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_IN_E(wname, stname, wslot, wreg, wshift, winvert, \ 176 wevent, wflags) \ 177 { .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \ 178 .reg = wreg, .shift = wshift, .invert = winvert, \ 179 .event = wevent, .event_flags = wflags } 180 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \ 181 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \ 182 .reg = wreg, .shift = wshift, .invert = winvert } 183 #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wslot, wreg, wshift, winvert, \ 184 wevent, wflags) \ 185 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \ 186 .reg = wreg, .shift = wshift, .invert = winvert, \ 187 .event = wevent, .event_flags = wflags } 188 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \ 189 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \ 190 .shift = wshift, .invert = winvert} 191 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \ 192 wevent, wflags) \ 193 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \ 194 .shift = wshift, .invert = winvert, \ 195 .event = wevent, .event_flags = wflags} 196 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \ 197 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \ 198 .shift = wshift, .invert = winvert} 199 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \ 200 wevent, wflags) \ 201 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \ 202 .shift = wshift, .invert = winvert, \ 203 .event = wevent, .event_flags = wflags} 204 205 /* generic widgets */ 206 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \ 207 { .id = wid, .name = wname, .kcontrols = NULL, .num_kcontrols = 0, \ 208 .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \ 209 .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \ 210 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD} 211 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \ 212 { .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \ 213 .shift = wshift, .invert = winvert, .event = wevent, \ 214 .event_flags = wflags} 215 216 /* dapm kcontrol types */ 217 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \ 218 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 219 .info = snd_soc_info_volsw, \ 220 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 221 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 222 #define SOC_DAPM_DOUBLE(xname, reg, shift_left, shift_right, max, invert, \ 223 power) \ 224 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 225 .info = snd_soc_info_volsw, \ 226 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 227 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\ 228 ((max) << 16) | ((invert) << 24) } 229 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ 230 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 231 .info = snd_soc_info_volsw, \ 232 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 233 .tlv.p = (tlv_array), \ 234 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 235 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 236 #define SOC_DAPM_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, \ 237 power, tlv_array) \ 238 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 239 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 240 .tlv.p = (tlv_array), \ 241 .info = snd_soc_info_volsw, \ 242 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 243 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) |\ 244 ((max) << 16) | ((invert) << 24) } 245 #define SOC_DAPM_ENUM(xname, xenum) \ 246 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 247 .info = snd_soc_info_enum_double, \ 248 .get = snd_soc_dapm_get_enum_double, \ 249 .put = snd_soc_dapm_put_enum_double, \ 250 .private_value = (unsigned long)&xenum } 251 #define SOC_DAPM_ENUM_VIRT(xname, xenum) \ 252 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 253 .info = snd_soc_info_enum_double, \ 254 .get = snd_soc_dapm_get_enum_virt, \ 255 .put = snd_soc_dapm_put_enum_virt, \ 256 .private_value = (unsigned long)&xenum } 257 #define SOC_DAPM_VALUE_ENUM(xname, xenum) \ 258 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 259 .info = snd_soc_info_enum_double, \ 260 .get = snd_soc_dapm_get_value_enum_double, \ 261 .put = snd_soc_dapm_put_value_enum_double, \ 262 .private_value = (unsigned long)&xenum } 263 #define SOC_DAPM_PIN_SWITCH(xname) \ 264 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \ 265 .info = snd_soc_dapm_info_pin_switch, \ 266 .get = snd_soc_dapm_get_pin_switch, \ 267 .put = snd_soc_dapm_put_pin_switch, \ 268 .private_value = (unsigned long)xname } 269 270 /* dapm stream operations */ 271 #define SND_SOC_DAPM_STREAM_NOP 0x0 272 #define SND_SOC_DAPM_STREAM_START 0x1 273 #define SND_SOC_DAPM_STREAM_STOP 0x2 274 #define SND_SOC_DAPM_STREAM_SUSPEND 0x4 275 #define SND_SOC_DAPM_STREAM_RESUME 0x8 276 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH 0x10 277 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE 0x20 278 279 /* dapm event types */ 280 #define SND_SOC_DAPM_PRE_PMU 0x1 /* before widget power up */ 281 #define SND_SOC_DAPM_POST_PMU 0x2 /* after widget power up */ 282 #define SND_SOC_DAPM_PRE_PMD 0x4 /* before widget power down */ 283 #define SND_SOC_DAPM_POST_PMD 0x8 /* after widget power down */ 284 #define SND_SOC_DAPM_PRE_REG 0x10 /* before audio path setup */ 285 #define SND_SOC_DAPM_POST_REG 0x20 /* after audio path setup */ 286 #define SND_SOC_DAPM_PRE_POST_PMD \ 287 (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD) 288 289 /* convenience event type detection */ 290 #define SND_SOC_DAPM_EVENT_ON(e) \ 291 (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)) 292 #define SND_SOC_DAPM_EVENT_OFF(e) \ 293 (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)) 294 295 struct snd_soc_dapm_widget; 296 enum snd_soc_dapm_type; 297 struct snd_soc_dapm_path; 298 struct snd_soc_dapm_pin; 299 struct snd_soc_dapm_route; 300 301 int dapm_reg_event(struct snd_soc_dapm_widget *w, 302 struct snd_kcontrol *kcontrol, int event); 303 304 /* dapm controls */ 305 int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, 306 struct snd_ctl_elem_value *ucontrol); 307 int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, 