include/sound/soc-dapm.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  *
   3  * linux/sound/soc-dapm.h -- ALSA SoC Dynamic Audio Power Management
   4  *
   5  * Author:      Liam Girdwood
   6  * Created:     Aug 11th 2005
   7  * Copyright:   Wolfson Microelectronics. PLC.
   8  */
   9
  10 #ifndef __LINUX_SND_SOC_DAPM_H
  11 #define __LINUX_SND_SOC_DAPM_H
  12
  13 #include <linux/types.h>
  14 #include <sound/control.h>
  15 #include <sound/soc-topology.h>
  16 #include <sound/asoc.h>
  17
  18 struct device;
  19 struct snd_pcm_substream;
  20 struct snd_soc_pcm_runtime;
  21 struct soc_enum;
  22
  23 /* widget has no PM register bit */
  24 #define SND_SOC_NOPM    -1
  25
  26 /*
  27  * SoC dynamic audio power management
  28  *
  29  * We can have up to 4 power domains
  30  *  1. Codec domain - VREF, VMID
  31  *     Usually controlled at codec probe/remove, although can be set
  32  *     at stream time if power is not needed for sidetone, etc.
  33  *  2. Platform/Machine domain - physically connected inputs and outputs
  34  *     Is platform/machine and user action specific, is set in the machine
  35  *     driver and by userspace e.g when HP are inserted
  36  *  3. Path domain - Internal codec path mixers
  37  *     Are automatically set when mixer and mux settings are
  38  *     changed by the user.
  39  *  4. Stream domain - DAC's and ADC's.
  40  *     Enabled when stream playback/capture is started.
  41  */
  42
  43 /* codec domain */
  44 #define SND_SOC_DAPM_VMID(wname) \
  45 (struct snd_soc_dapm_widget) { \
  46         .id = snd_soc_dapm_vmid, .name = wname, .kcontrol_news = NULL, \
  47         .num_kcontrols = 0}
  48
  49 /* platform domain */
  50 #define SND_SOC_DAPM_SIGGEN(wname) \
  51 (struct snd_soc_dapm_widget) { \
  52         .id = snd_soc_dapm_siggen, .name = wname, .kcontrol_news = NULL, \
  53         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  54 #define SND_SOC_DAPM_SINK(wname) \
  55 (struct snd_soc_dapm_widget) { \
  56         .id = snd_soc_dapm_sink, .name = wname, .kcontrol_news = NULL, \
  57         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  58 #define SND_SOC_DAPM_INPUT(wname) \
  59 (struct snd_soc_dapm_widget) { \
  60         .id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \
  61         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  62 #define SND_SOC_DAPM_OUTPUT(wname) \
  63 (struct snd_soc_dapm_widget) { \
  64         .id = snd_soc_dapm_output, .name = wname, .kcontrol_news = NULL, \
  65         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  66 #define SND_SOC_DAPM_MIC(wname, wevent) \
  67 (struct snd_soc_dapm_widget) { \
  68         .id = snd_soc_dapm_mic, .name = wname, .kcontrol_news = NULL, \
  69         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  70         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
  71 #define SND_SOC_DAPM_HP(wname, wevent) \
  72 (struct snd_soc_dapm_widget) { \
  73         .id = snd_soc_dapm_hp, .name = wname, .kcontrol_news = NULL, \
  74         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  75         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  76 #define SND_SOC_DAPM_SPK(wname, wevent) \
  77 (struct snd_soc_dapm_widget) { \
  78         .id = snd_soc_dapm_spk, .name = wname, .kcontrol_news = NULL, \
  79         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  80         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  81 #define SND_SOC_DAPM_LINE(wname, wevent) \
  82 (struct snd_soc_dapm_widget) { \
  83         .id = snd_soc_dapm_line, .name = wname, .kcontrol_news = NULL, \
  84         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  85         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  86
  87 #define SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert) \
  88         .reg = wreg, .mask = 1, .shift = wshift, \
  89         .on_val = winvert ? 0 : 1, .off_val = winvert ? 1 : 0
  90
  91 /* path domain */
  92 #define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\
  93          wcontrols, wncontrols) \
  94 (struct snd_soc_dapm_widget) { \
  95         .id = snd_soc_dapm_pga, .name = wname, \
  96         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
  97         .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
  98 #define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\
  99          wcontrols, wncontrols) \
 100 (struct snd_soc_dapm_widget) { \
 101         .id = snd_soc_dapm_out_drv, .name = wname, \
 102         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 103         .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
 104 #define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \
 105          wcontrols, wncontrols)\
 106 (struct snd_soc_dapm_widget) { \
 107         .id = snd_soc_dapm_mixer, .name = wname, \
 108         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 109         .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
 110 #define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \
 111          wcontrols, wncontrols)\
 112 (struct snd_soc_dapm_widget) { \
 113         .id = snd_soc_dapm_mixer_named_ctl, .name = wname, \
 114         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 115         .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
 116 /* DEPRECATED: use SND_SOC_DAPM_SUPPLY */
 117 #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \
 118 (struct snd_soc_dapm_widget) { \
 119         .id = snd_soc_dapm_micbias, .name = wname, \
