diff options
Diffstat (limited to 'drivers/usb/host')
34 files changed, 1669 insertions, 322 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 2d926cec072..bf2e7d23453 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -93,12 +93,14 @@ config USB_EHCI_TT_NEWSCHED config USB_EHCI_BIG_ENDIAN_MMIO bool - depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || ARCH_IXP4XX || XPS_USB_HCD_XILINX) + depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || ARCH_IXP4XX || \ + XPS_USB_HCD_XILINX || PPC_MPC512x) default y config USB_EHCI_BIG_ENDIAN_DESC bool - depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX || XPS_USB_HCD_XILINX) + depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX || XPS_USB_HCD_XILINX || \ + PPC_MPC512x) default y config XPS_USB_HCD_XILINX @@ -112,10 +114,14 @@ config XPS_USB_HCD_XILINX support both high speed and full speed devices, or high speed devices only. +config USB_FSL_MPH_DR_OF + tristate + config USB_EHCI_FSL bool "Support for Freescale on-chip EHCI USB controller" depends on USB_EHCI_HCD && FSL_SOC select USB_EHCI_ROOT_HUB_TT + select USB_FSL_MPH_DR_OF ---help--- Variation of ARC USB block used in some Freescale chips. diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index b6315aa47f7..91c5a1bd102 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -2,17 +2,17 @@ # Makefile for USB Host Controller Drivers # -ifeq ($(CONFIG_USB_DEBUG),y) - EXTRA_CFLAGS += -DDEBUG -endif - -isp1760-objs := isp1760-hcd.o isp1760-if.o -fhci-objs := fhci-hcd.o fhci-hub.o fhci-q.o fhci-mem.o \ - fhci-tds.o fhci-sched.o -ifeq ($(CONFIG_FHCI_DEBUG),y) -fhci-objs += fhci-dbg.o -endif -xhci-hcd-objs := xhci.o xhci-mem.o xhci-pci.o xhci-ring.o xhci-hub.o xhci-dbg.o +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG + +isp1760-y := isp1760-hcd.o isp1760-if.o + +fhci-y := fhci-hcd.o fhci-hub.o fhci-q.o +fhci-y += fhci-mem.o fhci-tds.o fhci-sched.o + +fhci-$(CONFIG_FHCI_DEBUG) += fhci-dbg.o + +xhci-hcd-y := xhci.o xhci-mem.o xhci-pci.o +xhci-hcd-y += xhci-ring.o xhci-hub.o xhci-dbg.o obj-$(CONFIG_USB_WHCI_HCD) += whci/ @@ -33,4 +33,4 @@ obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o obj-$(CONFIG_USB_ISP1760_HCD) += isp1760.o obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o - +obj-$(CONFIG_USB_FSL_MPH_DR_OF) += fsl-mph-dr-of.o diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 76b7fd2d838..86afdc73322 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -369,18 +369,21 @@ static const struct file_operations debug_async_fops = { .open = debug_async_open, .read = debug_output, .release = debug_close, + .llseek = default_llseek, }; static const struct file_operations debug_periodic_fops = { .owner = THIS_MODULE, .open = debug_periodic_open, .read = debug_output, .release = debug_close, + .llseek = default_llseek, }; static const struct file_operations debug_registers_fops = { .owner = THIS_MODULE, .open = debug_registers_open, .read = debug_output, .release = debug_close, + .llseek = default_llseek, }; static const struct file_operations debug_lpm_fops = { .owner = THIS_MODULE, @@ -388,6 +391,7 @@ static const struct file_operations debug_lpm_fops = { .read = debug_lpm_read, .write = debug_lpm_write, .release = debug_lpm_close, + .llseek = noop_llseek, }; static struct dentry *ehci_debug_root; diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index a416421abfa..86e42892016 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -116,13 +116,33 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, goto err3; } - /* Enable USB controller */ - temp = in_be32(hcd->regs + 0x500); - out_be32(hcd->regs + 0x500, temp | 0x4); + pdata->regs = hcd->regs; - /* Set to Host mode */ - temp = in_le32(hcd->regs + 0x1a8); - out_le32(hcd->regs + 0x1a8, temp | 0x3); + /* + * do platform specific init: check the clock, grab/config pins, etc. + */ + if (pdata->init && pdata->init(pdev)) { + retval = -ENODEV; + goto err3; + } + + /* + * Check if it is MPC5121 SoC, otherwise set pdata->have_sysif_regs + * flag for 83xx or 8536 system interface registers. + */ + if (pdata->big_endian_mmio) + temp = in_be32(hcd->regs + FSL_SOC_USB_ID); + else + temp = in_le32(hcd->regs + FSL_SOC_USB_ID); + + if ((temp & ID_MSK) != (~((temp & NID_MSK) >> 8) & ID_MSK)) + pdata->have_sysif_regs = 1; + + /* Enable USB controller, 83xx or 8536 */ + if (pdata->have_sysif_regs) + setbits32(hcd->regs + FSL_SOC_USB_CTRL, 0x4); + + /* Don't need to set host mode here. It will be done by tdi_reset() */ retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (retval != 0) @@ -137,6 +157,8 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, usb_put_hcd(hcd); err1: dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval); + if (pdata->exit) + pdata->exit(pdev); return retval; } @@ -154,17 +176,30 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, static void usb_hcd_fsl_remove(struct usb_hcd *hcd, struct platform_device *pdev) { + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + usb_remove_hcd(hcd); + + /* + * do platform specific un-initialization: + * release iomux pins, disable clock, etc. + */ + if (pdata->exit) + pdata->exit(pdev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); } -static void mpc83xx_setup_phy(struct ehci_hcd *ehci, - enum fsl_usb2_phy_modes phy_mode, - unsigned int port_offset) +static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, + enum fsl_usb2_phy_modes phy_mode, + unsigned int port_offset) { - u32 portsc = 0; + u32 portsc; + + portsc = ehci_readl(ehci, &ehci->regs->port_status[port_offset]); + portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW); + switch (phy_mode) { case FSL_USB2_PHY_ULPI: portsc |= PORT_PTS_ULPI; @@ -184,20 +219,21 @@ static void mpc83xx_setup_phy(struct ehci_hcd *ehci, ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]); } -static void mpc83xx_usb_setup(struct usb_hcd *hcd) +static void ehci_fsl_usb_setup(struct ehci_hcd *ehci) { - struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct usb_hcd *hcd = ehci_to_hcd(ehci); struct fsl_usb2_platform_data *pdata; void __iomem *non_ehci = hcd->regs; u32 temp; - pdata = - (struct fsl_usb2_platform_data *)hcd->self.controller-> - platform_data; + pdata = hcd->self.controller->platform_data; + /* Enable PHY interface in the control reg. */ - temp = in_be32(non_ehci + FSL_SOC_USB_CTRL); - out_be32(non_ehci + FSL_SOC_USB_CTRL, temp | 0x00000004); - out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0000001b); + if (pdata->have_sysif_regs) { + temp = in_be32(non_ehci + FSL_SOC_USB_CTRL); + out_be32(non_ehci + FSL_SOC_USB_CTRL, temp | 0x00000004); + out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0000001b); + } #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) /* @@ -214,7 +250,7 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) if ((pdata->operating_mode == FSL_USB2_DR_HOST) || (pdata->operating_mode == FSL_USB2_DR_OTG)) - mpc83xx_setup_phy(ehci, pdata->phy_mode, 0); + ehci_fsl_setup_phy(ehci, pdata->phy_mode, 0); if (pdata->operating_mode == FSL_USB2_MPH_HOST) { unsigned int chip, rev, svr; @@ -228,27 +264,27 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) ehci->has_fsl_port_bug = 1; if (pdata->port_enables & FSL_USB2_PORT0_ENABLED) - mpc83xx_setup_phy(ehci, pdata->phy_mode, 0); + ehci_fsl_setup_phy(ehci, pdata->phy_mode, 0); if (pdata->port_enables & FSL_USB2_PORT1_ENABLED) - mpc83xx_setup_phy(ehci, pdata->phy_mode, 1); + ehci_fsl_setup_phy(ehci, pdata->phy_mode, 1); } - /* put controller in host mode. */ - ehci_writel(ehci, 0x00000003, non_ehci + FSL_SOC_USB_USBMODE); + if (pdata->have_sysif_regs) { #ifdef CONFIG_PPC_85xx - out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x00000008); - out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000080); + out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x00000008); + out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000080); #else - out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x0000000c); - out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000040); + out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x0000000c); + out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000040); #endif - out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); + out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); + } } /* called after powerup, by probe or system-pm "wakeup" */ static int ehci_fsl_reinit(struct ehci_hcd *ehci) { - mpc83xx_usb_setup(ehci_to_hcd(ehci)); + ehci_fsl_usb_setup(ehci); ehci_port_power(ehci, 0); return 0; @@ -259,6 +295,11 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); int retval; + struct fsl_usb2_platform_data *pdata; + + pdata = hcd->self.controller->platform_data; + ehci->big_endian_desc = pdata->big_endian_desc; + ehci->big_endian_mmio = pdata->big_endian_mmio; /* EHCI registers start at offset 0x100 */ ehci->caps = hcd->regs + 0x100; @@ -270,6 +311,8 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) /* cache this readonly data; minimize chip reads */ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + hcd->has_tt = 1; + retval = ehci_halt(ehci); if (retval) return retval; @@ -279,8 +322,6 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) if (retval) return retval; - hcd->has_tt = 1; - ehci->sbrn = 0x20; ehci_reset(ehci); @@ -372,7 +413,7 @@ static const struct hc_driver ehci_fsl_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2, + .flags = HCD_USB2 | HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h index b5e59db5334..2c835379522 100644 --- a/drivers/usb/host/ehci-fsl.h +++ b/drivers/usb/host/ehci-fsl.h @@ -1,4 +1,4 @@ -/* Copyright (c) 2005 freescale semiconductor +/* Copyright (C) 2005-2010 Freescale Semiconductor, Inc. * Copyright (c) 2005 MontaVista Software * * This program is free software; you can redistribute it and/or modify it @@ -19,6 +19,9 @@ #define _EHCI_FSL_H /* offsets for the non-ehci registers in the FSL SOC USB controller */ +#define FSL_SOC_USB_ID 0x0 +#define ID_MSK 0x3f +#define NID_MSK 0x3f00 #define FSL_SOC_USB_ULPIVP 0x170 #define FSL_SOC_USB_PORTSC1 0x184 #define PORT_PTS_MSK (3<<30) @@ -27,7 +30,14 @@ #define PORT_PTS_SERIAL (3<<30) #define PORT_PTS_PTW (1<<28) #define FSL_SOC_USB_PORTSC2 0x188 -#define FSL_SOC_USB_USBMODE 0x1a8 + +#define FSL_SOC_USB_USBGENCTRL 0x200 +#define USBGENCTRL_PPP (1 << 3) +#define USBGENCTRL_PFP (1 << 2) +#define FSL_SOC_USB_ISIPHYCTRL 0x204 +#define ISIPHYCTRL_PXE (1) +#define ISIPHYCTRL_PHYE (1 << 4) + #define FSL_SOC_USB_SNOOP1 0x400 /* NOTE: big-endian */ #define FSL_SOC_USB_SNOOP2 0x404 /* NOTE: big-endian */ #define FSL_SOC_USB_AGECNTTHRSH 0x408 /* NOTE: big-endian */ diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 34a928d3b7d..2adae8e39bb 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -194,6 +194,17 @@ static int handshake (struct ehci_hcd *ehci, void __iomem *ptr, return -ETIMEDOUT; } +/* check TDI/ARC silicon is in host mode */ +static int tdi_in_host_mode (struct ehci_hcd *ehci) +{ + u32 __iomem *reg_ptr; + u32 tmp; + + reg_ptr = (u32 __iomem *)(((u8 __iomem *)ehci->regs) + USBMODE); + tmp = ehci_readl(ehci, reg_ptr); + return (tmp & 3) == USBMODE_CM_HC; +} + /* force HC to halt state from unknown (EHCI spec section 2.3) */ static int ehci_halt (struct ehci_hcd *ehci) { @@ -202,6 +213,10 @@ static int ehci_halt (struct ehci_hcd *ehci) /* disable any irqs left enabled by previous code */ ehci_writel(ehci, 0, &ehci->regs->intr_enable); + if (ehci_is_TDI(ehci) && tdi_in_host_mode(ehci) == 0) { + return 0; + } + if ((temp & STS_HALT) != 0) return 0; @@ -1080,7 +1095,6 @@ nogood: ep->hcpriv = NULL; done: spin_unlock_irqrestore (&ehci->lock, flags); - return; } static void diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index 1f3f01eacaf..d36e4e75e08 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c @@ -40,7 +40,7 @@ static inline void ehci_qtd_init(struct ehci_hcd *ehci, struct ehci_qtd *qtd, { memset (qtd, 0, sizeof *qtd); qtd->qtd_dma = dma; - qtd->hw_token = cpu_to_le32 (QTD_STS_HALT); + qtd->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT); qtd->hw_next = EHCI_LIST_END(ehci); qtd->hw_alt_next = EHCI_LIST_END(ehci); INIT_LIST_HEAD (&qtd->qtd_list); diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index a8ad8ac120a..ac9c4d7c44a 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -26,9 +26,6 @@ #include <mach/mxc_ehci.h> #define ULPI_VIEWPORT_OFFSET 0x170 -#define PORTSC_OFFSET 0x184 -#define USBMODE_OFFSET 0x1a8 -#define USBMODE_CM_HOST 3 struct ehci_mxc_priv { struct clk *usbclk, *ahbclk; @@ -51,6 +48,8 @@ static int ehci_mxc_setup(struct usb_hcd *hcd) /* cache this readonly data; minimize chip reads */ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + hcd->has_tt = 1; + retval = ehci_halt(ehci); if (retval) return retval; @@ -60,8 +59,6 @@ static int ehci_mxc_setup(struct usb_hcd *hcd) if (retval) return retval; - hcd->has_tt = 1; - ehci->sbrn = 0x20; ehci_reset(ehci); @@ -191,12 +188,8 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev) clk_enable(priv->ahbclk); } - /* set USBMODE to host mode */ - temp = readl(hcd->regs + USBMODE_OFFSET); - writel(temp | USBMODE_CM_HOST, hcd->regs + USBMODE_OFFSET); - /* set up the PORTSCx register */ - writel(pdata->portsc, hcd->regs + PORTSC_OFFSET); + ehci_writel(ehci, pdata->portsc, &ehci->regs->port_status[0]); mdelay(10); /* setup specific usb hw */ diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c new file mode 100644 index 00000000000..574b99ea070 --- /dev/null +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -0,0 +1,308 @@ +/* + * Setup platform devices needed by the Freescale multi-port host + * and/or dual-role USB controller modules based on the description + * in flat device tree. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/fsl_devices.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of_platform.h> +#include <linux/clk.h> + +struct fsl_usb2_dev_data { + char *dr_mode; /* controller mode */ + char *drivers[3]; /* drivers to instantiate for this mode */ + enum fsl_usb2_operating_modes op_mode; /* operating mode */ +}; + +struct fsl_usb2_dev_data dr_mode_data[] __devinitdata = { + { + .dr_mode = "host", + .drivers = { "fsl-ehci", NULL, NULL, }, + .op_mode = FSL_USB2_DR_HOST, + }, + { + .dr_mode = "otg", + .drivers = { "fsl-usb2-otg", "fsl-ehci", "fsl-usb2-udc", }, + .op_mode = FSL_USB2_DR_OTG, + }, + { + .dr_mode = "peripheral", + .drivers = { "fsl-usb2-udc", NULL, NULL, }, + .op_mode = FSL_USB2_DR_DEVICE, + }, +}; + +struct fsl_usb2_dev_data * __devinit get_dr_mode_data(struct device_node *np) +{ + const unsigned char *prop; + int i; + + prop = of_get_property(np, "dr_mode", NULL); + if (prop) { + for (i = 0; i < ARRAY_SIZE(dr_mode_data); i++) { + if (!strcmp(prop, dr_mode_data[i].dr_mode)) + return &dr_mode_data[i]; + } + } + pr_warn("%s: Invalid 'dr_mode' property, fallback to host mode\n", + np->full_name); + return &dr_mode_data[0]; /* mode not specified, use host */ +} + +static enum fsl_usb2_phy_modes __devinit determine_usb_phy(const char *phy_type) +{ + if (!phy_type) + return FSL_USB2_PHY_NONE; + if (!strcasecmp(phy_type, "ulpi")) + return FSL_USB2_PHY_ULPI; + if (!strcasecmp(phy_type, "utmi")) + return FSL_USB2_PHY_UTMI; + if (!strcasecmp(phy_type, "utmi_wide")) + return FSL_USB2_PHY_UTMI_WIDE; + if (!strcasecmp(phy_type, "serial")) + return FSL_USB2_PHY_SERIAL; + + return FSL_USB2_PHY_NONE; +} + +struct platform_device * __devinit fsl_usb2_device_register( + struct platform_device *ofdev, + struct fsl_usb2_platform_data *pdata, + const char *name, int id) +{ + struct platform_device *pdev; + const struct resource *res = ofdev->resource; + unsigned int num = ofdev->num_resources; + int retval; + + pdev = platform_device_alloc(name, id); + if (!pdev) { + retval = -ENOMEM; + goto error; + } + + pdev->dev.parent = &ofdev->dev; + + pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask; + pdev->dev.dma_mask = &pdev->archdata.dma_mask; + *pdev->dev.dma_mask = *ofdev->dev.dma_mask; + + retval = platform_device_add_data(pdev, pdata, sizeof(*pdata)); + if (retval) + goto error; + + if (num) { + retval = platform_device_add_resources(pdev, res, num); + if (retval) + goto error; + } + + retval = platform_device_add(pdev); + if (retval) + goto error; + + return pdev; + +error: + platform_device_put(pdev); + return ERR_PTR(retval); +} + +static const struct of_device_id fsl_usb2_mph_dr_of_match[]; + +static int __devinit fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev) +{ + struct device_node *np = ofdev->dev.of_node; + struct platform_device *usb_dev; + struct fsl_usb2_platform_data data, *pdata; + struct fsl_usb2_dev_data *dev_data; + const struct of_device_id *match; + const unsigned char *prop; + static unsigned int idx; + int i; + + if (!of_device_is_available(np)) + return -ENODEV; + + match = of_match_device(fsl_usb2_mph_dr_of_match, &ofdev->dev); + if (!match) + return -ENODEV; + + pdata = &data; + if (match->data) + memcpy(pdata, match->data, sizeof(data)); + else + memset(pdata, 0, sizeof(data)); + + dev_data = get_dr_mode_data(np); + + if (of_device_is_compatible(np, "fsl-usb2-mph")) { + if (of_get_property(np, "port0", NULL)) + pdata->port_enables |= FSL_USB2_PORT0_ENABLED; + + if (of_get_property(np, "port1", NULL)) + pdata->port_enables |= FSL_USB2_PORT1_ENABLED; + + pdata->operating_mode = FSL_USB2_MPH_HOST; + } else { + if (of_get_property(np, "fsl,invert-drvvbus", NULL)) + pdata->invert_drvvbus = 1; + + if (of_get_property(np, "fsl,invert-pwr-fault", NULL)) + pdata->invert_pwr_fault = 1; + + /* setup mode selected in the device tree */ + pdata->operating_mode = dev_data->op_mode; + } + + prop = of_get_property(np, "phy_type", NULL); + pdata->phy_mode = determine_usb_phy(prop); + + for (i = 0; i < ARRAY_SIZE(dev_data->drivers); i++) { + if (!dev_data->drivers[i]) + continue; + usb_dev = fsl_usb2_device_register(ofdev, pdata, + dev_data->drivers[i], idx); + if (IS_ERR(usb_dev)) { + dev_err(&ofdev->dev, "Can't register usb device\n"); + return PTR_ERR(usb_dev); + } + } + idx++; + return 0; +} + +static int __devexit __unregister_subdev(struct device *dev, void *d) +{ + platform_device_unregister(to_platform_device(dev)); + return 0; +} + +static int __devexit fsl_usb2_mph_dr_of_remove(struct platform_device *ofdev) +{ + device_for_each_child(&ofdev->dev, NULL, __unregister_subdev); + return 0; +} + +#ifdef CONFIG_PPC_MPC512x + +#define USBGENCTRL 0x200 /* NOTE: big endian */ +#define GC_WU_INT_CLR (1 << 5) /* Wakeup int clear */ +#define GC_ULPI_SEL (1 << 4) /* ULPI i/f select (usb0 only)*/ +#define GC_PPP (1 << 3) /* Inv. Port Power Polarity */ +#define GC_PFP (1 << 2) /* Inv. Power Fault Polarity */ +#define GC_WU_ULPI_EN (1 << 1) /* Wakeup on ULPI event */ +#define GC_WU_IE (1 << 1) /* Wakeup interrupt enable */ + +#define ISIPHYCTRL 0x204 /* NOTE: big endian */ +#define PHYCTRL_PHYE (1 << 4) /* On-chip UTMI PHY enable */ +#define PHYCTRL_BSENH (1 << 3) /* Bit Stuff Enable High */ +#define PHYCTRL_BSEN (1 << 2) /* Bit Stuff Enable */ +#define PHYCTRL_LSFE (1 << 1) /* Line State Filter Enable */ +#define PHYCTRL_PXE (1 << 0) /* PHY oscillator enable */ + +int fsl_usb2_mpc5121_init(struct platform_device *pdev) +{ + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + struct clk *clk; + char clk_name[10]; + int base, clk_num; + + base = pdev->resource->start & 0xf000; + if (base == 0x3000) + clk_num = 1; + else if (base == 0x4000) + clk_num = 2; + else + return -ENODEV; + + snprintf(clk_name, sizeof(clk_name), "usb%d_clk", clk_num); + clk = clk_get(&pdev->dev, clk_name); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "failed to get clk\n"); + return PTR_ERR(clk); + } + + clk_enable(clk); + pdata->clk = clk; + + if (pdata->phy_mode == FSL_USB2_PHY_UTMI_WIDE) { + u32 reg = 0; + + if (pdata->invert_drvvbus) + reg |= GC_PPP; + + if (pdata->invert_pwr_fault) + reg |= GC_PFP; + + out_be32(pdata->regs + ISIPHYCTRL, PHYCTRL_PHYE | PHYCTRL_PXE); + out_be32(pdata->regs + USBGENCTRL, reg); + } + return 0; +} + +static void fsl_usb2_mpc5121_exit(struct platform_device *pdev) +{ + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + + pdata->regs = NULL; + + if (pdata->clk) { + clk_disable(pdata->clk); + clk_put(pdata->clk); + } +} + +struct fsl_usb2_platform_data fsl_usb2_mpc5121_pd = { + .big_endian_desc = 1, + .big_endian_mmio = 1, + .es = 1, + .le_setup_buf = 1, + .init = fsl_usb2_mpc5121_init, + .exit = fsl_usb2_mpc5121_exit, +}; +#endif /* CONFIG_PPC_MPC512x */ + +static const struct of_device_id fsl_usb2_mph_dr_of_match[] = { + { .compatible = "fsl-usb2-mph", }, + { .compatible = "fsl-usb2-dr", }, +#ifdef CONFIG_PPC_MPC512x + { .compatible = "fsl,mpc5121-usb2-dr", .data = &fsl_usb2_mpc5121_pd, }, +#endif + {}, +}; + +static struct platform_driver fsl_usb2_mph_dr_driver = { + .driver = { + .name = "fsl-usb2-mph-dr", + .owner = THIS_MODULE, + .of_match_table = fsl_usb2_mph_dr_of_match, + }, + .probe = fsl_usb2_mph_dr_of_probe, + .remove = __devexit_p(fsl_usb2_mph_dr_of_remove), +}; + +static int __init fsl_usb2_mph_dr_init(void) +{ + return platform_driver_register(&fsl_usb2_mph_dr_driver); +} +module_init(fsl_usb2_mph_dr_init); + +static void __exit fsl_usb2_mph_dr_exit(void) +{ + platform_driver_unregister(&fsl_usb2_mph_dr_driver); +} +module_exit(fsl_usb2_mph_dr_exit); + +MODULE_DESCRIPTION("FSL MPH DR OF devices driver"); +MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c index 3e5630369c3..e49b75a7800 100644 --- a/drivers/usb/host/imx21-hcd.c +++ b/drivers/usb/host/imx21-hcd.c @@ -27,8 +27,8 @@ * * 32 transfer descriptors (called ETDs) * * 4Kb of Data memory * - * The data memory is shared between the host and fuction controlers - * (but this driver only supports the host controler) + * The data memory is shared between the host and function controllers + * (but this driver only supports the host controller) * * So setting up a transfer involves: * * Allocating a ETD @@ -57,6 +57,7 @@ #include <linux/slab.h> #include <linux/usb.h> #include <linux/usb/hcd.h> +#include <linux/dma-mapping.h> #include "imx21-hcd.h" @@ -136,9 +137,18 @@ static int imx21_hc_get_frame(struct usb_hcd *hcd) return wrap_frame(readl(imx21->regs + USBH_FRMNUB)); } +static inline bool unsuitable_for_dma(dma_addr_t addr) +{ + return (addr & 3) != 0; +} #include "imx21-dbg.c" +static void nonisoc_urb_completed_for_etd( + struct imx21 *imx21, struct etd_priv *etd, int status); +static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb); +static void free_dmem(struct imx21 *imx21, struct etd_priv *etd); + /* =========================================== */ /* ETD management */ /* =========================================== */ @@ -185,7 +195,8 @@ static void reset_etd(struct imx21 *imx21, int num) etd_writel(imx21, num, i, 0); etd->urb = NULL; etd->ep = NULL; - etd->td = NULL;; + etd->td = NULL; + etd->bounce_buffer = NULL; } static void free_etd(struct imx21 *imx21, int num) @@ -221,26 +232,94 @@ static void setup_etd_dword0(struct imx21 *imx21, ((u32) maxpacket << DW0_MAXPKTSIZ)); } -static void activate_etd(struct imx21 *imx21, - int etd_num, dma_addr_t dma, u8 dir) +/** + * Copy buffer to data controller data memory. + * We cannot use memcpy_toio() because the hardware requires 32bit writes + */ +static void copy_to_dmem( + struct imx21 *imx21, int dmem_offset, void *src, int count) +{ + void __iomem *dmem = imx21->regs + USBOTG_DMEM + dmem_offset; + u32 word = 0; + u8 *p = src; + int byte = 0; + int i; + + for (i = 0; i < count; i++) { + byte = i % 4; + word += (*p++ << (byte * 8)); + if (byte == 3) { + writel(word, dmem); + dmem += 4; + word = 0; + } + } + + if (count && byte != 3) + writel(word, dmem); +} + +static void activate_etd(struct imx21 *imx21, int etd_num, u8 dir) { u32 etd_mask = 1 << etd_num; struct etd_priv *etd = &imx21->etd[etd_num]; + if (etd->dma_handle && unsuitable_for_dma(etd->dma_handle)) { + /* For non aligned isoc the condition below is always true */ + if (etd->len <= etd->dmem_size) { + /* Fits into data memory, use PIO */ + if (dir != TD_DIR_IN) { + copy_to_dmem(imx21, + etd->dmem_offset, + etd->cpu_buffer, etd->len); + } + etd->dma_handle = 0; + + } else { + /* Too big for data memory, use bounce buffer */ + enum dma_data_direction dmadir; + + if (dir == TD_DIR_IN) { + dmadir = DMA_FROM_DEVICE; + etd->bounce_buffer = kmalloc(etd->len, + GFP_ATOMIC); + } else { + dmadir = DMA_TO_DEVICE; + etd->bounce_buffer = kmemdup(etd->cpu_buffer, + etd->len, + GFP_ATOMIC); + } + if (!etd->bounce_buffer) { + dev_err(imx21->dev, "failed bounce alloc\n"); + goto err_bounce_alloc; + } + + etd->dma_handle = + dma_map_single(imx21->dev, + etd->bounce_buffer, + etd->len, + dmadir); + if (dma_mapping_error(imx21->dev, etd->dma_handle)) { + dev_err(imx21->dev, "failed bounce map\n"); + goto err_bounce_map; + } + } + } + clear_toggle_bit(imx21, USBH_ETDDONESTAT, etd_mask); set_register_bits(imx21, USBH_ETDDONEEN, etd_mask); clear_toggle_bit(imx21, USBH_XFILLSTAT, etd_mask); clear_toggle_bit(imx21, USBH_YFILLSTAT, etd_mask); - if (dma) { + if (etd->dma_handle) { set_register_bits(imx21, USB_ETDDMACHANLCLR, etd_mask); clear_toggle_bit(imx21, USBH_XBUFSTAT, etd_mask); clear_toggle_bit(imx21, USBH_YBUFSTAT, etd_mask); - writel(dma, imx21->regs + USB_ETDSMSA(etd_num)); + writel(etd->dma_handle, imx21->regs + USB_ETDSMSA(etd_num)); set_register_bits(imx21, USB_ETDDMAEN, etd_mask); } else { if (dir != TD_DIR_IN) { - /* need to set for ZLP */ + /* need to set for ZLP and PIO */ set_toggle_bit(imx21, USBH_XFILLSTAT, etd_mask); set_toggle_bit(imx21, USBH_YFILLSTAT, etd_mask); } @@ -263,6 +342,14 @@ static void activate_etd(struct imx21 *imx21, etd->active_count = 1; writel(etd_mask, imx21->regs + USBH_ETDENSET); + return; + +err_bounce_map: + kfree(etd->bounce_buffer); + +err_bounce_alloc: + free_dmem(imx21, etd); + nonisoc_urb_completed_for_etd(imx21, etd, -ENOMEM); } /* =========================================== */ @@ -323,16 +410,23 @@ static void activate_queued_etd(struct imx21 *imx21, etd_writel(imx21, etd_num, 1, ((dmem_offset + maxpacket) << DW1_YBUFSRTAD) | dmem_offset); + etd->dmem_offset = dmem_offset; urb_priv->active = 1; - activate_etd(imx21, etd_num, etd->dma_handle, dir); + activate_etd(imx21, etd_num, dir); } -static void free_dmem(struct imx21 *imx21, int offset) +static void free_dmem(struct imx21 *imx21, struct etd_priv *etd) { struct imx21_dmem_area *area; - struct