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
  19 struct device;
  20
  21 /* widget has no PM register bit */
  22 #define SND_SOC_NOPM    -1
  23
  24 /*
  25  * SoC dynamic audio power management
  26  *
  27  * We can have up to 4 power domains
  28  *  1. Codec domain - VREF, VMID
  29  *     Usually controlled at codec probe/remove, although can be set
  30  *     at stream time if power is not needed for sidetone, etc.
  31  *  2. Platform/Machine domain - physically connected inputs and outputs
  32  *     Is platform/machine and user action specific, is set in the machine
  33  *     driver and by userspace e.g when HP are inserted
  34  *  3. Path domain - Internal codec path mixers
  35  *     Are automatically set when mixer and mux settings are
  36  *     changed by the user.
  37  *  4. Stream domain - DAC's and ADC's.
  38  *     Enabled when stream playback/capture is started.
  39  */
  40
  41 /* codec domain */
  42 #define SND_SOC_DAPM_VMID(wname) \
  43 {       .id = snd_soc_dapm_vmid, .name = wname, .kcontrol_news = NULL, \
  44         .num_kcontrols = 0}
  45
  46 /* platform domain */
  47 #define SND_SOC_DAPM_SIGGEN(wname) \
  48 {       .id = snd_soc_dapm_siggen, .name = wname, .kcontrol_news = NULL, \
  49         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  50 #define SND_SOC_DAPM_INPUT(wname) \
  51 {       .id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \
  52         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  53 #define SND_SOC_DAPM_OUTPUT(wname) \
  54 {       .id = snd_soc_dapm_output, .name = wname, .kcontrol_news = NULL, \
  55         .num_kcontrols = 0, .reg = SND_SOC_NOPM }
  56 #define SND_SOC_DAPM_MIC(wname, wevent) \
  57 {       .id = snd_soc_dapm_mic, .name = wname, .kcontrol_news = NULL, \
  58         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  59         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
  60 #define SND_SOC_DAPM_HP(wname, wevent) \
  61 {       .id = snd_soc_dapm_hp, .name = wname, .kcontrol_news = NULL, \
  62         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  63         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  64 #define SND_SOC_DAPM_SPK(wname, wevent) \
  65 {       .id = snd_soc_dapm_spk, .name = wname, .kcontrol_news = NULL, \
  66         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  67         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  68 #define SND_SOC_DAPM_LINE(wname, wevent) \
  69 {       .id = snd_soc_dapm_line, .name = wname, .kcontrol_news = NULL, \
  70         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
  71         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD}
  72
  73 /* path domain */
  74 #define SND_SOC_DAPM_PGA(wname, wreg, wshift, winvert,\
  75          wcontrols, wncontrols) \
  76 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
  77         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
  78 #define SND_SOC_DAPM_OUT_DRV(wname, wreg, wshift, winvert,\
  79          wcontrols, wncontrols) \
  80 {       .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
  81         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
  82 #define SND_SOC_DAPM_MIXER(wname, wreg, wshift, winvert, \
  83          wcontrols, wncontrols)\
  84 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
  85         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols}
  86 #define SND_SOC_DAPM_MIXER_NAMED_CTL(wname, wreg, wshift, winvert, \
  87          wcontrols, wncontrols)\
  88 {       .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
  89         .shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
  90         .num_kcontrols = wncontrols}
  91 #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \
  92 {       .id = snd_soc_dapm_micbias, .name = wname, .reg = wreg, .shift = wshift, \
  93         .invert = winvert, .kcontrol_news = NULL, .num_kcontrols = 0}
  94 #define SND_SOC_DAPM_SWITCH(wname, wreg, wshift, winvert, wcontrols) \
  95 {       .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
  96         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
  97 #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
  98 {       .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
  99         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
 100 #define SND_SOC_DAPM_VIRT_MUX(wname, wreg, wshift, winvert, wcontrols) \
 101 {       .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \
 102         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1}
 103 #define SND_SOC_DAPM_VALUE_MUX(wname, wreg, wshift, winvert, wcontrols) \
 104 {       .id = snd_soc_dapm_value_mux, .name = wname, .reg = wreg, \
 105         .shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
 106         .num_kcontrols = 1}
 107
 108 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
 109 #define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
 110          wcontrols) \