 120         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 121         .kcontrol_news = NULL, .num_kcontrols = 0}
 122 #define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \
 123 (struct snd_soc_dapm_widget) { \
 124         .id = snd_soc_dapm_switch, .name = wname, \
 125         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 126         .kcontrol_news = wcontrols, .num_kcontrols = 1}
 127 #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
 128 (struct snd_soc_dapm_widget) { \
 129         .id = snd_soc_dapm_mux, .name = wname, \
 130         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 131         .kcontrol_news = wcontrols, .num_kcontrols = 1}
 132 #define SND_SOC_DAPM_DEMUX(wname, wreg, wshift, winvert, wcontrols) \
 133 (struct snd_soc_dapm_widget) { \
 134         .id = snd_soc_dapm_demux, .name = wname, \
 135         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 136         .kcontrol_news = wcontrols, .num_kcontrols = 1}
 137
 138 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
 139 #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
 140          wcontrols) \
 141 (struct snd_soc_dapm_widget) { \
 142         .id = snd_soc_dapm_pga, .name = wname, \
 143         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 144         .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
 145 #define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \
 146          wcontrols)\
 147 (struct snd_soc_dapm_widget) { \
 148         .id = snd_soc_dapm_mixer, .name = wname, \
 149         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 150         .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
 151 #define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \
 152          wcontrols)\
 153 (struct snd_soc_dapm_widget) { \
 154         .id = snd_soc_dapm_mixer_named_ctl, .name = wname, \
 155         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 156         .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
 157
 158 /* path domain with event - event handler must return 0 for success */
 159 #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \
 160         wncontrols, wevent, wflags) \
 161 (struct snd_soc_dapm_widget) { \
 162         .id = snd_soc_dapm_pga, .name = wname, \
 163         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 164         .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 165         .event = wevent, .event_flags = wflags}
 166 #define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \
 167         wncontrols, wevent, wflags) \
 168 (struct snd_soc_dapm_widget) { \
 169         .id = snd_soc_dapm_out_drv, .name = wname, \
 170         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 171         .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 172         .event = wevent, .event_flags = wflags}
 173 #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
 174         wncontrols, wevent, wflags) \
 175 (struct snd_soc_dapm_widget) { \
 176         .id = snd_soc_dapm_mixer, .name = wname, \
 177         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 178         .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 179         .event = wevent, .event_flags = wflags}
 180 #define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
 181         wcontrols, wncontrols, wevent, wflags) \
 182 (struct snd_soc_dapm_widget) { \
 183         .id = snd_soc_dapm_mixer, .name = wname, \
 184         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 185         .kcontrol_news = wcontrols, \
 186         .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
 187 #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \
 188         wevent, wflags) \
 189 (struct snd_soc_dapm_widget) { \
 190         .id = snd_soc_dapm_switch, .name = wname, \
 191         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 192         .kcontrol_news = wcontrols, .num_kcontrols = 1, \
 193         .event = wevent, .event_flags = wflags}
 194 #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
 195         wevent, wflags) \
 196 (struct snd_soc_dapm_widget) { \
 197         .id = snd_soc_dapm_mux, .name = wname, \
 198         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 199         .kcontrol_news = wcontrols, .num_kcontrols = 1, \
 200         .event = wevent, .event_flags = wflags}
 201
 202 /* additional sequencing control within an event type */
 203 #define SND_SOC_DAPM_PGA_S(wname, wsubseq, wreg, wshift, winvert, \
 204         wevent, wflags) \
 205 (struct snd_soc_dapm_widget) { \
 206         .id = snd_soc_dapm_pga, .name = wname, \
 207         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 208         .event = wevent, .event_flags = wflags, \
 209         .subseq = wsubseq}
 210 #define SND_SOC_DAPM_SUPPLY_S(wname, wsubseq, wreg, wshift, winvert, wevent, \
 211         wflags) \
 212 (struct snd_soc_dapm_widget) { \
 213         .id = snd_soc_dapm_supply, .name = wname, \
 214         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 215         .event = wevent, .event_flags = wflags, .subseq = wsubseq}
 216
 217 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
 218 #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
 219         wevent, wflags) \
 220 (struct snd_soc_dapm_widget) { \
 221         .id = snd_soc_dapm_pga, .name = wname, \
 222         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 223         .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
 224         .event = wevent, .event_flags = wflags}
