64a648c220
In preparation for Dynamic PCM (AKA DSP) support. This adds a callback function to be called at the completion of a DAPM stream event. This can be used by DSP components to perform calculations based on DAPM graphs after completion of stream events. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
541 lines
23 KiB
C
541 lines
23 KiB
C
/*
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* linux/sound/soc-dapm.h -- ALSA SoC Dynamic Audio Power Management
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*
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* Author: Liam Girdwood
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* Created: Aug 11th 2005
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* Copyright: Wolfson Microelectronics. PLC.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __LINUX_SND_SOC_DAPM_H
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#define __LINUX_SND_SOC_DAPM_H
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#include <linux/device.h>
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#include <linux/types.h>
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#include <sound/control.h>
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/* widget has no PM register bit */
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#define SND_SOC_NOPM -1
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/*
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* SoC dynamic audio power management
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*
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* We can have up to 4 power domains
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* 1. Codec domain - VREF, VMID
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* Usually controlled at codec probe/remove, although can be set
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* at stream time if power is not needed for sidetone, etc.
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* 2. Platform/Machine domain - physically connected inputs and outputs
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* Is platform/machine and user action specific, is set in the machine
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* driver and by userspace e.g when HP are inserted
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* 3. Path domain - Internal codec path mixers
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* Are automatically set when mixer and mux settings are
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* changed by the user.
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* 4. Stream domain - DAC's and ADC's.
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* Enabled when stream playback/capture is started.
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*/
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/* codec domain */
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#define SND_SOC_DAPM_VMID(wname) \
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{ .id = snd_soc_dapm_vmid, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0}
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/* platform domain */
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#define SND_SOC_DAPM_INPUT(wname) \
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{ .id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM }
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#define SND_SOC_DAPM_OUTPUT(wname) \
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{ .id = snd_soc_dapm_output, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM }
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#define SND_SOC_DAPM_MIC(wname, wevent) \
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{ .id = snd_soc_dapm_mic, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
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.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
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#define SND_SOC_DAPM_HP(wname, wevent) \
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{ .id = snd_soc_dapm_hp, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
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.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
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#define SND_SOC_DAPM_SPK(wname, wevent) \
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{ .id = snd_soc_dapm_spk, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
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.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
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#define SND_SOC_DAPM_LINE(wname, wevent) \
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{ .id = snd_soc_dapm_line, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
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.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
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/* path domain */
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#define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\
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wcontrols, wncontrols) \
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{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
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#define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\
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wcontrols, wncontrols) \
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{ .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
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#define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \
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wcontrols, wncontrols)\
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{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
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#define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \
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wcontrols, wncontrols)\
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{ .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
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.shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
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.num_kcontrols = wncontrols}
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#define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \
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{ .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = NULL, .num_kcontrols = 0}
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#define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \
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{ .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
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#define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
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{ .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
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#define SND_SOC_DAPM_VIRT_MUX(wname, wreg, wshift, winvert, wcontrols) \
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{ .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
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#define SND_SOC_DAPM_VALUE_MUX(wname, wreg, wshift, winvert, wcontrols) \
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{ .id = snd_soc_dapm_value_mux, .name = wname, .reg = wreg, \
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.shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
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.num_kcontrols = 1}
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/* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
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#define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
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wcontrols) \
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{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
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#define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \
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wcontrols)\
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{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
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#define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \
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wcontrols)\
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{ .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
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.shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
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.num_kcontrols = ARRAY_SIZE(wcontrols)}
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/* path domain with event - event handler must return 0 for success */
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#define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \
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wncontrols, wevent, wflags) \
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{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
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.event = wevent, .event_flags = wflags}
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#define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \
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wncontrols, wevent, wflags) \
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{ .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
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.event = wevent, .event_flags = wflags}
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#define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
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wncontrols, wevent, wflags) \
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{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
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.event = wevent, .event_flags = wflags}
