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/device.h>
  17 #include <linux/types.h>
  18 #include <sound/control.h>
  19
  20 /* widget has no PM register bit */
  21 #define SND_SOC_NOPM    -1
  22
  23 /*
  24  * SoC dynamic audio power management
  25  *
  26  * We can have 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_INPUT(wname) \
  50 {       .id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \
  51         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  52 #define SND_SOC_DAPM_OUTPUT(wname) \
  53 {       .id = snd_soc_dapm_output, .name = wname, .kcontrol_news = NULL, \
  54         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  55 #define SND_SOC_DAPM_MIC(wname, wevent) \
  56 {       .id = snd_soc_dapm_mic, .name = wname, .kcontrol_news = NULL, \
  57         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  58         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
  59 #define SND_SOC_DAPM_HP(wname, wevent) \
  60 {       .id = snd_soc_dapm_hp, .name = wname, .kcontrol_news = NULL, \
  61         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  62         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  63 #define SND_SOC_DAPM_SPK(wname, wevent) \
  64 {       .id = snd_soc_dapm_spk, .name = wname, .kcontrol_news = NULL, \
  65         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  66         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  67 #define SND_SOC_DAPM_LINE(wname, wevent) \
  68 {       .id = snd_soc_dapm_line, .name = wname, .kcontrol_news = NULL, \
  69         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  70         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  71
  72 /* path domain */
  73 #define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\
  74          wcontrols, wncontrols) \
  75 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
  76         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
  77 #define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\
  78          wcontrols, wncontrols) \
  79 {       .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
  80         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
  81 #define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \
  82          wcontrols, wncontrols)\
  83 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
  84         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
  85 #define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \
  86          wcontrols, wncontrols)\
  87 {       .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
  88         .shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
  89         .num_kcontrols = wncontrols}
  90 #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \
  91 {       .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
  92         .invert = winvert, .kcontrol_news = NULL, .num_kcontrols = 0}
  93 #define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \
  94 {       .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
  95         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
  96 #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
  97 {       .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
  98         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
  99 #define SND_SOC_DAPM_VIRT_MUX(wname, wreg, wshift, winvert, wcontrols) \
 100 {       .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \
 101         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
 102 #define SND_SOC_DAPM_VALUE_MUX(wname, wreg, wshift, winvert, wcontrols) \
 103 {       .id = snd_soc_dapm_value_mux, .name = wname, .reg = wreg, \
 104         .shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
 105         .num_kcontrols = 1}
 106
 107 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
 108 #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
 109          wcontrols) \
 110 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
 111         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
 112 #define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \
 113          wcontrols)\
 114 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 115         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
 116 #define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \
 117          wcontrols)\
 118 {       .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
 119         .shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
 120         .num_kcontrols = ARRAY_SIZE(wcontrols)}
 121
 122 /* path domain with event - event handler must return 0 for success */
 123 #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \
 124         wncontrols, wevent, wflags) \
 125 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
 126         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 127         .event = wevent, .event_flags = wflags}
 128 #define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \
 129         wncontrols, wevent, wflags) \
 130 {       .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
 131         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 132         .event = wevent, .event_flags = wflags}
 133 #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
 134         wncontrols, wevent, wflags) \