 111 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
 112         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
 113 #define SOC_MIXER_ARRAY(wname, wreg, wshift, winvert, \
 114          wcontrols)\
 115 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 116         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols)}
 117 #define SOC_MIXER_NAMED_CTL_ARRAY(wname, wreg, wshift, winvert, \
 118          wcontrols)\
 119 {       .id = snd_soc_dapm_mixer_named_ctl, .name = wname, .reg = wreg, \
 120         .shift = wshift, .invert = winvert, .kcontrol_news = wcontrols, \
 121         .num_kcontrols = ARRAY_SIZE(wcontrols)}
 122
 123 /* path domain with event - event handler must return 0 for success */
 124 #define SND_SOC_DAPM_PGA_E(wname, wreg, wshift, winvert, wcontrols, \
 125         wncontrols, wevent, wflags) \
 126 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
 127         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 128         .event = wevent, .event_flags = wflags}
 129 #define SND_SOC_DAPM_OUT_DRV_E(wname, wreg, wshift, winvert, wcontrols, \
 130         wncontrols, wevent, wflags) \
 131 {       .id = snd_soc_dapm_out_drv, .name = wname, .reg = wreg, .shift = wshift, \
 132         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 133         .event = wevent, .event_flags = wflags}
 134 #define SND_SOC_DAPM_MIXER_E(wname, wreg, wshift, winvert, wcontrols, \
 135         wncontrols, wevent, wflags) \
 136 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 137         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = wncontrols, \
 138         .event = wevent, .event_flags = wflags}
 139 #define SND_SOC_DAPM_MIXER_NAMED_CTL_E(wname, wreg, wshift, winvert, \
 140         wcontrols, wncontrols, wevent, wflags) \
 141 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 142         .invert = winvert, .kcontrol_news = wcontrols, \
 143         .num_kcontrols = wncontrols, .event = wevent, .event_flags = wflags}
 144 #define SND_SOC_DAPM_SWITCH_E(wname, wreg, wshift, winvert, wcontrols, \
 145         wevent, wflags) \
 146 {       .id = snd_soc_dapm_switch, .name = wname, .reg = wreg, .shift = wshift, \
 147         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
 148         .event = wevent, .event_flags = wflags}
 149 #define SND_SOC_DAPM_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
 150         wevent, wflags) \
 151 {       .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
 152         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
 153         .event = wevent, .event_flags = wflags}
 154 #define SND_SOC_DAPM_VIRT_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
 155         wevent, wflags) \
 156 {       .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \
 157         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = 1, \
 158         .event = wevent, .event_flags = wflags}
 159
 160 /* additional sequencing control within an event type */
 161 #define SND_SOC_DAPM_PGA_S(wname, wsubseq, wreg, wshift, winvert, \
 162         wevent, wflags) \
 163 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
 164         .invert = winvert, .event = wevent, .event_flags = wflags, \
 165         .subseq = wsubseq}
 166 #define SND_SOC_DAPM_SUPPLY_S(wname, wsubseq, wreg, wshift, winvert, wevent, \
 167         wflags) \
 168 {       .id = snd_soc_dapm_supply, .name = wname, .reg = wreg,  \
 169         .shift = wshift, .invert = winvert, .event = wevent, \
 170         .event_flags = wflags, .subseq = wsubseq}
 171
 172 /* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
 173 #define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
 174         wevent, wflags) \
 175 {       .id = snd_soc_dapm_pga, .name = wname, .reg = wreg, .shift = wshift, \
 176         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
 177         .event = wevent, .event_flags = wflags}
 178 #define SOC_MIXER_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
 179         wevent, wflags) \
 180 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 181         .invert = winvert, .kcontrol_news = wcontrols, .num_kcontrols = ARRAY_SIZE(wcontrols), \
 182         .event = wevent, .event_flags = wflags}
 183 #define SOC_MIXER_NAMED_CTL_E_ARRAY(wname, wreg, wshift, winvert, \
 184         wcontrols, wevent, wflags) \
 185 {       .id = snd_soc_dapm_mixer, .name = wname, .reg = wreg, .shift = wshift, \
 186         .invert = winvert, .kcontrol_news = wcontrols, \
 187         .num_kcontrols = ARRAY_SIZE(wcontrols), .event = wevent, .event_flags = wflags}
 188
 189 /* events that are pre and post DAPM */
 190 #define SND_SOC_DAPM_PRE(wname, wevent) \
 191 {       .id = snd_soc_dapm_pre, .name = wname, .kcontrol_news = NULL, \
 192         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 193         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD}
 194 #define SND_SOC_DAPM_POST(wname, wevent) \
