diff options
Diffstat (limited to 'drivers/usb/host')
79 files changed, 1488 insertions, 5231 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 40b5de597112..55bdfdf11e4c 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -38,9 +38,9 @@ config USB_XHCI_DBGCAP before enabling this option. If unsure, say 'N'. config USB_XHCI_PCI - tristate - depends on USB_PCI - default y + tristate + depends on USB_PCI + default y config USB_XHCI_PLATFORM tristate "Generic xHCI driver for a platform device" @@ -186,7 +186,7 @@ config USB_EHCI_FSL config USB_EHCI_MXC tristate "Support for Freescale i.MX on-chip EHCI USB controller" - depends on ARCH_MXC + depends on ARCH_MXC || COMPILE_TEST select USB_EHCI_ROOT_HUB_TT ---help--- Variation of ARC USB block used in some Freescale chips. @@ -210,8 +210,8 @@ config USB_EHCI_HCD_OMAP config USB_EHCI_HCD_ORION tristate "Support for Marvell EBU on-chip EHCI USB controller" - depends on USB_EHCI_HCD && (PLAT_ORION || ARCH_MVEBU) - default y + depends on USB_EHCI_HCD && (PLAT_ORION || ARCH_MVEBU || COMPILE_TEST) + default y if (PLAT_ORION || ARCH_MVEBU) ---help--- Enables support for the on-chip EHCI controller on Marvell's embedded ARM SoCs, including Orion, Kirkwood, Dove, Armada XP, @@ -220,16 +220,16 @@ config USB_EHCI_HCD_ORION Marvell PXA/MMP USB controller" for those. config USB_EHCI_HCD_SPEAR - tristate "Support for ST SPEAr on-chip EHCI USB controller" - depends on USB_EHCI_HCD && PLAT_SPEAR - default y - ---help--- - Enables support for the on-chip EHCI controller on - ST SPEAr chips. + tristate "Support for ST SPEAr on-chip EHCI USB controller" + depends on USB_EHCI_HCD && (PLAT_SPEAR || COMPILE_TEST) + default y if PLAT_SPEAR + ---help--- + Enables support for the on-chip EHCI controller on + ST SPEAr chips. config USB_EHCI_HCD_STI tristate "Support for ST STiHxxx on-chip EHCI USB controller" - depends on ARCH_STI && OF + depends on (ARCH_STI || COMPILE_TEST) && OF select GENERIC_PHY select USB_EHCI_HCD_PLATFORM help @@ -237,21 +237,21 @@ config USB_EHCI_HCD_STI STMicroelectronics consumer electronics SoC's. config USB_EHCI_HCD_AT91 - tristate "Support for Atmel on-chip EHCI USB controller" - depends on USB_EHCI_HCD && ARCH_AT91 - default y - ---help--- - Enables support for the on-chip EHCI controller on - Atmel chips. + tristate "Support for Atmel on-chip EHCI USB controller" + depends on USB_EHCI_HCD && (ARCH_AT91 || COMPILE_TEST) + default y if ARCH_AT91 + ---help--- + Enables support for the on-chip EHCI controller on + Atmel chips. config USB_EHCI_TEGRA - tristate "NVIDIA Tegra HCD support" - depends on ARCH_TEGRA - select USB_EHCI_ROOT_HUB_TT - select USB_TEGRA_PHY - help - This driver enables support for the internal USB Host Controllers - found in NVIDIA Tegra SoCs. The controllers are EHCI compliant. + tristate "NVIDIA Tegra HCD support" + depends on ARCH_TEGRA + select USB_EHCI_ROOT_HUB_TT + select USB_TEGRA_PHY + help + This driver enables support for the internal USB Host Controllers + found in NVIDIA Tegra SoCs. The controllers are EHCI compliant. config USB_EHCI_HCD_PPC_OF bool "EHCI support for PPC USB controller on OF platform bus" @@ -263,20 +263,20 @@ config USB_EHCI_HCD_PPC_OF config USB_EHCI_SH bool "EHCI support for SuperH USB controller" - depends on SUPERH + depends on SUPERH || COMPILE_TEST ---help--- Enables support for the on-chip EHCI controller on the SuperH. If you use the PCI EHCI controller, this option is not necessary. config USB_EHCI_EXYNOS - tristate "EHCI support for Samsung S5P/EXYNOS SoC Series" - depends on ARCH_S5PV210 || ARCH_EXYNOS - help - Enable support for the Samsung Exynos SOC's on-chip EHCI controller. + tristate "EHCI support for Samsung S5P/Exynos SoC Series" + depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST + help + Enable support for the Samsung Exynos SOC's on-chip EHCI controller. config USB_EHCI_MV tristate "EHCI support for Marvell PXA/MMP USB controller" - depends on (ARCH_PXA || ARCH_MMP) + depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST select USB_EHCI_ROOT_HUB_TT ---help--- Enables support for Marvell (including PXA and MMP series) on-chip @@ -287,15 +287,9 @@ config USB_EHCI_MV Dova, Armada 370 and Armada XP. See "Support for Marvell EBU on-chip EHCI USB controller" for those. -config USB_W90X900_EHCI - tristate "W90X900(W90P910) EHCI support" - depends on ARCH_W90X900 - ---help--- - Enables support for the W90X900 USB controller - config USB_CNS3XXX_EHCI bool "Cavium CNS3XXX EHCI Module (DEPRECATED)" - depends on ARCH_CNS3XXX + depends on ARCH_CNS3XXX || COMPILE_TEST select USB_EHCI_HCD_PLATFORM ---help--- This option is deprecated now and the driver was removed, use @@ -415,16 +409,16 @@ config USB_OHCI_HCD_OMAP1 Enables support for the OHCI controller on OMAP1/2 chips. config USB_OHCI_HCD_SPEAR - tristate "Support for ST SPEAr on-chip OHCI USB controller" - depends on USB_OHCI_HCD && PLAT_SPEAR - default y - ---help--- - Enables support for the on-chip OHCI controller on - ST SPEAr chips. + tristate "Support for ST SPEAr on-chip OHCI USB controller" + depends on USB_OHCI_HCD && (PLAT_SPEAR || COMPILE_TEST) + default y if PLAT_SPEAR + ---help--- + Enables support for the on-chip OHCI controller on + ST SPEAr chips. config USB_OHCI_HCD_STI tristate "Support for ST STiHxxx on-chip OHCI USB controller" - depends on ARCH_STI && OF + depends on (ARCH_STI || COMPILE_TEST) && OF select GENERIC_PHY select USB_OHCI_HCD_PLATFORM help @@ -432,21 +426,22 @@ config USB_OHCI_HCD_STI STMicroelectronics consumer electronics SoC's. config USB_OHCI_HCD_S3C2410 - tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series" - depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX) - default y - ---help--- - Enables support for the on-chip OHCI controller on - S3C24xx/S3C64xx chips. + tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series" + depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX || COMPILE_TEST) + default y if (ARCH_S3C24XX || ARCH_S3C64XX) + ---help--- + Enables support for the on-chip OHCI controller on + S3C24xx/S3C64xx chips. config USB_OHCI_HCD_LPC32XX tristate "Support for LPC on-chip OHCI USB controller" - depends on USB_OHCI_HCD && ARCH_LPC32XX + depends on USB_OHCI_HCD + depends on ARCH_LPC32XX || COMPILE_TEST depends on USB_ISP1301 default y ---help--- - Enables support for the on-chip OHCI controller on - NXP chips. + Enables support for the on-chip OHCI controller on + NXP chips. config USB_OHCI_HCD_PXA27X tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller" @@ -458,17 +453,17 @@ config USB_OHCI_HCD_PXA27X config USB_OHCI_HCD_AT91 tristate "Support for Atmel on-chip OHCI USB controller" - depends on USB_OHCI_HCD && ARCH_AT91 && OF - default y + depends on USB_OHCI_HCD && (ARCH_AT91 || COMPILE_TEST) && OF + default y if ARCH_AT91 ---help--- - Enables support for the on-chip OHCI controller on - Atmel chips. + Enables support for the on-chip OHCI controller on + Atmel chips. config USB_OHCI_HCD_OMAP3 tristate "OHCI support for OMAP3 and later chips" - depends on (ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5) + depends on ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5 || COMPILE_TEST select USB_OHCI_HCD_PLATFORM - default y + default y if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5 help This option is deprecated now and the driver was removed, use USB_OHCI_HCD_PLATFORM instead. @@ -478,10 +473,10 @@ config USB_OHCI_HCD_OMAP3 config USB_OHCI_HCD_DAVINCI tristate "OHCI support for TI DaVinci DA8xx" - depends on ARCH_DAVINCI_DA8XX + depends on ARCH_DAVINCI_DA8XX || COMPILE_TEST depends on USB_OHCI_HCD select PHY_DA8XX_USB - default y + default y if ARCH_DAVINCI_DA8XX help Enables support for the DaVinci DA8xx integrated OHCI controller. This driver cannot currently be a loadable @@ -537,7 +532,7 @@ config USB_OHCI_HCD_SSB config USB_OHCI_SH bool "OHCI support for SuperH USB controller (DEPRECATED)" - depends on SUPERH + depends on SUPERH || COMPILE_TEST select USB_OHCI_HCD_PLATFORM ---help--- This option is deprecated now and the driver was removed, use @@ -547,14 +542,14 @@ config USB_OHCI_SH If you use the PCI OHCI controller, this option is not necessary. config USB_OHCI_EXYNOS - tristate "OHCI support for Samsung S5P/EXYNOS SoC Series" - depends on ARCH_S5PV210 || ARCH_EXYNOS + tristate "OHCI support for Samsung S5P/Exynos SoC Series" + depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST help - Enable support for the Samsung Exynos SOC's on-chip OHCI controller. + Enable support for the Samsung Exynos SOC's on-chip OHCI controller. config USB_CNS3XXX_OHCI bool "Cavium CNS3XXX OHCI Module (DEPRECATED)" - depends on ARCH_CNS3XXX + depends on ARCH_CNS3XXX || COMPILE_TEST select USB_OHCI_HCD_PLATFORM ---help--- This option is deprecated now and the driver was removed, use @@ -614,8 +609,8 @@ config USB_UHCI_PLATFORM default y if (ARCH_VT8500 || ARCH_ASPEED) config USB_UHCI_ASPEED - bool - default y if ARCH_ASPEED + bool + default y if ARCH_ASPEED config USB_FHCI_HCD tristate "Freescale QE USB Host Controller support" @@ -717,41 +712,15 @@ config USB_RENESAS_USBHS_HCD To compile this driver as a module, choose M here: the module will be called renesas-usbhs. -config USB_WHCI_HCD - tristate "Wireless USB Host Controller Interface (WHCI) driver" - depends on USB_PCI && USB && UWB - select USB_WUSB - select UWB_WHCI - help - A driver for PCI-based Wireless USB Host Controllers that are - compliant with the WHCI specification. - - To compile this driver a module, choose M here: the module - will be called "whci-hcd". - -config USB_HWA_HCD - tristate "Host Wire Adapter (HWA) driver" - depends on USB && UWB - select USB_WUSB - select UWB_HWA +config USB_IMX21_HCD + tristate "i.MX21 HCD support" + depends on ARM && ARCH_MXC help - This driver enables you to connect Wireless USB devices to - your system using a Host Wire Adaptor USB dongle. This is an - UWB Radio Controller and WUSB Host Controller connected to - your machine via USB (specified in WUSB1.0). + This driver enables support for the on-chip USB host in the + i.MX21 processor. - To compile this driver a module, choose M here: the module - will be called "hwa-hc". - -config USB_IMX21_HCD - tristate "i.MX21 HCD support" - depends on ARM && ARCH_MXC - help - This driver enables support for the on-chip USB host in the - i.MX21 processor. - - To compile this driver as a module, choose M here: the - module will be called "imx21-hcd". + To compile this driver as a module, choose M here: the + module will be called "imx21-hcd". config USB_HCD_BCMA tristate "BCMA usb host driver" diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 84514f71ae44..b191361257cc 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -35,8 +35,6 @@ ifneq ($(CONFIG_DEBUG_FS),) xhci-hcd-y += xhci-debugfs.o endif -obj-$(CONFIG_USB_WHCI_HCD) += whci/ - obj-$(CONFIG_USB_PCI) += pci-quirks.o obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o @@ -51,7 +49,6 @@ obj-$(CONFIG_USB_EHCI_HCD_STI) += ehci-st.o obj-$(CONFIG_USB_EHCI_EXYNOS) += ehci-exynos.o obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o obj-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o -obj-$(CONFIG_USB_W90X900_EHCI) += ehci-w90x900.o obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o @@ -82,7 +79,6 @@ obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o -obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o obj-$(CONFIG_USB_FSL_USB2) += fsl-mph-dr-of.o obj-$(CONFIG_USB_EHCI_FSL) += fsl-mph-dr-of.o diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c index 2400a826397a..652fa29beb27 100644 --- a/drivers/usb/host/bcma-hcd.c +++ b/drivers/usb/host/bcma-hcd.c @@ -406,9 +406,12 @@ static int bcma_hcd_probe(struct bcma_device *core) return -ENOMEM; usb_dev->core = core; - if (core->dev.of_node) + if (core->dev.of_node) { usb_dev->gpio_desc = devm_gpiod_get(&core->dev, "vcc", GPIOD_OUT_HIGH); + if (IS_ERR(usb_dev->gpio_desc)) + return PTR_ERR(usb_dev->gpio_desc); + } switch (core->id.id) { case BCMA_CORE_USB20_HOST: diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 3ba140ceaf52..e893467d659c 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -100,9 +100,6 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq <= 0) { - dev_err(&pdev->dev, - "Found HC with no IRQ. Check %s setup!\n", - dev_name(&pdev->dev)); retval = -ENODEV; goto fail_create_hcd; } diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c index 3a29a1a8519c..a4e9abcbdc4f 100644 --- a/drivers/usb/host/ehci-exynos.c +++ b/drivers/usb/host/ehci-exynos.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * SAMSUNG EXYNOS USB HOST EHCI Controller + * Samsung Exynos USB HOST EHCI Controller * * Copyright (C) 2011 Samsung Electronics Co.Ltd * Author: Jingoo Han <jg1.han@samsung.com> @@ -21,7 +21,7 @@ #include "ehci.h" -#define DRIVER_DESC "EHCI EXYNOS driver" +#define DRIVER_DESC "EHCI Exynos driver" #define EHCI_INSNREG00(base) (base + 0x90) #define EHCI_INSNREG00_ENA_INCR16 (0x1 << 25) @@ -41,6 +41,7 @@ struct exynos_ehci_hcd { struct clk *clk; struct device_node *of_node; struct phy *phy[PHY_NUMBER]; + bool legacy_phy; }; #define to_exynos_ehci(hcd) (struct exynos_ehci_hcd *)(hcd_to_ehci(hcd)->priv) @@ -50,10 +51,22 @@ static int exynos_ehci_get_phy(struct device *dev, { struct device_node *child; struct phy *phy; - int phy_number; + int phy_number, num_phys; int ret; /* Get PHYs for the controller */ + num_phys = of_count_phandle_with_args(dev->of_node, "phys", + "#phy-cells"); + for (phy_number = 0; phy_number < num_phys; phy_number++) { + phy = devm_of_phy_get_by_index(dev, dev->of_node, phy_number); + if (IS_ERR(phy)) + return PTR_ERR(phy); + exynos_ehci->phy[phy_number] = phy; + } + if (num_phys > 0) + return 0; + + /* Get PHYs using legacy bindings */ for_each_available_child_of_node(dev->of_node, child) { ret = of_property_read_u32(child, "reg", &phy_number); if (ret) { @@ -84,6 +97,7 @@ static int exynos_ehci_get_phy(struct device *dev, } } + exynos_ehci->legacy_phy = true; return 0; } @@ -205,11 +219,12 @@ static int exynos_ehci_probe(struct platform_device *pdev) ehci->caps = hcd->regs; /* - * Workaround: reset of_node pointer to avoid conflict between Exynos - * EHCI port subnodes and generic USB device bindings + * Workaround: reset of_node pointer to avoid conflict between legacy + * Exynos EHCI port subnodes and generic USB device bindings */ exynos_ehci->of_node = pdev->dev.of_node; - pdev->dev.of_node = NULL; + if (exynos_ehci->legacy_phy) + pdev->dev.of_node = NULL; /* DMA burst Enable */ writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs)); diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index 656b8c08efc8..a2c3b4ec8a8b 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -30,7 +30,7 @@ static const struct hc_driver ehci_grlib_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 9da7e22848c9..cf2b7ae93b7e 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1193,7 +1193,7 @@ static const struct hc_driver ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 66ec1fdf9fe7..bd4f6ef534d9 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -11,6 +11,7 @@ #include <linux/clk.h> #include <linux/err.h> #include <linux/usb/otg.h> +#include <linux/usb/of.h> #include <linux/platform_data/mv_usb.h> #include <linux/io.h> @@ -67,6 +68,8 @@ static int mv_ehci_reset(struct usb_hcd *hcd) { struct device *dev = hcd->self.controller; struct ehci_hcd_mv *ehci_mv = hcd_to_ehci_hcd_mv(hcd); + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + u32 status; int retval; if (ehci_mv == NULL) { @@ -80,6 +83,14 @@ static int mv_ehci_reset(struct usb_hcd *hcd) if (retval) dev_err(dev, "ehci_setup failed %d\n", retval); + if (of_usb_get_phy_mode(dev->of_node) == USBPHY_INTERFACE_MODE_HSIC) { + status = ehci_readl(ehci, &ehci->regs->port_status[0]); + status |= PORT_TEST_FORCE; + ehci_writel(ehci, status, &ehci->regs->port_status[0]); + status &= ~PORT_TEST_FORCE; + ehci_writel(ehci, status, &ehci->regs->port_status[0]); + } + return retval; } @@ -116,7 +127,7 @@ static int mv_ehci_probe(struct platform_device *pdev) ehci_mv->set_vbus = pdata->set_vbus; } - ehci_mv->phy = devm_phy_get(&pdev->dev, "usb"); + ehci_mv->phy = devm_phy_optional_get(&pdev->dev, "usb"); if (IS_ERR(ehci_mv->phy)) { retval = PTR_ERR(ehci_mv->phy); if (retval != -EPROBE_DEFER) @@ -164,7 +175,7 @@ static int mv_ehci_probe(struct platform_device *pdev) } ehci = hcd_to_ehci(hcd); - ehci->caps = (struct ehci_caps *) ehci_mv->cap_regs; + ehci->caps = (struct ehci_caps __iomem *) ehci_mv->cap_regs; if (ehci_mv->mode == MV_USB_MODE_OTG) { ehci_mv->otg = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); @@ -246,10 +257,8 @@ static int mv_ehci_remove(struct platform_device *pdev) MODULE_ALIAS("mv-ehci"); static const struct platform_device_id ehci_id_table[] = { - {"pxa-u2oehci", PXA_U2OEHCI}, - {"pxa-sph", PXA_SPH}, - {"mmp3-hsic", MMP3_HSIC}, - {"mmp3-fsic", MMP3_FSIC}, + {"pxa-u2oehci", 0}, + {"pxa-sph", 0}, {}, }; diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 7d20296cbe9f..fc125b3d06e7 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -115,10 +115,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) } irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(dev, "EHCI irq failed: %d\n", irq); + if (irq < 0) return irq; - } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); regs = devm_ioremap_resource(dev, res); diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 790acf3633e8..a319b1df3011 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -223,9 +223,6 @@ static int ehci_orion_drv_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq <= 0) { - dev_err(&pdev->dev, - "Found HC with no IRQ. Check %s setup!\n", - dev_name(&pdev->dev)); err = -ENODEV; goto err; } diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 4c306fb6b069..769749ca5961 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -145,10 +145,8 @@ static int ehci_platform_probe(struct platform_device *dev) } irq = platform_get_irq(dev, 0); - if (irq < 0) { - dev_err(&dev->dev, "no irq provided"); + if (irq < 0) return irq; - } hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev, dev_name(&dev->dev)); diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c index 46e160370d6e..2d462fbbe0a6 100644 --- a/drivers/usb/host/ehci-pmcmsp.c +++ b/drivers/usb/host/ehci-pmcmsp.c @@ -107,7 +107,7 @@ static int usb_hcd_msp_map_regs(struct mspusb_device *dev) if (!request_mem_region(res->start, res_len, "mab regs")) return -EBUSY; - dev->mab_regs = ioremap_nocache(res->start, res_len); + dev->mab_regs = ioremap(res->start, res_len); if (dev->mab_regs == NULL) { retval = -ENOMEM; goto err1; @@ -124,7 +124,7 @@ static int usb_hcd_msp_map_regs(struct mspusb_device *dev) retval = -EBUSY; goto err2; } - dev->usbid_regs = ioremap_nocache(res->start, res_len); + dev->usbid_regs = ioremap(res->start, res_len); if (dev->usbid_regs == NULL) { retval = -ENOMEM; goto err3; @@ -178,7 +178,7 @@ int usb_hcd_msp_probe(const struct hc_driver *driver, retval = -EBUSY; goto err1; } - hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); if (!hcd->regs) { pr_debug("ioremap failed"); retval = -ENOMEM; @@ -250,7 +250,7 @@ static const struct hc_driver ehci_msp_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_DMA | 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 576f7d79ad4e..6bbaee74f7e7 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -31,7 +31,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 454d8c624a3f..fb52133c3557 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -59,7 +59,7 @@ 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 | HCD_BH, + .flags = HCD_MEMORY | HCD_DMA | 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 aa2f77f1506d..8a5c9b3ebe1e 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -27,6 +27,10 @@ /*-------------------------------------------------------------------------*/ +/* PID Codes that are used here, from EHCI specification, Table 3-16. */ +#define PID_CODE_IN 1 +#define PID_CODE_SETUP 2 + /* fill a qtd, returning how much of the buffer we were able to queue up */ static int @@ -190,7 +194,7 @@ static int qtd_copy_status ( int status = -EINPROGRESS; /* count IN/OUT bytes, not SETUP (even short packets) */ - if (likely (QTD_PID (token) != 2)) + if (likely(QTD_PID(token) != PID_CODE_SETUP)) urb->actual_length += length - QTD_LENGTH (token); /* don't modify error codes */ @@ -206,6 +210,13 @@ static int qtd_copy_status ( if (token & QTD_STS_BABBLE) { /* FIXME "must" disable babbling device's port too */ status = -EOVERFLOW; + /* + * When MMF is active and PID Code is IN, queue is halted. + * EHCI Specification, Table 4-13. + */ + } else if ((token & QTD_STS_MMF) && + (QTD_PID(token) == PID_CODE_IN)) { + status = -EPROTO; /* CERR nonzero + halt --> stall */ } else if (QTD_CERR(token)) { status = -EPIPE; diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c index a9ee767952c1..c25c51d26f26 100644 --- a/drivers/usb/host/ehci-sh.c +++ b/drivers/usb/host/ehci-sh.c @@ -8,7 +8,6 @@ */ #include <linux/platform_device.h> #include <linux/clk.h> -#include <linux/platform_data/ehci-sh.h> struct ehci_sh_priv { struct clk *iclk, *fclk; @@ -33,7 +32,7 @@ static const struct hc_driver ehci_sh_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, + .flags = HCD_USB2 | HCD_DMA | HCD_MEMORY | HCD_BH, /* * basic lifecycle operations @@ -76,7 +75,6 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev) { struct resource *res; struct ehci_sh_priv *priv; - struct ehci_sh_platdata *pdata; struct usb_hcd *hcd; int irq, ret; @@ -85,15 +83,10 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq <= 0) { - dev_err(&pdev->dev, - "Found HC with no IRQ. Check %s setup!\n", - dev_name(&pdev->dev)); ret = -ENODEV; goto fail_create_hcd; } - pdata = dev_get_platdata(&pdev->dev); - /* initialize hcd */ hcd = usb_create_hcd(&ehci_sh_hc_driver, &pdev->dev, dev_name(&pdev->dev)); @@ -130,9 +123,6 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev) clk_enable(priv->fclk); clk_enable(priv->iclk); - if (pdata && pdata->phy_init) - pdata->phy_init(); - ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret != 0) { dev_err(&pdev->dev, "Failed to add hcd"); diff --git a/drivers/usb/host/ehci-st.c b/drivers/usb/host/ehci-st.c index ccb4e611001d..f74433aac948 100644 --- a/drivers/usb/host/ehci-st.c +++ b/drivers/usb/host/ehci-st.c @@ -158,10 +158,8 @@ static int st_ehci_platform_probe(struct platform_device *dev) return -ENODEV; irq = platform_get_irq(dev, 0); - if (irq < 0) { - dev_err(&dev->dev, "no irq provided"); + if (irq < 0) return irq; - } res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!res_mem) { dev_err(&dev->dev, "no memory resource provided"); diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 4d2cdec4cb78..d6433f206c17 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -42,12 +42,10 @@ struct tegra_ehci_soc_config { }; struct tegra_ehci_hcd { - struct tegra_usb_phy *phy; struct clk *clk; struct reset_control *rst; int port_resuming; bool needs_double_reset; - enum tegra_usb_phy_port_speed port_speed; }; static int tegra_reset_usb_controller(struct platform_device *pdev) @@ -480,12 +478,6 @@ static int tegra_ehci_probe(struct platform_device *pdev) } u_phy->otg->host = hcd_to_bus(hcd); - err = usb_phy_set_suspend(hcd->usb_phy, 0); - if (err) { - dev_err(&pdev->dev, "Failed to power on the phy\n"); - goto cleanup_phy; - } - irq = platform_get_irq(pdev, 0); if (!irq) { dev_err(&pdev->dev, "Failed to get IRQ\n"); @@ -521,16 +513,10 @@ static int tegra_ehci_remove(struct platform_device *pdev) struct tegra_ehci_hcd *tegra = (struct tegra_ehci_hcd *)hcd_to_ehci(hcd)->priv; + usb_remove_hcd(hcd); otg_set_host(hcd->usb_phy->otg, NULL); - usb_phy_shutdown(hcd->usb_phy); - usb_remove_hcd(hcd); - - reset_control_assert(tegra->rst); - udelay(1); - clk_disable_unprepare(tegra->clk); - usb_put_hcd(hcd); return 0; diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c deleted file mode 100644 index 6d77ace1697b..000000000000 --- a/drivers/usb/host/ehci-w90x900.c +++ /dev/null @@ -1,130 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/driver/usb/host/ehci-w90x900.c - * - * Copyright (c) 2008 Nuvoton technology corporation. - * - * Wan ZongShun <mcuos.com@gmail.com> - */ - -#include <linux/dma-mapping.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/usb.h> -#include <linux/usb/hcd.h> - -#include "ehci.h" - -/* enable phy0 and phy1 for w90p910 */ -#define ENPHY (0x01<<8) -#define PHY0_CTR (0xA4) -#define PHY1_CTR (0xA8) - -#define DRIVER_DESC "EHCI w90x900 driver" - -static const char hcd_name[] = "ehci-w90x900 "; - -static struct hc_driver __read_mostly ehci_w90x900_hc_driver; - -static int ehci_w90x900_probe(struct platform_device *pdev) -{ - struct usb_hcd *hcd; - struct ehci_hcd *ehci; - struct resource *res; - int retval = 0, irq; - unsigned long val; - - hcd = usb_create_hcd(&ehci_w90x900_hc_driver, - &pdev->dev, "w90x900 EHCI"); - if (!hcd) { - retval = -ENOMEM; - goto err1; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hcd->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(hcd->regs)) { - retval = PTR_ERR(hcd->regs); - goto err2; - } - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); - - ehci = hcd_to_ehci(hcd); - ehci->caps = hcd->regs; - ehci->regs = hcd->regs + - HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); - - /* enable PHY 0,1,the regs only apply to w90p910 - * 0xA4,0xA8 were offsets of PHY0 and PHY1 controller of - * w90p910 IC relative to ehci->regs. - */ - val = __raw_readl(ehci->regs+PHY0_CTR); - val |= ENPHY; - __raw_writel(val, ehci->regs+PHY0_CTR); - - val = __raw_readl(ehci->regs+PHY1_CTR); - val |= ENPHY; - __raw_writel(val, ehci->regs+PHY1_CTR); - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - retval = irq; - goto err2; - } - - retval = usb_add_hcd(hcd, irq, IRQF_SHARED); - if (retval != 0) - goto err2; - - device_wakeup_enable(hcd->self.controller); - return retval; -err2: - usb_put_hcd(hcd); -err1: - return retval; -} - -static int ehci_w90x900_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - usb_remove_hcd(hcd); - usb_put_hcd(hcd); - - return 0; -} - -static struct platform_driver ehci_hcd_w90x900_driver = { - .probe = ehci_w90x900_probe, - .remove = ehci_w90x900_remove, - .driver = { - .name = "w90x900-ehci", - }, -}; - -static int __init ehci_w90X900_init(void) -{ - if (usb_disabled()) - return -ENODEV; - - pr_info("%s: " DRIVER_DESC "\n", hcd_name); - - ehci_init_driver(&ehci_w90x900_hc_driver, NULL); - return platform_driver_register(&ehci_hcd_w90x900_driver); -} -module_init(ehci_w90X900_init); - -static void __exit ehci_w90X900_cleanup(void) -{ - platform_driver_unregister(&ehci_hcd_w90x900_driver); -} -module_exit(ehci_w90X900_cleanup); - -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>"); -MODULE_ALIAS("platform:w90p910-ehci"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index d2a27578e440..67a6ee8cb5d8 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -66,7 +66,7 @@ static const struct hc_driver ehci_xilinx_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c index 48fe9e6c2465..04733876c9c6 100644 --- a/drivers/usb/host/fhci-hcd.c +++ b/drivers/usb/host/fhci-hcd.c @@ -538,7 +538,7 @@ static const struct hc_driver fhci_driver = { /* generic hardware linkage */ .irq = fhci_irq, - .flags = HCD_USB11 | HCD_MEMORY, + .flags = HCD_DMA | HCD_USB11 | HCD_MEMORY, /* basic lifecycle operation */ .start = fhci_start, diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 0dbfa5c10703..f967adf2d8df 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -5508,7 +5508,7 @@ static const struct hc_driver fotg210_fotg210_hc_driver = { * generic hardware linkage */ .irq = fotg210_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB2, /* * basic lifecycle operations @@ -5646,8 +5646,10 @@ static int fotg210_hcd_probe(struct platform_device *pdev) return retval; failed_dis_clk: - if (!IS_ERR(fotg210->pclk)) + if (!IS_ERR(fotg210->pclk)) { clk_disable_unprepare(fotg210->pclk); + clk_put(fotg210->pclk); + } failed_put_hcd: usb_put_hcd(hcd); fail_create_hcd: @@ -5665,8 +5667,10 @@ static int fotg210_hcd_remove(struct platform_device *pdev) struct usb_hcd *hcd = platform_get_drvdata(pdev); struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd); - if (!IS_ERR(fotg210->pclk)) + if (!IS_ERR(fotg210->pclk)) { clk_disable_unprepare(fotg210->pclk); + clk_put(fotg210->pclk); + } usb_remove_hcd(hcd); usb_put_hcd(hcd); diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c deleted file mode 100644 index 6968b9f2b76b..000000000000 --- a/drivers/usb/host/hwa-hc.c +++ /dev/null @@ -1,875 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Host Wire Adapter: - * Driver glue, HWA-specific functions, bridges to WAHC and WUSBHC - * - * Copyright (C) 2005-2006 Intel Corporation - * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> - * - * The HWA driver is a simple layer that forwards requests to the WAHC - * (Wire Adater Host Controller) or WUSBHC (Wireless USB Host - * Controller) layers. - * - * Host Wire Adapter is the 'WUSB 1.0 standard' name for Wireless-USB - * Host Controller that is connected to your system via USB (a USB - * dongle that implements a USB host...). There is also a Device Wired - * Adaptor, DWA (Wireless USB hub) that uses the same mechanism for - * transferring data (it is after all a USB host connected via - * Wireless USB), we have a common layer called Wire Adapter Host - * Controller that does all the hard work. The WUSBHC (Wireless USB - * Host Controller) is the part common to WUSB Host Controllers, the - * HWA and the PCI-based one, that is implemented following the WHCI - * spec. All these layers are implemented in ../wusbcore. - * - * The main functions are hwahc_op_urb_{en,de}queue(), that pass the - * job of converting a URB to a Wire Adapter - * - * Entry points: - * - * hwahc_driver_*() Driver initialization, registration and - * teardown. - * - * hwahc_probe() New device came up, create an instance for - * it [from device enumeration]. - * - * hwahc_disconnect() Remove device instance [from device - * enumeration]. - * - * [__]hwahc_op_*() Host-Wire-Adaptor specific functions for - * starting/stopping/etc (some might be made also - * DWA). - */ -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/workqueue.h> -#include <linux/wait.h> -#include <linux/completion.h> -#include "../wusbcore/wa-hc.h" -#include "../wusbcore/wusbhc.h" - -struct hwahc { - struct wusbhc wusbhc; /* has to be 1st */ - struct wahc wa; -}; - -/* - * FIXME should be wusbhc - * - * NOTE: we need to cache the Cluster ID because later...there is no - * way to get it :) - */ -static int __hwahc_set_cluster_id(struct hwahc *hwahc, u8 cluster_id) -{ - int result; - struct wusbhc *wusbhc = &hwahc->wusbhc; - struct wahc *wa = &hwahc->wa; - struct device *dev = &wa->usb_iface->dev; - - result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - WUSB_REQ_SET_CLUSTER_ID, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - cluster_id, - wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - NULL, 0, USB_CTRL_SET_TIMEOUT); - if (result < 0) - dev_err(dev, "Cannot set WUSB Cluster ID to 0x%02x: %d\n", - cluster_id, result); - else - wusbhc->cluster_id = cluster_id; - dev_info(dev, "Wireless USB Cluster ID set to 0x%02x\n", cluster_id); - return result; -} - -static int __hwahc_op_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) -{ - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - - return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - WUSB_REQ_SET_NUM_DNTS, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - interval << 8 | slots, - wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - NULL, 0, USB_CTRL_SET_TIMEOUT); -} - -/* - * Reset a WUSB host controller and wait for it to complete doing it. - * - * @usb_hcd: Pointer to WUSB Host Controller instance. - * - */ -static int hwahc_op_reset(struct usb_hcd *usb_hcd) -{ - int result; - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct device *dev = &hwahc->wa.usb_iface->dev; - - mutex_lock(&wusbhc->mutex); - wa_nep_disarm(&hwahc->wa); - result = __wa_set_feature(&hwahc->wa, WA_RESET); - if (result < 0) { - dev_err(dev, "error commanding HC to reset: %d\n", result); - goto error_unlock; - } - result = __wa_wait_status(&hwahc->wa, WA_STATUS_RESETTING, 0); - if (result < 0) { - dev_err(dev, "error waiting for HC to reset: %d\n", result); - goto error_unlock; - } -error_unlock: - mutex_unlock(&wusbhc->mutex); - return result; -} - -/* - * FIXME: break this function up - */ -static int hwahc_op_start(struct usb_hcd *usb_hcd) -{ - u8 addr; - int result; - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - - result = -ENOSPC; - mutex_lock(&wusbhc->mutex); - addr = wusb_cluster_id_get(); - if (addr == 0) - goto error_cluster_id_get; - result = __hwahc_set_cluster_id(hwahc, addr); - if (result < 0) - goto error_set_cluster_id; - - 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); - return result; - -error_set_cluster_id: - wusb_cluster_id_put(addr); -error_cluster_id_get: - goto out; - -} - -/* - * No need to abort pipes, as when this is called, all the children - * has been disconnected and that has done it [through - * usb_disable_interface() -> usb_disable_endpoint() -> - * hwahc_op_ep_disable() - >rpipe_ep_disable()]. - */ -static void hwahc_op_stop(struct usb_hcd *usb_hcd) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - - mutex_lock(&wusbhc->mutex); - wusb_cluster_id_put(wusbhc->cluster_id); - mutex_unlock(&wusbhc->mutex); -} - -static int hwahc_op_get_frame_number(struct usb_hcd *usb_hcd) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - - /* - * We cannot query the HWA for the WUSB time since that requires sending - * a synchronous URB and this function can be called in_interrupt. - * Instead, query the USB frame number for our parent and use that. - */ - return usb_get_current_frame_number(wa->usb_dev); -} - -static int hwahc_op_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, - gfp_t gfp) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - - return wa_urb_enqueue(&hwahc->wa, urb->ep, urb, gfp); -} - -static int hwahc_op_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, - int status) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - - return wa_urb_dequeue(&hwahc->wa, urb, status); -} - -/* - * Release resources allocated for an endpoint - * - * If there is an associated rpipe to this endpoint, go ahead and put it. - */ -static void hwahc_op_endpoint_disable(struct usb_hcd *usb_hcd, - struct usb_host_endpoint *ep) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - - rpipe_ep_disable(&hwahc->wa, ep); -} - -static int __hwahc_op_wusbhc_start(struct wusbhc *wusbhc) -{ - int result; - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct device *dev = &hwahc->wa.usb_iface->dev; - - result = __wa_set_feature(&hwahc->wa, WA_ENABLE); - if (result < 0) { - dev_err(dev, "error commanding HC to start: %d\n", result); - goto error_stop; - } - result = __wa_wait_status(&hwahc->wa, WA_ENABLE, WA_ENABLE); - if (result < 0) { - dev_err(dev, "error waiting for HC to start: %d\n", result); - goto error_stop; - } - result = wa_nep_arm(&hwahc->wa, GFP_KERNEL); - if (result < 0) { - dev_err(dev, "cannot listen to notifications: %d\n", result); - goto error_stop; - } - /* - * If WUSB_QUIRK_ALEREON_HWA_DISABLE_XFER_NOTIFICATIONS is set, - * disable transfer notifications. - */ - if (hwahc->wa.quirks & - WUSB_QUIRK_ALEREON_HWA_DISABLE_XFER_NOTIFICATIONS) { - struct usb_host_interface *cur_altsetting = - hwahc->wa.usb_iface->cur_altsetting; - - result = usb_control_msg(hwahc->wa.usb_dev, - usb_sndctrlpipe(hwahc->wa.usb_dev, 0), - WA_REQ_ALEREON_DISABLE_XFER_NOTIFICATIONS, - USB_DIR_OUT | USB_TYPE_VENDOR | - USB_RECIP_INTERFACE, - WA_REQ_ALEREON_FEATURE_SET, - cur_altsetting->desc.bInterfaceNumber, - NULL, 0, - USB_CTRL_SET_TIMEOUT); - /* - * If we successfully sent the control message, start DTI here - * because no transfer notifications will be received which is - * where DTI is normally started. - */ - if (result == 0) - result = wa_dti_start(&hwahc->wa); - else - result = 0; /* OK. Continue normally. */ - - if (result < 0) { - dev_err(dev, "cannot start DTI: %d\n", result); - goto error_dti_start; - } - } - - return result; - -error_dti_start: - wa_nep_disarm(&hwahc->wa); -error_stop: - __wa_clear_feature(&hwahc->wa, WA_ENABLE); - return result; -} - -static void __hwahc_op_wusbhc_stop(struct wusbhc *wusbhc, int delay) -{ - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; - int ret; - - ret = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - WUSB_REQ_CHAN_STOP, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - delay * 1000, - iface_no, - NULL, 0, USB_CTRL_SET_TIMEOUT); - if (ret == 0) - msleep(delay); - - wa_nep_disarm(&hwahc->wa); - __wa_stop(&hwahc->wa); -} - -/* - * Set the UWB MAS allocation for the WUSB cluster - * - * @stream_index: stream to use (-1 for cancelling the allocation) - * @mas: mas bitmap to use - */ -static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index, - const struct uwb_mas_bm *mas) -{ - int result; - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - struct device *dev = &wa->usb_iface->dev; - u8 mas_le[UWB_NUM_MAS/8]; - - /* Set the stream index */ - result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - WUSB_REQ_SET_STREAM_IDX, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - stream_index, - wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - NULL, 0, USB_CTRL_SET_TIMEOUT); - if (result < 0) { - dev_err(dev, "Cannot set WUSB stream index: %d\n", result); - goto out; - } - uwb_mas_bm_copy_le(mas_le, mas); - /* Set the MAS allocation */ - result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - WUSB_REQ_SET_WUSB_MAS, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - mas_le, 32, USB_CTRL_SET_TIMEOUT); - if (result < 0) - dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result); -out: - return result; -} - -/* - * Add an IE to the host's MMC - * - * @interval: See WUSB1.0[8.5.3.1] - * @repeat_cnt: See WUSB1.0[8.5.3.1] - * @handle: See WUSB1.0[8.5.3.1] - * @wuie: Pointer to the header of the WUSB IE data to add. - * MUST BE allocated in a kmalloc buffer (no stack or - * vmalloc). - * - * NOTE: the format of the WUSB IEs for MMCs are different to the - * normal MBOA MAC IEs (IE Id + Length in MBOA MAC vs. Length + - * Id in WUSB IEs). Standards...you gotta love'em. - */ -static int __hwahc_op_mmcie_add(struct wusbhc *wusbhc, u8 interval, - u8 repeat_cnt, u8 handle, - struct wuie_hdr *wuie) -{ - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; - - return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - WUSB_REQ_ADD_MMC_IE, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - interval << 8 | repeat_cnt, - handle << 8 | iface_no, - wuie, wuie->bLength, USB_CTRL_SET_TIMEOUT); -} - -/* - * Remove an IE to the host's MMC - * - * @handle: See WUSB1.0[8.5.3.1] - */ -static int __hwahc_op_mmcie_rm(struct wusbhc *wusbhc, u8 handle) -{ - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; - return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - WUSB_REQ_REMOVE_MMC_IE, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - 0, handle << 8 | iface_no, - NULL, 0, USB_CTRL_SET_TIMEOUT); -} - -/* - * Update device information for a given fake port - * - * @port_idx: Fake port to which device is connected (wusbhc index, not - * USB port number). - */ -static int __hwahc_op_dev_info_set(struct wusbhc *wusbhc, - struct wusb_dev *wusb_dev) -{ - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; - struct hwa_dev_info *dev_info; - int ret; - - /* fill out the Device Info buffer and send it */ - dev_info = kzalloc(sizeof(struct hwa_dev_info), GFP_KERNEL); - if (!dev_info) - return -ENOMEM; - uwb_mas_bm_copy_le(dev_info->bmDeviceAvailability, - &wusb_dev->availability); - dev_info->bDeviceAddress = wusb_dev->addr; - - /* - * If the descriptors haven't been read yet, use a default PHY - * rate of 53.3 Mbit/s only. The correct value will be used - * when this will be called again as part of the - * authentication process (which occurs after the descriptors - * have been read). - */ - if (wusb_dev->wusb_cap_descr) - dev_info->wPHYRates = wusb_dev->wusb_cap_descr->wPHYRates; - else - dev_info->wPHYRates = cpu_to_le16(USB_WIRELESS_PHY_53); - - ret = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - WUSB_REQ_SET_DEV_INFO, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - 0, wusb_dev->port_idx << 8 | iface_no, - dev_info, sizeof(struct hwa_dev_info), - USB_CTRL_SET_TIMEOUT); - kfree(dev_info); - return ret; -} - -/* - * Set host's idea of which encryption (and key) method to use when - * talking to ad evice on a given port. - * - * If key is NULL, it means disable encryption for that "virtual port" - * (used when we disconnect). - */ -static int __hwahc_dev_set_key(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, - const void *key, size_t key_size, - u8 key_idx) -{ - int result = -ENOMEM; - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; - struct usb_key_descriptor *keyd; - size_t keyd_len; - - keyd_len = sizeof(*keyd) + key_size; - keyd = kzalloc(keyd_len, GFP_KERNEL); - if (keyd == NULL) - return -ENOMEM; - - keyd->bLength = keyd_len; - keyd->bDescriptorType = USB_DT_KEY; - keyd->tTKID[0] = (tkid >> 0) & 0xff; - keyd->tTKID[1] = (tkid >> 8) & 0xff; - keyd->tTKID[2] = (tkid >> 16) & 0xff; - memcpy(keyd->bKeyData, key, key_size); - - result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - USB_REQ_SET_DESCRIPTOR, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - USB_DT_KEY << 8 | key_idx, - port_idx << 8 | iface_no, - keyd, keyd_len, USB_CTRL_SET_TIMEOUT); - - kzfree(keyd); /* clear keys etc. */ - return result; -} - -/* - * Set host's idea of which encryption (and key) method to use when - * talking to ad evice on a given port. - * - * If key is NULL, it means disable encryption for that "virtual port" - * (used when we disconnect). - */ -static int __hwahc_op_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, - const void *key, size_t key_size) -{ - int result = -ENOMEM; - struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - struct wahc *wa = &hwahc->wa; - u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; - u8 encryption_value; - - /* Tell the host which key to use to talk to the device */ - if (key) { - u8 key_idx = wusb_key_index(0, WUSB_KEY_INDEX_TYPE_PTK, - WUSB_KEY_INDEX_ORIGINATOR_HOST); - - result = __hwahc_dev_set_key(wusbhc, port_idx, tkid, - key, key_size, key_idx); - if (result < 0) - goto error_set_key; - encryption_value = wusbhc->ccm1_etd->bEncryptionValue; - } else { - /* FIXME: this should come from wusbhc->etd[UNSECURE].value */ - encryption_value = 0; - } - - /* Set the encryption type for communicating with the device */ - result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), - USB_REQ_SET_ENCRYPTION, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - encryption_value, port_idx << 8 | iface_no, - NULL, 0, USB_CTRL_SET_TIMEOUT); - if (result < 0) - dev_err(wusbhc->dev, "Can't set host's WUSB encryption for " - "port index %u to %s (value %d): %d\n", port_idx, - wusb_et_name(wusbhc->ccm1_etd->bEncryptionType), - wusbhc->ccm1_etd->bEncryptionValue, result); -error_set_key: - return result; -} - -/* - * Set host's GTK key - */ -static int __hwahc_op_set_gtk(struct wusbhc *wusbhc, u32 tkid, - const void *key, size_t key_size) -{ - u8 key_idx = wusb_key_index(0, WUSB_KEY_INDEX_TYPE_GTK, - WUSB_KEY_INDEX_ORIGINATOR_HOST); - - return __hwahc_dev_set_key(wusbhc, 0, tkid, key, key_size, key_idx); -} - -/* - * Get the Wire Adapter class-specific descriptor - * - * NOTE: this descriptor comes with the big bundled configuration - * descriptor that includes the interfaces' and endpoints', so - * we just look for it in the cached copy kept by the USB stack. - * - * NOTE2: We convert LE fields to CPU order. - */ -static int wa_fill_descr(struct wahc *wa) -{ - int result; - struct device *dev = &wa->usb_iface->dev; - char *itr; - struct usb_device *usb_dev = wa->usb_dev; - struct usb_descriptor_header *hdr; - struct usb_wa_descriptor *wa_descr; - size_t itr_size, actconfig_idx; - - actconfig_idx = (usb_dev->actconfig - usb_dev->config) / - sizeof(usb_dev->config[0]); - itr = usb_dev->rawdescriptors[actconfig_idx]; - itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); - while (itr_size >= sizeof(*hdr)) { - hdr = (struct usb_descriptor_header *) itr; - dev_dbg(dev, "Extra device descriptor: " - "type %02x/%u bytes @ %zu (%zu left)\n", - hdr->bDescriptorType, hdr->bLength, - (itr - usb_dev->rawdescriptors[actconfig_idx]), - itr_size); - if (hdr->bDescriptorType == USB_DT_WIRE_ADAPTER) - goto found; - itr += hdr->bLength; - itr_size -= hdr->bLength; - } - dev_err(dev, "cannot find Wire Adapter Class descriptor\n"); - return -ENODEV; - -found: - result = -EINVAL; - if (hdr->bLength > itr_size) { /* is it available? */ - dev_err(dev, "incomplete Wire Adapter Class descriptor " - "(%zu bytes left, %u needed)\n", - itr_size, hdr->bLength); - goto error; - } - if (hdr->bLength < sizeof(*wa->wa_descr)) { - dev_err(dev, "short Wire Adapter Class descriptor\n"); - goto error; - } - wa->wa_descr = wa_descr = (struct usb_wa_descriptor *) hdr; - if (le16_to_cpu(wa_descr->bcdWAVersion) > 0x0100) - dev_warn(dev, "Wire Adapter v%d.%d newer than groked v1.0\n", - (le16_to_cpu(wa_descr->bcdWAVersion) & 0xff00) >> 8, - le16_to_cpu(wa_descr->bcdWAVersion) & 0x00ff); - result = 0; -error: - return result; -} - -static const struct hc_driver hwahc_hc_driver = { - .description = "hwa-hcd", - .product_desc = "Wireless USB HWA host controller", - .hcd_priv_size = sizeof(struct hwahc) - sizeof(struct usb_hcd), - .irq = NULL, /* FIXME */ - .flags = HCD_USB25, - .reset = hwahc_op_reset, - .start = hwahc_op_start, - .stop = hwahc_op_stop, - .get_frame_number = hwahc_op_get_frame_number, - .urb_enqueue = hwahc_op_urb_enqueue, - .urb_dequeue = hwahc_op_urb_dequeue, - .endpoint_disable = hwahc_op_endpoint_disable, - - .hub_status_data = wusbhc_rh_status_data, - .hub_control = wusbhc_rh_control, - .start_port_reset = wusbhc_rh_start_port_reset, -}; - -static int hwahc_security_create(struct hwahc *hwahc) -{ - int result; - struct wusbhc *wusbhc = &hwahc->wusbhc; - struct usb_device *usb_dev = hwahc->wa.usb_dev; - struct device *dev = &usb_dev->dev; - struct usb_security_descriptor *secd; - struct usb_encryption_descriptor *etd; - void *itr, *top; - size_t itr_size, needed, bytes; - u8 index; - char buf[64]; - - /* Find the host's security descriptors in the config descr bundle */ - index = (usb_dev->actconfig - usb_dev->config) / - sizeof(usb_dev->config[0]); - itr = usb_dev->rawdescriptors[index]; - itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); - top = itr + itr_size; - result = __usb_get_extra_descriptor(usb_dev->rawdescriptors[index], - le16_to_cpu(usb_dev->actconfig->desc.wTotalLength), - USB_DT_SECURITY, (void **) &secd, sizeof(*secd)); - if (result == -1) { - dev_warn(dev, "BUG? WUSB host has no security descriptors\n"); - return 0; - } - needed = sizeof(*secd); - if (top - (void *)secd < needed) { - dev_err(dev, "BUG? Not enough data to process security " - "descriptor header (%zu bytes left vs %zu needed)\n", - top - (void *) secd, needed); - return 0; - } - needed = le16_to_cpu(secd->wTotalLength); - if (top - (void *)secd < needed) { - dev_err(dev, "BUG? Not enough data to process security " - "descriptors (%zu bytes left vs %zu needed)\n", - top - (void *) secd, needed); - return 0; - } - /* Walk over the sec descriptors and store CCM1's on wusbhc */ - itr = (void *) secd + sizeof(*secd); - top = (void *) secd + le16_to_cpu(secd->wTotalLength); - index = 0; - bytes = 0; - while (itr < top) { - etd = itr; - if (top - itr < sizeof(*etd)) { - dev_err(dev, "BUG: bad host security descriptor; " - "not enough data (%zu vs %zu left)\n", - top - itr, sizeof(*etd)); - break; - } - if (etd->bLength < sizeof(*etd)) { - dev_err(dev, "BUG: bad host encryption descriptor; " - "descriptor is too short " - "(%zu vs %zu needed)\n", - (size_t)etd->bLength, sizeof(*etd)); - break; - } - itr += etd->bLength; - bytes += snprintf(buf + bytes, sizeof(buf) - bytes, - "%s (0x%02x) ", - wusb_et_name(etd->bEncryptionType), - etd->bEncryptionValue); - wusbhc->ccm1_etd = etd; - } - dev_info(dev, "supported encryption types: %s\n", buf); - if (wusbhc->ccm1_etd == NULL) { - dev_err(dev, "E: host doesn't support CCM-1 crypto\n"); - return 0; - } - /* Pretty print what we support */ - return 0; -} - -static void hwahc_security_release(struct hwahc *hwahc) -{ - /* nothing to do here so far... */ -} - -static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface, - kernel_ulong_t quirks) -{ - int result; - struct device *dev = &iface->dev; - struct wusbhc *wusbhc = &hwahc->wusbhc; - struct wahc *wa = &hwahc->wa; - struct usb_device *usb_dev = interface_to_usbdev(iface); - - wa->usb_dev = usb_get_dev(usb_dev); /* bind the USB device */ - wa->usb_iface = usb_get_intf(iface); - wusbhc->dev = dev; - /* defer getting the uwb_rc handle until it is needed since it - * may not have been registered by the hwa_rc driver yet. */ - wusbhc->uwb_rc = NULL; - result = wa_fill_descr(wa); /* Get the device descriptor */ - if (result < 0) - goto error_fill_descriptor; - if (wa->wa_descr->bNumPorts > USB_MAXCHILDREN) { - dev_err(dev, "FIXME: USB_MAXCHILDREN too low for WUSB " - "adapter (%u ports)\n", wa->wa_descr->bNumPorts); - wusbhc->ports_max = USB_MAXCHILDREN; - } else { - wusbhc->ports_max = wa->wa_descr->bNumPorts; - } - wusbhc->mmcies_max = wa->wa_descr->bNumMMCIEs; - wusbhc->start = __hwahc_op_wusbhc_start; - wusbhc->stop = __hwahc_op_wusbhc_stop; - wusbhc->mmcie_add = __hwahc_op_mmcie_add; - wusbhc->mmcie_rm = __hwahc_op_mmcie_rm; - wusbhc->dev_info_set = __hwahc_op_dev_info_set; - wusbhc->bwa_set = __hwahc_op_bwa_set; - wusbhc->set_num_dnts = __hwahc_op_set_num_dnts; - wusbhc->set_ptk = __hwahc_op_set_ptk; - wusbhc->set_gtk = __hwahc_op_set_gtk; - result = hwahc_security_create(hwahc); - if (result < 0) { - dev_err(dev, "Can't initialize security: %d\n", result); - goto error_security_create; - } - wa->wusb = wusbhc; /* FIXME: ugly, need to fix */ - result = wusbhc_create(&hwahc->wusbhc); - if (result < 0) { - dev_err(dev, "Can't create WUSB HC structures: %d\n", result); - goto error_wusbhc_create; - } - result = wa_create(&hwahc->wa, iface, quirks); - if (result < 0) - goto error_wa_create; - return 0; - -error_wa_create: - wusbhc_destroy(&hwahc->wusbhc); -error_wusbhc_create: - /* WA Descr fill allocs no resources */ -error_security_create: -error_fill_descriptor: - usb_put_intf(iface); - usb_put_dev(usb_dev); - return result; -} - -static void hwahc_destroy(struct hwahc *hwahc) -{ - struct wusbhc *wusbhc = &hwahc->wusbhc; - - mutex_lock(&wusbhc->mutex); - __wa_destroy(&hwahc->wa); - wusbhc_destroy(&hwahc->wusbhc); - hwahc_security_release(hwahc); - hwahc->wusbhc.dev = NULL; - uwb_rc_put(wusbhc->uwb_rc); - usb_put_intf(hwahc->wa.usb_iface); - usb_put_dev(hwahc->wa.usb_dev); - mutex_unlock(&wusbhc->mutex); -} - -static void hwahc_init(struct hwahc *hwahc) -{ - wa_init(&hwahc->wa); -} - -static int hwahc_probe(struct usb_interface *usb_iface, - const struct usb_device_id *id) -{ - int result; - struct usb_hcd *usb_hcd; - struct wusbhc *wusbhc; - struct hwahc *hwahc; - struct device *dev = &usb_iface->dev; - - result = -ENOMEM; - usb_hcd = usb_create_hcd(&hwahc_hc_driver, &usb_iface->dev, "wusb-hwa"); - if (usb_hcd == NULL) { - dev_err(dev, "unable to allocate instance\n"); - goto error_alloc; - } - usb_hcd->wireless = 1; - usb_hcd->self.sg_tablesize = ~0; - wusbhc = usb_hcd_to_wusbhc(usb_hcd); - hwahc = container_of(wusbhc, struct hwahc, wusbhc); - hwahc_init(hwahc); - result = hwahc_create(hwahc, usb_iface, id->driver_info); - if (result < 0) { - dev_err(dev, "Cannot initialize internals: %d\n", result); - goto error_hwahc_create; - } - result = usb_add_hcd(usb_hcd, 0, 0); - if (result < 0) { - dev_err(dev, "Cannot add HCD: %d\n", result); - goto error_add_hcd; - } - device_wakeup_enable(usb_hcd->self.controller); - result = wusbhc_b_create(&hwahc->wusbhc); - if (result < 0) { - dev_err(dev, "Cannot setup phase B of WUSBHC: %d\n", result); - goto error_wusbhc_b_create; - } - return 0; - -error_wusbhc_b_create: - usb_remove_hcd(usb_hcd); -error_add_hcd: - hwahc_destroy(hwahc); -error_hwahc_create: - usb_put_hcd(usb_hcd); -error_alloc: - return result; -} - -static void hwahc_disconnect(struct usb_interface *usb_iface) -{ - struct usb_hcd *usb_hcd; - struct wusbhc *wusbhc; - struct hwahc *hwahc; - - usb_hcd = usb_get_intfdata(usb_iface); - wusbhc = usb_hcd_to_wusbhc(usb_hcd); - hwahc = container_of(wusbhc, struct hwahc, wusbhc); - - wusbhc_b_destroy(&hwahc->wusbhc); - usb_remove_hcd(usb_hcd); - hwahc_destroy(hwahc); - usb_put_hcd(usb_hcd); -} - -static const struct usb_device_id hwahc_id_table[] = { - /* Alereon 5310 */ - { USB_DEVICE_AND_INTERFACE_INFO(0x13dc, 0x5310, 0xe0, 0x02, 0x01), - .driver_info = WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC | - WUSB_QUIRK_ALEREON_HWA_DISABLE_XFER_NOTIFICATIONS }, - /* Alereon 5611 */ - { USB_DEVICE_AND_INTERFACE_INFO(0x13dc, 0x5611, 0xe0, 0x02, 0x01), - .driver_info = WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC | - WUSB_QUIRK_ALEREON_HWA_DISABLE_XFER_NOTIFICATIONS }, - /* FIXME: use class labels for this */ - { USB_INTERFACE_INFO(0xe0, 0x02, 0x01), }, - {}, -}; -MODULE_DEVICE_TABLE(usb, hwahc_id_table); - -static struct usb_driver hwahc_driver = { - .name = "hwa-hc", - .probe = hwahc_probe, - .disconnect = hwahc_disconnect, - .id_table = hwahc_id_table, -}; - -module_usb_driver(hwahc_driver); - -MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); -MODULE_DESCRIPTION("Host Wired Adapter USB Host Control Driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/imx21-dbg.c b/drivers/usb/host/imx21-dbg.c index 7fcf1d9dd7f3..02a1344fbd6a 100644 --- a/drivers/usb/host/imx21-dbg.c +++ b/drivers/usb/host/imx21-dbg.c @@ -419,7 +419,7 @@ static void create_debug_files(struct imx21 *imx21) { struct dentry *root; - root = debugfs_create_dir(dev_name(imx21->dev), NULL); + root = debugfs_create_dir(dev_name(imx21->dev), usb_debug_root); imx21->debug_root = root; debugfs_create_file("status", S_IRUGO, root, imx21, &debug_status_fops); diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c index 6e3dad19d369..5835f9966204 100644 --- a/drivers/usb/host/imx21-hcd.c +++ b/drivers/usb/host/imx21-hcd.c @@ -1771,7 +1771,7 @@ static const struct hc_driver imx21_hc_driver = { .product_desc = "IMX21 USB Host Controller", .hcd_priv_size = sizeof(struct imx21), - .flags = HCD_USB11, + .flags = HCD_DMA | HCD_USB11, .irq = imx21_irq, .reset = imx21_hc_reset, @@ -1836,10 +1836,8 @@ static int imx21_probe(struct platform_device *pdev) if (!res) return -ENODEV; irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq); + if (irq < 0) return irq; - } hcd = usb_create_hcd(&imx21_hc_driver, &pdev->dev, dev_name(&pdev->dev)); diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 74da136d322a..a87c0b26279e 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1581,12 +1581,6 @@ static int isp116x_probe(struct platform_device *pdev) irq = ires->start; irqflags = ires->flags & IRQF_TRIGGER_MASK; - if (pdev->dev.dma_mask) { - DBG("DMA not supported\n"); - ret = -EINVAL; - goto err1; - } - if (!request_mem_region(addr->start, 2, hcd_name)) { ret = -EBUSY; goto err1; diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index 28bf8bfb091e..4a3a2852523f 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -2627,7 +2627,7 @@ static int isp1362_probe(struct platform_device *pdev) { struct usb_hcd *hcd; struct isp1362_hcd *isp1362_hcd; - struct resource *addr, *data, *irq_res; + struct resource *data, *irq_res; void __iomem *addr_reg; void __iomem *data_reg; int irq; @@ -2645,19 +2645,13 @@ static int isp1362_probe(struct platform_device *pdev) if (pdev->num_resources < 3) return -ENODEV; - if (pdev->dev.dma_mask) { - DBG(1, "won't do DMA"); - return -ENODEV; - } - irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!irq_res) return -ENODEV; irq = irq_res->start; - addr = platform_get_resource(pdev, IORESOURCE_MEM, 1); - addr_reg = devm_ioremap_resource(&pdev->dev, addr); + addr_reg = devm_platform_ioremap_resource(pdev, 1); if (IS_ERR(addr_reg)) return PTR_ERR(addr_reg); diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c index afa321ab55fc..8819f502b6a6 100644 --- a/drivers/usb/host/max3421-hcd.c +++ b/drivers/usb/host/max3421-hcd.c @@ -1800,21 +1800,6 @@ max3421_bus_resume(struct usb_hcd *hcd) return -1; } -/* - * The SPI driver already takes care of DMA-mapping/unmapping, so no - * reason to do it twice. - */ -static int -max3421_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags) -{ - return 0; -} - -static void -max3421_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) -{ -} - static const struct hc_driver max3421_hcd_desc = { .description = "max3421", .product_desc = DRIVER_DESC, @@ -1826,8 +1811,6 @@ static const struct hc_driver max3421_hcd_desc = { .get_frame_number = max3421_get_frame_number, .urb_enqueue = max3421_urb_enqueue, .urb_dequeue = max3421_urb_dequeue, - .map_urb_for_dma = max3421_map_urb_for_dma, - .unmap_urb_for_dma = max3421_unmap_urb_for_dma, .endpoint_disable = max3421_endpoint_disable, .hub_status_data = max3421_hub_status_data, .hub_control = max3421_hub_control, diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index fc35a7993b7b..b635c6a1b1a9 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -115,7 +115,6 @@ static void at91_start_hc(struct platform_device *pdev) static void at91_stop_hc(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct ohci_regs __iomem *regs = hcd->regs; struct ohci_at91_priv *ohci_at91 = hcd_to_ohci_at91_priv(hcd); dev_dbg(&pdev->dev, "stop\n"); @@ -123,7 +122,7 @@ static void at91_stop_hc(struct platform_device *pdev) /* * Put the USB host controller into reset. */ - writel(0, ®s->control); + usb_hcd_platform_shutdown(pdev); /* * Stop the USB clocks. @@ -628,6 +627,7 @@ ohci_hcd_at91_drv_suspend(struct device *dev) /* flush the writes */ (void) ohci_readl (ohci, &ohci->regs->control); + msleep(1); at91_stop_clock(ohci_at91); } @@ -642,8 +642,8 @@ ohci_hcd_at91_drv_resume(struct device *dev) if (ohci_at91->wakeup) disable_irq_wake(hcd->irq); - - at91_start_clock(ohci_at91); + else + at91_start_clock(ohci_at91); ohci_resume(hcd, false); diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c index 38183ac438c6..1371b0c249ec 100644 --- a/drivers/usb/host/ohci-da8xx.c +++ b/drivers/usb/host/ohci-da8xx.c @@ -415,13 +415,17 @@ static int ohci_da8xx_probe(struct platform_device *pdev) } da8xx_ohci->oc_gpio = devm_gpiod_get_optional(dev, "oc", GPIOD_IN); - if (IS_ERR(da8xx_ohci->oc_gpio)) + if (IS_ERR(da8xx_ohci->oc_gpio)) { + error = PTR_ERR(da8xx_ohci->oc_gpio); goto err; + } if (da8xx_ohci->oc_gpio) { oc_irq = gpiod_to_irq(da8xx_ohci->oc_gpio); - if (oc_irq < 0) + if (oc_irq < 0) { + error = oc_irq; goto err; + } error = devm_request_threaded_irq(dev, oc_irq, NULL, ohci_da8xx_oc_thread, IRQF_TRIGGER_RISING | diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 905c6317e0c3..bd40e597f256 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -19,7 +19,7 @@ #include "ohci.h" -#define DRIVER_DESC "OHCI EXYNOS driver" +#define DRIVER_DESC "OHCI Exynos driver" static const char hcd_name[] = "ohci-exynos"; static struct hc_driver __read_mostly exynos_ohci_hc_driver; @@ -32,6 +32,7 @@ struct exynos_ohci_hcd { struct clk *clk; struct device_node *of_node; struct phy *phy[PHY_NUMBER]; + bool legacy_phy; }; static int exynos_ohci_get_phy(struct device *dev, @@ -39,10 +40,22 @@ static int exynos_ohci_get_phy(struct device *dev, { struct device_node *child; struct phy *phy; - int phy_number; + int phy_number, num_phys; int ret; /* Get PHYs for the controller */ + num_phys = of_count_phandle_with_args(dev->of_node, "phys", + "#phy-cells"); + for (phy_number = 0; phy_number < num_phys; phy_number++) { + phy = devm_of_phy_get_by_index(dev, dev->of_node, phy_number); + if (IS_ERR(phy)) + return PTR_ERR(phy); + exynos_ohci->phy[phy_number] = phy; + } + if (num_phys > 0) + return 0; + + /* Get PHYs using legacy bindings */ for_each_available_child_of_node(dev->of_node, child) { ret = of_property_read_u32(child, "reg", &phy_number); if (ret) { @@ -73,6 +86,7 @@ static int exynos_ohci_get_phy(struct device *dev, } } + exynos_ohci->legacy_phy = true; return 0; } @@ -172,11 +186,12 @@ static int exynos_ohci_probe(struct platform_device *pdev) } /* - * Workaround: reset of_node pointer to avoid conflict between Exynos - * OHCI port subnodes and generic USB device bindings + * Workaround: reset of_node pointer to avoid conflict between legacy + * Exynos OHCI port subnodes and generic USB device bindings */ exynos_ohci->of_node = pdev->dev.of_node; - pdev->dev.of_node = NULL; + if (exynos_ohci->legacy_phy) + pdev->dev.of_node = NULL; err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) { diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index b457fdaff297..4de91653a2c7 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -419,8 +419,7 @@ static void ohci_usb_reset (struct ohci_hcd *ohci) * other cases where the next software may expect clean state from the * "firmware". this is bus-neutral, unlike shutdown() methods. */ -static void -ohci_shutdown (struct usb_hcd *hcd) +static void _ohci_shutdown(struct usb_hcd *hcd) { struct ohci_hcd *ohci; @@ -436,6 +435,16 @@ ohci_shutdown (struct usb_hcd *hcd) ohci->rh_state = OHCI_RH_HALTED; } +static void ohci_shutdown(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + unsigned long flags; + + spin_lock_irqsave(&ohci->lock, flags); + _ohci_shutdown(hcd); + spin_unlock_irqrestore(&ohci->lock, flags); +} + /*-------------------------------------------------------------------------* * HC functions *-------------------------------------------------------------------------*/ @@ -760,7 +769,7 @@ static void io_watchdog_func(struct timer_list *t) died: usb_hc_died(ohci_to_hcd(ohci)); ohci_dump(ohci); - ohci_shutdown(ohci_to_hcd(ohci)); + _ohci_shutdown(ohci_to_hcd(ohci)); goto done; } else { /* No write back because the done queue was empty */ @@ -1178,7 +1187,7 @@ static const struct hc_driver ohci_hc_driver = { * generic hardware linkage */ .irq = ohci_irq, - .flags = HCD_MEMORY | HCD_USB11, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB11, /* * basic lifecycle operations diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index f5f532601092..85878e8ad331 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -29,10 +29,7 @@ #include "ohci.h" -#include <mach/hardware.h> - #define USB_CONFIG_BASE 0x31020000 -#define USB_OTG_STAT_CONTROL IO_ADDRESS(USB_CONFIG_BASE + 0x110) /* USB_OTG_STAT_CONTROL bit defines */ #define TRANSPARENT_I2C_EN (1 << 7) @@ -122,24 +119,38 @@ static inline void isp1301_vbus_off(void) static void ohci_nxp_start_hc(void) { - unsigned long tmp = __raw_readl(USB_OTG_STAT_CONTROL) | HOST_EN; + void __iomem *usb_otg_stat_control = ioremap(USB_CONFIG_BASE + 0x110, 4); + unsigned long tmp; + + if (WARN_ON(!usb_otg_stat_control)) + return; + + tmp = __raw_readl(usb_otg_stat_control) | HOST_EN; - __raw_writel(tmp, USB_OTG_STAT_CONTROL); + __raw_writel(tmp, usb_otg_stat_control); isp1301_vbus_on(); + + iounmap(usb_otg_stat_control); } static void ohci_nxp_stop_hc(void) { + void __iomem *usb_otg_stat_control = ioremap(USB_CONFIG_BASE + 0x110, 4); unsigned long tmp; + if (WARN_ON(!usb_otg_stat_control)) + return; + isp1301_vbus_off(); - tmp = __raw_readl(USB_OTG_STAT_CONTROL) & ~HOST_EN; - __raw_writel(tmp, USB_OTG_STAT_CONTROL); + tmp = __raw_readl(usb_otg_stat_control) & ~HOST_EN; + __raw_writel(tmp, usb_otg_stat_control); + + iounmap(usb_otg_stat_control); } static int ohci_hcd_nxp_probe(struct platform_device *pdev) { - struct usb_hcd *hcd = 0; + struct usb_hcd *hcd = NULL; const struct hc_driver *driver = &ohci_nxp_hc_driver; struct resource *res; int ret = 0, irq; diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c index 65a1c3fdc88c..7addfc2cbadc 100644 --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -111,10 +111,8 @@ static int ohci_platform_probe(struct platform_device *dev) return err; irq = platform_get_irq(dev, 0); - if (irq < 0) { - dev_err(&dev->dev, "no irq provided"); + if (irq < 0) return irq; - } hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev, dev_name(&dev->dev)); diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 76a9b40b08f1..45f7cceb6df3 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -50,7 +50,7 @@ static const struct hc_driver ohci_ppc_of_hc_driver = { * generic hardware linkage */ .