From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: Gerd Hoffmann <kraxel@redhat.com>
Subject: [Qemu-devel] [PATCH 1/2] xhci iso: fix time calculation
Date: Thu, 6 Feb 2014 12:42:02 +0100 [thread overview]
Message-ID: <1391686923-11688-1-git-send-email-kraxel@redhat.com> (raw)
Frameid specifies frames not microframes, so we
need to shift it to get the microframe index.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
hw/usb/hcd-xhci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 44964f4..2c54b86 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;
--
1.8.3.1
next reply other threads:[~2014-02-06 11:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-06 11:42 Gerd Hoffmann [this message]
2014-02-06 11:42 ` [Qemu-devel] [PATCH 2/2] xhci iso: allow for some latency Gerd Hoffmann
2014-02-07 14:38 ` [Qemu-devel] [PATCH 1/2] xhci iso: fix time calculation Hans de Goede
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