include/sound/soc-dapm.h

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