From f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 4 Apr 2011 13:44:59 +0900 Subject: usb: renesas_usbhs: Add Renesas USBHS common code Renesas SuperH has USBHS IP which can switch Host / Function. This driver is designed so that Host / Function may dynamically change. This patch add usb/renesas_usbhs and common code for SuperH USBHS. Signed-off-by: Kuninori Morimoto Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/renesas_usbhs.h | 149 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 149 insertions(+) create mode 100644 include/linux/usb/renesas_usbhs.h (limited to 'include/linux/usb') diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h new file mode 100644 index 000000000000..565bca3aa440 --- /dev/null +++ b/include/linux/usb/renesas_usbhs.h @@ -0,0 +1,149 @@ +/* + * Renesas USB + * + * Copyright (C) 2011 Renesas Solutions Corp. + * Kuninori Morimoto + * + * 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 St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ +#ifndef RENESAS_USB_H +#define RENESAS_USB_H +#include +#include + +/* + * module type + * + * it will be return value from get_id + */ +enum { + USBHS_HOST = 0, + USBHS_GADGET, + USBHS_MAX, +}; + +/* + * callback functions table for driver + * + * These functions are called from platform for driver. + * Callback function's pointer will be set before + * renesas_usbhs_platform_callback :: hardware_init was called + */ +struct renesas_usbhs_driver_callback { + int (*notify_hotplug)(struct platform_device *pdev); +}; + +/* + * callback functions for platform + * + * These functions are called from driver for platform + */ +struct renesas_usbhs_platform_callback { + + /* + * option: + * + * Hardware init function for platform. + * it is called when driver was probed. + */ + int (*hardware_init)(struct platform_device *pdev); + + /* + * option: + * + * Hardware exit function for platform. + * it is called when driver was removed + */ + void (*hardware_exit)(struct platform_device *pdev); + + /* + * option: + * + * Phy reset for platform + */ + void (*phy_reset)(struct platform_device *pdev); + + /* + * get USB ID function + * - USBHS_HOST + * - USBHS_GADGET + */ + int (*get_id)(struct platform_device *pdev); + + /* + * get VBUS status function. + */ + int (*get_vbus)(struct platform_device *pdev); +}; + +/* + * parameters for renesas usbhs + * + * some register needs USB chip specific parameters. + * This struct show it to driver + */ +struct renesas_usbhs_driver_param { + /* + * pipe settings + */ + u32 *pipe_type; /* array of USB_ENDPOINT_XFER_xxx (from ep0) */ + int pipe_size; /* pipe_type array size */ + + /* + * option: + * + * for BUSWAIT :: BWAIT + * */ + int buswait_bwait; +}; + +/* + * option: + * + * platform information for renesas_usbhs driver. + */ +struct renesas_usbhs_platform_info { + /* + * option: + * + * platform set these functions before + * call platform_add_devices if needed + */ + struct renesas_usbhs_platform_callback platform_callback; + + /* + * driver set these callback functions pointer. + * platform can use it on callback functions + */ + struct renesas_usbhs_driver_callback driver_callback; + + /* + * option: + * + * driver use these param for some register + */ + struct renesas_usbhs_driver_param driver_param; +}; + +/* + * macro for platform + */ +#define renesas_usbhs_get_info(pdev)\ + ((struct renesas_usbhs_platform_info *)(pdev)->dev.platform_data) + +#define renesas_usbhs_call_notify_hotplug(pdev) \ + ({ \ + struct renesas_usbhs_driver_callback *dc; \ + dc = &(renesas_usbhs_get_info(pdev)->driver_callback); \ + if (dc) \ + dc->notify_hotplug(pdev); \ + }) +#endif /* RENESAS_USB_H */ -- cgit v1.2.1 From 3ab810f19d71f4083be44b41770bcd784ff82e51 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 1 Apr 2011 11:24:30 -0700 Subject: usb gadget: fix all Section mismatch warnings Fix 41 occurrences of this type of Section mismatch warning in g_mass_storage, g_serial, g_cdc, g_multi, g_nokia, g_ether, g_ffs: (the 75 number reported earlier contained some duplicates.) WARNING: drivers/usb/gadget/g_mass_storage.o(.text+0x687a): Section mismatch in reference from the function fsg_bind() to the function .devinit.text:usb_ep_autoconfig() The function fsg_bind() references the function __devinit usb_ep_autoconfig(). This is often because fsg_bind lacks a __devinit annotation or the annotation of usb_ep_autoconfig is wrong. Also remove __devinit from usb_ep_autoconfig_reset() to prevent possible section mismatch problems with it. Signed-off-by: Randy Dunlap Cc: Alan Stern Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/gadget.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index e538172c0f64..dd1571db55e7 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -890,8 +890,8 @@ static inline void usb_free_descriptors(struct usb_descriptor_header **v) /* utility wrapping a simple endpoint selection policy */ extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *, - struct usb_endpoint_descriptor *) __devinit; + struct usb_endpoint_descriptor *); -extern void usb_ep_autoconfig_reset(struct usb_gadget *) __devinit; +extern void usb_ep_autoconfig_reset(struct usb_gadget *); #endif /* __LINUX_USB_GADGET_H */ -- cgit v1.2.1 From af32fe511374f17feb137d7fbfe2f4c73a8f531c Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 21 Apr 2011 14:10:16 +0900 Subject: usb: renesas_usbhs: remove callback when module removed. The callback function which is called from platform must be removed if module removed. Signed-off-by: Kuninori Morimoto Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/renesas_usbhs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h index 565bca3aa440..66bbdd12d153 100644 --- a/include/linux/usb/renesas_usbhs.h +++ b/include/linux/usb/renesas_usbhs.h @@ -143,7 +143,7 @@ struct renesas_usbhs_platform_info { ({ \ struct renesas_usbhs_driver_callback *dc; \ dc = &(renesas_usbhs_get_info(pdev)->driver_callback); \ - if (dc) \ + if (dc && dc->notify_hotplug) \ dc->notify_hotplug(pdev); \ }) #endif /* RENESAS_USB_H */ -- cgit v1.2.1 From bc57381e634782009b1cb2e86b18013699ada576 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 28 Apr 2011 16:41:14 +0900 Subject: usb: renesas_usbhs: use delayed_work instead of work_struct This delay is used to overjump debounce. And, this patch also move usbhsc_drvcllbck_notify_hotplug to global, because it will be called from other files. Signed-off-by: Kuninori Morimoto Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/renesas_usbhs.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux/usb') diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h index 66bbdd12d153..3a7f1d982dd6 100644 --- a/include/linux/usb/renesas_usbhs.h +++ b/include/linux/usb/renesas_usbhs.h @@ -103,6 +103,13 @@ struct renesas_usbhs_driver_param { * for BUSWAIT :: BWAIT * */ int buswait_bwait; + + /* + * option: + * + * delay time from notify_hotplug callback + */ + int detection_delay; }; /* -- cgit v1.2.1 From 3dacdf11f1f82b98d301d5e1d42cdaea9a39968a Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Fri, 15 Apr 2011 16:18:38 +0200 Subject: usb: factor out state_string() on otg drivers Provide common otg_state_string() and use it in drivers. Signed-off-by: Anatolij Gustschin Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/otg.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/usb') diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index 6e40718f5abe..bc84858b3a4d 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -246,5 +246,6 @@ otg_unregister_notifier(struct otg_transceiver *otg, struct notifier_block *nb) /* for OTG controller drivers (and maybe other stuff) */ extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num); +extern const char *otg_state_string(enum usb_otg_state state); #endif /* __LINUX_USB_OTG_H */ -- cgit v1.2.1 From 64b3c304bed25388fed48dbdc098dfcad7063d9c Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Mon, 11 Apr 2011 20:19:12 +0200 Subject: usb/ch9: use proper endianess for wBytesPerInterval while going through Tatyana's changes for the gadget framework I noticed that this type is not defined as __le16. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Sarah Sharp --- include/linux/usb/ch9.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h index b72f305ce6bd..0fd3fbdd8283 100644 --- a/include/linux/usb/ch9.h +++ b/include/linux/usb/ch9.h @@ -579,7 +579,7 @@ struct usb_ss_ep_comp_descriptor { __u8 bMaxBurst; __u8 bmAttributes; - __u16 wBytesPerInterval; + __le16 wBytesPerInterval; } __attribute__ ((packed)); #define USB_DT_SS_EP_COMP_SIZE 6 -- cgit v1.2.1 From 139540170d9d9b7ead3caaf540f161756b356d56 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Wed, 27 Apr 2011 21:07:28 +0530 Subject: USB: ehci: remove structure packing from ehci_def As pointed out by Arnd Bergmann, in include/linux/usb/ehci_def.h, struct ehci_caps is defined with __attribute__((packed)) for no good reason, and this triggers undefined behaviour when using ARM's readl() on pointers to elements of this structure: http://lkml.kernel.org/r/201102021700.20683.arnd@arndb.de The same problem exists with the other two structures in ehci_def.h too, so remove the __attribute__((packed)) from all of them. Cc: Arnd Bergmann Signed-off-by: Rabin Vincent Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/ehci_def.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h index e49dfd45baa4..78799432008e 100644 --- a/include/linux/usb/ehci_def.h +++ b/include/linux/usb/ehci_def.h @@ -52,7 +52,7 @@ struct ehci_caps { #define HCC_PGM_FRAMELISTLEN(p) ((p)&(1 << 1)) /* true: periodic_size changes*/ #define HCC_64BIT_ADDR(p) ((p)&(1)) /* true: can use 64-bit addr */ u8 portroute[8]; /* nibbles for routing - offset 0xC */ -} __attribute__ ((packed)); +}; /* Section 2.3 Host Controller Operational Registers */ @@ -150,7 +150,7 @@ struct ehci_regs { #define PORT_CSC (1<<1) /* connect status change */ #define PORT_CONNECT (1<<0) /* device connected */ #define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC) -} __attribute__ ((packed)); +}; #define USBMODE 0x68 /* USB Device mode */ #define USBMODE_SDIS (1<<3) /* Stream disable */ @@ -194,7 +194,7 @@ struct ehci_dbg_port { u32 data47; u32 address; #define DBGP_EPADDR(dev, ep) (((dev)<<8)|(ep)) -} __attribute__ ((packed)); +}; #ifdef CONFIG_EARLY_PRINTK_DBGP #include -- cgit v1.2.1 From c430131a02d677aa708f56342c1565edfdacb3c0 Mon Sep 17 00:00:00 2001 From: Jan Andersson Date: Tue, 3 May 2011 20:11:57 +0200 Subject: USB: EHCI: Support controllers with big endian capability regs The two first HC capability registers (CAPLENGTH and HCIVERSION) are defined as one 8-bit and one 16-bit register. Most HC implementations have selected to treat these registers as part of a 32-bit register, giving the same layout for both big and small endian systems. This patch adds a new quirk, big_endian_capbase, to support controllers with big endian register interfaces that treat HCIVERSION and CAPLENGTH as individual registers. Signed-off-by: Jan Andersson Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/ehci_def.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h index 78799432008e..7cc95ee3606b 100644 --- a/include/linux/usb/ehci_def.h +++ b/include/linux/usb/ehci_def.h @@ -25,10 +25,15 @@ struct ehci_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(p) (((p)>>00)&0x00ff) /* bits 7:0 */ -#define HC_VERSION(p) (((p)>>16)&0xffff) /* bits 31:16 */ +#define HC_LENGTH(ehci, p) (0x00ff&((p) >> /* bits 7:0 / offset 00h */ \ + (ehci_big_endian_capbase(ehci) ? 24 : 0))) +#define HC_VERSION(ehci, p) (0xffff&((p) >> /* bits 31:16 / offset 02h */ \ + (ehci_big_endian_capbase(ehci) ? 