From: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu, 6 Feb 2014 11:03:59 +0000 (+0100)
Subject: xhci iso: fix time calculation
X-Git-Tag: qemu-xen-4.5.0-rc1~187^2~3
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=786ad214c72226fa5bd4ebf18aeb4c6b54d3ba80;p=qemu-upstream-4.5-testing.git

xhci iso: fix time calculation

Frameid specifies frames not microframes, so we
need to shift it to get the microframe index.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 8d9cfe881..706cdc732 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -1974,8 +1974,8 @@ static void xhci_calc_iso_kick(XHCIState *xhci, XHCITransfer *xfer,
             xfer->mfindex_kick = asap;
         }
     } else {
-        xfer->mfindex_kick = (xfer->trbs[0].control >> TRB_TR_FRAMEID_SHIFT)
-            & TRB_TR_FRAMEID_MASK;
+        xfer->mfindex_kick = ((xfer->trbs[0].control >> TRB_TR_FRAMEID_SHIFT)
+                              & TRB_TR_FRAMEID_MASK) << 3;
         xfer->mfindex_kick |= mfindex & ~0x3fff;
         if (xfer->mfindex_kick < mfindex) {
             xfer->mfindex_kick += 0x4000;