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/platform_device.h>
  17 #include <linux/types.h>
  18 #include <linux/notifier.h>
  19 #include <linux/workqueue.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/kernel.h>
  22 #include <linux/regmap.h>
  23 #include <linux/log2.h>
  24 #include <sound/core.h>
  25 #include <sound/pcm.h>
  26 #include <sound/compress_driver.h>
  27 #include <sound/control.h>
  28 #include <sound/ac97_codec.h>
  29
  30 /*
  31  * Convenience kcontrol builders
  32  */
  33 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert) \
  34         ((unsigned long)&(struct soc_mixer_control) \
  35         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
  36         .rshift = shift_right, .max = xmax, .platform_max = xmax, \
  37         .invert = xinvert})
  38 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
  39         SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert)
  40 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
  41         ((unsigned long)&(struct soc_mixer_control) \
  42         {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
  43 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
  44         ((unsigned long)&(struct soc_mixer_control) \
  45         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  46         .max = xmax, .platform_max = xmax, .invert = xinvert})
  47 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \
  48         ((unsigned long)&(struct soc_mixer_control) \
  49         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  50         .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert})
  51 #define SOC_SINGLE(xname, reg, shift, max, invert) \
  52 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  53         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  54         .put = snd_soc_put_volsw, \
  55         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  56 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
  57 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  58         .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
  59         .put = snd_soc_put_volsw_range, \
  60         .private_value = (unsigned long)&(struct soc_mixer_control) \
  61                 {.reg = xreg, .shift = xshift, .min = xmin,\
  62                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
  63 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  64 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  65         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  66                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  67         .tlv.p = (tlv_array), \
  68         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  69         .put = snd_soc_put_volsw, \
  70         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  71 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
  72 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  73         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  74         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  75         .tlv.p  = (tlv_array),\
  76         .info = snd_soc_info_volsw, \
  77         .get = snd_soc_get_volsw_sx,\
  78         .put = snd_soc_put_volsw_sx, \
  79         .private_value = (unsigned long)&(struct soc_mixer_control) \
  80                 {.reg = xreg, .rreg = xreg, \
  81                 .shift = xshift, .rshift = xshift, \
  82                 .max = xmax, .min = xmin} }
  83 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
  84 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  85         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  86                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  87         .tlv.p = (tlv_array), \
  88         .info = snd_soc_info_volsw_range, \
  89         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
  90         .private_value = (unsigned long)&(struct soc_mixer_control) \
  91                 {.reg = xreg, .shift = xshift, .min = xmin,\
  92                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
  93 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
  94 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  95         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
  96         .put = snd_soc_put_volsw, \
  97         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
  98                                           max, invert) }
  99 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
 100 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 101         .info = snd_soc_info_volsw, \
 102         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 103         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 104                                             xmax, xinvert) }
 105 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
 106                            xmax, xinvert)               \
 107 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 108         .info = snd_soc_info_volsw_range, \
 109         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 110         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 111                                             xshift, xmin, xmax, xinvert) }
 112 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \
 113 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 114         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 115                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 116         .tlv.p = (tlv_array), \
 117         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 118         .put = snd_soc_put_volsw, \
 119         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 120                                           max, invert) }
 121 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
 122 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 123         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 124                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 125         .tlv.p = (tlv_array), \
 126         .info = snd_soc_info_volsw, \
 127         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 128         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 129                                             xmax, xinvert) }
 130 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
 131                                xmax, xinvert, tlv_array)                \
 132 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 133         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 134                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 135         .tlv.p = (tlv_array), \
 136         .info = snd_soc_info_volsw_range, \
 137         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 138         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 139                                             xshift, xmin, xmax, xinvert) }
 140 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
 141 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 142         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 143         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 144         .tlv.p  = (tlv_array), \
 145         .info = snd_soc_info_volsw, \
 146         .get = snd_soc_get_volsw_sx, \
 147         .put = snd_soc_put_volsw_sx, \
 148         .private_value = (unsigned long)&(struct soc_mixer_control) \
 149                 {.reg = xreg, .rreg = xrreg, \
 150                 .shift = xshift, .rshift = xshift, \
 151                 .max = xmax, .min = xmin} }
 152 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
 153 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 154         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 155                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 156         .tlv.p  = (tlv_array), \
