489 lines
15 KiB
C
489 lines
15 KiB
C
/*
|
|
* linux/sound/soc.h -- ALSA SoC Layer
|
|
*
|
|
* Author: Liam Girdwood
|
|
* Created: Aug 11th 2005
|
|
* Copyright: Wolfson Microelectronics. PLC.
|
|
*
|
|
* 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 __LINUX_SND_SOC_H
|
|
#define __LINUX_SND_SOC_H
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/types.h>
|
|
#include <linux/workqueue.h>
|
|
#include <sound/driver.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/control.h>
|
|
#include <sound/ac97_codec.h>
|
|
|
|
#define SND_SOC_VERSION "0.12"
|
|
|
|
/*
|
|
* Convenience kcontrol builders
|
|
*/
|
|
#define SOC_SINGLE_VALUE(reg,shift,mask,invert) ((reg) | ((shift) << 8) |\
|
|
((shift) << 12) | ((mask) << 16) | ((invert) << 24))
|
|
#define SOC_SINGLE_VALUE_EXT(reg,mask,invert) ((reg) | ((mask) << 16) |\
|
|
((invert) << 31))
|
|
#define SOC_SINGLE(xname, reg, shift, mask, invert) \
|
|
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
|
|
.info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
|
|
.put = snd_soc_put_volsw, \
|
|
.private_value = SOC_SINGLE_VALUE(reg, shift, mask, invert) }
|
|
#define SOC_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
|
|
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
|
|
.info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
|
|
.put = snd_soc_put_volsw, \
|
|
.private_value = (reg) | ((shift_left) << 8) | \
|
|
((shift_right) << 12) | ((mask) << 16) | ((invert) << 24) }
|
|
#define SOC_DOUBLE_R(xname, reg_left, reg_right, shift, mask, invert) \
|
|
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
|
|
.info = snd_soc_info_volsw_2r, \
|
|
.get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
|
|
.private_value = (reg_left) | ((shift) << 8) | \
|
|
((mask) << 12) | ((invert) << 20) | ((reg_right) << 24) }
|
|
#define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xtexts) \
|
|
{ .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
|
|
.mask = xmask, .texts = xtexts }
|
|
#define SOC_ENUM_SINGLE(xreg, xshift, xmask, xtexts) \
|
|
SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xtexts)
|
|
#define SOC_ENUM_SINGLE_EXT(xmask, xtexts) \
|
|
{ .mask = xmask, .texts = xtexts }
|
|
#define SOC_ENUM(xname, xenum) \
|
|
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
|
|
.info = snd_soc_info_enum_double, \
|
|
.get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
|
|
.private_value = (unsigned long)&xenum }
|
|
#define SOC_SINGLE_EXT(xname, xreg, xmask, xinvert,\
|
|
xhandler_get, xhandler_put) \
|
|
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
|
|
.info = snd_soc_info_volsw_ext, \
|
|
.get = xhandler_get, .put = xhandler_put, \
|
|
.private_value = SOC_SINGLE_VALUE_EXT(xreg, xmask, xinvert) }
|
|
#define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
|
|
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
|
|
.info = snd_soc_info_bool_ext, \
|
|
.get = xhandler_get, .put = xhandler_put, \
|
|
.private_value = xdata }
|
|
#define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
|
|
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
|
|
.info = snd_soc_info_enum_ext, \
|
|
.get = xhandler_get, .put = xhandler_put, \
|
|
.private_value = (unsigned long)&xenum }
|
|
|
|
/*
|
|
* Digital Audio Interface (DAI) types
|
|
*/
|
|
#define SND_SOC_DAI_AC97 0x1
|
|
#define SND_SOC_DAI_I2S 0x2
|
|
#define SND_SOC_DAI_PCM 0x4
|
|
|
|
/*
|
|
* DAI hardware audio formats
|
|
*/
|
|
#define SND_SOC_DAIFMT_I2S (1 << 0) /* I2S mode */
|
|
#define SND_SOC_DAIFMT_RIGHT_J (1 << 1) /* Right justified mode */
|
|
#define SND_SOC_DAIFMT_LEFT_J (1 << 2) /* Left Justified mode */
|
|
#define SND_SOC_DAIFMT_DSP_A (1 << 3) /* L data msb after FRM or LRC */
|
|
#define SND_SOC_DAIFMT_DSP_B (1 << 4) /* L data msb during FRM or LRC */
|
|
#define SND_SOC_DAIFMT_AC97 (1 << 5) /* AC97 */
|
|
|
|
/*
|
|
* DAI hardware signal inversions
|
|
*/
|
|
#define SND_SOC_DAIFMT_NB_NF (1 << 8) /* normal bit clock + frame */
|
|
#define SND_SOC_DAIFMT_NB_IF (1 << 9) /* normal bclk + inv frm */
|
|
#define SND_SOC_DAIFMT_IB_NF (1 << 10) /* invert bclk + nor frm */
|
|
#define SND_SOC_DAIFMT_IB_IF (1 << 11) /* invert bclk + frm */
|
|
|
|
/*
|
|
* DAI hardware clock masters
|
|
* This is wrt the codec, the inverse is true for the interface
|
|
* i.e. if the codec is clk and frm master then the interface is
|
|
* clk and frame slave.
