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-rw-r--r--drivers/usb/host/Makefile5
-rw-r--r--drivers/usb/host/ehci-hcd.c543
-rw-r--r--drivers/usb/host/ehci-hub.c8
-rw-r--r--drivers/usb/host/ehci-pci.c415
-rw-r--r--drivers/usb/host/ehci.h1
-rw-r--r--drivers/usb/host/isp116x-hcd.c56
-rw-r--r--drivers/usb/host/isp116x.h1
-rw-r--r--drivers/usb/host/ohci-au1xxx.c8
-rw-r--r--drivers/usb/host/ohci-dbg.c4
-rw-r--r--drivers/usb/host/ohci-hcd.c4
-rw-r--r--drivers/usb/host/ohci-hub.c52
-rw-r--r--drivers/usb/host/ohci-lh7a404.c8
-rw-r--r--drivers/usb/host/ohci-mem.c1
-rw-r--r--drivers/usb/host/ohci-omap.c59
-rw-r--r--drivers/usb/host/ohci-pci.c49
-rw-r--r--drivers/usb/host/ohci-ppc-soc.c11
-rw-r--r--drivers/usb/host/ohci-pxa27x.c14
-rw-r--r--drivers/usb/host/ohci-s3c2410.c11
-rw-r--r--drivers/usb/host/ohci-sa1111.c7
-rw-r--r--drivers/usb/host/ohci.h1
-rw-r--r--drivers/usb/host/pci-quirks.c319
-rw-r--r--drivers/usb/host/sl811-hcd.c28
-rw-r--r--drivers/usb/host/sl811_cs.c1
-rw-r--r--drivers/usb/host/uhci-debug.c5
-rw-r--r--drivers/usb/host/uhci-hcd.c178
-rw-r--r--drivers/usb/host/uhci-hcd.h98
-rw-r--r--drivers/usb/host/uhci-q.c62
27 files changed, 1091 insertions, 858 deletions
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 350d14fc1cc..58321d3f314 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -1,8 +1,9 @@
#
-# Makefile for USB Host Controller Driver
-# framework and drivers
+# Makefile for USB Host Controller Drivers
#
+obj-$(CONFIG_PCI) += pci-quirks.o
+
obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o
obj-$(CONFIG_USB_OHCI_HCD) += ohci-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index f5eb9e7b5b1..af3c05eb86f 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -182,6 +182,9 @@ static int ehci_halt (struct ehci_hcd *ehci)
{
u32 temp = readl (&ehci->regs->status);
+ /* disable any irqs left enabled by previous code */
+ writel (0, &ehci->regs->intr_enable);
+
if ((temp & STS_HALT) != 0)
return 0;
@@ -297,50 +300,17 @@ static void ehci_watchdog (unsigned long param)
spin_unlock_irqrestore (&ehci->lock, flags);
}
-#ifdef CONFIG_PCI
-
-/* EHCI 0.96 (and later) section 5.1 says how to kick BIOS/SMM/...
- * off the controller (maybe it can boot from highspeed USB disks).
+/* Reboot notifiers kick in for silicon on any bus (not just pci, etc).
+ * This forcibly disables dma and IRQs, helping kexec and other cases
+ * where the next system software may expect clean state.
*/
-static int bios_handoff (struct ehci_hcd *ehci, int where, u32 cap)
-{
- struct pci_dev *pdev = to_pci_dev(ehci_to_hcd(ehci)->self.controller);
-
- /* always say Linux will own the hardware */
- pci_write_config_byte(pdev, where + 3, 1);
-
- /* maybe wait a while for BIOS to respond */
- if (cap & (1 << 16)) {
- int msec = 5000;
-
- do {
- msleep(10);
- msec -= 10;
- pci_read_config_dword(pdev, where, &cap);
- } while ((cap & (1 << 16)) && msec);
- if (cap & (1 << 16)) {
- ehci_err(ehci, "BIOS handoff failed (%d, %08x)\n",
- where, cap);
- // some BIOS versions seem buggy...
- // return 1;
- ehci_warn (ehci, "continuing after BIOS bug...\n");
- /* disable all SMIs, and clear "BIOS owns" flag */
- pci_write_config_dword(pdev, where + 4, 0);
- pci_write_config_byte(pdev, where + 2, 0);
- } else
- ehci_dbg(ehci, "BIOS handoff succeeded\n");
- }
- return 0;
-}
-
-#endif
-
static int
ehci_reboot (struct notifier_block *self, unsigned long code, void *null)
{
struct ehci_hcd *ehci;
ehci = container_of (self, struct ehci_hcd, reboot_notifier);
+ (void) ehci_halt (ehci);
/* make BIOS/etc use companion controller during reboot */
writel (0, &ehci->regs->configured_flag);
@@ -363,156 +333,90 @@ static void ehci_port_power (struct ehci_hcd *ehci, int is_on)
msleep(20);
}
+/*-------------------------------------------------------------------------*/
+
+/*
+ * ehci_work is called from some interrupts, timers, and so on.
+ * it calls driver completion functions, after dropping ehci->lock.
+ */
+static void ehci_work (struct ehci_hcd *ehci, struct pt_regs *regs)
+{
+ timer_action_done (ehci, TIMER_IO_WATCHDOG);
+ if (ehci->reclaim_ready)
+ end_unlink_async (ehci, regs);
+
+ /* another CPU may drop ehci->lock during a schedule scan while
+ * it reports urb completions. this flag guards against bogus
+ * attempts at re-entrant schedule scanning.
+ */
+ if (ehci->scanning)
+ return;
+ ehci->scanning = 1;
+ scan_async (ehci, regs);
+ if (ehci->next_uframe != -1)
+ scan_periodic (ehci, regs);
+ ehci->scanning = 0;
-/* called by khubd or root hub init threads */
+ /* the IO watchdog guards against hardware or driver bugs that
+ * misplace IRQs, and should let us run completely without IRQs.
+ * such lossage has been observed on both VT6202 and VT8235.
+ */
+ if (HC_IS_RUNNING (ehci_to_hcd(ehci)->state) &&
+ (ehci->async->qh_next.ptr != NULL ||
+ ehci->periodic_sched != 0))
+ timer_action (ehci, TIMER_IO_WATCHDOG);
+}
-static int ehci_hc_reset (struct usb_hcd *hcd)
+static void ehci_stop (struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
- u32 temp;
- unsigned count = 256/4;
- spin_lock_init (&ehci->lock);
+ ehci_dbg (ehci, "stop\n");
- ehci->caps = hcd->regs;
- ehci->regs = hcd->regs + HC_LENGTH (readl (&ehci->caps->hc_capbase));
- dbg_hcs_params (ehci, "reset");
- dbg_hcc_params (ehci, "reset");
+ /* Turn off port power on all root hub ports. */
+ ehci_port_power (ehci, 0);
- /* cache this readonly data; minimize chip reads */
- ehci->hcs_params = readl (&ehci->caps->hcs_params);
+ /* no more interrupts ... */
+ del_timer_sync (&ehci->watchdog);
-#ifdef CONFIG_PCI
- if (hcd->self.controller->bus == &pci_bus_type) {
- struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
+ spin_lock_irq(&ehci->lock);
+ if (HC_IS_RUNNING (hcd->state))
+ ehci_quiesce (ehci);
- switch (pdev->vendor) {
- case PCI_VENDOR_ID_TDI:
- if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) {
- ehci->is_tdi_rh_tt = 1;
- tdi_reset (ehci);
- }
- break;
- case PCI_VENDOR_ID_AMD:
- /* AMD8111 EHCI doesn't work, according to AMD errata */
- if (pdev->device == 0x7463) {
- ehci_info (ehci, "ignoring AMD8111 (errata)\n");
- return -EIO;
- }
- break;
- case PCI_VENDOR_ID_NVIDIA:
- /* NVidia reports that certain chips don't handle
- * QH, ITD, or SITD addresses above 2GB. (But TD,
- * data buffer, and periodic schedule are normal.)
- */
- switch (pdev->device) {
- case 0x003c: /* MCP04 */
- case 0x005b: /* CK804 */
- case 0x00d8: /* CK8 */
- case 0x00e8: /* CK8S */
- if (pci_set_consistent_dma_mask(pdev,
- DMA_31BIT_MASK) < 0)
- ehci_warn (ehci, "can't enable NVidia "
- "workaround for >2GB RAM\n");
- break;
- }
- break;
- }
+ ehci_reset (ehci);
+ writel (0, &ehci->regs->intr_enable);
+ spin_unlock_irq(&ehci->lock);
- /* optional debug port, normally in the first BAR */
- temp = pci_find_capability (pdev, 0x0a);
- if (temp) {
- pci_read_config_dword(pdev, temp, &temp);
- temp >>= 16;
- if ((temp & (3 << 13)) == (1 << 13)) {
- temp &= 0x1fff;
- ehci->debug = hcd->regs + temp;
- temp = readl (&ehci->debug->control);
- ehci_info (ehci, "debug port %d%s\n",
- HCS_DEBUG_PORT(ehci->hcs_params),
- (temp & DBGP_ENABLED)
- ? " IN USE"
- : "");
- if (!(temp & DBGP_ENABLED))
- ehci->debug = NULL;
- }
- }
+ /* let companion controllers work when we aren't */
+ writel (0, &ehci->regs->configured_flag);
+ unregister_reboot_notifier (&ehci->reboot_notifier);
- temp = HCC_EXT_CAPS (readl (&ehci->caps->hcc_params));
- } else
- temp = 0;
-
- /* EHCI 0.96 and later may have "extended capabilities" */
- while (temp && count--) {
- u32 cap;
-
- pci_read_config_dword (to_pci_dev(hcd->self.controller),
- temp, &cap);
- ehci_dbg (ehci, "capability %04x at %02x\n", cap, temp);
- switch (cap & 0xff) {
- case 1: /* BIOS/SMM/... handoff */
- if (bios_handoff (ehci, temp, cap) != 0)
- return -EOPNOTSUPP;
- break;
- case 0: /* illegal reserved capability */
- ehci_warn (ehci, "illegal capability!\n");
- cap = 0;
- /* FALLTHROUGH */
- default: /* unknown */
- break;
- }
- temp = (cap >> 8) & 0xff;
- }
- if (!count) {
- ehci_err (ehci, "bogus capabilities ... PCI problems!\n");
- return -EIO;
- }
- if (ehci_is_TDI(ehci))
- ehci_reset (ehci);
-#endif
+ remove_debug_files (ehci);
- ehci_port_power (ehci, 0);
+ /* root hub is shut down separately (first, when possible) */
+ spin_lock_irq (&ehci->lock);
+ if (ehci->async)
+ ehci_work (ehci, NULL);
+ spin_unlock_irq (&ehci->lock);
+ ehci_mem_cleanup (ehci);
- /* at least the Genesys GL880S needs fixup here */
- temp = HCS_N_CC(ehci->hcs_params) * HCS_N_PCC(ehci->hcs_params);
- temp &= 0x0f;
- if (temp && HCS_N_PORTS(ehci->hcs_params) > temp) {
- ehci_dbg (ehci, "bogus port configuration: "
- "cc=%d x pcc=%d < ports=%d\n",
- HCS_N_CC(ehci->hcs_params),
- HCS_N_PCC(ehci->hcs_params),
- HCS_N_PORTS(ehci->hcs_params));
-
-#ifdef CONFIG_PCI
- if (hcd->self.controller->bus == &pci_bus_type) {
- struct pci_dev *pdev;
-
- pdev = to_pci_dev(hcd->self.controller);
- switch (pdev->vendor) {
- case 0x17a0: /* GENESYS */
- /* GL880S: should be PORTS=2 */
- temp |= (ehci->hcs_params & ~0xf);
- ehci->hcs_params = temp;
- break;
- case PCI_VENDOR_ID_NVIDIA:
- /* NF4: should be PCC=10 */
- break;
- }
- }
+#ifdef EHCI_STATS
+ ehci_dbg (ehci, "irq normal %ld err %ld reclaim %ld (lost %ld)\n",
+ ehci->stats.normal, ehci->stats.error, ehci->stats.reclaim,
+ ehci->stats.lost_iaa);
+ ehci_dbg (ehci, "complete %ld unlink %ld\n",
+ ehci->stats.complete, ehci->stats.unlink);
#endif
- }
- /* force HC to halt state */
- return ehci_halt (ehci);
+ dbg_status (ehci, "ehci_stop completed", readl (&ehci->regs->status));
}
-static int ehci_start (struct usb_hcd *hcd)
+static int ehci_run (struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 temp;
int retval;
u32 hcc_params;
- u8 sbrn = 0;
int first;
/* skip some things on restart paths */
@@ -551,27 +455,6 @@ static int ehci_start (struct usb_hcd *hcd)
}
writel (ehci->periodic_dma, &ehci->regs->frame_list);
-#ifdef CONFIG_PCI
- if (hcd->self.controller->bus == &pci_bus_type) {
- struct pci_dev *pdev;
- u16 port_wake;
-
- pdev = to_pci_dev(hcd->self.controller);
-
- /* Serial Bus Release Number is at PCI 0x60 offset */
- pci_read_config_byte(pdev, 0x60, &sbrn);
-
- /* port wake capability, reported by boot firmware */
- pci_read_config_word(pdev, 0x62, &port_wake);
- hcd->can_wakeup = (port_wake & 1) != 0;
-
- /* help hc dma work well with cachelines */
- retval = pci_set_mwi(pdev);
- if (retval)
- ehci_dbg(ehci, "unable to enable MWI - not fatal.\n");
- }
-#endif
-
/*
* dedicate a qh for the async ring head, since we couldn't unlink
* a 'real' qh without stopping the async schedule [4.8]. use it
@@ -667,7 +550,7 @@ static int ehci_start (struct usb_hcd *hcd)
temp = HC_VERSION(readl (&ehci->caps->hc_capbase));
ehci_info (ehci,
"USB %x.%x %s, EHCI %x.%02x, driver %s\n",
- ((sbrn & 0xf0)>>4), (sbrn & 0x0f),
+ ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f),
first ? "initialized" : "restarted",
temp >> 8, temp & 0xff, DRIVER_VERSION);
@@ -679,188 +562,6 @@ static int ehci_start (struct usb_hcd *hcd)
return 0;
}
-/* always called by thread; normally rmmod */
-
-static void ehci_stop (struct usb_hcd *hcd)
-{
- struct ehci_hcd *ehci = hcd_to_ehci (hcd);
-
- ehci_dbg (ehci, "stop\n");
-
- /* Turn off port power on all root hub ports. */
- ehci_port_power (ehci, 0);
-
- /* no more interrupts ... */
- del_timer_sync (&ehci->watchdog);
-
- spin_lock_irq(&ehci->lock);
- if (HC_IS_RUNNING (hcd->state))
- ehci_quiesce (ehci);
-
- ehci_reset (ehci);
- writel (0, &ehci->regs->intr_enable);
- spin_unlock_irq(&ehci->lock);
-
- /* let companion controllers work when we aren't */
- writel (0, &ehci->regs->configured_flag);
- unregister_reboot_notifier (&ehci->reboot_notifier);
-
- remove_debug_files (ehci);
-
- /* root hub is shut down separately (first, when possible) */
- spin_lock_irq (&ehci->lock);
- if (ehci->async)
- ehci_work (ehci, NULL);
- spin_unlock_irq (&ehci->lock);
- ehci_mem_cleanup (ehci);
-
-#ifdef EHCI_STATS
- ehci_dbg (ehci, "irq normal %ld err %ld reclaim %ld (lost %ld)\n",
- ehci->stats.normal, ehci->stats.error, ehci->stats.reclaim,
- ehci->stats.lost_iaa);
- ehci_dbg (ehci, "complete %ld unlink %ld\n",
- ehci->stats.complete, ehci->stats.unlink);
-#endif
-
- dbg_status (ehci, "ehci_stop completed", readl (&ehci->regs->status));
-}
-
-static int ehci_get_frame (struct usb_hcd *hcd)
-{
- struct ehci_hcd *ehci = hcd_to_ehci (hcd);
- return (readl (&ehci->regs->frame_index) >> 3) % ehci->periodic_size;
-}
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef CONFIG_PM
-
-/* suspend/resume, section 4.3 */
-
-/* These routines rely on the bus (pci, platform, etc)
- * to handle powerdown and wakeup, and currently also on
- * transceivers that don't need any software attention to set up
- * the right sort of wakeup.
