= omap_usb3_dpll_params[clk_index].freq << PLL_SELFREQDCO_SHIFT; + val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val); val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1); val &= ~PLL_REGM_MASK; - val |= omap_usb3_dpll_params[clk_index].m << PLL_REGM_SHIFT; + val |= dpll_params->m << PLL_REGM_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val); val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION4); val &= ~PLL_REGM_F_MASK; - val |= omap_usb3_dpll_params[clk_index].mf << PLL_REGM_F_SHIFT; + val |= dpll_params->mf << PLL_REGM_F_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION4, val); val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION3); val &= ~PLL_SD_MASK; - val |= omap_usb3_dpll_params[clk_index].sd << PLL_SD_SHIFT; + val |= dpll_params->sd << PLL_SD_SHIFT; omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION3, val); omap_usb_dpll_relock(phy); @@ -198,8 +183,12 @@ static int omap_usb_dpll_lock(struct omap_usb *phy) static int omap_usb3_init(struct usb_phy *x) { struct omap_usb *phy = phy_to_omapusb(x); + int ret; + + ret = omap_usb_dpll_lock(phy); + if (ret) + return ret; - omap_usb_dpll_lock(phy); omap_control_usb3_phy_power(phy->control_dev, 1); return 0; diff --git a/drivers/usb/phy/phy-rcar-usb.c b/drivers/usb/phy/phy-rcar-usb.c index ae909408958d..33265a5b2cdf 100644 --- a/drivers/usb/phy/phy-rcar-usb.c +++ b/drivers/usb/phy/phy-rcar-usb.c @@ -83,7 +83,7 @@ static int rcar_usb_phy_init(struct usb_phy *phy) { struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy); struct device *dev = phy->dev; - struct rcar_phy_platform_data *pdata = dev->platform_data; + struct rcar_phy_platform_data *pdata = dev_get_platdata(dev); void __iomem *reg0 = priv->reg0; void __iomem *reg1 = priv->reg1; static const u8 ovcn_act[] = { OVC0_ACT, OVC1_ACT, OVC2_ACT }; @@ -184,17 +184,12 @@ static int rcar_usb_phy_probe(struct platform_device *pdev) void __iomem *reg0, *reg1 = NULL; int ret; - if (!pdev->dev.platform_data) { + if (!dev_get_platdata(&pdev->dev)) { dev_err(dev, "No platform data\n"); return -EINVAL; } res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res0) { - dev_err(dev, "Not enough platform resources\n"); - return -EINVAL; - } - reg0 = devm_ioremap_resource(dev, res0); if (IS_ERR(reg0)) return PTR_ERR(reg0); diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c index 758b86d0fcb3..ff70e4b19b97 100644 --- a/drivers/usb/phy/phy-samsung-usb2.c +++ b/drivers/usb/phy/phy-samsung-usb2.c @@ -359,7 +359,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev) { struct samsung_usbphy *sphy; struct usb_otg *otg; - struct samsung_usbphy_data *pdata = pdev->dev.platform_data; + struct samsung_usbphy_data *pdata = dev_get_platdata(&pdev->dev); const struct samsung_usbphy_drvdata *drv_data; struct device *dev = &pdev->dev; struct resource *phy_mem; diff --git a/drivers/usb/phy/phy-samsung-usb3.c b/drivers/usb/phy/phy-samsung-usb3.c index 300e0cf5e31f..c6eb22213de6 100644 --- a/drivers/usb/phy/phy-samsung-usb3.c +++ b/drivers/usb/phy/phy-samsung-usb3.c @@ -231,7 +231,7 @@ static void samsung_usb3phy_shutdown(struct usb_phy *phy) static int samsung_usb3phy_probe(struct platform_device *pdev) { struct samsung_usbphy *sphy; - struct samsung_usbphy_data *pdata = pdev->dev.platform_data; + struct samsung_usbphy_data *pdata = dev_get_platdata(&pdev->dev); struct device *dev = &pdev->dev; struct resource *phy_mem; void __iomem *phy_base; diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c index cec0855ed248..e9cb1cb8abc7 100644 --- a/drivers/usb/phy/phy-tegra-usb.c +++ b/drivers/usb/phy/phy-tegra-usb.c @@ -28,20 +28,28 @@ #include <linux/io.h> #include <linux/gpio.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/of_gpio.h> #include <linux/usb/otg.h> #include <linux/usb/ulpi.h> +#include <linux/usb/of.h> #include <asm/mach-types.h> #include <linux/usb/ehci_def.h> #include <linux/usb/tegra_usb_phy.h> +#include <linux/regulator/consumer.h> #define ULPI_VIEWPORT 0x170 -/* PORTSC registers */ +/* PORTSC PTS/PHCD bits, Tegra20 only */ #define TEGRA_USB_PORTSC1 0x184 #define TEGRA_USB_PORTSC1_PTS(x) (((x) & 0x3) << 30) #define TEGRA_USB_PORTSC1_PHCD (1 << 23) +/* HOSTPC1 PTS/PHCD bits, Tegra30 and above */ +#define TEGRA_USB_HOSTPC1_DEVLC 0x1b4 +#define TEGRA_USB_HOSTPC1_DEVLC_PTS(x) (((x) & 0x7) << 29) +#define TEGRA_USB_HOSTPC1_DEVLC_PHCD (1 << 22) + /* Bits of PORTSC1, which will get cleared by writing 1 into them */ #define TEGRA_PORTSC1_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC) @@ -84,16 +92,22 @@ #define UTMIP_XCVR_CFG0 0x808 #define UTMIP_XCVR_SETUP(x) (((x) & 0xf) << 0) +#define UTMIP_XCVR_SETUP_MSB(x) ((((x) & 0x70) >> 4) << 22) #define UTMIP_XCVR_LSRSLEW(x) (((x) & 0x3) << 8) #define UTMIP_XCVR_LSFSLEW(x) (((x) & 0x3) << 10) #define UTMIP_FORCE_PD_POWERDOWN (1 << 14) #define UTMIP_FORCE_PD2_POWERDOWN (1 << 16) #define UTMIP_FORCE_PDZI_POWERDOWN (1 << 18) -#define UTMIP_XCVR_HSSLEW_MSB(x) (((x) & 0x7f) << 25) +#define UTMIP_XCVR_LSBIAS_SEL (1 << 21) +#define UTMIP_XCVR_HSSLEW(x) (((x) & 0x3) << 4) +#define UTMIP_XCVR_HSSLEW_MSB(x) ((((x) & 0x1fc) >> 2) << 25) #define UTMIP_BIAS_CFG0 0x80c #define UTMIP_OTGPD (1 << 11) #define UTMIP_BIASPD (1 << 10) +#define UTMIP_HSSQUELCH_LEVEL(x) (((x) & 0x3) << 0) +#define UTMIP_HSDISCON_LEVEL(x) (((x) & 0x3) << 2) +#define UTMIP_HSDISCON_LEVEL_MSB(x) ((((x) & 0x4) >> 2) << 24) #define UTMIP_HSRX_CFG0 0x810 #define UTMIP_ELASTIC_LIMIT(x) (((x) & 0x1f) << 10) @@ -137,6 +151,12 @@ #define UTMIP_BIAS_CFG1 0x83c #define UTMIP_BIAS_PDTRK_COUNT(x) (((x) & 0x1f) << 3) +/* For Tegra30 and above only, the address is different in Tegra20 */ +#define USB_USBMODE 0x1f8 +#define USB_USBMODE_MASK (3 << 0) +#define USB_USBMODE_HOST (3 << 0) +#define USB_USBMODE_DEVICE (2 << 0) + static DEFINE_SPINLOCK(utmip_pad_lock); static int utmip_pad_count; @@ -184,36 +204,22 @@ static const struct tegra_xtal_freq tegra_freq_table[] = { }, }; -static struct tegra_utmip_config utmip_default[] = { - [0] = { - .hssync_start_delay = 9, - .idle_wait_delay = 17, - .elastic_limit = 16, - .term_range_adj = 6, - .xcvr_setup = 9, - .xcvr_lsfslew = 1, - .xcvr_lsrslew = 1, - }, - [2] = { - .hssync_start_delay = 9, - .idle_wait_delay = 17, - .elastic_limit = 16, - .term_range_adj = 6, - .xcvr_setup = 9, - .xcvr_lsfslew = 2, - .xcvr_lsrslew = 2, - }, -}; - static void set_pts(struct tegra_usb_phy *phy, u8 pts_val) { void __iomem *base = phy->regs; unsigned long val; - val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS; - val &= ~TEGRA_USB_PORTSC1_PTS(3); - val |= TEGRA_USB_PORTSC1_PTS(pts_val & 3); - writel(val, base + TEGRA_USB_PORTSC1); + if (phy->soc_config->has_hostpc) { + val = readl(base + TEGRA_USB_HOSTPC1_DEVLC); + val &= ~TEGRA_USB_HOSTPC1_DEVLC_PTS(~0); + val |= TEGRA_USB_HOSTPC1_DEVLC_PTS(pts_val); + writel(val, base + TEGRA_USB_HOSTPC1_DEVLC); + } else { + val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS; + val &= ~TEGRA_USB_PORTSC1_PTS(~0); + val |= TEGRA_USB_PORTSC1_PTS(pts_val); + writel(val, base + TEGRA_USB_PORTSC1); + } } static void set_phcd(struct tegra_usb_phy *phy, bool enable) @@ -221,17 +227,26 @@ static void set_phcd(struct tegra_usb_phy *phy, bool enable) void __iomem *base = phy->regs; unsigned long val; - val = readl(base + TEGRA_USB_PORTSC1) & ~TEGRA_PORTSC1_RWC_BITS; - if (enable) - val |= TEGRA_USB_PORTSC1_PHCD; - else - val &= ~TEGRA_USB_PORTSC1_PHCD; - writel(val, base + TEGRA_USB_PORTSC1); + if (phy->soc_config->has_hostpc) { + val = readl(base + TEGRA_USB_HOSTPC1_DEVLC); + if (enable) + val |= TEGRA_USB_HOSTPC1_DEVLC_PHCD; + else + val &= ~TEGRA_USB_HOSTPC1_DEVLC_PHCD; + writel(val, base + TEGRA_USB_HOSTPC1_DEVLC); + } else { + val = readl(base + TEGRA_USB_PORTSC1) & ~PORT_RWC_BITS; + if (enable) + val |= TEGRA_USB_PORTSC1_PHCD; + else + val &= ~TEGRA_USB_PORTSC1_PHCD; + writel(val, base + TEGRA_USB_PORTSC1); + } } static int utmip_pad_open(struct tegra_usb_phy *phy) { - phy->pad_clk = devm_clk_get(phy->dev, "utmi-pads"); + phy->pad_clk = devm_clk_get(phy->u_phy.dev, "utmi-pads"); if (IS_ERR(phy->pad_clk)) { pr_err("%s: can't get utmip pad clock\n", __func__); return PTR_ERR(phy->pad_clk); @@ -244,6 +259,7 @@ static void utmip_pad_power_on(struct tegra_usb_phy *phy) { unsigned long val, flags; void __iomem *base = phy->pad_regs; + struct tegra_utmip_config *config = phy->config; clk_prepare_enable(phy->pad_clk); @@ -252,6 +268,16 @@ static void utmip_pad_power_on(struct tegra_usb_phy *phy) if (utmip_pad_count++ == 0) { val = readl(base + UTMIP_BIAS_CFG0); val &= ~(UTMIP_OTGPD | UTMIP_BIASPD); + + if (phy->soc_config->requires_extra_tuning_parameters) { + val &= ~(UTMIP_HSSQUELCH_LEVEL(~0) | + UTMIP_HSDISCON_LEVEL(~0) | + UTMIP_HSDISCON_LEVEL_MSB(~0)); + + val |= UTMIP_HSSQUELCH_LEVEL(config->hssquelch_level); + val |= UTMIP_HSDISCON_LEVEL(config->hsdiscon_level); + val |= UTMIP_HSDISCON_LEVEL_MSB(config->hsdiscon_level); + } writel(val, base + UTMIP_BIAS_CFG0); } @@ -361,7 +387,7 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) } val = readl(base + UTMIP_TX_CFG0); - val &= ~UTMIP_FS_PREABMLE_J; + val |= UTMIP_FS_PREABMLE_J; writel(val, base + UTMIP_TX_CFG0); val = readl(base + UTMIP_HSRX_CFG0); @@ -384,34 +410,56 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) val &= ~UTMIP_SUSPEND_EXIT_ON_EDGE; writel(val, base + UTMIP_MISC_CFG0); - val = readl(base + UTMIP_MISC_CFG1); - val &= ~(UTMIP_PLL_ACTIVE_DLY_COUNT(~0) | UTMIP_PLLU_STABLE_COUNT(~0)); - val |= UTMIP_PLL_ACTIVE_DLY_COUNT(phy->freq->active_delay) | - UTMIP_PLLU_STABLE_COUNT(phy->freq->stable_count); - writel(val, base + UTMIP_MISC_CFG1); - - val = readl(base + UTMIP_PLL_CFG1); - val &= ~(UTMIP_XTAL_FREQ_COUNT(~0) | UTMIP_PLLU_ENABLE_DLY_COUNT(~0)); - val |= UTMIP_XTAL_FREQ_COUNT(phy->freq->xtal_freq_count) | - UTMIP_PLLU_ENABLE_DLY_COUNT(phy->freq->enable_delay); - writel(val, base + UTMIP_PLL_CFG1); + if (!phy->soc_config->utmi_pll_config_in_car_module) { + val = readl(base + UTMIP_MISC_CFG1); + val &= ~(UTMIP_PLL_ACTIVE_DLY_COUNT(~0) | + UTMIP_PLLU_STABLE_COUNT(~0)); + val |= UTMIP_PLL_ACTIVE_DLY_COUNT(phy->freq->active_delay) | + UTMIP_PLLU_STABLE_COUNT(phy->freq->stable_count); + writel(val, base + UTMIP_MISC_CFG1); + + val = readl(base + UTMIP_PLL_CFG1); + val &= ~(UTMIP_XTAL_FREQ_COUNT(~0) | + UTMIP_PLLU_ENABLE_DLY_COUNT(~0)); + val |= UTMIP_XTAL_FREQ_COUNT(phy->freq->xtal_freq_count) | + UTMIP_PLLU_ENABLE_DLY_COUNT(phy->freq->enable_delay); + writel(val, base + UTMIP_PLL_CFG1); + } - if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) { + if (phy->mode == USB_DR_MODE_PERIPHERAL) { val = readl(base + USB_SUSP_CTRL); val &= ~(USB_WAKE_ON_CNNT_EN_DEV | USB_WAKE_ON_DISCON_EN_DEV); writel(val, base + USB_SUSP_CTRL); + + val = readl(base + UTMIP_BAT_CHRG_CFG0); + val &= ~UTMIP_PD_CHRG; + writel(val, base + UTMIP_BAT_CHRG_CFG0); + } else { + val = readl(base + UTMIP_BAT_CHRG_CFG0); + val |= UTMIP_PD_CHRG; + writel(val, base + UTMIP_BAT_CHRG_CFG0); } utmip_pad_power_on(phy); val = readl(base + UTMIP_XCVR_CFG0); val &= ~(UTMIP_FORCE_PD_POWERDOWN | UTMIP_FORCE_PD2_POWERDOWN | - UTMIP_FORCE_PDZI_POWERDOWN | UTMIP_XCVR_SETUP(~0) | - UTMIP_XCVR_LSFSLEW(~0) | UTMIP_XCVR_LSRSLEW(~0) | - UTMIP_XCVR_HSSLEW_MSB(~0)); - val |= UTMIP_XCVR_SETUP(config->xcvr_setup); + UTMIP_FORCE_PDZI_POWERDOWN | UTMIP_XCVR_LSBIAS_SEL | + UTMIP_XCVR_SETUP(~0) | UTMIP_XCVR_SETUP_MSB(~0) | + UTMIP_XCVR_LSFSLEW(~0) | UTMIP_XCVR_LSRSLEW(~0)); + + if (!config->xcvr_setup_use_fuses) { + val |= UTMIP_XCVR_SETUP(config->xcvr_setup); + val |= UTMIP_XCVR_SETUP_MSB(config->xcvr_setup); + } val |= UTMIP_XCVR_LSFSLEW(config->xcvr_lsfslew); val |= UTMIP_XCVR_LSRSLEW(config->xcvr_lsrslew); + + if (phy->soc_config->requires_extra_tuning_parameters) { + val &= ~(UTMIP_XCVR_HSSLEW(~0) | UTMIP_XCVR_HSSLEW_MSB(~0)); + val |= UTMIP_XCVR_HSSLEW(config->xcvr_hsslew); + val |= UTMIP_XCVR_HSSLEW_MSB(config->xcvr_hsslew); + } writel(val, base + UTMIP_XCVR_CFG0); val = readl(base + UTMIP_XCVR_CFG1); @@ -420,23 +468,19 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) val |= UTMIP_XCVR_TERM_RANGE_ADJ(config->term_range_adj); writel(val, base + UTMIP_XCVR_CFG1); - val = readl(base + UTMIP_BAT_CHRG_CFG0); - val &= ~UTMIP_PD_CHRG; - writel(val, base + UTMIP_BAT_CHRG_CFG0); - val = readl(base + UTMIP_BIAS_CFG1); val &= ~UTMIP_BIAS_PDTRK_COUNT(~0); val |= UTMIP_BIAS_PDTRK_COUNT(0x5); writel(val, base + UTMIP_BIAS_CFG1); - if (phy->is_legacy_phy) { - val = readl(base + UTMIP_SPARE_CFG0); - if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) - val &= ~FUSE_SETUP_SEL; - else - val |= FUSE_SETUP_SEL; - writel(val, base + UTMIP_SPARE_CFG0); - } else { + val = readl(base + UTMIP_SPARE_CFG0); + if (config->xcvr_setup_use_fuses) + val |= FUSE_SETUP_SEL; + else + val &= ~FUSE_SETUP_SEL; + writel(val, base + UTMIP_SPARE_CFG0); + + if (!phy->is_legacy_phy) { val = readl(base + USB_SUSP_CTRL); val |= UTMIP_PHY_ENABLE; writel(val, base + USB_SUSP_CTRL); @@ -459,6 +503,16 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy) utmi_phy_clk_enable(phy); + if (phy->soc_config->requires_usbmode_setup) { + val = readl(base + USB_USBMODE); + val &= ~USB_USBMODE_MASK; + if (phy->mode == USB_DR_MODE_HOST) + val |= USB_USBMODE_HOST; + else + val |= USB_USBMODE_DEVICE; + writel(val, base + USB_USBMODE); + } + if (!phy->is_legacy_phy) set_pts(phy, 0); @@ -472,7 +526,7 @@ static int utmi_phy_power_off(struct tegra_usb_phy *phy) utmi_phy_clk_disable(phy); - if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) { + if (phy->mode == USB_DR_MODE_PERIPHERAL) { val = readl(base + USB_SUSP_CTRL); val &= ~USB_WAKEUP_DEBOUNCE_COUNT(~0); val |= USB_WAKE_ON_CNNT_EN_DEV | USB_WAKEUP_DEBOUNCE_COUNT(5); @@ -560,13 +614,15 @@ static int ulpi_phy_power_on(struct tegra_usb_phy *phy) ret = gpio_direction_output(phy->reset_gpio, 0); if (ret < 0) { - dev_err(phy->dev, "gpio %d not set to 0\n", phy->reset_gpio); + dev_err(phy->u_phy.dev, "gpio %d not set to 0\n", + phy->reset_gpio); return ret; } msleep(5); ret = gpio_direction_output(phy->reset_gpio, 1); if (ret < 0) { - dev_err(phy->dev, "gpio %d not set to 1\n", phy->reset_gpio); + dev_err(phy->u_phy.dev, "gpio %d not set to 1\n", + phy->reset_gpio); return ret; } @@ -634,6 +690,9 @@ static void tegra_usb_phy_close(struct usb_phy *x) { struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy); + if (!IS_ERR(phy->vbus)) + regulator_disable(phy->vbus); + clk_disable_unprepare(phy->pll_u); } @@ -666,29 +725,30 @@ static int ulpi_open(struct tegra_usb_phy *phy) { int err; - phy->clk = devm_clk_get(phy->dev, "ulpi-link"); + phy->clk = devm_clk_get(phy->u_phy.dev, "ulpi-link"); if (IS_ERR(phy->clk)) { pr_err("%s: can't get ulpi clock\n", __func__); return PTR_ERR(phy->clk); } - err = devm_gpio_request(phy->dev, phy->reset_gpio, "ulpi_phy_reset_b"); + err = devm_gpio_request(phy->u_phy.dev, phy->reset_gpio, + "ulpi_phy_reset_b"); if (err < 0) { - dev_err(phy->dev, "request failed for gpio: %d\n", + dev_err(phy->u_phy.dev, "request failed for gpio: %d\n", phy->reset_gpio); return err; } err = gpio_direction_output(phy->reset_gpio, 0); if (err < 0) { - dev_err(phy->dev, "gpio %d direction not set to output\n", + dev_err(phy->u_phy.dev, "gpio %d direction not set to output\n", phy->reset_gpio); return err; } phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0); if (!phy->ulpi) { - dev_err(phy->dev, "otg_ulpi_create returned NULL\n"); + dev_err(phy->u_phy.dev, "otg_ulpi_create returned NULL\n"); err = -ENOMEM; return err; } @@ -703,14 +763,7 @@ static int tegra_usb_phy_init(struct tegra_usb_phy *phy) int i; int err; - if (!phy->is_ulpi_phy) { - if (phy->is_legacy_phy) - phy->config = &utmip_default[0]; - else - phy->config = &utmip_default[2]; - } - - phy->pll_u = devm_clk_get(phy->dev, "pll_u"); + phy->pll_u = devm_clk_get(phy->u_phy.dev, "pll_u"); if (IS_ERR(phy->pll_u)) { pr_err("Can't get pll_u clock\n"); return PTR_ERR(phy->pll_u); @@ -733,6 +786,16 @@ static int tegra_usb_phy_init(struct tegra_usb_phy *phy) goto fail; } + if (!IS_ERR(phy->vbus)) { + err = regulator_enable(phy->vbus); + if (err) { + dev_err(phy->u_phy.dev, + "failed to enable usb vbus regulator: %d\n", + err); + goto fail; + } + } + if (phy->is_ulpi_phy) err = ulpi_open(phy); else @@ -784,11 +847,138 @@ void tegra_ehci_phy_restore_end(struct usb_phy *x) } EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_end); +static int read_utmi_param(struct platform_device *pdev, const char *param, + u8 *dest) +{ + u32 value; + int err = of_property_read_u32(pdev->dev.of_node, param, &value); + *dest = (u8)value; + if (err < 0) + dev_err(&pdev->dev, "Failed to read USB UTMI parameter %s: %d\n", + param, err); + return err; +} + +static int utmi_phy_probe(struct tegra_usb_phy *tegra_phy, + struct platform_device *pdev) +{ + struct resource *res; + int err; + struct tegra_utmip_config *config; + + tegra_phy->is_ulpi_phy = false; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(&pdev->dev, "Failed to get UTMI Pad regs\n"); + return -ENXIO; + } + + tegra_phy->pad_regs = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (!tegra_phy->regs) { + dev_err(&pdev->dev, "Failed to remap UTMI Pad regs\n"); + return -ENOMEM; + } + + tegra_phy->config = devm_kzalloc(&pdev->dev, + sizeof(*tegra_phy->config), GFP_KERNEL); + if (!tegra_phy->config) { + dev_err(&pdev->dev, + "unable to allocate memory for USB UTMIP config\n"); + return -ENOMEM; + } + + config = tegra_phy->config; + + err = read_utmi_param(pdev, "nvidia,hssync-start-delay", + &config->hssync_start_delay); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,elastic-limit", + &config->elastic_limit); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,idle-wait-delay", + &config->idle_wait_delay); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,term-range-adj", + &config->term_range_adj); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,xcvr-lsfslew", + &config->xcvr_lsfslew); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,xcvr-lsrslew", + &config->xcvr_lsrslew); + if (err < 0) + return err; + + if (tegra_phy->soc_config->requires_extra_tuning_parameters) { + err = read_utmi_param(pdev, "nvidia,xcvr-hsslew", + &config->xcvr_hsslew); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,hssquelch-level", + &config->hssquelch_level); + if (err < 0) + return err; + + err = read_utmi_param(pdev, "nvidia,hsdiscon-level", + &config->hsdiscon_level); + if (err < 0) + return err; + } + + config->xcvr_setup_use_fuses = of_property_read_bool( + pdev->dev.of_node, "nvidia,xcvr-setup-use-fuses"); + + if (!config->xcvr_setup_use_fuses) { + err = read_utmi_param(pdev, "nvidia,xcvr-setup", + &config->xcvr_setup); + if (err < 0) + return err; + } + + return 0; +} + +static const struct tegra_phy_soc_config tegra20_soc_config = { + .utmi_pll_config_in_car_module = false, + .has_hostpc = false, + .requires_usbmode_setup = false, + .requires_extra_tuning_parameters = false, +}; + +static const struct tegra_phy_soc_config tegra30_soc_config = { + .utmi_pll_config_in_car_module = true, + .has_hostpc = true, + .requires_usbmode_setup = true, + .requires_extra_tuning_parameters = true, +}; + +static struct of_device_id tegra_usb_phy_id_table[] = { + { .compatible = "nvidia,tegra30-usb-phy", .data = &tegra30_soc_config }, + { .compatible = "nvidia,tegra20-usb-phy", .data = &tegra20_soc_config }, + { }, +}; +MODULE_DEVICE_TABLE(of, tegra_usb_phy_id_table); + static int tegra_usb_phy_probe(struct platform_device *pdev) { + const struct of_device_id *match; struct resource *res; struct tegra_usb_phy *tegra_phy = NULL; struct device_node *np = pdev->dev.of_node; + enum usb_phy_interface phy_type; int err; tegra_phy = devm_kzalloc(&pdev->dev, sizeof(*tegra_phy), GFP_KERNEL); @@ -797,6 +987,13 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) return -ENOMEM; } + match = of_match_device(tegra_usb_phy_id_table, &pdev->dev); + if (!match) { + dev_err(&pdev->dev, "Error: No device match found\n"); + return -ENODEV; + } + tegra_phy->soc_config = match->data; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "Failed to get I/O memory\n"); @@ -813,23 +1010,15 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) tegra_phy->is_legacy_phy = of_property_read_bool(np, "nvidia,has-legacy-mode"); - err = of_property_match_string(np, "phy_type", "ulpi"); - if (err < 0) { - tegra_phy->is_ulpi_phy = false; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!res) { - dev_err(&pdev->dev, "Failed to get UTMI Pad regs\n"); - return -ENXIO; - } + phy_type = of_usb_get_phy_mode(np); + switch (phy_type) { + case USBPHY_INTERFACE_MODE_UTMI: + err = utmi_phy_probe(tegra_phy, pdev); + if (err < 0) + return err; + break; - tegra_phy->pad_regs = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - if (!tegra_phy->regs) { - dev_err(&pdev->dev, "Failed to remap UTMI Pad regs\n"); - return -ENOMEM; - } - } else { + case USBPHY_INTERFACE_MODE_ULPI: tegra_phy->is_ulpi_phy = true; tegra_phy->reset_gpio = @@ -839,19 +1028,35 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) tegra_phy->reset_gpio); return tegra_phy->reset_gpio; } + tegra_phy->config = NULL; + break; + + default: + dev_err(&pdev->dev, "phy_type is invalid or unsupported\n"); + return -EINVAL; } - err = of_property_match_string(np, "dr_mode", "otg"); - if (err < 0) { - err = of_property_match_string(np, "dr_mode", "peripheral"); - if (err < 0) - tegra_phy->mode = TEGRA_USB_PHY_MODE_HOST; - else - tegra_phy->mode = TEGRA_USB_PHY_MODE_DEVICE; - } else - tegra_phy->mode = TEGRA_USB_PHY_MODE_OTG; + if (of_find_property(np, "dr_mode", NULL)) + tegra_phy->mode = of_usb_get_dr_mode(np); + else + tegra_phy->mode = USB_DR_MODE_HOST; - tegra_phy->dev = &pdev->dev; + if (tegra_phy->mode == USB_DR_MODE_UNKNOWN) { + dev_err(&pdev->dev, "dr_mode is invalid\n"); + return -EINVAL; + } + + /* On some boards, the VBUS regulator doesn't need to be controlled */ + if (of_find_property(np, "vbus-supply", NULL)) { + tegra_phy->vbus = devm_regulator_get(&pdev->dev, "vbus"); + if (IS_ERR(tegra_phy->vbus)) + return PTR_ERR(tegra_phy->vbus); + } else { + dev_notice(&pdev->dev, "no vbus regulator"); + tegra_phy->vbus = ERR_PTR(-ENODEV); + } + + tegra_phy->u_phy.dev = &pdev->dev; err = tegra_usb_phy_init(tegra_phy); if (err < 0) return err; @@ -859,18 +1064,29 @@ static int tegra_usb_phy_probe(struct platform_device *pdev) tegra_phy->u_phy.shutdown = tegra_usb_phy_close; tegra_phy->u_phy.set_suspend = tegra_usb_phy_suspend; - dev_set_drvdata(&pdev->dev, tegra_phy); + platform_set_drvdata(pdev, tegra_phy); + + err = usb_add_phy_dev(&tegra_phy->u_phy); + if (err < 0) { + tegra_usb_phy_close(&tegra_phy->u_phy); + return err; + } + return 0; } -static struct of_device_id tegra_usb_phy_id_table[] = { - { .compatible = "nvidia,tegra20-usb-phy", }, - { }, -}; -MODULE_DEVICE_TABLE(of, tegra_usb_phy_id_table); +static int tegra_usb_phy_remove(struct platform_device *pdev) +{ + struct tegra_usb_phy *tegra_phy = platform_get_drvdata(pdev); + + usb_remove_phy(&tegra_phy->u_phy); + + return 0; +} static struct platform_driver tegra_usb_phy_driver = { .probe = tegra_usb_phy_probe, + .remove = tegra_usb_phy_remove, .driver = { .name = "tegra-phy", .owner = THIS_MODULE, @@ -879,29 +1095,5 @@ static struct platform_driver tegra_usb_phy_driver = { }; module_platform_driver(tegra_usb_phy_driver); -static int tegra_usb_phy_match(struct device *dev, void *data) -{ - struct tegra_usb_phy *tegra_phy = dev_get_drvdata(dev); - struct device_node *dn = data; - - return (tegra_phy->dev->of_node == dn) ? 1 : 0; -} - -struct usb_phy *tegra_usb_get_phy(struct device_node *dn) -{ - struct device *dev; - struct tegra_usb_phy *tegra_phy; - - dev = driver_find_device(&tegra_usb_phy_driver.driver, NULL, dn, - tegra_usb_phy_match); - if (!dev) - return ERR_PTR(-EPROBE_DEFER); - - tegra_phy = dev_get_drvdata(dev); - - return &tegra_phy->u_phy; -} -EXPORT_SYMBOL_GPL(tegra_usb_get_phy); - MODULE_DESCRIPTION("Tegra USB PHY driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-twl4030-usb.c b/drivers/usb/phy/phy-twl4030-usb.c index 8f78d2d40722..90730c8762b8 100644 --- a/drivers/usb/phy/phy-twl4030-usb.c +++ b/drivers/usb/phy/phy-twl4030-usb.c @@ -648,7 +648,7 @@ static int twl4030_set_host(struct usb_otg *otg, struct usb_bus *host) static int twl4030_usb_probe(struct platform_device *pdev) { - struct twl4030_usb_data *pdata = pdev->dev.platform_data; + struct twl4030_usb_data *pdata = dev_get_platdata(&pdev->dev); struct twl4030_usb *twl; int status, err; struct usb_otg *otg; diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c index 1753bd367e0a..16dbc9382678 100644 --- a/drivers/usb/phy/phy-twl6030-usb.c +++ b/drivers/usb/phy/phy-twl6030-usb.c @@ -324,7 +324,7 @@ static int twl6030_usb_probe(struct platform_device *pdev) int status, err; struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; - struct twl4030_usb_data *pdata = dev->platform_data; + struct twl4030_usb_data *pdata = dev_get_platdata(dev); twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL); if (!twl) diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index cfd205036aba..17267b0a2e95 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -416,7 +416,7 @@ static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev) */ static int usbhs_probe(struct platform_device *pdev) { - struct renesas_usbhs_platform_info *info = pdev->dev.platform_data; + struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev); struct renesas_usbhs_driver_callback *dfunc; struct usbhs_priv *priv; struct resource *res, *irq_res; @@ -499,7 +499,7 @@ static int usbhs_probe(struct platform_device *pdev) goto probe_end_fifo_exit; /* dev_set_drvdata should be called after usbhs_mod_init */ - dev_set_drvdata(&pdev->dev, priv); + platform_set_drvdata(pdev, priv); /* * deviece reset here because @@ -558,7 +558,7 @@ probe_end_pipe_exit: static int usbhs_remove(struct platform_device *pdev) { struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); - struct renesas_usbhs_platform_info *info = pdev->dev.platform_data; + struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev); struct renesas_usbhs_driver_callback *dfunc = &info->driver_callback; dev_dbg(&pdev->dev, "usb remove\n"); diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 805940c37353..3385aeb5a364 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -77,9 +77,9 @@ struct usbhsg_recip_handle { struct usbhsg_gpriv, mod) #define __usbhsg_for_each_uep(start, pos, g, i) \ - for (i = start, pos = (g)->uep + i; \ - i < (g)->uep_size; \ - i++, pos = (g)->uep + i) + for ((i) = start; \ + ((i) < (g)->uep_size) && ((pos) = (g)->uep + (i)); \ + (i)++) #define usbhsg_for_each_uep(pos, gpriv, i) \ __usbhsg_for_each_uep(1, pos, gpriv, i) diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c index b86815421c8d..e40f565004d0 100644 --- a/drivers/usb/renesas_usbhs/mod_host.c +++ b/drivers/usb/renesas_usbhs/mod_host.c @@ -111,9 +111,9 @@ static const char usbhsh_hcd_name[] = "renesas_usbhs host"; container_of(usbhs_mod_get(priv, USBHS_HOST), struct usbhsh_hpriv, mod) #define __usbhsh_for_each_udev(start, pos, h, i) \ - for (i = start, pos = (h)->udev + i; \ - i < USBHSH_DEVICE_MAX; \ - i++, pos = (h)->udev + i) + for ((i) = start; \ + ((i) < USBHSH_DEVICE_MAX) && ((pos) = (h)->udev + (i)); \ + (i)++) #define usbhsh_for_each_udev(pos, hpriv, i) \ __usbhsh_for_each_udev(1, pos, hpriv, i) diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h index b476fde955bf..3e5349879838 100644 --- a/drivers/usb/renesas_usbhs/pipe.h +++ b/drivers/usb/renesas_usbhs/pipe.h @@ -54,9 +54,9 @@ struct usbhs_pipe_info { * pipe list */ #define __usbhs_for_each_pipe(start, pos, info, i) \ - for (i = start, pos = (info)->pipe + i; \ - i < (info)->size; \ - i++, pos = (info)->pipe + i) + for ((i) = start; \ + ((i) < (info)->size) && ((pos) = (info)->pipe + (i)); \ + (i)++) #define usbhs_for_each_pipe(pos, priv, i) \ __usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i) diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index 7eef9b33fde6..c454bfa22a10 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -51,6 +51,24 @@ config USB_SERIAL_GENERIC support" be compiled as a module for this driver to be used properly. +config USB_SERIAL_SIMPLE + tristate "USB Serial Simple Driver" + help + Say Y here to use the USB serial "simple" driver. This driver + handles a wide range of very simple devices, all in one + driver. Specifically, it supports: + - Suunto ANT+ USB device. + - Fundamental Software dongle. + - HP4x calculators + - a number of Motoroloa phones + - Siemens USB/MPI adapter. + - ViVOtech ViVOpay USB device. + - Infineon Modem Flashloader USB interface + - ZIO Motherboard USB serial interface + + To compile this driver as a module, choose M here: the module + will be called usb-serial-simple. + config USB_SERIAL_AIRCABLE tristate "USB AIRcable Bluetooth Dongle Driver" help @@ -158,14 +176,6 @@ config USB_SERIAL_FTDI_SIO To compile this driver as a module, choose M here: the module will be called ftdi_sio. -config USB_SERIAL_FUNSOFT - tristate "USB Fundamental Software Dongle Driver" - ---help--- - Say Y here if you want to use the Fundamental Software dongle. - - To compile this driver as a module, choose M here: the - module will be called funsoft. - config USB_SERIAL_VISOR tristate "USB Handspring Visor / Palm m50x / Sony Clie Driver" help @@ -462,15 +472,6 @@ config USB_SERIAL_MOS7840 To compile this driver as a module, choose M here: the module will be called mos7840. If unsure, choose N. -config USB_SERIAL_MOTOROLA - tristate "USB Motorola Phone modem driver" - ---help--- - Say Y here if you want to use a Motorola phone with a USB - connector as a modem link. - - To compile this driver as a module, choose M here: the - module will be called moto_modem. If unsure, choose N. - config USB_SERIAL_NAVMAN tristate "USB Navman GPS device" help @@ -525,14 +526,6 @@ config USB_SERIAL_SPCP8X5 To compile this driver as a module, choose M here: the module will be called spcp8x5. -config USB_SERIAL_HP4X - tristate "USB HP4x Calculators support" - help - Say Y here if you want to use an Hewlett-Packard 4x Calculator. - - To compile this driver as a module, choose M here: the - module will be called hp4x. - config USB_SERIAL_SAFE tristate "USB Safe Serial (Encapsulated) Driver" @@ -540,14 +533,6 @@ config USB_SERIAL_SAFE_PADDED bool "USB Secure Encapsulated Driver - Padded" depends on USB_SERIAL_SAFE -config USB_SERIAL_SIEMENS_MPI - tristate "USB Siemens MPI driver" - help - Say M here if you want to use a Siemens USB/MPI adapter. - - To compile this driver as a module, choose M here: the - module will be called siemens_mpi. - config USB_SERIAL_SIERRAWIRELESS tristate "USB Sierra Wireless Driver" help @@ -639,14 +624,6 @@ config USB_SERIAL_OPTICON To compile this driver as a module, choose M here: the module will be called opticon. -config USB_SERIAL_VIVOPAY_SERIAL - tristate "USB ViVOpay serial interface driver" - help - Say Y here if you want to use a ViVOtech ViVOpay USB device. - - To compile this driver as a module, choose M here: the - module will be called vivopay-serial. - config USB_SERIAL_XSENS_MT tristate "Xsens motion tracker serial interface driver" help @@ -659,14 +636,6 @@ config USB_SERIAL_XSENS_MT To compile this driver as a module, choose M here: the module will be called xsens_mt. -config USB_SERIAL_ZIO - tristate "ZIO Motherboard USB serial interface driver" - help - Say Y here if you want to use ZIO Motherboard. - - To compile this driver as a module, choose M here: the - module will be called zio. - config USB_SERIAL_WISHBONE tristate "USB-Wishbone adapter interface driver" help @@ -710,23 +679,6 @@ config USB_SERIAL_QT2 To compile this driver as a module, choose M here: the module will be called quatech-serial. -config USB_SERIAL_FLASHLOADER - tristate "Infineon Modem Flashloader USB interface driver" - help - Say Y here if you want to download Infineon Modem - via USB Flashloader serial driver. - - To compile this driver as a module, choose M here: the - module will be called flashloader. - -config USB_SERIAL_SUUNTO - tristate "USB Suunto ANT+ driver" - help - Say Y here if you want to use the Suunto ANT+ USB device. - - To compile this driver as a module, choose M here: the - module will be called suunto. - config USB_SERIAL_DEBUG tristate "USB Debugging Device" help diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index a14a870d993f..42670f0b5bc0 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile @@ -24,9 +24,7 @@ obj-$(CONFIG_USB_SERIAL_EDGEPORT_TI) += io_ti.o obj-$(CONFIG_USB_SERIAL_EMPEG) += empeg.o obj-$(CONFIG_USB_SERIAL_F81232) += f81232.o obj-$(CONFIG_USB_SERIAL_FTDI_SIO) += ftdi_sio.o -obj-$(CONFIG_USB_SERIAL_FUNSOFT) += funsoft.o obj-$(CONFIG_USB_SERIAL_GARMIN) += garmin_gps.o -obj-$(CONFIG_USB_SERIAL_HP4X) += hp4x.o obj-$(CONFIG_USB_SERIAL_IPAQ) += ipaq.o obj-$(CONFIG_USB_SERIAL_IPW) += ipw.o obj-$(CONFIG_USB_SERIAL_IR) += ir-usb.o @@ -39,7 +37,6 @@ obj-$(CONFIG_USB_SERIAL_MCT_U232) += mct_u232.o obj-$(CONFIG_USB_SERIAL_METRO) += metro-usb.o obj-$(CONFIG_USB_SERIAL_MOS7720) += mos7720.o obj-$(CONFIG_USB_SERIAL_MOS7840) += mos7840.o -obj-$(CONFIG_USB_SERIAL_MOTOROLA) += moto_modem.o obj-$(CONFIG_USB_SERIAL_NAVMAN) += navman.o obj-$(CONFIG_USB_SERIAL_OMNINET) += omninet.o obj-$(CONFIG_USB_SERIAL_OPTICON) += opticon.o @@ -50,11 +47,10 @@ obj-$(CONFIG_USB_SERIAL_QCAUX) += qcaux.o obj-$(CONFIG_USB_SERIAL_QUALCOMM) += qcserial.o obj-$(CONFIG_USB_SERIAL_QT2) += quatech2.o obj-$(CONFIG_USB_SERIAL_SAFE) += safe_serial.o -obj-$(CONFIG_USB_SERIAL_SIEMENS_MPI) += siemens_mpi.o obj-$(CONFIG_USB_SERIAL_SIERRAWIRELESS) += sierra.o +obj-$(CONFIG_USB_SERIAL_SIMPLE) += usb-serial-simple.o obj-$(CONFIG_USB_SERIAL_SPCP8X5) += spcp8x5.o obj-$(CONFIG_USB_SERIAL_SSU100) += ssu100.o -obj-$(CONFIG_USB_SERIAL_SUUNTO) += suunto.o obj-$(CONFIG_USB_SERIAL_SYMBOL) += symbolserial.o obj-$(CONFIG_USB_SERIAL_WWAN) += usb_wwan.o obj-$(CONFIG_USB_SERIAL_TI) += ti_usb_3410_5052.o @@ -62,8 +58,5 @@ obj-$(CONFIG_USB_SERIAL_VISOR) += visor.o obj-$(CONFIG_USB_SERIAL_WISHBONE) += wishbone-serial.o obj-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat.o obj-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda.o -obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL) += vivopay-serial.o obj-$(CONFIG_USB_SERIAL_XSENS_MT) += xsens_mt.o -obj-$(CONFIG_USB_SERIAL_ZIO) += zio.o obj-$(CONFIG_USB_SERIAL_ZTE) += zte_ev.o -obj-$(CONFIG_USB_SERIAL_FLASHLOADER) += flashloader.o diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index f053b302a00d..0ce51f21ed2a 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -38,15 +38,14 @@ static int usb_serial_device_match(struct device *dev, return 0; } -static ssize_t show_port_number(struct device *dev, +static ssize_t port_number_show(struct device *dev, struct device_attribute *attr, char *buf) { struct usb_serial_port *port = to_usb_serial_port(dev); return sprintf(buf, "%d\n", port->port_number); } - -static DEVICE_ATTR(port_number, S_IRUGO, show_port_number, NULL); +static DEVICE_ATTR_RO(port_number); static int usb_serial_device_probe(struct device *dev) { diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c index afb50eab2049..c69bb50d4663 100644 --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -151,11 +151,7 @@ static int usb_console_setup(struct console *co, char *options) /* only call the device specific open if this * is the first time the port is opened */ - if (serial->type->open) - retval = serial->type->open(NULL, port); - else - retval = usb_serial_generic_open(NULL, port); - + retval = serial->type->open(NULL, port); if (retval) { dev_err(&port->dev, "could not open USB console port\n"); goto fail; @@ -210,10 +206,10 @@ static void usb_console_write(struct console *co, if (count == 0) return; - pr_debug("%s - minor %d, %d byte(s)\n", __func__, port->minor, count); + dev_dbg(&port->dev, "%s - %d byte(s)\n", __func__, count); if (!port->port.console) { - pr_debug("%s - port not opened\n", __func__); + dev_dbg(&port->dev, "%s - port not opened\n", __func__); return; } @@ -230,21 +226,14 @@ static void usb_console_write(struct console *co, } /* pass on to the driver specific version of this function if it is available */ - if (serial->type->write) - retval = serial->type->write(NULL, port, buf, i); - else - retval = usb_serial_generic_write(NULL, port, buf, i); - pr_debug("%s - return value : %d\n", __func__, retval); + retval = serial->type->write(NULL, port, buf, i); + dev_dbg(&port->dev, "%s - write: %d\n", __func__, retval); if (lf) { /* append CR after LF */ unsigned char cr = 13; - if (serial->type->write) - retval = serial->type->write(NULL, - port, &cr, 1); - else - retval = usb_serial_generic_write(NULL, - port, &cr, 1); - pr_debug("%s - return value : %d\n", __func__, retval); + retval = serial->type->write(NULL, port, &cr, 1); + dev_dbg(&port->dev, "%s - write cr: %d\n", + __func__, retval); } buf += i; count -= i; diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 0eae4ba3760e..6987b535aa98 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -670,9 +670,6 @@ static void cp210x_set_termios(struct tty_struct *tty, unsigned int bits; unsigned int modem_ctl[4]; - if (!tty) - return; - cflag = tty->termios.c_cflag; old_cflag = old_termios->c_cflag; diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index e948dc02795d..558605d646f3 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -495,6 +495,8 @@ static int cypress_generic_port_probe(struct usb_serial_port *port) } usb_set_serial_port_data(port, priv); + port->port.drain_delay = 256; + return 0; } @@ -625,7 +627,7 @@ static int cypress_open(struct tty_struct *tty, struct usb_serial_port *port) __func__, result); cypress_set_dead(port); } - port->port.drain_delay = 256; + return result; } /* cypress_open */ diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index 75e85cbf9e8b..639a18fb67e6 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -207,7 +207,6 @@ static int f81232_open(struct tty_struct *tty, struct usb_serial_port *port) return result; } - port->port.drain_delay = 256; return 0; } @@ -322,6 +321,8 @@ static int f81232_port_probe(struct usb_serial_port *port) usb_set_serial_port_data(port, priv); + port->port.drain_delay = 256; + return 0; } diff --git a/drivers/usb/serial/flashloader.c b/drivers/usb/serial/flashloader.c deleted file mode 100644 index e6f5c10e891c..000000000000 --- a/drivers/usb/serial/flashloader.