Hi all:
I slove the problem that qemu doesn't support to disable the sound completely
when someone choose ich6 sound card.
I test it in centos 6.3,guest win7,ich6 sound card.it works fine.
my patch:
--- qemu-kvm-0.12.1.2/hw/hda-audio.c 2013-01-29
10:07:34.750968170 +0800
+++ qemu-kvm-0.12.1.2.new/hw/hda-audio.c 2013-01-29
10:07:05.696283899 +0800
@@ -647,10 +647,59 @@
hda_codec_response(hda, true,
node->pinctl);
break;
case AC_VERB_SET_PIN_WIDGET_CONTROL:
- if (node->pinctl != payload) {
+ if (node->pinctl != payload)
+ {
+ if
(node->pinctl == 0x40 && payload == 0)
+ {
+
st = a->st + node->stindex;
+
if (st->node == NULL)
+
{
+
goto fail;
+
}
+
dprint(a, 1, "amp (%s): %s%s%s%s index %d gain %3d %s\n",
+
st->node->name,
+
(payload & AC_AMP_SET_OUTPUT) ? "o" : "-",
+
(payload & AC_AMP_SET_INPUT) ? "i" : "-",
+
(payload & AC_AMP_SET_LEFT) ? "l" : "-",
+
(payload & AC_AMP_SET_RIGHT) ? "r" : "-",
+
(payload & AC_AMP_SET_INDEX) >> AC_AMP_SET_INDEX_SHIFT,
+
(payload & AC_AMP_GAIN),
+
(payload & AC_AMP_MUTE) ? "muted" : "");
+
st->gain_left = payload & AC_AMP_GAIN;
+
st->mute_left = payload & AC_AMP_MUTE;
+
st->gain_right = payload & AC_AMP_GAIN;
+
st->mute_right = payload & AC_AMP_MUTE;
+
hda_audio_setup(st);
+
hda_audio_set_amp(st);
+
hda_audio_set_running(st, false);
+ }
dprint(a, 1, "unhandled pin control bit\n");
}
- hda_codec_response(hda, true, 0);
+ else
+ {
+ st = a->st
+ node->stindex;
+ if
(st->node == NULL)
+ {
+
goto fail;
+ }
+ dprint(a,
1, "amp (%s): %s%s%s%s index %d gain %3d %s\n",
+
st->node->name,
+
(payload & AC_AMP_SET_OUTPUT) ? "o" : "-",
+
(payload & AC_AMP_SET_INPUT) ? "i" : "-",
+
(payload & AC_AMP_SET_LEFT) ? "l" : "-",
+
(payload & AC_AMP_SET_RIGHT) ? "r" : "-",
+
(payload & AC_AMP_SET_INDEX) >> AC_AMP_SET_INDEX_SHIFT,
+
(payload & AC_AMP_GAIN),
+
(payload & AC_AMP_MUTE) ? "muted" : "");
+
st->gain_left = payload & AC_AMP_GAIN;
+
st->mute_left = payload & AC_AMP_MUTE;
+
st->gain_right = payload & AC_AMP_GAIN;
+
st->mute_right = payload & AC_AMP_MUTE;
+
hda_audio_setup(st);
+
hda_audio_set_amp(st);
+
hda_audio_set_running(st, true);
+ }
+ hda_codec_response(hda, true, 0);
break;
/* audio in/out widget */
