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 <sound/core.h>
  24 #include <sound/pcm.h>
  25 #include <sound/control.h>
  26 #include <sound/ac97_codec.h>
  27
  28 /*
  29  * Convenience kcontrol builders
  30  */
  31 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert) \
  32         ((unsigned long)&(struct soc_mixer_control) \
  33         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
  34         .rshift = shift_right, .max = xmax, .platform_max = xmax, \
  35         .invert = xinvert})
  36 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
  37         SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert)
  38 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
  39         ((unsigned long)&(struct soc_mixer_control) \
  40         {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
  41 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
  42         ((unsigned long)&(struct soc_mixer_control) \
  43         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  44         .max = xmax, .platform_max = xmax, .invert = xinvert})
  45 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \
  46         ((unsigned long)&(struct soc_mixer_control) \
  47         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  48         .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert})
  49 #define SOC_SINGLE(xname, reg, shift, max, invert) \
  50 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  51         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  52         .put = snd_soc_put_volsw, \
  53         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  54 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
  55 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  56         .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
  57         .put = snd_soc_put_volsw_range, \
  58         .private_value = (unsigned long)&(struct soc_mixer_control) \
  59                 {.reg = xreg, .shift = xshift, .min = xmin,\
  60                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
  61 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  62 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  63         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  64                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  65         .tlv.p = (tlv_array), \
  66         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  67         .put = snd_soc_put_volsw, \
  68         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  69 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
  70 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  71         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  72         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  73         .tlv.p  = (tlv_array),\
  74         .info = snd_soc_info_volsw, \
  75         .get = snd_soc_get_volsw_sx,\
  76         .put = snd_soc_put_volsw_sx, \
  77         .private_value = (unsigned long)&(struct soc_mixer_control) \
  78                 {.reg = xreg, .rreg = xreg, \
  79                 .shift = xshift, .rshift = xshift, \
  80                 .max = xmax, .min = xmin} }
  81 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
  82 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  83         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  84                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  85         .tlv.p = (tlv_array), \
  86         .info = snd_soc_info_volsw_range, \
  87         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
  88         .private_value = (unsigned long)&(struct soc_mixer_control) \
  89                 {.reg = xreg, .shift = xshift, .min = xmin,\
  90                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
  91 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
  92 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  93         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
  94         .put = snd_soc_put_volsw, \
  95         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
  96                                           max, invert) }
  97 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
  98 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
  99         .info = snd_soc_info_volsw, \
 100         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 101         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 102                                             xmax, xinvert) }
 103 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
 104                            xmax, xinvert)               \
 105 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 106         .info = snd_soc_info_volsw_range, \
 107         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 108         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 109                                             xshift, xmin, xmax, xinvert) }
 110 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \
 111 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 112         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 113                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 114         .tlv.p = (tlv_array), \
 115         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 116         .put = snd_soc_put_volsw, \
 117         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 118                                           max, invert) }
 119 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
 120 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 121         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 122                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 123         .tlv.p = (tlv_array), \
 124         .info = snd_soc_info_volsw, \
 125         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 126         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 127                                             xmax, xinvert) }
 128 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
 129                                xmax, xinvert, tlv_array)                \
 130 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 131         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 132                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 133         .tlv.p = (tlv_array), \
 134         .info = snd_soc_info_volsw_range, \
 135         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 136         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 137                                             xshift, xmin, xmax, xinvert) }
 138 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
 139 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 140         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 141         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 142         .tlv.p  = (tlv_array), \
 143         .info = snd_soc_info_volsw, \
 144         .get = snd_soc_get_volsw_sx, \
 145         .put = snd_soc_put_volsw_sx, \
 146         .private_value = (unsigned long)&(struct soc_mixer_control) \
 147                 {.reg = xreg, .rreg = xrreg, \
 148                 .shift = xshift, .rshift = xshift, \
 149                 .max = xmax, .min = xmin} }
 150 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
 151 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 152         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 153                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 154         .tlv.p  = (tlv_array), \
 155         .info   = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
 156         .put    = snd_soc_put_volsw_s8, \
