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[ALSA] ca0106 - Add master volume controls 

Added master volume and switch controls for ca0106 using vmaster.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2008-02-18 13:06:49 +01:00
parent 1c82ed1bc5
commit 49c88b85b5
2 changed files with 52 additions and 0 deletions
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1
sound/pci/Kconfig
View File

@ -162,6 +162,7 @@ config SND_CA0106
depends on SND
select SND_AC97_CODEC
select SND_RAWMIDI
select SND_VMASTER
help
Say Y here to include support for the Sound Blaster Audigy LS
and Live 24bit.

51
sound/pci/ca0106/ca0106_mixer.c
View File

@ -658,11 +658,47 @@ static int __devinit rename_ctl(struct snd_card *card, const char *src, const ch
} \
} while (0)
static __devinitdata
DECLARE_TLV_DB_SCALE(snd_ca0106_master_db_scale, -6375, 50, 1);
static char *slave_vols[] __devinitdata = {
"Analog Front Playback Volume",
"Analog Rear Playback Volume",
"Analog Center/LFE Playback Volume",
"Analog Side Playback Volume",
"IEC958 Front Playback Volume",
"IEC958 Rear Playback Volume",
"IEC958 Center/LFE Playback Volume",
"IEC958 Unknown Playback Volume",
"CAPTURE feedback Playback Volume",
NULL
};
static char *slave_sws[] __devinitdata = {
"Analog Front Playback Switch",
"Analog Rear Playback Switch",
"Analog Center/LFE Playback Switch",
"Analog Side Playback Switch",
"IEC958 Playback Switch",
NULL
};
static void __devinit add_slaves(struct snd_card *card,
struct snd_kcontrol *master, char **list)
{
for (; *list; list++) {
struct snd_kcontrol *slave = ctl_find(card, *list);
if (slave)
snd_ctl_add_slave(master, slave);
}
}
int __devinit snd_ca0106_mixer(struct snd_ca0106 *emu)
{
int err;
struct snd_card *card = emu->card;
char **c;
struct snd_kcontrol *vmaster;
static char *ca0106_remove_ctls[] = {
"Master Mono Playback Switch",
"Master Mono Playback Volume",
@ -719,6 +755,21 @@ int __devinit snd_ca0106_mixer(struct snd_ca0106 *emu)
}
if (emu->details->spi_dac == 1)
ADD_CTLS(emu, snd_ca0106_volume_spi_dac_ctls);
/* Create virtual master controls */
vmaster = snd_ctl_make_virtual_master("Master Playback Volume",
snd_ca0106_master_db_scale);
if (!vmaster)
return -ENOMEM;
add_slaves(card, vmaster, slave_vols);
if (emu->details->spi_dac == 1) {
vmaster = snd_ctl_make_virtual_master("Master Playback Switch",
NULL);
if (!vmaster)
return -ENOMEM;
add_slaves(card, vmaster, slave_sws);
}
return 0;
}