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, + .flags = HCD_USB11 | HCD_DMA | HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c index 395f9d3bc849..f77cd6af0ccf 100644 --- a/drivers/usb/host/ohci-ps3.c +++ b/drivers/usb/host/ohci-ps3.c @@ -46,7 +46,7 @@ static const struct hc_driver ps3_ohci_hc_driver = { .product_desc = "PS3 OHCI Host Controller", .hcd_priv_size = sizeof(struct ohci_hcd), .irq = ohci_irq, - .flags = HCD_MEMORY | HCD_USB11, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB11, .reset = ps3_ohci_hc_reset, .start = ps3_ohci_hc_start, .stop = ohci_stop, diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 3e2474959735..7679fb583e41 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -148,7 +148,7 @@ static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *pxa_ohci, int mode) uhcrhda |= RH_A_NPS; break; case PMM_GLOBAL_MODE: - uhcrhda &= ~(RH_A_NPS & RH_A_PSM); + uhcrhda &= ~(RH_A_NPS | RH_A_PSM); break; case PMM_PERPORT_MODE: uhcrhda &= ~(RH_A_NPS); diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index ebec9a7699e3..8e19a5eb5b62 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -84,7 +84,7 @@ static const struct hc_driver ohci_sa1111_hc_driver = { * generic hardware linkage */ .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, + .flags = HCD_USB11 | HCD_DMA | HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ohci-st.c b/drivers/usb/host/ohci-st.c index 638a92bd2cdc..ac796ccd93ef 100644 --- a/drivers/usb/host/ohci-st.c +++ b/drivers/usb/host/ohci-st.c @@ -138,10 +138,8 @@ static int st_ohci_platform_probe(struct platform_device *dev) return -ENODEV; irq = platform_get_irq(dev, 0); - if (irq < 0) { - dev_err(&dev->dev, "no irq provided"); + if (irq < 0) return irq; - } res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!res_mem) { diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c index d5a293a707b6..fb6f5e9ae5c6 100644 --- a/drivers/usb/host/ohci-tmio.c +++ b/drivers/usb/host/ohci-tmio.c @@ -97,10 +97,13 @@ static void tmio_stop_hc(struct platform_device *dev) switch (ohci->num_ports) { default: dev_err(&dev->dev, "Unsupported amount of ports: %d\n", ohci->num_ports); + /* fall through */ case 3: pm |= CCR_PM_USBPW3; + /* fall through */ case 2: pm |= CCR_PM_USBPW2; + /* fall through */ case 1: pm |= CCR_PM_USBPW1; } diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index 47c5515a9ce4..120666a0d590 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -31,10 +31,449 @@ #include <linux/irq.h> #include <linux/platform_device.h> -#include "oxu210hp.h" - #define DRIVER_VERSION "0.0.50" +#define OXU_DEVICEID 0x00 + #define OXU_REV_MASK 0xffff0000 + #define OXU_REV_SHIFT 16 + #define OXU_REV_2100 0x2100 + #define OXU_BO_SHIFT 8 + #define OXU_BO_MASK (0x3 << OXU_BO_SHIFT) + #define OXU_MAJ_REV_SHIFT 4 + #define OXU_MAJ_REV_MASK (0xf << OXU_MAJ_REV_SHIFT) + #define OXU_MIN_REV_SHIFT 0 + #define OXU_MIN_REV_MASK (0xf << OXU_MIN_REV_SHIFT) +#define OXU_HOSTIFCONFIG 0x04 +#define OXU_SOFTRESET 0x08 + #define OXU_SRESET (1 << 0) + +#define OXU_PIOBURSTREADCTRL 0x0C + +#define OXU_CHIPIRQSTATUS 0x10 +#define OXU_CHIPIRQEN_SET 0x14 +#define OXU_CHIPIRQEN_CLR 0x18 + #define OXU_USBSPHLPWUI 0x00000080 + #define OXU_USBOTGLPWUI 0x00000040 + #define OXU_USBSPHI 0x00000002 + #define OXU_USBOTGI 0x00000001 + +#define OXU_CLKCTRL_SET 0x1C + #define OXU_SYSCLKEN 0x00000008 + #define OXU_USBSPHCLKEN 0x00000002 + #define OXU_USBOTGCLKEN 0x00000001 + +#define OXU_ASO 0x68 + #define OXU_SPHPOEN 0x00000100 + #define OXU_OVRCCURPUPDEN 0x00000800 + #define OXU_ASO_OP (1 << 10) + #define OXU_COMPARATOR 0x000004000 + +#define OXU_USBMODE 0x1A8 + #define OXU_VBPS 0x00000020 + #define OXU_ES_LITTLE 0x00000000 + #define OXU_CM_HOST_ONLY 0x00000003 + +/* + * Proper EHCI structs & defines + */ + +/* Magic numbers that can affect system performance */ +#define EHCI_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */ +#define EHCI_TUNE_RL_HS 4 /* nak throttle; see 4.9 */ +#define EHCI_TUNE_RL_TT 0 +#define EHCI_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */ +#define EHCI_TUNE_MULT_TT 1 +#define EHCI_TUNE_FLS 2 /* (small) 256 frame schedule */ + +struct oxu_hcd; + +/* EHCI register interface, corresponds to EHCI Revision 0.95 specification */ + +/* Section 2.2 Host Controller Capability Registers */ +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. + */ + u32 hc_capbase; +#define HC_LENGTH(p) (((p)>>00)&0x00ff) /* bits 7:0 */ +#define HC_VERSION(p) (((p)>>16)&0xffff) /* bits 31:16 */ + 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 */ +#define HCS_N_CC(p) (((p)>>12)&0xf) /* bits 15:12, #companion HCs */ +#define HCS_N_PCC(p) (((p)>>8)&0xf) /* bits 11:8, ports per CC */ +#define HCS_PORTROUTED(p) ((p)&(1 << 7)) /* true: port routing */ +#define HCS_PPC(p) ((p)&(1 << 4)) /* true: port power control */ +#define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */ + + u32 hcc_params; /* HCCPARAMS - offset 0x8 */ +#define HCC_EXT_CAPS(p) (((p)>>8)&0xff) /* for pci extended caps */ +#define HCC_ISOC_CACHE(p) ((p)&(1 << 7)) /* true: can cache isoc frame */ +#define HCC_ISOC_THRES(p) (((p)>>4)&0x7) /* bits 6:4, uframes cached */ +#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*/ +#define HCC_64BIT_ADDR(p) ((p)&(1)) /* true: can use 64-bit addr */ + u8 portroute[8]; /* nibbles for routing - offset 0xC */ +} __packed; + + +/* Section 2.3 Host Controller Operational Registers */ +struct ehci_regs { + /* USBCMD: offset 0x00 */ + u32 command; +/* 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_LRESET (1<<7) /* partial reset (no ports, etc) */ +#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, ...) */ + +#define INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT) + + /* 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 reserved[9]; + + /* CONFIGFLAG: offset 0x40 */ + u32 configured_flag; +#define FLAG_CF (1<<0) /* true: we'll support "high speed" */ + + /* PORTSC: offset 0x44 */ + u32 port_status[0]; /* up to N_PORTS */ +/* 31:23 reserved */ +#define PORT_WKOC_E (1<<22) /* wake on overcurrent (enable) */ +#define PORT_WKDISC_E (1<<21) /* wake on disconnect (enable) */ +#define PORT_WKCONN_E (1<<20) /* wake on connect (enable) */ +/* 19:16 for port testing */ +#define PORT_LED_OFF (0<<14) +#define PORT_LED_AMBER (1<<14) +#define PORT_LED_GREEN (2<<14) +#define PORT_LED_MASK (3<<14) +#define PORT_OWNER (1<<13) /* true: companion hc owns this port */ +#define PORT_POWER (1<<12) /* true: has power (see PPC) */ +#define PORT_USB11(x) (((x)&(3<<10)) == (1<<10)) /* USB 1.1 device */ +/* 11:10 for detecting lowspeed devices (reset vs release ownership) */ +/* 9 reserved */ +#define PORT_RESET (1<<8) /* reset port */ +#define PORT_SUSPEND (1<<7) /* suspend port */ +#define PORT_RESUME (1<<6) /* resume it */ +#define PORT_OCC (1<<5) /* over current change */ +#define PORT_OC (1<<4) /* over current active */ +#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 | PORT_OCC) +} __packed; + +/* Appendix C, Debug port ... intended for use with special "debug devices" + * that can help if there's no serial console. (nonstandard enumeration.) + */ +struct ehci_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)) +} __packed; + +#define QTD_NEXT(dma) cpu_to_le32((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 ehci_qtd { + /* first part defined by EHCI spec */ + __le32 hw_next; /* see EHCI 3.5.1 */ + __le32 hw_alt_next; /* see EHCI 3.5.2 */ + __le32 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? */ + __le32 hw_buf[5]; /* see EHCI 3.5.4 */ + __le32 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 */ + + u32 qtd_buffer_len; + void *buffer; + dma_addr_t buffer_dma; + void *transfer_buffer; + void *transfer_dma; +} __aligned(32); + +/* mask NakCnt+T in qh->hw_alt_next */ +#define QTD_MASK cpu_to_le32 (~0x1f) + +#define IS_SHORT_READ(token) (QTD_LENGTH(token) != 0 && QTD_PID(token) == 1) + +/* Type tag from {qh, itd, sitd, fstn}->hw_next */ +#define Q_NEXT_TYPE(dma) ((dma) & cpu_to_le32 (3 << 1)) + +/* values for that type tag */ +#define Q_TYPE_QH cpu_to_le32 (1 << 1) + +/* next async queue entry, or pointer to interrupt/periodic QH */ +#define QH_NEXT(dma) (cpu_to_le32(((u32)dma)&~0x01f)|Q_TYPE_QH) + +/* for periodic/async schedules and qtd lists, mark end of list */ +#define EHCI_LIST_END cpu_to_le32(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 ehci_shadow { + struct ehci_qh *qh; /* Q_TYPE_QH */ + __le32 *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. + */ + +struct ehci_qh { + /* first part defined by EHCI spec */ + __le32 hw_next; /* see EHCI 3.6.1 */ + __le32 hw_info1; /* see EHCI 3.6.2 */ +#define QH_HEAD 0x00008000 + __le32 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 + __le32 hw_current; /* qtd list - see EHCI 3.6.4 */ + + /* qtd overlay (hardware parts of a struct ehci_qtd) */ + __le32 hw_qtd_next; + __le32 hw_alt_next; + __le32 hw_token; + __le32 hw_buf[5]; + __le32 hw_buf_hi[5]; + + /* the rest is HCD-private */ + dma_addr_t qh_dma; /* address of qh */ + union ehci_shadow qh_next; /* ptr to qh; or periodic */ + struct list_head qtd_list; /* sw qtd list */ + struct ehci_qtd *dummy; + struct ehci_qh *reclaim; /* next to reclaim */ + + struct oxu_hcd *oxu; + struct kref kref; + unsigned int stamp; + + 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 reclaim q */ +#define QH_STATE_COMPLETING 5 /* don't touch token.HALT */ + + /* 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 */ +} __aligned(32); + +/* + * Proper OXU210HP structs + */ + +#define OXU_OTG_CORE_OFFSET 0x00400 +#define OXU_OTG_CAP_OFFSET (OXU_OTG_CORE_OFFSET + 0x100) +#define OXU_SPH_CORE_OFFSET 0x00800 +#define OXU_SPH_CAP_OFFSET (OXU_SPH_CORE_OFFSET + 0x100) + +#define OXU_OTG_MEM 0xE000 +#define OXU_SPH_MEM 0x16000 + +/* Only how many elements & element structure are specifies here. */ +/* 2 host controllers are enabled - total size <= 28 kbytes */ +#define DEFAULT_I_TDPS 1024 +#define QHEAD_NUM 16 +#define QTD_NUM 32 +#define SITD_NUM 8 +#define MURB_NUM 8 + +#define BUFFER_NUM 8 +#define BUFFER_SIZE 512 + +struct oxu_info { + struct usb_hcd *hcd[2]; +}; + +struct oxu_buf { + u8 buffer[BUFFER_SIZE]; +} __aligned(BUFFER_SIZE); + +struct oxu_onchip_mem { + struct oxu_buf db_pool[BUFFER_NUM]; + + u32 frame_list[DEFAULT_I_TDPS]; + struct ehci_qh qh_pool[QHEAD_NUM]; + struct ehci_qtd qtd_pool[QTD_NUM]; +} __aligned(4 << 10); + +#define EHCI_MAX_ROOT_PORTS 15 /* see HCS_N_PORTS */ + +struct oxu_murb { + struct urb urb; + struct urb *main; + u8 last; +}; + +struct oxu_hcd { /* one per controller */ + unsigned int is_otg:1; + + u8 qh_used[QHEAD_NUM]; + u8 qtd_used[QTD_NUM]; + u8 db_used[BUFFER_NUM]; + u8 murb_used[MURB_NUM]; + + struct oxu_onchip_mem __iomem *mem; + spinlock_t mem_lock; + + struct timer_list urb_timer; + + struct ehci_caps __iomem *caps; + struct ehci_regs __iomem *regs; + + u32 hcs_params; /* cached register copy */ + spinlock_t lock; + + /* async schedule support */ + struct ehci_qh *async; + struct ehci_qh *reclaim; + unsigned int reclaim_ready:1; + unsigned int scanning:1; + + /* periodic schedule support */ + unsigned int periodic_size; + __le32 *periodic; /* hw periodic table */ + dma_addr_t periodic_dma; + unsigned int i_thresh; /* uframes HC might cache */ + + union ehci_shadow *pshadow; /* mirror hw periodic table */ + int next_uframe; /* scan periodic, start here */ + unsigned int periodic_sched; /* periodic activity count */ + + /* per root hub port */ + unsigned long reset_done[EHCI_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 + */ + + struct timer_list watchdog; + unsigned long actions; + unsigned int stamp; + unsigned long next_statechange; + u32 command; + + /* SILICON QUIRKS */ + struct list_head urb_list; /* this is the head to urb + * queue that didn't get enough + * resources + */ + struct oxu_murb *murb_pool; /* murb per split big urb */ + unsigned int urb_len; + + u8 sbrn; /* packed release number */ +}; + +#define EHCI_IAA_JIFFIES (HZ/100) /* arbitrary; ~10 msec */ +#define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */ +#define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */ +#define EHCI_SHRINK_JIFFIES (HZ/200) /* async qh unlink delay */ + +enum ehci_timer_action { + TIMER_IO_WATCHDOG, + TIMER_IAA_WATCHDOG, + TIMER_ASYNC_SHRINK, + TIMER_ASYNC_OFF, +}; + /* * Main defines */ @@ -237,12 +676,12 @@ static int oxu_hub_control(struct usb_hcd *hcd, */ /* Low level read/write registers functions */ -static inline u32 oxu_readl(void *base, u32 reg) +static inline u32 oxu_readl(void __iomem *base, u32 reg) { return readl(base + reg); } -static inline void oxu_writel(void *base, u32 reg, u32 val) +static inline void oxu_writel(void __iomem *base, u32 reg, u32 val) { writel(val, base + reg); } @@ -2344,11 +2783,15 @@ static void ehci_port_power(struct oxu_hcd *oxu, int is_on) return; oxu_dbg(oxu, "...power%s ports...\n", is_on ? "up" : "down"); - for (port = HCS_N_PORTS(oxu->hcs_params); port > 0; ) - (void) oxu_hub_control(oxu_to_hcd(oxu), - is_on ? SetPortFeature : ClearPortFeature, - USB_PORT_FEAT_POWER, - port--, NULL, 0); + for (port = HCS_N_PORTS(oxu->hcs_params); port > 0; ) { + if (is_on) + oxu_hub_control(oxu_to_hcd(oxu), SetPortFeature, + USB_PORT_FEAT_POWER, port--, NULL, 0); + else + oxu_hub_control(oxu_to_hcd(oxu), ClearPortFeature, + USB_PORT_FEAT_POWER, port--, NULL, 0); + } + msleep(20); } @@ -2649,9 +3092,6 @@ static int oxu_reset(struct usb_hcd *hcd) INIT_LIST_HEAD(&oxu->urb_list); oxu->urb_len = 0; - /* FIMXE */ - hcd->self.controller->dma_mask = NULL; - if (oxu->is_otg) { oxu->caps = hcd->regs + OXU_OTG_CAP_OFFSET; oxu->regs = hcd->regs + OXU_OTG_CAP_OFFSET + \ @@ -3627,7 +4067,7 @@ static const struct hc_driver oxu_hc_driver = { * Module stuff */ -static void oxu_configuration(struct platform_device *pdev, void *base) +static void oxu_configuration(struct platform_device *pdev, void __iomem *base) { u32 tmp; @@ -3657,7 +4097,7 @@ static void oxu_configuration(struct platform_device *pdev, void *base) oxu_writel(base, OXU_CHIPIRQEN_SET, OXU_USBSPHLPWUI | OXU_USBOTGLPWUI); } -static int oxu_verify_id(struct platform_device *pdev, void *base) +static int oxu_verify_id(struct platform_device *pdev, void __iomem *base) { u32 id; static const char * const bo[] = { @@ -3685,7 +4125,7 @@ static int oxu_verify_id(struct platform_device *pdev, void *base) static const struct hc_driver oxu_hc_driver; static struct usb_hcd *oxu_create(struct platform_device *pdev, unsigned long memstart, unsigned long memlen, - void *base, int irq, int otg) + void __iomem *base, int irq, int otg) { struct device *dev = &pdev->dev; @@ -3722,7 +4162,7 @@ static struct usb_hcd *oxu_create(struct platform_device *pdev, static int oxu_init(struct platform_device *pdev, unsigned long memstart, unsigned long memlen, - void *base, int irq) + void __iomem *base, int irq) { struct oxu_info *info = platform_get_drvdata(pdev); struct usb_hcd *hcd; @@ -3771,7 +4211,7 @@ error_create_otg: static int oxu_drv_probe(struct platform_device *pdev) { struct resource *res; - void *base; + void __iomem *base; unsigned long memstart, memlen; int irq, ret; struct oxu_info *info; diff --git a/drivers/usb/host/oxu210hp.h b/drivers/usb/host/oxu210hp.h deleted file mode 100644 index 437044147862..000000000000 --- a/drivers/usb/host/oxu210hp.h +++ /dev/null @@ -1,448 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Host interface registers - */ - -#define OXU_DEVICEID 0x00 - #define OXU_REV_MASK 0xffff0000 - #define OXU_REV_SHIFT 16 - #define OXU_REV_2100 0x2100 - #define OXU_BO_SHIFT 8 - #define OXU_BO_MASK (0x3 << OXU_BO_SHIFT) - #define OXU_MAJ_REV_SHIFT 4 - #define OXU_MAJ_REV_MASK (0xf << OXU_MAJ_REV_SHIFT) - #define OXU_MIN_REV_SHIFT 0 - #define OXU_MIN_REV_MASK (0xf << OXU_MIN_REV_SHIFT) -#define OXU_HOSTIFCONFIG 0x04 -#define OXU_SOFTRESET 0x08 - #define OXU_SRESET (1 << 0) - -#define OXU_PIOBURSTREADCTRL 0x0C - -#define OXU_CHIPIRQSTATUS 0x10 -#define OXU_CHIPIRQEN_SET 0x14 -#define OXU_CHIPIRQEN_CLR 0x18 - #define OXU_USBSPHLPWUI 0x00000080 - #define OXU_USBOTGLPWUI 0x00000040 - #define OXU_USBSPHI 0x00000002 - #define OXU_USBOTGI 0x00000001 - -#define OXU_CLKCTRL_SET 0x1C - #define OXU_SYSCLKEN 0x00000008 - #define OXU_USBSPHCLKEN 0x00000002 - #define OXU_USBOTGCLKEN 0x00000001 - -#define OXU_ASO 0x68 - #define OXU_SPHPOEN 0x00000100 - #define OXU_OVRCCURPUPDEN 0x00000800 - #define OXU_ASO_OP (1 << 10) - #define OXU_COMPARATOR 0x000004000 - -#define OXU_USBMODE 0x1A8 - #define OXU_VBPS 0x00000020 - #define OXU_ES_LITTLE 0x00000000 - #define OXU_CM_HOST_ONLY 0x00000003 - -/* - * Proper EHCI structs & defines - */ - -/* Magic numbers that can affect system performance */ -#define EHCI_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */ -#define EHCI_TUNE_RL_HS 4 /* nak throttle; see 4.9 */ -#define EHCI_TUNE_RL_TT 0 -#define EHCI_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */ -#define EHCI_TUNE_MULT_TT 1 -#define EHCI_TUNE_FLS 2 /* (small) 256 frame schedule */ - -struct oxu_hcd; - -/* EHCI register interface, corresponds to EHCI Revision 0.95 specification */ - -/* Section 2.2 Host Controller Capability Registers */ -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. - */ - u32 hc_capbase; -#define HC_LENGTH(p) (((p)>>00)&0x00ff) /* bits 7:0 */ -#define HC_VERSION(p) (((p)>>16)&0xffff) /* bits 31:16 */ - 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 */ -#define HCS_N_CC(p) (((p)>>12)&0xf) /* bits 15:12, #companion HCs */ -#define HCS_N_PCC(p) (((p)>>8)&0xf) /* bits 11:8, ports per CC */ -#define HCS_PORTROUTED(p) ((p)&(1 << 7)) /* true: port routing */ -#define HCS_PPC(p) ((p)&(1 << 4)) /* true: port power control */ -#define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */ - - u32 hcc_params; /* HCCPARAMS - offset 0x8 */ -#define HCC_EXT_CAPS(p) (((p)>>8)&0xff) /* for pci extended caps */ -#define HCC_ISOC_CACHE(p) ((p)&(1 << 7)) /* true: can cache isoc frame */ -#define HCC_ISOC_THRES(p) (((p)>>4)&0x7) /* bits 6:4, uframes cached */ -#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*/ -#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 */ -struct ehci_regs { - /* USBCMD: offset 0x00 */ - u32 command; -/* 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_LRESET (1<<7) /* partial reset (no ports, etc) */ -#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, ...) */ - -#define INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT) - - /* 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 reserved[9]; - - /* CONFIGFLAG: offset 0x40 */ - u32 configured_flag; -#define FLAG_CF (1<<0) /* true: we'll support "high speed" */ - - /* PORTSC: offset 0x44 */ - u32 port_status[0]; /* up to N_PORTS */ -/* 31:23 reserved */ -#define PORT_WKOC_E (1<<22) /* wake on overcurrent (enable) */ -#define PORT_WKDISC_E (1<<21) /* wake on disconnect (enable) */ -#define PORT_WKCONN_E (1<<20) /* wake on connect (enable) */ -/* 19:16 for port testing */ -#define PORT_LED_OFF (0<<14) -#define PORT_LED_AMBER (1<<14) -#define PORT_LED_GREEN (2<<14) -#define PORT_LED_MASK (3<<14) -#define PORT_OWNER (1<<13) /* true: companion hc owns this port */ -#define PORT_POWER (1<<12) /* true: has power (see PPC) */ -#define PORT_USB11(x) (((x)&(3<<10)) == (1<<10)) /* USB 1.1 device */ -/* 11:10 for detecting lowspeed devices (reset vs release ownership) */ -/* 9 reserved */ -#define PORT_RESET (1<<8) /* reset port */ -#define PORT_SUSPEND (1<<7) /* suspend port */ -#define PORT_RESUME (1<<6) /* resume it */ -#define PORT_OCC (1<<5) /* over current change */ -#define PORT_OC (1<<4) /* over current active */ -#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 | PORT_OCC) -} __attribute__ ((packed)); - -/* Appendix C, Debug port ... intended for use with special "debug devices" - * that can help if there's no serial console. (nonstandard enumeration.) - */ -struct ehci_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)) -} __attribute__ ((packed)); - - -#define QTD_NEXT(dma) cpu_to_le32((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 ehci_qtd { - /* first part defined by EHCI spec */ - __le32 hw_next; /* see EHCI 3.5.1 */ - __le32 hw_alt_next; /* see EHCI 3.5.2 */ - __le32 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? */ - __le32 hw_buf[5]; /* see EHCI 3.5.4 */ - __le32 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 */ - - u32 qtd_buffer_len; - void *buffer; - dma_addr_t buffer_dma; - void *transfer_buffer; - void *transfer_dma; -} __attribute__ ((aligned(32))); - -/* mask NakCnt+T in qh->hw_alt_next */ -#define QTD_MASK cpu_to_le32 (~0x1f) - -#define IS_SHORT_READ(token) (QTD_LENGTH(token) != 0 && QTD_PID(token) == 1) - -/* Type tag from {qh, itd, sitd, fstn}->hw_next */ -#define Q_NEXT_TYPE(dma) ((dma) & cpu_to_le32 (3 << 1)) - -/* values for that type tag */ -#define Q_TYPE_QH cpu_to_le32 (1 << 1) - -/* next async queue entry, or pointer to interrupt/periodic QH */ -#define QH_NEXT(dma) (cpu_to_le32(((u32)dma)&~0x01f)|Q_TYPE_QH) - -/* for periodic/async schedules and qtd lists, mark end of list */ -#define EHCI_LIST_END cpu_to_le32(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 ehci_shadow { - struct ehci_qh *qh; /* Q_TYPE_QH */ - __le32 *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. - */ - -struct ehci_qh { - /* first part defined by EHCI spec */ - __le32 hw_next; /* see EHCI 3.6.1 */ - __le32 hw_info1; /* see EHCI 3.6.2 */ -#define QH_HEAD 0x00008000 - __le32 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 - __le32 hw_current; /* qtd list - see EHCI 3.6.4 */ - - /* qtd overlay (hardware parts of a struct ehci_qtd) */ - __le32 hw_qtd_next; - __le32 hw_alt_next; - __le32 hw_token; - __le32 hw_buf[5]; - __le32 hw_buf_hi[5]; - - /* the rest is HCD-private */ - dma_addr_t qh_dma; /* address of qh */ - union ehci_shadow qh_next; /* ptr to qh; or periodic */ - struct list_head qtd_list; /* sw qtd list */ - struct ehci_qtd *dummy; - struct ehci_qh *reclaim; /* next to reclaim */ - - struct oxu_hcd *oxu; - struct kref kref; - unsigned stamp; - - 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 reclaim q */ -#define QH_STATE_COMPLETING 5 /* don't touch token.HALT */ - - /* 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 */ -} __attribute__ ((aligned(32))); - -/* - * Proper OXU210HP structs - */ - -#define OXU_OTG_CORE_OFFSET 0x00400 -#define OXU_OTG_CAP_OFFSET (OXU_OTG_CORE_OFFSET + 0x100) -#define OXU_SPH_CORE_OFFSET 0x00800 -#define OXU_SPH_CAP_OFFSET (OXU_SPH_CORE_OFFSET + 0x100) - -#define OXU_OTG_MEM 0xE000 -#define OXU_SPH_MEM 0x16000 - -/* Only how many elements & element structure are specifies here. */ -/* 2 host controllers are enabled - total size <= 28 kbytes */ -#define DEFAULT_I_TDPS 1024 -#define QHEAD_NUM 16 -#define QTD_NUM 32 -#define SITD_NUM 8 -#define MURB_NUM 8 - -#define BUFFER_NUM 8 -#define BUFFER_SIZE 512 - -struct oxu_info { - struct usb_hcd *hcd[2]; -}; - -struct oxu_buf { - u8 buffer[BUFFER_SIZE]; -} __attribute__ ((aligned(BUFFER_SIZE))); - -struct oxu_onchip_mem { - struct oxu_buf db_pool[BUFFER_NUM]; - - u32 frame_list[DEFAULT_I_TDPS]; - struct ehci_qh qh_pool[QHEAD_NUM]; - struct ehci_qtd qtd_pool[QTD_NUM]; -} __attribute__ ((aligned(4 << 10))); - -#define EHCI_MAX_ROOT_PORTS 15 /* see HCS_N_PORTS */ - -struct oxu_murb { - struct urb urb; - struct urb *main; - u8 last; -}; - -struct oxu_hcd { /* one per controller */ - unsigned int is_otg:1; - - u8 qh_used[QHEAD_NUM]; - u8 qtd_used[QTD_NUM]; - u8 db_used[BUFFER_NUM]; - u8 murb_used[MURB_NUM]; - - struct oxu_onchip_mem __iomem *mem; - spinlock_t mem_lock; - - struct timer_list urb_timer; - - struct ehci_caps __iomem *caps; - struct ehci_regs __iomem *regs; - - __u32 hcs_params; /* cached register copy */ - spinlock_t lock; - - /* async schedule support */ - struct ehci_qh *async; - struct ehci_qh *reclaim; - unsigned reclaim_ready:1; - unsigned scanning:1; - - /* periodic schedule support */ - unsigned periodic_size; - __le32 *periodic; /* hw periodic table */ - dma_addr_t periodic_dma; - unsigned i_thresh; /* uframes HC might cache */ - - union ehci_shadow *pshadow; /* mirror hw periodic table */ - int next_uframe; /* scan periodic, start here */ - unsigned periodic_sched; /* periodic activity count */ - - /* per root hub port */ - unsigned long reset_done[EHCI_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 - */ - - struct timer_list watchdog; - unsigned long actions; - unsigned stamp; - unsigned long next_statechange; - u32 command; - - /* SILICON QUIRKS */ - struct list_head urb_list; /* this is the head to urb - * queue that didn't get enough - * resources - */ - struct oxu_murb *murb_pool; /* murb per split big urb */ - unsigned urb_len; - - u8 sbrn; /* packed release number */ -}; - -#define EHCI_IAA_JIFFIES (HZ/100) /* arbitrary; ~10 msec */ -#define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */ -#define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */ -#define EHCI_SHRINK_JIFFIES (HZ/200) /* async qh unlink delay */ - -enum ehci_timer_action { - TIMER_IO_WATCHDOG, - TIMER_IAA_WATCHDOG, - TIMER_ASYNC_SHRINK, - TIMER_ASYNC_OFF, -}; - -#include <linux/oxu210hp.h> diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index f6d04491df60..beb2efa71341 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -728,7 +728,7 @@ static void quirk_usb_handoff_uhci(struct pci_dev *pdev) if (!pio_enabled(pdev)) return; - for (i = 0; i < PCI_ROM_RESOURCE; i++) + for (i = 0; i < PCI_STD_NUM_BARS; i++) if ((pci_resource_flags(pdev, i) & IORESOURCE_IO)) { base = pci_resource_start(pdev, i); break; @@ -1150,7 +1150,7 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev) if (!mmio_resource_enabled(pdev, 0)) return; - base = ioremap_nocache(pci_resource_start(pdev, 0), len); + base = ioremap(pci_resource_start(pdev, 0), len); if (base == NULL) return; diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 42668aeca57c..0c03ac6b0213 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -2411,12 +2411,6 @@ static int r8a66597_probe(struct platform_device *pdev) if (usb_disabled()) return -ENODEV; - if (pdev->dev.dma_mask) { - ret = -EINVAL; - dev_err(&pdev->dev, "dma not supported\n"); - goto clean_up; - } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { ret = -ENODEV; diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 5b061e599948..72a34a1eb618 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1632,12 +1632,6 @@ sl811h_probe(struct platform_device *dev) irq = ires->start; irqflags = ires->flags & IRQF_TRIGGER_MASK; - /* refuse to confuse usbcore */ - if (dev->dev.dma_mask) { - dev_dbg(&dev->dev, "no we won't dma\n"); - return -EINVAL; - } - /* the chip may be wired for either kind of addressing */ addr = platform_get_resource(dev, IORESOURCE_MEM, 0); data = platform_get_resource(dev, IORESOURCE_MEM, 1); diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 400c40bc43a6..e9209e3e6248 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -71,7 +71,7 @@ INT_MODULE_PARM(testing, 0); /* Some boards misreport power switching/overcurrent*/ static bool distrust_firmware = true; module_param(distrust_firmware, bool, 0); -MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" +MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurrent" "t setup"); static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); /* @@ -3077,8 +3077,6 @@ static int u132_probe(struct platform_device *pdev) retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); if (retval) return retval; - if (pdev->dev.dma_mask) - return -EINVAL; hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { diff --git a/drivers/usb/host/uhci-grlib.c b/drivers/usb/host/uhci-grlib.c index 2103b1ed0f8f..0a201a73b196 100644 --- a/drivers/usb/host/uhci-grlib.c +++ b/drivers/usb/host/uhci-grlib.c @@ -63,7 +63,7 @@ static const struct hc_driver uhci_grlib_hc_driver = { /* Generic hardware linkage */ .irq = uhci_irq, - .flags = HCD_MEMORY | HCD_USB11, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB11, /* Basic lifecycle operations */ .reset = uhci_grlib_init, diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c index 0dd944277c99..0fa3d72bae26 100644 --- a/drivers/usb/host/uhci-pci.c +++ b/drivers/usb/host/uhci-pci.c @@ -261,7 +261,7 @@ static const struct hc_driver uhci_driver = { /* Generic hardware linkage */ .irq = uhci_irq, - .flags = HCD_USB11, + .flags = HCD_DMA | HCD_USB11, /* Basic lifecycle operations */ .reset = uhci_pci_init, diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c index 89700e26fb29..70dbd95c3f06 100644 --- a/drivers/usb/host/uhci-platform.c +++ b/drivers/usb/host/uhci-platform.c @@ -41,7 +41,7 @@ static const struct hc_driver uhci_platform_hc_driver = { /* Generic hardware linkage */ .irq = uhci_irq, - .flags = HCD_MEMORY | HCD_USB11, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB11, /* Basic lifecycle operations */ .reset = uhci_platform_init, diff --git a/drivers/usb/host/whci/Makefile b/drivers/usb/host/whci/Makefile deleted file mode 100644 index 859d20079df6..000000000000 --- a/drivers/usb/host/whci/Makefile +++ /dev/null @@ -1,14 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 - -obj-$(CONFIG_USB_WHCI_HCD) += whci-hcd.o - -whci-hcd-y := \ - asl.o \ - debug.o \ - hcd.o \ - hw.o \ - init.o \ - int.o \ - pzl.o \ - qset.o \ - wusb.o diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c deleted file mode 100644 index 276fb34c8efd..000000000000 --- a/drivers/usb/host/whci/asl.c +++ /dev/null @@ -1,376 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) asynchronous schedule management. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#include <linux/kernel.h> -#include <linux/gfp.h> -#include <linux/dma-mapping.h> -#include <linux/uwb/umc.h> -#include <linux/usb.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -static void qset_get_next_prev(struct whc *whc, struct whc_qset *qset, - struct whc_qset **next, struct whc_qset **prev) -{ - struct list_head *n, *p; - - BUG_ON(list_empty(&whc->async_list)); - - n = qset->list_node.next; - if (n == &whc->async_list) - n = n->next; - p = qset->list_node.prev; - if (p == &whc->async_list) - p = p->prev; - - *next = container_of(n, struct whc_qset, list_node); - *prev = container_of(p, struct whc_qset, list_node); - -} - -static void asl_qset_insert_begin(struct whc *whc, struct whc_qset *qset) -{ - list_move(&qset->list_node, &whc->async_list); - qset->in_sw_list = true; -} - -static void asl_qset_insert(struct whc *whc, struct whc_qset *qset) -{ - struct whc_qset *next, *prev; - - qset_clear(whc, qset); - - /* Link into ASL. */ - qset_get_next_prev(whc, qset, &next, &prev); - whc_qset_set_link_ptr(&qset->qh.link, next->qset_dma); - whc_qset_set_link_ptr(&prev->qh.link, qset->qset_dma); - qset->in_hw_list = true; -} - -static void asl_qset_remove(struct whc *whc, struct whc_qset *qset) -{ - struct whc_qset *prev, *next; - - qset_get_next_prev(whc, qset, &next, &prev); - - list_move(&qset->list_node, &whc->async_removed_list); - qset->in_sw_list = false; - - /* - * No more qsets in the ASL? The caller must stop the ASL as - * it's no longer valid. - */ - if (list_empty(&whc->async_list)) - return; - - /* Remove from ASL. */ - whc_qset_set_link_ptr(&prev->qh.link, next->qset_dma); - qset->in_hw_list = false; -} - -/** - * process_qset - process any recently inactivated or halted qTDs in a - * qset. - * - * After inactive qTDs are removed, new qTDs can be added if the - * urb queue still contains URBs. - * - * Returns any additional WUSBCMD bits for the ASL sync command (i.e., - * WUSBCMD_ASYNC_QSET_RM if a halted qset was removed). - */ -static uint32_t process_qset(struct whc *whc, struct whc_qset *qset) -{ - enum whc_update update = 0; - uint32_t status = 0; - - while (qset->ntds) { - struct whc_qtd *td; - - td = &qset->qtd[qset->td_start]; - status = le32_to_cpu(td->status); - - /* - * Nothing to do with a still active qTD. - */ - if (status & QTD_STS_ACTIVE) - break; - - if (status & QTD_STS_HALTED) { - /* Ug, an error. */ - process_halted_qtd(whc, qset, td); - /* A halted qTD always triggers an update - because the qset was either removed or - reactivated. */ - update |= WHC_UPDATE_UPDATED; - goto done; - } - - /* Mmm, a completed qTD. */ - process_inactive_qtd(whc, qset, td); - } - - if (!qset->remove) - update |= qset_add_qtds(whc, qset); - -done: - /* - * Remove this qset from the ASL if requested, but only if has - * no qTDs. - */ - if (qset->remove && qset->ntds == 0) { - asl_qset_remove(whc, qset); - update |= WHC_UPDATE_REMOVED; - } - return update; -} - -void asl_start(struct whc *whc) -{ - struct whc_qset *qset; - - qset = list_first_entry(&whc->async_list, struct whc_qset, list_node); - - le_writeq(qset->qset_dma | QH_LINK_NTDS(8), whc->base + WUSBASYNCLISTADDR); - - whc_write_wusbcmd(whc, WUSBCMD_ASYNC_EN, WUSBCMD_ASYNC_EN); - whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, - WUSBSTS_ASYNC_SCHED, WUSBSTS_ASYNC_SCHED, - 1000, "start ASL"); -} - -void asl_stop(struct whc *whc) -{ - whc_write_wusbcmd(whc, WUSBCMD_ASYNC_EN, 0); - whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, - WUSBSTS_ASYNC_SCHED, 0, - 1000, "stop ASL"); -} - -/** - * asl_update - request an ASL update and wait for the hardware to be synced - * @whc: the WHCI HC - * @wusbcmd: WUSBCMD value to start the update. - * - * If the WUSB HC is inactive (i.e., the ASL is stopped) then the - * update must be skipped as the hardware may not respond to update - * requests. - */ -void asl_update(struct whc *whc, uint32_t wusbcmd) -{ - struct wusbhc *wusbhc = &whc->wusbhc; - long t; - - mutex_lock(&wusbhc->mutex); - if (wusbhc->active) { - whc_write_wusbcmd(whc, wusbcmd, wusbcmd); - t = wait_event_timeout( - whc->async_list_wq, - (le_readl(whc->base + WUSBCMD) & WUSBCMD_ASYNC_UPDATED) == 0, - msecs_to_jiffies(1000)); - if (t == 0) - whc_hw_error(whc, "ASL update timeout"); - } - mutex_unlock(&wusbhc->mutex); -} - -/** - * scan_async_work - scan the ASL for qsets to process. - * - * Process each qset in the ASL in turn and then signal the WHC that - * the ASL has been updated. - * - * Then start, stop or update the asynchronous schedule as required. - */ -void scan_async_work(struct work_struct *work) -{ - struct whc *whc = container_of(work, struct whc, async_work); - struct whc_qset *qset, *t; - enum whc_update update = 0; - - spin_lock_irq(&whc->lock); - - /* - * Transerve the software list backwards so new qsets can be - * safely inserted into the ASL without making it non-circular. - */ - list_for_each_entry_safe_reverse(qset, t, &whc->async_list, list_node) { - if (!qset->in_hw_list) { - asl_qset_insert(whc, qset); - update |= WHC_UPDATE_ADDED; - } - - update |= process_qset(whc, qset); - } - - spin_unlock_irq(&whc->lock); - - if (update) { - uint32_t wusbcmd = WUSBCMD_ASYNC_UPDATED | WUSBCMD_ASYNC_SYNCED_DB; - if (update & WHC_UPDATE_REMOVED) - wusbcmd |= WUSBCMD_ASYNC_QSET_RM; - asl_update(whc, wusbcmd); - } - - /* - * Now that the ASL is updated, complete the removal of any - * removed qsets. - * - * If the qset was to be reset, do so and reinsert it into the - * ASL if it has pending transfers. - */ - spin_lock_irq(&whc->lock); - - list_for_each_entry_safe(qset, t, &whc->async_removed_list, list_node) { - qset_remove_complete(whc, qset); - if (qset->reset) { - qset_reset(whc, qset); - if (!list_empty(&qset->stds)) { - asl_qset_insert_begin(whc, qset); - queue_work(whc->workqueue, &whc->async_work); - } - } - } - - spin_unlock_irq(&whc->lock); -} - -/** - * asl_urb_enqueue - queue an URB onto the asynchronous list (ASL). - * @whc: the WHCI host controller - * @urb: the URB to enqueue - * @mem_flags: flags for any memory allocations - * - * The qset for the endpoint is obtained and the urb queued on to it. - * - * Work is scheduled to update the hardware's view of the ASL. - */ -int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) -{ - struct whc_qset *qset; - int err; - unsigned long flags; - - spin_lock_irqsave(&whc->lock, flags); - - err = usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb); - if (err < 0) { - spin_unlock_irqrestore(&whc->lock, flags); - return err; - } - - qset = get_qset(whc, urb, GFP_ATOMIC); - if (qset == NULL) - err = -ENOMEM; - else - err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); - if (!err) { - if (!qset->in_sw_list && !qset->remove) - asl_qset_insert_begin(whc, qset); - } else - usb_hcd_unlink_urb_from_ep(&whc->wusbhc.usb_hcd, urb); - - spin_unlock_irqrestore(&whc->lock, flags); - - if (!err) - queue_work(whc->workqueue, &whc->async_work); - - return err; -} - -/** - * asl_urb_dequeue - remove an URB (qset) from the async list. - * @whc: the WHCI host controller - * @urb: the URB to dequeue - * @status: the current status of the URB - * - * URBs that do yet have qTDs can simply be removed from the software - * queue, otherwise the qset must be removed from the ASL so the qTDs - * can be removed. - */ -int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status) -{ - struct whc_urb *wurb = urb->hcpriv; - struct whc_qset *qset = wurb->qset; - struct whc_std *std, *t; - bool has_qtd = false; - int ret; - unsigned long flags; - - spin_lock_irqsave(&whc->lock, flags); - - ret = usb_hcd_check_unlink_urb(&whc->wusbhc.usb_hcd, urb, status); - if (ret < 0) - goto out; - - list_for_each_entry_safe(std, t, &qset->stds, list_node) { - if (std->urb == urb) { - if (std->qtd) - has_qtd = true; - qset_free_std(whc, std); - } else - std->qtd = NULL; /* so this std is re-added when the qset is */ - } - - if (has_qtd) { - asl_qset_remove(whc, qset); - wurb->status = status; - wurb->is_async = true; - queue_work(whc->workqueue, &wurb->dequeue_work); - } else - qset_remove_urb(whc, qset, urb, status); -out: - spin_unlock_irqrestore(&whc->lock, flags); - - return ret; -} - -/** - * asl_qset_delete - delete a qset from the ASL - */ -void asl_qset_delete(struct whc *whc, struct whc_qset *qset) -{ - qset->remove = 1; - queue_work(whc->workqueue, &whc->async_work); - qset_delete(whc, qset); -} - -/** - * asl_init - initialize the asynchronous schedule list - * - * A dummy qset with no qTDs is added to the ASL to simplify removing - * qsets (no need to stop the ASL when the last qset is removed). - */ -int asl_init(struct whc *whc) -{ - struct whc_qset *qset; - - qset = qset_alloc(whc, GFP_KERNEL); - if (qset == NULL) - return -ENOMEM; - - asl_qset_insert_begin(whc, qset); - asl_qset_insert(whc, qset); - - return 0; -} - -/** - * asl_clean_up - free ASL resources - * - * The ASL is stopped and empty except for the dummy qset. - */ -void asl_clean_up(struct whc *whc) -{ - struct whc_qset *qset; - - if (!list_empty(&whc->async_list)) { - qset = list_first_entry(&whc->async_list, struct whc_qset, list_node); - list_del(&qset->list_node); - qset_free(whc, qset); - } -} diff --git a/drivers/usb/host/whci/debug.c b/drivers/usb/host/whci/debug.c deleted file mode 100644 index 8ddfe3f1f693..000000000000 --- a/drivers/usb/host/whci/debug.c +++ /dev/null @@ -1,153 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) debug. - * - * Copyright (C) 2008 Cambridge Silicon Radio Ltd. - */ -#include <linux/slab.h> -#include <linux/kernel.h> -#include <linux/debugfs.h> -#include <linux/seq_file.h> -#include <linux/export.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -struct whc_dbg { - struct dentry *di_f; - struct dentry *asl_f; - struct dentry *pzl_f; -}; - -static void qset_print(struct seq_file *s, struct whc_qset *qset) -{ - static const char *qh_type[] = { - "ctrl", "isoc", "bulk", "intr", "rsvd", "rsvd", "rsvd", "lpintr", }; - struct whc_std *std; - struct urb *urb = NULL; - int i; - - seq_printf(s, "qset %08x", (u32)qset->qset_dma); - if (&qset->list_node == qset->whc->async_list.prev) { - seq_printf(s, " (dummy)\n"); - } else { - seq_printf(s, " ep%d%s-%s maxpkt: %d\n", - qset->qh.info1 & 0x0f, - (qset->qh.info1 >> 4) & 0x1 ? "in" : "out", - qh_type[(qset->qh.info1 >> 5) & 0x7], - (qset->qh.info1 >> 16) & 0xffff); - } - seq_printf(s, " -> %08x\n", (u32)qset->qh.link); - seq_printf(s, " info: %08x %08x %08x\n", - qset->qh.info1, qset->qh.info2, qset->qh.info3); - seq_printf(s, " sts: %04x errs: %d curwin: %08x\n", - qset->qh.status, qset->qh.err_count, qset->qh.cur_window); - seq_printf(s, " TD: sts: %08x opts: %08x\n", - qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options); - - for (i = 0; i < WHCI_QSET_TD_MAX; i++) { - seq_printf(s, " %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n", - i == qset->td_start ? 'S' : ' ', - i == qset->td_end ? 'E' : ' ', - i, qset->qtd[i].status, qset->qtd[i].options, - (u32)qset->qtd[i].page_list_ptr); - } - seq_printf(s, " ntds: %d\n", qset->ntds); - list_for_each_entry(std, &qset->stds, list_node) { - if (urb != std->urb) { - urb = std->urb; - seq_printf(s, " urb %p transferred: %d bytes\n", urb, - urb->actual_length); - } - if (std->qtd) - seq_printf(s, " sTD[%td]: %zu bytes @ %08x\n", - std->qtd - &qset->qtd[0], - std->len, std->num_pointers ? - (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); - else - seq_printf(s, " sTD[-]: %zd bytes @ %08x\n", - std->len, std->num_pointers ? - (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); - } -} - -static int di_show(struct seq_file *s, void *p) -{ - struct whc *whc = s->private; - int d; - - for (d = 0; d < whc->n_devices; d++) { - struct di_buf_entry *di = &whc->di_buf[d]; - - seq_printf(s, "DI[%d]\n", d); - seq_printf(s, " availability: %*pb\n", - UWB_NUM_MAS, (unsigned long *)di->availability_info); - seq_printf(s, " %c%c key idx: %d dev addr: %d\n", - (di->addr_sec_info & WHC_DI_SECURE) ? 'S' : ' ', - (di->addr_sec_info & WHC_DI_DISABLE) ? 'D' : ' ', - (di->addr_sec_info & WHC_DI_KEY_IDX_MASK) >> 8, - (di->addr_sec_info & WHC_DI_DEV_ADDR_MASK)); - } - return 0; -} -DEFINE_SHOW_ATTRIBUTE(di); - -static int asl_show(struct seq_file *s, void *p) -{ - struct whc *whc = s->private; - struct whc_qset *qset; - - list_for_each_entry(qset, &whc->async_list, list_node) { - qset_print(s, qset); - } - - return 0; -} -DEFINE_SHOW_ATTRIBUTE(asl); - -static int pzl_show(struct seq_file *s, void *p) -{ - struct whc *whc = s->private; - struct whc_qset *qset; - int period; - - for (period = 0; period < 5; period++) { - seq_printf(s, "Period %d\n", period); - list_for_each_entry(qset, &whc->periodic_list[period], list_node) { - qset_print(s, qset); - } - } - return 0; -} -DEFINE_SHOW_ATTRIBUTE(pzl); - -void whc_dbg_init(struct whc *whc) -{ - if (whc->wusbhc.pal.debugfs_dir == NULL) - return; - - whc->dbg = kzalloc(sizeof(struct whc_dbg), GFP_KERNEL); - if (whc->dbg == NULL) - return; - - whc->dbg->di_f = debugfs_create_file("di", 0444, - whc->wusbhc.pal.debugfs_dir, whc, - &di_fops); - whc->dbg->asl_f = debugfs_create_file("asl", 0444, - whc->wusbhc.pal.debugfs_dir, whc, - &asl_fops); - whc->dbg->pzl_f = debugfs_create_file("pzl", 0444, - whc->wusbhc.pal.debugfs_dir, whc, - &pzl_fops); -} - -void whc_dbg_clean_up(struct whc *whc) -{ - if (whc->dbg) { - debugfs_remove(whc->dbg->pzl_f); - debugfs_remove(whc->dbg->asl_f); - debugfs_remove(whc->dbg->di_f); - kfree(whc->dbg); - } -} diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c deleted file mode 100644 index 8af9dcfea127..000000000000 --- a/drivers/usb/host/whci/hcd.c +++ /dev/null @@ -1,356 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) driver. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/uwb/umc.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -/* - * One time initialization. - * - * Nothing to do here. - */ -static int whc_reset(struct usb_hcd *usb_hcd) -{ - return 0; -} - -/* - * Start the wireless host controller. - * - * Start device notification. - * - * Put hc into run state, set DNTS parameters. - */ -static int whc_start(struct usb_hcd *usb_hcd) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct whc *whc = wusbhc_to_whc(wusbhc); - u8 bcid; - int ret; - - mutex_lock(&wusbhc->mutex); - - le_writel(WUSBINTR_GEN_CMD_DONE - | WUSBINTR_HOST_ERR - | WUSBINTR_ASYNC_SCHED_SYNCED - | WUSBINTR_DNTS_INT - | WUSBINTR_ERR_INT - | WUSBINTR_INT, - whc->base + WUSBINTR); - - /* set cluster ID */ - bcid = wusb_cluster_id_get(); - ret = whc_set_cluster_id(whc, bcid); - if (ret < 0) - goto out; - wusbhc->cluster_id = bcid; - - /* start HC */ - whc_write_wusbcmd(whc, WUSBCMD_RUN, WUSBCMD_RUN); - - usb_hcd->uses_new_polling = 1; - set_bit(HCD_FLAG_POLL_RH, &usb_hcd->flags); - usb_hcd->state = HC_STATE_RUNNING; - -out: - mutex_unlock(&wusbhc->mutex); - return ret; -} - - -/* - * Stop the wireless host controller. - * - * Stop device notification. - * - * Wait for pending transfer to stop? Put hc into stop state? - */ -static void whc_stop(struct usb_hcd *usb_hcd) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct whc *whc = wusbhc_to_whc(wusbhc); - - mutex_lock(&wusbhc->mutex); - - /* stop HC */ - le_writel(0, whc->base + WUSBINTR); - whc_write_wusbcmd(whc, WUSBCMD_RUN, 0); - whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, - WUSBSTS_HCHALTED, WUSBSTS_HCHALTED, - 100, "HC to halt"); - - wusb_cluster_id_put(wusbhc->cluster_id); - - mutex_unlock(&wusbhc->mutex); -} - -static int whc_get_frame_number(struct usb_hcd *usb_hcd) -{ - /* Frame numbers are not applicable to WUSB. */ - return -ENOSYS; -} - - -/* - * Queue an URB to the ASL or PZL - */ -static int whc_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, - gfp_t mem_flags) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct whc *whc = wusbhc_to_whc(wusbhc); - int ret; - - switch (usb_pipetype(urb->pipe)) { - case PIPE_INTERRUPT: - ret = pzl_urb_enqueue(whc, urb, mem_flags); - break; - case PIPE_ISOCHRONOUS: - dev_err(&whc->umc->dev, "isochronous transfers unsupported\n"); - ret = -ENOTSUPP; - break; - case PIPE_CONTROL: - case PIPE_BULK: - default: - ret = asl_urb_enqueue(whc, urb, mem_flags); - break; - } - - return ret; -} - -/* - * Remove a queued URB from the ASL or PZL. - */ -static int whc_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, int status) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct whc *whc = wusbhc_to_whc(wusbhc); - int ret; - - switch (usb_pipetype(urb->pipe)) { - case PIPE_INTERRUPT: - ret = pzl_urb_dequeue(whc, urb, status); - break; - case PIPE_ISOCHRONOUS: - ret = -ENOTSUPP; - break; - case PIPE_CONTROL: - case PIPE_BULK: - default: - ret = asl_urb_dequeue(whc, urb, status); - break; - } - - return ret; -} - -/* - * Wait for all URBs to the endpoint to be completed, then delete the - * qset. - */ -static void whc_endpoint_disable(struct usb_hcd *usb_hcd, - struct usb_host_endpoint *ep) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct whc *whc = wusbhc_to_whc(wusbhc); - struct whc_qset *qset; - - qset = ep->hcpriv; - if (qset) { - ep->hcpriv = NULL; - if (usb_endpoint_xfer_bulk(&ep->desc) - || usb_endpoint_xfer_control(&ep->desc)) - asl_qset_delete(whc, qset); - else - pzl_qset_delete(whc, qset); - } -} - -static void whc_endpoint_reset(struct usb_hcd *usb_hcd, - struct usb_host_endpoint *ep) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct whc *whc = wusbhc_to_whc(wusbhc); - struct whc_qset *qset; - unsigned long flags; - - spin_lock_irqsave(&whc->lock, flags); - - qset = ep->hcpriv; - if (qset) { - qset->remove = 1; - qset->reset = 1; - - if (usb_endpoint_xfer_bulk(&ep->desc) - || usb_endpoint_xfer_control(&ep->desc)) - queue_work(whc->workqueue, &whc->async_work); - else - queue_work(whc->workqueue, &whc->periodic_work); - } - - spin_unlock_irqrestore(&whc->lock, flags); -} - - -static const struct hc_driver whc_hc_driver = { - .description = "whci-hcd", - .product_desc = "Wireless host controller", - .hcd_priv_size = sizeof(struct whc) - sizeof(struct usb_hcd), - .irq = whc_int_handler, - .flags = HCD_USB2, - - .reset = whc_reset, - .start = whc_start, - .stop = whc_stop, - .get_frame_number = whc_get_frame_number, - .urb_enqueue = whc_urb_enqueue, - .urb_dequeue = whc_urb_dequeue, - .endpoint_disable = whc_endpoint_disable, - .endpoint_reset = whc_endpoint_reset, - - .hub_status_data = wusbhc_rh_status_data, - .hub_control = wusbhc_rh_control, - .start_port_reset = wusbhc_rh_start_port_reset, -}; - -static int whc_probe(struct umc_dev *umc) -{ - int ret; - struct usb_hcd *usb_hcd; - struct wusbhc *wusbhc; - struct whc *whc; - struct device *dev = &umc->dev; - - usb_hcd = usb_create_hcd(&whc_hc_driver, dev, "whci"); - if (usb_hcd == NULL) { - dev_err(dev, "unable to create hcd\n"); - return -ENOMEM; - } - - usb_hcd->wireless = 1; - usb_hcd->self.sg_tablesize = 2048; /* somewhat arbitrary */ - - wusbhc = usb_hcd_to_wusbhc(usb_hcd); - whc = wusbhc_to_whc(wusbhc); - whc->umc = umc; - - ret = whc_init(whc); - if (ret) - goto error_whc_init; - - wusbhc->dev = dev; - wusbhc->uwb_rc = uwb_rc_get_by_grandpa(umc->dev.parent); - if (!wusbhc->uwb_rc) { - ret = -ENODEV; - dev_err(dev, "cannot get radio controller\n"); - goto error_uwb_rc; - } - - if (whc->n_devices > USB_MAXCHILDREN) { - dev_warn(dev, "USB_MAXCHILDREN too low for WUSB adapter (%u ports)\n", - whc->n_devices); - wusbhc->ports_max = USB_MAXCHILDREN; - } else - wusbhc->ports_max = whc->n_devices; - wusbhc->mmcies_max = whc->n_mmc_ies; - wusbhc->start = whc_wusbhc_start; - wusbhc->stop = whc_wusbhc_stop; - wusbhc->mmcie_add = whc_mmcie_add; - wusbhc->mmcie_rm = whc_mmcie_rm; - wusbhc->dev_info_set = whc_dev_info_set; - wusbhc->bwa_set = whc_bwa_set; - wusbhc->set_num_dnts = whc_set_num_dnts; - wusbhc->set_ptk = whc_set_ptk; - wusbhc->set_gtk = whc_set_gtk; - - ret = wusbhc_create(wusbhc); - if (ret) - goto error_wusbhc_create; - - ret = usb_add_hcd(usb_hcd, whc->umc->irq, IRQF_SHARED); - if (ret) { - dev_err(dev, "cannot add HCD: %d\n", ret); - goto error_usb_add_hcd; - } - device_wakeup_enable(usb_hcd->self.controller); - - ret = wusbhc_b_create(wusbhc); - if (ret) { - dev_err(dev, "WUSBHC phase B setup failed: %d\n", ret); - goto error_wusbhc_b_create; - } - - whc_dbg_init(whc); - - return 0; - -error_wusbhc_b_create: - usb_remove_hcd(usb_hcd); -error_usb_add_hcd: - wusbhc_destroy(wusbhc); -error_wusbhc_create: - uwb_rc_put(wusbhc->uwb_rc); -error_uwb_rc: - whc_clean_up(whc); -error_whc_init: - usb_put_hcd(usb_hcd); - return ret; -} - - -static void whc_remove(struct umc_dev *umc) -{ - struct usb_hcd *usb_hcd = dev_get_drvdata(&umc->dev); - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); - struct whc *whc = wusbhc_to_whc(wusbhc); - - if (usb_hcd) { - whc_dbg_clean_up(whc); - wusbhc_b_destroy(wusbhc); - usb_remove_hcd(usb_hcd); - wusbhc_destroy(wusbhc); - uwb_rc_put(wusbhc->uwb_rc); - whc_clean_up(whc); - usb_put_hcd(usb_hcd); - } -} - -static struct umc_driver whci_hc_driver = { - .name = "whci-hcd", - .cap_id = UMC_CAP_ID_WHCI_WUSB_HC, - .probe = whc_probe, - .remove = whc_remove, -}; - -static int __init whci_hc_driver_init(void) -{ - return umc_driver_register(&whci_hc_driver); -} -module_init(whci_hc_driver_init); - -static void __exit whci_hc_driver_exit(void) -{ - umc_driver_unregister(&whci_hc_driver); -} -module_exit(whci_hc_driver_exit); - -/* PCI device ID's that we handle (so it gets loaded) */ -static struct pci_device_id __used whci_hcd_id_table[] = { - { PCI_DEVICE_CLASS(PCI_CLASS_WIRELESS_WHCI, ~0) }, - { /* empty last entry */ } -}; -MODULE_DEVICE_TABLE(pci, whci_hcd_id_table); - -MODULE_DESCRIPTION("WHCI Wireless USB host controller driver"); -MODULE_AUTHOR("Cambridge Silicon Radio Ltd."); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/whci/hw.c b/drivers/usb/host/whci/hw.c deleted file mode 100644 index 22b3b7f7419d..000000000000 --- a/drivers/usb/host/whci/hw.c +++ /dev/null @@ -1,93 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) hardware access helpers. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#include <linux/kernel.h> -#include <linux/dma-mapping.h> -#include <linux/uwb/umc.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val) -{ - unsigned long flags; - u32 cmd; - - spin_lock_irqsave(&whc->lock, flags); - - cmd = le_readl(whc->base + WUSBCMD); - cmd = (cmd & ~mask) | val; - le_writel(cmd, whc->base + WUSBCMD); - - spin_unlock_irqrestore(&whc->lock, flags); -} - -/** - * whc_do_gencmd - start a generic command via the WUSBGENCMDSTS register - * @whc: the WHCI HC - * @cmd: command to start. - * @params: parameters for the command (the WUSBGENCMDPARAMS register value). - * @addr: pointer to any data for the command (may be NULL). - * @len: length of the data (if any). - */ -int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len) -{ - unsigned long flags; - dma_addr_t dma_addr; - int t; - int ret = 0; - - mutex_lock(&whc->mutex); - - /* Wait for previous command to complete. */ - t = wait_event_timeout(whc->cmd_wq, - (le_readl(whc->base + WUSBGENCMDSTS) & WUSBGENCMDSTS_ACTIVE) == 0, - WHC_GENCMD_TIMEOUT_MS); - if (t == 0) { - dev_err(&whc->umc->dev, "generic command timeout (%04x/%04x)\n", - le_readl(whc->base + WUSBGENCMDSTS), - le_readl(whc->base + WUSBGENCMDPARAMS)); - ret = -ETIMEDOUT; - goto out; - } - - if (addr) { - memcpy(whc->gen_cmd_buf, addr, len); - dma_addr = whc->gen_cmd_buf_dma; - } else - dma_addr = 0; - - /* Poke registers to start cmd. */ - spin_lock_irqsave(&whc->lock, flags); - - le_writel(params, whc->base + WUSBGENCMDPARAMS); - le_writeq(dma_addr, whc->base + WUSBGENADDR); - - le_writel(WUSBGENCMDSTS_ACTIVE | WUSBGENCMDSTS_IOC | cmd, - whc->base + WUSBGENCMDSTS); - - spin_unlock_irqrestore(&whc->lock, flags); -out: - mutex_unlock(&whc->mutex); - - return ret; -} - -/** - * whc_hw_error - recover from a hardware error - * @whc: the WHCI HC that broke. - * @reason: a description of the failure. - * - * Recover from broken hardware with a full reset. - */ -void whc_hw_error(struct whc *whc, const char *reason) -{ - struct wusbhc *wusbhc = &whc->wusbhc; - - dev_err(&whc->umc->dev, "hardware error: %s\n", reason); - wusbhc_reset_all(wusbhc); -} diff --git a/drivers/usb/host/whci/init.c b/drivers/usb/host/whci/init.c deleted file mode 100644 index 82416973f773..000000000000 --- a/drivers/usb/host/whci/init.c +++ /dev/null @@ -1,177 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) initialization. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#include <linux/kernel.h> -#include <linux/gfp.h> -#include <linux/dma-mapping.h> -#include <linux/uwb/umc.