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audio/intel-hda: support FIFORDY 

linux kernel 3.12 has changed intel-hda
driver to always check for FIFORDY, this
causes long hangs in guest since QEMU
always has this bit set to 0. We now simply set
it to 1 always, since we're synchronous anyway
and always ready to receive the stream

Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Stanislav Vorobiov 2014-04-29 16:48:47 +04:00 committed by Gerd Hoffmann
parent c5fa6c86d0
commit a2554a334a
1 changed files with 2 additions and 1 deletions
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3
hw/audio/intel-hda.c
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@ -574,7 +574,7 @@ static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint3
if (st->ctl & 0x01) {
/* reset */
dprint(d, 1, "st #%d: reset\n", reg->stream);
st->ctl = 0;
st->ctl = SD_STS_FIFO_READY << 24;
}
if ((st->ctl & 0x02) != (old & 0x02)) {
uint32_t stnr = (st->ctl >> 20) & 0x0f;
@ -829,6 +829,7 @@ static const struct IntelHDAReg regtab[] = {
.wclear = 0x1c000000, \
.offset = offsetof(IntelHDAState, st[_i].ctl), \
.whandler = intel_hda_set_st_ctl, \
.reset = SD_STS_FIFO_READY << 24 \
}, \
[ ST_REG(_i, ICH6_REG_SD_LPIB) ] = { \
.stream = _i, \