308 struct snd_ctl_elem_value *ucontrol); 309 int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, 310 struct snd_ctl_elem_value *ucontrol); 311 int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, 312 struct snd_ctl_elem_value *ucontrol); 313 int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, 314 struct snd_ctl_elem_value *ucontrol); 315 int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, 316 struct snd_ctl_elem_value *ucontrol); 317 int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, 318 struct snd_ctl_elem_value *ucontrol); 319 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, 320 struct snd_ctl_elem_value *ucontrol); 321 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, 322 struct snd_ctl_elem_info *uinfo); 323 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, 324 struct snd_ctl_elem_value *uncontrol); 325 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, 326 struct snd_ctl_elem_value *uncontrol); 327 int snd_soc_dapm_new_control(struct snd_soc_codec *codec, 328 const struct snd_soc_dapm_widget *widget); 329 int snd_soc_dapm_new_controls(struct snd_soc_codec *codec, 330 const struct snd_soc_dapm_widget *widget, 331 int num); 332 333 /* dapm path setup */ 334 int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec); 335 void snd_soc_dapm_free(struct snd_soc_codec *codec); 336 int snd_soc_dapm_add_routes(struct snd_soc_codec *codec, 337 const struct snd_soc_dapm_route *route, int num); 338 339 /* dapm events */ 340 int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, 341 const char *stream, int event); 342 void snd_soc_dapm_shutdown(struct snd_soc_card *card); 343 344 /* dapm sys fs - used by the core */ 345 int snd_soc_dapm_sys_add(struct device *dev); 346 void snd_soc_dapm_debugfs_init(struct snd_soc_codec *codec); 347 348 /* dapm audio pin control and status */ 349 int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin); 350 int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin); 351 int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin); 352 int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin); 353 int snd_soc_dapm_sync(struct snd_soc_codec *codec); 354 int snd_soc_dapm_force_enable_pin(struct snd_soc_codec *codec, 355 const char *pin); 356 int snd_soc_dapm_ignore_suspend(struct snd_soc_codec *codec, const char *pin); 357 358 /* dapm widget types */ 359 enum snd_soc_dapm_type { 360 snd_soc_dapm_input = 0, /* input pin */ 361 snd_soc_dapm_output, /* output pin */ 362 snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */ 363 snd_soc_dapm_value_mux, /* selects 1 analog signal from many inputs */ 364 snd_soc_dapm_mixer, /* mixes several analog signals together */ 365 snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */ 366 snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */ 367 snd_soc_dapm_adc, /* analog to digital converter */ 368 snd_soc_dapm_dac, /* digital to analog converter */ 369 snd_soc_dapm_micbias, /* microphone bias (power) */ 370 snd_soc_dapm_mic, /* microphone */ 371 snd_soc_dapm_hp, /* headphones */ 372 snd_soc_dapm_spk, /* speaker */ 373 snd_soc_dapm_line, /* line input/output */ 374 snd_soc_dapm_switch, /* analog switch */ 375 snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */ 376 snd_soc_dapm_pre, /* machine specific pre widget - exec first */ 377 snd_soc_dapm_post, /* machine specific post widget - exec last */ 378 snd_soc_dapm_supply, /* power/clock supply */ 379 snd_soc_dapm_aif_in, /* audio interface input */ 380 snd_soc_dapm_aif_out, /* audio interface output */ 381 }; 382 383 /* 384 * DAPM audio route definition. 385 * 386 * Defines an audio route originating at source via control and finishing 387 * at sink. 388 */ 389 struct snd_soc_dapm_route { 390 const char *sink; 391 const char *control; 392 const char *source; 393 394 /* Note: currently only supported for links where source is a supply */ 395 int (*connected)(struct snd_soc_dapm_widget *source, 396 struct snd_soc_dapm_widget *sink); 397 }; 398 399 /* dapm audio path between two widgets */ 400 struct snd_soc_dapm_path { 401 char *name; 402 char *long_name; 403 404 /* source (input) and sink (output) widgets */ 405 struct snd_soc_dapm_widget *source; 406 struct snd_soc_dapm_widget *sink; 407 struct snd_kcontrol *kcontrol; 408 409 /* status */ 410 u32 connect:1; /* source and sink widgets are connected */ 411 u32 walked:1; /* path has been walked */ 412 413 int (*connected)(struct snd_soc_dapm_widget *source, 414 struct snd_soc_dapm_widget *sink); 415 416 struct list_head list_source; 417 struct list_head list_sink; 418 struct list_head list; 419 }; 420 421 /* dapm widget */ 422 struct snd_soc_dapm_widget { 423 enum snd_soc_dapm_type id; 424 char *name; /* widget name */ 425 char *sname; /* stream name */ 426 struct snd_soc_codec *codec; 427 struct list_head list; 428 429 /* dapm control */ 430 short reg; /* negative reg = no direct dapm */ 431 unsigned char shift; /* bits to shift */ 432 unsigned int saved_value; /* widget saved value */ 433 unsigned int value; /* widget current value */ 434 unsigned int mask; /* non-shifted mask */ 435 unsigned int on_val; /* on state value */ 436 unsigned int off_val; /* off state value */ 437 unsigned char power:1; /* block power status */ 438 unsigned char invert:1; /* invert the power bit */ 439 unsigned char active:1; /* active stream on DAC, ADC's */ 440 unsigned char connected:1; /* connected codec pin */ 441 unsigned char new:1; /* cnew complete */ 442 unsigned char ext:1; /* has external widgets */ 443 unsigned char force:1; /* force state */ 444 unsigned char ignore_suspend:1; /* kept enabled over suspend */ 445 446 int (*power_check)(struct snd_soc_dapm_widget *w); 447 448 /* external events */ 449 unsigned short event_flags; /* flags to specify event types */ 450 int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int); 451 452 /* kcontrols that relate to this widget */ 453 int num_kcontrols; 454 const struct snd_kcontrol_new *kcontrols; 455 456 /* widget input and outputs */ 457 struct list_head sources; 458 struct list_head sinks; 459 460 /* used during DAPM updates */ 461 struct list_head power_list; 462 }; 463 464 #endif 465