cregit-Linux how code gets into the kernel

Release 4.12 include/sound/soc-dapm.h

Directory: include/sound
/*
 * 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/types.h>
#include <sound/control.h>
#include <sound/soc-topology.h>
#include <sound/asoc.h>

struct device;

/* widget has no PM register bit */

#define SND_SOC_NOPM	-1

/*
 * SoC dynamic audio power management
 *
 * We can have up to 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, .kcontrol_news = NULL, \
        .num_kcontrols = 0}

/* platform domain */

#define SND_SOC_DAPM_SIGGEN(wname) \
{       .id = snd_soc_dapm_siggen, .name = wname, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM }

#define SND_SOC_DAPM_SINK(wname) \
{       .id = snd_soc_dapm_sink, .name = wname, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM }

#define SND_SOC_DAPM_INPUT(wname) \
{       .id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM }

#define SND_SOC_DAPM_OUTPUT(wname) \
{       .id = snd_soc_dapm_output, .name = wname, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM }

#define SND_SOC_DAPM_MIC(wname, wevent) \
{       .id = snd_soc_dapm_mic, .name = wname, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM, .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, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM, .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, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM, .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, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
        .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}


#define SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert) \
	.reg = wreg, .mask = 1, .shift = wshift, \
        .on_val = winvert ? 0 : 1, .off_val = winvert ? 1 : 0

/* path domain */

#define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\
	 wcontrols, wncontrols) \
{       .id = snd_soc_dapm_pga, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}

#define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\
	 wcontrols, wncontrols) \
{       .id = snd_soc_dapm_out_drv, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}

#define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \
	 wcontrols, wncontrols)\
{       .id = snd_soc_dapm_mixer, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}

#define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \
	 wcontrols, wncontrols)\
{       .id = snd_soc_dapm_mixer_named_ctl, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
/* DEPRECATED: use SND_SOC_DAPM_SUPPLY */

#define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \
{       .id = snd_soc_dapm_micbias, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = NULL, .num_kcontrols = 0}

#define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \
{       .id = snd_soc_dapm_switch, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = 1}

#define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
{       .id = snd_soc_dapm_mux, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = 1}

#define SND_SOC_DAPM_DEMUX(wname, wreg, wshift, winvert, wcontrols) \
{       .id = snd_soc_dapm_demux, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = 1}

/* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */

#define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
	 wcontrols) \
{       .id = snd_soc_dapm_pga, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}

#define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \
	 wcontrols)\
{       .id = snd_soc_dapm_mixer, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}

#define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \
	 wcontrols)\
{       .id = snd_soc_dapm_mixer_named_ctl, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}

/* 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, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
        .event = wevent, .event_flags = wflags}

#define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \
	wncontrols, wevent, wflags) \
{       .id = snd_soc_dapm_out_drv, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = 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, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
        .event = wevent, .event_flags = wflags}

#define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
	wcontrols, wncontrols, wevent, wflags) \
{       .id = snd_soc_dapm_mixer, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, \
        .num_kcontrols = wncontrols, .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, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = 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, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = 1, \
        .event = wevent, .event_flags = wflags}

/* additional sequencing control within an event type */

#define SND_SOC_DAPM_PGA_S(wname, wsubseq, wreg, wshift, winvert, \
	wevent, wflags) \
{       .id = snd_soc_dapm_pga, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .event = wevent, .event_flags = wflags, \
        .subseq = wsubseq}

#define SND_SOC_DAPM_SUPPLY_S(wname, wsubseq, wreg, wshift, winvert, wevent, \
	wflags)	\
{       .id = snd_soc_dapm_supply, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .event = wevent, .event_flags = wflags, .subseq = wsubseq}

/* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */

#define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
	wevent, wflags) \
{       .id = snd_soc_dapm_pga, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
        .event = wevent, .event_flags = wflags}

#define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
	wevent, wflags) \
{       .id = snd_soc_dapm_mixer, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
        .event = wevent, .event_flags = wflags}

#define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \
	wcontrols, wevent, wflags) \
{       .id = snd_soc_dapm_mixer, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
        .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, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM, .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, .kcontrol_news = NULL, \
        .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
        .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}

/* stream domain */

#define SND_SOC_DAPM_AIF_IN(wname, stname, wslot, wreg, wshift, winvert) \
{       .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }

#define SND_SOC_DAPM_AIF_IN_E(wname, stname, wslot, wreg, wshift, winvert, \
			      wevent, wflags)				\
{       .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .event = wevent, .event_flags = wflags }