 157         .info   = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
 158         .put    = snd_soc_put_volsw_s8, \
 159         .private_value = (unsigned long)&(struct soc_mixer_control) \
 160                 {.reg = xreg, .min = xmin, .max = xmax, \
 161                  .platform_max = xmax} }
 162 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
 163 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 164         .max = xmax, .texts = xtexts, \
 165         .mask = xmax ? roundup_pow_of_two(xmax) - 1 : 0}
 166 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
 167         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
 168 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
 169 {       .max = xmax, .texts = xtexts }
 170 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
 171 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 172         .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
 173 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
 174         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
 175 #define SOC_ENUM(xname, xenum) \
 176 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 177         .info = snd_soc_info_enum_double, \
 178         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 179         .private_value = (unsigned long)&xenum }
 180 #define SOC_VALUE_ENUM(xname, xenum) \
 181 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 182         .info = snd_soc_info_enum_double, \
 183         .get = snd_soc_get_value_enum_double, \
 184         .put = snd_soc_put_value_enum_double, \
 185         .private_value = (unsigned long)&xenum }
 186 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 187          xhandler_get, xhandler_put) \
 188 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 189         .info = snd_soc_info_volsw, \
 190         .get = xhandler_get, .put = xhandler_put, \
 191         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 192 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
 193          xhandler_get, xhandler_put) \
 194 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 195         .info = snd_soc_info_volsw, \
 196         .get = xhandler_get, .put = xhandler_put, \
 197         .private_value = \
 198                 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert) }
 199 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 200          xhandler_get, xhandler_put, tlv_array) \
 201 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 202         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 203                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 204         .tlv.p = (tlv_array), \
 205         .info = snd_soc_info_volsw, \
 206         .get = xhandler_get, .put = xhandler_put, \
 207         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 208 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 209          xhandler_get, xhandler_put, tlv_array) \
 210 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 211         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 212                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 213         .tlv.p = (tlv_array), \
 214         .info = snd_soc_info_volsw, \
 215         .get = xhandler_get, .put = xhandler_put, \
 216         .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
 217                                           xmax, xinvert) }
 218 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 219          xhandler_get, xhandler_put, tlv_array) \
 220 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 221         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 222                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 223         .tlv.p = (tlv_array), \
 224         .info = snd_soc_info_volsw, \
 225         .get = xhandler_get, .put = xhandler_put, \
 226         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 227                                             xmax, xinvert) }
 228 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 229 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 230         .info = snd_soc_info_bool_ext, \
 231         .get = xhandler_get, .put = xhandler_put, \
 232         .private_value = xdata }
 233 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 234 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 235         .info = snd_soc_info_enum_ext, \
 236         .get = xhandler_get, .put = xhandler_put, \
 237         .private_value = (unsigned long)&xenum }
 238
 239 #define SND_SOC_BYTES(xname, xbase, xregs)                    \
 240 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 241         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 242         .put = snd_soc_bytes_put, .private_value =            \
 243                 ((unsigned long)&(struct soc_bytes)           \
 244                 {.base = xbase, .num_regs = xregs }) }
 245
 246 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
 247 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 248         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 249         .put = snd_soc_bytes_put, .private_value =            \
 250                 ((unsigned long)&(struct soc_bytes)           \
 251                 {.base = xbase, .num_regs = xregs,            \
 252                  .mask = xmask }) }
 253
 254 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
 255                 xmin, xmax, xinvert) \
 256 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 257         .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
 258         .put = snd_soc_put_xr_sx, \
 259         .private_value = (unsigned long)&(struct soc_mreg_control) \
 260                 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
 261                 .invert = xinvert, .min = xmin, .max = xmax} }
 262
 263 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
 264         SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
 265                 snd_soc_get_strobe, snd_soc_put_strobe)
 266
 267 /*
 268  * Simplified versions of above macros, declaring a struct and calculating
 269  * ARRAY_SIZE internally
 270  */
 271 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 272         struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 273                                                 ARRAY_SIZE(xtexts), xtexts)
 274 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 275         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 276 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 277         struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 278 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 279         struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 280                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
 281 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 282         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 283
 284 /*
 285  * Component probe and remove ordering levels for components with runtime
 286  * dependencies.
 287  */
 288 #define SND_SOC_COMP_ORDER_FIRST                -2
 289 #define SND_SOC_COMP_ORDER_EARLY                -1
 290 #define SND_SOC_COMP_ORDER_NORMAL               0
 291 #define SND_SOC_COMP_ORDER_LATE         1
 292 #define SND_SOC_COMP_ORDER_LAST         2
 293
 294 /*
 295  * Bias levels
 296  *
 297  * @ON:      Bias is fully on for audio playback and capture operations.
 298  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 299  *           stream start and stop operations.
 300  * @STANDBY: Low power standby state when no playback/capture operations are
 301  *           in progress. NOTE: The transition time between STANDBY and ON
 302  *           should be as fast as possible and no longer than 10ms.
