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 20 /* widget has no PM register bit */ 21 #define SND_SOC_NOPM -1 22 23 /* 24 * SoC dynamic audio power management 25 * 26 * We can have upto 4 power domains 27 * 1. Codec domain - VREF, VMID 28 * Usually controlled at codec probe/remove, although can be set 29 * at stream time if power is not needed for sidetone, etc. 30 * 2. Platform/Machine domain - physically connected inputs and outputs 31 * Is platform/machine and user action specific, is set in the machine 32 * driver and by userspace e.g when HP are inserted 33 * 3. Path domain - Internal codec path mixers 34 * Are automatically set when mixer and mux settings are 35 * changed by the user. 36 * 4. Stream domain - DAC's and ADC's. 37 * Enabled when stream playback/capture is started. 38 */ 39 40 /* codec domain */ 41 #define SND_SOC_DAPM_VMID(wname) \ 42 { .id = snd_soc_dapm_vmid, .name = wname, .kcontrols = NULL, \ 43 .num_kcontrols = 0} 44 45 /* platform domain */ 46 #define SND_SOC_DAPM_INPUT(wname) \ 47 { .id = snd_soc_dapm_input, .name = wname, .kcontrols = NULL, \ 48 .num_kcontrols = 0} 49 #define SND_SOC_DAPM_OUTPUT(wname) \ 50 { .id = snd_soc_dapm_output, .name = wname, .kcontrols = NULL, \ 51 .num_kcontrols = 0} 52 #define SND_SOC_DAPM_MIC(wname, wevent) \ 53 { .id = snd_soc_dapm_mic, .name = wname, .kcontrols = NULL, \ 54 .num_kcontrols = 0, .event = wevent, \ 55 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD} 56 #define SND_SOC_DAPM_HP(wname, wevent) \ 57 { .id = snd_soc_dapm_hp, .name = wname, .kcontrols = NULL, \ 58 .num_kcontrols = 0, .event = wevent, \ 59 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} 60 #define SND_SOC_DAPM_SPK(wname, wevent) \ 61 { .id = snd_soc_dapm_spk, .name = wname, .kcontrols = NULL, \ 62 .num_kcontrols = 0, .event = wevent, \ 63 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} 64 #define SND_SOC_DAPM_LINE(wname, wevent) \ 65 { .id = snd_soc_dapm_line, .name = wname, .kcontrols = NULL, \ 66 .num_kcontrols = 0, .event = wevent, \ 67 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD} 68 69 /* path domain */ 70 #define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\ 71 wcontrols, wncontrols) \ 72 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ 73 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols} 74 #define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\ 75 wcontrols, wncontrols) \ 76 { .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \ 77 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols} 78 #define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \ 79 wcontrols, wncontrols)\ 80 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 81 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols} 82 #define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \ 83 wcontrols, wncontrols)\ 84 { .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \ 85 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \ 86 .num_kcontrols = wncontrols} 87 #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \ 88 { .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \ 89 .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0} 90 #define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \ 91 { .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \ 92 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} 93 #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \ 94 { .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \ 95 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} 96 #define SND_SOC_DAPM_VIRT_MUX(wname, wreg, wshift, winvert, wcontrols) \ 97 { .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \ 98 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1} 99 #define SND_SOC_DAPM_VALUE_MUX(wname, wreg, wshift, winvert, wcontrols) \ 100 { .id = snd_soc_dapm_value_mux, .name = wname, .reg = wreg, \ 101 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \ 102 .num_kcontrols = 1} 103 104 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */ 105 #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\ 106 wcontrols) \ 107 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ 108 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)} 109 #define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \ 110 wcontrols)\ 111 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 112 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)} 113 #define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \ 114 wcontrols)\ 115 { .