- */
-
-static int ehci_suspend (struct usb_hcd *hcd, pm_message_t message)
-{
- struct ehci_hcd *ehci = hcd_to_ehci (hcd);
-
- if (time_before (jiffies, ehci->next_statechange))
- msleep (100);
-
-#ifdef CONFIG_USB_SUSPEND
- (void) usb_suspend_device (hcd->self.root_hub, message);
-#else
- usb_lock_device (hcd->self.root_hub);
- (void) ehci_hub_suspend (hcd);
- usb_unlock_device (hcd->self.root_hub);
-#endif
-
- // save (PCI) FLADJ in case of Vaux power loss
- // ... we'd only use it to handle clock skew
-
- return 0;
-}
-
-static int ehci_resume (struct usb_hcd *hcd)
-{
- struct ehci_hcd *ehci = hcd_to_ehci (hcd);
- unsigned port;
- struct usb_device *root = hcd->self.root_hub;
- int retval = -EINVAL;
-
- // maybe restore (PCI) FLADJ
-
- if (time_before (jiffies, ehci->next_statechange))
- msleep (100);
-
- /* If any port is suspended (or owned by the companion),
- * we know we can/must resume the HC (and mustn't reset it).
- */
- for (port = HCS_N_PORTS (ehci->hcs_params); port > 0; ) {
- u32 status;
- port--;
- status = readl (&ehci->regs->port_status [port]);
- if (!(status & PORT_POWER))
- continue;
- if (status & (PORT_SUSPEND | PORT_OWNER)) {
- down (&hcd->self.root_hub->serialize);
- retval = ehci_hub_resume (hcd);
- up (&hcd->self.root_hub->serialize);
- break;
- }
- if (!root->children [port])
- continue;
- dbg_port (ehci, __FUNCTION__, port + 1, status);
- usb_set_device_state (root->children[port],
- USB_STATE_NOTATTACHED);
- }
-
- /* Else reset, to cope with power loss or flush-to-storage
- * style "resume" having activated BIOS during reboot.
- */
- if (port == 0) {
- (void) ehci_halt (ehci);
- (void) ehci_reset (ehci);
- (void) ehci_hc_reset (hcd);
-
- /* emptying the schedule aborts any urbs */
- spin_lock_irq (&ehci->lock);
- if (ehci->reclaim)
- ehci->reclaim_ready = 1;
- ehci_work (ehci, NULL);
- spin_unlock_irq (&ehci->lock);
-
- /* restart; khubd will disconnect devices */
- retval = ehci_start (hcd);
-
- /* here we "know" root ports should always stay powered;
- * but some controllers may lose all power.
- */
- ehci_port_power (ehci, 1);
- }
-
- return retval;
-}
-
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * ehci_work is called from some interrupts, timers, and so on.
- * it calls driver completion functions, after dropping ehci->lock.
- */
-static void ehci_work (struct ehci_hcd *ehci, struct pt_regs *regs)
-{
- timer_action_done (ehci, TIMER_IO_WATCHDOG);
- if (ehci->reclaim_ready)
- end_unlink_async (ehci, regs);
-
- /* another CPU may drop ehci->lock during a schedule scan while
- * it reports urb completions. this flag guards against bogus
- * attempts at re-entrant schedule scanning.
- */
- if (ehci->scanning)
- return;
- ehci->scanning = 1;
- scan_async (ehci, regs);
- if (ehci->next_uframe != -1)
- scan_periodic (ehci, regs);
- ehci->scanning = 0;
-
- /* the IO watchdog guards against hardware or driver bugs that
- * misplace IRQs, and should let us run completely without IRQs.
- * such lossage has been observed on both VT6202 and VT8235.
- */
- if (HC_IS_RUNNING (ehci_to_hcd(ehci)->state) &&
- (ehci->async->qh_next.ptr != NULL ||
- ehci->periodic_sched != 0))
- timer_action (ehci, TIMER_IO_WATCHDOG);
-}
-
/*-------------------------------------------------------------------------*/
static irqreturn_t ehci_irq (struct usb_hcd *hcd, struct pt_regs *regs)
@@ -1171,106 +872,24 @@ done:
return;
}
-/*-------------------------------------------------------------------------*/
-
-static const struct hc_driver ehci_driver = {
- .description = hcd_name,
- .product_desc = "EHCI Host Controller",
- .hcd_priv_size = sizeof(struct ehci_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = ehci_irq,
- .flags = HCD_MEMORY | HCD_USB2,
-
- /*
- * basic lifecycle operations
- */
- .reset = ehci_hc_reset,
- .start = ehci_start,
-#ifdef CONFIG_PM
- .suspend = ehci_suspend,
- .resume = ehci_resume,
-#endif
- .stop = ehci_stop,
-
- /*
- * 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,
- .hub_suspend = ehci_hub_suspend,
- .hub_resume = ehci_hub_resume,
-};
+static int ehci_get_frame (struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci (hcd);
+ return (readl (&ehci->regs->frame_index) >> 3) % ehci->periodic_size;
+}
/*-------------------------------------------------------------------------*/
-/* EHCI 1.0 doesn't require PCI */
-
-#ifdef CONFIG_PCI
-
-/* PCI driver selection metadata; PCI hotplugging uses this */
-static const struct pci_device_id pci_ids [] = { {
- /* handle any USB 2.0 EHCI controller */
- PCI_DEVICE_CLASS(((PCI_CLASS_SERIAL_USB << 8) | 0x20), ~0),
- .driver_data = (unsigned long) &ehci_driver,
- },
- { /* end: all zeroes */ }
-};
-MODULE_DEVICE_TABLE (pci, pci_ids);
-
-/* pci driver glue; this is a "new style" PCI driver module */
-static struct pci_driver ehci_pci_driver = {
- .name = (char *) hcd_name,
- .id_table = pci_ids,
-
- .probe = usb_hcd_pci_probe,
- .remove = usb_hcd_pci_remove,
-
-#ifdef CONFIG_PM
- .suspend = usb_hcd_pci_suspend,
- .resume = usb_hcd_pci_resume,
-#endif
-};
-
-#endif /* PCI */
-
-
#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC
MODULE_DESCRIPTION (DRIVER_INFO);
MODULE_AUTHOR (DRIVER_AUTHOR);
MODULE_LICENSE ("GPL");
-static int __init init (void)
-{
- if (usb_disabled())
- return -ENODEV;
-
- pr_debug ("%s: block sizes: qh %Zd qtd %Zd itd %Zd sitd %Zd\n",
- hcd_name,
- sizeof (struct ehci_qh), sizeof (struct ehci_qtd),
- sizeof (struct ehci_itd), sizeof (struct ehci_sitd));
-
- return pci_register_driver (&ehci_pci_driver);
-}
-module_init (init);
+#ifdef CONFIG_PCI
+#include "ehci-pci.c"
+#endif
-static void __exit cleanup (void)
-{
- pci_unregister_driver (&ehci_pci_driver);
-}
-module_exit (cleanup);
+#if !defined(CONFIG_PCI)
+#error "missing bus glue for ehci-hcd"
+#endif
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 18d3f227031..88cb4ada686 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -30,7 +30,7 @@
#ifdef CONFIG_PM
-static int ehci_hub_suspend (struct usb_hcd *hcd)
+static int ehci_bus_suspend (struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
int port;
@@ -83,7 +83,7 @@ static int ehci_hub_suspend (struct usb_hcd *hcd)
/* caller has locked the root hub, and should reset/reinit on error */
-static int ehci_hub_resume (struct usb_hcd *hcd)
+static int ehci_bus_resume (struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 temp;
@@ -159,8 +159,8 @@ static int ehci_hub_resume (struct usb_hcd *hcd)
#else
-#define ehci_hub_suspend NULL
-#define ehci_hub_resume NULL
+#define ehci_bus_suspend NULL
+#define ehci_bus_resume NULL
#endif /* CONFIG_PM */
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
new file mode 100644
index 00000000000..14500885396
--- /dev/null
+++ b/drivers/usb/host/ehci-pci.c
@@ -0,0 +1,415 @@
+/*
+ * EHCI HCD (Host Controller Driver) PCI Bus Glue.
+ *
+ * Copyright (c) 2000-2004 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef CONFIG_PCI
+#error "This file is PCI bus glue. CONFIG_PCI must be defined."
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+/* EHCI 0.96 (and later) section 5.1 says how to kick BIOS/SMM/...
+ * off the controller (maybe it can boot from highspeed USB disks).
+ */
+static int bios_handoff (struct ehci_hcd *ehci, int where, u32 cap)
+{
+ struct pci_dev *pdev = to_pci_dev(ehci_to_hcd(ehci)->self.controller);
+
+ /* always say Linux will own the hardware */
+ pci_write_config_byte(pdev, where + 3, 1);
+
+ /* maybe wait a while for BIOS to respond */
+ if (cap & (1 << 16)) {
+ int msec = 5000;
+
+ do {
+ msleep(10);
+ msec -= 10;
+ pci_read_config_dword(pdev, where, &cap);
+ } while ((cap & (1 << 16)) && msec);
+ if (cap & (1 << 16)) {
+ ehci_err(ehci, "BIOS handoff failed (%d, %08x)\n",
+ where, cap);
+ // some BIOS versions seem buggy...
+ // return 1;
+ ehci_warn (ehci, "continuing after BIOS bug...\n");
+ /* disable all SMIs, and clear "BIOS owns" flag */
+ pci_write_config_dword(pdev, where + 4, 0);
+ pci_write_config_byte(pdev, where + 2, 0);
+ } else
+ ehci_dbg(ehci, "BIOS handoff succeeded\n");
+ }
+ return 0;
+}
+
+/* called by khubd or root hub init threads */
+static int ehci_pci_reset (struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci (hcd);
+ u32 temp;
+ unsigned count = 256/4;
+
+ spin_lock_init (&ehci->lock);
+
+ ehci->caps = hcd->regs;
+ ehci->regs = hcd->regs + HC_LENGTH (readl (&ehci->caps->hc_capbase));
+ dbg_hcs_params (ehci, "reset");
+ dbg_hcc_params (ehci, "reset");
+
+ /* cache this readonly data; minimize chip reads */
+ ehci->hcs_params = readl (&ehci->caps->hcs_params);
+
+ if (hcd->self.controller->bus == &pci_bus_type) {
+ struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
+
+ switch (pdev->vendor) {
+ case PCI_VENDOR_ID_TDI:
+ if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) {
+ ehci->is_tdi_rh_tt = 1;
+ tdi_reset (ehci);
+ }
+ break;
+ case PCI_VENDOR_ID_AMD:
+ /* AMD8111 EHCI doesn't work, according to AMD errata */
+ if (pdev->device == 0x7463) {
+ ehci_info (ehci, "ignoring AMD8111 (errata)\n");
+ return -EIO;
+ }
+ break;
+ case PCI_VENDOR_ID_NVIDIA:
+ /* NVidia reports that certain chips don't handle
+ * QH, ITD, or SITD addresses above 2GB. (But TD,
+ * data buffer, and periodic schedule are normal.)
