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, .rreg = xreg, .shift = xshift, \
  62                  .rshift = xshift,  .min = xmin, .max = xmax, \
  63                  .platform_max = xmax, .invert = xinvert} }
  64 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  65 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  66         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  67                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  68         .tlv.p = (tlv_array), \
  69         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  70         .put = snd_soc_put_volsw, \
  71         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  72 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
  73 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  74         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  75         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  76         .tlv.p  = (tlv_array),\
  77         .info = snd_soc_info_volsw, \
  78         .get = snd_soc_get_volsw_sx,\
  79         .put = snd_soc_put_volsw_sx, \
  80         .private_value = (unsigned long)&(struct soc_mixer_control) \
  81                 {.reg = xreg, .rreg = xreg, \
  82                 .shift = xshift, .rshift = xshift, \
  83                 .max = xmax, .min = xmin} }
  84 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
  85 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  86         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  87                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  88         .tlv.p = (tlv_array), \
  89         .info = snd_soc_info_volsw_range, \
  90         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
  91         .private_value = (unsigned long)&(struct soc_mixer_control) \
  92                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
  93                  .rshift = xshift, .min = xmin, .max = xmax, \
  94                  .platform_max = xmax, .invert = xinvert} }
  95 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
  96 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  97         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
  98         .put = snd_soc_put_volsw, \
  99         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 100                                           max, invert) }
 101 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
 102 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 103         .info = snd_soc_info_volsw, \
 104         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 105         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 106                                             xmax, xinvert) }
 107 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
 108                            xmax, xinvert)               \
 109 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 110         .info = snd_soc_info_volsw_range, \
 111         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 112         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 113                                             xshift, xmin, xmax, xinvert) }
 114 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \
 115 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 116         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 117                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 118         .tlv.p = (tlv_array), \
 119         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 120         .put = snd_soc_put_volsw, \
 121         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 122                                           max, invert) }
 123 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
 124 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 125         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 126                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 127         .tlv.p = (tlv_array), \
 128         .info = snd_soc_info_volsw, \
 129         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 130         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 131                                             xmax, xinvert) }
 132 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
 133                                xmax, xinvert, tlv_array)                \
 134 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 135         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 136                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 137         .tlv.p = (tlv_array), \
 138         .info = snd_soc_info_volsw_range, \
 139         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 140         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 141                                             xshift, xmin, xmax, xinvert) }
 142 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
 143 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 144         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 145         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 146         .tlv.p  = (tlv_array), \
 147         .info = snd_soc_info_volsw, \
 148         .get = snd_soc_get_volsw_sx, \
 149         .put = snd_soc_put_volsw_sx, \
 150         .private_value = (unsigned long)&(struct soc_mixer_control) \
 151                 {.reg = xreg, .rreg = xrreg, \
 152                 .shift = xshift, .rshift = xshift, \
 153                 .max = xmax, .min = xmin} }
 154 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
 155 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 156         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 157                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 158         .tlv.p  = (tlv_array), \
 159         .info   = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
 160         .put    = snd_soc_put_volsw_s8, \
 161         .private_value = (unsigned long)&(struct soc_mixer_control) \
 162                 {.reg = xreg, .min = xmin, .max = xmax, \
 163                  .platform_max = xmax} }
 164 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
 165 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 166         .max = xmax, .texts = xtexts, \
 167         .mask = xmax ? roundup_pow_of_two(xmax) - 1 : 0}
 168 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
 169         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
 170 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
 171 {       .max = xmax, .texts = xtexts }
 172 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