 195 {       .id = snd_soc_dapm_post, .name = wname, .kcontrol_news = NULL, \
 196         .num_kcontrols = 0, .reg = SND_SOC_NOPM, .event = wevent, \
 197         .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD}
 198
 199 /* stream domain */
 200 #define SND_SOC_DAPM_AIF_IN(wname, stname, wslot, wreg, wshift, winvert) \
 201 {       .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
 202         .reg = wreg, .shift = wshift, .invert = winvert }
 203 #define SND_SOC_DAPM_AIF_IN_E(wname, stname, wslot, wreg, wshift, winvert, \
 204                               wevent, wflags)                           \
 205 {       .id = snd_soc_dapm_aif_in, .name = wname, .sname = stname, \
 206         .reg = wreg, .shift = wshift, .invert = winvert, \
 207         .event = wevent, .event_flags = wflags }
 208 #define SND_SOC_DAPM_AIF_OUT(wname, stname, wslot, wreg, wshift, winvert) \
 209 {       .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
 210         .reg = wreg, .shift = wshift, .invert = winvert }
 211 #define SND_SOC_DAPM_AIF_OUT_E(wname, stname, wslot, wreg, wshift, winvert, \
 212                              wevent, wflags)                            \
 213 {       .id = snd_soc_dapm_aif_out, .name = wname, .sname = stname, \
 214         .reg = wreg, .shift = wshift, .invert = winvert, \
 215         .event = wevent, .event_flags = wflags }
 216 #define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
 217 {       .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
 218         .shift = wshift, .invert = winvert}
 219 #define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
 220                            wevent, wflags)                              \
 221 {       .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
 222         .shift = wshift, .invert = winvert, \
 223         .event = wevent, .event_flags = wflags}
 224 #define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
 225 {       .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
 226         .shift = wshift, .invert = winvert}
 227 #define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
 228                            wevent, wflags)                              \
 229 {       .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
 230         .shift = wshift, .invert = winvert, \
 231         .event = wevent, .event_flags = wflags}
 232 #define SND_SOC_DAPM_CLOCK_SUPPLY(wname) \
 233 {       .id = snd_soc_dapm_clock_supply, .name = wname, \
 234         .reg = SND_SOC_NOPM, .event = dapm_clock_event, \
 235         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }
 236
 237 /* generic widgets */
 238 #define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
 239 {       .id = wid, .name = wname, .kcontrol_news = NULL, .num_kcontrols = 0, \
 240         .reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \
 241         .on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \
 242         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
 243 #define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
 244 {       .id = snd_soc_dapm_supply, .name = wname, .reg = wreg,  \
 245         .shift = wshift, .invert = winvert, .event = wevent, \
 246         .event_flags = wflags}
 247 #define SND_SOC_DAPM_REGULATOR_SUPPLY(wname, wdelay, wflags)        \
 248 {       .id = snd_soc_dapm_regulator_supply, .name = wname, \
 249         .reg = SND_SOC_NOPM, .shift = wdelay, .event = dapm_regulator_event, \
 250         .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD, \
 251         .invert = wflags}
 252
 253
 254 /* dapm kcontrol types */
 255 #define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
 256 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 257         .info = snd_soc_info_volsw, \
 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_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
 261 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 262         .info = snd_soc_info_volsw, \
 263         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 264         .tlv.p = (tlv_array), \
 265         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 266         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
 267 #define SOC_DAPM_ENUM(xname, xenum) \
 268 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 269         .info = snd_soc_info_enum_double, \
 270         .get = snd_soc_dapm_get_enum_double, \
 271         .put = snd_soc_dapm_put_enum_double, \
 272         .private_value = (unsigned long)&xenum }
 273 #define SOC_DAPM_ENUM_VIRT(xname, xenum)                    \
 274 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 275         .info = snd_soc_info_enum_double, \
 276         .get = snd_soc_dapm_get_enum_virt, \
 277         .put = snd_soc_dapm_put_enum_virt, \
 278         .private_value = (unsigned long)&xenum }
 279 #define SOC_DAPM_ENUM_EXT(xname, xenum, xget, xput) \