+ */
+ switch (pdev->device) {
+ case 0x003c: /* MCP04 */
+ case 0x005b: /* CK804 */
+ case 0x00d8: /* CK8 */
+ case 0x00e8: /* CK8S */
+ if (pci_set_consistent_dma_mask(pdev,
+ DMA_31BIT_MASK) < 0)
+ ehci_warn (ehci, "can't enable NVidia "
+ "workaround for >2GB RAM\n");
+ break;
+ }
+ break;
+ }
+
+ /* optional debug port, normally in the first BAR */
+ temp = pci_find_capability (pdev, 0x0a);
+ if (temp) {
+ pci_read_config_dword(pdev, temp, &temp);
+ temp >>= 16;
+ if ((temp & (3 << 13)) == (1 << 13)) {
+ temp &= 0x1fff;
+ ehci->debug = hcd->regs + temp;
+ temp = readl (&ehci->debug->control);
+ ehci_info (ehci, "debug port %d%s\n",
+ HCS_DEBUG_PORT(ehci->hcs_params),
+ (temp & DBGP_ENABLED)
+ ? " IN USE"
+ : "");
+ if (!(temp & DBGP_ENABLED))
+ ehci->debug = NULL;
+ }
+ }
+
+ temp = HCC_EXT_CAPS (readl (&ehci->caps->hcc_params));
+ } else
+ temp = 0;
+
+ /* EHCI 0.96 and later may have "extended capabilities" */
+ while (temp && count--) {
+ u32 cap;
+
+ pci_read_config_dword (to_pci_dev(hcd->self.controller),
+ temp, &cap);
+ ehci_dbg (ehci, "capability %04x at %02x\n", cap, temp);
+ switch (cap & 0xff) {
+ case 1: /* BIOS/SMM/... handoff */
+ if (bios_handoff (ehci, temp, cap) != 0)
+ return -EOPNOTSUPP;
+ break;
+ case 0: /* illegal reserved capability */
+ ehci_warn (ehci, "illegal capability!\n");
+ cap = 0;
+ /* FALLTHROUGH */
+ default: /* unknown */
+ break;
+ }
+ temp = (cap >> 8) & 0xff;
+ }
+ if (!count) {
+ ehci_err (ehci, "bogus capabilities ... PCI problems!\n");
+ return -EIO;
+ }
+ if (ehci_is_TDI(ehci))
+ ehci_reset (ehci);
+
+ ehci_port_power (ehci, 0);
+
+ /* at least the Genesys GL880S needs fixup here */
+ temp = HCS_N_CC(ehci->hcs_params) * HCS_N_PCC(ehci->hcs_params);
+ temp &= 0x0f;
+ if (temp && HCS_N_PORTS(ehci->hcs_params) > temp) {
+ ehci_dbg (ehci, "bogus port configuration: "
+ "cc=%d x pcc=%d < ports=%d\n",
+ HCS_N_CC(ehci->hcs_params),
+ HCS_N_PCC(ehci->hcs_params),
+ HCS_N_PORTS(ehci->hcs_params));
+
+ if (hcd->self.controller->bus == &pci_bus_type) {
+ struct pci_dev *pdev;
+
+ pdev = to_pci_dev(hcd->self.controller);
+ switch (pdev->vendor) {
+ case 0x17a0: /* GENESYS */
+ /* GL880S: should be PORTS=2 */
+ temp |= (ehci->hcs_params & ~0xf);
+ ehci->hcs_params = temp;
+ break;
+ case PCI_VENDOR_ID_NVIDIA:
+ /* NF4: should be PCC=10 */
+ break;
+ }
+ }
+ }
+
+ /* force HC to halt state */
+ return ehci_halt (ehci);
+}
+
+static int ehci_pci_start (struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci (hcd);
+ int result = 0;
+
+ if (hcd->self.controller->bus == &pci_bus_type) {
+ struct pci_dev *pdev;
+ u16 port_wake;
+
+ pdev = to_pci_dev(hcd->self.controller);
+
+ /* Serial Bus Release Number is at PCI 0x60 offset */
+ pci_read_config_byte(pdev, 0x60, &ehci->sbrn);
+
+ /* port wake capability, reported by boot firmware */
+ pci_read_config_word(pdev, 0x62, &port_wake);
+ hcd->can_wakeup = (port_wake & 1) != 0;
+
+ /* help hc dma work well with cachelines */
+ result = pci_set_mwi(pdev);
+ if (result)
+ ehci_dbg(ehci, "unable to enable MWI - not fatal.\n");
+ }
+
+ return ehci_run (hcd);
+}
+
+/* always called by thread; normally rmmod */
+
+static void ehci_pci_stop (struct usb_hcd *hcd)
+{
+ ehci_stop (hcd);
+}
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef CONFIG_PM
+
+/* suspend/resume, section 4.3 */
+
+/* These routines rely on the bus (pci, platform, etc)
+ * to handle powerdown and wakeup, and currently also on
+ * transceivers that don't need any software attention to set up
+ * the right sort of wakeup.
+ */
+
+static int ehci_pci_suspend (struct usb_hcd *hcd, pm_message_t message)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci (hcd);
+
+ if (time_before (jiffies, ehci->next_statechange))
+ msleep (100);
+
+#ifdef CONFIG_USB_SUSPEND
+ (void) usb_suspend_device (hcd->self.root_hub);
+#else
+ usb_lock_device (hcd->self.root_hub);
+ (void) ehci_bus_suspend (hcd);
+ usb_unlock_device (hcd->self.root_hub);
+#endif
+
+ // save (PCI) FLADJ in case of Vaux power loss
+ // ... we'd only use it to handle clock skew
+
+ return 0;
+}
+
+static int ehci_pci_resume (struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci (hcd);
+ unsigned port;
+ struct usb_device *root = hcd->self.root_hub;
+ int retval = -EINVAL;
+
+ // maybe restore (PCI) FLADJ
+
+ if (time_before (jiffies, ehci->next_statechange))
+ msleep (100);
+
+ /* If any port is suspended (or owned by the companion),
+ * we know we can/must resume the HC (and mustn't reset it).
+ */
+ for (port = HCS_N_PORTS (ehci->hcs_params); port > 0; ) {
+ u32 status;
+ port--;
+ status = readl (&ehci->regs->port_status [port]);
+ if (!(status & PORT_POWER))
+ continue;
+ if (status & (PORT_SUSPEND | PORT_OWNER)) {
+ down (&hcd->self.root_hub->serialize);
+ retval = ehci_bus_resume (hcd);
+ up (&hcd->self.root_hub->serialize);
+ break;
+ }
+ if (!root->children [port])
+ continue;
+ dbg_port (ehci, __FUNCTION__, port + 1, status);
+ usb_set_device_state (root->children[port],
+ USB_STATE_NOTATTACHED);
+ }
+
+ /* Else reset, to cope with power loss or flush-to-storage
+ * style "resume" having activated BIOS during reboot.
+ */
+ if (port == 0) {
+ (void) ehci_halt (ehci);
+ (void) ehci_reset (ehci);
+ (void) ehci_pci_reset (hcd);
+
+ /* emptying the schedule aborts any urbs */
+ spin_lock_irq (&ehci->lock);
+ if (ehci->reclaim)
+ ehci->reclaim_ready = 1;
+ ehci_work (ehci, NULL);
+ spin_unlock_irq (&ehci->lock);
+
+ /* restart; khubd will disconnect devices */
+ retval = ehci_run (hcd);
+
+ /* here we "know" root ports should always stay powered;
+ * but some controllers may lose all power.
+ */
+ ehci_port_power (ehci, 1);
+ }
+
+ return retval;
+}
+#endif
+
+static const struct hc_driver ehci_pci_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "EHCI Host Controller",
+ .hcd_priv_size = sizeof(struct ehci_hcd),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = ehci_irq,
+ .flags = HCD_MEMORY | HCD_USB2,
+
+ /*
+ * basic lifecycle operations
+ */
+ .reset = ehci_pci_reset,
+ .start = ehci_pci_start,
+#ifdef CONFIG_PM
+ .suspend = ehci_pci_suspend,
+ .resume = ehci_pci_resume,
+#endif
+ .stop = ehci_pci_stop,
+
+ /*
+ * 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,
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* PCI driver selection metadata; PCI hotplugging uses this */
+static const struct pci_device_id pci_ids [] = { {
+ /* handle any USB 2.0 EHCI controller */
+ PCI_DEVICE_CLASS(((PCI_CLASS_SERIAL_USB << 8) | 0x20), ~0),
+ .driver_data = (unsigned long) &ehci_pci_hc_driver,
+ },
+ { /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE (pci, pci_ids);
+
+/* pci driver glue; this is a "new style" PCI driver module */
+static struct pci_driver ehci_pci_driver = {
+ .name = (char *) hcd_name,
+ .id_table = pci_ids,
+ .owner = THIS_MODULE,
+
+ .probe = usb_hcd_pci_probe,
+ .remove = usb_hcd_pci_remove,
+
+#ifdef CONFIG_PM
+ .suspend = usb_hcd_pci_suspend,
+ .resume = usb_hcd_pci_resume,
+#endif
+};
+
+static int __init ehci_hcd_pci_init (void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ pr_debug ("%s: block sizes: qh %Zd qtd %Zd itd %Zd sitd %Zd\n",
+ hcd_name,
+ sizeof (struct ehci_qh), sizeof (struct ehci_qtd),
+ sizeof (struct ehci_itd), sizeof (struct ehci_sitd));
+
+ return pci_register_driver (&ehci_pci_driver);
+}
+module_init (ehci_hcd_pci_init);
+
+static void __exit ehci_hcd_pci_cleanup (void)
+{
+ pci_unregister_driver (&ehci_pci_driver);
+}
+module_exit (ehci_hcd_pci_cleanup);
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index f34a0516d35..18e257c2bdb 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -97,6 +97,7 @@ struct ehci_hcd { /* one per controller */
#else
# define COUNT(x) do {} while (0)
#endif
+ u8 sbrn; /* packed release number */
};
/* convert between an HCD pointer and the corresponding EHCI_HCD */
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 2548d94fcd7..f9c3f5b8dd1 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -70,6 +70,7 @@
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/usb_isp116x.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -638,7 +639,7 @@ static irqreturn_t isp116x_irq(struct usb_hcd *hcd, struct pt_regs *regs)
+ msecs_to_jiffies(20) + 1);
if (intstat & HCINT_RD) {
DBG("---- remote wakeup\n");
- schedule_work(&isp116x->rh_resume);
+ usb_hcd_resume_root_hub(hcd);
ret = IRQ_HANDLED;
}
irqstat &= ~HCuPINT_OPR;
@@ -1160,7 +1161,7 @@ static int isp116x_hub_control(struct usb_hcd *hcd,
#ifdef CONFIG_PM
-static int isp116x_hub_suspend(struct usb_hcd *hcd)
+static int isp116x_bus_suspend(struct usb_hcd *hcd)
{
struct isp116x *isp116x = hcd_to_isp116x(hcd);
unsigned long flags;
@@ -1200,7 +1201,7 @@ static int isp116x_hub_suspend(struct usb_hcd *hcd)
return ret;
}
-static int isp116x_hub_resume(struct usb_hcd *hcd)
+static int isp116x_bus_resume(struct usb_hcd *hcd)
{
struct isp116x *isp116x = hcd_to_isp116x(hcd);
u32 val;
@@ -1263,21 +1264,11 @@ static int isp116x_hub_resume(struct usb_hcd *hcd)
return 0;
}
-static void isp116x_rh_resume(void *_hcd)
-{
- struct usb_hcd *hcd = _hcd;
-
- usb_resume_device(hcd->self.root_hub);
-}
#else
-#define isp116x_hub_suspend NULL
-#define isp116x_hub_resume NULL
-
-static void isp116x_rh_resume(void *_hcd)
-{
-}
+#define isp116x_bus_suspend NULL
+#define isp116x_bus_resume NULL
#endif
@@ -1636,8 +1627,8 @@ static struct hc_driver isp116x_hc_driver = {
.hub_status_data = isp116x_hub_status_data,
.hub_control = isp116x_hub_control,
- .hub_suspend = isp116x_hub_suspend,
- .hub_resume = isp116x_hub_resume,
+ .bus_suspend = isp116x_bus_suspend,
+ .bus_resume = isp116x_bus_resume,
};
/*----------------------------------------------------------------*/
@@ -1732,7 +1723,6 @@ static int __init isp116x_probe(struct device *dev)
isp116x->addr_reg = addr_reg;
spin_lock_init(&isp116x->lock);
INIT_LIST_HEAD(&isp116x->async);
- INIT_WORK(&isp116x->rh_resume, isp116x_rh_resume, hcd);
isp116x->board = dev->platform_data;
if (!isp116x->board) {
@@ -1774,22 +1764,13 @@ static int __init isp116x_probe(struct device *dev)
/*
Suspend of platform device
*/
-static int isp116x_suspend(struct device *dev, pm_message_t state, u32 phase)
+static int isp116x_suspend(struct device *dev, pm_message_t state)
{
int ret = 0;
- struct usb_hcd *hcd = dev_get_drvdata(dev);
- VDBG("%s: state %x, phase %x\n", __func__, state, phase);
+ VDBG("%s: state %x\n", __func__, state);
- if (phase != SUSPEND_DISABLE && phase != SUSPEND_POWER_DOWN)
- return 0;
-
- ret = usb_suspend_device(hcd->self.root_hub, state);
- if (!ret) {
- dev->power.power_state = state;
- INFO("%s suspended\n", hcd_name);
- } else
- ERR("%s suspend failed\n", hcd_name);
+ dev->power.power_state = state;
return ret;
}
@@ -1797,21 +1778,14 @@ static int isp116x_suspend(struct device *dev, pm_message_t state, u32 phase)
/*
Resume platform device
*/
-static int isp116x_resume(struct device *dev, u32 phase)
+static int isp116x_resume(struct device *dev)
{
int ret = 0;
- struct usb_hcd *hcd = dev_get_drvdata(dev);
- VDBG("%s: state %x, phase %x\n", __func__, dev->power.power_state,
- phase);
- if (phase != RESUME_POWER_ON)
- return 0;
+ VDBG("%s: state %x\n", __func__, dev->power.power_state);
+
+ dev->power.power_state = PMSG_ON;
- ret = usb_resume_device(hcd->self.root_hub);
- if (!ret) {
- dev->power.power_state = PMSG_ON;
- VDBG("%s resumed\n", (char *)hcd_name);
- }
return ret;
}
diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h
index 58873470dcf..c6fec96785f 100644
--- a/drivers/usb/host/isp116x.h
+++ b/drivers/usb/host/isp116x.h
@@ -253,7 +253,6 @@ static const int cc_to_error[16] = {
struct isp116x {
spinlock_t lock;
- struct work_struct rh_resume;
void __iomem *addr_reg;
void __iomem *data_reg;
diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c
index 3981bf15c8c..f0c78cf14b6 100644
--- a/drivers/usb/host/ohci-au1xxx.c
+++ b/drivers/usb/host/ohci-au1xxx.c
@@ -18,6 +18,8 @@
* This file is licenced under the GPL.
