include/sound/soc.h

   1 /*
   2  * linux/sound/soc.h -- ALSA SoC Layer
   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_H
  14 #define __LINUX_SND_SOC_H
  15
  16 #include <linux/of.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/types.h>
  19 #include <linux/notifier.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/kernel.h>
  23 #include <linux/regmap.h>
  24 #include <linux/log2.h>
  25 #include <sound/core.h>
  26 #include <sound/pcm.h>
  27 #include <sound/compress_driver.h>
  28 #include <sound/control.h>
  29 #include <sound/ac97_codec.h>
  30
  31 /*
  32  * Convenience kcontrol builders
  33  */
  34 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert, xautodisable) \
  35         ((unsigned long)&(struct soc_mixer_control) \
  36         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
  37         .rshift = shift_right, .max = xmax, .platform_max = xmax, \
  38         .invert = xinvert, .autodisable = xautodisable})
  39 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \
  40         SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable)
  41 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
  42         ((unsigned long)&(struct soc_mixer_control) \
  43         {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
  44 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
  45         ((unsigned long)&(struct soc_mixer_control) \
  46         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  47         .max = xmax, .platform_max = xmax, .invert = xinvert})
  48 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \
  49         ((unsigned long)&(struct soc_mixer_control) \
  50         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  51         .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert})
  52 #define SOC_SINGLE(xname, reg, shift, max, invert) \
  53 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  54         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  55         .put = snd_soc_put_volsw, \
  56         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
  57 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
  58 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  59         .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
  60         .put = snd_soc_put_volsw_range, \
  61         .private_value = (unsigned long)&(struct soc_mixer_control) \
  62                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
  63                  .rshift = xshift,  .min = xmin, .max = xmax, \
  64                  .platform_max = xmax, .invert = xinvert} }
  65 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  66 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  67         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  68                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  69         .tlv.p = (tlv_array), \
  70         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  71         .put = snd_soc_put_volsw, \
  72         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
  73 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
  74 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  75         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  76         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  77         .tlv.p  = (tlv_array),\
  78         .info = snd_soc_info_volsw, \
  79         .get = snd_soc_get_volsw_sx,\
  80         .put = snd_soc_put_volsw_sx, \
  81         .private_value = (unsigned long)&(struct soc_mixer_control) \
  82                 {.reg = xreg, .rreg = xreg, \
  83                 .shift = xshift, .rshift = xshift, \
  84                 .max = xmax, .min = xmin} }
  85 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
  86 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  87         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  88                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  89         .tlv.p = (tlv_array), \
  90         .info = snd_soc_info_volsw_range, \
  91         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
  92         .private_value = (unsigned long)&(struct soc_mixer_control) \
  93                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
  94                  .rshift = xshift, .min = xmin, .max = xmax, \
  95                  .platform_max = xmax, .invert = xinvert} }
  96 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
  97 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  98         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
  99         .put = snd_soc_put_volsw, \
 100         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 101                                           max, invert, 0) }
 102 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
 103 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 104         .info = snd_soc_info_volsw, \
 105         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 106         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 107                                             xmax, xinvert) }
 108 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
 109                            xmax, xinvert)               \
 110 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 111         .info = snd_soc_info_volsw_range, \
 112         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 113         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 114                                             xshift, xmin, xmax, xinvert) }
 115 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \
 116 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 117         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 118                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 119         .tlv.p = (tlv_array), \
 120         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 121         .put = snd_soc_put_volsw, \
 122         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 123                                           max, invert, 0) }
 124 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
 125 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 126         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 127                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 128         .tlv.p = (tlv_array), \
 129         .info = snd_soc_info_volsw, \
 130         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 131         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 132                                             xmax, xinvert) }
 133 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
 134                                xmax, xinvert, tlv_array)                \
 135 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 136         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 137                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 138         .tlv.p = (tlv_array), \
 139         .info = snd_soc_info_volsw_range, \
 140         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 141         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 142                                             xshift, xmin, xmax, xinvert) }
 143 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
 144 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 145         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 146         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 147         .tlv.p  = (tlv_array), \
 148         .info = snd_soc_info_volsw, \
 149         .get = snd_soc_get_volsw_sx, \
 150         .put = snd_soc_put_volsw_sx, \
 151         .private_value = (unsigned long)&(struct soc_mixer_control) \
 152                 {.reg = xreg, .rreg = xrreg, \
 153                 .shift = xshift, .rshift = xshift, \
 154                 .max = xmax, .min = xmin} }
 155 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