 280 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 281         .info = snd_soc_info_enum_double, \
 282         .get = xget, \
 283         .put = xput, \
 284         .private_value = (unsigned long)&xenum }
 285 #define SOC_DAPM_VALUE_ENUM(xname, xenum) \
 286 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 287         .info = snd_soc_info_enum_double, \
 288         .get = snd_soc_dapm_get_value_enum_double, \
 289         .put = snd_soc_dapm_put_value_enum_double, \
 290         .private_value = (unsigned long)&xenum }
 291 #define SOC_DAPM_PIN_SWITCH(xname) \
 292 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \
 293         .info = snd_soc_dapm_info_pin_switch, \
 294         .get = snd_soc_dapm_get_pin_switch, \
 295         .put = snd_soc_dapm_put_pin_switch, \
 296         .private_value = (unsigned long)xname }
 297
 298 /* dapm stream operations */
 299 #define SND_SOC_DAPM_STREAM_NOP                 0x0
 300 #define SND_SOC_DAPM_STREAM_START               0x1
 301 #define SND_SOC_DAPM_STREAM_STOP                0x2
 302 #define SND_SOC_DAPM_STREAM_SUSPEND             0x4
 303 #define SND_SOC_DAPM_STREAM_RESUME              0x8
 304 #define SND_SOC_DAPM_STREAM_PAUSE_PUSH  0x10
 305 #define SND_SOC_DAPM_STREAM_PAUSE_RELEASE       0x20
 306
 307 /* dapm event types */
 308 #define SND_SOC_DAPM_PRE_PMU    0x1     /* before widget power up */
 309 #define SND_SOC_DAPM_POST_PMU   0x2             /* after widget power up */
 310 #define SND_SOC_DAPM_PRE_PMD    0x4     /* before widget power down */
 311 #define SND_SOC_DAPM_POST_PMD   0x8             /* after widget power down */
 312 #define SND_SOC_DAPM_PRE_REG    0x10    /* before audio path setup */
 313 #define SND_SOC_DAPM_POST_REG   0x20    /* after audio path setup */
 314 #define SND_SOC_DAPM_PRE_POST_PMD \
 315                                 (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD)
 316
 317 /* convenience event type detection */
 318 #define SND_SOC_DAPM_EVENT_ON(e)        \
 319         (e & (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU))
 320 #define SND_SOC_DAPM_EVENT_OFF(e)       \
 321         (e & (SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD))
 322
 323 /* regulator widget flags */
 324 #define SND_SOC_DAPM_REGULATOR_BYPASS     0x1     /* bypass when disabled */
 325
 326 struct snd_soc_dapm_widget;
 327 enum snd_soc_dapm_type;
 328 struct snd_soc_dapm_path;
 329 struct snd_soc_dapm_pin;
 330 struct snd_soc_dapm_route;
 331 struct snd_soc_dapm_context;
 332 struct regulator;
 333 struct snd_soc_dapm_widget_list;
 334
 335 int dapm_reg_event(struct snd_soc_dapm_widget *w,
 336                    struct snd_kcontrol *kcontrol, int event);
 337 int dapm_regulator_event(struct snd_soc_dapm_widget *w,
 338                          struct snd_kcontrol *kcontrol, int event);
 339 int dapm_clock_event(struct snd_soc_dapm_widget *w,
 340                          struct snd_kcontrol *kcontrol, int event);
 341
 342 /* dapm controls */
 343 int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 344         struct snd_ctl_elem_value *ucontrol);
 345 int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
 346         struct snd_ctl_elem_value *ucontrol);
 347 int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
 348         struct snd_ctl_elem_value *ucontrol);
 349 int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
 350         struct snd_ctl_elem_value *ucontrol);
 351 int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol,
 352         struct snd_ctl_elem_value *ucontrol);
 353 int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol,
 354         struct snd_ctl_elem_value *ucontrol);
 355 int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
 356         struct snd_ctl_elem_value *ucontrol);
 357 int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
 358         struct snd_ctl_elem_value *ucontrol);
 359 int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
 360         struct snd_ctl_elem_info *uinfo);
 361 int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
 362         struct snd_ctl_elem_value *uncontrol);
 363 int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
 364         struct snd_ctl_elem_value *uncontrol);
 365 int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
 366         const struct snd_soc_dapm_widget *widget,
 367         int num);
 368 int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
 369                                  struct snd_soc_dai *dai);
 370 int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card);
 371 int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
 372                          const struct snd_soc_pcm_stream *params,
 373                          struct snd_soc_dapm_widget *source,
 374                          struct snd_soc_dapm_widget *sink);
 375
 376 /* dapm path setup */
 377 int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm);
 378 void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