 135 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 136         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 137         .event = wevent, .event_flags = wflags}
 138 #define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
 139         wcontrols, wncontrols, wevent, wflags) \
 140 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 141         .invert = winvert, .kcontrol_news = wcontrols, \
 142         .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
 143 #define SND_SOC_DAPM_MICBIAS_E(wname, wreg, wshift, winvert, wevent, wflags) \
 144 {       .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
 145         .invert = winvert, .kcontrol_news = NULL, .num_kcontrols = 0, \
 146         .event = wevent, .event_flags = wflags}
 147 #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \
 148         wevent, wflags) \
 149 {       .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
 150         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
 151         .event = wevent, .event_flags = wflags}
 152 #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
 153         wevent, wflags) \
 154 {       .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
 155         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
 156         .event = wevent, .event_flags = wflags}
 157 #define SND_SOC_DAPM_VIRT_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
 158         wevent, wflags) \
 159 {       .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \
 160         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
 161         .event = wevent, .event_flags = wflags}
 162
 163 /* additional sequencing control within an event type */
 164 #define SND_SOC_DAPM_PGA_S(wname, wsubseq, wreg, wshift, winvert, \
 165         wevent, wflags) \
 166 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
 167         .invert = winvert, .event = wevent, .event_flags = wflags, \
 168         .subseq = wsubseq}
 169 #define SND_SOC_DAPM_SUPPLY_S(wname, wsubseq, wreg, wshift, winvert, wevent, \
 170         wflags) \
 171 {       .id = snd_soc_dapm_supply, .name = wname, .reg = wreg,  \
 172         .shift = wshift, .invert = winvert, .event = wevent, \
 173         .event_flags = wflags, .subseq = wsubseq}
 174
 175 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
 176 #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
 177         wevent, wflags) \
 178 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
 179         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
 180         .event = wevent, .event_flags = wflags}
 181 #define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
 182         wevent, wflags) \
 183 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 184         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
 185         .event = wevent, .event_flags = wflags}
 186 #define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \
 187         wcontrols, wevent, wflags) \
 188 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 189         .invert = winvert, .kcontrol_news = wcontrols, \
 190         .num_kcontrols = ARRAY_SIZE(wcontrols), .event = wevent, .event_flags = wflags}
 191
 192 /* events that are pre and post DAPM */
 193 #define SND_SOC_DAPM_PRE(wname, wevent) \
 194 {       .id = snd_soc_dapm_pre, .name = wname, .kcontrol_news = NULL, \
 195         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 196         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
 197 #define SND_SOC_DAPM_POST(wname, wevent) \
 198 {       .id = snd_soc_dapm_post, .name = wname, .kcontrol_news = NULL, \
 199         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 200         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
 201
 202 /* stream domain */
 203 #define SND_SOC_DAPM_AIF_IN(wname, stname, wslot, wreg, wshift, winvert) \
 204 {       .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
 205         .reg = wreg, .shift = wshift, .invert = winvert }
 206 #define SND_SOC_DAPM_AIF_IN_E(wname, stname, wslot, wreg, wshift, winvert, \
 207                               wevent, wflags)                           \
 208 {       .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
 209         .reg = wreg, .shift = wshift, .invert = winvert, \
 210         .event = wevent, .event_flags = wflags }
 211 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \
 212 {       .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
 213         .reg = wreg, .shift = wshift, .invert = winvert }
 214 #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wslot, wreg, wshift, winvert, \
 215                              wevent, wflags)                            \
 216 {       .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
 217         .reg = wreg, .shift = wshift, .invert = winvert, \
 218         .event = wevent, .event_flags = wflags }
 219 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
 220 {       .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
 221         .shift = wshift, .invert = winvert}
 222 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
 223                            wevent, wflags)                              \
 224 {       .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
 225         .shift = wshift, .invert = winvert, \