 157         .private_value = (unsigned long)&(struct soc_mixer_control) \
 158                 {.reg = xreg, .min = xmin, .max = xmax, \
 159                  .platform_max = xmax} }
 160 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
 161 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 162         .max = xmax, .texts = xtexts }
 163 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
 164         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
 165 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
 166 {       .max = xmax, .texts = xtexts }
 167 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
 168 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 169         .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
 170 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
 171         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
 172 #define SOC_ENUM(xname, xenum) \
 173 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 174         .info = snd_soc_info_enum_double, \
 175         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 176         .private_value = (unsigned long)&xenum }
 177 #define SOC_VALUE_ENUM(xname, xenum) \
 178 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 179         .info = snd_soc_info_enum_double, \
 180         .get = snd_soc_get_value_enum_double, \
 181         .put = snd_soc_put_value_enum_double, \
 182         .private_value = (unsigned long)&xenum }
 183 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 184          xhandler_get, xhandler_put) \
 185 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 186         .info = snd_soc_info_volsw, \
 187         .get = xhandler_get, .put = xhandler_put, \
 188         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 189 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
 190          xhandler_get, xhandler_put) \
 191 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 192         .info = snd_soc_info_volsw, \
 193         .get = xhandler_get, .put = xhandler_put, \
 194         .private_value = \
 195                 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert) }
 196 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 197          xhandler_get, xhandler_put, tlv_array) \
 198 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 199         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 200                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 201         .tlv.p = (tlv_array), \
 202         .info = snd_soc_info_volsw, \
 203         .get = xhandler_get, .put = xhandler_put, \
 204         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 205 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 206          xhandler_get, xhandler_put, tlv_array) \
 207 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 208         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 209                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 210         .tlv.p = (tlv_array), \
 211         .info = snd_soc_info_volsw, \
 212         .get = xhandler_get, .put = xhandler_put, \
 213         .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
 214                                           xmax, xinvert) }
 215 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 216          xhandler_get, xhandler_put, tlv_array) \
 217 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 218         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 219                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 220         .tlv.p = (tlv_array), \
 221         .info = snd_soc_info_volsw, \
 222         .get = xhandler_get, .put = xhandler_put, \
 223         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 224                                             xmax, xinvert) }
 225 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 226 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 227         .info = snd_soc_info_bool_ext, \
 228         .get = xhandler_get, .put = xhandler_put, \
 229         .private_value = xdata }
 230 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 231 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 232         .info = snd_soc_info_enum_ext, \
 233         .get = xhandler_get, .put = xhandler_put, \
 234         .private_value = (unsigned long)&xenum }
 235
 236 #define SND_SOC_BYTES(xname, xbase, xregs)                    \
 237 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 238         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 239         .put = snd_soc_bytes_put, .private_value =            \
 240                 ((unsigned long)&(struct soc_bytes)           \
 241                 {.base = xbase, .num_regs = xregs }) }
 242
 243 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
 244 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 245         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 246         .put = snd_soc_bytes_put, .private_value =            \
 247                 ((unsigned long)&(struct soc_bytes)           \
 248                 {.base = xbase, .num_regs = xregs,            \
 249                  .mask = xmask }) }
 250
 251 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
 252                 xmin, xmax, xinvert) \
 253 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 254         .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
 255         .put = snd_soc_put_xr_sx, \
 256         .private_value = (unsigned long)&(struct soc_mreg_control) \
 257                 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
 258                 .invert = xinvert, .min = xmin, .max = xmax} }
 259
 260 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
 261         SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
 262                 snd_soc_get_strobe, snd_soc_put_strobe)
 263
 264 /*
 265  * Simplified versions of above macros, declaring a struct and calculating
 266  * ARRAY_SIZE internally
 267  */
 268 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 269         struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 270                                                 ARRAY_SIZE(xtexts), xtexts)
 271 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 272         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 273 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 274         struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 275 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 276         struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 277                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
 278 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 279         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 280
 281 /*
 282  * Component probe and remove ordering levels for components with runtime
 283  * dependencies.
 284  */
 285 #define SND_SOC_COMP_ORDER_FIRST                -2
 286 #define SND_SOC_COMP_ORDER_EARLY                -1
 287 #define SND_SOC_COMP_ORDER_NORMAL               0
 288 #define SND_SOC_COMP_ORDER_LATE         1
 289 #define SND_SOC_COMP_ORDER_LAST         2
 290
 291 /*
 292  * Bias levels
 293  *
 294  * @ON:      Bias is fully on for audio playback and capture operations.
 295  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 296  *           stream start and stop operations.
 297  * @STANDBY: Low power standby state when no playback/capture operations are
 298  *           in progress. NOTE: The transition time between STANDBY and ON
 299  *           should be as fast as possible and no longer than 10ms.
 300  * @OFF:     Power Off. No restrictions on transition times.