 173 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 174         .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
 175 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
 176         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
 177 #define SOC_ENUM(xname, xenum) \
 178 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 179         .info = snd_soc_info_enum_double, \
 180         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 181         .private_value = (unsigned long)&xenum }
 182 #define SOC_VALUE_ENUM(xname, xenum) \
 183 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 184         .info = snd_soc_info_enum_double, \
 185         .get = snd_soc_get_value_enum_double, \
 186         .put = snd_soc_put_value_enum_double, \
 187         .private_value = (unsigned long)&xenum }
 188 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 189          xhandler_get, xhandler_put) \
 190 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 191         .info = snd_soc_info_volsw, \
 192         .get = xhandler_get, .put = xhandler_put, \
 193         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 194 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
 195          xhandler_get, xhandler_put) \
 196 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 197         .info = snd_soc_info_volsw, \
 198         .get = xhandler_get, .put = xhandler_put, \
 199         .private_value = \
 200                 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert) }
 201 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 202          xhandler_get, xhandler_put, tlv_array) \
 203 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 204         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 205                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 206         .tlv.p = (tlv_array), \
 207         .info = snd_soc_info_volsw, \
 208         .get = xhandler_get, .put = xhandler_put, \
 209         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 210 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 211          xhandler_get, xhandler_put, tlv_array) \
 212 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 213         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 214                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 215         .tlv.p = (tlv_array), \
 216         .info = snd_soc_info_volsw, \
 217         .get = xhandler_get, .put = xhandler_put, \
 218         .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
 219                                           xmax, xinvert) }
 220 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 221          xhandler_get, xhandler_put, tlv_array) \
 222 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 223         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 224                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 225         .tlv.p = (tlv_array), \
 226         .info = snd_soc_info_volsw, \
 227         .get = xhandler_get, .put = xhandler_put, \
 228         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 229                                             xmax, xinvert) }
 230 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 231 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 232         .info = snd_soc_info_bool_ext, \
 233         .get = xhandler_get, .put = xhandler_put, \
 234         .private_value = xdata }
 235 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 236 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 237         .info = snd_soc_info_enum_ext, \
 238         .get = xhandler_get, .put = xhandler_put, \
 239         .private_value = (unsigned long)&xenum }
 240
 241 #define SND_SOC_BYTES(xname, xbase, xregs)                    \
 242 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 243         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 244         .put = snd_soc_bytes_put, .private_value =            \
 245                 ((unsigned long)&(struct soc_bytes)           \
 246                 {.base = xbase, .num_regs = xregs }) }
 247
 248 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
 249 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 250         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 251         .put = snd_soc_bytes_put, .private_value =            \
 252                 ((unsigned long)&(struct soc_bytes)           \
 253                 {.base = xbase, .num_regs = xregs,            \
 254                  .mask = xmask }) }
 255
 256 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
 257                 xmin, xmax, xinvert) \
 258 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 259         .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
 260         .put = snd_soc_put_xr_sx, \
 261         .private_value = (unsigned long)&(struct soc_mreg_control) \
 262                 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
 263                 .invert = xinvert, .min = xmin, .max = xmax} }
 264
 265 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
 266         SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
 267                 snd_soc_get_strobe, snd_soc_put_strobe)
 268
 269 /*
 270  * Simplified versions of above macros, declaring a struct and calculating
 271  * ARRAY_SIZE internally
 272  */
 273 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 274         struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 275                                                 ARRAY_SIZE(xtexts), xtexts)
 276 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 277         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 278 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 279         struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 280 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 281         struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 282                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
 283 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 284         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 285
 286 /*
 287  * Component probe and remove ordering levels for components with runtime
 288  * dependencies.
 289  */
 290 #define SND_SOC_COMP_ORDER_FIRST                -2
 291 #define SND_SOC_COMP_ORDER_EARLY                -1
 292 #define SND_SOC_COMP_ORDER_NORMAL               0
 293 #define SND_SOC_COMP_ORDER_LATE         1
 294 #define SND_SOC_COMP_ORDER_LAST         2
 295
 296 /*
 297  * Bias levels
 298  *
 299  * @ON:      Bias is fully on for audio playback and capture operations.
 300  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 301  *           stream start and stop operations.
 302  * @STANDBY: Low power standby state when no playback/capture operations are
 303  *           in progress. NOTE: The transition time between STANDBY and ON
 304  *           should be as fast as possible and no longer than 10ms.
 305  * @OFF:     Power Off. No restrictions on transition times.
 306  */
 307 enum snd_soc_bias_level {
 308         SND_SOC_BIAS_OFF = 0,
 309         SND_SOC_BIAS_STANDBY = 1,
 310         SND_SOC_BIAS_PREPARE = 2,
 311         SND_SOC_BIAS_ON = 3,
 312 };
 313
 314 struct device_node;
 315 struct snd_jack;
 316 struct snd_soc_card;
 317 struct snd_soc_pcm_stream;
 318 struct snd_soc_ops;
 319 struct snd_soc_pcm_runtime;
 320 struct snd_soc_dai;
 321 struct snd_soc_dai_driver;
 322 struct snd_soc_platform;
 323 struct snd_soc_dai_link;
 324 struct snd_soc_platform_driver;
 325 struct snd_soc_codec;
 326 struct snd_soc_codec_driver;
 327 struct snd_soc_component;
 328 struct snd_soc_component_driver;
 329 struct soc_enum;
 330 struct snd_soc_jack;
 331 struct snd_soc_jack_zone;
 332 struct snd_soc_jack_pin;
 333 struct snd_soc_cache_ops;
 334 #include <sound/soc-dapm.h>
 335 #include <sound/soc-dpcm.h>
 336
 337 #ifdef CONFIG_GPIOLIB
 338 struct snd_soc_jack_gpio;
 339 #endif
 340
 341 typedef int (*hw_write_t)(void *,const char* ,int);
 342
 343 extern struct snd_ac97_bus_ops soc_ac97_ops;
 344
 345 enum snd_soc_control_type {
 346         SND_SOC_I2C = 1,
 347         SND_SOC_SPI,
 348         SND_SOC_REGMAP,
 349 };
 350
 351 enum snd_soc_compress_type {
 352         SND_SOC_FLAT_COMPRESSION = 1,
 353 };
 354
 355 enum snd_soc_pcm_subclass {
 356         SND_SOC_PCM_CLASS_PCM   = 0,
 357         SND_SOC_PCM_CLASS_BE    = 1,
 358 };
 359
 360 enum snd_soc_card_subclass {
 361         SND_SOC_CARD_CLASS_INIT         = 0,
 362         SND_SOC_CARD_CLASS_RUNTIME      = 1,
 363 };
 364
 365 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 366                              int source, unsigned int freq, int dir);
 367 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 368                           unsigned int freq_in, unsigned int freq_out);
 369
 370 int snd_soc_register_card(struct snd_soc_card *card);
 371 int snd_soc_unregister_card(struct snd_soc_card *card);
 372 int snd_soc_suspend(struct device *dev);
 373 int snd_soc_resume(struct device *dev);
 374 int snd_soc_poweroff(struct device *dev);
 375 int snd_soc_register_platform(struct device *dev,
 376                 const struct snd_soc_platform_driver *platform_drv);
 377 void snd_soc_unregister_platform(struct device *dev);
 378 int snd_soc_register_codec(struct device *dev,
 379                 const struct snd_soc_codec_driver *codec_drv,
 380                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 381 void snd_soc_unregister_codec(struct device *dev);
 382 int snd_soc_register_component(struct device *dev,
 383                          const struct snd_soc_component_driver *cmpnt_drv,
 384                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 385 void snd_soc_unregister_component(struct device *dev);
 386 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 387                                     unsigned int reg);
 388 int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
 389                                     unsigned int reg);
 390 int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
 391                                     unsigned int reg);
 392 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 393                                int addr_bits, int data_bits,
 394                                enum snd_soc_control_type control);
 395 int snd_soc_cache_sync(struct snd_soc_codec *codec);
 396 int snd_soc_cache_init(struct snd_soc_codec *codec);
 397 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 398 int snd_soc_cache_write(struct snd_soc_codec *codec,
 399                         unsigned int reg, unsigned int value);
 400 int snd_soc_cache_read(struct snd_soc_codec *codec,
 401                        unsigned int reg, unsigned int *value);
 402 int snd_soc_default_volatile_register(struct snd_soc_codec *codec,
 403                                       unsigned int reg);
 404 int snd_soc_default_readable_register(struct snd_soc_codec *codec,
 405                                       unsigned int reg);
 406 int snd_soc_default_writable_register(struct snd_soc_codec *codec,
 407                                       unsigned int reg);
 408 int snd_soc_platform_read(struct snd_soc_platform *platform,
 409                                         unsigned int reg);
 410 int snd_soc_platform_write(struct snd_soc_platform *platform,
 411                                         unsigned int reg, unsigned int val);
 412 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 413 int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
 414
 415 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 416                 const char *dai_link, int stream);
 417 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 418                 const char *dai_link);
 419
 420 /* Utility functions to get clock rates from various things */
 421 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 422 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 423 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 424 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 425
 426 /* set runtime hw params */
 427 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 428         const struct snd_pcm_hardware *hw);
 429
 430 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 431                 int cmd, struct snd_soc_platform *platform);
 432
 433 /* Jack reporting */
 434 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 435                      struct snd_soc_jack *jack);
 436 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 437 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 438                           struct snd_soc_jack_pin *pins);
 439 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 440                                     struct notifier_block *nb);
 441 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 442                                       struct notifier_block *nb);
 443 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 444                           struct snd_soc_jack_zone *zones);
 445 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 446 #ifdef CONFIG_GPIOLIB
 447 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 448                         struct snd_soc_jack_gpio *gpios);
