[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>

1 files changed, 7 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index e09f41bd6b2a..ddc61a1d1153 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -90,6 +90,13 @@ int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
 void snd_hda_codec_resume_amp(struct hda_codec *codec);
 #endif
 
+void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
+                             unsigned int *tlv);
+struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
+                                            const char *name);
+int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
+                        unsigned int *tlv, const char **slaves);
+
 /* amp value bits */
 #define HDA_AMP_MUTE    0x80
 #define HDA_AMP_UNMUTE  0x00