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