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \ 116 .shift = wshift, .invert = winvert, .kcontrols = wcontrols, \ 117 .num_kcontrols = ARRAY_SIZE(wcontrols)} 118 119 /* path domain with event - event handler must return 0 for success */ 120 #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \ 121 wncontrols, wevent, wflags) \ 122 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ 123 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ 124 .event = wevent, .event_flags = wflags} 125 #define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \ 126 wncontrols, wevent, wflags) \ 127 { .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \ 128 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ 129 .event = wevent, .event_flags = wflags} 130 #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \ 131 wncontrols, wevent, wflags) \ 132 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 133 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = wncontrols, \ 134 .event = wevent, .event_flags = wflags} 135 #define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \ 136 wcontrols, wncontrols, wevent, wflags) \ 137 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 138 .invert = winvert, .kcontrols = wcontrols, \ 139 .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags} 140 #define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \ 141 { .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \ 142 .invert = winvert, .kcontrols = NULL, .num_kcontrols = 0, \ 143 .event = wevent, .event_flags = wflags} 144 #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \ 145 wevent, wflags) \ 146 { .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \ 147 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \ 148 .event = wevent, .event_flags = wflags} 149 #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \ 150 wevent, wflags) \ 151 { .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \ 152 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \ 153 .event = wevent, .event_flags = wflags} 154 #define SND_SOC_DAPM_VIRT_MUX_E(wname, wreg, wshift, winvert, wcontrols, \ 155 wevent, wflags) \ 156 { .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \ 157 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \ 158 .event = wevent, .event_flags = wflags} 159 160 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */ 161 #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \ 162 wevent, wflags) \ 163 { .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \ 164 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \ 165 .event = wevent, .event_flags = wflags} 166 #define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \ 167 wevent, wflags) \ 168 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 169 .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \ 170 .event = wevent, .event_flags = wflags} 171 #define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \ 172 wcontrols, wevent, wflags) \ 173 { .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \ 174 .invert = winvert, .kcontrols = wcontrols, \ 175 .num_kcontrols = ARRAY_SIZE(wcontrols), .event = wevent, .event_flags = wflags} 176 177 /* events that are pre and post DAPM */ 178 #define SND_SOC_DAPM_PRE(wname, wevent) \ 179 { .id = snd_soc_dapm_pre, .name = wname, .kcontrols = NULL, \ 180 .num_kcontrols = 0, .event = wevent, \ 181 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD} 182 #define SND_SOC_DAPM_POST(wname, wevent) \ 183 { .id = snd_soc_dapm_post, .name = wname, .kcontrols = NULL, \ 184 .num_kcontrols = 0, .event = wevent, \ 185 .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD} 186 187 /* stream domain */ 188 #define SND_SOC_DAPM_AIF_IN(wname, stname, wslot, wreg, wshift, winvert) \ 189 { .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \ 190 .reg = wreg, .shift = wshift, .invert = winvert } 191 #define SND_SOC_DAPM_AIF_IN_E(wname, stname, wslot, wreg, wshift, winvert, \ 192 wevent, wflags) \ 193 { .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \ 194 .reg = wreg, .shift = wshift, .invert = winvert, \ 195 .event = wevent, .event_flags = wflags } 196 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \ 197 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \ 198 .reg = wreg, .shift = wshift, .invert = winvert } 199 #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wslot, wreg, wshift, winvert, \ 200 wevent, wflags) \ 201 { .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \ 202 .reg = wreg, .shift = wshift, .invert = winvert, \ 203 .event = wevent, .event_flags = wflags } 204 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \ 205 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \ 206 .shift = wshift, .invert = winvert} 207 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \ 208 wevent, wflags) \ 209 { .