*/
+#include <linux/platform_device.h>
+
#include <asm/mach-au1x00/au1000.h>
#define USBH_ENABLE_BE (1<<0)
@@ -214,6 +216,11 @@ static const struct hc_driver ohci_au1xxx_hc_driver = {
*/
.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,
};
/*-------------------------------------------------------------------------*/
@@ -259,6 +266,7 @@ static int ohci_hcd_au1xxx_drv_resume(struct device *dev)
static struct device_driver ohci_hcd_au1xxx_driver = {
.name = "au1xxx-ohci",
+ .owner = THIS_MODULE,
.bus = &platform_bus_type,
.probe = ohci_hcd_au1xxx_drv_probe,
.remove = ohci_hcd_au1xxx_drv_remove,
diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c
index 7924c74f958..7bfffcbbd22 100644
--- a/drivers/usb/host/ohci-dbg.c
+++ b/drivers/usb/host/ohci-dbg.c
@@ -193,10 +193,6 @@ ohci_dump_status (struct ohci_hcd *controller, char **next, unsigned *size)
maybe_print_eds (controller, "donehead",
ohci_readl (controller, &regs->donehead), next, size);
-
- /* broken fminterval means traffic won't flow! */
- ohci_dbg (controller, "fminterval %08x\n",
- ohci_readl (controller, &regs->fminterval));
}
#define dbg_port_sw(hc,num,value,next,size) \
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index f8da8c7af7c..5c0c6c8a7a8 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -723,7 +723,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd, struct pt_regs *ptregs)
ohci_vdbg (ohci, "resume detect\n");
ohci_writel (ohci, OHCI_INTR_RD, &regs->intrstatus);
if (hcd->state != HC_STATE_QUIESCING)
- schedule_work(&ohci->rh_resume);
+ usb_hcd_resume_root_hub(hcd);
}
if (ints & OHCI_INTR_WDH) {
@@ -791,7 +791,7 @@ static void ohci_stop (struct usb_hcd *hcd)
/* must not be called from interrupt context */
-#if defined(CONFIG_USB_SUSPEND) || defined(CONFIG_PM)
+#ifdef CONFIG_PM
static int ohci_restart (struct ohci_hcd *ohci)
{
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index ce7b28da7a1..e01e77bc324 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -36,7 +36,7 @@
/*-------------------------------------------------------------------------*/
-#if defined(CONFIG_USB_SUSPEND) || defined(CONFIG_PM)
+#ifdef CONFIG_PM
#define OHCI_SCHED_ENABLES \
(OHCI_CTRL_CLE|OHCI_CTRL_BLE|OHCI_CTRL_PLE|OHCI_CTRL_IE)
@@ -45,7 +45,7 @@ static void dl_done_list (struct ohci_hcd *, struct pt_regs *);
static void finish_unlinks (struct ohci_hcd *, u16 , struct pt_regs *);
static int ohci_restart (struct ohci_hcd *ohci);
-static int ohci_hub_suspend (struct usb_hcd *hcd)
+static int ohci_bus_suspend (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int status = 0;
@@ -73,7 +73,6 @@ static int ohci_hub_suspend (struct usb_hcd *hcd)
ohci_dbg (ohci, "suspend root hub\n");
/* First stop any processing */
- hcd->state = HC_STATE_QUIESCING;
if (ohci->hc_control & OHCI_SCHED_ENABLES) {
int limit;
@@ -108,7 +107,9 @@ static int ohci_hub_suspend (struct usb_hcd *hcd)
else
ohci->hc_control &= ~OHCI_CTRL_RWE;
- /* Suspend hub */
+ /* Suspend hub ... this is the "global (to this bus) suspend" mode,
+ * which doesn't imply ports will first be individually suspended.
+ */
ohci->hc_control &= ~OHCI_CTRL_HCFS;
ohci->hc_control |= OHCI_USB_SUSPEND;
ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
@@ -118,8 +119,9 @@ static int ohci_hub_suspend (struct usb_hcd *hcd)
ohci->next_statechange = jiffies + msecs_to_jiffies (5);
done:
+ /* external suspend vs self autosuspend ... same effect */
if (status == 0)
- hcd->state = HC_STATE_SUSPENDED;
+ usb_hcd_suspend_root_hub(hcd);
spin_unlock_irqrestore (&ohci->lock, flags);
return status;
}
@@ -133,7 +135,7 @@ static inline struct ed *find_head (struct ed *ed)
}
/* caller has locked the root hub */
-static int ohci_hub_resume (struct usb_hcd *hcd)
+static int ohci_bus_resume (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
u32 temp, enables;
@@ -146,7 +148,7 @@ static int ohci_hub_resume (struct usb_hcd *hcd)
ohci->hc_control = ohci_readl (ohci, &ohci->regs->control);
if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
- /* this can happen after suspend-to-disk */
+ /* this can happen after resuming a swsusp snapshot */
if (hcd->state == HC_STATE_RESUMING) {
ohci_dbg (ohci, "BIOS/SMM active, control %03x\n",
ohci->hc_control);
@@ -169,11 +171,12 @@ static int ohci_hub_resume (struct usb_hcd *hcd)
ohci_info (ohci, "wakeup\n");
break;
case OHCI_USB_OPER:
- ohci_dbg (ohci, "already resumed\n");
- status = 0;
+ /* this can happen after resuming a swsusp snapshot */
+ ohci_dbg (ohci, "snapshot resume? reinit\n");
+ status = -EBUSY;
break;
default: /* RESET, we lost power */
- ohci_dbg (ohci, "root hub hardware reset\n");
+ ohci_dbg (ohci, "lost power\n");
status = -EBUSY;
}
spin_unlock_irq (&ohci->lock);
@@ -198,8 +201,7 @@ static int ohci_hub_resume (struct usb_hcd *hcd)
}
/* Some controllers (lucent erratum) need extra-long delays */
- hcd->state = HC_STATE_RESUMING;
- mdelay (20 /* usb 11.5.1.10 */ + 15);
+ msleep (20 /* usb 11.5.1.10 */ + 12 /* 32 msec counter */ + 1);
temp = ohci_readl (ohci, &ohci->regs->control);
temp &= OHCI_CTRL_HCFS;
@@ -273,28 +275,10 @@ static int ohci_hub_resume (struct usb_hcd *hcd)
(void) ohci_readl (ohci, &ohci->regs->control);
}
- hcd->state = HC_STATE_RUNNING;
return 0;
}
-static void ohci_rh_resume (void *_hcd)
-{
- struct usb_hcd *hcd = _hcd;
-
- usb_lock_device (hcd->self.root_hub);
- (void) ohci_hub_resume (hcd);
- usb_unlock_device (hcd->self.root_hub);
-}
-
-#else
-
-static void ohci_rh_resume (void *_hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci (_hcd);
- ohci_dbg(ohci, "rh_resume ??\n");
-}
-
-#endif /* CONFIG_USB_SUSPEND || CONFIG_PM */
+#endif /* CONFIG_PM */
/*-------------------------------------------------------------------------*/
@@ -367,7 +351,6 @@ done:
#ifdef CONFIG_PM
/* save power by suspending idle root hubs;
* INTR_RD wakes us when there's work
- * NOTE: if we can do this, we don't need a root hub timer!
*/
if (can_suspend
&& !changed
@@ -379,8 +362,7 @@ done:
&& usb_trylock_device (hcd->self.root_hub)
) {
ohci_vdbg (ohci, "autosuspend\n");
- (void) ohci_hub_suspend (hcd);
- hcd->state = HC_STATE_RUNNING;
+ (void) ohci_bus_suspend (hcd);
usb_unlock_device (hcd->self.root_hub);
}
#endif
@@ -554,7 +536,7 @@ static int ohci_hub_control (
temp = RH_PS_POCI;
if ((ohci->hc_control & OHCI_CTRL_HCFS)
!= OHCI_USB_OPER)
- schedule_work (&ohci->rh_resume);
+ usb_hcd_resume_root_hub(hcd);
break;
case USB_PORT_FEAT_C_SUSPEND:
temp = RH_PS_PSSC;
diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c
index 859aca7be75..336c766c6e2 100644
--- a/drivers/usb/host/ohci-lh7a404.c
+++ b/drivers/usb/host/ohci-lh7a404.c
@@ -16,6 +16,8 @@
* This file is licenced under the GPL.
*/
+#include <linux/platform_device.h>
+
#include <asm/hardware.h>
@@ -193,6 +195,11 @@ static const struct hc_driver ohci_lh7a404_hc_driver = {
*/
.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,
};
/*-------------------------------------------------------------------------*/
@@ -239,6 +246,7 @@ static int ohci_hcd_lh7a404_drv_resume(struct device *dev)
static struct device_driver ohci_hcd_lh7a404_driver = {
.name = "lh7a404-ohci",
+ .owner = THIS_MODULE,
.bus = &platform_bus_type,
.probe = ohci_hcd_lh7a404_drv_probe,
.remove = ohci_hcd_lh7a404_drv_remove,
diff --git a/drivers/usb/host/ohci-mem.c b/drivers/usb/host/ohci-mem.c
index 9fb83dfb1eb..bfbe328a478 100644
--- a/drivers/usb/host/ohci-mem.c
+++ b/drivers/usb/host/ohci-mem.c
@@ -28,7 +28,6 @@ static void ohci_hcd_init (struct ohci_hcd *ohci)
ohci->next_statechange = jiffies;
spin_lock_init (&ohci->lock);
INIT_LIST_HEAD (&ohci->pending);
- INIT_WORK (&ohci->rh_resume, ohci_rh_resume, ohci_to_hcd(ohci));
ohci->reboot_notifier.notifier_call = ohci_reboot;
}
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index d8f3ba7ad52..e46cc540cf4 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -14,6 +14,10 @@
* This file is licenced under the GPL.