#define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \
{       .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }

#define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wslot, wreg, wshift, winvert, \
			     wevent, wflags)				\
{       .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .event = wevent, .event_flags = wflags }

#define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
{       .id = snd_soc_dapm_dac, .name = wname, .sname = stname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert) }

#define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
			   wevent, wflags)				\
{       .id = snd_soc_dapm_dac, .name = wname, .sname = stname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .event = wevent, .event_flags = wflags}


#define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
{       .id = snd_soc_dapm_adc, .name = wname, .sname = stname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }

#define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
			   wevent, wflags)				\
{       .id = snd_soc_dapm_adc, .name = wname, .sname = stname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .event = wevent, .event_flags = wflags}

#define SND_SOC_DAPM_CLOCK_SUPPLY(wname) \
{       .id = snd_soc_dapm_clock_supply, .name = wname, \
        .reg = SND_SOC_NOPM, .event = dapm_clock_event, \
        .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }

/* generic widgets */

#define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
{       .id = wid, .name = wname, .kcontrol_news = NULL, .num_kcontrols = 0, \
        .reg = wreg, .shift = wshift, .mask = wmask, \
        .on_val = won_val, .off_val = woff_val, }

#define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
{       .id = snd_soc_dapm_supply, .name = wname, \
        SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
        .event = wevent, .event_flags = wflags}

#define SND_SOC_DAPM_REGULATOR_SUPPLY(wname, wdelay, wflags)	    \
{       .id = snd_soc_dapm_regulator_supply, .name = wname, \
        .reg = SND_SOC_NOPM, .shift = wdelay, .event = dapm_regulator_event, \
        .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD, \
        .on_val = wflags}


/* dapm kcontrol types */

#define SOC_DAPM_DOUBLE(xname, reg, lshift, rshift, max, 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_DOUBLE_VALUE(reg, lshift, rshift, max, invert, 0) }

#define SOC_DAPM_DOUBLE_R(xname, lreg, rreg, shift, max, 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_DOUBLE_R_VALUE(lreg, rreg, shift, max, invert) }

#define SOC_DAPM_SINGLE(xname, reg, shift, max, 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, max, invert, 0) }

#define SOC_DAPM_SINGLE_AUTODISABLE(xname, reg, shift, max, 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, max, invert, 1) }

#define SOC_DAPM_SINGLE_VIRT(xname, max) \
	SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0)

#define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
        .info = snd_soc_info_volsw, \
        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
        .tlv.p = (tlv_array), \
        .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
        .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }

#define SOC_DAPM_SINGLE_TLV_AUTODISABLE(xname, reg, shift, max, invert, tlv_array) \
{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
        .info = snd_soc_info_volsw, \
        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
        .tlv.p = (tlv_array), \
        .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
        .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) }

#define SOC_DAPM_SINGLE_TLV_VIRT(xname, max, tlv_array) \
	SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0, tlv_array)

#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 }

#define SOC_DAPM_ENUM_EXT(xname, xenum, xget, xput) \
{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
        .info = snd_soc_info_enum_double, \
        .get = xget, \
        .put = xput, \
        .private_value = (unsigned long)&xenum }

#define SOC_DAPM_PIN_SWITCH(xname) \
{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
        .info = snd_soc_dapm_info_pin_switch, \
        .get = snd_soc_dapm_get_pin_switch, \
        .put = snd_soc_dapm_put_pin_switch, \
        .private_value = (unsigned long)xname }

/* 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 */

#define SND_SOC_DAPM_WILL_PMU   0x40    
/* called at start of sequence */

#define SND_SOC_DAPM_WILL_PMD   0x80    
/* called at start of sequence */

#define SND_SOC_DAPM_PRE_POST_PMD \
				(SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)

/* 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))

/* regulator widget flags */

#define SND_SOC_DAPM_REGULATOR_BYPASS     0x1     
/* bypass when disabled */

struct snd_soc_dapm_widget;
enum snd_soc_dapm_type;
struct snd_soc_dapm_path;
struct snd_soc_dapm_pin;
struct snd_soc_dapm_route;
struct snd_soc_dapm_context;
struct regulator;
struct snd_soc_dapm_widget_list;
struct snd_soc_dapm_update;
enum snd_soc_dapm_direction;

int dapm_regulator_event(struct snd_soc_dapm_widget *w,
			 struct snd_kcontrol *kcontrol, int event);
int dapm_clock_event(struct snd_soc_dapm_widget *w,
			 struct snd_kcontrol *kcontrol, int event);

