diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-au1xxx.c | 2 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 13 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-fsl.h | 3 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 19 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 7 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-mxc.c | 25 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-omap.c | 6 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-pci.c | 35 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-xilinx-of.c | 1 | ||||
| -rw-r--r-- | drivers/usb/host/fsl-mph-dr-of.c | 11 | ||||
| -rw-r--r-- | drivers/usb/host/sl811-hcd.c | 1 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-dbg.c | 9 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 10 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 131 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.c | 74 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.h | 18 |
17 files changed, 202 insertions, 165 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 24046c0f5878..0e6afa260ed8 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -151,6 +151,8 @@ config USB_EHCI_MSM Qualcomm chipsets. Root Hub has inbuilt TT. This driver depends on OTG driver for PHY initialization, clock management, powering up VBUS, and power management. + This driver is not supported on boards like trout which + has an external PHY. config USB_EHCI_HCD_PPC_OF bool "EHCI support for PPC USB controller on OF platform bus" diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c index 2baf8a849086..a869e3c103d3 100644 --- a/drivers/usb/host/ehci-au1xxx.c +++ b/drivers/usb/host/ehci-au1xxx.c @@ -227,8 +227,8 @@ static int ehci_hcd_au1xxx_drv_suspend(struct device *dev) * mark HW unaccessible. The PM and USB cores make sure that * the root hub is either suspended or stopped. */ - spin_lock_irqsave(&ehci->lock, flags); ehci_prepare_ports_for_controller_suspend(ehci, device_may_wakeup(dev)); + spin_lock_irqsave(&ehci->lock, flags); ehci_writel(ehci, 0, &ehci->regs->intr_enable); (void)ehci_readl(ehci, &ehci->regs->intr_enable); diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 86e42892016d..5c761df7fa83 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -52,7 +52,6 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, struct resource *res; int irq; int retval; - unsigned int temp; pr_debug("initializing FSL-SOC USB Controller\n"); @@ -126,18 +125,6 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, 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); diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h index 2c8353795226..3fabed33d940 100644 --- a/drivers/usb/host/ehci-fsl.h +++ b/drivers/usb/host/ehci-fsl.h @@ -19,9 +19,6 @@ #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) diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 6fee3cd58efe..74dcf49bd015 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -572,6 +572,8 @@ static int ehci_init(struct usb_hcd *hcd) ehci->iaa_watchdog.function = ehci_iaa_watchdog; ehci->iaa_watchdog.data = (unsigned long) ehci; + hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params); + /* * hw default: 1K periodic list heads, one per frame. * periodic_size can shrink by USBCMD update if hcc_params allows. @@ -579,11 +581,20 @@ static int ehci_init(struct usb_hcd *hcd) ehci->periodic_size = DEFAULT_I_TDPS; INIT_LIST_HEAD(&ehci->cached_itd_list); INIT_LIST_HEAD(&ehci->cached_sitd_list); + + if (HCC_PGM_FRAMELISTLEN(hcc_params)) { + /* periodic schedule size can be smaller than default */ + switch (EHCI_TUNE_FLS) { + case 0: ehci->periodic_size = 1024; break; + case 1: ehci->periodic_size = 512; break; + case 2: ehci->periodic_size = 256; break; + default: BUG(); + } + } if ((retval = ehci_mem_init(ehci, GFP_KERNEL)) < 0) return retval; /* controllers may cache some of the periodic schedule ... */ - hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params); if (HCC_ISOC_CACHE(hcc_params)) // full frame cache ehci->i_thresh = 2 + 8; else // N microframes cached @@ -637,12 +648,6 @@ static int ehci_init(struct usb_hcd *hcd) /* periodic schedule size can be smaller than default */ temp &= ~(3 << 2); temp |= (EHCI_TUNE_FLS << 2); - switch (EHCI_TUNE_FLS) { - case 0: ehci->periodic_size = 1024; break; - case 1: ehci->periodic_size = 512; break; - case 2: ehci->periodic_size = 256; break; - default: BUG(); - } } if (HCC_LPM(hcc_params)) { /* support link power management EHCI 1.1 addendum */ diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 796ea0c8900f..8a515f0d5988 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -111,6 +111,7 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, { int port; u32 temp; + unsigned long flags; /* If remote wakeup is enabled for the root hub but disabled * for the controller, we must adjust all the port wakeup flags @@ -120,6 +121,8 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, if (!ehci_to_hcd(ehci)->self.root_hub->do_remote_wakeup || do_wakeup) return; + spin_lock_irqsave(&ehci->lock, flags); + /* clear phy low-power mode before changing wakeup flags */ if (ehci->has_hostpc) { port = HCS_N_PORTS(ehci->hcs_params); @@ -131,7 +134,9 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, temp = ehci_readl(ehci, hostpc_reg); ehci_writel(ehci, temp & ~HOSTPC_PHCD, hostpc_reg); } + spin_unlock_irqrestore(&ehci->lock, flags); msleep(5); + spin_lock_irqsave(&ehci->lock, flags); } port = HCS_N_PORTS(ehci->hcs_params); @@ -170,6 +175,8 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, /* Does the root hub have a port wakeup pending? */ if (!suspending && (ehci_readl(ehci, &ehci->regs->status) & STS_PCD)) usb_hcd_resume_root_hub(ehci_to_hcd(ehci)); + + spin_unlock_irqrestore(&ehci->lock, flags); } static int ehci_bus_suspend (struct usb_hcd *hcd) diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index fa59b26fc5bc..c8e360d7d975 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -21,10 +21,13 @@ #include <linux/clk.h> #include <linux/delay.h> #include <linux/usb/otg.h> +#include <linux/usb/ulpi.h> #include <linux/slab.h> #include <mach/mxc_ehci.h> +#include <asm/mach-types.h> + #define ULPI_VIEWPORT_OFFSET 0x170 struct ehci_mxc_priv { @@ -114,6 +117,7 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev) struct usb_hcd *hcd; struct resource *res; int irq, ret; + unsigned int flags; struct ehci_mxc_priv *priv; struct device *dev = &pdev->dev; struct ehci_hcd *ehci; @@ -177,8 +181,8 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev) clk_enable(priv->ahbclk); } - /* "dr" device has its own clock */ - if (pdev->id == 0) { + /* "dr" device has its own clock on i.MX51 */ + if (cpu_is_mx51() && (pdev->id == 0)) { priv->phy1clk = clk_get(dev, "usb_phy1"); if (IS_ERR(priv->phy1clk)) { ret = PTR_ERR(priv->phy1clk); @@ -240,6 +244,23 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev) if (ret) goto err_add; + if (pdata->otg) { + /* + * efikamx and efikasb have some hardware bug which is + * preventing usb to work unless CHRGVBUS is set. + * It's in violation of USB specs + */ + if (machine_is_mx51_efikamx() || machine_is_mx51_efikasb()) { + flags = otg_io_read(pdata->otg, ULPI_OTG_CTRL); + flags |= ULPI_OTG_CTRL_CHRGVBUS; + ret = otg_io_write(pdata->otg, flags, ULPI_OTG_CTRL); + if (ret) { + dev_err(dev, "unable to set CHRVBUS\n"); + goto err_add; + } + } + } + return 0; err_add: diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 680f2ef4e59f..f784ceb862a3 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -796,7 +796,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) hcd = usb_create_hcd(&ehci_omap_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { - dev_dbg(&pdev->dev, "failed to create hcd with err %d\n", ret); + dev_err(&pdev->dev, "failed to create hcd with err %d\n", ret); ret = -ENOMEM; goto err_create_hcd; } @@ -864,7 +864,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) ret = omap_start_ehc(omap, hcd); if (ret) { - dev_dbg(&pdev->dev, "failed to start ehci\n"); + dev_err(&pdev->dev, "failed to start ehci with err %d\n", ret); goto err_start; } @@ -879,7 +879,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (ret) { - dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret); + dev_err(&pdev->dev, "failed to add hcd with err %d\n", ret); goto err_add_hcd; } diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 76179c39c0e3..07bb982e59f6 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -44,28 +44,35 @@ static int ehci_pci_reinit(struct ehci_hcd *ehci, struct pci_dev *pdev) return 0; } -static int ehci_quirk_amd_SB800(struct ehci_hcd *ehci) +static int ehci_quirk_amd_hudson(struct ehci_hcd *ehci) { struct pci_dev *amd_smbus_dev; u8 rev = 0; amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, 0x4385, NULL); - if (!amd_smbus_dev) - return 