 301  */
 302 enum snd_soc_bias_level {
 303         SND_SOC_BIAS_OFF = 0,
 304         SND_SOC_BIAS_STANDBY = 1,
 305         SND_SOC_BIAS_PREPARE = 2,
 306         SND_SOC_BIAS_ON = 3,
 307 };
 308
 309 struct device_node;
 310 struct snd_jack;
 311 struct snd_soc_card;
 312 struct snd_soc_pcm_stream;
 313 struct snd_soc_ops;
 314 struct snd_soc_pcm_runtime;
 315 struct snd_soc_dai;
 316 struct snd_soc_dai_driver;
 317 struct snd_soc_platform;
 318 struct snd_soc_dai_link;
 319 struct snd_soc_platform_driver;
 320 struct snd_soc_codec;
 321 struct snd_soc_codec_driver;
 322 struct soc_enum;
 323 struct snd_soc_jack;
 324 struct snd_soc_jack_zone;
 325 struct snd_soc_jack_pin;
 326 struct snd_soc_cache_ops;
 327 #include <sound/soc-dapm.h>
 328 #include <sound/soc-dpcm.h>
 329
 330 #ifdef CONFIG_GPIOLIB
 331 struct snd_soc_jack_gpio;
 332 #endif
 333
 334 typedef int (*hw_write_t)(void *,const char* ,int);
 335
 336 extern struct snd_ac97_bus_ops soc_ac97_ops;
 337
 338 enum snd_soc_control_type {
 339         SND_SOC_I2C = 1,
 340         SND_SOC_SPI,
 341         SND_SOC_REGMAP,
 342 };
 343
 344 enum snd_soc_compress_type {
 345         SND_SOC_FLAT_COMPRESSION = 1,
 346 };
 347
 348 enum snd_soc_pcm_subclass {
 349         SND_SOC_PCM_CLASS_PCM   = 0,
 350         SND_SOC_PCM_CLASS_BE    = 1,
 351 };
 352
 353 enum snd_soc_card_subclass {
 354         SND_SOC_CARD_CLASS_INIT         = 0,
 355         SND_SOC_CARD_CLASS_RUNTIME      = 1,
 356 };
 357
 358 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 359                              int source, unsigned int freq, int dir);
 360 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 361                           unsigned int freq_in, unsigned int freq_out);
 362
 363 int snd_soc_register_card(struct snd_soc_card *card);
 364 int snd_soc_unregister_card(struct snd_soc_card *card);
 365 int snd_soc_suspend(struct device *dev);
 366 int snd_soc_resume(struct device *dev);
 367 int snd_soc_poweroff(struct device *dev);
 368 int snd_soc_register_platform(struct device *dev,
 369                 struct snd_soc_platform_driver *platform_drv);
 370 void snd_soc_unregister_platform(struct device *dev);
 371 int snd_soc_register_codec(struct device *dev,
 372                 const struct snd_soc_codec_driver *codec_drv,
 373                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 374 void snd_soc_unregister_codec(struct device *dev);
 375 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 376                                     unsigned int reg);
 377 int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
 378                                     unsigned int reg);
 379 int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
 380                                     unsigned int reg);
 381 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 382                                int addr_bits, int data_bits,
 383                                enum snd_soc_control_type control);
 384 int snd_soc_cache_sync(struct snd_soc_codec *codec);
 385 int snd_soc_cache_init(struct snd_soc_codec *codec);
 386 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 387 int snd_soc_cache_write(struct snd_soc_codec *codec,
 388                         unsigned int reg, unsigned int value);
 389 int snd_soc_cache_read(struct snd_soc_codec *codec,
 390                        unsigned int reg, unsigned int *value);
 391 int snd_soc_default_volatile_register(struct snd_soc_codec *codec,
 392                                       unsigned int reg);
 393 int snd_soc_default_readable_register(struct snd_soc_codec *codec,
 394                                       unsigned int reg);
 395 int snd_soc_default_writable_register(struct snd_soc_codec *codec,
 396                                       unsigned int reg);
 397 int snd_soc_platform_read(struct snd_soc_platform *platform,
 398                                         unsigned int reg);
 399 int snd_soc_platform_write(struct snd_soc_platform *platform,
 400                                         unsigned int reg, unsigned int val);
 401 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 402
 403 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 404                 const char *dai_link, int stream);
 405 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 406                 const char *dai_link);
 407
 408 /* Utility functions to get clock rates from various things */
 409 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 410 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 411 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 412 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 413
 414 /* set runtime hw params */
 415 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 416         const struct snd_pcm_hardware *hw);
 417
 418 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 419                 int cmd, struct snd_soc_platform *platform);
 420
 421 /* Jack reporting */
 422 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 423                      struct snd_soc_jack *jack);
 424 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 425 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 426                           struct snd_soc_jack_pin *pins);
 427 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 428                                     struct notifier_block *nb);
 429 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 430                                       struct notifier_block *nb);
 431 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 432                           struct snd_soc_jack_zone *zones);
 433 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 434 #ifdef CONFIG_GPIOLIB
 435 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 436                         struct snd_soc_jack_gpio *gpios);
 437 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 438                         struct snd_soc_jack_gpio *gpios);
 439 #endif
 440
 441 /* codec register bit access */
 442 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 443                                 unsigned int mask, unsigned int value);
 444 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 445                                unsigned short reg, unsigned int mask,