|
|
*/
|
|
#define SND_SOC_DAIFMT_CBM_CFM (1 << 12) /* codec clk & frm master */
|
|
#define SND_SOC_DAIFMT_CBS_CFM (1 << 13) /* codec clk slave & frm master */
|
|
#define SND_SOC_DAIFMT_CBM_CFS (1 << 14) /* codec clk master & frame slave */
|
|
#define SND_SOC_DAIFMT_CBS_CFS (1 << 15) /* codec clk & frm slave */
|
|
|
|
#define SND_SOC_DAIFMT_FORMAT_MASK 0x00ff
|
|
#define SND_SOC_DAIFMT_INV_MASK 0x0f00
|
|
#define SND_SOC_DAIFMT_CLOCK_MASK 0xf000
|
|
|
|
/*
|
|
* DAI hardware audio direction
|
|
*/
|
|
#define SND_SOC_DAIDIR_PLAYBACK 0x1
|
|
#define SND_SOC_DAIDIR_CAPTURE 0x2
|
|
|
|
/*
|
|
* DAI hardware Time Division Multiplexing (TDM) Slots
|
|
* Left and Right data word positions
|
|
* This is measured in words (sample size) and not bits.
|
|
*/
|
|
#define SND_SOC_DAITDM_LRDW(l,r) ((l << 8) | r)
|
|
|
|
/*
|
|
* DAI hardware clock ratios
|
|
* bit clock can either be a generated by dividing mclk or
|
|
* by multiplying sample rate, hence there are 2 definitions below
|
|
* depending on codec type.
|
|
*/
|
|
/* ratio of sample rate to mclk/sysclk */
|
|
#define SND_SOC_FS_ALL 0xffff /* all mclk supported */
|
|
|
|
/* bit clock dividers */
|
|
#define SND_SOC_FSBD(x) (1 << (x - 1)) /* ratio mclk:bclk */
|
|
#define SND_SOC_FSBD_REAL(x) (ffs(x))
|
|
|
|
/* bit clock ratio to (sample rate * channels * word size) */
|
|
#define SND_SOC_FSBW(x) (1 << (x - 1))
|
|
#define SND_SOC_FSBW_REAL(x) (ffs(x))
|
|
/* all bclk ratios supported */
|
|
#define SND_SOC_FSB_ALL ~0ULL
|
|
|
|
/*
|
|
* DAI hardware flags
|
|
*/
|
|
/* use bfs mclk divider mode (BCLK = MCLK / x) */
|
|
#define SND_SOC_DAI_BFS_DIV 0x1
|
|
/* use bfs rate mulitplier (BCLK = RATE * x)*/
|
|
#define SND_SOC_DAI_BFS_RATE 0x2
|
|
/* use bfs rcw multiplier (BCLK = RATE * CHN * WORD SIZE) */
|
|
#define SND_SOC_DAI_BFS_RCW 0x4
|
|
/* capture and playback can use different clocks */
|
|
#define SND_SOC_DAI_ASYNC 0x8
|
|
|
|
/*
|
|
* AC97 codec ID's bitmask
|
|
*/
|
|
#define SND_SOC_DAI_AC97_ID0 (1 << 0)
|
|
#define SND_SOC_DAI_AC97_ID1 (1 << 1)
|
|
#define SND_SOC_DAI_AC97_ID2 (1 << 2)
|
|
#define SND_SOC_DAI_AC97_ID3 (1 << 3)
|
|
|
|
struct snd_soc_device;
|
|
struct snd_soc_pcm_stream;
|
|
struct snd_soc_ops;
|
|
struct snd_soc_dai_mode;
|
|
struct snd_soc_pcm_runtime;
|
|
struct snd_soc_codec_dai;
|
|
struct snd_soc_cpu_dai;
|
|
struct snd_soc_codec;
|
|
struct snd_soc_machine_config;
|
|
struct soc_enum;
|
|
struct snd_soc_ac97_ops;
|
|
struct snd_soc_clock_info;
|
|
|
|
typedef int (*hw_write_t)(void *,const char* ,int);
|
|
typedef int (*hw_read_t)(void *,char* ,int);
|
|
|
|
extern struct snd_ac97_bus_ops soc_ac97_ops;
|
|
|
|
/* pcm <-> DAI connect */
|
|
void snd_soc_free_pcms(struct snd_soc_device *socdev);
|
|
int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid);
|
|
int snd_soc_register_card(struct snd_soc_device *socdev);
|
|
|
|
/* set runtime hw params */
|
|
int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
|
|