 449 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 450                         struct snd_soc_jack_gpio *gpios);
 451 #endif
 452
 453 /* codec register bit access */
 454 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 455                                 unsigned int mask, unsigned int value);
 456 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 457                                unsigned short reg, unsigned int mask,
 458                                unsigned int value);
 459 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 460                                 unsigned int mask, unsigned int value);
 461
 462 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 463         struct snd_ac97_bus_ops *ops, int num);
 464 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 465
 466 /*
 467  *Controls
 468  */
 469 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 470                                   void *data, const char *long_name,
 471                                   const char *prefix);
 472 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 473         const struct snd_kcontrol_new *controls, int num_controls);
 474 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 475         const struct snd_kcontrol_new *controls, int num_controls);
 476 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 477         const struct snd_kcontrol_new *controls, int num_controls);
 478 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 479         const struct snd_kcontrol_new *controls, int num_controls);
 480 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 481         struct snd_ctl_elem_info *uinfo);
 482 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
 483         struct snd_ctl_elem_info *uinfo);
 484 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 485         struct snd_ctl_elem_value *ucontrol);
 486 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 487         struct snd_ctl_elem_value *ucontrol);
 488 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
 489         struct snd_ctl_elem_value *ucontrol);
 490 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
 491         struct snd_ctl_elem_value *ucontrol);
 492 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 493         struct snd_ctl_elem_info *uinfo);
 494 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
 495         struct snd_ctl_elem_info *uinfo);
 496 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 497 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 498         struct snd_ctl_elem_value *ucontrol);
 499 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 500         struct snd_ctl_elem_value *ucontrol);
 501 #define snd_soc_get_volsw_2r snd_soc_get_volsw
 502 #define snd_soc_put_volsw_2r snd_soc_put_volsw
 503 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 504         struct snd_ctl_elem_value *ucontrol);
 505 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 506         struct snd_ctl_elem_value *ucontrol);
 507 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
 508         struct snd_ctl_elem_info *uinfo);
 509 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 510         struct snd_ctl_elem_value *ucontrol);
 511 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 512         struct snd_ctl_elem_value *ucontrol);
 513 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
 514         struct snd_ctl_elem_info *uinfo);
 515 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 516         struct snd_ctl_elem_value *ucontrol);
 517 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
 518         struct snd_ctl_elem_value *ucontrol);
 519 int snd_soc_limit_volume(struct snd_soc_codec *codec,
 520         const char *name, int max);
 521 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
 522                        struct snd_ctl_elem_info *uinfo);
 523 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 524                       struct snd_ctl_elem_value *ucontrol);
 525 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 526                       struct snd_ctl_elem_value *ucontrol);
 527 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
 528         struct snd_ctl_elem_info *uinfo);
 529 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
 530         struct snd_ctl_elem_value *ucontrol);
 531 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 532         struct snd_ctl_elem_value *ucontrol);
 533 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 534         struct snd_ctl_elem_value *ucontrol);
 535 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 536         struct snd_ctl_elem_value *ucontrol);
 537
 538 /**
 539  * struct snd_soc_reg_access - Describes whether a given register is
 540  * readable, writable or volatile.
 541  *
 542  * @reg: the register number
 543  * @read: whether this register is readable
 544  * @write: whether this register is writable
 545  * @vol: whether this register is volatile
 546  */
 547 struct snd_soc_reg_access {
 548         u16 reg;
 549         u16 read;
 550         u16 write;
 551         u16 vol;
 552 };
 553
 554 /**
 555  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 556  *
 557  * @pin:    name of the pin to update
 558  * @mask:   bits to check for in reported jack status
 559  * @invert: if non-zero then pin is enabled when status is not reported
 560  */
 561 struct snd_soc_jack_pin {
 562         struct list_head list;
 563         const char *pin;
 564         int mask;
 565         bool invert;
 566 };
 567
 568 /**
 569  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 570  *
 571  * @min_mv: start voltage in mv
 572  * @max_mv: end voltage in mv
 573  * @jack_type: type of jack that is expected for this voltage
 574  * @debounce_time: debounce_time for jack, codec driver should wait for this
 575  *              duration before reading the adc for voltages
 576  * @:list: list container
 577  */
 578 struct snd_soc_jack_zone {
 579         unsigned int min_mv;
 580         unsigned int max_mv;
 581         unsigned int jack_type;
 582         unsigned int debounce_time;
 583         struct list_head list;
 584 };
 585
 586 /**
 587  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 588  *
 589  * @gpio:         gpio number
 590  * @name:         gpio name
 591  * @report:       value to report when jack detected
 592  * @invert:       report presence in low state
 593  * @debouce_time: debouce time in ms
 594  * @wake:         enable as wake source
 595  * @jack_status_check: callback function which overrides the detection
 596  *                     to provide more complex checks (eg, reading an
 597  *                     ADC).