 225 #define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
 226         wevent, wflags) \
 227 (struct snd_soc_dapm_widget) { \
 228         .id = snd_soc_dapm_mixer, .name = wname, \
 229         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 230         .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
 231         .event = wevent, .event_flags = wflags}
 232 #define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \
 233         wcontrols, wevent, wflags) \
 234 (struct snd_soc_dapm_widget) { \
 235         .id = snd_soc_dapm_mixer, .name = wname, \
 236         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 237         .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
 238         .event = wevent, .event_flags = wflags}
 239
 240 /* events that are pre and post DAPM */
 241 #define SND_SOC_DAPM_PRE(wname, wevent) \
 242 (struct snd_soc_dapm_widget) { \
 243         .id = snd_soc_dapm_pre, .name = wname, .kcontrol_news = NULL, \
 244         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 245         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
 246 #define SND_SOC_DAPM_POST(wname, wevent) \
 247 (struct snd_soc_dapm_widget) { \
 248         .id = snd_soc_dapm_post, .name = wname, .kcontrol_news = NULL, \
 249         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 250         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
 251
 252 /* stream domain */
 253 #define SND_SOC_DAPM_AIF_IN(wname, stname, wchan, wreg, wshift, winvert) \
 254 (struct snd_soc_dapm_widget) { \
 255         .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
 256         .channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }
 257 #define SND_SOC_DAPM_AIF_IN_E(wname, stname, wchan, wreg, wshift, winvert, \
 258                               wevent, wflags)                           \
 259 (struct snd_soc_dapm_widget) { \
 260         .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
 261         .channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 262         .event = wevent, .event_flags = wflags }
 263 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wchan, wreg, wshift, winvert) \
 264 (struct snd_soc_dapm_widget) { \
 265         .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
 266         .channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }
 267 #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wchan, wreg, wshift, winvert, \
 268                              wevent, wflags)                            \
 269 (struct snd_soc_dapm_widget) { \
 270         .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
 271         .channel = wchan, SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 272         .event = wevent, .event_flags = wflags }
 273 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
 274 (struct snd_soc_dapm_widget) { \
 275         .id = snd_soc_dapm_dac, .name = wname, .sname = stname, \
 276         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert) }
 277 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
 278                            wevent, wflags)                              \
 279 (struct snd_soc_dapm_widget) { \
 280         .id = snd_soc_dapm_dac, .name = wname, .sname = stname, \
 281         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 282         .event = wevent, .event_flags = wflags}
 283
 284 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
 285 (struct snd_soc_dapm_widget) { \
 286         .id = snd_soc_dapm_adc, .name = wname, .sname = stname, \
 287         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), }
 288 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
 289                            wevent, wflags)                              \
 290 (struct snd_soc_dapm_widget) { \
 291         .id = snd_soc_dapm_adc, .name = wname, .sname = stname, \
 292         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 293         .event = wevent, .event_flags = wflags}
 294 #define SND_SOC_DAPM_CLOCK_SUPPLY(wname) \
 295 (struct snd_soc_dapm_widget) { \
 296         .id = snd_soc_dapm_clock_supply, .name = wname, \
 297         .reg = SND_SOC_NOPM, .event = dapm_clock_event, \
 298         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }
 299
 300 /* generic widgets */
 301 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
 302 (struct snd_soc_dapm_widget) { \
 303         .id = wid, .name = wname, .kcontrol_news = NULL, .num_kcontrols = 0, \
 304         .reg = wreg, .shift = wshift, .mask = wmask, \
 305         .on_val = won_val, .off_val = woff_val, }
 306 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
 307 (struct snd_soc_dapm_widget) { \
 308         .id = snd_soc_dapm_supply, .name = wname, \
 309         SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 310         .event = wevent, .event_flags = wflags}
 311 #define SND_SOC_DAPM_REGULATOR_SUPPLY(wname, wdelay, wflags)        \
 312 (struct snd_soc_dapm_widget) { \
 313         .id = snd_soc_dapm_regulator_supply, .name = wname, \
 314         .reg = SND_SOC_NOPM, .shift = wdelay, .event = dapm_regulator_event, \
 315         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD, \
 316         .on_val = wflags}
 317 #define SND_SOC_DAPM_PINCTRL(wname, active, sleep) \
 318 (struct snd_soc_dapm_widget) { \
 319         .id = snd_soc_dapm_pinctrl, .name = wname, \
 320         .priv = (&(struct snd_soc_dapm_pinctrl_priv) \
 321                 { .active_state = active, .sleep_state = sleep,}), \
 322         .reg = SND_SOC_NOPM, .event = dapm_pinctrl_event, \
