diff options
Diffstat (limited to 'drivers/usb/host')
62 files changed, 5684 insertions, 1227 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 228797e54f9c..56f592dc0b36 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -138,7 +138,6 @@ config USB_OHCI_HCD tristate "OHCI HCD support" depends on USB && USB_ARCH_HAS_OHCI select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 - select I2C if ARCH_PNX4008 ---help--- The Open Host Controller Interface (OHCI) is a standard for accessing USB 1.1 host controller hardware. It does more in hardware than Intel's @@ -305,3 +304,31 @@ config SUPERH_ON_CHIP_R8A66597 help This driver enables support for the on-chip R8A66597 in the SH7366 and SH7723 processors. + +config USB_WHCI_HCD + tristate "Wireless USB Host Controller Interface (WHCI) driver (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on PCI && USB + select USB_WUSB + select UWB_WHCI + help + A driver for PCI-based Wireless USB Host Controllers that are + compliant with the WHCI specification. + + To compile this driver a module, choose M here: the module + will be called "whci-hcd". + +config USB_HWA_HCD + tristate "Host Wire Adapter (HWA) driver (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on USB + select USB_WUSB + select UWB_HWA + help + This driver enables you to connect Wireless USB devices to + your system using a Host Wire Adaptor USB dongle. This is an + UWB Radio Controller and WUSB Host Controller connected to + your machine via USB (specified in WUSB1.0). + + To compile this driver a module, choose M here: the module + will be called "hwa-hc". diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index f1edda2dcfde..23be22224044 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -8,6 +8,8 @@ endif isp1760-objs := isp1760-hcd.o isp1760-if.o +obj-$(CONFIG_USB_WHCI_HCD) += whci/ + obj-$(CONFIG_PCI) += pci-quirks.o obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o @@ -19,3 +21,4 @@ obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o obj-$(CONFIG_USB_ISP1760_HCD) += isp1760.o +obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c index 08a4335401a9..bf69f4739107 100644 --- a/drivers/usb/host/ehci-au1xxx.c +++ b/drivers/usb/host/ehci-au1xxx.c @@ -19,263 +19,304 @@ #define USB_MCFG_RDCOMB (1<<30) #define USB_MCFG_SSDEN (1<<23) #define USB_MCFG_PHYPLLEN (1<<19) +#define USB_MCFG_UCECLKEN (1<<18) #define USB_MCFG_EHCCLKEN (1<<17) +#ifdef CONFIG_DMA_COHERENT #define USB_MCFG_UCAM (1<<7) +#else +#define USB_MCFG_UCAM (0) +#endif #define USB_MCFG_EBMEN (1<<3) #define USB_MCFG_EMEMEN (1<<2) -#define USBH_ENABLE_CE (USB_MCFG_PHYPLLEN | USB_MCFG_EHCCLKEN) +#define USBH_ENABLE_CE (USB_MCFG_PHYPLLEN | USB_MCFG_EHCCLKEN) +#define USBH_ENABLE_INIT (USB_MCFG_PFEN | USB_MCFG_RDCOMB | \ + USBH_ENABLE_CE | USB_MCFG_SSDEN | \ + USB_MCFG_UCAM | USB_MCFG_EBMEN | \ + USB_MCFG_EMEMEN) -#ifdef CONFIG_DMA_COHERENT -#define USBH_ENABLE_INIT (USBH_ENABLE_CE \ - | USB_MCFG_PFEN | USB_MCFG_RDCOMB \ - | USB_MCFG_SSDEN | USB_MCFG_UCAM \ - | USB_MCFG_EBMEN | USB_MCFG_EMEMEN) -#else -#define USBH_ENABLE_INIT (USBH_ENABLE_CE \ - | USB_MCFG_PFEN | USB_MCFG_RDCOMB \ - | USB_MCFG_SSDEN \ - | USB_MCFG_EBMEN | USB_MCFG_EMEMEN) -#endif #define USBH_DISABLE (USB_MCFG_EBMEN | USB_MCFG_EMEMEN) extern int usb_disabled(void); -/*-------------------------------------------------------------------------*/ - -static void au1xxx_start_ehc(struct platform_device *dev) +static void au1xxx_start_ehc(void) { - pr_debug(__FILE__ ": starting Au1xxx EHCI USB Controller\n"); - - /* write HW defaults again in case Yamon cleared them */ - if (au_readl(USB_HOST_CONFIG) == 0) { - au_writel(0x00d02000, USB_HOST_CONFIG); - au_readl(USB_HOST_CONFIG); - udelay(1000); - } - /* enable host controller */ - au_writel(USBH_ENABLE_CE | au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); - au_readl(USB_HOST_CONFIG); - udelay(1000); - au_writel(USBH_ENABLE_INIT | au_readl(USB_HOST_CONFIG), - USB_HOST_CONFIG); - au_readl(USB_HOST_CONFIG); + /* enable clock to EHCI block and HS PHY PLL*/ + au_writel(au_readl(USB_HOST_CONFIG) | USBH_ENABLE_CE, USB_HOST_CONFIG); + au_sync(); udelay(1000); - pr_debug(__FILE__ ": Clock to USB host has been enabled\n"); + /* enable EHCI mmio */ + au_writel(au_readl(USB_HOST_CONFIG) | USBH_ENABLE_INIT, USB_HOST_CONFIG); + au_sync(); + udelay(1000); } -static void au1xxx_stop_ehc(struct platform_device *dev) +static void au1xxx_stop_ehc(void) { - pr_debug(__FILE__ ": stopping Au1xxx EHCI USB Controller\n"); + unsigned long c; /* Disable mem */ - au_writel(~USBH_DISABLE & au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); + au_writel(au_readl(USB_HOST_CONFIG) & ~USBH_DISABLE, USB_HOST_CONFIG); + au_sync(); udelay(1000); - /* Disable clock */ - au_writel(~USB_MCFG_EHCCLKEN & au_readl(USB_HOST_CONFIG), - USB_HOST_CONFIG); - au_readl(USB_HOST_CONFIG); + + /* Disable EHC clock. If the HS PHY is unused disable it too. */ + c = au_readl(USB_HOST_CONFIG) & ~USB_MCFG_EHCCLKEN; + if (!(c & USB_MCFG_UCECLKEN)) /* UDC disabled? */ + c &= ~USB_MCFG_PHYPLLEN; /* yes: disable HS PHY PLL */ + au_writel(c, USB_HOST_CONFIG); + au_sync(); } -/*-------------------------------------------------------------------------*/ +static const struct hc_driver ehci_au1xxx_hc_driver = { + .description = hcd_name, + .product_desc = "Au1xxx EHCI", + .hcd_priv_size = sizeof(struct ehci_hcd), + + /* + * generic hardware linkage + */ + .irq = ehci_irq, + .flags = HCD_MEMORY | HCD_USB2, + + /* + * basic lifecycle operations + * + * FIXME -- ehci_init() doesn't do enough here. + * See ehci-ppc-soc for a complete implementation. + */ + .reset = ehci_init, + .start = ehci_run, + .stop = ehci_stop, + .shutdown = ehci_shutdown, -/* configure so an HC device and id are always provided */ -/* always called with process context; sleeping is OK */ + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ehci_urb_enqueue, + .urb_dequeue = ehci_urb_dequeue, + .endpoint_disable = ehci_endpoint_disable, -/** - * usb_ehci_au1xxx_probe - initialize Au1xxx-based HCDs - * Context: !in_interrupt() - * - * Allocates basic resources for this USB host controller, and - * then invokes the start() method for the HCD associated with it - * through the hotplug entry's driver_data. - * - */ -int usb_ehci_au1xxx_probe(const struct hc_driver *driver, - struct usb_hcd **hcd_out, struct platform_device *dev) + /* + * scheduling support + */ + .get_frame_number = ehci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ehci_hub_status_data, + .hub_control = ehci_hub_control, + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, + .relinquish_port = ehci_relinquish_port, + .port_handed_over = ehci_port_handed_over, +}; + +static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev) { - int retval; struct usb_hcd *hcd; struct ehci_hcd *ehci; + int ret; -#if defined(CONFIG_SOC_AU1200) && defined(CONFIG_DMA_COHERENT) + if (usb_disabled()) + return -ENODEV; +#if defined(CONFIG_SOC_AU1200) && defined(CONFIG_DMA_COHERENT) /* Au1200 AB USB does not support coherent memory */ if (!(read_c0_prid() & 0xff)) { - pr_info("%s: this is chip revision AB!\n", dev->name); - pr_info("%s: update your board or re-configure the kernel\n", - dev->name); + printk(KERN_INFO "%s: this is chip revision AB!\n", pdev->name); + printk(KERN_INFO "%s: update your board or re-configure" + " the kernel\n", pdev->name); return -ENODEV; } #endif - au1xxx_start_ehc(dev); - - if (dev->resource[1].flags != IORESOURCE_IRQ) { + if (pdev->resource[1].flags != IORESOURCE_IRQ) { pr_debug("resource[1] is not IORESOURCE_IRQ"); - retval = -ENOMEM; + return -ENOMEM; } - hcd = usb_create_hcd(driver, &dev->dev, "Au1xxx"); + hcd = usb_create_hcd(&ehci_au1xxx_hc_driver, &pdev->dev, "Au1xxx"); if (!hcd) return -ENOMEM; - hcd->rsrc_start = dev->resource[0].start; - hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1; + + hcd->rsrc_start = pdev->resource[0].start; + hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1; if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { pr_debug("request_mem_region failed"); - retval = -EBUSY; + ret = -EBUSY; goto err1; } hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); if (!hcd->regs) { pr_debug("ioremap failed"); - retval = -ENOMEM; + ret = -ENOMEM; goto err2; } + au1xxx_start_ehc(); + ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs; ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase)); /* cache this readonly data; minimize chip reads */ ehci->hcs_params = readl(&ehci->caps->hcs_params); - /* ehci_hcd_init(hcd_to_ehci(hcd)); */ - - retval = - usb_add_hcd(hcd, dev->resource[1].start, IRQF_DISABLED | IRQF_SHARED); - if (retval == 0) - return retval; + ret = usb_add_hcd(hcd, pdev->resource[1].start, + IRQF_DISABLED | IRQF_SHARED); + if (ret == 0) { + platform_set_drvdata(pdev, hcd); + return ret; + } - au1xxx_stop_ehc(dev); + au1xxx_stop_ehc(); iounmap(hcd->regs); err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err1: usb_put_hcd(hcd); - return retval; + return ret; } -/* may be called without controller electrically present */ -/* may be called with controller, bus, and devices active */ - -/** - * usb_ehci_hcd_au1xxx_remove - shutdown processing for Au1xxx-based HCDs - * @dev: USB Host Controller being removed - * Context: !in_interrupt() - * - * Reverses the effect of usb_ehci_hcd_au1xxx_probe(), first invoking - * the HCD's stop() method. It is always called from a thread - * context, normally "rmmod", "apmd", or something similar. - * - */ -void usb_ehci_au1xxx_remove(struct usb_hcd *hcd, struct platform_device *dev) +static int ehci_hcd_au1xxx_drv_remove(struct platform_device *pdev) { + struct usb_hcd *hcd = platform_get_drvdata(pdev); + usb_remove_hcd(hcd); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); - au1xxx_stop_ehc(dev); + au1xxx_stop_ehc(); + platform_set_drvdata(pdev, NULL); + + return 0; } -/*-------------------------------------------------------------------------*/ +#ifdef CONFIG_PM +static int ehci_hcd_au1xxx_drv_suspend(struct platform_device *pdev, + pm_message_t message) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + unsigned long flags; + int rc; -static const struct hc_driver ehci_au1xxx_hc_driver = { - .description = hcd_name, - .product_desc = "Au1xxx EHCI", - .hcd_priv_size = sizeof(struct ehci_hcd), + return 0; + rc = 0; - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + if (time_before(jiffies, ehci->next_statechange)) + msleep(10); - /* - * basic lifecycle operations + /* Root hub was already suspended. Disable irq emission and + * mark HW unaccessible, bail out if RH has been resumed. Use + * the spinlock to properly synchronize with possible pending + * RH suspend or resume activity. * - * FIXME -- ehci_init() doesn't do enough here. - * See ehci-ppc-soc for a complete implementation. - */ - .reset = ehci_init, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources + * This is still racy as hcd->state is manipulated outside of + * any locks =P But that will be a different fix. */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, + spin_lock_irqsave(&ehci->lock, flags); + if (hcd->state != HC_STATE_SUSPENDED) { + rc = -EINVAL; + goto bail; + } + ehci_writel(ehci, 0, &ehci->regs->intr_enable); + (void)ehci_readl(ehci, &ehci->regs->intr_enable); - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, + /* make sure snapshot being resumed re-enumerates everything */ + if (message.event == PM_EVENT_PRETHAW) { + ehci_halt(ehci); + ehci_reset(ehci); + } - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, -}; + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); -/*-------------------------------------------------------------------------*/ + au1xxx_stop_ehc(); -static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev) -{ - struct usb_hcd *hcd = NULL; - int ret; +bail: + spin_unlock_irqrestore(&ehci->lock, flags); - pr_debug("In ehci_hcd_au1xxx_drv_probe\n"); + // could save FLADJ in case of Vaux power loss + // ... we'd only use it to handle clock skew - if (usb_disabled()) - return -ENODEV; - - /* FIXME we only want one one probe() not two */ - ret = usb_ehci_au1xxx_probe(&ehci_au1xxx_hc_driver, &hcd, pdev); - return ret; + return rc; } -static int ehci_hcd_au1xxx_drv_remove(struct platform_device *pdev) + +static int ehci_hcd_au1xxx_drv_resume(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct ehci_hcd *ehci = hcd_to_ehci(hcd); - /* FIXME we only want one one remove() not two */ - usb_ehci_au1xxx_remove(hcd, pdev); - return 0; -} + au1xxx_start_ehc(); - /*TBD*/ -/*static int ehci_hcd_au1xxx_drv_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct usb_hcd *hcd = dev_get_drvdata(dev); + // maybe restore FLADJ - return 0; -} -static int ehci_hcd_au1xxx_drv_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct usb_hcd *hcd = dev_get_drvdata(dev); + if (time_before(jiffies, ehci->next_statechange)) + msleep(100); + + /* Mark hardware accessible again as we are out of D3 state by now */ + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + + /* If CF is still set, we maintained PCI Vaux power. + * Just undo the effect of ehci_pci_suspend(). + */ + if (ehci_readl(ehci, &ehci->regs->configured_flag) == FLAG_CF) { + int mask = INTR_MASK; + + if (!hcd->self.root_hub->do_remote_wakeup) + mask &= ~STS_PCD; + ehci_writel(ehci, mask, &ehci->regs->intr_enable); + ehci_readl(ehci, &ehci->regs->intr_enable); + return 0; + } + + ehci_dbg(ehci, "lost power, restarting\n"); + usb_root_hub_lost_power(hcd->self.root_hub); + + /* Else reset, to cope with power loss or flush-to-storage + * style "resume" having let BIOS kick in during reboot. + */ + (void) ehci_halt(ehci); + (void) ehci_reset(ehci); + + /* emptying the schedule aborts any urbs */ + spin_lock_irq(&ehci->lock); + if (ehci->reclaim) + end_unlink_async(ehci); + ehci_work(ehci); + spin_unlock_irq(&ehci->lock); + + ehci_writel(ehci, ehci->command, &ehci->regs->command); + ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag); + ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */ + + /* here we "know" root ports should always stay powered */ + ehci_port_power(ehci, 1); + + hcd->state = HC_STATE_SUSPENDED; return 0; } -*/ -MODULE_ALIAS("platform:au1xxx-ehci"); + +#else +#define ehci_hcd_au1xxx_drv_suspend NULL +#define ehci_hcd_au1xxx_drv_resume NULL +#endif + static struct platform_driver ehci_hcd_au1xxx_driver = { - .probe = ehci_hcd_au1xxx_drv_probe, - .remove = ehci_hcd_au1xxx_drv_remove, - .shutdown = usb_hcd_platform_shutdown, - /*.suspend = ehci_hcd_au1xxx_drv_suspend, */ - /*.resume = ehci_hcd_au1xxx_drv_resume, */ + .probe = ehci_hcd_au1xxx_drv_probe, + .remove = ehci_hcd_au1xxx_drv_remove, + .shutdown = usb_hcd_platform_shutdown, + .suspend = ehci_hcd_au1xxx_drv_suspend, + .resume = ehci_hcd_au1xxx_drv_resume, .driver = { - .name = "au1xxx-ehci", + .name = "au1xxx-ehci", + .owner = THIS_MODULE, } }; + +MODULE_ALIAS("platform:au1xxx-ehci"); diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 0f82fdcaef09..0cb53ca8d343 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -358,7 +358,8 @@ struct debug_buffer { struct usb_bus *bus; struct mutex mutex; /* protect filling of buffer */ size_t count; /* number of characters filled into buffer */ - char *page; + char *output_buf; + size_t alloc_size; }; #define speed_char(info1) ({ char tmp; \ @@ -488,8 +489,8 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) hcd = bus_to_hcd(buf->bus); ehci = hcd_to_ehci (hcd); - next = buf->page; - size = PAGE_SIZE; + next = buf->output_buf; + size = buf->alloc_size; *next = 0; @@ -510,7 +511,7 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) } spin_unlock_irqrestore (&ehci->lock, flags); - return strlen(buf->page); + return strlen(buf->output_buf); } #define DBG_SCHED_LIMIT 64 @@ -531,8 +532,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) hcd = bus_to_hcd(buf->bus); ehci = hcd_to_ehci (hcd); - next = buf->page; - size = PAGE_SIZE; + next = buf->output_buf; + size = buf->alloc_size; temp = scnprintf (next, size, "size = %d\n", ehci->periodic_size); size -= temp; @@ -568,14 +569,16 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) for (temp = 0; temp < seen_count; temp++) { if (seen [temp].ptr != p.ptr) continue; - if (p.qh->qh_next.ptr) + if (p.qh->qh_next.ptr) { temp = scnprintf (next, size, " ..."); - p.ptr = NULL; + size -= temp; + next += temp; + } break; } /* show more info the first time around */ - if (temp == seen_count && p.ptr) { + if (temp == seen_count) { u32 scratch = hc32_to_cpup(ehci, &p.qh->hw_info1); struct ehci_qtd *qtd; @@ -649,7 +652,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) spin_unlock_irqrestore (&ehci->lock, flags); kfree (seen); - return PAGE_SIZE - size; + return buf->alloc_size - size; } #undef DBG_SCHED_LIMIT @@ -665,18 +668,18 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) hcd = bus_to_hcd(buf->bus); ehci = hcd_to_ehci (hcd); - next = buf->page; - size = PAGE_SIZE; + next = buf->output_buf; + size = buf->alloc_size; spin_lock_irqsave (&ehci->lock, flags); if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) { size = scnprintf (next, size, - "bus %s, device %s (driver " DRIVER_VERSION ")\n" + "bus %s, device %s\n" "%s\n" "SUSPENDED (no register access)\n", hcd->self.controller->bus->name, - hcd->self.controller->bus_id, + dev_name(hcd->self.controller), hcd->product_desc); goto done; } @@ -684,11 +687,11 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) /* Capability Registers */ i = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase)); temp = scnprintf (next, size, - "bus %s, device %s (driver " DRIVER_VERSION ")\n" + "bus %s, device %s\n" "%s\n" "EHCI %x.%02x, hcd state %d\n", hcd->self.controller->bus->name, - hcd->self.controller->bus_id, + dev_name(hcd->self.controller), hcd->product_desc, i >> 8, i & 0x0ff, hcd->state); size -= temp; @@ -808,7 +811,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) done: spin_unlock_irqrestore (&ehci->lock, flags); - return PAGE_SIZE - size; + return buf->alloc_size - size; } static struct debug_buffer *alloc_buffer(struct usb_bus *bus, @@ -822,6 +825,7 @@ static struct debug_buffer *alloc_buffer(struct usb_bus *bus, buf->bus = bus; buf->fill_func = fill_func; mutex_init(&buf->mutex); + buf->alloc_size = PAGE_SIZE; } return buf; @@ -831,10 +835,10 @@ static int fill_buffer(struct debug_buffer *buf) { int ret = 0; - if (!buf->page) - buf->page = (char *)get_zeroed_page(GFP_KERNEL); + if (!buf->output_buf) + buf->output_buf = (char *)vmalloc(buf->alloc_size); - if (!buf->page) { + if (!buf->output_buf) { ret = -ENOMEM; goto out; } @@ -867,7 +871,7 @@ static ssize_t debug_output(struct file *file, char __user *user_buf, mutex_unlock(&buf->mutex); ret = simple_read_from_buffer(user_buf, len, offset, - buf->page, buf->count); + buf->output_buf, buf->count); out: return ret; @@ -879,8 +883,8 @@ static int debug_close(struct inode *inode, struct file *file) struct debug_buffer *buf = file->private_data; if (buf) { - if (buf->page) - free_page((unsigned long)buf->page); + if (buf->output_buf) + vfree(buf->output_buf); kfree(buf); } @@ -895,10 +899,14 @@ static int debug_async_open(struct inode *inode, struct file *file) static int debug_periodic_open(struct inode *inode, struct file *file) { - file->private_data = alloc_buffer(inode->i_private, - fill_periodic_buffer); + struct debug_buffer *buf; + buf = alloc_buffer(inode->i_private, fill_periodic_buffer); + if (!buf) + return -ENOMEM; - return file->private_data ? 0 : -ENOMEM; + buf->alloc_size = (sizeof(void *) == 4 ? 6 : 8)*PAGE_SIZE; + file->private_data = buf; + return 0; } static int debug_registers_open(struct inode *inode, struct file *file) diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 7370d6187c64..01c3da34f678 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -56,7 +56,7 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data; if (!pdata) { dev_err(&pdev->dev, - "No platform data for %s.\n", pdev->dev.bus_id); + "No platform data for %s.\n", dev_name(&pdev->dev)); return -ENODEV; } @@ -69,7 +69,7 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, (pdata->operating_mode == FSL_USB2_DR_OTG))) { dev_err(&pdev->dev, "Non Host Mode configured for %s. Wrong driver linked.\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); return -ENODEV; } @@ -77,12 +77,12 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, if (!res) { dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); return -ENODEV; } irq = res->start; - hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto err1; @@ -92,7 +92,7 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, if (!res) { dev_err(&pdev->dev, "Found HC with no register addr. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); retval = -ENODEV; goto err2; } @@ -132,7 +132,7 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, err2: usb_put_hcd(hcd); err1: - dev_err(&pdev->dev, "init %s fail, %d\n", pdev->dev.bus_id, retval); + dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval); return retval; } @@ -230,8 +230,13 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) /* put controller in host mode. */ ehci_writel(ehci, 0x00000003, non_ehci + FSL_SOC_USB_USBMODE); +#ifdef CONFIG_PPC_85xx + 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); +#endif out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); } diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 369a8a5ea7bb..15a803b206b8 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -24,6 +24,7 @@ #include <linux/ioport.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/vmalloc.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/timer.h> @@ -59,7 +60,6 @@ * providing early devices for those host controllers to talk to! */ -#define DRIVER_VERSION "10 Dec 2004" #define DRIVER_AUTHOR "David Brownell" #define DRIVER_DESC "USB 2.0 'Enhanced' Host Controller (EHCI) Driver" @@ -84,7 +84,7 @@ static const char hcd_name [] = "ehci_hcd"; #define EHCI_IAA_MSECS 10 /* arbitrary */ #define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */ #define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */ -#define EHCI_SHRINK_JIFFIES (HZ/200) /* async qh unlink delay */ +#define EHCI_SHRINK_FRAMES 5 /* async qh unlink delay */ /* Initial IRQ latency: faster than hw default */ static int log2_irq_thresh = 0; // 0 to 6 @@ -145,16 +145,6 @@ static int handshake (struct ehci_hcd *ehci, void __iomem *ptr, return -ETIMEDOUT; } -static int handshake_on_error_set_halt(struct ehci_hcd *ehci, void __iomem *ptr, - u32 mask, u32 done, int usec) -{ - int error = handshake(ehci, ptr, mask, done, usec); - if (error) - ehci_to_hcd(ehci)->state = HC_STATE_HALT; - - return error; -} - /* force HC to halt state from unknown (EHCI spec section 2.3) */ static int ehci_halt (struct ehci_hcd *ehci) { @@ -173,6 +163,22 @@ static int ehci_halt (struct ehci_hcd *ehci) STS_HALT, STS_HALT, 16 * 125); } +static int handshake_on_error_set_halt(struct ehci_hcd *ehci, void __iomem *ptr, + u32 mask, u32 done, int usec) +{ + int error; + + error = handshake(ehci, ptr, mask, done, usec); + if (error) { + ehci_halt(ehci); + ehci_to_hcd(ehci)->state = HC_STATE_HALT; + ehci_err(ehci, "force halt; handhake %p %08x %08x -> %d\n", + ptr, mask, done, error); + } + + return error; +} + /* put TDI/ARC silicon into EHCI mode */ static void tdi_reset (struct ehci_hcd *ehci) { @@ -614,9 +620,9 @@ static int ehci_run (struct usb_hcd *hcd) temp = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase)); ehci_info (ehci, - "USB %x.%x started, EHCI %x.%02x, driver %s%s\n", + "USB %x.%x started, EHCI %x.%02x%s\n", ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), - temp >> 8, temp & 0xff, DRIVER_VERSION, + temp >> 8, temp & 0xff, ignore_oc ? ", overcurrent ignored" : ""); ehci_writel(ehci, INTR_MASK, @@ -700,7 +706,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) pcd_status = status; /* resume root hub? */ - if (!(ehci_readl(ehci, &ehci->regs->command) & CMD_RUN)) + if (!(cmd & CMD_RUN)) usb_hcd_resume_root_hub(hcd); while (i--) { @@ -709,8 +715,11 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) if (pstatus & PORT_OWNER) continue; - if (!(pstatus & PORT_RESUME) - || ehci->reset_done [i] != 0) + if (!(test_bit(i, &ehci->suspended_ports) && + ((pstatus & PORT_RESUME) || + !(pstatus & PORT_SUSPEND)) && + (pstatus & PORT_PE) && + ehci->reset_done[i] == 0)) continue; /* start 20 msec resume signaling from this port, @@ -725,9 +734,8 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* PCI errors [4.15.2.4] */ if (unlikely ((status & STS_FATAL) != 0)) { - dbg_cmd (ehci, "fatal", ehci_readl(ehci, - &ehci->regs->command)); - dbg_status (ehci, "fatal", status); + dbg_cmd(ehci, "fatal", cmd); + dbg_status(ehci, "fatal", status); if (status & STS_HALT) { ehci_err (ehci, "fatal error\n"); dead: @@ -988,9 +996,7 @@ static int ehci_get_frame (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC - -MODULE_DESCRIPTION (DRIVER_INFO); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR (DRIVER_AUTHOR); MODULE_LICENSE ("GPL"); @@ -1014,11 +1020,6 @@ MODULE_LICENSE ("GPL"); #define PS3_SYSTEM_BUS_DRIVER ps3_ehci_driver #endif -#if defined(CONFIG_440EPX) && !defined(CONFIG_PPC_MERGE) -#include "ehci-ppc-soc.c" -#define PLATFORM_DRIVER ehci_ppc_soc_driver -#endif - #ifdef CONFIG_USB_EHCI_HCD_PPC_OF #include "ehci-ppc-of.c" #define OF_PLATFORM_DRIVER ehci_hcd_ppc_of_driver @@ -1043,6 +1044,16 @@ static int __init ehci_hcd_init(void) { int retval = 0; + if (usb_disabled()) + return -ENODEV; + + printk(KERN_INFO "%s: " DRIVER_DESC "\n", hcd_name); + set_bit(USB_EHCI_LOADED, &usb_hcds_loaded); + if (test_bit(USB_UHCI_LOADED, &usb_hcds_loaded) || + test_bit(USB_OHCI_LOADED, &usb_hcds_loaded)) + printk(KERN_WARNING "Warning! ehci_hcd should always be loaded" + " before uhci_hcd and ohci_hcd, not after\n"); + pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd sitd %Zd\n", hcd_name, sizeof(struct ehci_qh), sizeof(struct ehci_qtd), @@ -1050,8 +1061,10 @@ static int __init ehci_hcd_init(void) #ifdef DEBUG ehci_debug_root = debugfs_create_dir("ehci", NULL); - if (!ehci_debug_root) - return -ENOENT; + if (!ehci_debug_root) { + retval = -ENOENT; + goto err_debug; + } #endif #ifdef PLATFORM_DRIVER @@ -1098,7 +1111,9 @@ clean0: #ifdef DEBUG debugfs_remove(ehci_debug_root); ehci_debug_root = NULL; +err_debug: #endif + clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); return retval; } module_init(ehci_hcd_init); @@ -1120,6 +1135,7 @@ static void __exit ehci_hcd_cleanup(void) #ifdef DEBUG debugfs_remove(ehci_debug_root); #endif + clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); } module_exit(ehci_hcd_cleanup); diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 740835bb8575..218f9660d7ee 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -236,10 +236,8 @@ static int ehci_bus_resume (struct usb_hcd *hcd) temp = ehci_readl(ehci, &ehci->regs->port_status [i]); temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS); if (test_bit(i, &ehci->bus_suspended) && - (temp & PORT_SUSPEND)) { - ehci->reset_done [i] = jiffies + msecs_to_jiffies (20); + (temp & PORT_SUSPEND)) temp |= PORT_RESUME; - } ehci_writel(ehci, temp, &ehci->regs->port_status [i]); } i = HCS_N_PORTS (ehci->hcs_params); @@ -482,10 +480,9 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) * controller by the user. */ - if ((temp & mask) != 0 - || ((temp & PORT_RESUME) != 0 - && time_after_eq(jiffies, - ehci->reset_done[i]))) { + if ((temp & mask) != 0 || test_bit(i, &ehci->port_c_suspend) + || (ehci->reset_done[i] && time_after_eq( + jiffies, ehci->reset_done[i]))) { if (i < 7) buf [0] |= 1 << (i + 1); else @@ -688,6 +685,7 @@ static int ehci_hub_control ( /* resume completed? */ else if (time_after_eq(jiffies, ehci->reset_done[wIndex])) { + clear_bit(wIndex, &ehci->suspended_ports); set_bit(wIndex, &ehci->port_c_suspend); ehci->reset_done[wIndex] = 0; @@ -734,6 +732,9 @@ static int ehci_hub_control ( ehci_readl(ehci, status_reg)); } + if (!(temp & (PORT_RESUME|PORT_RESET))) + ehci->reset_done[wIndex] = 0; + /* transfer dedicated ports to the companion hc */ if ((temp & PORT_CONNECT) && test_bit(wIndex, &ehci->companion_ports)) { @@ -757,8 +758,17 @@ static int ehci_hub_control ( } if (temp & PORT_PE) status |= 1 << USB_PORT_FEAT_ENABLE; - if (temp & (PORT_SUSPEND|PORT_RESUME)) + + /* maybe the port was unsuspended without our knowledge */ + if (temp & (PORT_SUSPEND|PORT_RESUME)) { status |= 1 << USB_PORT_FEAT_SUSPEND; + } else if (test_bit(wIndex, &ehci->suspended_ports)) { + clear_bit(wIndex, &ehci->suspended_ports); + ehci->reset_done[wIndex] = 0; + if (temp & PORT_PE) + set_bit(wIndex, &ehci->port_c_suspend); + } + if (temp & PORT_OC) status |= 1 << USB_PORT_FEAT_OVER_CURRENT; if (temp & PORT_RESET) @@ -803,6 +813,7 @@ static int ehci_hub_control ( || (temp & PORT_RESET) != 0) goto error; ehci_writel(ehci, temp | PORT_SUSPEND, status_reg); + set_bit(wIndex, &ehci->suspended_ports); break; case USB_PORT_FEAT_POWER: if (HCS_PPC (ehci->hcs_params)) diff --git a/drivers/usb/host/ehci-ixp4xx.c b/drivers/usb/host/ehci-ixp4xx.c index 9d042f220097..9c32063a0c2f 100644 --- a/drivers/usb/host/ehci-ixp4xx.c +++ b/drivers/usb/host/ehci-ixp4xx.c @@ -1,7 +1,7 @@ /* * IXP4XX EHCI Host Controller Driver * - * Author: Vladimir Barinov <vbarinov@ru.mvista.com> + * Author: Vladimir Barinov <vbarinov@embeddedalley.com> * * Based on "ehci-fsl.c" by Randy Vinson <rvinson@mvista.com> * @@ -77,12 +77,12 @@ static int ixp4xx_ehci_probe(struct platform_device *pdev) if (!res) { dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); return -ENODEV; } irq = res->start; - hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto fail_create_hcd; @@ -92,7 +92,7 @@ static int ixp4xx_ehci_probe(struct platform_device *pdev) if (!res) { dev_err(&pdev->dev, "Found HC with no register addr. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); retval = -ENODEV; goto fail_request_resource; } @@ -126,7 +126,7 @@ fail_ioremap: fail_request_resource: usb_put_hcd(hcd); fail_create_hcd: - dev_err(&pdev->dev, "init %s fail, %d\n", pdev->dev.bus_id, retval); + dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval); return retval; } diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index ab625f0ba1d9..5416cf969005 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -12,7 +12,7 @@ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/mbus.h> -#include <asm/plat-orion/ehci-orion.h> +#include <plat/ehci-orion.h> #define rdl(off) __raw_readl(hcd->regs + (off)) #define wrl(off, val) __raw_writel((val), hcd->regs + (off)) @@ -204,7 +204,7 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev) if (irq <= 0) { dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); err = -ENODEV; goto err1; } @@ -213,7 +213,7 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev) if (!res) { dev_err(&pdev->dev, "Found HC with no register addr. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); err = -ENODEV; goto err1; } @@ -233,7 +233,7 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev) } hcd = usb_create_hcd(&ehci_orion_hc_driver, - &pdev->dev, pdev->dev.bus_id); + &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { err = -ENOMEM; goto err3; @@ -276,7 +276,7 @@ err2: release_mem_region(res->start, res->end - res->start + 1); err1: dev_err(&pdev->dev, "init %s fail, %d\n", - pdev->dev.bus_id, err); + dev_name(&pdev->dev), err); return err; } diff --git a/drivers/usb/host/ehci-ppc-soc.c b/drivers/usb/host/ehci-ppc-soc.c deleted file mode 100644 index 529590eb4037..000000000000 --- a/drivers/usb/host/ehci-ppc-soc.