1/* 2 * linux/sound/soc-dapm.h -- ALSA SoC Dynamic Audio Power Management 3 * 4 * Author: Liam Girdwood 5 * Created: Aug 11th 2005 6 * Copyright: Wolfson Microelectronics. PLC. 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13#ifndef __LINUX_SND_SOC_DAPM_H 14#define __LINUX_SND_SOC_DAPM_H 15 16#include <linux/device.h> 17#include <linux/types.h> 18#include <sound/control.h> 19#include <sound/soc.h> 20 21/* widget has no PM register bit */ 22#define SND_SOC_NOPM -1 23 24/* 25 * SoC dynamic audio power management 26 * 27 * We can have upto 4 power domains 28 * 1. Codec domain - VREF, VMID 29 * Usually controlled at codec probe/remove, although can be set 30 * at stream time if power is not needed for sidetone, etc. 31 * 2. Platform/Machine domain - physically connected inputs and outputs 32 * Is platform/machine and user action specific, is set in the machine 33 * driver and by userspace e.g when HP are inserted 34 * 3. Path domain - Internal codec path mixers 35 * Are automatically set when mixer and mux settings are 36 * changed by the user. 37 * 4. Stream domain - DAC's and ADC's. 38 * Enabled when stream playback/capture is started. 39 */ 40 41/* codec domain */ 42#define SND_SOC_DAPM_VMID(wname) \ 43{ .id = snd_soc_dapm_vmid, .name = wname, .kcontrols = NULL, \ 44 .num_kcontrols = 0} 45 46/* platform domain */ 47#define SND_SOC_DAPM_INPUT(wname) \ 48{ .id = snd_soc_dapm_input, .name = wname, .kcontrols = NULL, \ 49 .num_kcontrols = 0} 50#define SND_SOC_DAPM_OUTPUT(wname) \ 51{ .id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \ 52 .num_kcontrols = 0} 53#define SND_SOC_DAPM_MIC(wname, wevent) \ 54{ .id = snd_soc_dapm_mic, .name = wname, .kcontrols = NULL, \ 55 .num_kcontrols = 0, .event = wevent, \ 56 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD} 57#define SND_SOC_DAPM_HP(wname, wevent) \ 58{ .id = snd_soc_dapm_hp, .name = wname, .kcontrols = NULL, \ 59 .num_kcontrols = 0, .event = wevent, \ 60 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} 61#define SND_SOC_DAPM_SPK(wname, wevent) \ 62{ .id = snd_soc_dapm_spk, .name = wname, .kcontrols = NULL, \ 63 .num_kcontrols = 0, .event = wevent, \ 64 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} 65#define SND_SOC_DAPM_LINE(wname, wevent) \ 66{ .id = snd_soc_dapm_line, .name = wname, .kcontrols = NULL, \ 67 .num_kcontrols = 0, .event = wevent, \ 68 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} 69 70/* path domain */ 71#define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\ 72 wcontrols, wncontrols) \ 73{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ 74 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols} 75#define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \ 76 wcontrols, wncontrols)\ 77{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 78 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols} 79#define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \ 80 wcontrols, wncontrols)\ 81{ .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \ 82 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \ 83 .num_kcontrols = wncontrols} 84#define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \ 85{ .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \ 86 .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0} 87#define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \ 88{ .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \ 89 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} 90#define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \ 91{ .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \ 92 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} 93#define SND_SOC_DAPM_VALUE_MUX(wname, wreg, wshift, winvert, wcontrols) \ 94{ .id = snd_soc_dapm_value_mux, .name = wname, .reg = wreg, \ 95 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \ 96 .num_kcontrols = 1} 97 98/* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */ 99#define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\ 100 wcontrols) \ 101{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ 102 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)} 103#define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \ 104 wcontrols)\ 105{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 106 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)} 107#define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \ 108 wcontrols)\ 109{ .