0; - - pci_read_config_byte(amd_smbus_dev, PCI_REVISION_ID, &rev); - if (rev < 0x40) { - pci_dev_put(amd_smbus_dev); - amd_smbus_dev = NULL; - return 0; + if (amd_smbus_dev) { + pci_read_config_byte(amd_smbus_dev, PCI_REVISION_ID, &rev); + if (rev < 0x40) { + pci_dev_put(amd_smbus_dev); + amd_smbus_dev = NULL; + return 0; + } + } else { + amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x780b, NULL); + if (!amd_smbus_dev) + return 0; + pci_read_config_byte(amd_smbus_dev, PCI_REVISION_ID, &rev); + if (rev < 0x11 || rev > 0x18) { + pci_dev_put(amd_smbus_dev); + amd_smbus_dev = NULL; + return 0; + } } if (!amd_nb_dev) amd_nb_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x1510, NULL); - if (!amd_nb_dev) - ehci_err(ehci, "QUIRK: unable to get AMD NB device\n"); - ehci_info(ehci, "QUIRK: Enable AMD SB800 L1 fix\n"); + ehci_info(ehci, "QUIRK: Enable exception for AMD Hudson ASPM\n"); pci_dev_put(amd_smbus_dev); amd_smbus_dev = NULL; @@ -131,7 +138,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd) /* cache this readonly data; minimize chip reads */ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); - if (ehci_quirk_amd_SB800(ehci)) + if (ehci_quirk_amd_hudson(ehci)) ehci->amd_l1_fix = 1; retval = ehci_halt(ehci); @@ -360,8 +367,8 @@ static int ehci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) * mark HW unaccessible. The PM and USB cores make sure that * the root hub is either suspended or stopped. */ - spin_lock_irqsave (&ehci->lock, flags); ehci_prepare_ports_for_controller_suspend(ehci, do_wakeup); + spin_lock_irqsave (&ehci->lock, flags); ehci_writel(ehci, 0, &ehci->regs->intr_enable); (void)ehci_readl(ehci, &ehci->regs->intr_enable); diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index e8f4f36fdf0b..a6f21b891f68 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -29,6 +29,7 @@ #include <linux/of.h> #include <linux/of_platform.h> +#include <linux/of_address.h> /** * ehci_xilinx_of_setup - Initialize the device for ehci_reset() diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 574b99ea0700..79a66d622f9c 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -262,19 +262,24 @@ static void fsl_usb2_mpc5121_exit(struct platform_device *pdev) } } -struct fsl_usb2_platform_data fsl_usb2_mpc5121_pd = { +static struct fsl_usb2_platform_data fsl_usb2_mpc5121_pd = { .big_endian_desc = 1, .big_endian_mmio = 1, .es = 1, + .have_sysif_regs = 0, .le_setup_buf = 1, .init = fsl_usb2_mpc5121_init, .exit = fsl_usb2_mpc5121_exit, }; #endif /* CONFIG_PPC_MPC512x */ +static struct fsl_usb2_platform_data fsl_usb2_mpc8xxx_pd = { + .have_sysif_regs = 1, +}; + static const struct of_device_id fsl_usb2_mph_dr_of_match[] = { - { .compatible = "fsl-usb2-mph", }, - { .compatible = "fsl-usb2-dr", }, + { .compatible = "fsl-usb2-mph", .data = &fsl_usb2_mpc8xxx_pd, }, + { .compatible = "fsl-usb2-dr", .data = &fsl_usb2_mpc8xxx_pd, }, #ifdef CONFIG_PPC_MPC512x { .compatible = "fsl,mpc5121-usb2-dr", .data = &fsl_usb2_mpc5121_pd, }, #endif diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 990f06b89eaa..2e9602a10e9b 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -861,6 +861,7 @@ static int sl811h_urb_enqueue( DBG("dev %d ep%d maxpacket %d\n", udev->devnum, epnum, ep->maxpacket); retval = -EINVAL; + kfree(ep); goto fail; } diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index fcbf4abbf381..0231814a97a5 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -169,9 +169,10 @@ static void xhci_print_ports(struct xhci_hcd *xhci) } } -void xhci_print_ir_set(struct xhci_hcd *xhci, struct xhci_intr_reg *ir_set, int set_num) +void xhci_print_ir_set(struct xhci_hcd *xhci, int set_num) { - void *addr; + struct xhci_intr_reg __iomem *ir_set = &xhci->run_regs->ir_set[set_num]; + void __iomem *addr; u32 temp; u64 temp_64; @@ -449,7 +450,7 @@ char *xhci_get_slot_state(struct xhci_hcd *xhci, } } -void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx) +static void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx) { /* Fields are 32 bits wide, DMA addresses are in bytes */ int field_size = 32 / 8; @@ -488,7 +489,7 @@ void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx) dbg_rsvd64(xhci, (u64 *)slot_ctx, dma); } -void xhci_dbg_ep_ctx(struct xhci_hcd *xhci, +static void xhci_dbg_ep_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int last_ep) { diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 