diff options
| author | Vinod Koul | 2011-02-09 17:14:34 +0100 |
|---|---|---|
| committer | Mark Brown | 2011-02-09 23:32:53 +0100 |
| commit | 36633237be60c0ec88b11e00d5fa22a305563d03 (patch) | |
| tree | 1b2ae4b31f9cd19947e13f7225a67128da66be94 /sound/soc/codecs/sn95031.h | |
| parent | ASoC: mfld_machine: Add support for jack detection (diff) | |
| download | kernel-qcow2-linux-36633237be60c0ec88b11e00d5fa22a305563d03.tar.gz kernel-qcow2-linux-36633237be60c0ec88b11e00d5fa22a305563d03.tar.xz kernel-qcow2-linux-36633237be60c0ec88b11e00d5fa22a305563d03.zip | |
ASoC: sn95031: Add support for reading mic bias
This patch adds support to read the mic bias voltage
when a jack is inserted. It uses ADC to measure.
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Harsha Priya <priya.harsha@intel.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/sn95031.h')
| -rw-r--r-- | sound/soc/codecs/sn95031.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sound/soc/codecs/sn95031.h b/sound/soc/codecs/sn95031.h index 2dbae614bac2..20376d234fb8 100644 --- a/sound/soc/codecs/sn95031.h +++ b/sound/soc/codecs/sn95031.h @@ -96,7 +96,31 @@ #define SN95031_SSR5 0x384 #define SN95031_SSR6 0x385 +/* ADC registers */ + +#define SN95031_ADC1CNTL1 0x1C0 +#define SN95031_ADC_ENBL 0x10 +#define SN95031_ADC_START 0x08 +#define SN95031_ADC1CNTL3 0x1C2 +#define SN95031_ADCTHERM_ENBL 0x04 +#define SN95031_ADCRRDATA_ENBL 0x05 +#define SN95031_STOPBIT_MASK 16 +#define SN95031_ADCTHERM_MASK 4 +#define SN95031_ADC_CHANLS_MAX 15 /* Number of ADC channels */ +#define SN95031_ADC_LOOP_MAX (SN95031_ADC_CHANLS_MAX - 1) +#define SN95031_ADC_NO_LOOP 0x07 #define SN95031_AUDIO_GPIO_CTRL 0x070 + +/* ADC channel code values */ +#define SN95031_AUDIO_DETECT_CODE 0x06 + +/* ADC base addresses */ +#define SN95031_ADC_CHNL_START_ADDR 0x1C5 /* increments by 1 */ +#define SN95031_ADC_DATA_START_ADDR 0x1D4 /* increments by 2 */ +/* multipier to convert to mV */ +#define SN95031_ADC_ONE_LSB_MULTIPLIER 2346 + + struct mfld_jack_data { int intr_id; int micbias_vol; |