 379 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
 380                             const struct snd_soc_dapm_route *route, int num);
 381 int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
 382                             const struct snd_soc_dapm_route *route, int num);
 383 int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
 384                              const struct snd_soc_dapm_route *route, int num);
 385
 386 /* dapm events */
 387 void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
 388         int event);
 389 void snd_soc_dapm_shutdown(struct snd_soc_card *card);
 390
 391 /* external DAPM widget events */
 392 int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
 393                 struct snd_kcontrol *kcontrol, int connect);
 394 int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
 395                                  struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e);
 396
 397 /* dapm sys fs - used by the core */
 398 int snd_soc_dapm_sys_add(struct device *dev);
 399 void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
 400                                 struct dentry *parent);
 401
 402 /* dapm audio pin control and status */
 403 int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm,
 404                             const char *pin);
 405 int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm,
 406                              const char *pin);
 407 int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin);
 408 int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
 409                                 const char *pin);
 410 int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm);
 411 int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
 412                                   const char *pin);
 413 int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
 414                                 const char *pin);
 415 void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec);
 416
 417 /* Mostly internal - should not normally be used */
 418 void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason);
 419 void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm);
 420
 421 /* dapm path query */
 422 int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
 423         struct snd_soc_dapm_widget_list **list);
 424
 425 /* dapm widget types */
 426 enum snd_soc_dapm_type {
 427         snd_soc_dapm_input = 0,         /* input pin */
 428         snd_soc_dapm_output,            /* output pin */
 429         snd_soc_dapm_mux,                       /* selects 1 analog signal from many inputs */
 430         snd_soc_dapm_virt_mux,                  /* virtual version of snd_soc_dapm_mux */
 431         snd_soc_dapm_value_mux,                 /* selects 1 analog signal from many inputs */
 432         snd_soc_dapm_mixer,                     /* mixes several analog signals together */
 433         snd_soc_dapm_mixer_named_ctl,           /* mixer with named controls */
 434         snd_soc_dapm_pga,                       /* programmable gain/attenuation (volume) */
 435         snd_soc_dapm_out_drv,                   /* output driver */
 436         snd_soc_dapm_adc,                       /* analog to digital converter */
 437         snd_soc_dapm_dac,                       /* digital to analog converter */
 438         snd_soc_dapm_micbias,           /* microphone bias (power) */
 439         snd_soc_dapm_mic,                       /* microphone */
 440         snd_soc_dapm_hp,                        /* headphones */
 441         snd_soc_dapm_spk,                       /* speaker */
 442         snd_soc_dapm_line,                      /* line input/output */
 443         snd_soc_dapm_switch,            /* analog switch */
 444         snd_soc_dapm_vmid,                      /* codec bias/vmid - to minimise pops */
 445         snd_soc_dapm_pre,                       /* machine specific pre widget - exec first */
 446         snd_soc_dapm_post,                      /* machine specific post widget - exec last */
 447         snd_soc_dapm_supply,            /* power/clock supply */
 448         snd_soc_dapm_regulator_supply,  /* external regulator */
 449         snd_soc_dapm_clock_supply,      /* external clock */
 450         snd_soc_dapm_aif_in,            /* audio interface input */
 451         snd_soc_dapm_aif_out,           /* audio interface output */
 452         snd_soc_dapm_siggen,            /* signal generator */
 453         snd_soc_dapm_dai_in,            /* link to DAI structure */
 454         snd_soc_dapm_dai_out,
 455         snd_soc_dapm_dai_link,          /* link between two DAI structures */
 456 };
 457
 458 enum snd_soc_dapm_subclass {
 459         SND_SOC_DAPM_CLASS_INIT         = 0,
 460         SND_SOC_DAPM_CLASS_RUNTIME      = 1,
 461 };
 462
 463 /*
 464  * DAPM audio route definition.
 465  *
 466  * Defines an audio route originating at source via control and finishing
 467  * at sink.
