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