 303  * @OFF:     Power Off. No restrictions on transition times.
 304  */
 305 enum snd_soc_bias_level {
 306         SND_SOC_BIAS_OFF = 0,
 307         SND_SOC_BIAS_STANDBY = 1,
 308         SND_SOC_BIAS_PREPARE = 2,
 309         SND_SOC_BIAS_ON = 3,
 310 };
 311
 312 struct device_node;
 313 struct snd_jack;
 314 struct snd_soc_card;
 315 struct snd_soc_pcm_stream;
 316 struct snd_soc_ops;
 317 struct snd_soc_pcm_runtime;
 318 struct snd_soc_dai;
 319 struct snd_soc_dai_driver;
 320 struct snd_soc_platform;
 321 struct snd_soc_dai_link;
 322 struct snd_soc_platform_driver;
 323 struct snd_soc_codec;
 324 struct snd_soc_codec_driver;
 325 struct soc_enum;
 326 struct snd_soc_jack;
 327 struct snd_soc_jack_zone;
 328 struct snd_soc_jack_pin;
 329 struct snd_soc_cache_ops;
 330 #include <sound/soc-dapm.h>
 331 #include <sound/soc-dpcm.h>
 332
 333 #ifdef CONFIG_GPIOLIB
 334 struct snd_soc_jack_gpio;
 335 #endif
 336
 337 typedef int (*hw_write_t)(void *,const char* ,int);
 338
 339 extern struct snd_ac97_bus_ops soc_ac97_ops;
 340
 341 enum snd_soc_control_type {
 342         SND_SOC_I2C = 1,
 343         SND_SOC_SPI,
 344         SND_SOC_REGMAP,
 345 };
 346
 347 enum snd_soc_compress_type {
 348         SND_SOC_FLAT_COMPRESSION = 1,
 349 };
 350
 351 enum snd_soc_pcm_subclass {
 352         SND_SOC_PCM_CLASS_PCM   = 0,
 353         SND_SOC_PCM_CLASS_BE    = 1,
 354 };
 355
 356 enum snd_soc_card_subclass {
 357         SND_SOC_CARD_CLASS_INIT         = 0,
 358         SND_SOC_CARD_CLASS_RUNTIME      = 1,
 359 };
 360
 361 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 362                              int source, unsigned int freq, int dir);
 363 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 364                           unsigned int freq_in, unsigned int freq_out);
 365
 366 int snd_soc_register_card(struct snd_soc_card *card);
 367 int snd_soc_unregister_card(struct snd_soc_card *card);
 368 int snd_soc_suspend(struct device *dev);
 369 int snd_soc_resume(struct device *dev);
 370 int snd_soc_poweroff(struct device *dev);
 371 int snd_soc_register_platform(struct device *dev,
 372                 struct snd_soc_platform_driver *platform_drv);
 373 void snd_soc_unregister_platform(struct device *dev);
 374 int snd_soc_register_codec(struct device *dev,
 375                 const struct snd_soc_codec_driver *codec_drv,
 376                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 377 void snd_soc_unregister_codec(struct device *dev);
 378 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 379                                     unsigned int reg);
 380 int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
 381                                     unsigned int reg);
 382 int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
 383                                     unsigned int reg);
 384 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 385                                int addr_bits, int data_bits,
 386                                enum snd_soc_control_type control);
 387 int snd_soc_cache_sync(struct snd_soc_codec *codec);
 388 int snd_soc_cache_init(struct snd_soc_codec *codec);
 389 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 390 int snd_soc_cache_write(struct snd_soc_codec *codec,
 391                         unsigned int reg, unsigned int value);
 392 int snd_soc_cache_read(struct snd_soc_codec *codec,
 393                        unsigned int reg, unsigned int *value);
 394 int snd_soc_default_volatile_register(struct snd_soc_codec *codec,
 395                                       unsigned int reg);
 396 int snd_soc_default_readable_register(struct snd_soc_codec *codec,
 397                                       unsigned int reg);
 398 int snd_soc_default_writable_register(struct snd_soc_codec *codec,
 399                                       unsigned int reg);
 400 int snd_soc_platform_read(struct snd_soc_platform *platform,
 401                                         unsigned int reg);
 402 int snd_soc_platform_write(struct snd_soc_platform *platform,
 403                                         unsigned int reg, unsigned int val);
 404 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 405 int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
 406
 407 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 408                 const char *dai_link, int stream);
 409 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 410                 const char *dai_link);
 411
 412 /* Utility functions to get clock rates from various things */
 413 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 414 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 415 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 416 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 417
 418 /* set runtime hw params */
 419 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 420         const struct snd_pcm_hardware *hw);
 421
 422 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 423                 int cmd, struct snd_soc_platform *platform);
 424
 425 /* Jack reporting */
 426 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 427                      struct snd_soc_jack *jack);
 428 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 429 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 430                           struct snd_soc_jack_pin *pins);
