287 lines
11 KiB
C
287 lines
11 KiB
C
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/*
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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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#include <sound/soc.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 managment
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*
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* We can have upto 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, .kcontrols = 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, .kcontrols = NULL, \
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.num_kcontrols = 0}
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#define SND_SOC_DAPM_OUTPUT(wname) \
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{ .id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \
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.num_kcontrols = 0}
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#define SND_SOC_DAPM_MIC(wname, wevent) \
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{ .id = snd_soc_dapm_mic, .name = wname, .kcontrols = NULL, \
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.num_kcontrols = 0, .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, .kcontrols = NULL, \
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.num_kcontrols = 0, .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, .kcontrols = NULL, \
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.num_kcontrols = 0, .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, .kcontrols = NULL, \
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.num_kcontrols = 0, .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, .kcontrols = 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, .kcontrols = wcontrols, .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, .kcontrols = 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, .kcontrols = 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, .kcontrols = wcontrols, .num_kcontrols = 1}
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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, .kcontrols = 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, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \
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.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, .kcontrols = 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, .kcontrols = 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, .kcontrols = wcontrols, .num_kcontrols = 1, \
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.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, .kcontrols = NULL, \
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.num_kcontrols = 0, .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, .kcontrols = NULL, \
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.num_kcontrols = 0, .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_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_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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/* dapm kcontrol types */
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#define SOC_DAPM_SINGLE(xname, reg, shift, mask, 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, mask, invert) }
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#define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, mask, invert, \
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power) \
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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 = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\
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((mask) << 16) | ((invert) << 24) }
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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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/* 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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/* 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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/* 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_new_control(struct snd_soc_codec *codec,
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const struct snd_soc_dapm_widget *widget);
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/* dapm path setup */
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int snd_soc_dapm_connect_input(struct snd_soc_codec *codec,
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const char *sink_name, const char *control_name, const char *src_name);
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int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec);
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void snd_soc_dapm_free(struct snd_soc_device *socdev);
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/* dapm events */
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int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream,
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int event);
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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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/* dapm audio endpoint control */
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int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,
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char *pin, int status);
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int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec);
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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_mixer, /* mixes several analog signals together */
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snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */
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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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};
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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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/* 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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/* 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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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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/* 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 */
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struct snd_soc_codec *codec;
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struct list_head list;
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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 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 */
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unsigned char muted:1; /* muted for pop reduction */
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unsigned char suspend:1; /* was active before suspend */
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unsigned char pmdown:1; /* waiting for timeout */
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/* external events */
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unsigned short event_flags; /* flags to specify event types */
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int (*event)(struct snd_soc_dapm_widget*, int);
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/* kcontrols that relate to this widget */
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int num_kcontrols;
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const struct snd_kcontrol_new *kcontrols;
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/* widget input and outputs */
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struct list_head sources;
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struct list_head sinks;
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};
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#endif
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