const struct snd_pcm_hardware *hw);
|
|
int snd_soc_get_rate(int rate);
|
|
|
|
/* codec IO */
|
|
#define snd_soc_read(codec, reg) codec->read(codec, reg)
|
|
#define snd_soc_write(codec, reg, value) codec->write(codec, reg, value)
|
|
|
|
/* codec register bit access */
|
|
int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
|
|
unsigned short mask, unsigned short value);
|
|
int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
|
|
unsigned short mask, unsigned short value);
|
|
|
|
int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
|
|
struct snd_ac97_bus_ops *ops, int num);
|
|
void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
|
|
|
|
/*
|
|
*Controls
|
|
*/
|
|
struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
|
|
void *data, char *long_name);
|
|
int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo);
|
|
int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo);
|
|
int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol);
|
|
int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol);
|
|
int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo);
|
|
int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo);
|
|
int snd_soc_info_bool_ext(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo);
|
|
int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol);
|
|
int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol);
|
|
int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo);
|
|
int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol);
|
|
int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol);
|
|
|
|
/* SoC PCM stream information */
|
|
struct snd_soc_pcm_stream {
|
|
char *stream_name;
|
|
unsigned int rate_min; /* min rate */
|
|
unsigned int rate_max; /* max rate */
|
|
unsigned int channels_min; /* min channels */
|
|
unsigned int channels_max; /* max channels */
|
|
unsigned int active:1; /* stream is in use */
|
|
};
|
|
|
|
/* SoC audio ops */
|
|
struct snd_soc_ops {
|
|
int (*startup)(struct snd_pcm_substream *);
|
|
void (*shutdown)(struct snd_pcm_substream *);
|
|
int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
|
|
int (*hw_free)(struct snd_pcm_substream *);
|
|
int (*prepare)(struct snd_pcm_substream *);
|
|
int (*trigger)(struct snd_pcm_substream *, int);
|
|
};
|
|
|
|
/* SoC DAI hardware mode */
|
|
struct snd_soc_dai_mode {
|
|
u16 fmt; /* SND_SOC_DAIFMT_* */
|
|
u16 tdm; /* SND_SOC_HWTDM_* */
|
|
u64 pcmfmt; /* SNDRV_PCM_FMTBIT_* */
|
|
u16 pcmrate; /* SND_SOC_HWRATE_* */
|
|
u16 pcmdir:2; /* SND_SOC_HWDIR_* */
|
|
u16 flags:8; /* hw flags */
|
|
u16 fs; /* mclk to rate divider */
|
|
u64 bfs; /* mclk to bclk dividers */
|
|
unsigned long priv; /* private mode data */
|
|
};
|
|
|
|
/* DAI capabilities */
|
|
struct snd_soc_dai_cap {
|
|
int num_modes; /* number of DAI modes */
|
|
struct snd_soc_dai_mode *mode; /* array of supported DAI modes */
|
|
};
|
|
|
|
/* SoC Codec DAI */
|
|
struct snd_soc_codec_dai {
|
|
char *name;