 226         .event = wevent, .event_flags = wflags}
 227 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
 228 {       .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
 229         .shift = wshift, .invert = winvert}
 230 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
 231                            wevent, wflags)                              \
 232 {       .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
 233         .shift = wshift, .invert = winvert, \
 234         .event = wevent, .event_flags = wflags}
 235
 236 /* generic widgets */
 237 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
 238 {       .id = wid, .name = wname, .kcontrol_news = NULL, .num_kcontrols = 0, \
 239         .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \
 240         .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \
 241         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
 242 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
 243 {       .id = snd_soc_dapm_supply, .name = wname, .reg = wreg,  \
 244         .shift = wshift, .invert = winvert, .event = wevent, \
 245         .event_flags = wflags}
 246
 247 /* dapm kcontrol types */
 248 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
 249 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 250         .info = snd_soc_info_volsw, \
 251         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 252         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
 253 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
 254 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 255         .info = snd_soc_info_volsw, \
 256         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 257         .tlv.p = (tlv_array), \
 258         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 259         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
 260 #define SOC_DAPM_ENUM(xname, xenum) \
 261 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 262         .info = snd_soc_info_enum_double, \
 263         .get = snd_soc_dapm_get_enum_double, \
 264         .put = snd_soc_dapm_put_enum_double, \
 265         .private_value = (unsigned long)&xenum }
 266 #define SOC_DAPM_ENUM_VIRT(xname, xenum)                    \
 267 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 268         .info = snd_soc_info_enum_double, \
 269         .get = snd_soc_dapm_get_enum_virt, \
 270         .put = snd_soc_dapm_put_enum_virt, \
 271         .private_value = (unsigned long)&xenum }
 272 #define SOC_DAPM_ENUM_EXT(xname, xenum, xget, xput) \
 273 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 274         .info = snd_soc_info_enum_double, \
 275         .get = xget, \
 276         .put = xput, \
 277         .private_value = (unsigned long)&xenum }
 278 #define SOC_DAPM_VALUE_ENUM(xname, xenum) \
 279 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 280         .info = snd_soc_info_enum_double, \
 281         .get = snd_soc_dapm_get_value_enum_double, \
 282         .put = snd_soc_dapm_put_value_enum_double, \
 283         .private_value = (unsigned long)&xenum }
 284 #define SOC_DAPM_PIN_SWITCH(xname) \
 285 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
 286         .info = snd_soc_dapm_info_pin_switch, \
 287         .get = snd_soc_dapm_get_pin_switch, \
 288         .put = snd_soc_dapm_put_pin_switch, \
 289         .private_value = (unsigned long)xname }
 290
 291 /* dapm stream operations */
 292 #define SND_SOC_DAPM_STREAM_NOP                 0x0
 293 #define SND_SOC_DAPM_STREAM_START               0x1
 294 #define SND_SOC_DAPM_STREAM_STOP                0x2
 295 #define SND_SOC_DAPM_STREAM_SUSPEND             0x4
 296 #define SND_SOC_DAPM_STREAM_RESUME              0x8
 297 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH  0x10
 298 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE       0x20
 299
 300 /* dapm event types */
 301 #define SND_SOC_DAPM_PRE_PMU    0x1     /* before widget power up */
 302 #define SND_SOC_DAPM_POST_PMU   0x2             /* after widget power up */
 303 #define SND_SOC_DAPM_PRE_PMD    0x4     /* before widget power down */
 304 #define SND_SOC_DAPM_POST_PMD   0x8             /* after widget power down */
 305 #define SND_SOC_DAPM_PRE_REG    0x10    /* before audio path setup */
 306 #define SND_SOC_DAPM_POST_REG   0x20    /* after audio path setup */
 307 #define SND_SOC_DAPM_PRE_POST_PMD \
 308                                 (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
 309
 310 /* convenience event type detection */
 311 #define SND_SOC_DAPM_EVENT_ON(e)        \
 312         (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
 313 #define SND_SOC_DAPM_EVENT_OFF(e)       \
 314         (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
 315
 316 struct snd_soc_dapm_widget;
 317 enum snd_soc_dapm_type;
 318 struct snd_soc_dapm_path;
 319 struct snd_soc_dapm_pin;
 320 struct snd_soc_dapm_route;
 321 struct snd_soc_dapm_context;
 322
 323 int dapm_reg_event(struct snd_soc_dapm_widget *w,
 324                    struct snd_kcontrol *kcontrol, int event);
 325
 326 /* dapm controls */
 327 int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 328         struct snd_ctl_elem_value *ucontrol);
 329 int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