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Infineon Flashloader driver - * - * Copyright (C) 2013 Wei Shuai <cpuwolf@gmail.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> -#include <linux/uaccess.h> - -static const struct usb_device_id id_table[] = { - { USB_DEVICE(0x8087, 0x0716) }, - { }, -}; -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_serial_driver flashloader_device = { - .driver = { - .owner = THIS_MODULE, - .name = "flashloader", - }, - .id_table = id_table, - .num_ports = 1, -}; - -static struct usb_serial_driver * const serial_drivers[] = { - &flashloader_device, NULL -}; - -module_usb_serial_driver(serial_drivers, id_table); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index b65e657c641d..c45f9c0a1b34 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -51,8 +51,6 @@ #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr, Johan Hovold <jhovold@gmail.com>" #define DRIVER_DESC "USB FTDI Serial Converters Driver" -static __u16 vendor = FTDI_VID; -static __u16 product; struct ftdi_private { enum ftdi_chip_type chip_type; @@ -144,8 +142,8 @@ static struct ftdi_sio_quirk ftdi_8u2232c_quirk = { /* - * Device ID not listed? Test via module params product/vendor or - * /sys/bus/usb/ftdi_sio/new_id, then send patch/report! + * Device ID not listed? Test it using + * /sys/bus/usb-serial/drivers/ftdi_sio/new_id and send a patch or report. */ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_ZEITCONTROL_TAGTRACE_MIFARE_PID) }, @@ -906,7 +904,6 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) }, /* Crucible Devices */ { USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) }, - { }, /* Optional parameter entry */ { } /* Terminating entry */ }; @@ -930,9 +927,6 @@ static const char *ftdi_chip_name[] = { #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) /* End TIOCMIWAIT */ -#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ - | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) - /* function prototypes for a FTDI serial converter */ static int ftdi_sio_probe(struct usb_serial *serial, const struct usb_device_id *id); @@ -999,10 +993,6 @@ static struct usb_serial_driver * const serial_drivers[] = { #define WDR_TIMEOUT 5000 /* default urb timeout */ #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ -/* High and low are for DTR, RTS etc etc */ -#define HIGH 1 -#define LOW 0 - /* * *************************************************************************** * Utility functions @@ -1571,8 +1561,8 @@ static void ftdi_set_max_packet_size(struct usb_serial_port *port) * *************************************************************************** */ -static ssize_t show_latency_timer(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t latency_timer_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_serial_port *port = to_usb_serial_port(dev); struct ftdi_private *priv = usb_get_serial_port_data(port); @@ -1582,11 +1572,10 @@ static ssize_t show_latency_timer(struct device *dev, return sprintf(buf, "%i\n", priv->latency); } - /* Write a new value of the latency timer, in units of milliseconds. */ -static ssize_t store_latency_timer(struct device *dev, - struct device_attribute *attr, const char *valbuf, - size_t count) +static ssize_t latency_timer_store(struct device *dev, + struct device_attribute *attr, + const char *valbuf, size_t count) { struct usb_serial_port *port = to_usb_serial_port(dev); struct ftdi_private *priv = usb_get_serial_port_data(port); @@ -1599,6 +1588,7 @@ static ssize_t store_latency_timer(struct device *dev, return -EIO; return count; } +static DEVICE_ATTR_RW(latency_timer); /* Write an event character directly to the FTDI register. The ASCII value is in the low 8 bits, with the enable bit in the 9th bit. */ @@ -1626,9 +1616,6 @@ static ssize_t store_event_char(struct device *dev, return count; } - -static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, - store_latency_timer); static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); static int create_sysfs_attrs(struct usb_serial_port *port) @@ -1867,7 +1854,6 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port) static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) { - struct ktermios dummy; struct usb_device *dev = port->serial->dev; struct ftdi_private *priv = usb_get_serial_port_data(port); @@ -1883,10 +1869,8 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) This is same behaviour as serial.c/rs_open() - Kuba */ /* ftdi_set_termios will send usb control messages */ - if (tty) { - memset(&dummy, 0, sizeof(dummy)); - ftdi_set_termios(tty, port, &dummy); - } + if (tty) + ftdi_set_termios(tty, port, NULL); return usb_serial_generic_open(tty, port); } @@ -2215,7 +2199,7 @@ no_data_parity_stop_changes: dev_err(ddev, "%s urb failed to set baudrate\n", __func__); mutex_unlock(&priv->cfg_lock); /* Ensure RTS and DTR are raised when baudrate changed from 0 */ - if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) + if (old_termios && (old_termios->c_cflag & CBAUD) == B0) set_mctrl(port, TIOCM_DTR | TIOCM_RTS); } @@ -2405,38 +2389,11 @@ static int ftdi_ioctl(struct tty_struct *tty, return -ENOIOCTLCMD; } -static int __init ftdi_init(void) -{ - if (vendor > 0 && product > 0) { - /* Add user specified VID/PID to reserved element of table. */ - int i; - for (i = 0; id_table_combined[i].idVendor; i++) - ; - id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; - id_table_combined[i].idVendor = vendor; - id_table_combined[i].idProduct = product; - } - return usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, id_table_combined); -} - -static void __exit ftdi_exit(void) -{ - usb_serial_deregister_drivers(serial_drivers); -} - - -module_init(ftdi_init); -module_exit(ftdi_exit); +module_usb_serial_driver(serial_drivers, id_table_combined); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); -module_param(vendor, ushort, 0); -MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" - __MODULE_STRING(FTDI_VID)")"); -module_param(product, ushort, 0); -MODULE_PARM_DESC(product, "User specified product ID"); - module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override"); diff --git a/drivers/usb/serial/funsoft.c b/drivers/usb/serial/funsoft.c deleted file mode 100644 index 9362f8fd2385..000000000000 --- a/drivers/usb/serial/funsoft.c +++ /dev/null @@ -1,40 +0,0 @@ -/* - * Funsoft Serial USB driver - * - * Copyright (C) 2006 Greg Kroah-Hartman <gregkh@suse.de> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> -#include <linux/uaccess.h> - -static const struct usb_device_id id_table[] = { - { USB_DEVICE(0x1404, 0xcddc) }, - { }, -}; -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_serial_driver funsoft_device = { - .driver = { - .owner = THIS_MODULE, - .name = "funsoft", - }, - .id_table = id_table, - .num_ports = 1, -}; - -static struct usb_serial_driver * const serial_drivers[] = { - &funsoft_device, NULL -}; - -module_usb_serial_driver(serial_drivers, id_table); - -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index ba45170c78e5..1f31e6b4c251 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -460,12 +460,7 @@ static bool usb_serial_generic_msr_changed(struct tty_struct *tty, /* * Use tty-port initialised flag to detect all hangups including the * one generated at USB-device disconnect. - * - * FIXME: Remove hupping check once tty_port_hangup calls shutdown - * (which clears the initialised flag) before wake up. */ - if (test_bit(TTY_HUPPING, &tty->flags)) - return true; if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) return true; @@ -496,12 +491,8 @@ int usb_serial_generic_tiocmiwait(struct tty_struct *tty, unsigned long arg) ret = wait_event_interruptible(port->port.delta_msr_wait, usb_serial_generic_msr_changed(tty, arg, &cnow)); - if (!ret) { - if (test_bit(TTY_HUPPING, &tty->flags)) - ret = -EIO; - if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) - ret = -EIO; - } + if (!ret && !test_bit(ASYNCB_INITIALIZED, &port->port.flags)) + ret = -EIO; return ret; } diff --git a/drivers/usb/serial/hp4x.c b/drivers/usb/serial/hp4x.c deleted file mode 100644 index 2cba60d90c79..000000000000 --- a/drivers/usb/serial/hp4x.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * HP4x Calculators Serial USB driver - * - * Copyright (C) 2005 Arthur Huillet (ahuillet@users.sf.net) - * Copyright (C) 2001-2005 Greg Kroah-Hartman (greg@kroah.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * See Documentation/usb/usb-serial.txt for more information on using this - * driver - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> - -#define DRIVER_DESC "HP4x (48/49) Generic Serial driver" - -#define HP_VENDOR_ID 0x03f0 -#define HP49GP_PRODUCT_ID 0x0121 - -static const struct usb_device_id id_table[] = { - { USB_DEVICE(HP_VENDOR_ID, HP49GP_PRODUCT_ID) }, - { } /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_serial_driver hp49gp_device = { - .driver = { - .owner = THIS_MODULE, - .name = "hp4X", - }, - .id_table = id_table, - .num_ports = 1, -}; - -static struct usb_serial_driver * const serial_drivers[] = { - &hp49gp_device, NULL -}; - -module_usb_serial_driver(serial_drivers, id_table); - -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index dc2803b5eb09..c91481d74a14 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -56,9 +56,7 @@ #define MAX_NAME_LEN 64 -#define CHASE_TIMEOUT (5*HZ) /* 5 seconds */ #define OPEN_TIMEOUT (5*HZ) /* 5 seconds */ -#define COMMAND_TIMEOUT (5*HZ) /* 5 seconds */ /* receive port state */ enum RXSTATE { diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 60054e72b75b..b7187bf32469 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -64,8 +64,6 @@ #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */ -#define EDGE_OUT_BUF_SIZE 1024 - /* Product information read from the Edgeport */ struct product_info { @@ -93,7 +91,6 @@ struct edgeport_port { spinlock_t ep_lock; int ep_read_urb_state; int ep_write_urb_in_use; - struct kfifo write_fifo; }; struct edgeport_serial { @@ -1732,22 +1729,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) return -ENODEV; port_number = port->port_number; - switch (port_number) { - case 0: - edge_port->uart_base = UMPMEM_BASE_UART1; - edge_port->dma_address = UMPD_OEDB1_ADDRESS; - break; - case 1: - edge_port->uart_base = UMPMEM_BASE_UART2; - edge_port->dma_address = UMPD_OEDB2_ADDRESS; - break; - default: - dev_err(&port->dev, "Unknown port number!!!\n"); - return -ENODEV; - } - - dev_dbg(&port->dev, "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", - __func__, port_number, edge_port->uart_base, edge_port->dma_address); dev = port->serial->dev; @@ -1872,8 +1853,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) ++edge_serial->num_ports_open; - port->port.drain_delay = 1; - goto release_es_lock; unlink_int_urb: @@ -1905,7 +1884,7 @@ static void edge_close(struct usb_serial_port *port) usb_kill_urb(port->write_urb); edge_port->ep_write_urb_in_use = 0; spin_lock_irqsave(&edge_port->ep_lock, flags); - kfifo_reset_out(&edge_port->write_fifo); + kfifo_reset_out(&port->write_fifo); spin_unlock_irqrestore(&edge_port->ep_lock, flags); dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); @@ -1939,7 +1918,7 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, if (edge_port->close_pending == 1) return -ENODEV; - count = kfifo_in_locked(&edge_port->write_fifo, data, count, + count = kfifo_in_locked(&port->write_fifo, data, count, &edge_port->ep_lock); edge_send(port, tty); @@ -1959,7 +1938,7 @@ static void edge_send(struct usb_serial_port *port, struct tty_struct *tty) return; } - count = kfifo_out(&edge_port->write_fifo, + count = kfifo_out(&port->write_fifo, port->write_urb->transfer_buffer, port->bulk_out_size); @@ -2007,7 +1986,7 @@ static int edge_write_room(struct tty_struct *tty) return 0; spin_lock_irqsave(&edge_port->ep_lock, flags); - room = kfifo_avail(&edge_port->write_fifo); + room = kfifo_avail(&port->write_fifo); spin_unlock_irqrestore(&edge_port->ep_lock, flags); dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); @@ -2024,7 +2003,7 @@ static int edge_chars_in_buffer(struct tty_struct *tty) return 0; spin_lock_irqsave(&edge_port->ep_lock, flags); - chars = kfifo_len(&edge_port->write_fifo); + chars = kfifo_len(&port->write_fifo); spin_unlock_irqrestore(&edge_port->ep_lock, flags); dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); @@ -2451,30 +2430,45 @@ static int edge_port_probe(struct usb_serial_port *port) if (!edge_port) return -ENOMEM; - ret = kfifo_alloc(&edge_port->write_fifo, EDGE_OUT_BUF_SIZE, - GFP_KERNEL); - if (ret) { - kfree(edge_port); - return -ENOMEM; - } - spin_lock_init(&edge_port->ep_lock); edge_port->port = port; edge_port->edge_serial = usb_get_serial_data(port->serial); edge_port->bUartMode = default_uart_mode; + switch (port->port_number) { + case 0: + edge_port->uart_base = UMPMEM_BASE_UART1; + edge_port->dma_address = UMPD_OEDB1_ADDRESS; + break; + case 1: + edge_port->uart_base = UMPMEM_BASE_UART2; + edge_port->dma_address = UMPD_OEDB2_ADDRESS; + break; + default: + dev_err(&port->dev, "unknown port number\n"); + ret = -ENODEV; + goto err; + } + + dev_dbg(&port->dev, + "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", + __func__, port->port_number, edge_port->uart_base, + edge_port->dma_address); + usb_set_serial_port_data(port, edge_port); ret = edge_create_sysfs_attrs(port); - if (ret) { - kfifo_free(&edge_port->write_fifo); - kfree(edge_port); - return ret; - } + if (ret) + goto err; port->port.closing_wait = msecs_to_jiffies(closing_wait * 10); + port->port.drain_delay = 1; return 0; +err: + kfree(edge_port); + + return ret; } static int edge_port_remove(struct usb_serial_port *port) @@ -2483,7 +2477,6 @@ static int edge_port_remove(struct usb_serial_port *port) edge_port = usb_get_serial_port_data(port); edge_remove_sysfs_attrs(port); - kfifo_free(&edge_port->write_fifo); kfree(edge_port); return 0; @@ -2491,7 +2484,7 @@ static int edge_port_remove(struct usb_serial_port *port) /* Sysfs Attributes */ -static ssize_t show_uart_mode(struct device *dev, +static ssize_t uart_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct usb_serial_port *port = to_usb_serial_port(dev); @@ -2500,7 +2493,7 @@ static ssize_t show_uart_mode(struct device *dev, return sprintf(buf, "%d\n", edge_port->bUartMode); } -static ssize_t store_uart_mode(struct device *dev, +static ssize_t uart_mode_store(struct device *dev, struct device_attribute *attr, const char *valbuf, size_t count) { struct usb_serial_port *port = to_usb_serial_port(dev); @@ -2516,9 +2509,7 @@ static ssize_t store_uart_mode(struct device *dev, return count; } - -static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, - store_uart_mode); +static DEVICE_ATTR_RW(uart_mode); static int edge_create_sysfs_attrs(struct usb_serial_port *port) { diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 790673e5faa7..57c439a24b5a 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -1130,7 +1130,7 @@ static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc) * Sysfs Attributes */ -static ssize_t show_vcc_mode(struct device *dev, +static ssize_t vcc_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct usb_serial_port *port = to_usb_serial_port(dev); @@ -1139,7 +1139,7 @@ static ssize_t show_vcc_mode(struct device *dev, return sprintf(buf, "%d\n", priv->vcc); } -static ssize_t store_vcc_mode(struct device *dev, +static ssize_t vcc_mode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct usb_serial_port *port = to_usb_serial_port(dev); @@ -1163,9 +1163,7 @@ static ssize_t store_vcc_mode(struct device *dev, fail_store_vcc_mode: return count; } - -static DEVICE_ATTR(vcc_mode, S_IRUSR | S_IWUSR, show_vcc_mode, - store_vcc_mode); +static DEVICE_ATTR_RW(vcc_mode); static int iuu_create_sysfs_attrs(struct usb_serial_port *port) { diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 58c17fdc85eb..d6960aebe246 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -50,23 +50,27 @@ #define INSTAT_BUFLEN 32 #define GLOCONT_BUFLEN 64 #define INDAT49W_BUFLEN 512 +#define IN_BUFLEN 64 +#define OUT_BUFLEN 64 +#define INACK_BUFLEN 1 +#define OUTCONT_BUFLEN 64 /* Per device and per port private data */ struct keyspan_serial_private { const struct keyspan_device_details *device_details; struct urb *instat_urb; - char instat_buf[INSTAT_BUFLEN]; + char *instat_buf; /* added to support 49wg, where data from all 4 ports comes in on 1 EP and high-speed supported */ struct urb *indat_urb; - char indat_buf[INDAT49W_BUFLEN]; + char *indat_buf; /* XXX this one probably will need a lock */ struct urb *glocont_urb; - char glocont_buf[GLOCONT_BUFLEN]; - char ctrl_buf[8]; /* for EP0 control message */ + char *glocont_buf; + char *ctrl_buf; /* for EP0 control message */ }; struct keyspan_port_private { @@ -81,18 +85,18 @@ struct keyspan_port_private { /* Input endpoints and buffer for this port */ struct urb *in_urbs[2]; - char in_buffer[2][64]; + char *in_buffer[2]; /* Output endpoints and buffer for this port */ struct urb *out_urbs[2]; - char out_buffer[2][64]; + char *out_buffer[2]; /* Input ack endpoint */ struct urb *inack_urb; - char inack_buffer[1]; + char *inack_buffer; /* Output control endpoint */ struct urb *outcont_urb; - char outcont_buffer[64]; + char *outcont_buffer; /* Settings for the port */ int baud; @@ -2313,6 +2317,22 @@ static int keyspan_startup(struct usb_serial *serial) return -ENOMEM; } + s_priv->instat_buf = kzalloc(INSTAT_BUFLEN, GFP_KERNEL); + if (!s_priv->instat_buf) + goto err_instat_buf; + + s_priv->indat_buf = kzalloc(INDAT49W_BUFLEN, GFP_KERNEL); + if (!s_priv->indat_buf) + goto err_indat_buf; + + s_priv->glocont_buf = kzalloc(GLOCONT_BUFLEN, GFP_KERNEL); + if (!s_priv->glocont_buf) + goto err_glocont_buf; + + s_priv->ctrl_buf = kzalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL); + if (!s_priv->ctrl_buf) + goto err_ctrl_buf; + s_priv->device_details = d_details; usb_set_serial_data(serial, s_priv); @@ -2330,6 +2350,17 @@ static int keyspan_startup(struct usb_serial *serial) } return 0; + +err_ctrl_buf: + kfree(s_priv->glocont_buf); +err_glocont_buf: + kfree(s_priv->indat_buf); +err_indat_buf: + kfree(s_priv->instat_buf); +err_instat_buf: + kfree(s_priv); + + return -ENOMEM; } static void keyspan_disconnect(struct usb_serial *serial) @@ -2353,6 +2384,11 @@ static void keyspan_release(struct usb_serial *serial) usb_free_urb(s_priv->indat_urb); usb_free_urb(s_priv->glocont_urb); + kfree(s_priv->ctrl_buf); + kfree(s_priv->glocont_buf); + kfree(s_priv->indat_buf); + kfree(s_priv->instat_buf); + kfree(s_priv); } @@ -2374,6 +2410,26 @@ static int keyspan_port_probe(struct usb_serial_port *port) if (!p_priv) return -ENOMEM; + for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) { + p_priv->in_buffer[i] = kzalloc(IN_BUFLEN, GFP_KERNEL); + if (!p_priv->in_buffer[i]) + goto err_in_buffer; + } + + for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) { + p_priv->out_buffer[i] = kzalloc(OUT_BUFLEN, GFP_KERNEL); + if (!p_priv->out_buffer[i]) + goto err_out_buffer; + } + + p_priv->inack_buffer = kzalloc(INACK_BUFLEN, GFP_KERNEL); + if (!p_priv->inack_buffer) + goto err_inack_buffer; + + p_priv->outcont_buffer = kzalloc(OUTCONT_BUFLEN, GFP_KERNEL); + if (!p_priv->outcont_buffer) + goto err_outcont_buffer; + p_priv->device_details = d_details; /* Setup values for the various callback routines */ @@ -2386,7 +2442,8 @@ static int keyspan_port_probe(struct usb_serial_port *port) for (i = 0; i <= d_details->indat_endp_flip; ++i, ++endp) { p_priv->in_urbs[i] = keyspan_setup_urb(serial, endp, USB_DIR_IN, port, - p_priv->in_buffer[i], 64, + p_priv->in_buffer[i], + IN_BUFLEN, cback->indat_callback); } /* outdat endpoints also have flip */ @@ -2394,25 +2451,41 @@ static int keyspan_port_probe(struct usb_serial_port *port) for (i = 0; i <= d_details->outdat_endp_flip; ++i, ++endp) { p_priv->out_urbs[i] = keyspan_setup_urb(serial, endp, USB_DIR_OUT, port, - p_priv->out_buffer[i], 64, + p_priv->out_buffer[i], + OUT_BUFLEN, cback->outdat_callback); } /* inack endpoint */ p_priv->inack_urb = keyspan_setup_urb(serial, d_details->inack_endpoints[port_num], USB_DIR_IN, port, - p_priv->inack_buffer, 1, + p_priv->inack_buffer, + INACK_BUFLEN, cback->inack_callback); /* outcont endpoint */ p_priv->outcont_urb = keyspan_setup_urb(serial, d_details->outcont_endpoints[port_num], USB_DIR_OUT, port, - p_priv->outcont_buffer, 64, + p_priv->outcont_buffer, + OUTCONT_BUFLEN, cback->outcont_callback); usb_set_serial_port_data(port, p_priv); return 0; + +err_outcont_buffer: + kfree(p_priv->inack_buffer); +err_inack_buffer: + for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) + kfree(p_priv->out_buffer[i]); +err_out_buffer: + for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) + kfree(p_priv->in_buffer[i]); +err_in_buffer: + kfree(p_priv); + + return -ENOMEM; } static int keyspan_port_remove(struct usb_serial_port *port) @@ -2436,6 +2509,13 @@ static int keyspan_port_remove(struct usb_serial_port *port) usb_free_urb(p_priv->out_urbs[i]); } + kfree(p_priv->outcont_buffer); + kfree(p_priv->inack_buffer); + for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) + kfree(p_priv->out_buffer[i]); + for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) + kfree(p_priv->in_buffer[i]); + kfree(p_priv); return 0; diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index b01300164fc0..84657e07dc5d 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -374,7 +374,7 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport, kfree(urbtrack); return -ENOMEM; } - urbtrack->setup = kmalloc(sizeof(*urbtrack->setup), GFP_KERNEL); + urbtrack->setup = kmalloc(sizeof(*urbtrack->setup), GFP_ATOMIC); if (!urbtrack->setup) { usb_free_urb(urbtrack->urb); kfree(urbtrack); @@ -382,8 +382,8 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport, } urbtrack->setup->bRequestType = (__u8)0x40; urbtrack->setup->bRequest = (__u8)0x0e; - urbtrack->setup->wValue = get_reg_value(reg, dummy); - urbtrack->setup->wIndex = get_reg_index(reg); + urbtrack->setup->wValue = cpu_to_le16(get_reg_value(reg, dummy)); + urbtrack->setup->wIndex = cpu_to_le16(get_reg_index(reg)); urbtrack->setup->wLength = 0; usb_fill_control_urb(urbtrack->urb, usbdev, usb_sndctrlpipe(usbdev, 0), diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 3bac4693c038..fdf953539c62 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -221,7 +221,6 @@ struct moschip_port { __u8 shadowMCR; /* last MCR value received */ char open; char open_ports; - wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ struct usb_serial_port *port; /* loop back to the owner of this object */ /* Offsets */ @@ -1100,9 +1099,6 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) mos7840_port->read_urb_busy = false; } - /* initialize our wait queues */ - init_waitqueue_head(&mos7840_port->wait_chase); - /* initialize our port settings */ /* Must set to enable ints! */ mos7840_port->shadowMCR = MCR_MASTER_IE; @@ -1228,47 +1224,6 @@ static void mos7840_close(struct usb_serial_port *port) mos7840_port->open = 0; } -/************************************************************************ - * - * mos7840_block_until_chase_response - * - * This function will block the close until one of the following: - * 1. Response to our Chase comes from mos7840 - * 2. A timeout of 10 seconds without activity has expired - * (1K of mos7840 data @ 2400 baud ==> 4 sec to empty) - * - ************************************************************************/ - -static void mos7840_block_until_chase_response(struct tty_struct *tty, - struct moschip_port *mos7840_port) -{ - int timeout = msecs_to_jiffies(1000); - int wait = 10; - int count; - - while (1) { - count = mos7840_chars_in_buffer(tty); - - /* Check for Buffer status */ - if (count <= 0) - return; - - /* Block the thread for a while */ - interruptible_sleep_on_timeout(&mos7840_port->wait_chase, - timeout); - /* No activity.. count down section */ - wait--; - if (wait == 0) { - dev_dbg(&mos7840_port->port->dev, "%s - TIMEOUT\n", __func__); - return; - } else { - /* Reset timeout value back to seconds */ - wait = 10; - } - } - -} - /***************************************************************************** * mos7840_break * this function sends a break to the port @@ -1292,9 +1247,6 @@ static void mos7840_break(struct tty_struct *tty, int break_state) if (mos7840_port == NULL) return; - /* flush and block until tx is empty */ - mos7840_block_until_chase_response(tty, mos7840_port); - if (break_state == -1) data = mos7840_port->shadowLCR | LCR_SET_BREAK; else diff --git a/drivers/usb/serial/moto_modem.c b/drivers/usb/serial/moto_modem.c deleted file mode 100644 index c5ff6c7795a6..000000000000 --- a/drivers/usb/serial/moto_modem.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Motorola USB Phone driver - * - * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * {sigh} - * Motorola should be using the CDC ACM USB spec, but instead - * they try to just "do their own thing"... This driver should handle a - * few phones in which a basic "dumb serial connection" is needed to be - * able to get a connection through to them. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> - -static const struct usb_device_id id_table[] = { - { USB_DEVICE(0x05c6, 0x3197) }, /* unknown Motorola phone */ - { USB_DEVICE(0x0c44, 0x0022) }, /* unknown Mororola phone */ - { USB_DEVICE(0x22b8, 0x2a64) }, /* Motorola KRZR K1m */ - { USB_DEVICE(0x22b8, 0x2c84) }, /* Motorola VE240 phone */ - { USB_DEVICE(0x22b8, 0x2c64) }, /* Motorola V950 phone */ - { }, -}; -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_serial_driver moto_device = { - .driver = { - .owner = THIS_MODULE, - .name = "moto-modem", - }, - .id_table = id_table, - .num_ports = 1, -}; - -static struct usb_serial_driver * const serial_drivers[] = { - &moto_device, NULL -}; - -module_usb_serial_driver(serial_drivers, id_table); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index 7e3e0782e51f..a2080ac7b7e5 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -343,6 +343,8 @@ static int oti6858_port_probe(struct usb_serial_port *port) usb_set_serial_port_data(port, priv); + port->port.drain_delay = 256; /* FIXME: check the FIFO length */ + return 0; } @@ -411,9 +413,6 @@ static void oti6858_set_termios(struct tty_struct *tty, __le16 divisor; int br; - if (!tty) - return; - cflag = tty->termios.c_cflag; spin_lock_irqsave(&priv->lock, flags); @@ -509,7 +508,6 @@ static void oti6858_set_termios(struct tty_struct *tty, static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port) { struct oti6858_private *priv = usb_get_serial_port_data(port); - struct ktermios tmp_termios; struct usb_serial *serial = port->serial; struct oti6858_control_pkt *buf; unsigned long flags; @@ -560,8 +558,8 @@ static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port) /* setup termios */ if (tty) - oti6858_set_termios(tty, port, &tmp_termios); - port->port.drain_delay = 256; /* FIXME: check the FIFO length */ + oti6858_set_termios(tty, port, NULL); + return 0; } diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index cb6bbed374f2..e7a84f0f5179 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -4,6 +4,11 @@ * Copyright (C) 2001-2007 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2003 IBM Corp. * + * Copyright (C) 2009, 2013 Frank Schäfer <fschaefer.oss@googlemail.com> + * - fixes, improvements and documentation for the baud rate encoding methods + * Copyright (C) 2013 Reinhard Max <max@suse.de> + * - fixes and improvements for the divisor based baud rate encoding method + * * Original driver for 2.2.x by anonymous * * This program is free software; you can redistribute it and/or @@ -29,6 +34,7 @@ #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> +#include <asm/unaligned.h> #include "pl2303.h" /* @@ -128,10 +134,17 @@ MODULE_DEVICE_TABLE(usb, id_table); enum pl2303_type { - type_0, /* don't know the difference between type 0 and */ - type_1, /* type 1, until someone from prolific tells us... */ - HX, /* HX version of the pl2303 chip */ + type_0, /* H version ? */ + type_1, /* H version ? */ + HX_TA, /* HX(A) / X(A) / TA version */ /* TODO: improve */ + HXD_EA_RA_SA, /* HXD / EA / RA / SA version */ /* TODO: improve */ + TB, /* TB version */ }; +/* + * NOTE: don't know the difference between type 0 and type 1, + * until someone from Prolific tells us... + * TODO: distinguish between X/HX, TA and HXD, EA, RA, SA variants + */ struct pl2303_serial_private { enum pl2303_type type; @@ -171,6 +184,7 @@ static int pl2303_startup(struct usb_serial *serial) { struct pl2303_serial_private *spriv; enum pl2303_type type = type_0; + char *type_str = "unknown (treating as type_0)"; unsigned char *buf; spriv = kzalloc(sizeof(*spriv), GFP_KERNEL); @@ -183,15 +197,38 @@ static int pl2303_startup(struct usb_serial *serial) return -ENOMEM; } - if (serial->dev->descriptor.bDeviceClass == 0x02) + if (serial->dev->descriptor.bDeviceClass == 0x02) { type = type_0; - else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) - type = HX; - else if (serial->dev->descriptor.bDeviceClass == 0x00) - type = type_1; - else if (serial->dev->descriptor.bDeviceClass == 0xFF) + type_str = "type_0"; + } else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) { + /* + * NOTE: The bcdDevice version is the only difference between + * the device descriptors of the X/HX, HXD, EA, RA, SA, TA, TB + */ + if (le16_to_cpu(serial->dev->descriptor.bcdDevice) == 0x300) { + type = HX_TA; + type_str = "X/HX/TA"; + } else if (le16_to_cpu(serial->dev->descriptor.bcdDevice) + == 0x400) { + type = HXD_EA_RA_SA; + type_str = "HXD/EA/RA/SA"; + } else if (le16_to_cpu(serial->dev->descriptor.bcdDevice) + == 0x500) { + type = TB; + type_str = "TB"; + } else { + dev_info(&serial->interface->dev, + "unknown/unsupported device type\n"); + kfree(spriv); + kfree(buf); + return -ENODEV; + } + } else if (serial->dev->descriptor.bDeviceClass == 0x00 + || serial->dev->descriptor.bDeviceClass == 0xFF) { type = type_1; - dev_dbg(&serial->interface->dev, "device type: %d\n", type); + type_str = "type_1"; + } + dev_dbg(&serial->interface->dev, "device type: %s\n", type_str); spriv->type = type; usb_set_serial_data(serial, spriv); @@ -206,10 +243,10 @@ static int pl2303_startup(struct usb_serial *serial) pl2303_vendor_read(0x8383, 0, serial, buf); pl2303_vendor_write(0, 1, serial); pl2303_vendor_write(1, 0, serial); - if (type == HX) - pl2303_vendor_write(2, 0x44, serial); - else + if (type == type_0 || type == type_1) pl2303_vendor_write(2, 0x24, serial); + else + pl2303_vendor_write(2, 0x44, serial); kfree(buf); return 0; @@ -235,6 +272,8 @@ static int pl2303_port_probe(struct usb_serial_port *port) usb_set_serial_port_data(port, priv); + port->port.drain_delay = 256; + return 0; } @@ -261,6 +300,175 @@ static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) return retval; } +static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type, + u8 buf[4]) +{ + /* + * NOTE: Only the values defined in baud_sup are supported ! + * => if unsupported values are set, the PL2303 seems to + * use 9600 baud (at least my PL2303X always does) + */ + const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, + 4800, 7200, 9600, 14400, 19200, 28800, 38400, + 57600, 115200, 230400, 460800, 614400, 921600, + 1228800, 2457600, 3000000, 6000000, 12000000 }; + /* + * NOTE: With the exception of type_0/1 devices, the following + * additional baud rates are supported (tested with HX rev. 3A only): + * 110*, 56000*, 128000, 134400, 161280, 201600, 256000*, 268800, + * 403200, 806400. (*: not HX) + * + * Maximum values: HXD, TB: 12000000; HX, TA: 6000000; + * type_0+1: 1228800; RA: 921600; SA: 115200 + * + * As long as we are not using this encoding method for anything else + * than the type_0+1 and HX chips, there is no point in complicating + * the code to support them. + */ + int i; + + /* Set baudrate to nearest supported value */ + for (i = 0; i < ARRAY_SIZE(baud_sup); ++i) { + if (baud_sup[i] > baud) + break; + } + if (i == ARRAY_SIZE(baud_sup)) + baud = baud_sup[i - 1]; + else if (i > 0 && (baud_sup[i] - baud) > (baud - baud_sup[i - 1])) + baud = baud_sup[i - 1]; + else + baud = baud_sup[i]; + /* Respect the chip type specific baud rate limits */ + /* + * FIXME: as long as we don't know how to distinguish between the + * HXD, EA, RA, and SA chip variants, allow the max. value of 12M. + */ + if (type == HX_TA) + baud = min_t(int, baud, 6000000); + else if (type == type_0 || type == type_1) + baud = min_t(int, baud, 1228800); + /* Direct (standard) baud rate encoding method */ + put_unaligned_le32(baud, buf); + + return baud; +} + +static int pl2303_baudrate_encode_divisor(int baud, enum pl2303_type type, + u8 buf[4]) +{ + /* + * Divisor based baud rate encoding method + * + * NOTE: it's not clear if the type_0/1 chips support this method + * + * divisor = 12MHz * 32 / baudrate = 2^A * B + * + * with + * + * A = buf[1] & 0x0e + * B = buf[0] + (buf[1] & 0x01) << 8 + * + * Special cases: + * => 8 < B < 16: device seems to work not properly + * => B <= 8: device uses the max. value B = 512 instead + */ + unsigned int A, B; + + /* + * NOTE: The Windows driver allows maximum baud rates of 110% of the + * specified maximium value. + * Quick tests with early (2004) HX (rev. A) chips suggest, that even + * higher baud rates (up to the maximum of 24M baud !) are working fine, + * but that should really be tested carefully in "real life" scenarios + * before removing the upper limit completely. + * Baud rates smaller than the specified 75 baud are definitely working + * fine. + */ + if (type == type_0 || type == type_1) + baud = min_t(int, baud, 1228800 * 1.1); + else if (type == HX_TA) + baud = min_t(int, baud, 6000000 * 1.1); + else if (type == HXD_EA_RA_SA) + /* HXD, EA: 12Mbps; RA: 1Mbps; SA: 115200 bps */ + /* + * FIXME: as long as we don't know how to distinguish between + * these chip variants, allow the max. of these values + */ + baud = min_t(int, baud, 12000000 * 1.1); + else if (type == TB) + baud = min_t(int, baud, 12000000 * 1.1); + /* Determine factors A and B */ + A = 0; + B = 12000000 * 32 / baud; /* 12MHz */ + B <<= 1; /* Add one bit for rounding */ + while (B > (512 << 1) && A <= 14) { + A += 2; + B >>= 2; + } + if (A > 14) { /* max. divisor = min. baudrate reached */ + A = 14; + B = 512; + /* => ~45.78 baud */ + } else { + B = (B + 1) >> 1; /* Round the last bit */ + } + /* Handle special cases */ + if (B == 512) + B = 0; /* also: 1 to 8 */ + else if (B < 16) + /* + * NOTE: With the current algorithm this happens + * only for A=0 and means that the min. divisor + * (respectively: the max. baudrate) is reached. + */ + B = 16; /* => 24 MBaud */ + /* Encode the baud rate */ + buf[3] = 0x80; /* Select divisor encoding method */ + buf[2] = 0; + buf[1] = (A & 0x0e); /* A */ + buf[1] |= ((B & 0x100) >> 8); /* MSB of B */ + buf[0] = B & 0xff; /* 8 LSBs of B */ + /* Calculate the actual/resulting baud rate */ + if (B <= 8) + B = 512; + baud = 12000000 * 32 / ((1 << A) * B); + + return baud; +} + +static void pl2303_encode_baudrate(struct tty_struct *tty, + struct usb_serial_port *port, + enum pl2303_type type, + u8 buf[4]) +{ + int baud; + + baud = tty_get_baud_rate(tty); + dev_dbg(&port->dev, "baud requested = %d\n", baud); + if (!baud) + return; + /* + * There are two methods for setting/encoding the baud rate + * 1) Direct method: encodes the baud rate value directly + * => supported by all chip types + * 2) Divisor based method: encodes a divisor to a base value (12MHz*32) + * => supported by HX chips (and likely not by type_0/1 chips) + * + * NOTE: Although the divisor based baud rate encoding method is much + * more flexible, some of the standard baud rate values can not be + * realized exactly. But the difference is very small (max. 0.2%) and + * the device likely uses the same baud rate generator for both methods + * so that there is likley no difference. + */ + if (type == type_0 || type == type_1) + baud = pl2303_baudrate_encode_direct(baud, type, buf); + else + baud = pl2303_baudrate_encode_divisor(baud, type, buf); + /* Save resulting baud rate */ + tty_encode_baud_rate(tty, baud, baud); + dev_dbg(&port->dev, "baud set = %d\n", baud); +} + static void pl2303_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { @@ -268,27 +476,18 @@ static void pl2303_set_termios(struct tty_struct *tty, struct pl2303_serial_private *spriv = usb_get_serial_data(serial); struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; - unsigned int cflag; unsigned char *buf; - int baud; int i; u8 control; - const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, - 4800, 7200, 9600, 14400, 19200, 28800, 38400, - 57600, 115200, 230400, 460800, 500000, 614400, - 921600, 1228800, 2457600, 3000000, 6000000 }; - int baud_floor, baud_ceil; - int k; - - /* The PL2303 is reported to lose bytes if you change - serial settings even to the same values as before. Thus - we actually need to filter in this specific case */ + /* + * The PL2303 is reported to lose bytes if you change serial settings + * even to the same values as before. Thus we actually need to filter + * in this specific case. + */ if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios)) return; - cflag = tty->termios.c_cflag; - buf = kzalloc(7, GFP_KERNEL); if (!buf) { dev_err(&port->dev, "%s - out of memory.\n", __func__); @@ -303,8 +502,8 @@ static void pl2303_set_termios(struct tty_struct *tty, 0, 0, buf, 7, 100); dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %7ph\n", i, buf); - if (cflag & CSIZE) { - switch (cflag & CSIZE) { + if (C_CSIZE(tty)) { + switch (C_CSIZE(tty)) { case CS5: buf[6] = 5; break; @@ -317,73 +516,22 @@ static void pl2303_set_termios(struct tty_struct *tty, default: case CS8: buf[6] = 8; - break; } dev_dbg(&port->dev, "data bits = %d\n", buf[6]); } - /* For reference buf[0]:buf[3] baud rate value */ - /* NOTE: Only the values defined in baud_sup are supported ! - * => if unsupported values are set, the PL2303 seems to use - * 9600 baud (at least my PL2303X always does) - */ - baud = tty_get_baud_rate(tty); - dev_dbg(&port->dev, "baud requested = %d\n", baud); - if (baud) { - /* Set baudrate to nearest supported value */ - for (k=0; k<ARRAY_SIZE(baud_sup); k++) { - if (baud_sup[k] / baud) { - baud_ceil = baud_sup[k]; - if (k==0) { - baud = baud_ceil; - } else { - baud_floor = baud_sup[k-1]; - if ((baud_ceil % baud) - > (baud % baud_floor)) - baud = baud_floor; - else - baud = baud_ceil; - } - break; - } - } - if (baud > 1228800) { - /* type_0, type_1 only support up to 1228800 baud */ - if (spriv->type != HX) - baud = 1228800; - else if (baud > 6000000) - baud = 6000000; - } - dev_dbg(&port->dev, "baud set = %d\n", baud); - if (baud <= 115200) { - buf[0] = baud & 0xff; - buf[1] = (baud >> 8) & 0xff; - buf[2] = (baud >> 16) & 0xff; - buf[3] = (baud >> 24) & 0xff; - } else { - /* apparently the formula for higher speeds is: - * baudrate = 12M * 32 / (2^buf[1]) / buf[0] - */ - unsigned tmp = 12*1000*1000*32 / baud; - buf[3] = 0x80; - buf[2] = 0; - buf[1] = (tmp >= 256); - while (tmp >= 256) { - tmp >>= 2; - buf[1] <<= 1; - } - buf[0] = tmp; - } - } + /* For reference: buf[0]:buf[3] baud rate value */ + pl2303_encode_baudrate(tty, port, spriv->type, buf); /* For reference buf[4]=0 is 1 stop bits */ /* For reference buf[4]=1 is 1.5 stop bits */ /* For reference buf[4]=2 is 2 stop bits */ - if (cflag & CSTOPB) { - /* NOTE: Comply with "real" UARTs / RS232: + if (C_CSTOPB(tty)) { + /* + * NOTE: Comply with "real" UARTs / RS232: * use 1.5 instead of 2 stop bits with 5 data bits */ - if ((cflag & CSIZE) == CS5) { + if (C_CSIZE(tty) == CS5) { buf[4] = 1; dev_dbg(&port->dev, "stop bits = 1.5\n"); } else { @@ -395,14 +543,14 @@ static void pl2303_set_termios(struct tty_struct *tty, dev_dbg(&port->dev, "stop bits = 1\n"); } - if (cflag & PARENB) { + if (C_PARENB(tty)) { /* For reference buf[5]=0 is none parity */ /* For reference buf[5]=1 is odd parity */ /* For reference buf[5]=2 is even parity */ /* For reference buf[5]=3 is mark parity */ /* For reference buf[5]=4 is space parity */ - if (cflag & PARODD) { - if (cflag & CMSPAR) { + if (C_PARODD(tty)) { + if (tty->termios.c_cflag & CMSPAR) { buf[5] = 3; dev_dbg(&port->dev, "parity = mark\n"); } else { @@ -410,7 +558,7 @@ static void pl2303_set_termios(struct tty_struct *tty, dev_dbg(&port->dev, "parity = odd\n"); } } else { - if (cflag & CMSPAR) { + if (tty->termios.c_cflag & CMSPAR) { buf[5] = 4; dev_dbg(&port->dev, "parity = space\n"); } else { @@ -431,7 +579,7 @@ static void pl2303_set_termios(struct tty_struct *tty, /* change control lines if we are switching to or from B0 */ spin_lock_irqsave(&priv->lock, flags); control = priv->line_control; - if ((cflag & CBAUD) == B0) + if (C_BAUD(tty) == B0) priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); else if (old_termios && (old_termios->c_cflag & CBAUD) == B0) priv->line_control |= (CONTROL_DTR | CONTROL_RTS); @@ -443,26 +591,21 @@ static void pl2303_set_termios(struct tty_struct *tty, spin_unlock_irqrestore(&priv->lock, flags); } - buf[0] = buf[1] = buf[2] = buf[3] = buf[4] = buf[5] = buf[6] = 0; - + memset(buf, 0, 7); i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, 0, 0, buf, 7, 100); dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %7ph\n", i, buf); - if (cflag & CRTSCTS) { - if (spriv->type == HX) - pl2303_vendor_write(0x0, 0x61, serial); - else + if (C_CRTSCTS(tty)) { + if (spriv->type == type_0 || spriv->type == type_1) pl2303_vendor_write(0x0, 0x41, serial); + else + pl2303_vendor_write(0x0, 0x61, serial); } else { pl2303_vendor_write(0x0, 0x0, serial); } - /* Save resulting baud rate */ - if (baud) - tty_encode_baud_rate(tty, baud, baud); - kfree(buf); } @@ -495,7 +638,7 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) struct pl2303_serial_private *spriv = usb_get_serial_data(serial); int result; - if (spriv->type != HX) { + if (spriv->type == type_0 || spriv->type == type_1) { usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); } else { @@ -521,7 +664,6 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) return result; } - port->port.drain_delay = 256; return 0; } @@ -789,8 +931,10 @@ static void pl2303_process_read_urb(struct urb *urb) tty_flag = TTY_PARITY; else if (line_status & UART_FRAME_ERROR) tty_flag = TTY_FRAME; - dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, tty_flag); + if (tty_flag != TTY_NORMAL) + dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, + tty_flag); /* overrun is special, not associated with a char */ if (line_status & UART_OVERRUN_ERROR) tty_insert_flip_char(&port->port, 0, TTY_OVERRUN); diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index d99743290fc1..a24d59ae4032 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -62,6 +62,7 @@ #define MAX_BAUD_RATE 921600 #define DEFAULT_BAUD_RATE 9600 +#define QT2_READ_BUFFER_SIZE 512 /* size of read buffer */ #define QT2_WRITE_BUFFER_SIZE 512 /* size of write buffer */ #define QT2_WRITE_CONTROL_SIZE 5 /* control bytes used for a write */ @@ -112,7 +113,7 @@ struct qt2_serial_private { unsigned char current_port; /* current port for incoming data */ struct urb *read_urb; /* shared among all ports */ - char read_buffer[512]; + char *read_buffer; }; struct qt2_port_private { @@ -121,7 +122,7 @@ struct qt2_port_private { spinlock_t urb_lock; bool urb_in_use; struct urb *write_urb; - char write_buffer[QT2_WRITE_BUFFER_SIZE]; + char *write_buffer; spinlock_t lock; u8 shadowLSR; @@ -142,6 +143,7 @@ static void qt2_release(struct usb_serial *serial) serial_priv = usb_get_serial_data(serial); usb_free_urb(serial_priv->read_urb); + kfree(serial_priv->read_buffer); kfree(serial_priv); } @@ -683,7 +685,7 @@ static int qt2_setup_urbs(struct usb_serial *serial) usb_rcvbulkpipe(serial->dev, port0->bulk_in_endpointAddress), serial_priv->read_buffer, - sizeof(serial_priv->read_buffer), + QT2_READ_BUFFER_SIZE, qt2_read_bulk_callback, serial); status = usb_submit_urb(serial_priv->read_urb, GFP_KERNEL); @@ -718,6 +720,12 @@ static int qt2_attach(struct usb_serial *serial) return -ENOMEM; } + serial_priv->read_buffer = kmalloc(QT2_READ_BUFFER_SIZE, GFP_KERNEL); + if (!serial_priv->read_buffer) { + status = -ENOMEM; + goto err_buf; + } + usb_set_serial_data(serial, serial_priv); status = qt2_setup_urbs(serial); @@ -727,6 +735,8 @@ static int qt2_attach(struct usb_serial *serial) return 0; attach_failed: + kfree(serial_priv->read_buffer); +err_buf: kfree(serial_priv); return status; } @@ -745,21 +755,29 @@ static int qt2_port_probe(struct usb_serial_port *port) spin_lock_init(&port_priv->urb_lock); port_priv->port = port; + port_priv->write_buffer = kmalloc(QT2_WRITE_BUFFER_SIZE, GFP_KERNEL); + if (!port_priv->write_buffer) + goto err_buf; + port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!port_priv->write_urb) { - kfree(port_priv); - return -ENOMEM; - } + if (!port_priv->write_urb) + goto err_urb; + bEndpointAddress = serial->port[0]->bulk_out_endpointAddress; usb_fill_bulk_urb(port_priv->write_urb, serial->dev, usb_sndbulkpipe(serial->dev, bEndpointAddress), port_priv->write_buffer, - sizeof(port_priv->write_buffer), + QT2_WRITE_BUFFER_SIZE, qt2_write_bulk_callback, port); usb_set_serial_port_data(port, port_priv); return 0; +err_urb: + kfree(port_priv->write_buffer); +err_buf: + kfree(port_priv); + return -ENOMEM; } static int qt2_port_remove(struct usb_serial_port *port) @@ -768,6 +786,7 @@ static int qt2_port_remove(struct usb_serial_port *port) port_priv = usb_get_serial_port_data(port); usb_free_urb(port_priv->write_urb); + kfree(port_priv->write_buffer); kfree(port_priv); return 0; diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index 21cd7bf2a8cc..ba895989d8c4 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -92,13 +92,6 @@ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); -static __u16 vendor; /* no default */ -static __u16 product; /* no default */ -module_param(vendor, ushort, 0); -MODULE_PARM_DESC(vendor, "User specified USB idVendor (required)"); -module_param(product, ushort, 0); -MODULE_PARM_DESC(product, "User specified USB idProduct (required)"); - module_param(safe, bool, 0); MODULE_PARM_DESC(safe, "Turn Safe Encapsulation On/Off"); @@ -140,8 +133,6 @@ static struct usb_device_id id_table[] = { {MY_USB_DEVICE(0x4dd, 0x8003, CDC_DEVICE_CLASS, LINEO_INTERFACE_CLASS, LINEO_INTERFACE_SUBCLASS_SAFESERIAL)}, /* Collie */ {MY_USB_DEVICE(0x4dd, 0x8004, CDC_DEVICE_CLASS, LINEO_INTERFACE_CLASS, LINEO_INTERFACE_SUBCLASS_SAFESERIAL)}, /* Collie */ {MY_USB_DEVICE(0x5f9, 0xffff, CDC_DEVICE_CLASS, LINEO_INTERFACE_CLASS, LINEO_INTERFACE_SUBCLASS_SAFESERIAL)}, /* Sharp tmp */ - /* extra null entry for module vendor/produc parameters */ - {MY_USB_DEVICE(0, 0, CDC_DEVICE_CLASS, LINEO_INTERFACE_CLASS, LINEO_INTERFACE_SUBCLASS_SAFESERIAL)}, {} /* terminating entry */ }; @@ -272,7 +263,19 @@ static int safe_prepare_write_buffer(struct usb_serial_port *port, static int safe_startup(struct usb_serial *serial) { - switch (serial->interface->cur_altsetting->desc.bInterfaceProtocol) { + struct usb_interface_descriptor *desc; + + if (serial->dev->descriptor.bDeviceClass != CDC_DEVICE_CLASS) + return -ENODEV; + + desc = &serial->interface->cur_altsetting->desc; + + if (desc->bInterfaceClass != LINEO_INTERFACE_CLASS) + return -ENODEV; + if (desc->bInterfaceSubClass != LINEO_INTERFACE_SUBCLASS_SAFESERIAL) + return -ENODEV; + + switch (desc->bInterfaceProtocol) { case LINEO_SAFESERIAL_CRC: break; case LINEO_SAFESERIAL_CRC_PADDED: @@ -300,30 +303,4 @@ static struct usb_serial_driver * const serial_drivers[] = { &safe_device, NULL }; -static int __init safe_init(void) -{ - int i; - - /* if we have vendor / product parameters patch them into id list */ - if (vendor || product) { - pr_info("vendor: %x product: %x\n", vendor, product); - - for (i = 0; i < ARRAY_SIZE(id_table); i++) { - if (!id_table[i].idVendor && !id_table[i].idProduct) { - id_table[i].idVendor = vendor; - id_table[i].idProduct = product; - break; - } - } - } - - return usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, id_table); -} - -static void __exit safe_exit(void) -{ - usb_serial_deregister_drivers(serial_drivers); -} - -module_init(safe_init); -module_exit(safe_exit); +module_usb_serial_driver(serial_drivers, id_table); diff --git a/drivers/usb/serial/siemens_mpi.c b/drivers/usb/serial/siemens_mpi.c deleted file mode 100644 index a76b1ae54a2a..000000000000 --- a/drivers/usb/serial/siemens_mpi.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Siemens USB-MPI Serial USB driver - * - * Copyright (C) 2005 Thomas Hergenhahn <thomas.hergenhahn@suse.de> - * Copyright (C) 2005,2008 Greg Kroah-Hartman <gregkh@suse.de> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> - -#define DRIVER_AUTHOR "Thomas Hergenhahn@web.de http://libnodave.sf.net" -#define DRIVER_DESC "Driver for Siemens USB/MPI adapter" - - -static const struct usb_device_id id_table[] = { - /* Vendor and product id for 6ES7-972-0CB20-0XA0 */ - { USB_DEVICE(0x908, 0x0004) }, - { }, -}; -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_serial_driver siemens_usb_mpi_device = { - .driver = { - .owner = THIS_MODULE, - .name = "siemens_mpi", - }, - .id_table = id_table, - .num_ports = 1, -}; - -static struct usb_serial_driver * const serial_drivers[] = { - &siemens_usb_mpi_device, NULL -}; - -module_usb_serial_driver(serial_drivers, id_table); - -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index ddf6c47137dc..4abac28b5992 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -169,6 +169,8 @@ static int spcp8x5_port_probe(struct usb_serial_port *port) usb_set_serial_port_data(port, priv); + port->port.drain_delay = 256; + return 0; } @@ -411,8 +413,6 @@ static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) if (tty) spcp8x5_set_termios(tty, port, NULL); - port->port.drain_delay = 256; - return usb_serial_generic_open(tty, port); } diff --git a/drivers/usb/serial/suunto.c b/drivers/usb/serial/suunto.c deleted file mode 100644 index 2248e7a7d5ad..000000000000 --- a/drivers/usb/serial/suunto.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - * Suunto ANT+ USB Driver - * - * Copyright (C) 2013 Greg Kroah-Hartman <gregkh@linuxfoundation.org> - * Copyright (C) 2013 Linux Foundation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation only. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> -#include <linux/uaccess.h> - -static const struct usb_device_id id_table[] = { - { USB_DEVICE(0x0fcf, 0x1008) }, - { }, -}; -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_serial_driver suunto_device = { - .driver = { - .owner = THIS_MODULE, - .name = KBUILD_MODNAME, - }, - .id_table = id_table, - .num_ports = 1, -}; - -static struct usb_serial_driver * const serial_drivers[] = { - &suunto_device, - NULL, -}; - -module_usb_serial_driver(serial_drivers, id_table); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 5c9f9b1d7736..760b78560f67 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -45,8 +45,6 @@ #define TI_FIRMWARE_BUF_SIZE 16284 -#define TI_WRITE_BUF_SIZE 1024 - #define TI_TRANSFER_TIMEOUT 2 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ @@ -71,13 +69,11 @@ struct ti_port { __u8 tp_uart_mode; /* 232 or 485 modes */ unsigned int tp_uart_base_addr; int tp_flags; - wait_queue_head_t tp_write_wait; struct ti_device *tp_tdev; struct usb_serial_port *tp_port; spinlock_t tp_lock; int tp_read_urb_state; int tp_write_urb_in_use; - struct kfifo write_fifo; }; struct ti_device { @@ -145,20 +141,9 @@ static int ti_download_firmware(struct ti_device *tdev); /* module parameters */ static int closing_wait = TI_DEFAULT_CLOSING_WAIT; -static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT]; -static unsigned int vendor_3410_count; -static ushort product_3410[TI_EXTRA_VID_PID_COUNT]; -static unsigned int product_3410_count; -static ushort vendor_5052[TI_EXTRA_VID_PID_COUNT]; -static unsigned int vendor_5052_count; -static ushort product_5052[TI_EXTRA_VID_PID_COUNT]; -static unsigned int product_5052_count; /* supported devices */ -/* the array dimension is the number of default entries plus */ -/* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */ -/* null entry */ -static struct usb_device_id ti_id_table_3410[15+TI_EXTRA_VID_PID_COUNT+1] = { +static struct usb_device_id ti_id_table_3410[] = { { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, @@ -175,16 +160,18 @@ static struct usb_device_id ti_id_table_3410[15+TI_EXTRA_VID_PID_COUNT+1] = { { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) }, { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, + { } /* terminator */ }; -static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = { +static struct usb_device_id ti_id_table_5052[] = { { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, + { } /* terminator */ }; -static struct usb_device_id ti_id_table_combined[19+2*TI_EXTRA_VID_PID_COUNT+1] = { +static struct usb_device_id ti_id_table_combined[] = { { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, @@ -204,7 +191,7 @@ static struct usb_device_id ti_id_table_combined[19+2*TI_EXTRA_VID_PID_COUNT+1] { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, - { } + { } /* terminator */ }; static struct usb_serial_driver ti_1port_device = { @@ -293,61 +280,12 @@ module_param(closing_wait, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain in close, in .01 secs, default is 4000"); -module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO); -MODULE_PARM_DESC(vendor_3410, - "Vendor ids for 3410 based devices, 1-5 short integers"); -module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO); -MODULE_PARM_DESC(product_3410, - "Product ids for 3410 based devices, 1-5 short integers"); -module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO); -MODULE_PARM_DESC(vendor_5052, - "Vendor ids for 5052 based devices, 1-5 short integers"); -module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO); -MODULE_PARM_DESC(product_5052, - "Product ids for 5052 based devices, 1-5 short integers"); - MODULE_DEVICE_TABLE(usb, ti_id_table_combined); +module_usb_serial_driver(serial_drivers, ti_id_table_combined); /* Functions */ -static int __init ti_init(void) -{ - int i, j, c; - - /* insert extra vendor and product ids */ - c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1; - j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1; - for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++, c++) { - ti_id_table_3410[j].idVendor = vendor_3410[i]; - ti_id_table_3410[j].idProduct = product_3410[i]; - ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; - ti_id_table_combined[c].idVendor = vendor_3410[i]; - ti_id_table_combined[c].idProduct = product_3410[i]; - ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; - } - j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1; - for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++, c++) { - ti_id_table_5052[j].idVendor = vendor_5052[i]; - ti_id_table_5052[j].idProduct = product_5052[i]; - ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; - ti_id_table_combined[c].idVendor = vendor_5052[i]; - ti_id_table_combined[c].idProduct = product_5052[i]; - ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; - } - - return usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined); -} - -static void __exit ti_exit(void) -{ - usb_serial_deregister_drivers(serial_drivers); -} - -module_init(ti_init); -module_exit(ti_exit); - - static int ti_startup(struct usb_serial *serial) { struct ti_device *tdev; @@ -430,17 +368,14 @@ static int ti_port_probe(struct usb_serial_port *port) else tport->tp_uart_base_addr = TI_UART2_BASE_ADDR; port->port.closing_wait = msecs_to_jiffies(10 * closing_wait); - init_waitqueue_head(&tport->tp_write_wait); - if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, GFP_KERNEL)) { - kfree(tport); - return -ENOMEM; - } tport->tp_port = port; tport->tp_tdev = usb_get_serial_data(port->serial); tport->tp_uart_mode = 0; /* default is RS232 */ usb_set_serial_port_data(port, tport); + port->port.drain_delay = 3; + return 0; } @@ -449,7 +384,6 @@ static int ti_port_remove(struct usb_serial_port *port) struct ti_port *tport; tport = usb_get_serial_port_data(port); - kfifo_free(&tport->write_fifo); kfree(tport); return 0; @@ -582,8 +516,6 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) tport->tp_is_open = 1; ++tdev->td_open_port_count; - port->port.drain_delay = 3; - goto release_lock; unlink_int_urb: @@ -616,7 +548,7 @@ static void ti_close(struct usb_serial_port *port) usb_kill_urb(port->write_urb); tport->tp_write_urb_in_use = 0; spin_lock_irqsave(&tport->tp_lock, flags); - kfifo_reset_out(&tport->write_fifo); + kfifo_reset_out(&port->write_fifo); spin_unlock_irqrestore(&tport->tp_lock, flags); port_number = port->port_number; @@ -655,7 +587,7 @@ static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, if (tport == NULL || !tport->tp_is_open) return -ENODEV; - count = kfifo_in_locked(&tport->write_fifo, data, count, + count = kfifo_in_locked(&port->write_fifo, data, count, &tport->tp_lock); ti_send(tport); @@ -674,7 +606,7 @@ static int ti_write_room(struct tty_struct *tty) return 0; spin_lock_irqsave(&tport->tp_lock, flags); - room = kfifo_avail(&tport->write_fifo); + room = kfifo_avail(&port->write_fifo); spin_unlock_irqrestore(&tport->tp_lock, flags); dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); @@ -693,7 +625,7 @@ static int ti_chars_in_buffer(struct tty_struct *tty) return 0; spin_lock_irqsave(&tport->tp_lock, flags); - chars = kfifo_len(&tport->write_fifo); + chars = kfifo_len(&port->write_fifo); spin_unlock_irqrestore(&tport->tp_lock, flags); dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); @@ -1090,13 +1022,11 @@ static void ti_bulk_in_callback(struct urb *urb) case -ESHUTDOWN: dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); tport->tp_tdev->td_urb_error = 1; - wake_up_interruptible(&tport->tp_write_wait); return; default: dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status); tport->tp_tdev->td_urb_error = 1; - wake_up_interruptible(&tport->tp_write_wait); } if (status == -EPIPE) @@ -1152,13 +1082,11 @@ static void ti_bulk_out_callback(struct urb *urb) case -ESHUTDOWN: dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status); tport->tp_tdev->td_urb_error = 1; - wake_up_interruptible(&tport->tp_write_wait); return; default: dev_err_console(port, "%s - nonzero urb status, %d\n", __func__, status); tport->tp_tdev->td_urb_error = 1; - wake_up_interruptible(&tport->tp_write_wait); } /* send any buffered data */ @@ -1197,7 +1125,7 @@ static void ti_send(struct ti_port *tport) if (tport->tp_write_urb_in_use) goto unlock; - count = kfifo_out(&tport->write_fifo, + count = kfifo_out(&port->write_fifo, port->write_urb->transfer_buffer, port->bulk_out_size); @@ -1232,7 +1160,6 @@ static void ti_send(struct ti_port *tport) /* more room in the buffer for new writes, wakeup */ tty_port_tty_wakeup(&port->port); - wake_up_interruptible(&tport->tp_write_wait); return; unlock: spin_unlock_irqrestore(&tport->tp_lock, flags); @@ -1312,7 +1239,7 @@ static int ti_get_serial_info(struct ti_port *tport, ret_serial.line = port->minor; ret_serial.port = port->port_number; ret_serial.flags = tport->tp_flags; - ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE; + ret_serial.xmit_fifo_size = kfifo_size(&port->write_fifo); ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; ret_serial.closing_wait = cwait; diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c new file mode 100644 index 000000000000..52eb91f2eb2a --- /dev/null +++ b/drivers/usb/serial/usb-serial-simple.c @@ -0,0 +1,110 @@ +/* + * USB Serial "Simple" driver + * + * Copyright (C) 2001-2006,2008,2013 Greg Kroah-Hartman <greg@kroah.com> + * Copyright (C) 2005 Arthur Huillet (ahuillet@users.sf.net) + * Copyright (C) 2005 Thomas Hergenhahn <thomas.hergenhahn@suse.de> + * Copyright (C) 2009 Outpost Embedded, LLC + * Copyright (C) 2010 Zilogic Systems <code@zilogic.com> + * Copyright (C) 2013 Wei Shuai <cpuwolf@gmail.com> + * Copyright (C) 2013 Linux Foundation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/tty.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/usb/serial.h> + +#define DEVICE(vendor, IDS) \ +static const struct usb_device_id vendor##_id_table[] = { \ + IDS(), \ + { }, \ +}; \ +static struct usb_serial_driver vendor##_device = { \ + .driver = { \ + .owner = THIS_MODULE, \ + .name = #vendor, \ + }, \ + .id_table = vendor##_id_table, \ + .num_ports = 1, \ +}; + + +/* ZIO Motherboard USB driver */ +#define ZIO_IDS() \ + { USB_DEVICE(0x1CBE, 0x0103) } +DEVICE(zio, ZIO_IDS); + +/* Funsoft Serial USB driver */ +#define FUNSOFT_IDS() \ + { USB_DEVICE(0x1404, 0xcddc) } +DEVICE(funsoft, FUNSOFT_IDS); + +/* Infineon Flashloader driver */ +#define FLASHLOADER_IDS() \ + { USB_DEVICE(0x8087, 0x0716) } +DEVICE(flashloader, FLASHLOADER_IDS); + +/* ViVOpay USB Serial Driver */ +#define VIVOPAY_IDS() \ + { USB_DEVICE(0x1d5f, 0x1004) } /* ViVOpay 8800 */ +DEVICE(vivopay, VIVOPAY_IDS); + +/* Motorola USB Phone driver */ +#define MOTO_IDS() \ + { USB_DEVICE(0x05c6, 0x3197) }, /* unknown Motorola phone */ \ + { USB_DEVICE(0x0c44, 0x0022) }, /* unknown Mororola phone */ \ + { USB_DEVICE(0x22b8, 0x2a64) }, /* Motorola KRZR K1m */ \ + { USB_DEVICE(0x22b8, 0x2c84) }, /* Motorola VE240 phone */ \ + { USB_DEVICE(0x22b8, 0x2c64) } /* Motorola V950 phone */ +DEVICE(moto_modem, MOTO_IDS); + +/* HP4x (48/49) Generic Serial driver */ +#define HP4X_IDS() \ + { USB_DEVICE(0x03f0, 0x0121) } +DEVICE(hp4x, HP4X_IDS); + +/* Suunto ANT+ USB Driver */ +#define SUUNTO_IDS() \ + { USB_DEVICE(0x0fcf, 0x1008) } +DEVICE(suunto, SUUNTO_IDS); + +/* Siemens USB/MPI adapter */ +#define SIEMENS_IDS() \ + { USB_DEVICE(0x908, 0x0004) } +DEVICE(siemens_mpi, SIEMENS_IDS); + +/* All of the above structures mushed into two lists */ +static struct usb_serial_driver * const serial_drivers[] = { + &zio_device, + &funsoft_device, + &flashloader_device, + &vivopay_device, + &moto_modem_device, + &hp4x_device, + &suunto_device, + &siemens_mpi_device, + NULL +}; + +static const struct usb_device_id id_table[] = { + ZIO_IDS(), + FUNSOFT_IDS(), + FLASHLOADER_IDS(), + VIVOPAY_IDS(), + MOTO_IDS(), + HP4X_IDS(), + SUUNTO_IDS(), + SIEMENS_IDS(), + { }, +}; +MODULE_DEVICE_TABLE(usb, id_table); + +module_usb_serial_driver(serial_drivers, id_table); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index cb27fcb2fc90..6091bd5a1f4f 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -681,20 +681,10 @@ static int serial_port_carrier_raised(struct tty_port *port) static void serial_port_dtr_rts(struct tty_port *port, int on) { struct usb_serial_port *p = container_of(port, struct usb_serial_port, port); - struct usb_serial *serial = p->serial; - struct usb_serial_driver *drv = serial->type; + struct usb_serial_driver *drv = p->serial->type; - if (!drv->dtr_rts) - return; - /* - * Work-around bug in the tty-layer which can result in dtr_rts - * being called after a disconnect (and tty_unregister_device - * has returned). Remove once bug has been squashed. - */ - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) + if (drv->dtr_rts) drv->dtr_rts(p, on); - mutex_unlock(&serial->disc_mutex); } static const struct tty_port_operations serial_port_ops = { diff --git a/drivers/usb/serial/vivopay-serial.c b/drivers/usb/serial/vivopay-serial.c deleted file mode 100644 index 6299526ff8c3..000000000000 --- a/drivers/usb/serial/vivopay-serial.c +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Copyright (C) 2001-2005 Greg Kroah-Hartman (greg@kroah.com) - * Copyright (C) 2009 Outpost Embedded, LLC - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> - -#define DRIVER_DESC "ViVOpay USB Serial Driver" - -#define VIVOPAY_VENDOR_ID 0x1d5f - - -static struct usb_device_id id_table [] = { - /* ViVOpay 8800 */ - { USB_DEVICE(VIVOPAY_VENDOR_ID, 0x1004) }, - { }, -}; - -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_serial_driver vivopay_serial_device = { - .driver = { - .owner = THIS_MODULE, - .name = "vivopay-serial", - }, - .id_table = id_table, - .num_ports = 1, -}; - -static struct usb_serial_driver * const serial_drivers[] = { - &vivopay_serial_device, NULL -}; - -module_usb_serial_driver(serial_drivers, id_table); - -MODULE_AUTHOR("Forest Bond <forest.bond@outpostembedded.com>"); -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/zio.c b/drivers/usb/serial/zio.c deleted file mode 100644 index c043aa84a0ba..000000000000 --- a/drivers/usb/serial/zio.