 598  */
 599 #ifdef CONFIG_GPIOLIB
 600 struct snd_soc_jack_gpio {
 601         unsigned int gpio;
 602         const char *name;
 603         int report;
 604         int invert;
 605         int debounce_time;
 606         bool wake;
 607
 608         struct snd_soc_jack *jack;
 609         struct delayed_work work;
 610
 611         int (*jack_status_check)(void);
 612 };
 613 #endif
 614
 615 struct snd_soc_jack {
 616         struct mutex mutex;
 617         struct snd_jack *jack;
 618         struct snd_soc_codec *codec;
 619         struct list_head pins;
 620         int status;
 621         struct blocking_notifier_head notifier;
 622         struct list_head jack_zones;
 623 };
 624
 625 /* SoC PCM stream information */
 626 struct snd_soc_pcm_stream {
 627         const char *stream_name;
 628         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 629         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 630         unsigned int rate_min;          /* min rate */
 631         unsigned int rate_max;          /* max rate */
 632         unsigned int channels_min;      /* min channels */
 633         unsigned int channels_max;      /* max channels */
 634         unsigned int sig_bits;          /* number of bits of content */
 635 };
 636
 637 /* SoC audio ops */
 638 struct snd_soc_ops {
 639         int (*startup)(struct snd_pcm_substream *);
 640         void (*shutdown)(struct snd_pcm_substream *);
 641         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 642         int (*hw_free)(struct snd_pcm_substream *);
 643         int (*prepare)(struct snd_pcm_substream *);
 644         int (*trigger)(struct snd_pcm_substream *, int);
 645 };
 646
 647 struct snd_soc_compr_ops {
 648         int (*startup)(struct snd_compr_stream *);
 649         void (*shutdown)(struct snd_compr_stream *);
 650         int (*set_params)(struct snd_compr_stream *);
 651         int (*trigger)(struct snd_compr_stream *);
 652 };
 653
 654 /* SoC cache ops */
 655 struct snd_soc_cache_ops {
 656         const char *name;
 657         enum snd_soc_compress_type id;
 658         int (*init)(struct snd_soc_codec *codec);
 659         int (*exit)(struct snd_soc_codec *codec);
 660         int (*read)(struct snd_soc_codec *codec, unsigned int reg,
 661                 unsigned int *value);
 662         int (*write)(struct snd_soc_codec *codec, unsigned int reg,
 663                 unsigned int value);
 664         int (*sync)(struct snd_soc_codec *codec);
 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         enum snd_soc_compress_type compress_type;
 681         size_t reg_size;        /* reg_cache_size * reg_word_size */
 682         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 683         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 684         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 685
 686         /* runtime */
 687         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 688         unsigned int active;
 689         unsigned int cache_bypass:1; /* Suppress access to the cache */
 690         unsigned int suspended:1; /* Codec is in suspend PM state */
 691         unsigned int probed:1; /* Codec has been probed */
 692         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 693         unsigned int ac97_created:1; /* Codec has been created by SoC */
 694         unsigned int sysfs_registered:1; /* codec has been sysfs registered */
 695         unsigned int cache_init:1; /* codec cache has been initialized */
 696         unsigned int using_regmap:1; /* using regmap access */
 697         u32 cache_only;  /* Suppress writes to hardware */
 698         u32 cache_sync; /* Cache needs to be synced to hardware */
 699
 700         /* codec IO */
 701         void *control_data; /* codec control (i2c/3wire) data */
 702         enum snd_soc_control_type control_type;
 703         hw_write_t hw_write;
 704         unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 705         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 706         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 707         int (*bulk_write_raw)(struct snd_soc_codec *, unsigned int, const void *, size_t);
 708         void *reg_cache;
 709         const void *reg_def_copy;
 710         const struct snd_soc_cache_ops *cache_ops;
 711         struct mutex cache_rw_mutex;
 712         int val_bytes;
 713
 714         /* dapm */
 715         struct snd_soc_dapm_context dapm;
 716         unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 717
 718 #ifdef CONFIG_DEBUG_FS
 719         struct dentry *debugfs_codec_root;
 720         struct dentry *debugfs_reg;
 721         struct dentry *debugfs_dapm;
 722 #endif
 723 };
 724
 725 /* codec driver */
 726 struct snd_soc_codec_driver {
 727
 728         /* driver ops */
 729         int (*probe)(struct snd_soc_codec *);
 730         int (*remove)(struct snd_soc_codec *);
 731         int (*suspend)(struct snd_soc_codec *);
 732         int (*resume)(struct snd_soc_codec *);
 733
 734         /* Default control and setup, added after probe() is run */
 735         const struct snd_kcontrol_new *controls;
 736         int num_controls;
 737         const struct snd_soc_dapm_widget *dapm_widgets;
 738         int num_dapm_widgets;
 739         const struct snd_soc_dapm_route *dapm_routes;
 740         int num_dapm_routes;
 741
 742         /* codec wide operations */
 743         int (*set_sysclk)(struct snd_soc_codec *codec,
 744                           int clk_id, int source, unsigned int freq, int dir);
 745         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 746                 unsigned int freq_in, unsigned int freq_out);
 747
 748         /* codec IO */