etd_priv *etd, *tmp; + struct etd_priv *tmp; int found = 0; + int offset; + if (!etd->dmem_size) + return; + etd->dmem_size = 0; + + offset = etd->dmem_offset; list_for_each_entry(area, &imx21->dmem_list, list) { if (area->offset == offset) { debug_dmem_freed(imx21, area->size); @@ -378,20 +472,23 @@ static void free_epdmem(struct imx21 *imx21, struct usb_host_endpoint *ep) /* =========================================== */ /* End handling */ /* =========================================== */ -static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb); /* Endpoint now idle - release it's ETD(s) or asssign to queued request */ static void ep_idle(struct imx21 *imx21, struct ep_priv *ep_priv) { - int etd_num; int i; for (i = 0; i < NUM_ISO_ETDS; i++) { - etd_num = ep_priv->etd[i]; + int etd_num = ep_priv->etd[i]; + struct etd_priv *etd; if (etd_num < 0) continue; + etd = &imx21->etd[etd_num]; ep_priv->etd[i] = -1; + + free_dmem(imx21, etd); /* for isoc */ + if (list_empty(&imx21->queue_for_etd)) { free_etd(imx21, etd_num); continue; @@ -437,6 +534,24 @@ __acquires(imx21->lock) ep_idle(imx21, ep_priv); } +static void nonisoc_urb_completed_for_etd( + struct imx21 *imx21, struct etd_priv *etd, int status) +{ + struct usb_host_endpoint *ep = etd->ep; + + urb_done(imx21->hcd, etd->urb, status); + etd->urb = NULL; + + if (!list_empty(&ep->urb_list)) { + struct urb *urb = list_first_entry( + &ep->urb_list, struct urb, urb_list); + + dev_vdbg(imx21->dev, "next URB %p\n", urb); + schedule_nonisoc_etd(imx21, urb); + } +} + + /* =========================================== */ /* ISOC Handling ... */ /* =========================================== */ @@ -489,6 +604,8 @@ too_late: etd->ep = td->ep; etd->urb = td->urb; etd->len = td->len; + etd->dma_handle = td->dma_handle; + etd->cpu_buffer = td->cpu_buffer; debug_isoc_submitted(imx21, cur_frame, td); @@ -502,16 +619,17 @@ too_late: (TD_NOTACCESSED << DW3_COMPCODE0) | (td->len << DW3_PKTLEN0)); - activate_etd(imx21, etd_num, td->data, dir); + activate_etd(imx21, etd_num, dir); } } -static void isoc_etd_done(struct usb_hcd *hcd, struct urb *urb, int etd_num) +static void isoc_etd_done(struct usb_hcd *hcd, int etd_num) { struct imx21 *imx21 = hcd_to_imx21(hcd); int etd_mask = 1 << etd_num; - struct urb_priv *urb_priv = urb->hcpriv; struct etd_priv *etd = imx21->etd + etd_num; + struct urb *urb = etd->urb; + struct urb_priv *urb_priv = urb->hcpriv; struct td *td = etd->td; struct usb_host_endpoint *ep = etd->ep; int isoc_index = td->isoc_index; @@ -545,8 +663,13 @@ static void isoc_etd_done(struct usb_hcd *hcd, struct urb *urb, int etd_num) bytes_xfrd, td->len, urb, etd_num, isoc_index); } - if (dir_in) + if (dir_in) { clear_toggle_bit(imx21, USBH_XFILLSTAT, etd_mask); + if (!etd->dma_handle) + memcpy_fromio(etd->cpu_buffer, + imx21->regs + USBOTG_DMEM + etd->dmem_offset, + bytes_xfrd); + } urb->actual_length += bytes_xfrd; urb->iso_frame_desc[isoc_index].actual_length = bytes_xfrd; @@ -569,30 +692,43 @@ static struct ep_priv *alloc_isoc_ep( int i; ep_priv = kzalloc(sizeof(struct ep_priv), GFP_ATOMIC); - if (ep_priv == NULL) + if (!ep_priv) return NULL; - /* Allocate the ETDs */ - for (i = 0; i < NUM_ISO_ETDS; i++) { - ep_priv->etd[i] = alloc_etd(imx21); - if (ep_priv->etd[i] < 0) { - int j; - dev_err(imx21->dev, "isoc: Couldn't allocate etd\n"); - for (j = 0; j < i; j++) - free_etd(imx21, ep_priv->etd[j]); - goto alloc_etd_failed; - } - imx21->etd[ep_priv->etd[i]].ep = ep; - } + for (i = 0; i < NUM_ISO_ETDS; i++) + ep_priv->etd[i] = -1; INIT_LIST_HEAD(&ep_priv->td_list); ep_priv->ep = ep; ep->hcpriv = ep_priv; return ep_priv; +} + +static int alloc_isoc_etds(struct imx21 *imx21, struct ep_priv *ep_priv) +{ + int i, j; + int etd_num; + + /* Allocate the ETDs if required */ + for (i = 0; i < NUM_ISO_ETDS; i++) { + if (ep_priv->etd[i] < 0) { + etd_num = alloc_etd(imx21); + if (etd_num < 0) + goto alloc_etd_failed; + + ep_priv->etd[i] = etd_num; + imx21->etd[etd_num].ep = ep_priv->ep; + } + } + return 0; alloc_etd_failed: - kfree(ep_priv); - return NULL; + dev_err(imx21->dev, "isoc: Couldn't allocate etd\n"); + for (j = 0; j < i; j++) { + free_etd(imx21, ep_priv->etd[j]); + ep_priv->etd[j] = -1; + } + return -ENOMEM; } static int imx21_hc_urb_enqueue_isoc(struct usb_hcd *hcd, @@ -632,6 +768,10 @@ static int imx21_hc_urb_enqueue_isoc(struct usb_hcd *hcd, ep_priv = ep->hcpriv; } + ret = alloc_isoc_etds(imx21, ep_priv); + if (ret) + goto alloc_etd_failed; + ret = usb_hcd_link_urb_to_ep(hcd, urb); if (ret) goto link_failed; @@ -688,12 +828,14 @@ static int imx21_hc_urb_enqueue_isoc(struct usb_hcd *hcd, /* set up transfers */ td = urb_priv->isoc_td; for (i = 0; i < urb->number_of_packets; i++, td++) { + unsigned int offset = urb->iso_frame_desc[i].offset; td->ep = ep; td->urb = urb; td->len = urb->iso_frame_desc[i].length; td->isoc_index = i; td->frame = wrap_frame(urb->start_frame + urb->interval * i); - td->data = urb->transfer_dma + urb->iso_frame_desc[i].offset; + td->dma_handle = urb->transfer_dma + offset; + td->cpu_buffer = urb->transfer_buffer + offset; list_add_tail(&td->list, &ep_priv->td_list); } @@ -711,6 +853,7 @@ alloc_dmem_failed: usb_hcd_unlink_urb_from_ep(hcd, urb); link_failed: +alloc_etd_failed: alloc_ep_failed: spin_unlock_irqrestore(&imx21->lock, flags); kfree(urb_priv->isoc_td); @@ -734,9 +877,7 @@ static void dequeue_isoc_urb(struct imx21 *imx21, struct etd_priv *etd = imx21->etd + etd_num; reset_etd(imx21, etd_num); - if (etd->dmem_size) - free_dmem(imx21, etd->dmem_offset); - etd->dmem_size = 0; + free_dmem(imx21, etd); } } } @@ -761,7 +902,6 @@ static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb) int state = urb_priv->state; int etd_num = ep_priv->etd[0]; struct etd_priv *etd; - int dmem_offset; u32 count; u16 etd_buf_size; u16 maxpacket; @@ -786,13 +926,15 @@ static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb) if (usb_pipecontrol(pipe) && (state != US_CTRL_DATA)) { if (state == US_CTRL_SETUP) { dir = TD_DIR_SETUP; + if (unsuitable_for_dma(urb->setup_dma)) + unmap_urb_setup_for_dma(imx21->hcd, urb); etd->dma_handle = urb->setup_dma; + etd->cpu_buffer = urb->setup_packet; bufround = 0; count = 8; datatoggle = TD_TOGGLE_DATA0; } else { /* US_CTRL_ACK */ dir = usb_pipeout(pipe) ? TD_DIR_IN : TD_DIR_OUT; - etd->dma_handle = urb->transfer_dma; bufround = 0; count = 0; datatoggle = TD_TOGGLE_DATA1; @@ -800,7 +942,11 @@ static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb) } else { dir = usb_pipeout(pipe) ? TD_DIR_OUT : TD_DIR_IN; bufround = (dir == TD_DIR_IN) ? 1 : 0; + if (unsuitable_for_dma(urb->transfer_dma)) + unmap_urb_for_dma(imx21->hcd, urb); + etd->dma_handle = urb->transfer_dma; + etd->cpu_buffer = urb->transfer_buffer; if (usb_pipebulk(pipe) && (state == US_BULK0)) count = 0; else @@ -855,8 +1001,8 @@ static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb) /* allocate x and y buffer space at once */ etd->dmem_size = (count > maxpacket) ? maxpacket * 2 : maxpacket; - dmem_offset = alloc_dmem(imx21, etd->dmem_size, urb_priv->ep); - if (dmem_offset < 0) { + etd->dmem_offset = alloc_dmem(imx21, etd->dmem_size, urb_priv->ep); + if (etd->dmem_offset < 0) { /* Setup everything we can in HW and update when we get DMEM */ etd_writel(imx21, etd_num, 1, (u32)maxpacket << 16); @@ -867,26 +1013,26 @@ static void schedule_nonisoc_etd(struct imx21 *imx21, struct urb *urb) } etd_writel(imx21, etd_num, 1, - (((u32) dmem_offset + (u32) maxpacket) << DW1_YBUFSRTAD) | - (u32) dmem_offset); + (((u32) etd->dmem_offset + (u32) maxpacket) << DW1_YBUFSRTAD) | + (u32) etd->dmem_offset); urb_priv->active = 1; /* enable the ETD to kick off transfer */ dev_vdbg(imx21->dev, "Activating etd %d for %d bytes %s\n", etd_num, count, dir != TD_DIR_IN ? "out" : "in"); - activate_etd(imx21, etd_num, etd->dma_handle, dir); + activate_etd(imx21, etd_num, dir); } -static void nonisoc_etd_done(struct usb_hcd *hcd, struct urb *urb, int etd_num) +static void nonisoc_etd_done(struct usb_hcd *hcd, int etd_num) { struct imx21 *imx21 = hcd_to_imx21(hcd); struct etd_priv *etd = &imx21->etd[etd_num]; + struct urb *urb = etd->urb; u32 etd_mask = 1 << etd_num; struct urb_priv *urb_priv = urb->hcpriv; int dir; - u16 xbufaddr; int cc; u32 bytes_xfrd; int etd_done; @@ -894,7 +1040,6 @@ static void nonisoc_etd_done(struct usb_hcd *hcd, struct urb *urb, int etd_num) disactivate_etd(imx21, etd_num); dir = (etd_readl(imx21, etd_num, 0) >> DW0_DIRECT) & 0x3; - xbufaddr = etd_readl(imx21, etd_num, 1) & 0xffff; cc = (etd_readl(imx21, etd_num, 2) >> DW2_COMPCODE) & 0xf; bytes_xfrd = etd->len - (etd_readl(imx21, etd_num, 3) & 0x1fffff); @@ -906,8 +1051,21 @@ static void nonisoc_etd_done(struct usb_hcd *hcd, struct urb *urb, int etd_num) if (dir == TD_DIR_IN) { clear_toggle_bit(imx21, USBH_XFILLSTAT, etd_mask); clear_toggle_bit(imx21, USBH_YFILLSTAT, etd_mask); + + if (etd->bounce_buffer) { + memcpy(etd->cpu_buffer, etd->bounce_buffer, bytes_xfrd); + dma_unmap_single(imx21->dev, + etd->dma_handle, etd->len, DMA_FROM_DEVICE); + } else if (!etd->dma_handle && bytes_xfrd) {/* PIO */ + memcpy_fromio(etd->cpu_buffer, + imx21->regs + USBOTG_DMEM + etd->dmem_offset, + bytes_xfrd); + } } - free_dmem(imx21, xbufaddr); + + kfree(etd->bounce_buffer); + etd->bounce_buffer = NULL; + free_dmem(imx21, etd); urb->error_count = 0; if (!(urb->transfer_flags & URB_SHORT_NOT_OK) @@ -964,24 +1122,15 @@ static void nonisoc_etd_done(struct usb_hcd *hcd, struct urb *urb, int etd_num) break; } - if (!etd_done) { + if (etd_done) + nonisoc_urb_completed_for_etd(imx21, etd, cc_to_error[cc]); + else { dev_vdbg(imx21->dev, "next state=%d\n", urb_priv->state); schedule_nonisoc_etd(imx21, urb); - } else { - struct usb_host_endpoint *ep = urb->ep; - - urb_done(hcd, urb, cc_to_error[cc]); - etd->urb = NULL; - - if (!list_empty(&ep->urb_list)) { - urb = list_first_entry(&ep->urb_list, - struct urb, urb_list); - dev_vdbg(imx21->dev, "next URB %p\n", urb); - schedule_nonisoc_etd(imx21, urb); - } } } + static struct ep_priv *alloc_ep(void) { int i; @@ -1007,7 +1156,6 @@ static int imx21_hc_urb_enqueue(struct usb_hcd *hcd, struct etd_priv *etd; int ret; unsigned long flags; - int new_ep = 0; dev_vdbg(imx21->dev, "enqueue urb=%p ep=%p len=%d " @@ -1035,7 +1183,6 @@ static int imx21_hc_urb_enqueue(struct usb_hcd *hcd, } ep->hcpriv = ep_priv; ep_priv->ep = ep; - new_ep = 1; } ret = usb_hcd_link_urb_to_ep(hcd, urb); @@ -1124,9 +1271,13 @@ static int imx21_hc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, } else if (urb_priv->active) { int etd_num = ep_priv->etd[0]; if (etd_num != -1) { + struct etd_priv *etd = &imx21->etd[etd_num]; + disactivate_etd(imx21, etd_num); - free_dmem(imx21, etd_readl(imx21, etd_num, 1) & 0xffff); - imx21->etd[etd_num].urb = NULL; + free_dmem(imx21, etd); + etd->urb = NULL; + kfree(etd->bounce_buffer); + etd->bounce_buffer = NULL; } } @@ -1226,9 +1377,9 @@ static void process_etds(struct usb_hcd *hcd, struct imx21 *imx21, int sof) } if (usb_pipeisoc(etd->urb->pipe)) - isoc_etd_done(hcd, etd->urb, etd_num); + isoc_etd_done(hcd, etd_num); else - nonisoc_etd_done(hcd, etd->urb, etd_num); + nonisoc_etd_done(hcd, etd_num); } /* only enable SOF interrupt if it may be needed for the kludge */ @@ -1696,6 +1847,7 @@ static int imx21_probe(struct platform_device *pdev) } imx21 = hcd_to_imx21(hcd); + imx21->hcd = hcd; imx21->dev = &pdev->dev; imx21->pdata = pdev->dev.platform_data; if (!imx21->pdata) @@ -1754,7 +1906,7 @@ failed_clock_set: failed_clock_get: iounmap(imx21->regs); failed_ioremap: - release_mem_region(res->start, res->end - res->start); + release_mem_region(res->start, resource_size(res)); failed_request_mem: remove_debug_files(imx21); usb_put_hcd(hcd); diff --git a/drivers/usb/host/imx21-hcd.h b/drivers/usb/host/imx21-hcd.h index 1b0d913780a..87b29fd971b 100644 --- a/drivers/usb/host/imx21-hcd.h +++ b/drivers/usb/host/imx21-hcd.h @@ -250,6 +250,7 @@ #define USBCTRL_USB_BYP (1 << 2) #define USBCTRL_HOST1_TXEN_OE (1 << 1) +#define USBOTG_DMEM 0x1000 /* Values in TD blocks */ #define TD_DIR_SETUP 0 @@ -346,8 +347,8 @@ struct td { struct list_head list; struct urb *urb; struct usb_host_endpoint *ep; - dma_addr_t data; - unsigned long buf_addr; + dma_addr_t dma_handle; + void *cpu_buffer; int len; int frame; int isoc_index; @@ -360,6 +361,8 @@ struct etd_priv { struct td *td; struct list_head queue; dma_addr_t dma_handle; + void *cpu_buffer; + void *bounce_buffer; int alloc; int len; int dmem_size; @@ -412,6 +415,7 @@ struct debug_isoc_trace { struct imx21 { spinlock_t lock; struct device *dev; + struct usb_hcd *hcd; struct mx21_usbh_platform_data *pdata; struct list_head dmem_list; struct list_head queue_for_etd; /* eps queued due to etd shortage */ diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index d9e82123de2..0da7fc05f45 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1557,8 +1557,6 @@ static int isp116x_remove(struct platform_device *pdev) return 0; } -#define resource_len(r) (((r)->end - (r)->start) + 1) - static int __devinit isp116x_probe(struct platform_device *pdev) { struct usb_hcd *hcd; @@ -1597,7 +1595,7 @@ static int __devinit isp116x_probe(struct platform_device *pdev) ret = -EBUSY; goto