 156 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 157         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 158                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 159         .tlv.p  = (tlv_array), \
 160         .info   = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
 161         .put    = snd_soc_put_volsw_s8, \
 162         .private_value = (unsigned long)&(struct soc_mixer_control) \
 163                 {.reg = xreg, .min = xmin, .max = xmax, \
 164                  .platform_max = xmax} }
 165 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
 166 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 167         .max = xmax, .texts = xtexts, \
 168         .mask = xmax ? roundup_pow_of_two(xmax) - 1 : 0}
 169 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
 170         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
 171 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
 172 {       .max = xmax, .texts = xtexts }
 173 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
 174 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 175         .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
 176 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
 177         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
 178 #define SOC_ENUM(xname, xenum) \
 179 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 180         .info = snd_soc_info_enum_double, \
 181         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 182         .private_value = (unsigned long)&xenum }
 183 #define SOC_VALUE_ENUM(xname, xenum) \
 184 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 185         .info = snd_soc_info_enum_double, \
 186         .get = snd_soc_get_value_enum_double, \
 187         .put = snd_soc_put_value_enum_double, \
 188         .private_value = (unsigned long)&xenum }
 189 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 190          xhandler_get, xhandler_put) \
 191 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 192         .info = snd_soc_info_volsw, \
 193         .get = xhandler_get, .put = xhandler_put, \
 194         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
 195 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
 196          xhandler_get, xhandler_put) \
 197 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 198         .info = snd_soc_info_volsw, \
 199         .get = xhandler_get, .put = xhandler_put, \
 200         .private_value = \
 201                 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert, 0) }
 202 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 203          xhandler_get, xhandler_put, tlv_array) \
 204 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 205         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 206                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 207         .tlv.p = (tlv_array), \
 208         .info = snd_soc_info_volsw, \
 209         .get = xhandler_get, .put = xhandler_put, \
 210         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
 211 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 212          xhandler_get, xhandler_put, tlv_array) \
 213 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 214         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 215                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 216         .tlv.p = (tlv_array), \
 217         .info = snd_soc_info_volsw, \
 218         .get = xhandler_get, .put = xhandler_put, \
 219         .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
 220                                           xmax, xinvert, 0) }
 221 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 222          xhandler_get, xhandler_put, tlv_array) \
 223 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 224         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 225                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 226         .tlv.p = (tlv_array), \
 227         .info = snd_soc_info_volsw, \
 228         .get = xhandler_get, .put = xhandler_put, \
 229         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 230                                             xmax, xinvert) }
 231 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 232 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 233         .info = snd_soc_info_bool_ext, \
 234         .get = xhandler_get, .put = xhandler_put, \
 235         .private_value = xdata }
 236 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 237 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 238         .info = snd_soc_info_enum_double, \
 239         .get = xhandler_get, .put = xhandler_put, \
 240         .private_value = (unsigned long)&xenum }
 241
 242 #define SND_SOC_BYTES(xname, xbase, xregs)                    \
 243 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 244         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 245         .put = snd_soc_bytes_put, .private_value =            \
 246                 ((unsigned long)&(struct soc_bytes)           \
 247                 {.base = xbase, .num_regs = xregs }) }
 248
 249 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
 250 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 251         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 252         .put = snd_soc_bytes_put, .private_value =            \
 253                 ((unsigned long)&(struct soc_bytes)           \
 254                 {.base = xbase, .num_regs = xregs,            \
 255                  .mask = xmask }) }
 256
 257 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
 258                 xmin, xmax, xinvert) \
 259 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 260         .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
 261         .put = snd_soc_put_xr_sx, \
 262         .private_value = (unsigned long)&(struct soc_mreg_control) \
 263                 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
 264                 .invert = xinvert, .min = xmin, .max = xmax} }
 265
 266 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
 267         SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
 268                 snd_soc_get_strobe, snd_soc_put_strobe)
 269
 270 /*
 271  * Simplified versions of above macros, declaring a struct and calculating
 272  * ARRAY_SIZE internally
 273  */
 274 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 275         struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 276                                                 ARRAY_SIZE(xtexts), xtexts)
 277 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 278         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 279 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 280         struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 281 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 282         struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 283                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
 284 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 285         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 286
 287 /*
 288  * Component probe and remove ordering levels for components with runtime
 289  * dependencies.
 290  */
 291 #define SND_SOC_COMP_ORDER_FIRST                -2
 292 #define SND_SOC_COMP_ORDER_EARLY                -1
 293 #define SND_SOC_COMP_ORDER_NORMAL               0
 294 #define SND_SOC_COMP_ORDER_LATE         1
 295 #define SND_SOC_COMP_ORDER_LAST         2
 296
 297 /*
 298  * Bias levels
 299  *
 300  * @ON:      Bias is fully on for audio playback and capture operations.
 301  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 302  *           stream start and stop operations.
 303  * @STANDBY: Low power standby state when no playback/capture operations are
 304  *           in progress. NOTE: The transition time between STANDBY and ON
 305  *           should be as fast as possible and no longer than 10ms.
 306  * @OFF:     Power Off. No restrictions on transition times.