 749         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 750         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 751         int (*display_register)(struct snd_soc_codec *, char *,
 752                                 size_t, unsigned int);
 753         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 754         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 755         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 756         unsigned int reg_cache_size;
 757         short reg_cache_step;
 758         short reg_word_size;
 759         const void *reg_cache_default;
 760         short reg_access_size;
 761         const struct snd_soc_reg_access *reg_access_default;
 762         enum snd_soc_compress_type compress_type;
 763
 764         /* codec bias level */
 765         int (*set_bias_level)(struct snd_soc_codec *,
 766                               enum snd_soc_bias_level level);
 767         bool idle_bias_off;
 768
 769         void (*seq_notifier)(struct snd_soc_dapm_context *,
 770                              enum snd_soc_dapm_type, int);
 771
 772         /* codec stream completion event */
 773         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 774
 775         bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 776
 777         /* probe ordering - for components with runtime dependencies */
 778         int probe_order;
 779         int remove_order;
 780 };
 781
 782 /* SoC platform interface */
 783 struct snd_soc_platform_driver {
 784
 785         int (*probe)(struct snd_soc_platform *);
 786         int (*remove)(struct snd_soc_platform *);
 787         int (*suspend)(struct snd_soc_dai *dai);
 788         int (*resume)(struct snd_soc_dai *dai);
 789
 790         /* pcm creation and destruction */
 791         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 792         void (*pcm_free)(struct snd_pcm *);
 793
 794         /* Default control and setup, added after probe() is run */
 795         const struct snd_kcontrol_new *controls;
 796         int num_controls;
 797         const struct snd_soc_dapm_widget *dapm_widgets;
 798         int num_dapm_widgets;
 799         const struct snd_soc_dapm_route *dapm_routes;
 800         int num_dapm_routes;
 801
 802         /*
 803          * For platform caused delay reporting.
 804          * Optional.
 805          */
 806         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 807                 struct snd_soc_dai *);
 808
 809         /* platform stream pcm ops */
 810         const struct snd_pcm_ops *ops;
 811
 812         /* platform stream compress ops */
 813         const struct snd_compr_ops *compr_ops;
 814
 815         /* platform stream completion event */
 816         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 817
 818         /* probe ordering - for components with runtime dependencies */
 819         int probe_order;
 820         int remove_order;
 821
 822         /* platform IO - used for platform DAPM */
 823         unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 824         int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 825         int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 826 };
 827
 828 struct snd_soc_platform {
 829         const char *name;
 830         int id;
 831         struct device *dev;
 832         const struct snd_soc_platform_driver *driver;
 833         struct mutex mutex;
 834
 835         unsigned int suspended:1; /* platform is suspended */
 836         unsigned int probed:1;
 837
 838         struct snd_soc_card *card;
 839         struct list_head list;
 840         struct list_head card_list;
 841
 842         struct snd_soc_dapm_context dapm;
 843
 844 #ifdef CONFIG_DEBUG_FS
 845         struct dentry *debugfs_platform_root;
 846         struct dentry *debugfs_dapm;
 847 #endif
 848 };
 849
 850 struct snd_soc_component_driver {
 851         const char *name;
 852 };
 853
 854 struct snd_soc_component {
 855         const char *name;
 856         int id;
 857         int num_dai;
 858         struct device *dev;
 859         struct list_head list;
 860
 861         const struct snd_soc_component_driver *driver;
 862 };
 863
 864 struct snd_soc_dai_link {
 865         /* config - must be set by machine driver */
 866         const char *name;                       /* Codec name */
 867         const char *stream_name;                /* Stream name */
 868         /*
 869          * You MAY specify the link's CPU-side device, either by device name,
 870          * or by DT/OF node, but not both. If this information is omitted,
 871          * the CPU-side DAI is matched using .cpu_dai_name only, which hence
 872          * must be globally unique. These fields are currently typically used
 873          * only for codec to codec links, or systems using device tree.
 874          */
 875         const char *cpu_name;
 876         const struct device_node *cpu_of_node;
 877         /*
 878          * You MAY specify the DAI name of the CPU DAI. If this information is
 879          * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
 880          * only, which only works well when that device exposes a single DAI.
 881          */
 882         const char *cpu_dai_name;
 883         /*
 884          * You MUST specify the link's codec, either by device name, or by
 885          * DT/OF node, but not both.
 886          */
 887         const char *codec_name;
 888         const struct device_node *codec_of_node;
 889         /* You MUST specify the DAI name within the codec */
 890         const char *codec_dai_name;
 891         /*
 892          * You MAY specify the link's platform/PCM/DMA driver, either by
 893          * device name, or by DT/OF node, but not both. Some forms of link
 894          * do not need a platform.
