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ASoC: Initial WM8903 microphone bias and short detection

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Provide support for WM8903 microphone presence and short detection
using the GPIOs to route out a logic signal suitable for handling
using snd_soc_jack_add_gpios() on the processor GPIOs.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown
2010-03-15 18:14:34 +00:00
parent 73b34ead74
commit 37f88e8407
3 changed files with 45 additions and 30 deletions
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22
sound/soc/codecs/wm8903.h
View File

@@ -172,28 +172,6 @@ extern struct snd_soc_codec_device soc_codec_dev_wm8903;
#define WM8903_VMID_RES_250K 3
#define WM8903_VMID_RES_5K 4
/*
* R6 (0x06) - Mic Bias Control 0
*/
#define WM8903_MICDET_HYST_ENA 0x0080 /* MICDET_HYST_ENA */
#define WM8903_MICDET_HYST_ENA_MASK 0x0080 /* MICDET_HYST_ENA */
#define WM8903_MICDET_HYST_ENA_SHIFT 7 /* MICDET_HYST_ENA */
#define WM8903_MICDET_HYST_ENA_WIDTH 1 /* MICDET_HYST_ENA */
#define WM8903_MICDET_THR_MASK 0x0070 /* MICDET_THR - [6:4] */
#define WM8903_MICDET_THR_SHIFT 4 /* MICDET_THR - [6:4] */
#define WM8903_MICDET_THR_WIDTH 3 /* MICDET_THR - [6:4] */
#define WM8903_MICSHORT_THR_MASK 0x000C /* MICSHORT_THR - [3:2] */
#define WM8903_MICSHORT_THR_SHIFT 2 /* MICSHORT_THR - [3:2] */
#define WM8903_MICSHORT_THR_WIDTH 2 /* MICSHORT_THR - [3:2] */
#define WM8903_MICDET_ENA 0x0002 /* MICDET_ENA */
#define WM8903_MICDET_ENA_MASK 0x0002 /* MICDET_ENA */
#define WM8903_MICDET_ENA_SHIFT 1 /* MICDET_ENA */
#define WM8903_MICDET_ENA_WIDTH 1 /* MICDET_ENA */
#define WM8903_MICBIAS_ENA 0x0001 /* MICBIAS_ENA */
#define WM8903_MICBIAS_ENA_MASK 0x0001 /* MICBIAS_ENA */
#define WM8903_MICBIAS_ENA_SHIFT 0 /* MICBIAS_ENA */
#define WM8903_MICBIAS_ENA_WIDTH 1 /* MICBIAS_ENA */
/*
* R8 (0x08) - Analogue DAC 0
*/