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path: root/drivers/usb/host/ehci-hcd.c
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Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
-rw-r--r--drivers/usb/host/ehci-hcd.c64
1 files changed, 51 insertions, 13 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index f72ae0b6ee7..59e81615e09 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -95,7 +95,7 @@ static const char hcd_name [] = "ehci_hcd";
#define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */
#define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */
#define EHCI_SHRINK_JIFFIES (DIV_ROUND_UP(HZ, 200) + 1)
- /* 200-ms async qh unlink delay */
+ /* 5-ms async qh unlink delay */
/* Initial IRQ latency: faster than hw default */
static int log2_irq_thresh = 0; // 0 to 6
@@ -238,7 +238,7 @@ static int handshake_on_error_set_halt(struct ehci_hcd *ehci, void __iomem *ptr,
error = handshake(ehci, ptr, mask, done, usec);
if (error) {
ehci_halt(ehci);
- ehci_to_hcd(ehci)->state = HC_STATE_HALT;
+ ehci->rh_state = EHCI_RH_HALTED;
ehci_err(ehci, "force halt; handshake %p %08x %08x -> %d\n",
ptr, mask, done, error);
}
@@ -278,7 +278,7 @@ static int ehci_reset (struct ehci_hcd *ehci)
command |= CMD_RESET;
dbg_cmd (ehci, "reset", command);
ehci_writel(ehci, command, &ehci->regs->command);
- ehci_to_hcd(ehci)->state = HC_STATE_HALT;
+ ehci->rh_state = EHCI_RH_HALTED;
ehci->next_statechange = jiffies;
retval = handshake (ehci, &ehci->regs->command,
CMD_RESET, 0, 250 * 1000);
@@ -307,7 +307,7 @@ static void ehci_quiesce (struct ehci_hcd *ehci)
u32 temp;
#ifdef DEBUG
- if (!HC_IS_RUNNING (ehci_to_hcd(ehci)->state))
+ if (ehci->rh_state != EHCI_RH_RUNNING)
BUG ();
#endif
@@ -356,7 +356,7 @@ static void ehci_iaa_watchdog(unsigned long param)
*/
if (ehci->reclaim
&& !timer_pending(&ehci->iaa_watchdog)
- && HC_IS_RUNNING(ehci_to_hcd(ehci)->state)) {
+ && ehci->rh_state == EHCI_RH_RUNNING) {
u32 cmd, status;
/* If we get here, IAA is *REALLY* late. It's barely
@@ -496,7 +496,7 @@ static void ehci_work (struct ehci_hcd *ehci)
* 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) &&
+ if (ehci->rh_state == EHCI_RH_RUNNING &&
(ehci->async->qh_next.ptr != NULL ||
ehci->periodic_sched != 0))
timer_action (ehci, TIMER_IO_WATCHDOG);
@@ -516,7 +516,7 @@ static void ehci_stop (struct usb_hcd *hcd)
del_timer_sync(&ehci->iaa_watchdog);
spin_lock_irq(&ehci->lock);
- if (HC_IS_RUNNING (hcd->state))
+ if (ehci->rh_state == EHCI_RH_RUNNING)
ehci_quiesce (ehci);
ehci_silence_controller(ehci);
@@ -741,7 +741,7 @@ static int ehci_run (struct usb_hcd *hcd)
* be started before the port switching actions could complete.
*/
down_write(&ehci_cf_port_reset_rwsem);
- hcd->state = HC_STATE_RUNNING;
+ ehci->rh_state = EHCI_RH_RUNNING;
ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */
msleep(5);
@@ -768,6 +768,35 @@ static int ehci_run (struct usb_hcd *hcd)
return 0;
}
+static int __maybe_unused ehci_setup (struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ int retval;
+
+ ehci->regs = (void __iomem *)ehci->caps +
+ HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
+ dbg_hcs_params(ehci, "reset");
+ dbg_hcc_params(ehci, "reset");
+
+ /* cache this readonly data; minimize chip reads */
+ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+ ehci->sbrn = HCD_USB2;
+
+ retval = ehci_halt(ehci);
+ if (retval)
+ return retval;
+
+ /* data structure init */
+ retval = ehci_init(hcd);
+ if (retval)
+ return retval;
+
+ ehci_reset(ehci);
+
+ return 0;
+}
+
/*-------------------------------------------------------------------------*/
static irqreturn_t ehci_irq (struct usb_hcd *hcd)
@@ -788,7 +817,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
/* Shared IRQ? */
masked_status = status & INTR_MASK;
- if (!masked_status || unlikely(hcd->state == HC_STATE_HALT)) {
+ if (!masked_status || unlikely(ehci->rh_state == EHCI_RH_HALTED)) {
spin_unlock(&ehci->lock);
return IRQ_NONE;
}
@@ -952,7 +981,7 @@ static int ehci_urb_enqueue (
static void unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
{
/* failfast */
- if (!HC_IS_RUNNING(ehci_to_hcd(ehci)->state) && ehci->reclaim)
+ if (ehci->rh_state != EHCI_RH_RUNNING && ehci->reclaim)
end_unlink_async(ehci);
/* If the QH isn't linked then there's nothing we can do
@@ -1079,7 +1108,7 @@ rescan:
goto idle_timeout;
}
- if (!HC_IS_RUNNING (hcd->state))
+ if (ehci->rh_state != EHCI_RH_RUNNING)
qh->qh_state = QH_STATE_IDLE;
switch (qh->qh_state) {
case QH_STATE_LINKED:
@@ -1166,8 +1195,7 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
static int ehci_get_frame (struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
- return (ehci_readl(ehci, &ehci->regs->frame_index) >> 3) %
- ehci->periodic_size;
+ return (ehci_read_frame_index(ehci) >> 3) % ehci->periodic_size;
}
/*-------------------------------------------------------------------------*/
@@ -1291,6 +1319,16 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_grlib_driver
#endif
+#ifdef CONFIG_USB_PXA168_EHCI
+#include "ehci-pxa168.c"
+#define PLATFORM_DRIVER ehci_pxa168_driver
+#endif
+
+#ifdef CONFIG_NLM_XLR
+#include "ehci-xls.c"
+#define PLATFORM_DRIVER ehci_xls_driver
+#endif
+
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
!defined(XILINX_OF_PLATFORM_DRIVER)