| /* |
| * 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 management |
| * |
| * 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); |
| int snd_soc_dapm_device_event(struct snd_soc_device *socdev, 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 |