1d0f45f0e7a6..a9534396e85b 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -307,7 +307,7 @@ struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, /***************** Streams structures manipulation *************************/ -void xhci_free_stream_ctx(struct xhci_hcd *xhci, +static void xhci_free_stream_ctx(struct xhci_hcd *xhci, unsigned int num_stream_ctxs, struct xhci_stream_ctx *stream_ctx, dma_addr_t dma) { @@ -335,7 +335,7 @@ void xhci_free_stream_ctx(struct xhci_hcd *xhci, * The stream context array must be a power of 2, and can be as small as * 64 bytes or as large as 1MB. */ -struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci, +static struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci, unsigned int num_stream_ctxs, dma_addr_t *dma, gfp_t mem_flags) { @@ -1900,11 +1900,11 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) val &= DBOFF_MASK; xhci_dbg(xhci, "// Doorbell array is located at offset 0x%x" " from cap regs base addr\n", val); - xhci->dba = (void *) xhci->cap_regs + val; + xhci->dba = (void __iomem *) xhci->cap_regs + val; xhci_dbg_regs(xhci); xhci_print_run_regs(xhci); /* Set ir_set to interrupt register set 0 */ - xhci->ir_set = (void *) xhci->run_regs->ir_set; + xhci->ir_set = &xhci->run_regs->ir_set[0]; /* * Event ring setup: Allocate a normal ring, but also setup @@ -1961,7 +1961,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) /* Set the event ring dequeue address */ xhci_set_hc_event_deq(xhci); xhci_dbg(xhci, "Wrote ERST address to ir_set 0.\n"); - xhci_print_ir_set(xhci, xhci->ir_set, 0); + xhci_print_ir_set(xhci, 0); /* * XXX: Might need to set the Interrupter Moderation Register to diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index df558f6f84e3..3289bf4832c9 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -308,11 +308,8 @@ static int room_on_ring(struct xhci_hcd *xhci, struct xhci_ring *ring, /* Ring the host controller doorbell after placing a command on the ring */ void xhci_ring_cmd_db(struct xhci_hcd *xhci) { - u32 temp; - xhci_dbg(xhci, "// Ding dong!\n"); - temp = xhci_readl(xhci, &xhci->dba->doorbell[0]) & DB_MASK; - xhci_writel(xhci, temp | DB_TARGET_HOST, &xhci->dba->doorbell[0]); + xhci_writel(xhci, DB_VALUE_HOST, &xhci->dba->doorbell[0]); /* Flush PCI posted writes */ xhci_readl(xhci, &xhci->dba->doorbell[0]); } @@ -322,26 +319,24 @@ void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int ep_index, unsigned int stream_id) { - struct xhci_virt_ep *ep; - unsigned int ep_state; - u32 field; __u32 __iomem *db_addr = &xhci->dba->doorbell[slot_id]; + struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index]; + unsigned int ep_state = ep->ep_state; - ep = &xhci->devs[slot_id]->eps[ep_index]; - ep_state = ep->ep_state; /* Don't ring the doorbell for this endpoint if there are pending - * cancellations because the we don't want to interrupt processing. + * cancellations because we don't want to interrupt processing. * We don't want to restart any stream rings if there's a set dequeue * pointer command pending because the device can choose to start any * stream once the endpoint is on the HW schedule. * FIXME - check all the stream rings for pending cancellations. */ - if (!(ep_state & EP_HALT_PENDING) && !(ep_state & SET_DEQ_PENDING) - && !(ep_state & EP_HALTED)) { - field = xhci_readl(xhci, db_addr) & DB_MASK; - field |= EPI_TO_DB(ep_index) | STREAM_ID_TO_DB(stream_id); - xhci_writel(xhci, field, db_addr); - } + if ((ep_state & EP_HALT_PENDING) || (ep_state & SET_DEQ_PENDING) || + (ep_state & EP_HALTED)) + return; + xhci_writel(xhci, DB_VALUE(ep_index, stream_id), db_addr); + /* The CPU has better things to do at this point than wait for a + * write-posting flush. It'll get there soon enough. + */ } /* Ring the doorbell for any rings with pending URBs */ @@ -479,8 +474,11 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, state->new_deq_seg = find_trb_seg(cur_td->start_seg, dev->eps[ep_index].stopped_trb, &state->new_cycle_state); - if (!state->new_deq_seg) - BUG(); + if (!state->new_deq_seg) { + WARN_ON(1); + return; + } + /* Dig out the cycle state saved by the xHC during the stop ep cmd */ xhci_dbg(xhci, "Finding endpoint context\n"); ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index); @@ -491,8 +489,10 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, state->new_deq_seg = find_trb_seg(state->new_deq_seg, state->new_deq_ptr, &state->new_cycle_state); - if (!state->new_deq_seg) - BUG(); + if (!state->new_deq_seg) { + WARN_ON(1); + return; + } trb = &state->new_deq_ptr->generic; if ((trb->field[3] & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK) && @@ -1188,7 +1188,7 @@ static void handle_port_status(struct xhci_hcd *xhci, 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)) { + if (hcd->state == HC_STATE_SUSPENDED) { xhci_dbg(xhci, "resume root hub\n"); usb_hcd_resume_root_hub(hcd); } @@ -1710,8 +1710,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, /* Others already handled above */ break; } - dev_dbg(&td->urb->dev->dev, - "ep %#x - asked for %d bytes, " + xhci_dbg(xhci, "ep %#x - asked for %d bytes, " "%d bytes untransferred\n", td->urb->ep->desc.bEndpointAddress, td->urb->transfer_buffer_length, @@ -2369,12 +2368,13 @@ static unsigned int count_sg_trbs_needed(struct xhci_hcd *xhci, struct urb *urb) /* Scatter gather list entries may cross 64KB boundaries */ running_total = TRB_MAX_BUFF_SIZE - - (sg_dma_address(sg) & ((1 << TRB_MAX_BUFF_SHIFT) - 1)); + (sg_dma_address(sg) & (TRB_MAX_BUFF_SIZE - 1)); + running_total &= TRB_MAX_BUFF_SIZE - 1; if (running_total != 0) num_trbs++; /* How many more 64KB chunks to transfer, how many more TRBs? */ - while (running_total < sg_dma_len(sg)) { + while (running_total < sg_dma_len(sg) && running_total < temp) { num_trbs++; running_total += TRB_MAX_BUFF_SIZE; } @@ -2389,7 +2389,8 @@ static unsigned int count_sg_trbs_needed(struct xhci_hcd *xhci, struct urb *urb) } xhci_dbg(xhci, "\n"); if (!in_interrupt()) - dev_dbg(&urb->dev->dev, "ep %#x - urb len = %d, sglist used, num_trbs = %d\n", + xhci_dbg(xhci, "ep %#x - urb len = %d, sglist used, " + "num_trbs = %d\n", urb->ep->desc.bEndpointAddress, urb->transfer_buffer_length, num_trbs); @@ -2399,11 +2400,11 @@ static unsigned int count_sg_trbs_needed(struct xhci_hcd *xhci, struct urb *urb) static void check_trb_math(struct urb *urb, int num_trbs, int running_total) { if (num_trbs != 0) - dev_dbg(&urb->dev->dev, "%s - ep %#x - Miscalculated number of " + dev_err(&urb->dev->dev, "%s - ep %#x - Miscalculated number of " "TRBs, %d left\n", __func__, urb->ep->desc.bEndpointAddress, num_trbs); if (running_total != urb->transfer_buffer_length) - dev_dbg(&urb->dev->dev, "%s - ep %#x - Miscalculated tx length, " + dev_err(&urb->dev->dev, "%s - ep %#x - Miscalculated tx length, " "queued %#x (%d), asked for %#x (%d)\n", __func__, urb->ep->desc.bEndpointAddress, @@ -2414,14 +2415,17 @@ static void check_trb_math(struct urb *urb, int num_trbs, int running_total) static void giveback_first_trb(struct xhci_hcd *xhci, int slot_id, unsigned int ep_index, unsigned int stream_id, int start_cycle, - struct xhci_generic_trb *start_trb, struct xhci_td *td) + struct xhci_generic_trb *start_trb) { /* * Pass all the TRBs to the hardware at once and make sure this write * isn't reordered. */ wmb(); - start_trb->field[3] |= start_cycle; + if (start_cycle) + start_trb->field[3] |= start_cycle; + else + start_trb->field[3] &= ~0x1; xhci_ring_ep_doorbell(xhci, slot_id, ep_index, stream_id); } @@ -2449,7 +2453,7 @@ int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, * to set the polling interval (once the API is added). */ if (xhci_interval != ep_interval) { - if (!printk_ratelimit()) + if (printk_ratelimit()) dev_dbg(&urb->dev->dev, "Driver uses different interval" " (%d microframe%s) than xHCI " "(%d microframe%s)\n", @@ -2535,8 +2539,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags, sg = urb->sg; addr = (u64) sg_dma_address(sg); this_sg_len = sg_dma_len(sg); - trb_buff_len = TRB_MAX_BUFF_SIZE - - (addr & ((1 << TRB_MAX_BUFF_SHIFT) - 1)); + trb_buff_len = TRB_MAX_BUFF_SIZE - (addr & (TRB_MAX_BUFF_SIZE - 1)); trb_buff_len = min_t(int, trb_buff_len, this_sg_len); if (trb_buff_len > urb->transfer_buffer_length) trb_buff_len = urb->transfer_buffer_length; @@ -2551,9 +2554,11 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags, u32 remainder = 0; /* Don't change the cycle bit of the first TRB until later */ - if (first_trb) + if (first_trb) { first_trb = false; - else + if (start_cycle == 0) + field |= 0x1; + } else field |= ep_ring->cycle_state; /* Chain all the TRBs together; clear the chain bit in the last @@ -2572,7 +2577,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags, (unsigned int) (addr + TRB_MAX_BUFF_SIZE) & ~(TRB_MAX_BUFF_SIZE - 1), (unsigned int) addr + trb_buff_len); if (TRB_MAX_BUFF_SIZE - - (addr & ((1 << TRB_MAX_BUFF_SHIFT) - 1)) < trb_buff_len) { + (addr & (TRB_MAX_BUFF_SIZE - 1)) < trb_buff_len) { xhci_warn(xhci, "WARN: sg dma xfer crosses 64KB boundaries!