/* 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_info_pin_switch(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo);
int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *uncontrol);
int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *uncontrol);
int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
	const struct snd_soc_dapm_widget *widget,
	int num);
struct snd_soc_dapm_widget *snd_soc_dapm_new_control(
		struct snd_soc_dapm_context *dapm,
		const struct snd_soc_dapm_widget *widget);
int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
				 struct snd_soc_dai *dai);
int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card);
void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card);
int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
			 const struct snd_soc_pcm_stream *params,
			 unsigned int num_params,
			 struct snd_soc_dapm_widget *source,
			 struct snd_soc_dapm_widget *sink);

/* dapm path setup */
int snd_soc_dapm_new_widgets(struct snd_soc_card *card);
void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
			    const struct snd_soc_dapm_route *route, int num);
int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
			    const struct snd_soc_dapm_route *route, int num);
int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
			     const struct snd_soc_dapm_route *route, int num);
void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w);
void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm);

/* dapm events */
void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
	int event);
void snd_soc_dapm_shutdown(struct snd_soc_card *card);

/* external DAPM widget events */
int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm,
		struct snd_kcontrol *kcontrol, int connect,
		struct snd_soc_dapm_update *update);
int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm,
		struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e,
		struct snd_soc_dapm_update *update);

/* dapm sys fs - used by the core */
extern struct attribute *soc_dapm_dev_attrs[];
void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
				struct dentry *parent);

/* dapm audio pin control and status */
int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm,
			    const char *pin);
int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm,
				     const char *pin);
int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm,
			     const char *pin);
int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm,
				      const char *pin);
int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin);
int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm,
				 const char *pin);
int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
				const char *pin);
int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm);
int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm);
int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
				  const char *pin);
int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm,
					   const char *pin);
int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
				const char *pin);
unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol);

/* Mostly internal - should not normally be used */
void dapm_mark_endpoints_dirty(struct snd_soc_card *card);

/* dapm path query */
int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
	struct snd_soc_dapm_widget_list **list,
	bool (*custom_stop_condition)(struct snd_soc_dapm_widget *,
				      enum snd_soc_dapm_direction));

struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm(
	struct snd_kcontrol *kcontrol);

struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget(
		struct snd_kcontrol *kcontrol);

int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm,
	enum snd_soc_bias_level level);

/* 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_demux,			/* connects the input to one of multiple outputs */
	
snd_soc_dapm_mixer,			/* mixes several analog signals together */
	
snd_soc_dapm_mixer_named_ctl,		/* mixer with named controls */
	
snd_soc_dapm_pga,			/* programmable gain/attenuation (volume) */
	
snd_soc_dapm_out_drv,			/* output driver */
	
snd_soc_dapm_adc,			/* analog to digital converter */
	
snd_soc_dapm_dac,			/* digital to analog converter */
	
snd_soc_dapm_micbias,		/* microphone bias (power) - DEPRECATED: use snd_soc_dapm_supply */
	
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 */
	
snd_soc_dapm_supply,		/* power/clock supply */
	
snd_soc_dapm_regulator_supply,	/* external regulator */
	
snd_soc_dapm_clock_supply,	/* external clock */
	
snd_soc_dapm_aif_in,		/* audio interface input */
	
snd_soc_dapm_aif_out,		/* audio interface output */
	
snd_soc_dapm_siggen,		/* signal generator */
	
snd_soc_dapm_sink,
	
snd_soc_dapm_dai_in,		/* link to DAI structure */
	
snd_soc_dapm_dai_out,
	
snd_soc_dapm_dai_link,		/* link between two DAI structures */
	
snd_soc_dapm_kcontrol,		/* Auto-disabled kcontrol */
};


enum snd_soc_dapm_subclass {
	
SND_SOC_DAPM_CLASS_INIT		= 0,
	
SND_SOC_DAPM_CLASS_RUNTIME	= 1,
};

/*
 * DAPM audio route definition.
 *
 * Defines an audio route originating at source via control and finishing
 * at sink.
 */

struct snd_soc_dapm_route {
	
const char *sink;
	
const char *control;
	
const char *source;

	/* Note: currently only supported for links where source is a supply */
	
int (*connected)(struct snd_soc_dapm_widget *source,
			 struct snd_soc_dapm_widget *sink);
};