 307  */
 308 enum snd_soc_bias_level {
 309         SND_SOC_BIAS_OFF = 0,
 310         SND_SOC_BIAS_STANDBY = 1,
 311         SND_SOC_BIAS_PREPARE = 2,
 312         SND_SOC_BIAS_ON = 3,
 313 };
 314
 315 struct device_node;
 316 struct snd_jack;
 317 struct snd_soc_card;
 318 struct snd_soc_pcm_stream;
 319 struct snd_soc_ops;
 320 struct snd_soc_pcm_runtime;
 321 struct snd_soc_dai;
 322 struct snd_soc_dai_driver;
 323 struct snd_soc_platform;
 324 struct snd_soc_dai_link;
 325 struct snd_soc_platform_driver;
 326 struct snd_soc_codec;
 327 struct snd_soc_codec_driver;
 328 struct snd_soc_component;
 329 struct snd_soc_component_driver;
 330 struct soc_enum;
 331 struct snd_soc_jack;
 332 struct snd_soc_jack_zone;
 333 struct snd_soc_jack_pin;
 334 #include <sound/soc-dapm.h>
 335 #include <sound/soc-dpcm.h>
 336
 337 struct snd_soc_jack_gpio;
 338
 339 typedef int (*hw_write_t)(void *,const char* ,int);
 340
 341 extern struct snd_ac97_bus_ops *soc_ac97_ops;
 342
 343 enum snd_soc_control_type {
 344         SND_SOC_I2C = 1,
 345         SND_SOC_SPI,
 346         SND_SOC_REGMAP,
 347 };
 348
 349 enum snd_soc_pcm_subclass {
 350         SND_SOC_PCM_CLASS_PCM   = 0,
 351         SND_SOC_PCM_CLASS_BE    = 1,
 352 };
 353
 354 enum snd_soc_card_subclass {
 355         SND_SOC_CARD_CLASS_INIT         = 0,
 356         SND_SOC_CARD_CLASS_RUNTIME      = 1,
 357 };
 358
 359 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 360                              int source, unsigned int freq, int dir);
 361 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 362                           unsigned int freq_in, unsigned int freq_out);
 363
 364 int snd_soc_register_card(struct snd_soc_card *card);
 365 int snd_soc_unregister_card(struct snd_soc_card *card);
 366 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card);
 367 int snd_soc_suspend(struct device *dev);
 368 int snd_soc_resume(struct device *dev);
 369 int snd_soc_poweroff(struct device *dev);
 370 int snd_soc_register_platform(struct device *dev,
 371                 const struct snd_soc_platform_driver *platform_drv);
 372 void snd_soc_unregister_platform(struct device *dev);
 373 int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
 374                 const struct snd_soc_platform_driver *platform_drv);
 375 void snd_soc_remove_platform(struct snd_soc_platform *platform);
 376 struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev);
 377 int snd_soc_register_codec(struct device *dev,
 378                 const struct snd_soc_codec_driver *codec_drv,
 379                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 380 void snd_soc_unregister_codec(struct device *dev);
 381 int snd_soc_register_component(struct device *dev,
 382                          const struct snd_soc_component_driver *cmpnt_drv,
 383                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 384 int devm_snd_soc_register_component(struct device *dev,
 385                          const struct snd_soc_component_driver *cmpnt_drv,
 386                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 387 void snd_soc_unregister_component(struct device *dev);
 388 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 389                                     unsigned int reg);
 390 int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
 391                                     unsigned int reg);
 392 int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
 393                                     unsigned int reg);
 394 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 395                                int addr_bits, int data_bits,
 396                                enum snd_soc_control_type control);
 397 int snd_soc_cache_sync(struct snd_soc_codec *codec);
 398 int snd_soc_cache_init(struct snd_soc_codec *codec);
 399 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 400 int snd_soc_cache_write(struct snd_soc_codec *codec,
 401                         unsigned int reg, unsigned int value);
 402 int snd_soc_cache_read(struct snd_soc_codec *codec,
 403                        unsigned int reg, unsigned int *value);
 404 int snd_soc_platform_read(struct snd_soc_platform *platform,
 405                                         unsigned int reg);
 406 int snd_soc_platform_write(struct snd_soc_platform *platform,
 407                                         unsigned int reg, unsigned int val);
 408 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 409 int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
 410
 411 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 412                 const char *dai_link, int stream);
 413 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 414                 const char *dai_link);
 415
 416 /* Utility functions to get clock rates from various things */
 417 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 418 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 419 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 420 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 421
 422 /* set runtime hw params */
 423 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 424         const struct snd_pcm_hardware *hw);
 425
 426 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 427                 int cmd, struct snd_soc_platform *platform);
 428
 429 /* Jack reporting */
 430 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 431                      struct snd_soc_jack *jack);
 432 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 433 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 434                           struct snd_soc_jack_pin *pins);
 435 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 436                                     struct notifier_block *nb);
 437 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 438                                       struct notifier_block *nb);
 439 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 440                           struct snd_soc_jack_zone *zones);
 441 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 442 #ifdef CONFIG_GPIOLIB
 443 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 444                         struct snd_soc_jack_gpio *gpios);
 445 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 446                         struct snd_soc_jack_gpio *gpios);
 447 #else
 448 static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 449                                          struct snd_soc_jack_gpio *gpios)
