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ALSA: hda - Create virtual-master control for VIA codecs

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Now let's add the missing Master control to VIA codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-06-20 12:47:45 +02:00
parent 4a918ffeaa
commit 370bafbdae
1 changed files with 42 additions and 0 deletions
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42
sound/pci/hda/patch_via.c
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@ -1308,6 +1308,31 @@ static const struct hda_pcm_stream via_pcm_digital_capture = {
.channels_max = 2, .channels_max = 2,
}; };
/*
* slave controls for virtual master
*/
static const char * const via_slave_vols[] = {
"Front Playback Volume",
"Surround Playback Volume",
"Center Playback Volume",
"LFE Playback Volume",
"Side Playback Volume",
"Headphone Playback Volume",
"Speaker Playback Volume",
NULL,
};
static const char * const via_slave_sws[] = {
"Front Playback Switch",
"Surround Playback Switch",
"Center Playback Switch",
"LFE Playback Switch",
"Side Playback Switch",
"Headphone Playback Switch",
"Speaker Playback Switch",
NULL,
};
static int via_build_controls(struct hda_codec *codec) static int via_build_controls(struct hda_codec *codec)
{ {
struct via_spec *spec = codec->spec; struct via_spec *spec = codec->spec;
@ -1343,6 +1368,23 @@ static int via_build_controls(struct hda_codec *codec)
return err; return err;
} }
/* if we have no master control, let's create it */
if (!snd_hda_find_mixer_ctl(codec, "Master Playback Volume")) {
unsigned int vmaster_tlv[4];
snd_hda_set_vmaster_tlv(codec, spec->multiout.dac_nids[0],
HDA_OUTPUT, vmaster_tlv);
err = snd_hda_add_vmaster(codec, "Master Playback Volume",
vmaster_tlv, via_slave_vols);
if (err < 0)
return err;
}
if (!snd_hda_find_mixer_ctl(codec, "Master Playback Switch")) {
err = snd_hda_add_vmaster(codec, "Master Playback Switch",
NULL, via_slave_sws);
if (err < 0)
return err;
}
/* assign Capture Source enums to NID */ /* assign Capture Source enums to NID */
kctl = snd_hda_find_mixer_ctl(codec, "Input Source"); kctl = snd_hda_find_mixer_ctl(codec, "Input Source");
for (i = 0; kctl && i < kctl->count; i++) { for (i = 0; kctl && i < kctl->count; i++) {