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -/* - * Reset the host controller. - */ -static void whc_hw_reset(struct whc *whc) -{ - le_writel(WUSBCMD_WHCRESET, whc->base + WUSBCMD); - whci_wait_for(&whc->umc->dev, whc->base + WUSBCMD, WUSBCMD_WHCRESET, 0, - 100, "reset"); -} - -static void whc_hw_init_di_buf(struct whc *whc) -{ - int d; - - /* Disable all entries in the Device Information buffer. */ - for (d = 0; d < whc->n_devices; d++) - whc->di_buf[d].addr_sec_info = WHC_DI_DISABLE; - - le_writeq(whc->di_buf_dma, whc->base + WUSBDEVICEINFOADDR); -} - -static void whc_hw_init_dn_buf(struct whc *whc) -{ - /* Clear the Device Notification buffer to ensure the V (valid) - * bits are clear. */ - memset(whc->dn_buf, 0, 4096); - - le_writeq(whc->dn_buf_dma, whc->base + WUSBDNTSBUFADDR); -} - -int whc_init(struct whc *whc) -{ - u32 whcsparams; - int ret, i; - resource_size_t start, len; - - spin_lock_init(&whc->lock); - mutex_init(&whc->mutex); - init_waitqueue_head(&whc->cmd_wq); - init_waitqueue_head(&whc->async_list_wq); - init_waitqueue_head(&whc->periodic_list_wq); - whc->workqueue = alloc_ordered_workqueue(dev_name(&whc->umc->dev), 0); - if (whc->workqueue == NULL) { - ret = -ENOMEM; - goto error; - } - INIT_WORK(&whc->dn_work, whc_dn_work); - - INIT_WORK(&whc->async_work, scan_async_work); - INIT_LIST_HEAD(&whc->async_list); - INIT_LIST_HEAD(&whc->async_removed_list); - - INIT_WORK(&whc->periodic_work, scan_periodic_work); - for (i = 0; i < 5; i++) - INIT_LIST_HEAD(&whc->periodic_list[i]); - INIT_LIST_HEAD(&whc->periodic_removed_list); - - /* Map HC registers. */ - start = whc->umc->resource.start; - len = whc->umc->resource.end - start + 1; - if (!request_mem_region(start, len, "whci-hc")) { - dev_err(&whc->umc->dev, "can't request HC region\n"); - ret = -EBUSY; - goto error; - } - whc->base_phys = start; - whc->base = ioremap(start, len); - if (!whc->base) { - dev_err(&whc->umc->dev, "ioremap\n"); - ret = -ENOMEM; - goto error; - } - - whc_hw_reset(whc); - - /* Read maximum number of devices, keys and MMC IEs. */ - whcsparams = le_readl(whc->base + WHCSPARAMS); - whc->n_devices = WHCSPARAMS_TO_N_DEVICES(whcsparams); - whc->n_keys = WHCSPARAMS_TO_N_KEYS(whcsparams); - whc->n_mmc_ies = WHCSPARAMS_TO_N_MMC_IES(whcsparams); - - dev_dbg(&whc->umc->dev, "N_DEVICES = %d, N_KEYS = %d, N_MMC_IES = %d\n", - whc->n_devices, whc->n_keys, whc->n_mmc_ies); - - whc->qset_pool = dma_pool_create("qset", &whc->umc->dev, - sizeof(struct whc_qset), 64, 0); - if (whc->qset_pool == NULL) { - ret = -ENOMEM; - goto error; - } - - ret = asl_init(whc); - if (ret < 0) - goto error; - ret = pzl_init(whc); - if (ret < 0) - goto error; - - /* Allocate and initialize a buffer for generic commands, the - Device Information buffer, and the Device Notification - buffer. */ - - whc->gen_cmd_buf = dma_alloc_coherent(&whc->umc->dev, WHC_GEN_CMD_DATA_LEN, - &whc->gen_cmd_buf_dma, GFP_KERNEL); - if (whc->gen_cmd_buf == NULL) { - ret = -ENOMEM; - goto error; - } - - whc->dn_buf = dma_alloc_coherent(&whc->umc->dev, - sizeof(struct dn_buf_entry) * WHC_N_DN_ENTRIES, - &whc->dn_buf_dma, GFP_KERNEL); - if (!whc->dn_buf) { - ret = -ENOMEM; - goto error; - } - whc_hw_init_dn_buf(whc); - - whc->di_buf = dma_alloc_coherent(&whc->umc->dev, - sizeof(struct di_buf_entry) * whc->n_devices, - &whc->di_buf_dma, GFP_KERNEL); - if (!whc->di_buf) { - ret = -ENOMEM; - goto error; - } - whc_hw_init_di_buf(whc); - - return 0; - -error: - whc_clean_up(whc); - return ret; -} - -void whc_clean_up(struct whc *whc) -{ - resource_size_t len; - - if (whc->di_buf) - dma_free_coherent(&whc->umc->dev, sizeof(struct di_buf_entry) * whc->n_devices, - whc->di_buf, whc->di_buf_dma); - if (whc->dn_buf) - dma_free_coherent(&whc->umc->dev, sizeof(struct dn_buf_entry) * WHC_N_DN_ENTRIES, - whc->dn_buf, whc->dn_buf_dma); - if (whc->gen_cmd_buf) - dma_free_coherent(&whc->umc->dev, WHC_GEN_CMD_DATA_LEN, - whc->gen_cmd_buf, whc->gen_cmd_buf_dma); - - pzl_clean_up(whc); - asl_clean_up(whc); - - dma_pool_destroy(whc->qset_pool); - - len = resource_size(&whc->umc->resource); - if (whc->base) - iounmap(whc->base); - if (whc->base_phys) - release_mem_region(whc->base_phys, len); - - if (whc->workqueue) - destroy_workqueue(whc->workqueue); -} diff --git a/drivers/usb/host/whci/int.c b/drivers/usb/host/whci/int.c deleted file mode 100644 index 7e4ad1b8f3e3..000000000000 --- a/drivers/usb/host/whci/int.c +++ /dev/null @@ -1,82 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) interrupt handling. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#include <linux/kernel.h> -#include <linux/uwb/umc.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -static void transfer_done(struct whc *whc) -{ - queue_work(whc->workqueue, &whc->async_work); - queue_work(whc->workqueue, &whc->periodic_work); -} - -irqreturn_t whc_int_handler(struct usb_hcd *hcd) -{ - struct wusbhc *wusbhc = usb_hcd_to_wusbhc(hcd); - struct whc *whc = wusbhc_to_whc(wusbhc); - u32 sts; - - sts = le_readl(whc->base + WUSBSTS); - if (!(sts & WUSBSTS_INT_MASK)) - return IRQ_NONE; - le_writel(sts & WUSBSTS_INT_MASK, whc->base + WUSBSTS); - - if (sts & WUSBSTS_GEN_CMD_DONE) - wake_up(&whc->cmd_wq); - - if (sts & WUSBSTS_HOST_ERR) - dev_err(&whc->umc->dev, "FIXME: host system error\n"); - - if (sts & WUSBSTS_ASYNC_SCHED_SYNCED) - wake_up(&whc->async_list_wq); - - if (sts & WUSBSTS_PERIODIC_SCHED_SYNCED) - wake_up(&whc->periodic_list_wq); - - if (sts & WUSBSTS_DNTS_INT) - queue_work(whc->workqueue, &whc->dn_work); - - /* - * A transfer completed (see [WHCI] section 4.7.1.2 for when - * this occurs). - */ - if (sts & (WUSBSTS_INT | WUSBSTS_ERR_INT)) - transfer_done(whc); - - return IRQ_HANDLED; -} - -static int process_dn_buf(struct whc *whc) -{ - struct wusbhc *wusbhc = &whc->wusbhc; - struct dn_buf_entry *dn; - int processed = 0; - - for (dn = whc->dn_buf; dn < whc->dn_buf + WHC_N_DN_ENTRIES; dn++) { - if (dn->status & WHC_DN_STATUS_VALID) { - wusbhc_handle_dn(wusbhc, dn->src_addr, - (struct wusb_dn_hdr *)dn->dn_data, - dn->msg_size); - dn->status &= ~WHC_DN_STATUS_VALID; - processed++; - } - } - return processed; -} - -void whc_dn_work(struct work_struct *work) -{ - struct whc *whc = container_of(work, struct whc, dn_work); - int processed; - - do { - processed = process_dn_buf(whc); - } while (processed); -} diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c deleted file mode 100644 index ef52aeb02fde..000000000000 --- a/drivers/usb/host/whci/pzl.c +++ /dev/null @@ -1,404 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) periodic schedule management. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#include <linux/kernel.h> -#include <linux/gfp.h> -#include <linux/dma-mapping.h> -#include <linux/uwb/umc.h> -#include <linux/usb.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -static void update_pzl_pointers(struct whc *whc, int period, u64 addr) -{ - switch (period) { - case 0: - whc_qset_set_link_ptr(&whc->pz_list[0], addr); - whc_qset_set_link_ptr(&whc->pz_list[2], addr); - whc_qset_set_link_ptr(&whc->pz_list[4], addr); - whc_qset_set_link_ptr(&whc->pz_list[6], addr); - whc_qset_set_link_ptr(&whc->pz_list[8], addr); - whc_qset_set_link_ptr(&whc->pz_list[10], addr); - whc_qset_set_link_ptr(&whc->pz_list[12], addr); - whc_qset_set_link_ptr(&whc->pz_list[14], addr); - break; - case 1: - whc_qset_set_link_ptr(&whc->pz_list[1], addr); - whc_qset_set_link_ptr(&whc->pz_list[5], addr); - whc_qset_set_link_ptr(&whc->pz_list[9], addr); - whc_qset_set_link_ptr(&whc->pz_list[13], addr); - break; - case 2: - whc_qset_set_link_ptr(&whc->pz_list[3], addr); - whc_qset_set_link_ptr(&whc->pz_list[11], addr); - break; - case 3: - whc_qset_set_link_ptr(&whc->pz_list[7], addr); - break; - case 4: - whc_qset_set_link_ptr(&whc->pz_list[15], addr); - break; - } -} - -/* - * Return the 'period' to use for this qset. The minimum interval for - * the endpoint is used so whatever urbs are submitted the device is - * polled often enough. - */ -static int qset_get_period(struct whc *whc, struct whc_qset *qset) -{ - uint8_t bInterval = qset->ep->desc.bInterval; - - if (bInterval < 6) - bInterval = 6; - if (bInterval > 10) - bInterval = 10; - return bInterval - 6; -} - -static void qset_insert_in_sw_list(struct whc *whc, struct whc_qset *qset) -{ - int period; - - period = qset_get_period(whc, qset); - - qset_clear(whc, qset); - list_move(&qset->list_node, &whc->periodic_list[period]); - qset->in_sw_list = true; -} - -static void pzl_qset_remove(struct whc *whc, struct whc_qset *qset) -{ - list_move(&qset->list_node, &whc->periodic_removed_list); - qset->in_hw_list = false; - qset->in_sw_list = false; -} - -/** - * pzl_process_qset - process any recently inactivated or halted qTDs - * in a qset. - * - * After inactive qTDs are removed, new qTDs can be added if the - * urb queue still contains URBs. - * - * Returns the schedule updates required. - */ -static enum whc_update pzl_process_qset(struct whc *whc, struct whc_qset *qset) -{ - enum whc_update update = 0; - uint32_t status = 0; - - while (qset->ntds) { - struct whc_qtd *td; - - td = &qset->qtd[qset->td_start]; - status = le32_to_cpu(td->status); - - /* - * Nothing to do with a still active qTD. - */ - if (status & QTD_STS_ACTIVE) - break; - - if (status & QTD_STS_HALTED) { - /* Ug, an error. */ - process_halted_qtd(whc, qset, td); - /* A halted qTD always triggers an update - because the qset was either removed or - reactivated. */ - update |= WHC_UPDATE_UPDATED; - goto done; - } - - /* Mmm, a completed qTD. */ - process_inactive_qtd(whc, qset, td); - } - - if (!qset->remove) - update |= qset_add_qtds(whc, qset); - -done: - /* - * If there are no qTDs in this qset, remove it from the PZL. - */ - if (qset->remove && qset->ntds == 0) { - pzl_qset_remove(whc, qset); - update |= WHC_UPDATE_REMOVED; - } - - return update; -} - -/** - * pzl_start - start the periodic schedule - * @whc: the WHCI host controller - * - * The PZL must be valid (e.g., all entries in the list should have - * the T bit set). - */ -void pzl_start(struct whc *whc) -{ - le_writeq(whc->pz_list_dma, whc->base + WUSBPERIODICLISTBASE); - - whc_write_wusbcmd(whc, WUSBCMD_PERIODIC_EN, WUSBCMD_PERIODIC_EN); - whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, - WUSBSTS_PERIODIC_SCHED, WUSBSTS_PERIODIC_SCHED, - 1000, "start PZL"); -} - -/** - * pzl_stop - stop the periodic schedule - * @whc: the WHCI host controller - */ -void pzl_stop(struct whc *whc) -{ - whc_write_wusbcmd(whc, WUSBCMD_PERIODIC_EN, 0); - whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, - WUSBSTS_PERIODIC_SCHED, 0, - 1000, "stop PZL"); -} - -/** - * pzl_update - request a PZL update and wait for the hardware to be synced - * @whc: the WHCI HC - * @wusbcmd: WUSBCMD value to start the update. - * - * If the WUSB HC is inactive (i.e., the PZL is stopped) then the - * update must be skipped as the hardware may not respond to update - * requests. - */ -void pzl_update(struct whc *whc, uint32_t wusbcmd) -{ - struct wusbhc *wusbhc = &whc->wusbhc; - long t; - - mutex_lock(&wusbhc->mutex); - if (wusbhc->active) { - whc_write_wusbcmd(whc, wusbcmd, wusbcmd); - t = wait_event_timeout( - whc->periodic_list_wq, - (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0, - msecs_to_jiffies(1000)); - if (t == 0) - whc_hw_error(whc, "PZL update timeout"); - } - mutex_unlock(&wusbhc->mutex); -} - -static void update_pzl_hw_view(struct whc *whc) -{ - struct whc_qset *qset, *t; - int period; - u64 tmp_qh = 0; - - for (period = 0; period < 5; period++) { - list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) { - whc_qset_set_link_ptr(&qset->qh.link, tmp_qh); - tmp_qh = qset->qset_dma; - qset->in_hw_list = true; - } - update_pzl_pointers(whc, period, tmp_qh); - } -} - -/** - * scan_periodic_work - scan the PZL for qsets to process. - * - * Process each qset in the PZL in turn and then signal the WHC that - * the PZL has been updated. - * - * Then start, stop or update the periodic schedule as required. - */ -void scan_periodic_work(struct work_struct *work) -{ - struct whc *whc = container_of(work, struct whc, periodic_work); - struct whc_qset *qset, *t; - enum whc_update update = 0; - int period; - - spin_lock_irq(&whc->lock); - - for (period = 4; period >= 0; period--) { - list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) { - if (!qset->in_hw_list) - update |= WHC_UPDATE_ADDED; - update |= pzl_process_qset(whc, qset); - } - } - - if (update & (WHC_UPDATE_ADDED | WHC_UPDATE_REMOVED)) - update_pzl_hw_view(whc); - - spin_unlock_irq(&whc->lock); - - if (update) { - uint32_t wusbcmd = WUSBCMD_PERIODIC_UPDATED | WUSBCMD_PERIODIC_SYNCED_DB; - if (update & WHC_UPDATE_REMOVED) - wusbcmd |= WUSBCMD_PERIODIC_QSET_RM; - pzl_update(whc, wusbcmd); - } - - /* - * Now that the PZL is updated, complete the removal of any - * removed qsets. - * - * If the qset was to be reset, do so and reinsert it into the - * PZL if it has pending transfers. - */ - spin_lock_irq(&whc->lock); - - list_for_each_entry_safe(qset, t, &whc->periodic_removed_list, list_node) { - qset_remove_complete(whc, qset); - if (qset->reset) { - qset_reset(whc, qset); - if (!list_empty(&qset->stds)) { - qset_insert_in_sw_list(whc, qset); - queue_work(whc->workqueue, &whc->periodic_work); - } - } - } - - spin_unlock_irq(&whc->lock); -} - -/** - * pzl_urb_enqueue - queue an URB onto the periodic list (PZL) - * @whc: the WHCI host controller - * @urb: the URB to enqueue - * @mem_flags: flags for any memory allocations - * - * The qset for the endpoint is obtained and the urb queued on to it. - * - * Work is scheduled to update the hardware's view of the PZL. - */ -int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) -{ - struct whc_qset *qset; - int err; - unsigned long flags; - - spin_lock_irqsave(&whc->lock, flags); - - err = usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb); - if (err < 0) { - spin_unlock_irqrestore(&whc->lock, flags); - return err; - } - - qset = get_qset(whc, urb, GFP_ATOMIC); - if (qset == NULL) - err = -ENOMEM; - else - err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); - if (!err) { - if (!qset->in_sw_list && !qset->remove) - qset_insert_in_sw_list(whc, qset); - } else - usb_hcd_unlink_urb_from_ep(&whc->wusbhc.usb_hcd, urb); - - spin_unlock_irqrestore(&whc->lock, flags); - - if (!err) - queue_work(whc->workqueue, &whc->periodic_work); - - return err; -} - -/** - * pzl_urb_dequeue - remove an URB (qset) from the periodic list - * @whc: the WHCI host controller - * @urb: the URB to dequeue - * @status: the current status of the URB - * - * URBs that do yet have qTDs can simply be removed from the software - * queue, otherwise the qset must be removed so the qTDs can be safely - * removed. - */ -int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status) -{ - struct whc_urb *wurb = urb->hcpriv; - struct whc_qset *qset = wurb->qset; - struct whc_std *std, *t; - bool has_qtd = false; - int ret; - unsigned long flags; - - spin_lock_irqsave(&whc->lock, flags); - - ret = usb_hcd_check_unlink_urb(&whc->wusbhc.usb_hcd, urb, status); - if (ret < 0) - goto out; - - list_for_each_entry_safe(std, t, &qset->stds, list_node) { - if (std->urb == urb) { - if (std->qtd) - has_qtd = true; - qset_free_std(whc, std); - } else - std->qtd = NULL; /* so this std is re-added when the qset is */ - } - - if (has_qtd) { - pzl_qset_remove(whc, qset); - update_pzl_hw_view(whc); - wurb->status = status; - wurb->is_async = false; - queue_work(whc->workqueue, &wurb->dequeue_work); - } else - qset_remove_urb(whc, qset, urb, status); -out: - spin_unlock_irqrestore(&whc->lock, flags); - - return ret; -} - -/** - * pzl_qset_delete - delete a qset from the PZL - */ -void pzl_qset_delete(struct whc *whc, struct whc_qset *qset) -{ - qset->remove = 1; - queue_work(whc->workqueue, &whc->periodic_work); - qset_delete(whc, qset); -} - -/** - * pzl_init - initialize the periodic zone list - * @whc: the WHCI host controller - */ -int pzl_init(struct whc *whc) -{ - int i; - - whc->pz_list = dma_alloc_coherent(&whc->umc->dev, sizeof(u64) * 16, - &whc->pz_list_dma, GFP_KERNEL); - if (whc->pz_list == NULL) - return -ENOMEM; - - /* Set T bit on all elements in PZL. */ - for (i = 0; i < 16; i++) - whc->pz_list[i] = cpu_to_le64(QH_LINK_NTDS(8) | QH_LINK_T); - - le_writeq(whc->pz_list_dma, whc->base + WUSBPERIODICLISTBASE); - - return 0; -} - -/** - * pzl_clean_up - free PZL resources - * @whc: the WHCI host controller - * - * The PZL is stopped and empty. - */ -void pzl_clean_up(struct whc *whc) -{ - if (whc->pz_list) - dma_free_coherent(&whc->umc->dev, sizeof(u64) * 16, whc->pz_list, - whc->pz_list_dma); -} diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c deleted file mode 100644 index 925166a207aa..000000000000 --- a/drivers/usb/host/whci/qset.c +++ /dev/null @@ -1,831 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) qset management. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#include <linux/kernel.h> -#include <linux/dma-mapping.h> -#include <linux/slab.h> -#include <linux/uwb/umc.h> -#include <linux/usb.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags) -{ - struct whc_qset *qset; - dma_addr_t dma; - - qset = dma_pool_zalloc(whc->qset_pool, mem_flags, &dma); - if (qset == NULL) - return NULL; - - qset->qset_dma = dma; - qset->whc = whc; - - INIT_LIST_HEAD(&qset->list_node); - INIT_LIST_HEAD(&qset->stds); - - return qset; -} - -/** - * qset_fill_qh - fill the static endpoint state in a qset's QHead - * @qset: the qset whose QH needs initializing with static endpoint - * state - * @urb: an urb for a transfer to this endpoint - */ -static void qset_fill_qh(struct whc *whc, struct whc_qset *qset, struct urb *urb) -{ - struct usb_device *usb_dev = urb->dev; - struct wusb_dev *wusb_dev = usb_dev->wusb_dev; - struct usb_wireless_ep_comp_descriptor *epcd; - bool is_out; - uint8_t phy_rate; - - is_out = usb_pipeout(urb->pipe); - - qset->max_packet = le16_to_cpu(urb->ep->desc.wMaxPacketSize); - - epcd = (struct usb_wireless_ep_comp_descriptor *)qset->ep->extra; - if (epcd) { - qset->max_seq = epcd->bMaxSequence; - qset->max_burst = epcd->bMaxBurst; - } else { - qset->max_seq = 2; - qset->max_burst = 1; - } - - /* - * Initial PHY rate is 53.3 Mbit/s for control endpoints or - * the maximum supported by the device for other endpoints - * (unless limited by the user). - */ - if (usb_pipecontrol(urb->pipe)) - phy_rate = UWB_PHY_RATE_53; - else { - uint16_t phy_rates; - - phy_rates = le16_to_cpu(wusb_dev->wusb_cap_descr->wPHYRates); - phy_rate = fls(phy_rates) - 1; - if (phy_rate > whc->wusbhc.phy_rate) - phy_rate = whc->wusbhc.phy_rate; - } - - qset->qh.info1 = cpu_to_le32( - QH_INFO1_EP(usb_pipeendpoint(urb->pipe)) - | (is_out ? QH_INFO1_DIR_OUT : QH_INFO1_DIR_IN) - | usb_pipe_to_qh_type(urb->pipe) - | QH_INFO1_DEV_INFO_IDX(wusb_port_no_to_idx(usb_dev->portnum)) - | QH_INFO1_MAX_PKT_LEN(qset->max_packet) - ); - qset->qh.info2 = cpu_to_le32( - QH_INFO2_BURST(qset->max_burst) - | QH_INFO2_DBP(0) - | QH_INFO2_MAX_COUNT(3) - | QH_INFO2_MAX_RETRY(3) - | QH_INFO2_MAX_SEQ(qset->max_seq - 1) - ); - /* FIXME: where can we obtain these Tx parameters from? Why - * doesn't the chip know what Tx power to use? It knows the Rx - * strength and can presumably guess the Tx power required - * from that? */ - qset->qh.info3 = cpu_to_le32( - QH_INFO3_TX_RATE(phy_rate) - | QH_INFO3_TX_PWR(0) /* 0 == max power */ - ); - - qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1); -} - -/** - * qset_clear - clear fields in a qset so it may be reinserted into a - * schedule. - * - * The sequence number and current window are not cleared (see - * qset_reset()). - */ -void qset_clear(struct whc *whc, struct whc_qset *qset) -{ - qset->td_start = qset->td_end = qset->ntds = 0; - - qset->qh.link = cpu_to_le64(QH_LINK_NTDS(8) | QH_LINK_T); - qset->qh.status = qset->qh.status & QH_STATUS_SEQ_MASK; - qset->qh.err_count = 0; - qset->qh.scratch[0] = 0; - qset->qh.scratch[1] = 0; - qset->qh.scratch[2] = 0; - - memset(&qset->qh.overlay, 0, sizeof(qset->qh.overlay)); - - init_completion(&qset->remove_complete); -} - -/** - * qset_reset - reset endpoint state in a qset. - * - * Clears the sequence number and current window. This qset must not - * be in the ASL or PZL. - */ -void qset_reset(struct whc *whc, struct whc_qset *qset) -{ - qset->reset = 0; - - qset->qh.status &= ~QH_STATUS_SEQ_MASK; - qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1); -} - -/** - * get_qset - get the qset for an async endpoint - * - * A new qset is created if one does not already exist. - */ -struct whc_qset *get_qset(struct whc *whc, struct urb *urb, - gfp_t mem_flags) -{ - struct whc_qset *qset; - - qset = urb->ep->hcpriv; - if (qset == NULL) { - qset = qset_alloc(whc, mem_flags); - if (qset == NULL) - return NULL; - - qset->ep = urb->ep; - urb->ep->hcpriv = qset; - qset_fill_qh(whc, qset, urb); - } - return qset; -} - -void qset_remove_complete(struct whc *whc, struct whc_qset *qset) -{ - qset->remove = 0; - list_del_init(&qset->list_node); - complete(&qset->remove_complete); -} - -/** - * qset_add_qtds - add qTDs for an URB to a qset - * - * Returns true if the list (ASL/PZL) must be updated because (for a - * WHCI 0.95 controller) an activated qTD was pointed to be iCur. - */ -enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset) -{ - struct whc_std *std; - enum whc_update update = 0; - - list_for_each_entry(std, &qset->stds, list_node) { - struct whc_qtd *qtd; - uint32_t status; - - if (qset->ntds >= WHCI_QSET_TD_MAX - || (qset->pause_after_urb && std->urb != qset->pause_after_urb)) - break; - - if (std->qtd) - continue; /* already has a qTD */ - - qtd = std->qtd = &qset->qtd[qset->td_end]; - - /* Fill in setup bytes for control transfers. */ - if (usb_pipecontrol(std->urb->pipe)) - memcpy(qtd->setup, std->urb->setup_packet, 8); - - status = QTD_STS_ACTIVE | QTD_STS_LEN(std->len); - - if (whc_std_last(std) && usb_pipeout(std->urb->pipe)) - status |= QTD_STS_LAST_PKT; - - /* - * For an IN transfer the iAlt field should be set so - * the h/w will automatically advance to the next - * transfer. However, if there are 8 or more TDs - * remaining in this transfer then iAlt cannot be set - * as it could point to somewhere in this transfer. - */ - if (std->ntds_remaining < WHCI_QSET_TD_MAX) { - int ialt; - ialt = (qset->td_end + std->ntds_remaining) % WHCI_QSET_TD_MAX; - status |= QTD_STS_IALT(ialt); - } else if (usb_pipein(std->urb->pipe)) - qset->pause_after_urb = std->urb; - - if (std->num_pointers) - qtd->options = cpu_to_le32(QTD_OPT_IOC); - else - qtd->options = cpu_to_le32(QTD_OPT_IOC | QTD_OPT_SMALL); - qtd->page_list_ptr = cpu_to_le64(std->dma_addr); - - qtd->status = cpu_to_le32(status); - - if (QH_STATUS_TO_ICUR(qset->qh.status) == qset->td_end) - update = WHC_UPDATE_UPDATED; - - if (++qset->td_end >= WHCI_QSET_TD_MAX) - qset->td_end = 0; - qset->ntds++; - } - - return update; -} - -/** - * qset_remove_qtd - remove the first qTD from a qset. - * - * The qTD might be still active (if it's part of a IN URB that - * resulted in a short read) so ensure it's deactivated. - */ -static void qset_remove_qtd(struct whc *whc, struct whc_qset *qset) -{ - qset->qtd[qset->td_start].status = 0; - - if (++qset->td_start >= WHCI_QSET_TD_MAX) - qset->td_start = 0; - qset->ntds--; -} - -static void qset_copy_bounce_to_sg(struct whc *whc, struct whc_std *std) -{ - struct scatterlist *sg; - void *bounce; - size_t remaining, offset; - - bounce = std->bounce_buf; - remaining = std->len; - - sg = std->bounce_sg; - offset = std->bounce_offset; - - while (remaining) { - size_t len; - - len = min(sg->length - offset, remaining); - memcpy(sg_virt(sg) + offset, bounce, len); - - bounce += len; - remaining -= len; - - offset += len; - if (offset >= sg->length) { - sg = sg_next(sg); - offset = 0; - } - } - -} - -/** - * qset_free_std - remove an sTD and free it. - * @whc: the WHCI host controller - * @std: the sTD to remove and free. - */ -void qset_free_std(struct whc *whc, struct whc_std *std) -{ - list_del(&std->list_node); - if (std->bounce_buf) { - bool is_out = usb_pipeout(std->urb->pipe); - dma_addr_t dma_addr; - - if (std->num_pointers) - dma_addr = le64_to_cpu(std->pl_virt[0].buf_ptr); - else - dma_addr = std->dma_addr; - - dma_unmap_single(whc->wusbhc.dev, dma_addr, - std->len, is_out ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - if (!is_out) - qset_copy_bounce_to_sg(whc, std); - kfree(std->bounce_buf); - } - if (std->pl_virt) { - if (!dma_mapping_error(whc->wusbhc.dev, std->dma_addr)) - dma_unmap_single(whc->wusbhc.dev, std->dma_addr, - std->num_pointers * sizeof(struct whc_page_list_entry), - DMA_TO_DEVICE); - kfree(std->pl_virt); - std->pl_virt = NULL; - } - kfree(std); -} - -/** - * qset_remove_qtds - remove an URB's qTDs (and sTDs). - */ -static void qset_remove_qtds(struct whc *whc, struct whc_qset *qset, - struct urb *urb) -{ - struct whc_std *std, *t; - - list_for_each_entry_safe(std, t, &qset->stds, list_node) { - if (std->urb != urb) - break; - if (std->qtd != NULL) - qset_remove_qtd(whc, qset); - qset_free_std(whc, std); - } -} - -/** - * qset_free_stds - free any remaining sTDs for an URB. - */ -static void qset_free_stds(struct whc_qset *qset, struct urb *urb) -{ - struct whc_std *std, *t; - - list_for_each_entry_safe(std, t, &qset->stds, list_node) { - if (std->urb == urb) - qset_free_std(qset->whc, std); - } -} - -static int qset_fill_page_list(struct whc *whc, struct whc_std *std, gfp_t mem_flags) -{ - dma_addr_t dma_addr = std->dma_addr; - dma_addr_t sp, ep; - size_t pl_len; - int p; - - /* Short buffers don't need a page list. */ - if (std->len <= WHCI_PAGE_SIZE) { - std->num_pointers = 0; - return 0; - } - - sp = dma_addr & ~(WHCI_PAGE_SIZE-1); - ep = dma_addr + std->len; - std->num_pointers = DIV_ROUND_UP(ep - sp, WHCI_PAGE_SIZE); - - pl_len = std->num_pointers * sizeof(struct whc_page_list_entry); - std->pl_virt = kmalloc(pl_len, mem_flags); - if (std->pl_virt == NULL) - return -ENOMEM; - std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, pl_len, DMA_TO_DEVICE); - if (dma_mapping_error(whc->wusbhc.dev, std->dma_addr)) { - kfree(std->pl_virt); - return -EFAULT; - } - - for (p = 0; p < std->num_pointers; p++) { - std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr); - dma_addr = (dma_addr + WHCI_PAGE_SIZE) & ~(WHCI_PAGE_SIZE-1); - } - - return 0; -} - -/** - * urb_dequeue_work - executes asl/pzl update and gives back the urb to the system. - */ -static void urb_dequeue_work(struct work_struct *work) -{ - struct whc_urb *wurb = container_of(work, struct whc_urb, dequeue_work); - struct whc_qset *qset = wurb->qset; - struct whc *whc = qset->whc; - unsigned long flags; - - if (wurb->is_async) - asl_update(whc, WUSBCMD_ASYNC_UPDATED - | WUSBCMD_ASYNC_SYNCED_DB - | WUSBCMD_ASYNC_QSET_RM); - else - pzl_update(whc, WUSBCMD_PERIODIC_UPDATED - | WUSBCMD_PERIODIC_SYNCED_DB - | WUSBCMD_PERIODIC_QSET_RM); - - spin_lock_irqsave(&whc->lock, flags); - qset_remove_urb(whc, qset, wurb->urb, wurb->status); - spin_unlock_irqrestore(&whc->lock, flags); -} - -static struct whc_std *qset_new_std(struct whc *whc, struct whc_qset *qset, - struct urb *urb, gfp_t mem_flags) -{ - struct whc_std *std; - - std = kzalloc(sizeof(struct whc_std), mem_flags); - if (std == NULL) - return NULL; - - std->urb = urb; - std->qtd = NULL; - - INIT_LIST_HEAD(&std->list_node); - list_add_tail(&std->list_node, &qset->stds); - - return std; -} - -static int qset_add_urb_sg(struct whc *whc, struct whc_qset *qset, struct urb *urb, - gfp_t mem_flags) -{ - size_t remaining; - struct scatterlist *sg; - int i; - int ntds = 0; - struct whc_std *std = NULL; - struct whc_page_list_entry *new_pl_virt; - dma_addr_t prev_end = 0; - size_t pl_len; - int p = 0; - - remaining = urb->transfer_buffer_length; - - for_each_sg(urb->sg, sg, urb->num_mapped_sgs, i) { - dma_addr_t dma_addr; - size_t dma_remaining; - dma_addr_t sp, ep; - int num_pointers; - - if (remaining == 0) { - break; - } - - dma_addr = sg_dma_address(sg); - dma_remaining = min_t(size_t, sg_dma_len(sg), remaining); - - while (dma_remaining) { - size_t dma_len; - - /* - * We can use the previous std (if it exists) provided that: - * - the previous one ended on a page boundary. - * - the current one begins on a page boundary. - * - the previous one isn't full. - * - * If a new std is needed but the previous one - * was not a whole number of packets then this - * sg list cannot be mapped onto multiple - * qTDs. Return an error and let the caller - * sort it out. - */ - if (!std - || (prev_end & (WHCI_PAGE_SIZE-1)) - || (dma_addr & (WHCI_PAGE_SIZE-1)) - || std->len + WHCI_PAGE_SIZE > QTD_MAX_XFER_SIZE) { - if (std && std->len % qset->max_packet != 0) - return -EINVAL; - std = qset_new_std(whc, qset, urb, mem_flags); - if (std == NULL) { - return -ENOMEM; - } - ntds++; - p = 0; - } - - dma_len = dma_remaining; - - /* - * If the remainder of this element doesn't - * fit in a single qTD, limit the qTD to a - * whole number of packets. This allows the - * remainder to go into the next qTD. - */ - if (std->len + dma_len > QTD_MAX_XFER_SIZE) { - dma_len = (QTD_MAX_XFER_SIZE / qset->max_packet) - * qset->max_packet - std->len; - } - - std->len += dma_len; - std->ntds_remaining = -1; /* filled in later */ - - sp = dma_addr & ~(WHCI_PAGE_SIZE-1); - ep = dma_addr + dma_len; - num_pointers = DIV_ROUND_UP(ep - sp, WHCI_PAGE_SIZE); - std->num_pointers += num_pointers; - - pl_len = std->num_pointers * sizeof(struct whc_page_list_entry); - - new_pl_virt = krealloc(std->pl_virt, pl_len, mem_flags); - if (new_pl_virt == NULL) { - kfree(std->pl_virt); - std->pl_virt = NULL; - return -ENOMEM; - } - std->pl_virt = new_pl_virt; - - for (;p < std->num_pointers; p++) { - std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr); - dma_addr = (dma_addr + WHCI_PAGE_SIZE) & ~(WHCI_PAGE_SIZE-1); - } - - prev_end = dma_addr = ep; - dma_remaining -= dma_len; - remaining -= dma_len; - } - } - - /* Now the number of stds is know, go back and fill in - std->ntds_remaining. */ - list_for_each_entry(std, &qset->stds, list_node) { - if (std->ntds_remaining == -1) { - pl_len = std->num_pointers * sizeof(struct whc_page_list_entry); - std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, - pl_len, DMA_TO_DEVICE); - if (dma_mapping_error(whc->wusbhc.dev, std->dma_addr)) - return -EFAULT; - std->ntds_remaining = ntds--; - } - } - return 0; -} - -/** - * qset_add_urb_sg_linearize - add an urb with sg list, copying the data - * - * If the URB contains an sg list whose elements cannot be directly - * mapped to qTDs then the data must be transferred via bounce - * buffers. - */ -static int qset_add_urb_sg_linearize(struct whc *whc, struct whc_qset *qset, - struct urb *urb, gfp_t mem_flags) -{ - bool is_out = usb_pipeout(urb->pipe); - size_t max_std_len; - size_t remaining; - int ntds = 0; - struct whc_std *std = NULL; - void *bounce = NULL; - struct scatterlist *sg; - int i; - - /* limit maximum bounce buffer to 16 * 3.5 KiB ~= 28 k */ - max_std_len = qset->max_burst * qset->max_packet; - - remaining = urb->transfer_buffer_length; - - for_each_sg(urb->sg, sg, urb->num_mapped_sgs, i) { - size_t len; - size_t sg_remaining; - void *orig; - - if (remaining == 0) { - break; - } - - sg_remaining = min_t(size_t, remaining, sg->length); - orig = sg_virt(sg); - - while (sg_remaining) { - if (!std || std->len == max_std_len) { - std = qset_new_std(whc, qset, urb, mem_flags); - if (std == NULL) - return -ENOMEM; - std->bounce_buf = kmalloc(max_std_len, mem_flags); - if (std->bounce_buf == NULL) - return -ENOMEM; - std->bounce_sg = sg; - std->bounce_offset = orig - sg_virt(sg); - bounce = std->bounce_buf; - ntds++; - } - - len = min(sg_remaining, max_std_len - std->len); - - if (is_out) - memcpy(bounce, orig, len); - - std->len += len; - std->ntds_remaining = -1; /* filled in later */ - - bounce += len; - orig += len; - sg_remaining -= len; - remaining -= len; - } - } - - /* - * For each of the new sTDs, map the bounce buffers, create - * page lists (if necessary), and fill in std->ntds_remaining. - */ - list_for_each_entry(std, &qset->stds, list_node) { - if (std->ntds_remaining != -1) - continue; - - std->dma_addr = dma_map_single(&whc->umc->dev, std->bounce_buf, std->len, - is_out ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - if (dma_mapping_error(&whc->umc->dev, std->dma_addr)) - return -EFAULT; - - if (qset_fill_page_list(whc, std, mem_flags) < 0) - return -ENOMEM; - - std->ntds_remaining = ntds--; - } - - return 0; -} - -/** - * qset_add_urb - add an urb to the qset's queue. - * - * The URB is chopped into sTDs, one for each qTD that will required. - * At least one qTD (and sTD) is required even if the transfer has no - * data (e.g., for some control transfers). - */ -int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, - gfp_t mem_flags) -{ - struct whc_urb *wurb; - int remaining = urb->transfer_buffer_length; - u64 transfer_dma = urb->transfer_dma; - int ntds_remaining; - int ret; - - wurb = kzalloc(sizeof(struct whc_urb), mem_flags); - if (wurb == NULL) - goto err_no_mem; - urb->hcpriv = wurb; - wurb->qset = qset; - wurb->urb = urb; - INIT_WORK(&wurb->dequeue_work, urb_dequeue_work); - - if (urb->num_sgs) { - ret = qset_add_urb_sg(whc, qset, urb, mem_flags); - if (ret == -EINVAL) { - qset_free_stds(qset, urb); - ret = qset_add_urb_sg_linearize(whc, qset, urb, mem_flags); - } - if (ret < 0) - goto err_no_mem; - return 0; - } - - ntds_remaining = DIV_ROUND_UP(remaining, QTD_MAX_XFER_SIZE); - if (ntds_remaining == 0) - ntds_remaining = 1; - - while (ntds_remaining) { - struct whc_std *std; - size_t std_len; - - std_len = remaining; - if (std_len > QTD_MAX_XFER_SIZE) - std_len = QTD_MAX_XFER_SIZE; - - std = qset_new_std(whc, qset, urb, mem_flags); - if (std == NULL) - goto err_no_mem; - - std->dma_addr = transfer_dma; - std->len = std_len; - std->ntds_remaining = ntds_remaining; - - if (qset_fill_page_list(whc, std, mem_flags) < 0) - goto err_no_mem; - - ntds_remaining--; - remaining -= std_len; - transfer_dma += std_len; - } - - return 0; - -err_no_mem: - qset_free_stds(qset, urb); - return -ENOMEM; -} - -/** - * qset_remove_urb - remove an URB from the urb queue. - * - * The URB is returned to the USB subsystem. - */ -void qset_remove_urb(struct whc *whc, struct whc_qset *qset, - struct urb *urb, int status) -{ - struct wusbhc *wusbhc = &whc->wusbhc; - struct whc_urb *wurb = urb->hcpriv; - - usb_hcd_unlink_urb_from_ep(&wusbhc->usb_hcd, urb); - /* Drop the lock as urb->complete() may enqueue another urb. */ - spin_unlock(&whc->lock); - wusbhc_giveback_urb(wusbhc, urb, status); - spin_lock(&whc->lock); - - kfree(wurb); -} - -/** - * get_urb_status_from_qtd - get the completed urb status from qTD status - * @urb: completed urb - * @status: qTD status - */ -static int get_urb_status_from_qtd(struct urb *urb, u32 status) -{ - if (status & QTD_STS_HALTED) { - if (status & QTD_STS_DBE) - return usb_pipein(urb->pipe) ? -ENOSR : -ECOMM; - else if (status & QTD_STS_BABBLE) - return -EOVERFLOW; - else if (status & QTD_STS_RCE) - return -ETIME; - return -EPIPE; - } - if (usb_pipein(urb->pipe) - && (urb->transfer_flags & URB_SHORT_NOT_OK) - && urb->actual_length < urb->transfer_buffer_length) - return -EREMOTEIO; - return 0; -} - -/** - * process_inactive_qtd - process an inactive (but not halted) qTD. - * - * Update the urb with the transfer bytes from the qTD, if the urb is - * completely transferred or (in the case of an IN only) the LPF is - * set, then the transfer is complete and the urb should be returned - * to the system. - */ -void process_inactive_qtd(struct whc *whc, struct whc_qset *qset, - struct whc_qtd *qtd) -{ - struct whc_std *std = list_first_entry(&qset->stds, struct whc_std, list_node); - struct urb *urb = std->urb; - uint32_t status; - bool complete; - - status = le32_to_cpu(qtd->status); - - urb->actual_length += std->len - QTD_STS_TO_LEN(status); - - if (usb_pipein(urb->pipe) && (status & QTD_STS_LAST_PKT)) - complete = true; - else - complete = whc_std_last(std); - - qset_remove_qtd(whc, qset); - qset_free_std(whc, std); - - /* - * Transfers for this URB are complete? Then return it to the - * USB subsystem. - */ - if (complete) { - qset_remove_qtds(whc, qset, urb); - qset_remove_urb(whc, qset, urb, get_urb_status_from_qtd(urb, status)); - - /* - * If iAlt isn't valid then the hardware didn't - * advance iCur. Adjust the start and end pointers to - * match iCur. - */ - if (!