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#define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
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wcontrols, wncontrols, wevent, wflags) \
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{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, \
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.num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
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#define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \
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{ .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = NULL, .num_kcontrols = 0, \
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.event = wevent, .event_flags = wflags}
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#define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
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.event = wevent, .event_flags = wflags}
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#define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
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.event = wevent, .event_flags = wflags}
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#define SND_SOC_DAPM_VIRT_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
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.event = wevent, .event_flags = wflags}
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/* additional sequencing control within an event type */
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#define SND_SOC_DAPM_PGA_S(wname, wsubseq, wreg, wshift, winvert, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .event = wevent, .event_flags = wflags, \
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.subseq = wsubseq}
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#define SND_SOC_DAPM_SUPPLY_S(wname, wsubseq, wreg, wshift, winvert, wevent, \
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wflags) \
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{ .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \
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.shift = wshift, .invert = winvert, .event = wevent, \
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.event_flags = wflags, .subseq = wsubseq}
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/* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
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#define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
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.event = wevent, .event_flags = wflags}
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#define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
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.event = wevent, .event_flags = wflags}
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#define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \
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wcontrols, wevent, wflags) \
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{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
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.invert = winvert, .kcontrol_news = wcontrols, \
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.num_kcontrols = ARRAY_SIZE(wcontrols), .event = wevent, .event_flags = wflags}
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/* events that are pre and post DAPM */
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#define SND_SOC_DAPM_PRE(wname, wevent) \
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{ .id = snd_soc_dapm_pre, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
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.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
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#define SND_SOC_DAPM_POST(wname, wevent) \
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{ .id = snd_soc_dapm_post, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
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.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
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/* stream domain */
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#define SND_SOC_DAPM_AIF_IN(wname, stname, wslot, wreg, wshift, winvert) \
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{ .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
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.reg = wreg, .shift = wshift, .invert = winvert }
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#define SND_SOC_DAPM_AIF_IN_E(wname, stname, wslot, wreg, wshift, winvert, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
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.reg = wreg, .shift = wshift, .invert = winvert, \
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.event = wevent, .event_flags = wflags }
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#define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \
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{ .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
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.reg = wreg, .shift = wshift, .invert = winvert }
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#define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wslot, wreg, wshift, winvert, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
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.reg = wreg, .shift = wshift, .invert = winvert, \
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.event = wevent, .event_flags = wflags }
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#define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
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{ .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
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.shift = wshift, .invert = winvert}
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#define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
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.shift = wshift, .invert = winvert, \
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.event = wevent, .event_flags = wflags}
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#define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
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{ .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
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.shift = wshift, .invert = winvert}
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#define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
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wevent, wflags) \
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{ .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
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.shift = wshift, .invert = winvert, \
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.event = wevent, .event_flags = wflags}
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/* generic widgets */
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#define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
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{ .id = wid, .name = wname, .kcontrol_news = NULL, .num_kcontrols = 0, \
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.reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \
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.on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \
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.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
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#define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
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{ .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \
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.shift = wshift, .invert = winvert, .event = wevent, \
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.event_flags = wflags}
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/* dapm kcontrol types */
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#define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_soc_info_volsw, \
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.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
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.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
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#define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_soc_info_volsw, \
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.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
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.tlv.p = (tlv_array), \
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.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
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.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
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#define SOC_DAPM_ENUM(xname, xenum) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_soc_info_enum_double, \
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.get = snd_soc_dapm_get_enum_double, \
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.put = snd_soc_dapm_put_enum_double, \
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.private_value = (unsigned long)&xenum }
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#define SOC_DAPM_ENUM_VIRT(xname, xenum) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_soc_info_enum_double, \
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.get = snd_soc_dapm_get_enum_virt, \
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.put = snd_soc_dapm_put_enum_virt, \
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.private_value = (unsigned long)&xenum }
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#define SOC_DAPM_ENUM_EXT(xname, xenum, xget, xput) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_soc_info_enum_double, \
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.get = xget, \
