[ALSA] hda-codec - add snd_hda_codec_stereo() function
Added snd_hda_codec_amp_stereo() function that changes both of stereo
channels with the same mask and value bits. It simplifies most of
amp-handling codes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 8dec32cf..35ea0cf 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -84,10 +84,17 @@
int direction, int index);
int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
int direction, int idx, int mask, int val);
+int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
+ int dir, int idx, int mask, int val);
#ifdef CONFIG_PM
void snd_hda_codec_resume_amp(struct hda_codec *codec);
#endif
+/* amp value bits */
+#define HDA_AMP_MUTE 0x80
+#define HDA_AMP_UNMUTE 0x00
+#define HDA_AMP_VOLMASK 0x7f
+
/* mono switch binding multiple inputs */
#define HDA_BIND_MUTE_MONO(xname, nid, channel, indices, direction) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \