Commit f2644a2c authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Add WM8960 CODEC driver 



The WM8960 is a low power, high quality stereo codec designed for
portable digital audio applications.

Stereo class D speaker drivers provide 1W per channel into 8W loads.
Guaranteed low leakage, excellent PSRR and pop/click suppression
mechanisms enable direct battery connection for the speaker supply.

The device also integrates a complete microphone interface and a stereo
headphone driver. External component requirements are drastically
reduced as no separate microphone, speaker or headphone amplifiers are
required. Advanced on-chip digital signal processing performs automatic
level control for the microphone or line input.

Stereo 24-bit sigma-delta ADCs and DACs are used with low power
over-sampling digital interpolation and decimation filters and a
flexible digital audio interface.

The master clock can be input directly or generated internally by an
onboard PLL, supporting most commonly-used clocking schemes.

This driver was originally written by Liam Girdwood, with substantial
subsequent additions and updates for feature completeness and changes in
the ASoC framework from me.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent a8205320

sound/soc/codecs/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ config SND_SOC_ALL_CODECS 
	select SND_SOC_WM8753 if SND_SOC_I2C_AND_SPI

	select SND_SOC_WM8900 if I2C

	select SND_SOC_WM8903 if I2C

	select SND_SOC_WM8960 if I2C

	select SND_SOC_WM8971 if I2C

	select SND_SOC_WM8988 if SND_SOC_I2C_AND_SPI

	select SND_SOC_WM8990 if I2C
@@ -139,6 +140,9 @@ config SND_SOC_WM8900 
config SND_SOC_WM8903

	tristate



config SND_SOC_WM8960

	tristate



config SND_SOC_WM8971

	tristate

sound/soc/codecs/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ snd-soc-wm8750-objs := wm8750.o 
snd-soc-wm8753-objs := wm8753.o

snd-soc-wm8900-objs := wm8900.o

snd-soc-wm8903-objs := wm8903.o

snd-soc-wm8960-objs := wm8960.o

snd-soc-wm8971-objs := wm8971.o

snd-soc-wm8988-objs := wm8988.o

snd-soc-wm8990-objs := wm8990.o
@@ -56,6 +57,7 @@ obj-$(CONFIG_SND_SOC_WM8753) += snd-soc-wm8753.o 
obj-$(CONFIG_SND_SOC_WM8900)	+= snd-soc-wm8900.o

obj-$(CONFIG_SND_SOC_WM8903)	+= snd-soc-wm8903.o

obj-$(CONFIG_SND_SOC_WM8971)	+= snd-soc-wm8971.o

obj-$(CONFIG_SND_SOC_WM8960)	+= snd-soc-wm8960.o

obj-$(CONFIG_SND_SOC_WM8988)	+= snd-soc-wm8988.o

obj-$(CONFIG_SND_SOC_WM8990)	+= snd-soc-wm8990.o

obj-$(CONFIG_SND_SOC_WM8991)	+= snd-soc-wm8991.o

sound/soc/codecs/wm8960.c

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sound/soc/codecs/wm8960.h

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/*

 * wm8960.h  --  WM8960 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 _WM8960_H