/* dapm audio path between two widgets */

struct snd_soc_dapm_path {
	
const char *name;

	/*
         * source (input) and sink (output) widgets
         * The union is for convience, since it is a lot nicer to type
         * p->source, rather than p->node[SND_SOC_DAPM_DIR_IN]
         */
	union {
		struct {
			
struct snd_soc_dapm_widget *source;
			
struct snd_soc_dapm_widget *sink;
		};
		
struct snd_soc_dapm_widget *node[2];
	};

	/* status */
	
u32 connect:1;	/* source and sink widgets are connected */
	
u32 walking:1;  /* path is in the process of being walked */
	
u32 weak:1;	/* path ignored for power management */
	
u32 is_supply:1;	/* At least one of the connected widgets is a supply */

	
int (*connected)(struct snd_soc_dapm_widget *source,
			 struct snd_soc_dapm_widget *sink);

	
struct list_head list_node[2];
	
struct list_head list_kcontrol;
	
struct list_head list;
};

/* dapm widget */

struct snd_soc_dapm_widget {
	
enum snd_soc_dapm_type id;
	
const char *name;		/* widget name */
	
const char *sname;	/* stream name */
	
struct list_head list;
	
struct snd_soc_dapm_context *dapm;

	
void *priv;				/* widget specific data */
	
struct regulator *regulator;		/* attached regulator */
	
const struct snd_soc_pcm_stream *params; /* params for dai links */
	
unsigned int num_params; /* number of params for dai links */
	
unsigned int params_select; /* currently selected param for dai link */

	/* dapm control */
	
int reg;				/* negative reg = no direct dapm */
	
unsigned char shift;			/* bits to shift */
	
unsigned int mask;			/* non-shifted mask */
	
unsigned int on_val;			/* on state value */
	
unsigned int off_val;			/* off state value */
	
unsigned char power:1;			/* block power status */
	
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 force:1;			/* force state */
	
unsigned char ignore_suspend:1;         /* kept enabled over suspend */
	
unsigned char new_power:1;		/* power from this run */
	
unsigned char power_checked:1;		/* power checked this run */
	
unsigned char is_supply:1;		/* Widget is a supply type widget */
	
unsigned char is_ep:2;			/* Widget is a endpoint type widget */
	
int subseq;				/* sort within widget type */

	
int (*power_check)(struct snd_soc_dapm_widget *w);

	/* external events */
	
unsigned short event_flags;		/* flags to specify event types */
	
int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);

	/* kcontrols that relate to this widget */
	
int num_kcontrols;
	
const struct snd_kcontrol_new *kcontrol_news;
	
struct snd_kcontrol **kcontrols;
	
struct snd_soc_dobj dobj;

	/* widget input and output edges */
	
struct list_head edges[2];

	/* used during DAPM updates */
	
struct list_head work_list;
	
struct list_head power_list;
	
struct list_head dirty;
	
int endpoints[2];

	
struct clk *clk;
};


struct snd_soc_dapm_update {
	
struct snd_kcontrol *kcontrol;
	
int reg;
	
int mask;
	
int val;
	
int reg2;
	
int mask2;
	
int val2;
	
bool has_second_set;
};


struct snd_soc_dapm_wcache {
	
struct snd_soc_dapm_widget *widget;
};

/* DAPM context */

struct snd_soc_dapm_context {
	
enum snd_soc_bias_level bias_level;
	
unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
	/* Go to BIAS_OFF in suspend if the DAPM context is idle */
	
unsigned int suspend_bias_off:1;
	
void (*seq_notifier)(struct snd_soc_dapm_context *,
			     enum snd_soc_dapm_type, int);

	
struct device *dev; /* from parent - for debug */
	
struct snd_soc_component *component; /* parent component */
	
struct snd_soc_card *card; /* parent card */

	/* used during DAPM updates */
	
enum snd_soc_bias_level target_bias_level;
	
struct list_head list;

	
int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
	
int (*set_bias_level)(struct snd_soc_dapm_context *dapm,
			      enum snd_soc_bias_level level);

	
struct snd_soc_dapm_wcache path_sink_cache;
	
struct snd_soc_dapm_wcache path_source_cache;

#ifdef CONFIG_DEBUG_FS
	
struct dentry *debugfs_dapm;
#endif
};

