[ALSA] hda-codec - Add virtual master controls
Add master controls using vmaster to codecs that have no real hardware
master volume registers.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index a0af868..190e112 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -170,6 +170,9 @@
struct snd_kcontrol_new *kctl_alloc;
struct hda_input_mux private_dimux;
struct hda_input_mux private_imux;
+
+ /* virtual master */
+ unsigned int vmaster_tlv[4];
};
static hda_nid_t stac9200_adc_nids[1] = {
@@ -794,6 +797,34 @@
.put = stac92xx_dmux_enum_put,
};
+static const char *slave_vols[] = {
+ "Front Playback Volume",
+ "Surround Playback Volume",
+ "Center Playback Volume",
+ "LFE Playback Volume",
+ "Side Playback Volume",
+ "Headphone Playback Volume",
+ "Headphone Playback Volume",
+ "Speaker Playback Volume",
+ "External Speaker Playback Volume",
+ "Speaker2 Playback Volume",
+ NULL
+};
+
+static const char *slave_sws[] = {
+ "Front Playback Switch",
+ "Surround Playback Switch",
+ "Center Playback Switch",
+ "LFE Playback Switch",
+ "Side Playback Switch",
+ "Headphone Playback Switch",
+ "Headphone Playback Switch",
+ "Speaker Playback Switch",
+ "External Speaker Playback Switch",
+ "Speaker2 Playback Switch",
+ NULL
+};
+
static int stac92xx_build_controls(struct hda_codec *codec)
{
struct sigmatel_spec *spec = codec->spec;
@@ -827,6 +858,23 @@
if (err < 0)
return err;
}
+
+ /* if we have no master control, let's create it */
+ if (!snd_hda_find_mixer_ctl(codec, "Master Playback Volume")) {
+ snd_hda_set_vmaster_tlv(codec, spec->multiout.dac_nids[0],
+ HDA_OUTPUT, spec->vmaster_tlv);
+ err = snd_hda_add_vmaster(codec, "Master Playback Volume",
+ spec->vmaster_tlv, 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, slave_sws);
+ if (err < 0)
+ return err;
+ }
+
return 0;
}