Commit 808db4a4 authored by Richard Purdie's avatar Richard Purdie Committed by Jaroslav Kysela
Browse files

[ALSA] ASoC: core and dapm headers 



This patch adds the ASoC and DAPM headers.
Features:-
 o Defines Digital Audio Interface (DAI) API
 o Defines Codec, Platform and Machine API
 o Defines Dynamic Audio Power Management API

Signed-off-by: default avatarRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: default avatarLiam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent 3388c37e

include/sound/ac97_codec.h

+1 −0
Original line number Diff line number Diff line
@@ -425,6 +425,7 @@ struct snd_ac97_build_ops { 


struct snd_ac97_bus_ops {

	void (*reset) (struct snd_ac97 *ac97);

	void (*warm_reset)(struct snd_ac97 *ac97);

	void (*write) (struct snd_ac97 *ac97, unsigned short reg, unsigned short val);

	unsigned short (*read) (struct snd_ac97 *ac97, unsigned short reg);

	void (*wait) (struct snd_ac97 *ac97);

include/sound/soc-dapm.h

0 → 100644
+286 −0
Original line number Diff line number Diff line 
/*

 * linux/sound/soc-dapm.h -- ALSA SoC Dynamic Audio Power Management

 *

 * 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_DAPM_H

#define __LINUX_SND_SOC_DAPM_H



#include <linux/device.h>

#include <linux/types.h>

#include <sound/control.h>

#include <sound/soc.h>



/* widget has no PM register bit */

#define SND_SOC_NOPM	-1



/*

 * SoC dynamic audio power managment

 *

 * We can have upto 4 power domains

 * 	1. Codec domain - VREF, VMID

 *     Usually controlled at codec probe/remove, although can be set

 *     at stream time if power is not needed for sidetone, etc.

 *  2. Platform/Machine domain - physically connected inputs and outputs

 *     Is platform/machine and user action specific, is set in the machine

 *     driver and by userspace e.g when HP are inserted

 *  3. Path domain - Internal codec path mixers

 *     Are automatically set when mixer and mux settings are

 *     changed by the user.

 *  4. Stream domain - DAC's and ADC's.

 *     Enabled when stream playback/capture is started.

 */



/* codec domain */

#define SND_SOC_DAPM_VMID(wname) \

{	.id = snd_soc_dapm_vmid, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0}



/* platform domain */

#define SND_SOC_DAPM_INPUT(wname) \

{	.id = snd_soc_dapm_input, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0}

#define SND_SOC_DAPM_OUTPUT(wname) \

{	.id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0}

#define SND_SOC_DAPM_MIC(wname, wevent) \

{	.id = snd_soc_dapm_mic, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0, .event = wevent, \

	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}

#define SND_SOC_DAPM_HP(wname, wevent) \

{	.id = snd_soc_dapm_hp, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0, .event = wevent, \

	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}

#define SND_SOC_DAPM_SPK(wname, wevent) \

{	.id = snd_soc_dapm_spk, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0, .event = wevent, \

	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}

#define SND_SOC_DAPM_LINE(wname, wevent) \

{	.id = snd_soc_dapm_line, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0, .event = wevent, \

	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}



/* path domain */

#define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\

	 wcontrols, wncontrols) \

{	.id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols}

#define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \

	 wcontrols, wncontrols)\

{	.id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols}

#define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \

{	.id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = NULL, .num_kcontrols = 0}