 468  */
 469 struct snd_soc_dapm_route {
 470         const char *sink;
 471         const char *control;
 472         const char *source;
 473
 474         /* Note: currently only supported for links where source is a supply */
 475         int (*connected)(struct snd_soc_dapm_widget *source,
 476                          struct snd_soc_dapm_widget *sink);
 477 };
 478
 479 /* dapm audio path between two widgets */
 480 struct snd_soc_dapm_path {
 481         const char *name;
 482         const char *long_name;
 483
 484         /* source (input) and sink (output) widgets */
 485         struct snd_soc_dapm_widget *source;
 486         struct snd_soc_dapm_widget *sink;
 487         struct snd_kcontrol *kcontrol;
 488
 489         /* status */
 490         u32 connect:1;  /* source and sink widgets are connected */
 491         u32 walked:1;   /* path has been walked */
 492         u32 walking:1;  /* path is in the process of being walked */
 493         u32 weak:1;     /* path ignored for power management */
 494
 495         int (*connected)(struct snd_soc_dapm_widget *source,
 496                          struct snd_soc_dapm_widget *sink);
 497
 498         struct list_head list_source;
 499         struct list_head list_sink;
 500         struct list_head list;
 501 };
 502
 503 /* dapm widget */
 504 struct snd_soc_dapm_widget {
 505         enum snd_soc_dapm_type id;
 506         const char *name;               /* widget name */
 507         const char *sname;      /* stream name */
 508         struct snd_soc_codec *codec;
 509         struct snd_soc_platform *platform;
 510         struct list_head list;
 511         struct snd_soc_dapm_context *dapm;
 512
 513         void *priv;                             /* widget specific data */
 514         struct regulator *regulator;            /* attached regulator */
 515         const struct snd_soc_pcm_stream *params; /* params for dai links */
 516
 517         /* dapm control */
 518         int reg;                                /* negative reg = no direct dapm */
 519         unsigned char shift;                    /* bits to shift */
 520         unsigned int value;                             /* widget current value */
 521         unsigned int mask;                      /* non-shifted mask */
 522         unsigned int on_val;                    /* on state value */
 523         unsigned int off_val;                   /* off state value */
 524         unsigned char power:1;                  /* block power status */
 525         unsigned char invert:1;                 /* invert the power bit */
 526         unsigned char active:1;                 /* active stream on DAC, ADC's */
 527         unsigned char connected:1;              /* connected codec pin */
 528         unsigned char new:1;                    /* cnew complete */
 529         unsigned char ext:1;                    /* has external widgets */
 530         unsigned char force:1;                  /* force state */
 531         unsigned char ignore_suspend:1;         /* kept enabled over suspend */
 532         unsigned char new_power:1;              /* power from this run */
 533         unsigned char power_checked:1;          /* power checked this run */
 534         int subseq;                             /* sort within widget type */
 535
 536         int (*power_check)(struct snd_soc_dapm_widget *w);
 537
 538         /* external events */
 539         unsigned short event_flags;             /* flags to specify event types */
 540         int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);
 541
 542         /* kcontrols that relate to this widget */
 543         int num_kcontrols;
 544         const struct snd_kcontrol_new *kcontrol_news;
 545         struct snd_kcontrol **kcontrols;
 546
 547         /* widget input and outputs */
 548         struct list_head sources;
 549         struct list_head sinks;
 550
 551         /* used during DAPM updates */
 552         struct list_head power_list;
 553         struct list_head dirty;
 554         int inputs;
 555         int outputs;
 556
 557         struct clk *clk;
 558 };
 559
 560 struct snd_soc_dapm_update {
 561         struct snd_soc_dapm_widget *widget;
 562         struct snd_kcontrol *kcontrol;
 563         int reg;
 564         int mask;
 565         int val;
 566 };
 567
 568 /* DAPM context */
 569 struct snd_soc_dapm_context {
 570         enum snd_soc_bias_level bias_level;
 571         enum snd_soc_bias_level suspend_bias_level;
 572         struct delayed_work delayed_work;
 573         unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
 574
 575         struct snd_soc_dapm_update *update;
 576
 577         void (*seq_notifier)(struct snd_soc_dapm_context *,
 578                              enum snd_soc_dapm_type, int);
 579
 580         struct device *dev; /* from parent - for debug */
 581         struct snd_soc_codec *codec; /* parent codec */
 582         struct snd_soc_platform *platform; /* parent platform */
 583         struct snd_soc_card *card; /* parent card */
 584
 585         /* used during DAPM updates */
 586         enum snd_soc_bias_level target_bias_level;
 587         struct list_head list;
 588
 589         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 590
 591 #ifdef CONFIG_DEBUG_FS
 592         struct dentry *debugfs_dapm;
 593 #endif
 594 };
 595
 596 /* A list of widgets associated with an object, typically a snd_kcontrol */
 597 struct snd_soc_dapm_widget_list {
 598         int num_widgets;
 599         struct snd_soc_dapm_widget *widgets[0];
 600 };
 601
 602 struct snd_soc_dapm_stats {
 603         int power_checks;
 604         int path_checks;
 605         int neighbour_checks;
 606 };
 607
 608 #endif