(status & QTD_STS_IALT_VALID)) - qset->td_start = qset->td_end - = QH_STATUS_TO_ICUR(le16_to_cpu(qset->qh.status)); - qset->pause_after_urb = NULL; - } -} - -/** - * process_halted_qtd - process a qset with a halted qtd - * - * Remove all the qTDs for the failed URB and return the failed URB to - * the USB subsystem. Then remove all other qTDs so the qset can be - * removed. - * - * FIXME: this is the point where rate adaptation can be done. If a - * transfer failed because it exceeded the maximum number of retries - * then it could be reactivated with a slower rate without having to - * remove the qset. - */ -void process_halted_qtd(struct whc *whc, struct whc_qset *qset, - struct whc_qtd *qtd) -{ - struct whc_std *std = list_first_entry(&qset->stds, struct whc_std, list_node); - struct urb *urb = std->urb; - int urb_status; - - urb_status = get_urb_status_from_qtd(urb, le32_to_cpu(qtd->status)); - - qset_remove_qtds(whc, qset, urb); - qset_remove_urb(whc, qset, urb, urb_status); - - list_for_each_entry(std, &qset->stds, list_node) { - if (qset->ntds == 0) - break; - qset_remove_qtd(whc, qset); - std->qtd = NULL; - } - - qset->remove = 1; -} - -void qset_free(struct whc *whc, struct whc_qset *qset) -{ - dma_pool_free(whc->qset_pool, qset, qset->qset_dma); -} - -/** - * qset_delete - wait for a qset to be unused, then free it. - */ -void qset_delete(struct whc *whc, struct whc_qset *qset) -{ - wait_for_completion(&qset->remove_complete); - qset_free(whc, qset); -} diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h deleted file mode 100644 index 139476997e7c..000000000000 --- a/drivers/usb/host/whci/whcd.h +++ /dev/null @@ -1,202 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) private header. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#ifndef __WHCD_H -#define __WHCD_H - -#include <linux/uwb/whci.h> -#include <linux/uwb/umc.h> -#include <linux/workqueue.h> - -#include "whci-hc.h" - -/* Generic command timeout. */ -#define WHC_GENCMD_TIMEOUT_MS 100 - -struct whc_dbg; - -struct whc { - struct wusbhc wusbhc; - struct umc_dev *umc; - - resource_size_t base_phys; - void __iomem *base; - int irq; - - u8 n_devices; - u8 n_keys; - u8 n_mmc_ies; - - u64 *pz_list; - struct dn_buf_entry *dn_buf; - struct di_buf_entry *di_buf; - dma_addr_t pz_list_dma; - dma_addr_t dn_buf_dma; - dma_addr_t di_buf_dma; - - spinlock_t lock; - struct mutex mutex; - - void * gen_cmd_buf; - dma_addr_t gen_cmd_buf_dma; - wait_queue_head_t cmd_wq; - - struct workqueue_struct *workqueue; - struct work_struct dn_work; - - struct dma_pool *qset_pool; - - struct list_head async_list; - struct list_head async_removed_list; - wait_queue_head_t async_list_wq; - struct work_struct async_work; - - struct list_head periodic_list[5]; - struct list_head periodic_removed_list; - wait_queue_head_t periodic_list_wq; - struct work_struct periodic_work; - - struct whc_dbg *dbg; -}; - -#define wusbhc_to_whc(w) (container_of((w), struct whc, wusbhc)) - -/** - * struct whc_std - a software TD. - * @urb: the URB this sTD is for. - * @offset: start of the URB's data for this TD. - * @len: the length of data in the associated TD. - * @ntds_remaining: number of TDs (starting from this one) in this transfer. - * - * @bounce_buf: a bounce buffer if the std was from an urb with a sg - * list that could not be mapped to qTDs directly. - * @bounce_sg: the first scatterlist element bounce_buf is for. - * @bounce_offset: the offset into bounce_sg for the start of bounce_buf. - * - * Queued URBs may require more TDs than are available in a qset so we - * use a list of these "software TDs" (sTDs) to hold per-TD data. - */ -struct whc_std { - struct urb *urb; - size_t len; - int ntds_remaining; - struct whc_qtd *qtd; - - struct list_head list_node; - int num_pointers; - dma_addr_t dma_addr; - struct whc_page_list_entry *pl_virt; - - void *bounce_buf; - struct scatterlist *bounce_sg; - unsigned bounce_offset; -}; - -/** - * struct whc_urb - per URB host controller structure. - * @urb: the URB this struct is for. - * @qset: the qset associated to the URB. - * @dequeue_work: the work to remove the URB when dequeued. - * @is_async: the URB belongs to async sheduler or not. - * @status: the status to be returned when calling wusbhc_giveback_urb. - */ -struct whc_urb { - struct urb *urb; - struct whc_qset *qset; - struct work_struct dequeue_work; - bool is_async; - int status; -}; - -/** - * whc_std_last - is this sTD the URB's last? - * @std: the sTD to check. - */ -static inline bool whc_std_last(struct whc_std *std) -{ - return std->ntds_remaining <= 1; -} - -enum whc_update { - WHC_UPDATE_ADDED = 0x01, - WHC_UPDATE_REMOVED = 0x02, - WHC_UPDATE_UPDATED = 0x04, -}; - -/* init.c */ -int whc_init(struct whc *whc); -void whc_clean_up(struct whc *whc); - -/* hw.c */ -void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val); -int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len); -void whc_hw_error(struct whc *whc, const char *reason); - -/* wusb.c */ -int whc_wusbhc_start(struct wusbhc *wusbhc); -void whc_wusbhc_stop(struct wusbhc *wusbhc, int delay); -int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, - u8 handle, struct wuie_hdr *wuie); -int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle); -int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm); -int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev); -int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots); -int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, - const void *ptk, size_t key_size); -int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid, - const void *gtk, size_t key_size); -int whc_set_cluster_id(struct whc *whc, u8 bcid); - -/* int.c */ -irqreturn_t whc_int_handler(struct usb_hcd *hcd); -void whc_dn_work(struct work_struct *work); - -/* asl.c */ -void asl_start(struct whc *whc); -void asl_stop(struct whc *whc); -int asl_init(struct whc *whc); -void asl_clean_up(struct whc *whc); -int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags); -int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status); -void asl_qset_delete(struct whc *whc, struct whc_qset *qset); -void scan_async_work(struct work_struct *work); - -/* pzl.c */ -int pzl_init(struct whc *whc); -void pzl_clean_up(struct whc *whc); -void pzl_start(struct whc *whc); -void pzl_stop(struct whc *whc); -int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags); -int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status); -void pzl_qset_delete(struct whc *whc, struct whc_qset *qset); -void scan_periodic_work(struct work_struct *work); - -/* qset.c */ -struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags); -void qset_free(struct whc *whc, struct whc_qset *qset); -struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags); -void qset_delete(struct whc *whc, struct whc_qset *qset); -void qset_clear(struct whc *whc, struct whc_qset *qset); -void qset_reset(struct whc *whc, struct whc_qset *qset); -int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, - gfp_t mem_flags); -void qset_free_std(struct whc *whc, struct whc_std *std); -void qset_remove_urb(struct whc *whc, struct whc_qset *qset, - struct urb *urb, int status); -void process_halted_qtd(struct whc *whc, struct whc_qset *qset, - struct whc_qtd *qtd); -void process_inactive_qtd(struct whc *whc, struct whc_qset *qset, - struct whc_qtd *qtd); -enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset); -void qset_remove_complete(struct whc *whc, struct whc_qset *qset); -void pzl_update(struct whc *whc, uint32_t wusbcmd); -void asl_update(struct whc *whc, uint32_t wusbcmd); - -/* debug.c */ -void whc_dbg_init(struct whc *whc); -void whc_dbg_clean_up(struct whc *whc); - -#endif /* #ifndef __WHCD_H */ diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h deleted file mode 100644 index 5a86a57a80cc..000000000000 --- a/drivers/usb/host/whci/whci-hc.h +++ /dev/null @@ -1,401 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) data structures. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#ifndef _WHCI_WHCI_HC_H -#define _WHCI_WHCI_HC_H - -#include <linux/list.h> - -/** - * WHCI_PAGE_SIZE - page size use by WHCI - * - * WHCI assumes that host system uses pages of 4096 octets. - */ -#define WHCI_PAGE_SIZE 4096 - - -/** - * QTD_MAX_TXFER_SIZE - max number of bytes to transfer with a single - * qtd. - * - * This is 2^20 - 1. - */ -#define QTD_MAX_XFER_SIZE 1048575 - - -/** - * struct whc_qtd - Queue Element Transfer Descriptors (qTD) - * - * This describes the data for a bulk, control or interrupt transfer. - * - * [WHCI] section 3.2.4 - */ -struct whc_qtd { - __le32 status; /*< remaining transfer len and transfer status */ - __le32 options; - __le64 page_list_ptr; /*< physical pointer to data buffer page list*/ - __u8 setup[8]; /*< setup data for control transfers */ -} __attribute__((packed)); - -#define QTD_STS_ACTIVE (1 << 31) /* enable execution of transaction */ -#define QTD_STS_HALTED (1 << 30) /* transfer halted */ -#define QTD_STS_DBE (1 << 29) /* data buffer error */ -#define QTD_STS_BABBLE (1 << 28) /* babble detected */ -#define QTD_STS_RCE (1 << 27) /* retry count exceeded */ -#define QTD_STS_LAST_PKT (1 << 26) /* set Last Packet Flag in WUSB header */ -#define QTD_STS_INACTIVE (1 << 25) /* queue set is marked inactive */ -#define QTD_STS_IALT_VALID (1 << 23) /* iAlt field is valid */ -#define QTD_STS_IALT(i) (QTD_STS_IALT_VALID | ((i) << 20)) /* iAlt field */ -#define QTD_STS_LEN(l) ((l) << 0) /* transfer length */ -#define QTD_STS_TO_LEN(s) ((s) & 0x000fffff) - -#define QTD_OPT_IOC (1 << 1) /* page_list_ptr points to buffer directly */ -#define QTD_OPT_SMALL (1 << 0) /* interrupt on complete */ - -/** - * struct whc_itd - Isochronous Queue Element Transfer Descriptors (iTD) - * - * This describes the data and other parameters for an isochronous - * transfer. - * - * [WHCI] section 3.2.5 - */ -struct whc_itd { - __le16 presentation_time; /*< presentation time for OUT transfers */ - __u8 num_segments; /*< number of data segments in segment list */ - __u8 status; /*< command execution status */ - __le32 options; /*< misc transfer options */ - __le64 page_list_ptr; /*< physical pointer to data buffer page list */ - __le64 seg_list_ptr; /*< physical pointer to segment list */ -} __attribute__((packed)); - -#define ITD_STS_ACTIVE (1 << 7) /* enable execution of transaction */ -#define ITD_STS_DBE (1 << 5) /* data buffer error */ -#define ITD_STS_BABBLE (1 << 4) /* babble detected */ -#define ITD_STS_INACTIVE (1 << 1) /* queue set is marked inactive */ - -#define ITD_OPT_IOC (1 << 1) /* interrupt on complete */ -#define ITD_OPT_SMALL (1 << 0) /* page_list_ptr points to buffer directly */ - -/** - * Page list entry. - * - * A TD's page list must contain sufficient page list entries for the - * total data length in the TD. - * - * [WHCI] section 3.2.4.3 - */ -struct whc_page_list_entry { - __le64 buf_ptr; /*< physical pointer to buffer */ -} __attribute__((packed)); - -/** - * struct whc_seg_list_entry - Segment list entry. - * - * Describes a portion of the data buffer described in the containing - * qTD's page list. - * - * seg_ptr = qtd->page_list_ptr[qtd->seg_list_ptr[seg].idx].buf_ptr - * + qtd->seg_list_ptr[seg].offset; - * - * Segments can't cross page boundries. - * - * [WHCI] section 3.2.5.5 - */ -struct whc_seg_list_entry { - __le16 len; /*< segment length */ - __u8 idx; /*< index into page list */ - __u8 status; /*< segment status */ - __le16 offset; /*< 12 bit offset into page */ -} __attribute__((packed)); - -/** - * struct whc_qhead - endpoint and status information for a qset. - * - * [WHCI] section 3.2.6 - */ -struct whc_qhead { - __le64 link; /*< next qset in list */ - __le32 info1; - __le32 info2; - __le32 info3; - __le16 status; - __le16 err_count; /*< transaction error count */ - __le32 cur_window; - __le32 scratch[3]; /*< h/w scratch area */ - union { - struct whc_qtd qtd; - struct whc_itd itd; - } overlay; -} __attribute__((packed)); - -#define QH_LINK_PTR_MASK (~0x03Full) -#define QH_LINK_PTR(ptr) ((ptr) & QH_LINK_PTR_MASK) -#define QH_LINK_IQS (1 << 4) /* isochronous queue set */ -#define QH_LINK_NTDS(n) (((n) - 1) << 1) /* number of TDs in queue set */ -#define QH_LINK_T (1 << 0) /* last queue set in periodic schedule list */ - -#define QH_INFO1_EP(e) ((e) << 0) /* endpoint number */ -#define QH_INFO1_DIR_IN (1 << 4) /* IN transfer */ -#define QH_INFO1_DIR_OUT (0 << 4) /* OUT transfer */ -#define QH_INFO1_TR_TYPE_CTRL (0x0 << 5) /* control transfer */ -#define QH_INFO1_TR_TYPE_ISOC (0x1 << 5) /* isochronous transfer */ -#define QH_INFO1_TR_TYPE_BULK (0x2 << 5) /* bulk transfer */ -#define QH_INFO1_TR_TYPE_INT (0x3 << 5) /* interrupt */ -#define QH_INFO1_TR_TYPE_LP_INT (0x7 << 5) /* low power interrupt */ -#define QH_INFO1_DEV_INFO_IDX(i) ((i) << 8) /* index into device info buffer */ -#define QH_INFO1_SET_INACTIVE (1 << 15) /* set inactive after transfer */ -#define QH_INFO1_MAX_PKT_LEN(l) ((l) << 16) /* maximum packet length */ - -#define QH_INFO2_BURST(b) ((b) << 0) /* maximum burst length */ -#define QH_INFO2_DBP(p) ((p) << 5) /* data burst policy (see [WUSB] table 5-7) */ -#define QH_INFO2_MAX_COUNT(c) ((c) << 8) /* max isoc/int pkts per zone */ -#define QH_INFO2_RQS (1 << 15) /* reactivate queue set */ -#define QH_INFO2_MAX_RETRY(r) ((r) << 16) /* maximum transaction retries */ -#define QH_INFO2_MAX_SEQ(s) ((s) << 20) /* maximum sequence number */ -#define QH_INFO3_MAX_DELAY(d) ((d) << 0) /* maximum stream delay in 125 us units (isoc only) */ -#define QH_INFO3_INTERVAL(i) ((i) << 16) /* segment interval in 125 us units (isoc only) */ - -#define QH_INFO3_TX_RATE(r) ((r) << 24) /* PHY rate (see [ECMA-368] section 10.3.1.1) */ -#define QH_INFO3_TX_PWR(p) ((p) << 29) /* transmit power (see [WUSB] section 5.2.1.2) */ - -#define QH_STATUS_FLOW_CTRL (1 << 15) -#define QH_STATUS_ICUR(i) ((i) << 5) -#define QH_STATUS_TO_ICUR(s) (((s) >> 5) & 0x7) -#define QH_STATUS_SEQ_MASK 0x1f - -/** - * usb_pipe_to_qh_type - USB core pipe type to QH transfer type - * - * Returns the QH type field for a USB core pipe type. - */ -static inline unsigned usb_pipe_to_qh_type(unsigned pipe) -{ - static const unsigned type[] = { - [PIPE_ISOCHRONOUS] = QH_INFO1_TR_TYPE_ISOC, - [PIPE_INTERRUPT] = QH_INFO1_TR_TYPE_INT, - [PIPE_CONTROL] = QH_INFO1_TR_TYPE_CTRL, - [PIPE_BULK] = QH_INFO1_TR_TYPE_BULK, - }; - return type[usb_pipetype(pipe)]; -} - -/** - * Maxiumum number of TDs in a qset. - */ -#define WHCI_QSET_TD_MAX 8 - -/** - * struct whc_qset - WUSB data transfers to a specific endpoint - * @qh: the QHead of this qset - * @qtd: up to 8 qTDs (for qsets for control, bulk and interrupt - * transfers) - * @itd: up to 8 iTDs (for qsets for isochronous transfers) - * @qset_dma: DMA address for this qset - * @whc: WHCI HC this qset is for - * @ep: endpoint - * @stds: list of sTDs queued to this qset - * @ntds: number of qTDs queued (not necessarily the same as nTDs - * field in the QH) - * @td_start: index of the first qTD in the list - * @td_end: index of next free qTD in the list (provided - * ntds < WHCI_QSET_TD_MAX) - * - * Queue Sets (qsets) are added to the asynchronous schedule list - * (ASL) or the periodic zone list (PZL). - * - * qsets may contain up to 8 TDs (either qTDs or iTDs as appropriate). - * Each TD may refer to at most 1 MiB of data. If a single transfer - * has > 8MiB of data, TDs can be reused as they are completed since - * the TD list is used as a circular buffer. Similarly, several - * (smaller) transfers may be queued in a qset. - * - * WHCI controllers may cache portions of the qsets in the ASL and - * PZL, requiring the WHCD to inform the WHC that the lists have been - * updated (fields changed or qsets inserted or removed). For safe - * insertion and removal of qsets from the lists the schedule must be - * stopped to avoid races in updating the QH link pointers. - * - * Since the HC is free to execute qsets in any order, all transfers - * to an endpoint should use the same qset to ensure transfers are - * executed in the order they're submitted. - * - * [WHCI] section 3.2.3 - */ -struct whc_qset { - struct whc_qhead qh; - union { - struct whc_qtd qtd[WHCI_QSET_TD_MAX]; - struct whc_itd itd[WHCI_QSET_TD_MAX]; - }; - - /* private data for WHCD */ - dma_addr_t qset_dma; - struct whc *whc; - struct usb_host_endpoint *ep; - struct list_head stds; - int ntds; - int td_start; - int td_end; - struct list_head list_node; - unsigned in_sw_list:1; - unsigned in_hw_list:1; - unsigned remove:1; - unsigned reset:1; - struct urb *pause_after_urb; - struct completion remove_complete; - uint16_t max_packet; - uint8_t max_burst; - uint8_t max_seq; -}; - -static inline void whc_qset_set_link_ptr(u64 *ptr, u64 target) -{ - if (target) - *ptr = (*ptr & ~(QH_LINK_PTR_MASK | QH_LINK_T)) | QH_LINK_PTR(target); - else - *ptr = QH_LINK_T; -} - -/** - * struct di_buf_entry - Device Information (DI) buffer entry. - * - * There's one of these per connected device. - */ -struct di_buf_entry { - __le32 availability_info[8]; /*< MAS availability information, one MAS per bit */ - __le32 addr_sec_info; /*< addressing and security info */ - __le32 reserved[7]; -} __attribute__((packed)); - -#define WHC_DI_SECURE (1 << 31) -#define WHC_DI_DISABLE (1 << 30) -#define WHC_DI_KEY_IDX(k) ((k) << 8) -#define WHC_DI_KEY_IDX_MASK 0x0000ff00 -#define WHC_DI_DEV_ADDR(a) ((a) << 0) -#define WHC_DI_DEV_ADDR_MASK 0x000000ff - -/** - * struct dn_buf_entry - Device Notification (DN) buffer entry. - * - * [WHCI] section 3.2.8 - */ -struct dn_buf_entry { - __u8 msg_size; /*< number of octets of valid DN data */ - __u8 reserved1; - __u8 src_addr; /*< source address */ - __u8 status; /*< buffer entry status */ - __le32 tkid; /*< TKID for source device, valid if secure bit is set */ - __u8 dn_data[56]; /*< up to 56 octets of DN data */ -} __attribute__((packed)); - -#define WHC_DN_STATUS_VALID (1 << 7) /* buffer entry is valid */ -#define WHC_DN_STATUS_SECURE (1 << 6) /* notification received using secure frame */ - -#define WHC_N_DN_ENTRIES (4096 / sizeof(struct dn_buf_entry)) - -/* The Add MMC IE WUSB Generic Command may take up to 256 bytes of - data. [WHCI] section 2.4.7. */ -#define WHC_GEN_CMD_DATA_LEN 256 - -/* - * HC registers. - * - * [WHCI] section 2.4 - */ - -#define WHCIVERSION 0x00 - -#define WHCSPARAMS 0x04 -# define WHCSPARAMS_TO_N_MMC_IES(p) (((p) >> 16) & 0xff) -# define WHCSPARAMS_TO_N_KEYS(p) (((p) >> 8) & 0xff) -# define WHCSPARAMS_TO_N_DEVICES(p) (((p) >> 0) & 0x7f) - -#define WUSBCMD 0x08 -# define WUSBCMD_BCID(b) ((b) << 16) -# define WUSBCMD_BCID_MASK (0xff << 16) -# define WUSBCMD_ASYNC_QSET_RM (1 << 12) -# define WUSBCMD_PERIODIC_QSET_RM (1 << 11) -# define WUSBCMD_WUSBSI(s) ((s) << 8) -# define WUSBCMD_WUSBSI_MASK (0x7 << 8) -# define WUSBCMD_ASYNC_SYNCED_DB (1 << 7) -# define WUSBCMD_PERIODIC_SYNCED_DB (1 << 6) -# define WUSBCMD_ASYNC_UPDATED (1 << 5) -# define WUSBCMD_PERIODIC_UPDATED (1 << 4) -# define WUSBCMD_ASYNC_EN (1 << 3) -# define WUSBCMD_PERIODIC_EN (1 << 2) -# define WUSBCMD_WHCRESET (1 << 1) -# define WUSBCMD_RUN (1 << 0) - -#define WUSBSTS 0x0c -# define WUSBSTS_ASYNC_SCHED (1 << 15) -# define WUSBSTS_PERIODIC_SCHED (1 << 14) -# define WUSBSTS_DNTS_SCHED (1 << 13) -# define WUSBSTS_HCHALTED (1 << 12) -# define WUSBSTS_GEN_CMD_DONE (1 << 9) -# define WUSBSTS_CHAN_TIME_ROLLOVER (1 << 8) -# define WUSBSTS_DNTS_OVERFLOW (1 << 7) -# define WUSBSTS_BPST_ADJUSTMENT_CHANGED (1 << 6) -# define WUSBSTS_HOST_ERR (1 << 5) -# define WUSBSTS_ASYNC_SCHED_SYNCED (1 << 4) -# define WUSBSTS_PERIODIC_SCHED_SYNCED (1 << 3) -# define WUSBSTS_DNTS_INT (1 << 2) -# define WUSBSTS_ERR_INT (1 << 1) -# define WUSBSTS_INT (1 << 0) -# define WUSBSTS_INT_MASK 0x3ff - -#define WUSBINTR 0x10 -# define WUSBINTR_GEN_CMD_DONE (1 << 9) -# define WUSBINTR_CHAN_TIME_ROLLOVER (1 << 8) -# define WUSBINTR_DNTS_OVERFLOW (1 << 7) -# define WUSBINTR_BPST_ADJUSTMENT_CHANGED (1 << 6) -# define WUSBINTR_HOST_ERR (1 << 5) -# define WUSBINTR_ASYNC_SCHED_SYNCED (1 << 4) -# define WUSBINTR_PERIODIC_SCHED_SYNCED (1 << 3) -# define WUSBINTR_DNTS_INT (1 << 2) -# define WUSBINTR_ERR_INT (1 << 1) -# define WUSBINTR_INT (1 << 0) -# define WUSBINTR_ALL 0x3ff - -#define WUSBGENCMDSTS 0x14 -# define WUSBGENCMDSTS_ACTIVE (1 << 31) -# define WUSBGENCMDSTS_ERROR (1 << 24) -# define WUSBGENCMDSTS_IOC (1 << 23) -# define WUSBGENCMDSTS_MMCIE_ADD 0x01 -# define WUSBGENCMDSTS_MMCIE_RM 0x02 -# define WUSBGENCMDSTS_SET_MAS 0x03 -# define WUSBGENCMDSTS_CHAN_STOP 0x04 -# define WUSBGENCMDSTS_RWP_EN 0x05 - -#define WUSBGENCMDPARAMS 0x18 -#define WUSBGENADDR 0x20 -#define WUSBASYNCLISTADDR 0x28 -#define WUSBDNTSBUFADDR 0x30 -#define WUSBDEVICEINFOADDR 0x38 - -#define WUSBSETSECKEYCMD 0x40 -# define WUSBSETSECKEYCMD_SET (1 << 31) -# define WUSBSETSECKEYCMD_ERASE (1 << 30) -# define WUSBSETSECKEYCMD_GTK (1 << 8) -# define WUSBSETSECKEYCMD_IDX(i) ((i) << 0) - -#define WUSBTKID 0x44 -#define WUSBSECKEY 0x48 -#define WUSBPERIODICLISTBASE 0x58 -#define WUSBMASINDEX 0x60 - -#define WUSBDNTSCTRL 0x64 -# define WUSBDNTSCTRL_ACTIVE (1 << 31) -# define WUSBDNTSCTRL_INTERVAL(i) ((i) << 8) -# define WUSBDNTSCTRL_SLOTS(s) ((s) << 0) - -#define WUSBTIME 0x68 -# define WUSBTIME_CHANNEL_TIME_MASK 0x00ffffff - -#define WUSBBPST 0x6c -#define WUSBDIBUPDATED 0x70 - -#endif /* #ifndef _WHCI_WHCI_HC_H */ diff --git a/drivers/usb/host/whci/wusb.c b/drivers/usb/host/whci/wusb.c deleted file mode 100644 index 8a4d805ff63a..000000000000 --- a/drivers/usb/host/whci/wusb.c +++ /dev/null @@ -1,210 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Wireless Host Controller (WHC) WUSB operations. - * - * Copyright (C) 2007 Cambridge Silicon Radio Ltd. - */ -#include <linux/kernel.h> -#include <linux/uwb/umc.h> - -#include "../../wusbcore/wusbhc.h" - -#include "whcd.h" - -static int whc_update_di(struct whc *whc, int idx) -{ - int offset = idx / 32; - u32 bit = 1 << (idx % 32); - - le_writel(bit, whc->base + WUSBDIBUPDATED + offset); - - return whci_wait_for(&whc->umc->dev, - whc->base + WUSBDIBUPDATED + offset, bit, 0, - 100, "DI update"); -} - -/* - * WHCI starts MMCs based on there being a valid GTK so these need - * only start/stop the asynchronous and periodic schedules and send a - * channel stop command. - */ - -int whc_wusbhc_start(struct wusbhc *wusbhc) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - - asl_start(whc); - pzl_start(whc); - - return 0; -} - -void whc_wusbhc_stop(struct wusbhc *wusbhc, int delay) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - u32 stop_time, now_time; - int ret; - - pzl_stop(whc); - asl_stop(whc); - - now_time = le_readl(whc->base + WUSBTIME) & WUSBTIME_CHANNEL_TIME_MASK; - stop_time = (now_time + ((delay * 8) << 7)) & 0x00ffffff; - ret = whc_do_gencmd(whc, WUSBGENCMDSTS_CHAN_STOP, stop_time, NULL, 0); - if (ret == 0) - msleep(delay); -} - -int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, - u8 handle, struct wuie_hdr *wuie) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - u32 params; - - params = (interval << 24) - | (repeat_cnt << 16) - | (wuie->bLength << 8) - | handle; - - return whc_do_gencmd(whc, WUSBGENCMDSTS_MMCIE_ADD, params, wuie, wuie->bLength); -} - -int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - u32 params; - - params = handle; - - return whc_do_gencmd(whc, WUSBGENCMDSTS_MMCIE_RM, params, NULL, 0); -} - -int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - - if (stream_index >= 0) - whc_write_wusbcmd(whc, WUSBCMD_WUSBSI_MASK, WUSBCMD_WUSBSI(stream_index)); - - return whc_do_gencmd(whc, WUSBGENCMDSTS_SET_MAS, 0, (void *)mas_bm, sizeof(*mas_bm)); -} - -int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - int idx = wusb_dev->port_idx; - struct di_buf_entry *di = &whc->di_buf[idx]; - int ret; - - mutex_lock(&whc->mutex); - - uwb_mas_bm_copy_le(di->availability_info, &wusb_dev->availability); - di->addr_sec_info &= ~(WHC_DI_DISABLE | WHC_DI_DEV_ADDR_MASK); - di->addr_sec_info |= WHC_DI_DEV_ADDR(wusb_dev->addr); - - ret = whc_update_di(whc, idx); - - mutex_unlock(&whc->mutex); - - return ret; -} - -/* - * Set the number of Device Notification Time Slots (DNTS) and enable - * device notifications. - */ -int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - u32 dntsctrl; - - dntsctrl = WUSBDNTSCTRL_ACTIVE - | WUSBDNTSCTRL_INTERVAL(interval) - | WUSBDNTSCTRL_SLOTS(slots); - - le_writel(dntsctrl, whc->base + WUSBDNTSCTRL); - - return 0; -} - -static int whc_set_key(struct whc *whc, u8 key_index, uint32_t tkid, - const void *key, size_t key_size, bool is_gtk) -{ - uint32_t setkeycmd; - uint32_t seckey[4]; - int i; - int ret; - - memcpy(seckey, key, key_size); - setkeycmd = WUSBSETSECKEYCMD_SET | WUSBSETSECKEYCMD_IDX(key_index); - if (is_gtk) - setkeycmd |= WUSBSETSECKEYCMD_GTK; - - le_writel(tkid, whc->base + WUSBTKID); - for (i = 0; i < 4; i++) - le_writel(seckey[i], whc->base + WUSBSECKEY + 4*i); - le_writel(setkeycmd, whc->base + WUSBSETSECKEYCMD); - - ret = whci_wait_for(&whc->umc->dev, whc->base + WUSBSETSECKEYCMD, - WUSBSETSECKEYCMD_SET, 0, 100, "set key"); - - return ret; -} - -/** - * whc_set_ptk - set the PTK to use for a device. - * - * The index into the key table for this PTK is the same as the - * device's port index. - */ -int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, - const void *ptk, size_t key_size) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - struct di_buf_entry *di = &whc->di_buf[port_idx]; - int ret; - - mutex_lock(&whc->mutex); - - if (ptk) { - ret = whc_set_key(whc, port_idx, tkid, ptk, key_size, false); - if (ret) - goto out; - - di->addr_sec_info &= ~WHC_DI_KEY_IDX_MASK; - di->addr_sec_info |= WHC_DI_SECURE | WHC_DI_KEY_IDX(port_idx); - } else - di->addr_sec_info &= ~WHC_DI_SECURE; - - ret = whc_update_di(whc, port_idx); -out: - mutex_unlock(&whc->mutex); - return ret; -} - -/** - * whc_set_gtk - set the GTK for subsequent broadcast packets - * - * The GTK is stored in the last entry in the key table (the previous - * N_DEVICES entries are for the per-device PTKs). - */ -int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid, - const void *gtk, size_t key_size) -{ - struct whc *whc = wusbhc_to_whc(wusbhc); - int ret; - - mutex_lock(&whc->mutex); - - ret = whc_set_key(whc, whc->n_devices, tkid, gtk, key_size, true); - - mutex_unlock(&whc->mutex); - - return ret; -} - -int whc_set_cluster_id(struct whc *whc, u8 bcid) -{ - whc_write_wusbcmd(whc, WUSBCMD_BCID_MASK, WUSBCMD_BCID(bcid)); - return 0; -} diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c index 52e32644a4b2..93e2cca5262d 100644 --- a/drivers/usb/host/xhci-dbgcap.c +++ b/drivers/usb/host/xhci-dbgcap.c @@ -22,7 +22,6 @@ dbc_dma_alloc_coherent(struct xhci_hcd *xhci, size_t size, vaddr = dma_alloc_coherent(xhci_to_hcd(xhci)->self.sysdev, size, dma_handle, flags); - memset(vaddr, 0, size); return vaddr; } diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c index aff79ff5aba4..be726c791323 100644 --- a/drivers/usb/host/xhci-dbgtty.c +++ b/drivers/usb/host/xhci-dbgtty.c @@ -139,14 +139,14 @@ xhci_dbc_alloc_requests(struct dbc_ep *dep, struct list_head *head, struct dbc_request *req; for (i = 0; i < DBC_QUEUE_SIZE; i++) { - req = dbc_alloc_request(dep, GFP_ATOMIC); + req = dbc_alloc_request(dep, GFP_KERNEL); if (!req) break; req->length = DBC_MAX_PACKET; req->buf = kmalloc(req->length, GFP_KERNEL); if (!req->buf) { - xhci_dbc_free_req(dep, req); + dbc_free_request(dep, req); break; } diff --git a/drivers/usb/host/xhci-debugfs.c b/drivers/usb/host/xhci-debugfs.c index 7ba6afc7ef23..76c3f29562d2 100644 --- a/drivers/usb/host/xhci-debugfs.c +++ b/drivers/usb/host/xhci-debugfs.c @@ -202,10 +202,10 @@ static void xhci_ring_dump_segment(struct seq_file *s, trb = &seg->trbs[i]; dma = seg->dma + i * sizeof(*trb); seq_printf(s, "%pad: %s\n", &dma, - xhci_decode_trb(trb->generic.field[0], - trb->generic.field[1], - trb->generic.field[2], - trb->generic.field[3])); + xhci_decode_trb(le32_to_cpu(trb->generic.field[0]), + le32_to_cpu(trb->generic.field[1]), + le32_to_cpu(trb->generic.field[2]), + le32_to_cpu(trb->generic.field[3]))); } } @@ -263,10 +263,10 @@ static int xhci_slot_context_show(struct seq_file *s, void *unused) xhci = hcd_to_xhci(bus_to_hcd(dev->udev->bus)); slot_ctx = xhci_get_slot_ctx(xhci, dev->out_ctx); seq_printf(s, "%pad: %s\n", &dev->out_ctx->dma, - xhci_decode_slot_context(slot_ctx->dev_info, - slot_ctx->dev_info2, - slot_ctx->tt_info, - slot_ctx->dev_state)); + xhci_decode_slot_context(le32_to_cpu(slot_ctx->dev_info), + le32_to_cpu(slot_ctx->dev_info2), + le32_to_cpu(slot_ctx->tt_info), + le32_to_cpu(slot_ctx->dev_state))); return 0; } @@ -286,10 +286,10 @@ static int xhci_endpoint_context_show(struct seq_file *s, void *unused) ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, dci); dma = dev->out_ctx->dma + dci * CTX_SIZE(xhci->hcc_params); seq_printf(s, "%pad: %s\n", &dma, - xhci_decode_ep_context(ep_ctx->ep_info, - ep_ctx->ep_info2, - ep_ctx->deq, - ep_ctx->tx_info)); + xhci_decode_ep_context(le32_to_cpu(ep_ctx->ep_info), + le32_to_cpu(ep_ctx->ep_info2), + le64_to_cpu(ep_ctx->deq), + le32_to_cpu(ep_ctx->tx_info))); } return 0; diff --git a/drivers/usb/host/xhci-ext-caps.c b/drivers/usb/host/xhci-ext-caps.c index 399113f9fc5c..3351d07c431f 100644 --- a/drivers/usb/host/xhci-ext-caps.c +++ b/drivers/usb/host/xhci-ext-caps.c @@ -6,11 +6,20 @@ */ #include <linux/platform_device.h> +#include <linux/property.h> +#include <linux/pci.h> #include "xhci.h" #define USB_SW_DRV_NAME "intel_xhci_usb_sw" #define USB_SW_RESOURCE_SIZE 0x400 +#define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI 0x22b5 + +static const struct property_entry role_switch_props[] = { + PROPERTY_ENTRY_BOOL("sw_switch_disable"), + {}, +}; + static void xhci_intel_unregister_pdev(void *arg) { platform_device_unregister(arg); @@ -21,6 +30,7 @@ static int xhci_create_intel_xhci_sw_pdev(struct xhci_hcd *xhci, u32 cap_offset) struct usb_hcd *hcd = xhci_to_hcd(xhci); struct device *dev = hcd->self.controller; struct platform_device *pdev; + struct pci_dev *pci = to_pci_dev(dev); struct resource res = { 0, }; int ret; @@ -43,6 +53,15 @@ static int xhci_create_intel_xhci_sw_pdev(struct xhci_hcd *xhci, u32 cap_offset) return ret; } + if (pci->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI) { + ret = platform_device_add_properties(pdev, role_switch_props); + if (ret) { + dev_err(dev, "failed to register device properties\n"); + platform_device_put(pdev); + return ret; + } + } + pdev->dev.parent = dev; ret = platform_device_add(pdev); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 3abe70ff1b1e..7a3a29e5e9d2 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -806,7 +806,7 @@ static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, static int xhci_handle_usb2_port_link_resume(struct xhci_port *port, u32 *status, u32 portsc, - unsigned long flags) + unsigned long *flags) { struct xhci_bus_state *bus_state; struct xhci_hcd *xhci; @@ -860,11 +860,11 @@ static int xhci_handle_usb2_port_link_resume(struct xhci_port *port, xhci_test_and_clear_bit(xhci, port, PORT_PLC); xhci_set_link_state(xhci, port, XDEV_U0); - spin_unlock_irqrestore(&xhci->lock, flags); + spin_unlock_irqrestore(&xhci->lock, *flags); time_left = wait_for_completion_timeout( &bus_state->rexit_done[wIndex], msecs_to_jiffies(XHCI_MAX_REXIT_TIMEOUT_MS)); - spin_lock_irqsave(&xhci->lock, flags); + spin_lock_irqsave(&xhci->lock, *flags); if (time_left) { slot_id = xhci_find_slot_id_by_port(hcd, xhci, @@ -920,11 +920,13 @@ static void xhci_get_usb3_port_status(struct xhci_port *port, u32 *status, { struct xhci_bus_state *bus_state; struct xhci_hcd *xhci; + struct usb_hcd *hcd; u32 link_state; u32 portnum; bus_state = &port->rhub->bus_state; xhci = hcd_to_xhci(port->rhub->hcd); + hcd = port->rhub->hcd; link_state = portsc & PORT_PLS_MASK; portnum = port->hcd_portnum; @@ -952,12 +954,20 @@ static void xhci_get_usb3_port_status(struct xhci_port *port, u32 *status, bus_state->suspended_ports &= ~(1 << portnum); } + /* remote wake resume signaling complete */ + if (bus_state->port_remote_wakeup & (1 << portnum) && + link_state != XDEV_RESUME && + link_state != XDEV_RECOVERY) { + bus_state->port_remote_wakeup &= ~(1 << portnum); + usb_hcd_end_port_resume(&hcd->self, portnum); + } + xhci_hub_report_usb3_link_state(xhci, status, portsc); xhci_del_comp_mod_timer(xhci, portsc, portnum); } static void xhci_get_usb2_port_status(struct xhci_port *port, u32 *status, - u32 portsc, unsigned long flags) + u32 portsc, unsigned long *flags) { struct xhci_bus_state *bus_state; u32 link_state; @@ -1007,7 +1017,7 @@ static void xhci_get_usb2_port_status(struct xhci_port *port, u32 *status, static u32 xhci_get_port_status(struct usb_hcd *hcd, struct xhci_bus_state *bus_state, u16 wIndex, u32 raw_port_status, - unsigned long flags) + unsigned long *flags) __releases(&xhci->lock) __acquires(&xhci->lock) { @@ -1130,7 +1140,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, } trace_xhci_get_port_status(wIndex, temp); status = xhci_get_port_status(hcd, bus_state, wIndex, temp, - flags); + &flags); if (status == 0xffffffff) goto error; @@ -1149,7 +1159,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, } port_li = readl(ports[wIndex]->addr + PORTLI); status = xhci_get_ext_port_status(temp, port_li); - put_unaligned_le32(cpu_to_le32(status), &buf[4]); + put_unaligned_le32(status, &buf[4]); } break; case SetPortFeature: diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index cf5e17962179..3b1388fa2f36 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1909,13 +1909,17 @@ no_bw: xhci->usb3_rhub.num_ports = 0; xhci->num_active_eps = 0; kfree(xhci->usb2_rhub.ports); + kfree(xhci->usb2_rhub.psi); kfree(xhci->usb3_rhub.ports); + kfree(xhci->usb3_rhub.psi); kfree(xhci->hw_ports); kfree(xhci->rh_bw); kfree(xhci->ext_caps); xhci->usb2_rhub.ports = NULL; + xhci->usb2_rhub.psi = NULL; xhci->usb3_rhub.ports = NULL; + xhci->usb3_rhub.psi = NULL; xhci->hw_ports = NULL; xhci->rh_bw = NULL; xhci->ext_caps = NULL; @@ -2399,7 +2403,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) flags); if (!xhci->dcbaa) goto fail; - memset(xhci->dcbaa, 0, sizeof *(xhci->dcbaa)); xhci->dcbaa->dma = dma; xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Device context base array address = 0x%llx (DMA), %p (virt)", diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 026fe18972d3..bfbdb3ceed29 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -216,6 +216,10 @@ static int xhci_mtk_clks_get(struct xhci_hcd_mtk *mtk) return PTR_ERR(mtk->sys_clk); } + mtk->xhci_clk = devm_clk_get_optional(dev, "xhci_ck"); + if (IS_ERR(mtk->xhci_clk)) + return PTR_ERR(mtk->xhci_clk); + mtk->ref_clk = devm_clk_get_optional(dev, "ref_ck"); if (IS_ERR(mtk->ref_clk)) return PTR_ERR(mtk->ref_clk); @@ -244,6 +248,12 @@ static int xhci_mtk_clks_enable(struct xhci_hcd_mtk *mtk) goto sys_clk_err; } + ret = clk_prepare_enable(mtk->xhci_clk); + if (ret) { + dev_err(mtk->dev, "failed to enable xhci_clk\n"); + goto xhci_clk_err; + } + ret = clk_prepare_enable(mtk->mcu_clk); if (ret) { dev_err(mtk->dev, "failed to enable mcu_clk\n"); @@ -261,6 +271,8 @@ static int xhci_mtk_clks_enable(struct xhci_hcd_mtk *mtk) dma_clk_err: clk_disable_unprepare(mtk->mcu_clk); mcu_clk_err: + clk_disable_unprepare(mtk->xhci_clk); +xhci_clk_err: clk_disable_unprepare(mtk->sys_clk); sys_clk_err: clk_disable_unprepare(mtk->ref_clk); @@ -272,6 +284,7 @@ static void xhci_mtk_clks_disable(struct xhci_hcd_mtk *mtk) { clk_disable_unprepare(mtk->dma_clk); clk_disable_unprepare(mtk->mcu_clk); + clk_disable_unprepare(mtk->xhci_clk); clk_disable_unprepare(mtk->sys_clk); clk_disable_unprepare(mtk->ref_clk); } @@ -475,11 +488,6 @@ static int xhci_mtk_probe(struct platform_device *pdev) goto disable_clk; } - /* Initialize dma_mask and coherent_dma_mask to 32-bits */ - ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); - if (ret) - goto disable_clk; - hcd = usb_create_hcd(driver, dev, dev_name(dev)); if (!hcd) { ret = -ENOMEM; diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h index 8be8c5f7ff62..5ac458b7d2e0 100644 --- a/drivers/usb/host/xhci-mtk.h +++ b/drivers/usb/host/xhci-mtk.h @@ -139,6 +139,7 @@ struct xhci_hcd_mtk { struct regulator *vusb33; struct regulator *vbus; struct clk *sys_clk; /* sys and mac clock */ + struct clk *xhci_clk; struct clk *ref_clk; struct clk *mcu_clk; struct clk *dma_clk; diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 1e0236e90687..4917c5b033fa 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -48,6 +48,7 @@ #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI 0x15e9 #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI 0x15ec #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI 0x15f0 +#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13 #define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9 #define PCI_DEVICE_ID_AMD_PROMONTORYA_3 0x43ba @@ -212,7 +213,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI || pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI || - pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI)) + pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI)) xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; if (pdev->vendor == PCI_VENDOR_ID_ETRON && @@ -517,6 +519,18 @@ static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated) retval = xhci_resume(xhci, hibernated); return retval; } + +static void xhci_pci_shutdown(struct usb_hcd *hcd) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + + xhci_shutdown(hcd); + + /* Yet another workaround for spurious wakeups at shutdown with HSW */ + if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) + pci_set_power_state(pdev, PCI_D3hot); +} #endif /* CONFIG_PM */ /*-------------------------------------------------------------------------*/ @@ -554,6 +568,7 @@ static int __init xhci_pci_init(void) #ifdef CONFIG_PM xhci_pci_hc_driver.pci_suspend = xhci_pci_suspend; xhci_pci_hc_driver.pci_resume = xhci_pci_resume; + xhci_pci_hc_driver.shutdown = xhci_pci_shutdown; #endif return pci_register_driver(&xhci_pci_driver); } diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 998241f5fce3..d90cd5ec09cf 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -66,12 +66,14 @@ static int xhci_priv_resume_quirk(struct usb_hcd *hcd) static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci) { + struct xhci_plat_priv *priv = xhci_to_priv(xhci); + /* * As of now platform drivers don't provide MSI support so we ensure * 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_PLAT; + xhci->quirks |= XHCI_PLAT | priv->quirks; } /* called during probe() after chip reset completes */ @@ -103,17 +105,11 @@ static const struct xhci_plat_priv xhci_plat_marvell_armada3700 = { }; static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = { - .firmware_name = XHCI_RCAR_FIRMWARE_NAME_V1, - .init_quirk = xhci_rcar_init_quirk, - .plat_start = xhci_rcar_start, - .resume_quirk = xhci_rcar_resume_quirk, + SET_XHCI_PLAT_PRIV_FOR_RCAR(XHCI_RCAR_FIRMWARE_NAME_V1) }; static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = { - .firmware_name = XHCI_RCAR_FIRMWARE_NAME_V3, - .init_quirk = xhci_rcar_init_quirk, - .plat_start = xhci_rcar_start, - .resume_quirk = xhci_rcar_resume_quirk, + SET_XHCI_PLAT_PRIV_FOR_RCAR(XHCI_RCAR_FIRMWARE_NAME_V3) }; static const struct of_device_id usb_xhci_of_match[] = { @@ -307,7 +303,6 @@ static int xhci_plat_probe(struct platform_device *pdev) ret = usb_phy_init(hcd->usb_phy); if (ret) goto put_usb3_hcd; - hcd->skip_phy_initialization = 1; } hcd->tpl_support = of_usb_host_tpl_support(sysdev->of_node); diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h index ae29f22ff5bd..5681723fc9cd 100644 --- a/drivers/usb/host/xhci-plat.h +++ b/drivers/usb/host/xhci-plat.h @@ -12,10 +12,12 @@ struct xhci_plat_priv { const char *firmware_name; + unsigned long long quirks; void (*plat_start)(struct usb_hcd *); int (*init_quirk)(struct usb_hcd *); int (*resume_quirk)(struct usb_hcd *); }; #define hcd_to_xhci_priv(h) ((struct xhci_plat_priv *)hcd_to_xhci(h)->priv) +#define xhci_to_priv(x) ((struct xhci_plat_priv *)(x)->priv) #endif /* _XHCI_PLAT_H */ diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c index 8616c52849c6..c1025d321a41 100644 --- a/drivers/usb/host/xhci-rcar.c +++ b/drivers/usb/host/xhci-rcar.c @@ -104,16 +104,7 @@ static int xhci_rcar_is_gen2(struct device *dev) return of_device_is_compatible(node, "renesas,xhci-r8a7790") || of_device_is_compatible(node, "renesas,xhci-r8a7791") || of_device_is_compatible(node, "renesas,xhci-r8a7793") || - of_device_is_compatible(node, "renensas,rcar-gen2-xhci"); -} - -static int xhci_rcar_is_gen3(struct device *dev) -{ - struct device_node *node = dev->of_node; - - return of_device_is_compatible(node, "renesas,xhci-r8a7795") || - of_device_is_compatible(node, "renesas,xhci-r8a7796") || - of_device_is_compatible(node, "renesas,rcar-gen3-xhci"); + of_device_is_compatible(node, "renesas,rcar-gen2-xhci"); } void xhci_rcar_start(struct usb_hcd *hcd) @@ -226,32 +217,13 @@ static bool xhci_rcar_wait_for_pll_active(struct usb_hcd *hcd) /* This function needs to initialize a "phy" of usb before */ int xhci_rcar_init_quirk(struct usb_hcd *hcd) { - struct xhci_hcd *xhci = hcd_to_xhci(hcd); - /* If hcd->regs is NULL, we don't just call the following function */ if (!hcd->regs) return 0; - /* - * On R-Car Gen2 and Gen3, the AC64 bit (bit 0) of HCCPARAMS1 is set - * to 1. However, these SoCs don't support 64-bit address memory - * pointers. So, this driver clears the AC64 bit of xhci->hcc_params - * to call dma_set_coherent_mask(dev, DMA_BIT_MASK(32)) in - * xhci_gen_setup(). - * - * And, since the firmware/internal CPU control the USBSTS.STS_HALT - * and the process speed is down when the roothub port enters U3, - * long delay for the handshake of STS_HALT is neeed in xhci_suspend(). - */ - if (xhci_rcar_is_gen2(hcd->self.controller) || - xhci_rcar_is_gen3(hcd->self.controller)) { - xhci->quirks |= XHCI_NO_64BIT_SUPPORT | XHCI_SLOW_SUSPEND; - } - if (!xhci_rcar_wait_for_pll_active(hcd)) return -ETIMEDOUT; - xhci->quirks |= XHCI_TRUST_TX_LENGTH; return xhci_rcar_download_firmware(hcd); } diff --git a/drivers/usb/host/xhci-rcar.h b/drivers/usb/host/xhci-rcar.h index 804b6ab4246f..012744a63a49 100644 --- a/drivers/usb/host/xhci-rcar.h +++ b/drivers/usb/host/xhci-rcar.h @@ -31,4 +31,25 @@ static inline int xhci_rcar_resume_quirk(struct usb_hcd *hcd) return 0; } #endif + +/* + * On R-Car Gen2 and Gen3, the AC64 bit (bit 0) of HCCPARAMS1 is set + * to 1. However, these SoCs don't support 64-bit address memory + * pointers. So, this driver clears the AC64 bit of xhci->hcc_params + * to call dma_set_coherent_mask(dev, DMA_BIT_MASK(32)) in + * xhci_gen_setup() by using the XHCI_NO_64BIT_SUPPORT quirk. + * + * And, since the firmware/internal CPU control the USBSTS.STS_HALT + * and the process speed is down when the roothub port enters U3, + * long delay for the handshake of STS_HALT is neeed in xhci_suspend() + * by using the XHCI_SLOW_SUSPEND quirk. + */ +#define SET_XHCI_PLAT_PRIV_FOR_RCAR(firmware) \ + .firmware_name = firmware, \ + .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_TRUST_TX_LENGTH | \ + XHCI_SLOW_SUSPEND, \ + .init_quirk = xhci_rcar_init_quirk, \ + .plat_start = xhci_rcar_start, \ + .resume_quirk = xhci_rcar_resume_quirk, + #endif /* _XHCI_RCAR_H */ diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 9741cdeea9d7..d23f7408c81f 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -280,6 +280,9 @@ void xhci_ring_cmd_db(struct xhci_hcd *xhci) return; xhci_dbg(xhci, "// Ding dong!\n"); + + trace_xhci_ring_host_doorbell(0, DB_VALUE_HOST); + writel(DB_VALUE_HOST, &xhci->dba->doorbell[0]); /* Flush PCI posted writes */ readl(&xhci->dba->doorbell[0]); @@ -401,6 +404,9 @@ void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, if ((ep_state & EP_STOP_CMD_PENDING) || (ep_state & SET_DEQ_PENDING) || (ep_state & EP_HALTED) || (ep_state & EP_CLEARING_TT)) return; + + trace_xhci_ring_ep_doorbell(slot_id, DB_VALUE(ep_index, stream_id)); + writel(DB_VALUE(ep_index, stream_id), db_addr); /* The CPU has better things to do at this point than wait for a * write-posting flush. It'll get there soon enough. @@ -651,10 +657,8 @@ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci, } xhci_urb_free_priv(urb_priv); usb_hcd_unlink_urb_from_ep(hcd, urb); - spin_unlock(&xhci->lock); trace_xhci_urb_giveback(urb); usb_hcd_giveback_urb(hcd, urb, status); - spin_lock(&xhci->lock); } static void xhci_unmap_td_bounce_buffer(struct xhci_hcd *xhci, @@ -1624,7 +1628,6 @@ static void handle_port_status(struct xhci_hcd *xhci, slot_id = xhci_find_slot_id_by_port(hcd, xhci, hcd_portnum + 1); if (slot_id && xhci->devs[slot_id]) xhci->devs[slot_id]->flags |= VDEV_PORT_ERROR; - bus_state->port_remote_wakeup &= ~(1 << hcd_portnum); } if ((portsc & PORT_PLC) && (portsc & PORT_PLS_MASK) == XDEV_RESUME) { @@ -1644,6 +1647,7 @@ static void handle_port_status(struct xhci_hcd *xhci, */ bus_state->port_remote_wakeup |= 1 << hcd_portnum; xhci_test_and_clear_bit(xhci, port, PORT_PLC); + usb_hcd_start_port_resume(&hcd->self, hcd_portnum); xhci_set_link_state(xhci, port, XDEV_U0); /* Need to wait until the next link state change * indicates the device is actually in U0. @@ -1684,7 +1688,6 @@ static void handle_port_status(struct xhci_hcd *xhci, if (slot_id && xhci->devs[slot_id]) xhci_ring_device(xhci, slot_id); if (bus_state->port_remote_wakeup & (1 << hcd_portnum)) { - bus_state->port_remote_wakeup &= ~(1 << hcd_portnum); xhci_test_and_clear_bit(xhci, port, PORT_PLC); usb_wakeup_notification(hcd->self.root_hub, hcd_portnum + 1); @@ -2378,7 +2381,8 @@ static int handle_tx_event(struct xhci_hcd *xhci, case COMP_SUCCESS: if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) break; - if (xhci->quirks & XHCI_TRUST_TX_LENGTH) + if (xhci->quirks & XHCI_TRUST_TX_LENGTH || + ep_ring->last_td_was_short) trb_comp_code = COMP_SHORT_PACKET; else xhci_warn_ratelimited(xhci, @@ -2741,6 +2745,42 @@ static int xhci_handle_event(struct xhci_hcd *xhci) } /* + * Update Event Ring Dequeue Pointer: + * - When all events have finished + * - To avoid "Event Ring Full Error" condition + */ +static void xhci_update_erst_dequeue(struct xhci_hcd *xhci, + union xhci_trb *event_ring_deq) +{ + u64 temp_64; + dma_addr_t deq; + + temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + /* If necessary, update the HW's version of the event ring deq ptr. */ + if (event_ring_deq != xhci->event_ring->dequeue) { + deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg, + xhci->event_ring->dequeue); + if (deq == 0) + xhci_warn(xhci, "WARN something wrong with SW event ring dequeue ptr\n"); + /* + * Per 4.9.4, Software writes to the ERDP register shall + * always advance the Event Ring Dequeue Pointer value. + */ + if ((temp_64 & (u64) ~ERST_PTR_MASK) == + ((u64) deq & (u64) ~ERST_PTR_MASK)) + return; + + /* Update HC event ring dequeue pointer */ + temp_64 &= ERST_PTR_MASK; + temp_64 |= ((u64) deq & (u64) ~ERST_PTR_MASK); + } + + /* Clear the event handler busy flag (RW1C) */ + temp_64 |= ERST_EHB; + xhci_write_64(xhci, temp_64, &xhci->ir_set->erst_dequeue); +} + +/* * xHCI spec says we can get an interrupt, and if the HC has an error condition, * we might get bad data out of the event ring. Section 4.10.2.7 has a list of * indicators of an event TRB error, but we check the status *first* to be safe. @@ -2751,9 +2791,9 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd) union xhci_trb *event_ring_deq; irqreturn_t ret = IRQ_NONE; unsigned long flags; - dma_addr_t deq; u64 temp_64; u32 status; + int event_loop = 0; spin_lock_irqsave(&xhci->lock, flags); /* Check if the xHC generated the interrupt, or the irq is shared */ @@ -2807,24 +2847,14 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd) /* FIXME this should be a delayed service routine * that clears the EHB. */ - while (xhci_handle_event(xhci) > 0) {} - - temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); - /* If necessary, update the HW's version of the event ring deq ptr. */ - if (event_ring_deq != xhci->event_ring->dequeue) { - deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg, - xhci->event_ring->dequeue); - if (deq == 0) - xhci_warn(xhci, "WARN something wrong with SW event " - "ring dequeue ptr.\n"); - /* Update HC event ring dequeue pointer */ - temp_64 &= ERST_PTR_MASK; - temp_64 |= ((u64) deq & (u64) ~ERST_PTR_MASK); + while (xhci_handle_event(xhci) > 0) { + if (event_loop++ < TRBS_PER_SEGMENT / 2) + continue; + xhci_update_erst_dequeue(xhci, event_ring_deq); + event_loop = 0; } - /* Clear the event handler busy flag (RW1C); event ring is empty. */ - temp_64 |= ERST_EHB; - xhci_write_64(xhci, temp_64, &xhci->ir_set->erst_dequeue); + xhci_update_erst_dequeue(xhci, event_ring_deq); ret = IRQ_HANDLED; out: @@ -3202,10 +3232,10 @@ static int xhci_align_td(struct xhci_hcd *xhci, struct urb *urb, u32 enqd_len, if (usb_urb_dir_out(urb)) { len = sg_pcopy_to_buffer(urb->sg, urb->num_sgs, seg->bounce_buf, new_buff_len, enqd_len); - if (len != seg->bounce_len) + if (len != new_buff_len) xhci_warn(xhci, "WARN Wrong bounce buffer write length: %zu != %d\n", - len, seg->bounce_len); + len, new_buff_len); seg->bounce_dma = dma_map_single(dev, seg->bounce_buf, max_pkt, DMA_TO_DEVICE); } else { @@ -3330,6 +3360,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, if (xhci_urb_suitable_for_idt(urb)) { memcpy(&send_addr, urb->transfer_buffer, trb_buff_len); + le64_to_cpus(&send_addr); field |= TRB_IDT; } } @@ -3475,6 +3506,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, if (xhci_urb_suitable_for_idt(urb)) { memcpy(&addr, urb->transfer_buffer, urb->transfer_buffer_length); + le64_to_cpus(&addr); field |= TRB_IDT; } else { addr = (u64) urb->transfer_dma; diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index dafc65911fc0..8163aefc6c6b 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -11,6 +11,7 @@ #include <linux/dma-mapping.h> #include <linux/firmware.h> #include <linux/interrupt.h> +#include <linux/iopoll.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of_device.h> @@ -38,23 +39,30 @@ #define XUSB_CFG_4 0x010 #define XUSB_BASE_ADDR_SHIFT 15 #define XUSB_BASE_ADDR_MASK 0x1ffff +#define XUSB_CFG_16 0x040 +#define XUSB_CFG_24 0x060 +#define XUSB_CFG_AXI_CFG 0x0f8 #define XUSB_CFG_ARU_C11_CSBRANGE 0x41c +#define XUSB_CFG_ARU_CONTEXT 0x43c +#define XUSB_CFG_ARU_CONTEXT_HS_PLS 0x478 +#define XUSB_CFG_ARU_CONTEXT_FS_PLS 0x47c +#define XUSB_CFG_ARU_CONTEXT_HSFS_SPEED 0x480 +#define XUSB_CFG_ARU_CONTEXT_HSFS_PP 0x484 #define XUSB_CFG_CSB_BASE_ADDR 0x800 /* FPCI mailbox registers */ -#define XUSB_CFG_ARU_MBOX_CMD 0x0e4 +/* XUSB_CFG_ARU_MBOX_CMD */ #define MBOX_DEST_FALC BIT(27) #define MBOX_DEST_PME BIT(28) #define MBOX_DEST_SMI BIT(29) #define MBOX_DEST_XHCI BIT(30) #define MBOX_INT_EN BIT(31) -#define XUSB_CFG_ARU_MBOX_DATA_IN 0x0e8 +/* XUSB_CFG_ARU_MBOX_DATA_IN and XUSB_CFG_ARU_MBOX_DATA_OUT */ #define CMD_DATA_SHIFT 0 #define CMD_DATA_MASK 0xffffff #define CMD_TYPE_SHIFT 24 #define CMD_TYPE_MASK 0xff -#define XUSB_CFG_ARU_MBOX_DATA_OUT 0x0ec -#define XUSB_CFG_ARU_MBOX_OWNER 0x0f0 +/* XUSB_CFG_ARU_MBOX_OWNER */ #define MBOX_OWNER_NONE 0 #define MBOX_OWNER_FW 1 #define MBOX_OWNER_SW 2 @@ -63,11 +71,20 @@ #define MBOX_SMI_INTR_EN BIT(3) /* IPFS registers */ +#define IPFS_XUSB_HOST_MSI_BAR_SZ_0 0x0c0 +#define IPFS_XUSB_HOST_MSI_AXI_BAR_ST_0 0x0c4 +#define IPFS_XUSB_HOST_MSI_FPCI_BAR_ST_0 0x0c8 +#define IPFS_XUSB_HOST_MSI_VEC0_0 0x100 +#define IPFS_XUSB_HOST_MSI_EN_VEC0_0 0x140 #define IPFS_XUSB_HOST_CONFIGURATION_0 0x180 #define IPFS_EN_FPCI BIT(0) +#define IPFS_XUSB_HOST_FPCI_ERROR_MASKS_0 0x184 #define IPFS_XUSB_HOST_INTR_MASK_0 0x188 #define IPFS_IP_INT_MASK BIT(16) +#define IPFS_XUSB_HOST_INTR_ENABLE_0 0x198 +#define IPFS_XUSB_HOST_UFPCI_CONFIG_0 0x19c #define IPFS_XUSB_HOST_CLKGATE_HYSTERESIS_0 0x1bc +#define IPFS_XUSB_HOST_MCCIF_FIFOCTRL_0 0x1dc #define CSB_PAGE_SELECT_MASK 0x7fffff #define CSB_PAGE_SELECT_SHIFT 9 @@ -102,6 +119,8 @@ #define L2IMEMOP_ACTION_SHIFT 24 #define L2IMEMOP_INVALIDATE_ALL (0x40 << L2IMEMOP_ACTION_SHIFT) #define L2IMEMOP_LOAD_LOCKED_RESULT (0x11 << L2IMEMOP_ACTION_SHIFT) +#define XUSB_CSB_MEMPOOL_L2IMEMOP_RESULT 0x101a18 +#define L2IMEMOP_RESULT_VLD BIT(31) #define XUSB_CSB_MP_APMAP 0x10181c #define APMAP_BOOTPATH BIT(31) @@ -146,12 +165,32 @@ struct tegra_xusb_phy_type { unsigned int num; }; +struct tegra_xusb_mbox_regs { + u16 cmd; + u16 data_in; + u16 data_out; + u16 owner; +}; + +struct tegra_xusb_context_soc { + struct { + const unsigned int *offsets; + unsigned int num_offsets; + } ipfs; + + struct { + const unsigned int *offsets; + unsigned int num_offsets; + } fpci; +}; + struct tegra_xusb_soc { const char *firmware; const char * const *supply_names; unsigned int num_supplies; const struct tegra_xusb_phy_type *phy_types; unsigned int num_types; + const struct tegra_xusb_context_soc *context; struct { struct { @@ -160,10 +199,17 @@ struct tegra_xusb_soc { } usb2, ulpi, hsic, usb3; } ports; + struct tegra_xusb_mbox_regs mbox; + bool scale_ss_clock; bool has_ipfs; }; +struct tegra_xusb_context { + u32 *ipfs; + u32 *fpci; +}; + struct tegra_xusb { struct device *dev; void __iomem *regs; @@ -210,6 +256,8 @@ struct tegra_xusb { void *virt; dma_addr_t phys; } fw; + + struct tegra_xusb_context context; }; static struct hc_driver __read_mostly tegra_xhci_hc_driver; @@ -395,15 +443,15 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra, * ACK/NAK messages. */ if (!