 323         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }
 324
 325
 326
 327 /* dapm kcontrol types */
 328 #define SOC_DAPM_DOUBLE(xname, reg, lshift, rshift, max, invert) \
 329 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 330         .info = snd_soc_info_volsw, \
 331         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 332         .private_value = SOC_DOUBLE_VALUE(reg, lshift, rshift, max, invert, 0) }
 333 #define SOC_DAPM_DOUBLE_R(xname, lreg, rreg, shift, max, invert) \
 334 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 335         .info = snd_soc_info_volsw, \
 336         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 337         .private_value = SOC_DOUBLE_R_VALUE(lreg, rreg, shift, max, invert) }
 338 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
 339 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 340         .info = snd_soc_info_volsw, \
 341         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 342         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
 343 #define SOC_DAPM_SINGLE_AUTODISABLE(xname, reg, shift, max, invert) \
 344 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 345         .info = snd_soc_info_volsw, \
 346         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 347         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) }
 348 #define SOC_DAPM_SINGLE_VIRT(xname, max) \
 349         SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0)
 350 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
 351 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 352         .info = snd_soc_info_volsw, \
 353         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 354         .tlv.p = (tlv_array), \
 355         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 356         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
 357 #define SOC_DAPM_SINGLE_TLV_AUTODISABLE(xname, reg, shift, max, invert, tlv_array) \
 358 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 359         .info = snd_soc_info_volsw, \
 360         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 361         .tlv.p = (tlv_array), \
 362         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 363         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) }
 364 #define SOC_DAPM_SINGLE_TLV_VIRT(xname, max, tlv_array) \
 365         SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0, tlv_array)
 366 #define SOC_DAPM_ENUM(xname, xenum) \
 367 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 368         .info = snd_soc_info_enum_double, \
 369         .get = snd_soc_dapm_get_enum_double, \
 370         .put = snd_soc_dapm_put_enum_double, \
 371         .private_value = (unsigned long)&xenum }
 372 #define SOC_DAPM_ENUM_EXT(xname, xenum, xget, xput) \
 373 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 374         .info = snd_soc_info_enum_double, \
 375         .get = xget, \
 376         .put = xput, \
 377         .private_value = (unsigned long)&xenum }
 378 #define SOC_DAPM_PIN_SWITCH(xname) \
 379 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
 380         .info = snd_soc_dapm_info_pin_switch, \
 381         .get = snd_soc_dapm_get_pin_switch, \
 382         .put = snd_soc_dapm_put_pin_switch, \
 383         .private_value = (unsigned long)xname }
 384
 385 /* dapm stream operations */
 386 #define SND_SOC_DAPM_STREAM_NOP                 0x0
 387 #define SND_SOC_DAPM_STREAM_START               0x1
 388 #define SND_SOC_DAPM_STREAM_STOP                0x2
 389 #define SND_SOC_DAPM_STREAM_SUSPEND             0x4
 390 #define SND_SOC_DAPM_STREAM_RESUME              0x8
 391 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH          0x10
 392 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE       0x20
 393
 394 /* dapm event types */
 395 #define SND_SOC_DAPM_PRE_PMU            0x1     /* before widget power up */
 396 #define SND_SOC_DAPM_POST_PMU           0x2     /* after  widget power up */
 397 #define SND_SOC_DAPM_PRE_PMD            0x4     /* before widget power down */
 398 #define SND_SOC_DAPM_POST_PMD           0x8     /* after  widget power down */
 399 #define SND_SOC_DAPM_PRE_REG            0x10    /* before audio path setup */
 400 #define SND_SOC_DAPM_POST_REG           0x20    /* after  audio path setup */
 401 #define SND_SOC_DAPM_WILL_PMU           0x40    /* called at start of sequence */
 402 #define SND_SOC_DAPM_WILL_PMD           0x80    /* called at start of sequence */
 403 #define SND_SOC_DAPM_PRE_POST_PMD       (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
 404 #define SND_SOC_DAPM_PRE_POST_PMU       (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU)
 405
 406 /* convenience event type detection */
 407 #define SND_SOC_DAPM_EVENT_ON(e)        (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
 408 #define SND_SOC_DAPM_EVENT_OFF(e)       (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
 409
 410 /* regulator widget flags */
 411 #define SND_SOC_DAPM_REGULATOR_BYPASS   0x1     /* bypass when disabled */
 412
 413 struct snd_soc_dapm_widget;
 414 enum snd_soc_dapm_type;
 415 struct snd_soc_dapm_path;
 416 struct snd_soc_dapm_pin;
 417 struct snd_soc_dapm_route;
 418 struct snd_soc_dapm_context;
 419 struct regulator;
 420 struct snd_soc_dapm_widget_list;
 421 struct snd_soc_dapm_update;
 422 enum snd_soc_dapm_direction;
 423
 424 /*
 425  * Bias levels
 426  *
 427  * @ON:      Bias is fully on for audio playback and capture operations.