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * EHCI HCD (Host Controller Driver) for USB. - * - * (C) Copyright 2006-2007 Stefan Roese <sr@denx.de>, DENX Software Engineering - * - * Bus Glue for PPC On-Chip EHCI driver - * Tested on AMCC 440EPx - * - * Based on "ehci-au1xxx.c" by K.Boge <karsten.boge@amd.com> - * - * This file is licenced under the GPL. - */ - -#include <linux/platform_device.h> - -extern int usb_disabled(void); - -/* called during probe() after chip reset completes */ -static int ehci_ppc_soc_setup(struct usb_hcd *hcd) -{ - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - int retval; - - retval = ehci_halt(ehci); - if (retval) - return retval; - - retval = ehci_init(hcd); - if (retval) - return retval; - - ehci->sbrn = 0x20; - return ehci_reset(ehci); -} - -/** - * usb_ehci_ppc_soc_probe - initialize PPC-SoC-based HCDs - * Context: !in_interrupt() - * - * Allocates basic resources for this USB host controller, and - * then invokes the start() method for the HCD associated with it - * through the hotplug entry's driver_data. - * - */ -int usb_ehci_ppc_soc_probe(const struct hc_driver *driver, - struct usb_hcd **hcd_out, - struct platform_device *dev) -{ - int retval; - struct usb_hcd *hcd; - struct ehci_hcd *ehci; - - if (dev->resource[1].flags != IORESOURCE_IRQ) { - pr_debug("resource[1] is not IORESOURCE_IRQ"); - retval = -ENOMEM; - } - hcd = usb_create_hcd(driver, &dev->dev, "PPC-SOC EHCI"); - if (!hcd) - return -ENOMEM; - hcd->rsrc_start = dev->resource[0].start; - hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1; - - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_debug("request_mem_region failed"); - retval = -EBUSY; - goto err1; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - pr_debug("ioremap failed"); - retval = -ENOMEM; - goto err2; - } - - ehci = hcd_to_ehci(hcd); - ehci->big_endian_mmio = 1; - ehci->big_endian_desc = 1; - ehci->caps = hcd->regs; - ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); - - /* cache this readonly data; minimize chip reads */ - ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); - -#if defined(CONFIG_440EPX) - /* - * 440EPx Errata USBH_3 - * Fix: Enable Break Memory Transfer (BMT) in INSNREG3 - */ - out_be32((void *)((ulong)(&ehci->regs->command) + 0x8c), (1 << 0)); - ehci_dbg(ehci, "Break Memory Transfer (BMT) has beed enabled!\n"); -#endif - - retval = usb_add_hcd(hcd, dev->resource[1].start, IRQF_DISABLED); - if (retval == 0) - return retval; - - iounmap(hcd->regs); -err2: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -err1: - usb_put_hcd(hcd); - return retval; -} - -/* may be called without controller electrically present */ -/* may be called with controller, bus, and devices active */ - -/** - * usb_ehci_hcd_ppc_soc_remove - shutdown processing for PPC-SoC-based HCDs - * @dev: USB Host Controller being removed - * Context: !in_interrupt() - * - * Reverses the effect of usb_ehci_hcd_ppc_soc_probe(), first invoking - * the HCD's stop() method. It is always called from a thread - * context, normally "rmmod", "apmd", or something similar. - * - */ -void usb_ehci_ppc_soc_remove(struct usb_hcd *hcd, struct platform_device *dev) -{ - usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - usb_put_hcd(hcd); -} - -static const struct hc_driver ehci_ppc_soc_hc_driver = { - .description = hcd_name, - .product_desc = "PPC-SOC EHCI", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - /* - * basic lifecycle operations - */ - .reset = ehci_ppc_soc_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, -}; - -static int ehci_hcd_ppc_soc_drv_probe(struct platform_device *pdev) -{ - struct usb_hcd *hcd = NULL; - int ret; - - pr_debug("In ehci_hcd_ppc_soc_drv_probe\n"); - - if (usb_disabled()) - return -ENODEV; - - /* FIXME we only want one one probe() not two */ - ret = usb_ehci_ppc_soc_probe(&ehci_ppc_soc_hc_driver, &hcd, pdev); - return ret; -} - -static int ehci_hcd_ppc_soc_drv_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - /* FIXME we only want one one remove() not two */ - usb_ehci_ppc_soc_remove(hcd, pdev); - return 0; -} - -MODULE_ALIAS("platform:ppc-soc-ehci"); -static struct platform_driver ehci_ppc_soc_driver = { - .probe = ehci_hcd_ppc_soc_drv_probe, - .remove = ehci_hcd_ppc_soc_drv_remove, - .shutdown = usb_hcd_platform_shutdown, - .driver = { - .name = "ppc-soc-ehci", - } -}; diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 37e6abeb794c..0eba894bcb01 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -128,7 +128,7 @@ static int ps3_ehci_probe(struct ps3_system_bus_device *dev) dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ - hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev->core.bus_id); + hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core)); if (!hcd) { dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index b85b54160cda..3712b925b315 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -932,7 +932,7 @@ static struct ehci_qh *qh_append_tds ( list_del (&qtd->qtd_list); list_add (&dummy->qtd_list, qtd_list); - __list_splice (qtd_list, qh->qtd_list.prev); + list_splice_tail(qtd_list, &qh->qtd_list); ehci_qtd_init(ehci, qtd, qtd->qtd_dma); qh->dummy = qtd; @@ -1116,8 +1116,7 @@ static void scan_async (struct ehci_hcd *ehci) struct ehci_qh *qh; enum ehci_timer_action action = TIMER_IO_WATCHDOG; - if (!++(ehci->stamp)) - ehci->stamp++; + ehci->stamp = ehci_readl(ehci, &ehci->regs->frame_index); timer_action_done (ehci, TIMER_ASYNC_SHRINK); rescan: qh = ehci->async->qh_next.qh; @@ -1142,18 +1141,20 @@ rescan: } } - /* unlink idle entries, reducing HC PCI usage as well + /* unlink idle entries, reducing DMA usage as well * as HCD schedule-scanning costs. delay for any qh * we just scanned, there's a not-unusual case that it * doesn't stay idle for long. * (plus, avoids some kind of re-activation race.) */ - if (list_empty (&qh->qtd_list)) { - if (qh->stamp == ehci->stamp) + if (list_empty(&qh->qtd_list) + && qh->qh_state == QH_STATE_LINKED) { + if (!ehci->reclaim + && ((ehci->stamp - qh->stamp) & 0x1fff) + >= (EHCI_SHRINK_FRAMES * 8)) + start_unlink_async(ehci, qh); + else action = TIMER_ASYNC_SHRINK; - else if (!ehci->reclaim - && qh->qh_state == QH_STATE_LINKED) - start_unlink_async (ehci, qh); } qh = qh->qh_next.qh; diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index b7853c8bac0f..4a0c5a78b2ed 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -437,6 +437,9 @@ static int enable_periodic (struct ehci_hcd *ehci) u32 cmd; int status; + if (ehci->periodic_sched++) + return 0; + /* did clearing PSE did take effect yet? * takes effect only at frame boundaries... */ @@ -461,6 +464,9 @@ static int disable_periodic (struct ehci_hcd *ehci) u32 cmd; int status; + if (--ehci->periodic_sched) + return 0; + /* did setting PSE not take effect yet? * takes effect only at frame boundaries... */ @@ -544,13 +550,10 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) : (qh->usecs * 8); /* maybe enable periodic schedule processing */ - if (!ehci->periodic_sched++) - return enable_periodic (ehci); - - return 0; + return enable_periodic(ehci); } -static void qh_unlink_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) +static int qh_unlink_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) { unsigned i; unsigned period; @@ -586,9 +589,7 @@ static void qh_unlink_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) qh_put (qh); /* maybe turn off periodic schedule */ - ehci->periodic_sched--; - if (!ehci->periodic_sched) - (void) disable_periodic (ehci); + return disable_periodic(ehci); } static void intr_deschedule (struct ehci_hcd *ehci, struct ehci_qh *qh) @@ -1562,9 +1563,7 @@ itd_link_urb ( urb->hcpriv = NULL; timer_action (ehci, TIMER_IO_WATCHDOG); - if (unlikely (!ehci->periodic_sched++)) - return enable_periodic (ehci); - return 0; + return enable_periodic(ehci); } #define ISO_ERRS (EHCI_ISOC_BUF_ERR | EHCI_ISOC_BABBLE | EHCI_ISOC_XACTERR) @@ -1642,7 +1641,7 @@ itd_complete ( ehci_urb_done(ehci, urb, 0); retval = true; urb = NULL; - ehci->periodic_sched--; + (void) disable_periodic(ehci); ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs--; if (unlikely (list_empty (&stream->td_list))) { @@ -1951,9 +1950,7 @@ sitd_link_urb ( urb->hcpriv = NULL; timer_action (ehci, TIMER_IO_WATCHDOG); - if (!ehci->periodic_sched++) - return enable_periodic (ehci); - return 0; + return enable_periodic(ehci); } /*-------------------------------------------------------------------------*/ @@ -2019,7 +2016,7 @@ sitd_complete ( ehci_urb_done(ehci, urb, 0); retval = true; urb = NULL; - ehci->periodic_sched--; + (void) disable_periodic(ehci); ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs--; if (list_empty (&stream->td_list)) { @@ -2243,8 +2240,7 @@ restart: if (unlikely (modified)) { if (likely(ehci->periodic_sched > 0)) goto restart; - /* maybe we can short-circuit this scan! */ - disable_periodic(ehci); + /* short-circuit this scan */ now_uframe = clock; break; } diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 90245fd8bac4..b11798d17ae5 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -99,6 +99,8 @@ struct ehci_hcd { /* one per controller */ owned by the companion during a bus suspend */ unsigned long port_c_suspend; /* which ports have the change-suspend feature turned on */ + unsigned long suspended_ports; /* which ports are + suspended */ /* per-HC memory pools (could be per-bus, but ...) */ struct dma_pool *qh_pool; /* qh per active urb */ @@ -181,14 +183,16 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) * the async ring; just the I/O watchdog. Note that if a * SHRINK were pending, OFF would never be requested. */ - if (timer_pending(&ehci->watchdog) - && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF)) - & ehci->actions)) - return; + enum ehci_timer_action oldactions = ehci->actions; if (!test_and_set_bit (action, &ehci->actions)) { unsigned long t; + if (timer_pending(&ehci->watchdog) + && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF)) + & oldactions)) + return; + switch (action) { case TIMER_IO_WATCHDOG: t = EHCI_IO_JIFFIES; @@ -198,152 +202,19 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) break; // case TIMER_ASYNC_SHRINK: default: - t = EHCI_SHRINK_JIFFIES; + /* add a jiffie since we synch against the + * 8 KHz uframe counter. + */ + t = DIV_ROUND_UP(EHCI_SHRINK_FRAMES * HZ, 1000) + 1; break; } - mod_timer(&ehci->watchdog, t + jiffies); + mod_timer(&ehci->watchdog, round_jiffies(t + jiffies)); } } /*-------------------------------------------------------------------------*/ -/* EHCI register interface, corresponds to EHCI Revision 0.95 specification */ - -/* Section 2.2 Host Controller Capability Registers */ -struct ehci_caps { - /* these fields are specified as 8 and 16 bit registers, - * but some hosts can't perform 8 or 16 bit PCI accesses. - */ - u32 hc_capbase; -#define HC_LENGTH(p) (((p)>>00)&0x00ff) /* bits 7:0 */ -#define HC_VERSION(p) (((p)>>16)&0xffff) /* bits 31:16 */ - u32 hcs_params; /* HCSPARAMS - offset 0x4 */ -#define HCS_DEBUG_PORT(p) (((p)>>20)&0xf) /* bits 23:20, debug port? */ -#define HCS_INDICATOR(p) ((p)&(1 << 16)) /* true: has port indicators */ -#define HCS_N_CC(p) (((p)>>12)&0xf) /* bits 15:12, #companion HCs */ -#define HCS_N_PCC(p) (((p)>>8)&0xf) /* bits 11:8, ports per CC */ -#define HCS_PORTROUTED(p) ((p)&(1 << 7)) /* true: port routing */ -#define HCS_PPC(p) ((p)&(1 << 4)) /* true: port power control */ -#define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */ - - u32 hcc_params; /* HCCPARAMS - offset 0x8 */ -#define HCC_EXT_CAPS(p) (((p)>>8)&0xff) /* for pci extended caps */ -#define HCC_ISOC_CACHE(p) ((p)&(1 << 7)) /* true: can cache isoc frame */ -#define HCC_ISOC_THRES(p) (((p)>>4)&0x7) /* bits 6:4, uframes cached */ -#define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */ -#define HCC_PGM_FRAMELISTLEN(p) ((p)&(1 << 1)) /* true: periodic_size changes*/ -#define HCC_64BIT_ADDR(p) ((p)&(1)) /* true: can use 64-bit addr */ - u8 portroute [8]; /* nibbles for routing - offset 0xC */ -} __attribute__ ((packed)); - - -/* Section 2.3 Host Controller Operational Registers */ -struct ehci_regs { - - /* USBCMD: offset 0x00 */ - u32 command; -/* 23:16 is r/w intr rate, in microframes; default "8" == 1/msec */ -#define CMD_PARK (1<<11) /* enable "park" on async qh */ -#define CMD_PARK_CNT(c) (((c)>>8)&3) /* how many transfers to park for */ -#define CMD_LRESET (1<<7) /* partial reset (no ports, etc) */ -#define CMD_IAAD (1<<6) /* "doorbell" interrupt async advance */ -#define CMD_ASE (1<<5) /* async schedule enable */ -#define CMD_PSE (1<<4) /* periodic schedule enable */ -/* 3:2 is periodic frame list size */ -#define CMD_RESET (1<<1) /* reset HC not bus */ -#define CMD_RUN (1<<0) /* start/stop HC */ - - /* USBSTS: offset 0x04 */ - u32 status; -#define STS_ASS (1<<15) /* Async Schedule Status */ -#define STS_PSS (1<<14) /* Periodic Schedule Status */ -#define STS_RECL (1<<13) /* Reclamation */ -#define STS_HALT (1<<12) /* Not running (any reason) */ -/* some bits reserved */ - /* these STS_* flags are also intr_enable bits (USBINTR) */ -#define STS_IAA (1<<5) /* Interrupted on async advance */ -#define STS_FATAL (1<<4) /* such as some PCI access errors */ -#define STS_FLR (1<<3) /* frame list rolled over */ -#define STS_PCD (1<<2) /* port change detect */ -#define STS_ERR (1<<1) /* "error" completion (overflow, ...) */ -#define STS_INT (1<<0) /* "normal" completion (short, ...) */ - - /* USBINTR: offset 0x08 */ - u32 intr_enable; - - /* FRINDEX: offset 0x0C */ - u32 frame_index; /* current microframe number */ - /* CTRLDSSEGMENT: offset 0x10 */ - u32 segment; /* address bits 63:32 if needed */ - /* PERIODICLISTBASE: offset 0x14 */ - u32 frame_list; /* points to periodic list */ - /* ASYNCLISTADDR: offset 0x18 */ - u32 async_next; /* address of next async queue head */ - - u32 reserved [9]; - - /* CONFIGFLAG: offset 0x40 */ - u32 configured_flag; -#define FLAG_CF (1<<0) /* true: we'll support "high speed" */ - - /* PORTSC: offset 0x44 */ - u32 port_status [0]; /* up to N_PORTS */ -/* 31:23 reserved */ -#define PORT_WKOC_E (1<<22) /* wake on overcurrent (enable) */ -#define PORT_WKDISC_E (1<<21) /* wake on disconnect (enable) */ -#define PORT_WKCONN_E (1<<20) /* wake on connect (enable) */ -/* 19:16 for port testing */ -#define PORT_LED_OFF (0<<14) -#define PORT_LED_AMBER (1<<14) -#define PORT_LED_GREEN (2<<14) -#define PORT_LED_MASK (3<<14) -#define PORT_OWNER (1<<13) /* true: companion hc owns this port */ -#define PORT_POWER (1<<12) /* true: has power (see PPC) */ -#define PORT_USB11(x) (((x)&(3<<10))==(1<<10)) /* USB 1.1 device */ -/* 11:10 for detecting lowspeed devices (reset vs release ownership) */ -/* 9 reserved */ -#define PORT_RESET (1<<8) /* reset port */ -#define PORT_SUSPEND (1<<7) /* suspend port */ -#define PORT_RESUME (1<<6) /* resume it */ -#define PORT_OCC (1<<5) /* over current change */ -#define PORT_OC (1<<4) /* over current active */ -#define PORT_PEC (1<<3) /* port enable change */ -#define PORT_PE (1<<2) /* port enable */ -#define PORT_CSC (1<<1) /* connect status change */ -#define PORT_CONNECT (1<<0) /* device connected */ -#define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC) -} __attribute__ ((packed)); - -#define USBMODE 0x68 /* USB Device mode */ -#define USBMODE_SDIS (1<<3) /* Stream disable */ -#define USBMODE_BE (1<<2) /* BE/LE endianness select */ -#define USBMODE_CM_HC (3<<0) /* host controller mode */ -#define USBMODE_CM_IDLE (0<<0) /* idle state */ - -/* Appendix C, Debug port ... intended for use with special "debug devices" - * that can help if there's no serial console. (nonstandard enumeration.) - */ -struct ehci_dbg_port { - u32 control; -#define DBGP_OWNER (1<<30) -#define DBGP_ENABLED (1<<28) -#define DBGP_DONE (1<<16) -#define DBGP_INUSE (1<<10) -#define DBGP_ERRCODE(x) (((x)>>7)&0x07) -# define DBGP_ERR_BAD 1 -# define DBGP_ERR_SIGNAL 2 -#define DBGP_ERROR (1<<6) -#define DBGP_GO (1<<5) -#define DBGP_OUT (1<<4) -#define DBGP_LEN(x) (((x)>>0)&0x0f) - u32 pids; -#define DBGP_PID_GET(x) (((x)>>16)&0xff) -#define DBGP_PID_SET(data,tok) (((data)<<8)|(tok)) - u32 data03; - u32 data47; - u32 address; -#define DBGP_EPADDR(dev,ep) (((dev)<<8)|(ep)) -} __attribute__ ((packed)); +#include <linux/usb/ehci_def.h> /*-------------------------------------------------------------------------*/ @@ -737,16 +608,7 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc) /* * Big-endian read/write functions are arch-specific. * Other arches can be added if/when they're needed. - * - * REVISIT: arch/powerpc now has readl/writel_be, so the - * definition below can die once the 4xx support is - * finally ported over. */ -#if defined(CONFIG_PPC) && !defined(CONFIG_PPC_MERGE) -#define readl_be(addr) in_be32((__force unsigned *)addr) -#define writel_be(val, addr) out_be32((__force unsigned *)addr, val) -#endif - #if defined(CONFIG_ARM) && defined(CONFIG_ARCH_IXP4XX) #define readl_be(addr) __raw_readl((__force unsigned *)addr) #define writel_be(val, addr) __raw_writel(val, (__force unsigned *)addr) diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c new file mode 100644 index 000000000000..64be4d88df11 --- /dev/null +++ b/drivers/usb/host/hwa-hc.c @@ -0,0 +1,925 @@ +/* + * Host Wire Adapter: + * Driver glue, HWA-specific functions, bridges to WAHC and WUSBHC + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * The HWA driver is a simple layer that forwards requests to the WAHC + * (Wire Adater Host Controller) or WUSBHC (Wireless USB Host + * Controller) layers. + * + * Host Wire Adapter is the 'WUSB 1.0 standard' name for Wireless-USB + * Host Controller that is connected to your system via USB (a USB + * dongle that implements a USB host...). There is also a Device Wired + * Adaptor, DWA (Wireless USB hub) that uses the same mechanism for + * transferring data (it is after all a USB host connected via + * Wireless USB), we have a common layer called Wire Adapter Host + * Controller that does all the hard work. The WUSBHC (Wireless USB + * Host Controller) is the part common to WUSB Host Controllers, the + * HWA and the PCI-based one, that is implemented following the WHCI + * spec. All these layers are implemented in ../wusbcore. + * + * The main functions are hwahc_op_urb_{en,de}queue(), that pass the + * job of converting a URB to a Wire Adapter + * + * Entry points: + * + * hwahc_driver_*() Driver initialization, registration and + * teardown. + * + * hwahc_probe() New device came up, create an instance for + * it [from device enumeration]. + * + * hwahc_disconnect() Remove device instance [from device + * enumeration]. + * + * [__]hwahc_op_*() Host-Wire-Adaptor specific functions for + * starting/stopping/etc (some might be made also + * DWA). + */ +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/workqueue.h> +#include <linux/wait.h> +#include <linux/completion.h> +#include "../wusbcore/wa-hc.h" +#include "../wusbcore/wusbhc.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +struct hwahc { + struct wusbhc wusbhc; /* has to be 1st */ + struct wahc wa; + u8 buffer[16]; /* for misc usb transactions */ +}; + +/** + * FIXME should be wusbhc + * + * NOTE: we need to cache the Cluster ID because later...there is no + * way to get it :) + */ +static int __hwahc_set_cluster_id(struct hwahc *hwahc, u8 cluster_id) +{ + int result; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_CLUSTER_ID, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + cluster_id, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "Cannot set WUSB Cluster ID to 0x%02x: %d\n", + cluster_id, result); + else + wusbhc->cluster_id = cluster_id; + dev_info(dev, "Wireless USB Cluster ID set to 0x%02x\n", cluster_id); + return result; +} + +static int __hwahc_op_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_NUM_DNTS, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + interval << 8 | slots, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); +} + +/* + * Reset a WUSB host controller and wait for it to complete doing it. + * + * @usb_hcd: Pointer to WUSB Host Controller instance. + * + */ +static int hwahc_op_reset(struct usb_hcd *usb_hcd) +{ + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + wa_nep_disarm(&hwahc->wa); + result = __wa_set_feature(&hwahc->wa, WA_RESET); + if (result < 0) { + dev_err(dev, "error commanding HC to reset: %d\n", result); + goto error_unlock; + } + d_printf(3, dev, "reset: waiting for device to change state\n"); + result = __wa_wait_status(&hwahc->wa, WA_STATUS_RESETTING, 0); + if (result < 0) { + dev_err(dev, "error waiting for HC to reset: %d\n", result); + goto error_unlock; + } +error_unlock: + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; +} + +/* + * FIXME: break this function up + */ +static int hwahc_op_start(struct usb_hcd *usb_hcd) +{ + u8 addr; + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + /* Set up a Host Info WUSB Information Element */ + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + result = -ENOSPC; + mutex_lock(&wusbhc->mutex); + /* Start the numbering from the top so that the bottom + * range of the unauth addr space is used for devices, + * the top for HCs; use 0xfe - RC# */ + addr = wusb_cluster_id_get(); + if (addr == 0) + goto error_cluster_id_get; + result = __hwahc_set_cluster_id(hwahc, addr); + if (result < 0) + goto error_set_cluster_id; + + result = wa_nep_arm(&hwahc->wa, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "cannot listen to notifications: %d\n", result); + goto error_stop; + } + usb_hcd->uses_new_polling = 1; + usb_hcd->poll_rh = 1; + usb_hcd->state = HC_STATE_RUNNING; + result = 0; +out: + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; + +error_stop: + __wa_stop(&hwahc->wa); +error_set_cluster_id: + wusb_cluster_id_put(wusbhc->cluster_id); +error_cluster_id_get: + goto out; + +} + +/* + * FIXME: break this function up + */ +static int __hwahc_op_wusbhc_start(struct wusbhc *wusbhc) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + /* Set up a Host Info WUSB Information Element */ + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + result = -ENOSPC; + + result = __wa_set_feature(&hwahc->wa, WA_ENABLE); + if (result < 0) { + dev_err(dev, "error commanding HC to start: %d\n", result); + goto error_stop; + } + result = __wa_wait_status(&hwahc->wa, WA_ENABLE, WA_ENABLE); + if (result < 0) { + dev_err(dev, "error waiting for HC to start: %d\n", result); + goto error_stop; + } + result = 0; +out: + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; + +error_stop: + result = __wa_clear_feature(&hwahc->wa, WA_ENABLE); + goto out; +} + +static int hwahc_op_suspend(struct usb_hcd *usb_hcd, pm_message_t msg) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + dev_err(wusbhc->dev, "%s (%p [%p], 0x%lx) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc, *(unsigned long *) &msg); + return -ENOSYS; +} + +static int hwahc_op_resume(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc); + return -ENOSYS; +} + +static void __hwahc_op_wusbhc_stop(struct wusbhc *wusbhc) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + /* Nothing for now */ + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return; +} + +/* + * No need to abort pipes, as when this is called, all the children + * has been disconnected and that has done it [through + * usb_disable_interface() -> usb_disable_endpoint() -> + * hwahc_op_ep_disable() - >rpipe_ep_disable()]. + */ +static void hwahc_op_stop(struct usb_hcd *usb_hcd) +{ + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + wusbhc_stop(wusbhc); + wa_nep_disarm(&hwahc->wa); + result = __wa_stop(&hwahc->wa); + wusb_cluster_id_put(wusbhc->cluster_id); + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return; +} + +static int hwahc_op_get_frame_number(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc); + return -ENOSYS; +} + +static int hwahc_op_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, + gfp_t gfp) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + return wa_urb_enqueue(&hwahc->wa, urb->ep, urb, gfp); +} + +static int hwahc_op_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, + int status) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + return wa_urb_dequeue(&hwahc->wa, urb); +} + +/* + * Release resources allocated for an endpoint + * + * If there is an associated rpipe to this endpoint, go ahead and put it. + */ +static void hwahc_op_endpoint_disable(struct usb_hcd *usb_hcd, + struct usb_host_endpoint *ep) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + rpipe_ep_disable(&hwahc->wa, ep); +} + +/* + * Set the UWB MAS allocation for the WUSB cluster + * + * @stream_index: stream to use (-1 for cancelling the allocation) + * @mas: mas bitmap to use + */ +static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index, + const struct uwb_mas_bm *mas) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + u8 mas_le[UWB_NUM_MAS/8]; + + /* Set the stream index */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_STREAM_IDX, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + stream_index, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Cannot set WUSB stream index: %d\n", result); + goto out; + } + uwb_mas_bm_copy_le(mas_le, mas); + /* Set the MAS allocation */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_WUSB_MAS, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + mas_le, 32, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result); +out: + return result; +} + +/* + * Add an IE to the host's MMC + * + * @interval: See WUSB1.0[8.5.3.1] + * @repeat_cnt: See WUSB1.0[8.5.3.1] + * @handle: See WUSB1.0[8.5.3.1] + * @wuie: Pointer to the header of the WUSB IE data to add. + * MUST BE allocated in a kmalloc buffer (no stack or + * vmalloc). + * + * NOTE: the format of the WUSB IEs for MMCs are different to the + * normal MBOA MAC IEs (IE Id + Length in MBOA MAC vs. Length + + * Id in WUSB IEs). Standards...you gotta love'em. + */ +static int __hwahc_op_mmcie_add(struct wusbhc *wusbhc, u8 interval, + u8 repeat_cnt, u8 handle, + struct wuie_hdr *wuie) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_ADD_MMC_IE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + interval << 8 | repeat_cnt, + handle << 8 | iface_no, + wuie, wuie->bLength, 1000 /* FIXME: arbitrary */); +} + +/* + * Remove an IE to the host's MMC + * + * @handle: See WUSB1.0[8.5.3.1] + */ +static int __hwahc_op_mmcie_rm(struct wusbhc *wusbhc, u8 handle) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_REMOVE_MMC_IE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, handle << 8 | iface_no, + NULL, 0, 1000 /* FIXME: arbitrary */); +} + +/* + * Update device information for a given fake port + * + * @port_idx: Fake port to which device is connected (wusbhc index, not + * USB port number). + */ +static int __hwahc_op_dev_info_set(struct wusbhc *wusbhc, + struct wusb_dev *wusb_dev) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + struct hwa_dev_info *dev_info; + int ret; + + /* fill out the Device Info buffer and send it */ + dev_info = kzalloc(sizeof(struct hwa_dev_info), GFP_KERNEL); + if (!dev_info) + return -ENOMEM; + uwb_mas_bm_copy_le(dev_info->bmDeviceAvailability, + &wusb_dev->availability); + dev_info->bDeviceAddress = wusb_dev->addr; + + /* + * If the descriptors haven't been read yet, use a default PHY + * rate of 53.3 Mbit/s only. The correct value will be used + * when this will be called again as part of the + * authentication process (which occurs after the descriptors + * have been read). + */ + if (wusb_dev->wusb_cap_descr) + dev_info->wPHYRates = wusb_dev->wusb_cap_descr->wPHYRates; + else + dev_info->wPHYRates = cpu_to_le16(USB_WIRELESS_PHY_53); + + ret = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_DEV_INFO, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, wusb_dev->port_idx << 8 | iface_no, + dev_info, sizeof(struct hwa_dev_info), + 1000 /* FIXME: arbitrary */); + kfree(dev_info); + return ret; +} + +/* + * Set host's idea of which encryption (and key) method to use when + * talking to ad evice on a given port. + * + * If key is NULL, it means disable encryption for that "virtual port" + * (used when we disconnect). + */ +static int __hwahc_dev_set_key(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *key, size_t key_size, + u8 key_idx) +{ + int result = -ENOMEM; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + struct usb_key_descriptor *keyd; + size_t keyd_len; + + keyd_len = sizeof(*keyd) + key_size; + keyd = kzalloc(keyd_len, GFP_KERNEL); + if (keyd == NULL) + return -ENOMEM; + + keyd->bLength = keyd_len; + keyd->bDescriptorType = USB_DT_KEY; + keyd->tTKID[0] = (tkid >> 0) & 0xff; + keyd->tTKID[1] = (tkid >> 8) & 0xff; + keyd->tTKID[2] = (tkid >> 16) & 0xff; + memcpy(keyd->bKeyData, key, key_size); + + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_SET_DESCRIPTOR, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + USB_DT_KEY << 8 | key_idx, + port_idx << 8 | iface_no, + keyd, keyd_len, 1000 /* FIXME: arbitrary */); + + memset(keyd, 0, sizeof(*keyd)); /* clear keys etc. */ + kfree(keyd); + return result; +} + +/* + * Set host's idea of which encryption (and key) method to use when + * talking to ad evice on a given port. + * + * If key is NULL, it means disable encryption for that "virtual port" + * (used when we disconnect). + */ +static int __hwahc_op_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *key, size_t key_size) +{ + int result = -ENOMEM; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + u8 encryption_value; + + /* Tell the host which key to use to talk to the device */ + if (key) { + u8 key_idx = wusb_key_index(0, WUSB_KEY_INDEX_TYPE_PTK, + WUSB_KEY_INDEX_ORIGINATOR_HOST); + + result = __hwahc_dev_set_key(wusbhc, port_idx, tkid, + key, key_size, key_idx); + if (result < 0) + goto error_set_key; + encryption_value = wusbhc->ccm1_etd->bEncryptionValue; + } else { + /* FIXME: this should come from wusbhc->etd[UNSECURE].value */ + encryption_value = 0; + } + + /* Set the encryption type for commmunicating with the device */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_SET_ENCRYPTION, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + encryption_value, port_idx << 8 | iface_no, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(wusbhc->dev, "Can't set host's WUSB encryption for " + "port index %u to %s (value %d): %d\n", port_idx, + wusb_et_name(wusbhc->ccm1_etd->bEncryptionType), + wusbhc->ccm1_etd->bEncryptionValue, result); +error_set_key: + return result; +} + +/* + * Set host's GTK key + */ +static int __hwahc_op_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *key, size_t key_size) +{ + u8 key_idx = wusb_key_index(0, WUSB_KEY_INDEX_TYPE_GTK, + WUSB_KEY_INDEX_ORIGINATOR_HOST); + + return __hwahc_dev_set_key(wusbhc, 0, tkid, key, key_size, key_idx); +} + +/* + * Get the Wire Adapter class-specific descriptor + * + * NOTE: this descriptor comes with the big bundled configuration + * descriptor that includes the interfaces' and endpoints', so + * we just look for it in the cached copy kept by the USB stack. + * + * NOTE2: We convert LE fields to CPU order. + */ +static int wa_fill_descr(struct wahc *wa) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + char *itr; + struct usb_device *usb_dev = wa->usb_dev; + struct usb_descriptor_header *hdr; + struct usb_wa_descriptor *wa_descr; + size_t itr_size, actconfig_idx; + + actconfig_idx = (usb_dev->actconfig - usb_dev->config) / + sizeof(usb_dev->config[0]); + itr = usb_dev->rawdescriptors[actconfig_idx]; + itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); + while (itr_size >= sizeof(*hdr)) { + hdr = (struct usb_descriptor_header *) itr; + d_printf(3, dev, "Extra device descriptor: " + "type %02x/%u bytes @ %zu (%zu left)\n", + hdr->bDescriptorType, hdr->bLength, + (itr - usb_dev->rawdescriptors[actconfig_idx]), + itr_size); + if (hdr->bDescriptorType == USB_DT_WIRE_ADAPTER) + goto found; + itr += hdr->bLength; + itr_size -= hdr->bLength; + } + dev_err(dev, "cannot find Wire Adapter Class descriptor\n"); + return -ENODEV; + +found: + result = -EINVAL; + if (hdr->bLength > itr_size) { /* is it available? */ + dev_err(dev, "incomplete Wire Adapter Class descriptor " + "(%zu bytes left, %u needed)\n", + itr_size, hdr->bLength); + goto error; + } + if (hdr->bLength < sizeof(*wa->wa_descr)) { + dev_err(dev, "short Wire Adapter Class descriptor\n"); + goto error; + } + wa->wa_descr = wa_descr = (struct usb_wa_descriptor *) hdr; + /* Make LE fields CPU order */ + wa_descr->bcdWAVersion = le16_to_cpu(wa_descr->bcdWAVersion); + wa_descr->wNumRPipes = le16_to_cpu(wa_descr->wNumRPipes); + wa_descr->wRPipeMaxBlock = le16_to_cpu(wa_descr->wRPipeMaxBlock); + if (wa_descr->bcdWAVersion > 0x0100) + dev_warn(dev, "Wire Adapter v%d.