0 : 16))) u32 hcs_params; /* HCSPARAMS - offset 0x4 */ #define HCS_DEBUG_PORT(p) (((p)>>20)&0xf) /* bits 23:20, debug port? */ #define HCS_INDICATOR(p) ((p)&(1 << 16)) /* true: has port indicators */ -- cgit v1.2.1 From 3df004532582d0cc721da0df28311bcedd639724 Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Thu, 5 May 2011 12:11:21 +0200 Subject: usb: fix building musb drivers Commit 3dacdf11 "usb: factor out state_string() on otg drivers" broke building musb drivers since there is already another otg_state_string() function in musb drivers, but with different prototype. Fix musb drivers to use common otg_state_string(), too. Also provide a nop for otg_state_string() if CONFIG_USB_OTG_UTILS is not defined. Signed-off-by: Anatolij Gustschin Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/otg.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index bc84858b3a4d..d87f44f5b04e 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -168,6 +168,7 @@ otg_shutdown(struct otg_transceiver *otg) #ifdef CONFIG_USB_OTG_UTILS extern struct otg_transceiver *otg_get_transceiver(void); extern void otg_put_transceiver(struct otg_transceiver *); +extern const char *otg_state_string(enum usb_otg_state state); #else static inline struct otg_transceiver *otg_get_transceiver(void) { @@ -177,6 +178,11 @@ static inline struct otg_transceiver *otg_get_transceiver(void) static inline void otg_put_transceiver(struct otg_transceiver *x) { } + +static inline const char *otg_state_string(enum usb_otg_state state) +{ + return NULL; +} #endif /* Context: can sleep */ @@ -246,6 +252,5 @@ otg_unregister_notifier(struct otg_transceiver *otg, struct notifier_block *nb) /* for OTG controller drivers (and maybe other stuff) */ extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num); -extern const char *otg_state_string(enum usb_otg_state state); #endif /* __LINUX_USB_OTG_H */ -- cgit v1.2.1 From 0f73cac8e41723d600c91a0f5b481dc3202f4f82 Mon Sep 17 00:00:00 2001 From: Anji jonnala Date: Wed, 4 May 2011 10:19:46 +0530 Subject: USB: OTG: msm: vote for dayatona fabric clock HSUSB core clock is derived from daytona fabric clock and for HSUSB operational require minimum core clock at 55MHz. Since, HSUSB cannot tolerate daytona fabric clock change in the middle of HSUSB operational, vote for maximum Daytona fabric clock while usb is operational Signed-off-by: Anji jonnala Signed-off-by: Pavankumar Kondeti Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/msm_hsusb.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h index 3657403eac18..31ef1853f93c 100644 --- a/include/linux/usb/msm_hsusb.h +++ b/include/linux/usb/msm_hsusb.h @@ -64,7 +64,8 @@ enum otg_control_type { * @otg_control: OTG switch controlled by user/Id pin * @default_mode: Default operational mode. Applicable only if * OTG switch is controller by user. - * + * @pclk_src_name: pclk is derived from ebi1_usb_clk in case of 7x27 and 8k + * dfab_usb_hs_clk in case of 8660 and 8960. */ struct msm_otg_platform_data { int *phy_init_seq; @@ -74,6 +75,7 @@ struct msm_otg_platform_data { enum otg_control_type otg_control; enum usb_mode_type default_mode; void (*setup_gpio)(enum usb_otg_state state); + char *pclk_src_name; }; /** @@ -83,6 +85,7 @@ struct msm_otg_platform_data { * @irq: IRQ number assigned for HSUSB controller. * @clk: clock struct of usb_hs_clk. * @pclk: clock struct of usb_hs_pclk. + * @pclk_src: pclk source for voting. * @phy_reset_clk: clock struct of usb_phy_clk. * @core_clk: clock struct of usb_hs_core_clk. * @regs: ioremapped register base address. @@ -90,7 +93,6 @@ struct msm_otg_platform_data { * @sm_work: OTG state machine work. * @in_lpm: indicates low power mode (LPM) state. * @async_int: Async interrupt arrived. - * */ struct msm_otg { struct otg_transceiver otg; @@ -98,6 +100,7 @@ struct msm_otg { int irq; struct clk *clk; struct clk *pclk; + struct clk *pclk_src; struct clk *phy_reset_clk; struct clk *core_clk; void __iomem *regs; -- cgit v1.2.1 From d860852e087eed7eadbea64f1a8db9a231c5e9b3 Mon Sep 17 00:00:00 2001 From: Pavankumar Kondeti Date: Wed, 4 May 2011 10:19:47 +0530 Subject: USB: OTG: msm: Implement charger detection Implement good battery algorithm