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From 05a5f7c79ad8dc4887e7cd60c2572121b51adce7 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@gmail.com>
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Date: Tue, 25 Oct 2011 16:53:00 +0200
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Subject: [PATCH] hda: do not mix output and input streams, RHBZ #740493
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Windows 7 may use the same stream number for input and output.
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That will result in lot of garbage on playback.
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The hardcoded value of 4 needs to be in sync with GCAP streams
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description and IN/OUT registers.
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Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com>
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Signed-off-by: malc <av1474@comtv.ru>
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(cherry picked from commit 36ac4ad3d054a7b4962a6393630a73591cfa9558)
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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Signed-off-by: Andreas Färber <afaerber@suse.de>
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---
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hw/intel-hda.c | 9 +++++----
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1 file changed, 5 insertions(+), 4 deletions(-)
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diff --git a/hw/intel-hda.c b/hw/intel-hda.c
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index 5a2bc3a..7d02558 100644
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--- a/hw/intel-hda.c
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+++ b/hw/intel-hda.c
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@@ -389,14 +389,15 @@ static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
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{
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HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
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IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
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- IntelHDAStream *st = NULL;
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target_phys_addr_t addr;
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uint32_t s, copy, left;
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+ IntelHDAStream *st;
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bool irq = false;
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- for (s = 0; s < ARRAY_SIZE(d->st); s++) {
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- if (stnr == ((d->st[s].ctl >> 20) & 0x0f)) {
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- st = d->st + s;
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+ st = output ? d->st + 4 : d->st;
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+ for (s = 0; s < 4; s++) {
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+ if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
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+ st = st + s;
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break;
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}
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}
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--
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1.7.11.2
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