/* A list of widgets associated with an object, typically a snd_kcontrol */

struct snd_soc_dapm_widget_list {
	
int num_widgets;
	
struct snd_soc_dapm_widget *widgets[0];
};


struct snd_soc_dapm_stats {
	
int power_checks;
	
int path_checks;
	
int neighbour_checks;
};

/**
 * snd_soc_dapm_init_bias_level() - Initialize DAPM bias level
 * @dapm: The DAPM context to initialize
 * @level: The DAPM level to initialize to
 *
 * This function only sets the driver internal state of the DAPM level and will
 * not modify the state of the device. Hence it should not be used during normal
 * operation, but only to synchronize the internal state to the device state.
 * E.g. during driver probe to set the DAPM level to the one corresponding with
 * the power-on reset state of the device.
 *
 * To change the DAPM state of the device use snd_soc_dapm_set_bias_level().
 */

static inline void snd_soc_dapm_init_bias_level( struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) { dapm->bias_level = level; }

Contributors

PersonTokensPropCommitsCommitProp
Lars-Peter Clausen22100.00%1100.00%
Total22100.00%1100.00%

/** * snd_soc_dapm_get_bias_level() - Get current DAPM bias level * @dapm: The context for which to get the bias level * * Returns: The current bias level of the passed DAPM context. */
static inline enum snd_soc_bias_level snd_soc_dapm_get_bias_level( struct snd_soc_dapm_context *dapm) { return dapm->bias_level; }

Contributors

PersonTokensPropCommitsCommitProp
Lars-Peter Clausen18100.00%1100.00%
Total18100.00%1100.00%

enum snd_soc_dapm_direction { SND_SOC_DAPM_DIR_IN, SND_SOC_DAPM_DIR_OUT }; #define SND_SOC_DAPM_DIR_TO_EP(x) BIT(x) #define SND_SOC_DAPM_EP_SOURCE SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_IN) #define SND_SOC_DAPM_EP_SINK SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_OUT) /** * snd_soc_dapm_widget_for_each_sink_path - Iterates over all paths in the * specified direction of a widget * @w: The widget * @dir: Whether to iterate over the paths where the specified widget is the * incoming or outgoing widgets * @p: The path iterator variable */ #define snd_soc_dapm_widget_for_each_path(w, dir, p) \ list_for_each_entry(p, &w->edges[dir], list_node[dir]) /** * snd_soc_dapm_widget_for_each_sink_path_safe - Iterates over all paths in the * specified direction of a widget * @w: The widget * @dir: Whether to iterate over the paths where the specified widget is the * incoming or outgoing widgets * @p: The path iterator variable * @next_p: Temporary storage for the next path * * This function works like snd_soc_dapm_widget_for_each_sink_path, expect that * it is safe to remove the current path from the list while iterating */ #define snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) \ list_for_each_entry_safe(p, next_p, &w->edges[dir], list_node[dir]) /** * snd_soc_dapm_widget_for_each_sink_path - Iterates over all paths leaving a * widget * @w: The widget * @p: The path iterator variable */ #define snd_soc_dapm_widget_for_each_sink_path(w, p) \ snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_IN, p) /** * snd_soc_dapm_widget_for_each_source_path - Iterates over all paths leading to * a widget * @w: The widget * @p: The path iterator variable */ #define snd_soc_dapm_widget_for_each_source_path(w, p) \ snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_OUT, p) #endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Richard Purdie68727.32%10.87%
Mark Brown66626.48%4438.26%
Lars-Peter Clausen38415.27%2320.00%
Liam Girdwood2068.19%1513.04%
Guennadi Liakhovetski1044.14%10.87%
Charles Keepax843.34%43.48%
Jarkko Nikula542.15%32.61%
Chen-Yu Tsai481.91%32.61%
Ian Molton411.63%10.87%
Margarita Olaya Cabrera411.63%10.87%
Stephen Warren341.35%43.48%
Ola Lilja331.31%10.87%
Subhransu S. Prusty281.11%21.74%
Philipp Zabel180.72%10.87%
Piotr Stankiewicz170.68%10.87%
Nikesh Oswal140.56%10.87%
Mythri P K110.44%10.87%
Graeme Gregory100.40%10.87%
Vinod Koul100.40%10.87%
Jyri Sarha90.36%10.87%
Arnaud Patard50.20%10.87%
Takashi Iwai50.20%10.87%
Paul Gortmaker30.12%10.87%
John Keeping20.08%10.87%
Lu Guanqun10.04%10.87%
Total2515100.00%115100.00%
Directory: include/sound
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