defined in the battery charging V1.2 spec for detecting different charging ports. USB hardware is put into low power mode when connected to a dedicated charging port. vbus_draw and set_power methods are implemented for determining the allowed current from Host in different states (un-configured/suspend/configured). The charger block is implemented using vendor specific registers and the PHY used in MSM8960(28nm PHY) different from older targets like MSM8x60 and MSM7x30(45nm PHY). The PHY vendor and product id registers are not implemented in the above chipsets. Hence PHY type is passed via platform data. Signed-off-by: Pavankumar Kondeti Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/msm_hsusb.h | 72 ++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 71 insertions(+), 1 deletion(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h index 31ef1853f93c..00311fe9d0df 100644 --- a/include/linux/usb/msm_hsusb.h +++ b/include/linux/usb/msm_hsusb.h @@ -2,7 +2,7 @@ * * Copyright (C) 2008 Google, Inc. * Author: Brian Swetland - * Copyright (c) 2009-2010, Code Aurora Forum. All rights reserved. + * Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and @@ -53,6 +53,64 @@ enum otg_control_type { OTG_USER_CONTROL, }; +/** + * PHY used in + * + * INVALID_PHY Unsupported PHY + * CI_45NM_INTEGRATED_PHY Chipidea 45nm integrated PHY + * SNPS_28NM_INTEGRATED_PHY Synopsis 28nm integrated PHY + * + */ +enum msm_usb_phy_type { + INVALID_PHY = 0, + CI_45NM_INTEGRATED_PHY, + SNPS_28NM_INTEGRATED_PHY, +}; + +#define IDEV_CHG_MAX 1500 +#define IUNIT 100 + +/** + * Different states involved in USB charger detection. + * + * USB_CHG_STATE_UNDEFINED USB charger is not connected or detection + * process is not yet started. + * USB_CHG_STATE_WAIT_FOR_DCD Waiting for Data pins contact. + * USB_CHG_STATE_DCD_DONE Data pin contact is detected. + * USB_CHG_STATE_PRIMARY_DONE Primary detection is completed (Detects + * between SDP and DCP/CDP). + * USB_CHG_STATE_SECONDARY_DONE Secondary detection is completed (Detects + * between DCP and CDP). + * USB_CHG_STATE_DETECTED USB charger type is determined. + * + */ +enum usb_chg_state { + USB_CHG_STATE_UNDEFINED = 0, + USB_CHG_STATE_WAIT_FOR_DCD, + USB_CHG_STATE_DCD_DONE, + USB_CHG_STATE_PRIMARY_DONE, + USB_CHG_STATE_SECONDARY_DONE, + USB_CHG_STATE_DETECTED, +}; + +/** + * USB charger types + * + * USB_INVALID_CHARGER Invalid USB charger. + * USB_SDP_CHARGER Standard downstream port. Refers to a downstream port + * on USB2.0 compliant host/hub. + * USB_DCP_CHARGER Dedicated charger port (AC charger/ Wall charger). + * USB_CDP_CHARGER Charging downstream port. Enumeration can happen and + * IDEV_CHG_MAX can be drawn irrespective of USB state. + * + */ +enum usb_chg_type { + USB_INVALID_CHARGER = 0, + USB_SDP_CHARGER, + USB_DCP_CHARGER, + USB_CDP_CHARGER, +}; + /** * struct msm_otg_platform_data - platform device data * for msm_otg driver. @@ -74,6 +132,7 @@ struct msm_otg_platform_data { enum usb_mode_type mode; enum otg_control_type otg_control; enum usb_mode_type default_mode; + enum msm_usb_phy_type phy_type; void (*setup_gpio)(enum usb_otg_state state); char *pclk_src_name; }; @@ -93,6 +152,12 @@ struct msm_otg_platform_data { * @sm_work: OTG state machine work. * @in_lpm: indicates low power mode (LPM) state. * @async_int: Async interrupt arrived. + * @cur_power: The amount of mA available from downstream port. + * @chg_work: Charger detection work. + * @chg_state: The state of charger detection process. + * @chg_type: The type of charger attached. + * @dcd_retires: The retry count used to track Data contact + * detection process. */ struct msm_otg { struct otg_transceiver otg; @@ -110,6 +175,11 @@ struct msm_otg { struct work_struct sm_work; atomic_t in_lpm; int async_int; + unsigned cur_power; + struct delayed_work chg_work; + enum usb_chg_state chg_state; + enum usb_chg_type chg_type; + u8 dcd_retries; }; #endif -- cgit v1.2.1 From 04aebcbb1b6dccadc8862b2765265f65a946db57 Mon Sep 17 00:00:00 2001 From: Pavankumar Kondeti Date: Wed, 4 May 2011 10:19:49 +0530 Subject: USB: OTG: msm: Add PHY suspend support for MSM8960 Signed-off-by: Pavankumar Kondeti Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/msm_hsusb_hw.