%d newer than groked v1.0\n", + wa_descr->bcdWAVersion & 0xff00 >> 8, + wa_descr->bcdWAVersion & 0x00ff); + result = 0; +error: + return result; +} + +static struct hc_driver hwahc_hc_driver = { + .description = "hwa-hcd", + .product_desc = "Wireless USB HWA host controller", + .hcd_priv_size = sizeof(struct hwahc) - sizeof(struct usb_hcd), + .irq = NULL, /* FIXME */ + .flags = HCD_USB2, /* FIXME */ + .reset = hwahc_op_reset, + .start = hwahc_op_start, + .pci_suspend = hwahc_op_suspend, + .pci_resume = hwahc_op_resume, + .stop = hwahc_op_stop, + .get_frame_number = hwahc_op_get_frame_number, + .urb_enqueue = hwahc_op_urb_enqueue, + .urb_dequeue = hwahc_op_urb_dequeue, + .endpoint_disable = hwahc_op_endpoint_disable, + + .hub_status_data = wusbhc_rh_status_data, + .hub_control = wusbhc_rh_control, + .bus_suspend = wusbhc_rh_suspend, + .bus_resume = wusbhc_rh_resume, + .start_port_reset = wusbhc_rh_start_port_reset, +}; + +static int hwahc_security_create(struct hwahc *hwahc) +{ + int result; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct usb_device *usb_dev = hwahc->wa.usb_dev; + struct device *dev = &usb_dev->dev; + struct usb_security_descriptor *secd; + struct usb_encryption_descriptor *etd; + void *itr, *top; + size_t itr_size, needed, bytes; + u8 index; + char buf[64]; + + /* Find the host's security descriptors in the config descr bundle */ + index = (usb_dev->actconfig - usb_dev->config) / + sizeof(usb_dev->config[0]); + itr = usb_dev->rawdescriptors[index]; + itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); + top = itr + itr_size; + result = __usb_get_extra_descriptor(usb_dev->rawdescriptors[index], + le16_to_cpu(usb_dev->actconfig->desc.wTotalLength), + USB_DT_SECURITY, (void **) &secd); + if (result == -1) { + dev_warn(dev, "BUG? WUSB host has no security descriptors\n"); + return 0; + } + needed = sizeof(*secd); + if (top - (void *)secd < needed) { + dev_err(dev, "BUG? Not enough data to process security " + "descriptor header (%zu bytes left vs %zu needed)\n", + top - (void *) secd, needed); + return 0; + } + needed = le16_to_cpu(secd->wTotalLength); + if (top - (void *)secd < needed) { + dev_err(dev, "BUG? Not enough data to process security " + "descriptors (%zu bytes left vs %zu needed)\n", + top - (void *) secd, needed); + return 0; + } + /* Walk over the sec descriptors and store CCM1's on wusbhc */ + itr = (void *) secd + sizeof(*secd); + top = (void *) secd + le16_to_cpu(secd->wTotalLength); + index = 0; + bytes = 0; + while (itr < top) { + etd = itr; + if (top - itr < sizeof(*etd)) { + dev_err(dev, "BUG: bad host security descriptor; " + "not enough data (%zu vs %zu left)\n", + top - itr, sizeof(*etd)); + break; + } + if (etd->bLength < sizeof(*etd)) { + dev_err(dev, "BUG: bad host encryption descriptor; " + "descriptor is too short " + "(%zu vs %zu needed)\n", + (size_t)etd->bLength, sizeof(*etd)); + break; + } + itr += etd->bLength; + bytes += snprintf(buf + bytes, sizeof(buf) - bytes, + "%s (0x%02x) ", + wusb_et_name(etd->bEncryptionType), + etd->bEncryptionValue); + wusbhc->ccm1_etd = etd; + } + dev_info(dev, "supported encryption types: %s\n", buf); + if (wusbhc->ccm1_etd == NULL) { + dev_err(dev, "E: host doesn't support CCM-1 crypto\n"); + return 0; + } + /* Pretty print what we support */ + return 0; +} + +static void hwahc_security_release(struct hwahc *hwahc) +{ + /* nothing to do here so far... */ +} + +static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface) +{ + int result; + struct device *dev = &iface->dev; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct wahc *wa = &hwahc->wa; + struct usb_device *usb_dev = interface_to_usbdev(iface); + + wa->usb_dev = usb_get_dev(usb_dev); /* bind the USB device */ + wa->usb_iface = usb_get_intf(iface); + wusbhc->dev = dev; + wusbhc->uwb_rc = uwb_rc_get_by_grandpa(iface->dev.parent); + if (wusbhc->uwb_rc == NULL) { + result = -ENODEV; + dev_err(dev, "Cannot get associated UWB Host Controller\n"); + goto error_rc_get; + } + result = wa_fill_descr(wa); /* Get the device descriptor */ + if (result < 0) + goto error_fill_descriptor; + if (wa->wa_descr->bNumPorts > USB_MAXCHILDREN) { + dev_err(dev, "FIXME: USB_MAXCHILDREN too low for WUSB " + "adapter (%u ports)\n", wa->wa_descr->bNumPorts); + wusbhc->ports_max = USB_MAXCHILDREN; + } else { + wusbhc->ports_max = wa->wa_descr->bNumPorts; + } + wusbhc->mmcies_max = wa->wa_descr->bNumMMCIEs; + wusbhc->start = __hwahc_op_wusbhc_start; + wusbhc->stop = __hwahc_op_wusbhc_stop; + wusbhc->mmcie_add = __hwahc_op_mmcie_add; + wusbhc->mmcie_rm = __hwahc_op_mmcie_rm; + wusbhc->dev_info_set = __hwahc_op_dev_info_set; + wusbhc->bwa_set = __hwahc_op_bwa_set; + wusbhc->set_num_dnts = __hwahc_op_set_num_dnts; + wusbhc->set_ptk = __hwahc_op_set_ptk; + wusbhc->set_gtk = __hwahc_op_set_gtk; + result = hwahc_security_create(hwahc); + if (result < 0) { + dev_err(dev, "Can't initialize security: %d\n", result); + goto error_security_create; + } + wa->wusb = wusbhc; /* FIXME: ugly, need to fix */ + result = wusbhc_create(&hwahc->wusbhc); + if (result < 0) { + dev_err(dev, "Can't create WUSB HC structures: %d\n", result); + goto error_wusbhc_create; + } + result = wa_create(&hwahc->wa, iface); + if (result < 0) + goto error_wa_create; + return 0; + +error_wa_create: + wusbhc_destroy(&hwahc->wusbhc); +error_wusbhc_create: + /* WA Descr fill allocs no resources */ +error_security_create: +error_fill_descriptor: + uwb_rc_put(wusbhc->uwb_rc); +error_rc_get: + usb_put_intf(iface); + usb_put_dev(usb_dev); + return result; +} + +static void hwahc_destroy(struct hwahc *hwahc) +{ + struct wusbhc *wusbhc = &hwahc->wusbhc; + + d_fnstart(1, NULL, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + __wa_destroy(&hwahc->wa); + wusbhc_destroy(&hwahc->wusbhc); + hwahc_security_release(hwahc); + hwahc->wusbhc.dev = NULL; + uwb_rc_put(wusbhc->uwb_rc); + usb_put_intf(hwahc->wa.usb_iface); + usb_put_dev(hwahc->wa.usb_dev); + mutex_unlock(&wusbhc->mutex); + d_fnend(1, NULL, "(hwahc %p) = void\n", hwahc); +} + +static void hwahc_init(struct hwahc *hwahc) +{ + wa_init(&hwahc->wa); +} + +static int hwahc_probe(struct usb_interface *usb_iface, + const struct usb_device_id *id) +{ + int result; + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc; + struct hwahc *hwahc; + struct device *dev = &usb_iface->dev; + + d_fnstart(4, dev, "(%p, %p)\n", usb_iface, id); + result = -ENOMEM; + usb_hcd = usb_create_hcd(&hwahc_hc_driver, &usb_iface->dev, "wusb-hwa"); + if (usb_hcd == NULL) { + dev_err(dev, "unable to allocate instance\n"); + goto error_alloc; + } + usb_hcd->wireless = 1; + usb_hcd->flags |= HCD_FLAG_SAW_IRQ; + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + hwahc = container_of(wusbhc, struct hwahc, wusbhc); + hwahc_init(hwahc); + result = hwahc_create(hwahc, usb_iface); + if (result < 0) { + dev_err(dev, "Cannot initialize internals: %d\n", result); + goto error_hwahc_create; + } + result = usb_add_hcd(usb_hcd, 0, 0); + if (result < 0) { + dev_err(dev, "Cannot add HCD: %d\n", result); + goto error_add_hcd; + } + result = wusbhc_b_create(&hwahc->wusbhc); + if (result < 0) { + dev_err(dev, "Cannot setup phase B of WUSBHC: %d\n", result); + goto error_wusbhc_b_create; + } + d_fnend(4, dev, "(%p, %p) = 0\n", usb_iface, id); + return 0; + +error_wusbhc_b_create: + usb_remove_hcd(usb_hcd); +error_add_hcd: + hwahc_destroy(hwahc); +error_hwahc_create: + usb_put_hcd(usb_hcd); +error_alloc: + d_fnend(4, dev, "(%p, %p) = %d\n", usb_iface, id, result); + return result; +} + +static void hwahc_disconnect(struct usb_interface *usb_iface) +{ + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc; + struct hwahc *hwahc; + + usb_hcd = usb_get_intfdata(usb_iface); + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + d_fnstart(1, NULL, "(hwahc %p [usb_iface %p])\n", hwahc, usb_iface); + wusbhc_b_destroy(&hwahc->wusbhc); + usb_remove_hcd(usb_hcd); + hwahc_destroy(hwahc); + usb_put_hcd(usb_hcd); + d_fnend(1, NULL, "(hwahc %p [usb_iface %p]) = void\n", hwahc, + usb_iface); +} + +/** USB device ID's that we handle */ +static struct usb_device_id hwahc_id_table[] = { + /* FIXME: use class labels for this */ + { USB_INTERFACE_INFO(0xe0, 0x02, 0x01), }, + {}, +}; +MODULE_DEVICE_TABLE(usb, hwahc_id_table); + +static struct usb_driver hwahc_driver = { + .name = "hwa-hc", + .probe = hwahc_probe, + .disconnect = hwahc_disconnect, + .id_table = hwahc_id_table, +}; + +static int __init hwahc_driver_init(void) +{ + int result; + result = usb_register(&hwahc_driver); + if (result < 0) { + printk(KERN_ERR "WA-CDS: Cannot register USB driver: %d\n", + result); + goto error_usb_register; + } + return 0; + +error_usb_register: + return result; + +} +module_init(hwahc_driver_init); + +static void __exit hwahc_driver_exit(void) +{ + usb_deregister(&hwahc_driver); +} +module_exit(hwahc_driver_exit); + + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Host Wired Adapter USB Host Control Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 20b9a0d07420..4dda31b26892 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -94,6 +94,10 @@ static void write_ptddata_to_fifo(struct isp116x *isp116x, void *buf, int len) u16 w; int quot = len % 4; + /* buffer is already in 'usb data order', which is LE. */ + /* When reading buffer as u16, we have to take care byte order */ + /* doesn't get mixed up */ + if ((unsigned long)dp2 & 1) { /* not aligned */ for (; len > 1; len -= 2) { @@ -105,8 +109,11 @@ static void write_ptddata_to_fifo(struct isp116x *isp116x, void *buf, int len) isp116x_write_data16(isp116x, (u16) * dp); } else { /* aligned */ - for (; len > 1; len -= 2) - isp116x_raw_write_data16(isp116x, *dp2++); + for (; len > 1; len -= 2) { + /* Keep byte order ! */ + isp116x_raw_write_data16(isp116x, cpu_to_le16(*dp2++)); + } + if (len) isp116x_write_data16(isp116x, 0xff & *((u8 *) dp2)); } @@ -124,6 +131,10 @@ static void read_ptddata_from_fifo(struct isp116x *isp116x, void *buf, int len) u16 w; int quot = len % 4; + /* buffer is already in 'usb data order', which is LE. */ + /* When reading buffer as u16, we have to take care byte order */ + /* doesn't get mixed up */ + if ((unsigned long)dp2 & 1) { /* not aligned */ for (; len > 1; len -= 2) { @@ -131,12 +142,16 @@ static void read_ptddata_from_fifo(struct isp116x *isp116x, void *buf, int len) *dp++ = w & 0xff; *dp++ = (w >> 8) & 0xff; } + if (len) *dp = 0xff & isp116x_read_data16(isp116x); } else { /* aligned */ - for (; len > 1; len -= 2) - *dp2++ = isp116x_raw_read_data16(isp116x); + for (; len > 1; len -= 2) { + /* Keep byte order! */ + *dp2++ = le16_to_cpu(isp116x_raw_read_data16(isp116x)); + } + if (len) *(u8 *) dp2 = 0xff & isp116x_read_data16(isp116x); } @@ -867,7 +882,7 @@ static void isp116x_endpoint_disable(struct usb_hcd *hcd, for (i = 0; i < 100 && !list_empty(&hep->urb_list); i++) msleep(3); if (!list_empty(&hep->urb_list)) - WARN("ep %p not empty?\n", ep); + WARNING("ep %p not empty?\n", ep); kfree(ep); hep->hcpriv = NULL; @@ -1547,11 +1562,12 @@ static int __devinit isp116x_probe(struct platform_device *pdev) { struct usb_hcd *hcd; struct isp116x *isp116x; - struct resource *addr, *data; + struct resource *addr, *data, *ires; void __iomem *addr_reg; void __iomem *data_reg; int irq; int ret = 0; + unsigned long irqflags; if (pdev->num_resources < 3) { ret = -ENODEV; @@ -1560,12 +1576,16 @@ static int __devinit isp116x_probe(struct platform_device *pdev) data = platform_get_resource(pdev, IORESOURCE_MEM, 0); addr = platform_get_resource(pdev, IORESOURCE_MEM, 1); - irq = platform_get_irq(pdev, 0); - if (!addr || !data || irq < 0) { + ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + + if (!addr || !data || !ires) { ret = -ENODEV; goto err1; } + irq = ires->start; + irqflags = ires->flags & IRQF_TRIGGER_MASK; + if (pdev->dev.dma_mask) { DBG("DMA not supported\n"); ret = -EINVAL; @@ -1592,7 +1612,7 @@ static int __devinit isp116x_probe(struct platform_device *pdev) } /* allocate and initialize hcd */ - hcd = usb_create_hcd(&isp116x_hc_driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(&isp116x_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { ret = -ENOMEM; goto err5; @@ -1619,7 +1639,7 @@ static int __devinit isp116x_probe(struct platform_device *pdev) goto err6; } - ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); + ret = usb_add_hcd(hcd, irq, irqflags | IRQF_DISABLED); if (ret) goto err6; diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h index 595b90a99848..aa211bafcff9 100644 --- a/drivers/usb/host/isp116x.h +++ b/drivers/usb/host/isp116x.h @@ -338,7 +338,7 @@ struct isp116x_ep { #endif #define ERR(stuff...) printk(KERN_ERR "116x: " stuff) -#define WARN(stuff...) printk(KERN_WARNING "116x: " stuff) +#define WARNING(stuff...) printk(KERN_WARNING "116x: " stuff) #define INFO(stuff...) printk(KERN_INFO "116x: " stuff) /* ------------------------------------------------- */ diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c index 65aa5ecf569a..8017f1cf78e2 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -38,6 +38,7 @@ struct isp1760_hcd { unsigned i_thresh; unsigned long reset_done; unsigned long next_statechange; + unsigned int devflags; }; static inline struct isp1760_hcd *hcd_to_priv(struct usb_hcd *hcd) @@ -125,9 +126,8 @@ static void isp1760_writel(const unsigned int val, __u32 __iomem *regs) * doesn't quite work because some people have to enforce 32-bit access */ static void priv_read_copy(struct isp1760_hcd *priv, u32 *src, - __u32 __iomem *dst, u32 offset, u32 len) + __u32 __iomem *dst, u32 len) { - struct usb_hcd *hcd = priv_to_hcd(priv); u32 val; u8 *buff8; @@ -135,11 +135,6 @@ static void priv_read_copy(struct isp1760_hcd *priv, u32 *src, printk(KERN_ERR "ERROR: buffer: %p len: %d\n", src, len); return; } - isp1760_writel(offset, hcd->regs + HC_MEMORY_REG); - /* XXX - * 90nsec delay, the spec says something how this could be avoided. - */ - mdelay(1); while (len >= 4) { *src = __raw_readl(dst); @@ -378,9 +373,31 @@ static int isp1760_hc_setup(struct usb_hcd *hcd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); int result; - u32 scratch; + u32 scratch, hwmode; + + /* Setup HW Mode Control: This assumes a level active-low interrupt */ + hwmode = HW_DATA_BUS_32BIT; + + if (priv->devflags & ISP1760_FLAG_BUS_WIDTH_16) + hwmode &= ~HW_DATA_BUS_32BIT; + if (priv->devflags & ISP1760_FLAG_ANALOG_OC) + hwmode |= HW_ANA_DIGI_OC; + if (priv->devflags & ISP1760_FLAG_DACK_POL_HIGH) + hwmode |= HW_DACK_POL_HIGH; + if (priv->devflags & ISP1760_FLAG_DREQ_POL_HIGH) + hwmode |= HW_DREQ_POL_HIGH; + + /* + * We have to set this first in case we're in 16-bit mode. + * Write it twice to ensure correct upper bits if switching + * to 16-bit mode. + */ + isp1760_writel(hwmode, hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(hwmode, hcd->regs + HC_HW_MODE_CTRL); isp1760_writel(0xdeadbabe, hcd->regs + HC_SCRATCH_REG); + /* Change bus pattern */ + scratch = isp1760_readl(hcd->regs + HC_CHIP_ID_REG); scratch = isp1760_readl(hcd->regs + HC_SCRATCH_REG); if (scratch != 0xdeadbabe) { printk(KERN_ERR "ISP1760: Scratch test failed.\n"); @@ -403,17 +420,29 @@ static int isp1760_hc_setup(struct usb_hcd *hcd) /* Step 11 passed */ - isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_REG); - isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_ENABLE); + isp1760_info(priv, "bus width: %d, oc: %s\n", + (priv->devflags & ISP1760_FLAG_BUS_WIDTH_16) ? + 16 : 32, (priv->devflags & ISP1760_FLAG_ANALOG_OC) ? + "analog" : "digital"); /* ATL reset */ - scratch = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL); - isp1760_writel(scratch | ALL_ATX_RESET, hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(hwmode | ALL_ATX_RESET, hcd->regs + HC_HW_MODE_CTRL); mdelay(10); - isp1760_writel(scratch, hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(hwmode, hcd->regs + HC_HW_MODE_CTRL); - isp1760_writel(PORT1_POWER | PORT1_INIT2, hcd->regs + HC_PORT1_CTRL); - mdelay(10); + isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_REG); + isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_ENABLE); + + /* + * PORT 1 Control register of the ISP1760 is the OTG control + * register on ISP1761. + */ + if (!(priv->devflags & ISP1760_FLAG_ISP1761) && + !(priv->devflags & ISP1760_FLAG_PORT1_DIS)) { + isp1760_writel(PORT1_POWER | PORT1_INIT2, + hcd->regs + HC_PORT1_CTRL); + mdelay(10); + } priv->hcs_params = isp1760_readl(hcd->regs + HC_HCSPARAMS); @@ -453,8 +482,7 @@ static int isp1760_run(struct usb_hcd *hcd) hcd->state = HC_STATE_RUNNING; isp1760_enable_interrupts(hcd); temp = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL); - temp |= FINAL_HW_CONFIG; - isp1760_writel(temp, hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(temp | HW_GLOBAL_INTR_EN, hcd->regs + HC_HW_MODE_CTRL); command = isp1760_readl(hcd->regs + HC_USBCMD); command &= ~(CMD_LRESET|CMD_RESET); @@ -782,8 +810,8 @@ static void enqueue_one_int_qtd(u32 int_regs, u32 payload, qtd->status |= slot << 16; } -void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, - struct isp1760_qtd *qtd) +static void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, + struct isp1760_qtd *qtd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); u32 skip_map, or_map; @@ -816,8 +844,8 @@ void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, isp1760_writel(buffstatus, hcd->regs + HC_BUFFER_STATUS_REG); } -void enqueue_an_INT_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, - struct isp1760_qtd *qtd) +static void enqueue_an_INT_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, + struct isp1760_qtd *qtd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); u32 skip_map, or_map; @@ -953,8 +981,20 @@ static void do_atl_int(struct usb_hcd *usb_hcd) printk(KERN_ERR "qh is 0\n"); continue; } - priv_read_copy(priv, (u32 *)&ptd, usb_hcd->regs + atl_regs, - atl_regs, sizeof(ptd)); + isp1760_writel(atl_regs + ISP_BANK(0), usb_hcd->regs + + HC_MEMORY_REG); + isp1760_writel(payload + ISP_BANK(1), usb_hcd->regs + + HC_MEMORY_REG); + /* + * write bank1 address twice to ensure the 90ns delay (time + * between BANK0 write and the priv_read_copy() call is at + * least 3*t_WHWL + 2*t_w11 = 3*25ns + 2*17ns = 109ns) + */ + isp1760_writel(payload + ISP_BANK(1), usb_hcd->regs + + HC_MEMORY_REG); + + priv_read_copy(priv, (u32 *)&ptd, usb_hcd->regs + atl_regs + + ISP_BANK(0), sizeof(ptd)); dw1 = le32_to_cpu(ptd.dw1); dw2 = le32_to_cpu(ptd.dw2); @@ -1057,7 +1097,7 @@ static void do_atl_int(struct usb_hcd *usb_hcd) case IN_PID: priv_read_copy(priv, priv->atl_ints[queue_entry].data_buffer, - usb_hcd->regs + payload, payload, + usb_hcd->regs + payload + ISP_BANK(1), length); case OUT_PID: @@ -1088,11 +1128,11 @@ static void do_atl_int(struct usb_hcd *usb_hcd) } else if (usb_pipebulk(urb->pipe) && (length < qtd->length)) { /* short BULK received */ - printk(KERN_ERR "short bulk, %d instead %zu\n", length, - qtd->length); if (urb->transfer_flags & URB_SHORT_NOT_OK) { urb->status = -EREMOTEIO; - printk(KERN_ERR "not okey\n"); + isp1760_dbg(priv, "short bulk, %d instead %zu " + "with URB_SHORT_NOT_OK flag.\n", + length, qtd->length); } if (urb->status == -EINPROGRESS) @@ -1172,8 +1212,20 @@ static void do_intl_int(struct usb_hcd *usb_hcd) continue; } - priv_read_copy(priv, (u32 *)&ptd, usb_hcd->regs + int_regs, - int_regs, sizeof(ptd)); + isp1760_writel(int_regs + ISP_BANK(0), usb_hcd->regs + + HC_MEMORY_REG); + isp1760_writel(payload + ISP_BANK(1), usb_hcd->regs + + HC_MEMORY_REG); + /* + * write bank1 address twice to ensure the 90ns delay (time + * between BANK0 write and the priv_read_copy() call is at + * least 3*t_WHWL + 2*t_w11 = 3*25ns + 2*17ns = 92ns) + */ + isp1760_writel(payload + ISP_BANK(1), usb_hcd->regs + + HC_MEMORY_REG); + + priv_read_copy(priv, (u32 *)&ptd, usb_hcd->regs + int_regs + + ISP_BANK(0), sizeof(ptd)); dw1 = le32_to_cpu(ptd.dw1); dw3 = le32_to_cpu(ptd.dw3); check_int_err_status(le32_to_cpu(ptd.dw4)); @@ -1208,7 +1260,7 @@ static void do_intl_int(struct usb_hcd *usb_hcd) case IN_PID: priv_read_copy(priv, priv->int_ints[queue_entry].data_buffer, - usb_hcd->regs + payload , payload, + usb_hcd->regs + payload + ISP_BANK(1), length); case OUT_PID: @@ -1581,8 +1633,7 @@ static int isp1760_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, return -EPIPE; } - isp1760_prepare_enqueue(priv, urb, &qtd_list, mem_flags, pe); - return 0; + return isp1760_prepare_enqueue(priv, urb, &qtd_list, mem_flags, pe); } static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, @@ -1592,7 +1643,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, struct inter_packet_info *ints; u32 i; u32 reg_base, or_reg, skip_reg; - int flags; + unsigned long flags; struct ptd ptd; switch (usb_pipetype(urb->pipe)) { @@ -2061,7 +2112,7 @@ static void isp1760_endpoint_disable(struct usb_hcd *usb_hcd, struct isp1760_hcd *priv = hcd_to_priv(usb_hcd); struct isp1760_qh *qh; struct isp1760_qtd *qtd; - u32 flags; + unsigned long flags; spin_lock_irqsave(&priv->lock, flags); qh = ep->hcpriv; @@ -2112,6 +2163,7 @@ static int isp1760_get_frame(struct usb_hcd *hcd) static void isp1760_stop(struct usb_hcd *hcd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); + u32 temp; isp1760_hub_control(hcd, ClearPortFeature, USB_PORT_FEAT_POWER, 1, NULL, 0); @@ -2120,7 +2172,8 @@ static void isp1760_stop(struct usb_hcd *hcd) spin_lock_irq(&priv->lock); ehci_reset(priv); /* Disable IRQ */ - isp1760_writel(HW_DATA_BUS_32BIT, hcd->regs + HC_HW_MODE_CTRL); + temp = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(temp &= ~HW_GLOBAL_INTR_EN, hcd->regs + HC_HW_MODE_CTRL); spin_unlock_irq(&priv->lock); isp1760_writel(0, hcd->regs + HC_CONFIGFLAG); @@ -2128,10 +2181,11 @@ static void isp1760_stop(struct usb_hcd *hcd) static void isp1760_shutdown(struct usb_hcd *hcd) { - u32 command; + u32 command, temp; isp1760_stop(hcd); - isp1760_writel(HW_DATA_BUS_32BIT, hcd->regs + HC_HW_MODE_CTRL); + temp = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(temp &= ~HW_GLOBAL_INTR_EN, hcd->regs + HC_HW_MODE_CTRL); command = isp1760_readl(hcd->regs + HC_USBCMD); command &= ~CMD_RUN; @@ -2183,7 +2237,8 @@ void deinit_kmem_cache(void) } struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq, - u64 irqflags, struct device *dev, const char *busname) + u64 irqflags, struct device *dev, const char *busname, + unsigned int devflags) { struct usb_hcd *hcd; struct isp1760_hcd *priv; @@ -2195,11 +2250,12 @@ struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq, /* prevent usb-core allocating DMA pages */ dev->dma_mask = NULL; - hcd = usb_create_hcd(&isp1760_hc_driver, dev, dev->bus_id); + hcd = usb_create_hcd(&isp1760_hc_driver, dev, dev_name(dev)); if (!hcd) return ERR_PTR(-ENOMEM); priv = hcd_to_priv(hcd); + priv->devflags = devflags; init_memory(priv); hcd->regs = ioremap(res_start, res_len); if (!hcd->regs) { diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h index 3d86d0f6b147..4377277667d9 100644 --- a/drivers/usb/host/isp1760-hcd.h +++ b/drivers/usb/host/isp1760-hcd.h @@ -3,7 +3,8 @@ /* exports for if */ struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq, - u64 irqflags, struct device *dev, const char *busname); + u64 irqflags, struct device *dev, const char *busname, + unsigned int devflags); int init_kmem_once(void); void deinit_kmem_cache(void); @@ -31,6 +32,7 @@ void deinit_kmem_cache(void); /* Configuration Register */ #define HC_HW_MODE_CTRL 0x300 #define ALL_ATX_RESET (1 << 31) +#define HW_ANA_DIGI_OC (1 << 15) #define HW_DATA_BUS_32BIT (1 << 8) #define HW_DACK_POL_HIGH (1 << 6) #define HW_DREQ_POL_HIGH (1 << 5) @@ -52,17 +54,20 @@ void deinit_kmem_cache(void); #define BUFFER_MAP 0x7 #define HC_MEMORY_REG 0x33c +#define ISP_BANK(x) ((x) << 16) + #define HC_PORT1_CTRL 0x374 #define PORT1_POWER (3 << 3) #define PORT1_INIT1 (1 << 7) #define PORT1_INIT2 (1 << 23) +#define HW_OTG_CTRL_SET 0x374 +#define HW_OTG_CTRL_CLR 0x376 /* Interrupt Register */ #define HC_INTERRUPT_REG 0x310 #define HC_INTERRUPT_ENABLE 0x314 #define INTERRUPT_ENABLE_MASK (HC_INTL_INT | HC_ATL_INT | HC_EOT_INT) -#define FINAL_HW_CONFIG (HW_GLOBAL_INTR_EN | HW_DATA_BUS_32BIT) #define HC_ISO_INT (1 << 9) #define HC_ATL_INT (1 << 8) @@ -116,12 +121,28 @@ struct inter_packet_info { typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh, struct isp1760_qtd *qtd); +#define isp1760_dbg(priv, fmt, args...) \ + dev_dbg(priv_to_hcd(priv)->self.controller, fmt, ##args) + #define isp1760_info(priv, fmt, args...) \ dev_info(priv_to_hcd(priv)->self.controller, fmt, ##args) #define isp1760_err(priv, fmt, args...) \ dev_err(priv_to_hcd(priv)->self.controller, fmt, ##args) +/* + * Device flags that can vary from board to board. All of these + * indicate the most "atypical" case, so that a devflags of 0 is + * a sane default configuration. + */ +#define ISP1760_FLAG_PORT1_DIS 0x00000001 /* Port 1 disabled */ +#define ISP1760_FLAG_BUS_WIDTH_16 0x00000002 /* 16-bit data bus width */ +#define ISP1760_FLAG_OTG_EN 0x00000004 /* Port 1 supports OTG */ +#define ISP1760_FLAG_ANALOG_OC 0x00000008 /* Analog overcurrent */ +#define ISP1760_FLAG_DACK_POL_HIGH 0x00000010 /* DACK active high */ +#define ISP1760_FLAG_DREQ_POL_HIGH 0x00000020 /* DREQ active high */ +#define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */ + /* chip memory management */ struct memory_chunk { unsigned int start; diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index c9db3fe98726..af849f596135 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -35,13 +35,15 @@ static int of_isp1760_probe(struct of_device *dev, int virq; u64 res_len; int ret; + const unsigned int *prop; + unsigned int devflags = 0; ret = of_address_to_resource(dp, 0, &memory); if (ret) return -ENXIO; res = request_mem_region(memory.start, memory.end - memory.start + 1, - dev->dev.bus_id); + dev_name(&dev->dev)); if (!res) return -EBUSY; @@ -55,8 +57,32 @@ static int of_isp1760_probe(struct of_device *dev, virq = irq_create_of_mapping(oirq.controller, oirq.specifier, oirq.size); + if (of_device_is_compatible(dp, "nxp,usb-isp1761")) + devflags |= ISP1760_FLAG_ISP1761; + + if (of_get_property(dp, "port1-disable", NULL) != NULL) + devflags |= ISP1760_FLAG_PORT1_DIS; + + /* Some systems wire up only 16 of the 32 data lines */ + prop = of_get_property(dp, "bus-width", NULL); + if (prop && *prop == 16) + devflags |= ISP1760_FLAG_BUS_WIDTH_16; + + if (of_get_property(dp, "port1-otg", NULL) != NULL) + devflags |= ISP1760_FLAG_OTG_EN; + + if (of_get_property(dp, "analog-oc", NULL) != NULL) + devflags |= ISP1760_FLAG_ANALOG_OC; + + if (of_get_property(dp, "dack-polarity", NULL) != NULL) + devflags |= ISP1760_FLAG_DACK_POL_HIGH; + + if (of_get_property(dp, "dreq-polarity", NULL) != NULL) + devflags |= ISP1760_FLAG_DREQ_POL_HIGH; + hcd = isp1760_register(memory.start, res_len, virq, - IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev->dev.bus_id); + IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev_name(&dev->dev), + devflags); if (IS_ERR(hcd)) { ret = PTR_ERR(hcd); goto release_reg; @@ -87,6 +113,9 @@ static struct of_device_id of_isp1760_match[] = { { .compatible = "nxp,usb-isp1760", }, + { + .compatible = "nxp,usb-isp1761", + }, { }, }; MODULE_DEVICE_TABLE(of, of_isp1760_match); @@ -116,6 +145,7 @@ static int __devinit isp1761_pci_probe(struct pci_dev *dev, int length; int status = 1; struct usb_hcd *hcd; + unsigned int devflags = 0; if (usb_disabled()) return -ENODEV; @@ -188,7 +218,7 @@ static int __devinit isp1761_pci_probe(struct pci_dev *dev, * and reading back and checking the contents are same or not */ if (reg_data != 0xFACE) { - err("scratch register mismatch %x", reg_data); + dev_err(&dev->dev, "scratch register mismatch %x\n", reg_data); goto clean; } @@ -200,10 +230,12 @@ static int __devinit isp1761_pci_probe(struct pci_dev *dev, dev->dev.dma_mask = NULL; hcd = isp1760_register(pci_mem_phy0, length, dev->irq, - IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev->dev.bus_id); - pci_set_drvdata(dev, hcd); - if (!hcd) + IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev_name(&dev->dev), + devflags); + if (!IS_ERR(hcd)) { + pci_set_drvdata(dev, hcd); return 0; + } clean: status = -ENODEV; iounmap(iobase); diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index e534f9de0f05..4ed228a89943 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -15,12 +15,11 @@ #include <linux/clk.h> #include <linux/platform_device.h> -#include <asm/mach-types.h> -#include <asm/hardware.h> +#include <mach/hardware.h> #include <asm/gpio.h> -#include <asm/arch/board.h> -#include <asm/arch/cpu.h> +#include <mach/board.h> +#include <mach/cpu.h> #ifndef CONFIG_ARCH_AT91 #error "CONFIG_ARCH_AT91 must be defined." @@ -91,7 +90,7 @@ static void at91_stop_hc(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static int usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); +static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); /* configure so an HC device and id are always provided */ /* always called with process context; sleeping is OK */ @@ -184,13 +183,14 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, * context, "rmmod" or something similar. * */ -static int usb_hcd_at91_remove(struct usb_hcd *hcd, +static void usb_hcd_at91_remove(struct usb_hcd *hcd, struct platform_device *pdev) { usb_remove_hcd(hcd); at91_stop_hc(pdev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); if (cpu_is_at91sam9261()) clk_put(hclk); @@ -199,7 +199,6 @@ static int usb_hcd_at91_remove(struct usb_hcd *hcd, fclk = iclk = hclk = NULL; dev_set_drvdata(&pdev->dev, NULL); - return 0; } /*-------------------------------------------------------------------------*/ @@ -261,7 +260,6 @@ static const struct hc_driver ohci_at91_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -309,7 +307,8 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) } device_init_wakeup(&pdev->dev, 0); - return usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev); + usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev); + return 0; } #ifdef CONFIG_PM diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c index 68c17f5ea8ea..2ac4e022a13f 100644 --- a/drivers/usb/host/ohci-au1xxx.c +++ b/drivers/usb/host/ohci-au1xxx.c @@ -34,7 +34,8 @@ #ifdef __LITTLE_ENDIAN #define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C) #elif __BIG_ENDIAN -#define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C | USBH_ENABLE_BE) +#define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C | \ + USBH_ENABLE_BE) #else #error not byte order defined #endif @@ -46,213 +47,87 @@ #define USB_MCFG_RDCOMB (1<<30) #define USB_MCFG_SSDEN (1<<23) #define USB_MCFG_OHCCLKEN (1<<16) +#ifdef CONFIG_DMA_COHERENT #define USB_MCFG_UCAM (1<<7) +#else +#define USB_MCFG_UCAM (0) +#endif #define USB_MCFG_OBMEN (1<<1) #define USB_MCFG_OMEMEN (1<<0) #define USBH_ENABLE_CE USB_MCFG_OHCCLKEN -#ifdef CONFIG_DMA_COHERENT -#define USBH_ENABLE_INIT (USB_MCFG_OHCCLKEN \ - | USB_MCFG_PFEN | USB_MCFG_RDCOMB \ - | USB_MCFG_SSDEN | USB_MCFG_UCAM \ - | USB_MCFG_OBMEN | USB_MCFG_OMEMEN) -#else -#define USBH_ENABLE_INIT (USB_MCFG_OHCCLKEN \ - | USB_MCFG_PFEN | USB_MCFG_RDCOMB \ - | USB_MCFG_SSDEN \ - | USB_MCFG_OBMEN | USB_MCFG_OMEMEN) -#endif + +#define USBH_ENABLE_INIT (USB_MCFG_PFEN | USB_MCFG_RDCOMB | \ + USBH_ENABLE_CE | USB_MCFG_SSDEN | \ + USB_MCFG_UCAM | \ + USB_MCFG_OBMEN | USB_MCFG_OMEMEN) + #define USBH_DISABLE (USB_MCFG_OBMEN | USB_MCFG_OMEMEN) #endif /* Au1200 */ extern int usb_disabled(void); -/*-------------------------------------------------------------------------*/ - -static void au1xxx_start_ohc(struct platform_device *dev) +static void au1xxx_start_ohc(void) { - printk(KERN_DEBUG __FILE__ - ": starting Au1xxx OHCI USB Controller\n"); - /* enable host controller */ - #ifndef CONFIG_SOC_AU1200 - au_writel(USBH_ENABLE_CE, USB_HOST_CONFIG); + au_sync(); udelay(1000); - au_writel(USBH_ENABLE_INIT, USB_HOST_CONFIG); - udelay(1000); - -#else /* Au1200 */ - /* write HW defaults again in case Yamon cleared them */ - if (au_readl(USB_HOST_CONFIG) == 0) { - au_writel(0x00d02000, USB_HOST_CONFIG); - au_readl(USB_HOST_CONFIG); - udelay(1000); - } - au_writel(USBH_ENABLE_CE | au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); - au_readl(USB_HOST_CONFIG); + au_writel(au_readl(USB_HOST_CONFIG) | USBH_ENABLE_INIT, USB_HOST_CONFIG); + au_sync(); udelay(1000); - au_writel(USBH_ENABLE_INIT | au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); - au_readl(USB_HOST_CONFIG); - udelay(1000); - -#endif /* Au1200 */ -#ifndef CONFIG_SOC_AU1200 /* wait for reset complete (read register twice; see au1500 errata) */ while (au_readl(USB_HOST_CONFIG), !