 431 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 432                                     struct notifier_block *nb);
 433 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 434                                       struct notifier_block *nb);
 435 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 436                           struct snd_soc_jack_zone *zones);
 437 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 438 #ifdef CONFIG_GPIOLIB
 439 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 440                         struct snd_soc_jack_gpio *gpios);
 441 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 442                         struct snd_soc_jack_gpio *gpios);
 443 #endif
 444
 445 /* codec register bit access */
 446 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 447                                 unsigned int mask, unsigned int value);
 448 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 449                                unsigned short reg, unsigned int mask,
 450                                unsigned int value);
 451 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 452                                 unsigned int mask, unsigned int value);
 453
 454 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 455         struct snd_ac97_bus_ops *ops, int num);
 456 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 457
 458 /*
 459  *Controls
 460  */
 461 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 462                                   void *data, const char *long_name,
 463                                   const char *prefix);
 464 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 465         const struct snd_kcontrol_new *controls, int num_controls);
 466 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 467         const struct snd_kcontrol_new *controls, int num_controls);
 468 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 469         const struct snd_kcontrol_new *controls, int num_controls);
 470 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 471         const struct snd_kcontrol_new *controls, int num_controls);
 472 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 473         struct snd_ctl_elem_info *uinfo);
 474 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
 475         struct snd_ctl_elem_info *uinfo);
 476 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 477         struct snd_ctl_elem_value *ucontrol);
 478 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 479         struct snd_ctl_elem_value *ucontrol);
 480 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
 481         struct snd_ctl_elem_value *ucontrol);
 482 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
 483         struct snd_ctl_elem_value *ucontrol);
 484 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 485         struct snd_ctl_elem_info *uinfo);
 486 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
 487         struct snd_ctl_elem_info *uinfo);
 488 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 489 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 490         struct snd_ctl_elem_value *ucontrol);
 491 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 492         struct snd_ctl_elem_value *ucontrol);
 493 #define snd_soc_get_volsw_2r snd_soc_get_volsw
 494 #define snd_soc_put_volsw_2r snd_soc_put_volsw
 495 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 496         struct snd_ctl_elem_value *ucontrol);
 497 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 498         struct snd_ctl_elem_value *ucontrol);
 499 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
 500         struct snd_ctl_elem_info *uinfo);
 501 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 502         struct snd_ctl_elem_value *ucontrol);
 503 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 504         struct snd_ctl_elem_value *ucontrol);
 505 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
 506         struct snd_ctl_elem_info *uinfo);
 507 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 508         struct snd_ctl_elem_value *ucontrol);
 509 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
 510         struct snd_ctl_elem_value *ucontrol);
 511 int snd_soc_limit_volume(struct snd_soc_codec *codec,
 512         const char *name, int max);
 513 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
 514                        struct snd_ctl_elem_info *uinfo);
 515 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 516                       struct snd_ctl_elem_value *ucontrol);
 517 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 518                       struct snd_ctl_elem_value *ucontrol);
 519 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
 520         struct snd_ctl_elem_info *uinfo);
 521 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
 522         struct snd_ctl_elem_value *ucontrol);
 523 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 524         struct snd_ctl_elem_value *ucontrol);
 525 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 526         struct snd_ctl_elem_value *ucontrol);
 527 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 528         struct snd_ctl_elem_value *ucontrol);
 529
 530 /**
 531  * struct snd_soc_reg_access - Describes whether a given register is
 532  * readable, writable or volatile.