 895          */
 896         const char *platform_name;
 897         const struct device_node *platform_of_node;
 898         int be_id;      /* optional ID for machine driver BE identification */
 899
 900         const struct snd_soc_pcm_stream *params;
 901
 902         unsigned int dai_fmt;           /* format to set on init */
 903
 904         enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
 905
 906         /* Keep DAI active over suspend */
 907         unsigned int ignore_suspend:1;
 908
 909         /* Symmetry requirements */
 910         unsigned int symmetric_rates:1;
 911
 912         /* Do not create a PCM for this DAI link (Backend link) */
 913         unsigned int no_pcm:1;
 914
 915         /* This DAI link can route to other DAI links at runtime (Frontend)*/
 916         unsigned int dynamic:1;
 917
 918         /* pmdown_time is ignored at stop */
 919         unsigned int ignore_pmdown_time:1;
 920
 921         /* codec/machine specific init - e.g. add machine controls */
 922         int (*init)(struct snd_soc_pcm_runtime *rtd);
 923
 924         /* optional hw_params re-writing for BE and FE sync */
 925         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 926                         struct snd_pcm_hw_params *params);
 927
 928         /* machine stream operations */
 929         const struct snd_soc_ops *ops;
 930         const struct snd_soc_compr_ops *compr_ops;
 931 };
 932
 933 struct snd_soc_codec_conf {
 934         const char *dev_name;
 935
 936         /*
 937          * optional map of kcontrol, widget and path name prefixes that are
 938          * associated per device
 939          */
 940         const char *name_prefix;
 941
 942         /*
 943          * set this to the desired compression type if you want to
 944          * override the one supplied in codec->driver->compress_type
 945          */
 946         enum snd_soc_compress_type compress_type;
 947 };
 948
 949 struct snd_soc_aux_dev {
 950         const char *name;               /* Codec name */
 951         const char *codec_name;         /* for multi-codec */
 952
 953         /* codec/machine specific init - e.g. add machine controls */
 954         int (*init)(struct snd_soc_dapm_context *dapm);
 955 };
 956
 957 /* SoC card */
 958 struct snd_soc_card {
 959         const char *name;
 960         const char *long_name;
 961         const char *driver_name;
 962         struct device *dev;
 963         struct snd_card *snd_card;
 964         struct module *owner;
 965
 966         struct list_head list;
 967         struct mutex mutex;
 968         struct mutex dapm_mutex;
 969
 970         bool instantiated;
 971
 972         int (*probe)(struct snd_soc_card *card);
 973         int (*late_probe)(struct snd_soc_card *card);
 974         int (*remove)(struct snd_soc_card *card);
 975
 976         /* the pre and post PM functions are used to do any PM work before and
 977          * after the codec and DAI's do any PM work. */
 978         int (*suspend_pre)(struct snd_soc_card *card);
 979         int (*suspend_post)(struct snd_soc_card *card);
 980         int (*resume_pre)(struct snd_soc_card *card);
 981         int (*resume_post)(struct snd_soc_card *card);
 982
 983         /* callbacks */
 984         int (*set_bias_level)(struct snd_soc_card *,
 985                               struct snd_soc_dapm_context *dapm,
 986                               enum snd_soc_bias_level level);
 987         int (*set_bias_level_post)(struct snd_soc_card *,
 988                                    struct snd_soc_dapm_context *dapm,
 989                                    enum snd_soc_bias_level level);
 990
 991         long pmdown_time;
 992
 993         /* CPU <--> Codec DAI links  */
 994         struct snd_soc_dai_link *dai_link;
 995         int num_links;
 996         struct snd_soc_pcm_runtime *rtd;
 997         int num_rtd;
 998
 999         /* optional codec specific configuration */
1000         struct snd_soc_codec_conf *codec_conf;
1001         int num_configs;
1002
1003         /*
1004          * optional auxiliary devices such as amplifiers or codecs with DAI
1005          * link unused
1006          */
1007         struct snd_soc_aux_dev *aux_dev;
1008         int num_aux_devs;
1009         struct snd_soc_pcm_runtime *rtd_aux;
1010         int num_aux_rtd;
1011
1012         const struct snd_kcontrol_new *controls;
1013         int num_controls;
1014
1015         /*
1016          * Card-specific routes and widgets.