 330         struct snd_ctl_elem_value *ucontrol);
 331 int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
 332         struct snd_ctl_elem_value *ucontrol);
 333 int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
 334         struct snd_ctl_elem_value *ucontrol);
 335 int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol,
 336         struct snd_ctl_elem_value *ucontrol);
 337 int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol,
 338         struct snd_ctl_elem_value *ucontrol);
 339 int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
 340         struct snd_ctl_elem_value *ucontrol);
 341 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
 342         struct snd_ctl_elem_value *ucontrol);
 343 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
 344         struct snd_ctl_elem_info *uinfo);
 345 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
 346         struct snd_ctl_elem_value *uncontrol);
 347 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
 348         struct snd_ctl_elem_value *uncontrol);
 349 int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
 350         const struct snd_soc_dapm_widget *widget);
 351 int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
 352         const struct snd_soc_dapm_widget *widget,
 353         int num);
 354
 355 /* dapm path setup */
 356 int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm);
 357 void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
 358 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
 359                             const struct snd_soc_dapm_route *route, int num);
 360 int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
 361                              const struct snd_soc_dapm_route *route, int num);
 362
 363 /* dapm events */
 364 int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd,
 365         const char *stream, int event);
 366 void snd_soc_dapm_shutdown(struct snd_soc_card *card);
 367
 368 /* dapm sys fs - used by the core */
 369 int snd_soc_dapm_sys_add(struct device *dev);
 370 void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
 371                                 struct dentry *parent);
 372
 373 /* dapm audio pin control and status */
 374 int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm,
 375                             const char *pin);
 376 int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm,
 377                              const char *pin);
 378 int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin);
 379 int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
 380                                 const char *pin);
 381 int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm);
 382 int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
 383                                   const char *pin);
 384 int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
 385                                 const char *pin);
 386 void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec);
 387
 388 /* Mostly internal - should not normally be used */
 389 void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason);
 390
 391 /* dapm widget types */
 392 enum snd_soc_dapm_type {
 393         snd_soc_dapm_input = 0,         /* input pin */
 394         snd_soc_dapm_output,            /* output pin */
 395         snd_soc_dapm_mux,                       /* selects 1 analog signal from many inputs */
 396         snd_soc_dapm_virt_mux,                  /* virtual version of snd_soc_dapm_mux */
 397         snd_soc_dapm_value_mux,                 /* selects 1 analog signal from many inputs */
 398         snd_soc_dapm_mixer,                     /* mixes several analog signals together */
 399         snd_soc_dapm_mixer_named_ctl,           /* mixer with named controls */
 400         snd_soc_dapm_pga,                       /* programmable gain/attenuation (volume) */
 401         snd_soc_dapm_out_drv,                   /* output driver */
 402         snd_soc_dapm_adc,                       /* analog to digital converter */
 403         snd_soc_dapm_dac,                       /* digital to analog converter */
 404         snd_soc_dapm_micbias,           /* microphone bias (power) */
 405         snd_soc_dapm_mic,                       /* microphone */
 406         snd_soc_dapm_hp,                        /* headphones */
 407         snd_soc_dapm_spk,                       /* speaker */
 408         snd_soc_dapm_line,                      /* line input/output */
 409         snd_soc_dapm_switch,            /* analog switch */
 410         snd_soc_dapm_vmid,                      /* codec bias/vmid - to minimise pops */
 411         snd_soc_dapm_pre,                       /* machine specific pre widget - exec first */
 412         snd_soc_dapm_post,                      /* machine specific post widget - exec last */
 413         snd_soc_dapm_supply,            /* power/clock supply */
 414         snd_soc_dapm_aif_in,            /* audio interface input */
 415         snd_soc_dapm_aif_out,           /* audio interface output */
 416         snd_soc_dapm_siggen,            /* signal generator */
 417 };
 418
 419 /*
 420  * DAPM audio route definition.
 421  *
 422  * Defines an audio route originating at source via control and finishing
 423  * at sink.
