diff options
| author | Daniel Mack <daniel@caiaq.org> | 2008-12-03 11:44:17 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2008-12-03 12:40:45 +0000 |
| commit | 6f2a974bfc8d3be7a30674c71e2fef003b39a8d2 (patch) | |
| tree | e0a981c23de2e36e4dd44c7b93db7d962228588e /sound/soc/codecs/tlv320aic3x.c | |
| parent | 4b4fffdd9d179677cb030e97869286b62df25adc (diff) | |
ASoC: tlv320aic3x: headset/button press support
- Add aic3x_set_headset_detection() function to define the headset
detection mode for tlv32aic3x chips
- added aic3x_button_pressed()
- Read from the real-time registers in aic3x_headset_detected() to query
headset presence without an occured interrupt
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/tlv320aic3x.c')
| -rw-r--r-- | sound/soc/codecs/tlv320aic3x.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index 0f4067bdd4a3..341e1adc9167 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -1018,14 +1018,41 @@ int aic3x_get_gpio(struct snd_soc_codec *codec, int gpio) } EXPORT_SYMBOL_GPL(aic3x_get_gpio); +void aic3x_set_headset_detection(struct snd_soc_codec *codec, int detect, + int headset_debounce, int button_debounce) +{ + u8 val; + + val = ((detect & AIC3X_HEADSET_DETECT_MASK) + << AIC3X_HEADSET_DETECT_SHIFT) | + ((headset_debounce & AIC3X_HEADSET_DEBOUNCE_MASK) + << AIC3X_HEADSET_DEBOUNCE_SHIFT) | + ((button_debounce & AIC3X_BUTTON_DEBOUNCE_MASK) + << AIC3X_BUTTON_DEBOUNCE_SHIFT); + + if (detect & AIC3X_HEADSET_DETECT_MASK) + val |= AIC3X_HEADSET_DETECT_ENABLED; + + aic3x_write(codec, AIC3X_HEADSET_DETECT_CTRL_A, val); +} +EXPORT_SYMBOL_GPL(aic3x_set_headset_detection); + int aic3x_headset_detected(struct snd_soc_codec *codec) { u8 val; - aic3x_read(codec, AIC3X_RT_IRQ_FLAGS_REG, &val); - return (val >> 2) & 1; + aic3x_read(codec, AIC3X_HEADSET_DETECT_CTRL_B, &val); + return (val >> 4) & 1; } EXPORT_SYMBOL_GPL(aic3x_headset_detected); +int aic3x_button_pressed(struct snd_soc_codec *codec) +{ + u8 val; + aic3x_read(codec, AIC3X_HEADSET_DETECT_CTRL_B, &val); + return (val >> 5) & 1; +} +EXPORT_SYMBOL_GPL(aic3x_button_pressed); + #define AIC3X_RATES SNDRV_PCM_RATE_8000_96000 #define AIC3X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) |