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ASoC: TWL4030: Add control for selecting codec operation mode

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Add a control for selecting the codec operation mode. TWL4030 codec
has two modes:
- Option 1. Audio only (4 audio DACs)
- Option 2. Voice/Audio (2 audio DACs and voice ADC/DAC)

Control is restricted when a stream is ongoing, since codec's
operation mode cannot be changed on-the-fly.

Signed-off-by: Misael Lopez Cruz <x0052729@ti.com>
Acked-by: Peter Ujflausi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lopez Cruz, Misael 2009-05-18 11:52:55 -05:00 committed by Mark Brown
parent 181da78cd0
commit b74bd40fa4
1 changed files with 47 additions and 0 deletions
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47
sound/soc/codecs/twl4030.c
View file

@ -814,6 +814,48 @@ static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
return err;
}
/* Codec operation modes */
static const char *twl4030_op_modes_texts[] = {
"Option 2 (voice/audio)", "Option 1 (audio)"
};
static const struct soc_enum twl4030_op_modes_enum =
SOC_ENUM_SINGLE(TWL4030_REG_CODEC_MODE, 0,
ARRAY_SIZE(twl4030_op_modes_texts),
twl4030_op_modes_texts);
int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct twl4030_priv *twl4030 = codec->private_data;
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned short val;
unsigned short mask, bitmask;
if (twl4030->configured) {
printk(KERN_ERR "twl4030 operation mode cannot be "
"changed on-the-fly\n");
return -EBUSY;
}
for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
;
if (ucontrol->value.enumerated.item[0] > e->max - 1)
return -EINVAL;
val = ucontrol->value.enumerated.item[0] << e->shift_l;
mask = (bitmask - 1) << e->shift_l;
if (e->shift_l != e->shift_r) {
if (ucontrol->value.enumerated.item[1] > e->max - 1)
return -EINVAL;
val |= ucontrol->value.enumerated.item[1] << e->shift_r;
mask |= (bitmask - 1) << e->shift_r;
}
return snd_soc_update_bits(codec, e->reg, mask, val);
}
/*
* FGAIN volume control:
* from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
@ -895,6 +937,11 @@ static const struct soc_enum twl4030_vibradir_enum =
twl4030_vibradir_texts);
static const struct snd_kcontrol_new twl4030_snd_controls[] = {
/* Codec operation mode control */
SOC_ENUM_EXT("Codec Operation Mode", twl4030_op_modes_enum,
snd_soc_get_enum_double,
snd_soc_put_twl4030_opmode_enum_double),
/* Common playback gain controls */
SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,