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \ 210 .shift = wshift, .invert = winvert, \ 211 .event = wevent, .event_flags = wflags} 212 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \ 213 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \ 214 .shift = wshift, .invert = winvert} 215 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \ 216 wevent, wflags) \ 217 { .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \ 218 .shift = wshift, .invert = winvert, \ 219 .event = wevent, .event_flags = wflags} 220 221 /* generic widgets */ 222 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \ 223 { .id = wid, .name = wname, .kcontrols = NULL, .num_kcontrols = 0, \ 224 .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \ 225 .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \ 226 .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD} 227 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \ 228 { .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \ 229 .shift = wshift, .invert = winvert, .event = wevent, \ 230 .event_flags = wflags} 231 232 /* dapm kcontrol types */ 233 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \ 234 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 235 .info = snd_soc_info_volsw, \ 236 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 237 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 238 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ 239 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 240 .info = snd_soc_info_volsw, \ 241 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 242 .tlv.p = (tlv_array), \ 243 .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \ 244 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 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 struct snd_soc_dapm_context; 301 302 int dapm_reg_event(struct snd_soc_dapm_widget *w, 303 struct snd_kcontrol *kcontrol, int event); 304 305 /* dapm controls */ 306 int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, 307 struct snd_ctl_elem_value *ucontrol); 308 int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, 309 struct snd_ctl_elem_value *ucontrol); 310 int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, 311 struct snd_ctl_elem_value *ucontrol); 312 int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, 313 struct snd_ctl_elem_value *ucontrol); 314 int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, 315 struct snd_ctl_elem_value *ucontrol); 316 int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, 317 struct snd_ctl_elem_value *ucontrol); 318 int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, 319 struct snd_ctl_elem_value *ucontrol); 320 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, 321 struct snd_ctl_elem_value *ucontrol); 322 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, 323 struct snd_ctl_elem_info *uinfo); 324 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, 325 struct snd_ctl_elem_value *uncontrol); 326 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, 327 struct snd_ctl_elem_value *uncontrol); 328 int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, 329 const struct snd_soc_dapm_widget *widget); 330 int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, 331 const struct snd_soc_dapm_widget *widget, 332 int num); 333 334 /* dapm path setup */ 335 int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm); 336 void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm); 337 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, 338 const struct snd_soc_dapm_route *route, int num); 339 340 /* dapm events */ 341 int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, 342 const char *stream, int event); 343 void snd_soc_dapm_shutdown(struct snd_soc_card *card); 344 345 /* dapm sys fs - used by the core */ 346 int snd_soc_dapm_sys_add(struct device *dev); 347 void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm); 348 349 /* dapm audio pin control and status */ 350 int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, 351 const char *pin); 352 int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, 353 const char *pin); 354 int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin); 355 int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, 356 const char *pin); 357 int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm); 358 int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, 359 const char *pin); 360 int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, 361 const char *pin); 362 363 /* dapm widget types */ 364 enum snd_soc_dapm_type { 365 snd_soc_dapm_input = 0, /* input pin */ 366 snd_soc_dapm_output, /* output pin */ 367 snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */ 368 snd_soc_dapm_virt_mux, /* virtual version of snd_soc_dapm_mux */ 369 snd_soc_dapm_value_mux, /* selects 1 analog signal from many inputs */ 370 snd_soc_dapm_mixer, /* mixes several analog signals together */ 371 snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */ 372 snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */ 373 snd_soc_dapm_out_drv, /* output driver */ 374 snd_soc_dapm_adc, /* analog to digital converter */ 375 snd_soc_dapm_dac, /* digital to analog converter */ 376 snd_soc_dapm_micbias, /* microphone bias (power) */ 377 snd_soc_dapm_mic, /* microphone */ 378 snd_soc_dapm_hp, /* headphones */ 379 snd_soc_dapm_spk, /* speaker */ 380 snd_soc_dapm_line, /* line input/output */ 381 snd_soc_dapm_switch, /* analog switch */ 382 snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */ 383 snd_soc_dapm_pre, /* machine specific pre widget - exec first */ 384 snd_soc_dapm_post, /* machine specific post widget - exec last */ 385 snd_soc_dapm_supply, /* power/clock supply */ 386 snd_soc_dapm_aif_in, /* audio interface input */ 387 snd_soc_dapm_aif_out, /* audio interface output */ 388 }; 389 390 /* 391 * DAPM audio route definition. 392 * 393 * Defines an audio route originating at source via control and finishing 394 * at sink. 395 */ 396 struct snd_soc_dapm_route { 397 const char *sink; 398 const char *control; 399 const char *source; 400 401 /* Note: currently only supported for links where source is a supply */ 402 int (*connected)(struct snd_soc_dapm_widget *source, 403 struct snd_soc_dapm_widget *sink); 404 }; 405 406 /* dapm audio path between two widgets */ 407 struct snd_soc_dapm_path { 408 char *name; 409 char *long_name; 410 411 /* source (input) and sink (output) widgets */ 412 struct snd_soc_dapm_widget *source; 413 struct snd_soc_dapm_widget *sink; 414 struct snd_kcontrol *kcontrol; 415 416 /* status */ 417 u32 connect:1; /* source and sink widgets are connected */ 418 u32 walked:1; /* path has been walked */ 419 420 int (*connected)(struct snd_soc_dapm_widget *source, 421 struct snd_soc_dapm_widget *sink); 422 423 struct list_head list_source; 424 struct list_head list_sink; 425 struct list_head list; 426 }; 427 428 /* dapm widget */ 429 struct snd_soc_dapm_widget { 430 enum snd_soc_dapm_type id; 431 char *name; /* widget name */ 432 char *sname; /* stream name */ 433 struct snd_soc_codec *codec; 434 struct list_head list; 435 struct snd_soc_dapm_context *dapm; 436 437 /* dapm control */ 438 short reg; /* negative reg = no direct dapm */ 439 unsigned char shift; /* bits to shift */ 440 unsigned int saved_value; /* widget saved value */ 441 unsigned int value; /* widget current value */ 442 unsigned int mask; /* non-shifted mask */ 443 unsigned int on_val; /* on state value */ 444 unsigned int off_val; /* off state value */ 445 unsigned char power:1; /* block power status */ 446 unsigned char invert:1; /* invert the power bit */ 447 unsigned char active:1; /* active stream on DAC, ADC's */ 448 unsigned char connected:1; /* connected codec pin */ 449 unsigned char new:1; /* cnew complete */ 450 unsigned char ext:1; /* has external widgets */ 451 unsigned char force:1; /* force state */ 452 unsigned char ignore_suspend:1; /* kept enabled over suspend */ 453 454 int (*power_check)(struct snd_soc_dapm_widget *w); 455 456 /* external events */ 457 unsigned short event_flags; /* flags to specify event types */ 458 int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int); 459 460 /* kcontrols that relate to this widget */ 461 int num_kcontrols; 462 const struct snd_kcontrol_new *kcontrols; 463 464 /* widget input and outputs */ 465 struct list_head sources; 466 struct list_head sinks; 467 468 /* used during DAPM updates */ 469 struct list_head power_list; 470 }; 471 472 struct snd_soc_dapm_update { 473 struct snd_soc_dapm_widget *widget; 474 struct snd_kcontrol *kcontrol; 475 int reg; 476 int mask; 477 int val; 478 }; 479 480 /* DAPM context */ 481 struct snd_soc_dapm_context { 482 int n_widgets; /* number of widgets in this context */ 483 enum snd_soc_bias_level bias_level; 484 enum snd_soc_bias_level suspend_bias_level; 485 struct delayed_work delayed_work; 486 unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */ 487 488 struct snd_soc_dapm_update *update; 489 490 struct device *dev; /* from parent - for debug */ 491 struct snd_soc_codec *codec; /* parent codec */ 492 struct snd_soc_card *card; /* parent card */ 493 494 /* used during DAPM updates */ 495 int dev_power; 496 struct list_head list; 497 498 #ifdef CONFIG_DEBUG_FS 499 struct dentry *debugfs_dapm; 500 #endif 501 }; 502 503 #endif 504