 450 {
 451         return 0;
 452 }
 453
 454 static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 455                                            struct snd_soc_jack_gpio *gpios)
 456 {
 457 }
 458 #endif
 459
 460 /* codec register bit access */
 461 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 462                                 unsigned int mask, unsigned int value);
 463 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 464                                unsigned short reg, unsigned int mask,
 465                                unsigned int value);
 466 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 467                                 unsigned int mask, unsigned int value);
 468
 469 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 470         struct snd_ac97_bus_ops *ops, int num);
 471 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 472
 473 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
 474 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
 475                 struct platform_device *pdev);
 476
 477 /*
 478  *Controls
 479  */
 480 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 481                                   void *data, const char *long_name,
 482                                   const char *prefix);
 483 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
 484                                                const char *name);
 485 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 486         const struct snd_kcontrol_new *controls, int num_controls);
 487 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 488         const struct snd_kcontrol_new *controls, int num_controls);
 489 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 490         const struct snd_kcontrol_new *controls, int num_controls);
 491 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 492         const struct snd_kcontrol_new *controls, int num_controls);
 493 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 494         struct snd_ctl_elem_info *uinfo);
 495 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 496         struct snd_ctl_elem_value *ucontrol);
 497 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 498         struct snd_ctl_elem_value *ucontrol);
 499 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
 500         struct snd_ctl_elem_value *ucontrol);
 501 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
 502         struct snd_ctl_elem_value *ucontrol);
 503 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 504         struct snd_ctl_elem_info *uinfo);
 505 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 506 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 507         struct snd_ctl_elem_value *ucontrol);
 508 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 509         struct snd_ctl_elem_value *ucontrol);
 510 #define snd_soc_get_volsw_2r snd_soc_get_volsw
 511 #define snd_soc_put_volsw_2r snd_soc_put_volsw
 512 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 513         struct snd_ctl_elem_value *ucontrol);
 514 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 515         struct snd_ctl_elem_value *ucontrol);
 516 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
 517         struct snd_ctl_elem_info *uinfo);
 518 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 519         struct snd_ctl_elem_value *ucontrol);
 520 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 521         struct snd_ctl_elem_value *ucontrol);
 522 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
 523         struct snd_ctl_elem_info *uinfo);
 524 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 525         struct snd_ctl_elem_value *ucontrol);
 526 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
 527         struct snd_ctl_elem_value *ucontrol);
 528 int snd_soc_limit_volume(struct snd_soc_codec *codec,
 529         const char *name, int max);
 530 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
 531                        struct snd_ctl_elem_info *uinfo);
 532 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 533                       struct snd_ctl_elem_value *ucontrol);
 534 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 535                       struct snd_ctl_elem_value *ucontrol);
 536 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
 537         struct snd_ctl_elem_info *uinfo);
 538 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
 539         struct snd_ctl_elem_value *ucontrol);
 540 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 541         struct snd_ctl_elem_value *ucontrol);
 542 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 543         struct snd_ctl_elem_value *ucontrol);
 544 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 545         struct snd_ctl_elem_value *ucontrol);
 546
 547 /**
 548  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 549  *
 550  * @pin:    name of the pin to update
 551  * @mask:   bits to check for in reported jack status
 552  * @invert: if non-zero then pin is enabled when status is not reported
 553  */
 554 struct snd_soc_jack_pin {
 555         struct list_head list;
 556         const char *pin;
 557         int mask;
 558         bool invert;
 559 };
 560
 561 /**
 562  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 563  *
 564  * @min_mv: start voltage in mv
 565  * @max_mv: end voltage in mv
 566  * @jack_type: type of jack that is expected for this voltage
 567  * @debounce_time: debounce_time for jack, codec driver should wait for this
 568  *              duration before reading the adc for voltages
 569  * @:list: list container
 570  */
 571 struct snd_soc_jack_zone {
 572         unsigned int min_mv;
 573         unsigned int max_mv;
 574         unsigned int jack_type;
 575         unsigned int debounce_time;
 576         struct list_head list;
 577 };
 578
 579 /**
 580  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 581  *
 582  * @gpio:         gpio number
 583  * @name:         gpio name
 584  * @report:       value to report when jack detected
 585  * @invert:       report presence in low state
 586  * @debouce_time: debouce time in ms
 587  * @wake:         enable as wake source
 588  * @jack_status_check: callback function which overrides the detection
 589  *                     to provide more complex checks (eg, reading an
 590  *                     ADC).
