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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-15 18:14:34 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-16 15:56:54 +0000 |
| commit | 37f88e8407f75fc6ced5cefb633c314556de3ad1 (patch) | |
| tree | 95b4bd8d967f4c229becaad4b5dc503be6f46448 /include/sound | |
| parent | 73b34ead7429789f35eea147a3e185abd61c7d94 (diff) | |
| download | linux-37f88e8407f75fc6ced5cefb633c314556de3ad1.tar.gz linux-37f88e8407f75fc6ced5cefb633c314556de3ad1.tar.bz2 linux-37f88e8407f75fc6ced5cefb633c314556de3ad1.zip | |
ASoC: Initial WM8903 microphone bias and short detection
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>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/wm8903.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/sound/wm8903.h b/include/sound/wm8903.h index 00458589fe85..22b66a76febd 100644 --- a/include/sound/wm8903.h +++ b/include/sound/wm8903.h @@ -15,6 +15,28 @@ #define WM8903_GPIO_NO_CONFIG 0x8000 /* + * 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 */ + +/* * R116 (0x74) - GPIO Control 1 */ #define WM8903_GP1_FN_MASK 0x1F00 /* GP1_FN - [12:8] */ @@ -210,6 +232,13 @@ #define WM8903_GP5_DB_WIDTH 1 /* GP5_DB */ struct wm8903_platform_data { + /* Default register value for R6 (Mic bias), used to configure + * microphone detection. In conjunction with gpio_cfg this + * can be used to route the microphone status signals out onto + * the GPIOs for use with snd_soc_jack_add_gpios(). + */ + u16 micdet_cfg; + u32 gpio_cfg[5]; /* Default register values for GPIO pin mux */ }; |