(au_readl(USB_HOST_CONFIG) & USBH_ENABLE_RD)) -#endif udelay(1000); - printk(KERN_DEBUG __FILE__ - ": Clock to USB host has been enabled \n"); -} - -static void au1xxx_stop_ohc(struct platform_device *dev) -{ - printk(KERN_DEBUG __FILE__ - ": stopping Au1xxx OHCI USB Controller\n"); - -#ifndef CONFIG_SOC_AU1200 - - /* Disable clock */ - au_writel(au_readl(USB_HOST_CONFIG) & ~USBH_ENABLE_CE, USB_HOST_CONFIG); - #else /* Au1200 */ - - /* Disable mem */ - au_writel(~USBH_DISABLE & au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); + au_writel(au_readl(USB_HOST_CONFIG) | USBH_ENABLE_CE, USB_HOST_CONFIG); + au_sync(); udelay(1000); - /* Disable clock */ - au_writel(~USBH_ENABLE_CE & au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); - au_readl(USB_HOST_CONFIG); + + au_writel(au_readl(USB_HOST_CONFIG) | USBH_ENABLE_INIT, USB_HOST_CONFIG); + au_sync(); + udelay(2000); #endif /* Au1200 */ } - -/*-------------------------------------------------------------------------*/ - -/* configure so an HC device and id are always provided */ -/* always called with process context; sleeping is OK */ - - -/** - * usb_ohci_au1xxx_probe - initialize Au1xxx-based HCDs - * Context: !in_interrupt() - * - * Allocates basic resources for this USB host controller, and - * then invokes the start() method for the HCD associated with it - * through the hotplug entry's driver_data. - * - */ -static int usb_ohci_au1xxx_probe(const struct hc_driver *driver, - struct platform_device *dev) +static void au1xxx_stop_ohc(void) { - int retval; - struct usb_hcd *hcd; - -#if defined(CONFIG_SOC_AU1200) && defined(CONFIG_DMA_COHERENT) - /* Au1200 AB USB does not support coherent memory */ - if (!(read_c0_prid() & 0xff)) { - pr_info("%s: this is chip revision AB !!\n", - dev->name); - pr_info("%s: update your board or re-configure the kernel\n", - dev->name); - return -ENODEV; - } +#ifdef CONFIG_SOC_AU1200 + /* Disable mem */ + au_writel(au_readl(USB_HOST_CONFIG) & ~USBH_DISABLE, USB_HOST_CONFIG); + au_sync(); + udelay(1000); #endif - - if (dev->resource[1].flags != IORESOURCE_IRQ) { - pr_debug("resource[1] is not IORESOURCE_IRQ\n"); - return -ENOMEM; - } - - hcd = usb_create_hcd(driver, &dev->dev, "au1xxx"); - if (!hcd) - return -ENOMEM; - hcd->rsrc_start = dev->resource[0].start; - hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1; - - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_debug("request_mem_region failed\n"); - retval = -EBUSY; - goto err1; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - pr_debug("ioremap failed\n"); - retval = -ENOMEM; - goto err2; - } - - au1xxx_start_ohc(dev); - ohci_hcd_init(hcd_to_ohci(hcd)); - - retval = usb_add_hcd(hcd, dev->resource[1].start, IRQF_DISABLED | IRQF_SHARED); - if (retval == 0) - return retval; - - au1xxx_stop_ohc(dev); - iounmap(hcd->regs); - err2: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - err1: - usb_put_hcd(hcd); - return retval; -} - - -/* may be called without controller electrically present */ -/* may be called with controller, bus, and devices active */ - -/** - * usb_hcd_au1xxx_remove - shutdown processing for Au1xxx-based HCDs - * @dev: USB Host Controller being removed - * Context: !in_interrupt() - * - * Reverses the effect of usb_hcd_au1xxx_probe(), first invoking - * the HCD's stop() method. It is always called from a thread - * context, normally "rmmod", "apmd", or something similar. - * - */ -static void usb_ohci_au1xxx_remove(struct usb_hcd *hcd, struct platform_device *dev) -{ - usb_remove_hcd(hcd); - au1xxx_stop_ohc(dev); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - usb_put_hcd(hcd); + /* Disable clock */ + au_writel(au_readl(USB_HOST_CONFIG) & ~USBH_ENABLE_CE, USB_HOST_CONFIG); + au_sync(); } -/*-------------------------------------------------------------------------*/ - -static int __devinit -ohci_au1xxx_start (struct usb_hcd *hcd) +static int __devinit ohci_au1xxx_start(struct usb_hcd *hcd) { - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + int ret; - ohci_dbg (ohci, "ohci_au1xxx_start, ohci:%p", ohci); + ohci_dbg(ohci, "ohci_au1xxx_start, ohci:%p", ohci); - if ((ret = ohci_init (ohci)) < 0) + if ((ret = ohci_init(ohci)) < 0) return ret; - if ((ret = ohci_run (ohci)) < 0) { + if ((ret = ohci_run(ohci)) < 0) { err ("can't start %s", hcd->self.bus_name); - ohci_stop (hcd); + ohci_stop(hcd); return ret; } return 0; } -/*-------------------------------------------------------------------------*/ - static const struct hc_driver ohci_au1xxx_hc_driver = { .description = hcd_name, .product_desc = "Au1xxx OHCI", @@ -288,7 +163,6 @@ static const struct hc_driver ohci_au1xxx_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -296,18 +170,66 @@ static const struct hc_driver ohci_au1xxx_hc_driver = { .start_port_reset = ohci_start_port_reset, }; -/*-------------------------------------------------------------------------*/ - static int ohci_hcd_au1xxx_drv_probe(struct platform_device *pdev) { int ret; - - pr_debug ("In ohci_hcd_au1xxx_drv_probe"); + struct usb_hcd *hcd; if (usb_disabled()) return -ENODEV; - ret = usb_ohci_au1xxx_probe(&ohci_au1xxx_hc_driver, pdev); +#if defined(CONFIG_SOC_AU1200) && defined(CONFIG_DMA_COHERENT) + /* Au1200 AB USB does not support coherent memory */ + if (!(read_c0_prid() & 0xff)) { + printk(KERN_INFO "%s: this is chip revision AB !!\n", + pdev->name); + printk(KERN_INFO "%s: update your board or re-configure " + "the kernel\n", pdev->name); + return -ENODEV; + } +#endif + + if (pdev->resource[1].flags != IORESOURCE_IRQ) { + pr_debug("resource[1] is not IORESOURCE_IRQ\n"); + return -ENOMEM; + } + + hcd = usb_create_hcd(&ohci_au1xxx_hc_driver, &pdev->dev, "au1xxx"); + if (!hcd) + return -ENOMEM; + + hcd->rsrc_start = pdev->resource[0].start; + hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { + pr_debug("request_mem_region failed\n"); + ret = -EBUSY; + goto err1; + } + + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) { + pr_debug("ioremap failed\n"); + ret = -ENOMEM; + goto err2; + } + + au1xxx_start_ohc(); + ohci_hcd_init(hcd_to_ohci(hcd)); + + ret = usb_add_hcd(hcd, pdev->resource[1].start, + IRQF_DISABLED | IRQF_SHARED); + if (ret == 0) { + platform_set_drvdata(pdev, hcd); + return ret; + } + + au1xxx_stop_ohc(); + iounmap(hcd->regs); +err2: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +err1: + usb_put_hcd(hcd); return ret; } @@ -315,30 +237,78 @@ static int ohci_hcd_au1xxx_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - usb_ohci_au1xxx_remove(hcd, pdev); + usb_remove_hcd(hcd); + au1xxx_stop_ohc(); + iounmap(hcd->regs); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); + platform_set_drvdata(pdev, NULL); + return 0; } - /*TBD*/ -/*static int ohci_hcd_au1xxx_drv_suspend(struct platform_device *dev) + +#ifdef CONFIG_PM +static int ohci_hcd_au1xxx_drv_suspend(struct platform_device *pdev, + pm_message_t message) { - struct usb_hcd *hcd = platform_get_drvdata(dev); + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + unsigned long flags; + int rc; + + rc = 0; + + /* Root hub was already suspended. Disable irq emission and + * mark HW unaccessible, bail out if RH has been resumed. Use + * the spinlock to properly synchronize with possible pending + * RH suspend or resume activity. + * + * This is still racy as hcd->state is manipulated outside of + * any locks =P But that will be a different fix. + */ + spin_lock_irqsave(&ohci->lock, flags); + if (hcd->state != HC_STATE_SUSPENDED) { + rc = -EINVAL; + goto bail; + } + ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); + (void)ohci_readl(ohci, &ohci->regs->intrdisable); - return 0; + /* make sure snapshot being resumed re-enumerates everything */ + if (message.event == PM_EVENT_PRETHAW) + ohci_usb_reset(ohci); + + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + + au1xxx_stop_ohc(); +bail: + spin_unlock_irqrestore(&ohci->lock, flags); + + return rc; } -static int ohci_hcd_au1xxx_drv_resume(struct platform_device *dev) + +static int ohci_hcd_au1xxx_drv_resume(struct platform_device *pdev) { - struct usb_hcd *hcd = platform_get_drvdata(dev); + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + au1xxx_start_ohc(); + + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + ohci_finish_controller_resume(hcd); return 0; } -*/ +#else +#define ohci_hcd_au1xxx_drv_suspend NULL +#define ohci_hcd_au1xxx_drv_resume NULL +#endif static struct platform_driver ohci_hcd_au1xxx_driver = { .probe = ohci_hcd_au1xxx_drv_probe, .remove = ohci_hcd_au1xxx_drv_remove, .shutdown = usb_hcd_platform_shutdown, - /*.suspend = ohci_hcd_au1xxx_drv_suspend, */ - /*.resume = ohci_hcd_au1xxx_drv_resume, */ + .suspend = ohci_hcd_au1xxx_drv_suspend, + .resume = ohci_hcd_au1xxx_drv_resume, .driver = { .name = "au1xxx-ohci", .owner = THIS_MODULE, diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index e06bfaebec54..d3269656aa4d 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -649,9 +649,9 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) ohci_dbg_sw (ohci, &next, &size, "bus %s, device %s\n" "%s\n" - "%s version " DRIVER_VERSION "\n", + "%s\n", hcd->self.controller->bus->name, - hcd->self.controller->bus_id, + dev_name(hcd->self.controller), hcd->product_desc, hcd_name); diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index 5adaf36e47d0..fb3055f084b5 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -28,8 +28,7 @@ #include <linux/signal.h> #include <linux/platform_device.h> -#include <asm/mach-types.h> -#include <asm/hardware.h> +#include <mach/hardware.h> static struct clk *usb_host_clock; @@ -135,7 +134,6 @@ static struct hc_driver ohci_ep93xx_hc_driver = { .get_frame_number = ohci_get_frame, .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index a8160d65f32b..8aa3f4556a32 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -46,7 +46,6 @@ #include "../core/hcd.h" -#define DRIVER_VERSION "2006 August 04" #define DRIVER_AUTHOR "Roman Weissgaerber, David Brownell" #define DRIVER_DESC "USB 1.1 'Open' Host Controller (OHCI) Driver" @@ -86,6 +85,21 @@ static void ohci_stop (struct usb_hcd *hcd); static int ohci_restart (struct ohci_hcd *ohci); #endif +#ifdef CONFIG_PCI +static void quirk_amd_pll(int state); +static void amd_iso_dev_put(void); +#else +static inline void quirk_amd_pll(int state) +{ + return; +} +static inline void amd_iso_dev_put(void) +{ + return; +} +#endif + + #include "ohci-hub.c" #include "ohci-dbg.c" #include "ohci-mem.c" @@ -483,6 +497,9 @@ static int ohci_init (struct ohci_hcd *ohci) int ret; struct usb_hcd *hcd = ohci_to_hcd(ohci); + if (distrust_firmware) + ohci->flags |= OHCI_QUIRK_HUB_POWER; + disable (ohci); ohci->regs = hcd->regs; @@ -689,7 +706,8 @@ retry: temp |= RH_A_NOCP; temp &= ~(RH_A_POTPGT | RH_A_NPS); ohci_writel (ohci, temp, &ohci->regs->roothub.a); - } else if ((ohci->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { + } else if ((ohci->flags & OHCI_QUIRK_AMD756) || + (ohci->flags & OHCI_QUIRK_HUB_POWER)) { /* hub power always on; required for AMD-756 and some * Mac platforms. ganged overcurrent reporting, if any. */ @@ -882,6 +900,8 @@ static void ohci_stop (struct usb_hcd *hcd) if (quirk_zfmicro(ohci)) del_timer(&ohci->unlink_watchdog); + if (quirk_amdiso(ohci)) + amd_iso_dev_put(); remove_debug_files (ohci); ohci_mem_cleanup (ohci); @@ -963,10 +983,8 @@ static int ohci_restart (struct ohci_hcd *ohci) /*-------------------------------------------------------------------------*/ -#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC - MODULE_AUTHOR (DRIVER_AUTHOR); -MODULE_DESCRIPTION (DRIVER_INFO); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE ("GPL"); #ifdef CONFIG_PCI @@ -974,7 +992,7 @@ MODULE_LICENSE ("GPL"); #define PCI_DRIVER ohci_pci_driver #endif -#ifdef CONFIG_SA1111 +#if defined(CONFIG_ARCH_SA1100) && defined(CONFIG_SA1111) #include "ohci-sa1111.c" #define SA1111_DRIVER ohci_hcd_sa1111_driver #endif @@ -1057,12 +1075,18 @@ MODULE_LICENSE ("GPL"); #define SM501_OHCI_DRIVER ohci_hcd_sm501_driver #endif +#ifdef CONFIG_MFD_TC6393XB +#include "ohci-tmio.c" +#define TMIO_OHCI_DRIVER ohci_hcd_tmio_driver +#endif + #if !defined(PCI_DRIVER) && \ !defined(PLATFORM_DRIVER) && \ !defined(OF_PLATFORM_DRIVER) && \ !defined(SA1111_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && \ !defined(SM501_OHCI_DRIVER) && \ + !defined(TMIO_OHCI_DRIVER) && \ !defined(SSB_OHCI_DRIVER) #error "missing bus glue for ohci-hcd" #endif @@ -1074,9 +1098,10 @@ static int __init ohci_hcd_mod_init(void) if (usb_disabled()) return -ENODEV; - printk (KERN_DEBUG "%s: " DRIVER_INFO "\n", hcd_name); + printk(KERN_INFO "%s: " DRIVER_DESC "\n", hcd_name); pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name, sizeof (struct ed), sizeof (struct td)); + set_bit(USB_OHCI_LOADED, &usb_hcds_loaded); #ifdef DEBUG ohci_debug_root = debugfs_create_dir("ohci", NULL); @@ -1128,13 +1153,25 @@ static int __init ohci_hcd_mod_init(void) goto error_sm501; #endif +#ifdef TMIO_OHCI_DRIVER + retval = platform_driver_register(&TMIO_OHCI_DRIVER); + if (retval < 0) + goto error_tmio; +#endif + return retval; /* Error path */ +#ifdef TMIO_OHCI_DRIVER + platform_driver_unregister(&TMIO_OHCI_DRIVER); + error_tmio: +#endif #ifdef SM501_OHCI_DRIVER + platform_driver_unregister(&SM501_OHCI_DRIVER); error_sm501: #endif #ifdef SSB_OHCI_DRIVER + ssb_driver_unregister(&SSB_OHCI_DRIVER); error_ssb: #endif #ifdef PCI_DRIVER @@ -1163,12 +1200,16 @@ static int __init ohci_hcd_mod_init(void) error_debug: #endif + clear_bit(USB_OHCI_LOADED, &usb_hcds_loaded); return retval; } module_init(ohci_hcd_mod_init); static void __exit ohci_hcd_mod_exit(void) { +#ifdef TMIO_OHCI_DRIVER + platform_driver_unregister(&TMIO_OHCI_DRIVER); +#endif #ifdef SM501_OHCI_DRIVER platform_driver_unregister(&SM501_OHCI_DRIVER); #endif @@ -1193,6 +1234,7 @@ static void __exit ohci_hcd_mod_exit(void) #ifdef DEBUG debugfs_remove(ohci_debug_root); #endif + clear_bit(USB_OHCI_LOADED, &usb_hcds_loaded); } module_exit(ohci_hcd_mod_exit); diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index b56739221d11..32bbce9718f0 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -36,18 +36,6 @@ /*-------------------------------------------------------------------------*/ -/* hcd->hub_irq_enable() */ -static void ohci_rhsc_enable (struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - - spin_lock_irq(&ohci->lock); - if (!ohci->autostop) - del_timer(&hcd->rh_timer); /* Prevent next poll */ - ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable); - spin_unlock_irq(&ohci->lock); -} - #define OHCI_SCHED_ENABLES \ (OHCI_CTRL_CLE|OHCI_CTRL_BLE|OHCI_CTRL_PLE|OHCI_CTRL_IE) @@ -371,21 +359,34 @@ static void ohci_finish_controller_resume(struct usb_hcd *hcd) /* Carry out polling-, autostop-, and autoresume-related state changes */ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, - int any_connected) + int any_connected, int rhsc_status) { int poll_rh = 1; + int rhsc_enable; - switch (ohci->hc_control & OHCI_CTRL_HCFS) { + /* Some broken controllers never turn off RHCS in the interrupt + * status register. For their sake we won't re-enable RHSC + * interrupts if the interrupt bit is already active. + */ + rhsc_enable = ohci_readl(ohci, &ohci->regs->intrenable) & + OHCI_INTR_RHSC; + switch (ohci->hc_control & OHCI_CTRL_HCFS) { case OHCI_USB_OPER: - /* keep on polling until we know a device is connected - * and RHSC is enabled */ + /* If no status changes are pending, enable RHSC interrupts. */ + if (!rhsc_enable && !rhsc_status && !changed) { + rhsc_enable = OHCI_INTR_RHSC; + ohci_writel(ohci, rhsc_enable, &ohci->regs->intrenable); + } + + /* Keep on polling until we know a device is connected + * and RHSC is enabled, or until we autostop. + */ if (!ohci->autostop) { if (any_connected || !device_may_wakeup(&ohci_to_hcd(ohci) ->self.root_hub->dev)) { - if (ohci_readl(ohci, &ohci->regs->intrenable) & - OHCI_INTR_RHSC) + if (rhsc_enable) poll_rh = 0; } else { ohci->autostop = 1; @@ -404,21 +405,39 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, && !(ohci->hc_control & OHCI_SCHED_ENABLES)) { ohci_rh_suspend(ohci, 1); + if (rhsc_enable) + poll_rh = 0; } } break; - /* if there is a port change, autostart or ask to be resumed */ case OHCI_USB_SUSPEND: case OHCI_USB_RESUME: + /* if there is a port change, autostart or ask to be resumed */ if (changed) { if (ohci->autostop) ohci_rh_resume(ohci); else usb_hcd_resume_root_hub(ohci_to_hcd(ohci)); - } else { - /* everything is idle, no need for polling */ + + /* If remote wakeup is disabled, stop polling */ + } else if (!ohci->autostop && + !ohci_to_hcd(ohci)->self.root_hub-> + do_remote_wakeup) { poll_rh = 0; + + } else { + /* If no status changes are pending, + * enable RHSC interrupts + */ + if (!rhsc_enable && !rhsc_status) { + rhsc_enable = OHCI_INTR_RHSC; + ohci_writel(ohci, rhsc_enable, + &ohci->regs->intrenable); + } + /* Keep polling until RHSC is enabled */ + if (rhsc_enable) + poll_rh = 0; } break; } @@ -436,14 +455,22 @@ static inline int ohci_rh_resume(struct ohci_hcd *ohci) * autostop isn't used when CONFIG_PM is turned off. */ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, - int any_connected) + int any_connected, int rhsc_status) { - int poll_rh = 1; - - /* keep on polling until RHSC is enabled */ + /* If RHSC is enabled, don't poll */ if (ohci_readl(ohci, &ohci->regs->intrenable) & OHCI_INTR_RHSC) - poll_rh = 0; - return poll_rh; + return 0; + + /* If status changes are pending, continue polling. + * Conversely, if no status changes are pending but the RHSC + * status bit was set, then RHSC may be broken so continue polling. + */ + if (changed || rhsc_status) + return 1; + + /* It's safe to re-enable RHSC interrupts */ + ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable); + return 0; } #endif /* CONFIG_PM */ @@ -458,6 +485,7 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) struct ohci_hcd *ohci = hcd_to_ohci (hcd); int i, changed = 0, length = 1; int any_connected = 0; + int rhsc_status; unsigned long flags; spin_lock_irqsave (&ohci->lock, flags); @@ -483,6 +511,11 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) length++; } + /* Clear the RHSC status flag before reading the port statuses */ + ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrstatus); + rhsc_status = ohci_readl(ohci, &ohci->regs->intrstatus) & + OHCI_INTR_RHSC; + /* look at each port */ for (i = 0; i < ohci->num_ports; i++) { u32 status = roothub_portstatus (ohci, i); @@ -501,7 +534,7 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) } hcd->poll_rh = ohci_root_hub_state_changes(ohci, changed, - any_connected); + any_connected, rhsc_status); done: spin_unlock_irqrestore (&ohci->lock, flags); @@ -572,8 +605,6 @@ static int ohci_start_port_reset (struct usb_hcd *hcd, unsigned port) return 0; } -static void start_hnp(struct ohci_hcd *ohci); - #else #define ohci_start_port_reset NULL @@ -760,7 +791,7 @@ static int ohci_hub_control ( #ifdef CONFIG_USB_OTG if (hcd->self.otg_port == (wIndex + 1) && hcd->self.b_hnp_enable) - start_hnp(ohci); + ohci->start_hnp(ohci); else #endif ohci_writel (ohci, RH_PS_PSS, diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c index 1ef5d482c145..de42283149c7 100644 --- a/drivers/usb/host/ohci-lh7a404.c +++ b/drivers/usb/host/ohci-lh7a404.c @@ -19,7 +19,7 @@ #include <linux/platform_device.h> #include <linux/signal.h> -#include <asm/hardware.h> +#include <mach/hardware.h> extern int usb_disabled(void); @@ -193,7 +193,6 @@ static const struct hc_driver ohci_lh7a404_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index a19a4f80a6e1..91697bdb399f 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -19,15 +19,15 @@ #include <linux/platform_device.h> #include <linux/clk.h> -#include <asm/hardware.h> +#include <mach/hardware.h> #include <asm/io.h> #include <asm/mach-types.h> -#include <asm/arch/mux.h> -#include <asm/arch/irqs.h> -#include <asm/arch/gpio.h> -#include <asm/arch/fpga.h> -#include <asm/arch/usb.h> +#include <mach/mux.h> +#include <mach/irqs.h> +#include <mach/gpio.h> +#include <mach/fpga.h> +#include <mach/usb.h> /* OMAP-1510 OHCI has its own MMU for DMA */ @@ -208,7 +208,7 @@ static int ohci_omap_init(struct usb_hcd *hcd) if (cpu_is_omap16xx()) ocpi_enable(); -#ifdef CONFIG_ARCH_OMAP_OTG +#ifdef CONFIG_USB_OTG if (need_transceiver) { ohci->transceiver = otg_get_transceiver(); if (ohci->transceiver) { @@ -225,12 +225,13 @@ static int ohci_omap_init(struct usb_hcd *hcd) dev_err(hcd->self.controller, "can't find transceiver\n"); return -ENODEV; } + ohci->start_hnp = start_hnp; } #endif omap_ohci_clock_power(1); - if (cpu_is_omap1510()) { + if (cpu_is_omap15xx()) { omap_1510_local_bus_power(1); omap_1510_local_bus_init(); } @@ -260,7 +261,7 @@ static int ohci_omap_init(struct usb_hcd *hcd) omap_cfg_reg(W4_USB_HIGHZ); } ohci_writel(ohci, rh, &ohci->regs->roothub.a); - distrust_firmware = 0; + ohci->flags &= ~OHCI_QUIRK_HUB_POWER; } else if (machine_is_nokia770()) { /* We require a self-powered hub, which should have * plenty of power. */ @@ -318,7 +319,7 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, if (IS_ERR(usb_host_ck)) return PTR_ERR(usb_host_ck); - if (!cpu_is_omap1510()) + if (!cpu_is_omap15xx()) usb_dc_ck = clk_get(0, "usb_dc_ck"); else usb_dc_ck = clk_get(0, "lb_ck"); @@ -329,7 +330,7 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, } - hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd (driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto err0; @@ -343,7 +344,12 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, goto err1; } - hcd->regs = (void __iomem *) (int) IO_ADDRESS(hcd->rsrc_start); + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) { + dev_err(&pdev->dev, "can't ioremap OHCI HCD\n"); + retval = -ENOMEM; + goto err2; + } ohci = hcd_to_ohci(hcd); ohci_hcd_init(ohci); @@ -354,11 +360,11 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, irq = platform_get_irq(pdev, 0); if (irq < 0) { retval = -ENXIO; - goto err2; + goto err3; } retval = usb_add_hcd(hcd, irq, IRQF_DISABLED); if (retval) - goto err2; + goto err3; host_initialized = 1; @@ -366,6 +372,8 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, omap_ohci_clock_power(0); return 0; +err3: + iounmap(hcd->regs); err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err1: @@ -400,6 +408,7 @@ usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev) } if (machine_is_omap_osk()) omap_free_gpio(9); + iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); clk_put(usb_dc_ck); @@ -469,7 +478,6 @@ static const struct hc_driver ohci_omap_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 4696cc912e16..a9c2ae36c7ad 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -18,6 +18,28 @@ #error "This file is PCI bus glue. CONFIG_PCI must be defined." #endif +#include <linux/pci.h> +#include <linux/io.h> + + +/* constants used to work around PM-related transfer + * glitches in some AMD 700 series southbridges + */ +#define AB_REG_BAR 0xf0 +#define AB_INDX(addr) ((addr) + 0x00) +#define AB_DATA(addr) ((addr) + 0x04) +#define AX_INDXC 0X30 +#define AX_DATAC 0x34 + +#define NB_PCIE_INDX_ADDR 0xe0 +#define NB_PCIE_INDX_DATA 0xe4 +#define PCIE_P_CNTL 0x10040 +#define BIF_NB 0x10002 + +static struct pci_dev *amd_smbus_dev; +static struct pci_dev *amd_hb_dev; +static int amd_ohci_iso_count; + /*-------------------------------------------------------------------------*/ static int broken_suspend(struct usb_hcd *hcd) @@ -143,6 +165,103 @@ static int ohci_quirk_nec(struct usb_hcd *hcd) return 0; } +static int ohci_quirk_amd700(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + u8 rev = 0; + + if (!amd_smbus_dev) + amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, + PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL); + if (!amd_smbus_dev) + return 0; + + pci_read_config_byte(amd_smbus_dev, PCI_REVISION_ID, &rev); + if ((rev > 0x3b) || (rev < 0x30)) { + pci_dev_put(amd_smbus_dev); + amd_smbus_dev = NULL; + return 0; + } + + amd_ohci_iso_count++; + + if (!amd_hb_dev) + amd_hb_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x9600, NULL); + + ohci->flags |= OHCI_QUIRK_AMD_ISO; + ohci_dbg(ohci, "enabled AMD ISO transfers 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. + * + * Assume the system is configured to have USB 1.1 ISO transfers going + * to or from a USB device. Without this quirk, that stream may stutter + * or have breaks occasionally. For transfers going to speakers, this + * makes a very audible mess... + * + * That audio playback corruption is due to the audio stream getting + * interrupted occasionally when the link goes in lower power state + * This USB quirk prevents the link going into that lower power state + * during audio playback or other ISO operations. + */ +static void quirk_amd_pll(int on) +{ + u32 addr; + u32 val; + u32 bit = (on > 0) ? 1 : 0; + + pci_read_config_dword(amd_smbus_dev, AB_REG_BAR, &addr); + + /* BIT names/meanings are NDA-protected, sorry ... */ + + outl(AX_INDXC, AB_INDX(addr)); + outl(0x40, AB_DATA(addr)); + outl(AX_DATAC, AB_INDX(addr)); + val = inl(AB_DATA(addr)); + val &= ~((1 << 3) | (1 << 4) | (1 << 9)); + val |= (bit << 3) | ((!bit) << 4) | ((!bit) << 9); + outl(val, AB_DATA(addr)); + + if (amd_hb_dev) { + addr = PCIE_P_CNTL; + pci_write_config_dword(amd_hb_dev, NB_PCIE_INDX_ADDR, addr); + + pci_read_config_dword(amd_hb_dev, NB_PCIE_INDX_DATA, &val); + val &= ~(1 | (1 << 3) | (1 << 4) | (1 << 9) | (1 << 12)); + val |= bit | (bit << 3) | (bit << 12); + val |= ((!bit) << 4) | ((!bit) << 9); + pci_write_config_dword(amd_hb_dev, NB_PCIE_INDX_DATA, val); + + addr = BIF_NB; + pci_write_config_dword(amd_hb_dev, NB_PCIE_INDX_ADDR, addr); + + pci_read_config_dword(amd_hb_dev, NB_PCIE_INDX_DATA, &val); + val &= ~(1 << 8); + val |= bit << 8; + pci_write_config_dword(amd_hb_dev, NB_PCIE_INDX_DATA, val); + } +} + +static void amd_iso_dev_put(void) +{ + amd_ohci_iso_count--; + if (amd_ohci_iso_count == 0) { + if (amd_smbus_dev) { + pci_dev_put(amd_smbus_dev); + amd_smbus_dev = NULL; + } + if (amd_hb_dev) { + pci_dev_put(amd_hb_dev); + amd_hb_dev = NULL; + } + } + +} + /* List of quirks for OHCI */ static const struct pci_device_id ohci_pci_quirks[] = { { @@ -181,6 +300,19 @@ static const struct pci_device_id ohci_pci_quirks[] = { PCI_DEVICE(PCI_VENDOR_ID_ITE, 0x8152), .driver_data = (unsigned long) broken_suspend, }, + { + PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4397), + .driver_data = (unsigned long)ohci_quirk_amd700, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4398), + .driver_data = (unsigned long)ohci_quirk_amd700, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4399), + .driver_data = (unsigned long)ohci_quirk_amd700, + }, + /* FIXME for some of the early AMD 760 southbridges, OHCI * won't work at all. blacklist them. */ @@ -327,7 +459,6 @@ static const struct hc_driver ohci_pci_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c index 28b458f20cc3..e306ca6aef3d 100644 --- a/drivers/usb/host/ohci-pnx4008.c +++ b/drivers/usb/host/ohci-pnx4008.c @@ -21,13 +21,12 @@ #include <linux/platform_device.h> #include <linux/i2c.h> -#include <asm/hardware.h> +#include <mach/hardware.h> #include <asm/io.h> -#include <asm/mach-types.h> -#include <asm/arch/platform.h> -#include <asm/arch/irqs.h> -#include <asm/arch/gpio.h> +#include <mach/platform.h> +#include <mach/irqs.h> +#include <mach/gpio.h> #define USB_CTRL IO_ADDRESS(PNX4008_PWRMAN_BASE + 0x64) @@ -109,8 +108,6 @@ static struct clk *usb_clk; static int isp1301_probe(struct i2c_adapter *adap); static int isp1301_detach(struct i2c_client *client); -static int isp1301_command(struct i2c_client *client, unsigned int cmd, - void *arg); static const unsigned short normal_i2c[] = { ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END }; @@ -123,30 +120,37 @@ static struct i2c_client_address_data addr_data = { }; struct i2c_driver isp1301_driver = { - .class = I2C_CLASS_HWMON, + .driver = { + .name = "isp1301_pnx", + }, .attach_adapter = isp1301_probe, .detach_client = isp1301_detach, - .command = isp1301_command }; static int isp1301_attach(struct i2c_adapter *adap, int addr, int kind) { struct i2c_client *c; + int err; c = kzalloc(sizeof(*c), GFP_KERNEL); - if (!c) return -ENOMEM; - strcpy(c->name, "isp1301"); + strlcpy(c->name, "isp1301_pnx", I2C_NAME_SIZE); c->flags = 0; c->addr = addr; c->adapter = adap; c->driver = &isp1301_driver; + err = i2c_attach_client(c); + if (err) { + kfree(c); + return err; + } + isp1301_i2c_client = c; - return i2c_attach_client(c); + return 0; } static int isp1301_probe(struct i2c_adapter *adap) @@ -161,13 +165,6 @@ static int isp1301_detach(struct i2c_client *client) return 0; } -/* No commands defined */ -static int isp1301_command(struct i2c_client *client, unsigned int cmd, - void *arg) -{ - return 0; -} - static void i2c_write(u8 buf, u8 subaddr) { char tmpbuf[2]; @@ -280,7 +277,6 @@ static const struct hc_driver ohci_pnx4008_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -335,7 +331,7 @@ static int __devinit usb_hcd_pnx4008_probe(struct platform_device *pdev) int ret = 0, irq; - dev_dbg(&pdev->dev, "%s: " DRIVER_INFO " (pnx4008)\n", hcd_name); + dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (pnx4008)\n", hcd_name); if (usb_disabled()) { err("USB is disabled"); ret = -ENODEV; @@ -389,7 +385,7 @@ static int __devinit usb_hcd_pnx4008_probe(struct platform_device *pdev) while ((__raw_readl(USB_OTG_CLK_STAT) & USB_CLOCK_MASK) != USB_CLOCK_MASK) ; - hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd (driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { err("Failed to allocate HC buffer"); ret = -ENOMEM; diff --git a/drivers/usb/host/ohci-pnx8550.c b/drivers/usb/host/ohci-pnx8550.c index 605d59cba28e..28467e288a93 100644 --- a/drivers/usb/host/ohci-pnx8550.c +++ b/drivers/usb/host/ohci-pnx8550.c @@ -201,7 +201,6 @@ static const struct hc_driver ohci_pnx8550_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index a67252791223..7ac53264ead3 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -14,8 +14,8 @@ */ #include <linux/signal.h> +#include <linux/of_platform.h> -#include <asm/of_platform.h> #include <asm/prom.h> @@ -72,7 +72,6 @@ static const struct hc_driver ohci_ppc_of_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-ppc-soc.c b/drivers/usb/host/ohci-ppc-soc.c index 523c30125577..cd3398b675b2 100644 --- a/drivers/usb/host/ohci-ppc-soc.c +++ b/drivers/usb/host/ohci-ppc-soc.c @@ -172,7 +172,6 @@ static const struct hc_driver ohci_ppc_soc_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c index c1935ae537f8..2089d8a46c4b 100644 --- a/drivers/usb/host/ohci-ps3.c +++ b/drivers/usb/host/ohci-ps3.c @@ -68,7 +68,6 @@ static const struct hc_driver ps3_ohci_hc_driver = { .get_frame_number = ohci_get_frame, .