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.put = xput, \
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.private_value = (unsigned long)&xenum }
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#define SOC_DAPM_VALUE_ENUM(xname, xenum) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_soc_info_enum_double, \
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.get = snd_soc_dapm_get_value_enum_double, \
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.put = snd_soc_dapm_put_value_enum_double, \
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.private_value = (unsigned long)&xenum }
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#define SOC_DAPM_PIN_SWITCH(xname) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
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.info = snd_soc_dapm_info_pin_switch, \
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.get = snd_soc_dapm_get_pin_switch, \
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.put = snd_soc_dapm_put_pin_switch, \
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.private_value = (unsigned long)xname }
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/* dapm stream operations */
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#define SND_SOC_DAPM_STREAM_NOP 0x0
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#define SND_SOC_DAPM_STREAM_START 0x1
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#define SND_SOC_DAPM_STREAM_STOP 0x2
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#define SND_SOC_DAPM_STREAM_SUSPEND 0x4
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#define SND_SOC_DAPM_STREAM_RESUME 0x8
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#define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10
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#define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20
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/* dapm event types */
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#define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */
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#define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */
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#define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */
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#define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */
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#define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */
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#define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */
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#define SND_SOC_DAPM_PRE_POST_PMD \
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(SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
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/* convenience event type detection */
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#define SND_SOC_DAPM_EVENT_ON(e) \
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(e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
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#define SND_SOC_DAPM_EVENT_OFF(e) \
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(e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
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struct snd_soc_dapm_widget;
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enum snd_soc_dapm_type;
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struct snd_soc_dapm_path;
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struct snd_soc_dapm_pin;
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struct snd_soc_dapm_route;
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struct snd_soc_dapm_context;
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int dapm_reg_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event);
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/* dapm controls */
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int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo);
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int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *uncontrol);
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int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *uncontrol);
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int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
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const struct snd_soc_dapm_widget *widget);
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int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
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const struct snd_soc_dapm_widget *widget,
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int num);
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/* dapm path setup */
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int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm);
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void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
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int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
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const struct snd_soc_dapm_route *route, int num);
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int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
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const struct snd_soc_dapm_route *route, int num);
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/* dapm events */
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int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd,
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const char *stream, int event);
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void snd_soc_dapm_shutdown(struct snd_soc_card *card);
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/* dapm sys fs - used by the core */
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int snd_soc_dapm_sys_add(struct device *dev);
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void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
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struct dentry *parent);
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/* dapm audio pin control and status */
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int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm,
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const char *pin);
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int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm,
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const char *pin);
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int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin);
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int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
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const char *pin);
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int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm);
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int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
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const char *pin);
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int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
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const char *pin);
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/* dapm widget types */
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enum snd_soc_dapm_type {
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snd_soc_dapm_input = 0, /* input pin */
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snd_soc_dapm_output, /* output pin */
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snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */
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snd_soc_dapm_virt_mux, /* virtual version of snd_soc_dapm_mux */
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snd_soc_dapm_value_mux, /* selects 1 analog signal from many inputs */
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snd_soc_dapm_mixer, /* mixes several analog signals together */
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snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */
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snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */
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snd_soc_dapm_out_drv, /* output driver */
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snd_soc_dapm_adc, /* analog to digital converter */
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snd_soc_dapm_dac, /* digital to analog converter */
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snd_soc_dapm_micbias, /* microphone bias (power) */
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snd_soc_dapm_mic, /* microphone */
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snd_soc_dapm_hp, /* headphones */
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snd_soc_dapm_spk, /* speaker */
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snd_soc_dapm_line, /* line input/output */
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snd_soc_dapm_switch, /* analog switch */
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snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */
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snd_soc_dapm_pre, /* machine specific pre widget - exec first */
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snd_soc_dapm_post, /* machine specific post widget - exec last */
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snd_soc_dapm_supply, /* power/clock supply */
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snd_soc_dapm_aif_in, /* audio interface input */
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snd_soc_dapm_aif_out, /* audio interface output */
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};
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/*
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* DAPM audio route definition.