 424  */
 425 struct snd_soc_dapm_route {
 426         const char *sink;
 427         const char *control;
 428         const char *source;
 429
 430         /* Note: currently only supported for links where source is a supply */
 431         int (*connected)(struct snd_soc_dapm_widget *source,
 432                          struct snd_soc_dapm_widget *sink);
 433 };
 434
 435 /* dapm audio path between two widgets */
 436 struct snd_soc_dapm_path {
 437         char *name;
 438         char *long_name;
 439
 440         /* source (input) and sink (output) widgets */
 441         struct snd_soc_dapm_widget *source;
 442         struct snd_soc_dapm_widget *sink;
 443         struct snd_kcontrol *kcontrol;
 444
 445         /* status */
 446         u32 connect:1;  /* source and sink widgets are connected */
 447         u32 walked:1;   /* path has been walked */
 448         u32 weak:1;     /* path ignored for power management */
 449
 450         int (*connected)(struct snd_soc_dapm_widget *source,
 451                          struct snd_soc_dapm_widget *sink);
 452
 453         struct list_head list_source;
 454         struct list_head list_sink;
 455         struct list_head list;
 456 };
 457
 458 /* dapm widget */
 459 struct snd_soc_dapm_widget {
 460         enum snd_soc_dapm_type id;
 461         char *name;             /* widget name */
 462         char *sname;    /* stream name */
 463         struct snd_soc_codec *codec;
 464         struct snd_soc_platform *platform;
 465         struct list_head list;
 466         struct snd_soc_dapm_context *dapm;
 467
 468         /* dapm control */
 469         short reg;                                              /* negative reg = no direct dapm */
 470         unsigned char shift;                    /* bits to shift */
 471         unsigned int saved_value;               /* widget saved value */
 472         unsigned int value;                             /* widget current value */
 473         unsigned int mask;                      /* non-shifted mask */
 474         unsigned int on_val;                    /* on state value */
 475         unsigned int off_val;                   /* off state value */
 476         unsigned char power:1;                  /* block power status */
 477         unsigned char invert:1;                 /* invert the power bit */
 478         unsigned char active:1;                 /* active stream on DAC, ADC's */
 479         unsigned char connected:1;              /* connected codec pin */
 480         unsigned char new:1;                    /* cnew complete */
 481         unsigned char ext:1;                    /* has external widgets */
 482         unsigned char force:1;                  /* force state */
 483         unsigned char ignore_suspend:1;         /* kept enabled over suspend */
 484         unsigned char new_power:1;              /* power from this run */
 485         unsigned char power_checked:1;          /* power checked this run */
 486         int subseq;                             /* sort within widget type */
 487
 488         int (*power_check)(struct snd_soc_dapm_widget *w);
 489
 490         /* external events */
 491         unsigned short event_flags;             /* flags to specify event types */
 492         int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);
 493
 494         /* kcontrols that relate to this widget */
 495         int num_kcontrols;
 496         const struct snd_kcontrol_new *kcontrol_news;
 497         struct snd_kcontrol **kcontrols;
 498
 499         /* widget input and outputs */
 500         struct list_head sources;
 501         struct list_head sinks;
 502
 503         /* used during DAPM updates */
 504         struct list_head power_list;
 505         struct list_head dirty;
 506         int inputs;
 507         int outputs;
 508 };
 509
 510 struct snd_soc_dapm_update {
 511         struct snd_soc_dapm_widget *widget;
 512         struct snd_kcontrol *kcontrol;
 513         int reg;
 514         int mask;
 515         int val;
 516 };
 517
 518 /* DAPM context */
 519 struct snd_soc_dapm_context {
 520         int n_widgets; /* number of widgets in this context */
 521         enum snd_soc_bias_level bias_level;
 522         enum snd_soc_bias_level suspend_bias_level;
 523         struct delayed_work delayed_work;
 524         unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
 525
 526         struct snd_soc_dapm_update *update;
 527
 528         void (*seq_notifier)(struct snd_soc_dapm_context *,
 529                              enum snd_soc_dapm_type, int);
 530
 531         struct device *dev; /* from parent - for debug */
 532         struct snd_soc_codec *codec; /* parent codec */
 533         struct snd_soc_platform *platform; /* parent platform */
 534         struct snd_soc_card *card; /* parent card */
 535
 536         /* used during DAPM updates */
 537         enum snd_soc_bias_level target_bias_level;
 538         struct list_head list;
 539
 540         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 541
 542 #ifdef CONFIG_DEBUG_FS
 543         struct dentry *debugfs_dapm;
 544 #endif
 545 };
 546
 547 /* A list of widgets associated with an object, typically a snd_kcontrol */
 548 struct snd_soc_dapm_widget_list {
 549         int num_widgets;
 550         struct snd_soc_dapm_widget *widgets[0];
 551 };
 552
 553 struct snd_soc_dapm_stats {
 554         int power_checks;
 555         int path_checks;
 556         int neighbour_checks;
 557 };
 558
 559 #endif