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[ALSA] hda-codec - make volume knob, the master volume for sigmatel codecs

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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>
This commit is contained in:
Maxim Levitsky 2007-09-03 15:30:26 +02:00 committed by Jaroslav Kysela
parent 5f10c4a9a0
commit 6e6b88ffea
1 changed files with 48 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
sound/pci/hda/patch_sigmatel.c
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@ -339,6 +339,39 @@ static int stac92xx_aloopback_put(struct snd_kcontrol *kcontrol,
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 @@ static struct hda_verb stac9205_core_init[] = {
.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 @@ static struct snd_kcontrol_new stac925x_mixer[] = {
/* 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 @@ static struct snd_kcontrol_new stac922x_mixer[] = {
/* 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 stac9227_mixer[] = {
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 @@ static struct snd_kcontrol_new stac9205_mixer[] = {
},
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),