1017          */
1018         const struct snd_soc_dapm_widget *dapm_widgets;
1019         int num_dapm_widgets;
1020         const struct snd_soc_dapm_route *dapm_routes;
1021         int num_dapm_routes;
1022         bool fully_routed;
1023
1024         struct work_struct deferred_resume_work;
1025
1026         /* lists of probed devices belonging to this card */
1027         struct list_head codec_dev_list;
1028         struct list_head platform_dev_list;
1029         struct list_head dai_dev_list;
1030
1031         struct list_head widgets;
1032         struct list_head paths;
1033         struct list_head dapm_list;
1034         struct list_head dapm_dirty;
1035
1036         /* Generic DAPM context for the card */
1037         struct snd_soc_dapm_context dapm;
1038         struct snd_soc_dapm_stats dapm_stats;
1039
1040 #ifdef CONFIG_DEBUG_FS
1041         struct dentry *debugfs_card_root;
1042         struct dentry *debugfs_pop_time;
1043 #endif
1044         u32 pop_time;
1045
1046         void *drvdata;
1047 };
1048
1049 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1050 struct snd_soc_pcm_runtime {
1051         struct device *dev;
1052         struct snd_soc_card *card;
1053         struct snd_soc_dai_link *dai_link;
1054         struct mutex pcm_mutex;
1055         enum snd_soc_pcm_subclass pcm_subclass;
1056         struct snd_pcm_ops ops;
1057
1058         unsigned int dev_registered:1;
1059
1060         /* Dynamic PCM BE runtime data */
1061         struct snd_soc_dpcm_runtime dpcm[2];
1062
1063         long pmdown_time;
1064         unsigned char pop_wait:1;
1065
1066         /* runtime devices */
1067         struct snd_pcm *pcm;
1068         struct snd_compr *compr;
1069         struct snd_soc_codec *codec;
1070         struct snd_soc_platform *platform;
1071         struct snd_soc_dai *codec_dai;
1072         struct snd_soc_dai *cpu_dai;
1073
1074         struct delayed_work delayed_work;
1075 #ifdef CONFIG_DEBUG_FS
1076         struct dentry *debugfs_dpcm_root;
1077         struct dentry *debugfs_dpcm_state;
1078 #endif
1079 };
1080
1081 /* mixer control */
1082 struct soc_mixer_control {
1083         int min, max, platform_max;
1084         unsigned int reg, rreg, shift, rshift, invert;
1085 };
1086
1087 struct soc_bytes {
1088         int base;
1089         int num_regs;
1090         u32 mask;
1091 };
1092
1093 /* multi register control */
1094 struct soc_mreg_control {
1095         long min, max;
1096         unsigned int regbase, regcount, nbits, invert;
1097 };
1098
1099 /* enumerated kcontrol */
1100 struct soc_enum {
1101         unsigned short reg;
1102         unsigned short reg2;
1103         unsigned char shift_l;
1104         unsigned char shift_r;
1105         unsigned int max;
1106         unsigned int mask;
1107         const char * const *texts;
1108         const unsigned int *values;
1109 };
1110
1111 /* codec IO */
1112 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1113 unsigned int snd_soc_write(struct snd_soc_codec *codec,
1114                            unsigned int reg, unsigned int val);
1115 unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
1116                                     unsigned int reg, const void *data, size_t len);
1117
1118 /* device driver data */
1119
1120 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1121                 void *data)
1122 {
1123         card->drvdata = data;
1124 }
1125
1126 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1127 {
1128         return card->drvdata;
1129 }
1130
1131 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1132                 void *data)
1133 {
1134         dev_set_drvdata(codec->dev, data);
1135 }
1136
1137 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1138 {
1139         return dev_get_drvdata(codec->dev);
1140 }
1141
1142 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1143                 void *data)
1144 {
1145         dev_set_drvdata(platform->dev, data);
1146 }
1147
1148 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1149 {
1150         return dev_get_drvdata(platform->dev);
1151 }
1152
1153 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1154                 void *data)
1155 {
1156         dev_set_drvdata(rtd->dev, data);
1157 }
1158
1159 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1160 {
1161         return dev_get_drvdata(rtd->dev);
1162 }
1163
1164 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1165 {
1166         INIT_LIST_HEAD(&card->dai_dev_list);
1167         INIT_LIST_HEAD(&card->codec_dev_list);
1168         INIT_LIST_HEAD(&card->platform_dev_list);
1169         INIT_LIST_HEAD(&card->widgets);
1170         INIT_LIST_HEAD(&card->paths);
1171         INIT_LIST_HEAD(&card->dapm_list);
1172 }
1173
1174 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1175 {
1176         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1177                 return 0;
1178         /*
1179          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1180          * mc->reg != mc->rreg means that the control is
1181          * stereo (bits in one register or in two registers)
1182          */
1183         return 1;
1184 }
1185
1186 int snd_soc_util_init(void);
1187 void snd_soc_util_exit(void);
1188
1189 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1190                                const char *propname);
1191 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1192                                    const char *propname);
1193 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
1194                                      const char *prefix);
1195
1196 #include <sound/soc-dai.h>
1197
1198 #ifdef CONFIG_DEBUG_FS
1199 extern struct dentry *snd_soc_debugfs_root;
1200 #endif
1201
1202 extern const struct dev_pm_ops snd_soc_pm_ops;
1203
1204 #endif