[ALSA] hda-codec - make volume knob, the master volume for sigmatel codecs
VolumeKnob is present on most sigmatel codecs, it allows to decrease
volume of all DACs at once, it is a kind of post-procesing volume.
Note that all output amps of sigmatel only decrease volume, and all
input amps only increase volume.
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index c94775c..a2b1dd5 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -339,6 +339,39 @@
return 1;
}
+static int stac92xx_volknob_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 127;
+ return 0;
+}
+
+static int stac92xx_volknob_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = kcontrol->private_value;
+ return 0;
+}
+
+static int stac92xx_volknob_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ if (kcontrol->private_value == ucontrol->value.integer.value[0])
+ return 0;
+
+ kcontrol->private_value = ucontrol->value.integer.value[0];
+
+ snd_hda_codec_write_cache(codec, 0x24, 0,
+ AC_VERB_SET_VOLUME_KNOB_CONTROL,
+ kcontrol->private_value | 0x80);
+ return 1;
+}
+
static struct hda_verb stac9200_core_init[] = {
/* set dac0mux for dac converter */
@@ -401,6 +434,17 @@
.private_value = verb_read | (verb_write << 16), \
}
+#define STAC_VOLKNOB \
+ { \
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+ .name = "Master Playback Volume", \
+ .count = 1, \
+ .info = stac92xx_volknob_info, \
+ .get = stac92xx_volknob_get, \
+ .put = stac92xx_volknob_put, \
+ .private_value = 127, \
+ }
+
static struct snd_kcontrol_new stac9200_mixer[] = {
HDA_CODEC_VOLUME("Master Playback Volume", 0xb, 0, HDA_OUTPUT),
@@ -423,6 +467,7 @@
/* This needs to be generated dynamically based on sequence */
static struct snd_kcontrol_new stac922x_mixer[] = {
STAC_INPUT_SOURCE,
+ STAC_VOLKNOB,
HDA_CODEC_VOLUME("Capture Volume", 0x17, 0x0, HDA_INPUT),
HDA_CODEC_MUTE("Capture Switch", 0x17, 0x0, HDA_INPUT),
HDA_CODEC_VOLUME("Mux Capture Volume", 0x12, 0x0, HDA_OUTPUT),
@@ -432,6 +477,7 @@
/* This needs to be generated dynamically based on sequence */
static struct snd_kcontrol_new stac9227_mixer[] = {
STAC_INPUT_SOURCE,
+ STAC_VOLKNOB,
STAC_ANALOG_LOOPBACK(0xFEB, 0x7EB),
HDA_CODEC_VOLUME("Capture Volume", 0x15, 0x0, HDA_OUTPUT),
HDA_CODEC_MUTE("Capture Switch", 0x1b, 0x0, HDA_OUTPUT),
@@ -440,6 +486,7 @@
static struct snd_kcontrol_new stac927x_mixer[] = {
STAC_INPUT_SOURCE,
+ STAC_VOLKNOB,
STAC_ANALOG_LOOPBACK(0xFEB, 0x7EB),
HDA_CODEC_VOLUME("InMux Capture Volume", 0x15, 0x0, HDA_OUTPUT),
HDA_CODEC_VOLUME("InVol Capture Volume", 0x18, 0x0, HDA_INPUT),
@@ -458,6 +505,7 @@
},
STAC_INPUT_SOURCE,
STAC_ANALOG_LOOPBACK(0xFE0, 0x7E0),
+ STAC_VOLKNOB,
HDA_CODEC_VOLUME("InMux Capture Volume", 0x19, 0x0, HDA_OUTPUT),
HDA_CODEC_VOLUME("InVol Capture Volume", 0x1b, 0x0, HDA_INPUT),
HDA_CODEC_MUTE("ADCMux Capture Switch", 0x1d, 0x0, HDA_OUTPUT),