Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

[pandora-kernel.git] / drivers / usb / host / ehci-hcd.c

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 47aa22d..3ff9f82 100644 (file)
--- 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)