*/
+#include <linux/signal.h> /* SA_INTERRUPT */
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/mach-types.h>
@@ -420,9 +424,9 @@ static const struct hc_driver ohci_omap_hc_driver = {
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
-#ifdef CONFIG_USB_SUSPEND
- .hub_suspend = ohci_hub_suspend,
- .hub_resume = ohci_hub_resume,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
@@ -455,50 +459,32 @@ static int ohci_hcd_omap_drv_remove(struct device *dev)
#ifdef CONFIG_PM
-static int ohci_omap_suspend(struct device *dev, pm_message_t message, u32 level)
+static int ohci_omap_suspend(struct device *dev, pm_message_t message)
{
struct ohci_hcd *ohci = hcd_to_ohci(dev_get_drvdata(dev));
- int status = -EINVAL;
-
- if (level != SUSPEND_POWER_DOWN)
- return 0;
-
- down(&ohci_to_hcd(ohci)->self.root_hub->serialize);
- status = ohci_hub_suspend(ohci_to_hcd(ohci));
- if (status == 0) {
- omap_ohci_clock_power(0);
- ohci_to_hcd(ohci)->self.root_hub->state =
- USB_STATE_SUSPENDED;
- ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
- dev->power.power_state = PMSG_SUSPEND;
- }
- up(&ohci_to_hcd(ohci)->self.root_hub->serialize);
- return status;
+
+ if (time_before(jiffies, ohci->next_statechange))
+ msleep(5);
+ ohci->next_statechange = jiffies;
+
+ omap_ohci_clock_power(0);
+ ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
+ dev->power.power_state = PMSG_SUSPEND;
+ return 0;
}
-static int ohci_omap_resume(struct device *dev, u32 level)
+static int ohci_omap_resume(struct device *dev)
{
struct ohci_hcd *ohci = hcd_to_ohci(dev_get_drvdata(dev));
- int status = 0;
-
- if (level != RESUME_POWER_ON)
- return 0;
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
+
omap_ohci_clock_power(1);
-#ifdef CONFIG_USB_SUSPEND
- /* get extra cleanup even if remote wakeup isn't in use */
- status = usb_resume_device(ohci_to_hcd(ohci)->self.root_hub);
-#else
- down(&ohci_to_hcd(ohci)->self.root_hub->serialize);
- status = ohci_hub_resume(ohci_to_hcd(ohci));
- up(&ohci_to_hcd(ohci)->self.root_hub->serialize);
-#endif
- if (status == 0)
- dev->power.power_state = PMSG_ON;
- return status;
+ dev->power.power_state = PMSG_ON;
+ usb_hcd_resume_root_hub(dev_get_drvdata(dev));
+ return 0;
}
#endif
@@ -510,6 +496,7 @@ static int ohci_omap_resume(struct device *dev, u32 level)
*/
static struct device_driver ohci_hcd_omap_driver = {
.name = "ohci",
+ .owner = THIS_MODULE,
.bus = &platform_bus_type,
.probe = ohci_hcd_omap_drv_probe,
.remove = ohci_hcd_omap_drv_remove,
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index eede6be098d..7ce1d9ef028 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -14,6 +14,8 @@
* This file is licenced under the GPL.
*/
+#include <linux/jiffies.h>
+
#ifdef CONFIG_PPC_PMAC
#include <asm/machdep.h>
#include <asm/pmac_feature.h>
@@ -112,23 +114,13 @@ ohci_pci_start (struct usb_hcd *hcd)
static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message)
{
- struct ohci_hcd *ohci = hcd_to_ohci (hcd);
-
- /* suspend root hub, hoping it keeps power during suspend */
- if (time_before (jiffies, ohci->next_statechange))
- msleep (100);
-
-#ifdef CONFIG_USB_SUSPEND
- (void) usb_suspend_device (hcd->self.root_hub, message);
-#else
- usb_lock_device (hcd->self.root_hub);
- (void) ohci_hub_suspend (hcd);
- usb_unlock_device (hcd->self.root_hub);
-#endif
+ /* root hub was already suspended */
- /* let things settle down a bit */
- msleep (100);
-
+ /* FIXME these PMAC things get called in the wrong places. ASIC
+ * clocks should be turned off AFTER entering D3, and on BEFORE
+ * trying to enter D0. Evidently the PCI layer doesn't currently
+ * provide the right sort of platform hooks for this ...
+ */
#ifdef CONFIG_PPC_PMAC
if (_machine == _MACH_Pmac) {
struct device_node *of_node;
@@ -145,9 +137,6 @@ static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message)
static int ohci_pci_resume (struct usb_hcd *hcd)
{
- struct ohci_hcd *ohci = hcd_to_ohci (hcd);
- int retval = 0;
-
#ifdef CONFIG_PPC_PMAC
if (_machine == _MACH_Pmac) {
struct device_node *of_node;
@@ -159,19 +148,8 @@ static int ohci_pci_resume (struct usb_hcd *hcd)
}
#endif /* CONFIG_PPC_PMAC */
- /* resume root hub */
- if (time_before (jiffies, ohci->next_statechange))
- msleep (100);
-#ifdef CONFIG_USB_SUSPEND
- /* get extra cleanup even if remote wakeup isn't in use */
- retval = usb_resume_device (hcd->self.root_hub);
-#else
- usb_lock_device (hcd->self.root_hub);
- retval = ohci_hub_resume (hcd);
- usb_unlock_device (hcd->self.root_hub);
-#endif
-
- return retval;
+ usb_hcd_resume_root_hub(hcd);
+ return 0;
}
#endif /* CONFIG_PM */
@@ -218,9 +196,9 @@ static const struct hc_driver ohci_pci_hc_driver = {
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
-#ifdef CONFIG_USB_SUSPEND
- .hub_suspend = ohci_hub_suspend,
- .hub_resume = ohci_hub_resume,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
@@ -240,6 +218,7 @@ MODULE_DEVICE_TABLE (pci, pci_ids);
static struct pci_driver ohci_pci_driver = {
.name = (char *) hcd_name,
.id_table = pci_ids,
+ .owner = THIS_MODULE,
.probe = usb_hcd_pci_probe,
.remove = usb_hcd_pci_remove,
diff --git a/drivers/usb/host/ohci-ppc-soc.c b/drivers/usb/host/ohci-ppc-soc.c
index 25153336302..92cf6f4a137 100644
--- a/drivers/usb/host/ohci-ppc-soc.c
+++ b/drivers/usb/host/ohci-ppc-soc.c
@@ -14,6 +14,8 @@
* This file is licenced under the GPL.
*/
+#include <linux/platform_device.h>
+
/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */
@@ -163,9 +165,9 @@ static const struct hc_driver ohci_ppc_soc_hc_driver = {
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
-#ifdef CONFIG_USB_SUSPEND
- .hub_suspend = ohci_hub_suspend,
- .hub_resume = ohci_hub_resume,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
@@ -193,10 +195,11 @@ static int ohci_hcd_ppc_soc_drv_remove(struct device *dev)
static struct device_driver ohci_hcd_ppc_soc_driver = {
.name = "ppc-soc-ohci",
+ .owner = THIS_MODULE,
.bus = &platform_bus_type,
.probe = ohci_hcd_ppc_soc_drv_probe,
.remove = ohci_hcd_ppc_soc_drv_remove,
-#if defined(CONFIG_USB_SUSPEND) || defined(CONFIG_PM)
+#ifdef CONFIG_PM
/*.suspend = ohci_hcd_ppc_soc_drv_suspend,*/
/*.resume = ohci_hcd_ppc_soc_drv_resume,*/
#endif
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 2fdb262d472..59e20568e8f 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -20,6 +20,9 @@
*/
#include <linux/device.h>
+#include <linux/signal.h>
+#include <linux/platform_device.h>
+
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/arch/pxa-regs.h>
@@ -278,10 +281,11 @@ static const struct hc_driver ohci_pxa27x_hc_driver = {
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
-#ifdef CONFIG_USB_SUSPEND
- .hub_suspend = ohci_hub_suspend,
- .hub_resume = ohci_hub_resume,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
+ .start_port_reset = ohci_start_port_reset,
};
/*-------------------------------------------------------------------------*/
@@ -309,7 +313,7 @@ static int ohci_hcd_pxa27x_drv_remove(struct device *dev)
return 0;
}
-static int ohci_hcd_pxa27x_drv_suspend(struct device *dev, pm_message_t state, u32 level)
+static int ohci_hcd_pxa27x_drv_suspend(struct device *dev, pm_message_t state)
{
// struct platform_device *pdev = to_platform_device(dev);
// struct usb_hcd *hcd = dev_get_drvdata(dev);
@@ -318,7 +322,7 @@ static int ohci_hcd_pxa27x_drv_suspend(struct device *dev, pm_message_t state, u
return 0;
}
-static int ohci_hcd_pxa27x_drv_resume(struct device *dev, u32 level)
+static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
{
// struct platform_device *pdev = to_platform_device(dev);
// struct usb_hcd *hcd = dev_get_drvdata(dev);
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index da7d5478f74..ee1fc605b40 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -19,6 +19,8 @@
* This file is licenced under the GPL.
*/
+#include <linux/platform_device.h>
+
#include <asm/hardware.h>
#include <asm/hardware/clock.h>
#include <asm/arch/usb-control.h>
@@ -448,11 +450,11 @@ static const struct hc_driver ohci_s3c2410_hc_driver = {
*/
.hub_status_data = ohci_s3c2410_hub_status_data,
.hub_control = ohci_s3c2410_hub_control,
-
-#if defined(CONFIG_USB_SUSPEND) && 0
- .hub_suspend = ohci_hub_suspend,
- .hub_resume = ohci_hub_resume,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
+ .start_port_reset = ohci_start_port_reset,
};
/* device driver */
@@ -474,6 +476,7 @@ static int ohci_hcd_s3c2410_drv_remove(struct device *dev)
static struct device_driver ohci_hcd_s3c2410_driver = {
.name = "s3c2410-ohci",
+ .owner = THIS_MODULE,
.bus = &platform_bus_type,
.probe = ohci_hcd_s3c2410_drv_probe,
.remove = ohci_hcd_s3c2410_drv_remove,
diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c
index 814d2be4ee7..fb3221ebbb2 100644
--- a/drivers/usb/host/ohci-sa1111.c
+++ b/drivers/usb/host/ohci-sa1111.c
@@ -235,10 +235,11 @@ static const struct hc_driver ohci_sa1111_hc_driver = {
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
-#ifdef CONFIG_USB_SUSPEND
- .hub_suspend = ohci_hub_suspend,
- .hub_resume = ohci_hub_resume,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
#endif
+ .start_port_reset = ohci_start_port_reset,
};
/*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
index 8a9b9d9209e..caacf14371f 100644
--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -389,7 +389,6 @@ struct ohci_hcd {
unsigned long next_statechange; /* suspend/resume */
u32 fminterval; /* saved register */
- struct work_struct rh_resume;
struct notifier_block reboot_notifier;
unsigned long flags; /* for HC bugs */
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
new file mode 100644
index 00000000000..e46528c825b
--- /dev/null
+++ b/drivers/usb/host/pci-quirks.c
@@ -0,0 +1,319 @@
+/*
+ * This file contains code to reset and initialize USB host controllers.
+ * Some of it includes work-arounds for PCI hardware and BIOS quirks.
+ * It may need to run early during booting -- before USB would normally
+ * initialize -- to ensure that Linux doesn't use any legacy modes.
+ *
+ * Copyright (c) 1999 Martin Mares <mj@ucw.cz>
+ * (and others)
+ */
+
+#include <linux/config.h>
+#ifdef CONFIG_USB_DEBUG
+#define DEBUG
+#else
+#undef DEBUG
+#endif
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/acpi.h>
+
+
+#define UHCI_USBLEGSUP 0xc0 /* legacy support */
+#define UHCI_USBCMD 0 /* command register */
+#define UHCI_USBINTR 4 /* interrupt register */
+#define UHCI_USBLEGSUP_RWC 0x8f00 /* the R/WC bits */
+#define UHCI_USBLEGSUP_RO 0x5040 /* R/O and reserved bits */
+#define UHCI_USBCMD_RUN 0x0001 /* RUN/STOP bit */
+#define UHCI_USBCMD_HCRESET 0x0002 /* Host Controller reset */
+#define UHCI_USBCMD_EGSM 0x0008 /* Global Suspend Mode */
+#define UHCI_USBCMD_CONFIGURE 0x0040 /* Config Flag */
+#define UHCI_USBINTR_RESUME 0x0002 /* Resume interrupt enable */
+
+#define OHCI_CONTROL 0x04
+#define OHCI_CMDSTATUS 0x08
+#define OHCI_INTRSTATUS 0x0c
+#define OHCI_INTRENABLE 0x10
+#define OHCI_INTRDISABLE 0x14
+#define OHCI_OCR (1 << 3) /* ownership change request */
+#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */
+#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */
+#define OHCI_INTR_OC (1 << 30) /* ownership change */
+
+#define EHCI_HCC_PARAMS 0x08 /* extended capabilities */
+#define EHCI_USBCMD 0 /* command register */
+#define EHCI_USBCMD_RUN (1 << 0) /* RUN/STOP bit */
+#define EHCI_USBSTS 4 /* status register */
+#define EHCI_USBSTS_HALTED (1 << 12) /* HCHalted bit */
+#define EHCI_USBINTR 8 /* interrupt register */
+#define EHCI_USBLEGSUP 0 /* legacy support register */
+#define EHCI_USBLEGSUP_BIOS (1 << 16) /* BIOS semaphore */
+#define EHCI_USBLEGSUP_OS (1 << 24) /* OS semaphore */
+#define EHCI_USBLEGCTLSTS 4 /* legacy control/status */
+#define EHCI_USBLEGCTLSTS_SOOE (1 << 13) /* SMI on ownership change */
+
+
+/*
+ * Make sure the controller is completely inactive, unable to
+ * generate interrupts or do DMA.
+ */
+void uhci_reset_hc(struct pci_dev *pdev, unsigned long base)
+{
+ /* Turn off PIRQ enable and SMI enable. (This also turns off the
+ * BIOS's USB Legacy Support.) Turn off all the R/WC bits too.
+ */
+ pci_write_config_word(pdev, UHCI_USBLEGSUP, UHCI_USBLEGSUP_RWC);
+
+ /* Reset the HC - this will force us to get a
+ * new notification of any already connected
+ * ports due to the virtual disconnect that it
+ * implies.
+ */
+ outw(UHCI_USBCMD_HCRESET, base + UHCI_USBCMD);
+ mb();
+ udelay(5);
+ if (inw(base + UHCI_USBCMD) & UHCI_USBCMD_HCRESET)
+ dev_warn(&pdev->dev, "HCRESET not completed yet!\n");
+
+ /* Just to be safe, disable interrupt requests and
+ * make sure the controller is stopped.
