8876698406
Support interrupt based microphone bias detection. The WM8994 has two microphone bias supplies, with detection supported on both. Detection using GPIOs together with the standard GPIO based jack framework is already supported via the platform data for the WM8994 core driver. Note that as well as the microphone bias itself the system clock and whichever AIF clock is supplying the system clock will need to be enabled for detection to function. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
29 lines
751 B
C
29 lines
751 B
C
/*
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* wm8994.h -- WM8994 Soc Audio driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _WM8994_H
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#define _WM8994_H
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#include <sound/soc.h>
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extern struct snd_soc_codec_device soc_codec_dev_wm8994;
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extern struct snd_soc_dai wm8994_dai[];
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/* Sources for AIF1/2 SYSCLK - use with set_dai_sysclk() */
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#define WM8994_SYSCLK_MCLK1 1
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#define WM8994_SYSCLK_MCLK2 2
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#define WM8994_SYSCLK_FLL1 3
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#define WM8994_SYSCLK_FLL2 4
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#define WM8994_FLL1 1
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#define WM8994_FLL2 2
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int wm8994_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
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int micbias, int det, int shrt);
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#endif
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