 446                                unsigned int value);
 447 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 448                                 unsigned int mask, unsigned int value);
 449
 450 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 451         struct snd_ac97_bus_ops *ops, int num);
 452 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 453
 454 /*
 455  *Controls
 456  */
 457 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 458                                   void *data, const char *long_name,
 459                                   const char *prefix);
 460 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 461         const struct snd_kcontrol_new *controls, int num_controls);
 462 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 463         const struct snd_kcontrol_new *controls, int num_controls);
 464 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 465         const struct snd_kcontrol_new *controls, int num_controls);
 466 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 467         const struct snd_kcontrol_new *controls, int num_controls);
 468 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 469         struct snd_ctl_elem_info *uinfo);
 470 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
 471         struct snd_ctl_elem_info *uinfo);
 472 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 473         struct snd_ctl_elem_value *ucontrol);
 474 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 475         struct snd_ctl_elem_value *ucontrol);
 476 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
 477         struct snd_ctl_elem_value *ucontrol);
 478 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
 479         struct snd_ctl_elem_value *ucontrol);
 480 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 481         struct snd_ctl_elem_info *uinfo);
 482 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
 483         struct snd_ctl_elem_info *uinfo);
 484 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 485 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 486         struct snd_ctl_elem_value *ucontrol);
 487 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 488         struct snd_ctl_elem_value *ucontrol);
 489 #define snd_soc_get_volsw_2r snd_soc_get_volsw
 490 #define snd_soc_put_volsw_2r snd_soc_put_volsw
 491 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 492         struct snd_ctl_elem_value *ucontrol);
 493 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 494         struct snd_ctl_elem_value *ucontrol);
 495 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
 496         struct snd_ctl_elem_info *uinfo);
 497 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 498         struct snd_ctl_elem_value *ucontrol);
 499 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 500         struct snd_ctl_elem_value *ucontrol);
 501 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
 502         struct snd_ctl_elem_info *uinfo);
 503 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 504         struct snd_ctl_elem_value *ucontrol);
 505 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
 506         struct snd_ctl_elem_value *ucontrol);
 507 int snd_soc_limit_volume(struct snd_soc_codec *codec,
 508         const char *name, int max);
 509 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
 510                        struct snd_ctl_elem_info *uinfo);
 511 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 512                       struct snd_ctl_elem_value *ucontrol);
 513 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 514                       struct snd_ctl_elem_value *ucontrol);
 515 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
 516         struct snd_ctl_elem_info *uinfo);
 517 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
 518         struct snd_ctl_elem_value *ucontrol);
 519 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 520         struct snd_ctl_elem_value *ucontrol);
 521 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 522         struct snd_ctl_elem_value *ucontrol);
 523 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 524         struct snd_ctl_elem_value *ucontrol);
 525
 526 /**
 527  * struct snd_soc_reg_access - Describes whether a given register is
 528  * readable, writable or volatile.
 529  *
 530  * @reg: the register number
 531  * @read: whether this register is readable
 532  * @write: whether this register is writable
 533  * @vol: whether this register is volatile
 534  */
 535 struct snd_soc_reg_access {
 536         u16 reg;
 537         u16 read;
 538         u16 write;
 539         u16 vol;
 540 };
 541
 542 /**
 543  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 544  *
 545  * @pin:    name of the pin to update
 546  * @mask:   bits to check for in reported jack status
 547  * @invert: if non-zero then pin is enabled when status is not reported
 548  */
 549 struct snd_soc_jack_pin {
 550         struct list_head list;
 551         const char *pin;
 552         int mask;
 553         bool invert;
 554 };
 555
 556 /**
 557  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 558  *
 559  * @min_mv: start voltage in mv
 560  * @max_mv: end voltage in mv
 561  * @jack_type: type of jack that is expected for this voltage
 562  * @debounce_time: debounce_time for jack, codec driver should wait for this
 563  *              duration before reading the adc for voltages
 564  * @:list: list container
 565  */
 566 struct snd_soc_jack_zone {
 567         unsigned int min_mv;
 568         unsigned int max_mv;
 569         unsigned int jack_type;
 570         unsigned int debounce_time;
 571         struct list_head list;
 572 };
 573
 574 /**
 575  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 576  *
 577  * @gpio:         gpio number
 578  * @name:         gpio name
 579  * @report:       value to report when jack detected
 580  * @invert:       report presence in low state
 581  * @debouce_time: debouce time in ms
 582  * @wake:         enable as wake source
 583  * @jack_status_check: callback function which overrides the detection
 584  *                     to provide more complex checks (eg, reading an
 585  *                     ADC).