\n"); xhci_dbg(xhci, "Next boundary at %#x, end dma = %#x\n", (unsigned int) (addr + TRB_MAX_BUFF_SIZE) & ~(TRB_MAX_BUFF_SIZE - 1), @@ -2616,7 +2621,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags, } trb_buff_len = TRB_MAX_BUFF_SIZE - - (addr & ((1 << TRB_MAX_BUFF_SHIFT) - 1)); + (addr & (TRB_MAX_BUFF_SIZE - 1)); trb_buff_len = min_t(int, trb_buff_len, this_sg_len); if (running_total + trb_buff_len > urb->transfer_buffer_length) trb_buff_len = @@ -2625,7 +2630,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags, check_trb_math(urb, num_trbs, running_total); giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id, - start_cycle, start_trb, td); + start_cycle, start_trb); return 0; } @@ -2656,7 +2661,8 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, num_trbs = 0; /* How much data is (potentially) left before the 64KB boundary? */ running_total = TRB_MAX_BUFF_SIZE - - (urb->transfer_dma & ((1 << TRB_MAX_BUFF_SHIFT) - 1)); + (urb->transfer_dma & (TRB_MAX_BUFF_SIZE - 1)); + running_total &= TRB_MAX_BUFF_SIZE - 1; /* If there's some data on this 64KB chunk, or we have to send a * zero-length transfer, we need at least one TRB @@ -2671,7 +2677,8 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, /* FIXME: this doesn't deal with URB_ZERO_PACKET - need one more */ if (!in_interrupt()) - dev_dbg(&urb->dev->dev, "ep %#x - urb len = %#x (%d), addr = %#llx, num_trbs = %d\n", + xhci_dbg(xhci, "ep %#x - urb len = %#x (%d), " + "addr = %#llx, num_trbs = %d\n", urb->ep->desc.bEndpointAddress, urb->transfer_buffer_length, urb->transfer_buffer_length, @@ -2699,8 +2706,8 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, /* How much data is in the first TRB? */ addr = (u64) urb->transfer_dma; trb_buff_len = TRB_MAX_BUFF_SIZE - - (urb->transfer_dma & ((1 << TRB_MAX_BUFF_SHIFT) - 1)); - if (urb->transfer_buffer_length < trb_buff_len) + (urb->transfer_dma & (TRB_MAX_BUFF_SIZE - 1)); + if (trb_buff_len > urb->transfer_buffer_length) trb_buff_len = urb->transfer_buffer_length; first_trb = true; @@ -2711,9 +2718,11 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, field = 0; /* Don't change the cycle bit of the first TRB until later */ - if (first_trb) + if (first_trb) { first_trb = false; - else + if (start_cycle == 0) + field |= 0x1; + } else field |= ep_ring->cycle_state; /* Chain all the TRBs together; clear the chain bit in the last @@ -2757,7 +2766,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, check_trb_math(urb, num_trbs, running_total); giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id, - start_cycle, start_trb, td); + start_cycle, start_trb); return 0; } @@ -2818,13 +2827,17 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, /* Queue setup TRB - see section 6.4.1.2.1 */ /* FIXME better way to translate setup_packet into two u32 fields? */ setup = (struct usb_ctrlrequest *) urb->setup_packet; + field = 0; + field |= TRB_IDT | TRB_TYPE(TRB_SETUP); + if (start_cycle == 0) + field |= 0x1; queue_trb(xhci, ep_ring, false, true, /* FIXME endianness is probably going to bite my ass here. */ setup->bRequestType | setup->bRequest << 8 | setup->wValue << 16, setup->wIndex | setup->wLength << 16, TRB_LEN(8) | TRB_INTR_TARGET(0), /* Immediate data in pointer */ - TRB_IDT | TRB_TYPE(TRB_SETUP)); + field); /* If there's data, queue data TRBs */ field = 0; @@ -2859,7 +2872,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, field | TRB_IOC | TRB_TYPE(TRB_STATUS) | ep_ring->cycle_state); giveback_first_trb(xhci, slot_id, ep_index, 0, - start_cycle, start_trb, td); + start_cycle, start_trb); return 0; } @@ -2872,8 +2885,8 @@ static int count_isoc_trbs_needed(struct xhci_hcd *xhci, addr = (u64) (urb->transfer_dma + urb->iso_frame_desc[i].offset); td_len = urb->iso_frame_desc[i].length; - running_total = TRB_MAX_BUFF_SIZE - - (addr & ((1 << TRB_MAX_BUFF_SHIFT) - 1)); + running_total = TRB_MAX_BUFF_SIZE - (addr & (TRB_MAX_BUFF_SIZE - 1)); + running_total &= TRB_MAX_BUFF_SIZE - 1; if (running_total != 0) num_trbs++; @@ -2900,6 +2913,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, int running_total, trb_buff_len, td_len, td_remain_len, ret; u64 start_addr, addr; int i, j; + bool more_trbs_coming; ep_ring = xhci->devs[slot_id]->eps[ep_index].ring; @@ -2910,7 +2924,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, } if (!in_interrupt()) - dev_dbg(&urb->dev->dev, "ep %#x - urb len = %#x (%d)," + xhci_dbg(xhci, "ep %#x - urb len = %#x (%d)," " addr = %#llx, num_tds = %d\n", urb->ep->desc.bEndpointAddress, urb->transfer_buffer_length, @@ -2950,7 +2964,10 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, field |= TRB_TYPE(TRB_ISOC); /* Assume URB_ISO_ASAP is set */ field |= TRB_SIA; - if (i > 0) + if (i == 0) { + if (start_cycle == 0) + field |= 0x1; + } else field |= ep_ring->cycle_state; first_trb = false; } else { @@ -2965,9 +2982,11 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, */ if (j < trbs_per_td - 1) { field |= TRB_CHAIN; + more_trbs_coming = true; } else { td->last_trb = ep_ring->enqueue; field |= TRB_IOC; + more_trbs_coming = false; } /* Calculate TRB length */ @@ -2980,7 +2999,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, length_field = TRB_LEN(trb_buff_len) | remainder | TRB_INTR_TARGET(0); - queue_trb(xhci, ep_ring, false, false, + queue_trb(xhci, ep_ring, false, more_trbs_coming, lower_32_bits(addr), upper_32_bits(addr), length_field, @@ -3003,10 +3022,8 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags, } } - wmb(); - start_trb->field[3] |= start_cycle; - - xhci_ring_ep_doorbell(xhci, slot_id, ep_index, urb->stream_id); + giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id, + start_cycle, start_trb); return 0; } @@ -3064,7 +3081,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, * to set the polling interval (once the API is added). */ if (xhci_interval != ep_interval) { - if (!printk_ratelimit()) + if (printk_ratelimit()) dev_dbg(&urb->dev->dev, "Driver uses different interval" " (%d microframe%s) than xHCI " "(%d microframe%s)\n", diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 45e4a3108cc3..2083fc2179b2 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -109,7 +109,7 @@ int xhci_halt(struct xhci_hcd *xhci) /* * Set the run bit and wait for the host to be running. */ -int xhci_start(struct xhci_hcd *xhci) +static int xhci_start(struct xhci_hcd *xhci) { u32 temp; int ret; @@ -226,7 +226,8 @@ static int xhci_setup_msi(struct xhci_hcd *xhci) static int xhci_setup_msix(struct xhci_hcd *xhci) { int i, ret = 0; - struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); + struct usb_hcd *hcd = xhci_to_hcd(xhci); + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); /* * calculate number of msi-x vectors supported. @@ -265,6 +266,7 @@ static int xhci_setup_msix(struct xhci_hcd *xhci) goto disable_msix; } + hcd->msix_enabled = 1; return ret; disable_msix: @@ -280,7 +282,8 @@ free_entries: /* Free any IRQs and disable MSI-X */ static void xhci_cleanup_msix(struct xhci_hcd *xhci) { - struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); + struct usb_hcd *hcd = xhci_to_hcd(xhci); + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); xhci_free_irq(xhci); @@ -292,6 +295,7 @@ static void xhci_cleanup_msix(struct xhci_hcd *xhci) pci_disable_msi(pdev); } + hcd->msix_enabled = 0; return; } @@ -325,7 +329,7 @@ int xhci_init(struct usb_hcd *hcd) #ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -void xhci_event_ring_work(unsigned long arg) +static void xhci_event_ring_work(unsigned long arg) { unsigned long flags; int temp; @@ -469,7 +473,7 @@ int xhci_run(struct usb_hcd *hcd) xhci->ir_set, (unsigned int) ER_IRQ_ENABLE(temp)); xhci_writel(xhci, ER_IRQ_ENABLE(temp), &xhci->ir_set->irq_pending); - xhci_print_ir_set(xhci, xhci->ir_set, 0); + xhci_print_ir_set(xhci, 0); if (NUM_TEST_NOOPS > 0) doorbell = xhci_setup_one_noop(xhci); @@ -508,9 +512,10 @@ void xhci_stop(struct usb_hcd *hcd) spin_lock_irq(&xhci->lock); xhci_halt(xhci); xhci_reset(xhci); - xhci_cleanup_msix(xhci); spin_unlock_irq(&xhci->lock); + xhci_cleanup_msix(xhci); + #ifdef CONFIG_USB_XHCI_HCD_DEBUGGING /* Tell the event ring poll function not to reschedule */ xhci->zombie = 1; @@ -523,7 +528,7 @@ void xhci_stop(struct usb_hcd *hcd) 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_print_ir_set(xhci, 0); xhci_dbg(xhci, "cleaning up memory\n"); xhci_mem_cleanup(xhci); @@ -544,9 +549,10 @@ void xhci_shutdown(struct usb_hcd *hcd) spin_lock_irq(&xhci->lock); xhci_halt(xhci); - xhci_cleanup_msix(xhci); spin_unlock_irq(&xhci->lock); + xhci_cleanup_msix(xhci); + xhci_dbg(xhci, "xhci_shutdown completed - status = %x\n", xhci_readl(xhci, &xhci->op_regs->status)); } @@ -647,6 +653,7 @@ int xhci_suspend(struct xhci_hcd *xhci) int rc = 0; struct usb_hcd *hcd = xhci_to_hcd(xhci); u32 command; + int i; spin_lock_irq(&xhci->lock); clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); @@ -677,10 +684,15 @@ int xhci_suspend(struct xhci_hcd *xhci) spin_unlock_irq(&xhci->lock); return -ETIMEDOUT; } - /* step 5: remove core well power */ - xhci_cleanup_msix(xhci); spin_unlock_irq(&xhci->lock); + /* step 5: remove core well power */ + /* synchronize irq when using MSI-X */ + if (xhci->msix_entries) { + for (i = 0; i < xhci->msix_count; i++) + synchronize_irq(xhci->msix_entries[i].vector); + } + return rc; } @@ -694,7 +706,6 @@ 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); int old_state, retval; old_state = hcd->state; @@ -729,9 +740,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) xhci_dbg(xhci, "Stop HCD\n"); xhci_halt(xhci); xhci_reset(xhci); - if (hibernated) - xhci_cleanup_msix(xhci); spin_unlock_irq(&xhci->lock); + xhci_cleanup_msix(xhci); #ifdef CONFIG_USB_XHCI_HCD_DEBUGGING /* Tell the event ring poll function not to reschedule */ @@ -745,7 +755,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) 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_print_ir_set(xhci, 0); xhci_dbg(xhci, "cleaning up memory\n"); xhci_mem_cleanup(xhci); @@ -765,30 +775,6 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) return retval; } - spin_unlock_irq(&xhci->lock); - /* 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; - } - - spin_lock_irq(&xhci->lock); /* step 4: set Run/Stop bit */ command = xhci_readl(xhci, &xhci->op_regs->command); command |= CMD_RUN; @@ -871,7 +857,7 @@ unsigned int xhci_last_valid_endpoint(u32 added_ctxs) /* Returns 1 if the arguments are OK; * returns 0 this is a root hub; returns -EINVAL for NULL pointers. */ -int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev, +static int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep, int check_ep, bool check_virt_dev, const char *func) { struct xhci_hcd *xhci; @@ -1707,7 +1693,7 @@ static void xhci_setup_input_ctx_for_config_ep(struct xhci_hcd *xhci, xhci_dbg_ctx(xhci, in_ctx, xhci_last_valid_endpoint(add_flags)); } -void xhci_setup_input_ctx_for_quirk(struct xhci_hcd *xhci, +static void xhci_setup_input_ctx_for_quirk(struct xhci_hcd *xhci, unsigned int slot_id, unsigned int ep_index, struct xhci_dequeue_state *deq_state) { @@ -2445,8 +2431,12 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev) xhci_err(xhci, "Error while assigning device slot ID\n"); return 0; } - /* xhci_alloc_virt_device() does not touch rings; no need to lock */ - if (!xhci_alloc_virt_device(xhci, xhci->slot_id, udev, GFP_KERNEL)) { + /* xhci_alloc_virt_device() does not touch rings; no need to lock. + * Use GFP_NOIO, since this function can be called from + * xhci_discover_or_reset_device(), which may be called as part of + * mass storage driver error handling. + */ + if (!xhci_alloc_virt_device(xhci, xhci->slot_id, udev, GFP_NOIO)) { /* Disable slot, if we can do it without mem alloc */ xhci_warn(xhci, "Could not allocate xHCI USB device data structures\n"); spin_lock_irqsave(&xhci->lock, flags); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 170c367112d2..7f127df6dd55 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -436,22 +436,18 @@ struct xhci_run_regs { /** * struct doorbell_array * + * Bits 0 - 7: Endpoint target + * Bits 8 - 15: RsvdZ + * Bits 16 - 31: Stream ID + * * Section 5.6 */ struct xhci_doorbell_array { u32 doorbell[256]; }; -#define DB_TARGET_MASK 0xFFFFFF00 -#define DB_STREAM_ID_MASK 0x0000FFFF -#define DB_TARGET_HOST 0x0 -#define DB_STREAM_ID_HOST 0x0 -#define DB_MASK (0xff << 8) - -/* Endpoint Target - bits 0:7 */ -#define EPI_TO_DB(p) (((p) + 1) & 0xff) -#define STREAM_ID_TO_DB(p) (((p) & 0xffff) << 16) - +#define DB_VALUE(ep, stream) ((((ep) + 1) & 0xff) | ((stream) << 16)) +#define DB_VALUE_HOST 0x00000000 /** * struct xhci_protocol_caps @@ -1352,7 +1348,7 @@ static inline int xhci_link_trb_quirk(struct xhci_hcd *xhci) } /* xHCI debugging */ -void xhci_print_ir_set(struct xhci_hcd *xhci, struct xhci_intr_reg *ir_set, int set_num); +void xhci_print_ir_set(struct xhci_hcd *xhci, int set_num); void xhci_print_registers(struct xhci_hcd *xhci); void xhci_dbg_regs(struct xhci_hcd *xhci); void xhci_print_run_regs(struct xhci_hcd *xhci); |