 428  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 429  *           stream start and stop operations.
 430  * @STANDBY: Low power standby state when no playback/capture operations are
 431  *           in progress. NOTE: The transition time between STANDBY and ON
 432  *           should be as fast as possible and no longer than 10ms.
 433  * @OFF:     Power Off. No restrictions on transition times.
 434  */
 435 enum snd_soc_bias_level {
 436         SND_SOC_BIAS_OFF = 0,
 437         SND_SOC_BIAS_STANDBY = 1,
 438         SND_SOC_BIAS_PREPARE = 2,
 439         SND_SOC_BIAS_ON = 3,
 440 };
 441
 442 int dapm_regulator_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
 443 int dapm_clock_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
 444 int dapm_pinctrl_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
 445
 446 /* dapm controls */
 447 int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
 448 int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
 449 int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
 450         struct snd_ctl_elem_value *ucontrol);
 451 int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
 452         struct snd_ctl_elem_value *ucontrol);
 453 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
 454         struct snd_ctl_elem_info *uinfo);
 455 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
 456         struct snd_ctl_elem_value *uncontrol);
 457 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
 458         struct snd_ctl_elem_value *uncontrol);
 459 int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
 460         const struct snd_soc_dapm_widget *widget, unsigned int num);
 461 struct snd_soc_dapm_widget *snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
 462                 const struct snd_soc_dapm_widget *widget);
 463 struct snd_soc_dapm_widget *snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
 464                 const struct snd_soc_dapm_widget *widget);
 465 int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, struct snd_soc_dai *dai);
 466 void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w);
 467 int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card);
 468 void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card);
 469
 470 int snd_soc_dapm_update_dai(struct snd_pcm_substream *substream,
 471                             struct snd_pcm_hw_params *params, struct snd_soc_dai *dai);
 472 int snd_soc_dapm_widget_name_cmp(struct snd_soc_dapm_widget *widget, const char *s);
 473
 474 /* dapm path setup */
 475 int snd_soc_dapm_new_widgets(struct snd_soc_card *card);
 476 void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
 477 void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm,
 478                        struct snd_soc_card *card, struct snd_soc_component *component);
 479 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
 480                             const struct snd_soc_dapm_route *route, int num);
 481 int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
 482                             const struct snd_soc_dapm_route *route, int num);
 483 int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
 484                              const struct snd_soc_dapm_route *route, int num);
 485 void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w);
 486
 487 /* dapm events */
 488 void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, int event);
 489 void snd_soc_dapm_stream_stop(struct snd_soc_pcm_runtime *rtd, int stream);
 490 void snd_soc_dapm_shutdown(struct snd_soc_card *card);
 491
 492 /* external DAPM widget events */
 493 int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm,
 494                 struct snd_kcontrol *kcontrol, int connect, struct snd_soc_dapm_update *update);
 495 int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm,
 496                 struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e,
 497                 struct snd_soc_dapm_update *update);
 498
 499 /* dapm sys fs - used by the core */
 500 extern struct attribute *soc_dapm_dev_attrs[];
 501 void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, struct dentry *parent);
 502
 503 /* dapm audio pin control and status */
 504 int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin);
 505 int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin);
 506 int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, const char *pin);
 507 int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin);