 586  */
 587 #ifdef CONFIG_GPIOLIB
 588 struct snd_soc_jack_gpio {
 589         unsigned int gpio;
 590         const char *name;
 591         int report;
 592         int invert;
 593         int debounce_time;
 594         bool wake;
 595
 596         struct snd_soc_jack *jack;
 597         struct delayed_work work;
 598
 599         int (*jack_status_check)(void);
 600 };
 601 #endif
 602
 603 struct snd_soc_jack {
 604         struct mutex mutex;
 605         struct snd_jack *jack;
 606         struct snd_soc_codec *codec;
 607         struct list_head pins;
 608         int status;
 609         struct blocking_notifier_head notifier;
 610         struct list_head jack_zones;
 611 };
 612
 613 /* SoC PCM stream information */
 614 struct snd_soc_pcm_stream {
 615         const char *stream_name;
 616         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 617         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 618         unsigned int rate_min;          /* min rate */
 619         unsigned int rate_max;          /* max rate */
 620         unsigned int channels_min;      /* min channels */
 621         unsigned int channels_max;      /* max channels */
 622         unsigned int sig_bits;          /* number of bits of content */
 623 };
 624
 625 /* SoC audio ops */
 626 struct snd_soc_ops {
 627         int (*startup)(struct snd_pcm_substream *);
 628         void (*shutdown)(struct snd_pcm_substream *);
 629         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 630         int (*hw_free)(struct snd_pcm_substream *);
 631         int (*prepare)(struct snd_pcm_substream *);
 632         int (*trigger)(struct snd_pcm_substream *, int);
 633 };
 634
 635 /* SoC cache ops */
 636 struct snd_soc_cache_ops {
 637         const char *name;
 638         enum snd_soc_compress_type id;
 639         int (*init)(struct snd_soc_codec *codec);
 640         int (*exit)(struct snd_soc_codec *codec);
 641         int (*read)(struct snd_soc_codec *codec, unsigned int reg,
 642                 unsigned int *value);
 643         int (*write)(struct snd_soc_codec *codec, unsigned int reg,
 644                 unsigned int value);
 645         int (*sync)(struct snd_soc_codec *codec);
 646 };
 647
 648 /* SoC Audio Codec device */
 649 struct snd_soc_codec {
 650         const char *name;
 651         const char *name_prefix;
 652         int id;
 653         struct device *dev;
 654         const struct snd_soc_codec_driver *driver;
 655
 656         struct mutex mutex;
 657         struct snd_soc_card *card;
 658         struct list_head list;
 659         struct list_head card_list;
 660         int num_dai;
 661         enum snd_soc_compress_type compress_type;
 662         size_t reg_size;        /* reg_cache_size * reg_word_size */
 663         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 664         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 665         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 666
 667         /* runtime */
 668         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 669         unsigned int active;
 670         unsigned int cache_bypass:1; /* Suppress access to the cache */
 671         unsigned int suspended:1; /* Codec is in suspend PM state */
 672         unsigned int probed:1; /* Codec has been probed */
 673         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 674         unsigned int ac97_created:1; /* Codec has been created by SoC */
 675         unsigned int sysfs_registered:1; /* codec has been sysfs registered */
 676         unsigned int cache_init:1; /* codec cache has been initialized */
 677         unsigned int using_regmap:1; /* using regmap access */
 678         u32 cache_only;  /* Suppress writes to hardware */
 679         u32 cache_sync; /* Cache needs to be synced to hardware */
 680
 681         /* codec IO */
 682         void *control_data; /* codec control (i2c/3wire) data */
 683         enum snd_soc_control_type control_type;
 684         hw_write_t hw_write;
 685         unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 686         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 687         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 688         int (*bulk_write_raw)(struct snd_soc_codec *, unsigned int, const void *, size_t);
 689         void *reg_cache;
 690         const void *reg_def_copy;
 691         const struct snd_soc_cache_ops *cache_ops;
 692         struct mutex cache_rw_mutex;
 693         int val_bytes;
 694
 695         /* dapm */
 696         struct snd_soc_dapm_context dapm;
 697         unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 698
 699 #ifdef CONFIG_DEBUG_FS
 700         struct dentry *debugfs_codec_root;
 701         struct dentry *debugfs_reg;
 702         struct dentry *debugfs_dapm;
 703 #endif
 704 };
 705
 706 /* codec driver */
 707 struct snd_soc_codec_driver {
 708
 709         /* driver ops */
 710         int (*probe)(struct snd_soc_codec *);
 711         int (*remove)(struct snd_soc_codec *);
 712         int (*suspend)(struct snd_soc_codec *);