 591  */
 592 struct snd_soc_jack_gpio {
 593         unsigned int gpio;
 594         const char *name;
 595         int report;
 596         int invert;
 597         int debounce_time;
 598         bool wake;
 599
 600         struct snd_soc_jack *jack;
 601         struct delayed_work work;
 602
 603         int (*jack_status_check)(void);
 604 };
 605
 606 struct snd_soc_jack {
 607         struct mutex mutex;
 608         struct snd_jack *jack;
 609         struct snd_soc_codec *codec;
 610         struct list_head pins;
 611         int status;
 612         struct blocking_notifier_head notifier;
 613         struct list_head jack_zones;
 614 };
 615
 616 /* SoC PCM stream information */
 617 struct snd_soc_pcm_stream {
 618         const char *stream_name;
 619         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 620         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 621         unsigned int rate_min;          /* min rate */
 622         unsigned int rate_max;          /* max rate */
 623         unsigned int channels_min;      /* min channels */
 624         unsigned int channels_max;      /* max channels */
 625         unsigned int sig_bits;          /* number of bits of content */
 626 };
 627
 628 /* SoC audio ops */
 629 struct snd_soc_ops {
 630         int (*startup)(struct snd_pcm_substream *);
 631         void (*shutdown)(struct snd_pcm_substream *);
 632         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 633         int (*hw_free)(struct snd_pcm_substream *);
 634         int (*prepare)(struct snd_pcm_substream *);
 635         int (*trigger)(struct snd_pcm_substream *, int);
 636 };
 637
 638 struct snd_soc_compr_ops {
 639         int (*startup)(struct snd_compr_stream *);
 640         void (*shutdown)(struct snd_compr_stream *);
 641         int (*set_params)(struct snd_compr_stream *);
 642         int (*trigger)(struct snd_compr_stream *);
 643 };
 644
 645 /* component interface */
 646 struct snd_soc_component_driver {
 647         const char *name;
 648
 649         /* DT */
 650         int (*of_xlate_dai_name)(struct snd_soc_component *component,
 651                                  struct of_phandle_args *args,
 652                                  const char **dai_name);
 653 };
 654
 655 struct snd_soc_component {
 656         const char *name;
 657         int id;
 658         struct device *dev;
 659         struct list_head list;
 660
 661         struct snd_soc_dai_driver *dai_drv;
 662         int num_dai;
 663
 664         const struct snd_soc_component_driver *driver;
 665 };
 666
 667 /* SoC Audio Codec device */
 668 struct snd_soc_codec {
 669         const char *name;
 670         const char *name_prefix;
 671         int id;
 672         struct device *dev;
 673         const struct snd_soc_codec_driver *driver;
 674
 675         struct mutex mutex;
 676         struct snd_soc_card *card;
 677         struct list_head list;
 678         struct list_head card_list;
 679         int num_dai;
 680         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 681         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 682         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 683
 684         /* runtime */
 685         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 686         unsigned int active;
 687         unsigned int cache_bypass:1; /* Suppress access to the cache */
 688         unsigned int suspended:1; /* Codec is in suspend PM state */
 689         unsigned int probed:1; /* Codec has been probed */
 690         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 691         unsigned int ac97_created:1; /* Codec has been created by SoC */
 692         unsigned int cache_init:1; /* codec cache has been initialized */
 693         unsigned int using_regmap:1; /* using regmap access */
 694         u32 cache_only;  /* Suppress writes to hardware */
 695         u32 cache_sync; /* Cache needs to be synced to hardware */
 696
 697         /* codec IO */
 698         void *control_data; /* codec control (i2c/3wire) data */
 699         hw_write_t hw_write;
 700         unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 701         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 702         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 703         void *reg_cache;
 704         struct mutex cache_rw_mutex;
 705         int val_bytes;
 706
 707         /* component */
 708         struct snd_soc_component component;
 709
 710         /* dapm */
 711         struct snd_soc_dapm_context dapm;
 712         unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 713
 714 #ifdef CONFIG_DEBUG_FS
 715         struct dentry *debugfs_codec_root;
 716         struct dentry *debugfs_reg;
 717 #endif
 718 };
 719
 720 /* codec driver */
 721 struct snd_soc_codec_driver {
 722
 723         /* driver ops */
 724         int (*probe)(struct snd_soc_codec *);
 725         int (*remove)(struct snd_soc_codec *);
 726         int (*suspend)(struct snd_soc_codec *);
 727         int (*resume)(struct snd_soc_codec *);
 728         struct snd_soc_component_driver component_driver;
 729
 730         /* Default control and setup, added after probe() is run */
 731         const struct snd_kcontrol_new *controls;
 732         int num_controls;
 733         const struct snd_soc_dapm_widget *dapm_widgets;
 734         int num_dapm_widgets;
 735         const struct snd_soc_dapm_route *dapm_routes;
 736         int num_dapm_routes;
 737
 738         /* codec wide operations */