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, .start_port_reset = ohci_start_port_reset, #if defined(CONFIG_PM) .bus_suspend = ohci_bus_suspend, @@ -129,7 +128,7 @@ static int ps3_ohci_probe(struct ps3_system_bus_device *dev) dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ - hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev->core.bus_id); + hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev_name(&dev->core)); if (!hcd) { dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 127b15799024..e294d430733b 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -23,18 +23,90 @@ #include <linux/signal.h> #include <linux/platform_device.h> #include <linux/clk.h> +#include <mach/ohci.h> -#include <asm/mach-types.h> -#include <asm/hardware.h> -#include <asm/arch/pxa-regs.h> -#include <asm/arch/pxa2xx-regs.h> /* FIXME: for PSSR */ -#include <asm/arch/ohci.h> +/* + * UHC: USB Host Controller (OHCI-like) register definitions + */ +#define UHCREV (0x0000) /* UHC HCI Spec Revision */ +#define UHCHCON (0x0004) /* UHC Host Control Register */ +#define UHCCOMS (0x0008) /* UHC Command Status Register */ +#define UHCINTS (0x000C) /* UHC Interrupt Status Register */ +#define UHCINTE (0x0010) /* UHC Interrupt Enable */ +#define UHCINTD (0x0014) /* UHC Interrupt Disable */ +#define UHCHCCA (0x0018) /* UHC Host Controller Comm. Area */ +#define UHCPCED (0x001C) /* UHC Period Current Endpt Descr */ +#define UHCCHED (0x0020) /* UHC Control Head Endpt Descr */ +#define UHCCCED (0x0024) /* UHC Control Current Endpt Descr */ +#define UHCBHED (0x0028) /* UHC Bulk Head Endpt Descr */ +#define UHCBCED (0x002C) /* UHC Bulk Current Endpt Descr */ +#define UHCDHEAD (0x0030) /* UHC Done Head */ +#define UHCFMI (0x0034) /* UHC Frame Interval */ +#define UHCFMR (0x0038) /* UHC Frame Remaining */ +#define UHCFMN (0x003C) /* UHC Frame Number */ +#define UHCPERS (0x0040) /* UHC Periodic Start */ +#define UHCLS (0x0044) /* UHC Low Speed Threshold */ + +#define UHCRHDA (0x0048) /* UHC Root Hub Descriptor A */ +#define UHCRHDA_NOCP (1 << 12) /* No over current protection */ +#define UHCRHDA_OCPM (1 << 11) /* Over Current Protection Mode */ +#define UHCRHDA_POTPGT(x) \ + (((x) & 0xff) << 24) /* Power On To Power Good Time */ + +#define UHCRHDB (0x004C) /* UHC Root Hub Descriptor B */ +#define UHCRHS (0x0050) /* UHC Root Hub Status */ +#define UHCRHPS1 (0x0054) /* UHC Root Hub Port 1 Status */ +#define UHCRHPS2 (0x0058) /* UHC Root Hub Port 2 Status */ +#define UHCRHPS3 (0x005C) /* UHC Root Hub Port 3 Status */ + +#define UHCSTAT (0x0060) /* UHC Status Register */ +#define UHCSTAT_UPS3 (1 << 16) /* USB Power Sense Port3 */ +#define UHCSTAT_SBMAI (1 << 15) /* System Bus Master Abort Interrupt*/ +#define UHCSTAT_SBTAI (1 << 14) /* System Bus Target Abort Interrupt*/ +#define UHCSTAT_UPRI (1 << 13) /* USB Port Resume Interrupt */ +#define UHCSTAT_UPS2 (1 << 12) /* USB Power Sense Port 2 */ +#define UHCSTAT_UPS1 (1 << 11) /* USB Power Sense Port 1 */ +#define UHCSTAT_HTA (1 << 10) /* HCI Target Abort */ +#define UHCSTAT_HBA (1 << 8) /* HCI Buffer Active */ +#define UHCSTAT_RWUE (1 << 7) /* HCI Remote Wake Up Event */ + +#define UHCHR (0x0064) /* UHC Reset Register */ +#define UHCHR_SSEP3 (1 << 11) /* Sleep Standby Enable for Port3 */ +#define UHCHR_SSEP2 (1 << 10) /* Sleep Standby Enable for Port2 */ +#define UHCHR_SSEP1 (1 << 9) /* Sleep Standby Enable for Port1 */ +#define UHCHR_PCPL (1 << 7) /* Power control polarity low */ +#define UHCHR_PSPL (1 << 6) /* Power sense polarity low */ +#define UHCHR_SSE (1 << 5) /* Sleep Standby Enable */ +#define UHCHR_UIT (1 << 4) /* USB Interrupt Test */ +#define UHCHR_SSDC (1 << 3) /* Simulation Scale Down Clock */ +#define UHCHR_CGR (1 << 2) /* Clock Generation Reset */ +#define UHCHR_FHR (1 << 1) /* Force Host Controller Reset */ +#define UHCHR_FSBIR (1 << 0) /* Force System Bus Iface Reset */ + +#define UHCHIE (0x0068) /* UHC Interrupt Enable Register*/ +#define UHCHIE_UPS3IE (1 << 14) /* Power Sense Port3 IntEn */ +#define UHCHIE_UPRIE (1 << 13) /* Port Resume IntEn */ +#define UHCHIE_UPS2IE (1 << 12) /* Power Sense Port2 IntEn */ +#define UHCHIE_UPS1IE (1 << 11) /* Power Sense Port1 IntEn */ +#define UHCHIE_TAIE (1 << 10) /* HCI Interface Transfer Abort + Interrupt Enable*/ +#define UHCHIE_HBAIE (1 << 8) /* HCI Buffer Active IntEn */ +#define UHCHIE_RWIE (1 << 7) /* Remote Wake-up IntEn */ + +#define UHCHIT (0x006C) /* UHC Interrupt Test register */ #define PXA_UHC_MAX_PORTNUM 3 -#define UHCRHPS(x) __REG2( 0x4C000050, (x)<<2 ) +struct pxa27x_ohci { + /* must be 1st member here for hcd_to_ohci() to work */ + struct ohci_hcd ohci; -static struct clk *usb_clk; + struct device *dev; + struct clk *clk; + void __iomem *mmio_base; +}; + +#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)hcd_to_ohci(hcd) /* PMM_NPS_MODE -- PMM Non-power switching mode @@ -46,30 +118,35 @@ static struct clk *usb_clk; PMM_PERPORT_MODE -- PMM per port switching mode Ports are powered individually. */ -static int pxa27x_ohci_select_pmm( int mode ) +static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) { - switch ( mode ) { + uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); + uint32_t uhcrhdb = __raw_readl(ohci->mmio_base + UHCRHDB); + + switch (mode) { case PMM_NPS_MODE: - UHCRHDA |= RH_A_NPS; + uhcrhda |= RH_A_NPS; break; case PMM_GLOBAL_MODE: - UHCRHDA &= ~(RH_A_NPS & RH_A_PSM); + uhcrhda &= ~(RH_A_NPS & RH_A_PSM); break; case PMM_PERPORT_MODE: - UHCRHDA &= ~(RH_A_NPS); - UHCRHDA |= RH_A_PSM; + uhcrhda &= ~(RH_A_NPS); + uhcrhda |= RH_A_PSM; /* Set port power control mask bits, only 3 ports. */ - UHCRHDB |= (0x7<<17); + uhcrhdb |= (0x7<<17); break; default: printk( KERN_ERR "Invalid mode %d, set to non-power switch mode.\n", mode ); - UHCRHDA |= RH_A_NPS; + uhcrhda |= RH_A_NPS; } + __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); + __raw_writel(uhcrhdb, ohci->mmio_base + UHCRHDB); return 0; } @@ -77,57 +154,110 @@ extern int usb_disabled(void); /*-------------------------------------------------------------------------*/ -static int pxa27x_start_hc(struct device *dev) +static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, + struct pxaohci_platform_data *inf) +{ + uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); + uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); + + if (inf->flags & ENABLE_PORT1) + uhchr &= ~UHCHR_SSEP1; + + if (inf->flags & ENABLE_PORT2) + uhchr &= ~UHCHR_SSEP2; + + if (inf->flags & ENABLE_PORT3) + uhchr &= ~UHCHR_SSEP3; + + if (inf->flags & POWER_CONTROL_LOW) + uhchr |= UHCHR_PCPL; + + if (inf->flags & POWER_SENSE_LOW) + uhchr |= UHCHR_PSPL; + + if (inf->flags & NO_OC_PROTECTION) + uhcrhda |= UHCRHDA_NOCP; + + if (inf->flags & OC_MODE_PERPORT) + uhcrhda |= UHCRHDA_OCPM; + + if (inf->power_on_delay) { + uhcrhda &= ~UHCRHDA_POTPGT(0xff); + uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2); + } + + __raw_writel(uhchr, ohci->mmio_base + UHCHR); + __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); +} + +static inline void pxa27x_reset_hc(struct pxa27x_ohci *ohci) +{ + uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); + + __raw_writel(uhchr | UHCHR_FHR, ohci->mmio_base + UHCHR); + udelay(11); + __raw_writel(uhchr & ~UHCHR_FHR, ohci->mmio_base + UHCHR); +} + +#ifdef CONFIG_CPU_PXA27x +extern void pxa27x_clear_otgph(void); +#else +#define pxa27x_clear_otgph() do {} while (0) +#endif + +static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) { int retval = 0; struct pxaohci_platform_data *inf; + uint32_t uhchr; inf = dev->platform_data; - clk_enable(usb_clk); + clk_enable(ohci->clk); - UHCHR |= UHCHR_FHR; - udelay(11); - UHCHR &= ~UHCHR_FHR; + pxa27x_reset_hc(ohci); + + uhchr = __raw_readl(ohci->mmio_base + UHCHR) | UHCHR_FSBIR; + __raw_writel(uhchr, ohci->mmio_base + UHCHR); - UHCHR |= UHCHR_FSBIR; - while (UHCHR & UHCHR_FSBIR) + while (__raw_readl(ohci->mmio_base + UHCHR) & UHCHR_FSBIR) cpu_relax(); + pxa27x_setup_hc(ohci, inf); + if (inf->init) retval = inf->init(dev); if (retval < 0) return retval; - UHCHR &= ~UHCHR_SSE; - - UHCHIE = (UHCHIE_UPRIE | UHCHIE_RWIE); + 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); /* Clear any OTG Pin Hold */ - if (cpu_is_pxa27x() && (PSSR & PSSR_OTGPH)) - PSSR |= PSSR_OTGPH; - + pxa27x_clear_otgph(); return 0; } -static void pxa27x_stop_hc(struct device *dev) +static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev) { struct pxaohci_platform_data *inf; + uint32_t uhccoms; inf = dev->platform_data; if (inf->exit) inf->exit(dev); - UHCHR |= UHCHR_FHR; - udelay(11); - UHCHR &= ~UHCHR_FHR; + pxa27x_reset_hc(ohci); - UHCCOMS |= 1; + /* Host Controller Reset */ + uhccoms = __raw_readl(ohci->mmio_base + UHCCOMS) | 0x01; + __raw_writel(uhccoms, ohci->mmio_base + UHCCOMS); udelay(10); - clk_disable(usb_clk); + clk_disable(ohci->clk); } @@ -148,18 +278,22 @@ static void pxa27x_stop_hc(struct device *dev) */ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device *pdev) { - int retval; + int retval, irq; struct usb_hcd *hcd; struct pxaohci_platform_data *inf; + struct pxa27x_ohci *ohci; + struct resource *r; + struct clk *usb_clk; inf = pdev->dev.platform_data; if (!inf) return -ENODEV; - if (pdev->resource[1].flags != IORESOURCE_IRQ) { - pr_debug ("resource[1] is not IORESOURCE_IRQ"); - return -ENOMEM; + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + pr_err("no resource of IORESOURCE_IRQ"); + return -ENXIO; } usb_clk = clk_get(&pdev->dev, "USBCLK"); @@ -169,8 +303,16 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x"); if (!hcd) return -ENOMEM; - hcd->rsrc_start = pdev->resource[0].start; - hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) { + pr_err("no resource of IORESOURCE_MEM"); + retval = -ENXIO; + goto err1; + } + + hcd->rsrc_start = r->start; + hcd->rsrc_len = resource_size(r); if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { pr_debug("request_mem_region failed"); @@ -185,24 +327,30 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device goto err2; } - if ((retval = pxa27x_start_hc(&pdev->dev)) < 0) { + /* initialize "struct pxa27x_ohci" */ + ohci = (struct pxa27x_ohci *)hcd_to_ohci(hcd); + ohci->dev = &pdev->dev; + ohci->clk = usb_clk; + ohci->mmio_base = (void __iomem *)hcd->regs; + + if ((retval = pxa27x_start_hc(ohci, &pdev->dev)) < 0) { pr_debug("pxa27x_start_hc failed"); goto err3; } /* Select Power Management Mode */ - pxa27x_ohci_select_pmm(inf->port_mode); + pxa27x_ohci_select_pmm(ohci, inf->port_mode); if (inf->power_budget) hcd->power_budget = inf->power_budget; ohci_hcd_init(hcd_to_ohci(hcd)); - retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED); + retval = usb_add_hcd(hcd, irq, IRQF_DISABLED); if (retval == 0) return retval; - pxa27x_stop_hc(&pdev->dev); + pxa27x_stop_hc(ohci, &pdev->dev); err3: iounmap(hcd->regs); err2: @@ -229,12 +377,14 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device */ void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev) { + struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + usb_remove_hcd(hcd); - pxa27x_stop_hc(&pdev->dev); + pxa27x_stop_hc(ohci, &pdev->dev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); - clk_put(usb_clk); + clk_put(ohci->clk); } /*-------------------------------------------------------------------------*/ @@ -267,7 +417,7 @@ ohci_pxa27x_start (struct usb_hcd *hcd) static const struct hc_driver ohci_pxa27x_hc_driver = { .description = hcd_name, .product_desc = "PXA27x OHCI", - .hcd_priv_size = sizeof(struct ohci_hcd), + .hcd_priv_size = sizeof(struct pxa27x_ohci), /* * generic hardware linkage @@ -299,7 +449,6 @@ static const struct hc_driver ohci_pxa27x_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -332,13 +481,13 @@ static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev) static int ohci_hcd_pxa27x_drv_suspend(struct platform_device *pdev, pm_message_t state) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); - if (time_before(jiffies, ohci->next_statechange)) + if (time_before(jiffies, ohci->ohci.next_statechange)) msleep(5); - ohci->next_statechange = jiffies; + ohci->ohci.next_statechange = jiffies; - pxa27x_stop_hc(&pdev->dev); + pxa27x_stop_hc(ohci, &pdev->dev); hcd->state = HC_STATE_SUSPENDED; return 0; @@ -347,14 +496,14 @@ static int ohci_hcd_pxa27x_drv_suspend(struct platform_device *pdev, pm_message_ static int ohci_hcd_pxa27x_drv_resume(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); int status; - if (time_before(jiffies, ohci->next_statechange)) + if (time_before(jiffies, ohci->ohci.next_statechange)) msleep(5); - ohci->next_statechange = jiffies; + ohci->ohci.next_statechange = jiffies; - if ((status = pxa27x_start_hc(&pdev->dev)) < 0) + if ((status = pxa27x_start_hc(ohci, &pdev->dev)) < 0) return status; ohci_finish_controller_resume(hcd); diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index 9b547407c934..c2d80f80448b 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -49,6 +49,9 @@ __acquires(ohci->lock) switch (usb_pipetype (urb->pipe)) { case PIPE_ISOCHRONOUS: ohci_to_hcd(ohci)->self.bandwidth_isoc_reqs--; + if (ohci_to_hcd(ohci)->self.bandwidth_isoc_reqs == 0 + && quirk_amdiso(ohci)) + quirk_amd_pll(1); break; case PIPE_INTERRUPT: ohci_to_hcd(ohci)->self.bandwidth_int_reqs--; @@ -159,9 +162,6 @@ static int ed_schedule (struct ohci_hcd *ohci, struct ed *ed) { int branch; - if (ohci_to_hcd(ohci)->state == HC_STATE_QUIESCING) - return -EAGAIN; - ed->state = ED_OPER; ed->ed_prev = NULL; ed->ed_next = NULL; @@ -680,6 +680,9 @@ static void td_submit_urb ( data + urb->iso_frame_desc [cnt].offset, urb->iso_frame_desc [cnt].length, urb, cnt); } + if (ohci_to_hcd(ohci)->self.bandwidth_isoc_reqs == 0 + && quirk_amdiso(ohci)) + quirk_amd_pll(0); periodic = ohci_to_hcd(ohci)->self.bandwidth_isoc_reqs++ == 0 && ohci_to_hcd(ohci)->self.bandwidth_int_reqs == 0; break; diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index 3c7a740cfe0c..f46af7a718d4 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -22,8 +22,8 @@ #include <linux/platform_device.h> #include <linux/clk.h> -#include <asm/hardware.h> -#include <asm/arch/usb-control.h> +#include <mach/hardware.h> +#include <mach/usb-control.h> #define valid_port(idx) ((idx) == 1 || (idx) == 2) @@ -466,7 +466,6 @@ static const struct hc_driver ohci_s3c2410_hc_driver = { */ .hub_status_data = ohci_s3c2410_hub_status_data, .hub_control = ohci_s3c2410_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index 2e9dceb9bb99..e4bbe8e188e4 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -13,10 +13,10 @@ * This file is licenced under the GPL. */ -#include <asm/hardware.h> +#include <mach/hardware.h> #include <asm/mach-types.h> -#include <asm/arch/assabet.h> -#include <asm/arch/badge4.h> +#include <mach/assabet.h> +#include <mach/badge4.h> #include <asm/hardware/sa1111.h> #ifndef CONFIG_SA1111 @@ -231,7 +231,6 @@ static const struct hc_driver ohci_sa1111_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c index e7ee607278fe..60f03cc7ec4f 100644 --- a/drivers/usb/host/ohci-sh.c +++ b/drivers/usb/host/ohci-sh.c @@ -68,7 +68,6 @@ static const struct hc_driver ohci_sh_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c index e610698c6b60..cff23637cfcc 100644 --- a/drivers/usb/host/ohci-sm501.c +++ b/drivers/usb/host/ohci-sm501.c @@ -75,7 +75,6 @@ static const struct hc_driver ohci_sm501_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -143,7 +142,7 @@ static int ohci_hcd_sm501_drv_probe(struct platform_device *pdev) goto err2; } - hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto err2; diff --git a/drivers/usb/host/ohci-ssb.c b/drivers/usb/host/ohci-ssb.c index 7275186db315..23fd6a886bdd 100644 --- a/drivers/usb/host/ohci-ssb.c +++ b/drivers/usb/host/ohci-ssb.c @@ -81,7 +81,6 @@ static const struct hc_driver ssb_ohci_hc_driver = { .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -113,7 +112,7 @@ static int ssb_ohci_attach(struct ssb_device *dev) ssb_device_enable(dev, flags); hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev, - dev->dev->bus_id); + dev_name(dev->dev)); if (!hcd) goto err_dev_disable; ohcidev = hcd_to_ssb_ohci(hcd); diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c new file mode 100644 index 000000000000..f9f134af0bd1 --- /dev/null +++ b/drivers/usb/host/ohci-tmio.c @@ -0,0 +1,376 @@ +/* + * OHCI HCD(Host Controller Driver) for USB. + * + *(C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + *(C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> + *(C) Copyright 2002 Hewlett-Packard Company + * + * Bus glue for Toshiba Mobile IO(TMIO) Controller's OHCI core + * (C) Copyright 2005 Chris Humbert <mahadri-usb@drigon.com> + * (C) Copyright 2007, 2008 Dmitry Baryshkov <dbaryshkov@gmail.com> + * + * This is known to work with the following variants: + * TC6393XB revision 3 (32kB SRAM) + * + * The TMIO's OHCI core DMAs through a small internal buffer that + * is directly addressable by the CPU. + * + * Written from sparse documentation from Toshiba and Sharp's driver + * for the 2.4 kernel, + * usb-ohci-tc6393.c(C) Copyright 2004 Lineo Solutions, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/*#include <linux/fs.h> +#include <linux/mount.h> +#include <linux/pagemap.h> +#include <linux/init.h> +#include <linux/namei.h> +#include <linux/sched.h>*/ +#include <linux/platform_device.h> +#include <linux/mfd/core.h> +#include <linux/mfd/tmio.h> +#include <linux/dma-mapping.h> + +/*-------------------------------------------------------------------------*/ + +/* + * USB Host Controller Configuration Register + */ +#define CCR_REVID 0x08 /* b Revision ID */ +#define CCR_BASE 0x10 /* l USB Control Register Base Address Low */ +#define CCR_ILME 0x40 /* b Internal Local Memory Enable */ +#define CCR_PM 0x4c /* w Power Management */ +#define CCR_INTC 0x50 /* b INT Control */ +#define CCR_LMW1L 0x54 /* w Local Memory Window 1 LMADRS Low */ +#define CCR_LMW1H 0x56 /* w Local Memory Window 1 LMADRS High */ +#define CCR_LMW1BL 0x58 /* w Local Memory Window 1 Base Address Low */ +#define CCR_LMW1BH 0x5A /* w Local Memory Window 1 Base Address High */ +#define CCR_LMW2L 0x5C /* w Local Memory Window 2 LMADRS Low */ +#define CCR_LMW2H 0x5E /* w Local Memory Window 2 LMADRS High */ +#define CCR_LMW2BL 0x60 /* w Local Memory Window 2 Base Address Low */ +#define CCR_LMW2BH 0x62 /* w Local Memory Window 2 Base Address High */ +#define CCR_MISC 0xFC /* b MISC */ + +#define CCR_PM_GKEN 0x0001 +#define CCR_PM_CKRNEN 0x0002 +#define CCR_PM_USBPW1 0x0004 +#define CCR_PM_USBPW2 0x0008 +#define CCR_PM_USBPW3 0x0008 +#define CCR_PM_PMEE 0x0100 +#define CCR_PM_PMES 0x8000 + +/*-------------------------------------------------------------------------*/ + +struct tmio_hcd { + void __iomem *ccr; + spinlock_t lock; /* protects RMW cycles */ +}; + +#define hcd_to_tmio(hcd) ((struct tmio_hcd *)(hcd_to_ohci(hcd) + 1)) + +/*-------------------------------------------------------------------------*/ + +static void tmio_write_pm(struct platform_device *dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + u16 pm; + unsigned long flags; + + spin_lock_irqsave(&tmio->lock, flags); + + pm = CCR_PM_GKEN | CCR_PM_CKRNEN | + CCR_PM_PMEE | CCR_PM_PMES; + + tmio_iowrite16(pm, tmio->ccr + CCR_PM); + spin_unlock_irqrestore(&tmio->lock, flags); +} + +static void tmio_stop_hc(struct platform_device *dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + u16 pm; + + pm = CCR_PM_GKEN | CCR_PM_CKRNEN; + switch (ohci->num_ports) { + default: + dev_err(&dev->dev, "Unsupported amount of ports: %d\n", ohci->num_ports); + case 3: + pm |= CCR_PM_USBPW3; + case 2: + pm |= CCR_PM_USBPW2; + case 1: + pm |= CCR_PM_USBPW1; + } + tmio_iowrite8(0, tmio->ccr + CCR_INTC); + tmio_iowrite8(0, tmio->ccr + CCR_ILME); + tmio_iowrite16(0, tmio->ccr + CCR_BASE); + tmio_iowrite16(0, tmio->ccr + CCR_BASE + 2); + tmio_iowrite16(pm, tmio->ccr + CCR_PM); +} + +static void tmio_start_hc(struct platform_device *dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + unsigned long base = hcd->rsrc_start; + + tmio_write_pm(dev); + tmio_iowrite16(base, tmio->ccr + CCR_BASE); + tmio_iowrite16(base >> 16, tmio->ccr + CCR_BASE + 2); + tmio_iowrite8(1, tmio->ccr + CCR_ILME); + tmio_iowrite8(2, tmio->ccr + CCR_INTC); + + dev_info(&dev->dev, "revision %d @ 0x%08llx, irq %d\n", + tmio_ioread8(tmio->ccr + CCR_REVID), hcd->rsrc_start, hcd->irq); +} + +static int ohci_tmio_start(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + int ret; + + if ((ret = ohci_init(ohci)) < 0) + return ret; + + if ((ret = ohci_run(ohci)) < 0) { + err("can't start %s", hcd->self.bus_name); + ohci_stop(hcd); + return ret; + } + + return 0; +} + +static const struct hc_driver ohci_tmio_hc_driver = { + .description = hcd_name, + .product_desc = "TMIO OHCI USB Host Controller", + .hcd_priv_size = sizeof(struct ohci_hcd) + sizeof (struct tmio_hcd), + + /* generic hardware linkage */ + .irq = ohci_irq, + .flags = HCD_USB11 | HCD_MEMORY | HCD_LOCAL_MEM, + + /* basic lifecycle operations */ + .start = ohci_tmio_start, + .stop = ohci_stop, + .shutdown = ohci_shutdown, + + /* managing i/o requests and associated device resources */ + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + + /* scheduling support */ + .get_frame_number = ohci_get_frame, + + /* root hub support */ + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, +#ifdef CONFIG_PM + .bus_suspend = ohci_bus_suspend, + .bus_resume = ohci_bus_resume, +#endif + .start_port_reset = ohci_start_port_reset, +}; + +/*-------------------------------------------------------------------------*/ +static struct platform_driver ohci_hcd_tmio_driver; + +static int __devinit ohci_hcd_tmio_drv_probe(struct platform_device *dev) +{ + struct mfd_cell *cell = dev->dev.platform_data; + struct resource *regs = platform_get_resource(dev, IORESOURCE_MEM, 0); + struct resource *config = platform_get_resource(dev, IORESOURCE_MEM, 1); + struct resource *sram = platform_get_resource(dev, IORESOURCE_MEM, 2); + int irq = platform_get_irq(dev, 0); + struct tmio_hcd *tmio; + struct ohci_hcd *ohci; + struct usb_hcd *hcd; + int ret; + + if (usb_disabled()) + return -ENODEV; + + if (!cell) + return -EINVAL; + + hcd = usb_create_hcd(&ohci_tmio_hc_driver, &dev->dev, dev->dev.bus_id); + if (!hcd) { + ret = -ENOMEM; + goto err_usb_create_hcd; + } + + hcd->rsrc_start = regs->start; + hcd->rsrc_len = regs->end - regs->start + 1; + + tmio = hcd_to_tmio(hcd); + + spin_lock_init(&tmio->lock); + + tmio->ccr = ioremap(config->start, config->end - config->start + 1); + if (!tmio->ccr) { + ret = -ENOMEM; + goto err_ioremap_ccr; + } + + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) { + ret = -ENOMEM; + goto err_ioremap_regs; + } + + if (!dma_declare_coherent_memory(&dev->dev, sram->start, + sram->start, + sram->end - sram->start + 1, + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE)) { + ret = -EBUSY; + goto err_dma_declare; + } + + if (cell->enable) { + ret = cell->enable(dev); + if (ret) + goto err_enable; + } + + tmio_start_hc(dev); + ohci = hcd_to_ohci(hcd); + ohci_hcd_init(ohci); + + ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); + if (ret) + goto err_add_hcd; + + if (ret == 0) + return ret; + + usb_remove_hcd(hcd); + +err_add_hcd: + tmio_stop_hc(dev); + if (cell->disable) + cell->disable(dev); +err_enable: + dma_release_declared_memory(&dev->dev); +err_dma_declare: + iounmap(hcd->regs); +err_ioremap_regs: + iounmap(tmio->ccr); +err_ioremap_ccr: + usb_put_hcd(hcd); +err_usb_create_hcd: + + return ret; +} + +static int __devexit ohci_hcd_tmio_drv_remove(struct platform_device *dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + struct mfd_cell *cell = dev->dev.platform_data; + + usb_remove_hcd(hcd); + tmio_stop_hc(dev); + if (cell->disable) + cell->disable(dev); + dma_release_declared_memory(&dev->dev); + iounmap(hcd->regs); + iounmap(tmio->ccr); + usb_put_hcd(hcd); + + platform_set_drvdata(dev, NULL); + + return 0; +} + +#ifdef CONFIG_PM +static int ohci_hcd_tmio_drv_suspend(struct platform_device *dev, pm_message_t state) +{ + struct mfd_cell *cell = dev->dev.platform_data; + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + unsigned long flags; + u8 misc; + int ret; + + if (time_before(jiffies, ohci->next_statechange)) + msleep(5); + ohci->next_statechange = jiffies; + + spin_lock_irqsave(&tmio->lock, flags); + + misc = tmio_ioread8(tmio->ccr + CCR_MISC); + misc |= 1 << 3; /* USSUSP */ + tmio_iowrite8(misc, tmio->ccr + CCR_MISC); + + spin_unlock_irqrestore(&tmio->lock, flags); + + if (cell->suspend) { + ret = cell->suspend(dev); + if (ret) + return ret; + } + + hcd->state = HC_STATE_SUSPENDED; + + return 0; +} + +static int ohci_hcd_tmio_drv_resume(struct platform_device *dev) +{ + struct mfd_cell *cell = dev->dev.platform_data; + struct usb_hcd *hcd = platform_get_drvdata(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct tmio_hcd *tmio = hcd_to_tmio(hcd); + unsigned long flags; + u8 misc; + int ret; + + if (time_before(jiffies, ohci->next_statechange)) + msleep(5); + ohci->next_statechange = jiffies; + + if (cell->resume) { + ret = cell->resume(dev); + if (ret) + return ret; + } + + tmio_start_hc(dev); + + spin_lock_irqsave(&tmio->lock, flags); + + misc = tmio_ioread8(tmio->ccr + CCR_MISC); + misc &= ~(1 << 3); /* USSUSP */ + tmio_iowrite8(misc, tmio->ccr + CCR_MISC); + + spin_unlock_irqrestore(&tmio->lock, flags); + + ohci_finish_controller_resume(hcd); + + return 0; +} +#else +#define ohci_hcd_tmio_drv_suspend NULL +#define ohci_hcd_tmio_drv_resume NULL +#endif + +static struct platform_driver ohci_hcd_tmio_driver = { + .probe = ohci_hcd_tmio_drv_probe, + .remove = __devexit_p(ohci_hcd_tmio_drv_remove), + .shutdown = usb_hcd_platform_shutdown, + .suspend = ohci_hcd_tmio_drv_suspend, + .resume = ohci_hcd_tmio_drv_resume, + .driver = { + .name = "tmio-ohci", + .owner = THIS_MODULE, + }, +}; diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index dc544ddc7849..222011f6172c 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -371,6 +371,7 @@ struct ohci_hcd { * other external transceivers should be software-transparent */ struct otg_transceiver *transceiver; + void (*start_hnp)(struct ohci_hcd *ohci); /* * memory management for queue data structures @@ -399,6 +400,8 @@ struct ohci_hcd { #define OHCI_QUIRK_ZFMICRO 0x20 /* Compaq ZFMicro chipset*/ #define OHCI_QUIRK_NEC 0x40 /* lost interrupts */ #define OHCI_QUIRK_FRAME_NO 0x80 /* no big endian frame_no shift */ +#define OHCI_QUIRK_HUB_POWER 0x100 /* distrust firmware power/oc setup */ +#define OHCI_QUIRK_AMD_ISO 0x200 /* ISO transfers*/ // there are also chip quirks/bugs in init logic struct work_struct nec_work; /* Worker for NEC quirk */ @@ -426,6 +429,10 @@ static inline int quirk_zfmicro(struct ohci_hcd *ohci) { return ohci->flags & OHCI_QUIRK_ZFMICRO; } +static inline int quirk_amdiso(struct ohci_hcd *ohci) +{ + return ohci->flags & OHCI_QUIRK_AMD_ISO; +} #else static inline int quirk_nec(struct ohci_hcd *ohci) { @@ -435,6 +442,10 @@ static inline int quirk_zfmicro(struct ohci_hcd *ohci) { return 0; } +static inline int quirk_amdiso(struct ohci_hcd *ohci) +{ + return 0; +} #endif /* convert between an hcd pointer and the corresponding ohci_hcd */ @@ -529,15 +540,7 @@ static inline struct usb_hcd *ohci_to_hcd (const struct ohci_hcd *ohci) * Big-endian read/write functions are arch-specific. * Other arches can be added if/when they're needed. * - * REVISIT: arch/powerpc now has readl/writel_be, so the - * definition below can die once the STB04xxx support is - * finally ported over. */ -#if defined(CONFIG_PPC) && !defined(CONFIG_PPC_MERGE) -#define readl_be(addr) in_be32((__force unsigned *)addr) -#define writel_be(val, addr) out_be32((__force unsigned *)addr, val) -#endif - static inline unsigned int _ohci_readl (const struct ohci_hcd *ohci, __hc32 __iomem * regs) { diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 16667342b3c3..c18d8790c410 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -66,7 +66,7 @@ static unsigned short endian; module_param(endian, ushort, 0644); MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)"); -static unsigned short irq_sense = INTL; +static unsigned short irq_sense = 0xff; module_param(irq_sense, ushort, 0644); MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=32, falling edge=0 " "(default=32)"); @@ -118,7 +118,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) r8a66597_write(r8a66597, SCKE, SYSCFG0); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 1000) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & SCKE) != SCKE); @@ -128,7 +128,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) r8a66597_write(r8a66597, USBE, SYSCFG0); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 1000) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & USBE) != USBE); @@ -141,7 +141,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) msleep(1); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 500) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & SCKE) != SCKE); @@ -265,7 +265,7 @@ static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) if (root_port) { *root_port = (devpath[0] & 0x0F) - 1; if (*root_port >= R8A66597_MAX_ROOT_HUB) - err("illegal root port number"); + printk(KERN_ERR "r8a66597: Illegal root port number.\n"); } if (hub_port) *hub_port = devpath[2] & 0x0F; @@ -286,7 +286,7 @@ static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) usbspd = HSMODE; break; default: - err("unknown speed"); + printk(KERN_ERR "r8a66597: unknown speed\n"); break; } @@ -312,9 +312,9 @@ static void put_child_connect_map(struct r8a66597 *r8a66597, int address) static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) { u16 pipenum = pipe->info.pipenum; - unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; - unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; - unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; + const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; + const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; + const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ dma_ch = R8A66597_PIPE_NO_DMA; @@ -385,7 +385,7 @@ static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) struct r8a66597_device *dev; if (is_hub_limit(urb->dev->devpath)) { - err("Externel hub limit reached."); + dev_err(&urb->dev->dev, "External hub limit reached.