+ */
+ outw(0, base + UHCI_USBINTR);
+ outw(0, base + UHCI_USBCMD);
+}
+EXPORT_SYMBOL_GPL(uhci_reset_hc);
+
+/*
+ * Initialize a controller that was newly discovered or has just been
+ * resumed. In either case we can't be sure of its previous state.
+ *
+ * Returns: 1 if the controller was reset, 0 otherwise.
+ */
+int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base)
+{
+ u16 legsup;
+ unsigned int cmd, intr;
+
+ /*
+ * When restarting a suspended controller, we expect all the
+ * settings to be the same as we left them:
+ *
+ * PIRQ and SMI disabled, no R/W bits set in USBLEGSUP;
+ * Controller is stopped and configured with EGSM set;
+ * No interrupts enabled except possibly Resume Detect.
+ *
+ * If any of these conditions are violated we do a complete reset.
+ */
+ pci_read_config_word(pdev, UHCI_USBLEGSUP, &legsup);
+ if (legsup & ~(UHCI_USBLEGSUP_RO | UHCI_USBLEGSUP_RWC)) {
+ dev_dbg(&pdev->dev, "%s: legsup = 0x%04x\n",
+ __FUNCTION__, legsup);
+ goto reset_needed;
+ }
+
+ cmd = inw(base + UHCI_USBCMD);
+ if ((cmd & UHCI_USBCMD_RUN) || !(cmd & UHCI_USBCMD_CONFIGURE) ||
+ !(cmd & UHCI_USBCMD_EGSM)) {
+ dev_dbg(&pdev->dev, "%s: cmd = 0x%04x\n",
+ __FUNCTION__, cmd);
+ goto reset_needed;
+ }
+
+ intr = inw(base + UHCI_USBINTR);
+ if (intr & (~UHCI_USBINTR_RESUME)) {
+ dev_dbg(&pdev->dev, "%s: intr = 0x%04x\n",
+ __FUNCTION__, intr);
+ goto reset_needed;
+ }
+ return 0;
+
+reset_needed:
+ dev_dbg(&pdev->dev, "Performing full reset\n");
+ uhci_reset_hc(pdev, base);
+ return 1;
+}
+EXPORT_SYMBOL_GPL(uhci_check_and_reset_hc);
+
+static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask)
+{
+ u16 cmd;
+ return !pci_read_config_word(pdev, PCI_COMMAND, &cmd) && (cmd & mask);
+}
+
+#define pio_enabled(dev) io_type_enabled(dev, PCI_COMMAND_IO)
+#define mmio_enabled(dev) io_type_enabled(dev, PCI_COMMAND_MEMORY)
+
+static void __devinit quirk_usb_handoff_uhci(struct pci_dev *pdev)
+{
+ unsigned long base = 0;
+ int i;
+
+ if (!pio_enabled(pdev))
+ return;
+
+ for (i = 0; i < PCI_ROM_RESOURCE; i++)
+ if ((pci_resource_flags(pdev, i) & IORESOURCE_IO)) {
+ base = pci_resource_start(pdev, i);
+ break;
+ }
+
+ if (base)
+ uhci_check_and_reset_hc(pdev, base);
+}
+
+static int __devinit mmio_resource_enabled(struct pci_dev *pdev, int idx)
+{
+ return pci_resource_start(pdev, idx) && mmio_enabled(pdev);
+}
+
+static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev)
+{
+ void __iomem *base;
+ int wait_time;
+ u32 control;
+
+ if (!mmio_resource_enabled(pdev, 0))
+ return;
+
+ base = ioremap_nocache(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+ if (base == NULL) return;
+
+/* On PA-RISC, PDC can leave IR set incorrectly; ignore it there. */
+#ifndef __hppa__
+ control = readl(base + OHCI_CONTROL);
+ if (control & OHCI_CTRL_IR) {
+ wait_time = 500; /* arbitrary; 5 seconds */
+ writel(OHCI_INTR_OC, base + OHCI_INTRENABLE);
+ writel(OHCI_OCR, base + OHCI_CMDSTATUS);
+ while (wait_time > 0 &&
+ readl(base + OHCI_CONTROL) & OHCI_CTRL_IR) {
+ wait_time -= 10;
+ msleep(10);
+ }
+ if (wait_time <= 0)
+ printk(KERN_WARNING "%s %s: early BIOS handoff "
+ "failed (BIOS bug ?)\n",
+ pdev->dev.bus_id, "OHCI");
+
+ /* reset controller, preserving RWC */
+ writel(control & OHCI_CTRL_RWC, base + OHCI_CONTROL);
+ }
+#endif
+
+ /*
+ * disable interrupts
+ */
+ writel(~(u32)0, base + OHCI_INTRDISABLE);
+ writel(~(u32)0, base + OHCI_INTRSTATUS);
+
+ iounmap(base);
+}
+
+static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
+{
+ int wait_time, delta;
+ void __iomem *base, *op_reg_base;
+ u32 hcc_params, val, temp;
+ u8 cap_length;
+
+ if (!mmio_resource_enabled(pdev, 0))
+ return;
+
+ base = ioremap_nocache(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+ if (base == NULL) return;
+
+ cap_length = readb(base);
+ op_reg_base = base + cap_length;
+ hcc_params = readl(base + EHCI_HCC_PARAMS);
+ hcc_params = (hcc_params >> 8) & 0xff;
+ if (hcc_params) {
+ pci_read_config_dword(pdev,
+ hcc_params + EHCI_USBLEGSUP,
+ &val);
+ if (((val & 0xff) == 1) && (val & EHCI_USBLEGSUP_BIOS)) {
+ /*
+ * Ok, BIOS is in smm mode, try to hand off...
+ */
+ pci_read_config_dword(pdev,
+ hcc_params + EHCI_USBLEGCTLSTS,
+ &temp);
+ pci_write_config_dword(pdev,
+ hcc_params + EHCI_USBLEGCTLSTS,
+ temp | EHCI_USBLEGCTLSTS_SOOE);
+ val |= EHCI_USBLEGSUP_OS;
+ pci_write_config_dword(pdev,
+ hcc_params + EHCI_USBLEGSUP,
+ val);
+
+ wait_time = 500;
+ do {
+ msleep(10);
+ wait_time -= 10;
+ pci_read_config_dword(pdev,
+ hcc_params + EHCI_USBLEGSUP,
+ &val);
+ } while (wait_time && (val & EHCI_USBLEGSUP_BIOS));
+ if (!wait_time) {
+ /*
+ * well, possibly buggy BIOS...
+ */
+ printk(KERN_WARNING "%s %s: early BIOS handoff "
+ "failed (BIOS bug ?)\n",
+ pdev->dev.bus_id, "EHCI");
+ pci_write_config_dword(pdev,
+ hcc_params + EHCI_USBLEGSUP,
+ EHCI_USBLEGSUP_OS);
+ pci_write_config_dword(pdev,
+ hcc_params + EHCI_USBLEGCTLSTS,
+ 0);
+ }
+ }
+ }
+
+ /*
+ * halt EHCI & disable its interrupts in any case
+ */
+ val = readl(op_reg_base + EHCI_USBSTS);
+ if ((val & EHCI_USBSTS_HALTED) == 0) {
+ val = readl(op_reg_base + EHCI_USBCMD);
+ val &= ~EHCI_USBCMD_RUN;
+ writel(val, op_reg_base + EHCI_USBCMD);
+
+ wait_time = 2000;
+ delta = 100;
+ do {
+ writel(0x3f, op_reg_base + EHCI_USBSTS);
+ udelay(delta);
+ wait_time -= delta;
+ val = readl(op_reg_base + EHCI_USBSTS);
+ if ((val == ~(u32)0) || (val & EHCI_USBSTS_HALTED)) {
+ break;
+ }
+ } while (wait_time > 0);
+ }
+ writel(0, op_reg_base + EHCI_USBINTR);
+ writel(0x3f, op_reg_base + EHCI_USBSTS);
+
+ iounmap(base);
+
+ return;
+}
+
+
+
+static void __devinit quirk_usb_early_handoff(struct pci_dev *pdev)
+{
+ if (pdev->class == PCI_CLASS_SERIAL_USB_UHCI)
+ quirk_usb_handoff_uhci(pdev);
+ else if (pdev->class == PCI_CLASS_SERIAL_USB_OHCI)
+ quirk_usb_handoff_ohci(pdev);
+ else if (pdev->class == PCI_CLASS_SERIAL_USB_EHCI)
+ quirk_usb_disable_ehci(pdev);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_usb_early_handoff);
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index cad858575ce..5607c0ae683 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -54,6 +54,7 @@
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/usb_sl811.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -1363,7 +1364,7 @@ error:
#ifdef CONFIG_PM
static int
-sl811h_hub_suspend(struct usb_hcd *hcd)
+sl811h_bus_suspend(struct usb_hcd *hcd)
{
// SOFs off
DBG("%s\n", __FUNCTION__);
@@ -1371,7 +1372,7 @@ sl811h_hub_suspend(struct usb_hcd *hcd)
}
static int
-sl811h_hub_resume(struct usb_hcd *hcd)
+sl811h_bus_resume(struct usb_hcd *hcd)
{
// SOFs on
DBG("%s\n", __FUNCTION__);
@@ -1380,8 +1381,8 @@ sl811h_hub_resume(struct usb_hcd *hcd)
#else
-#define sl811h_hub_suspend NULL
-#define sl811h_hub_resume NULL
+#define sl811h_bus_suspend NULL
+#define sl811h_bus_resume NULL
#endif
@@ -1623,8 +1624,8 @@ static struct hc_driver sl811h_hc_driver = {
*/
.hub_status_data = sl811h_hub_status_data,
.hub_control = sl811h_hub_control,
- .hub_suspend = sl811h_hub_suspend,
- .hub_resume = sl811h_hub_resume,
+ .bus_suspend = sl811h_bus_suspend,
+ .bus_resume = sl811h_bus_resume,
};
/*-------------------------------------------------------------------------*/
@@ -1784,17 +1785,14 @@ sl811h_probe(struct device *dev)
*/
static int
-sl811h_suspend(struct device *dev, pm_message_t state, u32 phase)
+sl811h_suspend(struct device *dev, pm_message_t state)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct sl811 *sl811 = hcd_to_sl811(hcd);
int retval = 0;
- if (phase != SUSPEND_POWER_DOWN)
- return retval;
-
if (state.event == PM_EVENT_FREEZE)
- retval = sl811h_hub_suspend(hcd);
+ retval = sl811h_bus_suspend(hcd);
else if (state.event == PM_EVENT_SUSPEND)
port_power(sl811, 0);
if (retval == 0)
@@ -1803,14 +1801,11 @@ sl811h_suspend(struct device *dev, pm_message_t state, u32 phase)
}
static int
-sl811h_resume(struct device *dev, u32 phase)
+sl811h_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct sl811 *sl811 = hcd_to_sl811(hcd);
- if (phase != RESUME_POWER_ON)
- return 0;
-
/* with no "check to see if VBUS is still powered" board hook,
* let's assume it'd only be powered to enable remote wakeup.
*/
@@ -1822,7 +1817,7 @@ sl811h_resume(struct device *dev, u32 phase)
}
dev->power.power_state = PMSG_ON;
- return sl811h_hub_resume(hcd);
+ return sl811h_bus_resume(hcd);
}
#else
@@ -1837,6 +1832,7 @@ sl811h_resume(struct device *dev, u32 phase)
struct device_driver sl811h_driver = {
.name = (char *) hcd_name,
.bus = &platform_bus_type,
+ .owner = THIS_MODULE,
.probe = sl811h_probe,
.remove = __devexit_p(sl811h_remove),
diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 38aebe361ca..e73faf831b2 100644
--- a/drivers/usb/host/sl811_cs.c
+++ b/drivers/usb/host/sl811_cs.c
@@ -19,6 +19,7 @@
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/ioport.h>
+#include <linux/platform_device.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index 4538a98b6f9..151154df37f 100644
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -348,7 +348,6 @@ static int uhci_show_urbp(struct uhci_hcd *uhci, struct urb_priv *urbp, char *bu
if (urbp->urb->status != -EINPROGRESS)
out += sprintf(out, "Status=%d ", urbp->urb->status);
- //out += sprintf(out, "Inserttime=%lx ",urbp->inserttime);
//out += sprintf(out, "FSBRtime=%lx ",urbp->fsbrtime);
count = 0;
@@ -446,11 +445,11 @@ static int uhci_sprint_schedule(struct uhci_hcd *uhci, char *buf, int len)
out += sprintf(out, "Frame List\n");
for (i = 0; i < UHCI_NUMFRAMES; ++i) {
int shown = 0;
- td = uhci->fl->frame_cpu[i];
+ td = uhci->frame_cpu[i];
if (!td)
continue;
- if (td->dma_handle != (dma_addr_t)uhci->fl->frame[i]) {
+ if (td->dma_handle != (dma_addr_t)uhci->frame[i]) {
show_frame_num();
out += sprintf(out, " frame list does not match td->dma_handle!\n");
}
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 0c024898cbe..15e0a511069 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -101,37 +101,16 @@ static void uhci_get_current_frame_number(struct uhci_hcd *uhci);
#include "uhci-q.c"
#include "uhci-hub.c"
+extern void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
+extern int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
+
/*
- * Make sure the controller is completely inactive, unable to
- * generate interrupts or do DMA.