 713         int (*resume)(struct snd_soc_codec *);
 714
 715         /* Default control and setup, added after probe() is run */
 716         const struct snd_kcontrol_new *controls;
 717         int num_controls;
 718         const struct snd_soc_dapm_widget *dapm_widgets;
 719         int num_dapm_widgets;
 720         const struct snd_soc_dapm_route *dapm_routes;
 721         int num_dapm_routes;
 722
 723         /* codec wide operations */
 724         int (*set_sysclk)(struct snd_soc_codec *codec,
 725                           int clk_id, int source, unsigned int freq, int dir);
 726         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 727                 unsigned int freq_in, unsigned int freq_out);
 728
 729         /* codec IO */
 730         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 731         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 732         int (*display_register)(struct snd_soc_codec *, char *,
 733                                 size_t, unsigned int);
 734         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 735         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 736         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 737         unsigned int reg_cache_size;
 738         short reg_cache_step;
 739         short reg_word_size;
 740         const void *reg_cache_default;
 741         short reg_access_size;
 742         const struct snd_soc_reg_access *reg_access_default;
 743         enum snd_soc_compress_type compress_type;
 744
 745         /* codec bias level */
 746         int (*set_bias_level)(struct snd_soc_codec *,
 747                               enum snd_soc_bias_level level);
 748         bool idle_bias_off;
 749
 750         void (*seq_notifier)(struct snd_soc_dapm_context *,
 751                              enum snd_soc_dapm_type, int);
 752
 753         /* codec stream completion event */
 754         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 755
 756         bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 757
 758         /* probe ordering - for components with runtime dependencies */
 759         int probe_order;
 760         int remove_order;
 761 };
 762
 763 /* SoC platform interface */
 764 struct snd_soc_platform_driver {
 765
 766         int (*probe)(struct snd_soc_platform *);
 767         int (*remove)(struct snd_soc_platform *);
 768         int (*suspend)(struct snd_soc_dai *dai);
 769         int (*resume)(struct snd_soc_dai *dai);
 770
 771         /* pcm creation and destruction */
 772         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 773         void (*pcm_free)(struct snd_pcm *);
 774
 775         /* Default control and setup, added after probe() is run */
 776         const struct snd_kcontrol_new *controls;
 777         int num_controls;
 778         const struct snd_soc_dapm_widget *dapm_widgets;
 779         int num_dapm_widgets;
 780         const struct snd_soc_dapm_route *dapm_routes;
 781         int num_dapm_routes;
 782
 783         /*
 784          * For platform caused delay reporting.
 785          * Optional.
 786          */
 787         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 788                 struct snd_soc_dai *);
 789
 790         /* platform stream ops */
 791         struct snd_pcm_ops *ops;
 792
 793         /* platform stream completion event */
 794         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 795
 796         /* probe ordering - for components with runtime dependencies */
 797         int probe_order;
 798         int remove_order;
 799
 800         /* platform IO - used for platform DAPM */
 801         unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 802         int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 803         int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 804 };
 805
 806 struct snd_soc_platform {
 807         const char *name;
 808         int id;
 809         struct device *dev;
 810         struct snd_soc_platform_driver *driver;
 811         struct mutex mutex;
 812
 813         unsigned int suspended:1; /* platform is suspended */
 814         unsigned int probed:1;
 815
 816         struct snd_soc_card *card;
 817         struct list_head list;
 818         struct list_head card_list;
 819
 820         struct snd_soc_dapm_context dapm;
 821
 822 #ifdef CONFIG_DEBUG_FS
 823         struct dentry *debugfs_platform_root;
 824         struct dentry *debugfs_dapm;
 825 #endif
 826 };
 827
 828 struct snd_soc_dai_link {
 829         /* config - must be set by machine driver */
 830         const char *name;                       /* Codec name */
 831         const char *stream_name;                /* Stream name */
 832         /*
 833          * You MAY specify the link's CPU-side device, either by device name,
 834          * or by DT/OF node, but not both. If this information is omitted,
 835          * the CPU-side DAI is matched using .cpu_dai_name only, which hence
 836          * must be globally unique. These fields are currently typically used
 837          * only for codec to codec links, or systems using device tree.
