diff options
| author | Peter Ujfalusi <peter.ujfalusi@nokia.com> | 2008-12-09 12:35:46 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2008-12-09 10:49:21 +0000 |
| commit | e8ff9c417ad6e8f7ef253e36f9d6e22dc2aa2512 (patch) | |
| tree | a0525ec25eb3f50cf2ed9af4cfd3eb0dfa838ef4 /sound/soc | |
| parent | 44c5587035fbbdd368a3d5d8d11997d43758078a (diff) | |
ASoC: TWL4030: Add DAPM event handler for output MUX selection
DAPM event handler is set to filter out invalid MUX settings
for certain outputs.
Earpiece:
- 0 = Off
- 1 = DACL1
- 2 = DACL2
- 3 = *** Invalid ***
- 4 = DACR1
PreDriveL/R:
- 0 = Off/Off
- 1 = DACL1/DACR1
- 2 = DACL2/DACR2
- 3 = *** Invalid/Invalid ***
- 4 = DACR2/DACL2
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/twl4030.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 4293ec7b5021..9d1078325c3d 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -190,6 +190,30 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) } +static int outmixer_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + int ret = 0; + int val; + + switch (e->reg) { + case TWL4030_REG_PREDL_CTL: + case TWL4030_REG_PREDR_CTL: + case TWL4030_REG_EAR_CTL: + val = w->value >> e->shift_l; + if (val == 3) { + printk(KERN_WARNING + "Invalid MUX setting for register 0x%02x (%d)\n", + e->reg, val); + ret = -1; + } + break; + } + + return ret; +} + /* * Some of the gain controls in TWL (mostly those which are associated with * the outputs) are implemented in an interesting way: |