 508 int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin);
 509 int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin);
 510 int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, const char *pin);
 511 int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm);
 512 int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm);
 513 int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin);
 514 int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin);
 515 int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, const char *pin);
 516 unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol);
 517
 518 /* Mostly internal - should not normally be used */
 519 void dapm_mark_endpoints_dirty(struct snd_soc_card *card);
 520
 521 /* dapm path query */
 522 int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
 523         struct snd_soc_dapm_widget_list **list,
 524         bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, enum snd_soc_dapm_direction));
 525 void snd_soc_dapm_dai_free_widgets(struct snd_soc_dapm_widget_list **list);
 526
 527 struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm(struct snd_kcontrol *kcontrol);
 528 struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget(struct snd_kcontrol *kcontrol);
 529
 530 int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level);
 531
 532 /* dapm widget types */
 533 enum snd_soc_dapm_type {
 534         snd_soc_dapm_input = 0,         /* input pin */
 535         snd_soc_dapm_output,            /* output pin */
 536         snd_soc_dapm_mux,               /* selects 1 analog signal from many inputs */
 537         snd_soc_dapm_demux,             /* connects the input to one of multiple outputs */
 538         snd_soc_dapm_mixer,             /* mixes several analog signals together */
 539         snd_soc_dapm_mixer_named_ctl,   /* mixer with named controls */
 540         snd_soc_dapm_pga,               /* programmable gain/attenuation (volume) */
 541         snd_soc_dapm_out_drv,           /* output driver */
 542         snd_soc_dapm_adc,               /* analog to digital converter */
 543         snd_soc_dapm_dac,               /* digital to analog converter */
 544         snd_soc_dapm_micbias,           /* microphone bias (power) - DEPRECATED: use snd_soc_dapm_supply */
 545         snd_soc_dapm_mic,               /* microphone */
 546         snd_soc_dapm_hp,                /* headphones */
 547         snd_soc_dapm_spk,               /* speaker */
 548         snd_soc_dapm_line,              /* line input/output */
 549         snd_soc_dapm_switch,            /* analog switch */
 550         snd_soc_dapm_vmid,              /* codec bias/vmid - to minimise pops */
 551         snd_soc_dapm_pre,               /* machine specific pre widget - exec first */
 552         snd_soc_dapm_post,              /* machine specific post widget - exec last */
 553         snd_soc_dapm_supply,            /* power/clock supply */
 554         snd_soc_dapm_pinctrl,           /* pinctrl */
 555         snd_soc_dapm_regulator_supply,  /* external regulator */
 556         snd_soc_dapm_clock_supply,      /* external clock */
 557         snd_soc_dapm_aif_in,            /* audio interface input */
 558         snd_soc_dapm_aif_out,           /* audio interface output */
 559         snd_soc_dapm_siggen,            /* signal generator */
 560         snd_soc_dapm_sink,
 561         snd_soc_dapm_dai_in,            /* link to DAI structure */
 562         snd_soc_dapm_dai_out,
 563         snd_soc_dapm_dai_link,          /* link between two DAI structures */
 564         snd_soc_dapm_kcontrol,          /* Auto-disabled kcontrol */
 565         snd_soc_dapm_buffer,            /* DSP/CODEC internal buffer */
 566         snd_soc_dapm_scheduler,         /* DSP/CODEC internal scheduler */
 567         snd_soc_dapm_effect,            /* DSP/CODEC effect component */
 568         snd_soc_dapm_src,               /* DSP/CODEC SRC component */
 569         snd_soc_dapm_asrc,              /* DSP/CODEC ASRC component */
 570         snd_soc_dapm_encoder,           /* FW/SW audio encoder component */
 571         snd_soc_dapm_decoder,           /* FW/SW audio decoder component */
 572
 573         /* Don't edit below this line */
 574         SND_SOC_DAPM_TYPE_COUNT
 575 };
 576
 577 /*
 578  * DAPM audio route definition.
 579  *
 580  * Defines an audio route originating at source via control and finishing
 581  * at sink.