err1; } - addr_reg = ioremap(addr->start, resource_len(addr)); + addr_reg = ioremap(addr->start, resource_size(addr)); if (addr_reg == NULL) { ret = -ENOMEM; goto err2; @@ -1606,7 +1604,7 @@ static int __devinit isp116x_probe(struct platform_device *pdev) ret = -EBUSY; goto err3; } - data_reg = ioremap(data->start, resource_len(data)); + data_reg = ioremap(data->start, resource_size(data)); if (data_reg == NULL) { ret = -ENOMEM; goto err4; diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index 0587ad4ce5c..8196fa11fec 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -1676,13 +1676,6 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, switch (wValue) { case USB_PORT_FEAT_SUSPEND: _DBG(0, "USB_PORT_FEAT_SUSPEND\n"); -#ifdef CONFIG_USB_OTG - if (ohci->hcd.self.otg_port == (wIndex + 1) && - ohci->hcd.self.b_hnp_enable) { - start_hnp(ohci); - break; - } -#endif spin_lock_irqsave(&isp1362_hcd->lock, flags); isp1362_write_reg32(isp1362_hcd, HCRHPORT1 + wIndex, RH_PS_PSS); isp1362_hcd->rhport[wIndex] = @@ -2656,8 +2649,6 @@ static struct hc_driver isp1362_hc_driver = { /*-------------------------------------------------------------------------*/ -#define resource_len(r) (((r)->end - (r)->start) + 1) - static int __devexit isp1362_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); @@ -2679,12 +2670,12 @@ static int __devexit isp1362_remove(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 1); DBG(0, "%s: release mem_region: %08lx\n", __func__, (long unsigned int)res->start); if (res) - release_mem_region(res->start, resource_len(res)); + release_mem_region(res->start, resource_size(res)); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); DBG(0, "%s: release mem_region: %08lx\n", __func__, (long unsigned int)res->start); if (res) - release_mem_region(res->start, resource_len(res)); + release_mem_region(res->start, resource_size(res)); DBG(0, "%s: put_hcd\n", __func__); usb_put_hcd(hcd); @@ -2730,21 +2721,21 @@ static int __init isp1362_probe(struct platform_device *pdev) goto err1; } - if (!request_mem_region(addr->start, resource_len(addr), hcd_name)) { + if (!request_mem_region(addr->start, resource_size(addr), hcd_name)) { retval = -EBUSY; goto err1; } - addr_reg = ioremap(addr->start, resource_len(addr)); + addr_reg = ioremap(addr->start, resource_size(addr)); if (addr_reg == NULL) { retval = -ENOMEM; goto err2; } - if (!request_mem_region(data->start, resource_len(data), hcd_name)) { + if (!request_mem_region(data->start, resource_size(data), hcd_name)) { retval = -EBUSY; goto err3; } - data_reg = ioremap(data->start, resource_len(data)); + data_reg = ioremap(data->start, resource_size(data)); if (data_reg == NULL) { retval = -ENOMEM; goto err4; @@ -2802,13 +2793,13 @@ static int __init isp1362_probe(struct platform_device *pdev) iounmap(data_reg); err4: DBG(0, "%s: Releasing mem region %08lx\n", __func__, (long unsigned int)data->start); - release_mem_region(data->start, resource_len(data)); + release_mem_region(data->start, resource_size(data)); err3: DBG(0, "%s: Unmapping addr_reg @ %p\n", __func__, addr_reg); iounmap(addr_reg); err2: DBG(0, "%s: Releasing mem region %08lx\n", __func__, (long unsigned int)addr->start); - release_mem_region(addr->start, resource_len(addr)); + release_mem_region(addr->start, resource_size(addr)); err1: pr_err("%s: init error, %d\n", __func__, retval); diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index 36abd2baa3e..d7d34492934 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -413,18 +413,21 @@ static const struct file_operations debug_async_fops = { .open = debug_async_open, .read = debug_output, .release = debug_close, + .llseek = default_llseek, }; static const struct file_operations debug_periodic_fops = { .owner = THIS_MODULE, .open = debug_periodic_open, .read = debug_output, .release = debug_close, + .llseek = default_llseek, }; static const struct file_operations debug_registers_fops = { .owner = THIS_MODULE, .open = debug_registers_open, .read = debug_output, .release = debug_close, + .llseek = default_llseek, }; static struct dentry *ohci_debug_root; diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index c3b4ccc7337..f3713f43f3f 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -370,7 +370,6 @@ sanitize: } ep->hcpriv = NULL; spin_unlock_irqrestore (&ohci->lock, flags); - return; } static int ohci_get_frame (struct usb_hcd *hcd) @@ -398,7 +397,14 @@ ohci_shutdown (struct usb_hcd *hcd) ohci = hcd_to_ohci (hcd); ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); - ohci_usb_reset (ohci); + ohci->hc_control = ohci_readl(ohci, &ohci->regs->control); + + /* If the SHUTDOWN quirk is set, don't put the controller in RESET */ + ohci->hc_control &= (ohci->flags & OHCI_QUIRK_SHUTDOWN ? + OHCI_CTRL_RWC | OHCI_CTRL_HCFS : + OHCI_CTRL_RWC); + ohci_writel(ohci, ohci->hc_control, &ohci->regs->control); + /* flush the writes */ (void) ohci_readl (ohci, &ohci->regs->control); } @@ -1270,6 +1276,9 @@ static void __exit ohci_hcd_mod_exit(void) #ifdef PLATFORM_DRIVER platform_driver_unregister(&PLATFORM_DRIVER); #endif +#ifdef OMAP3_PLATFORM_DRIVER + platform_driver_unregister(&OMAP3_PLATFORM_DRIVER); +#endif #ifdef PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); #endif diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 6bdc8b25a6a..36ee9a666e9 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -201,6 +201,20 @@ static int ohci_quirk_amd700(struct usb_hcd *hcd) return 0; } +/* nVidia controllers continue to drive Reset signalling on the bus + * even after system shutdown, wasting power. This flag tells the + * shutdown routine to leave the controller OPERATIONAL instead of RESET. + */ +static int ohci_quirk_nvidia_shutdown(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + + ohci->flags |= OHCI_QUIRK_SHUTDOWN; + ohci_dbg(ohci, "enabled nVidia shutdown quirk\n"); + + return 0; +} + /* * The hardware normally enables the A-link power management feature, which * lets the system lower the power consumption in idle states. @@ -332,6 +346,10 @@ static const struct pci_device_id ohci_pci_quirks[] = { PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4399), .driver_data = (unsigned long)ohci_quirk_amd700, }, + { + PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), + .driver_data = (unsigned long) ohci_quirk_nvidia_shutdown, + }, /* FIXME for some of the early AMD 760 southbridges, OHCI * won't work at all. blacklist them. diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 41816389477..afef7b0a419 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -24,6 +24,7 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <mach/ohci.h> +#include <mach/pxa3xx-u2d.h> /* * UHC: USB Host Controller (OHCI-like) register definitions @@ -235,6 +236,9 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) if (retval < 0) return retval; + if (cpu_is_pxa3xx()) + pxa3xx_u2d_start_hc(&ohci_to_hcd(&ohci->ohci)->self); + uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE; __raw_writel(uhchr, ohci->mmio_base + UHCHR); __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, ohci->mmio_base + UHCHIE); @@ -251,6 +255,9 @@ static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev) inf = dev->platform_data; + if (cpu_is_pxa3xx()) + pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self); + if (inf->exit) inf->exit(dev); diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c index 60f03cc7ec4..0b35d22cc70 100644 --- a/drivers/usb/host/ohci-sh.c +++ b/drivers/usb/host/ohci-sh.c @@ -77,7 +77,6 @@ static const struct hc_driver ohci_sh_hc_driver = { /*-------------------------------------------------------------------------*/ -#define resource_len(r) (((r)->end - (r)->start) + 1) static int ohci_hcd_sh_probe(struct platform_device *pdev) { struct resource *res = NULL; @@ -109,7 +108,7 @@ static int ohci_hcd_sh_probe(struct platform_device *pdev) hcd->regs = (void __iomem *)res->start; hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_len(res); + hcd->rsrc_len = resource_size(res); ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); if (ret != 0) { err("Failed to add hcd"); diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c index cff23637cfc..041d30f30c1 100644 --- a/drivers/usb/host/ohci-sm501.c +++ b/drivers/usb/host/ohci-sm501.c @@ -168,7 +168,7 @@ static int ohci_hcd_sm501_drv_probe(struct platform_device *pdev) retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (retval) - goto err4; + goto err5; /* enable power and unmask interrupts */ @@ -176,6 +176,8 @@ static int ohci_hcd_sm501_drv_probe(struct platform_device *pdev) sm501_modify_reg(dev->parent, SM501_IRQ_MASK, 1 << 6, 0); return 0; +err5: + iounmap(hcd->regs); err4: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err3: diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index 5bf15fed0d9..51facb985c8 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -403,6 +403,7 @@ struct ohci_hcd { #define OHCI_QUIRK_HUB_POWER 0x100 /* distrust firmware power/oc setup */ #define OHCI_QUIRK_AMD_ISO 0x200 /* ISO transfers*/ #define OHCI_QUIRK_AMD_PREFETCH 0x400 /* pre-fetch for ISO transfer */ +#define OHCI_QUIRK_SHUTDOWN 0x800 /* nVidia power bug */ // there are also chip quirks/bugs in init logic struct work_struct nec_work; /* Worker for NEC quirk */ diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index d9c85a29273..32149be4ad8 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -544,8 +544,6 @@ static void oxu_buf_free(struct oxu_hcd *oxu, struct ehci_qtd *qtd) qtd->buffer = NULL; spin_unlock(&oxu->mem_lock); - - return; } static inline void ehci_qtd_init(struct ehci_qtd *qtd, dma_addr_t dma) @@ -571,8 +569,6 @@ static inline void oxu_qtd_free(struct oxu_hcd *oxu, struct ehci_qtd *qtd) oxu->qtd_used[index] = 0; spin_unlock(&oxu->mem_lock); - - return; } static struct ehci_qtd *ehci_qtd_alloc(struct oxu_hcd *oxu) @@ -615,8 +611,6 @@ static void oxu_qh_free(struct oxu_hcd *oxu, struct ehci_qh *qh) oxu->qh_used[index] = 0; spin_unlock(&oxu->mem_lock); - - return; } static void qh_destroy(struct kref *kref) @@ -693,8 +687,6 @@ static void oxu_murb_free(struct oxu_hcd *oxu, struct oxu_murb *murb) oxu->murb_used[index] = 0; spin_unlock(&oxu->mem_lock); - - return; } static struct oxu_murb *oxu_murb_alloc(struct oxu_hcd *oxu) @@ -3070,7 +3062,6 @@ nogood: ep->hcpriv = NULL; done: spin_unlock_irqrestore(&oxu->lock, flags); - return; } static int oxu_get_frame(struct usb_hcd *hcd) @@ -3696,7 +3687,7 @@ static void oxu_configuration(struct platform_device *pdev, void *base) static int oxu_verify_id(struct platform_device *pdev, void *base) { u32 id; - char *bo[] = { + static const char * const bo[] = { "reserved", "128-pin LQFP", "84-pin TFBGA", diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 83b5f9cea85..4c502c890eb 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -169,6 +169,7 @@ static int __devinit mmio_resource_enabled(struct pci_dev *pdev, int idx) static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev) { void __iomem *base; + u32 control; if (!mmio_resource_enabled(pdev, 0)) return; @@ -177,10 +178,14 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev) if (base == NULL) return; + control = readl(base + OHCI_CONTROL); + /* On PA-RISC, PDC can leave IR set incorrectly; ignore it there. */ -#ifndef __hppa__ -{ - u32 control = readl(base + OHCI_CONTROL); +#ifdef __hppa__ +#define OHCI_CTRL_MASK (OHCI_CTRL_RWC | OHCI_CTRL_IR) +#else +#define OHCI_CTRL_MASK OHCI_CTRL_RWC + if (control & OHCI_CTRL_IR) { int wait_time = 500; /* arbitrary; 5 seconds */ writel(OHCI_INTR_OC, base + OHCI_INTRENABLE); @@ -194,13 +199,12 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev) dev_warn(&pdev->dev, "OHCI: BIOS handoff failed" " (BIOS bug?) %08x\n", readl(base + OHCI_CONTROL)); - - /* reset controller, preserving RWC */ - writel(control & OHCI_CTRL_RWC, base + OHCI_CONTROL); } -} #endif + /* reset controller, preserving RWC (and possibly IR) */ + writel(control & OHCI_CTRL_MASK, base + OHCI_CONTROL); + /* * disable interrupts */ @@ -338,8 +342,6 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev) writel(0x3f, op_reg_base + EHCI_USBSTS); iounmap(base); - - return; } /* diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 77be3c24a42..3076b1cc05d 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -2397,7 +2397,7 @@ static const struct dev_pm_ops r8a66597_dev_pm_ops = { #define R8A66597_DEV_PM_OPS NULL #endif -static int __init_or_module r8a66597_remove(struct platform_device *pdev) +static int __devexit r8a66597_remove(struct platform_device *pdev) { struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597); @@ -2542,7 +2542,7 @@ clean_up: static struct platform_driver r8a66597_driver = { .probe = r8a66597_probe, - .remove = r8a66597_remove, + .remove = __devexit_p(r8a66597_remove), .driver = { .name = (char *) hcd_name, .owner = THIS_MODULE, diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h index 95d0f5adfdc..25563e9a90b 100644 --- a/drivers/usb/host/r8a66597.h +++ b/drivers/usb/host/r8a66597.h @@ -227,7 +227,7 @@ static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597, int odd = len & 0x0001; len = len / 2; - ioread16_rep(fifoaddr, buf, len); + iowrite16_rep(fifoaddr, buf, len); if (unlikely(odd)) { buf = &buf[len]; iowrite8((unsigned char)*buf, fifoaddr); diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c index 0e13a00eb2e..3775c035a6c 100644 --- a/drivers/usb/host/sl811_cs.c +++ b/drivers/usb/host/sl811_cs.c @@ -20,7 +20,6 @@ #include <linux/ioport.h> #include <linux/platform_device.h> -#include <pcmcia/cs.h> #include <pcmcia/cistpl.h> #include <pcmcia/cisreg.h> #include <pcmcia/ds.h> @@ -132,49 +131,12 @@ static void sl811_cs_release(struct pcmcia_device * link) platform_device_unregister(&platform_dev); } -static int sl811_cs_config_check(struct pcmcia_device *p_dev, - cistpl_cftable_entry_t *cfg, - cistpl_cftable_entry_t *dflt, - unsigned int vcc, - void *priv_data) +static int sl811_cs_config_check(struct pcmcia_device *p_dev, void *priv_data) { - if (cfg->index == 0) - return -ENODEV; - - /* Use power settings for Vcc and Vpp if present */ - /* Note that the CIS values need to be rescaled */ - if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) { - if (cfg->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc) - return -ENODEV; - } else if (dflt->vcc.present & (1<<CISTPL_POWER_VNOM)) { - if (dflt->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc) - return -ENODEV; - } - - if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM)) - p_dev->conf.Vpp = - cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; - else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM)) - p_dev->conf.Vpp = - dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; - - /* we need an interrupt */ - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; - - /* IO window settings */ - p_dev->resource[0]->end = p_dev->resource[1]->end = 0; - if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { - cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; - p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK; - - p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; - p_dev->resource[0]->start = io->win[0].base; - p_dev->resource[0]->end = io->win[0].len; - - return pcmcia_request_io(p_dev); - } - pcmcia_disable_device(p_dev); - return -ENODEV; + if (p_dev->config_index == 0) + return -EINVAL; + + return pcmcia_request_io(p_dev); } @@ -185,6 +147,9 @@ static int sl811_cs_config(struct pcmcia_device *link) dev_dbg(&link->dev, "sl811_cs_config\n"); + link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | + CONF_AUTO_CHECK_VCC | CONF_AUTO_SET_IO; + if (pcmcia_loop_config(link, sl811_cs_config_check, NULL)) goto failed; @@ -195,18 +160,10 @@ static int sl811_cs_config(struct pcmcia_device *link) if (!link->irq) goto failed; - ret = pcmcia_request_configuration(link, &link->conf); + ret = pcmcia_enable_device(link); if (ret) goto failed; - dev_info(&link->dev, "index 0x%02x: ", - link->conf.ConfigIndex); - if (link->conf.Vpp) - printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); - printk(", irq %d", link->irq); - printk(", io %pR", link->resource[0]); - printk("\n"); - if (sl811_hc_init(parent, link->resource[0]->start, link->irq) < 0) { failed: @@ -227,9 +184,6 @@ static int sl811_cs_probe(struct pcmcia_device *link) local->p_dev = link; link->priv = local; - link->conf.Attributes = 0; - link->conf.IntType = INT_MEMORY_AND_IO; - return sl811_cs_config(link); } @@ -241,9 +195,7 @@ MODULE_DEVICE_TABLE(pcmcia, sl811_ids); static struct pcmcia_driver sl811_cs_driver = { .owner = THIS_MODULE, - .drv = { - .name = "sl811_cs", - }, + .name = "sl811_cs", .probe = sl811_cs_probe, .remove = sl811_cs_detach, .id_table = sl811_ids, diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 5b31bae92db..fab764946c7 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -316,7 +316,6 @@ static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, } else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) return; kref_put(&u132->kref, u132_hcd_delete); - return; } static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, @@ -324,7 +323,6 @@ static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, { kref_get(&u132->kref); u132_ring_requeue_work(u132, ring, delta); - return; } static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) @@ -543,7 +541,6 @@ static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, mutex_unlock(&u132->scheduler_lock); u132_endp_put_kref(u132, endp); usb_hcd_giveback_urb(hcd, urb, status); - return; } static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, @@ -574,8 +571,8 @@ static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, endp->active = 0; spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); kfree(urbq); - } usb_hcd_giveback_urb(hcd, urb, status); - return; + } + usb_hcd_giveback_urb(hcd, urb, status); } static inline int edset_input(struct u132 *u132, struct u132_ring *ring, @@ -3085,7 +3082,6 @@ static void u132_initialise(struct u132 *u132, struct platform_device *pdev) u132->endp[endps] = NULL; mutex_unlock(&u132->sw_lock); - return; } static int __devinit u132_probe(struct platform_device *pdev) diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index d3ade401848..2090b45eb60 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -917,10 +917,13 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, unsigned long destination, status; int maxsze = le16_to_cpu(qh->hep->desc.wMaxPacketSize); int len = urb->transfer_buffer_length; - dma_addr_t data = urb->transfer_dma; + int this_sg_len; + dma_addr_t data; __le32 *plink; struct urb_priv *urbp = urb->hcpriv; unsigned int toggle; + struct scatterlist *sg; + int i; if (len < 0) return -EINVAL; @@ -937,12 +940,26 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, if (usb_pipein(urb->pipe)) status |= TD_CTRL_SPD; + i = urb->num_sgs; + if (len > 0 && i > 0) { + sg = urb->sg; + data = sg_dma_address(sg); + + /* urb->transfer_buffer_length may be smaller than the + * size of the scatterlist (or vice versa) + */ + this_sg_len = min_t(int, sg_dma_len(sg), len); + } else { + sg = NULL; + data = urb->transfer_dma; + this_sg_len = len; + } /* * Build the DATA TDs */ plink = NULL; td = qh->dummy_td; - do { /* Allow zero length packets */ + for (;;) { /* Allow zero length packets */ int pktsze = maxsze; if (len <= pktsze) { /* The last packet */ @@ -965,10 +982,18 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, plink = &td->link; status |= TD_CTRL_ACTIVE; + toggle ^= 1; data += pktsze; + this_sg_len -= pktsze; len -= maxsze; - toggle ^= 1; - } while (len > 0); + if (this_sg_len <= 0) { + if (--i <= 0 || len <= 0) + break; + sg = sg_next(sg); + data = sg_dma_address(sg); + this_sg_len = min_t(int, sg_dma_len(sg), len); + } + } /* * URB_ZERO_PACKET means adding a 0-length packet, if direction diff --git a/drivers/usb/host/whci/Kbuild b/drivers/usb/host/whci/Kbuild index 11e5040b833..26df0138079 100644 --- a/drivers/usb/host/whci/Kbuild +++ b/drivers/usb/host/whci/Kbuild @@ -3,7 +3,7 @@ obj-$(CONFIG_USB_WHCI_HCD) += whci-hcd.o whci-hcd-y := \ asl.o \ debug.o \ - hcd.o \ + hcd.o \ hw.o \ init.o \ int.o \ diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index a1a7a979553..fef5a1f9d48 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -24,6 +24,10 @@ #include "xhci.h" +#define PORT_WAKE_BITS (PORT_WKOC_E | PORT_WKDISC_E | PORT_WKCONN_E) +#define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \ + PORT_RC | PORT_PLC | PORT_PE) + static void xhci_hub_descriptor(struct xhci_hcd *xhci, struct usb_hub_descriptor *desc) { @@ -123,12 +127,105 @@ static unsigned int xhci_port_speed(unsigned int port_status) * writing a 0 clears the bit and writing a 1 sets the bit (RWS). * For all other types (RW1S, RW1CS, RW, and RZ), writing a '0' has no effect. */ -static u32 xhci_port_state_to_neutral(u32 state) +u32 xhci_port_state_to_neutral(u32 state) { /* Save read-only status and port state */ return (state & XHCI_PORT_RO) | (state & XHCI_PORT_RWS); } +/* + * find slot id based on port number. + */ +int xhci_find_slot_id_by_port(struct xhci_hcd *xhci, u16 port) +{ + int slot_id; + int i; + + slot_id = 0; + for (i = 0; i < MAX_HC_SLOTS; i++) { + if (!xhci->devs[i]) + continue; + if (xhci->devs[i]->port == port) { + slot_id = i; + break; + } + } + + return slot_id; +} + +/* + * Stop device + * It issues stop endpoint command for EP 0 to 30. And wait the last command + * to complete. + * suspend will set to 1, if suspend bit need to set in command. + */ +static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend) +{ + struct xhci_virt_device *virt_dev; + struct xhci_command *cmd; + unsigned long flags; + int timeleft; + int ret; + int i; + + ret = 0; + virt_dev = xhci->devs[slot_id]; + cmd = xhci_alloc_command(xhci, false, true, GFP_NOIO); + if (!cmd) { + xhci_dbg(xhci, "Couldn't allocate command structure.\n"); + return -ENOMEM; + } + + spin_lock_irqsave(&xhci->lock, flags); + for (i = LAST_EP_INDEX; i > 0; i--) { + if (virt_dev->eps[i].ring && virt_dev->eps[i].ring->dequeue) + xhci_queue_stop_endpoint(xhci, slot_id, i, suspend); + } + cmd->command_trb = xhci->cmd_ring->enqueue; + list_add_tail(&cmd->cmd_list, &virt_dev->cmd_list); + xhci_queue_stop_endpoint(xhci, slot_id, 0, suspend); + xhci_ring_cmd_db(xhci); + spin_unlock_irqrestore(&xhci->lock, flags); + + /* Wait for last stop endpoint command to finish */ + timeleft = wait_for_completion_interruptible_timeout( + cmd->completion, + USB_CTRL_SET_TIMEOUT); + if (timeleft <= 0) { + xhci_warn(xhci, "%s while waiting for stop endpoint command\n", + timeleft == 0 ? "Timeout" : "Signal"); + spin_lock_irqsave(&xhci->lock, flags); + /* The timeout might have raced with the event ring handler, so + * only delete from the list if the item isn't poisoned. + */ + if (cmd->cmd_list.next != LIST_POISON1) + list_del(&cmd->cmd_list); + spin_unlock_irqrestore(&xhci->lock, flags); + ret = -ETIME; + goto command_cleanup; + } + +command_cleanup: + xhci_free_command(xhci, cmd); + return ret; +} + +/* + * Ring device, it rings the all doorbells unconditionally. + */ +void xhci_ring_device(struct xhci_hcd *xhci, int slot_id) +{ + int i; + + for (i = 0; i < LAST_EP_INDEX + 1; i++) + if (xhci->devs[slot_id]->eps[i].ring && + xhci->devs[slot_id]->eps[i].ring->dequeue) + xhci_ring_ep_doorbell(xhci, slot_id, i, 0); + + return; +} + static void xhci_disable_port(struct xhci_hcd *xhci, u16 wIndex, u32 __iomem *addr, u32 port_status) { @@ -162,6 +259,10 @@ static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue, status = PORT_PEC; port_change_bit = "enable/disable"; break; + case USB_PORT_FEAT_C_SUSPEND: + status = PORT_PLC; + port_change_bit = "suspend/resume"; + break; default: /* Should never happen */ return; @@ -179,9 +280,10 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, struct xhci_hcd *xhci = hcd_to_xhci(hcd); int ports; unsigned long flags; - u32 temp, status; + u32 temp, temp1, status; int retval = 0; u32 __iomem *addr; + int slot_id; ports = HCS_MAX_PORTS(xhci->hcs_params1); @@ -211,9 +313,49 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, if ((temp & PORT_OCC)) status |= USB_PORT_STAT_C_OVERCURRENT << 16; /* - * FIXME ignoring suspend, reset, and USB 2.1/3.0 specific + * FIXME ignoring reset and USB 2.1/3.0 specific * changes */ + if ((temp & PORT_PLS_MASK) == XDEV_U3 + && (temp & PORT_POWER)) + status |= 1 << USB_PORT_FEAT_SUSPEND; + if ((temp & PORT_PLS_MASK) == XDEV_RESUME) { + if ((temp & PORT_RESET) || !(temp & PORT_PE)) + goto error; + if (!DEV_SUPERSPEED(temp) && time_after_eq(jiffies, + xhci->resume_done[wIndex])) { + xhci_dbg(xhci, "Resume USB2 port %d\n", + wIndex + 1); + xhci->resume_done[wIndex] = 0; + temp1 = xhci_port_state_to_neutral(temp); + temp1 &= ~PORT_PLS_MASK; + temp1 |= PORT_LINK_STROBE | XDEV_U0; + xhci_writel(xhci, temp1, addr); + + xhci_dbg(xhci, "set port %d resume\n", + wIndex + 1); + slot_id = xhci_find_slot_id_by_port(xhci, + wIndex + 1); + if (!slot_id) { + xhci_dbg(xhci, "slot_id is zero\n"); + goto error; + } + xhci_ring_device(xhci, slot_id); + xhci->port_c_suspend[wIndex >> 5] |= + 1 << (wIndex & 31); + xhci->suspended_ports[wIndex >> 5] &= + ~(1 << (wIndex & 31)); + } + } + if ((temp & PORT_PLS_MASK) == XDEV_U0 + && (temp & PORT_POWER) + && (xhci->suspended_ports[wIndex >> 5] & + (1 << (wIndex & 31)))) { + xhci->suspended_ports[wIndex >> 5] &= + ~(1 << (wIndex & 31)); + xhci->port_c_suspend[wIndex >> 5] |= + 1 << (wIndex & 31); + } if (temp & PORT_CONNECT) { status |= USB_PORT_STAT_CONNECTION; status |= xhci_port_speed(temp); @@ -226,6 +368,8 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, status |= USB_PORT_STAT_RESET; if (temp & PORT_POWER) status |= USB_PORT_STAT_POWER; + if (xhci->port_c_suspend[wIndex >> 5] & (1 << (wIndex & 31))) + status |= 1 << USB_PORT_FEAT_C_SUSPEND; xhci_dbg(xhci, "Get port status returned 0x%x\n", status); put_unaligned(cpu_to_le32(status), (__le32 *) buf); break; @@ -238,6 +382,42 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = xhci_readl(xhci, addr); temp = xhci_port_state_to_neutral(temp); switch (wValue) { + case USB_PORT_FEAT_SUSPEND: + temp = xhci_readl(xhci, addr); + /* In spec software should not attempt to suspend + * a port unless the port reports that it is in the + * enabled (PED = ‘1’,PLS < ‘3’) state. + */ + if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) + || (temp & PORT_PLS_MASK) >= XDEV_U3) { + xhci_warn(xhci, "USB core suspending device " + "not in U0/U1/U2.