#define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \

{	.id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1}

#define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \

{	.id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1}



/* path domain with event - event handler must return 0 for success */

#define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \

	wncontrols, wevent, wflags) \

{	.id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \

	.event = wevent, .event_flags = wflags}

#define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \

	wncontrols, wevent, wflags) \

{	.id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \

	.event = wevent, .event_flags = wflags}

#define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \

{	.id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \

	.event = wevent, .event_flags = wflags}

#define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \

	wevent, wflags) \

{	.id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1 \

	.event = wevent, .event_flags = wflags}

#define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \

	wevent, wflags) \

{	.id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \

	.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \

	.event = wevent, .event_flags = wflags}



/* events that are pre and post DAPM */

#define SND_SOC_DAPM_PRE(wname, wevent) \

{	.id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0, .event = wevent, \

	.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}

#define SND_SOC_DAPM_POST(wname, wevent) \

{	.id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \

	.num_kcontrols = 0, .event = wevent, \

	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}



/* stream domain */

#define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \

{	.id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \

	.shift = wshift, .invert = winvert}

#define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \

{	.id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \

	.shift = wshift, .invert = winvert}



/* dapm kcontrol types */

#define SOC_DAPM_SINGLE(xname, reg, shift, mask, invert) \

{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \

	.info = snd_soc_info_volsw, \

	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \

	.private_value =  SOC_SINGLE_VALUE(reg, shift, mask, invert) }

#define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, mask, invert, \

	power) \

{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \

	.info = snd_soc_info_volsw, \

 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \

 	.private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\

 		 ((mask) << 16) | ((invert) << 24) }

#define SOC_DAPM_ENUM(xname, xenum) \

{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \

	.info = snd_soc_info_enum_double, \

 	.get = snd_soc_dapm_get_enum_double, \

 	.put = snd_soc_dapm_put_enum_double, \

  	.private_value = (unsigned long)&xenum }



/* dapm stream operations */

#define SND_SOC_DAPM_STREAM_NOP			0x0

#define SND_SOC_DAPM_STREAM_START		0x1

#define SND_SOC_DAPM_STREAM_STOP		0x2

#define SND_SOC_DAPM_STREAM_SUSPEND		0x4

#define SND_SOC_DAPM_STREAM_RESUME		0x8

#define SND_SOC_DAPM_STREAM_PAUSE_PUSH	0x10

#define SND_SOC_DAPM_STREAM_PAUSE_RELEASE	0x20



/* dapm event types */

#define SND_SOC_DAPM_PRE_PMU	0x1 	/* before widget power up */

#define SND_SOC_DAPM_POST_PMU	0x2		/* after widget power up */

#define SND_SOC_DAPM_PRE_PMD	0x4 	/* before widget power down */

#define SND_SOC_DAPM_POST_PMD	0x8		/* after widget power down */

#define SND_SOC_DAPM_PRE_REG	0x10	/* before audio path setup */

#define SND_SOC_DAPM_POST_REG	0x20	/* after audio path setup */



/* convenience event type detection */

#define SND_SOC_DAPM_EVENT_ON(e)	\

	(e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))

#define SND_SOC_DAPM_EVENT_OFF(e)	\

	(e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))



struct snd_soc_dapm_widget;

enum snd_soc_dapm_type;

struct snd_soc_dapm_path;

struct snd_soc_dapm_pin;



/* dapm controls */

int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol);

int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol);

int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol);

int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol);

int snd_soc_dapm_new_control(struct snd_soc_codec *codec,

	const struct snd_soc_dapm_widget *widget);



/* dapm path setup */

int snd_soc_dapm_connect_input(struct snd_soc_codec *codec,

	const char *sink_name, const char *control_name, const char *src_name);

int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec);

void snd_soc_dapm_free(struct snd_soc_device *socdev);



/* dapm events */

int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream,

	int event);



/* dapm sys fs - used by the core */

int snd_soc_dapm_sys_add(struct device *dev);



/* dapm audio endpoint control */

int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,

	char *pin, int status);

int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec);



/* dapm widget types */

enum snd_soc_dapm_type {

	snd_soc_dapm_input = 0,		/* input pin */

	snd_soc_dapm_output,		/* output pin */

	snd_soc_dapm_mux,			/* selects 1 analog signal from many inputs */

	snd_soc_dapm_mixer,			/* mixes several analog signals together */

	snd_soc_dapm_pga,			/* programmable gain/attenuation (volume) */

	snd_soc_dapm_adc,			/* analog to digital converter */

	snd_soc_dapm_dac,			/* digital to analog converter */

	snd_soc_dapm_micbias,		/* microphone bias (power) */

	snd_soc_dapm_mic,			/* microphone */

	snd_soc_dapm_hp,			/* headphones */

	snd_soc_dapm_spk,			/* speaker */

	snd_soc_dapm_line,			/* line input/output */

	snd_soc_dapm_switch,		/* analog switch */

	snd_soc_dapm_vmid,			/* codec bias/vmid - to minimise pops */

	snd_soc_dapm_pre,			/* machine specific pre widget - exec first */

	snd_soc_dapm_post,			/* machine specific post widget - exec last */

};



/* dapm audio path between two widgets */

struct snd_soc_dapm_path {

	char *name;

	char *long_name;



	/* source (input) and sink (output) widgets */

	struct snd_soc_dapm_widget *source;

	struct snd_soc_dapm_widget *sink;

	struct snd_kcontrol *kcontrol;



	/* status */

	u32 connect:1;	/* source and sink widgets are connected */

	u32 walked:1;	/* path has been walked */



	struct list_head list_source;

	struct list_head list_sink;

	struct list_head list;

};



/* dapm widget */

struct snd_soc_dapm_widget {

	enum snd_soc_dapm_type id;

	char *name;		/* widget name */

	char *sname;	/* stream name */

	struct snd_soc_codec *codec;

	struct list_head list;



	/* dapm control */

	short reg;						/* negative reg = no direct dapm */

	unsigned char shift;			/* bits to shift */

	unsigned int saved_value;		/* widget saved value */

	unsigned int value;				/* widget current value */

	unsigned char power:1;			/* block power status */

	unsigned char invert:1;			/* invert the power bit */

	unsigned char active:1;			/* active stream on DAC, ADC's */

	unsigned char connected:1;		/* connected codec pin */

	unsigned char new:1;			/* cnew complete */

	unsigned char ext:1;			/* has external widgets */

	unsigned char muted:1;			/* muted for pop reduction */

	unsigned char suspend:1;		/* was active before suspend */

	unsigned char pmdown:1;			/* waiting for timeout */



	/* external events */

	unsigned short event_flags;		/* flags to specify event types */

	int (*event)(struct snd_soc_dapm_widget*, int);



	/* kcontrols that relate to this widget */

	int num_kcontrols;

	const struct snd_kcontrol_new *kcontrols;



	/* widget input and outputs */

	struct list_head sources;

	struct list_head sinks;

};



#endif

include/sound/soc.h

0 → 100644
+480 −0

File added.

Preview size limit exceeded, changes collapsed.