 739         int (*set_sysclk)(struct snd_soc_codec *codec,
 740                           int clk_id, int source, unsigned int freq, int dir);
 741         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 742                 unsigned int freq_in, unsigned int freq_out);
 743
 744         /* codec IO */
 745         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 746         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 747         int (*display_register)(struct snd_soc_codec *, char *,
 748                                 size_t, unsigned int);
 749         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 750         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 751         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 752         unsigned int reg_cache_size;
 753         short reg_cache_step;
 754         short reg_word_size;
 755         const void *reg_cache_default;
 756
 757         /* codec bias level */
 758         int (*set_bias_level)(struct snd_soc_codec *,
 759                               enum snd_soc_bias_level level);
 760         bool idle_bias_off;
 761
 762         void (*seq_notifier)(struct snd_soc_dapm_context *,
 763                              enum snd_soc_dapm_type, int);
 764
 765         /* codec stream completion event */
 766         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 767
 768         bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 769
 770         /* probe ordering - for components with runtime dependencies */
 771         int probe_order;
 772         int remove_order;
 773 };
 774
 775 /* SoC platform interface */
 776 struct snd_soc_platform_driver {
 777
 778         int (*probe)(struct snd_soc_platform *);
 779         int (*remove)(struct snd_soc_platform *);
 780         int (*suspend)(struct snd_soc_dai *dai);
 781         int (*resume)(struct snd_soc_dai *dai);
 782
 783         /* pcm creation and destruction */
 784         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 785         void (*pcm_free)(struct snd_pcm *);
 786
 787         /* Default control and setup, added after probe() is run */
 788         const struct snd_kcontrol_new *controls;
 789         int num_controls;
 790         const struct snd_soc_dapm_widget *dapm_widgets;
 791         int num_dapm_widgets;
 792         const struct snd_soc_dapm_route *dapm_routes;
 793         int num_dapm_routes;
 794
 795         /*
 796          * For platform caused delay reporting.
 797          * Optional.
 798          */
 799         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 800                 struct snd_soc_dai *);
 801
 802         /* platform stream pcm ops */
 803         const struct snd_pcm_ops *ops;
 804
 805         /* platform stream compress ops */
 806         const struct snd_compr_ops *compr_ops;
 807
 808         /* platform stream completion event */
 809         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 810
 811         /* probe ordering - for components with runtime dependencies */
 812         int probe_order;
 813         int remove_order;
 814
 815         /* platform IO - used for platform DAPM */
 816         unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 817         int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 818         int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 819 };
 820
 821 struct snd_soc_platform {
 822         const char *name;
 823         int id;
 824         struct device *dev;
 825         const struct snd_soc_platform_driver *driver;
 826         struct mutex mutex;
 827
 828         unsigned int suspended:1; /* platform is suspended */
 829         unsigned int probed:1;
 830
 831         struct snd_soc_card *card;
 832         struct list_head list;
 833         struct list_head card_list;
 834
 835         struct snd_soc_dapm_context dapm;
 836
 837 #ifdef CONFIG_DEBUG_FS
 838         struct dentry *debugfs_platform_root;
 839 #endif
 840 };
 841
 842 struct snd_soc_dai_link {
 843         /* config - must be set by machine driver */
 844         const char *name;                       /* Codec name */
 845         const char *stream_name;                /* Stream name */
 846         /*
 847          * You MAY specify the link's CPU-side device, either by device name,
 848          * or by DT/OF node, but not both. If this information is omitted,
 849          * the CPU-side DAI is matched using .cpu_dai_name only, which hence
 850          * must be globally unique. These fields are currently typically used
 851          * only for codec to codec links, or systems using device tree.
 852          */
 853         const char *cpu_name;
 854         const struct device_node *cpu_of_node;
 855         /*
 856          * You MAY specify the DAI name of the CPU DAI. If this information is
 857          * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
 858          * only, which only works well when that device exposes a single DAI.
 859          */
 860         const char *cpu_dai_name;
 861         /*
 862          * You MUST specify the link's codec, either by device name, or by
 863          * DT/OF node, but not both.
 864          */
 865         const char *codec_name;
 866         const struct device_node *codec_of_node;
 867         /* You MUST specify the DAI name within the codec */
 868         const char *codec_dai_name;
 869         /*
 870          * You MAY specify the link's platform/PCM/DMA driver, either by
 871          * device name, or by DT/OF node, but not both. Some forms of link
 872          * do not need a platform.
