1. 根目录:
2. sound
3. soc
4. codecs
5. wm8994.h

/*
 * 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

/* OPCLK is also configured with set_dai_sysclk, specify division*10 as rate. */
#define WM8994_SYSCLK_OPCLK 5

#define WM8994_FLL1 1
#define WM8994_FLL2 2

#define WM8994_FLL_SRC_MCLK1  1
#define WM8994_FLL_SRC_MCLK2  2
#define WM8994_FLL_SRC_LRCLK  3
#define WM8994_FLL_SRC_BCLK   4

typedef void (*wm8958_micdet_cb)(u16 status, void *data);

int wm8994_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
		      int micbias, int det, int shrt);
int wm8958_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
		      wm8958_micdet_cb cb, void *cb_data);

#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];
extern const u16 wm8994_reg_defaults[WM8994_CACHE_SIZE];

#endif