|
|
int id;
|
|
|
|
/* DAI capabilities */
|
|
struct snd_soc_pcm_stream playback;
|
|
struct snd_soc_pcm_stream capture;
|
|
struct snd_soc_dai_cap caps;
|
|
|
|
/* DAI runtime info */
|
|
struct snd_soc_dai_mode dai_runtime;
|
|
struct snd_soc_ops ops;
|
|
unsigned int (*config_sysclk)(struct snd_soc_codec_dai*,
|
|
struct snd_soc_clock_info *info, unsigned int clk);
|
|
int (*digital_mute)(struct snd_soc_codec *,
|
|
struct snd_soc_codec_dai*, int);
|
|
unsigned int mclk; /* the audio master clock */
|
|
unsigned int pll_in; /* the PLL input clock */
|
|
unsigned int pll_out; /* the PLL output clock */
|
|
unsigned int clk_div; /* internal clock divider << 1 (for fractions) */
|
|
unsigned int active;
|
|
unsigned char pop_wait:1;
|
|
|
|
/* DAI private data */
|
|
void *private_data;
|
|
};
|
|
|
|
/* SoC CPU DAI */
|
|
struct snd_soc_cpu_dai {
|
|
|
|
/* DAI description */
|
|
char *name;
|
|
unsigned int id;
|
|
unsigned char type;
|
|
|
|
/* DAI callbacks */
|
|
int (*probe)(struct platform_device *pdev);
|
|
void (*remove)(struct platform_device *pdev);
|
|
int (*suspend)(struct platform_device *pdev,
|
|
struct snd_soc_cpu_dai *cpu_dai);
|
|
int (*resume)(struct platform_device *pdev,
|
|
struct snd_soc_cpu_dai *cpu_dai);
|
|
unsigned int (*config_sysclk)(struct snd_soc_cpu_dai *cpu_dai,
|
|
struct snd_soc_clock_info *info, unsigned int clk);
|
|
|
|
/* DAI capabilities */
|
|
struct snd_soc_pcm_stream capture;
|
|
struct snd_soc_pcm_stream playback;
|
|
struct snd_soc_dai_cap caps;
|
|
|
|
/* DAI runtime info */
|
|
struct snd_soc_dai_mode dai_runtime;
|
|
struct snd_soc_ops ops;
|
|
struct snd_pcm_runtime *runtime;
|
|
unsigned char active:1;
|
|
unsigned int mclk;
|
|
void *dma_data;
|
|
|
|
/* DAI private data */
|
|
void *private_data;
|
|
};
|
|
|
|
/* SoC Audio Codec */
|
|
struct snd_soc_codec {
|
|
char *name;
|
|
struct module *owner;
|
|
struct mutex mutex;
|
|
|
|
/* callbacks */
|
|
int (*dapm_event)(struct snd_soc_codec *codec, int event);
|
|
|
|
/* runtime */
|
|
struct snd_card *card;
|
|
struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
|
|
unsigned int active;
|
|
unsigned int pcm_devs;
|
|
void *private_data;
|
|
|
|
/* codec IO */
|
|
void *control_data; /* codec control (i2c/3wire) data */
|
|
unsigned int (*read)(struct snd_soc_codec *, unsigned int);
|
|
int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
|
|
hw_write_t hw_write;
|
|
hw_read_t hw_read;
|
|
void *reg_cache;
|
|
short reg_cache_size;
|
|
short reg_cache_step;
|
|
|
|
/* dapm */
|
|
struct list_head dapm_widgets;
|
|
struct list_head dapm_paths;
|
|
unsigned int dapm_state;
|
|
unsigned int suspend_dapm_state;
|
|
struct delayed_work delayed_work;
|
|
|
|
/* codec DAI's */
|
|
struct snd_soc_codec_dai *dai;
|
|
unsigned int num_dai;
|
|
};
|
|
|
|
/* codec device */
|
|
struct snd_soc_codec_device {
|
|
int (*probe)(struct platform_device *pdev);
|
|
int (*remove)(struct platform_device *pdev);
|
|
