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

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

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 42 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 1edcd3221c98..deb33ae109c8 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -1308,6 +1308,31 @@ static const struct hda_pcm_stream via_pcm_digital_capture = {
         .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)
 {
         struct via_spec *spec = codec->spec;
@@ -1343,6 +1368,23 @@ static int via_build_controls(struct hda_codec *codec)
                         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 */
         kctl = snd_hda_find_mixer_ctl(codec, "Input Source");
         for (i = 0; kctl && i < kctl->count; i++) {