 533  *
 534  * @reg: the register number
 535  * @read: whether this register is readable
 536  * @write: whether this register is writable
 537  * @vol: whether this register is volatile
 538  */
 539 struct snd_soc_reg_access {
 540         u16 reg;
 541         u16 read;
 542         u16 write;
 543         u16 vol;
 544 };
 545
 546 /**
 547  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 548  *
 549  * @pin:    name of the pin to update
 550  * @mask:   bits to check for in reported jack status
 551  * @invert: if non-zero then pin is enabled when status is not reported
 552  */
 553 struct snd_soc_jack_pin {
 554         struct list_head list;
 555         const char *pin;
 556         int mask;
 557         bool invert;
 558 };
 559
 560 /**
 561  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 562  *
 563  * @min_mv: start voltage in mv
 564  * @max_mv: end voltage in mv
 565  * @jack_type: type of jack that is expected for this voltage
 566  * @debounce_time: debounce_time for jack, codec driver should wait for this
 567  *              duration before reading the adc for voltages
 568  * @:list: list container
 569  */
 570 struct snd_soc_jack_zone {
 571         unsigned int min_mv;
 572         unsigned int max_mv;
 573         unsigned int jack_type;
 574         unsigned int debounce_time;
 575         struct list_head list;
 576 };
 577
 578 /**
 579  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 580  *
 581  * @gpio:         gpio number
 582  * @name:         gpio name
 583  * @report:       value to report when jack detected
 584  * @invert:       report presence in low state
 585  * @debouce_time: debouce time in ms
 586  * @wake:         enable as wake source
 587  * @jack_status_check: callback function which overrides the detection
 588  *                     to provide more complex checks (eg, reading an
 589  *                     ADC).
 590  */
 591 #ifdef CONFIG_GPIOLIB
 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 #endif
 606
 607 struct snd_soc_jack {
 608         struct mutex mutex;
 609         struct snd_jack *jack;
 610         struct snd_soc_codec *codec;
 611         struct list_head pins;
 612         int status;
 613         struct blocking_notifier_head notifier;
 614         struct list_head jack_zones;
 615 };
 616
 617 /* SoC PCM stream information */
 618 struct snd_soc_pcm_stream {
 619         const char *stream_name;
 620         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 621         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 622         unsigned int rate_min;          /* min rate */
 623         unsigned int rate_max;          /* max rate */
 624         unsigned int channels_min;      /* min channels */
 625         unsigned int channels_max;      /* max channels */
 626         unsigned int sig_bits;          /* number of bits of content */
 627 };
 628
 629 /* SoC audio ops */
 630 struct snd_soc_ops {
 631         int (*startup)(struct snd_pcm_substream *);
 632         void (*shutdown)(struct snd_pcm_substream *);
 633         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 634         int (*hw_free)(struct snd_pcm_substream *);
 635         int (*prepare)(struct snd_pcm_substream *);
 636         int (*trigger)(struct snd_pcm_substream *, int);
 637 };
 638
 639 struct snd_soc_compr_ops {
 640         int (*startup)(struct snd_compr_stream *);
 641         void (*shutdown)(struct snd_compr_stream *);
 642         int (*set_params)(struct snd_compr_stream *);
 643         int (*trigger)(struct snd_compr_stream *);
 644 };
 645
 646 /* SoC cache ops */
 647 struct snd_soc_cache_ops {
 648         const char *name;
 649         enum snd_soc_compress_type id;
 650         int (*init)(struct snd_soc_codec *codec);
 651         int (*exit)(struct snd_soc_codec *codec);
 652         int (*read)(struct snd_soc_codec *codec, unsigned int reg,
 653                 unsigned int *value);
 654         int (*write)(struct snd_soc_codec *codec, unsigned int reg,
 655                 unsigned int value);
 656         int (*sync)(struct snd_soc_codec *codec);
 657 };
 658
 659 /* SoC Audio Codec device */
 660 struct snd_soc_codec {
 661         const char *name;
 662         const char *name_prefix;
 663         int id;
 664         struct device *dev;
 665         const struct snd_soc_codec_driver *driver;
 666
 667         struct mutex mutex;
 668         struct snd_soc_card *card;
 669         struct list_head list;
 670         struct list_head card_list;
 671         int num_dai;
 672         enum snd_soc_compress_type compress_type;
 673         size_t reg_size;        /* reg_cache_size * reg_word_size */
 674         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 675         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 676         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 677
 678         /* runtime */
 679         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 680         unsigned int active;
 681         unsigned int cache_bypass:1; /* Suppress access to the cache */
 682         unsigned int suspended:1; /* Codec is in suspend PM state */
 683         unsigned int probed:1; /* Codec has been probed */
 684         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 685         unsigned int ac97_created:1; /* Codec has been created by SoC */
 686         unsigned int sysfs_registered:1; /* codec has been sysfs registered */
 687         unsigned int cache_init:1; /* codec cache has been initialized */
 688         unsigned int using_regmap:1; /* using regmap access */
 689         u32 cache_only;  /* Suppress writes to hardware */
 690         u32 cache_sync; /* Cache needs to be synced to hardware */
 691
 692         /* codec IO */
 693         void *control_data; /* codec control (i2c/3wire) data */
 694         enum snd_soc_control_type control_type;
 695         hw_write_t hw_write;
 696         unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 697         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 698         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 699         int (*bulk_write_raw)(struct snd_soc_codec *, unsigned int, const void *, size_t);
 700         void *reg_cache;
 701         const void *reg_def_copy;
 702         const struct snd_soc_cache_ops *cache_ops;
 703         struct mutex cache_rw_mutex;
 704         int val_bytes;
 705
 706         /* dapm */
 707         struct snd_soc_dapm_context dapm;
 708         unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 709
 710 #ifdef CONFIG_DEBUG_FS
 711         struct dentry *debugfs_codec_root;
 712         struct dentry *debugfs_reg;
 713         struct dentry *debugfs_dapm;
 714 #endif
 715 };
 716
 717 /* codec driver */
 718 struct snd_soc_codec_driver {
 719
 720         /* driver ops */
 721         int (*probe)(struct snd_soc_codec *);
 722         int (*remove)(struct snd_soc_codec *);
 723         int (*suspend)(struct snd_soc_codec *);
 724         int (*resume)(struct snd_soc_codec *);
 725
 726         /* Default control and setup, added after probe() is run */
 727         const struct snd_kcontrol_new *controls;
 728         int num_controls;
 729         const struct snd_soc_dapm_widget *dapm_widgets;
 730         int num_dapm_widgets;
 731         const struct snd_soc_dapm_route *dapm_routes;
 732         int num_dapm_routes;
 733
 734         /* codec wide operations */
 735         int (*set_sysclk)(struct snd_soc_codec *codec,
 736                           int clk_id, int source, unsigned int freq, int dir);
 737         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 738                 unsigned int freq_in, unsigned int freq_out);
 739
 740         /* codec IO */
 741         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 742         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 743         int (*display_register)(struct snd_soc_codec *, char *,
 744                                 size_t, unsigned int);
 745         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 746         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 747         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 748         unsigned int reg_cache_size;
 749         short reg_cache_step;
 750         short reg_word_size;
 751         const void *reg_cache_default;
 752         short reg_access_size;
 753         const struct snd_soc_reg_access *reg_access_default;
 754         enum snd_soc_compress_type compress_type;
 755
 756         /* codec bias level */
 757         int (*set_bias_level)(struct snd_soc_codec *,
 758                               enum snd_soc_bias_level level);
 759         bool idle_bias_off;
 760
 761         void (*seq_notifier)(struct snd_soc_dapm_context *,
 762                              enum snd_soc_dapm_type, int);
 763
 764         /* codec stream completion event */
 765         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 766
 767         bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 768
 769         /* probe ordering - for components with runtime dependencies */
 770         int probe_order;
 771         int remove_order;
 772 };
 773
 774 /* SoC platform interface */
 775 struct snd_soc_platform_driver {
 776
 777         int (*probe)(struct snd_soc_platform *);
 778         int (*remove)(struct snd_soc_platform *);
 779         int (*suspend)(struct snd_soc_dai *dai);
 780         int (*resume)(struct snd_soc_dai *dai);
 781
 782         /* pcm creation and destruction */
 783         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 784         void (*pcm_free)(struct snd_pcm *);
 785
 786         /* Default control and setup, added after probe() is run */
 787         const struct snd_kcontrol_new *controls;
 788         int num_controls;
 789         const struct snd_soc_dapm_widget *dapm_widgets;
 790         int num_dapm_widgets;
 791         const struct snd_soc_dapm_route *dapm_routes;
 792         int num_dapm_routes;
 793
 794         /*
 795          * For platform caused delay reporting.
 796          * Optional.