int (*suspend)(struct platform_device *pdev, pm_message_t state);
|
|
int (*resume)(struct platform_device *pdev);
|
|
};
|
|
|
|
/* SoC platform interface */
|
|
struct snd_soc_platform {
|
|
char *name;
|
|
|
|
int (*probe)(struct platform_device *pdev);
|
|
int (*remove)(struct platform_device *pdev);
|
|
int (*suspend)(struct platform_device *pdev,
|
|
struct snd_soc_cpu_dai *cpu_dai);
|
|
int (*resume)(struct platform_device *pdev,
|
|
struct snd_soc_cpu_dai *cpu_dai);
|
|
|
|
/* pcm creation and destruction */
|
|
int (*pcm_new)(struct snd_card *, struct snd_soc_codec_dai *,
|
|
struct snd_pcm *);
|
|
void (*pcm_free)(struct snd_pcm *);
|
|
|
|
/* platform stream ops */
|
|
struct snd_pcm_ops *pcm_ops;
|
|
};
|
|
|
|
/* SoC machine DAI configuration, glues a codec and cpu DAI together */
|
|
struct snd_soc_dai_link {
|
|
char *name; /* Codec name */
|
|
char *stream_name; /* Stream name */
|
|
|
|
/* DAI */
|
|
struct snd_soc_codec_dai *codec_dai;
|
|
struct snd_soc_cpu_dai *cpu_dai;
|
|
u32 flags; /* DAI config preference flags */
|
|
|
|
/* codec/machine specific init - e.g. add machine controls */
|
|
int (*init)(struct snd_soc_codec *codec);
|
|
|
|
/* audio sysclock configuration */
|
|
unsigned int (*config_sysclk)(struct snd_soc_pcm_runtime *rtd,
|
|
struct snd_soc_clock_info *info);
|
|
};
|
|
|
|
/* SoC machine */
|
|
struct snd_soc_machine {
|
|
char *name;
|
|
|
|
int (*probe)(struct platform_device *pdev);
|
|
int (*remove)(struct platform_device *pdev);
|
|
|
|
/* the pre and post PM functions are used to do any PM work before and
|
|
* after the codec and DAI's do any PM work. */
|
|
int (*suspend_pre)(struct platform_device *pdev, pm_message_t state);
|
|
int (*suspend_post)(struct platform_device *pdev, pm_message_t state);
|
|
int (*resume_pre)(struct platform_device *pdev);
|
|
int (*resume_post)(struct platform_device *pdev);
|
|
|
|
/* machine stream operations */
|
|
struct snd_soc_ops *ops;
|
|
|
|
/* CPU <--> Codec DAI links */
|
|
struct snd_soc_dai_link *dai_link;
|
|
int num_links;
|
|
};
|
|
|
|
/* SoC Device - the audio subsystem */
|
|
struct snd_soc_device {
|
|
struct device *dev;
|
|
struct snd_soc_machine *machine;
|
|
struct snd_soc_platform *platform;
|
|
struct snd_soc_codec *codec;
|
|
struct snd_soc_codec_device *codec_dev;
|
|
struct delayed_work delayed_work;
|
|
void *codec_data;
|
|
};
|
|
|
|
/* runtime channel data */
|
|
struct snd_soc_pcm_runtime {
|
|
struct snd_soc_codec_dai *codec_dai;
|
|
struct snd_soc_cpu_dai *cpu_dai;
|
|
struct snd_soc_device *socdev;
|
|
};
|
|
|
|
/* enumerated kcontrol */
|
|
struct soc_enum {
|
|
unsigned short reg;
|
|
unsigned short reg2;
|
|
unsigned char shift_l;
|
|
unsigned char shift_r;
|
|
unsigned int mask;
|
|
const char **texts;
|
|
void *dapm;
|
|
};
|
|
|
|
/* clocking configuration data */
|
|
struct snd_soc_clock_info {
|
|
unsigned int rate;
|
|
unsigned int fs;
|
|
unsigned int bclk_master;
|
|
};
|
|
|
|
#endif
|