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ASoC: Add SOC_DOUBLE_R_SX_TLV control

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This patch is adding a new control which has the following capabilities:
- tlv
- variable data size (for instance, 7 ou 8 bit)
- double mixer
- data range centered around 0

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Acked-by: Liam Girdwood <lrg@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
apatard@mandriva.com
2010-05-15 17:30:01 +02:00
committed by Mark Brown
parent 6a2f1ee1f9
commit b6f4bb383d
2 changed files with 116 additions and 0 deletions
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95
sound/soc/soc-core.c
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@@ -2351,6 +2351,101 @@ int snd_soc_limit_volume(struct snd_soc_codec *codec,
}
EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
/**
* snd_soc_info_volsw_2r_sx - double with tlv and variable data size
* mixer info callback
* @kcontrol: mixer control
* @uinfo: control element information
*
* Returns 0 for success.
*/
int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
int max = mc->max;
int min = mc->min;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = max-min;
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx);
/**
* snd_soc_get_volsw_2r_sx - double with tlv and variable data size
* mixer get callback
* @kcontrol: mixer control
* @uinfo: control element information
*
* Returns 0 for success.
*/
int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned int mask = (1<<mc->shift)-1;
int min = mc->min;
int val = snd_soc_read(codec, mc->reg) & mask;
int valr = snd_soc_read(codec, mc->rreg) & mask;
ucontrol->value.integer.value[0] = ((val & 0xff)-min);
ucontrol->value.integer.value[1] = ((valr & 0xff)-min);
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx);
/**
* snd_soc_put_volsw_2r_sx - double with tlv and variable data size
* mixer put callback
* @kcontrol: mixer control
* @uinfo: control element information
*
* Returns 0 for success.
*/
int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned int mask = (1<<mc->shift)-1;
int min = mc->min;
int ret;
unsigned int val, valr, oval, ovalr;
val = ((ucontrol->value.integer.value[0]+min) & 0xff);
val &= mask;
valr = ((ucontrol->value.integer.value[1]+min) & 0xff);
valr &= mask;
oval = snd_soc_read(codec, mc->reg) & mask;
ovalr = snd_soc_read(codec, mc->rreg) & mask;
ret = 0;
if (oval != val) {
ret = snd_soc_write(codec, mc->reg, val);
if (ret < 0)
return 0;
ret = 1;
}
if (ovalr != valr) {
ret = snd_soc_write(codec, mc->rreg, valr);
if (ret < 0)
return 0;
ret = 1;
}
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx);
/**
* snd_soc_dai_set_sysclk - configure DAI system or master clock.
* @dai: DAI