 873          */
 874         const char *platform_name;
 875         const struct device_node *platform_of_node;
 876         int be_id;      /* optional ID for machine driver BE identification */
 877
 878         const struct snd_soc_pcm_stream *params;
 879
 880         unsigned int dai_fmt;           /* format to set on init */
 881
 882         enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
 883
 884         /* Keep DAI active over suspend */
 885         unsigned int ignore_suspend:1;
 886
 887         /* Symmetry requirements */
 888         unsigned int symmetric_rates:1;
 889         unsigned int symmetric_channels:1;
 890         unsigned int symmetric_samplebits:1;
 891
 892         /* Do not create a PCM for this DAI link (Backend link) */
 893         unsigned int no_pcm:1;
 894
 895         /* This DAI link can route to other DAI links at runtime (Frontend)*/
 896         unsigned int dynamic:1;
 897
 898         /* DPCM capture and Playback support */
 899         unsigned int dpcm_capture:1;
 900         unsigned int dpcm_playback:1;
 901
 902         /* pmdown_time is ignored at stop */
 903         unsigned int ignore_pmdown_time:1;
 904
 905         /* codec/machine specific init - e.g. add machine controls */
 906         int (*init)(struct snd_soc_pcm_runtime *rtd);
 907
 908         /* optional hw_params re-writing for BE and FE sync */
 909         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 910                         struct snd_pcm_hw_params *params);
 911
 912         /* machine stream operations */
 913         const struct snd_soc_ops *ops;
 914         const struct snd_soc_compr_ops *compr_ops;
 915
 916         /* For unidirectional dai links */
 917         bool playback_only;
 918         bool capture_only;
 919 };
 920
 921 struct snd_soc_codec_conf {
 922         const char *dev_name;
 923
 924         /*
 925          * optional map of kcontrol, widget and path name prefixes that are
 926          * associated per device
 927          */
 928         const char *name_prefix;
 929 };
 930
 931 struct snd_soc_aux_dev {
 932         const char *name;               /* Codec name */
 933         const char *codec_name;         /* for multi-codec */
 934
 935         /* codec/machine specific init - e.g. add machine controls */
 936         int (*init)(struct snd_soc_dapm_context *dapm);
 937 };
 938
 939 /* SoC card */
 940 struct snd_soc_card {
 941         const char *name;
 942         const char *long_name;
 943         const char *driver_name;
 944         struct device *dev;
 945         struct snd_card *snd_card;
 946         struct module *owner;
 947
 948         struct list_head list;
 949         struct mutex mutex;
 950         struct mutex dapm_mutex;
 951
 952         bool instantiated;
 953
 954         int (*probe)(struct snd_soc_card *card);
 955         int (*late_probe)(struct snd_soc_card *card);
 956         int (*remove)(struct snd_soc_card *card);
 957
 958         /* the pre and post PM functions are used to do any PM work before and
 959          * after the codec and DAI's do any PM work. */
 960         int (*suspend_pre)(struct snd_soc_card *card);
 961         int (*suspend_post)(struct snd_soc_card *card);
 962         int (*resume_pre)(struct snd_soc_card *card);
 963         int (*resume_post)(struct snd_soc_card *card);
 964
 965         /* callbacks */
 966         int (*set_bias_level)(struct snd_soc_card *,
 967                               struct snd_soc_dapm_context *dapm,
 968                               enum snd_soc_bias_level level);
 969         int (*set_bias_level_post)(struct snd_soc_card *,
 970                                    struct snd_soc_dapm_context *dapm,
 971                                    enum snd_soc_bias_level level);
 972
 973         long pmdown_time;
 974
 975         /* CPU <--> Codec DAI links  */
 976         struct snd_soc_dai_link *dai_link;
 977         int num_links;
 978         struct snd_soc_pcm_runtime *rtd;
 979         int num_rtd;
 980
 981         /* optional codec specific configuration */
 982         struct snd_soc_codec_conf *codec_conf;
 983         int num_configs;
 984
 985         /*
 986          * optional auxiliary devices such as amplifiers or codecs with DAI
 987          * link unused
 988          */
 989         struct snd_soc_aux_dev *aux_dev;
 990         int num_aux_devs;
 991         struct snd_soc_pcm_runtime *rtd_aux;
 992         int num_aux_rtd;
 993
 994         const struct snd_kcontrol_new *controls;
 995         int num_controls;
 996
 997         /*
 998          * Card-specific routes and widgets.