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * ZIO Motherboard USB driver - * - * Copyright (C) 2010 Zilogic Systems <code@zilogic.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> -#include <linux/uaccess.h> - -static const struct usb_device_id id_table[] = { - { USB_DEVICE(0x1CBE, 0x0103) }, - { }, -}; -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_serial_driver zio_device = { - .driver = { - .owner = THIS_MODULE, - .name = "zio", - }, - .id_table = id_table, - .num_ports = 1, -}; - -static struct usb_serial_driver * const serial_drivers[] = { - &zio_device, NULL -}; - -module_usb_serial_driver(serial_drivers, id_table); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 92b05d95ec5e..94d75edef77f 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -496,7 +496,7 @@ US_DO_ALL_FLAGS ***********************************************************************/ /* Output routine for the sysfs max_sectors file */ -static ssize_t show_max_sectors(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t max_sectors_show(struct device *dev, struct device_attribute *attr, char *buf) { struct scsi_device *sdev = to_scsi_device(dev); @@ -504,7 +504,7 @@ static ssize_t show_max_sectors(struct device *dev, struct device_attribute *att } /* Input routine for the sysfs max_sectors file */ -static ssize_t store_max_sectors(struct device *dev, struct device_attribute *attr, const char *buf, +static ssize_t max_sectors_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct scsi_device *sdev = to_scsi_device(dev); @@ -514,16 +514,14 @@ static ssize_t store_max_sectors(struct device *dev, struct device_attribute *at blk_queue_max_hw_sectors(sdev->request_queue, ms); return count; } - return -EINVAL; + return -EINVAL; } - -static DEVICE_ATTR(max_sectors, S_IRUGO | S_IWUSR, show_max_sectors, - store_max_sectors); +static DEVICE_ATTR_RW(max_sectors); static struct device_attribute *sysfs_device_attr_list[] = { - &dev_attr_max_sectors, - NULL, - }; + &dev_attr_max_sectors, + NULL, +}; /* * this defines our host template, with which we'll allocate hosts diff --git a/drivers/usb/usb-common.c b/drivers/usb/usb-common.c index 675384dabfe9..d771870a819e 100644 --- a/drivers/usb/usb-common.c +++ b/drivers/usb/usb-common.c @@ -43,20 +43,20 @@ const char *usb_otg_state_string(enum usb_otg_state state) } EXPORT_SYMBOL_GPL(usb_otg_state_string); +static const char *const speed_names[] = { + [USB_SPEED_UNKNOWN] = "UNKNOWN", + [USB_SPEED_LOW] = "low-speed", + [USB_SPEED_FULL] = "full-speed", + [USB_SPEED_HIGH] = "high-speed", + [USB_SPEED_WIRELESS] = "wireless", + [USB_SPEED_SUPER] = "super-speed", +}; + const char *usb_speed_string(enum usb_device_speed speed) { - static const char *const names[] = { - [USB_SPEED_UNKNOWN] = "UNKNOWN", - [USB_SPEED_LOW] = "low-speed", - [USB_SPEED_FULL] = "full-speed", - [USB_SPEED_HIGH] = "high-speed", - [USB_SPEED_WIRELESS] = "wireless", - [USB_SPEED_SUPER] = "super-speed", - }; - - if (speed < 0 || speed >= ARRAY_SIZE(names)) + if (speed < 0 || speed >= ARRAY_SIZE(speed_names)) speed = USB_SPEED_UNKNOWN; - return names[speed]; + return speed_names[speed]; } EXPORT_SYMBOL_GPL(usb_speed_string); @@ -112,6 +112,33 @@ enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np) return USB_DR_MODE_UNKNOWN; } EXPORT_SYMBOL_GPL(of_usb_get_dr_mode); + +/** + * of_usb_get_maximum_speed - Get maximum requested speed for a given USB + * controller. + * @np: Pointer to the given device_node + * + * The function gets the maximum speed string from property "maximum-speed", + * and returns the corresponding enum usb_device_speed. + */ +enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np) +{ + const char *maximum_speed; + int err; + int i; + + err = of_property_read_string(np, "maximum-speed", &maximum_speed); + if (err < 0) + return USB_SPEED_UNKNOWN; + + for (i = 0; i < ARRAY_SIZE(speed_names); i++) + if (strcmp(maximum_speed, speed_names[i]) == 0) + return i; + + return USB_SPEED_UNKNOWN; +} +EXPORT_SYMBOL_GPL(of_usb_get_maximum_speed); + #endif MODULE_LICENSE("GPL"); diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c index 7ed3b039dbe8..ff97652343a3 100644 --- a/drivers/usb/usb-skeleton.c +++ b/drivers/usb/usb-skeleton.c @@ -325,9 +325,8 @@ retry: rv = skel_do_read_io(dev, count); if (rv < 0) goto exit; - else if (!(file->f_flags & O_NONBLOCK)) + else goto retry; - rv = -EAGAIN; } exit: mutex_unlock(&dev->io_mutex); diff --git a/drivers/usb/wusbcore/rh.c b/drivers/usb/wusbcore/rh.c index bdb0cc3046b5..fe8bc777ab88 100644 --- a/drivers/usb/wusbcore/rh.c +++ b/drivers/usb/wusbcore/rh.c @@ -141,18 +141,26 @@ static int wusbhc_rh_port_reset(struct wusbhc *wusbhc, u8 port_idx) int wusbhc_rh_status_data(struct usb_hcd *usb_hcd, char *_buf) { struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - size_t cnt, size; - unsigned long *buf = (unsigned long *) _buf; + size_t cnt, size, bits_set = 0; /* WE DON'T LOCK, see comment */ - size = wusbhc->ports_max + 1 /* hub bit */; - size = (size + 8 - 1) / 8; /* round to bytes */ - for (cnt = 0; cnt < wusbhc->ports_max; cnt++) - if (wusb_port_by_idx(wusbhc, cnt)->change) - set_bit(cnt + 1, buf); - else - clear_bit(cnt + 1, buf); - return size; + /* round up to bytes. Hub bit is bit 0 so add 1. */ + size = DIV_ROUND_UP(wusbhc->ports_max + 1, 8); + + /* clear the output buffer. */ + memset(_buf, 0, size); + /* set the bit for each changed port. */ + for (cnt = 0; cnt < wusbhc->ports_max; cnt++) { + + if (wusb_port_by_idx(wusbhc, cnt)->change) { + const int bitpos = cnt+1; + + _buf[bitpos/8] |= (1 << (bitpos % 8)); + bits_set++; + } + } + + return bits_set ? size : 0; } EXPORT_SYMBOL_GPL(wusbhc_rh_status_data); diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h index d6bea3e0b54a..cf250c21e946 100644 --- a/drivers/usb/wusbcore/wa-hc.h +++ b/drivers/usb/wusbcore/wa-hc.h @@ -91,6 +91,7 @@ struct wusbhc; struct wahc; extern void wa_urb_enqueue_run(struct work_struct *ws); +extern void wa_process_errored_transfers_run(struct work_struct *ws); /** * RPipe instance @@ -190,8 +191,14 @@ struct wahc { struct list_head xfer_list; struct list_head xfer_delayed_list; + struct list_head xfer_errored_list; + /* + * lock for the above xfer lists. Can be taken while a xfer->lock is + * held but not in the reverse order. + */ spinlock_t xfer_list_lock; - struct work_struct xfer_work; + struct work_struct xfer_enqueue_work; + struct work_struct xfer_error_work; atomic_t xfer_id_count; }; @@ -244,8 +251,10 @@ static inline void wa_init(struct wahc *wa) edc_init(&wa->dti_edc); INIT_LIST_HEAD(&wa->xfer_list); INIT_LIST_HEAD(&wa->xfer_delayed_list); + INIT_LIST_HEAD(&wa->xfer_errored_list); spin_lock_init(&wa->xfer_list_lock); - INIT_WORK(&wa->xfer_work, wa_urb_enqueue_run); + INIT_WORK(&wa->xfer_enqueue_work, wa_urb_enqueue_run); + INIT_WORK(&wa->xfer_error_work, wa_process_errored_transfers_run); atomic_set(&wa->xfer_id_count, 1); } @@ -269,6 +278,8 @@ static inline void rpipe_put(struct wa_rpipe *rpipe) } extern void rpipe_ep_disable(struct wahc *, struct usb_host_endpoint *); +extern void rpipe_clear_feature_stalled(struct wahc *, + struct usb_host_endpoint *); extern int wa_rpipes_create(struct wahc *); extern void wa_rpipes_destroy(struct wahc *); static inline void rpipe_avail_dec(struct wa_rpipe *rpipe) diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c index 9a595c1ed867..fd4f1ce6256a 100644 --- a/drivers/usb/wusbcore/wa-rpipe.c +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -527,3 +527,24 @@ void rpipe_ep_disable(struct wahc *wa, struct usb_host_endpoint *ep) mutex_unlock(&wa->rpipe_mutex); } EXPORT_SYMBOL_GPL(rpipe_ep_disable); + +/* Clear the stalled status of an RPIPE. */ +void rpipe_clear_feature_stalled(struct wahc *wa, struct usb_host_endpoint *ep) +{ + struct wa_rpipe *rpipe; + + mutex_lock(&wa->rpipe_mutex); + rpipe = ep->hcpriv; + if (rpipe != NULL) { + u16 index = le16_to_cpu(rpipe->descr.wRPipeIndex); + + usb_control_msg( + wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, + RPIPE_STALL, index, NULL, 0, 1000); + } + mutex_unlock(&wa->rpipe_mutex); +} +EXPORT_SYMBOL_GPL(rpipe_clear_feature_stalled); + diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index d3493ca0525d..6ad02f57c366 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -125,10 +125,13 @@ struct wa_seg { u8 xfer_extra[]; /* xtra space for xfer_hdr_ctl */ }; -static void wa_seg_init(struct wa_seg *seg) +static inline void wa_seg_init(struct wa_seg *seg) { - /* usb_init_urb() repeats a lot of work, so we do it here */ - kref_init(&seg->urb.kref); + usb_init_urb(&seg->urb); + + /* set the remaining memory to 0. */ + memset(((void *)seg) + sizeof(seg->urb), 0, + sizeof(*seg) - sizeof(seg->urb)); } /* @@ -166,8 +169,8 @@ static inline void wa_xfer_init(struct wa_xfer *xfer) /* * Destroy a transfer structure * - * Note that the xfer->seg[index] thingies follow the URB life cycle, - * so we need to put them, not free them. + * Note that freeing xfer->seg[cnt]->urb will free the containing + * xfer->seg[cnt] memory that was allocated by __wa_xfer_setup_segs. */ static void wa_xfer_destroy(struct kref *_xfer) { @@ -175,9 +178,8 @@ static void wa_xfer_destroy(struct kref *_xfer) if (xfer->seg) { unsigned cnt; for (cnt = 0; cnt < xfer->segs; cnt++) { - if (xfer->is_inbound) - usb_put_urb(xfer->seg[cnt]->dto_urb); - usb_put_urb(&xfer->seg[cnt]->urb); + usb_free_urb(xfer->seg[cnt]->dto_urb); + usb_free_urb(&xfer->seg[cnt]->urb); } } kfree(xfer); @@ -732,9 +734,9 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) buf_itr = 0; buf_size = xfer->urb->transfer_buffer_length; for (cnt = 0; cnt < xfer->segs; cnt++) { - seg = xfer->seg[cnt] = kzalloc(alloc_size, GFP_ATOMIC); + seg = xfer->seg[cnt] = kmalloc(alloc_size, GFP_ATOMIC); if (seg == NULL) - goto error_seg_kzalloc; + goto error_seg_kmalloc; wa_seg_init(seg); seg->xfer = xfer; seg->index = cnt; @@ -804,15 +806,17 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) return 0; error_sg_alloc: - kfree(seg->dto_urb); + usb_free_urb(xfer->seg[cnt]->dto_urb); error_dto_alloc: kfree(xfer->seg[cnt]); cnt--; -error_seg_kzalloc: +error_seg_kmalloc: /* use the fact that cnt is left at were it failed */ for (; cnt >= 0; cnt--) { - if (xfer->seg[cnt] && xfer->is_inbound == 0) + if (xfer->seg[cnt] && xfer->is_inbound == 0) { usb_free_urb(xfer->seg[cnt]->dto_urb); + kfree(xfer->seg[cnt]->dto_urb->sg); + } kfree(xfer->seg[cnt]); } error_segs_kzalloc: @@ -928,7 +932,7 @@ static void wa_xfer_delayed_run(struct wa_rpipe *rpipe) spin_lock_irqsave(&rpipe->seg_lock, flags); while (atomic_read(&rpipe->segs_available) > 0 && !list_empty(&rpipe->seg_list)) { - seg = list_entry(rpipe->seg_list.next, struct wa_seg, + seg = list_first_entry(&(rpipe->seg_list), struct wa_seg, list_node); list_del(&seg->list_node); xfer = seg->xfer; @@ -1093,34 +1097,82 @@ error_xfer_submit: * * We need to be careful here, as dequeue() could be called in the * middle. That's why we do the whole thing under the - * wa->xfer_list_lock. If dequeue() jumps in, it first locks urb->lock + * wa->xfer_list_lock. If dequeue() jumps in, it first locks xfer->lock * and then checks the list -- so as we would be acquiring in inverse - * order, we just drop the lock once we have the xfer and reacquire it - * later. + * order, we move the delayed list to a separate list while locked and then + * submit them without the list lock held. */ void wa_urb_enqueue_run(struct work_struct *ws) { - struct wahc *wa = container_of(ws, struct wahc, xfer_work); + struct wahc *wa = container_of(ws, struct wahc, xfer_enqueue_work); struct wa_xfer *xfer, *next; struct urb *urb; + LIST_HEAD(tmp_list); + /* Create a copy of the wa->xfer_delayed_list while holding the lock */ spin_lock_irq(&wa->xfer_list_lock); - list_for_each_entry_safe(xfer, next, &wa->xfer_delayed_list, - list_node) { + list_cut_position(&tmp_list, &wa->xfer_delayed_list, + wa->xfer_delayed_list.prev); + spin_unlock_irq(&wa->xfer_list_lock); + + /* + * enqueue from temp list without list lock held since wa_urb_enqueue_b + * can take xfer->lock as well as lock mutexes. + */ + list_for_each_entry_safe(xfer, next, &tmp_list, list_node) { list_del_init(&xfer->list_node); - spin_unlock_irq(&wa->xfer_list_lock); urb = xfer->urb; wa_urb_enqueue_b(xfer); usb_put_urb(urb); /* taken when queuing */ - - spin_lock_irq(&wa->xfer_list_lock); } - spin_unlock_irq(&wa->xfer_list_lock); } EXPORT_SYMBOL_GPL(wa_urb_enqueue_run); /* + * Process the errored transfers on the Wire Adapter outside of interrupt. + */ +void wa_process_errored_transfers_run(struct work_struct *ws) +{ + struct wahc *wa = container_of(ws, struct wahc, xfer_error_work); + struct wa_xfer *xfer, *next; + LIST_HEAD(tmp_list); + + pr_info("%s: Run delayed STALL processing.\n", __func__); + + /* Create a copy of the wa->xfer_errored_list while holding the lock */ + spin_lock_irq(&wa->xfer_list_lock); + list_cut_position(&tmp_list, &wa->xfer_errored_list, + wa->xfer_errored_list.prev); + spin_unlock_irq(&wa->xfer_list_lock); + + /* + * run rpipe_clear_feature_stalled from temp list without list lock + * held. + */ + list_for_each_entry_safe(xfer, next, &tmp_list, list_node) { + struct usb_host_endpoint *ep; + unsigned long flags; + struct wa_rpipe *rpipe; + + spin_lock_irqsave(&xfer->lock, flags); + ep = xfer->ep; + rpipe = ep->hcpriv; + spin_unlock_irqrestore(&xfer->lock, flags); + + /* clear RPIPE feature stalled without holding a lock. */ + rpipe_clear_feature_stalled(wa, ep); + + /* complete the xfer. This removes it from the tmp list. */ + wa_xfer_completion(xfer); + + /* check for work. */ + wa_xfer_delayed_run(rpipe); + } +} +EXPORT_SYMBOL_GPL(wa_process_errored_transfers_run); + +/* * Submit a transfer to the Wire Adapter in a delayed way * * The process of enqueuing involves possible sleeps() [see @@ -1175,7 +1227,7 @@ int wa_urb_enqueue(struct wahc *wa, struct usb_host_endpoint *ep, spin_lock_irqsave(&wa->xfer_list_lock, my_flags); list_add_tail(&xfer->list_node, &wa->xfer_delayed_list); spin_unlock_irqrestore(&wa->xfer_list_lock, my_flags); - queue_work(wusbd, &wa->xfer_work); + queue_work(wusbd, &wa->xfer_enqueue_work); } else { wa_urb_enqueue_b(xfer); } @@ -1217,7 +1269,8 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb) xfer = urb->hcpriv; if (xfer == NULL) { - /* NOthing setup yet enqueue will see urb->status != + /* + * Nothing setup yet enqueue will see urb->status != * -EINPROGRESS (by hcd layer) and bail out with * error, no need to do completion */ @@ -1361,7 +1414,7 @@ static int wa_xfer_status_to_errno(u8 status) * * inbound transfers: need to schedule a DTI read * - * FIXME: this functio needs to be broken up in parts + * FIXME: this function needs to be broken up in parts */ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer) { @@ -1483,17 +1536,37 @@ error_submit_buf_in: seg->result = result; kfree(wa->buf_in_urb->sg); error_sg_alloc: + __wa_xfer_abort(xfer); error_complete: seg->status = WA_SEG_ERROR; xfer->segs_done++; rpipe_ready = rpipe_avail_inc(rpipe); - __wa_xfer_abort(xfer); done = __wa_xfer_is_done(xfer); - spin_unlock_irqrestore(&xfer->lock, flags); - if (done) - wa_xfer_completion(xfer); - if (rpipe_ready) - wa_xfer_delayed_run(rpipe); + /* + * queue work item to clear STALL for control endpoints. + * Otherwise, let endpoint_reset take care of it. + */ + if (((usb_status & 0x3f) == WA_XFER_STATUS_HALTED) && + usb_endpoint_xfer_control(&xfer->ep->desc) && + done) { + + dev_info(dev, "Control EP stall. Queue delayed work.\n"); + spin_lock_irq(&wa->xfer_list_lock); + /* remove xfer from xfer_list. */ + list_del(&xfer->list_node); + /* add xfer to xfer_errored_list. */ + list_add_tail(&xfer->list_node, &wa->xfer_errored_list); + spin_unlock_irq(&wa->xfer_list_lock); + spin_unlock_irqrestore(&xfer->lock, flags); + queue_work(wusbd, &wa->xfer_error_work); + } else { + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + } + return; error_bad_seg: diff --git a/drivers/uwb/drp-ie.c b/drivers/uwb/drp-ie.c index 520673109a7e..b7d4f6b75eef 100644 --- a/drivers/uwb/drp-ie.c +++ b/drivers/uwb/drp-ie.c @@ -27,7 +27,7 @@ /* * Return the reason code for a reservations's DRP IE. */ -int uwb_rsv_reason_code(struct uwb_rsv *rsv) +static int uwb_rsv_reason_code(struct uwb_rsv *rsv) { static const int reason_codes[] = { [UWB_RSV_STATE_O_INITIATED] = UWB_DRP_REASON_ACCEPTED, @@ -55,7 +55,7 @@ int uwb_rsv_reason_code(struct uwb_rsv *rsv) /* * Return the reason code for a reservations's companion DRP IE . */ -int uwb_rsv_companion_reason_code(struct uwb_rsv *rsv) +static int uwb_rsv_companion_reason_code(struct uwb_rsv *rsv) { static const int companion_reason_codes[] = { [UWB_RSV_STATE_O_MOVE_EXPANDING] = UWB_DRP_REASON_ACCEPTED, diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c index 0621abef9b4a..0257f35cfb9d 100644 --- a/drivers/uwb/hwa-rc.c +++ b/drivers/uwb/hwa-rc.c @@ -611,7 +611,16 @@ static int hwarc_reset(struct uwb_rc *uwb_rc) { struct hwarc *hwarc = uwb_rc->priv; - return usb_reset_device(hwarc->usb_dev); + int result; + + /* device lock must be held when calling usb_reset_device. */ + result = usb_lock_device_for_reset(hwarc->usb_dev, NULL); + if (result >= 0) { + result = usb_reset_device(hwarc->usb_dev); + usb_unlock_device(hwarc->usb_dev); + } + + return result; } /** @@ -709,8 +718,10 @@ static int hwarc_neep_init(struct uwb_rc *rc) error_neep_submit: usb_free_urb(hwarc->neep_urb); + hwarc->neep_urb = NULL; error_urb_alloc: free_page((unsigned long)hwarc->rd_buffer); + hwarc->rd_buffer = NULL; error_rd_buffer: return -ENOMEM; } @@ -723,7 +734,10 @@ static void hwarc_neep_release(struct uwb_rc *rc) usb_kill_urb(hwarc->neep_urb); usb_free_urb(hwarc->neep_urb); + hwarc->neep_urb = NULL; + free_page((unsigned long)hwarc->rd_buffer); + hwarc->rd_buffer = NULL; } /** diff --git a/drivers/uwb/pal.c b/drivers/uwb/pal.c index 690577d2a35b..c1304b8d4985 100644 --- a/drivers/uwb/pal.c +++ b/drivers/uwb/pal.c @@ -68,8 +68,40 @@ int uwb_pal_register(struct uwb_pal *pal) } EXPORT_SYMBOL_GPL(uwb_pal_register); +static int find_rc(struct device *dev, const void *data) +{ + const struct uwb_rc *target_rc = data; + struct uwb_rc *rc = dev_get_drvdata(dev); + + if (rc == NULL) { + WARN_ON(1); + return 0; + } + if (rc == target_rc) { + if (rc->ready == 0) + return 0; + else + return 1; + } + return 0; +} + +/** + * Given a radio controller descriptor see if it is registered. + * + * @returns false if the rc does not exist or is quiescing; true otherwise. + */ +static bool uwb_rc_class_device_exists(struct uwb_rc *target_rc) +{ + struct device *dev; + + dev = class_find_device(&uwb_rc_class, NULL, target_rc, find_rc); + + return (dev != NULL); +} + /** - * uwb_pal_register - unregister a UWB PAL + * uwb_pal_unregister - unregister a UWB PAL * @pal: the PAL */ void uwb_pal_unregister(struct uwb_pal *pal) @@ -85,7 +117,11 @@ void uwb_pal_unregister(struct uwb_pal *pal) debugfs_remove(pal->debugfs_dir); if (pal->device) { - sysfs_remove_link(&rc->uwb_dev.dev.kobj, pal->name); + /* remove link to the PAL in the UWB device's directory. */ + if (uwb_rc_class_device_exists(rc)) + sysfs_remove_link(&rc->uwb_dev.dev.kobj, pal->name); + + /* remove link to uwb_rc in the PAL device's directory. */ sysfs_remove_link(&pal->device->kobj, "uwb_rc"); } } diff --git a/drivers/xen/events.c b/drivers/xen/events.c index a58ac435a9a4..5e8be462aed5 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -348,7 +348,7 @@ static void init_evtchn_cpu_bindings(void) for_each_possible_cpu(i) memset(per_cpu(cpu_evtchn_mask, i), - (i == 0) ? ~0 : 0, sizeof(*per_cpu(cpu_evtchn_mask, i))); + (i == 0) ? ~0 : 0, NR_EVENT_CHANNELS/8); } static inline void clear_evtchn(int port) @@ -1493,8 +1493,10 @@ void rebind_evtchn_irq(int evtchn, int irq) /* Rebind an evtchn so that it gets delivered to a specific cpu */ static int rebind_irq_to_cpu(unsigned irq, unsigned tcpu) { + struct shared_info *s = HYPERVISOR_shared_info; struct evtchn_bind_vcpu bind_vcpu; int evtchn = evtchn_from_irq(irq); + int masked; if (!VALID_EVTCHN(evtchn)) return -1; @@ -1511,6 +1513,12 @@ static int rebind_irq_to_cpu(unsigned irq, unsigned tcpu) bind_vcpu.vcpu = tcpu; /* + * Mask the event while changing the VCPU binding to prevent + * it being delivered on an unexpected VCPU. + */ + masked = sync_test_and_set_bit(evtchn, BM(s->evtchn_mask)); + + /* * If this fails, it usually just indicates that we're dealing with a * virq or IPI channel, which don't actually need to be rebound. Ignore * it, but don't do the xenlinux-level rebind in that case. @@ -1518,6 +1526,9 @@ static int rebind_irq_to_cpu(unsigned irq, unsigned tcpu) if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_vcpu, &bind_vcpu) >= 0) bind_evtchn_to_cpu(evtchn, tcpu); + if (!masked) + unmask_evtchn(evtchn); + return 0; } diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index 5e376bb93419..8defc6b3f9a2 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c @@ -40,7 +40,7 @@ struct inode *bfs_iget(struct super_block *sb, unsigned long ino) int block, off; inode = iget_locked(sb, ino); - if (IS_ERR(inode)) + if (!inode) return ERR_PTR(-ENOMEM); if (!(inode->i_state & I_NEW)) return inode; @@ -1045,12 +1045,22 @@ static int __bio_copy_iov(struct bio *bio, struct bio_vec *iovecs, int bio_uncopy_user(struct bio *bio) { struct bio_map_data *bmd = bio->bi_private; - int ret = 0; + struct bio_vec *bvec; + int ret = 0, i; - if (!bio_flagged(bio, BIO_NULL_MAPPED)) - ret = __bio_copy_iov(bio, bmd->iovecs, bmd->sgvecs, - bmd->nr_sgvecs, bio_data_dir(bio) == READ, - 0, bmd->is_our_pages); + if (!bio_flagged(bio, BIO_NULL_MAPPED)) { + /* + * if we're in a workqueue, the request is orphaned, so + * don't copy into a random user address space, just free. + */ + if (current->mm) + ret = __bio_copy_iov(bio, bmd->iovecs, bmd->sgvecs, + bmd->nr_sgvecs, bio_data_dir(bio) == READ, + 0, bmd->is_our_pages); + else if (bmd->is_our_pages) + bio_for_each_segment_all(bvec, bio, i) + __free_page(bvec->bv_page); + } bio_free_map_data(bmd); bio_put(bio); return ret; diff --git a/fs/dcache.c b/fs/dcache.c index 87bdb5329c3c..96655f4f4574 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -229,7 +229,7 @@ static void __d_free(struct rcu_head *head) */ static void d_free(struct dentry *dentry) { - BUG_ON(dentry->d_count); + BUG_ON(dentry->d_lockref.count); this_cpu_dec(nr_dentry); if (dentry->d_op && dentry->d_op->d_release) dentry->d_op->d_release(dentry); @@ -467,7 +467,7 @@ relock: } if (ref) - dentry->d_count--; + dentry->d_lockref.count--; /* * inform the fs via d_prune that this dentry is about to be * unhashed and destroyed. @@ -513,15 +513,10 @@ void dput(struct dentry *dentry) return; repeat: - if (dentry->d_count == 1) + if (dentry->d_lockref.count == 1) might_sleep(); - spin_lock(&dentry->d_lock); - BUG_ON(!dentry->d_count); - if (dentry->d_count > 1) { - dentry->d_count--; - spin_unlock(&dentry->d_lock); + if (lockref_put_or_lock(&dentry->d_lockref)) return; - } if (dentry->d_flags & DCACHE_OP_DELETE) { if (dentry->d_op->d_delete(dentry)) @@ -535,7 +530,7 @@ repeat: dentry->d_flags |= DCACHE_REFERENCED; dentry_lru_add(dentry); - dentry->d_count--; + dentry->d_lockref.count--; spin_unlock(&dentry->d_lock); return; @@ -590,7 +585,7 @@ int d_invalidate(struct dentry * dentry) * We also need to leave mountpoints alone, * directory or not. */ - if (dentry->d_count > 1 && dentry->d_inode) { + if (dentry->d_lockref.count > 1 && dentry->d_inode) { if (S_ISDIR(dentry->d_inode->i_mode) || d_mountpoint(dentry)) { spin_unlock(&dentry->d_lock); return -EBUSY; @@ -606,20 +601,33 @@ EXPORT_SYMBOL(d_invalidate); /* This must be called with d_lock held */ static inline void __dget_dlock(struct dentry *dentry) { - dentry->d_count++; + dentry->d_lockref.count++; } static inline void __dget(struct dentry *dentry) { - spin_lock(&dentry->d_lock); - __dget_dlock(dentry); - spin_unlock(&dentry->d_lock); + lockref_get(&dentry->d_lockref); } struct dentry *dget_parent(struct dentry *dentry) { + int gotref; struct dentry *ret; + /* + * Do optimistic parent lookup without any + * locking. + */ + rcu_read_lock(); + ret = ACCESS_ONCE(dentry->d_parent); + gotref = lockref_get_not_zero(&ret->d_lockref); + rcu_read_unlock(); + if (likely(gotref)) { + if (likely(ret == ACCESS_ONCE(dentry->d_parent))) + return ret; + dput(ret); + } + repeat: /* * Don't need rcu_dereference because we re-check it was correct under @@ -634,8 +642,8 @@ repeat: goto repeat; } rcu_read_unlock(); - BUG_ON(!ret->d_count); - ret->d_count++; + BUG_ON(!ret->d_lockref.count); + ret->d_lockref.count++; spin_unlock(&ret->d_lock); return ret; } @@ -718,7 +726,7 @@ restart: spin_lock(&inode->i_lock); hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) { spin_lock(&dentry->d_lock); - if (!dentry->d_count) { + if (!dentry->d_lockref.count) { __dget_dlock(dentry); __d_drop(dentry); spin_unlock(&dentry->d_lock); @@ -763,12 +771,8 @@ static void try_prune_one_dentry(struct dentry *dentry) /* Prune ancestors. */ dentry = parent; while (dentry) { - spin_lock(&dentry->d_lock); - if (dentry->d_count > 1) { - dentry->d_count--; - spin_unlock(&dentry->d_lock); + if (lockref_put_or_lock(&dentry->d_lockref)) return; - } dentry = dentry_kill(dentry, 1); } } @@ -793,7 +797,7 @@ static void shrink_dentry_list(struct list_head *list) * the LRU because of laziness during lookup. Do not free * it - just keep it off the LRU list. */ - if (dentry->d_count) { + if (dentry->d_lockref.count) { dentry_lru_del(dentry); spin_unlock(&dentry->d_lock); continue; @@ -913,7 +917,7 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry) dentry_lru_del(dentry); __d_shrink(dentry); - if (dentry->d_count != 0) { + if (dentry->d_lockref.count != 0) { printk(KERN_ERR "BUG: Dentry %p{i=%lx,n=%s}" " still in use (%d)" @@ -922,7 +926,7 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry) dentry->d_inode ? dentry->d_inode->i_ino : 0UL, dentry->d_name.name, - dentry->d_count, + dentry->d_lockref.count, dentry->d_sb->s_type->name, dentry->d_sb->s_id); BUG(); @@ -933,7 +937,7 @@ static void shrink_dcache_for_umount_subtree(struct dentry *dentry) list_del(&dentry->d_u.d_child); } else { parent = dentry->d_parent; - parent->d_count--; + parent->d_lockref.count--; list_del(&dentry->d_u.d_child); } @@ -981,7 +985,7 @@ void shrink_dcache_for_umount(struct super_block *sb) dentry = sb->s_root; sb->s_root = NULL; - dentry->d_count--; + dentry->d_lockref.count--; shrink_dcache_for_umount_subtree(dentry); while (!hlist_bl_empty(&sb->s_anon)) { @@ -1147,7 +1151,7 @@ resume: * loop in shrink_dcache_parent() might not make any progress * and loop forever. */ - if (dentry->d_count) { + if (dentry->d_lockref.count) { dentry_lru_del(dentry); } else if (!(dentry->d_flags & DCACHE_SHRINK_LIST)) { dentry_lru_move_list(dentry, dispose); @@ -1269,7 +1273,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name) smp_wmb(); dentry->d_name.name = dname; - dentry->d_count = 1; + dentry->d_lockref.count = 1; dentry->d_flags = 0; spin_lock_init(&dentry->d_lock); seqcount_init(&dentry->d_seq); @@ -1782,7 +1786,7 @@ static noinline enum slow_d_compare slow_dentry_cmp( * without taking d_lock and checking d_seq sequence count against @seq * returned here. * - * A refcount may be taken on the found dentry with the __d_rcu_to_refcount + * A refcount may be taken on the found dentry with the d_rcu_to_refcount * function. * * Alternatively, __d_lookup_rcu may be called again to look up the child of @@ -1970,7 +1974,7 @@ struct dentry *__d_lookup(const struct dentry *parent, const struct qstr *name) goto next; } - dentry->d_count++; + dentry->d_lockref.count++; found = dentry; spin_unlock(&dentry->d_lock); break; @@ -2069,7 +2073,7 @@ again: spin_lock(&dentry->d_lock); inode = dentry->d_inode; isdir = S_ISDIR(inode->i_mode); - if (dentry->d_count == 1) { + if (dentry->d_lockref.count == 1) { if (!spin_trylock(&inode->i_lock)) { spin_unlock(&dentry->d_lock); cpu_relax(); @@ -2724,6 +2728,17 @@ char *dynamic_dname(struct dentry *dentry, char *buffer, int buflen, return memcpy(buffer, temp, sz); } +char *simple_dname(struct dentry *dentry, char *buffer, int buflen) +{ + char *end = buffer + buflen; + /* these dentries are never renamed, so d_lock is not needed */ + if (prepend(&end, &buflen, " (deleted)", 11) || + prepend_name(&end, &buflen, &dentry->d_name) || + prepend(&end, &buflen, "/", 1)) + end = ERR_PTR(-ENAMETOOLONG); + return end; +} + /* * Write full pathname from the root of the filesystem into the buffer. */ @@ -2937,7 +2952,7 @@ resume: } if (!(dentry->d_flags & DCACHE_GENOCIDE)) { dentry->d_flags |= DCACHE_GENOCIDE; - dentry->d_count--; + dentry->d_lockref.count--; } spin_unlock(&dentry->d_lock); } @@ -2945,7 +2960,7 @@ resume: struct dentry *child = this_parent; if (!(this_parent->d_flags & DCACHE_GENOCIDE)) { this_parent->d_flags |= DCACHE_GENOCIDE; - this_parent->d_count--; + this_parent->d_lockref.count--; } this_parent = try_to_ascend(this_parent, locked, seq); if (!this_parent) diff --git a/fs/efs/inode.c b/fs/efs/inode.c index f3913eb2c474..d15ccf20f1b3 100644 --- a/fs/efs/inode.c +++ b/fs/efs/inode.c @@ -57,7 +57,7 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino) struct inode *inode; inode = iget_locked(super, ino); - if (IS_ERR(inode)) + if (!inode) return ERR_PTR(-ENOMEM); if (!