 582  */
 583 struct snd_soc_dapm_route {
 584         const char *sink;
 585         const char *control;
 586         const char *source;
 587
 588         /* Note: currently only supported for links where source is a supply */
 589         int (*connected)(struct snd_soc_dapm_widget *source,
 590                          struct snd_soc_dapm_widget *sink);
 591
 592         struct snd_soc_dobj dobj;
 593 };
 594
 595 /* dapm audio path between two widgets */
 596 struct snd_soc_dapm_path {
 597         const char *name;
 598
 599         /*
 600          * source (input) and sink (output) widgets
 601          * The union is for convience, since it is a lot nicer to type
 602          * p->source, rather than p->node[SND_SOC_DAPM_DIR_IN]
 603          */
 604         union {
 605                 struct {
 606                         struct snd_soc_dapm_widget *source;
 607                         struct snd_soc_dapm_widget *sink;
 608                 };
 609                 struct snd_soc_dapm_widget *node[2];
 610         };
 611
 612         /* status */
 613         u32 connect:1;          /* source and sink widgets are connected */
 614         u32 walking:1;          /* path is in the process of being walked */
 615         u32 weak:1;             /* path ignored for power management */
 616         u32 is_supply:1;        /* At least one of the connected widgets is a supply */
 617
 618         int (*connected)(struct snd_soc_dapm_widget *source,
 619                          struct snd_soc_dapm_widget *sink);
 620
 621         struct list_head list_node[2];
 622         struct list_head list_kcontrol;
 623         struct list_head list;
 624 };
 625
 626 /* dapm widget */
 627 struct snd_soc_dapm_widget {
 628         enum snd_soc_dapm_type id;
 629         const char *name;                       /* widget name */
 630         const char *sname;                      /* stream name */
 631         struct list_head list;
 632         struct snd_soc_dapm_context *dapm;
 633
 634         void *priv;                             /* widget specific data */
 635         struct regulator *regulator;            /* attached regulator */
 636         struct pinctrl *pinctrl;                /* attached pinctrl */
 637
 638         /* dapm control */
 639         int reg;                                /* negative reg = no direct dapm */
 640         unsigned char shift;                    /* bits to shift */
 641         unsigned int mask;                      /* non-shifted mask */
 642         unsigned int on_val;                    /* on state value */
 643         unsigned int off_val;                   /* off state value */
 644         unsigned char power:1;                  /* block power status */
 645         unsigned char active:1;                 /* active stream on DAC, ADC's */
 646         unsigned char connected:1;              /* connected codec pin */
 647         unsigned char new:1;                    /* cnew complete */
 648         unsigned char force:1;                  /* force state */
 649         unsigned char ignore_suspend:1;         /* kept enabled over suspend */
 650         unsigned char new_power:1;              /* power from this run */
 651         unsigned char power_checked:1;          /* power checked this run */
 652         unsigned char is_supply:1;              /* Widget is a supply type widget */
 653         unsigned char is_ep:2;                  /* Widget is a endpoint type widget */
 654         unsigned char no_wname_in_kcontrol_name:1; /* No widget name prefix in kcontrol name */
 655         int subseq;                             /* sort within widget type */
 656
 657         int (*power_check)(struct snd_soc_dapm_widget *w);
 658
 659         /* external events */
 660         unsigned short event_flags;             /* flags to specify event types */
 661         int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);
 662
 663         /* kcontrols that relate to this widget */
 664         int num_kcontrols;
 665         const struct snd_kcontrol_new *kcontrol_news;
 666         struct snd_kcontrol **kcontrols;
 667         struct snd_soc_dobj dobj;
 668
 669         /* widget input and output edges */
 670         struct list_head edges[2];
 671
 672         /* used during DAPM updates */
 673         struct list_head work_list;
 674         struct list_head power_list;
 675         struct list_head dirty;
 676         int endpoints[2];
 677
 678         struct clk *clk;
 679
 680         int channel;
 681 };
 682
 683 struct snd_soc_dapm_update {
 684         struct snd_kcontrol *kcontrol;
 685         int reg;
 686         int mask;
 687         int val;
 688         int reg2;
 689         int mask2;
 690         int val2;
 691         bool has_second_set;
 692 };
 693
 694 /* DAPM context */
 695 struct snd_soc_dapm_context {
 696         enum snd_soc_bias_level bias_level;
 697
 698         /* bit field */
 699         unsigned int idle_bias_off:1;           /* Use BIAS_OFF instead of STANDBY */
 700         unsigned int suspend_bias_off:1;        /* Use BIAS_OFF in suspend if the DAPM is idle */
 701
 702         struct device *dev;                     /* from parent - for debug */
 703         struct snd_soc_component *component;    /* parent component */
 704         struct snd_soc_card *card;              /* parent card */
 705
 706         /* used during DAPM updates */
 707         enum snd_soc_bias_level target_bias_level;
 708         struct list_head list;
 709
 710         struct snd_soc_dapm_widget *wcache_sink;
 711         struct snd_soc_dapm_widget *wcache_source;
 712
 713 #ifdef CONFIG_DEBUG_FS
 714         struct dentry *debugfs_dapm;
 715 #endif
 716 };
 717
 718 /* A list of widgets associated with an object, typically a snd_kcontrol */
 719 struct snd_soc_dapm_widget_list {
 720         int num_widgets;
 721         struct snd_soc_dapm_widget *widgets[] __counted_by(num_widgets);
 722 };
 723
 724 #define for_each_dapm_widgets(list, i, widget)                          \
 725         for ((i) = 0;                                                   \
 726              (i) < list->num_widgets && (widget = list->widgets[i]);    \
 727              (i)++)
 728
 729 struct snd_soc_dapm_stats {
 730         int power_checks;
 731         int path_checks;
 732         int neighbour_checks;
 733 };
 734
 735 struct snd_soc_dapm_pinctrl_priv {
 736         const char *active_state;
 737         const char *sleep_state;
 738 };
 739
 740 /**
 741  * snd_soc_dapm_init_bias_level() - Initialize DAPM bias level
 742  * @dapm: The DAPM context to initialize
 743  * @level: The DAPM level to initialize to
 744  *
 745  * This function only sets the driver internal state of the DAPM level and will
 746  * not modify the state of the device. Hence it should not be used during normal
 747  * operation, but only to synchronize the internal state to the device state.