+ * Finish up a host controller reset and update the recorded state.
*/
-static void reset_hc(struct uhci_hcd *uhci)
+static void finish_reset(struct uhci_hcd *uhci)
{
int port;
- /* Turn off PIRQ enable and SMI enable. (This also turns off the
- * BIOS's USB Legacy Support.) Turn off all the R/WC bits too.
- */
- pci_write_config_word(to_pci_dev(uhci_dev(uhci)), USBLEGSUP,
- USBLEGSUP_RWC);
-
- /* Reset the HC - this will force us to get a
- * new notification of any already connected
- * ports due to the virtual disconnect that it
- * implies.
- */
- outw(USBCMD_HCRESET, uhci->io_addr + USBCMD);
- mb();
- udelay(5);
- if (inw(uhci->io_addr + USBCMD) & USBCMD_HCRESET)
- dev_warn(uhci_dev(uhci), "HCRESET not completed yet!\n");
-
- /* Just to be safe, disable interrupt requests and
- * make sure the controller is stopped.
- */
- outw(0, uhci->io_addr + USBINTR);
- outw(0, uhci->io_addr + USBCMD);
-
/* HCRESET doesn't affect the Suspend, Reset, and Resume Detect
* bits in the port status and control registers.
* We have to clear them by hand.
@@ -153,7 +132,8 @@ static void reset_hc(struct uhci_hcd *uhci)
*/
static void hc_died(struct uhci_hcd *uhci)
{
- reset_hc(uhci);
+ uhci_reset_hc(to_pci_dev(uhci_dev(uhci)), uhci->io_addr);
+ finish_reset(uhci);
uhci->hc_inaccessible = 1;
}
@@ -163,44 +143,8 @@ static void hc_died(struct uhci_hcd *uhci)
*/
static void check_and_reset_hc(struct uhci_hcd *uhci)
{
- u16 legsup;
- unsigned int cmd, intr;
-
- /*
- * When restarting a suspended controller, we expect all the
- * settings to be the same as we left them:
- *
- * PIRQ and SMI disabled, no R/W bits set in USBLEGSUP;
- * Controller is stopped and configured with EGSM set;
- * No interrupts enabled except possibly Resume Detect.
- *
- * If any of these conditions are violated we do a complete reset.
- */
- pci_read_config_word(to_pci_dev(uhci_dev(uhci)), USBLEGSUP, &legsup);
- if (legsup & ~(USBLEGSUP_RO | USBLEGSUP_RWC)) {
- dev_dbg(uhci_dev(uhci), "%s: legsup = 0x%04x\n",
- __FUNCTION__, legsup);
- goto reset_needed;
- }
-
- cmd = inw(uhci->io_addr + USBCMD);
- if ((cmd & USBCMD_RS) || !(cmd & USBCMD_CF) || !(cmd & USBCMD_EGSM)) {
- dev_dbg(uhci_dev(uhci), "%s: cmd = 0x%04x\n",
- __FUNCTION__, cmd);
- goto reset_needed;
- }
-
- intr = inw(uhci->io_addr + USBINTR);
- if (intr & (~USBINTR_RESUME)) {
- dev_dbg(uhci_dev(uhci), "%s: intr = 0x%04x\n",
- __FUNCTION__, intr);
- goto reset_needed;
- }
- return;
-
-reset_needed:
- dev_dbg(uhci_dev(uhci), "Performing full reset\n");
- reset_hc(uhci);
+ if (uhci_check_and_reset_hc(to_pci_dev(uhci_dev(uhci)), uhci->io_addr))
+ finish_reset(uhci);
}
/*
@@ -212,13 +156,13 @@ static void configure_hc(struct uhci_hcd *uhci)
outb(USBSOF_DEFAULT, uhci->io_addr + USBSOF);
/* Store the frame list base address */
- outl(uhci->fl->dma_handle, uhci->io_addr + USBFLBASEADD);
+ outl(uhci->frame_dma_handle, uhci->io_addr + USBFLBASEADD);
/* Set the current frame number */
outw(uhci->frame_number, uhci->io_addr + USBFRNUM);
- /* Mark controller as running before we enable interrupts */
- uhci_to_hcd(uhci)->state = HC_STATE_RUNNING;
+ /* Mark controller as not halted before we enable interrupts */
+ uhci_to_hcd(uhci)->state = HC_STATE_SUSPENDED;
mb();
/* Enable PIRQ */
@@ -319,6 +263,7 @@ __acquires(uhci->lock)
static void start_rh(struct uhci_hcd *uhci)
{
+ uhci_to_hcd(uhci)->state = HC_STATE_RUNNING;
uhci->is_stopped = 0;
smp_wmb();
@@ -437,36 +382,21 @@ static void release_uhci(struct uhci_hcd *uhci)
int i;
for (i = 0; i < UHCI_NUM_SKELQH; i++)
- if (uhci->skelqh[i]) {
- uhci_free_qh(uhci, uhci->skelqh[i]);
- uhci->skelqh[i] = NULL;
- }
+ uhci_free_qh(uhci, uhci->skelqh[i]);
- if (uhci->term_td) {
- uhci_free_td(uhci, uhci->term_td);
- uhci->term_td = NULL;
- }
+ uhci_free_td(uhci, uhci->term_td);
- if (uhci->qh_pool) {
- dma_pool_destroy(uhci->qh_pool);
- uhci->qh_pool = NULL;
- }
+ dma_pool_destroy(uhci->qh_pool);
- if (uhci->td_pool) {
- dma_pool_destroy(uhci->td_pool);
- uhci->td_pool = NULL;
- }
+ dma_pool_destroy(uhci->td_pool);
- if (uhci->fl) {
- dma_free_coherent(uhci_dev(uhci), sizeof(*uhci->fl),
- uhci->fl, uhci->fl->dma_handle);
- uhci->fl = NULL;
- }
+ kfree(uhci->frame_cpu);
- if (uhci->dentry) {
- debugfs_remove(uhci->dentry);
- uhci->dentry = NULL;
- }
+ dma_free_coherent(uhci_dev(uhci),
+ UHCI_NUMFRAMES * sizeof(*uhci->frame),
+ uhci->frame, uhci->frame_dma_handle);
+
+ debugfs_remove(uhci->dentry);
}
static int uhci_reset(struct usb_hcd *hcd)
@@ -545,7 +475,6 @@ static int uhci_start(struct usb_hcd *hcd)
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
int retval = -EBUSY;
int i;
- dma_addr_t dma_handle;
struct dentry *dentry;
hcd->uses_new_polling = 1;
@@ -579,17 +508,23 @@ static int uhci_start(struct usb_hcd *hcd)
init_waitqueue_head(&uhci->waitqh);
- uhci->fl = dma_alloc_coherent(uhci_dev(uhci), sizeof(*uhci->fl),
- &dma_handle, 0);
- if (!uhci->fl) {
+ uhci->frame = dma_alloc_coherent(uhci_dev(uhci),
+ UHCI_NUMFRAMES * sizeof(*uhci->frame),
+ &uhci->frame_dma_handle, 0);
+ if (!uhci->frame) {
dev_err(uhci_dev(uhci), "unable to allocate "
"consistent memory for frame list\n");
- goto err_alloc_fl;
+ goto err_alloc_frame;
}
+ memset(uhci->frame, 0, UHCI_NUMFRAMES * sizeof(*uhci->frame));
- memset((void *)uhci->fl, 0, sizeof(*uhci->fl));
-
- uhci->fl->dma_handle = dma_handle;
+ uhci->frame_cpu = kcalloc(UHCI_NUMFRAMES, sizeof(*uhci->frame_cpu),
+ GFP_KERNEL);
+ if (!uhci->frame_cpu) {
+ dev_err(uhci_dev(uhci), "unable to allocate "
+ "memory for frame pointers\n");
+ goto err_alloc_frame_cpu;
+ }
uhci->td_pool = dma_pool_create("uhci_td", uhci_dev(uhci),
sizeof(struct uhci_td), 16, 0);
@@ -672,7 +607,7 @@ static int uhci_start(struct usb_hcd *hcd)
irq = 7;
/* Only place we don't use the frame list routines */
- uhci->fl->frame[i] = UHCI_PTR_QH |
+ uhci->frame[i] = UHCI_PTR_QH |
cpu_to_le32(uhci->skelqh[irq]->dma_handle);
}
@@ -690,31 +625,29 @@ static int uhci_start(struct usb_hcd *hcd)
* error exits:
*/
err_alloc_skelqh:
- for (i = 0; i < UHCI_NUM_SKELQH; i++)
- if (uhci->skelqh[i]) {
+ for (i = 0; i < UHCI_NUM_SKELQH; i++) {
+ if (uhci->skelqh[i])
uhci_free_qh(uhci, uhci->skelqh[i]);
- uhci->skelqh[i] = NULL;
- }
+ }
uhci_free_td(uhci, uhci->term_td);
- uhci->term_td = NULL;
err_alloc_term_td:
dma_pool_destroy(uhci->qh_pool);
- uhci->qh_pool = NULL;
err_create_qh_pool:
dma_pool_destroy(uhci->td_pool);
- uhci->td_pool = NULL;
err_create_td_pool:
- dma_free_coherent(uhci_dev(uhci), sizeof(*uhci->fl),
- uhci->fl, uhci->fl->dma_handle);
- uhci->fl = NULL;
+ kfree(uhci->frame_cpu);
+
+err_alloc_frame_cpu:
+ dma_free_coherent(uhci_dev(uhci),
+ UHCI_NUMFRAMES * sizeof(*uhci->frame),
+ uhci->frame, uhci->frame_dma_handle);
-err_alloc_fl:
+err_alloc_frame:
debugfs_remove(uhci->dentry);
- uhci->dentry = NULL;
err_create_debug_entry:
return retval;
@@ -726,7 +659,7 @@ static void uhci_stop(struct usb_hcd *hcd)
spin_lock_irq(&uhci->lock);
if (!uhci->hc_inaccessible)
- reset_hc(uhci);
+ hc_died(uhci);
uhci_scan_schedule(uhci, NULL);
spin_unlock_irq(&uhci->lock);
@@ -774,14 +707,8 @@ static int uhci_suspend(struct usb_hcd *hcd, pm_message_t message)
if (uhci->hc_inaccessible) /* Dead or already suspended */
goto done;
-#ifndef CONFIG_USB_SUSPEND
- /* Otherwise this would never happen */
- suspend_rh(uhci, UHCI_RH_SUSPENDED);
-#endif
-
if (uhci->rh_state > UHCI_RH_SUSPENDED) {
dev_warn(uhci_dev(uhci), "Root hub isn't suspended!\n");
- hcd->state = HC_STATE_RUNNING;
rc = -EBUSY;
goto done;
};
@@ -820,10 +747,6 @@ static int uhci_resume(struct usb_hcd *hcd)
check_and_reset_hc(uhci);
configure_hc(uhci);
-#ifndef CONFIG_USB_SUSPEND
- /* Otherwise this would never happen */
- wakeup_rh(uhci);
-#endif
if (uhci->rh_state == UHCI_RH_RESET)
suspend_rh(uhci, UHCI_RH_SUSPENDED);
@@ -881,8 +804,8 @@ static const struct hc_driver uhci_driver = {
#ifdef CONFIG_PM
.suspend = uhci_suspend,
.resume = uhci_resume,
- .hub_suspend = uhci_rh_suspend,
- .hub_resume = uhci_rh_resume,
+ .bus_suspend = uhci_rh_suspend,
+ .bus_resume = uhci_rh_resume,
#endif
.stop = uhci_stop,
@@ -908,6 +831,7 @@ MODULE_DEVICE_TABLE(pci, uhci_pci_ids);
static struct pci_driver uhci_pci_driver = {
.name = (char *)hcd_name,
.id_table = uhci_pci_ids,
+ .owner = THIS_MODULE,
.probe = usb_hcd_pci_probe,
.remove = usb_hcd_pci_remove,
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 282f40b7588..e576db57a92 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -7,6 +7,7 @@
#define usb_packetid(pipe) (usb_pipein(pipe) ? USB_PID_IN : USB_PID_OUT)
#define PIPE_DEVEP_MASK 0x0007ff00
+
/*
* Universal Host Controller Interface data structures and defines
*/
@@ -82,15 +83,10 @@
#define UHCI_MAX_SOF_NUMBER 2047 /* in an SOF packet */
#define CAN_SCHEDULE_FRAMES 1000 /* how far future frames can be scheduled */
-struct uhci_frame_list {
- __le32 frame[UHCI_NUMFRAMES];
-
- void *frame_cpu[UHCI_NUMFRAMES];
-
- dma_addr_t dma_handle;
-};
-struct urb_priv;
+/*
+ * Queue Headers
+ */
/*
* One role of a QH is to hold a queue of TDs for some endpoint. Each QH is
@@ -116,13 +112,13 @@ struct uhci_qh {
struct urb_priv *urbp;
- struct list_head list; /* P: uhci->frame_list_lock */
- struct list_head remove_list; /* P: uhci->remove_list_lock */
+ struct list_head list;
+ struct list_head remove_list;
} __attribute__((aligned(16)));
/*
* We need a special accessor for the element pointer because it is
- * subject to asynchronous updates by the controller
+ * subject to asynchronous updates by the controller.