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \ 110 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \ 111 .num_kcontrols = ARRAY_SIZE(wcontrols)} 112 113/* path domain with event - event handler must return 0 for success */ 114#define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \ 115 wncontrols, wevent, wflags) \ 116{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ 117 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ 118 .event = wevent, .event_flags = wflags} 119#define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \ 120 wncontrols, wevent, wflags) \ 121{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 122 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ 123 .event = wevent, .event_flags = wflags} 124#define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \ 125 wcontrols, wncontrols, wevent, wflags) \ 126{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 127 .invert = winvert, .kcontrols = wcontrols, \ 128 .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags} 129#define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \ 130{ .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \ 131 .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \ 132 .event = wevent, .event_flags = wflags} 133#define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \ 134 wevent, wflags) \ 135{ .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \ 136 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \ 137 .event = wevent, .event_flags = wflags} 138#define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \ 139 wevent, wflags) \ 140{ .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \ 141 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \ 142 .event = wevent, .event_flags = wflags} 143 144/* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */ 145#define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \ 146 wevent, wflags) \ 147{ .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ 148 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \ 149 .event = wevent, .event_flags = wflags} 150#define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \ 151 wevent, wflags) \ 152{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 153 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \ 154 .event = wevent, .event_flags = wflags} 155#define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \ 156 wcontrols, wevent, wflags) \ 157{ .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 158 .invert = winvert, .kcontrols = wcontrols, \ 159 .num_kcontrols = ARRAY_SIZE(wcontrols), .event = wevent, .event_flags = wflags} 160 161/* events that are pre and post DAPM */ 162#define SND_SOC_DAPM_PRE(wname, wevent) \ 163{ .id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \ 164 .num_kcontrols = 0, .event = wevent, \ 165 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD} 166#define SND_SOC_DAPM_POST(wname, wevent) \ 167{ .id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \ 168 .num_kcontrols = 0, .event = wevent, \ 169 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD} 170 171/* stream domain */ 172#define SND_SOC_DAPM_AIF_IN(wname, stname, wslot, wreg, wshift, winvert) \ 173{ .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \ 174 .reg = wreg, .shift = wshift, .invert = winvert } 175#define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \ 176{ .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \ 177 .reg = wreg, .shift = wshift, .invert = winvert } 178#define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \ 179{ .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \ 180 .shift = wshift, .invert = winvert} 181#define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \ 182 wevent, wflags) \ 183{ .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \ 184 .shift = wshift, .invert = winvert, \ 185 .event = wevent, .event_flags = wflags} 186#define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \ 187{ .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \ 188 .shift = wshift, .invert = winvert} 189#define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \ 190 wevent, wflags) \ 191{ .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \ 192 .shift = wshift, .invert = winvert, \ 193 .event = wevent, .event_flags = wflags} 194 195/* generic widgets */ 196#define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \ 197{ .id = wid, .name = wname, .kcontrols = NULL, .num_kcontrols = 0, \ 198 .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \ 199 .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \ 200 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD} 201#define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \ 202{ .