diff options
| author | Maxim Levitsky <maximlevitsky@gmail.com> | 2007-09-03 15:30:26 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2007-10-16 15:59:50 +0200 |
| commit | 6e6b88ffea81d7bc5c5da0b8433b4a21131ae340 (patch) | |
| tree | 3231b311e580bcd388742f2dad8f7e0abcaaae1a /sound/pci/hda | |
| parent | 5f10c4a9a0c02597206fe2f027026ee25d3e07ad (diff) | |
[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>
Diffstat (limited to 'sound/pci/hda')
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index c94775c8a0bf..a2b1dd54e2ef 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -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), |