 838          */
 839         const char *cpu_name;
 840         const struct device_node *cpu_of_node;
 841         /*
 842          * You MAY specify the DAI name of the CPU DAI. If this information is
 843          * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
 844          * only, which only works well when that device exposes a single DAI.
 845          */
 846         const char *cpu_dai_name;
 847         /*
 848          * You MUST specify the link's codec, either by device name, or by
 849          * DT/OF node, but not both.
 850          */
 851         const char *codec_name;
 852         const struct device_node *codec_of_node;
 853         /* You MUST specify the DAI name within the codec */
 854         const char *codec_dai_name;
 855         /*
 856          * You MAY specify the link's platform/PCM/DMA driver, either by
 857          * device name, or by DT/OF node, but not both. Some forms of link
 858          * do not need a platform.
 859          */
 860         const char *platform_name;
 861         const struct device_node *platform_of_node;
 862         int be_id;      /* optional ID for machine driver BE identification */
 863
 864         const struct snd_soc_pcm_stream *params;
 865
 866         unsigned int dai_fmt;           /* format to set on init */
 867
 868         enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
 869
 870         /* Keep DAI active over suspend */
 871         unsigned int ignore_suspend:1;
 872
 873         /* Symmetry requirements */
 874         unsigned int symmetric_rates:1;
 875
 876         /* Do not create a PCM for this DAI link (Backend link) */
 877         unsigned int no_pcm:1;
 878
 879         /* This DAI link can route to other DAI links at runtime (Frontend)*/
 880         unsigned int dynamic:1;
 881
 882         /* pmdown_time is ignored at stop */
 883         unsigned int ignore_pmdown_time:1;
 884
 885         /* codec/machine specific init - e.g. add machine controls */
 886         int (*init)(struct snd_soc_pcm_runtime *rtd);
 887
 888         /* optional hw_params re-writing for BE and FE sync */
 889         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 890                         struct snd_pcm_hw_params *params);
 891
 892         /* machine stream operations */
 893         struct snd_soc_ops *ops;
 894 };
 895
 896 struct snd_soc_codec_conf {
 897         const char *dev_name;
 898
 899         /*
 900          * optional map of kcontrol, widget and path name prefixes that are
 901          * associated per device
 902          */
 903         const char *name_prefix;
 904
 905         /*
 906          * set this to the desired compression type if you want to
 907          * override the one supplied in codec->driver->compress_type
 908          */
 909         enum snd_soc_compress_type compress_type;
 910 };
 911
 912 struct snd_soc_aux_dev {
 913         const char *name;               /* Codec name */
 914         const char *codec_name;         /* for multi-codec */
 915
 916         /* codec/machine specific init - e.g. add machine controls */
 917         int (*init)(struct snd_soc_dapm_context *dapm);
 918 };
 919
 920 /* SoC card */
 921 struct snd_soc_card {
 922         const char *name;
 923         const char *long_name;
 924         const char *driver_name;
 925         struct device *dev;
 926         struct snd_card *snd_card;
 927         struct module *owner;
 928
 929         struct list_head list;
 930         struct mutex mutex;
 931         struct mutex dapm_mutex;
 932
 933         bool instantiated;
 934
 935         int (*probe)(struct snd_soc_card *card);
 936         int (*late_probe)(struct snd_soc_card *card);
 937         int (*remove)(struct snd_soc_card *card);
 938
 939         /* the pre and post PM functions are used to do any PM work before and
 940          * after the codec and DAI's do any PM work. */
 941         int (*suspend_pre)(struct snd_soc_card *card);
 942         int (*suspend_post)(struct snd_soc_card *card);
 943         int (*resume_pre)(struct snd_soc_card *card);
 944         int (*resume_post)(struct snd_soc_card *card);
 945
 946         /* callbacks */
 947         int (*set_bias_level)(struct snd_soc_card *,
 948                               struct snd_soc_dapm_context *dapm,
 949                               enum snd_soc_bias_level level);
 950         int (*set_bias_level_post)(struct snd_soc_card *,
 951                                    struct snd_soc_dapm_context *dapm,
 952                                    enum snd_soc_bias_level level);
 953
 954         long pmdown_time;
 955
 956         /* CPU <--> Codec DAI links  */
 957         struct snd_soc_dai_link *dai_link;
 958         int num_links;
 959         struct snd_soc_pcm_runtime *rtd;
 960         int num_rtd;
 961
 962         /* optional codec specific configuration */
 963         struct snd_soc_codec_conf *codec_conf;
 964         int num_configs;
 965
 966         /*
 967          * optional auxiliary devices such as amplifiers or codecs with DAI
 968          * link unused
 969          */
 970         struct snd_soc_aux_dev *aux_dev;
 971         int num_aux_devs;
 972         struct snd_soc_pcm_runtime *rtd_aux;
 973         int num_aux_rtd;
 974
 975         const struct snd_kcontrol_new *controls;
 976         int num_controls;
 977
 978         /*
 979          * Card-specific routes and widgets.