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \ 203 .shift = wshift, .invert = winvert, .event = wevent, \ 204 .event_flags = wflags} 205 206/* dapm kcontrol types */ 207#define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \ 208{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 209 .info = snd_soc_info_volsw, \ 210 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 211 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 212#define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, max, invert, \ 213 power) \ 214{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 215 .info = snd_soc_info_volsw, \ 216 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 217 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\ 218 ((max) << 16) | ((invert) << 24) } 219#define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ 220{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 221 .info = snd_soc_info_volsw, \ 222 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 223 .tlv.p = (tlv_array), \ 224 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 225 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 226#define SOC_DAPM_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, \ 227 power, tlv_array) \ 228{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 229 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 230 .tlv.p = (tlv_array), \ 231 .info = snd_soc_info_volsw, \ 232 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 233 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\ 234 ((max) << 16) | ((invert) << 24) } 235#define SOC_DAPM_ENUM(xname, xenum) \ 236{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 237 .info = snd_soc_info_enum_double, \ 238 .get = snd_soc_dapm_get_enum_double, \ 239 .put = snd_soc_dapm_put_enum_double, \ 240 .private_value = (unsigned long)&xenum } 241#define SOC_DAPM_ENUM_VIRT(xname, xenum) \ 242{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 243 .info = snd_soc_info_enum_double, \ 244 .get = snd_soc_dapm_get_enum_virt, \ 245 .put = snd_soc_dapm_put_enum_virt, \ 246 .private_value = (unsigned long)&xenum } 247#define SOC_DAPM_VALUE_ENUM(xname, xenum) \ 248{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 249 .info = snd_soc_info_enum_double, \ 250 .get = snd_soc_dapm_get_value_enum_double, \ 251 .put = snd_soc_dapm_put_value_enum_double, \ 252 .private_value = (unsigned long)&xenum } 253#define SOC_DAPM_PIN_SWITCH(xname) \ 254{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \ 255 .info = snd_soc_dapm_info_pin_switch, \ 256 .get = snd_soc_dapm_get_pin_switch, \ 257 .put = snd_soc_dapm_put_pin_switch, \ 258 .private_value = (unsigned long)xname } 259 260/* dapm stream operations */ 261#define SND_SOC_DAPM_STREAM_NOP 0x0 262#define SND_SOC_DAPM_STREAM_START 0x1 263#define SND_SOC_DAPM_STREAM_STOP 0x2 264#define SND_SOC_DAPM_STREAM_SUSPEND 0x4 265#define SND_SOC_DAPM_STREAM_RESUME 0x8 266#define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10 267#define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20 268 269/* dapm event types */ 270#define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */ 271#define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */ 272#define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */ 273#define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */ 274#define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */ 275#define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */ 276#define SND_SOC_DAPM_PRE_POST_PMD \ 277 (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD) 278 279/* convenience event type detection */ 280#define SND_SOC_DAPM_EVENT_ON(e) \ 281 (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)) 282#define SND_SOC_DAPM_EVENT_OFF(e) \ 283 (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)) 284 285struct snd_soc_dapm_widget; 286enum snd_soc_dapm_type; 287struct snd_soc_dapm_path; 288struct snd_soc_dapm_pin; 289struct snd_soc_dapm_route; 290 291int dapm_reg_event(struct snd_soc_dapm_widget *w, 292 struct snd_kcontrol *kcontrol, int event); 293 294/* dapm controls */ 295int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, 296 struct snd_ctl_elem_value *ucontrol); 297int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, 298 struct snd_ctl_elem_value *ucontrol); 299int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, 300 struct snd_ctl_elem_value *ucontrol); 301int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, 302 struct snd_ctl_elem_value *ucontrol); 303int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, 304 struct snd_ctl_elem_value *ucontrol); 305int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, 306 struct snd_ctl_elem_value *ucontrol); 307int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, 308 struct snd_ctl_elem_value *ucontrol); 309int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, 310 struct snd_ctl_elem_value *ucontrol); 311int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, 312 struct snd_ctl_elem_info *uinfo); 313int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, 314 struct snd_ctl_elem_value *uncontrol); 315int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, 316 struct snd_ctl_elem_value *uncontrol); 317int snd_soc_dapm_new_control(struct snd_soc_codec *codec, 318 const struct snd_soc_dapm_widget *widget); 319int snd_soc_dapm_new_controls(struct snd_soc_codec *codec, 320 const struct snd_soc_dapm_widget *widget, 321 int num); 322 323/* dapm path setup */ 