(msg->cmd == MBOX_CMD_ACK || msg->cmd == MBOX_CMD_NAK)) { - value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER); + value = fpci_readl(tegra, tegra->soc->mbox.owner); if (value != MBOX_OWNER_NONE) { dev_err(tegra->dev, "mailbox is busy\n"); return -EBUSY; } - fpci_writel(tegra, MBOX_OWNER_SW, XUSB_CFG_ARU_MBOX_OWNER); + fpci_writel(tegra, MBOX_OWNER_SW, tegra->soc->mbox.owner); - value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER); + value = fpci_readl(tegra, tegra->soc->mbox.owner); if (value != MBOX_OWNER_SW) { dev_err(tegra->dev, "failed to acquire mailbox\n"); return -EBUSY; @@ -413,17 +461,17 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra, } value = tegra_xusb_mbox_pack(msg); - fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_DATA_IN); + fpci_writel(tegra, value, tegra->soc->mbox.data_in); - value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_CMD); + value = fpci_readl(tegra, tegra->soc->mbox.cmd); value |= MBOX_INT_EN | MBOX_DEST_FALC; - fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_CMD); + fpci_writel(tegra, value, tegra->soc->mbox.cmd); if (wait_for_idle) { unsigned long timeout = jiffies + msecs_to_jiffies(250); while (time_before(jiffies, timeout)) { - value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER); + value = fpci_readl(tegra, tegra->soc->mbox.owner); if (value == MBOX_OWNER_NONE) break; @@ -431,7 +479,7 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra, } if (time_after(jiffies, timeout)) - value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER); + value = fpci_readl(tegra, tegra->soc->mbox.owner); if (value != MBOX_OWNER_NONE) return -ETIMEDOUT; @@ -598,16 +646,16 @@ static irqreturn_t tegra_xusb_mbox_thread(int irq, void *data) mutex_lock(&tegra->lock); - value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_DATA_OUT); + value = fpci_readl(tegra, tegra->soc->mbox.data_out); tegra_xusb_mbox_unpack(&msg, value); - value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_CMD); + value = fpci_readl(tegra, tegra->soc->mbox.cmd); value &= ~MBOX_DEST_SMI; - fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_CMD); + fpci_writel(tegra, value, tegra->soc->mbox.cmd); /* clear mailbox owner if no ACK/NAK is required */ if (!tegra_xusb_mbox_cmd_requires_ack(msg.cmd)) - fpci_writel(tegra, MBOX_OWNER_NONE, XUSB_CFG_ARU_MBOX_OWNER); + fpci_writel(tegra, MBOX_OWNER_NONE, tegra->soc->mbox.owner); tegra_xusb_mbox_handle(tegra, &msg); @@ -615,9 +663,9 @@ static irqreturn_t tegra_xusb_mbox_thread(int irq, void *data) return IRQ_HANDLED; } -static void tegra_xusb_config(struct tegra_xusb *tegra, - struct resource *regs) +static void tegra_xusb_config(struct tegra_xusb *tegra) { + u32 regs = tegra->hcd->rsrc_start; u32 value; if (tegra->soc->has_ipfs) { @@ -631,7 +679,7 @@ static void tegra_xusb_config(struct tegra_xusb *tegra, /* Program BAR0 space */ value = fpci_readl(tegra, XUSB_CFG_4); value &= ~(XUSB_BASE_ADDR_MASK << XUSB_BASE_ADDR_SHIFT); - value |= regs->start & (XUSB_BASE_ADDR_MASK << XUSB_BASE_ADDR_SHIFT); + value |= regs & (XUSB_BASE_ADDR_MASK << XUSB_BASE_ADDR_SHIFT); fpci_writel(tegra, value, XUSB_CFG_4); usleep_range(100, 200); @@ -755,7 +803,6 @@ static int tegra_xusb_runtime_suspend(struct device *dev) { struct tegra_xusb *tegra = dev_get_drvdata(dev); - tegra_xusb_phy_disable(tegra); regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies); tegra_xusb_clk_disable(tegra); @@ -779,32 +826,41 @@ static int tegra_xusb_runtime_resume(struct device *dev) goto disable_clk; } - err = tegra_xusb_phy_enable(tegra); - if (err < 0) { - dev_err(dev, "failed to enable PHYs: %d\n", err); - goto disable_regulator; - } - return 0; -disable_regulator: - regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies); disable_clk: tegra_xusb_clk_disable(tegra); return err; } -static int tegra_xusb_load_firmware(struct tegra_xusb *tegra) +#ifdef CONFIG_PM_SLEEP +static int tegra_xusb_init_context(struct tegra_xusb *tegra) +{ + const struct tegra_xusb_context_soc *soc = tegra->soc->context; + + tegra->context.ipfs = devm_kcalloc(tegra->dev, soc->ipfs.num_offsets, + sizeof(u32), GFP_KERNEL); + if (!tegra->context.ipfs) + return -ENOMEM; + + tegra->context.fpci = devm_kcalloc(tegra->dev, soc->ipfs.num_offsets, + sizeof(u32), GFP_KERNEL); + if (!tegra->context.fpci) + return -ENOMEM; + + return 0; +} +#else +static inline int tegra_xusb_init_context(struct tegra_xusb *tegra) +{ + return 0; +} +#endif + +static int tegra_xusb_request_firmware(struct tegra_xusb *tegra) { - unsigned int code_tag_blocks, code_size_blocks, code_blocks; struct tegra_xusb_fw_header *header; - struct device *dev = tegra->dev; const struct firmware *fw; - unsigned long timeout; - time64_t timestamp; - struct tm time; - u64 address; - u32 value; int err; err = request_firmware(&fw, tegra->soc->firmware, tegra->dev); @@ -829,6 +885,26 @@ static int tegra_xusb_load_firmware(struct tegra_xusb *tegra) memcpy(tegra->fw.virt, fw->data, tegra->fw.size); release_firmware(fw); + return 0; +} + +static int tegra_xusb_load_firmware(struct tegra_xusb *tegra) +{ + unsigned int code_tag_blocks, code_size_blocks, code_blocks; + struct xhci_cap_regs __iomem *cap = tegra->regs; + struct tegra_xusb_fw_header *header; + struct device *dev = tegra->dev; + struct xhci_op_regs __iomem *op; + unsigned long timeout; + time64_t timestamp; + struct tm time; + u64 address; + u32 value; + int err; + + header = (struct tegra_xusb_fw_header *)tegra->fw.virt; + op = tegra->regs + HC_LENGTH(readl(&cap->hc_capbase)); + if (csb_readl(tegra, XUSB_CSB_MP_ILOAD_BASE_LO) != 0) { dev_info(dev, "Firmware already loaded, Falcon state %#x\n", csb_readl(tegra, XUSB_FALC_CPUCTL)); @@ -883,26 +959,37 @@ static int tegra_xusb_load_firmware(struct tegra_xusb *tegra) csb_writel(tegra, 0, XUSB_FALC_DMACTL); - msleep(50); + /* wait for RESULT_VLD to get set */ +#define tegra_csb_readl(offset) csb_readl(tegra, offset) + err = readx_poll_timeout(tegra_csb_readl, + XUSB_CSB_MEMPOOL_L2IMEMOP_RESULT, value, + value & L2IMEMOP_RESULT_VLD, 100, 10000); + if (err < 0) { + dev_err(dev, "DMA controller not ready %#010x\n", value); + return err; + } +#undef tegra_csb_readl csb_writel(tegra, le32_to_cpu(header->boot_codetag), XUSB_FALC_BOOTVEC); - /* Boot Falcon CPU and wait for it to enter the STOPPED (idle) state. */ - timeout = jiffies + msecs_to_jiffies(5); - + /* Boot Falcon CPU and wait for USBSTS_CNR to get cleared. */ csb_writel(tegra, CPUCTL_STARTCPU, XUSB_FALC_CPUCTL); - while (time_before(jiffies, timeout)) { - if (csb_readl(tegra, XUSB_FALC_CPUCTL) == CPUCTL_STATE_STOPPED) + timeout = jiffies + msecs_to_jiffies(200); + + do { + value = readl(&op->status); + if ((value & STS_CNR) == 0) break; - usleep_range(100, 200); - } + usleep_range(1000, 2000); + } while (time_is_after_jiffies(timeout)); - if (csb_readl(tegra, XUSB_FALC_CPUCTL) != CPUCTL_STATE_STOPPED) { - dev_err(dev, "Falcon failed to start, state: %#x\n", - csb_readl(tegra, XUSB_FALC_CPUCTL)); + value = readl(&op->status); + if (value & STS_CNR) { + value = csb_readl(tegra, XUSB_FALC_CPUCTL); + dev_err(dev, "XHCI controller not read: %#010x\n", value); return -EIO; } @@ -967,11 +1054,37 @@ static int tegra_xusb_powerdomain_init(struct device *dev, return 0; } -static int tegra_xusb_probe(struct platform_device *pdev) +static int __tegra_xusb_enable_firmware_messages(struct tegra_xusb *tegra) { struct tegra_xusb_mbox_msg msg; - struct resource *res, *regs; + int err; + + /* Enable firmware messages from controller. */ + msg.cmd = MBOX_CMD_MSG_ENABLED; + msg.data = 0; + + err = tegra_xusb_mbox_send(tegra, &msg); + if (err < 0) + dev_err(tegra->dev, "failed to enable messages: %d\n", err); + + return err; +} + +static int tegra_xusb_enable_firmware_messages(struct tegra_xusb *tegra) +{ + int err; + + mutex_lock(&tegra->lock); + err = __tegra_xusb_enable_firmware_messages(tegra); + mutex_unlock(&tegra->lock); + + return err; +} + +static int tegra_xusb_probe(struct platform_device *pdev) +{ struct tegra_xusb *tegra; + struct resource *regs; struct xhci_hcd *xhci; unsigned int i, j, k; struct phy *phy; @@ -987,19 +1100,21 @@ static int tegra_xusb_probe(struct platform_device *pdev) mutex_init(&tegra->lock); tegra->dev = &pdev->dev; + err = tegra_xusb_init_context(tegra); + if (err < 0) + return err; + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); tegra->regs = devm_ioremap_resource(&pdev->dev, regs); if (IS_ERR(tegra->regs)) return PTR_ERR(tegra->regs); - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - tegra->fpci_base = devm_ioremap_resource(&pdev->dev, res); + tegra->fpci_base = devm_platform_ioremap_resource(pdev, 1); if (IS_ERR(tegra->fpci_base)) return PTR_ERR(tegra->fpci_base); if (tegra->soc->has_ipfs) { - res = platform_get_resource(pdev, IORESOURCE_MEM, 2); - tegra->ipfs_base = devm_ioremap_resource(&pdev->dev, res); + tegra->ipfs_base = devm_platform_ioremap_resource(pdev, 2); if (IS_ERR(tegra->ipfs_base)) return PTR_ERR(tegra->ipfs_base); } @@ -1128,8 +1243,9 @@ static int tegra_xusb_probe(struct platform_device *pdev) goto put_powerdomains; } - for (i = 0; i < tegra->soc->num_supplies; i++) - tegra->supplies[i].supply = tegra->soc->supply_names[i]; + regulator_bulk_set_supply_names(tegra->supplies, + tegra->soc->supply_names, + tegra->soc->num_supplies); err = devm_regulator_bulk_get(&pdev->dev, tegra->soc->num_supplies, tegra->supplies); @@ -1175,24 +1291,51 @@ static int tegra_xusb_probe(struct platform_device *pdev) goto put_powerdomains; } + tegra->hcd->regs = tegra->regs; + tegra->hcd->rsrc_start = regs->start; + tegra->hcd->rsrc_len = resource_size(regs); + /* * This must happen after usb_create_hcd(), because usb_create_hcd() * will overwrite the drvdata of the device with the hcd it creates. */ platform_set_drvdata(pdev, tegra); + err = tegra_xusb_phy_enable(tegra); + if (err < 0) { + dev_err(&pdev->dev, "failed to enable PHYs: %d\n", err); + goto put_hcd; + } + + /* + * The XUSB Falcon microcontroller can only address 40 bits, so set + * the DMA mask accordingly. + */ + err = dma_set_mask_and_coherent(tegra->dev, DMA_BIT_MASK(40)); + if (err < 0) { + dev_err(&pdev->dev, "failed to set DMA mask: %d\n", err); + goto disable_phy; + } + + err = tegra_xusb_request_firmware(tegra); + if (err < 0) { + dev_err(&pdev->dev, "failed to request firmware: %d\n", err); + goto disable_phy; + } + pm_runtime_enable(&pdev->dev); - if (pm_runtime_enabled(&pdev->dev)) - err = pm_runtime_get_sync(&pdev->dev); - else + + if (!pm_runtime_enabled(&pdev->dev)) err = tegra_xusb_runtime_resume(&pdev->dev); + else + err = pm_runtime_get_sync(&pdev->dev); if (err < 0) { dev_err(&pdev->dev, "failed to enable device: %d\n", err); - goto disable_rpm; + goto free_firmware; } - tegra_xusb_config(tegra, regs); + tegra_xusb_config(tegra); err = tegra_xusb_load_firmware(tegra); if (err < 0) { @@ -1200,10 +1343,6 @@ static int tegra_xusb_probe(struct platform_device *pdev) goto put_rpm; } - tegra->hcd->regs = tegra->regs; - tegra->hcd->rsrc_start = regs->start; - tegra->hcd->rsrc_len = resource_size(regs); - err = usb_add_hcd(tegra->hcd, tegra->xhci_irq, IRQF_SHARED); if (err < 0) { dev_err(&pdev->dev, "failed to add USB HCD: %d\n", err); @@ -1230,21 +1369,12 @@ static int tegra_xusb_probe(struct platform_device *pdev) goto put_usb3; } - mutex_lock(&tegra->lock); - - /* Enable firmware messages from controller. */ - msg.cmd = MBOX_CMD_MSG_ENABLED; - msg.data = 0; - - err = tegra_xusb_mbox_send(tegra, &msg); + err = tegra_xusb_enable_firmware_messages(tegra); if (err < 0) { dev_err(&pdev->dev, "failed to enable messages: %d\n", err); - mutex_unlock(&tegra->lock); goto remove_usb3; } - mutex_unlock(&tegra->lock); - err = devm_request_threaded_irq(&pdev->dev, tegra->mbox_irq, tegra_xusb_mbox_irq, tegra_xusb_mbox_thread, 0, @@ -1265,9 +1395,14 @@ remove_usb2: put_rpm: if (!pm_runtime_status_suspended(&pdev->dev)) tegra_xusb_runtime_suspend(&pdev->dev); -disable_rpm: - pm_runtime_disable(&pdev->dev); +put_hcd: usb_put_hcd(tegra->hcd); +free_firmware: + dma_free_coherent(&pdev->dev, tegra->fw.size, tegra->fw.virt, + tegra->fw.phys); +disable_phy: + tegra_xusb_phy_disable(tegra); + pm_runtime_disable(&pdev->dev); put_powerdomains: if (!of_property_read_bool(pdev->dev.of_node, "power-domains")) { tegra_powergate_power_off(TEGRA_POWERGATE_XUSBC); @@ -1304,28 +1439,184 @@ static int tegra_xusb_remove(struct platform_device *pdev) tegra_xusb_powerdomain_remove(&pdev->dev, tegra); } + tegra_xusb_phy_disable(tegra); + tegra_xusb_padctl_put(tegra->padctl); return 0; } #ifdef CONFIG_PM_SLEEP +static bool xhci_hub_ports_suspended(struct xhci_hub *hub) +{ + struct device *dev = hub->hcd->self.controller; + bool status = true; + unsigned int i; + u32 value; + + for (i = 0; i < hub->num_ports; i++) { + value = readl(hub->ports[i]->addr); + if ((value & PORT_PE) == 0) + continue; + + if ((value & PORT_PLS_MASK) != XDEV_U3) { + dev_info(dev, "%u-%u isn't suspended: %#010x\n", + hub->hcd->self.busnum, i + 1, value); + status = false; + } + } + + return status; +} + +static int tegra_xusb_check_ports(struct tegra_xusb *tegra) +{ + struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd); + unsigned long flags; + int err = 0; + + spin_lock_irqsave(&xhci->lock, flags); + + if (!xhci_hub_ports_suspended(&xhci->usb2_rhub) || + !xhci_hub_ports_suspended(&xhci->usb3_rhub)) + err = -EBUSY; + + spin_unlock_irqrestore(&xhci->lock, flags); + + return err; +} + +static void tegra_xusb_save_context(struct tegra_xusb *tegra) +{ + const struct tegra_xusb_context_soc *soc = tegra->soc->context; + struct tegra_xusb_context *ctx = &tegra->context; + unsigned int i; + + if (soc->ipfs.num_offsets > 0) { + for (i = 0; i < soc->ipfs.num_offsets; i++) + ctx->ipfs[i] = ipfs_readl(tegra, soc->ipfs.offsets[i]); + } + + if (soc->fpci.num_offsets > 0) { + for (i = 0; i < soc->fpci.num_offsets; i++) + ctx->fpci[i] = fpci_readl(tegra, soc->fpci.offsets[i]); + } +} + +static void tegra_xusb_restore_context(struct tegra_xusb *tegra) +{ + const struct tegra_xusb_context_soc *soc = tegra->soc->context; + struct tegra_xusb_context *ctx = &tegra->context; + unsigned int i; + + if (soc->fpci.num_offsets > 0) { + for (i = 0; i < soc->fpci.num_offsets; i++) + fpci_writel(tegra, ctx->fpci[i], soc->fpci.offsets[i]); + } + + if (soc->ipfs.num_offsets > 0) { + for (i = 0; i < soc->ipfs.num_offsets; i++) + ipfs_writel(tegra, ctx->ipfs[i], soc->ipfs.offsets[i]); + } +} + +static int tegra_xusb_enter_elpg(struct tegra_xusb *tegra, bool wakeup) +{ + struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd); + int err; + + err = tegra_xusb_check_ports(tegra); + if (err < 0) { + dev_err(tegra->dev, "not all ports suspended: %d\n", err); + return err; + } + + err = xhci_suspend(xhci, wakeup); + if (err < 0) { + dev_err(tegra->dev, "failed to suspend XHCI: %d\n", err); + return err; + } + + tegra_xusb_save_context(tegra); + tegra_xusb_phy_disable(tegra); + tegra_xusb_clk_disable(tegra); + + return 0; +} + +static int tegra_xusb_exit_elpg(struct tegra_xusb *tegra, bool wakeup) +{ + struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd); + int err; + + err = tegra_xusb_clk_enable(tegra); + if (err < 0) { + dev_err(tegra->dev, "failed to enable clocks: %d\n", err); + return err; + } + + err = tegra_xusb_phy_enable(tegra); + if (err < 0) { + dev_err(tegra->dev, "failed to enable PHYs: %d\n", err); + goto disable_clk; + } + + tegra_xusb_config(tegra); + tegra_xusb_restore_context(tegra); + + err = tegra_xusb_load_firmware(tegra); + if (err < 0) { + dev_err(tegra->dev, "failed to load firmware: %d\n", err); + goto disable_phy; + } + + err = __tegra_xusb_enable_firmware_messages(tegra); + if (err < 0) { + dev_err(tegra->dev, "failed to enable messages: %d\n", err); + goto disable_phy; + } + + err = xhci_resume(xhci, true); + if (err < 0) { + dev_err(tegra->dev, "failed to resume XHCI: %d\n", err); + goto disable_phy; + } + + return 0; + +disable_phy: + tegra_xusb_phy_disable(tegra); +disable_clk: + tegra_xusb_clk_disable(tegra); + return err; +} + static int tegra_xusb_suspend(struct device *dev) { struct tegra_xusb *tegra = dev_get_drvdata(dev); - struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd); bool wakeup = device_may_wakeup(dev); + int err; + + synchronize_irq(tegra->mbox_irq); - /* TODO: Powergate controller across suspend/resume. */ - return xhci_suspend(xhci, wakeup); + mutex_lock(&tegra->lock); + err = tegra_xusb_enter_elpg(tegra, wakeup); + mutex_unlock(&tegra->lock); + + return err; } static int tegra_xusb_resume(struct device *dev) { struct tegra_xusb *tegra = dev_get_drvdata(dev); - struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd); + bool wakeup = device_may_wakeup(dev); + int err; - return xhci_resume(xhci, 0); + mutex_lock(&tegra->lock); + err = tegra_xusb_exit_elpg(tegra, wakeup); + mutex_unlock(&tegra->lock); + + return err; } #endif @@ -1352,12 +1643,50 @@ static const struct tegra_xusb_phy_type tegra124_phy_types[] = { { .name = "hsic", .num = 2, }, }; +static const unsigned int tegra124_xusb_context_ipfs[] = { + IPFS_XUSB_HOST_MSI_BAR_SZ_0, + IPFS_XUSB_HOST_MSI_BAR_SZ_0, + IPFS_XUSB_HOST_MSI_AXI_BAR_ST_0, + IPFS_XUSB_HOST_MSI_FPCI_BAR_ST_0, + IPFS_XUSB_HOST_MSI_VEC0_0, + IPFS_XUSB_HOST_MSI_EN_VEC0_0, + IPFS_XUSB_HOST_FPCI_ERROR_MASKS_0, + IPFS_XUSB_HOST_INTR_MASK_0, + IPFS_XUSB_HOST_INTR_ENABLE_0, + IPFS_XUSB_HOST_UFPCI_CONFIG_0, + IPFS_XUSB_HOST_CLKGATE_HYSTERESIS_0, + IPFS_XUSB_HOST_MCCIF_FIFOCTRL_0, +}; + +static const unsigned int tegra124_xusb_context_fpci[] = { + XUSB_CFG_ARU_CONTEXT_HS_PLS, + XUSB_CFG_ARU_CONTEXT_FS_PLS, + XUSB_CFG_ARU_CONTEXT_HSFS_SPEED, + XUSB_CFG_ARU_CONTEXT_HSFS_PP, + XUSB_CFG_ARU_CONTEXT, + XUSB_CFG_AXI_CFG, + XUSB_CFG_24, + XUSB_CFG_16, +}; + +static const struct tegra_xusb_context_soc tegra124_xusb_context = { + .ipfs = { + .num_offsets = ARRAY_SIZE(tegra124_xusb_context_ipfs), + .offsets = tegra124_xusb_context_ipfs, + }, + .fpci = { + .num_offsets = ARRAY_SIZE(tegra124_xusb_context_fpci), + .offsets = tegra124_xusb_context_fpci, + }, +}; + static const struct tegra_xusb_soc tegra124_soc = { .firmware = "nvidia/tegra124/xusb.bin", .supply_names = tegra124_supply_names, .num_supplies = ARRAY_SIZE(tegra124_supply_names), .phy_types = tegra124_phy_types, .num_types = ARRAY_SIZE(tegra124_phy_types), + .context = &tegra124_xusb_context, .ports = { .usb2 = { .offset = 4, .count = 4, }, .hsic = { .offset = 6, .count = 2, }, @@ -1365,6 +1694,12 @@ static const struct tegra_xusb_soc tegra124_soc = { }, .scale_ss_clock = true, .has_ipfs = true, + .mbox = { + .cmd = 0xe4, + .data_in = 0xe8, + .data_out = 0xec, + .owner = 0xf0, + }, }; MODULE_FIRMWARE("nvidia/tegra124/xusb.bin"); @@ -1390,6 +1725,7 @@ static const struct tegra_xusb_soc tegra210_soc = { .num_supplies = ARRAY_SIZE(tegra210_supply_names), .phy_types = tegra210_phy_types, .num_types = ARRAY_SIZE(tegra210_phy_types), + .context = &tegra124_xusb_context, .ports = { .usb2 = { .offset = 4, .count = 4, }, .hsic = { .offset = 8, .count = 1, }, @@ -1397,11 +1733,18 @@ static const struct tegra_xusb_soc tegra210_soc = { }, .scale_ss_clock = false, .has_ipfs = true, + .mbox = { + .cmd = 0xe4, + .data_in = 0xe8, + .data_out = 0xec, + .owner = 0xf0, + }, }; MODULE_FIRMWARE("nvidia/tegra210/xusb.bin"); static const char * const tegra186_supply_names[] = { }; +MODULE_FIRMWARE("nvidia/tegra186/xusb.bin"); static const struct tegra_xusb_phy_type tegra186_phy_types[] = { { .name = "usb3", .num = 3, }, @@ -1409,12 +1752,20 @@ static const struct tegra_xusb_phy_type tegra186_phy_types[] = { { .name = "hsic", .num = 1, }, }; +static const struct tegra_xusb_context_soc tegra186_xusb_context = { + .fpci = { + .num_offsets = ARRAY_SIZE(tegra124_xusb_context_fpci), + .offsets = tegra124_xusb_context_fpci, + }, +}; + static const struct tegra_xusb_soc tegra186_soc = { .firmware = "nvidia/tegra186/xusb.bin", .supply_names = tegra186_supply_names, .num_supplies = ARRAY_SIZE(tegra186_supply_names), .phy_types = tegra186_phy_types, .num_types = ARRAY_SIZE(tegra186_phy_types), + .context = &tegra186_xusb_context, .ports = { .usb3 = { .offset = 0, .count = 3, }, .usb2 = { .offset = 3, .count = 3, }, @@ -1422,12 +1773,49 @@ static const struct tegra_xusb_soc tegra186_soc = { }, .scale_ss_clock = false, .has_ipfs = false, + .mbox = { + .cmd = 0xe4, + .data_in = 0xe8, + .data_out = 0xec, + .owner = 0xf0, + }, +}; + +static const char * const tegra194_supply_names[] = { +}; + +static const struct tegra_xusb_phy_type tegra194_phy_types[] = { + { .name = "usb3", .num = 4, }, + { .name = "usb2", .num = 4, }, +}; + +static const struct tegra_xusb_soc tegra194_soc = { + .firmware = "nvidia/tegra194/xusb.bin", + .supply_names = tegra194_supply_names, + .num_supplies = ARRAY_SIZE(tegra194_supply_names), + .phy_types = tegra194_phy_types, + .num_types = ARRAY_SIZE(tegra194_phy_types), + .context = &tegra186_xusb_context, + .ports = { + .usb3 = { .offset = 0, .count = 4, }, + .usb2 = { .offset = 4, .count = 4, }, + }, + .scale_ss_clock = false, + .has_ipfs = false, + .mbox = { + .cmd = 0x68, + .data_in = 0x6c, + .data_out = 0x70, + .owner = 0x74, + }, }; +MODULE_FIRMWARE("nvidia/tegra194/xusb.bin"); static const struct of_device_id tegra_xusb_of_match[] = { { .compatible = "nvidia,tegra124-xusb", .data = &tegra124_soc }, { .compatible = "nvidia,tegra210-xusb", .data = &tegra210_soc }, { .compatible = "nvidia,tegra186-xusb", .data = &tegra186_soc }, + { .compatible = "nvidia,tegra194-xusb", .data = &tegra194_soc }, { }, }; MODULE_DEVICE_TABLE(of, tegra_xusb_of_match); diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h index 052a269d86f2..56eb867803a6 100644 --- a/drivers/usb/host/xhci-trace.h +++ b/drivers/usb/host/xhci-trace.h @@ -560,6 +560,32 @@ DEFINE_EVENT(xhci_log_portsc, xhci_hub_status_data, TP_ARGS(portnum, portsc) ); +DECLARE_EVENT_CLASS(xhci_log_doorbell, + TP_PROTO(u32 slot, u32 doorbell), + TP_ARGS(slot, doorbell), + TP_STRUCT__entry( + __field(u32, slot) + __field(u32, doorbell) + ), + TP_fast_assign( + __entry->slot = slot; + __entry->doorbell = doorbell; + ), + TP_printk("Ring doorbell for %s", + xhci_decode_doorbell(__entry->slot, __entry->doorbell) + ) +); + +DEFINE_EVENT(xhci_log_doorbell, xhci_ring_ep_doorbell, + TP_PROTO(u32 slot, u32 doorbell), + TP_ARGS(slot, doorbell) +); + +DEFINE_EVENT(xhci_log_doorbell, xhci_ring_host_doorbell, + TP_PROTO(u32 slot, u32 doorbell), + TP_ARGS(slot, doorbell) +); + DECLARE_EVENT_CLASS(xhci_dbc_log_request, TP_PROTO(struct dbc_request *req), TP_ARGS(req), diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 03d1e552769b..dbac0fa9748d 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -770,7 +770,7 @@ static void xhci_stop(struct usb_hcd *hcd) * * This will only ever be called with the main usb_hcd (the USB3 roothub). */ -static void xhci_shutdown(struct usb_hcd *hcd) +void xhci_shutdown(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); @@ -789,11 +789,8 @@ static void xhci_shutdown(struct usb_hcd *hcd) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_shutdown completed - status = %x", readl(&xhci->op_regs->status)); - - /* Yet another workaround for spurious wakeups at shutdown with HSW */ - if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) - pci_set_power_state(to_pci_dev(hcd->self.sysdev), PCI_D3hot); } +EXPORT_SYMBOL_GPL(xhci_shutdown); #ifdef CONFIG_PM static void xhci_save_registers(struct xhci_hcd *xhci) @@ -973,7 +970,7 @@ static bool xhci_pending_portevent(struct xhci_hcd *xhci) int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) { int rc = 0; - unsigned int delay = XHCI_MAX_HALT_USEC; + unsigned int delay = XHCI_MAX_HALT_USEC * 2; struct usb_hcd *hcd = xhci_to_hcd(xhci); u32 command; u32 res; @@ -1032,7 +1029,7 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) writel(command, &xhci->op_regs->command); xhci->broken_suspend = 0; if (xhci_handshake(&xhci->op_regs->status, - STS_SAVE, 0, 10 * 1000)) { + STS_SAVE, 0, 20 * 1000)) { /* * AMD SNPS xHC 3.0 occasionally does not clear the * SSS bit of USBSTS and when driver tries to poll @@ -1108,6 +1105,18 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) hibernated = true; if (!hibernated) { + /* + * Some controllers might lose power during suspend, so wait + * for controller not ready bit to clear, just as in xHC init. + */ + retval = xhci_handshake(&xhci->op_regs->status, + STS_CNR, 0, 10 * 1000 * 1000); + if (retval) { + xhci_warn(xhci, "Controller not ready at resume %d\n", + retval); + spin_unlock_irq(&xhci->lock); + return retval; + } /* step 1: restore register */ xhci_restore_registers(xhci); /* step 2: initialize command ring buffer */ @@ -3059,6 +3068,48 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, unsigned int ep_index, } } +static void xhci_endpoint_disable(struct usb_hcd *hcd, + struct usb_host_endpoint *host_ep) +{ + struct xhci_hcd *xhci; + struct xhci_virt_device *vdev; + struct xhci_virt_ep *ep; + struct usb_device *udev; + unsigned long flags; + unsigned int ep_index; + + xhci = hcd_to_xhci(hcd); +rescan: + spin_lock_irqsave(&xhci->lock, flags); + + udev = (struct usb_device *)host_ep->hcpriv; + if (!udev || !udev->slot_id) + goto done; + + vdev = xhci->devs[udev->slot_id]; + if (!vdev) + goto done; + + ep_index = xhci_get_endpoint_index(&host_ep->desc); + ep = &vdev->eps[ep_index]; + if (!ep) + goto done; + + /* wait for hub_tt_work to finish clearing hub TT */ + if (ep->ep_state & EP_CLEARING_TT) { + spin_unlock_irqrestore(&xhci->lock, flags); + schedule_timeout_uninterruptible(1); + goto rescan; + } + + if (ep->ep_state) + xhci_dbg(xhci, "endpoint disable with ep_state 0x%x\n", + ep->ep_state); +done: + host_ep->hcpriv = NULL; + spin_unlock_irqrestore(&xhci->lock, flags); +} + /* * Called after usb core issues a clear halt control message. * The host side of the halt should already be cleared by a reset endpoint @@ -3083,6 +3134,7 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd, unsigned int ep_index; unsigned long flags; u32 ep_flag; + int err; xhci = hcd_to_xhci(hcd); if (!host_ep->hcpriv) @@ -3142,7 +3194,17 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd, xhci_free_command(xhci, cfg_cmd); goto cleanup; } - xhci_queue_stop_endpoint(xhci, stop_cmd, udev->slot_id, ep_index, 0); + + err = xhci_queue_stop_endpoint(xhci, stop_cmd, udev->slot_id, + ep_index, 0); + if (err < 0) { + spin_unlock_irqrestore(&xhci->lock, flags); + xhci_free_command(xhci, cfg_cmd); + xhci_dbg(xhci, "%s: Failed to queue stop ep command, %d ", + __func__, err); + goto cleanup; + } + xhci_ring_cmd_db(xhci); spin_unlock_irqrestore(&xhci->lock, flags); @@ -3156,8 +3218,16 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd, ctrl_ctx, ep_flag, ep_flag); xhci_endpoint_copy(xhci, cfg_cmd->in_ctx, vdev->out_ctx, ep_index); - xhci_queue_configure_endpoint(xhci, cfg_cmd, cfg_cmd->in_ctx->dma, + err = xhci_queue_configure_endpoint(xhci, cfg_cmd, cfg_cmd->in_ctx->dma, udev->slot_id, false); + if (err < 0) { + spin_unlock_irqrestore(&xhci->lock, flags); + xhci_free_command(xhci, cfg_cmd); + xhci_dbg(xhci, "%s: Failed to queue config ep command, %d ", + __func__, err); + goto cleanup; + } + xhci_ring_cmd_db(xhci); spin_unlock_irqrestore(&xhci->lock, flags); @@ -3814,7 +3884,6 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) virt_dev->eps[i].ep_state &= ~EP_STOP_CMD_PENDING; del_timer_sync(&virt_dev->eps[i].stop_cmd_timer); } - xhci_debugfs_remove_slot(xhci, udev->slot_id); virt_dev->udev = NULL; ret = xhci_disable_slot(xhci, udev->slot_id); if (ret) @@ -3832,6 +3901,8 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) if (!command) return -ENOMEM; + xhci_debugfs_remove_slot(xhci, slot_id); + spin_lock_irqsave(&xhci->lock, flags); /* Don't disable the slot if the host controller is dead. */ state = readl(&xhci->op_regs->status); @@ -4673,12 +4744,12 @@ static int xhci_update_timeout_for_endpoint(struct xhci_hcd *xhci, alt_timeout = xhci_call_host_update_timeout_for_endpoint(xhci, udev, desc, state, timeout); - /* If we found we can't enable hub-initiated LPM, or + /* If we found we can't enable hub-initiated LPM, and * the U1 or U2 exit latency was too high to allow - * device-initiated LPM as well, just stop searching. + * device-initiated LPM as well, then we will disable LPM + * for this device, so stop searching any further. */ - if (alt_timeout == USB3_LPM_DISABLED || - alt_timeout == USB3_LPM_DEVICE_INITIATED) { + if (alt_timeout == USB3_LPM_DISABLED) { *timeout = alt_timeout; return -E2BIG; } @@ -4789,10 +4860,12 @@ static u16 xhci_calculate_lpm_timeout(struct usb_hcd *hcd, if (intf->dev.driver) { driver = to_usb_driver(intf->dev.driver); if (driver && driver->disable_hub_initiated_lpm) { - dev_dbg(&udev->dev, "Hub-initiated %s disabled " - "at request of driver %s\n", - state_name, driver->name); - return xhci_get_timeout_no_hub_lpm(udev, state); + dev_dbg(&udev->dev, "Hub-initiated %s disabled at request of driver %s\n", + state_name, driver->name); + timeout = xhci_get_timeout_no_hub_lpm(udev, + state); + if (timeout == USB3_LPM_DISABLED) + return timeout; } } @@ -5076,11 +5149,18 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) hcd->has_tt = 1; } else { /* - * Some 3.1 hosts return sbrn 0x30, use xhci supported protocol - * minor revision instead of sbrn. Minor revision is a two digit - * BCD containing minor and sub-minor numbers, only show minor. + * Early xHCI 1.1 spec did not mention USB 3.1 capable hosts + * should return 0x31 for sbrn, or that the minor revision + * is a two digit BCD containig minor and sub-minor numbers. + * This was later clarified in xHCI 1.2. + * + * Some USB 3.1 capable hosts therefore have sbrn 0x30, and + * minor revision set to 0x1 instead of 0x10. */ - minor_rev = xhci->usb3_rhub.min_rev / 0x10; + if (xhci->usb3_rhub.min_rev == 0x1) + minor_rev = 1; + else + minor_rev = xhci->usb3_rhub.min_rev / 0x10; switch (minor_rev) { case 2: @@ -5198,11 +5278,12 @@ static void xhci_clear_tt_buffer_complete(struct usb_hcd *hcd, unsigned long flags; xhci = hcd_to_xhci(hcd); + + spin_lock_irqsave(&xhci->lock, flags); udev = (struct usb_device *)ep->hcpriv; slot_id = udev->slot_id; ep_index = xhci_get_endpoint_index(&ep->desc); - spin_lock_irqsave(&xhci->lock, flags); xhci->devs[slot_id]->eps[ep_index].ep_state &= ~EP_CLEARING_TT; xhci_ring_doorbell_for_active_rings(xhci, slot_id, ep_index); spin_unlock_irqrestore(&xhci->lock, flags); @@ -5217,7 +5298,8 @@ static const struct hc_driver xhci_hc_driver = { * generic hardware linkage */ .irq = xhci_irq, - .flags = HCD_MEMORY | HCD_USB3 | HCD_SHARED, + .flags = HCD_MEMORY | HCD_DMA | HCD_USB3 | HCD_SHARED | + HCD_BH, /* * basic lifecycle operations @@ -5239,6 +5321,7 @@ static const struct hc_driver xhci_hc_driver = { .free_streams = xhci_free_streams, .add_endpoint = xhci_add_endpoint, .drop_endpoint = xhci_drop_endpoint, + .endpoint_disable = xhci_endpoint_disable, .endpoint_reset = xhci_endpoint_reset, .check_bandwidth = xhci_check_bandwidth, .reset_bandwidth = xhci_reset_bandwidth, diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index f5c41448d067..13d8838cd552 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -2050,6 +2050,7 @@ int xhci_start(struct xhci_hcd *xhci); int xhci_reset(struct xhci_hcd *xhci); int xhci_run(struct usb_hcd *hcd); int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks); +void xhci_shutdown(struct usb_hcd *hcd); void xhci_init_driver(struct hc_driver *drv, const struct xhci_driver_overrides *over); int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id); @@ -2337,12 +2338,13 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, break; case TRB_RESET_EP: sprintf(str, - "%s: ctx %08x%08x slot %d ep %d flags %c", + "%s: ctx %08x%08x slot %d ep %d flags %c:%c", xhci_trb_type_string(type), field1, field0, TRB_TO_SLOT_ID(field3), /* Macro decrements 1, maybe it shouldn't?!? */ TRB_TO_EP_INDEX(field3) + 1, + field3 & TRB_TSP ? 'T' : 't', field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_STOP_RING: @@ -2579,6 +2581,35 @@ static inline const char *xhci_decode_portsc(u32 portsc) return str; } +static inline const char *xhci_decode_doorbell(u32 slot, u32 doorbell) +{ + static char str[256]; + u8 ep; + u16 stream; + int ret; + + ep = (doorbell & 0xff); + stream = doorbell >> 16; + + if (slot == 0) { + sprintf(str, "Command Ring %d", doorbell); + return str; + } + ret = sprintf(str, "Slot %d ", slot); + if (ep > 0 && ep < 32) + ret = sprintf(str + ret, "ep%d%s", + ep / 2, + ep % 2 ? "in" : "out"); + else if (ep == 0 || ep < 248) + ret = sprintf(str + ret, "Reserved %d", ep); + else + ret = sprintf(str + ret, "Vendor Defined %d", ep); + if (stream) + ret = sprintf(str + ret, " Stream %d", stream); + + return str; +} + static inline const char *xhci_ep_state_string(u8 state) { switch (state) { |
