/* * linux/sound/soc-dapm.h -- ALSA SoC Dynamic Audio Power Management * * Author: Liam Girdwood * Created: Aug 11th 2005 * Copyright: Wolfson Microelectronics. PLC. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __LINUX_SND_SOC_DAPM_H #define __LINUX_SND_SOC_DAPM_H #include <linux/device.h> #include <linux/types.h> #include <sound/control.h> #include <sound/soc.h> /* widget has no PM register bit */ #define SND_SOC_NOPM -1 /* * SoC dynamic audio power managment * * We can have upto 4 power domains * 1. Codec domain - VREF, VMID * Usually controlled at codec probe/remove, although can be set * at stream time if power is not needed for sidetone, etc. * 2. Platform/Machine domain - physically connected inputs and outputs * Is platform/machine and user action specific, is set in the machine * driver and by userspace e.g when HP are inserted * 3. Path domain - Internal codec path mixers * Are automatically set when mixer and mux settings are * changed by the user. * 4. Stream domain - DAC's and ADC's. * Enabled when stream playback/capture is started. */ /* codec domain */ #define SND_SOC_DAPM_VMID(wname) \ { .id = snd_soc_dapm_vmid, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0} /* platform domain */ #define SND_SOC_DAPM_INPUT(wname) \ { .id = snd_soc_dapm_input, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0} #define SND_SOC_DAPM_OUTPUT(wname) \ { .id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0} #define SND_SOC_DAPM_MIC(wname, wevent) \ { .id = snd_soc_dapm_mic, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0, .event = wevent, \ .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD} #define SND_SOC_DAPM_HP(wname, wevent) \ { .id = snd_soc_dapm_hp, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0, .event = wevent, \ .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} #define SND_SOC_DAPM_SPK(wname, wevent) \ { .id = snd_soc_dapm_spk, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0, .event = wevent, \ .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} #define SND_SOC_DAPM_LINE(wname, wevent) \ { .id = snd_soc_dapm_line, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0, .event = wevent, \ .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} /* path domain */ #define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\ wcontrols, wncontrols) \ { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols} #define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \ wcontrols, wncontrols)\ { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols} #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \ { .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0} #define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \ { .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \ { .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} /* path domain with event - event handler must return 0 for success */ #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \ wncontrols, wevent, wflags) \ { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ .event = wevent, .event_flags = wflags} #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \ wncontrols, wevent, wflags) \ { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ .event = wevent, .event_flags = wflags} #define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \ { .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \ .event = wevent, .event_flags = wflags} #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \ wevent, wflags) \ { .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1 \ .event = wevent, .event_flags = wflags} #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \ wevent, wflags) \ { .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \ .event = wevent, .event_flags = wflags} /* events that are pre and post DAPM */ #define SND_SOC_DAPM_PRE(wname, wevent) \ { .id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0, .event = wevent, \ .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD} #define SND_SOC_DAPM_POST(wname, wevent) \ { .id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \ .num_kcontrols = 0, .event = wevent, \ .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD} /* stream domain */ #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \ { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \ .shift = wshift, .invert = winvert} #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \ { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \ .shift = wshift, .invert = winvert} /* dapm kcontrol types */ #define SOC_DAPM_SINGLE(xname, reg, shift, mask, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_soc_info_volsw, \ .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ .private_value = SOC_SINGLE_VALUE(reg, shift, mask, invert) } #define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, mask, invert, \ power) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ .info = snd_soc_info_volsw, \ .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\ ((mask) << 16) | ((invert) << 24) } #define SOC_DAPM_ENUM(xname, xenum) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_soc_info_enum_double, \ .get = snd_soc_dapm_get_enum_double, \ .put = snd_soc_dapm_put_enum_double, \ .private_value = (unsigned long)&xenum } /* dapm stream operations */ #define SND_SOC_DAPM_STREAM_NOP 0x0 #define SND_SOC_DAPM_STREAM_START 0x1 #define SND_SOC_DAPM_STREAM_STOP 0x2 #define SND_SOC_DAPM_STREAM_SUSPEND 0x4 #define SND_SOC_DAPM_STREAM_RESUME 0x8 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20 /* dapm event types */ #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */ #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */ #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */ #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */ #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */ #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */ /* convenience event type detection */ #define SND_SOC_DAPM_EVENT_ON(e) \ (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)) #define SND_SOC_DAPM_EVENT_OFF(e) \ (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)) struct snd_soc_dapm_widget; enum snd_soc_dapm_type; struct snd_soc_dapm_path; struct snd_soc_dapm_pin; /* dapm controls */ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_dapm_new_control(struct snd_soc_codec *codec, const struct snd_soc_dapm_widget *widget); /* dapm path setup */ int snd_soc_dapm_connect_input(struct snd_soc_codec *codec, const char *sink_name, const char *control_name, const char *src_name); int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec); void snd_soc_dapm_free(struct snd_soc_device *socdev); /* dapm events */ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream, int event); /* dapm sys fs - used by the core */ int snd_soc_dapm_sys_add(struct device *dev); /* dapm audio endpoint control */ int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec, char *pin, int status); int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec); /* dapm widget types */ enum snd_soc_dapm_type { snd_soc_dapm_input = 0, /* input pin */ snd_soc_dapm_output, /* output pin */ snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */ snd_soc_dapm_mixer, /* mixes several analog signals together */ snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */ snd_soc_dapm_adc, /* analog to digital converter */ snd_soc_dapm_dac, /* digital to analog converter */ snd_soc_dapm_micbias, /* microphone bias (power) */ snd_soc_dapm_mic, /* microphone */ snd_soc_dapm_hp, /* headphones */ snd_soc_dapm_spk, /* speaker */ snd_soc_dapm_line, /* line input/output */ snd_soc_dapm_switch, /* analog switch */ snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */ snd_soc_dapm_pre, /* machine specific pre widget - exec first */ snd_soc_dapm_post, /* machine specific post widget - exec last */ }; /* dapm audio path between two widgets */ struct snd_soc_dapm_path { char *name; char *long_name; /* source (input) and sink (output) widgets */ struct snd_soc_dapm_widget *source; struct snd_soc_dapm_widget *sink; struct snd_kcontrol *kcontrol; /* status */ u32 connect:1; /* source and sink widgets are connected */ u32 walked:1; /* path has been walked */ struct list_head list_source; struct list_head list_sink; struct list_head list; }; /* dapm widget */ struct snd_soc_dapm_widget { enum snd_soc_dapm_type id; char *name; /* widget name */ char *sname; /* stream name */ struct snd_soc_codec *codec; struct list_head list; /* dapm control */ short reg; /* negative reg = no direct dapm */ unsigned char shift; /* bits to shift */ unsigned int saved_value; /* widget saved value */ unsigned int value; /* widget current value */ unsigned char power:1; /* block power status */ unsigned char invert:1; /* invert the power bit */ unsigned char active:1; /* active stream on DAC, ADC's */ unsigned char connected:1; /* connected codec pin */ unsigned char new:1; /* cnew complete */ unsigned char ext:1; /* has external widgets */ unsigned char muted:1; /* muted for pop reduction */ unsigned char suspend:1; /* was active before suspend */ unsigned char pmdown:1; /* waiting for timeout */ /* external events */ unsigned short event_flags; /* flags to specify event types */ int (*event)(struct snd_soc_dapm_widget*, int); /* kcontrols that relate to this widget */ int num_kcontrols; const struct snd_kcontrol_new *kcontrols; /* widget input and outputs */ struct list_head sources; struct list_head sinks; }; #endif