324int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec); 325void snd_soc_dapm_free(struct snd_soc_device *socdev); 326int snd_soc_dapm_add_routes(struct snd_soc_codec *codec, 327 const struct snd_soc_dapm_route *route, int num); 328 329/* dapm events */ 330int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream, 331 int event); 332void snd_soc_dapm_shutdown(struct snd_soc_device *socdev); 333 334/* dapm sys fs - used by the core */ 335int snd_soc_dapm_sys_add(struct device *dev); 336void snd_soc_dapm_debugfs_init(struct snd_soc_codec *codec); 337 338/* dapm audio pin control and status */ 339int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin); 340int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin); 341int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin); 342int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin); 343int snd_soc_dapm_sync(struct snd_soc_codec *codec); 344int snd_soc_dapm_force_enable_pin(struct snd_soc_codec *codec, 345 const char *pin); 346int snd_soc_dapm_ignore_suspend(struct snd_soc_codec *codec, const char *pin); 347 348/* dapm widget types */ 349enum snd_soc_dapm_type { 350 snd_soc_dapm_input = 0, /* input pin */ 351 snd_soc_dapm_output, /* output pin */ 352 snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */ 353 snd_soc_dapm_value_mux, /* selects 1 analog signal from many inputs */ 354 snd_soc_dapm_mixer, /* mixes several analog signals together */ 355 snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */ 356 snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */ 357 snd_soc_dapm_adc, /* analog to digital converter */ 358 snd_soc_dapm_dac, /* digital to analog converter */ 359 snd_soc_dapm_micbias, /* microphone bias (power) */ 360 snd_soc_dapm_mic, /* microphone */ 361 snd_soc_dapm_hp, /* headphones */ 362 snd_soc_dapm_spk, /* speaker */ 363 snd_soc_dapm_line, /* line input/output */ 364 snd_soc_dapm_switch, /* analog switch */ 365 snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */ 366 snd_soc_dapm_pre, /* machine specific pre widget - exec first */ 367 snd_soc_dapm_post, /* machine specific post widget - exec last */ 368 snd_soc_dapm_supply, /* power/clock supply */ 369 snd_soc_dapm_aif_in, /* audio interface input */ 370 snd_soc_dapm_aif_out, /* audio interface output */ 371}; 372 373/* 374 * DAPM audio route definition. 375 * 376 * Defines an audio route originating at source via control and finishing 377 * at sink. 378 */ 379struct snd_soc_dapm_route { 380 const char *sink; 381 const char *control; 382 const char *source; 383 384 /* Note: currently only supported for links where source is a supply */ 385 int (*connected)(struct snd_soc_dapm_widget *source, 386 struct snd_soc_dapm_widget *sink); 387}; 388 389/* dapm audio path between two widgets */ 390struct snd_soc_dapm_path { 391 char *name; 392 char *long_name; 393 394 /* source (input) and sink (output) widgets */ 395 struct snd_soc_dapm_widget *source; 396 struct snd_soc_dapm_widget *sink; 397 struct snd_kcontrol *kcontrol; 398 399 /* status */ 400 u32 connect:1; /* source and sink widgets are connected */ 401 u32 walked:1; /* path has been walked */ 402 403 int (*connected)(struct snd_soc_dapm_widget *source, 404 struct snd_soc_dapm_widget *sink); 405 406 struct list_head list_source; 407 struct list_head list_sink; 408 struct list_head list; 409}; 410 411/* dapm widget */ 412struct snd_soc_dapm_widget { 413 enum snd_soc_dapm_type id; 414 char *name; /* widget name */ 415 char *sname; /* stream name */ 416 struct snd_soc_codec *codec; 417 struct list_head list; 418 419 /* dapm control */ 420 short reg; /* negative reg = no direct dapm */ 421 unsigned char shift; /* bits to shift */ 422 unsigned int saved_value; /* widget saved value */ 423 unsigned int value; /* widget current value */ 424 unsigned int mask; /* non-shifted mask */ 425 unsigned int on_val; /* on state value */ 426 unsigned int off_val; /* off state value */ 427 unsigned char power:1; /* block power status */ 428 unsigned char invert:1; /* invert the power bit */ 429 unsigned char active:1; /* active stream on DAC, ADC's */ 430 unsigned char connected:1; /* connected codec pin */ 431 unsigned char new:1; /* cnew complete */ 432 unsigned char ext:1; /* has external widgets */ 433 unsigned char force:1; /* force state */ 434 unsigned char ignore_suspend:1; /* kept enabled over suspend */ 435 436 int (*power_check)(struct snd_soc_dapm_widget *w); 437 438 /* external events */ 439 unsigned short event_flags; /* flags to specify event types */ 440 int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int); 441 442 /* kcontrols that relate to this widget */ 443 int num_kcontrols; 444 const struct snd_kcontrol_new *kcontrols; 445 446 /* widget input and outputs */ 447 struct list_head sources; 448 struct list_head sinks; 449 450 /* used during DAPM updates */ 451 struct list_head power_list; 452}; 453 454#endif 455