(inode->i_state & I_NEW)) return inode; diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 9435384562a2..544a809819c3 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1838,14 +1838,14 @@ int __init gfs2_glock_init(void) glock_workqueue = alloc_workqueue("glock_workqueue", WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_FREEZABLE, 0); - if (IS_ERR(glock_workqueue)) - return PTR_ERR(glock_workqueue); + if (!glock_workqueue) + return -ENOMEM; gfs2_delete_workqueue = alloc_workqueue("delete_workqueue", WQ_MEM_RECLAIM | WQ_FREEZABLE, 0); - if (IS_ERR(gfs2_delete_workqueue)) { + if (!gfs2_delete_workqueue) { destroy_workqueue(glock_workqueue); - return PTR_ERR(gfs2_delete_workqueue); + return -ENOMEM; } register_shrinker(&glock_shrinker); diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 5f2e5224c51c..e2e0a90396e7 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -47,7 +47,8 @@ static void gfs2_ail_error(struct gfs2_glock *gl, const struct buffer_head *bh) * None of the buffers should be dirty, locked, or pinned. */ -static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync) +static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync, + unsigned int nr_revokes) { struct gfs2_sbd *sdp = gl->gl_sbd; struct list_head *head = &gl->gl_ail_list; @@ -57,7 +58,9 @@ static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync) gfs2_log_lock(sdp); spin_lock(&sdp->sd_ail_lock); - list_for_each_entry_safe(bd, tmp, head, bd_ail_gl_list) { + list_for_each_entry_safe_reverse(bd, tmp, head, bd_ail_gl_list) { + if (nr_revokes == 0) + break; bh = bd->bd_bh; if (bh->b_state & b_state) { if (fsync) @@ -65,6 +68,7 @@ static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync) gfs2_ail_error(gl, bh); } gfs2_trans_add_revoke(sdp, bd); + nr_revokes--; } GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count)); spin_unlock(&sdp->sd_ail_lock); @@ -91,7 +95,7 @@ static void gfs2_ail_empty_gl(struct gfs2_glock *gl) WARN_ON_ONCE(current->journal_info); current->journal_info = &tr; - __gfs2_ail_flush(gl, 0); + __gfs2_ail_flush(gl, 0, tr.tr_revokes); gfs2_trans_end(sdp); gfs2_log_flush(sdp, NULL); @@ -101,15 +105,19 @@ void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync) { struct gfs2_sbd *sdp = gl->gl_sbd; unsigned int revokes = atomic_read(&gl->gl_ail_count); + unsigned int max_revokes = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_log_descriptor)) / sizeof(u64); int ret; if (!revokes) return; - ret = gfs2_trans_begin(sdp, 0, revokes); + while (revokes > max_revokes) + max_revokes += (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64); + + ret = gfs2_trans_begin(sdp, 0, max_revokes); if (ret) return; - __gfs2_ail_flush(gl, fsync); + __gfs2_ail_flush(gl, fsync, max_revokes); gfs2_trans_end(sdp); gfs2_log_flush(sdp, NULL); } diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index bbb2715171cd..64915eeae5a7 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -594,7 +594,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry, } gfs2_glock_dq_uninit(ghs); if (IS_ERR(d)) - return PTR_RET(d); + return PTR_ERR(d); return error; } else if (error != -ENOENT) { goto fail_gunlock; @@ -1750,6 +1750,10 @@ static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name, struct gfs2_holder gh; int ret; + /* For selinux during lookup */ + if (gfs2_glock_is_locked_by_me(ip->i_gl)) + return generic_getxattr(dentry, name, data, size); + gfs2_holder_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); ret = gfs2_glock_nq(&gh); if (ret == 0) { diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c index e04d0e09ee7b..7b0f5043cf24 100644 --- a/fs/gfs2/main.c +++ b/fs/gfs2/main.c @@ -155,7 +155,7 @@ static int __init init_gfs2_fs(void) goto fail_wq; gfs2_control_wq = alloc_workqueue("gfs2_control", - WQ_NON_REENTRANT | WQ_UNBOUND | WQ_FREEZABLE, 0); + WQ_UNBOUND | WQ_FREEZABLE, 0); if (!gfs2_control_wq) goto fail_recovery; diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 34423978b170..d19b30ababf1 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -926,14 +926,8 @@ static int get_hstate_idx(int page_size_log) return h - hstates; } -static char *hugetlb_dname(struct dentry *dentry, char *buffer, int buflen) -{ - return dynamic_dname(dentry, buffer, buflen, "/%s (deleted)", - dentry->d_name.name); -} - static struct dentry_operations anon_ops = { - .d_dname = hugetlb_dname + .d_dname = simple_dname }; /* diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c index 8743ba9c6742..984c2bbf4f61 100644 --- a/fs/jfs/jfs_dtree.c +++ b/fs/jfs/jfs_dtree.c @@ -3047,6 +3047,14 @@ int jfs_readdir(struct file *file, struct dir_context *ctx) dir_index = (u32) ctx->pos; + /* + * NFSv4 reserves cookies 1 and 2 for . and .. so the value + * we return to the vfs is one greater than the one we use + * internally. + */ + if (dir_index) + dir_index--; + if (dir_index > 1) { struct dir_table_slot dirtab_slot; @@ -3086,7 +3094,7 @@ int jfs_readdir(struct file *file, struct dir_context *ctx) if (p->header.flag & BT_INTERNAL) { jfs_err("jfs_readdir: bad index table"); DT_PUTPAGE(mp); - ctx->pos = -1; + ctx->pos = DIREND; return 0; } } else { @@ -3094,14 +3102,14 @@ int jfs_readdir(struct file *file, struct dir_context *ctx) /* * self "." */ - ctx->pos = 0; + ctx->pos = 1; if (!dir_emit(ctx, ".", 1, ip->i_ino, DT_DIR)) return 0; } /* * parent ".." */ - ctx->pos = 1; + ctx->pos = 2; if (!dir_emit(ctx, "..", 2, PARENT(ip), DT_DIR)) return 0; @@ -3122,22 +3130,23 @@ int jfs_readdir(struct file *file, struct dir_context *ctx) /* * Legacy filesystem - OS/2 & Linux JFS < 0.3.6 * - * pn = index = 0: First entry "." - * pn = 0; index = 1: Second entry ".." + * pn = 0; index = 1: First entry "." + * pn = 0; index = 2: Second entry ".." * pn > 0: Real entries, pn=1 -> leftmost page * pn = index = -1: No more entries */ dtpos = ctx->pos; - if (dtpos == 0) { + if (dtpos < 2) { /* build "." entry */ + ctx->pos = 1; if (!dir_emit(ctx, ".", 1, ip->i_ino, DT_DIR)) return 0; - dtoffset->index = 1; + dtoffset->index = 2; ctx->pos = dtpos; } if (dtoffset->pn == 0) { - if (dtoffset->index == 1) { + if (dtoffset->index == 2) { /* build ".." entry */ if (!dir_emit(ctx, "..", 2, PARENT(ip), DT_DIR)) return 0; @@ -3228,6 +3237,12 @@ int jfs_readdir(struct file *file, struct dir_context *ctx) } jfs_dirent->position = unique_pos++; } + /* + * We add 1 to the index because we may + * use a value of 2 internally, and NFSv4 + * doesn't like that. + */ + jfs_dirent->position++; } else { jfs_dirent->position = dtpos; len = min(d_namleft, DTLHDRDATALEN_LEGACY); diff --git a/fs/namei.c b/fs/namei.c index 89a612e392eb..2c30c84d4ea1 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -494,6 +494,50 @@ static inline void unlock_rcu_walk(void) br_read_unlock(&vfsmount_lock); } +/* + * When we move over from the RCU domain to properly refcounted + * long-lived dentries, we need to check the sequence numbers + * we got before lookup very carefully. + * + * We cannot blindly increment a dentry refcount - even if it + * is not locked - if it is zero, because it may have gone + * through the final d_kill() logic already. + * + * So for a zero refcount, we need to get the spinlock (which is + * safe even for a dead dentry because the de-allocation is + * RCU-delayed), and check the sequence count under the lock. + * + * Once we have checked the sequence count, we know it is live, + * and since we hold the spinlock it cannot die from under us. + * + * In contrast, if the reference count wasn't zero, we can just + * increment the lockref without having to take the spinlock. + * Even if the sequence number ends up being stale, we haven't + * gone through the final dput() and killed the dentry yet. + */ +static inline int d_rcu_to_refcount(struct dentry *dentry, seqcount_t *validate, unsigned seq) +{ + int gotref; + + gotref = lockref_get_or_lock(&dentry->d_lockref); + + /* Does the sequence number still match? */ + if (read_seqcount_retry(validate, seq)) { + if (gotref) + dput(dentry); + else + spin_unlock(&dentry->d_lock); + return -ECHILD; + } + + /* Get the ref now, if we couldn't get it originally */ + if (!gotref) { + dentry->d_lockref.count++; + spin_unlock(&dentry->d_lock); + } + return 0; +} + /** * unlazy_walk - try to switch to ref-walk mode. * @nd: nameidata pathwalk data @@ -518,29 +562,28 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry) nd->root.dentry != fs->root.dentry) goto err_root; } - spin_lock(&parent->d_lock); + + /* + * For a negative lookup, the lookup sequence point is the parents + * sequence point, and it only needs to revalidate the parent dentry. + * + * For a positive lookup, we need to move both the parent and the + * dentry from the RCU domain to be properly refcounted. And the + * sequence number in the dentry validates *both* dentry counters, + * since we checked the sequence number of the parent after we got + * the child sequence number. So we know the parent must still + * be valid if the child sequence number is still valid. + */ if (!dentry) { - if (!__d_rcu_to_refcount(parent, nd->seq)) - goto err_parent; + if (d_rcu_to_refcount(parent, &parent->d_seq, nd->seq) < 0) + goto err_root; BUG_ON(nd->inode != parent->d_inode); } else { - if (dentry->d_parent != parent) + if (d_rcu_to_refcount(dentry, &dentry->d_seq, nd->seq) < 0) + goto err_root; + if (d_rcu_to_refcount(parent, &dentry->d_seq, nd->seq) < 0) goto err_parent; - spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED); - if (!__d_rcu_to_refcount(dentry, nd->seq)) - goto err_child; - /* - * If the sequence check on the child dentry passed, then - * the child has not been removed from its parent. This - * means the parent dentry must be valid and able to take - * a reference at this point. - */ - BUG_ON(!IS_ROOT(dentry) && dentry->d_parent != parent); - BUG_ON(!parent->d_count); - parent->d_count++; - spin_unlock(&dentry->d_lock); } - spin_unlock(&parent->d_lock); if (want_root) { path_get(&nd->root); spin_unlock(&fs->lock); @@ -551,10 +594,8 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry) nd->flags &= ~LOOKUP_RCU; return 0; -err_child: - spin_unlock(&dentry->d_lock); err_parent: - spin_unlock(&parent->d_lock); + dput(dentry); err_root: if (want_root) spin_unlock(&fs->lock); @@ -585,14 +626,11 @@ static int complete_walk(struct nameidata *nd) nd->flags &= ~LOOKUP_RCU; if (!(nd->flags & LOOKUP_ROOT)) nd->root.mnt = NULL; - spin_lock(&dentry->d_lock); - if (unlikely(!__d_rcu_to_refcount(dentry, nd->seq))) { - spin_unlock(&dentry->d_lock); + + if (d_rcu_to_refcount(dentry, &dentry->d_seq, nd->seq) < 0) { unlock_rcu_walk(); return -ECHILD; } - BUG_ON(nd->inode != dentry->d_inode); - spin_unlock(&dentry->d_lock); mntget(nd->path.mnt); unlock_rcu_walk(); } @@ -3327,7 +3365,7 @@ void dentry_unhash(struct dentry *dentry) { shrink_dcache_parent(dentry); spin_lock(&dentry->d_lock); - if (dentry->d_count == 1) + if (dentry->d_lockref.count == 1) __d_drop(dentry); spin_unlock(&dentry->d_lock); } @@ -3671,11 +3709,15 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname, if ((flags & ~(AT_SYMLINK_FOLLOW | AT_EMPTY_PATH)) != 0) return -EINVAL; /* - * Using empty names is equivalent to using AT_SYMLINK_FOLLOW - * on /proc/self/fd/<fd>. + * To use null names we require CAP_DAC_READ_SEARCH + * This ensures that not everyone will be able to create + * handlink using the passed filedescriptor. */ - if (flags & AT_EMPTY_PATH) + if (flags & AT_EMPTY_PATH) { + if (!capable(CAP_DAC_READ_SEARCH)) + return -ENOENT; how = LOOKUP_EMPTY; + } if (flags & AT_SYMLINK_FOLLOW) how |= LOOKUP_FOLLOW; diff --git a/fs/namespace.c b/fs/namespace.c index 7b1ca9ba0b0a..a45ba4f267fe 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1429,7 +1429,7 @@ struct vfsmount *collect_mounts(struct path *path) CL_COPY_ALL | CL_PRIVATE); namespace_unlock(); if (IS_ERR(tree)) - return NULL; + return ERR_CAST(tree); return &tree->mnt; } diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c index dc9a913784ab..2d8be51f90dc 100644 --- a/fs/nilfs2/segbuf.c +++ b/fs/nilfs2/segbuf.c @@ -345,8 +345,7 @@ static void nilfs_end_bio_write(struct bio *bio, int err) if (err == -EOPNOTSUPP) { set_bit(BIO_EOPNOTSUPP, &bio->bi_flags); - bio_put(bio); - /* to be detected by submit_seg_bio() */ + /* to be detected by nilfs_segbuf_submit_bio() */ } if (!uptodate) @@ -377,12 +376,12 @@ static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf, bio->bi_private = segbuf; bio_get(bio); submit_bio(mode, bio); + segbuf->sb_nbio++; if (bio_flagged(bio, BIO_EOPNOTSUPP)) { bio_put(bio); err = -EOPNOTSUPP; goto failed; } - segbuf->sb_nbio++; bio_put(bio); wi->bio = NULL; diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 854d80955bf8..121da2dc3be8 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1022,7 +1022,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) struct inode *inode = NULL; struct ocfs2_super *osb = NULL; struct buffer_head *bh = NULL; - char nodestr[8]; + char nodestr[12]; struct ocfs2_blockcheck_stats stats; trace_ocfs2_fill_super(sb, data, silent); diff --git a/fs/proc/fd.c b/fs/proc/fd.c index 75f2890abbd8..0ff80f9b930f 100644 --- a/fs/proc/fd.c +++ b/fs/proc/fd.c @@ -230,8 +230,6 @@ static int proc_readfd_common(struct file *file, struct dir_context *ctx, if (!dir_emit_dots(file, ctx)) goto out; - if (!dir_emit_dots(file, ctx)) - goto out; files = get_files_struct(p); if (!files) goto out; diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 94441a407337..737e15615b04 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -271,7 +271,7 @@ int proc_readdir_de(struct proc_dir_entry *de, struct file *file, de = next; } while (de); spin_unlock(&proc_subdir_lock); - return 0; + return 1; } int proc_readdir(struct file *file, struct dir_context *ctx) diff --git a/fs/proc/root.c b/fs/proc/root.c index 229e366598da..e0a790da726d 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -205,7 +205,9 @@ static struct dentry *proc_root_lookup(struct inode * dir, struct dentry * dentr static int proc_root_readdir(struct file *file, struct dir_context *ctx) { if (ctx->pos < FIRST_PROCESS_ENTRY) { - proc_readdir(file, ctx); + int error = proc_readdir(file, ctx); + if (unlikely(error <= 0)) + return error; ctx->pos = FIRST_PROCESS_ENTRY; } diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index 0807ddf97b05..f330d28e4d0e 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -208,10 +208,6 @@ static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b) #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ #endif -#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG -#define page_test_and_clear_young(pfn) (0) -#endif - #ifndef __HAVE_ARCH_PGD_OFFSET_GATE #define pgd_offset_gate(mm, addr) pgd_offset(mm, addr) #endif diff --git a/include/linux/dcache.h b/include/linux/dcache.h index b90337c9d468..9169b91ea2d2 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -9,6 +9,7 @@ #include <linux/seqlock.h> #include <linux/cache.h> #include <linux/rcupdate.h> +#include <linux/lockref.h> struct nameidata; struct path; @@ -100,6 +101,8 @@ extern unsigned int full_name_hash(const unsigned char *, unsigned int); # endif #endif +#define d_lock d_lockref.lock + struct dentry { /* RCU lookup touched fields */ unsigned int d_flags; /* protected by d_lock */ @@ -112,8 +115,7 @@ struct dentry { unsigned char d_iname[DNAME_INLINE_LEN]; /* small names */ /* Ref lookup also touches following */ - unsigned int d_count; /* protected by d_lock */ - spinlock_t d_lock; /* per dentry lock */ + struct lockref d_lockref; /* per-dentry lock and refcount */ const struct dentry_operations *d_op; struct super_block *d_sb; /* The root of the dentry tree */ unsigned long d_time; /* used by d_revalidate */ @@ -302,31 +304,9 @@ extern struct dentry *__d_lookup(const struct dentry *, const struct qstr *); extern struct dentry *__d_lookup_rcu(const struct dentry *parent, const struct qstr *name, unsigned *seq); -/** - * __d_rcu_to_refcount - take a refcount on dentry if sequence check is ok - * @dentry: dentry to take a ref on - * @seq: seqcount to verify against - * Returns: 0 on failure, else 1. - * - * __d_rcu_to_refcount operates on a dentry,seq pair that was returned - * by __d_lookup_rcu, to get a reference on an rcu-walk dentry. - */ -static inline int __d_rcu_to_refcount(struct dentry *dentry, unsigned seq) -{ - int ret = 0; - - assert_spin_locked(&dentry->d_lock); - if (!read_seqcount_retry(&dentry->d_seq, seq)) { - ret = 1; - dentry->d_count++; - } - - return ret; -} - static inline unsigned d_count(const struct dentry *dentry) { - return dentry->d_count; + return dentry->d_lockref.count; } /* validate "insecure" dentry pointer */ @@ -336,6 +316,7 @@ extern int d_validate(struct dentry *, struct dentry *); * helper function for dentry_operations.d_dname() members */ extern char *dynamic_dname(struct dentry *, char *, int, const char *, ...); +extern char *simple_dname(struct dentry *, char *, int); extern char *__d_path(const struct path *, const struct path *, char *, int); extern char *d_absolute_path(const struct path *, char *, int); @@ -356,17 +337,14 @@ extern char *dentry_path(struct dentry *, char *, int); static inline struct dentry *dget_dlock(struct dentry *dentry) { if (dentry) - dentry->d_count++; + dentry->d_lockref.count++; return dentry; } static inline struct dentry *dget(struct dentry *dentry) { - if (dentry) { - spin_lock(&dentry->d_lock); - dget_dlock(dentry); - spin_unlock(&dentry->d_lock); - } + if (dentry) + lockref_get(&dentry->d_lockref); return dentry; } diff --git a/include/linux/device.h b/include/linux/device.h index 22b546a58591..7d960d581e9c 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -1099,7 +1099,8 @@ do { \ dev_level_ratelimited(dev_notice, dev, fmt, ##__VA_ARGS__) #define dev_info_ratelimited(dev, fmt, ...) \ dev_level_ratelimited(dev_info, dev, fmt, ##__VA_ARGS__) -#if defined(CONFIG_DYNAMIC_DEBUG) || defined(DEBUG) +#if defined(CONFIG_DYNAMIC_DEBUG) +/* descriptor check is first to prevent flooding with "callbacks suppressed" */ #define dev_dbg_ratelimited(dev, fmt, ...) \ do { \ static DEFINE_RATELIMIT_STATE(_rs, \ @@ -1108,8 +1109,17 @@ do { \ DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \ if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) && \ __ratelimit(&_rs)) \ - __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \ - ##__VA_ARGS__); \ + __dynamic_dev_dbg(&descriptor, dev, fmt, \ + ##__VA_ARGS__); \ +} while (0) +#elif defined(DEBUG) +#define dev_dbg_ratelimited(dev, fmt, ...) \ +do { \ + static DEFINE_RATELIMIT_STATE(_rs, \ + DEFAULT_RATELIMIT_INTERVAL, \ + DEFAULT_RATELIMIT_BURST); \ + if (__ratelimit(&_rs)) \ + dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); \ } while (0) #else #define dev_dbg_ratelimited(dev, fmt, ...) \ diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h index b99cd23f3474..79640e015a86 100644 --- a/include/linux/inetdevice.h +++ b/include/linux/inetdevice.h @@ -5,45 +5,13 @@ #include <linux/bitmap.h> #include <linux/if.h> +#include <linux/ip.h> #include <linux/netdevice.h> #include <linux/rcupdate.h> #include <linux/timer.h> #include <linux/sysctl.h> #include <linux/rtnetlink.h> -enum -{ - IPV4_DEVCONF_FORWARDING=1, - IPV4_DEVCONF_MC_FORWARDING, - IPV4_DEVCONF_PROXY_ARP, - IPV4_DEVCONF_ACCEPT_REDIRECTS, - IPV4_DEVCONF_SECURE_REDIRECTS, - IPV4_DEVCONF_SEND_REDIRECTS, - IPV4_DEVCONF_SHARED_MEDIA, - IPV4_DEVCONF_RP_FILTER, - IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE, - IPV4_DEVCONF_BOOTP_RELAY, - IPV4_DEVCONF_LOG_MARTIANS, - IPV4_DEVCONF_TAG, - IPV4_DEVCONF_ARPFILTER, - IPV4_DEVCONF_MEDIUM_ID, - IPV4_DEVCONF_NOXFRM, - IPV4_DEVCONF_NOPOLICY, - IPV4_DEVCONF_FORCE_IGMP_VERSION, - IPV4_DEVCONF_ARP_ANNOUNCE, - IPV4_DEVCONF_ARP_IGNORE, - IPV4_DEVCONF_PROMOTE_SECONDARIES, - IPV4_DEVCONF_ARP_ACCEPT, - IPV4_DEVCONF_ARP_NOTIFY, - IPV4_DEVCONF_ACCEPT_LOCAL, - IPV4_DEVCONF_SRC_VMARK, - IPV4_DEVCONF_PROXY_ARP_PVLAN, - IPV4_DEVCONF_ROUTE_LOCALNET, - __IPV4_DEVCONF_MAX -}; - -#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1) - struct ipv4_devconf { void *sysctl; int data[IPV4_DEVCONF_MAX]; diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 850e95bc766c..b8b7dc755752 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -101,6 +101,7 @@ struct inet6_skb_parm { #define IP6SKB_FORWARDED 2 #define IP6SKB_REROUTED 4 #define IP6SKB_ROUTERALERT 8 +#define IP6SKB_FRAGMENTED 16 }; #define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb)) diff --git a/include/linux/lockref.h b/include/linux/lockref.h new file mode 100644 index 000000000000..ca07b5028b01 --- /dev/null +++ b/include/linux/lockref.h @@ -0,0 +1,36 @@ +#ifndef __LINUX_LOCKREF_H +#define __LINUX_LOCKREF_H + +/* + * Locked reference counts. + * + * These are different from just plain atomic refcounts in that they + * are atomic with respect to the spinlock that goes with them. In + * particular, there can be implementations that don't actually get + * the spinlock for the common decrement/increment operations, but they + * still have to check that the operation is done semantically as if + * the spinlock had been taken (using a cmpxchg operation that covers + * both the lock and the count word, or using memory transactions, for + * example). + */ + +#include <linux/spinlock.h> + +struct lockref { + union { +#ifdef CONFIG_CMPXCHG_LOCKREF + aligned_u64 lock_count; +#endif + struct { + spinlock_t lock; + unsigned int count; + }; + }; +}; + +extern void lockref_get(struct lockref *); +extern int lockref_get_not_zero(struct lockref *); +extern int lockref_get_or_lock(struct lockref *); +extern int lockref_put_or_lock(struct lockref *); + +#endif /* __LINUX_LOCKREF_H */ diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index cfc678ceb570..e6090d88e91d 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -160,7 +160,8 @@ enum palmas_regulators { PALMAS_REG_SMPS7, PALMAS_REG_SMPS8, PALMAS_REG_SMPS9, - PALMAS_REG_SMPS10, + PALMAS_REG_SMPS10_OUT2, + PALMAS_REG_SMPS10_OUT1, /* LDO regulators */ PALMAS_REG_LDO1, PALMAS_REG_LDO2, @@ -355,9 +356,9 @@ struct palmas_pmic { int smps123; int smps457; - int range[PALMAS_REG_SMPS10]; - unsigned int ramp_delay[PALMAS_REG_SMPS10]; - unsigned int current_reg_mode[PALMAS_REG_SMPS10]; + int range[PALMAS_REG_SMPS10_OUT1]; + unsigned int ramp_delay[PALMAS_REG_SMPS10_OUT1]; + unsigned int current_reg_mode[PALMAS_REG_SMPS10_OUT1]; }; struct palmas_resource { diff --git a/include/linux/mfd/samsung/s2mps11.h b/include/linux/mfd/samsung/s2mps11.h index 4e94dc65f987..d0d52ea60074 100644 --- a/include/linux/mfd/samsung/s2mps11.h +++ b/include/linux/mfd/samsung/s2mps11.h @@ -191,6 +191,17 @@ enum s2mps11_regulators { #define S2MPS11_BUCK_N_VOLTAGES (S2MPS11_BUCK_VSEL_MASK + 1) #define S2MPS11_RAMP_DELAY 25000 /* uV/us */ + +#define S2MPS11_BUCK2_RAMP_SHIFT 6 +#define S2MPS11_BUCK34_RAMP_SHIFT 4 +#define S2MPS11_BUCK5_RAMP_SHIFT 6 +#define S2MPS11_BUCK16_RAMP_SHIFT 4 +#define S2MPS11_BUCK7810_RAMP_SHIFT 2 +#define S2MPS11_BUCK9_RAMP_SHIFT 0 +#define S2MPS11_BUCK2_RAMP_EN_SHIFT 3 +#define S2MPS11_BUCK3_RAMP_EN_SHIFT 2 +#define S2MPS11_BUCK4_RAMP_EN_SHIFT 1 +#define S2MPS11_BUCK6_RAMP_EN_SHIFT 0 #define S2MPS11_PMIC_EN_SHIFT 6 #define S2MPS11_REGULATOR_MAX (S2MPS11_REG_MAX - 3) diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h index 29eab2bd3dfa..a5a7f0130e96 100644 --- a/include/linux/mfd/tps65217.h +++ b/include/linux/mfd/tps65217.h @@ -244,24 +244,6 @@ struct tps65217_board { }; /** - * struct tps_info - packages regulator constraints - * @name: Voltage regulator name - * @min_uV: minimum micro volts - * @max_uV: minimum micro volts - * @vsel_to_uv: Function pointer to get voltage from selector - * @uv_to_vsel: Function pointer to get selector from voltage - * - * This data is used to check the regualtor voltage limits while setting. - */ -struct tps_info { - const char *name; - int min_uV; - int max_uV; - int (*vsel_to_uv)(unsigned int vsel); - int (*uv_to_vsel)(int uV, unsigned int *vsel); -}; - -/** * struct tps65217 - tps65217 sub-driver chip access routines * * Device data may be used to access the TPS65217 chip @@ -273,7 +255,6 @@ struct tps65217 { unsigned int id; struct regulator_desc desc[TPS65217_NUM_REGULATOR]; struct regulator_dev *rdev[TPS65217_NUM_REGULATOR]; - struct tps_info *info[TPS65217_NUM_REGULATOR]; struct regmap *regmap; }; diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index fb425aa16c01..faf4b7c1ad12 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -332,6 +332,7 @@ struct mm_struct { unsigned long pgoff, unsigned long flags); #endif unsigned long mmap_base; /* base of mmap area */ + unsigned long mmap_legacy_base; /* base of mmap area in bottom-up allocations */ unsigned long task_size; /* size of task vm space */ unsigned long highest_vm_end; /* highest vma end address */ pgd_t * pgd; diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h index 10e5947491c7..b4ec59d159ac 100644 --- a/include/linux/nsproxy.h +++ b/include/linux/nsproxy.h @@ -14,6 +14,10 @@ struct fs_struct; * A structure to contain pointers to all per-process * namespaces - fs (mount), uts, network, sysvipc, etc. * + * The pid namespace is an exception -- it's accessed using + * task_active_pid_ns. The pid namespace here is the + * namespace that children will use. + * * 'count' is the number of tasks holding a reference. * The count for each namespace, then, will be the number * of nsproxies pointing to it, not the number of tasks. @@ -27,7 +31,7 @@ struct nsproxy { struct uts_namespace *uts_ns; struct ipc_namespace *ipc_ns; struct mnt_namespace *mnt_ns; - struct pid_namespace *pid_ns; + struct pid_namespace *pid_ns_for_children; struct net *net_ns; }; extern struct nsproxy init_nsproxy; diff --git a/include/linux/platform_data/efm32-spi.h b/include/linux/platform_data/efm32-spi.h new file mode 100644 index 000000000000..31b19ca1d73a --- /dev/null +++ b/include/linux/platform_data/efm32-spi.h @@ -0,0 +1,14 @@ +#ifndef __LINUX_PLATFORM_DATA_EFM32_SPI_H__ +#define __LINUX_PLATFORM_DATA_EFM32_SPI_H__ + +#include <linux/types.h> + +/** + * struct efm32_spi_pdata + * @location: pinmux location for the I/O pins (to be written to the ROUTE + * register) + */ +struct efm32_spi_pdata { + u8 location; +}; +#endif /* ifndef __LINUX_PLATFORM_DATA_EFM32_SPI_H__ */ diff --git a/include/linux/platform_data/tegra_usb.h b/include/linux/platform_data/tegra_usb.h deleted file mode 100644 index 66c673fef408..000000000000 --- a/include/linux/platform_data/tegra_usb.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Copyright (C) 2010 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef _TEGRA_USB_H_ -#define _TEGRA_USB_H_ - -enum tegra_usb_operating_modes { - TEGRA_USB_DEVICE, - TEGRA_USB_HOST, - TEGRA_USB_OTG, -}; - -struct tegra_ehci_platform_data { - enum tegra_usb_operating_modes operating_mode; - /* power down the phy on bus suspend */ - int power_down_on_bus_suspend; - void *phy_config; - int vbus_gpio; -}; - -#endif /* _TEGRA_USB_H_ */ diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 580a5320cc96..a10380bfbeac 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -16,6 +16,7 @@ #include <linux/list.h> #include <linux/rbtree.h> #include <linux/err.h> +#include <linux/bug.h> struct module; struct device; @@ -471,6 +472,9 @@ struct regmap_irq { * @ack_base: Base ack address. If zero then the chip is clear on read. * @wake_base: Base address for wake enables. If zero unsupported. * @irq_reg_stride: Stride to use for chips where registers are not contiguous. + * @init_ack_masked: Ack all masked interrupts once during initalization. + * @mask_invert: Inverted mask register: cleared bits are masked out. + * @wake_invert: Inverted wake register: cleared bits are wake enabled. * @runtime_pm: Hold a runtime PM lock on the device when accessing it. * * @num_regs: Number of registers in each control bank. @@ -486,9 +490,10 @@ struct regmap_irq_chip { unsigned int ack_base; unsigned int wake_base; unsigned int irq_reg_stride; - unsigned int mask_invert; - unsigned int wake_invert; - bool runtime_pm; + bool init_ack_masked:1; + bool mask_invert:1; + bool wake_invert:1; + bool runtime_pm:1; int num_regs; diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 3a76389c6aaa..27be915caa96 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -137,6 +137,12 @@ struct regulator *__must_check devm_regulator_get(struct device *dev, const char *id); struct regulator *__must_check regulator_get_exclusive(struct device *dev, const char *id); +struct regulator *__must_check devm_regulator_get_exclusive(struct device *dev, + const char *id); +struct regulator *__must_check regulator_get_optional(struct device *dev, + const char *id); +struct regulator *__must_check devm_regulator_get_optional(struct device *dev, + const char *id); void regulator_put(struct regulator *regulator); void devm_regulator_put(struct regulator *regulator); @@ -217,6 +223,25 @@ devm_regulator_get(struct device *dev, const char *id) return NULL; } +static inline struct regulator *__must_check +regulator_get_exclusive(struct device *dev, const char *id) +{ + return NULL; +} + +static inline struct regulator *__must_check +regulator_get_optional(struct device *dev, const char *id) +{ + return NULL; +} + + +static inline struct regulator *__must_check +devm_regulator_get_optional(struct device *dev, const char *id) +{ + return NULL; +} + static inline void regulator_put(struct regulator *regulator) { } @@ -369,8 +394,11 @@ static inline int regulator_count_voltages(struct regulator *regulator) static inline int regulator_set_voltage_tol(struct regulator *regulator, int new_uV, int tol_uV) { - return regulator_set_voltage(regulator, - new_uV - tol_uV, new_uV + tol_uV); + if (regulator_set_voltage(regulator, new_uV, new_uV + tol_uV) == 0) + return 0; + else + return regulator_set_voltage(regulator, + new_uV - tol_uV, new_uV + tol_uV); } static inline int regulator_is_supported_voltage_tol(struct regulator *regulator, diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 6700cc94bdd1..67e13aa5a478 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -40,6 +40,24 @@ enum regulator_status { }; /** + * Specify a range of voltages for regulator_map_linar_range() and + * regulator_list_linear_range(). + * + * @min_uV: Lowest voltage in range + * @max_uV: Highest voltage in range + * @min_sel: Lowest selector for range + * @max_sel: Highest selector for range + * @uV_step: Step size + */ +struct regulator_linear_range { + unsigned int min_uV; + unsigned int max_uV; + unsigned int min_sel; + unsigned int max_sel; + unsigned int uV_step; +}; + +/** * struct regulator_ops - regulator operations. * * @enable: Configure the regulator as enabled. @@ -223,6 +241,9 @@ struct regulator_desc { unsigned int linear_min_sel; unsigned int ramp_delay; + const struct regulator_linear_range *linear_ranges; + int n_linear_ranges; + const unsigned int *volt_table; unsigned int vsel_reg; @@ -326,10 +347,14 @@ int regulator_mode_to_status(unsigned int); int regulator_list_voltage_linear(struct regulator_dev *rdev, unsigned int selector); +int regulator_list_voltage_linear_range(struct regulator_dev *rdev, + unsigned int selector); int regulator_list_voltage_table(struct regulator_dev *rdev, unsigned int selector); int regulator_map_voltage_linear(struct regulator_dev *rdev, int min_uV, int max_uV); +int regulator_map_voltage_linear_range(struct regulator_dev *rdev, + int min_uV, int max_uV); int regulator_map_voltage_iterate(struct regulator_dev *rdev, int min_uV, int max_uV); int regulator_map_voltage_ascend(struct regulator_dev *rdev, diff --git a/include/linux/regulator/fan53555.h b/include/linux/regulator/fan53555.h index 5c45c85d52ca..f13880e84d85 100644 --- a/include/linux/regulator/fan53555.h +++ b/include/linux/regulator/fan53555.h @@ -11,6 +11,7 @@ */ #ifndef __FAN53555_H__ +#define __FAN53555_H__ /* VSEL ID */ enum { diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index 36adbc82de6a..999b20ce06cf 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -134,6 +134,7 @@ struct regulation_constraints { unsigned always_on:1; /* regulator never off when system is on */ unsigned boot_on:1; /* bootloader/firmware enabled regulator */ unsigned apply_uV:1; /* apply uV constraint if min == max */ + unsigned ramp_disable:1; /* disable ramp delay */ }; /** diff --git a/include/linux/regulator/max8660.h b/include/linux/regulator/max8660.h index 9936763621c7..f8a6a4844864 100644 --- a/include/linux/regulator/max8660.h +++ b/include/linux/regulator/max8660.h @@ -39,7 +39,7 @@ enum { */ struct max8660_subdev_data { int id; - char *name; + const char *name; struct regulator_init_data *platform_data; }; diff --git a/include/linux/regulator/pfuze100.h b/include/linux/regulator/pfuze100.h new file mode 100644 index 000000000000..65d550bf3954 --- /dev/null +++ b/include/linux/regulator/pfuze100.