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[ALSA] hda-codec - add support for analog loopback to STAC9204/9205/922x/927x

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The analog loopback routes the sound just before it enters ADC0
to output of DAC0.

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 15:29:37 +02:00 committed by Jaroslav Kysela
parent 0fb87bb474
commit 5f10c4a9a0
1 changed files with 58 additions and 0 deletions
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58
sound/pci/hda/patch_sigmatel.c
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@ -147,6 +147,7 @@ struct sigmatel_spec {
/* i/o switches */
unsigned int io_switch[2];
unsigned int clfe_swap;
unsigned int aloopback;
struct hda_pcm pcm_rec[2]; /* PCM information */
@ -296,6 +297,49 @@ static int stac92xx_mux_enum_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e
spec->mux_nids[adc_idx], &spec->cur_mux[adc_idx]);
}
#define stac92xx_aloopback_info snd_ctl_boolean_mono_info
static int stac92xx_aloopback_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
struct sigmatel_spec *spec = codec->spec;
ucontrol->value.integer.value[0] = spec->aloopback;
return 0;
}
static int stac92xx_aloopback_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
struct sigmatel_spec *spec = codec->spec;
unsigned int dac_mode;
if (spec->aloopback == ucontrol->value.integer.value[0])
return 0;
spec->aloopback = ucontrol->value.integer.value[0];
dac_mode = snd_hda_codec_read(codec, codec->afg, 0,
kcontrol->private_value & 0xFFFF, 0x0);
if (spec->aloopback) {
snd_hda_power_up(codec);
dac_mode |= 0x40;
} else {
snd_hda_power_down(codec);
dac_mode &= ~0x40;
}
snd_hda_codec_write_cache(codec, codec->afg, 0,
kcontrol->private_value >> 16, dac_mode);
return 1;
}
static struct hda_verb stac9200_core_init[] = {
/* set dac0mux for dac converter */
{ 0x07, AC_VERB_SET_CONNECT_SEL, 0x00},
@ -346,6 +390,17 @@ static struct hda_verb stac9205_core_init[] = {
.put = stac92xx_mux_enum_put, \
}
#define STAC_ANALOG_LOOPBACK(verb_read,verb_write) \
{ \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.name = "Analog Loopback", \
.count = 1, \
.info = stac92xx_aloopback_info, \
.get = stac92xx_aloopback_get, \
.put = stac92xx_aloopback_put, \
.private_value = verb_read | (verb_write << 16), \
}
static struct snd_kcontrol_new stac9200_mixer[] = {
HDA_CODEC_VOLUME("Master Playback Volume", 0xb, 0, HDA_OUTPUT),
@ -377,6 +432,7 @@ 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_ANALOG_LOOPBACK(0xFEB, 0x7EB),
HDA_CODEC_VOLUME("Capture Volume", 0x15, 0x0, HDA_OUTPUT),
HDA_CODEC_MUTE("Capture Switch", 0x1b, 0x0, HDA_OUTPUT),
{ } /* end */
@ -384,6 +440,7 @@ static struct snd_kcontrol_new stac9227_mixer[] = {
static struct snd_kcontrol_new stac927x_mixer[] = {
STAC_INPUT_SOURCE,
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),
HDA_CODEC_MUTE("ADCMux Capture Switch", 0x1b, 0x0, HDA_OUTPUT),
@ -400,6 +457,7 @@ static struct snd_kcontrol_new stac9205_mixer[] = {
.put = stac92xx_dmux_enum_put,
},
STAC_INPUT_SOURCE,
STAC_ANALOG_LOOPBACK(0xFE0, 0x7E0),
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),