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linux-next/sound/soc/codecs/wm8994.h

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ASoC: Add WM8994 CODEC driver The WM8994 is a highly integrated ultra-low power hi-fi audio subsystem designed for smartphones and other portable devices rich in multimedia features. It provides advanced digital mixing facilities enabling low power high quality interconnection of CPU, baseband and other audio sources through flexible digital and analogue routing, and integrates a class W headphone driver and stereo class D speaker drivers. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-01-30 01:47:12 +08:00
/*
* wm8994.h -- WM8994 Soc Audio driver
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _WM8994_H
#define _WM8994_H
#include <sound/soc.h>
/* Sources for AIF1/2 SYSCLK - use with set_dai_sysclk() */
#define WM8994_SYSCLK_MCLK1 1
#define WM8994_SYSCLK_MCLK2 2
#define WM8994_SYSCLK_FLL1 3
#define WM8994_SYSCLK_FLL2 4
ASoC: Implement WM8994 OPCLK support The WM8994 can output a clock derived from its internal SYSCLK, called OPCLK. The rate can be selected as a sysclk, with a division from the SYSCLK rate specified (multiplied by 10 since a division of 5.5 is supported) and the clock can be disabled by specifying a divisor of zero. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-08 10:25:43 +08:00
/* OPCLK is also configured with set_dai_sysclk, specify division*10 as rate. */
#define WM8994_SYSCLK_OPCLK 5
ASoC: Add WM8994 CODEC driver The WM8994 is a highly integrated ultra-low power hi-fi audio subsystem designed for smartphones and other portable devices rich in multimedia features. It provides advanced digital mixing facilities enabling low power high quality interconnection of CPU, baseband and other audio sources through flexible digital and analogue routing, and integrates a class W headphone driver and stereo class D speaker drivers. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-01-30 01:47:12 +08:00
#define WM8994_FLL1 1
#define WM8994_FLL2 2
ASoC: Support FLL input clock selection on WM8994 The WM8994 FLL can be clocked from one of four inputs, the two MCLKs and the LRCLK and BCLK of the AIF associated with the FLL. Allow all four inputs to be used rather than defaulting to MCLK1. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-04-20 11:56:18 +08:00
#define WM8994_FLL_SRC_MCLK1 1
#define WM8994_FLL_SRC_MCLK2 2
#define WM8994_FLL_SRC_LRCLK 3
#define WM8994_FLL_SRC_BCLK 4
ASoC: Add WM8958 microphone detection support The WM8958 contains an advanced accessory detection feature which allows detection of up to seven different impedence levels on the microphone bias output, including detection of video outputs. Since some of the more involved accessory interfaces may involve noticable interactions with external components a simple detection scheme is provided by default with the option to provide custom handling of accessory detect. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-11-26 23:21:09 +08:00
typedef void (*wm8958_micdet_cb)(u16 status, void *data);
ASoC: Implement interrupt based WM8994 microphone detection 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>
2010-03-30 03:57:12 +08:00
int wm8994_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
int micbias, int det, int shrt);
ASoC: Add WM8958 microphone detection support The WM8958 contains an advanced accessory detection feature which allows detection of up to seven different impedence levels on the microphone bias output, including detection of video outputs. Since some of the more involved accessory interfaces may involve noticable interactions with external components a simple detection scheme is provided by default with the option to provide custom handling of accessory detect. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-11-26 23:21:09 +08:00
int wm8958_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
wm8958_micdet_cb cb, void *cb_data);
ASoC: Implement interrupt based WM8994 microphone detection 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>
2010-03-30 03:57:12 +08:00
ASoC: Move WM8994 read/write access data into separate file Makes the WM8994 driver file itself substantially smaller. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-11-17 04:11:40 +08:00
#define WM8994_CACHE_SIZE 1570
struct wm8994_access_mask {
unsigned short readable; /* Mask of readable bits */
unsigned short writable; /* Mask of writable bits */
};
extern const struct wm8994_access_mask wm8994_access_masks[WM8994_CACHE_SIZE];
ASoC: Convert WM8994 to use soc-cache.c cache functions In the process we convert the driver to read registers one at a time when initialising the cache. This has the effect of working around limitations in the sizes of I2C transactions which can be done by some CPUs. Due to the sparseness of the register map the overhead from this should be minimual unless I2C transactions are very expensive to start. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-11-27 01:23:41 +08:00
extern const __devinitdata u16 wm8994_reg_defaults[WM8994_CACHE_SIZE];
ASoC: Move WM8994 read/write access data into separate file Makes the WM8994 driver file itself substantially smaller. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-11-17 04:11:40 +08:00
ASoC: Add WM8994 CODEC driver The WM8994 is a highly integrated ultra-low power hi-fi audio subsystem designed for smartphones and other portable devices rich in multimedia features. It provides advanced digital mixing facilities enabling low power high quality interconnection of CPU, baseband and other audio sources through flexible digital and analogue routing, and integrates a class W headphone driver and stereo class D speaker drivers. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-01-30 01:47:12 +08:00
#endif
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