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ +#ifndef __LINUX_REG_PFUZE100_H +#define __LINUX_REG_PFUZE100_H + +#define PFUZE100_SW1AB 0 +#define PFUZE100_SW1C 1 +#define PFUZE100_SW2 2 +#define PFUZE100_SW3A 3 +#define PFUZE100_SW3B 4 +#define PFUZE100_SW4 5 +#define PFUZE100_SWBST 6 +#define PFUZE100_VSNVS 7 +#define PFUZE100_VREFDDR 8 +#define PFUZE100_VGEN1 9 +#define PFUZE100_VGEN2 10 +#define PFUZE100_VGEN3 11 +#define PFUZE100_VGEN4 12 +#define PFUZE100_VGEN5 13 +#define PFUZE100_VGEN6 14 +#define PFUZE100_MAX_REGULATOR 15 + +struct regulator_init_data; + +struct pfuze_regulator_platform_data { + struct regulator_init_data *init_data[PFUZE100_MAX_REGULATOR]; +}; + +#endif /* __LINUX_REG_PFUZE100_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index e9995eb5985c..078066daffd4 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -314,7 +314,6 @@ struct nsproxy; struct user_namespace; #ifdef CONFIG_MMU -extern unsigned long mmap_legacy_base(void); extern void arch_pick_mmap_layout(struct mm_struct *mm); extern unsigned long arch_get_unmapped_area(struct file *, unsigned long, unsigned long, diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 28e440be1c07..887116dbce2c 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -74,7 +74,7 @@ struct spi_device { struct spi_master *master; u32 max_speed_hz; u8 chip_select; - u8 mode; + u16 mode; #define SPI_CPHA 0x01 /* clock phase */ #define SPI_CPOL 0x02 /* clock polarity */ #define SPI_MODE_0 (0|0) /* (original MicroWire) */ @@ -87,6 +87,10 @@ struct spi_device { #define SPI_LOOP 0x20 /* loopback mode */ #define SPI_NO_CS 0x40 /* 1 dev/bus, no chipselect */ #define SPI_READY 0x80 /* slave pulls low to pause */ +#define SPI_TX_DUAL 0x100 /* transmit with 2 wires */ +#define SPI_TX_QUAD 0x200 /* transmit with 4 wires */ +#define SPI_RX_DUAL 0x400 /* receive with 2 wires */ +#define SPI_RX_QUAD 0x800 /* receive with 4 wires */ u8 bits_per_word; int irq; void *controller_state; @@ -233,6 +237,8 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * suported. If set, the SPI core will reject any transfer with an * unsupported bits_per_word. If not set, this value is simply ignored, * and it's up to the individual driver to perform any validation. + * @min_speed_hz: Lowest supported transfer speed + * @max_speed_hz: Highest supported transfer speed * @flags: other constraints relevant to this driver * @bus_lock_spinlock: spinlock for SPI bus locking * @bus_lock_mutex: mutex for SPI bus locking @@ -254,6 +260,9 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * @busy: message pump is busy * @running: message pump is running * @rt: whether this queue is set to run as a realtime task + * @auto_runtime_pm: the core should ensure a runtime PM reference is held + * while the hardware is prepared, using the parent + * device for the spidev * @prepare_transfer_hardware: a message will soon arrive from the queue * so the subsystem requests the driver to prepare the transfer hardware * by issuing this call @@ -309,9 +318,13 @@ struct spi_master { /* bitmask of supported bits_per_word for transfers */ u32 bits_per_word_mask; #define SPI_BPW_MASK(bits) BIT((bits) - 1) -#define SPI_BIT_MASK(bits) (((bits) == 32) ? ~0UL : (BIT(bits) - 1)) +#define SPI_BIT_MASK(bits) (((bits) == 32) ? ~0U : (BIT(bits) - 1)) #define SPI_BPW_RANGE_MASK(min, max) (SPI_BIT_MASK(max) - SPI_BIT_MASK(min - 1)) + /* limits on transfer speed */ + u32 min_speed_hz; + u32 max_speed_hz; + /* other constraints relevant to this driver */ u16 flags; #define SPI_MASTER_HALF_DUPLEX BIT(0) /* can't do full duplex */ @@ -374,11 +387,13 @@ struct spi_master { bool busy; bool running; bool rt; + bool auto_runtime_pm; int (*prepare_transfer_hardware)(struct spi_master *master); int (*transfer_one_message)(struct spi_master *master, struct spi_message *mesg); int (*unprepare_transfer_hardware)(struct spi_master *master); + /* gpio chip select */ int *cs_gpios; }; @@ -448,6 +463,10 @@ extern struct spi_master *spi_busnum_to_master(u16 busnum); * @rx_buf: data to be read (dma-safe memory), or NULL * @tx_dma: DMA address of tx_buf, if @spi_message.is_dma_mapped * @rx_dma: DMA address of rx_buf, if @spi_message.is_dma_mapped + * @tx_nbits: number of bits used for writting. If 0 the default + * (SPI_NBITS_SINGLE) is used. + * @rx_nbits: number of bits used for reading. If 0 the default + * (SPI_NBITS_SINGLE) is used. * @len: size of rx and tx buffers (in bytes) * @speed_hz: Select a speed other than the device default for this * transfer. If 0 the default (from @spi_device) is used. @@ -502,6 +521,11 @@ extern struct spi_master *spi_busnum_to_master(u16 busnum); * by the results of previous messages and where the whole transaction * ends when the chipselect goes intactive. * + * When SPI can transfer in 1x,2x or 4x. It can get this tranfer information + * from device through @tx_nbits and @rx_nbits. In Bi-direction, these + * two should both be set. User can set transfer mode with SPI_NBITS_SINGLE(1x) + * SPI_NBITS_DUAL(2x) and SPI_NBITS_QUAD(4x) to support these three transfer. + * * The code that submits an spi_message (and its spi_transfers) * to the lower layers is responsible for managing its memory. * Zero-initialize every field you don't set up explicitly, to @@ -522,6 +546,11 @@ struct spi_transfer { dma_addr_t rx_dma; unsigned cs_change:1; + u8 tx_nbits; + u8 rx_nbits; +#define SPI_NBITS_SINGLE 0x01 /* 1bit transfer */ +#define SPI_NBITS_DUAL 0x02 /* 2bits transfer */ +#define SPI_NBITS_QUAD 0x04 /* 4bits transfer */ u8 bits_per_word; u16 delay_usecs; u32 speed_hz; @@ -578,6 +607,7 @@ struct spi_message { /* completion is reported through a callback */ void (*complete)(void *context); void *context; + unsigned frame_length; unsigned actual_length; int status; @@ -869,7 +899,7 @@ struct spi_board_info { /* mode becomes spi_device.mode, and is essential for chips * where the default of SPI_CS_HIGH = 0 is wrong. */ - u8 mode; + u16 mode; /* ... may need additional spi_device chip config data here. * avoid stuff protocol drivers can set; but include stuff diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h index f987a2bee16a..daebaba886aa 100644 --- a/include/linux/spi/spi_bitbang.h +++ b/include/linux/spi/spi_bitbang.h @@ -4,11 +4,7 @@ #include <linux/workqueue.h> struct spi_bitbang { - struct workqueue_struct *workqueue; - struct work_struct work; - spinlock_t lock; - struct list_head queue; u8 busy; u8 use_dma; u8 flags; /* extra spi->mode support */ @@ -41,7 +37,6 @@ struct spi_bitbang { */ extern int spi_bitbang_setup(struct spi_device *spi); extern void spi_bitbang_cleanup(struct spi_device *spi); -extern int spi_bitbang_transfer(struct spi_device *spi, struct spi_message *m); extern int spi_bitbang_setup_transfer(struct spi_device *spi, struct spi_transfer *t); diff --git a/include/linux/usb.h b/include/linux/usb.h index 0eec2689b955..001629cd1a97 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -337,6 +337,7 @@ struct usb_bus { * the ep queue on a short transfer * with the URB_SHORT_NOT_OK flag set. */ + unsigned no_sg_constraint:1; /* no sg constraint */ unsigned sg_tablesize; /* 0 or largest number of sg list entries */ int devnum_next; /* Next open device number in @@ -684,6 +685,11 @@ static inline bool usb_device_supports_ltm(struct usb_device *udev) return udev->bos->ss_cap->bmAttributes & USB_LTM_SUPPORT; } +static inline bool usb_device_no_sg_constraint(struct usb_device *udev) +{ + return udev && udev->bus && udev->bus->no_sg_constraint; +} + /*-------------------------------------------------------------------------*/ @@ -708,7 +714,10 @@ extern int usb_driver_claim_interface(struct usb_driver *driver, * usb_interface_claimed - returns true iff an interface is claimed * @iface: the interface being checked * - * Returns true (nonzero) iff the interface is claimed, else false (zero). + * Return: %true (nonzero) iff the interface is claimed, else %false + * (zero). + * + * Note: * Callers must own the driver model's usb bus readlock. So driver * probe() entries don't need extra locking, but other call contexts * may need to explicitly claim that lock. @@ -745,8 +754,9 @@ extern struct usb_host_interface *usb_find_alt_setting( * @buf: where to put the string * @size: how big is "buf"? * - * Returns length of the string (> 0) or negative if size was too small. + * Return: Length of the string (> 0) or negative if size was too small. * + * Note: * This identifier is intended to be "stable", reflecting physical paths in * hardware such as physical bus addresses for host controllers or ports on * USB hubs. That makes it stay the same until systems are physically @@ -1247,7 +1257,9 @@ typedef void (*usb_complete_t)(struct urb *); * the device driver is saying that it provided this DMA address, * which the host controller driver should use in preference to the * transfer_buffer. - * @sg: scatter gather buffer list + * @sg: scatter gather buffer list, the buffer size of each element in + * the list (except the last) must be divisible by the endpoint's + * max packet size if no_sg_constraint isn't set in 'struct usb_bus' * @num_mapped_sgs: (internal) number of mapped sg entries * @num_sgs: number of entries in the sg list * @transfer_buffer_length: How big is transfer_buffer. The transfer may @@ -1534,10 +1546,16 @@ static inline void usb_fill_int_urb(struct urb *urb, urb->transfer_buffer_length = buffer_length; urb->complete = complete_fn; urb->context = context; - if (dev->speed == USB_SPEED_HIGH || dev->speed == USB_SPEED_SUPER) + + if (dev->speed == USB_SPEED_HIGH || dev->speed == USB_SPEED_SUPER) { + /* make sure interval is within allowed range */ + interval = clamp(interval, 1, 16); + urb->interval = 1 << (interval - 1); - else + } else { urb->interval = interval; + } + urb->start_frame = -1; } @@ -1570,7 +1588,7 @@ extern int usb_anchor_empty(struct usb_anchor *anchor); * usb_urb_dir_in - check if an URB describes an IN transfer * @urb: URB to be checked * - * Returns 1 if @urb describes an IN transfer (device-to-host), + * Return: 1 if @urb describes an IN transfer (device-to-host), * otherwise 0. */ static inline int usb_urb_dir_in(struct urb *urb) @@ -1582,7 +1600,7 @@ static inline int usb_urb_dir_in(struct urb *urb) * usb_urb_dir_out - check if an URB describes an OUT transfer * @urb: URB to be checked * - * Returns 1 if @urb describes an OUT transfer (host-to-device), + * Return: 1 if @urb describes an OUT transfer (host-to-device), * otherwise 0. */ static inline int usb_urb_dir_out(struct urb *urb) diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index 25629948c842..7d399671a566 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -18,12 +18,17 @@ struct ci_hdrc_platform_data { unsigned long flags; #define CI_HDRC_REGS_SHARED BIT(0) #define CI_HDRC_REQUIRE_TRANSCEIVER BIT(1) -#define CI_HDRC_PULLUP_ON_VBUS BIT(2) #define CI_HDRC_DISABLE_STREAMING BIT(3) + /* + * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1, + * but otg is not supported (no register otgsc). + */ +#define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4) enum usb_dr_mode dr_mode; #define CI_HDRC_CONTROLLER_RESET_EVENT 0 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 void (*notify_event) (struct ci_hdrc *ci, unsigned event); + struct regulator *reg_vbus; }; /* Default offset of capability registers */ diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index f1b0dca60f12..942ef5e053bf 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -22,6 +22,7 @@ #include <linux/slab.h> #include <linux/scatterlist.h> #include <linux/types.h> +#include <linux/workqueue.h> #include <linux/usb/ch9.h> struct usb_ep; @@ -475,6 +476,7 @@ struct usb_gadget_ops { /** * struct usb_gadget - represents a usb slave device + * @work: (internal use) Workqueue to be used for sysfs_notify() * @ops: Function pointers used to access hardware-specific operations. * @ep0: Endpoint zero, used when reading or writing responses to * driver setup() requests @@ -520,6 +522,7 @@ struct usb_gadget_ops { * device is acting as a B-Peripheral (so is_a_peripheral is false). */ struct usb_gadget { + struct work_struct work; /* readonly to gadget driver */ const struct usb_gadget_ops *ops; struct usb_ep *ep0; @@ -538,6 +541,7 @@ struct usb_gadget { unsigned out_epnum; unsigned in_epnum; }; +#define work_to_gadget(w) (container_of((w), struct usb_gadget, work)) static inline void set_gadget_data(struct usb_gadget *gadget, void *data) { dev_set_drvdata(&gadget->dev, data); } diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 1e88377e22f4..75efc45eaa2f 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -22,6 +22,7 @@ #ifdef __KERNEL__ #include <linux/rwsem.h> +#include <linux/interrupt.h> #define MAX_TOPO_LEVEL 6 @@ -67,6 +68,13 @@ /*-------------------------------------------------------------------------*/ +struct giveback_urb_bh { + bool running; + spinlock_t lock; + struct list_head head; + struct tasklet_struct bh; +}; + struct usb_hcd { /* @@ -139,6 +147,9 @@ struct usb_hcd { resource_size_t rsrc_len; /* memory/io resource length */ unsigned power_budget; /* in mA, 0 = no limit */ + struct giveback_urb_bh high_prio_bh; + struct giveback_urb_bh low_prio_bh; + /* bandwidth_mutex should be taken before adding or removing * any new bus bandwidth constraints: * 1. Before adding a configuration for a new device. @@ -221,6 +232,7 @@ struct hc_driver { #define HCD_USB25 0x0030 /* Wireless USB 1.0 (USB 2.5)*/ #define HCD_USB3 0x0040 /* USB 3.0 */ #define HCD_MASK 0x0070 +#define HCD_BH 0x0100 /* URB complete in BH context */ /* called to init HCD and root hub */ int (*reset) (struct usb_hcd *hcd); @@ -361,6 +373,11 @@ struct hc_driver { int (*find_raw_port_number)(struct usb_hcd *, int); }; +static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd) +{ + return hcd->driver->flags & HCD_BH; +} + extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb); extern int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb, int status); @@ -411,7 +428,7 @@ extern int usb_hcd_pci_probe(struct pci_dev *dev, extern void usb_hcd_pci_remove(struct pci_dev *dev); extern void usb_hcd_pci_shutdown(struct pci_dev *dev); -#ifdef CONFIG_PM_SLEEP +#ifdef CONFIG_PM extern const struct dev_pm_ops usb_hcd_pci_pm_ops; #endif #endif /* CONFIG_PCI */ diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h index a0ef405368b8..8c38aa26b3bb 100644 --- a/include/linux/usb/of.h +++ b/include/linux/usb/of.h @@ -7,19 +7,27 @@ #ifndef __LINUX_USB_OF_H #define __LINUX_USB_OF_H +#include <linux/usb/ch9.h> #include <linux/usb/otg.h> #include <linux/usb/phy.h> #if IS_ENABLED(CONFIG_OF) enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np); +enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np); #else static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np) { return USB_DR_MODE_UNKNOWN; } + +static inline enum usb_device_speed +of_usb_get_maximum_speed(struct device_node *np) +{ + return USB_SPEED_UNKNOWN; +} #endif -#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_PHY) +#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT) enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np); #else static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np) diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index 44036808bf0f..6c0b1c513db7 100644 --- a/include/linux/usb/phy.h +++ b/include/linux/usb/phy.h @@ -142,7 +142,7 @@ extern void usb_remove_phy(struct usb_phy *); /* helpers for direct access thru low-level io interface */ static inline int usb_phy_io_read(struct usb_phy *x, u32 reg) { - if (x->io_ops && x->io_ops->read) + if (x && x->io_ops && x->io_ops->read) return x->io_ops->read(x, reg); return -EINVAL; @@ -150,7 +150,7 @@ static inline int usb_phy_io_read(struct usb_phy *x, u32 reg) static inline int usb_phy_io_write(struct usb_phy *x, u32 val, u32 reg) { - if (x->io_ops && x->io_ops->write) + if (x && x->io_ops && x->io_ops->write) return x->io_ops->write(x, val, reg); return -EINVAL; @@ -159,7 +159,7 @@ static inline int usb_phy_io_write(struct usb_phy *x, u32 val, u32 reg) static inline int usb_phy_init(struct usb_phy *x) { - if (x->init) + if (x && x->init) return x->init(x); return 0; @@ -168,14 +168,14 @@ usb_phy_init(struct usb_phy *x) static inline void usb_phy_shutdown(struct usb_phy *x) { - if (x->shutdown) + if (x && x->shutdown) x->shutdown(x); } static inline int usb_phy_vbus_on(struct usb_phy *x) { - if (!x->set_vbus) + if (!x || !x->set_vbus) return 0; return x->set_vbus(x, true); @@ -184,7 +184,7 @@ usb_phy_vbus_on(struct usb_phy *x) static inline int usb_phy_vbus_off(struct usb_phy *x) { - if (!x->set_vbus) + if (!x || !x->set_vbus) return 0; return x->set_vbus(x, false); @@ -258,7 +258,7 @@ usb_phy_set_power(struct usb_phy *x, unsigned mA) static inline int usb_phy_set_suspend(struct usb_phy *x, int suspend) { - if (x->set_suspend != NULL) + if (x && x->set_suspend != NULL) return x->set_suspend(x, suspend); else return 0; @@ -267,7 +267,7 @@ usb_phy_set_suspend(struct usb_phy *x, int suspend) static inline int usb_phy_notify_connect(struct usb_phy *x, enum usb_device_speed speed) { - if (x->notify_connect) + if (x && x->notify_connect) return x->notify_connect(x, speed); else return 0; @@ -276,7 +276,7 @@ usb_phy_notify_connect(struct usb_phy *x, enum usb_device_speed speed) static inline int usb_phy_notify_disconnect(struct usb_phy *x, enum usb_device_speed speed) { - if (x->notify_disconnect) + if (x && x->notify_disconnect) return x->notify_disconnect(x, speed); else return 0; diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h index d2ca919a5b73..1de16c324ec8 100644 --- a/include/linux/usb/tegra_usb_phy.h +++ b/include/linux/usb/tegra_usb_phy.h @@ -18,19 +18,36 @@ #include <linux/clk.h> #include <linux/usb/otg.h> +/* + * utmi_pll_config_in_car_module: true if the UTMI PLL configuration registers + * should be set up by clk-tegra, false if by the PHY code + * has_hostpc: true if the USB controller has the HOSTPC extension, which + * changes the location of the PHCD and PTS fields + * requires_usbmode_setup: true if the USBMODE register needs to be set to + * enter host mode + * requires_extra_tuning_parameters: true if xcvr_hsslew, hssquelch_level + * and hsdiscon_level should be set for adequate signal quality + */ + +struct tegra_phy_soc_config { + bool utmi_pll_config_in_car_module; + bool has_hostpc; + bool requires_usbmode_setup; + bool requires_extra_tuning_parameters; +}; + struct tegra_utmip_config { u8 hssync_start_delay; u8 elastic_limit; u8 idle_wait_delay; u8 term_range_adj; + bool xcvr_setup_use_fuses; u8 xcvr_setup; u8 xcvr_lsfslew; u8 xcvr_lsrslew; -}; - -struct tegra_ulpi_config { - int reset_gpio; - const char *clk; + u8 xcvr_hsslew; + u8 hssquelch_level; + u8 hsdiscon_level; }; enum tegra_usb_phy_port_speed { @@ -39,12 +56,6 @@ enum tegra_usb_phy_port_speed { TEGRA_USB_PHY_PORT_SPEED_HIGH, }; -enum tegra_usb_phy_mode { - TEGRA_USB_PHY_MODE_DEVICE, - TEGRA_USB_PHY_MODE_HOST, - TEGRA_USB_PHY_MODE_OTG, -}; - struct tegra_xtal_freq; struct tegra_usb_phy { @@ -55,18 +66,17 @@ struct tegra_usb_phy { struct clk *clk; struct clk *pll_u; struct clk *pad_clk; - enum tegra_usb_phy_mode mode; + struct regulator *vbus; + enum usb_dr_mode mode; void *config; + const struct tegra_phy_soc_config *soc_config; struct usb_phy *ulpi; struct usb_phy u_phy; - struct device *dev; bool is_legacy_phy; bool is_ulpi_phy; int reset_gpio; }; -struct usb_phy *tegra_usb_get_phy(struct device_node *dn); - void tegra_usb_phy_preresume(struct usb_phy *phy); void tegra_usb_phy_postresume(struct usb_phy *phy); diff --git a/include/linux/usb/nop-usb-xceiv.h b/include/linux/usb/usb_phy_gen_xceiv.h index 148d35171aac..f9a7e7bc925b 100644 --- a/include/linux/usb/nop-usb-xceiv.h +++ b/include/linux/usb/usb_phy_gen_xceiv.h @@ -3,7 +3,7 @@ #include <linux/usb/otg.h> -struct nop_usb_xceiv_platform_data { +struct usb_phy_gen_xceiv_platform_data { enum usb_phy_type type; unsigned long clk_rate; @@ -12,7 +12,7 @@ struct nop_usb_xceiv_platform_data { unsigned int needs_reset:1; }; -#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE)) +#if IS_ENABLED(CONFIG_NOP_USB_XCEIV) /* sometimes transceivers are accessed only through e.g. ULPI */ extern void usb_nop_xceiv_register(void); extern void usb_nop_xceiv_unregister(void); diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index f18d64129f99..2b47e6364e36 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -34,6 +34,7 @@ struct usbnet { struct mutex phy_mutex; unsigned char suspend_count; unsigned char pkt_cnt, pkt_err; + unsigned can_dma_sg:1; /* i/o info: pipes etc */ unsigned in, out; diff --git a/include/linux/usb/wusb-wa.h b/include/linux/usb/wusb-wa.h index 6be985b2a434..4ff744e2b678 100644 --- a/include/linux/usb/wusb-wa.h +++ b/include/linux/usb/wusb-wa.h @@ -66,6 +66,7 @@ enum { WA_ENABLE = 0x01, WA_RESET = 0x02, RPIPE_PAUSE = 0x1, + RPIPE_STALL = 0x2, }; /* Responses from Get Status request ([WUSB] section 8.3.1.6) */ diff --git a/include/linux/wait.h b/include/linux/wait.h index f487a4750b7f..a67fc1635592 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -811,6 +811,63 @@ do { \ __ret; \ }) +#define __wait_event_interruptible_lock_irq_timeout(wq, condition, \ + lock, ret) \ +do { \ + DEFINE_WAIT(__wait); \ + \ + for (;;) { \ + prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE); \ + if (condition) \ + break; \ + if (signal_pending(current)) { \ + ret = -ERESTARTSYS; \ + break; \ + } \ + spin_unlock_irq(&lock); \ + ret = schedule_timeout(ret); \ + spin_lock_irq(&lock); \ + if (!ret) \ + break; \ + } \ + finish_wait(&wq, &__wait); \ +} while (0) + +/** + * wait_event_interruptible_lock_irq_timeout - sleep until a condition gets true or a timeout elapses. + * The condition is checked under the lock. This is expected + * to be called with the lock taken. + * @wq: the waitqueue to wait on + * @condition: a C expression for the event to wait for + * @lock: a locked spinlock_t, which will be released before schedule() + * and reacquired afterwards. + * @timeout: timeout, in jiffies + * + * The process is put to sleep (TASK_INTERRUPTIBLE) until the + * @condition evaluates to true or signal is received. The @condition is + * checked each time the waitqueue @wq is woken up. + * + * wake_up() has to be called after changing any variable that could + * change the result of the wait condition. + * + * This is supposed to be called while holding the lock. The lock is + * dropped before going to sleep and is reacquired afterwards. + * + * The function returns 0 if the @timeout elapsed, -ERESTARTSYS if it + * was interrupted by a signal, and the remaining jiffies otherwise + * if the condition evaluated to true before the timeout elapsed. + */ +#define wait_event_interruptible_lock_irq_timeout(wq, condition, lock, \ + timeout) \ +({ \ + int __ret = timeout; \ + \ + if (!(condition)) \ + __wait_event_interruptible_lock_irq_timeout( \ + wq, condition, lock, __ret); \ + __ret; \ +}) + /* * These are the old interfaces to sleep waiting for an event. diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h index 8a358a2c97e6..829627d7b846 100644 --- a/include/net/busy_poll.h +++ b/include/net/busy_poll.h @@ -123,6 +123,7 @@ static inline bool sk_busy_loop(struct sock *sk, int nonblock) /* local bh are disabled so it is ok to use _BH */ NET_ADD_STATS_BH(sock_net(sk), LINUX_MIB_BUSYPOLLRXPACKETS, rc); + cpu_relax(); } while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) && !need_resched() && !busy_loop_timeout(end_time)); diff --git a/include/net/genetlink.h b/include/net/genetlink.h index 93024a47e0e2..8e0b6c856a13 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -61,6 +61,7 @@ struct genl_family { struct list_head ops_list; /* private */ struct list_head family_list; /* private */ struct list_head mcast_groups; /* private */ + struct module *module; }; /** @@ -121,9 +122,24 @@ struct genl_ops { struct list_head ops_list; }; -extern int genl_register_family(struct genl_family *family); -extern int genl_register_family_with_ops(struct genl_family *family, +extern int __genl_register_family(struct genl_family *family); + +static inline int genl_register_family(struct genl_family *family) +{ + family->module = THIS_MODULE; + return __genl_register_family(family); +} + +extern int __genl_register_family_with_ops(struct genl_family *family, struct genl_ops *ops, size_t n_ops); + +static inline int genl_register_family_with_ops(struct genl_family *family, + struct genl_ops *ops, size_t n_ops) +{ + family->module = THIS_MODULE; + return __genl_register_family_with_ops(family, ops, n_ops); +} + extern int genl_unregister_family(struct genl_family *family); extern int genl_register_ops(struct genl_family *, struct genl_ops *ops); extern int genl_unregister_ops(struct genl_family *, struct genl_ops *ops); diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 260f83f16bcf..f667248202b6 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -135,6 +135,8 @@ extern void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu, extern void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu); extern void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark); +extern void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif, + u32 mark); extern void ip6_sk_redirect(struct sk_buff *skb, struct sock *sk); struct netlink_callback; diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 5b7a3dadadde..551ba6a6a073 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1499,6 +1499,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_SUPPORTS_RC_TABLE = 1<<24, IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF = 1<<25, IEEE80211_HW_TIMING_BEACON_ONLY = 1<<26, + IEEE80211_HW_SUPPORTS_HT_CCK_RATES = 1<<27, }; /** diff --git a/include/net/route.h b/include/net/route.h index 2ea40c1b5e00..afdeeb5bec25 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -317,4 +317,12 @@ static inline int ip4_dst_hoplimit(const struct dst_entry *dst) return hoplimit; } +static inline int ip_skb_dst_mtu(struct sk_buff *skb) +{ + struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL; + + return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ? + skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb)); +} + #endif /* _ROUTE_H */ diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 94ce082b29dc..e823786e7c66 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -341,10 +341,13 @@ struct xfrm_state_afinfo { struct sk_buff *skb); int (*transport_finish)(struct sk_buff *skb, int async); + void (*local_error)(struct sk_buff *skb, u32 mtu); }; extern int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo); extern int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo); +extern struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family); +extern void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo); extern void xfrm_state_delete_tunnel(struct xfrm_state *x); @@ -1477,6 +1480,7 @@ extern int xfrm_input_resume(struct sk_buff *skb, int nexthdr); extern int xfrm_output_resume(struct sk_buff *skb, int err); extern int xfrm_output(struct sk_buff *skb); extern int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb); +extern void xfrm_local_error(struct sk_buff *skb, int mtu); extern int xfrm4_extract_header(struct sk_buff *skb); extern int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi, @@ -1497,6 +1501,7 @@ extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short fam extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family); extern int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel *handler); extern int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel *handler); +extern void xfrm4_local_error(struct sk_buff *skb, u32 mtu); extern int xfrm6_extract_header(struct sk_buff *skb); extern int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi); @@ -1514,6 +1519,7 @@ extern int xfrm6_output(struct sk_buff *skb); extern int xfrm6_output_finish(struct sk_buff *skb); extern int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb, u8 **prevhdr); +extern void xfrm6_local_error(struct sk_buff *skb, u32 mtu); #ifdef CONFIG_XFRM extern int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb); diff --git a/include/uapi/linux/cm4000_cs.h b/include/uapi/linux/cm4000_cs.h index bc51f77db918..1217f751a1bc 100644 --- a/include/uapi/linux/cm4000_cs.h +++ b/include/uapi/linux/cm4000_cs.h @@ -2,6 +2,7 @@ #define _UAPI_CM4000_H_ #include <linux/types.h> +#include <linux/ioctl.h> #define MAX_ATR 33 diff --git a/include/uapi/linux/ip.h b/include/uapi/linux/ip.h index 6cf06bfd841b..2fee45bdec0a 100644 --- a/include/uapi/linux/ip.h +++ b/include/uapi/linux/ip.h @@ -133,4 +133,38 @@ struct ip_beet_phdr { __u8 reserved; }; +/* index values for the variables in ipv4_devconf */ +enum +{ + IPV4_DEVCONF_FORWARDING=1, + IPV4_DEVCONF_MC_FORWARDING, + IPV4_DEVCONF_PROXY_ARP, + IPV4_DEVCONF_ACCEPT_REDIRECTS, + IPV4_DEVCONF_SECURE_REDIRECTS, + IPV4_DEVCONF_SEND_REDIRECTS, + IPV4_DEVCONF_SHARED_MEDIA, + IPV4_DEVCONF_RP_FILTER, + IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE, + IPV4_DEVCONF_BOOTP_RELAY, + IPV4_DEVCONF_LOG_MARTIANS, + IPV4_DEVCONF_TAG, + IPV4_DEVCONF_ARPFILTER, + IPV4_DEVCONF_MEDIUM_ID, + IPV4_DEVCONF_NOXFRM, + IPV4_DEVCONF_NOPOLICY, + IPV4_DEVCONF_FORCE_IGMP_VERSION, + IPV4_DEVCONF_ARP_ANNOUNCE, + IPV4_DEVCONF_ARP_IGNORE, + IPV4_DEVCONF_PROMOTE_SECONDARIES, + IPV4_DEVCONF_ARP_ACCEPT, + IPV4_DEVCONF_ARP_NOTIFY, + IPV4_DEVCONF_ACCEPT_LOCAL, + IPV4_DEVCONF_SRC_VMARK, + IPV4_DEVCONF_PROXY_ARP_PVLAN, + IPV4_DEVCONF_ROUTE_LOCALNET, + __IPV4_DEVCONF_MAX +}; + +#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1) + #endif /* _UAPI_LINUX_IP_H */ diff --git a/init/Kconfig b/init/Kconfig index 247084be0590..fed81b576f29 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -955,7 +955,7 @@ config MEMCG_SWAP_ENABLED Memory Resource Controller Swap Extension comes with its price in a bigger memory consumption. General purpose distribution kernels which want to enable the feature but keep it disabled by default - and let the user enable it by swapaccount boot command line + and let the user enable it by swapaccount=1 boot command line parameter should have this option unselected. For those who want to have the feature enabled by default should select this option (if, for some reason, they need to disable it diff --git a/ipc/msg.c b/ipc/msg.c index bd60d7e159e8..b65fdf1a09dd 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -680,16 +680,18 @@ long do_msgsnd(int msqid, long mtype, void __user *mtext, goto out_unlock1; } + ipc_lock_object(&msq->q_perm); + for (;;) { struct msg_sender s; err = -EACCES; if (ipcperms(ns, &msq->q_perm, S_IWUGO)) - goto out_unlock1; + goto out_unlock0; err = security_msg_queue_msgsnd(msq, msg, msgflg); if (err) - goto out_unlock1; + goto out_unlock0; if (msgsz + msq->q_cbytes <= msq->q_qbytes && 1 + msq->q_qnum <= msq->q_qbytes) { @@ -699,10 +701,9 @@ long do_msgsnd(int msqid, long mtype, void __user *mtext, /* queue full, wait: */ if (msgflg & IPC_NOWAIT) { err = -EAGAIN; - goto out_unlock1; + goto out_unlock0; } - ipc_lock_object(&msq->q_perm); ss_add(msq, &s); if (!ipc_rcu_getref(msq)) { @@ -730,10 +731,7 @@ long do_msgsnd(int msqid, long mtype, void __user *mtext, goto out_unlock0; } - ipc_unlock_object(&msq->q_perm); } - - ipc_lock_object(&msq->q_perm); msq->q_lspid = task_tgid_vnr(current); msq->q_stime = get_seconds(); @@ -839,7 +837,7 @@ static inline void free_copy(struct msg_msg *copy) static struct msg_msg *find_msg(struct msg_queue *msq, long *msgtyp, int mode) { - struct msg_msg *msg; + struct msg_msg *msg, *found = NULL; long count = 0; list_for_each_entry(msg, &msq->q_messages, m_list) { @@ -848,6 +846,7 @@ static struct msg_msg *find_msg(struct msg_queue *msq, long *msgtyp, int mode) *msgtyp, mode)) { if (mode == SEARCH_LESSEQUAL && msg->m_type != 1) { *msgtyp = msg->m_type - 1; + found = msg; } else if (mode == SEARCH_NUMBER) { if (*msgtyp == count) return msg; @@ -857,7 +856,7 @@ static struct msg_msg *find_msg(struct msg_queue *msq, long *msgtyp, int mode) } } - return ERR_PTR(-EAGAIN); + return found ?: ERR_PTR(-EAGAIN); } long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgflg, diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 781845a013ab..e91963302c0d 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4480,6 +4480,7 @@ static int cgroup_destroy_locked(struct cgroup *cgrp) struct dentry *d = cgrp->dentry; struct cgroup_event *event, *tmp; struct cgroup_subsys *ss; + struct cgroup *child; bool empty; lockdep_assert_held(&d->d_inode->i_mutex); @@ -4490,12 +4491,28 @@ static int cgroup_destroy_locked(struct cgroup *cgrp) * @cgrp from being removed while __put_css_set() is in progress. */ read_lock(&css_set_lock); - empty = list_empty(&cgrp->cset_links) && list_empty(&cgrp->children); + empty = list_empty(&cgrp->cset_links); read_unlock(&css_set_lock); if (!empty) return -EBUSY; /* + * Make sure there's no live children. We can't test ->children + * emptiness as dead children linger on it while being destroyed; + * otherwise, "rmdir parent/child parent" may fail with -EBUSY. + */ + empty = true; + rcu_read_lock(); + list_for_each_entry_rcu(child, &cgrp->children, sibling) { + empty = cgroup_is_dead(child); + if (!empty) + break; + } + rcu_read_unlock(); + if (!empty) + return -EBUSY; + + /* * Block new css_tryget() by killing css refcnts. cgroup core * guarantees that, by the time ->css_offline() is invoked, no new * css reference will be given out via css_tryget(). We can't diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 010a0083c0ae..ea1966db34f2 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -475,13 +475,17 @@ static int validate_change(const struct cpuset *cur, const struct cpuset *trial) /* * Cpusets with tasks - existing or newly being attached - can't - * have empty cpus_allowed or mems_allowed. + * be changed to have empty cpus_allowed or mems_allowed. */ ret = -ENOSPC; - if ((cgroup_task_count(cur->css.cgroup) || cur->attach_in_progress) && - (cpumask_empty(trial->cpus_allowed) && - nodes_empty(trial->mems_allowed))) - goto out; + if ((cgroup_task_count(cur->css.cgroup) || cur->attach_in_progress)) { + if (!cpumask_empty(cur->cpus_allowed) && + cpumask_empty(trial->cpus_allowed)) + goto out; + if (!nodes_empty(cur->mems_allowed) && + nodes_empty(trial->mems_allowed)) + goto out; + } ret = 0; out: diff --git a/kernel/fork.c b/kernel/fork.c index e23bb19e2a3e..bf46287c91a4 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1177,7 +1177,8 @@ static struct task_struct *copy_process(unsigned long clone_flags, * don't allow the creation of threads. */ if ((clone_flags & (CLONE_VM|CLONE_NEWPID)) && - (task_active_pid_ns(current) != current->nsproxy->pid_ns)) + (task_active_pid_ns(current) != + current->nsproxy->pid_ns_for_children)) return ERR_PTR(-EINVAL); retval = security_task_create(clone_flags); @@ -1351,7 +1352,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, if (pid != &init_struct_pid) { retval = -ENOMEM; - pid = alloc_pid(p->nsproxy->pid_ns); + pid = alloc_pid(p->nsproxy->pid_ns_for_children); if (!pid) goto bad_fork_cleanup_io; } diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c index 364ceab15f0c..997cbb951a3b 100644 --- a/kernel/nsproxy.c +++ b/kernel/nsproxy.c @@ -29,15 +29,15 @@ static struct kmem_cache *nsproxy_cachep; struct nsproxy init_nsproxy = { - .count = ATOMIC_INIT(1), - .uts_ns = &init_uts_ns, + .count = ATOMIC_INIT(1), + .uts_ns = &init_uts_ns, #if defined(CONFIG_POSIX_MQUEUE) || defined(CONFIG_SYSVIPC) - .ipc_ns = &init_ipc_ns, + .ipc_ns = &init_ipc_ns, #endif - .mnt_ns = NULL, - .pid_ns = &init_pid_ns, + .mnt_ns = NULL, + .pid_ns_for_children = &init_pid_ns, #ifdef CONFIG_NET - .net_ns = &init_net, + .net_ns = &init_net, #endif }; @@ -85,9 +85,10 @@ static struct nsproxy *create_new_namespaces(unsigned long flags, goto out_ipc; } - new_nsp->pid_ns = copy_pid_ns(flags, user_ns, tsk->nsproxy->pid_ns); - if (IS_ERR(new_nsp->pid_ns)) { - err = PTR_ERR(new_nsp->pid_ns); + new_nsp->pid_ns_for_children = + copy_pid_ns(flags, user_ns, tsk->nsproxy->pid_ns_for_children); + if (IS_ERR(new_nsp->pid_ns_for_children)) { + err = PTR_ERR(new_nsp->pid_ns_for_children); goto out_pid; } @@ -100,8 +101,8 @@ static struct nsproxy *create_new_namespaces(unsigned long flags, return new_nsp; out_net: - if (new_nsp->pid_ns) - put_pid_ns(new_nsp->pid_ns); + if (new_nsp->pid_ns_for_children) + put_pid_ns(new_nsp->pid_ns_for_children); out_pid: if (new_nsp->ipc_ns) put_ipc_ns(new_nsp->ipc_ns); @@ -174,8 +175,8 @@ void free_nsproxy(struct nsproxy *ns) put_uts_ns(ns->uts_ns); if (ns->ipc_ns) put_ipc_ns(ns->ipc_ns); - if (ns->pid_ns) - put_pid_ns(ns->pid_ns); + if (ns->pid_ns_for_children) + put_pid_ns(ns->pid_ns_for_children); put_net(ns->net_ns); kmem_cache_free(nsproxy_cachep, ns); } diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 6917e8edb48e..601bb361c235 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -349,8 +349,8 @@ static int pidns_install(struct nsproxy *nsproxy, void *ns) if (ancestor != active) return -EINVAL; - put_pid_ns(nsproxy->pid_ns); - nsproxy->pid_ns = get_pid_ns(new); + put_pid_ns(nsproxy->pid_ns_for_children); + nsproxy->pid_ns_for_children = get_pid_ns(new); return 0; } diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c index a326f27d7f09..0b479a6a22bb 100644 --- a/kernel/time/sched_clock.c +++ b/kernel/time/sched_clock.c @@ -121,7 +121,7 @@ void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate) BUG_ON(bits > 32); WARN_ON(!irqs_disabled()); read_sched_clock = read; - sched_clock_mask = (1 << bits) - 1; + sched_clock_mask = (1ULL << bits) - 1; cd.rate = rate; /* calculate the mult/shift to convert counter ticks to ns. */ diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index e77edc97e036..e8a1516cc0a3 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -182,7 +182,8 @@ static bool can_stop_full_tick(void) * Don't allow the user to think they can get * full NO_HZ with this machine. */ - WARN_ONCE(1, "NO_HZ FULL will not work with unstable sched clock"); + WARN_ONCE(have_nohz_full_mask, + "NO_HZ FULL will not work with unstable sched clock"); return false; } #endif @@ -343,8 +344,6 @@ static int tick_nohz_init_all(void) void __init tick_nohz_init(void) { - int cpu; - if (!have_nohz_full_mask) { if (tick_nohz_init_all() < 0) return; diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index 3bdf28323012..61ed862cdd37 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -265,10 +265,9 @@ static inline void timer_list_header(struct seq_file *m, u64 now) static int timer_list_show(struct seq_file *m, void *v) { struct timer_list_iter *iter = v; - u64 now = ktime_to_ns(ktime_get()); if (iter->cpu == -1 && !iter->second_pass) - timer_list_header(m, now); + timer_list_header(m, iter->now); else if (!iter->second_pass) print_cpu(m, iter->cpu, iter->now); #ifdef CONFIG_GENERIC_CLOCKEVENTS @@ -298,33 +297,41 @@ void sysrq_timer_list_show(void) return; } -static void *timer_list_start(struct seq_file *file, loff_t *offset) +static void *move_iter(struct timer_list_iter *iter, loff_t offset) { - struct timer_list_iter *iter = file->private; - - if (!