X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fehci-hcd.c;h=f2618d17710d248938632cee6278a2a3bb690a8b;hb=2d25ee36c84d5b2d6be8bfaf80256ecad69a06ca;hp=e551bb38852be35eefeb532a23c260ecff6109ff;hpb=fe2fd6cc346cc7199a52250e8fb594852b2a321b;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index e551bb38852..f2618d17710 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -110,6 +110,42 @@ MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications");
 
 /*-------------------------------------------------------------------------*/
 
+static void
+timer_action(struct ehci_hcd *ehci, enum ehci_timer_action action)
+{
+	/* Don't override timeouts which shrink or (later) disable
+	 * the async ring; just the I/O watchdog.  Note that if a
+	 * SHRINK were pending, OFF would never be requested.
+	 */
+	if (timer_pending(&ehci->watchdog)
+			&& ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF))
+				& ehci->actions))
+		return;
+
+	if (!test_and_set_bit(action, &ehci->actions)) {
+		unsigned long t;
+
+		switch (action) {
+		case TIMER_IO_WATCHDOG:
+			t = EHCI_IO_JIFFIES;
+			break;
+		case TIMER_ASYNC_OFF:
+			t = EHCI_ASYNC_JIFFIES;
+			break;
+		/* case TIMER_ASYNC_SHRINK: */
+		default:
+			/* add a jiffie since we synch against the
+			 * 8 KHz uframe counter.
+			 */
+			t = DIV_ROUND_UP(EHCI_SHRINK_FRAMES * HZ, 1000) + 1;
+			break;
+		}
+		mod_timer(&ehci->watchdog, t + jiffies);
+	}
+}
+
+/*-------------------------------------------------------------------------*/
+
 /*
  * handshake - spin reading hc until handshake completes or fails
  * @ptr: address of hc register to be read