1. 根目录:
2. sound
3. soc
4. codecs
5. wm8974.h

/*
 * wm8974.h  --  WM8974 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 _WM8974_H
#define _WM8974_H

/* WM8974 register space */

#define WM8974_RESET		0x0
#define WM8974_POWER1		0x1
#define WM8974_POWER2		0x2
#define WM8974_POWER3		0x3
#define WM8974_IFACE		0x4
#define WM8974_COMP		0x5
#define WM8974_CLOCK		0x6
#define WM8974_ADD		0x7
#define WM8974_GPIO		0x8
#define WM8974_DAC		0xa
#define WM8974_DACVOL		0xb
#define WM8974_ADC		0xe
#define WM8974_ADCVOL		0xf
#define WM8974_EQ1		0x12
#define WM8974_EQ2		0x13
#define WM8974_EQ3		0x14
#define WM8974_EQ4		0x15
#define WM8974_EQ5		0x16
#define WM8974_DACLIM1		0x18
#define WM8974_DACLIM2		0x19
#define WM8974_NOTCH1		0x1b
#define WM8974_NOTCH2		0x1c
#define WM8974_NOTCH3		0x1d
#define WM8974_NOTCH4		0x1e
#define WM8974_ALC1		0x20
#define WM8974_ALC2		0x21
#define WM8974_ALC3		0x22
#define WM8974_NGATE		0x23
#define WM8974_PLLN		0x24
#define WM8974_PLLK1		0x25
#define WM8974_PLLK2		0x26
#define WM8974_PLLK3		0x27
#define WM8974_ATTEN		0x28
#define WM8974_INPUT		0x2c
#define WM8974_INPPGA		0x2d
#define WM8974_ADCBOOST		0x2f
#define WM8974_OUTPUT		0x31
#define WM8974_SPKMIX		0x32
#define WM8974_SPKVOL		0x36
#define WM8974_MONOMIX		0x38

#define WM8974_CACHEREGNUM 	57

/* Clock divider Id's */
#define WM8974_OPCLKDIV		0
#define WM8974_MCLKDIV		1
#define WM8974_BCLKDIV		2

/* PLL Out dividers */
#define WM8974_OPCLKDIV_1	(0 << 4)
#define WM8974_OPCLKDIV_2	(1 << 4)
#define WM8974_OPCLKDIV_3	(2 << 4)
#define WM8974_OPCLKDIV_4	(3 << 4)

/* BCLK clock dividers */
#define WM8974_BCLKDIV_1	(0 << 2)
#define WM8974_BCLKDIV_2	(1 << 2)
#define WM8974_BCLKDIV_4	(2 << 2)
#define WM8974_BCLKDIV_8	(3 << 2)
#define WM8974_BCLKDIV_16	(4 << 2)
#define WM8974_BCLKDIV_32	(5 << 2)

/* MCLK clock dividers */
#define WM8974_MCLKDIV_1	(0 << 5)
#define WM8974_MCLKDIV_1_5	(1 << 5)
#define WM8974_MCLKDIV_2	(2 << 5)
#define WM8974_MCLKDIV_3	(3 << 5)
#define WM8974_MCLKDIV_4	(4 << 5)
#define WM8974_MCLKDIV_6	(5 << 5)
#define WM8974_MCLKDIV_8	(6 << 5)
#define WM8974_MCLKDIV_12	(7 << 5)

#endif