*offset) { - iter->cpu = -1; - iter->now = ktime_to_ns(ktime_get()); - } else if (iter->cpu >= nr_cpu_ids) { + for (; offset; offset--) { + iter->cpu = cpumask_next(iter->cpu, cpu_online_mask); + if (iter->cpu >= nr_cpu_ids) { #ifdef CONFIG_GENERIC_CLOCKEVENTS - if (!iter->second_pass) { - iter->cpu = -1; - iter->second_pass = true; - } else - return NULL; + if (!iter->second_pass) { + iter->cpu = -1; + iter->second_pass = true; + } else + return NULL; #else - return NULL; + return NULL; #endif + } } return iter; } +static void *timer_list_start(struct seq_file *file, loff_t *offset) +{ + struct timer_list_iter *iter = file->private; + + if (!*offset) + iter->now = ktime_to_ns(ktime_get()); + iter->cpu = -1; + iter->second_pass = false; + return move_iter(iter, *offset); +} + static void *timer_list_next(struct seq_file *file, void *v, loff_t *offset) { struct timer_list_iter *iter = file->private; - iter->cpu = cpumask_next(iter->cpu, cpu_online_mask); ++*offset; - return timer_list_start(file, offset); + return move_iter(iter, 1); } static void timer_list_stop(struct seq_file *seq, void *v) diff --git a/kernel/wait.c b/kernel/wait.c index dec68bd4e9d8..d550920e040c 100644 --- a/kernel/wait.c +++ b/kernel/wait.c @@ -363,8 +363,7 @@ EXPORT_SYMBOL(out_of_line_wait_on_atomic_t); /** * wake_up_atomic_t - Wake up a waiter on a atomic_t - * @word: The word being waited on, a kernel virtual address - * @bit: The bit of the word being waited on + * @p: The atomic_t being waited on, a kernel virtual address * * Wake up anyone waiting for the atomic_t to go to zero. * diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 7f5d4be22034..e93f7b9067d8 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -2201,6 +2201,15 @@ __acquires(&pool->lock) dump_stack(); } + /* + * The following prevents a kworker from hogging CPU on !PREEMPT + * kernels, where a requeueing work item waiting for something to + * happen could deadlock with stop_machine as such work item could + * indefinitely requeue itself while all other CPUs are trapped in + * stop_machine. + */ + cond_resched(); + spin_lock_irq(&pool->lock); /* clear cpu intensive status */ diff --git a/lib/Kconfig b/lib/Kconfig index 71d9f81f6eed..65561716c16c 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -48,6 +48,16 @@ config STMP_DEVICE config PERCPU_RWSEM boolean +config ARCH_USE_CMPXCHG_LOCKREF + bool + +config CMPXCHG_LOCKREF + def_bool y if ARCH_USE_CMPXCHG_LOCKREF + depends on SMP + depends on !GENERIC_LOCKBREAK + depends on !DEBUG_SPINLOCK + depends on !DEBUG_LOCK_ALLOC + config CRC_CCITT tristate "CRC-CCITT functions" help diff --git a/lib/Makefile b/lib/Makefile index 7baccfd8a4e9..f2cb3082697c 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -20,6 +20,7 @@ lib-$(CONFIG_MMU) += ioremap.o lib-$(CONFIG_SMP) += cpumask.o lib-y += kobject.o klist.o +obj-y += lockref.o obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \ bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \ diff --git a/lib/lockref.c b/lib/lockref.c new file mode 100644 index 000000000000..7819c2d1d315 --- /dev/null +++ b/lib/lockref.c @@ -0,0 +1,127 @@ +#include <linux/export.h> +#include <linux/lockref.h> + +#ifdef CONFIG_CMPXCHG_LOCKREF + +/* + * Note that the "cmpxchg()" reloads the "old" value for the + * failure case. + */ +#define CMPXCHG_LOOP(CODE, SUCCESS) do { \ + struct lockref old; \ + BUILD_BUG_ON(sizeof(old) != 8); \ + old.lock_count = ACCESS_ONCE(lockref->lock_count); \ + while (likely(arch_spin_value_unlocked(old.lock.rlock.raw_lock))) { \ + struct lockref new = old, prev = old; \ + CODE \ + old.lock_count = cmpxchg(&lockref->lock_count, \ + old.lock_count, new.lock_count); \ + if (likely(old.lock_count == prev.lock_count)) { \ + SUCCESS; \ + } \ + } \ +} while (0) + +#else + +#define CMPXCHG_LOOP(CODE, SUCCESS) do { } while (0) + +#endif + +/** + * lockref_get - Increments reference count unconditionally + * @lockcnt: pointer to lockref structure + * + * This operation is only valid if you already hold a reference + * to the object, so you know the count cannot be zero. + */ +void lockref_get(struct lockref *lockref) +{ + CMPXCHG_LOOP( + new.count++; + , + return; + ); + + spin_lock(&lockref->lock); + lockref->count++; + spin_unlock(&lockref->lock); +} +EXPORT_SYMBOL(lockref_get); + +/** + * lockref_get_not_zero - Increments count unless the count is 0 + * @lockcnt: pointer to lockref structure + * Return: 1 if count updated successfully or 0 if count was zero + */ +int lockref_get_not_zero(struct lockref *lockref) +{ + int retval; + + CMPXCHG_LOOP( + new.count++; + if (!old.count) + return 0; + , + return 1; + ); + + spin_lock(&lockref->lock); + retval = 0; + if (lockref->count) { + lockref->count++; + retval = 1; + } + spin_unlock(&lockref->lock); + return retval; +} +EXPORT_SYMBOL(lockref_get_not_zero); + +/** + * lockref_get_or_lock - Increments count unless the count is 0 + * @lockcnt: pointer to lockref structure + * Return: 1 if count updated successfully or 0 if count was zero + * and we got the lock instead. + */ +int lockref_get_or_lock(struct lockref *lockref) +{ + CMPXCHG_LOOP( + new.count++; + if (!old.count) + break; + , + return 1; + ); + + spin_lock(&lockref->lock); + if (!lockref->count) + return 0; + lockref->count++; + spin_unlock(&lockref->lock); + return 1; +} +EXPORT_SYMBOL(lockref_get_or_lock); + +/** + * lockref_put_or_lock - decrements count unless count <= 1 before decrement + * @lockcnt: pointer to lockref structure + * Return: 1 if count updated successfully or 0 if count <= 1 and lock taken + */ +int lockref_put_or_lock(struct lockref *lockref) +{ + CMPXCHG_LOOP( + new.count--; + if (old.count <= 1) + break; + , + return 1; + ); + + spin_lock(&lockref->lock); + if (lockref->count <= 1) + return 0; + lockref->count--; + spin_unlock(&lockref->lock); + return 1; +} +EXPORT_SYMBOL(lockref_put_or_lock); diff --git a/lib/lz4/lz4_compress.c b/lib/lz4/lz4_compress.c index fd94058bd7f9..28321d8f75ef 100644 --- a/lib/lz4/lz4_compress.c +++ b/lib/lz4/lz4_compress.c @@ -437,7 +437,7 @@ int lz4_compress(const unsigned char *src, size_t src_len, exit: return ret; } -EXPORT_SYMBOL_GPL(lz4_compress); +EXPORT_SYMBOL(lz4_compress); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("Dual BSD/GPL"); MODULE_DESCRIPTION("LZ4 compressor"); diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c index d3414eae73a1..411be80ddb46 100644 --- a/lib/lz4/lz4_decompress.c +++ b/lib/lz4/lz4_decompress.c @@ -299,7 +299,7 @@ exit_0: return ret; } #ifndef STATIC -EXPORT_SYMBOL_GPL(lz4_decompress); +EXPORT_SYMBOL(lz4_decompress); #endif int lz4_decompress_unknownoutputsize(const char *src, size_t src_len, @@ -319,8 +319,8 @@ exit_0: return ret; } #ifndef STATIC -EXPORT_SYMBOL_GPL(lz4_decompress_unknownoutputsize); +EXPORT_SYMBOL(lz4_decompress_unknownoutputsize); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("Dual BSD/GPL"); MODULE_DESCRIPTION("LZ4 Decompressor"); #endif diff --git a/lib/lz4/lz4hc_compress.c b/lib/lz4/lz4hc_compress.c index eb1a74f5e368..f344f76b6559 100644 --- a/lib/lz4/lz4hc_compress.c +++ b/lib/lz4/lz4hc_compress.c @@ -533,7 +533,7 @@ int lz4hc_compress(const unsigned char *src, size_t src_len, exit: return ret; } -EXPORT_SYMBOL_GPL(lz4hc_compress); +EXPORT_SYMBOL(lz4hc_compress); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("Dual BSD/GPL"); MODULE_DESCRIPTION("LZ4HC compressor"); diff --git a/mm/memcontrol.c b/mm/memcontrol.c index c5792a5d87ce..0878ff7c26a9 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -6969,7 +6969,6 @@ struct cgroup_subsys mem_cgroup_subsys = { #ifdef CONFIG_MEMCG_SWAP static int __init enable_swap_account(char *s) { - /* consider enabled if no parameter or 1 is given */ if (!strcmp(s, "1")) really_do_swap_account = 1; else if (!strcmp(s, "0")) diff --git a/mm/mremap.c b/mm/mremap.c index 457d34ef3bf2..0843feb66f3d 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -15,6 +15,7 @@ #include <linux/swap.h> #include <linux/capability.h> #include <linux/fs.h> +#include <linux/swapops.h> #include <linux/highmem.h> #include <linux/security.h> #include <linux/syscalls.h> @@ -69,6 +70,23 @@ static pmd_t *alloc_new_pmd(struct mm_struct *mm, struct vm_area_struct *vma, return pmd; } +static pte_t move_soft_dirty_pte(pte_t pte) +{ + /* + * Set soft dirty bit so we can notice + * in userspace the ptes were moved. + */ +#ifdef CONFIG_MEM_SOFT_DIRTY + if (pte_present(pte)) + pte = pte_mksoft_dirty(pte); + else if (is_swap_pte(pte)) + pte = pte_swp_mksoft_dirty(pte); + else if (pte_file(pte)) + pte = pte_file_mksoft_dirty(pte); +#endif + return pte; +} + static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd, unsigned long old_addr, unsigned long old_end, struct vm_area_struct *new_vma, pmd_t *new_pmd, @@ -126,7 +144,8 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd, continue; pte = ptep_get_and_clear(mm, old_addr, old_pte); pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr); - set_pte_at(mm, new_addr, new_pte, pte_mksoft_dirty(pte)); + pte = move_soft_dirty_pte(pte); + set_pte_at(mm, new_addr, new_pte, pte); } arch_leave_lazy_mmu_mode(); diff --git a/mm/rmap.c b/mm/rmap.c index b2e29acd7e3d..07748e68b729 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -873,9 +873,6 @@ int page_referenced(struct page *page, vm_flags); if (we_locked) unlock_page(page); - - if (page_test_and_clear_young(page_to_pfn(page))) - referenced++; } out: return referenced; diff --git a/mm/shmem.c b/mm/shmem.c index 8335dbd3fc35..e43dc555069d 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2909,14 +2909,8 @@ EXPORT_SYMBOL_GPL(shmem_truncate_range); /* common code */ -static char *shmem_dname(struct dentry *dentry, char *buffer, int buflen) -{ - return dynamic_dname(dentry, buffer, buflen, "/%s (deleted)", - dentry->d_name.name); -} - static struct dentry_operations anon_ops = { - .d_dname = shmem_dname + .d_dname = simple_dname }; /** diff --git a/mm/slab.h b/mm/slab.h index 620ceeddbe1a..a535033f7e9a 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -162,6 +162,8 @@ static inline const char *cache_name(struct kmem_cache *s) static inline struct kmem_cache *cache_from_memcg(struct kmem_cache *s, int idx) { + if (!s->memcg_params) + return NULL; return s->memcg_params->memcg_caches[idx]; } diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c index 688a0419756b..857e1b8349ee 100644 --- a/net/batman-adv/unicast.c +++ b/net/batman-adv/unicast.c @@ -432,12 +432,16 @@ find_router: switch (packet_type) { case BATADV_UNICAST: - batadv_unicast_prepare_skb(skb, orig_node); + if (!batadv_unicast_prepare_skb(skb, orig_node)) + goto out; + header_len = sizeof(struct batadv_unicast_packet); break; case BATADV_UNICAST_4ADDR: - batadv_unicast_4addr_prepare_skb(bat_priv, skb, orig_node, - packet_subtype); + if (!batadv_unicast_4addr_prepare_skb(bat_priv, skb, orig_node, + packet_subtype)) + goto out; + header_len = sizeof(struct batadv_unicast_4addr_packet); break; default: diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 69363bd37f64..89659d4ed1f9 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -71,7 +71,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) mdst = br_mdb_get(br, skb, vid); if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) && - br_multicast_querier_exists(br)) + br_multicast_querier_exists(br, eth_hdr(skb))) br_multicast_deliver(mdst, skb); else br_flood_deliver(br, skb, false); diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 60aca9109a50..ffd5874f2592 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -161,7 +161,7 @@ void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr) if (!pv) return; - for_each_set_bit_from(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) { + for_each_set_bit_from(vid, pv->vlan_bitmap, VLAN_N_VID) { f = __br_fdb_get(br, br->dev->dev_addr, vid); if (f && f->is_local && !f->dst) fdb_delete(br, f); @@ -730,7 +730,7 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], /* VID was specified, so use it. */ err = __br_fdb_add(ndm, p, addr, nlh_flags, vid); } else { - if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN)) { + if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) { err = __br_fdb_add(ndm, p, addr, nlh_flags, 0); goto out; } @@ -739,7 +739,7 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], * specify a VLAN. To be nice, add/update entry for every * vlan on this port. */ - for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) { + for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) { err = __br_fdb_add(ndm, p, addr, nlh_flags, vid); if (err) goto out; @@ -817,7 +817,7 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], err = __br_fdb_delete(p, addr, vid); } else { - if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN)) { + if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) { err = __br_fdb_delete(p, addr, 0); goto out; } @@ -827,7 +827,7 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], * vlan on this port. */ err = -ENOENT; - for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) { + for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) { err &= __br_fdb_delete(p, addr, vid); } } diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index 8c561c0aa636..a2fd37ec35f7 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -102,7 +102,7 @@ int br_handle_frame_finish(struct sk_buff *skb) } else if (is_multicast_ether_addr(dest)) { mdst = br_mdb_get(br, skb, vid); if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) && - br_multicast_querier_exists(br)) { + br_multicast_querier_exists(br, eth_hdr(skb))) { if ((mdst && mdst->mglist) || br_multicast_is_router(br)) skb2 = skb; diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index 0daae3ec2355..6319c4333c39 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -414,16 +414,20 @@ static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry) if (!netif_running(br->dev) || br->multicast_disabled) return -EINVAL; - if (timer_pending(&br->multicast_querier_timer)) - return -EBUSY; - ip.proto = entry->addr.proto; - if (ip.proto == htons(ETH_P_IP)) + if (ip.proto == htons(ETH_P_IP)) { + if (timer_pending(&br->ip4_querier.timer)) + return -EBUSY; + ip.u.ip4 = entry->addr.u.ip4; #if IS_ENABLED(CONFIG_IPV6) - else + } else { + if (timer_pending(&br->ip6_querier.timer)) + return -EBUSY; + ip.u.ip6 = entry->addr.u.ip6; #endif + } spin_lock_bh(&br->multicast_lock); mdb = mlock_dereference(br->mdb, br); diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 08e576ada0b2..bbcb43582496 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -33,7 +33,8 @@ #include "br_private.h" -static void br_multicast_start_querier(struct net_bridge *br); +static void br_multicast_start_querier(struct net_bridge *br, + struct bridge_mcast_query *query); unsigned int br_mdb_rehash_seq; static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b) @@ -755,20 +756,35 @@ static void br_multicast_local_router_expired(unsigned long data) { } -static void br_multicast_querier_expired(unsigned long data) +static void br_multicast_querier_expired(struct net_bridge *br, + struct bridge_mcast_query *query) { - struct net_bridge *br = (void *)data; - spin_lock(&br->multicast_lock); if (!netif_running(br->dev) || br->multicast_disabled) goto out; - br_multicast_start_querier(br); + br_multicast_start_querier(br, query); out: spin_unlock(&br->multicast_lock); } +static void br_ip4_multicast_querier_expired(unsigned long data) +{ + struct net_bridge *br = (void *)data; + + br_multicast_querier_expired(br, &br->ip4_query); +} + +#if IS_ENABLED(CONFIG_IPV6) +static void br_ip6_multicast_querier_expired(unsigned long data) +{ + struct net_bridge *br = (void *)data; + + br_multicast_querier_expired(br, &br->ip6_query); +} +#endif + static void __br_multicast_send_query(struct net_bridge *br, struct net_bridge_port *port, struct br_ip *ip) @@ -789,37 +805,45 @@ static void __br_multicast_send_query(struct net_bridge *br, } static void br_multicast_send_query(struct net_bridge *br, - struct net_bridge_port *port, u32 sent) + struct net_bridge_port *port, + struct bridge_mcast_query *query) { unsigned long time; struct br_ip br_group; + struct bridge_mcast_querier *querier = NULL; if (!netif_running(br->dev) || br->multicast_disabled || - !br->multicast_querier || - timer_pending(&br->multicast_querier_timer)) + !br->multicast_querier) return; memset(&br_group.u, 0, sizeof(br_group.u)); - br_group.proto = htons(ETH_P_IP); - __br_multicast_send_query(br, port, &br_group); - + if (port ? (query == &port->ip4_query) : + (query == &br->ip4_query)) { + querier = &br->ip4_querier; + br_group.proto = htons(ETH_P_IP); #if IS_ENABLED(CONFIG_IPV6) - br_group.proto = htons(ETH_P_IPV6); - __br_multicast_send_query(br, port, &br_group); + } else { + querier = &br->ip6_querier; + br_group.proto = htons(ETH_P_IPV6); #endif + } + + if (!querier || timer_pending(&querier->timer)) + return; + + __br_multicast_send_query(br, port, &br_group); time = jiffies; - time += sent < br->multicast_startup_query_count ? + time += query->startup_sent < br->multicast_startup_query_count ? br->multicast_startup_query_interval : br->multicast_query_interval; - mod_timer(port ? &port->multicast_query_timer : - &br->multicast_query_timer, time); + mod_timer(&query->timer, time); } -static void br_multicast_port_query_expired(unsigned long data) +static void br_multicast_port_query_expired(struct net_bridge_port *port, + struct bridge_mcast_query *query) { - struct net_bridge_port *port = (void *)data; struct net_bridge *br = port->br; spin_lock(&br->multicast_lock); @@ -827,25 +851,43 @@ static void br_multicast_port_query_expired(unsigned long data) port->state == BR_STATE_BLOCKING) goto out; - if (port->multicast_startup_queries_sent < - br->multicast_startup_query_count) - port->multicast_startup_queries_sent++; + if (query->startup_sent < br->multicast_startup_query_count) + query->startup_sent++; - br_multicast_send_query(port->br, port, - port->multicast_startup_queries_sent); + br_multicast_send_query(port->br, port, query); out: spin_unlock(&br->multicast_lock); } +static void br_ip4_multicast_port_query_expired(unsigned long data) +{ + struct net_bridge_port *port = (void *)data; + + br_multicast_port_query_expired(port, &port->ip4_query); +} + +#if IS_ENABLED(CONFIG_IPV6) +static void br_ip6_multicast_port_query_expired(unsigned long data) +{ + struct net_bridge_port *port = (void *)data; + + br_multicast_port_query_expired(port, &port->ip6_query); +} +#endif + void br_multicast_add_port(struct net_bridge_port *port) { port->multicast_router = 1; setup_timer(&port->multicast_router_timer, br_multicast_router_expired, (unsigned long)port); - setup_timer(&port->multicast_query_timer, - br_multicast_port_query_expired, (unsigned long)port); + setup_timer(&port->ip4_query.timer, br_ip4_multicast_port_query_expired, + (unsigned long)port); +#if IS_ENABLED(CONFIG_IPV6) + setup_timer(&port->ip6_query.timer, br_ip6_multicast_port_query_expired, + (unsigned long)port); +#endif } void br_multicast_del_port(struct net_bridge_port *port) @@ -853,13 +895,13 @@ void br_multicast_del_port(struct net_bridge_port *port) del_timer_sync(&port->multicast_router_timer); } -static void __br_multicast_enable_port(struct net_bridge_port *port) +static void br_multicast_enable(struct bridge_mcast_query *query) { - port->multicast_startup_queries_sent = 0; + query->startup_sent = 0; - if (try_to_del_timer_sync(&port->multicast_query_timer) >= 0 || - del_timer(&port->multicast_query_timer)) - mod_timer(&port->multicast_query_timer, jiffies); + if (try_to_del_timer_sync(&query->timer) >= 0 || + del_timer(&query->timer)) + mod_timer(&query->timer, jiffies); } void br_multicast_enable_port(struct net_bridge_port *port) @@ -870,7 +912,10 @@ void br_multicast_enable_port(struct net_bridge_port *port) if (br->multicast_disabled || !netif_running(br->dev)) goto out; - __br_multicast_enable_port(port); + br_multicast_enable(&port->ip4_query); +#if IS_ENABLED(CONFIG_IPV6) + br_multicast_enable(&port->ip6_query); +#endif out: spin_unlock(&br->multicast_lock); @@ -889,7 +934,10 @@ void br_multicast_disable_port(struct net_bridge_port *port) if (!hlist_unhashed(&port->rlist)) hlist_del_init_rcu(&port->rlist); del_timer(&port->multicast_router_timer); - del_timer(&port->multicast_query_timer); + del_timer(&port->ip4_query.timer); +#if IS_ENABLED(CONFIG_IPV6) + del_timer(&port->ip6_query.timer); +#endif spin_unlock(&br->multicast_lock); } @@ -1014,14 +1062,15 @@ static int br_ip6_multicast_mld2_report(struct net_bridge *br, } #endif -static void br_multicast_update_querier_timer(struct net_bridge *br, - unsigned long max_delay) +static void +br_multicast_update_querier_timer(struct net_bridge *br, + struct bridge_mcast_querier *querier, + unsigned long max_delay) { - if (!timer_pending(&br->multicast_querier_timer)) - br->multicast_querier_delay_time = jiffies + max_delay; + if (!timer_pending(&querier->timer)) + querier->delay_time = jiffies + max_delay; - mod_timer(&br->multicast_querier_timer, - jiffies + br->multicast_querier_interval); + mod_timer(&querier->timer, jiffies + br->multicast_querier_interval); } /* @@ -1074,12 +1123,13 @@ timer: static void br_multicast_query_received(struct net_bridge *br, struct net_bridge_port *port, + struct bridge_mcast_querier *querier, int saddr, unsigned long max_delay) { if (saddr) - br_multicast_update_querier_timer(br, max_delay); - else if (timer_pending(&br->multicast_querier_timer)) + br_multicast_update_querier_timer(br, querier, max_delay); + else if (timer_pending(&querier->timer)) return; br_multicast_mark_router(br, port); @@ -1129,7 +1179,8 @@ static int br_ip4_multicast_query(struct net_bridge *br, IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE) : 1; } - br_multicast_query_received(br, port, !!iph->saddr, max_delay); + br_multicast_query_received(br, port, &br->ip4_querier, !!iph->saddr, + max_delay); if (!group) goto out; @@ -1203,11 +1254,12 @@ static int br_ip6_multicast_query(struct net_bridge *br, mld2q = (struct mld2_query *)icmp6_hdr(skb); if (!mld2q->mld2q_nsrcs) group = &mld2q->mld2q_mca; - max_delay = mld2q->mld2q_mrc ? MLDV2_MRC(ntohs(mld2q->mld2q_mrc)) : 1; + + max_delay = max(msecs_to_jiffies(MLDV2_MRC(ntohs(mld2q->mld2q_mrc))), 1UL); } - br_multicast_query_received(br, port, !ipv6_addr_any(&ip6h->saddr), - max_delay); + br_multicast_query_received(br, port, &br->ip6_querier, + !ipv6_addr_any(&ip6h->saddr), max_delay); if (!group) goto out; @@ -1244,7 +1296,9 @@ out: static void br_multicast_leave_group(struct net_bridge *br, struct net_bridge_port *port, - struct br_ip *group) + struct br_ip *group, + struct bridge_mcast_querier *querier, + struct bridge_mcast_query *query) { struct net_bridge_mdb_htable *mdb; struct net_bridge_mdb_entry *mp; @@ -1255,7 +1309,7 @@ static void br_multicast_leave_group(struct net_bridge *br, spin_lock(&br->multicast_lock); if (!netif_running(br->dev) || (port && port->state == BR_STATE_DISABLED) || - timer_pending(&br->multicast_querier_timer)) + timer_pending(&querier->timer)) goto out; mdb = mlock_dereference(br->mdb, br); @@ -1263,14 +1317,13 @@ static void br_multicast_leave_group(struct net_bridge *br, if (!mp) goto out; - if (br->multicast_querier && - !timer_pending(&br->multicast_querier_timer)) { + if (br->multicast_querier) { __br_multicast_send_query(br, port, &mp->addr); time = jiffies + br->multicast_last_member_count * br->multicast_last_member_interval; - mod_timer(port ? &port->multicast_query_timer : - &br->multicast_query_timer, time); + + mod_timer(&query->timer, time); for (p = mlock_dereference(mp->ports, br); p != NULL; @@ -1323,7 +1376,6 @@ static void br_multicast_leave_group(struct net_bridge *br, mod_timer(&mp->timer, time); } } - out: spin_unlock(&br->multicast_lock); } @@ -1334,6 +1386,8 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br, __u16 vid) { struct br_ip br_group; + struct bridge_mcast_query *query = port ? &port->ip4_query : + &br->ip4_query; if (ipv4_is_local_multicast(group)) return; @@ -1342,7 +1396,7 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br, br_group.proto = htons(ETH_P_IP); br_group.vid = vid; - br_multicast_leave_group(br, port, &br_group); + br_multicast_leave_group(br, port, &br_group, &br->ip4_querier, query); } #if IS_ENABLED(CONFIG_IPV6) @@ -1352,6 +1406,9 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br, __u16 vid) { struct br_ip br_group; + struct bridge_mcast_query *query = port ? &port->ip6_query : + &br->ip6_query; + if (!ipv6_is_transient_multicast(group)) return; @@ -1360,7 +1417,7 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br, br_group.proto = htons(ETH_P_IPV6); br_group.vid = vid; - br_multicast_leave_group(br, port, &br_group); + br_multicast_leave_group(br, port, &br_group, &br->ip6_querier, query); } #endif @@ -1622,19 +1679,32 @@ int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, return 0; } -static void br_multicast_query_expired(unsigned long data) +static void br_multicast_query_expired(struct net_bridge *br, + struct bridge_mcast_query *query) +{ + spin_lock(&br->multicast_lock); + if (query->startup_sent < br->multicast_startup_query_count) + query->startup_sent++; + + br_multicast_send_query(br, NULL, query); + spin_unlock(&br->multicast_lock); +} + +static void br_ip4_multicast_query_expired(unsigned long data) { struct net_bridge *br = (void *)data; - spin_lock(&br->multicast_lock); - if (br->multicast_startup_queries_sent < - br->multicast_startup_query_count) - br->multicast_startup_queries_sent++; + br_multicast_query_expired(br, &br->ip4_query); +} - br_multicast_send_query(br, NULL, br->multicast_startup_queries_sent); +#if IS_ENABLED(CONFIG_IPV6) +static void br_ip6_multicast_query_expired(unsigned long data) +{ + struct net_bridge *br = (void *)data; - spin_unlock(&br->multicast_lock); + br_multicast_query_expired(br, &br->ip6_query); } +#endif void br_multicast_init(struct net_bridge *br) { @@ -1654,25 +1724,43 @@ void br_multicast_init(struct net_bridge *br) br->multicast_querier_interval = 255 * HZ; br->multicast_membership_interval = 260 * HZ; - br->multicast_querier_delay_time = 0; + br->ip4_querier.delay_time = 0; +#if IS_ENABLED(CONFIG_IPV6) + br->ip6_querier.delay_time = 0; +#endif spin_lock_init(&br->multicast_lock); setup_timer(&br->multicast_router_timer, br_multicast_local_router_expired, 0); - setup_timer(&br->multicast_querier_timer, - br_multicast_querier_expired, (unsigned long)br); - setup_timer(&br->multicast_query_timer, br_multicast_query_expired, + setup_timer(&br->ip4_querier.timer, br_ip4_multicast_querier_expired, + (unsigned long)br); + setup_timer(&br->ip4_query.timer, br_ip4_multicast_query_expired, (unsigned long)br); +#if IS_ENABLED(CONFIG_IPV6) + setup_timer(&br->ip6_querier.timer, br_ip6_multicast_querier_expired, + (unsigned long)br); + setup_timer(&br->ip6_query.timer, br_ip6_multicast_query_expired, + (unsigned long)br); +#endif } -void br_multicast_open(struct net_bridge *br) +static void __br_multicast_open(struct net_bridge *br, + struct bridge_mcast_query *query) { - br->multicast_startup_queries_sent = 0; + query->startup_sent = 0; if (br->multicast_disabled) return; - mod_timer(&br->multicast_query_timer, jiffies); + mod_timer(&query->timer, jiffies); +} + +void br_multicast_open(struct net_bridge *br) +{ + __br_multicast_open(br, &br->ip4_query); +#if IS_ENABLED(CONFIG_IPV6) + __br_multicast_open(br, &br->ip6_query); +#endif } void br_multicast_stop(struct net_bridge *br) @@ -1684,8 +1772,12 @@ void br_multicast_stop(struct net_bridge *br) int i; del_timer_sync(&br->multicast_router_timer); - del_timer_sync(&br->multicast_querier_timer); - del_timer_sync(&br->multicast_query_timer); + del_timer_sync(&br->ip4_querier.timer); + del_timer_sync(&br->ip4_query.timer); +#if IS_ENABLED(CONFIG_IPV6) + del_timer_sync(&br->ip6_querier.timer); + del_timer_sync(&br->ip6_query.timer); +#endif spin_lock_bh(&br->multicast_lock); mdb = mlock_dereference(br->mdb, br); @@ -1788,18 +1880,24 @@ unlock: return err; } -static void br_multicast_start_querier(struct net_bridge *br) +static void br_multicast_start_querier(struct net_bridge *br, + struct bridge_mcast_query *query) { struct net_bridge_port *port; - br_multicast_open(br); + __br_multicast_open(br, query); list_for_each_entry(port, &br->port_list, list) { if (port->state == BR_STATE_DISABLED || port->state == BR_STATE_BLOCKING) continue; - __br_multicast_enable_port(port); + if (query == &br->ip4_query) + br_multicast_enable(&port->ip4_query); +#if IS_ENABLED(CONFIG_IPV6) + else + br_multicast_enable(&port->ip6_query); +#endif } } @@ -1834,7 +1932,10 @@ rollback: goto rollback; } - br_multicast_start_querier(br); + br_multicast_start_querier(br, &br->ip4_query); +#if IS_ENABLED(CONFIG_IPV6) + br_multicast_start_querier(br, &br->ip6_query); +#endif unlock: spin_unlock_bh(&br->multicast_lock); @@ -1857,10 +1958,18 @@ int br_multicast_set_querier(struct net_bridge *br, unsigned long val) goto unlock; max_delay = br->multicast_query_response_interval; - if (!timer_pending(&br->multicast_querier_timer)) - br->multicast_querier_delay_time = jiffies + max_delay; - br_multicast_start_querier(br); + if (!timer_pending(&br->ip4_querier.timer)) + br->ip4_querier.delay_time = jiffies + max_delay; + + br_multicast_start_querier(br, &br->ip4_query); + +#if IS_ENABLED(CONFIG_IPV6) + if (!timer_pending(&br->ip6_querier.timer)) + br->ip6_querier.delay_time = jiffies + max_delay; + + br_multicast_start_querier(br, &br->ip6_query); +#endif unlock: spin_unlock_bh(&br->multicast_lock); diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 1fc30abd3a52..b9259efa636e 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -132,7 +132,7 @@ static int br_fill_ifinfo(struct sk_buff *skb, else pv = br_get_vlan_info(br); - if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN)) + if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) goto done; af = nla_nest_start(skb, IFLA_AF_SPEC); @@ -140,7 +140,7 @@ static int br_fill_ifinfo(struct sk_buff *skb, goto nla_put_failure; pvid = br_get_pvid(pv); - for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) { + for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) { vinfo.vid = vid; vinfo.flags = 0; if (vid == pvid) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 2f7da41851bf..263ba9034468 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -66,6 +66,20 @@ struct br_ip __u16 vid; }; +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING +/* our own querier */ +struct bridge_mcast_query { + struct timer_list timer; + u32 startup_sent; +}; + +/* other querier */ +struct bridge_mcast_querier { + struct timer_list timer; + unsigned long delay_time; +}; +#endif + struct net_port_vlans { u16 port_idx; u16 pvid; @@ -162,10 +176,12 @@ struct net_bridge_port #define BR_FLOOD 0x00000040 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING - u32 multicast_startup_queries_sent; + struct bridge_mcast_query ip4_query; +#if IS_ENABLED(CONFIG_IPV6) + struct bridge_mcast_query ip6_query; +#endif /* IS_ENABLED(CONFIG_IPV6) */ unsigned char multicast_router; struct timer_list multicast_router_timer; - struct timer_list multicast_query_timer; struct hlist_head mglist; struct hlist_node rlist; #endif @@ -258,7 +274,6 @@ struct net_bridge u32 hash_max; u32 multicast_last_member_count; - u32 multicast_startup_queries_sent; u32 multicast_startup_query_count; unsigned long multicast_last_member_interval; @@ -267,15 +282,18 @@ struct net_bridge unsigned long multicast_query_interval; unsigned long multicast_query_response_interval; unsigned long multicast_startup_query_interval; - unsigned long multicast_querier_delay_time; spinlock_t multicast_lock; struct net_bridge_mdb_htable __rcu *mdb; struct hlist_head router_list; struct timer_list multicast_router_timer; - struct timer_list multicast_querier_timer; - struct timer_list multicast_query_timer; + struct bridge_mcast_querier ip4_querier; + struct bridge_mcast_query ip4_query; +#if IS_ENABLED(CONFIG_IPV6) + struct bridge_mcast_querier ip6_querier; + struct bridge_mcast_query ip6_query; +#endif /* IS_ENABLED(CONFIG_IPV6) */ #endif struct timer_list hello_timer; @@ -503,11 +521,27 @@ static inline bool br_multicast_is_router(struct net_bridge *br) timer_pending(&br->multicast_router_timer)); } -static inline bool br_multicast_querier_exists(struct net_bridge *br) +static inline bool +__br_multicast_querier_exists(struct net_bridge *br, + struct bridge_mcast_querier *querier) +{ + return time_is_before_jiffies(querier->delay_time) && + (br->multicast_querier || timer_pending(&querier->timer)); +} + +static inline bool br_multicast_querier_exists(struct net_bridge *br, + struct ethhdr *eth) { - return time_is_before_jiffies(br->multicast_querier_delay_time) && - (br->multicast_querier || - timer_pending(&br->multicast_querier_timer)); + switch (eth->h_proto) { + case (htons(ETH_P_IP)): + return __br_multicast_querier_exists(br, &br->ip4_querier); +#if IS_ENABLED(CONFIG_IPV6) + case (htons(ETH_P_IPV6)): + return __br_multicast_querier_exists(br, &br->ip6_querier); +#endif + default: + return false; + } } #else static inline int br_multicast_rcv(struct net_bridge *br, @@ -565,7 +599,8 @@ static inline bool br_multicast_is_router(struct net_bridge *br) { return 0; } -static inline bool br_multicast_querier_exists(struct net_bridge *br) +static inline bool br_multicast_querier_exists(struct net_bridge *br, + struct ethhdr *eth) { return false; } diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index bd58b45f5f90..9a9ffe7e4019 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -108,7 +108,7 @@ static int __vlan_del(struct net_port_vlans *v, u16 vid) clear_bit(vid, v->vlan_bitmap); v->num_vlans--; - if (bitmap_empty(v->vlan_bitmap, BR_VLAN_BITMAP_LEN)) { + if (bitmap_empty(v->vlan_bitmap, VLAN_N_VID)) { if (v->port_idx) rcu_assign_pointer(v->parent.port->vlan_info, NULL); else @@ -122,7 +122,7 @@ static void __vlan_flush(struct net_port_vlans *v) { smp_wmb(); v->pvid = 0; - bitmap_zero(v->vlan_bitmap, BR_VLAN_BITMAP_LEN); + bitmap_zero(v->vlan_bitmap, VLAN_N_VID); if (v->port_idx) rcu_assign_pointer(v->parent.port->vlan_info, NULL); else diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index b84a1b155bc1..d12e3a9a5356 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -346,14 +346,9 @@ u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb) if (new_index < 0) new_index = skb_tx_hash(dev, skb); - if (queue_index != new_index && sk) { - struct dst_entry *dst = - rcu_dereference_check(sk->sk_dst_cache, 1); - - if (dst && skb_dst(skb) == dst) - sk_tx_queue_set(sk, queue_index); - - } + if (queue_index != new_index && sk && + rcu_access_pointer(sk->sk_dst_cache)) + sk_tx_queue_set(sk, queue_index); queue_index = new_index; } diff --git a/net/core/scm.c b/net/core/scm.c index 03795d0147f2..b4da80b1cc07 100644 --- a/net/core/scm.c +++ b/net/core/scm.c @@ -54,7 +54,7 @@ static __inline__ int scm_check_creds(struct ucred *creds) return -EINVAL; if ((creds->pid == task_tgid_vnr(current) || - ns_capable(current->nsproxy->pid_ns->user_ns, CAP_SYS_ADMIN)) && + ns_capable(task_active_pid_ns(current)->user_ns, CAP_SYS_ADMIN)) && ((uid_eq(uid, cred->uid) || uid_eq(uid, cred->euid) || uid_eq(uid, cred->suid)) || nsown_capable(CAP_SETUID)) && ((gid_eq(gid, cred->gid) || gid_eq(gid, cred->egid) || diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 4bcabf3ab4ca..9ee17e3d11c3 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -211,14 +211,6 @@ static inline int ip_finish_output2(struct sk_buff *skb) return -EINVAL; } -static inline int ip_skb_dst_mtu(struct sk_buff *skb) -{ - struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL; - - return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ? - skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb)); -} - static int ip_finish_output(struct sk_buff *skb) { #if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM) diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 51fc2a1dcdd3..b3ac3c3f6219 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -190,15 +190,14 @@ static int ipip_rcv(struct sk_buff *skb) struct ip_tunnel *tunnel; const struct iphdr *iph; - if (iptunnel_pull_header(skb, 0, tpi.proto)) - goto drop; - iph = ip_hdr(skb); tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY, iph->saddr, iph->daddr, 0); if (tunnel) { if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) goto drop; + if (iptunnel_pull_header(skb, 0, tpi.proto)) + goto drop; return ip_tunnel_rcv(tunnel, skb, &tpi, log_ecn_error); } diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index dd44e0ab600c..61e60d67adca 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -571,7 +571,8 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE, inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol, - inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP, + inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP | + (inet->hdrincl ? FLOWI_FLAG_KNOWN_NH : 0), daddr, saddr, 0, 0); if (!inet->hdrincl) { diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 5423223e93c2..b2f6c74861af 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1121,6 +1121,13 @@ new_segment: goto wait_for_memory; /* + * All packets are restored as if they have + * already been sent. + */ + if (tp->repair) + TCP_SKB_CB(skb)->when = tcp_time_stamp; + + /* * Check whether we can use HW checksum. */ if (sk->sk_route_caps & NETIF_F_ALL_CSUM) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 28af45abe062..3ca2139a130b 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -3535,7 +3535,10 @@ static bool tcp_parse_aligned_timestamp(struct tcp_sock *tp, const struct tcphdr ++ptr; tp->rx_opt.rcv_tsval = ntohl(*ptr); ++ptr; - tp->rx_opt.rcv_tsecr = ntohl(*ptr) - tp->tsoffset; + if (*ptr) + tp->rx_opt.rcv_tsecr = ntohl(*ptr) - tp->tsoffset; + else + tp->rx_opt.rcv_tsecr = 0; return true; } return false; @@ -3560,7 +3563,7 @@ static bool tcp_fast_parse_options(const struct sk_buff *skb, } tcp_parse_options(skb, &tp->rx_opt, 1, NULL); - if (tp->rx_opt.saw_tstamp) + if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr) tp->rx_opt.rcv_tsecr -= tp->tsoffset; return true; @@ -5316,7 +5319,7 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb, int saved_clamp = tp->rx_opt.mss_clamp; tcp_parse_options(skb, &tp->rx_opt, 0, &foc); - if (tp->rx_opt.saw_tstamp) + if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr) tp->rx_opt.rcv_tsecr -= tp->tsoffset; if (th->ack) { diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 92fde8d1aa82..170737a9d56d 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2670,7 +2670,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst, int tcp_header_size; int mss; - skb = alloc_skb(MAX_TCP_HEADER + 15, sk_gfp_atomic(sk, GFP_ATOMIC)); + skb = sock_wmalloc(sk, MAX_TCP_HEADER + 15, 1, GFP_ATOMIC); if (unlikely(!skb)) { dst_release(dst); return NULL; @@ -2814,6 +2814,8 @@ void tcp_connect_init(struct sock *sk) if (likely(!tp->repair)) tp->rcv_nxt = 0; + else + tp->rcv_tstamp = tcp_time_stamp; tp->rcv_wup = tp->rcv_nxt; tp->copied_seq = tp->rcv_nxt; diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c index 327a617d594c..baa0f63731fd 100644 --- a/net/ipv4/xfrm4_output.c +++ b/net/ipv4/xfrm4_output.c @@ -21,7 +21,6 @@ static int xfrm4_tunnel_check_size(struct sk_buff *skb) { int mtu, ret = 0; - struct dst_entry *dst; if (IPCB(skb)->flags & IPSKB_XFRM_TUNNEL_SIZE) goto out; @@ -29,12 +28,10 @@ static int xfrm4_tunnel_check_size(struct sk_buff *skb) if (!(ip_hdr(skb)->frag_off & htons(IP_DF)) || skb->local_df) goto out; - dst = skb_dst(skb); - mtu = dst_mtu(dst); + mtu = dst_mtu(skb_dst(skb)); if (skb->len > mtu) { if (skb->sk) - ip_local_error(skb->sk, EMSGSIZE, ip_hdr(skb)->daddr, - inet_sk(skb->sk)->inet_dport, mtu); + xfrm_local_error(skb, mtu); else icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu)); @@ -99,3 +96,12 @@ int xfrm4_output(struct sk_buff *skb) x->outer_mode->afinfo->output_finish, !(IPCB(skb)->flags & IPSKB_REROUTED)); } + +void xfrm4_local_error(struct sk_buff *skb, u32 mtu) +{ + struct iphdr *hdr; + + hdr = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb); + ip_local_error(skb->sk, EMSGSIZE, hdr->daddr, + inet_sk(skb->sk)->inet_dport, mtu); +} diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c index 9258e751baba..0b2a0641526a 100644 --- a/net/ipv4/xfrm4_state.c +++ b/net/ipv4/xfrm4_state.c @@ -83,6 +83,7 @@ static struct xfrm_state_afinfo xfrm4_state_afinfo = { .extract_input = xfrm4_extract_input, .extract_output = xfrm4_extract_output, .transport_finish = xfrm4_transport_finish, + .local_error = xfrm4_local_error, }; void __init xfrm4_state_init(void) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index da4241c8c7da..498ea99194af 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1126,12 +1126,10 @@ retry: if (ifp->flags & IFA_F_OPTIMISTIC) addr_flags |= IFA_F_OPTIMISTIC; - ift = !max_addresses || - ipv6_count_addresses(idev) < max_addresses ? - ipv6_add_addr(idev, &addr, NULL, tmp_plen, - ipv6_addr_scope(&addr), addr_flags, - tmp_valid_lft, tmp_prefered_lft) : NULL; - if (IS_ERR_OR_NULL(ift)) { + ift = ipv6_add_addr(idev, &addr, NULL, tmp_plen, + ipv6_addr_scope(&addr), addr_flags, + tmp_valid_lft, tmp_prefered_lft); + if (IS_ERR(ift)) { in6_ifa_put(ifp); in6_dev_put(idev); pr_info("%s: retry temporary address regeneration\n", __func__); diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index ecd60733e5e2..90747f1973fe 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -724,6 +724,11 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb, ipv6_push_nfrag_opts(skb, &opt.ops, &proto, NULL); } + if (likely(!skb->encapsulation)) { + skb_reset_inner_headers(skb); + skb->encapsulation = 1; + } + skb_push(skb, gre_hlen); skb_reset_network_header(skb); skb_set_transport_header(skb, sizeof(*ipv6h)); diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 6e3ddf806ec2..e7ceb6c871d1 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -238,6 +238,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6, hdr->saddr = fl6->saddr; hdr->daddr = *first_hop; + skb->protocol = htons(ETH_P_IPV6); skb->priority = sk->sk_priority; skb->mark = sk->sk_mark; @@ -1057,6 +1058,7 @@ static inline int ip6_ufo_append_data(struct sock *sk, /* initialize protocol header pointer */ skb->transport_header = skb->network_header + fragheaderlen; + skb->protocol = htons(ETH_P_IPV6); skb->ip_summed = CHECKSUM_PARTIAL; skb->csum = 0; } @@ -1359,6 +1361,7 @@ alloc_new_skb: /* * Fill in the control structures */ + skb->protocol = htons(ETH_P_IPV6); skb->ip_summed = CHECKSUM_NONE; skb->csum = 0; /* reserve for fragmentation and ipsec header */ diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 1e55866cead7..46ba243605a3 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1027,6 +1027,12 @@ static int ip6_tnl_xmit2(struct sk_buff *skb, init_tel_txopt(&opt, encap_limit); ipv6_push_nfrag_opts(skb, &opt.ops, &proto, NULL); } + + if (likely(!skb->encapsulation)) { + skb_reset_inner_headers(skb); + skb->encapsulation = 1; + } + skb_push(skb, sizeof(struct ipv6hdr)); skb_reset_network_header(skb); ipv6h = ipv6_hdr(skb); diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 79aa9652ed86..04d31c2fbef1 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1369,8 +1369,10 @@ static void ndisc_redirect_rcv(struct sk_buff *skb) if (!ndisc_parse_options(msg->opt, ndoptlen, &ndopts)) return; - if (!ndopts.nd_opts_rh) + if (!ndopts.nd_opts_rh) { + ip6_redirect_no_header(skb, dev_net(skb->dev), 0, 0); return; + } hdr = (u8 *)ndopts.nd_opts_rh; hdr += 8; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index c45f7a5c36e9..cdaed47ba932 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -628,6 +628,7 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length, goto error; skb_reserve(skb, hlen); + skb->protocol = htons(ETH_P_IPV6); skb->priority = sk->sk_priority; skb->mark = sk->sk_mark; skb_dst_set(skb, &rt->dst); diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 790d9f4b8b0b..1aeb473b2cc6 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -490,6 +490,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev, ipv6_hdr(head)->payload_len = htons(payload_len); ipv6_change_dsfield(ipv6_hdr(head), 0xff, ecn); IP6CB(head)->nhoff = nhoff; + IP6CB(head)->flags |= IP6SKB_FRAGMENTED; /* Yes, and fold redundant checksum back. 8) */ if (head->ip_summed == CHECKSUM_COMPLETE) @@ -524,6 +525,9 @@ static int ipv6_frag_rcv(struct sk_buff *skb) struct net *net = dev_net(skb_dst(skb)->dev); int evicted; + if (IP6CB(skb)->flags & IP6SKB_FRAGMENTED) + goto fail_hdr; + IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMREQDS); /* Jumbo payload inhibits frag. header */ @@ -544,6 +548,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb) ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMOKS); IP6CB(skb)->nhoff = (u8 *)fhdr - skb_network_header(skb); + IP6CB(skb)->flags |= IP6SKB_FRAGMENTED; return 1; } diff --git a/net/ipv6/route.c b/net/ipv6/route.c index b70f8979003b..8d9a93ed9c59 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1178,6 +1178,27 @@ void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark) } EXPORT_SYMBOL_GPL(ip6_redirect); +void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif, + u32 mark) +{ + const struct ipv6hdr *iph = ipv6_hdr(skb); + const struct rd_msg *msg = (struct rd_msg *)icmp6_hdr(skb); + struct dst_entry *dst; + struct flowi6 fl6; + + memset(&fl6, 0, sizeof(fl6)); + fl6.flowi6_oif = oif; + fl6.flowi6_mark = mark; + fl6.flowi6_flags = 0; + fl6.daddr = msg->dest; + fl6.saddr = iph->daddr; + + dst = ip6_route_output(net, NULL, &fl6); + if (!dst->error) + rt6_do_redirect(dst, NULL, skb); + dst_release(dst); +} + void ip6_sk_redirect(struct sk_buff *skb, struct sock *sk) { ip6_redirect(skb, sock_net(sk), sk->sk_bound_dev_if, sk->sk_mark); diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index a3437a4cd07e..21b25dd8466b 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -645,11 +645,7 @@ static int ipip_rcv(struct sk_buff *skb) const struct iphdr *iph; struct ip_tunnel *tunnel; - if (iptunnel_pull_header(skb, 0, tpi.proto)) - goto drop; - iph = ip_hdr(skb); - tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev, iph->saddr, iph->daddr); if (tunnel != NULL) { @@ -659,6 +655,8 @@ static int ipip_rcv(struct sk_buff *skb) if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) goto drop; + if (iptunnel_pull_header(skb, 0, tpi.proto)) + goto drop; return ip_tunnel_rcv(tunnel, skb, &tpi, log_ecn_error); } @@ -888,6 +886,11 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb, ttl = iph6->hop_limit; tos = INET_ECN_encapsulate(tos, ipv6_get_dsfield(iph6)); + if (likely(!skb->encapsulation)) { + skb_reset_inner_headers(skb); + skb->encapsulation = 1; + } + err = iptunnel_xmit(dev_net(dev), rt, skb, fl4.saddr, fl4.daddr, IPPROTO_IPV6, tos, ttl, df); iptunnel_xmit_stats(err, &dev->stats, dev->tstats); diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c index 8755a3079d0f..6cd625e37706 100644 --- a/net/ipv6/xfrm6_output.c +++ b/net/ipv6/xfrm6_output.c @@ -34,8 +34,10 @@ static int xfrm6_local_dontfrag(struct sk_buff *skb) struct sock *sk = skb->sk; if (sk) { - proto = sk->sk_protocol; + if (sk->sk_family != AF_INET6) + return 0; + proto = sk->sk_protocol; if (proto == IPPROTO_UDP || proto == IPPROTO_RAW) return inet6_sk(sk)->dontfrag; } @@ -54,13 +56,15 @@ static void xfrm6_local_rxpmtu(struct sk_buff *skb, u32 mtu) ipv6_local_rxpmtu(sk, &fl6, mtu); } -static void xfrm6_local_error(struct sk_buff *skb, u32 mtu) +void xfrm6_local_error(struct sk_buff *skb, u32 mtu) { struct flowi6 fl6; + const struct ipv6hdr *hdr; struct sock *sk = skb->sk; + hdr = skb->encapsulation ? inner_ipv6_hdr(skb) : ipv6_hdr(skb); fl6.fl6_dport = inet_sk(sk)->inet_dport; - fl6.daddr = ipv6_hdr(skb)->daddr; + fl6.daddr = hdr->daddr; ipv6_local_error(sk, EMSGSIZE, &fl6, mtu); } @@ -80,7 +84,7 @@ static int xfrm6_tunnel_check_size(struct sk_buff *skb) if (xfrm6_local_dontfrag(skb)) xfrm6_local_rxpmtu(skb, mtu); else if (skb->sk) - xfrm6_local_error(skb, mtu); + xfrm_local_error(skb, mtu); else icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); ret = -EMSGSIZE; @@ -136,13 +140,18 @@ static int __xfrm6_output(struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); struct xfrm_state *x = dst->xfrm; - int mtu = ip6_skb_dst_mtu(skb); + int mtu; + + if (skb->protocol == htons(ETH_P_IPV6)) + mtu = ip6_skb_dst_mtu(skb); + else + mtu = dst_mtu(skb_dst(skb)); if (skb->len > mtu && xfrm6_local_dontfrag(skb)) { xfrm6_local_rxpmtu(skb, mtu); return -EMSGSIZE; } else if (!skb->local_df && skb->len > mtu && skb->sk) { - xfrm6_local_error(skb, mtu); + xfrm_local_error(skb, mtu); return -EMSGSIZE; } diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c index d8c70b8efc24..3fc970135fc6 100644 --- a/net/ipv6/xfrm6_state.c +++ b/net/ipv6/xfrm6_state.c @@ -183,6 +183,7 @@ static struct xfrm_state_afinfo xfrm6_state_afinfo = { .extract_input = xfrm6_extract_input, .extract_output = xfrm6_extract_output, .transport_finish = xfrm6_transport_finish, + .local_error = xfrm6_local_error, }; int __init xfrm6_state_init(void) diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index ea7b9c2c7e66..2d45643c964e 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -36,7 +36,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, const u8 *bssid, const int beacon_int, - struct ieee80211_channel *chan, + struct cfg80211_chan_def *req_chandef, const u32 basic_rates, const u16 capability, u64 tsf, bool creator) @@ -51,6 +51,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, u32 bss_change; u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; struct cfg80211_chan_def chandef; + struct ieee80211_channel *chan; struct beacon_data *presp; int frame_len; @@ -81,7 +82,9 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0; - chandef = ifibss->chandef; + /* make a copy of the chandef, it could be modified below. */ + chandef = *req_chandef; + chan = chandef.chan; if (!cfg80211_reg_can_beacon(local->hw.wiphy, &chandef)) { chandef.width = NL80211_CHAN_WIDTH_20; chandef.center_freq1 = chan->center_freq; @@ -259,10 +262,12 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, struct cfg80211_bss *cbss = container_of((void *)bss, struct cfg80211_bss, priv); struct ieee80211_supported_band *sband; + struct cfg80211_chan_def chandef; u32 basic_rates; int i, j; u16 beacon_int = cbss->beacon_interval; const struct cfg80211_bss_ies *ies; + enum nl80211_channel_type chan_type; u64 tsf; sdata_assert_lock(sdata); @@ -270,6 +275,26 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, if (beacon_int < 10) beacon_int = 10; + switch (sdata->u.ibss.chandef.width) { + case NL80211_CHAN_WIDTH_20_NOHT: + case NL80211_CHAN_WIDTH_20: + case NL80211_CHAN_WIDTH_40: + chan_type = cfg80211_get_chandef_type(&sdata->u.ibss.chandef); + cfg80211_chandef_create(&chandef, cbss->channel, chan_type); + break; + case NL80211_CHAN_WIDTH_5: + case NL80211_CHAN_WIDTH_10: + cfg80211_chandef_create(&chandef, cbss->channel, + NL80211_CHAN_WIDTH_20_NOHT); + chandef.width = sdata->u.ibss.chandef.width; + break; + default: + /* fall back to 20 MHz for unsupported modes */ + cfg80211_chandef_create(&chandef, cbss->channel, + NL80211_CHAN_WIDTH_20_NOHT); + break; + } + sband = sdata->local->hw.wiphy->bands[cbss->channel->band]; basic_rates = 0; @@ -294,7 +319,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, __ieee80211_sta_join_ibss(sdata, cbss->bssid, beacon_int, - cbss->channel, + &chandef, basic_rates, cbss->capability, tsf, false); @@ -736,7 +761,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) sdata->drop_unencrypted = 0; __ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int, - ifibss->chandef.chan, ifibss->basic_rates, + &ifibss->chandef, ifibss->basic_rates, capability, 0, true); } @@ -1138,6 +1163,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata) clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_IBSS); + ieee80211_vif_release_channel(sdata); synchronize_rcu(); kfree(presp); diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index f5aed963b22e..f3bbea1eb9e7 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -828,6 +828,9 @@ minstrel_ht_update_cck(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, if (sband->band != IEEE80211_BAND_2GHZ) return; + if (!(mp->hw->flags & IEEE80211_HW_SUPPORTS_HT_CCK_RATES)) + return; + mi->cck_supported = 0; mi->cck_supported_short = 0; for (i = 0; i < 4; i++) { diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index f85f8a2ad6cf..0c741cec4d0d 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -364,7 +364,7 @@ int genl_unregister_ops(struct genl_family *family, struct genl_ops *ops) EXPORT_SYMBOL(genl_unregister_ops); /** - * genl_register_family - register a generic netlink family + * __genl_register_family - register a generic netlink family * @family: generic netlink family * * Registers the specified family after validating it first. Only one @@ -374,7 +374,7 @@ EXPORT_SYMBOL(genl_unregister_ops); * * Return 0 on success or a negative error code. */ -int genl_register_family(struct genl_family *family) +int __genl_register_family(struct genl_family *family) { int err = -EINVAL; @@ -430,10 +430,10 @@ errout_locked: errout: return err; } -EXPORT_SYMBOL(genl_register_family); +EXPORT_SYMBOL(__genl_register_family); /** - * genl_register_family_with_ops - register a generic netlink family + * __genl_register_family_with_ops - register a generic netlink family * @family: generic netlink family * @ops: operations to be registered * @n_ops: number of elements to register @@ -457,12 +457,12 @@ EXPORT_SYMBOL(genl_register_family); * * Return 0 on success or a negative error code. */ -int genl_register_family_with_ops(struct genl_family *family, +int __genl_register_family_with_ops(struct genl_family *family, struct genl_ops *ops, size_t n_ops) { int err, i; - err = genl_register_family(family); + err = __genl_register_family(family); if (err) return err; @@ -476,7 +476,7 @@ err_out: genl_unregister_family(family); return err; } -EXPORT_SYMBOL(genl_register_family_with_ops); +EXPORT_SYMBOL(__genl_register_family_with_ops); /** * genl_unregister_family - unregister generic netlink family @@ -544,6 +544,30 @@ void *genlmsg_put(struct sk_buff *skb, u32 portid, u32 seq, } EXPORT_SYMBOL(genlmsg_put); +static int genl_lock_dumpit(struct sk_buff *skb, struct netlink_callback *cb) +{ + struct genl_ops *ops = cb->data; + int rc; + + genl_lock(); + rc = ops->dumpit(skb, cb); + genl_unlock(); + return rc; +} + +static int genl_lock_done(struct netlink_callback *cb) +{ + struct genl_ops *ops = cb->data; + int rc = 0; + + if (ops->done) { + genl_lock(); + rc = ops->done(cb); + genl_unlock(); + } + return rc; +} + static int genl_family_rcv_msg(struct genl_family *family, struct sk_buff *skb, struct nlmsghdr *nlh) @@ -572,15 +596,34 @@ static int genl_family_rcv_msg(struct genl_family *family, return -EPERM; if ((nlh->nlmsg_flags & NLM_F_DUMP) == NLM_F_DUMP) { - struct netlink_dump_control c = { - .dump = ops->dumpit, - .done = ops->done, - }; + int rc; if (ops->dumpit == NULL) return -EOPNOTSUPP; - return netlink_dump_start(net->genl_sock, skb, nlh, &c); + if (!family->parallel_ops) { + struct netlink_dump_control c = { + .module = family->module, + .data = ops, + .dump = genl_lock_dumpit, + .done = genl_lock_done, + }; + + genl_unlock(); + rc = __netlink_dump_start(net->genl_sock, skb, nlh, &c); + genl_lock(); + + } else { + struct netlink_dump_control c = { + .module = family->module, + .dump = ops->dumpit, + .done = ops->done, + }; + + rc = __netlink_dump_start(net->genl_sock, skb, nlh, &c); + } + + return rc; } if (ops->doit == NULL) @@ -789,10 +832,6 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb) struct net *net = sock_net(skb->sk); int chains_to_skip = cb->args[0]; int fams_to_skip = cb->args[1]; - bool need_locking = chains_to_skip || fams_to_skip; - - if (need_locking) - genl_lock(); for (i = chains_to_skip; i < GENL_FAM_TAB_SIZE; i++) { n = 0; @@ -814,9 +853,6 @@ errout: cb->args[0] = i; cb->args[1] = n; - if (need_locking) - genl_unlock(); - return skb->len; } diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 4b66c752eae5..75c8bbf598c8 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -3259,9 +3259,11 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, if (po->tp_version == TPACKET_V3) { lv = sizeof(struct tpacket_stats_v3); + st.stats3.tp_packets += st.stats3.tp_drops; data = &st.stats3; } else { lv = sizeof(struct tpacket_stats); + st.stats1.tp_packets += st.stats1.tp_drops; data = &st.stats1; } diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 75edcfad6e26..1504bb11e4f3 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -207,10 +207,13 @@ _shift_data_right_pages(struct page **pages, size_t pgto_base, pgfrom_base -= copy; vto = kmap_atomic(*pgto); - vfrom = kmap_atomic(*pgfrom); - memmove(vto + pgto_base, vfrom + pgfrom_base, copy); + if (*pgto != *pgfrom) { + vfrom = kmap_atomic(*pgfrom); + memcpy(vto + pgto_base, vfrom + pgfrom_base, copy); + kunmap_atomic(vfrom); + } else + memmove(vto + pgto_base, vto + pgfrom_base, copy); flush_dcache_page(*pgto); - kunmap_atomic(vfrom); kunmap_atomic(vto); } while ((len -= copy) != 0); diff --git a/net/tipc/socket.c b/net/tipc/socket.c index ce8249c76827..6cc7ddd2fb7c 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1257,7 +1257,7 @@ static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf) /* Accept only ACK or NACK message */ if (unlikely(msg_errcode(msg))) { sock->state = SS_DISCONNECTING; - sk->sk_err = -ECONNREFUSED; + sk->sk_err = ECONNREFUSED; retval = TIPC_OK; break; } @@ -1268,7 +1268,7 @@ static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf) res = auto_connect(sock, msg); if (res) { sock->state = SS_DISCONNECTING; - sk->sk_err = res; + sk->sk_err = -res; retval = TIPC_OK; break; } diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 3fcba69817e5..5f6e982cdcf4 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2622,8 +2622,8 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, NL80211_CMD_NEW_KEY); - if (IS_ERR(hdr)) - return PTR_ERR(hdr); + if (!hdr) + return -ENOBUFS; cookie.msg = msg; cookie.idx = key_idx; @@ -6507,6 +6507,9 @@ static int nl80211_testmode_dump(struct sk_buff *skb, NL80211_CMD_TESTMODE); struct nlattr *tmdata; + if (!hdr) + break; + if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { genlmsg_cancel(skb, hdr); break; @@ -6951,9 +6954,8 @@ static int nl80211_remain_on_channel(struct sk_buff *skb, hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, NL80211_CMD_REMAIN_ON_CHANNEL); - - if (IS_ERR(hdr)) { - err = PTR_ERR(hdr); + if (!hdr) { + err = -ENOBUFS; goto free_msg; } @@ -7251,9 +7253,8 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, NL80211_CMD_FRAME); - - if (IS_ERR(hdr)) { - err = PTR_ERR(hdr); + if (!hdr) { + err = -ENOBUFS; goto free_msg; } } @@ -8132,9 +8133,8 @@ static int nl80211_probe_client(struct sk_buff *skb, hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, NL80211_CMD_PROBE_CLIENT); - - if (IS_ERR(hdr)) { - err = PTR_ERR(hdr); + if (!hdr) { + err = -ENOBUFS; goto free_msg; } diff --git a/net/wireless/sme.c b/net/wireless/sme.c index 81c8a10d743c..20e86a95dc4e 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -976,21 +976,19 @@ int cfg80211_disconnect(struct cfg80211_registered_device *rdev, struct net_device *dev, u16 reason, bool wextev) { struct wireless_dev *wdev = dev->ieee80211_ptr; - int err; + int err = 0; ASSERT_WDEV_LOCK(wdev); kfree(wdev->connect_keys); wdev->connect_keys = NULL; - if (wdev->conn) { + if (wdev->conn) err = cfg80211_sme_disconnect(wdev, reason); - } else if (!rdev->ops->disconnect) { + else if (!rdev->ops->disconnect) cfg80211_mlme_down(rdev, dev); - err = 0; - } else { + else if (wdev->current_bss) err = rdev_disconnect(rdev, dev, reason); - } return err; } diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c index eb4a84288648..3bb2cdc13b46 100644 --- a/net/xfrm/xfrm_output.c +++ b/net/xfrm/xfrm_output.c @@ -214,5 +214,26 @@ int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb) return inner_mode->afinfo->extract_output(x, skb); } +void xfrm_local_error(struct sk_buff *skb, int mtu) +{ + unsigned int proto; + struct xfrm_state_afinfo *afinfo; + + if (skb->protocol == htons(ETH_P_IP)) + proto = AF_INET; + else if (skb->protocol == htons(ETH_P_IPV6)) + proto = AF_INET6; + else + return; + + afinfo = xfrm_state_get_afinfo(proto); + if (!afinfo) + return; + + afinfo->local_error(skb, mtu); + xfrm_state_put_afinfo(afinfo); +} + EXPORT_SYMBOL_GPL(xfrm_output); EXPORT_SYMBOL_GPL(xfrm_inner_extract_output); +EXPORT_SYMBOL_GPL(xfrm_local_error); diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index e52cab3591dd..f77c371ea72b 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -320,10 +320,8 @@ static void xfrm_queue_purge(struct sk_buff_head *list) { struct sk_buff *skb; - while ((skb = skb_dequeue(list)) != NULL) { - dev_put(skb->dev); + while ((skb = skb_dequeue(list)) != NULL) kfree_skb(skb); - } } /* Rule must be locked. Release descentant resources, announce @@ -1758,7 +1756,6 @@ static void xfrm_policy_queue_process(unsigned long arg) struct sk_buff *skb; struct sock *sk; struct dst_entry *dst; - struct net_device *dev; struct xfrm_policy *pol = (struct xfrm_policy *)arg; struct xfrm_policy_queue *pq = &pol->polq; struct flowi fl; @@ -1805,7 +1802,6 @@ static void xfrm_policy_queue_process(unsigned long arg) dst = xfrm_lookup(xp_net(pol), skb_dst(skb)->path, &fl, skb->sk, 0); if (IS_ERR(dst)) { - dev_put(skb->dev); kfree_skb(skb); continue; } @@ -1814,9 +1810,7 @@ static void xfrm_policy_queue_process(unsigned long arg) skb_dst_drop(skb); skb_dst_set(skb, dst); - dev = skb->dev; err = dst_output(skb); - dev_put(dev); } return; @@ -1839,7 +1833,6 @@ static int xdst_queue_output(struct sk_buff *skb) } skb_dst_force(skb); - dev_hold(skb->dev); spin_lock_bh(&pq->hold_queue.lock); diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 78f66fa92449..54c0acd29468 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -39,9 +39,6 @@ static DEFINE_SPINLOCK(xfrm_state_lock); static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024; -static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family); -static void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo); - static inline unsigned int xfrm_dst_hash(struct net *net, const xfrm_address_t *daddr, const xfrm_address_t *saddr, @@ -1860,7 +1857,7 @@ int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo) } EXPORT_SYMBOL(xfrm_state_unregister_afinfo); -static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family) +struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family) { struct xfrm_state_afinfo *afinfo; if (unlikely(family >= NPROTO)) @@ -1872,7 +1869,7 @@ static struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family) return afinfo; } -static void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo) +void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo) { rcu_read_unlock(); } diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c index 103b33373fd4..6effe99bbb9c 100644 --- a/sound/isa/opti9xx/opti92x-ad1848.c +++ b/sound/isa/opti9xx/opti92x-ad1848.c @@ -173,11 +173,7 @@ MODULE_DEVICE_TABLE(pnp_card, snd_opti9xx_pnpids); #endif /* CONFIG_PNP */ -#ifdef OPTi93X -#define DEV_NAME "opti93x" -#else -#define DEV_NAME "opti92x" -#endif +#define DEV_NAME KBUILD_MODNAME static char * snd_opti9xx_names[] = { "unknown", @@ -1167,7 +1163,7 @@ static int snd_opti9xx_pnp_resume(struct pnp_card_link *pcard) static struct pnp_card_driver opti9xx_pnpc_driver = { .flags = PNP_DRIVER_RES_DISABLE, - .name = "opti9xx", + .name = DEV_NAME, .id_table = snd_opti9xx_pnpids, .probe = snd_opti9xx_pnp_probe, .remove = snd_opti9xx_pnp_remove, diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 030ca8652a1c..9f3586276871 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1781,6 +1781,9 @@ static int generic_hdmi_build_controls(struct hda_codec *codec) struct snd_pcm_chmap *chmap; struct snd_kcontrol *kctl; int i; + + if (!codec->pcm_info[pin_idx].pcm) + break; err = snd_pcm_add_chmap_ctls(codec->pcm_info[pin_idx].pcm, SNDRV_PCM_STREAM_PLAYBACK, NULL, 0, pin_idx, &chmap); diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index f303cd898515..389db4c2801b 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -4336,6 +4336,7 @@ static const struct hda_fixup alc662_fixups[] = { static const struct snd_pci_quirk alc662_fixup_tbl[] = { SND_PCI_QUIRK(0x1019, 0x9087, "ECS", ALC662_FIXUP_ASUS_MODE2), + SND_PCI_QUIRK(0x1025, 0x022f, "Acer Aspire One", ALC662_FIXUP_INV_DMIC), SND_PCI_QUIRK(0x1025, 0x0308, "Acer Aspire 8942G", ALC662_FIXUP_ASPIRE), SND_PCI_QUIRK(0x1025, 0x031c, "Gateway NV79", ALC662_FIXUP_SKU_IGNORE), SND_PCI_QUIRK(0x1025, 0x0349, "eMachines eM250", ALC662_FIXUP_INV_DMIC), |