#define _WM8960_H



/* WM8960 register space */





#define WM8960_CACHEREGNUM 	56



#define WM8960_LINVOL		0x0

#define WM8960_RINVOL		0x1

#define WM8960_LOUT1		0x2

#define WM8960_ROUT1		0x3

#define WM8960_CLOCK1		0x4

#define WM8960_DACCTL1		0x5

#define WM8960_DACCTL2		0x6

#define WM8960_IFACE1		0x7

#define WM8960_CLOCK2		0x8

#define WM8960_IFACE2		0x9

#define WM8960_LDAC		0xa

#define WM8960_RDAC		0xb



#define WM8960_RESET		0xf

#define WM8960_3D		0x10

#define WM8960_ALC1		0x11

#define WM8960_ALC2		0x12

#define WM8960_ALC3		0x13

#define WM8960_NOISEG		0x14

#define WM8960_LADC		0x15

#define WM8960_RADC		0x16

#define WM8960_ADDCTL1		0x17

#define WM8960_ADDCTL2		0x18

#define WM8960_POWER1		0x19

#define WM8960_POWER2		0x1a

#define WM8960_ADDCTL3		0x1b

#define WM8960_APOP1		0x1c

#define WM8960_APOP2		0x1d



#define WM8960_LINPATH		0x20

#define WM8960_RINPATH		0x21

#define WM8960_LOUTMIX		0x22



#define WM8960_ROUTMIX		0x25

#define WM8960_MONOMIX1		0x26

#define WM8960_MONOMIX2		0x27

#define WM8960_LOUT2		0x28

#define WM8960_ROUT2		0x29

#define WM8960_MONO		0x2a

#define WM8960_INBMIX1		0x2b

#define WM8960_INBMIX2		0x2c

#define WM8960_BYPASS1		0x2d

#define WM8960_BYPASS2		0x2e

#define WM8960_POWER3		0x2f

#define WM8960_ADDCTL4		0x30

#define WM8960_CLASSD1		0x31



#define WM8960_CLASSD3		0x33

#define WM8960_PLL1		0x34

#define WM8960_PLL2		0x35

#define WM8960_PLL3		0x36

#define WM8960_PLL4		0x37





/*

 * WM8960 Clock dividers

 */

#define WM8960_SYSCLKDIV 		0

#define WM8960_DACDIV			1

#define WM8960_OPCLKDIV			2

#define WM8960_DCLKDIV			3

#define WM8960_TOCLKSEL			4

#define WM8960_SYSCLKSEL		5



#define WM8960_SYSCLK_DIV_1		(0 << 1)

#define WM8960_SYSCLK_DIV_2		(2 << 1)



#define WM8960_SYSCLK_MCLK		(0 << 0)

#define WM8960_SYSCLK_PLL		(1 << 0)



#define WM8960_DAC_DIV_1		(0 << 3)

#define WM8960_DAC_DIV_1_5		(1 << 3)

#define WM8960_DAC_DIV_2		(2 << 3)

#define WM8960_DAC_DIV_3		(3 << 3)

#define WM8960_DAC_DIV_4		(4 << 3)

#define WM8960_DAC_DIV_5_5		(5 << 3)

#define WM8960_DAC_DIV_6		(6 << 3)



#define WM8960_DCLK_DIV_1_5		(0 << 6)

#define WM8960_DCLK_DIV_2		(1 << 6)

#define WM8960_DCLK_DIV_3		(2 << 6)

#define WM8960_DCLK_DIV_4		(3 << 6)

#define WM8960_DCLK_DIV_6		(4 << 6)

#define WM8960_DCLK_DIV_8		(5 << 6)

#define WM8960_DCLK_DIV_12		(6 << 6)

#define WM8960_DCLK_DIV_16		(7 << 6)



#define WM8960_TOCLK_F19		(0 << 1)

#define WM8960_TOCLK_F21		(1 << 1)



#define WM8960_OPCLK_DIV_1		(0 << 0)

#define WM8960_OPCLK_DIV_2		(1 << 0)

#define WM8960_OPCLK_DIV_3		(2 << 0)

#define WM8960_OPCLK_DIV_4		(3 << 0)

#define WM8960_OPCLK_DIV_5_5		(4 << 0)

#define WM8960_OPCLK_DIV_6		(5 << 0)



extern struct snd_soc_dai wm8960_dai;

extern struct snd_soc_codec_device soc_codec_dev_wm8960;



#define WM8960_DRES_400R 0

#define WM8960_DRES_200R 1

#define WM8960_DRES_600R 2

#define WM8960_DRES_150R 3

#define WM8960_DRES_MAX  3



struct wm8960_data {

	int dres;

};



#endif