\n"); + goto error; + } + + slot_id = xhci_find_slot_id_by_port(xhci, wIndex + 1); + if (!slot_id) { + xhci_warn(xhci, "slot_id is zero\n"); + goto error; + } + /* unlock to execute stop endpoint commands */ + spin_unlock_irqrestore(&xhci->lock, flags); + xhci_stop_device(xhci, slot_id, 1); + spin_lock_irqsave(&xhci->lock, flags); + + temp = xhci_port_state_to_neutral(temp); + temp &= ~PORT_PLS_MASK; + temp |= PORT_LINK_STROBE | XDEV_U3; + xhci_writel(xhci, temp, addr); + + spin_unlock_irqrestore(&xhci->lock, flags); + msleep(10); /* wait device to enter */ + spin_lock_irqsave(&xhci->lock, flags); + + temp = xhci_readl(xhci, addr); + xhci->suspended_ports[wIndex >> 5] |= + 1 << (wIndex & (31)); + break; case USB_PORT_FEAT_POWER: /* * Turn on ports, even if there isn't per-port switching. @@ -271,6 +451,52 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = xhci_readl(xhci, addr); temp = xhci_port_state_to_neutral(temp); switch (wValue) { + case USB_PORT_FEAT_SUSPEND: + temp = xhci_readl(xhci, addr); + xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n"); + xhci_dbg(xhci, "PORTSC %04x\n", temp); + if (temp & PORT_RESET) + goto error; + if (temp & XDEV_U3) { + if ((temp & PORT_PE) == 0) + goto error; + if (DEV_SUPERSPEED(temp)) { + temp = xhci_port_state_to_neutral(temp); + temp &= ~PORT_PLS_MASK; + temp |= PORT_LINK_STROBE | XDEV_U0; + xhci_writel(xhci, temp, addr); + xhci_readl(xhci, addr); + } else { + temp = xhci_port_state_to_neutral(temp); + temp &= ~PORT_PLS_MASK; + temp |= PORT_LINK_STROBE | XDEV_RESUME; + xhci_writel(xhci, temp, addr); + + spin_unlock_irqrestore(&xhci->lock, + flags); + msleep(20); + spin_lock_irqsave(&xhci->lock, flags); + + temp = xhci_readl(xhci, addr); + temp = xhci_port_state_to_neutral(temp); + temp &= ~PORT_PLS_MASK; + temp |= PORT_LINK_STROBE | XDEV_U0; + xhci_writel(xhci, temp, addr); + } + xhci->port_c_suspend[wIndex >> 5] |= + 1 << (wIndex & 31); + } + + slot_id = xhci_find_slot_id_by_port(xhci, wIndex + 1); + if (!slot_id) { + xhci_dbg(xhci, "slot_id is zero\n"); + goto error; + } + xhci_ring_device(xhci, slot_id); + break; + case USB_PORT_FEAT_C_SUSPEND: + xhci->port_c_suspend[wIndex >> 5] &= + ~(1 << (wIndex & 31)); case USB_PORT_FEAT_C_RESET: case USB_PORT_FEAT_C_CONNECTION: case USB_PORT_FEAT_C_OVER_CURRENT: @@ -306,6 +532,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf) { unsigned long flags; u32 temp, status; + u32 mask; int i, retval; struct xhci_hcd *xhci = hcd_to_xhci(hcd); int ports; @@ -318,13 +545,18 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf) memset(buf, 0, retval); status = 0; + mask = PORT_CSC | PORT_PEC | PORT_OCC; + spin_lock_irqsave(&xhci->lock, flags); /* For each port, did anything change? If so, set that bit in buf. */ for (i = 0; i < ports; i++) { addr = &xhci->op_regs->port_status_base + NUM_PORT_REGS*i; temp = xhci_readl(xhci, addr); - if (temp & (PORT_CSC | PORT_PEC | PORT_OCC)) { + if ((temp & mask) != 0 || + (xhci->port_c_suspend[i >> 5] & 1 << (i & 31)) || + (xhci->resume_done[i] && time_after_eq( + jiffies, xhci->resume_done[i]))) { buf[(i + 1) / 8] |= 1 << (i + 1) % 8; status = 1; } @@ -332,3 +564,182 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf) spin_unlock_irqrestore(&xhci->lock, flags); return status ? retval : 0; } + +#ifdef CONFIG_PM + +int xhci_bus_suspend(struct usb_hcd *hcd) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + int port; + unsigned long flags; + + xhci_dbg(xhci, "suspend root hub\n"); + + spin_lock_irqsave(&xhci->lock, flags); + + if (hcd->self.root_hub->do_remote_wakeup) { + port = HCS_MAX_PORTS(xhci->hcs_params1); + while (port--) { + if (xhci->resume_done[port] != 0) { + spin_unlock_irqrestore(&xhci->lock, flags); + xhci_dbg(xhci, "suspend failed because " + "port %d is resuming\n", + port + 1); + return -EBUSY; + } + } + } + + port = HCS_MAX_PORTS(xhci->hcs_params1); + xhci->bus_suspended = 0; + while (port--) { + /* suspend the port if the port is not suspended */ + u32 __iomem *addr; + u32 t1, t2; + int slot_id; + + addr = &xhci->op_regs->port_status_base + + NUM_PORT_REGS * (port & 0xff); + t1 = xhci_readl(xhci, addr); + t2 = xhci_port_state_to_neutral(t1); + + if ((t1 & PORT_PE) && !(t1 & PORT_PLS_MASK)) { + xhci_dbg(xhci, "port %d not suspended\n", port); + slot_id = xhci_find_slot_id_by_port(xhci, port + 1); + if (slot_id) { + spin_unlock_irqrestore(&xhci->lock, flags); + xhci_stop_device(xhci, slot_id, 1); + spin_lock_irqsave(&xhci->lock, flags); + } + t2 &= ~PORT_PLS_MASK; + t2 |= PORT_LINK_STROBE | XDEV_U3; + set_bit(port, &xhci->bus_suspended); + } + if (hcd->self.root_hub->do_remote_wakeup) { + if (t1 & PORT_CONNECT) { + t2 |= PORT_WKOC_E | PORT_WKDISC_E; + t2 &= ~PORT_WKCONN_E; + } else { + t2 |= PORT_WKOC_E | PORT_WKCONN_E; + t2 &= ~PORT_WKDISC_E; + } + } else + t2 &= ~PORT_WAKE_BITS; + + t1 = xhci_port_state_to_neutral(t1); + if (t1 != t2) + xhci_writel(xhci, t2, addr); + + if (DEV_HIGHSPEED(t1)) { + /* enable remote wake up for USB 2.0 */ + u32 __iomem *addr; + u32 tmp; + + addr = &xhci->op_regs->port_power_base + + NUM_PORT_REGS * (port & 0xff); + tmp = xhci_readl(xhci, addr); + tmp |= PORT_RWE; + xhci_writel(xhci, tmp, addr); + } + } + hcd->state = HC_STATE_SUSPENDED; + xhci->next_statechange = jiffies + msecs_to_jiffies(10); + spin_unlock_irqrestore(&xhci->lock, flags); + return 0; +} + +int xhci_bus_resume(struct usb_hcd *hcd) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + int port; + u32 temp; + unsigned long flags; + + xhci_dbg(xhci, "resume root hub\n"); + + if (time_before(jiffies, xhci->next_statechange)) + msleep(5); + + spin_lock_irqsave(&xhci->lock, flags); + if (!HCD_HW_ACCESSIBLE(hcd)) { + spin_unlock_irqrestore(&xhci->lock, flags); + return -ESHUTDOWN; + } + + /* delay the irqs */ + temp = xhci_readl(xhci, &xhci->op_regs->command); + temp &= ~CMD_EIE; + xhci_writel(xhci, temp, &xhci->op_regs->command); + + port = HCS_MAX_PORTS(xhci->hcs_params1); + while (port--) { + /* Check whether need resume ports. If needed + resume port and disable remote wakeup */ + u32 __iomem *addr; + u32 temp; + int slot_id; + + addr = &xhci->op_regs->port_status_base + + NUM_PORT_REGS * (port & 0xff); + temp = xhci_readl(xhci, addr); + if (DEV_SUPERSPEED(temp)) + temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS); + else + temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS); + if (test_bit(port, &xhci->bus_suspended) && + (temp & PORT_PLS_MASK)) { + if (DEV_SUPERSPEED(temp)) { + temp = xhci_port_state_to_neutral(temp); + temp &= ~PORT_PLS_MASK; + temp |= PORT_LINK_STROBE | XDEV_U0; + xhci_writel(xhci, temp, addr); + } else { + temp = xhci_port_state_to_neutral(temp); + temp &= ~PORT_PLS_MASK; + temp |= PORT_LINK_STROBE | XDEV_RESUME; + xhci_writel(xhci, temp, addr); + + spin_unlock_irqrestore(&xhci->lock, flags); + msleep(20); + spin_lock_irqsave(&xhci->lock, flags); + + temp = xhci_readl(xhci, addr); + temp = xhci_port_state_to_neutral(temp); + temp &= ~PORT_PLS_MASK; + temp |= PORT_LINK_STROBE | XDEV_U0; + xhci_writel(xhci, temp, addr); + } + slot_id = xhci_find_slot_id_by_port(xhci, port + 1); + if (slot_id) + xhci_ring_device(xhci, slot_id); + } else + xhci_writel(xhci, temp, addr); + + if (DEV_HIGHSPEED(temp)) { + /* disable remote wake up for USB 2.0 */ + u32 __iomem *addr; + u32 tmp; + + addr = &xhci->op_regs->port_power_base + + NUM_PORT_REGS * (port & 0xff); + tmp = xhci_readl(xhci, addr); + tmp &= ~PORT_RWE; + xhci_writel(xhci, tmp, addr); + } + } + + (void) xhci_readl(xhci, &xhci->op_regs->command); + + xhci->next_statechange = jiffies + msecs_to_jiffies(5); + hcd->state = HC_STATE_RUNNING; + /* re-enable irqs */ + temp = xhci_readl(xhci, &xhci->op_regs->command); + temp |= CMD_EIE; + xhci_writel(xhci, temp, &xhci->op_regs->command); + temp = xhci_readl(xhci, &xhci->op_regs->command); + + spin_unlock_irqrestore(&xhci->lock, flags); + return 0; +} + +#endif /* CONFIG_PM */ diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 4e51343ddff..202770676da 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -778,6 +778,7 @@ int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, init_completion(&dev->cmd_completion); INIT_LIST_HEAD(&dev->cmd_list); + dev->udev = udev; /* Point to output device context in dcbaa. */ xhci->dcbaa->dev_context_ptrs[slot_id] = dev->out_ctx->dma; @@ -866,6 +867,7 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud top_dev = top_dev->parent) /* Found device below root hub */; slot_ctx->dev_info2 |= (u32) ROOT_HUB_PORT(top_dev->portnum); + dev->port = top_dev->portnum; xhci_dbg(xhci, "Set root hub portnum to %d\n", top_dev->portnum); /* Is this a LS/FS device under a HS hub? */ @@ -1443,6 +1445,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) scratchpad_free(xhci); xhci->page_size = 0; xhci->page_shift = 0; + xhci->bus_suspended = 0; } static int xhci_test_trb_in_td(struct xhci_hcd *xhci, @@ -1801,6 +1804,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) init_completion(&xhci->addr_dev); for (i = 0; i < MAX_HC_SLOTS; ++i) xhci->devs[i] = NULL; + for (i = 0; i < MAX_HC_PORTS; ++i) + xhci->resume_done[i] = 0; if (scratchpad_alloc(xhci, flags)) goto fail; diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index f7efe025bed..bb668a894ab 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -116,6 +116,30 @@ static int xhci_pci_setup(struct usb_hcd *hcd) return xhci_pci_reinit(xhci, pdev); } +#ifdef CONFIG_PM +static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + int retval = 0; + + if (hcd->state != HC_STATE_SUSPENDED) + return -EINVAL; + + retval = xhci_suspend(xhci); + + return retval; +} + +static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + int retval = 0; + + retval = xhci_resume(xhci, hibernated); + return retval; +} +#endif /* CONFIG_PM */ + static const struct hc_driver xhci_pci_hc_driver = { .description = hcd_name, .product_desc = "xHCI Host Controller", @@ -132,7 +156,10 @@ static const struct hc_driver xhci_pci_hc_driver = { */ .reset = xhci_pci_setup, .start = xhci_run, - /* suspend and resume implemented later */ +#ifdef CONFIG_PM + .pci_suspend = xhci_pci_suspend, + .pci_resume = xhci_pci_resume, +#endif .stop = xhci_stop, .shutdown = xhci_shutdown, @@ -152,7 +179,7 @@ static const struct hc_driver xhci_pci_hc_driver = { .reset_bandwidth = xhci_reset_bandwidth, .address_device = xhci_address_device, .update_hub_device = xhci_update_hub_device, - .reset_device = xhci_reset_device, + .reset_device = xhci_discover_or_reset_device, /* * scheduling support @@ -162,6 +189,8 @@ static const struct hc_driver xhci_pci_hc_driver = { /* Root hub support */ .hub_control = xhci_hub_control, .hub_status_data = xhci_hub_status_data, + .bus_suspend = xhci_bus_suspend, + .bus_resume = xhci_bus_resume, }; /*-------------------------------------------------------------------------*/ @@ -186,6 +215,11 @@ static struct pci_driver xhci_pci_driver = { /* suspend and resume implemented later */ .shutdown = usb_hcd_pci_shutdown, +#ifdef CONFIG_PM_SLEEP + .driver = { + .pm = &usb_hcd_pci_pm_ops + }, +#endif }; int xhci_register_pci(void) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 48e60d166ff..9f3115e729b 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -68,6 +68,10 @@ #include <linux/slab.h> #include "xhci.h" +static int handle_cmd_in_cmd_wait_list(struct xhci_hcd *xhci, + struct xhci_virt_device *virt_dev, + struct xhci_event_cmd *event); + /* * Returns zero if the TRB isn't in this segment, otherwise it returns the DMA * address of the TRB. @@ -313,7 +317,7 @@ void xhci_ring_cmd_db(struct xhci_hcd *xhci) xhci_readl(xhci, &xhci->dba->doorbell[0]); } -static void ring_ep_doorbell(struct xhci_hcd *xhci, +void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id, unsigned int ep_index, unsigned int stream_id) @@ -353,7 +357,7 @@ static void ring_doorbell_for_active_rings(struct xhci_hcd *xhci, /* A ring has pending URBs if its TD list is not empty */ if (!(ep->ep_state & EP_HAS_STREAMS)) { if (!