 999          */
1000         const struct snd_soc_dapm_widget *dapm_widgets;
1001         int num_dapm_widgets;
1002         const struct snd_soc_dapm_route *dapm_routes;
1003         int num_dapm_routes;
1004         bool fully_routed;
1005
1006         struct work_struct deferred_resume_work;
1007
1008         /* lists of probed devices belonging to this card */
1009         struct list_head codec_dev_list;
1010         struct list_head platform_dev_list;
1011         struct list_head dai_dev_list;
1012
1013         struct list_head widgets;
1014         struct list_head paths;
1015         struct list_head dapm_list;
1016         struct list_head dapm_dirty;
1017
1018         /* Generic DAPM context for the card */
1019         struct snd_soc_dapm_context dapm;
1020         struct snd_soc_dapm_stats dapm_stats;
1021         struct snd_soc_dapm_update *update;
1022
1023 #ifdef CONFIG_DEBUG_FS
1024         struct dentry *debugfs_card_root;
1025         struct dentry *debugfs_pop_time;
1026 #endif
1027         u32 pop_time;
1028
1029         void *drvdata;
1030 };
1031
1032 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1033 struct snd_soc_pcm_runtime {
1034         struct device *dev;
1035         struct snd_soc_card *card;
1036         struct snd_soc_dai_link *dai_link;
1037         struct mutex pcm_mutex;
1038         enum snd_soc_pcm_subclass pcm_subclass;
1039         struct snd_pcm_ops ops;
1040
1041         unsigned int dev_registered:1;
1042
1043         /* Dynamic PCM BE runtime data */
1044         struct snd_soc_dpcm_runtime dpcm[2];
1045         int fe_compr;
1046
1047         long pmdown_time;
1048         unsigned char pop_wait:1;
1049
1050         /* runtime devices */
1051         struct snd_pcm *pcm;
1052         struct snd_compr *compr;
1053         struct snd_soc_codec *codec;
1054         struct snd_soc_platform *platform;
1055         struct snd_soc_dai *codec_dai;
1056         struct snd_soc_dai *cpu_dai;
1057
1058         struct delayed_work delayed_work;
1059 #ifdef CONFIG_DEBUG_FS
1060         struct dentry *debugfs_dpcm_root;
1061         struct dentry *debugfs_dpcm_state;
1062 #endif
1063 };
1064
1065 /* mixer control */
1066 struct soc_mixer_control {
1067         int min, max, platform_max;
1068         int reg, rreg;
1069         unsigned int shift, rshift;
1070         unsigned int invert:1;
1071         unsigned int autodisable:1;
1072 };
1073
1074 struct soc_bytes {
1075         int base;
1076         int num_regs;
1077         u32 mask;
1078 };
1079
1080 /* multi register control */
1081 struct soc_mreg_control {
1082         long min, max;
1083         unsigned int regbase, regcount, nbits, invert;
1084 };
1085
1086 /* enumerated kcontrol */
1087 struct soc_enum {
1088         unsigned short reg;
1089         unsigned short reg2;
1090         unsigned char shift_l;
1091         unsigned char shift_r;
1092         unsigned int max;
1093         unsigned int mask;
1094         const char * const *texts;
1095         const unsigned int *values;
1096 };
1097
1098 /* codec IO */
1099 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1100 unsigned int snd_soc_write(struct snd_soc_codec *codec,
1101                            unsigned int reg, unsigned int val);
1102
1103 /* device driver data */
1104
1105 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1106                 void *data)
1107 {
1108         card->drvdata = data;
1109 }
1110
1111 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1112 {
1113         return card->drvdata;
1114 }
1115
1116 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1117                 void *data)
1118 {
1119         dev_set_drvdata(codec->dev, data);
1120 }
1121
1122 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1123 {
1124         return dev_get_drvdata(codec->dev);
1125 }
1126
1127 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1128                 void *data)
1129 {
1130         dev_set_drvdata(platform->dev, data);
1131 }
1132
1133 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1134 {
1135         return dev_get_drvdata(platform->dev);
1136 }
1137
1138 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1139                 void *data)
1140 {
1141         dev_set_drvdata(rtd->dev, data);
1142 }
1143
1144 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1145 {
1146         return dev_get_drvdata(rtd->dev);
1147 }
1148
1149 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1150 {
1151         INIT_LIST_HEAD(&card->dai_dev_list);
1152         INIT_LIST_HEAD(&card->codec_dev_list);
1153         INIT_LIST_HEAD(&card->platform_dev_list);
1154         INIT_LIST_HEAD(&card->widgets);
1155         INIT_LIST_HEAD(&card->paths);
1156         INIT_LIST_HEAD(&card->dapm_list);
1157 }
1158
1159 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1160 {
1161         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1162                 return 0;
1163         /*
1164          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1165          * mc->reg != mc->rreg means that the control is
1166          * stereo (bits in one register or in two registers)
1167          */
1168         return 1;
1169 }
1170
1171 int snd_soc_util_init(void);
1172 void snd_soc_util_exit(void);
1173
1174 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1175                                const char *propname);
1176 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1177                                    const char *propname);
1178 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
1179                                      const char *prefix);
1180 int snd_soc_of_get_dai_name(struct device_node *of_node,
1181                             const char **dai_name);
1182
1183 #include <sound/soc-dai.h>
1184
1185 #ifdef CONFIG_DEBUG_FS
1186 extern struct dentry *snd_soc_debugfs_root;
1187 #endif
1188
1189 extern const struct dev_pm_ops snd_soc_pm_ops;
1190
1191 #endif