*/
static __le32 inline qh_element(struct uhci_qh *qh) {
__le32 element = qh->element;
@@ -131,6 +127,11 @@ static __le32 inline qh_element(struct uhci_qh *qh) {
return element;
}
+
+/*
+ * Transfer Descriptors
+ */
+
/*
* for TD <status>:
*/
@@ -183,17 +184,10 @@ static __le32 inline qh_element(struct uhci_qh *qh) {
*
* That's silly, the hardware doesn't care. The hardware only cares that
* the hardware words are 16-byte aligned, and we can have any amount of
- * sw space after the TD entry as far as I can tell.
- *
- * But let's just go with the documentation, at least for 32-bit machines.
- * On 64-bit machines we probably want to take advantage of the fact that
- * hw doesn't really care about the size of the sw-only area.
- *
- * Alas, not anymore, we have more than 4 words for software, woops.
- * Everything still works tho, surprise! -jerdfelt
+ * sw space after the TD entry.
*
* td->link points to either another TD (not necessarily for the same urb or
- * even the same endpoint), or nothing (PTR_TERM), or a QH (for queued urbs)
+ * even the same endpoint), or nothing (PTR_TERM), or a QH (for queued urbs).
*/
struct uhci_td {
/* Hardware fields */
@@ -205,18 +199,16 @@ struct uhci_td {
/* Software fields */
dma_addr_t dma_handle;
- struct urb *urb;
-
- struct list_head list; /* P: urb->lock */
- struct list_head remove_list; /* P: uhci->td_remove_list_lock */
+ struct list_head list;
+ struct list_head remove_list;
int frame; /* for iso: what frame? */
- struct list_head fl_list; /* P: uhci->frame_list_lock */
+ struct list_head fl_list;
} __attribute__((aligned(16)));
/*
* We need a special accessor for the control/status word because it is
- * subject to asynchronous updates by the controller
+ * subject to asynchronous updates by the controller.
*/
static u32 inline td_status(struct uhci_td *td) {
__le32 status = td->status;
@@ -227,6 +219,10 @@ static u32 inline td_status(struct uhci_td *td) {
/*
+ * Skeleton Queue Headers
+ */
+
+/*
* The UHCI driver places Interrupt, Control and Bulk into QH's both
* to group together TD's for one transfer, and also to faciliate queuing
* of URB's. To make it easy to insert entries into the schedule, we have
@@ -256,15 +252,15 @@ static u32 inline td_status(struct uhci_td *td) {
*
* The terminating QH is used for 2 reasons:
* - To place a terminating TD which is used to workaround a PIIX bug
- * (see Intel errata for explanation)
+ * (see Intel errata for explanation), and
* - To loop back to the full-speed control queue for full-speed bandwidth
- * reclamation
+ * reclamation.
*
* Isochronous transfers are stored before the start of the skeleton
* schedule and don't use QH's. While the UHCI spec doesn't forbid the
- * use of QH's for Isochronous, it doesn't use them either. Since we don't
- * need to use them either, we follow the spec diagrams in hope that it'll
- * be more compatible with future UHCI implementations.
+ * use of QH's for Isochronous, it doesn't use them either. And the spec
+ * says that queues never advance on an error completion status, which
+ * makes them totally unsuitable for Isochronous transfers.
*/
#define UHCI_NUM_SKELQH 12
@@ -314,8 +310,13 @@ static inline int __interval_to_skel(int interval)
return 0; /* int128 for 128-255 ms (Max.) */
}
+
+/*
+ * The UHCI controller and root hub
+ */
+
/*
- * States for the root hub.
+ * States for the root hub:
*
* To prevent "bouncing" in the presence of electrical noise,
* when there are no devices attached we delay for 1 second in the
@@ -326,7 +327,7 @@ static inline int __interval_to_skel(int interval)
*/
enum uhci_rh_state {
/* In the following states the HC must be halted.
- * These two must come first */
+ * These two must come first. */
UHCI_RH_RESET,
UHCI_RH_SUSPENDED,
@@ -338,13 +339,13 @@ enum uhci_rh_state {
UHCI_RH_SUSPENDING,
/* In the following states it's an error if the HC is halted.
- * These two must come last */
+ * These two must come last. */
UHCI_RH_RUNNING, /* The normal state */
UHCI_RH_RUNNING_NODEVS, /* Running with no devices attached */
};
/*
- * This describes the full uhci information.
+ * The full UHCI controller information:
*/
struct uhci_hcd {
@@ -361,7 +362,11 @@ struct uhci_hcd {
struct uhci_qh *skelqh[UHCI_NUM_SKELQH]; /* Skeleton QH's */
spinlock_t lock;
- struct uhci_frame_list *fl; /* P: uhci->lock */
+
+ dma_addr_t frame_dma_handle; /* Hardware frame list */
+ __le32 *frame;
+ void **frame_cpu; /* CPU's frame list */
+
int fsbr; /* Full-speed bandwidth reclamation */
unsigned long fsbrtimeout; /* FSBR delay */
@@ -385,22 +390,22 @@ struct uhci_hcd {
unsigned long ports_timeout; /* Time to stop signalling */
/* Main list of URB's currently controlled by this HC */
- struct list_head urb_list; /* P: uhci->lock */
+ struct list_head urb_list;
/* List of QH's that are done, but waiting to be unlinked (race) */
- struct list_head qh_remove_list; /* P: uhci->lock */
+ struct list_head qh_remove_list;
unsigned int qh_remove_age; /* Age in frames */
/* List of TD's that are done, but waiting to be freed (race) */
- struct list_head td_remove_list; /* P: uhci->lock */
+ struct list_head td_remove_list;
unsigned int td_remove_age; /* Age in frames */
/* List of asynchronously unlinked URB's */
- struct list_head urb_remove_list; /* P: uhci->lock */
+ struct list_head urb_remove_list;
unsigned int urb_remove_age; /* Age in frames */
/* List of URB's awaiting completion callback */
- struct list_head complete_list; /* P: uhci->lock */
+ struct list_head complete_list;
int rh_numports; /* Number of root-hub ports */
@@ -419,13 +424,17 @@ static inline struct usb_hcd *uhci_to_hcd(struct uhci_hcd *uhci)
#define uhci_dev(u) (uhci_to_hcd(u)->self.controller)
+
+/*
+ * Private per-URB data
+ */
struct urb_priv {
struct list_head urb_list;
struct urb *urb;
struct uhci_qh *qh; /* QH for this URB */
- struct list_head td_list; /* P: urb->lock */
+ struct list_head td_list;
unsigned fsbr : 1; /* URB turned on FSBR */
unsigned fsbr_timeout : 1; /* URB timed out on FSBR */
@@ -434,12 +443,12 @@ struct urb_priv {
/* a control transfer, retrigger */
/* the status phase */
- unsigned long inserttime; /* In jiffies */
unsigned long fsbrtime; /* In jiffies */
- struct list_head queue_list; /* P: uhci->frame_list_lock */
+ struct list_head queue_list;
};
+
/*
* Locking in uhci.c
*
@@ -459,6 +468,5 @@ struct urb_priv {
#define PCI_VENDOR_ID_GENESYS 0x17a0
#define PCI_DEVICE_ID_GL880S_UHCI 0x8083
-#define PCI_DEVICE_ID_GL880S_EHCI 0x8084
#endif
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index 4e0fbe2c1a9..7e46887d9e1 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -89,10 +89,10 @@ static void uhci_insert_td_frame_list(struct uhci_hcd *uhci, struct uhci_td *td,
td->frame = framenum;
/* Is there a TD already mapped there? */
- if (uhci->fl->frame_cpu[framenum]) {
+ if (uhci->frame_cpu[framenum]) {
struct uhci_td *ftd, *ltd;
- ftd = uhci->fl->frame_cpu[framenum];
+ ftd = uhci->frame_cpu[framenum];
ltd = list_entry(ftd->fl_list.prev, struct uhci_td, fl_list);
list_add_tail(&td->fl_list, &ftd->fl_list);
@@ -101,29 +101,32 @@ static void uhci_insert_td_frame_list(struct uhci_hcd *uhci, struct uhci_td *td,
wmb();
ltd->link = cpu_to_le32(td->dma_handle);
} else {
- td->link = uhci->fl->frame[framenum];
+ td->link = uhci->frame[framenum];
wmb();
- uhci->fl->frame[framenum] = cpu_to_le32(td->dma_handle);
- uhci->fl->frame_cpu[framenum] = td;
+ uhci->frame[framenum] = cpu_to_le32(td->dma_handle);
+ uhci->frame_cpu[framenum] = td;
}
}
-static void uhci_remove_td(struct uhci_hcd *uhci, struct uhci_td *td)
+static inline void uhci_remove_td_frame_list(struct uhci_hcd *uhci,
+ struct uhci_td *td)
{
/* If it's not inserted, don't remove it */
- if (td->frame == -1 && list_empty(&td->fl_list))
+ if (td->frame == -1) {
+ WARN_ON(!list_empty(&td->fl_list));
return;
+ }
- if (td->frame != -1 && uhci->fl->frame_cpu[td->frame] == td) {
+ if (uhci->frame_cpu[td->frame] == td) {
if (list_empty(&td->fl_list)) {
- uhci->fl->frame[td->frame] = td->link;
- uhci->fl->frame_cpu[td->frame] = NULL;
+ uhci->frame[td->frame] = td->link;
+ uhci->frame_cpu[td->frame] = NULL;
} else {
struct uhci_td *ntd;
ntd = list_entry(td->fl_list.next, struct uhci_td, fl_list);
- uhci->fl->frame[td->frame] = cpu_to_le32(ntd->dma_handle);
- uhci->fl->frame_cpu[td->frame] = ntd;
+ uhci->frame[td->frame] = cpu_to_le32(ntd->dma_handle);
+ uhci->frame_cpu[td->frame] = ntd;
}
} else {
struct uhci_td *ptd;
@@ -132,13 +135,20 @@ static void uhci_remove_td(struct uhci_hcd *uhci, struct uhci_td *td)
ptd->link = td->link;
}
- wmb();
- td->link = UHCI_PTR_TERM;
-
list_del_init(&td->fl_list);
td->frame = -1;
}
+static void unlink_isochronous_tds(struct uhci_hcd *uhci, struct urb *urb)
+{
+ struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv;
+ struct uhci_td *td;
+
+ list_for_each_entry(td, &urbp->td_list, list)
+ uhci_remove_td_frame_list(uhci, td);
+ wmb();
+}
+
/*
* Inserts a td list into qh.
*/
@@ -443,7 +453,6 @@ static struct urb_priv *uhci_alloc_urb_priv(struct uhci_hcd *uhci, struct urb *u
memset((void *)urbp, 0, sizeof(*urbp));
- urbp->inserttime = jiffies;
urbp->fsbrtime = jiffies;
urbp->urb = urb;
@@ -462,8 +471,6 @@ static void uhci_add_td_to_urb(struct urb *urb, struct uhci_td *td)
{
struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv;
- td->urb = urb;
-
list_add_tail(&td->list, &urbp->td_list);
}
@@ -473,8 +480,6 @@ static void uhci_remove_td_from_urb(struct uhci_td *td)
return;
list_del_init(&td->list);
-
- td->urb = NULL;
}
static void uhci_destroy_urb_priv(struct uhci_hcd *uhci, struct urb *urb)
@@ -503,7 +508,6 @@ static void uhci_destroy_urb_priv(struct uhci_hcd *uhci, struct urb *urb)
list_for_each_entry_safe(td, tmp, &urbp->td_list, list) {
uhci_remove_td_from_urb(td);
- uhci_remove_td(uhci, td);
list_add(&td->remove_list, &uhci->td_remove_list);
}
@@ -1073,6 +1077,7 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb)
struct uhci_td *td;
int i, ret, frame;
int status, destination;
+ struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv;
status = TD_CTRL_ACTIVE | TD_CTRL_IOS;
destination = (urb->pipe & PIPE_DEVEP_MASK) | usb_packetid(urb->pipe);
@@ -1081,11 +1086,7 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb)
if (ret)
return ret;
- frame = urb->start_frame;
- for (i = 0; i < urb->number_of_packets; i++, frame += urb->interval) {
- if (!urb->iso_frame_desc[i].length)
- continue;
-
+ for (i = 0; i < urb->number_of_packets; i++) {
td = uhci_alloc_td(uhci);
if (!td)
return -ENOMEM;
@@ -1096,8 +1097,12 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb)
if (i + 1 >= urb->number_of_packets)
td->status |= cpu_to_le32(TD_CTRL_IOC);
+ }
+ frame = urb->start_frame;
+ list_for_each_entry(td, &urbp->td_list, list) {
uhci_insert_td_frame_list(uhci, td, frame);
+ frame += urb->interval;
}
return -EINPROGRESS;
@@ -1110,7 +1115,7 @@ static int uhci_result_isochronous(struct uhci_hcd *uhci, struct urb *urb)
int status;
int i, ret = 0;
- urb->actual_length = 0;
+ urb->actual_length = urb->error_count = 0;
i = 0;
list_for_each_entry(td, &urbp->td_list, list) {
@@ -1134,6 +1139,7 @@ static int uhci_result_isochronous(struct uhci_hcd *uhci, struct urb *urb)
i++;
}
+ unlink_isochronous_tds(uhci, urb);
return ret;
}
@@ -1366,6 +1372,8 @@ static int uhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
goto done;
list_del_init(&urbp->urb_list);
+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
+ unlink_isochronous_tds(uhci, urb);
uhci_unlink_generic(uhci, urb);
uhci_get_current_frame_number(uhci);