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*
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* Defines an audio route originating at source via control and finishing
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* at sink.
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*/
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struct snd_soc_dapm_route {
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const char *sink;
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const char *control;
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const char *source;
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/* Note: currently only supported for links where source is a supply */
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int (*connected)(struct snd_soc_dapm_widget *source,
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struct snd_soc_dapm_widget *sink);
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};
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/* dapm audio path between two widgets */
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struct snd_soc_dapm_path {
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char *name;
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char *long_name;
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|
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/* source (input) and sink (output) widgets */
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struct snd_soc_dapm_widget *source;
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struct snd_soc_dapm_widget *sink;
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struct snd_kcontrol *kcontrol;
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|
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/* status */
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u32 connect:1; /* source and sink widgets are connected */
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u32 walked:1; /* path has been walked */
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u32 weak:1; /* path ignored for power management */
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|
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int (*connected)(struct snd_soc_dapm_widget *source,
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struct snd_soc_dapm_widget *sink);
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|
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struct list_head list_source;
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struct list_head list_sink;
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struct list_head list;
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};
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|
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/* dapm widget */
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struct snd_soc_dapm_widget {
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enum snd_soc_dapm_type id;
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char *name; /* widget name */
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|
char *sname; /* stream name */
|
|
struct snd_soc_codec *codec;
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|
struct snd_soc_platform *platform;
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|
struct list_head list;
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|
struct snd_soc_dapm_context *dapm;
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|
|
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/* dapm control */
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short reg; /* negative reg = no direct dapm */
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unsigned char shift; /* bits to shift */
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unsigned int saved_value; /* widget saved value */
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|
unsigned int value; /* widget current value */
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|
unsigned int mask; /* non-shifted mask */
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|
unsigned int on_val; /* on state value */
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|
unsigned int off_val; /* off state value */
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|
unsigned char power:1; /* block power status */
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|
unsigned char invert:1; /* invert the power bit */
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|
unsigned char active:1; /* active stream on DAC, ADC's */
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|
unsigned char connected:1; /* connected codec pin */
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|
unsigned char new:1; /* cnew complete */
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|
unsigned char ext:1; /* has external widgets */
|
|
unsigned char force:1; /* force state */
|
|
unsigned char ignore_suspend:1; /* kept enabled over suspend */
|
|
int subseq; /* sort within widget type */
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|
|
|
int (*power_check)(struct snd_soc_dapm_widget *w);
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|
|
|
/* 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;
|
|
|
|
/* widget input and outputs */
|
|
struct list_head sources;
|
|
struct list_head sinks;
|
|
|
|
/* used during DAPM updates */
|
|
struct list_head power_list;
|
|
};
|
|
|
|
struct snd_soc_dapm_update {
|
|
struct snd_soc_dapm_widget *widget;
|
|
struct snd_kcontrol *kcontrol;
|
|
int reg;
|
|
int mask;
|
|
int val;
|
|
};
|
|
|
|
/* DAPM context */
|
|
struct snd_soc_dapm_context {
|
|
int n_widgets; /* number of widgets in this context */
|
|
enum snd_soc_bias_level bias_level;
|
|
enum snd_soc_bias_level suspend_bias_level;
|
|
struct delayed_work delayed_work;
|
|
unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
|
|
|
|
struct snd_soc_dapm_update *update;
|
|
|
|
void (*seq_notifier)(struct snd_soc_dapm_context *,
|
|
enum snd_soc_dapm_type, int);
|
|
|
|
struct device *dev; /* from parent - for debug */
|
|
struct snd_soc_codec *codec; /* parent codec */
|
|
struct snd_soc_platform *platform; /* parent platform */
|
|
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);
|
|
|
|
#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];
|
|
};
|
|
|
|
#endif
|