 797          */
 798         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 799                 struct snd_soc_dai *);
 800
 801         /* platform stream pcm ops */
 802         struct snd_pcm_ops *ops;
 803
 804         /* platform stream compress ops */
 805         struct snd_compr_ops *compr_ops;
 806
 807         /* platform stream completion event */
 808         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 809
 810         /* probe ordering - for components with runtime dependencies */
 811         int probe_order;
 812         int remove_order;
 813
 814         /* platform IO - used for platform DAPM */
 815         unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 816         int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 817         int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 818 };
 819
 820 struct snd_soc_platform {
 821         const char *name;
 822         int id;
 823         struct device *dev;
 824         struct snd_soc_platform_driver *driver;
 825         struct mutex mutex;
 826
 827         unsigned int suspended:1; /* platform is suspended */
 828         unsigned int probed:1;
 829
 830         struct snd_soc_card *card;
 831         struct list_head list;
 832         struct list_head card_list;
 833
 834         struct snd_soc_dapm_context dapm;
 835
 836 #ifdef CONFIG_DEBUG_FS
 837         struct dentry *debugfs_platform_root;
 838         struct dentry *debugfs_dapm;
 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
 890         /* Do not create a PCM for this DAI link (Backend link) */
 891         unsigned int no_pcm:1;
 892
 893         /* This DAI link can route to other DAI links at runtime (Frontend)*/
 894         unsigned int dynamic:1;
 895
 896         /* pmdown_time is ignored at stop */
 897         unsigned int ignore_pmdown_time:1;
 898
 899         /* codec/machine specific init - e.g. add machine controls */
 900         int (*init)(struct snd_soc_pcm_runtime *rtd);
 901
 902         /* optional hw_params re-writing for BE and FE sync */
 903         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 904                         struct snd_pcm_hw_params *params);
 905
 906         /* machine stream operations */
 907         struct snd_soc_ops *ops;
 908         struct snd_soc_compr_ops *compr_ops;
 909 };
 910
 911 struct snd_soc_codec_conf {
 912         const char *dev_name;
 913
 914         /*
 915          * optional map of kcontrol, widget and path name prefixes that are
 916          * associated per device
 917          */
 918         const char *name_prefix;
 919
 920         /*
 921          * set this to the desired compression type if you want to
 922          * override the one supplied in codec->driver->compress_type
 923          */
 924         enum snd_soc_compress_type compress_type;
 925 };
 926
 927 struct snd_soc_aux_dev {
 928         const char *name;               /* Codec name */
 929         const char *codec_name;         /* for multi-codec */
 930
 931         /* codec/machine specific init - e.g. add machine controls */
 932         int (*init)(struct snd_soc_dapm_context *dapm);
 933 };
 934
 935 /* SoC card */
 936 struct snd_soc_card {
 937         const char *name;
 938         const char *long_name;
 939         const char *driver_name;
 940         struct device *dev;
 941         struct snd_card *snd_card;
 942         struct module *owner;
 943
 944         struct list_head list;
 945         struct mutex mutex;
 946         struct mutex dapm_mutex;
 947
 948         bool instantiated;
 949
 950         int (*probe)(struct snd_soc_card *card);
 951         int (*late_probe)(struct snd_soc_card *card);
 952         int (*remove)(struct snd_soc_card *card);
 953
 954         /* the pre and post PM functions are used to do any PM work before and
 955          * after the codec and DAI's do any PM work. */
 956         int (*suspend_pre)(struct snd_soc_card *card);
 957         int (*suspend_post)(struct snd_soc_card *card);
 958         int (*resume_pre)(struct snd_soc_card *card);
 959         int (*resume_post)(struct snd_soc_card *card);
 960
 961         /* callbacks */
 962         int (*set_bias_level)(struct snd_soc_card *,
 963                               struct snd_soc_dapm_context *dapm,
 964                               enum snd_soc_bias_level level);
 965         int (*set_bias_level_post)(struct snd_soc_card *,
 966                                    struct snd_soc_dapm_context *dapm,
 967                                    enum snd_soc_bias_level level);
 968
 969         long pmdown_time;
 970
 971         /* CPU <--> Codec DAI links  */
 972         struct snd_soc_dai_link *dai_link;
 973         int num_links;
 974         struct snd_soc_pcm_runtime *rtd;
 975         int num_rtd;
 976
 977         /* optional codec specific configuration */
 978         struct snd_soc_codec_conf *codec_conf;
 979         int num_configs;
 980
 981         /*
 982          * optional auxiliary devices such as amplifiers or codecs with DAI
 983          * link unused
 984          */
 985         struct snd_soc_aux_dev *aux_dev;
 986         int num_aux_devs;
 987         struct snd_soc_pcm_runtime *rtd_aux;
 988         int num_aux_rtd;
 989
 990         const struct snd_kcontrol_new *controls;
 991         int num_controls;
 992
 993         /*
 994          * Card-specific routes and widgets.