 748  * E.g. during driver probe to set the DAPM level to the one corresponding with
 749  * the power-on reset state of the device.
 750  *
 751  * To change the DAPM state of the device use snd_soc_dapm_set_bias_level().
 752  */
 753 static inline void snd_soc_dapm_init_bias_level(
 754         struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
 755 {
 756         dapm->bias_level = level;
 757 }
 758
 759 /**
 760  * snd_soc_dapm_get_bias_level() - Get current DAPM bias level
 761  * @dapm: The context for which to get the bias level
 762  *
 763  * Returns: The current bias level of the passed DAPM context.
 764  */
 765 static inline enum snd_soc_bias_level snd_soc_dapm_get_bias_level(
 766         struct snd_soc_dapm_context *dapm)
 767 {
 768         return dapm->bias_level;
 769 }
 770
 771 enum snd_soc_dapm_direction {
 772         SND_SOC_DAPM_DIR_IN,
 773         SND_SOC_DAPM_DIR_OUT
 774 };
 775
 776 #define SND_SOC_DAPM_DIR_TO_EP(x) BIT(x)
 777
 778 #define SND_SOC_DAPM_EP_SOURCE  SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_IN)
 779 #define SND_SOC_DAPM_EP_SINK    SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_OUT)
 780
 781 /**
 782  * snd_soc_dapm_widget_for_each_path - Iterates over all paths in the
 783  *   specified direction of a widget
 784  * @w: The widget
 785  * @dir: Whether to iterate over the paths where the specified widget is the
 786  *       incoming or outgoing widgets
 787  * @p: The path iterator variable
 788  */
 789 #define snd_soc_dapm_widget_for_each_path(w, dir, p) \
 790         list_for_each_entry(p, &w->edges[dir], list_node[dir])
 791
 792 /**
 793  * snd_soc_dapm_widget_for_each_path_safe - Iterates over all paths in the
 794  *   specified direction of a widget
 795  * @w: The widget
 796  * @dir: Whether to iterate over the paths where the specified widget is the
 797  *       incoming or outgoing widgets
 798  * @p: The path iterator variable
 799  * @next_p: Temporary storage for the next path
 800  *
 801  *  This function works like snd_soc_dapm_widget_for_each_path, expect that
 802  *  it is safe to remove the current path from the list while iterating
 803  */
 804 #define snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) \
 805         list_for_each_entry_safe(p, next_p, &w->edges[dir], list_node[dir])
 806
 807 /**
 808  * snd_soc_dapm_widget_for_each_sink_path - Iterates over all paths leaving a
 809  *  widget
 810  * @w: The widget
 811  * @p: The path iterator variable
 812  */
 813 #define snd_soc_dapm_widget_for_each_sink_path(w, p) \
 814         snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_IN, p)
 815
 816 /**
 817  * snd_soc_dapm_widget_for_each_source_path - Iterates over all paths leading to
 818  *  a widget
 819  * @w: The widget
 820  * @p: The path iterator variable
 821  */
 822 #define snd_soc_dapm_widget_for_each_source_path(w, p) \
 823         snd_soc_dapm_widget_for_each_path(w, SND_SOC_DAPM_DIR_OUT, p)
 824
 825 #endif