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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>
This commit is contained in:
Gerd Hoffmann 2014-02-06 12:03:59 +01:00
parent c348e48175
commit 786ad214c7
1 changed files with 2 additions and 2 deletions
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4
hw/usb/hcd-xhci.c
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@ -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;