 995          */
 996         const struct snd_soc_dapm_widget *dapm_widgets;
 997         int num_dapm_widgets;
 998         const struct snd_soc_dapm_route *dapm_routes;
 999         int num_dapm_routes;
1000         bool fully_routed;
1001
1002         struct work_struct deferred_resume_work;
1003
1004         /* lists of probed devices belonging to this card */
1005         struct list_head codec_dev_list;
1006         struct list_head platform_dev_list;
1007         struct list_head dai_dev_list;
1008
1009         struct list_head widgets;
1010         struct list_head paths;
1011         struct list_head dapm_list;
1012         struct list_head dapm_dirty;
1013
1014         /* Generic DAPM context for the card */
1015         struct snd_soc_dapm_context dapm;
1016         struct snd_soc_dapm_stats dapm_stats;
1017
1018 #ifdef CONFIG_DEBUG_FS
1019         struct dentry *debugfs_card_root;
1020         struct dentry *debugfs_pop_time;
1021 #endif
1022         u32 pop_time;
1023
1024         void *drvdata;
1025 };
1026
1027 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1028 struct snd_soc_pcm_runtime {
1029         struct device *dev;
1030         struct snd_soc_card *card;
1031         struct snd_soc_dai_link *dai_link;
1032         struct mutex pcm_mutex;
1033         enum snd_soc_pcm_subclass pcm_subclass;
1034         struct snd_pcm_ops ops;
1035
1036         unsigned int dev_registered:1;
1037
1038         /* Dynamic PCM BE runtime data */
1039         struct snd_soc_dpcm_runtime dpcm[2];
1040
1041         long pmdown_time;
1042         unsigned char pop_wait:1;
1043
1044         /* runtime devices */
1045         struct snd_pcm *pcm;
1046         struct snd_compr *compr;
1047         struct snd_soc_codec *codec;
1048         struct snd_soc_platform *platform;
1049         struct snd_soc_dai *codec_dai;
1050         struct snd_soc_dai *cpu_dai;
1051
1052         struct delayed_work delayed_work;
1053 #ifdef CONFIG_DEBUG_FS
1054         struct dentry *debugfs_dpcm_root;
1055         struct dentry *debugfs_dpcm_state;
1056 #endif
1057 };
1058
1059 /* mixer control */
1060 struct soc_mixer_control {
1061         int min, max, platform_max;
1062         unsigned int reg, rreg, shift, rshift, invert;
1063 };
1064
1065 struct soc_bytes {
1066         int base;
1067         int num_regs;
1068         u32 mask;
1069 };
1070
1071 /* multi register control */
1072 struct soc_mreg_control {
1073         long min, max;
1074         unsigned int regbase, regcount, nbits, invert;
1075 };
1076
1077 /* enumerated kcontrol */
1078 struct soc_enum {
1079         unsigned short reg;
1080         unsigned short reg2;
1081         unsigned char shift_l;
1082         unsigned char shift_r;
1083         unsigned int max;
1084         unsigned int mask;
1085         const char * const *texts;
1086         const unsigned int *values;
1087         void *dapm;
1088 };
1089
1090 /* codec IO */
1091 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1092 unsigned int snd_soc_write(struct snd_soc_codec *codec,
1093                            unsigned int reg, unsigned int val);
1094 unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
1095                                     unsigned int reg, const void *data, size_t len);
1096
1097 /* device driver data */
1098
1099 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1100                 void *data)
1101 {
1102         card->drvdata = data;
1103 }
1104
1105 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1106 {
1107         return card->drvdata;
1108 }
1109
1110 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1111                 void *data)
1112 {
1113         dev_set_drvdata(codec->dev, data);
1114 }
1115
1116 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1117 {
1118         return dev_get_drvdata(codec->dev);
1119 }
1120
1121 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1122                 void *data)
1123 {
1124         dev_set_drvdata(platform->dev, data);
1125 }
1126
1127 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1128 {
1129         return dev_get_drvdata(platform->dev);
1130 }
1131
1132 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1133                 void *data)
1134 {
1135         dev_set_drvdata(rtd->dev, data);
1136 }
1137
1138 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1139 {
1140         return dev_get_drvdata(rtd->dev);
1141 }
1142
1143 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1144 {
1145         INIT_LIST_HEAD(&card->dai_dev_list);
1146         INIT_LIST_HEAD(&card->codec_dev_list);
1147         INIT_LIST_HEAD(&card->platform_dev_list);
1148         INIT_LIST_HEAD(&card->widgets);
1149         INIT_LIST_HEAD(&card->paths);
1150         INIT_LIST_HEAD(&card->dapm_list);
1151 }
1152
1153 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1154 {
1155         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1156                 return 0;
1157         /*
1158          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1159          * mc->reg != mc->rreg means that the control is
1160          * stereo (bits in one register or in two registers)
1161          */
1162         return 1;
1163 }
1164
1165 int snd_soc_util_init(void);
1166 void snd_soc_util_exit(void);
1167
1168 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1169                                const char *propname);
1170 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1171                                    const char *propname);
1172
1173 #include <sound/soc-dai.h>
1174
1175 #ifdef CONFIG_DEBUG_FS
1176 extern struct dentry *snd_soc_debugfs_root;
1177 #endif
1178
1179 extern const struct dev_pm_ops snd_soc_pm_ops;
1180
1181 #endif