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/usb') diff --git a/include/linux/usb/msm_hsusb_hw.h b/include/linux/usb/msm_hsusb_hw.h index 7d1babbff071..6e97a2d3d39f 100644 --- a/include/linux/usb/msm_hsusb_hw.h +++ b/include/linux/usb/msm_hsusb_hw.h @@ -24,6 +24,7 @@ #define USB_PORTSC (MSM_USB_BASE + 0x0184) #define USB_OTGSC (MSM_USB_BASE + 0x01A4) #define USB_USBMODE (MSM_USB_BASE + 0x01A8) +#define USB_PHY_CTRL (MSM_USB_BASE + 0x0240) #define USBCMD_RESET 2 #define USB_USBINTR (MSM_USB_BASE + 0x0148) @@ -42,6 +43,7 @@ #define ASYNC_INTR_CTRL (1 << 29) /* Enable async interrupt */ #define ULPI_STP_CTRL (1 << 30) /* Block communication with PHY */ +#define PHY_RETEN (1 << 1) /* PHY retention enable/disable */ /* OTG definitions */ #define OTGSC_INTSTS_MASK (0x7f << 16) -- cgit v1.2.1 From 1b9ba000177ee47bcc5b44c7c34e48e735f5f9b1 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 9 May 2011 13:08:06 +0300 Subject: usb: gadget: composite: Allow function drivers to pause control transfers Some USB function drivers (e.g. f_mass_storage.c) need to delay or defer the data/status stages of standard control requests like SET_CONFIGURATION or SET_INTERFACE till they are done with their bookkeeping and are actually ready for accepting new commands to their interface. They can now achieve this functionality by returning USB_GADGET_DELAYED_STATUS in their setup handlers (e.g. set_alt()). The composite framework will then defer completion of the control transfer by not completing the data/status stages. This ensures that the host does not send new packets to the interface till the function driver is ready to take them. When the function driver that requested for USB_GADGET_DELAYED_STATUS is done with its bookkeeping, it should signal the composite framework to continue with the data/status stages of the control transfer. It can do so by invoking the new API usb_composite_setup_continue(). This is where the control transfer's data/status stages are completed and host can initiate new transfers. The DELAYED_STATUS mechanism is currently only supported if the expected data phase is 0 bytes (i.e. w_length == 0). Since SET_CONFIGURATION and SET_INTERFACE are the only cases that will use this mechanism, this is not a limitation. Signed-off-by: Roger Quadros Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/composite.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'include/linux/usb') diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 882a084a8411..b78cba466d3d 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -37,6 +37,14 @@ #include #include +/* + * USB function drivers should return USB_GADGET_DELAYED_STATUS if they + * wish to delay the data/status stages of the control transfer till they + * are ready. The control transfer will then be kept from completing till + * all the function drivers that requested for USB_GADGET_DELAYED_STAUS + * invoke usb_composite_setup_continue(). + */ +#define USB_GADGET_DELAYED_STATUS 0x7fff /* Impossibly large value */ struct usb_configuration; @@ -285,6 +293,7 @@ struct usb_composite_driver { extern int usb_composite_probe(struct usb_composite_driver *driver, int (*bind)(struct usb_composite_dev *cdev)); extern void usb_composite_unregister(struct usb_composite_driver *driver); +extern void usb_composite_setup_continue(struct usb_composite_dev *cdev); /** @@ -342,7 +351,12 @@ struct usb_composite_dev { */ unsigned deactivations; - /* protects at least deactivation count */ + /* the composite driver won't complete the control transfer's + * data/status stages till delayed_status is zero. + */ + int delayed_status; + + /* protects deactivations and delayed_status counts*/ spinlock_t lock; }; -- cgit v1.2.1