\n"); return 0; } @@ -406,8 +406,9 @@ static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) return addr; } - err("cannot communicate with a USB device more than 10.(%x)", - r8a66597->address_map); + dev_err(&urb->dev->dev, + "cannot communicate with a USB device more than 10.(%x)\n", + r8a66597->address_map); return 0; } @@ -447,7 +448,8 @@ static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, do { tmp = r8a66597_read(r8a66597, reg); if (i++ > 1000000) { - err("register%lx, loop %x is timeout", reg, loop); + printk(KERN_ERR "r8a66597: register%lx, loop %x " + "is timeout\n", reg, loop); break; } ndelay(1); @@ -675,7 +677,7 @@ static u16 get_empty_pipenum(struct r8a66597 *r8a66597, array[i++] = 1; break; default: - err("Illegal type"); + printk(KERN_ERR "r8a66597: Illegal type\n"); return 0; } @@ -705,7 +707,7 @@ static u16 get_r8a66597_type(__u8 type) r8a66597_type = R8A66597_ISO; break; default: - err("Illegal type"); + printk(KERN_ERR "r8a66597: Illegal type\n"); r8a66597_type = 0x0000; break; } @@ -724,7 +726,7 @@ static u16 get_bufnum(u16 pipenum) else if (check_interrupt(pipenum)) bufnum = 4 + (pipenum - 6); else - err("Illegal pipenum (%d)", pipenum); + printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); return bufnum; } @@ -740,7 +742,7 @@ static u16 get_buf_bsize(u16 pipenum) else if (check_interrupt(pipenum)) buf_bsize = 0; else - err("Illegal pipenum (%d)", pipenum); + printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); return buf_bsize; } @@ -760,10 +762,12 @@ static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, if ((r8a66597->dma_map & (1 << i)) != 0) continue; - info("address %d, EndpointAddress 0x%02x use DMA FIFO", - usb_pipedevice(urb->pipe), - info->dir_in ? USB_ENDPOINT_DIR_MASK + info->epnum - : info->epnum); + dev_info(&dev->udev->dev, + "address %d, EndpointAddress 0x%02x use " + "DMA FIFO\n", usb_pipedevice(urb->pipe), + info->dir_in ? + USB_ENDPOINT_DIR_MASK + info->epnum + : info->epnum); r8a66597->dma_map |= 1 << i; dev->dma_map |= 1 << i; @@ -863,6 +867,32 @@ static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, dev->dma_map = 0; } +static u16 get_interval(struct urb *urb, __u8 interval) +{ + u16 time = 1; + int i; + + if (urb->dev->speed == USB_SPEED_HIGH) { + if (interval > IITV) + time = IITV; + else + time = interval ? interval - 1 : 0; + } else { + if (interval > 128) { + time = IITV; + } else { + /* calculate the nearest value for PIPEPERI */ + for (i = 0; i < 7; i++) { + if ((1 << i) < interval && + (1 << (i + 1) > interval)) + time = 1 << i; + } + } + } + + return time; +} + static unsigned long get_timer_interval(struct urb *urb, __u8 interval) { __u8 i; @@ -901,10 +931,7 @@ static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, info.interval = 0; info.timer_interval = 0; } else { - if (ep->bInterval > IITV) - info.interval = IITV; - else - info.interval = ep->bInterval ? ep->bInterval - 1 : 0; + info.interval = get_interval(urb, ep->bInterval); info.timer_interval = get_timer_interval(urb, ep->bInterval); } if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) @@ -941,11 +968,34 @@ static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) disable_irq_nrdy(r8a66597, pipenum); } +static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) +{ + mod_timer(&r8a66597->rh_timer, + jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); +} + +static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port, + int connect) +{ + struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; + + rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; + rh->scount = R8A66597_MAX_SAMPLING; + if (connect) + rh->port |= 1 << USB_PORT_FEAT_CONNECTION; + else + rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION); + rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION; + + r8a66597_root_hub_start_polling(r8a66597); +} + /* this function must be called with interrupt disabled */ static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, u16 syssts) { if (syssts == SE0) { + r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); return; } @@ -979,13 +1029,10 @@ static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) { struct r8a66597_device *dev = r8a66597->root_hub[port].dev; - r8a66597->root_hub[port].port &= ~(1 << USB_PORT_FEAT_CONNECTION); - r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_C_CONNECTION); - disable_r8a66597_pipe_all(r8a66597, dev); free_usb_address(r8a66597, dev); - r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); + start_root_hub_sampling(r8a66597, port, 0); } /* this function must be called with interrupt disabled */ @@ -1144,7 +1191,7 @@ static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) prepare_status_packet(r8a66597, td); break; default: - err("invalid type."); + printk(KERN_ERR "r8a66597: invalid type.\n"); break; } @@ -1252,7 +1299,7 @@ static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) if (unlikely((tmp & FRDY) == 0)) { pipe_stop(r8a66597, td->pipe); pipe_irq_disable(r8a66597, pipenum); - err("in fifo not ready (%d)", pipenum); + printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum); finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); return; } @@ -1327,7 +1374,7 @@ static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) if (unlikely((tmp & FRDY) == 0)) { pipe_stop(r8a66597, td->pipe); pipe_irq_disable(r8a66597, pipenum); - err("out write fifo not ready. (%d)", pipenum); + printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum); finish_request(r8a66597, td, pipenum, urb, -EPIPE); return; } @@ -1528,23 +1575,6 @@ static void irq_pipe_nrdy(struct r8a66597 *r8a66597) } } -static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) -{ - mod_timer(&r8a66597->rh_timer, - jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); -} - -static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port) -{ - struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; - - rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; - rh->scount = R8A66597_MAX_SAMPLING; - r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_CONNECTION) - | (1 << USB_PORT_FEAT_C_CONNECTION); - r8a66597_root_hub_start_polling(r8a66597); -} - static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) { struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); @@ -1571,7 +1601,7 @@ static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) r8a66597_bclr(r8a66597, ATTCHE, INTENB2); /* start usb bus sampling */ - start_root_hub_sampling(r8a66597, 1); + start_root_hub_sampling(r8a66597, 1, 1); } if (mask2 & DTCH) { r8a66597_write(r8a66597, ~DTCH, INTSTS2); @@ -1586,7 +1616,7 @@ static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) r8a66597_bclr(r8a66597, ATTCHE, INTENB1); /* start usb bus sampling */ - start_root_hub_sampling(r8a66597, 0); + start_root_hub_sampling(r8a66597, 0, 1); } if (mask1 & DTCH) { r8a66597_write(r8a66597, ~DTCH, INTSTS1); @@ -1979,7 +2009,7 @@ static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, return dev; } - err("get_r8a66597_device fail.(%d)\n", addr); + printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr); return NULL; } @@ -2237,17 +2267,18 @@ static int __init_or_module r8a66597_remove(struct platform_device *pdev) #define resource_len(r) (((r)->end - (r)->start) + 1) static int __init r8a66597_probe(struct platform_device *pdev) { - struct resource *res = NULL; + struct resource *res = NULL, *ires; int irq = -1; void __iomem *reg = NULL; struct usb_hcd *hcd = NULL; struct r8a66597 *r8a66597; int ret = 0; int i; + unsigned long irq_trigger; if (pdev->dev.dma_mask) { ret = -EINVAL; - err("dma not support"); + dev_err(&pdev->dev, "dma not supported\n"); goto clean_up; } @@ -2255,21 +2286,25 @@ static int __init r8a66597_probe(struct platform_device *pdev) (char *)hcd_name); if (!res) { ret = -ENODEV; - err("platform_get_resource_byname error."); + dev_err(&pdev->dev, "platform_get_resource_byname error.\n"); goto clean_up; } - irq = platform_get_irq(pdev, 0); - if (irq < 0) { + ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!ires) { ret = -ENODEV; - err("platform_get_irq error."); + dev_err(&pdev->dev, + "platform_get_resource IORESOURCE_IRQ error.\n"); goto clean_up; } + irq = ires->start; + irq_trigger = ires->flags & IRQF_TRIGGER_MASK; + reg = ioremap(res->start, resource_len(res)); if (reg == NULL) { ret = -ENOMEM; - err("ioremap error."); + dev_err(&pdev->dev, "ioremap error.\n"); goto clean_up; } @@ -2277,7 +2312,7 @@ static int __init r8a66597_probe(struct platform_device *pdev) hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); if (!hcd) { ret = -ENOMEM; - err("Failed to create hcd"); + dev_err(&pdev->dev, "Failed to create hcd\n"); goto clean_up; } r8a66597 = hcd_to_r8a66597(hcd); @@ -2302,9 +2337,33 @@ static int __init r8a66597_probe(struct platform_device *pdev) INIT_LIST_HEAD(&r8a66597->child_device); hcd->rsrc_start = res->start; - ret = usb_add_hcd(hcd, irq, IRQF_DISABLED); + + /* irq_sense setting on cmdline takes precedence over resource + * settings, so the introduction of irqflags in IRQ resourse + * won't disturb existing setups */ + switch (irq_sense) { + case INTL: + irq_trigger = IRQF_TRIGGER_LOW; + break; + case 0: + irq_trigger = IRQF_TRIGGER_FALLING; + break; + case 0xff: + if (irq_trigger) + irq_sense = (irq_trigger & IRQF_TRIGGER_LOW) ? + INTL : 0; + else { + irq_sense = INTL; + irq_trigger = IRQF_TRIGGER_LOW; + } + break; + default: + dev_err(&pdev->dev, "Unknown irq_sense value.\n"); + } + + ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger); if (ret != 0) { - err("Failed to add hcd"); + dev_err(&pdev->dev, "Failed to add hcd\n"); goto clean_up; } @@ -2333,7 +2392,8 @@ static int __init r8a66597_init(void) if (usb_disabled()) return -ENODEV; - info("driver %s, %s", hcd_name, DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name, + DRIVER_VERSION); return platform_driver_register(&r8a66597_driver); } module_init(r8a66597_init); diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 426575247b23..e106e9d48d4a 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1026,7 +1026,7 @@ sl811h_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep) if (!list_empty(&hep->urb_list)) msleep(3); if (!list_empty(&hep->urb_list)) - WARN("ep %p not empty?\n", ep); + WARNING("ep %p not empty?\n", ep); kfree(ep); hep->hcpriv = NULL; @@ -1620,22 +1620,26 @@ sl811h_probe(struct platform_device *dev) { struct usb_hcd *hcd; struct sl811 *sl811; - struct resource *addr, *data; + struct resource *addr, *data, *ires; int irq; void __iomem *addr_reg; void __iomem *data_reg; int retval; u8 tmp, ioaddr = 0; + unsigned long irqflags; /* basic sanity checks first. board-specific init logic should * have initialized these three resources and probably board * specific platform_data. we don't probe for IRQs, and do only * minimal sanity checking. */ - irq = platform_get_irq(dev, 0); - if (dev->num_resources < 3 || irq < 0) + ires = platform_get_resource(dev, IORESOURCE_IRQ, 0); + if (dev->num_resources < 3 || !ires) return -ENODEV; + irq = ires->start; + irqflags = ires->flags & IRQF_TRIGGER_MASK; + /* refuse to confuse usbcore */ if (dev->dev.dma_mask) { DBG("no we won't dma\n"); @@ -1674,7 +1678,7 @@ sl811h_probe(struct platform_device *dev) } /* allocate and initialize hcd */ - hcd = usb_create_hcd(&sl811h_hc_driver, &dev->dev, dev->dev.bus_id); + hcd = usb_create_hcd(&sl811h_hc_driver, &dev->dev, dev_name(&dev->dev)); if (!hcd) { retval = -ENOMEM; goto err5; @@ -1717,8 +1721,11 @@ sl811h_probe(struct platform_device *dev) * triggers (e.g. most ARM CPUs). Initial driver stress testing * was on a system with single edge triggering, so most sorts of * triggering arrangement should work. + * + * Use resource IRQ flags if set by platform device setup. */ - retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); + irqflags |= IRQF_SHARED; + retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | irqflags); if (retval != 0) goto err6; diff --git a/drivers/usb/host/sl811.h b/drivers/usb/host/sl811.h index 7690d98e42a7..b6b8c1f233dd 100644 --- a/drivers/usb/host/sl811.h +++ b/drivers/usb/host/sl811.h @@ -261,6 +261,6 @@ sl811_read_buf(struct sl811 *sl811, int addr, void *buf, size_t count) #endif #define ERR(stuff...) printk(KERN_ERR "sl811: " stuff) -#define WARN(stuff...) printk(KERN_WARNING "sl811: " stuff) +#define WARNING(stuff...) printk(KERN_WARNING "sl811: " stuff) #define INFO(stuff...) printk(KERN_INFO "sl811: " stuff) diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c index 5da63f535005..516848dd9b48 100644 --- a/drivers/usb/host/sl811_cs.c +++ b/drivers/usb/host/sl811_cs.c @@ -112,7 +112,8 @@ static struct platform_device platform_dev = { .num_resources = ARRAY_SIZE(resources), }; -static int sl811_hc_init(struct device *parent, ioaddr_t base_addr, int irq) +static int sl811_hc_init(struct device *parent, resource_size_t base_addr, + int irq) { if (platform_dev.dev.parent) return -EBUSY; @@ -155,97 +156,72 @@ 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) +{ + 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 */ + if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + + /* IO window settings */ + p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; + if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { + cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; + + p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; + p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; + p_dev->io.BasePort1 = io->win[0].base; + p_dev->io.NumPorts1 = io->win[0].len; + + return pcmcia_request_io(p_dev, &p_dev->io); + } + pcmcia_disable_device(p_dev); + return -ENODEV; +} + + static int sl811_cs_config(struct pcmcia_device *link) { struct device *parent = &handle_to_dev(link); local_info_t *dev = link->priv; - tuple_t tuple; - cisparse_t parse; int last_fn, last_ret; - u_char buf[64]; - config_info_t conf; - cistpl_cftable_entry_t dflt = { 0 }; DBG(0, "sl811_cs_config(0x%p)\n", link); - /* Look up the current Vcc */ - CS_CHECK(GetConfigurationInfo, - pcmcia_get_configuration_info(link, &conf)); - - tuple.Attributes = 0; - tuple.TupleData = buf; - tuple.TupleDataMax = sizeof(buf); - tuple.TupleOffset = 0; - tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; - CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple)); - while (1) { - cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); - - if (pcmcia_get_tuple_data(link, &tuple) != 0 - || pcmcia_parse_tuple(link, &tuple, &parse) - != 0) - goto next_entry; - - if (cfg->flags & CISTPL_CFTABLE_DEFAULT) { - dflt = *cfg; - } - - if (cfg->index == 0) - goto next_entry; - - link->conf.ConfigIndex = cfg->index; - - /* 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 - != conf.Vcc) - goto next_entry; - } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) { - if (dflt.vcc.param[CISTPL_POWER_VNOM]/10000 - != conf.Vcc) - goto next_entry; - } - - if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM)) - link->conf.Vpp = - cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; - else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM)) - link->conf.Vpp = - dflt.vpp1.param[CISTPL_POWER_VNOM]/10000; - - /* we need an interrupt */ - if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) - link->conf.Attributes |= CONF_ENABLE_IRQ; - - /* IO window settings */ - link->io.NumPorts1 = link->io.NumPorts2 = 0; - if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { - cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; - - link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; - link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; - link->io.BasePort1 = io->win[0].base; - link->io.NumPorts1 = io->win[0].len; - - if (pcmcia_request_io(link, &link->io) != 0) - goto next_entry; - } - break; - -next_entry: - pcmcia_disable_device(link); - last_ret = pcmcia_get_next_tuple(link, &tuple); - } + if (pcmcia_loop_config(link, sl811_cs_config_check, NULL)) + goto failed; /* require an IRQ and two registers */ if (!link->io.NumPorts1 || link->io.NumPorts1 < 2) - goto cs_failed; + goto failed; if (link->conf.Attributes & CONF_ENABLE_IRQ) CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); else - goto cs_failed; + goto failed; CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); @@ -266,8 +242,9 @@ next_entry: if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ) < 0) { cs_failed: - printk("sl811_cs_config failed\n"); cs_error(link, last_fn, last_ret); +failed: + printk(KERN_WARNING "sl811_cs_config failed\n"); sl811_cs_release(link); return -ENODEV; } diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 9b6323f768b2..228f2b070f2b 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -2934,16 +2934,6 @@ static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) return 0; } -static void u132_hub_irq_enable(struct usb_hcd *hcd) -{ - struct u132 *u132 = hcd_to_u132(hcd); - if (u132->going > 1) { - dev_err(&u132->platform_dev->dev, "device has been removed %d\n" - , u132->going); - } else if (u132->going > 0) - dev_err(&u132->platform_dev->dev, "device is being removed\n"); -} - #ifdef CONFIG_PM static int u132_bus_suspend(struct usb_hcd *hcd) @@ -2995,7 +2985,6 @@ static struct hc_driver u132_hc_driver = { .bus_suspend = u132_bus_suspend, .bus_resume = u132_bus_resume, .start_port_reset = u132_start_port_reset, - .hub_irq_enable = u132_hub_irq_enable, }; /* @@ -3124,7 +3113,7 @@ static int __devinit u132_probe(struct platform_device *pdev) if (pdev->dev.dma_mask) return -EINVAL; - hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { printk(KERN_ERR "failed to create the usb hcd struct for U132\n" ); diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 3a7bfe7a8874..cf5e4cf7ea42 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -53,7 +53,6 @@ /* * Version Information */ -#define DRIVER_VERSION "v3.0" #define DRIVER_AUTHOR "Linus 'Frodo Rabbit' Torvalds, Johannes Erdfelt, \ Randy Dunlap, Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber, \ Alan Stern" @@ -951,12 +950,13 @@ static int __init uhci_hcd_init(void) { int retval = -ENOMEM; - printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION "%s\n", - ignore_oc ? ", overcurrent ignored" : ""); - if (usb_disabled()) return -ENODEV; + printk(KERN_INFO "uhci_hcd: " DRIVER_DESC "%s\n", + ignore_oc ? ", overcurrent ignored" : ""); + set_bit(USB_UHCI_LOADED, &usb_hcds_loaded); + if (DEBUG_CONFIGURED) { errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL); if (!errbuf) @@ -988,6 +988,7 @@ debug_failed: errbuf_failed: + clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded); return retval; } @@ -997,6 +998,7 @@ static void __exit uhci_hcd_cleanup(void) kmem_cache_destroy(uhci_up_cachep); debugfs_remove(uhci_debugfs_root); kfree(errbuf); + clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded); } module_init(uhci_hcd_init); diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c index 8e4427aebb14..885b585360b9 100644 --- a/drivers/usb/host/uhci-hub.c +++ b/drivers/usb/host/uhci-hub.c @@ -12,7 +12,7 @@ * (C) Copyright 2004 Alan Stern, stern@rowland.harvard.edu */ -static __u8 root_hub_hub_des[] = +static const __u8 root_hub_hub_des[] = { 0x09, /* __u8 bLength; */ 0x29, /* __u8 bDescriptorType; Hub-descriptor */ diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index db645936eedd..5631d89c8730 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -123,14 +123,10 @@ static struct uhci_td *uhci_alloc_td(struct uhci_hcd *uhci) static void uhci_free_td(struct uhci_hcd *uhci, struct uhci_td *td) { - if (!list_empty(&td->list)) { - dev_warn(uhci_dev(uhci), "td %p still in list!\n", td); - WARN_ON(1); - } - if (!list_empty(&td->fl_list)) { - dev_warn(uhci_dev(uhci), "td %p still in fl_list!\n", td); - WARN_ON(1); - } + if (!list_empty(&td->list)) + dev_WARN(uhci_dev(uhci), "td %p still in list!\n", td); + if (!list_empty(&td->fl_list)) + dev_WARN(uhci_dev(uhci), "td %p still in fl_list!\n", td); dma_pool_free(uhci->td_pool, td, td->dma_handle); } @@ -295,10 +291,8 @@ static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci, static void uhci_free_qh(struct uhci_hcd *uhci, struct uhci_qh *qh) { WARN_ON(qh->state != QH_STATE_IDLE && qh->udev); - if (!list_empty(&qh->queue)) { - dev_warn(uhci_dev(uhci), "qh %p list not empty!\n", qh); - WARN_ON(1); - } + if (!list_empty(&qh->queue)) + dev_WARN(uhci_dev(uhci), "qh %p list not empty!\n", qh); list_del(&qh->node); if (qh->udev) { @@ -746,11 +740,9 @@ static void uhci_free_urb_priv(struct uhci_hcd *uhci, { struct uhci_td *td, *tmp; - if (!list_empty(&urbp->node)) { - dev_warn(uhci_dev(uhci), "urb %p still on QH's list!\n", + if (!list_empty(&urbp->node)) + dev_WARN(uhci_dev(uhci), "urb %p still on QH's list!\n", urbp->urb); - WARN_ON(1); - } list_for_each_entry_safe(td, tmp, &urbp->td_list, list) { uhci_remove_td_from_urbp(td); @@ -1073,13 +1065,18 @@ static int uhci_submit_interrupt(struct uhci_hcd *uhci, struct urb *urb, } if (exponent < 0) return -EINVAL; - qh->period = 1 << exponent; - qh->skel = SKEL_INDEX(exponent); - /* For now, interrupt phase is fixed by the layout - * of the QH lists. */ - qh->phase = (qh->period / 2) & (MAX_PHASE - 1); - ret = uhci_check_bandwidth(uhci, qh); + /* If the slot is full, try a lower period */ + do { + qh->period = 1 << exponent; + qh->skel = SKEL_INDEX(exponent); + + /* For now, interrupt phase is fixed by the layout + * of the QH lists. + */ + qh->phase = (qh->period / 2) & (MAX_PHASE - 1); + ret = uhci_check_bandwidth(uhci, qh); + } while (ret != 0 && --exponent >= 0); if (ret) return ret; } else if (qh->period > urb->interval) diff --git a/drivers/usb/host/whci/Kbuild b/drivers/usb/host/whci/Kbuild new file mode 100644 index 000000000000..26a3871ea0f9 --- /dev/null +++ b/drivers/usb/host/whci/Kbuild @@ -0,0 +1,11 @@ +obj-$(CONFIG_USB_WHCI_HCD) += whci-hcd.o + +whci-hcd-y := \ + asl.o \ + hcd.o \ + hw.o \ + init.o \ + int.o \ + pzl.o \ + qset.o \ + wusb.o diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c new file mode 100644 index 000000000000..4d7078e50572 --- /dev/null +++ b/drivers/usb/host/whci/asl.c @@ -0,0 +1,367 @@ +/* + * Wireless Host Controller (WHC) asynchronous schedule management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 4 +static void dump_asl(struct whc *whc, const char *tag) +{ + struct device *dev = &whc->umc->dev; + struct whc_qset *qset; + + d_printf(4, dev, "ASL %s\n", tag); + + list_for_each_entry(qset, &whc->async_list, list_node) { + dump_qset(qset, dev); + } +} +#else +static inline void dump_asl(struct whc *whc, const char *tag) +{ +} +#endif + + +static void qset_get_next_prev(struct whc *whc, struct whc_qset *qset, + struct whc_qset **next, struct whc_qset **prev) +{ + struct list_head *n, *p; + + BUG_ON(list_empty(&whc->async_list)); + + n = qset->list_node.next; + if (n == &whc->async_list) + n = n->next; + p = qset->list_node.prev; + if (p == &whc->async_list) + p = p->prev; + + *next = container_of(n, struct whc_qset, list_node); + *prev = container_of(p, struct whc_qset, list_node); + +} + +static void asl_qset_insert_begin(struct whc *whc, struct whc_qset *qset) +{ + list_move(&qset->list_node, &whc->async_list); + qset->in_sw_list = true; +} + +static void asl_qset_insert(struct whc *whc, struct whc_qset *qset) +{ + struct whc_qset *next, *prev; + + qset_clear(whc, qset); + + /* Link into ASL. */ + qset_get_next_prev(whc, qset, &next, &prev); + whc_qset_set_link_ptr(&qset->qh.link, next->qset_dma); + whc_qset_set_link_ptr(&prev->qh.link, qset->qset_dma); + qset->in_hw_list = true; +} + +static void asl_qset_remove(struct whc *whc, struct whc_qset *qset) +{ + struct whc_qset *prev, *next; + + qset_get_next_prev(whc, qset, &next, &prev); + + list_move(&qset->list_node, &whc->async_removed_list); + qset->in_sw_list = false; + + /* + * No more qsets in the ASL? The caller must stop the ASL as + * it's no longer valid. + */ + if (list_empty(&whc->async_list)) + return; + + /* Remove from ASL. */ + whc_qset_set_link_ptr(&prev->qh.link, next->qset_dma); + qset->in_hw_list = false; +} + +/** + * process_qset - process any recently inactivated or halted qTDs in a + * qset. + * + * After inactive qTDs are removed, new qTDs can be added if the + * urb queue still contains URBs. + * + * Returns any additional WUSBCMD bits for the ASL sync command (i.e., + * WUSBCMD_ASYNC_QSET_RM if a halted qset was removed). + */ +static uint32_t process_qset(struct whc *whc, struct whc_qset *qset) +{ + enum whc_update update = 0; + uint32_t status = 0; + + while (qset->ntds) { + struct whc_qtd *td; + int t; + + t = qset->td_start; + td = &qset->qtd[qset->td_start]; + status = le32_to_cpu(td->status); + + /* + * Nothing to do with a still active qTD. + */ + if (status & QTD_STS_ACTIVE) + break; + + if (status & QTD_STS_HALTED) { + /* Ug, an error. */ + process_halted_qtd(whc, qset, td); + goto done; + } + + /* Mmm, a completed qTD. */ + process_inactive_qtd(whc, qset, td); + } + + update |= qset_add_qtds(whc, qset); + +done: + /* + * Remove this qset from the ASL if requested, but only if has + * no qTDs. + */ + if (qset->remove && qset->ntds == 0) { + asl_qset_remove(whc, qset); + update |= WHC_UPDATE_REMOVED; + } + return update; +} + +void asl_start(struct whc *whc) +{ + struct whc_qset *qset; + + qset = list_first_entry(&whc->async_list, struct whc_qset, list_node); + + le_writeq(qset->qset_dma | QH_LINK_NTDS(8), whc->base + WUSBASYNCLISTADDR); + + whc_write_wusbcmd(whc, WUSBCMD_ASYNC_EN, WUSBCMD_ASYNC_EN); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_ASYNC_SCHED, WUSBSTS_ASYNC_SCHED, + 1000, "start ASL"); +} + +void asl_stop(struct whc *whc) +{ + whc_write_wusbcmd(whc, WUSBCMD_ASYNC_EN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_ASYNC_SCHED, 0, + 1000, "stop ASL"); +} + +void asl_update(struct whc *whc, uint32_t wusbcmd) +{ + whc_write_wusbcmd(whc, wusbcmd, wusbcmd); + wait_event(whc->async_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_ASYNC_UPDATED) == 0); +} + +/** + * scan_async_work - scan the ASL for qsets to process. + * + * Process each qset in the ASL in turn and then signal the WHC that + * the ASL has been updated. + * + * Then start, stop or update the asynchronous schedule as required. + */ +void scan_async_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, async_work); + struct whc_qset *qset, *t; + enum whc_update update = 0; + + spin_lock_irq(&whc->lock); + + dump_asl(whc, "before processing"); + + /* + * Transerve the software list backwards so new qsets can be + * safely inserted into the ASL without making it non-circular. + */ + list_for_each_entry_safe_reverse(qset, t, &whc->async_list, list_node) { + if (!qset->in_hw_list) { + asl_qset_insert(whc, qset); + update |= WHC_UPDATE_ADDED; + } + + update |= process_qset(whc, qset); + } + + dump_asl(whc, "after processing"); + + spin_unlock_irq(&whc->lock); + + if (update) { + uint32_t wusbcmd = WUSBCMD_ASYNC_UPDATED | WUSBCMD_ASYNC_SYNCED_DB; + if (update & WHC_UPDATE_REMOVED) + wusbcmd |= WUSBCMD_ASYNC_QSET_RM; + asl_update(whc, wusbcmd); + } + + /* + * Now that the ASL is updated, complete the removal of any + * removed qsets. + */ + spin_lock(&whc->lock); + + list_for_each_entry_safe(qset, t, &whc->async_removed_list, list_node) { + qset_remove_complete(whc, qset); + } + + spin_unlock(&whc->lock); +} + +/** + * asl_urb_enqueue - queue an URB onto the asynchronous list (ASL). + * @whc: the WHCI host controller + * @urb: the URB to enqueue + * @mem_flags: flags for any memory allocations + * + * The qset for the endpoint is obtained and the urb queued on to it. + * + * Work is scheduled to update the hardware's view of the ASL. + */ +int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) +{ + struct whc_qset *qset; + int err; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + qset = get_qset(whc, urb, GFP_ATOMIC); + if (qset == NULL) + err = -ENOMEM; + else + err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); + if (!err) { + usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb); + if (!qset->in_sw_list) + asl_qset_insert_begin(whc, qset); + } + + spin_unlock_irqrestore(&whc->lock, flags); + + if (!err) + queue_work(whc->workqueue, &whc->async_work); + + return 0; +} + +/** + * asl_urb_dequeue - remove an URB (qset) from the async list. + * @whc: the WHCI host controller + * @urb: the URB to dequeue + * @status: the current status of the URB + * + * URBs that do yet have qTDs can simply be removed from the software + * queue, otherwise the qset must be removed from the ASL so the qTDs + * can be removed. + */ +int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status) +{ + struct whc_urb *wurb = urb->hcpriv; + struct whc_qset *qset = wurb->qset; + struct whc_std *std, *t; + int ret; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + ret = usb_hcd_check_unlink_urb(&whc->wusbhc.usb_hcd, urb, status); + if (ret < 0) + goto out; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(whc, std); + else + std->qtd = NULL; /* so this std is re-added when the qset is */ + } + + asl_qset_remove(whc, qset); + wurb->status = status; + wurb->is_async = true; + queue_work(whc->workqueue, &wurb->dequeue_work); + +out: + spin_unlock_irqrestore(&whc->lock, flags); + + return ret; +} + +/** + * asl_qset_delete - delete a qset from the ASL + */ +void asl_qset_delete(struct whc *whc, struct whc_qset *qset) +{ + qset->remove = 1; + queue_work(whc->workqueue, &whc->async_work); + qset_delete(whc, qset); +} + +/** + * asl_init - initialize the asynchronous schedule list + * + * A dummy qset with no qTDs is added to the ASL to simplify removing + * qsets (no need to stop the ASL when the last qset is removed). + */ +int asl_init(struct whc *whc) +{ + struct whc_qset *qset; + + qset = qset_alloc(whc, GFP_KERNEL); + if (qset == NULL) + return -ENOMEM; + + asl_qset_insert_begin(whc, qset); + asl_qset_insert(whc, qset); + + return 0; +} + +/** + * asl_clean_up - free ASL resources + * + * The ASL is stopped and empty except for the dummy qset. + */ +void asl_clean_up(struct whc *whc) +{ + struct whc_qset *qset; + + if (!list_empty(&whc->async_list)) { + qset = list_first_entry(&whc->async_list, struct whc_qset, list_node); + list_del(&qset->list_node); + qset_free(whc, qset); + } +} diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c new file mode 100644 index 000000000000..ef3ad4dca945 --- /dev/null +++ b/drivers/usb/host/whci/hcd.c @@ -0,0 +1,339 @@ +/* + * Wireless Host Controller (WHC) driver. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +/* + * One time initialization. + * + * Nothing to do here. + */ +static int whc_reset(struct usb_hcd *usb_hcd) +{ + return 0; +} + +/* + * Start the wireless host controller. + * + * Start device notification. + * + * Put hc into run state, set DNTS parameters. + */ +static int whc_start(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + u8 bcid; + int ret; + + mutex_lock(&wusbhc->mutex); + + le_writel(WUSBINTR_GEN_CMD_DONE + | WUSBINTR_HOST_ERR + | WUSBINTR_ASYNC_SCHED_SYNCED + | WUSBINTR_DNTS_INT + | WUSBINTR_ERR_INT + | WUSBINTR_INT, + whc->base + WUSBINTR); + + /* set cluster ID */ + bcid = wusb_cluster_id_get(); + ret = whc_set_cluster_id(whc, bcid); + if (ret < 0) + goto out; + wusbhc->cluster_id = bcid; + + /* start HC */ + whc_write_wusbcmd(whc, WUSBCMD_RUN, WUSBCMD_RUN); + + usb_hcd->uses_new_polling = 1; + usb_hcd->poll_rh = 1; + usb_hcd->state = HC_STATE_RUNNING; + +out: + mutex_unlock(&wusbhc->mutex); + return ret; +} + + +/* + * Stop the wireless host controller. + * + * Stop device notification. + * + * Wait for pending transfer to stop? Put hc into stop state? + */ +static void whc_stop(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + + mutex_lock(&wusbhc->mutex); + + wusbhc_stop(wusbhc); + + /* stop HC */ + le_writel(0, whc->base + WUSBINTR); + whc_write_wusbcmd(whc, WUSBCMD_RUN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_HCHALTED, WUSBSTS_HCHALTED, + 100, "HC to halt"); + + wusb_cluster_id_put(wusbhc->cluster_id); + + mutex_unlock(&wusbhc->mutex); +} + +static int whc_get_frame_number(struct usb_hcd *usb_hcd) +{ + /* Frame numbers are not applicable to WUSB. */ + return -ENOSYS; +} + + +/* + * Queue an URB to the ASL or PZL + */ +static int whc_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, + gfp_t mem_flags) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + switch (usb_pipetype(urb->pipe)) { + case PIPE_INTERRUPT: + ret = pzl_urb_enqueue(whc, urb, mem_flags); + break; + case PIPE_ISOCHRONOUS: + dev_err(&whc->umc->dev, "isochronous transfers unsupported\n"); + ret = -ENOTSUPP; + break; + case PIPE_CONTROL: + case PIPE_BULK: + default: + ret = asl_urb_enqueue(whc, urb, mem_flags); + break; + }; + + return ret; +} + +/* + * Remove a queued URB from the ASL or PZL. + */ +static int whc_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, int status) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + switch (usb_pipetype(urb->pipe)) { + case PIPE_INTERRUPT: + ret = pzl_urb_dequeue(whc, urb, status); + break; + case PIPE_ISOCHRONOUS: + ret = -ENOTSUPP; + break; + case PIPE_CONTROL: + case PIPE_BULK: + default: + ret = asl_urb_dequeue(whc, urb, status); + break; + }; + + return ret; +} + +/* + * Wait for all URBs to the endpoint to be completed, then delete the + * qset. + */ +static void whc_endpoint_disable(struct usb_hcd *usb_hcd, + struct usb_host_endpoint *ep) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + struct whc_qset *qset; + + qset = ep->hcpriv; + if (qset) { + ep->hcpriv = NULL; + if (usb_endpoint_xfer_bulk(&ep->desc) + || usb_endpoint_xfer_control(&ep->desc)) + asl_qset_delete(whc, qset); + else + pzl_qset_delete(whc, qset); + } +} + +static struct hc_driver whc_hc_driver = { + .description = "whci-hcd", + .product_desc = "Wireless host controller", + .hcd_priv_size = sizeof(struct whc) - sizeof(struct usb_hcd), + .irq = whc_int_handler, + .flags = HCD_USB2, + + .reset = whc_reset, + .start = whc_start, + .stop = whc_stop, + .get_frame_number = whc_get_frame_number, + .urb_enqueue = whc_urb_enqueue, + .urb_dequeue = whc_urb_dequeue, + .endpoint_disable = whc_endpoint_disable, + + .hub_status_data = wusbhc_rh_status_data, + .hub_control = wusbhc_rh_control, + .bus_suspend = wusbhc_rh_suspend, + .bus_resume = wusbhc_rh_resume, + .start_port_reset = wusbhc_rh_start_port_reset, +}; + +static int whc_probe(struct umc_dev *umc) +{ + int ret = -ENOMEM; + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc = NULL; + struct whc *whc = NULL; + struct device *dev = &umc->dev; + + usb_hcd = usb_create_hcd(&whc_hc_driver, dev, "whci"); + if (usb_hcd == NULL) { + dev_err(dev, "unable to create hcd\n"); + goto error; + } + + usb_hcd->wireless = 1; + + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + whc = wusbhc_to_whc(wusbhc); + whc->umc = umc; + + ret = whc_init(whc); + if (ret) + goto error; + + wusbhc->dev = dev; + wusbhc->uwb_rc = uwb_rc_get_by_grandpa(umc->dev.parent); + if (!wusbhc->uwb_rc) { + ret = -ENODEV; + dev_err(dev, "cannot get radio controller\n"); + goto error; + } + + if (whc->n_devices > USB_MAXCHILDREN) { + dev_warn(dev, "USB_MAXCHILDREN too low for WUSB adapter (%u ports)\n", + whc->n_devices); + wusbhc->ports_max = USB_MAXCHILDREN; + } else + wusbhc->ports_max = whc->n_devices; + wusbhc->mmcies_max = whc->n_mmc_ies; + wusbhc->start = whc_wusbhc_start; + wusbhc->stop = whc_wusbhc_stop; + wusbhc->mmcie_add = whc_mmcie_add; + wusbhc->mmcie_rm = whc_mmcie_rm; + wusbhc->dev_info_set = whc_dev_info_set; + wusbhc->bwa_set = whc_bwa_set; + wusbhc->set_num_dnts = whc_set_num_dnts; + wusbhc->set_ptk = whc_set_ptk; + wusbhc->set_gtk = whc_set_gtk; + + ret = wusbhc_create(wusbhc); + if (ret) + goto error_wusbhc_create; + + ret = usb_add_hcd(usb_hcd, whc->umc->irq, IRQF_SHARED); + if (ret) { + dev_err(dev, "cannot add HCD: %d\n", ret); + goto error_usb_add_hcd; + } + + ret = wusbhc_b_create(wusbhc); + if (ret) { + dev_err(dev, "WUSBHC phase B setup failed: %d\n", ret); + goto error_wusbhc_b_create; + } + + return 0; + +error_wusbhc_b_create: + usb_remove_hcd(usb_hcd); +error_usb_add_hcd: + wusbhc_destroy(wusbhc); +error_wusbhc_create: + uwb_rc_put(wusbhc->uwb_rc); +error: + whc_clean_up(whc); + if (usb_hcd) + usb_put_hcd(usb_hcd); + return ret; +} + + +static void whc_remove(struct umc_dev *umc) +{ + struct usb_hcd *usb_hcd = dev_get_drvdata(&umc->dev); + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + + if (usb_hcd) { + wusbhc_b_destroy(wusbhc); + usb_remove_hcd(usb_hcd); + wusbhc_destroy(wusbhc); + uwb_rc_put(wusbhc->uwb_rc); + whc_clean_up(whc); + usb_put_hcd(usb_hcd); + } +} + +static struct umc_driver whci_hc_driver = { + .name = "whci-hcd", + .cap_id = UMC_CAP_ID_WHCI_WUSB_HC, + .probe = whc_probe, + .remove = whc_remove, +}; + +static int __init whci_hc_driver_init(void) +{ + return umc_driver_register(&whci_hc_driver); +} +module_init(whci_hc_driver_init); + +static void __exit whci_hc_driver_exit(void) +{ + umc_driver_unregister(&whci_hc_driver); +} +module_exit(whci_hc_driver_exit); + +/* PCI device ID's that we handle (so it gets loaded) */ +static struct pci_device_id whci_hcd_id_table[] = { + { PCI_DEVICE_CLASS(PCI_CLASS_WIRELESS_WHCI, ~0) }, + { /* empty last entry */ } +}; +MODULE_DEVICE_TABLE(pci, whci_hcd_id_table); + +MODULE_DESCRIPTION("WHCI Wireless USB host controller driver"); +MODULE_AUTHOR("Cambridge Silicon Radio Ltd."); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/whci/hw.c b/drivers/usb/host/whci/hw.c new file mode 100644 index 000000000000..ac86e59c1225 --- /dev/null +++ b/drivers/usb/host/whci/hw.c @@ -0,0 +1,87 @@ +/* + * Wireless Host Controller (WHC) hardware access helpers. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val) +{ + unsigned long flags; + u32 cmd; + + spin_lock_irqsave(&whc->lock, flags); + + cmd = le_readl(whc->base + WUSBCMD); + cmd = (cmd & ~mask) | val; + le_writel(cmd, whc->base + WUSBCMD); + + spin_unlock_irqrestore(&whc->lock, flags); +} + +/** + * whc_do_gencmd - start a generic command via the WUSBGENCMDSTS register + * @whc: the WHCI HC + * @cmd: command to start. + * @params: parameters for the command (the WUSBGENCMDPARAMS register value). + * @addr: pointer to any data for the command (may be NULL). + * @len: length of the data (if any). + */ +int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len) +{ + unsigned long flags; + dma_addr_t dma_addr; + int t; + + mutex_lock(&whc->mutex); + + /* Wait for previous command to complete. */ + t = wait_event_timeout(whc->cmd_wq, + (le_readl(whc->base + WUSBGENCMDSTS) & WUSBGENCMDSTS_ACTIVE) == 0, + WHC_GENCMD_TIMEOUT_MS); + if (t == 0) { + dev_err(&whc->umc->dev, "generic command timeout (%04x/%04x)\n", + le_readl(whc->base + WUSBGENCMDSTS), + le_readl(whc->base + WUSBGENCMDPARAMS)); + return -ETIMEDOUT; + } + + if (addr) { + memcpy(whc->gen_cmd_buf, addr, len); + dma_addr = whc->gen_cmd_buf_dma; + } else + dma_addr = 0; + + /* Poke registers to start cmd. */ + spin_lock_irqsave(&whc->lock, flags); + + le_writel(params, whc->base + WUSBGENCMDPARAMS); + le_writeq(dma_addr, whc->base + WUSBGENADDR); + + le_writel(WUSBGENCMDSTS_ACTIVE | WUSBGENCMDSTS_IOC | cmd, + whc->base + WUSBGENCMDSTS); + + spin_unlock_irqrestore(&whc->lock, flags); + + mutex_unlock(&whc->mutex); + + return 0; +} diff --git a/drivers/usb/host/whci/init.c b/drivers/usb/host/whci/init.c new file mode 100644 index 000000000000..34a783cb0133 --- /dev/null +++ b/drivers/usb/host/whci/init.c @@ -0,0 +1,188 @@ +/* + * Wireless Host Controller (WHC) initialization. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +/* + * Reset the host controller. + */ +static void whc_hw_reset(struct whc *whc) +{ + le_writel(WUSBCMD_WHCRESET, whc->base + WUSBCMD); + whci_wait_for(&whc->umc->dev, whc->base + WUSBCMD, WUSBCMD_WHCRESET, 0, + 100, "reset"); +} + +static void whc_hw_init_di_buf(struct whc *whc) +{ + int d; + + /* Disable all entries in the Device Information buffer. */ + for (d = 0; d < whc->n_devices; d++) + whc->di_buf[d].addr_sec_info = WHC_DI_DISABLE; + + le_writeq(whc->di_buf_dma, whc->base + WUSBDEVICEINFOADDR); +} + +static void whc_hw_init_dn_buf(struct whc *whc) +{ + /* Clear the Device Notification buffer to ensure the V (valid) + * bits are clear. */ + memset(whc->dn_buf, 0, 4096); + + le_writeq(whc->dn_buf_dma, whc->base + WUSBDNTSBUFADDR); +} + +int whc_init(struct whc *whc) +{ + u32 whcsparams; + int ret, i; + resource_size_t start, len; + + spin_lock_init(&whc->lock); + mutex_init(&whc->mutex); + init_waitqueue_head(&whc->cmd_wq); + init_waitqueue_head(&whc->async_list_wq); + init_waitqueue_head(&whc->periodic_list_wq); + whc->workqueue = create_singlethread_workqueue(dev_name(&whc->umc->dev)); + if (whc->workqueue == NULL) { + ret = -ENOMEM; + goto error; + } + INIT_WORK(&whc->dn_work, whc_dn_work); + + INIT_WORK(&whc->async_work, scan_async_work); + INIT_LIST_HEAD(&whc->async_list); + INIT_LIST_HEAD(&whc->async_removed_list); + + INIT_WORK(&whc->periodic_work, scan_periodic_work); + for (i = 0; i < 5; i++) + INIT_LIST_HEAD(&whc->periodic_list[i]); + INIT_LIST_HEAD(&whc->periodic_removed_list); + + /* Map HC registers. */ + start = whc->umc->resource.start; + len = whc->umc->resource.end - start + 1; + if (!request_mem_region(start, len, "whci-hc")) { + dev_err(&whc->umc->dev, "can't request HC region\n"); + ret = -EBUSY; + goto error; + } + whc->base_phys = start; + whc->base = ioremap(start, len); + if (!whc->base) { + dev_err(&whc->umc->dev, "ioremap\n"); + ret = -ENOMEM; + goto error; + } + + whc_hw_reset(whc); + + /* Read maximum number of devices, keys and MMC IEs. */ + whcsparams = le_readl(whc->base + WHCSPARAMS); + whc->n_devices = WHCSPARAMS_TO_N_DEVICES(whcsparams); + whc->n_keys = WHCSPARAMS_TO_N_KEYS(whcsparams); + whc->n_mmc_ies = WHCSPARAMS_TO_N_MMC_IES(whcsparams); + + dev_dbg(&whc->umc->dev, "N_DEVICES = %d, N_KEYS = %d, N_MMC_IES = %d\n", + whc->n_devices, whc->n_keys, whc->n_mmc_ies); + + whc->qset_pool = dma_pool_create("qset", &whc->umc->dev, + sizeof(struct whc_qset), 64, 0); + if (whc->qset_pool == NULL) { + ret = -ENOMEM; + goto error; + } + + ret = asl_init(whc); + if (ret < 0) + goto error; + ret = pzl_init(whc); + if (ret < 0) + goto error; + + /* Allocate and initialize a buffer for generic commands, the + Device Information buffer, and the Device Notification + buffer. */ + + whc->gen_cmd_buf = dma_alloc_coherent(&whc->umc->dev, WHC_GEN_CMD_DATA_LEN, + &whc->gen_cmd_buf_dma, GFP_KERNEL); + if (whc->gen_cmd_buf == NULL) { + ret = -ENOMEM; + goto error; + } + + whc->dn_buf = dma_alloc_coherent(&whc->umc->dev, + sizeof(struct dn_buf_entry) * WHC_N_DN_ENTRIES, + &whc->dn_buf_dma, GFP_KERNEL); + if (!whc->dn_buf) { + ret = -ENOMEM; + goto error; + } + whc_hw_init_dn_buf(whc); + + whc->di_buf = dma_alloc_coherent(&whc->umc->dev, + sizeof(struct di_buf_entry) * whc->n_devices, + &whc->di_buf_dma, GFP_KERNEL); + if (!whc->di_buf) { + ret = -ENOMEM; + goto error; + } + whc_hw_init_di_buf(whc); + + return 0; + +error: + whc_clean_up(whc); + return ret; +} + +void whc_clean_up(struct whc *whc) +{ + resource_size_t len; + + if (whc->di_buf) + dma_free_coherent(&whc->umc->dev, sizeof(struct di_buf_entry) * whc->n_devices, + whc->di_buf, whc->di_buf_dma); + if (whc->dn_buf) + dma_free_coherent(&whc->umc->dev, sizeof(struct dn_buf_entry) * WHC_N_DN_ENTRIES, + whc->dn_buf, whc->dn_buf_dma); + if (whc->gen_cmd_buf) + dma_free_coherent(&whc->umc->dev, WHC_GEN_CMD_DATA_LEN, + whc->gen_cmd_buf, whc->gen_cmd_buf_dma); + + pzl_clean_up(whc); + asl_clean_up(whc); + + if (whc->qset_pool) + dma_pool_destroy(whc->qset_pool); + + len = whc->umc->resource.end - whc->umc->resource.start + 1; + if (whc->base) + iounmap(whc->base); + if (whc->base_phys) + release_mem_region(whc->base_phys, len); + + if (whc->workqueue) + destroy_workqueue(whc->workqueue); +} diff --git a/drivers/usb/host/whci/int.c b/drivers/usb/host/whci/int.c new file mode 100644 index 000000000000..fce01174aa9b --- /dev/null +++ b/drivers/usb/host/whci/int.c @@ -0,0 +1,95 @@ +/* + * Wireless Host Controller (WHC) interrupt handling. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +static void transfer_done(struct whc *whc) +{ + queue_work(whc->workqueue, &whc->async_work); + queue_work(whc->workqueue, &whc->periodic_work); +} + +irqreturn_t whc_int_handler(struct usb_hcd *hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 sts; + + sts = le_readl(whc->base + WUSBSTS); + if (!(sts & WUSBSTS_INT_MASK)) + return IRQ_NONE; + le_writel(sts & WUSBSTS_INT_MASK, whc->base + WUSBSTS); + + if (sts & WUSBSTS_GEN_CMD_DONE) + wake_up(&whc->cmd_wq); + + if (sts & WUSBSTS_HOST_ERR) + dev_err(&whc->umc->dev, "FIXME: host system error\n"); + + if (sts & WUSBSTS_ASYNC_SCHED_SYNCED) + wake_up(&whc->async_list_wq); + + if (sts & WUSBSTS_PERIODIC_SCHED_SYNCED) + wake_up(&whc->periodic_list_wq); + + if (sts & WUSBSTS_DNTS_INT) + queue_work(whc->workqueue, &whc->dn_work); + + /* + * A transfer completed (see [WHCI] section 4.7.1.2 for when + * this occurs). + */ + if (sts & (WUSBSTS_INT | WUSBSTS_ERR_INT)) + transfer_done(whc); + + return IRQ_HANDLED; +} + +static int process_dn_buf(struct whc *whc) +{ + struct wusbhc *wusbhc = &whc->wusbhc; + struct dn_buf_entry *dn; + int processed = 0; + + for (dn = whc->dn_buf; dn < whc->dn_buf + WHC_N_DN_ENTRIES; dn++) { + if (dn->status & WHC_DN_STATUS_VALID) { + wusbhc_handle_dn(wusbhc, dn->src_addr, + (struct wusb_dn_hdr *)dn->dn_data, + dn->msg_size); + dn->status &= ~WHC_DN_STATUS_VALID; + processed++; + } + } + return processed; +} + +void whc_dn_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, dn_work); + int processed; + + do { + processed = process_dn_buf(whc); + } while (processed); +} diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c new file mode 100644 index 000000000000..8d62df0c330b --- /dev/null +++ b/drivers/usb/host/whci/pzl.c @@ -0,0 +1,398 @@ +/* + * Wireless Host Controller (WHC) periodic schedule management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 4 +static void dump_pzl(struct whc *whc, const char *tag) +{ + struct device *dev = &whc->umc->dev; + struct whc_qset *qset; + int period = 0; + + d_printf(4, dev, "PZL %s\n", tag); + + for (period = 0; period < 5; period++) { + d_printf(4, dev, "Period %d\n", period); + list_for_each_entry(qset, &whc->periodic_list[period], list_node) { + dump_qset(qset, dev); + } + } +} +#else +static inline void dump_pzl(struct whc *whc, const char *tag) +{ +} +#endif + +static void update_pzl_pointers(struct whc *whc, int period, u64 addr) +{ + switch (period) { + case 0: + whc_qset_set_link_ptr(&whc->pz_list[0], addr); + whc_qset_set_link_ptr(&whc->pz_list[2], addr); + whc_qset_set_link_ptr(&whc->pz_list[4], addr); + whc_qset_set_link_ptr(&whc->pz_list[6], addr); + whc_qset_set_link_ptr(&whc->pz_list[8], addr); + whc_qset_set_link_ptr(&whc->pz_list[10], addr); + whc_qset_set_link_ptr(&whc->pz_list[12], addr); + whc_qset_set_link_ptr(&whc->pz_list[14], addr); + break; + case 1: + whc_qset_set_link_ptr(&whc->pz_list[1], addr); + whc_qset_set_link_ptr(&whc->pz_list[5], addr); + whc_qset_set_link_ptr(&whc->pz_list[9], addr); + whc_qset_set_link_ptr(&whc->pz_list[13], addr); + break; + case 2: + whc_qset_set_link_ptr(&whc->pz_list[3], addr); + whc_qset_set_link_ptr(&whc->pz_list[11], addr); + break; + case 3: + whc_qset_set_link_ptr(&whc->pz_list[7], addr); + break; + case 4: + whc_qset_set_link_ptr(&whc->pz_list[15], addr); + break; + } +} + +/* + * Return the 'period' to use for this qset. The minimum interval for + * the endpoint is used so whatever urbs are submitted the device is + * polled often enough. + */ +static int qset_get_period(struct whc *whc, struct whc_qset *qset) +{ + uint8_t bInterval = qset->ep->desc.bInterval; + + if (bInterval < 6) + bInterval = 6; + if (bInterval > 10) + bInterval = 10; + return bInterval - 6; +} + +static void qset_insert_in_sw_list(struct whc *whc, struct whc_qset *qset) +{ + int period; + + period = qset_get_period(whc, qset); + + qset_clear(whc, qset); + list_move(&qset->list_node, &whc->periodic_list[period]); + qset->in_sw_list = true; +} + +static void pzl_qset_remove(struct whc *whc, struct whc_qset *qset) +{ + list_move(&qset->list_node, &whc->periodic_removed_list); + qset->in_hw_list = false; + qset->in_sw_list = false; +} + +/** + * pzl_process_qset - process any recently inactivated or halted qTDs + * in a qset. + * + * After inactive qTDs are removed, new qTDs can be added if the + * urb queue still contains URBs. + * + * Returns the schedule updates required. + */ +static enum whc_update pzl_process_qset(struct whc *whc, struct whc_qset *qset) +{ + enum whc_update update = 0; + uint32_t status = 0; + + while (qset->ntds) { + struct whc_qtd *td; + int t; + + t = qset->td_start; + td = &qset->qtd[qset->td_start]; + status = le32_to_cpu(td->status); + + /* + * Nothing to do with a still active qTD. + */ + if (status & QTD_STS_ACTIVE) + break; + + if (status & QTD_STS_HALTED) { + /* Ug, an error. */ + process_halted_qtd(whc, qset, td); + goto done; + } + + /* Mmm, a completed qTD. */ + process_inactive_qtd(whc, qset, td); + } + + update |= qset_add_qtds(whc, qset); + +done: + /* + * If there are no qTDs in this qset, remove it from the PZL. + */ + if (qset->remove && qset->ntds == 0) { + pzl_qset_remove(whc, qset); + update |= WHC_UPDATE_REMOVED; + } + + return update; +} + +/** + * pzl_start - start the periodic schedule + * @whc: the WHCI host controller + * + * The PZL must be valid (e.g., all entries in the list should have + * the T bit set). + */ +void pzl_start(struct whc *whc) +{ + le_writeq(whc->pz_list_dma, whc->base + WUSBPERIODICLISTBASE); + + whc_write_wusbcmd(whc, WUSBCMD_PERIODIC_EN, WUSBCMD_PERIODIC_EN); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_PERIODIC_SCHED, WUSBSTS_PERIODIC_SCHED, + 1000, "start PZL"); +} + +/** + * pzl_stop - stop the periodic schedule + * @whc: the WHCI host controller + */ +void pzl_stop(struct whc *whc) +{ + whc_write_wusbcmd(whc, WUSBCMD_PERIODIC_EN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_PERIODIC_SCHED, 0, + 1000, "stop PZL"); +} + +void pzl_update(struct whc *whc, uint32_t wusbcmd) +{ + whc_write_wusbcmd(whc, wusbcmd, wusbcmd); + wait_event(whc->periodic_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0); +} + +static void update_pzl_hw_view(struct whc *whc) +{ + struct whc_qset *qset, *t; + int period; + u64 tmp_qh = 0; + + for (period = 0; period < 5; period++) { + list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) { + whc_qset_set_link_ptr(&qset->qh.link, tmp_qh); + tmp_qh = qset->qset_dma; + qset->in_hw_list = true; + } + update_pzl_pointers(whc, period, tmp_qh); + } +} + +/** + * scan_periodic_work - scan the PZL for qsets to process. + * + * Process each qset in the PZL in turn and then signal the WHC that + * the PZL has been updated. + * + * Then start, stop or update the periodic schedule as required. + */ +void scan_periodic_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, periodic_work); + struct whc_qset *qset, *t; + enum whc_update update = 0; + int period; + + spin_lock_irq(&whc->lock); + + dump_pzl(whc, "before processing"); + + for (period = 4; period >= 0; period--) { + list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) { + if (!qset->in_hw_list) + update |= WHC_UPDATE_ADDED; + update |= pzl_process_qset(whc, qset); + } + } + + if (update & (WHC_UPDATE_ADDED | WHC_UPDATE_REMOVED)) + update_pzl_hw_view(whc); + + dump_pzl(whc, "after processing"); + + spin_unlock_irq(&whc->lock); + + if (update) { + uint32_t wusbcmd = WUSBCMD_PERIODIC_UPDATED | WUSBCMD_PERIODIC_SYNCED_DB; + if (update & WHC_UPDATE_REMOVED) + wusbcmd |= WUSBCMD_PERIODIC_QSET_RM; + pzl_update(whc, wusbcmd); + } + + /* + * Now that the PZL is updated, complete the removal of any + * removed qsets. + */ + spin_lock(&whc->lock); + + list_for_each_entry_safe(qset, t, &whc->periodic_removed_list, list_node) { + qset_remove_complete(whc, qset); + } + + spin_unlock(&whc->lock); +} + +/** + * pzl_urb_enqueue - queue an URB onto the periodic list (PZL) + * @whc: the WHCI host controller + * @urb: the URB to enqueue + * @mem_flags: flags for any memory allocations + * + * The qset for the endpoint is obtained and the urb queued on to it. + * + * Work is scheduled to update the hardware's view of the PZL. + */ +int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) +{ + struct whc_qset *qset; + int err; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + qset = get_qset(whc, urb, GFP_ATOMIC); + if (qset == NULL) + err = -ENOMEM; + else + err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); + if (!err) { + usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb); + if (!qset->in_sw_list) + qset_insert_in_sw_list(whc, qset); + } + + spin_unlock_irqrestore(&whc->lock, flags); + + if (!err) + queue_work(whc->workqueue, &whc->periodic_work); + + return 0; +} + +/** + * pzl_urb_dequeue - remove an URB (qset) from the periodic list + * @whc: the WHCI host controller + * @urb: the URB to dequeue + * @status: the current status of the URB + * + * URBs that do yet have qTDs can simply be removed from the software + * queue, otherwise the qset must be removed so the qTDs can be safely + * removed. + */ +int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status) +{ + struct whc_urb *wurb = urb->hcpriv; + struct whc_qset *qset = wurb->qset; + struct whc_std *std, *t; + int ret; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + ret = usb_hcd_check_unlink_urb(&whc->wusbhc.usb_hcd, urb, status); + if (ret < 0) + goto out; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(whc, std); + else + std->qtd = NULL; /* so this std is re-added when the qset is */ + } + + pzl_qset_remove(whc, qset); + wurb->status = status; + wurb->is_async = false; + queue_work(whc->workqueue, &wurb->dequeue_work); + +out: + spin_unlock_irqrestore(&whc->lock, flags); + + return ret; +} + +/** + * pzl_qset_delete - delete a qset from the PZL + */ +void pzl_qset_delete(struct whc *whc, struct whc_qset *qset) +{ + qset->remove = 1; + queue_work(whc->workqueue, &whc->periodic_work); + qset_delete(whc, qset); +} + + +/** + * pzl_init - initialize the periodic zone list + * @whc: the WHCI host controller + */ +int pzl_init(struct whc *whc) +{ + int i; + + whc->pz_list = dma_alloc_coherent(&whc->umc->dev, sizeof(u64) * 16, + &whc->pz_list_dma, GFP_KERNEL); + if (whc->pz_list == NULL) + return -ENOMEM; + + /* Set T bit on all elements in PZL. */ + for (i = 0; i < 16; i++) + whc->pz_list[i] = cpu_to_le64(QH_LINK_NTDS(8) | QH_LINK_T); + + le_writeq(whc->pz_list_dma, whc->base + WUSBPERIODICLISTBASE); + + return 0; +} + +/** + * pzl_clean_up - free PZL resources + * @whc: the WHCI host controller + * + * The PZL is stopped and empty. + */ +void pzl_clean_up(struct whc *whc) +{ + if (whc->pz_list) + dma_free_coherent(&whc->umc->dev, sizeof(u64) * 16, whc->pz_list, + whc->pz_list_dma); +} diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c new file mode 100644 index 000000000000..0420037d2e18 --- /dev/null +++ b/drivers/usb/host/whci/qset.c @@ -0,0 +1,567 @@ +/* + * Wireless Host Controller (WHC) qset management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +void dump_qset(struct whc_qset *qset, struct device *dev) +{ + struct whc_std *std; + struct urb *urb = NULL; + int i; + + dev_dbg(dev, "qset %08x\n", (u32)qset->qset_dma); + dev_dbg(dev, " -> %08x\n", (u32)qset->qh.link); + dev_dbg(dev, " info: %08x %08x %08x\n", + qset->qh.info1, qset->qh.info2, qset->qh.info3); + dev_dbg(dev, " sts: %04x errs: %d\n", qset->qh.status, qset->qh.err_count); + dev_dbg(dev, " TD: sts: %08x opts: %08x\n", + qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options); + + for (i = 0; i < WHCI_QSET_TD_MAX; i++) { + dev_dbg(dev, " %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n", + i == qset->td_start ? 'S' : ' ', + i == qset->td_end ? 'E' : ' ', + i, qset->qtd[i].status, qset->qtd[i].options, + (u32)qset->qtd[i].page_list_ptr); + } + dev_dbg(dev, " ntds: %d\n", qset->ntds); + list_for_each_entry(std, &qset->stds, list_node) { + if (urb != std->urb) { + urb = std->urb; + dev_dbg(dev, " urb %p transferred: %d bytes\n", urb, + urb->actual_length); + } + if (std->qtd) + dev_dbg(dev, " sTD[%td]: %zu bytes @ %08x\n", + std->qtd - &qset->qtd[0], + std->len, std->num_pointers ? + (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); + else + dev_dbg(dev, " sTD[-]: %zd bytes @ %08x\n", + std->len, std->num_pointers ? + (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); + } +} + +struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags) +{ + struct whc_qset *qset; + dma_addr_t dma; + + qset = dma_pool_alloc(whc->qset_pool, mem_flags, &dma); + if (qset == NULL) + return NULL; + memset(qset, 0, sizeof(struct whc_qset)); + + qset->qset_dma = dma; + qset->whc = whc; + + INIT_LIST_HEAD(&qset->list_node); + INIT_LIST_HEAD(&qset->stds); + + return qset; +} + +/** + * qset_fill_qh - fill the static endpoint state in a qset's QHead + * @qset: the qset whose QH needs initializing with static endpoint + * state + * @urb: an urb for a transfer to this endpoint + */ +static void qset_fill_qh(struct whc_qset *qset, struct urb *urb) +{ + struct usb_device *usb_dev = urb->dev; + struct usb_wireless_ep_comp_descriptor *epcd; + bool is_out; + + is_out = usb_pipeout(urb->pipe); + + epcd = (struct usb_wireless_ep_comp_descriptor *)qset->ep->extra; + + if (epcd) { + qset->max_seq = epcd->bMaxSequence; + qset->max_burst = epcd->bMaxBurst; + } else { + qset->max_seq = 2; + qset->max_burst = 1; + } + + qset->qh.info1 = cpu_to_le32( + QH_INFO1_EP(usb_pipeendpoint(urb->pipe)) + | (is_out ? QH_INFO1_DIR_OUT : QH_INFO1_DIR_IN) + | usb_pipe_to_qh_type(urb->pipe) + | QH_INFO1_DEV_INFO_IDX(wusb_port_no_to_idx(usb_dev->portnum)) + | QH_INFO1_MAX_PKT_LEN(usb_maxpacket(urb->dev, urb->pipe, is_out)) + ); + qset->qh.info2 = cpu_to_le32( + QH_INFO2_BURST(qset->max_burst) + | QH_INFO2_DBP(0) + | QH_INFO2_MAX_COUNT(3) + | QH_INFO2_MAX_RETRY(3) + | QH_INFO2_MAX_SEQ(qset->max_seq - 1) + ); + /* FIXME: where can we obtain these Tx parameters from? Why + * doesn't the chip know what Tx power to use? It knows the Rx + * strength and can presumably guess the Tx power required + * from that? */ + qset->qh.info3 = cpu_to_le32( + QH_INFO3_TX_RATE_53_3 + | QH_INFO3_TX_PWR(0) /* 0 == max power */ + ); +} + +/** + * qset_clear - clear fields in a qset so it may be reinserted into a + * schedule + */ +void qset_clear(struct whc *whc, struct whc_qset *qset) +{ + qset->td_start = qset->td_end = qset->ntds = 0; + qset->remove = 0; + + qset->qh.link = cpu_to_le32(QH_LINK_NTDS(8) | QH_LINK_T); + qset->qh.status = cpu_to_le16(QH_STATUS_ICUR(qset->td_start)); + qset->qh.err_count = 0; + qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1); + qset->qh.scratch[0] = 0; + qset->qh.scratch[1] = 0; + qset->qh.scratch[2] = 0; + + memset(&qset->qh.overlay, 0, sizeof(qset->qh.overlay)); + + init_completion(&qset->remove_complete); +} + +/** + * get_qset - get the qset for an async endpoint + * + * A new qset is created if one does not already exist. + */ +struct whc_qset *get_qset(struct whc *whc, struct urb *urb, + gfp_t mem_flags) +{ + struct whc_qset *qset; + + qset = urb->ep->hcpriv; + if (qset == NULL) { + qset = qset_alloc(whc, mem_flags); + if (qset == NULL) + return NULL; + + qset->ep = urb->ep; + urb->ep->hcpriv = qset; + qset_fill_qh(qset, urb); + } + return qset; +} + +void qset_remove_complete(struct whc *whc, struct whc_qset *qset) +{ + list_del_init(&qset->list_node); + complete(&qset->remove_complete); +} + +/** + * qset_add_qtds - add qTDs for an URB to a qset + * + * Returns true if the list (ASL/PZL) must be updated because (for a + * WHCI 0.95 controller) an activated qTD was pointed to be iCur. + */ +enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset) +{ + struct whc_std *std; + enum whc_update update = 0; + + list_for_each_entry(std, &qset->stds, list_node) { + struct whc_qtd *qtd; + uint32_t status; + + if (qset->ntds >= WHCI_QSET_TD_MAX + || (qset->pause_after_urb && std->urb != qset->pause_after_urb)) + break; + + if (std->qtd) + continue; /* already has a qTD */ + + qtd = std->qtd = &qset->qtd[qset->td_end]; + + /* Fill in setup bytes for control transfers. */ + if (usb_pipecontrol(std->urb->pipe)) + memcpy(qtd->setup, std->urb->setup_packet, 8); + + status = QTD_STS_ACTIVE | QTD_STS_LEN(std->len); + + if (whc_std_last(std) && usb_pipeout(std->urb->pipe)) + status |= QTD_STS_LAST_PKT; + + /* + * For an IN transfer the iAlt field should be set so + * the h/w will automatically advance to the next + * transfer. However, if there are 8 or more TDs + * remaining in this transfer then iAlt cannot be set + * as it could point to somewhere in this transfer. + */ + if (std->ntds_remaining < WHCI_QSET_TD_MAX) { + int ialt; + ialt = (qset->td_end + std->ntds_remaining) % WHCI_QSET_TD_MAX; + status |= QTD_STS_IALT(ialt); + } else if (usb_pipein(std->urb->pipe)) + qset->pause_after_urb = std->urb; + + if (std->num_pointers) + qtd->options = cpu_to_le32(QTD_OPT_IOC); + else + qtd->options = cpu_to_le32(QTD_OPT_IOC | QTD_OPT_SMALL); + qtd->page_list_ptr = cpu_to_le64(std->dma_addr); + + qtd->status = cpu_to_le32(status); + + if (QH_STATUS_TO_ICUR(qset->qh.status) == qset->td_end) + update = WHC_UPDATE_UPDATED; + + if (++qset->td_end >= WHCI_QSET_TD_MAX) + qset->td_end = 0; + qset->ntds++; + } + + return update; +} + +/** + * qset_remove_qtd - remove the first qTD from a qset. + * + * The qTD might be still active (if it's part of a IN URB that + * resulted in a short read) so ensure it's deactivated. + */ +static void qset_remove_qtd(struct whc *whc, struct whc_qset *qset) +{ + qset->qtd[qset->td_start].status = 0; + + if (++qset->td_start >= WHCI_QSET_TD_MAX) + qset->td_start = 0; + qset->ntds--; +} + +/** + * qset_free_std - remove an sTD and free it. + * @whc: the WHCI host controller + * @std: the sTD to remove and free. + */ +void qset_free_std(struct whc *whc, struct whc_std *std) +{ + list_del(&std->list_node); + if (std->num_pointers) { + dma_unmap_single(whc->wusbhc.dev, std->dma_addr, + std->num_pointers * sizeof(struct whc_page_list_entry), + DMA_TO_DEVICE); + kfree(std->pl_virt); + } + + kfree(std); +} + +/** + * qset_remove_qtds - remove an URB's qTDs (and sTDs). + */ +static void qset_remove_qtds(struct whc *whc, struct whc_qset *qset, + struct urb *urb) +{ + struct whc_std *std, *t; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb != urb) + break; + if (std->qtd != NULL) + qset_remove_qtd(whc, qset); + qset_free_std(whc, std); + } +} + +/** + * qset_free_stds - free any remaining sTDs for an URB. + */ +static void qset_free_stds(struct whc_qset *qset, struct urb *urb) +{ + struct whc_std *std, *t; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(qset->whc, std); + } +} + +static int qset_fill_page_list(struct whc *whc, struct whc_std *std, gfp_t mem_flags) +{ + dma_addr_t dma_addr = std->dma_addr; + dma_addr_t sp, ep; + size_t std_len = std->len; + size_t pl_len; + int p; + + sp = ALIGN(dma_addr, WHCI_PAGE_SIZE); + ep = dma_addr + std_len; + std->num_pointers = DIV_ROUND_UP(ep - sp, WHCI_PAGE_SIZE); + + pl_len = std->num_pointers * sizeof(struct whc_page_list_entry); + std->pl_virt = kmalloc(pl_len, mem_flags); + if (std->pl_virt == NULL) + return -ENOMEM; + std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, pl_len, DMA_TO_DEVICE); + + for (p = 0; p < std->num_pointers; p++) { + std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr); + dma_addr = ALIGN(dma_addr + WHCI_PAGE_SIZE, WHCI_PAGE_SIZE); + } + + return 0; +} + +/** + * urb_dequeue_work - executes asl/pzl update and gives back the urb to the system. + */ +static void urb_dequeue_work(struct work_struct *work) +{ + struct whc_urb *wurb = container_of(work, struct whc_urb, dequeue_work); + struct whc_qset *qset = wurb->qset; + struct whc *whc = qset->whc; + unsigned long flags; + + if (wurb->is_async == true) + asl_update(whc, WUSBCMD_ASYNC_UPDATED + | WUSBCMD_ASYNC_SYNCED_DB + | WUSBCMD_ASYNC_QSET_RM); + else + pzl_update(whc, WUSBCMD_PERIODIC_UPDATED + | WUSBCMD_PERIODIC_SYNCED_DB + | WUSBCMD_PERIODIC_QSET_RM); + + spin_lock_irqsave(&whc->lock, flags); + qset_remove_urb(whc, qset, wurb->urb, wurb->status); + spin_unlock_irqrestore(&whc->lock, flags); +} + +/** + * qset_add_urb - add an urb to the qset's queue. + * + * The URB is chopped into sTDs, one for each qTD that will required. + * At least one qTD (and sTD) is required even if the transfer has no + * data (e.g., for some control transfers). + */ +int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, + gfp_t mem_flags) +{ + struct whc_urb *wurb; + int remaining = urb->transfer_buffer_length; + u64 transfer_dma = urb->transfer_dma; + int ntds_remaining; + + ntds_remaining = DIV_ROUND_UP(remaining, QTD_MAX_XFER_SIZE); + if (ntds_remaining == 0) + ntds_remaining = 1; + + wurb = kzalloc(sizeof(struct whc_urb), mem_flags); + if (wurb == NULL) + goto err_no_mem; + urb->hcpriv = wurb; + wurb->qset = qset; + wurb->urb = urb; + INIT_WORK(&wurb->dequeue_work, urb_dequeue_work); + + while (ntds_remaining) { + struct whc_std *std; + size_t std_len; + + std = kmalloc(sizeof(struct whc_std), mem_flags); + if (std == NULL) + goto err_no_mem; + + std_len = remaining; + if (std_len > QTD_MAX_XFER_SIZE) + std_len = QTD_MAX_XFER_SIZE; + + std->urb = urb; + std->dma_addr = transfer_dma; + std->len = std_len; + std->ntds_remaining = ntds_remaining; + std->qtd = NULL; + + INIT_LIST_HEAD(&std->list_node); + list_add_tail(&std->list_node, &qset->stds); + + if (std_len > WHCI_PAGE_SIZE) { + if (qset_fill_page_list(whc, std, mem_flags) < 0) + goto err_no_mem; + } else + std->num_pointers = 0; + + ntds_remaining--; + remaining -= std_len; + transfer_dma += std_len; + } + + return 0; + +err_no_mem: + qset_free_stds(qset, urb); + return -ENOMEM; +} + +/** + * qset_remove_urb - remove an URB from the urb queue. + * + * The URB is returned to the USB subsystem. + */ +void qset_remove_urb(struct whc *whc, struct whc_qset *qset, + struct urb *urb, int status) +{ + struct wusbhc *wusbhc = &whc->wusbhc; + struct whc_urb *wurb = urb->hcpriv; + + usb_hcd_unlink_urb_from_ep(&wusbhc->usb_hcd, urb); + /* Drop the lock as urb->complete() may enqueue another urb. */ + spin_unlock(&whc->lock); + wusbhc_giveback_urb(wusbhc, urb, status); + spin_lock(&whc->lock); + + kfree(wurb); +} + +/** + * get_urb_status_from_qtd - get the completed urb status from qTD status + * @urb: completed urb + * @status: qTD status + */ +static int get_urb_status_from_qtd(struct urb *urb, u32 status) +{ + if (status & QTD_STS_HALTED) { + if (status & QTD_STS_DBE) + return usb_pipein(urb->pipe) ? -ENOSR : -ECOMM; + else if (status & QTD_STS_BABBLE) + return -EOVERFLOW; + else if (status & QTD_STS_RCE) + return -ETIME; + return -EPIPE; + } + if (usb_pipein(urb->pipe) + && (urb->transfer_flags & URB_SHORT_NOT_OK) + && urb->actual_length < urb->transfer_buffer_length) + return -EREMOTEIO; + return 0; +} + +/** + * process_inactive_qtd - process an inactive (but not halted) qTD. + * + * Update the urb with the transfer bytes from the qTD, if the urb is + * completely transfered or (in the case of an IN only) the LPF is + * set, then the transfer is complete and the urb should be returned + * to the system. + */ +void process_inactive_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd) +{ + struct whc_std *std = list_first_entry(&qset->stds, struct whc_std, list_node); + struct urb *urb = std->urb; + uint32_t status; + bool complete; + + status = le32_to_cpu(qtd->status); + + urb->actual_length += std->len - QTD_STS_TO_LEN(status); + + if (usb_pipein(urb->pipe) && (status & QTD_STS_LAST_PKT)) + complete = true; + else + complete = whc_std_last(std); + + qset_remove_qtd(whc, qset); + qset_free_std(whc, std); + + /* + * Transfers for this URB are complete? Then return it to the + * USB subsystem. + */ + if (complete) { + qset_remove_qtds(whc, qset, urb); + qset_remove_urb(whc, qset, urb, get_urb_status_from_qtd(urb, status)); + + /* + * If iAlt isn't valid then the hardware didn't + * advance iCur. Adjust the start and end pointers to + * match iCur. + */ + if (!(status & QTD_STS_IALT_VALID)) + qset->td_start = qset->td_end + = QH_STATUS_TO_ICUR(le16_to_cpu(qset->qh.status)); + qset->pause_after_urb = NULL; + } +} + +/** + * process_halted_qtd - process a qset with a halted qtd + * + * Remove all the qTDs for the failed URB and return the failed URB to + * the USB subsystem. Then remove all other qTDs so the qset can be + * removed. + * + * FIXME: this is the point where rate adaptation can be done. If a + * transfer failed because it exceeded the maximum number of retries + * then it could be reactivated with a slower rate without having to + * remove the qset. + */ +void process_halted_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd) +{ + struct whc_std *std = list_first_entry(&qset->stds, struct whc_std, list_node); + struct urb *urb = std->urb; + int urb_status; + + urb_status = get_urb_status_from_qtd(urb, le32_to_cpu(qtd->status)); + + qset_remove_qtds(whc, qset, urb); + qset_remove_urb(whc, qset, urb, urb_status); + + list_for_each_entry(std, &qset->stds, list_node) { + if (qset->ntds == 0) + break; + qset_remove_qtd(whc, qset); + std->qtd = NULL; + } + + qset->remove = 1; +} + +void qset_free(struct whc *whc, struct whc_qset *qset) +{ + dma_pool_free(whc->qset_pool, qset, qset->qset_dma); +} + +/** + * qset_delete - wait for a qset to be unused, then free it. + */ +void qset_delete(struct whc *whc, struct whc_qset *qset) +{ + wait_for_completion(&qset->remove_complete); + qset_free(whc, qset); +} diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h new file mode 100644 index 000000000000..1d2a53bd39fd --- /dev/null +++ b/drivers/usb/host/whci/whcd.h @@ -0,0 +1,197 @@ +/* + * Wireless Host Controller (WHC) private header. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ +#ifndef __WHCD_H +#define __WHCD_H + +#include <linux/uwb/whci.h> +#include <linux/workqueue.h> + +#include "whci-hc.h" + +/* Generic command timeout. */ +#define WHC_GENCMD_TIMEOUT_MS 100 + + +struct whc { + struct wusbhc wusbhc; + struct umc_dev *umc; + + resource_size_t base_phys; + void __iomem *base; + int irq; + + u8 n_devices; + u8 n_keys; + u8 n_mmc_ies; + + u64 *pz_list; + struct dn_buf_entry *dn_buf; + struct di_buf_entry *di_buf; + dma_addr_t pz_list_dma; + dma_addr_t dn_buf_dma; + dma_addr_t di_buf_dma; + + spinlock_t lock; + struct mutex mutex; + + void * gen_cmd_buf; + dma_addr_t gen_cmd_buf_dma; + wait_queue_head_t cmd_wq; + + struct workqueue_struct *workqueue; + struct work_struct dn_work; + + struct dma_pool *qset_pool; + + struct list_head async_list; + struct list_head async_removed_list; + wait_queue_head_t async_list_wq; + struct work_struct async_work; + + struct list_head periodic_list[5]; + struct list_head periodic_removed_list; + wait_queue_head_t periodic_list_wq; + struct work_struct periodic_work; +}; + +#define wusbhc_to_whc(w) (container_of((w), struct whc, wusbhc)) + +/** + * struct whc_std - a software TD. + * @urb: the URB this sTD is for. + * @offset: start of the URB's data for this TD. + * @len: the length of data in the associated TD. + * @ntds_remaining: number of TDs (starting from this one) in this transfer. + * + * Queued URBs may require more TDs than are available in a qset so we + * use a list of these "software TDs" (sTDs) to hold per-TD data. + */ +struct whc_std { + struct urb *urb; + size_t len; + int ntds_remaining; + struct whc_qtd *qtd; + + struct list_head list_node; + int num_pointers; + dma_addr_t dma_addr; + struct whc_page_list_entry *pl_virt; +}; + +/** + * struct whc_urb - per URB host controller structure. + * @urb: the URB this struct is for. + * @qset: the qset associated to the URB. + * @dequeue_work: the work to remove the URB when dequeued. + * @is_async: the URB belongs to async sheduler or not. + * @status: the status to be returned when calling wusbhc_giveback_urb. + */ +struct whc_urb { + struct urb *urb; + struct whc_qset *qset; + struct work_struct dequeue_work; + bool is_async; + int status; +}; + +/** + * whc_std_last - is this sTD the URB's last? + * @std: the sTD to check. + */ +static inline bool whc_std_last(struct whc_std *std) +{ + return std->ntds_remaining <= 1; +} + +enum whc_update { + WHC_UPDATE_ADDED = 0x01, + WHC_UPDATE_REMOVED = 0x02, + WHC_UPDATE_UPDATED = 0x04, +}; + +/* init.c */ +int whc_init(struct whc *whc); +void whc_clean_up(struct whc *whc); + +/* hw.c */ +void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val); +int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len); + +/* wusb.c */ +int whc_wusbhc_start(struct wusbhc *wusbhc); +void whc_wusbhc_stop(struct wusbhc *wusbhc); +int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + u8 handle, struct wuie_hdr *wuie); +int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle); +int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm); +int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev); +int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots); +int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *ptk, size_t key_size); +int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *gtk, size_t key_size); +int whc_set_cluster_id(struct whc *whc, u8 bcid); + +/* int.c */ +irqreturn_t whc_int_handler(struct usb_hcd *hcd); +void whc_dn_work(struct work_struct *work); + +/* asl.c */ +void asl_start(struct whc *whc); +void asl_stop(struct whc *whc); +int asl_init(struct whc *whc); +void asl_clean_up(struct whc *whc); +int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags); +int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status); +void asl_qset_delete(struct whc *whc, struct whc_qset *qset); +void scan_async_work(struct work_struct *work); + +/* pzl.c */ +int pzl_init(struct whc *whc); +void pzl_clean_up(struct whc *whc); +void pzl_start(struct whc *whc); +void pzl_stop(struct whc *whc); +int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags); +int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status); +void pzl_qset_delete(struct whc *whc, struct whc_qset *qset); +void scan_periodic_work(struct work_struct *work); + +/* qset.c */ +struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags); +void qset_free(struct whc *whc, struct whc_qset *qset); +struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags); +void qset_delete(struct whc *whc, struct whc_qset *qset); +void qset_clear(struct whc *whc, struct whc_qset *qset); +int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, + gfp_t mem_flags); +void qset_free_std(struct whc *whc, struct whc_std *std); +void qset_remove_urb(struct whc *whc, struct whc_qset *qset, + struct urb *urb, int status); +void process_halted_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd); +void process_inactive_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd); +enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset); +void qset_remove_complete(struct whc *whc, struct whc_qset *qset); +void dump_qset(struct whc_qset *qset, struct device *dev); +void pzl_update(struct whc *whc, uint32_t wusbcmd); +void asl_update(struct whc *whc, uint32_t wusbcmd); + +#endif /* #ifndef __WHCD_H */ diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h new file mode 100644 index 000000000000..bff1eb7a35cf --- /dev/null +++ b/drivers/usb/host/whci/whci-hc.h @@ -0,0 +1,416 @@ +/* + * Wireless Host Controller (WHC) data structures. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ +#ifndef _WHCI_WHCI_HC_H +#define _WHCI_WHCI_HC_H + +#include <linux/list.h> + +/** + * WHCI_PAGE_SIZE - page size use by WHCI + * + * WHCI assumes that host system uses pages of 4096 octets. + */ +#define WHCI_PAGE_SIZE 4096 + + +/** + * QTD_MAX_TXFER_SIZE - max number of bytes to transfer with a single + * qtd. + * + * This is 2^20 - 1. + */ +#define QTD_MAX_XFER_SIZE 1048575 + + +/** + * struct whc_qtd - Queue Element Transfer Descriptors (qTD) + * + * This describes the data for a bulk, control or interrupt transfer. + * + * [WHCI] section 3.2.4 + */ +struct whc_qtd { + __le32 status; /*< remaining transfer len and transfer status */ + __le32 options; + __le64 page_list_ptr; /*< physical pointer to data buffer page list*/ + __u8 setup[8]; /*< setup data for control transfers */ +} __attribute__((packed)); + +#define QTD_STS_ACTIVE (1 << 31) /* enable execution of transaction */ +#define QTD_STS_HALTED (1 << 30) /* transfer halted */ +#define QTD_STS_DBE (1 << 29) /* data buffer error */ +#define QTD_STS_BABBLE (1 << 28) /* babble detected */ +#define QTD_STS_RCE (1 << 27) /* retry count exceeded */ +#define QTD_STS_LAST_PKT (1 << 26) /* set Last Packet Flag in WUSB header */ +#define QTD_STS_INACTIVE (1 << 25) /* queue set is marked inactive */ +#define QTD_STS_IALT_VALID (1 << 23) /* iAlt field is valid */ +#define QTD_STS_IALT(i) (QTD_STS_IALT_VALID | ((i) << 20)) /* iAlt field */ +#define QTD_STS_LEN(l) ((l) << 0) /* transfer length */ +#define QTD_STS_TO_LEN(s) ((s) & 0x000fffff) + +#define QTD_OPT_IOC (1 << 1) /* page_list_ptr points to buffer directly */ +#define QTD_OPT_SMALL (1 << 0) /* interrupt on complete */ + +/** + * struct whc_itd - Isochronous Queue Element Transfer Descriptors (iTD) + * + * This describes the data and other parameters for an isochronous + * transfer. + * + * [WHCI] section 3.2.5 + */ +struct whc_itd { + __le16 presentation_time; /*< presentation time for OUT transfers */ + __u8 num_segments; /*< number of data segments in segment list */ + __u8 status; /*< command execution status */ + __le32 options; /*< misc transfer options */ + __le64 page_list_ptr; /*< physical pointer to data buffer page list */ + __le64 seg_list_ptr; /*< physical pointer to segment list */ +} __attribute__((packed)); + +#define ITD_STS_ACTIVE (1 << 7) /* enable execution of transaction */ +#define ITD_STS_DBE (1 << 5) /* data buffer error */ +#define ITD_STS_BABBLE (1 << 4) /* babble detected */ +#define ITD_STS_INACTIVE (1 << 1) /* queue set is marked inactive */ + +#define ITD_OPT_IOC (1 << 1) /* interrupt on complete */ +#define ITD_OPT_SMALL (1 << 0) /* page_list_ptr points to buffer directly */ + +/** + * Page list entry. + * + * A TD's page list must contain sufficient page list entries for the + * total data length in the TD. + * + * [WHCI] section 3.2.4.3 + */ +struct whc_page_list_entry { + __le64 buf_ptr; /*< physical pointer to buffer */ +} __attribute__((packed)); + +/** + * struct whc_seg_list_entry - Segment list entry. + * + * Describes a portion of the data buffer described in the containing + * qTD's page list. + * + * seg_ptr = qtd->page_list_ptr[qtd->seg_list_ptr[seg].idx].buf_ptr + * + qtd->seg_list_ptr[seg].offset; + * + * Segments can't cross page boundries. + * + * [WHCI] section 3.2.5.5 + */ +struct whc_seg_list_entry { + __le16 len; /*< segment length */ + __u8 idx; /*< index into page list */ + __u8 status; /*< segment status */ + __le16 offset; /*< 12 bit offset into page */ +} __attribute__((packed)); + +/** + * struct whc_qhead - endpoint and status information for a qset. + * + * [WHCI] section 3.2.6 + */ +struct whc_qhead { + __le64 link; /*< next qset in list */ + __le32 info1; + __le32 info2; + __le32 info3; + __le16 status; + __le16 err_count; /*< transaction error count */ + __le32 cur_window; + __le32 scratch[3]; /*< h/w scratch area */ + union { + struct whc_qtd qtd; + struct whc_itd itd; + } overlay; +} __attribute__((packed)); + +#define QH_LINK_PTR_MASK (~0x03Full) +#define QH_LINK_PTR(ptr) ((ptr) & QH_LINK_PTR_MASK) +#define QH_LINK_IQS (1 << 4) /* isochronous queue set */ +#define QH_LINK_NTDS(n) (((n) - 1) << 1) /* number of TDs in queue set */ +#define QH_LINK_T (1 << 0) /* last queue set in periodic schedule list */ + +#define QH_INFO1_EP(e) ((e) << 0) /* endpoint number */ +#define QH_INFO1_DIR_IN (1 << 4) /* IN transfer */ +#define QH_INFO1_DIR_OUT (0 << 4) /* OUT transfer */ +#define QH_INFO1_TR_TYPE_CTRL (0x0 << 5) /* control transfer */ +#define QH_INFO1_TR_TYPE_ISOC (0x1 << 5) /* isochronous transfer */ +#define QH_INFO1_TR_TYPE_BULK (0x2 << 5) /* bulk transfer */ +#define QH_INFO1_TR_TYPE_INT (0x3 << 5) /* interrupt */ +#define QH_INFO1_TR_TYPE_LP_INT (0x7 << 5) /* low power interrupt */ +#define QH_INFO1_DEV_INFO_IDX(i) ((i) << 8) /* index into device info buffer */ +#define QH_INFO1_SET_INACTIVE (1 << 15) /* set inactive after transfer */ +#define QH_INFO1_MAX_PKT_LEN(l) ((l) << 16) /* maximum packet length */ + +#define QH_INFO2_BURST(b) ((b) << 0) /* maximum burst length */ +#define QH_INFO2_DBP(p) ((p) << 5) /* data burst policy (see [WUSB] table 5-7) */ +#define QH_INFO2_MAX_COUNT(c) ((c) << 8) /* max isoc/int pkts per zone */ +#define QH_INFO2_RQS (1 << 15) /* reactivate queue set */ +#define QH_INFO2_MAX_RETRY(r) ((r) << 16) /* maximum transaction retries */ +#define QH_INFO2_MAX_SEQ(s) ((s) << 20) /* maximum sequence number */ +#define QH_INFO3_MAX_DELAY(d) ((d) << 0) /* maximum stream delay in 125 us units (isoc only) */ +#define QH_INFO3_INTERVAL(i) ((i) << 16) /* segment interval in 125 us units (isoc only) */ + +#define QH_INFO3_TX_RATE_53_3 (0 << 24) +#define QH_INFO3_TX_RATE_80 (1 << 24) +#define QH_INFO3_TX_RATE_106_7 (2 << 24) +#define QH_INFO3_TX_RATE_160 (3 << 24) +#define QH_INFO3_TX_RATE_200 (4 << 24) +#define QH_INFO3_TX_RATE_320 (5 << 24) +#define QH_INFO3_TX_RATE_400 (6 << 24) +#define QH_INFO3_TX_RATE_480 (7 << 24) +#define QH_INFO3_TX_PWR(p) ((p) << 29) /* transmit power (see [WUSB] section 5.2.1.2) */ + +#define QH_STATUS_FLOW_CTRL (1 << 15) +#define QH_STATUS_ICUR(i) ((i) << 5) +#define QH_STATUS_TO_ICUR(s) (((s) >> 5) & 0x7) + +/** + * usb_pipe_to_qh_type - USB core pipe type to QH transfer type + * + * Returns the QH type field for a USB core pipe type. + */ +static inline unsigned usb_pipe_to_qh_type(unsigned pipe) +{ + static const unsigned type[] = { + [PIPE_ISOCHRONOUS] = QH_INFO1_TR_TYPE_ISOC, + [PIPE_INTERRUPT] = QH_INFO1_TR_TYPE_INT, + [PIPE_CONTROL] = QH_INFO1_TR_TYPE_CTRL, + [PIPE_BULK] = QH_INFO1_TR_TYPE_BULK, + }; + return type[usb_pipetype(pipe)]; +} + +/** + * Maxiumum number of TDs in a qset. + */ +#define WHCI_QSET_TD_MAX 8 + +/** + * struct whc_qset - WUSB data transfers to a specific endpoint + * @qh: the QHead of this qset + * @qtd: up to 8 qTDs (for qsets for control, bulk and interrupt + * transfers) + * @itd: up to 8 iTDs (for qsets for isochronous transfers) + * @qset_dma: DMA address for this qset + * @whc: WHCI HC this qset is for + * @ep: endpoint + * @stds: list of sTDs queued to this qset + * @ntds: number of qTDs queued (not necessarily the same as nTDs + * field in the QH) + * @td_start: index of the first qTD in the list + * @td_end: index of next free qTD in the list (provided + * ntds < WHCI_QSET_TD_MAX) + * + * Queue Sets (qsets) are added to the asynchronous schedule list + * (ASL) or the periodic zone list (PZL). + * + * qsets may contain up to 8 TDs (either qTDs or iTDs as appropriate). + * Each TD may refer to at most 1 MiB of data. If a single transfer + * has > 8MiB of data, TDs can be reused as they are completed since + * the TD list is used as a circular buffer. Similarly, several + * (smaller) transfers may be queued in a qset. + * + * WHCI controllers may cache portions of the qsets in the ASL and + * PZL, requiring the WHCD to inform the WHC that the lists have been + * updated (fields changed or qsets inserted or removed). For safe + * insertion and removal of qsets from the lists the schedule must be + * stopped to avoid races in updating the QH link pointers. + * + * Since the HC is free to execute qsets in any order, all transfers + * to an endpoint should use the same qset to ensure transfers are + * executed in the order they're submitted. + * + * [WHCI] section 3.2.3 + */ +struct whc_qset { + struct whc_qhead qh; + union { + struct whc_qtd qtd[WHCI_QSET_TD_MAX]; + struct whc_itd itd[WHCI_QSET_TD_MAX]; + }; + + /* private data for WHCD */ + dma_addr_t qset_dma; + struct whc *whc; + struct usb_host_endpoint *ep; + struct list_head stds; + int ntds; + int td_start; + int td_end; + struct list_head list_node; + unsigned in_sw_list:1; + unsigned in_hw_list:1; + unsigned remove:1; + struct urb *pause_after_urb; + struct completion remove_complete; + int max_burst; + int max_seq; +}; + +static inline void whc_qset_set_link_ptr(u64 *ptr, u64 target) +{ + if (target) + *ptr = (*ptr & ~(QH_LINK_PTR_MASK | QH_LINK_T)) | QH_LINK_PTR(target); + else + *ptr = QH_LINK_T; +} + +/** + * struct di_buf_entry - Device Information (DI) buffer entry. + * + * There's one of these per connected device. + */ +struct di_buf_entry { + __le32 availability_info[8]; /*< MAS availability information, one MAS per bit */ + __le32 addr_sec_info; /*< addressing and security info */ + __le32 reserved[7]; +} __attribute__((packed)); + +#define WHC_DI_SECURE (1 << 31) +#define WHC_DI_DISABLE (1 << 30) +#define WHC_DI_KEY_IDX(k) ((k) << 8) +#define WHC_DI_KEY_IDX_MASK 0x0000ff00 +#define WHC_DI_DEV_ADDR(a) ((a) << 0) +#define WHC_DI_DEV_ADDR_MASK 0x000000ff + +/** + * struct dn_buf_entry - Device Notification (DN) buffer entry. + * + * [WHCI] section 3.2.8 + */ +struct dn_buf_entry { + __u8 msg_size; /*< number of octets of valid DN data */ + __u8 reserved1; + __u8 src_addr; /*< source address */ + __u8 status; /*< buffer entry status */ + __le32 tkid; /*< TKID for source device, valid if secure bit is set */ + __u8 dn_data[56]; /*< up to 56 octets of DN data */ +} __attribute__((packed)); + +#define WHC_DN_STATUS_VALID (1 << 7) /* buffer entry is valid */ +#define WHC_DN_STATUS_SECURE (1 << 6) /* notification received using secure frame */ + +#define WHC_N_DN_ENTRIES (4096 / sizeof(struct dn_buf_entry)) + +/* The Add MMC IE WUSB Generic Command may take up to 256 bytes of + data. [WHCI] section 2.4.7. */ +#define WHC_GEN_CMD_DATA_LEN 256 + +/* + * HC registers. + * + * [WHCI] section 2.4 + */ + +#define WHCIVERSION 0x00 + +#define WHCSPARAMS 0x04 +# define WHCSPARAMS_TO_N_MMC_IES(p) (((p) >> 16) & 0xff) +# define WHCSPARAMS_TO_N_KEYS(p) (((p) >> 8) & 0xff) +# define WHCSPARAMS_TO_N_DEVICES(p) (((p) >> 0) & 0x7f) + +#define WUSBCMD 0x08 +# define WUSBCMD_BCID(b) ((b) << 16) +# define WUSBCMD_BCID_MASK (0xff << 16) +# define WUSBCMD_ASYNC_QSET_RM (1 << 12) +# define WUSBCMD_PERIODIC_QSET_RM (1 << 11) +# define WUSBCMD_WUSBSI(s) ((s) << 8) +# define WUSBCMD_WUSBSI_MASK (0x7 << 8) +# define WUSBCMD_ASYNC_SYNCED_DB (1 << 7) +# define WUSBCMD_PERIODIC_SYNCED_DB (1 << 6) +# define WUSBCMD_ASYNC_UPDATED (1 << 5) +# define WUSBCMD_PERIODIC_UPDATED (1 << 4) +# define WUSBCMD_ASYNC_EN (1 << 3) +# define WUSBCMD_PERIODIC_EN (1 << 2) +# define WUSBCMD_WHCRESET (1 << 1) +# define WUSBCMD_RUN (1 << 0) + +#define WUSBSTS 0x0c +# define WUSBSTS_ASYNC_SCHED (1 << 15) +# define WUSBSTS_PERIODIC_SCHED (1 << 14) +# define WUSBSTS_DNTS_SCHED (1 << 13) +# define WUSBSTS_HCHALTED (1 << 12) +# define WUSBSTS_GEN_CMD_DONE (1 << 9) +# define WUSBSTS_CHAN_TIME_ROLLOVER (1 << 8) +# define WUSBSTS_DNTS_OVERFLOW (1 << 7) +# define WUSBSTS_BPST_ADJUSTMENT_CHANGED (1 << 6) +# define WUSBSTS_HOST_ERR (1 << 5) +# define WUSBSTS_ASYNC_SCHED_SYNCED (1 << 4) +# define WUSBSTS_PERIODIC_SCHED_SYNCED (1 << 3) +# define WUSBSTS_DNTS_INT (1 << 2) +# define WUSBSTS_ERR_INT (1 << 1) +# define WUSBSTS_INT (1 << 0) +# define WUSBSTS_INT_MASK 0x3ff + +#define WUSBINTR 0x10 +# define WUSBINTR_GEN_CMD_DONE (1 << 9) +# define WUSBINTR_CHAN_TIME_ROLLOVER (1 << 8) +# define WUSBINTR_DNTS_OVERFLOW (1 << 7) +# define WUSBINTR_BPST_ADJUSTMENT_CHANGED (1 << 6) +# define WUSBINTR_HOST_ERR (1 << 5) +# define WUSBINTR_ASYNC_SCHED_SYNCED (1 << 4) +# define WUSBINTR_PERIODIC_SCHED_SYNCED (1 << 3) +# define WUSBINTR_DNTS_INT (1 << 2) +# define WUSBINTR_ERR_INT (1 << 1) +# define WUSBINTR_INT (1 << 0) +# define WUSBINTR_ALL 0x3ff + +#define WUSBGENCMDSTS 0x14 +# define WUSBGENCMDSTS_ACTIVE (1 << 31) +# define WUSBGENCMDSTS_ERROR (1 << 24) +# define WUSBGENCMDSTS_IOC (1 << 23) +# define WUSBGENCMDSTS_MMCIE_ADD 0x01 +# define WUSBGENCMDSTS_MMCIE_RM 0x02 +# define WUSBGENCMDSTS_SET_MAS 0x03 +# define WUSBGENCMDSTS_CHAN_STOP 0x04 +# define WUSBGENCMDSTS_RWP_EN 0x05 + +#define WUSBGENCMDPARAMS 0x18 +#define WUSBGENADDR 0x20 +#define WUSBASYNCLISTADDR 0x28 +#define WUSBDNTSBUFADDR 0x30 +#define WUSBDEVICEINFOADDR 0x38 + +#define WUSBSETSECKEYCMD 0x40 +# define WUSBSETSECKEYCMD_SET (1 << 31) +# define WUSBSETSECKEYCMD_ERASE (1 << 30) +# define WUSBSETSECKEYCMD_GTK (1 << 8) +# define WUSBSETSECKEYCMD_IDX(i) ((i) << 0) + +#define WUSBTKID 0x44 +#define WUSBSECKEY 0x48 +#define WUSBPERIODICLISTBASE 0x58 +#define WUSBMASINDEX 0x60 + +#define WUSBDNTSCTRL 0x64 +# define WUSBDNTSCTRL_ACTIVE (1 << 31) +# define WUSBDNTSCTRL_INTERVAL(i) ((i) << 8) +# define WUSBDNTSCTRL_SLOTS(s) ((s) << 0) + +#define WUSBTIME 0x68 +#define WUSBBPST 0x6c +#define WUSBDIBUPDATED 0x70 + +#endif /* #ifndef _WHCI_WHCI_HC_H */ diff --git a/drivers/usb/host/whci/wusb.c b/drivers/usb/host/whci/wusb.c new file mode 100644 index 000000000000..66e4ddcd961d --- /dev/null +++ b/drivers/usb/host/whci/wusb.c @@ -0,0 +1,241 @@ +/* + * Wireless Host Controller (WHC) WUSB operations. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> +#define D_LOCAL 1 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 1 +static void dump_di(struct whc *whc, int idx) +{ + struct di_buf_entry *di = &whc->di_buf[idx]; + struct device *dev = &whc->umc->dev; + char buf[128]; + + bitmap_scnprintf(buf, sizeof(buf), (unsigned long *)di->availability_info, UWB_NUM_MAS); + + d_printf(1, dev, "DI[%d]\n", idx); + d_printf(1, dev, " availability: %s\n", buf); + d_printf(1, dev, " %c%c key idx: %d dev addr: %d\n", + (di->addr_sec_info & WHC_DI_SECURE) ? 'S' : ' ', + (di->addr_sec_info & WHC_DI_DISABLE) ? 'D' : ' ', + (di->addr_sec_info & WHC_DI_KEY_IDX_MASK) >> 8, + (di->addr_sec_info & WHC_DI_DEV_ADDR_MASK)); +} +#else +static inline void dump_di(struct whc *whc, int idx) +{ +} +#endif + +static int whc_update_di(struct whc *whc, int idx) +{ + int offset = idx / 32; + u32 bit = 1 << (idx % 32); + + dump_di(whc, idx); + + le_writel(bit, whc->base + WUSBDIBUPDATED + offset); + + return whci_wait_for(&whc->umc->dev, + whc->base + WUSBDIBUPDATED + offset, bit, 0, + 100, "DI update"); +} + +/* + * WHCI starts and stops MMCs based on there being a valid GTK so + * these need only start/stop the asynchronous and periodic schedules. + */ + +int whc_wusbhc_start(struct wusbhc *wusbhc) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + asl_start(whc); + pzl_start(whc); + + return 0; +} + +void whc_wusbhc_stop(struct wusbhc *wusbhc) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + pzl_stop(whc); + asl_stop(whc); +} + +int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + u8 handle, struct wuie_hdr *wuie) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 params; + + params = (interval << 24) + | (repeat_cnt << 16) + | (wuie->bLength << 8) + | handle; + + return whc_do_gencmd(whc, WUSBGENCMDSTS_MMCIE_ADD, params, wuie, wuie->bLength); +} + +int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 params; + + params = handle; + + return whc_do_gencmd(whc, WUSBGENCMDSTS_MMCIE_RM, params, NULL, 0); +} + +int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + if (stream_index >= 0) + whc_write_wusbcmd(whc, WUSBCMD_WUSBSI_MASK, WUSBCMD_WUSBSI(stream_index)); + + return whc_do_gencmd(whc, WUSBGENCMDSTS_SET_MAS, 0, (void *)mas_bm, sizeof(*mas_bm)); +} + +int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + int idx = wusb_dev->port_idx; + struct di_buf_entry *di = &whc->di_buf[idx]; + int ret; + + mutex_lock(&whc->mutex); + + uwb_mas_bm_copy_le(di->availability_info, &wusb_dev->availability); + di->addr_sec_info &= ~(WHC_DI_DISABLE | WHC_DI_DEV_ADDR_MASK); + di->addr_sec_info |= WHC_DI_DEV_ADDR(wusb_dev->addr); + + ret = whc_update_di(whc, idx); + + mutex_unlock(&whc->mutex); + + return ret; +} + +/* + * Set the number of Device Notification Time Slots (DNTS) and enable + * device notifications. + */ +int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 dntsctrl; + + dntsctrl = WUSBDNTSCTRL_ACTIVE + | WUSBDNTSCTRL_INTERVAL(interval) + | WUSBDNTSCTRL_SLOTS(slots); + + le_writel(dntsctrl, whc->base + WUSBDNTSCTRL); + + return 0; +} + +static int whc_set_key(struct whc *whc, u8 key_index, uint32_t tkid, + const void *key, size_t key_size, bool is_gtk) +{ + uint32_t setkeycmd; + uint32_t seckey[4]; + int i; + int ret; + + memcpy(seckey, key, key_size); + setkeycmd = WUSBSETSECKEYCMD_SET | WUSBSETSECKEYCMD_IDX(key_index); + if (is_gtk) + setkeycmd |= WUSBSETSECKEYCMD_GTK; + + le_writel(tkid, whc->base + WUSBTKID); + for (i = 0; i < 4; i++) + le_writel(seckey[i], whc->base + WUSBSECKEY + 4*i); + le_writel(setkeycmd, whc->base + WUSBSETSECKEYCMD); + + ret = whci_wait_for(&whc->umc->dev, whc->base + WUSBSETSECKEYCMD, + WUSBSETSECKEYCMD_SET, 0, 100, "set key"); + + return ret; +} + +/** + * whc_set_ptk - set the PTK to use for a device. + * + * The index into the key table for this PTK is the same as the + * device's port index. + */ +int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *ptk, size_t key_size) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + struct di_buf_entry *di = &whc->di_buf[port_idx]; + int ret; + + mutex_lock(&whc->mutex); + + if (ptk) { + ret = whc_set_key(whc, port_idx, tkid, ptk, key_size, false); + if (ret) + goto out; + + di->addr_sec_info &= ~WHC_DI_KEY_IDX_MASK; + di->addr_sec_info |= WHC_DI_SECURE | WHC_DI_KEY_IDX(port_idx); + } else + di->addr_sec_info &= ~WHC_DI_SECURE; + + ret = whc_update_di(whc, port_idx); +out: + mutex_unlock(&whc->mutex); + return ret; +} + +/** + * whc_set_gtk - set the GTK for subsequent broadcast packets + * + * The GTK is stored in the last entry in the key table (the previous + * N_DEVICES entries are for the per-device PTKs). + */ +int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *gtk, size_t key_size) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + mutex_lock(&whc->mutex); + + ret = whc_set_key(whc, whc->n_devices, tkid, gtk, key_size, true); + + mutex_unlock(&whc->mutex); + + return ret; +} + +int whc_set_cluster_id(struct whc *whc, u8 bcid) +{ + whc_write_wusbcmd(whc, WUSBCMD_BCID_MASK, WUSBCMD_BCID(bcid)); + return 0; +} |