(list_empty(&ep->ring->td_list))) - ring_ep_doorbell(xhci, slot_id, ep_index, 0); + xhci_ring_ep_doorbell(xhci, slot_id, ep_index, 0); return; } @@ -361,7 +365,8 @@ static void ring_doorbell_for_active_rings(struct xhci_hcd *xhci, stream_id++) { struct xhci_stream_info *stream_info = ep->stream_info; if (!list_empty(&stream_info->stream_rings[stream_id]->td_list)) - ring_ep_doorbell(xhci, slot_id, ep_index, stream_id); + xhci_ring_ep_doorbell(xhci, slot_id, ep_index, + stream_id); } } @@ -626,10 +631,11 @@ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci, * bit cleared) so that the HW will skip over them. */ static void handle_stopped_endpoint(struct xhci_hcd *xhci, - union xhci_trb *trb) + union xhci_trb *trb, struct xhci_event_cmd *event) { unsigned int slot_id; unsigned int ep_index; + struct xhci_virt_device *virt_dev; struct xhci_ring *ep_ring; struct xhci_virt_ep *ep; struct list_head *entry; @@ -638,6 +644,21 @@ static void handle_stopped_endpoint(struct xhci_hcd *xhci, struct xhci_dequeue_state deq_state; + if (unlikely(TRB_TO_SUSPEND_PORT( + xhci->cmd_ring->dequeue->generic.field[3]))) { + slot_id = TRB_TO_SLOT_ID( + xhci->cmd_ring->dequeue->generic.field[3]); + virt_dev = xhci->devs[slot_id]; + if (virt_dev) + handle_cmd_in_cmd_wait_list(xhci, virt_dev, + event); + else + xhci_warn(xhci, "Stop endpoint command " + "completion for disabled slot %u\n", + slot_id); + return; + } + memset(&deq_state, 0, sizeof(deq_state)); slot_id = TRB_TO_SLOT_ID(trb->generic.field[3]); ep_index = TRB_TO_EP_INDEX(trb->generic.field[3]); @@ -1091,7 +1112,7 @@ bandwidth_change: complete(&xhci->addr_dev); break; case TRB_TYPE(TRB_STOP_RING): - handle_stopped_endpoint(xhci, xhci->cmd_ring->dequeue); + handle_stopped_endpoint(xhci, xhci->cmd_ring->dequeue, event); break; case TRB_TYPE(TRB_SET_DEQ): handle_set_deq_completion(xhci, event, xhci->cmd_ring->dequeue); @@ -1144,17 +1165,72 @@ static void handle_vendor_event(struct xhci_hcd *xhci, static void handle_port_status(struct xhci_hcd *xhci, union xhci_trb *event) { + struct usb_hcd *hcd = xhci_to_hcd(xhci); u32 port_id; + u32 temp, temp1; + u32 __iomem *addr; + int ports; + int slot_id; /* Port status change events always have a successful completion code */ if (GET_COMP_CODE(event->generic.field[2]) != COMP_SUCCESS) { xhci_warn(xhci, "WARN: xHC returned failed port status event\n"); xhci->error_bitmask |= 1 << 8; } - /* FIXME: core doesn't care about all port link state changes yet */ port_id = GET_PORT_ID(event->generic.field[0]); xhci_dbg(xhci, "Port Status Change Event for port %d\n", port_id); + ports = HCS_MAX_PORTS(xhci->hcs_params1); + if ((port_id <= 0) || (port_id > ports)) { + xhci_warn(xhci, "Invalid port id %d\n", port_id); + goto cleanup; + } + + addr = &xhci->op_regs->port_status_base + NUM_PORT_REGS * (port_id - 1); + temp = xhci_readl(xhci, addr); + if ((temp & PORT_CONNECT) && (hcd->state == HC_STATE_SUSPENDED)) { + xhci_dbg(xhci, "resume root hub\n"); + usb_hcd_resume_root_hub(hcd); + } + + if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_RESUME) { + xhci_dbg(xhci, "port resume event for port %d\n", port_id); + + temp1 = xhci_readl(xhci, &xhci->op_regs->command); + if (!(temp1 & CMD_RUN)) { + xhci_warn(xhci, "xHC is not running.\n"); + goto cleanup; + } + + if (DEV_SUPERSPEED(temp)) { + xhci_dbg(xhci, "resume SS port %d\n", port_id); + temp = xhci_port_state_to_neutral(temp); + temp &= ~PORT_PLS_MASK; + temp |= PORT_LINK_STROBE | XDEV_U0; + xhci_writel(xhci, temp, addr); + slot_id = xhci_find_slot_id_by_port(xhci, port_id); + if (!slot_id) { + xhci_dbg(xhci, "slot_id is zero\n"); + goto cleanup; + } + xhci_ring_device(xhci, slot_id); + xhci_dbg(xhci, "resume SS port %d finished\n", port_id); + /* Clear PORT_PLC */ + temp = xhci_readl(xhci, addr); + temp = xhci_port_state_to_neutral(temp); + temp |= PORT_PLC; + xhci_writel(xhci, temp, addr); + } else { + xhci_dbg(xhci, "resume HS port %d\n", port_id); + xhci->resume_done[port_id - 1] = jiffies + + msecs_to_jiffies(20); + mod_timer(&hcd->rh_timer, + xhci->resume_done[port_id - 1]); + /* Do the rest in GetPortStatus */ + } + } + +cleanup: /* Update event ring dequeue pointer before dropping the lock */ inc_deq(xhci, xhci->event_ring, true); @@ -2347,7 +2423,7 @@ static void giveback_first_trb(struct xhci_hcd *xhci, int slot_id, */ wmb(); start_trb->field[3] |= start_cycle; - ring_ep_doorbell(xhci, slot_id, ep_index, stream_id); + xhci_ring_ep_doorbell(xhci, slot_id, ep_index, stream_id); } /* @@ -2931,7 +3007,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, wmb(); start_trb->field[3] |= start_cycle; - ring_ep_doorbell(xhci, slot_id, ep_index, urb->stream_id); + xhci_ring_ep_doorbell(xhci, slot_id, ep_index, urb->stream_id); return 0; } @@ -3108,15 +3184,20 @@ int xhci_queue_evaluate_context(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, false); } +/* + * Suspend is set to indicate "Stop Endpoint Command" is being issued to stop + * activity on an endpoint that is about to be suspended. + */ int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, int slot_id, - unsigned int ep_index) + unsigned int ep_index, int suspend) { u32 trb_slot_id = SLOT_ID_FOR_TRB(slot_id); u32 trb_ep_index = EP_ID_FOR_TRB(ep_index); u32 type = TRB_TYPE(TRB_STOP_RING); + u32 trb_suspend = SUSPEND_PORT_FOR_TRB(suspend); return queue_command(xhci, 0, 0, 0, - trb_slot_id | trb_ep_index | type, false); + trb_slot_id | trb_ep_index | type | trb_suspend, false); } /* Set Transfer Ring Dequeue Pointer command. diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index d5c550ea3e6..5d7d4e951ea 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -551,6 +551,218 @@ void xhci_shutdown(struct usb_hcd *hcd) xhci_readl(xhci, &xhci->op_regs->status)); } +#ifdef CONFIG_PM +static void xhci_save_registers(struct xhci_hcd *xhci) +{ + xhci->s3.command = xhci_readl(xhci, &xhci->op_regs->command); + xhci->s3.dev_nt = xhci_readl(xhci, &xhci->op_regs->dev_notification); + xhci->s3.dcbaa_ptr = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); + xhci->s3.config_reg = xhci_readl(xhci, &xhci->op_regs->config_reg); + xhci->s3.irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); + xhci->s3.irq_control = xhci_readl(xhci, &xhci->ir_set->irq_control); + xhci->s3.erst_size = xhci_readl(xhci, &xhci->ir_set->erst_size); + xhci->s3.erst_base = xhci_read_64(xhci, &xhci->ir_set->erst_base); + xhci->s3.erst_dequeue = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); +} + +static void xhci_restore_registers(struct xhci_hcd *xhci) +{ + xhci_writel(xhci, xhci->s3.command, &xhci->op_regs->command); + xhci_writel(xhci, xhci->s3.dev_nt, &xhci->op_regs->dev_notification); + xhci_write_64(xhci, xhci->s3.dcbaa_ptr, &xhci->op_regs->dcbaa_ptr); + xhci_writel(xhci, xhci->s3.config_reg, &xhci->op_regs->config_reg); + xhci_writel(xhci, xhci->s3.irq_pending, &xhci->ir_set->irq_pending); + xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control); + xhci_writel(xhci, xhci->s3.erst_size, &xhci->ir_set->erst_size); + xhci_write_64(xhci, xhci->s3.erst_base, &xhci->ir_set->erst_base); +} + +/* + * Stop HC (not bus-specific) + * + * This is called when the machine transition into S3/S4 mode. + * + */ +int xhci_suspend(struct xhci_hcd *xhci) +{ + int rc = 0; + struct usb_hcd *hcd = xhci_to_hcd(xhci); + u32 command; + + spin_lock_irq(&xhci->lock); + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + /* step 1: stop endpoint */ + /* skipped assuming that port suspend has done */ + + /* step 2: clear Run/Stop bit */ + command = xhci_readl(xhci, &xhci->op_regs->command); + command &= ~CMD_RUN; + xhci_writel(xhci, command, &xhci->op_regs->command); + if (handshake(xhci, &xhci->op_regs->status, + STS_HALT, STS_HALT, 100*100)) { + xhci_warn(xhci, "WARN: xHC CMD_RUN timeout\n"); + spin_unlock_irq(&xhci->lock); + return -ETIMEDOUT; + } + + /* step 3: save registers */ + xhci_save_registers(xhci); + + /* step 4: set CSS flag */ + command = xhci_readl(xhci, &xhci->op_regs->command); + command |= CMD_CSS; + xhci_writel(xhci, command, &xhci->op_regs->command); + if (handshake(xhci, &xhci->op_regs->status, STS_SAVE, 0, 10*100)) { + xhci_warn(xhci, "WARN: xHC CMD_CSS timeout\n"); + spin_unlock_irq(&xhci->lock); + return -ETIMEDOUT; + } + /* step 5: remove core well power */ + xhci_cleanup_msix(xhci); + spin_unlock_irq(&xhci->lock); + + return rc; +} + +/* + * start xHC (not bus-specific) + * + * This is called when the machine transition from S3/S4 mode. + * + */ +int xhci_resume(struct xhci_hcd *xhci, bool hibernated) +{ + u32 command, temp = 0; + struct usb_hcd *hcd = xhci_to_hcd(xhci); + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + u64 val_64; + int old_state, retval; + + old_state = hcd->state; + if (time_before(jiffies, xhci->next_statechange)) + msleep(100); + + spin_lock_irq(&xhci->lock); + + if (!hibernated) { + /* step 1: restore register */ + xhci_restore_registers(xhci); + /* step 2: initialize command ring buffer */ + val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); + val_64 = (val_64 & (u64) CMD_RING_RSVD_BITS) | + (xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, + xhci->cmd_ring->dequeue) & + (u64) ~CMD_RING_RSVD_BITS) | + xhci->cmd_ring->cycle_state; + xhci_dbg(xhci, "// Setting command ring address to 0x%llx\n", + (long unsigned long) val_64); + xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring); + /* step 3: restore state and start state*/ + /* step 3: set CRS flag */ + command = xhci_readl(xhci, &xhci->op_regs->command); + command |= CMD_CRS; + xhci_writel(xhci, command, &xhci->op_regs->command); + if (handshake(xhci, &xhci->op_regs->status, + STS_RESTORE, 0, 10*100)) { + xhci_dbg(xhci, "WARN: xHC CMD_CSS timeout\n"); + spin_unlock_irq(&xhci->lock); + return -ETIMEDOUT; + } + temp = xhci_readl(xhci, &xhci->op_regs->status); + } + + /* If restore operation fails, re-initialize the HC during resume */ + if ((temp & STS_SRE) || hibernated) { + usb_root_hub_lost_power(hcd->self.root_hub); + + xhci_dbg(xhci, "Stop HCD\n"); + xhci_halt(xhci); + xhci_reset(xhci); + if (hibernated) + xhci_cleanup_msix(xhci); + spin_unlock_irq(&xhci->lock); + +#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING + /* Tell the event ring poll function not to reschedule */ + xhci->zombie = 1; + del_timer_sync(&xhci->event_ring_timer); +#endif + + xhci_dbg(xhci, "// Disabling event ring interrupts\n"); + temp = xhci_readl(xhci, &xhci->op_regs->status); + xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status); + temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); + xhci_writel(xhci, ER_IRQ_DISABLE(temp), + &xhci->ir_set->irq_pending); + xhci_print_ir_set(xhci, xhci->ir_set, 0); + + xhci_dbg(xhci, "cleaning up memory\n"); + xhci_mem_cleanup(xhci); + xhci_dbg(xhci, "xhci_stop completed - status = %x\n", + xhci_readl(xhci, &xhci->op_regs->status)); + + xhci_dbg(xhci, "Initialize the HCD\n"); + retval = xhci_init(hcd); + if (retval) + return retval; + + xhci_dbg(xhci, "Start the HCD\n"); + retval = xhci_run(hcd); + if (!retval) + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + hcd->state = HC_STATE_SUSPENDED; + return retval; + } + + /* Re-setup MSI-X */ + if (hcd->irq) + free_irq(hcd->irq, hcd); + hcd->irq = -1; + + retval = xhci_setup_msix(xhci); + if (retval) + /* fall back to msi*/ + retval = xhci_setup_msi(xhci); + + if (retval) { + /* fall back to legacy interrupt*/ + retval = request_irq(pdev->irq, &usb_hcd_irq, IRQF_SHARED, + hcd->irq_descr, hcd); + if (retval) { + xhci_err(xhci, "request interrupt %d failed\n", + pdev->irq); + return retval; + } + hcd->irq = pdev->irq; + } + + /* step 4: set Run/Stop bit */ + command = xhci_readl(xhci, &xhci->op_regs->command); + command |= CMD_RUN; + xhci_writel(xhci, command, &xhci->op_regs->command); + handshake(xhci, &xhci->op_regs->status, STS_HALT, + 0, 250 * 1000); + + /* step 5: walk topology and initialize portsc, + * portpmsc and portli + */ + /* this is done in bus_resume */ + + /* step 6: restart each of the previously + * Running endpoints by ringing their doorbells + */ + + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + if (!hibernated) + hcd->state = old_state; + else + hcd->state = HC_STATE_SUSPENDED; + + spin_unlock_irq(&xhci->lock); + return 0; +} +#endif /* CONFIG_PM */ + /*-------------------------------------------------------------------------*/ /** @@ -607,7 +819,11 @@ unsigned int xhci_last_valid_endpoint(u32 added_ctxs) * returns 0 this is a root hub; returns -EINVAL for NULL pointers. */ int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev, - struct usb_host_endpoint *ep, int check_ep, const char *func) { + struct usb_host_endpoint *ep, int check_ep, bool check_virt_dev, + const char *func) { + struct xhci_hcd *xhci; + struct xhci_virt_device *virt_dev; + if (!hcd || (check_ep && !ep) || !udev) { printk(KERN_DEBUG "xHCI %s called with invalid args\n", func); @@ -618,11 +834,24 @@ int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev, func); return 0; } - if (!udev->slot_id) { - printk(KERN_DEBUG "xHCI %s called with unaddressed device\n", - func); - return -EINVAL; + + if (check_virt_dev) { + xhci = hcd_to_xhci(hcd); + if (!udev->slot_id || !xhci->devs + || !xhci->devs[udev->slot_id]) { + printk(KERN_DEBUG "xHCI %s called with unaddressed " + "device\n", func); + return -EINVAL; + } + + virt_dev = xhci->devs[udev->slot_id]; + if (virt_dev->udev != udev) { + printk(KERN_DEBUG "xHCI %s called with udev and " + "virt_dev does not match\n", func); + return -EINVAL; + } } + return 1; } @@ -704,18 +933,13 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags) struct urb_priv *urb_priv; int size, i; - if (!urb || xhci_check_args(hcd, urb->dev, urb->ep, true, __func__) <= 0) + if (!urb || xhci_check_args(hcd, urb->dev, urb->ep, + true, true, __func__) <= 0) return -EINVAL; slot_id = urb->dev->slot_id; ep_index = xhci_get_endpoint_index(&urb->ep->desc); - if (!xhci->devs || !xhci->devs[slot_id]) { - if (!in_interrupt()) - dev_warn(&urb->dev->dev, "WARN: urb submitted for dev with no Slot ID\n"); - ret = -EINVAL; - goto exit; - } if (!HCD_HW_ACCESSIBLE(hcd)) { if (!in_interrupt()) xhci_dbg(xhci, "urb submitted during PCI suspend\n"); @@ -956,7 +1180,7 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) ep->stop_cmd_timer.expires = jiffies + XHCI_STOP_EP_CMD_TIMEOUT * HZ; add_timer(&ep->stop_cmd_timer); - xhci_queue_stop_endpoint(xhci, urb->dev->slot_id, ep_index); + xhci_queue_stop_endpoint(xhci, urb->dev->slot_id, ep_index, 0); xhci_ring_cmd_db(xhci); } done: @@ -991,7 +1215,7 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, u32 new_add_flags, new_drop_flags, new_slot_info; int ret; - ret = xhci_check_args(hcd, udev, ep, 1, __func__); + ret = xhci_check_args(hcd, udev, ep, 1, true, __func__); if (ret <= 0) return ret; xhci = hcd_to_xhci(hcd); @@ -1004,12 +1228,6 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, return 0; } - if (!xhci->devs || !xhci->devs[udev->slot_id]) { - xhci_warn(xhci, "xHCI %s called with unaddressed device\n", - __func__); - return -EINVAL; - } - in_ctx = xhci->devs[udev->slot_id]->in_ctx; out_ctx = xhci->devs[udev->slot_id]->out_ctx; ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx); @@ -1078,7 +1296,7 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, u32 new_add_flags, new_drop_flags, new_slot_info; int ret = 0; - ret = xhci_check_args(hcd, udev, ep, 1, __func__); + ret = xhci_check_args(hcd, udev, ep, 1, true, __func__); if (ret <= 0) { /* So we won't queue a reset ep command for a root hub */ ep->hcpriv = NULL; @@ -1098,12 +1316,6 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, return 0; } - if (!xhci->devs || !xhci->devs[udev->slot_id]) { - xhci_warn(xhci, "xHCI %s called with unaddressed device\n", - __func__); - return -EINVAL; - } - in_ctx = xhci->devs[udev->slot_id]->in_ctx; out_ctx = xhci->devs[udev->slot_id]->out_ctx; ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx); @@ -1346,16 +1558,11 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev) struct xhci_input_control_ctx *ctrl_ctx; struct xhci_slot_ctx *slot_ctx; - ret = xhci_check_args(hcd, udev, NULL, 0, __func__); + ret = xhci_check_args(hcd, udev, NULL, 0, true, __func__); if (ret <= 0) return ret; xhci = hcd_to_xhci(hcd); - if (!udev->slot_id || !xhci->devs || !xhci->devs[udev->slot_id]) { - xhci_warn(xhci, "xHCI %s called with unaddressed device\n", - __func__); - return -EINVAL; - } xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev); virt_dev = xhci->devs[udev->slot_id]; @@ -1405,16 +1612,11 @@ void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev) struct xhci_virt_device *virt_dev; int i, ret; - ret = xhci_check_args(hcd, udev, NULL, 0, __func__); + ret = xhci_check_args(hcd, udev, NULL, 0, true, __func__); if (ret <= 0) return; xhci = hcd_to_xhci(hcd); - if (!xhci->devs || !xhci->devs[udev->slot_id]) { - xhci_warn(xhci, "xHCI %s called with unaddressed device\n", - __func__); - return; - } xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev); virt_dev = xhci->devs[udev->slot_id]; /* Free any rings allocated for added endpoints */ @@ -1575,7 +1777,7 @@ static int xhci_check_streams_endpoint(struct xhci_hcd *xhci, if (!ep) return -EINVAL; - ret = xhci_check_args(xhci_to_hcd(xhci), udev, ep, 1, __func__); + ret = xhci_check_args(xhci_to_hcd(xhci), udev, ep, 1, true, __func__); if (ret <= 0) return -EINVAL; if (ep->ss_ep_comp.bmAttributes == 0) { @@ -1953,8 +2155,13 @@ int xhci_free_streams(struct usb_hcd *hcd, struct usb_device *udev, * Wait for the Reset Device command to finish. Remove all structures * associated with the endpoints that were disabled. Clear the input device * structure? Cache the rings? Reset the control endpoint 0 max packet size? + * + * If the virt_dev to be reset does not exist or does not match the udev, + * it means the device is lost, possibly due to the xHC restore error and + * re-initialization during S3/S4. In this case, call xhci_alloc_dev() to + * re-allocate the device. */ -int xhci_reset_device(struct usb_hcd *hcd, struct usb_device *udev) +int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) { int ret, i; unsigned long flags; @@ -1965,16 +2172,35 @@ int xhci_reset_device(struct usb_hcd *hcd, struct usb_device *udev) int timeleft; int last_freed_endpoint; - ret = xhci_check_args(hcd, udev, NULL, 0, __func__); + ret = xhci_check_args(hcd, udev, NULL, 0, false, __func__); if (ret <= 0) return ret; xhci = hcd_to_xhci(hcd); slot_id = udev->slot_id; virt_dev = xhci->devs[slot_id]; if (!virt_dev) { - xhci_dbg(xhci, "%s called with invalid slot ID %u\n", - __func__, slot_id); - return -EINVAL; + xhci_dbg(xhci, "The device to be reset with slot ID %u does " + "not exist. Re-allocate the device\n", slot_id); + ret = xhci_alloc_dev(hcd, udev); + if (ret == 1) + return 0; + else + return -EINVAL; + } + + if (virt_dev->udev != udev) { + /* If the virt_dev and the udev does not match, this virt_dev + * may belong to another udev. + * Re-allocate the device. + */ + xhci_dbg(xhci, "The device to be reset with slot ID %u does " + "not match the udev. Re-allocate the device\n", + slot_id); + ret = xhci_alloc_dev(hcd, udev); + if (ret == 1) + return 0; + else + return -EINVAL; } xhci_dbg(xhci, "Resetting device with slot ID %u\n", slot_id); @@ -2077,13 +2303,13 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) struct xhci_virt_device *virt_dev; unsigned long flags; u32 state; - int i; + int i, ret; - if (udev->slot_id == 0) + ret = xhci_check_args(hcd, udev, NULL, 0, true, __func__); + if (ret <= 0) return; + virt_dev = xhci->devs[udev->slot_id]; - if (!virt_dev) - return; /* Stop any wayward timer functions (which may grab the lock) */ for (i = 0; i < 31; ++i) { @@ -2191,12 +2417,17 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) virt_dev = xhci->devs[udev->slot_id]; - /* If this is a Set Address to an unconfigured device, setup ep 0 */ - if (!udev->config) + slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx); + /* + * If this is the first Set Address since device plug-in or + * virt_device realloaction after a resume with an xHCI power loss, + * then set up the slot context. + */ + if (!slot_ctx->dev_info) xhci_setup_addressable_virt_dev(xhci, udev); + /* Otherwise, update the control endpoint ring enqueue pointer. */ else xhci_copy_ep0_dequeue_into_input_ctx(xhci, udev); - /* Otherwise, assume the core has the device configured how it wants */ xhci_dbg(xhci, "Slot ID %d Input Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2); @@ -2268,15 +2499,15 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) * address given back to us by the HC. */ slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); - udev->devnum = (slot_ctx->dev_state & DEV_ADDR_MASK) + 1; + /* Use kernel assigned address for devices; store xHC assigned + * address locally. */ + virt_dev->address = (slot_ctx->dev_state & DEV_ADDR_MASK) + 1; /* Zero the input context control for later use */ ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx); ctrl_ctx->add_flags = 0; ctrl_ctx->drop_flags = 0; - xhci_dbg(xhci, "Device address = %d\n", udev->devnum); - /* XXX Meh, not sure if anyone else but choose_address uses this. */ - set_bit(udev->devnum, udev->bus->devmap.devicemap); + xhci_dbg(xhci, "Internal device address = %d\n", virt_dev->address); return 0; } diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 34a60d9f056..93d3bf4d213 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -191,7 +191,7 @@ struct xhci_op_regs { /* bits 4:6 are reserved (and should be preserved on writes). */ /* light reset (port status stays unchanged) - reset completed when this is 0 */ #define CMD_LRESET (1 << 7) -/* FIXME: ignoring host controller save/restore state for now. */ +/* host controller save/restore state. */ #define CMD_CSS (1 << 8) #define CMD_CRS (1 << 9) /* Enable Wrap Event - '1' means xHC generates an event when MFINDEX wraps. */ @@ -269,6 +269,10 @@ struct xhci_op_regs { * A read gives the current link PM state of the port, * a write with Link State Write Strobe set sets the link state. */ +#define PORT_PLS_MASK (0xf << 5) +#define XDEV_U0 (0x0 << 5) +#define XDEV_U3 (0x3 << 5) +#define XDEV_RESUME (0xf << 5) /* true: port has power (see HCC_PPC) */ #define PORT_POWER (1 << 9) /* bits 10:13 indicate device speed: @@ -353,6 +357,8 @@ struct xhci_op_regs { #define PORT_U2_TIMEOUT(p) (((p) & 0xff) << 8) /* Bits 24:31 for port testing */ +/* USB2 Protocol PORTSPMSC */ +#define PORT_RWE (1 << 0x3) /** * struct xhci_intr_reg - Interrupt Register Set @@ -510,6 +516,7 @@ struct xhci_slot_ctx { #define MAX_EXIT (0xffff) /* Root hub port number that is needed to access the USB device */ #define ROOT_HUB_PORT(p) (((p) & 0xff) << 16) +#define DEVINFO_TO_ROOT_HUB_PORT(p) (((p) >> 16) & 0xff) /* Maximum number of ports under a hub device */ #define XHCI_MAX_PORTS(p) (((p) & 0xff) << 24) @@ -731,6 +738,7 @@ struct xhci_virt_ep { }; struct xhci_virt_device { + struct usb_device *udev; /* * Commands to the hardware are passed an "input context" that * tells the hardware what to change in its data structures. @@ -745,12 +753,15 @@ struct xhci_virt_device { /* Rings saved to ensure old alt settings can be re-instated */ struct xhci_ring **ring_cache; int num_rings_cached; + /* Store xHC assigned device address */ + int address; #define XHCI_MAX_RINGS_CACHED 31 struct xhci_virt_ep eps[31]; struct completion cmd_completion; /* Status of the last command issued for this device */ u32 cmd_status; struct list_head cmd_list; + u8 port; }; @@ -881,6 +892,10 @@ struct xhci_event_cmd { #define TRB_TO_EP_INDEX(p) ((((p) & (0x1f << 16)) >> 16) - 1) #define EP_ID_FOR_TRB(p) ((((p) + 1) & 0x1f) << 16) +#define SUSPEND_PORT_FOR_TRB(p) (((p) & 1) << 23) +#define TRB_TO_SUSPEND_PORT(p) (((p) & (1 << 23)) >> 23) +#define LAST_EP_INDEX 30 + /* Set TR Dequeue Pointer command TRB fields */ #define TRB_TO_STREAM_ID(p) ((((p) & (0xffff << 16)) >> 16)) #define STREAM_ID_FOR_TRB(p) ((((p)) & 0xffff) << 16) @@ -1115,6 +1130,17 @@ struct urb_priv { #define XHCI_STOP_EP_CMD_TIMEOUT 5 /* XXX: Make these module parameters */ +struct s3_save { + u32 command; + u32 dev_nt; + u64 dcbaa_ptr; + u32 config_reg; + u32 irq_pending; + u32 irq_control; + u32 erst_size; + u64 erst_base; + u64 erst_dequeue; +}; /* There is one ehci_hci structure per controller */ struct xhci_hcd { @@ -1178,6 +1204,12 @@ struct xhci_hcd { #endif /* Host controller watchdog timer structures */ unsigned int xhc_state; + + unsigned long bus_suspended; + unsigned long next_statechange; + + u32 command; + struct s3_save s3; /* Host controller is dying - not responding to commands. "I'm not dead yet!" * * xHC interrupts have been disabled and a watchdog timer will (or has already) @@ -1199,6 +1231,10 @@ struct xhci_hcd { #define XHCI_LINK_TRB_QUIRK (1 << 0) #define XHCI_RESET_EP_QUIRK (1 << 1) #define XHCI_NEC_HOST (1 << 2) + u32 port_c_suspend[8]; /* port suspend change*/ + u32 suspended_ports[8]; /* which ports are + suspended */ + unsigned long resume_done[MAX_HC_PORTS]; }; /* For testing purposes */ @@ -1369,6 +1405,15 @@ int xhci_init(struct usb_hcd *hcd); int xhci_run(struct usb_hcd *hcd); void xhci_stop(struct usb_hcd *hcd); void xhci_shutdown(struct usb_hcd *hcd); + +#ifdef CONFIG_PM +int xhci_suspend(struct xhci_hcd *xhci); +int xhci_resume(struct xhci_hcd *xhci, bool hibernated); +#else +#define xhci_suspend NULL +#define xhci_resume NULL +#endif + int xhci_get_frame(struct usb_hcd *hcd); irqreturn_t xhci_irq(struct usb_hcd *hcd); irqreturn_t xhci_msi_irq(int irq, struct usb_hcd *hcd); @@ -1388,7 +1433,7 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status); int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep); int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep); void xhci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep); -int xhci_reset_device(struct usb_hcd *hcd, struct usb_device *udev); +int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev); int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev); void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev); @@ -1406,7 +1451,7 @@ int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, int xhci_queue_vendor_command(struct xhci_hcd *xhci, u32 field1, u32 field2, u32 field3, u32 field4); int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, int slot_id, - unsigned int ep_index); + unsigned int ep_index, int suspend); int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb, int slot_id, unsigned int ep_index); int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb, @@ -1436,12 +1481,26 @@ void xhci_queue_config_ep_quirk(struct xhci_hcd *xhci, unsigned int slot_id, unsigned int ep_index, struct xhci_dequeue_state *deq_state); void xhci_stop_endpoint_command_watchdog(unsigned long arg); +void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id, + unsigned int ep_index, unsigned int stream_id); /* xHCI roothub code */ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength); int xhci_hub_status_data(struct usb_hcd *hcd, char *buf); +#ifdef CONFIG_PM +int xhci_bus_suspend(struct usb_hcd *hcd); +int xhci_bus_resume(struct usb_hcd *hcd); +#else +#define xhci_bus_suspend NULL +#define xhci_bus_resume NULL +#endif /* CONFIG_PM */ + +u32 xhci_port_state_to_neutral(u32 state); +int xhci_find_slot_id_by_port(struct xhci_hcd *xhci, u16 port); +void xhci_ring_device(struct xhci_hcd *xhci, int slot_id); + /* xHCI contexts */ struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); |