 980          */
 981         const struct snd_soc_dapm_widget *dapm_widgets;
 982         int num_dapm_widgets;
 983         const struct snd_soc_dapm_route *dapm_routes;
 984         int num_dapm_routes;
 985         bool fully_routed;
 986
 987         struct work_struct deferred_resume_work;
 988
 989         /* lists of probed devices belonging to this card */
 990         struct list_head codec_dev_list;
 991         struct list_head platform_dev_list;
 992         struct list_head dai_dev_list;
 993
 994         struct list_head widgets;
 995         struct list_head paths;
 996         struct list_head dapm_list;
 997         struct list_head dapm_dirty;
 998
 999         /* Generic DAPM context for the card */
1000         struct snd_soc_dapm_context dapm;
1001         struct snd_soc_dapm_stats dapm_stats;
1002
1003 #ifdef CONFIG_DEBUG_FS
1004         struct dentry *debugfs_card_root;
1005         struct dentry *debugfs_pop_time;
1006 #endif
1007         u32 pop_time;
1008
1009         void *drvdata;
1010 };
1011
1012 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1013 struct snd_soc_pcm_runtime {
1014         struct device *dev;
1015         struct snd_soc_card *card;
1016         struct snd_soc_dai_link *dai_link;
1017         struct mutex pcm_mutex;
1018         enum snd_soc_pcm_subclass pcm_subclass;
1019         struct snd_pcm_ops ops;
1020
1021         unsigned int dev_registered:1;
1022
1023         /* Dynamic PCM BE runtime data */
1024         struct snd_soc_dpcm_runtime dpcm[2];
1025
1026         long pmdown_time;
1027
1028         /* runtime devices */
1029         struct snd_pcm *pcm;
1030         struct snd_soc_codec *codec;
1031         struct snd_soc_platform *platform;
1032         struct snd_soc_dai *codec_dai;
1033         struct snd_soc_dai *cpu_dai;
1034
1035         struct delayed_work delayed_work;
1036 #ifdef CONFIG_DEBUG_FS
1037         struct dentry *debugfs_dpcm_root;
1038         struct dentry *debugfs_dpcm_state;
1039 #endif
1040 };
1041
1042 /* mixer control */
1043 struct soc_mixer_control {
1044         int min, max, platform_max;
1045         unsigned int reg, rreg, shift, rshift, invert;
1046 };
1047
1048 struct soc_bytes {
1049         int base;
1050         int num_regs;
1051         u32 mask;
1052 };
1053
1054 /* multi register control */
1055 struct soc_mreg_control {
1056         long min, max;
1057         unsigned int regbase, regcount, nbits, invert;
1058 };
1059
1060 /* enumerated kcontrol */
1061 struct soc_enum {
1062         unsigned short reg;
1063         unsigned short reg2;
1064         unsigned char shift_l;
1065         unsigned char shift_r;
1066         unsigned int max;
1067         unsigned int mask;
1068         const char * const *texts;
1069         const unsigned int *values;
1070         void *dapm;
1071 };
1072
1073 /* codec IO */
1074 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1075 unsigned int snd_soc_write(struct snd_soc_codec *codec,
1076                            unsigned int reg, unsigned int val);
1077 unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
1078                                     unsigned int reg, const void *data, size_t len);
1079
1080 /* device driver data */
1081
1082 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1083                 void *data)
1084 {
1085         card->drvdata = data;
1086 }
1087
1088 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1089 {
1090         return card->drvdata;
1091 }
1092
1093 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1094                 void *data)
1095 {
1096         dev_set_drvdata(codec->dev, data);
1097 }
1098
1099 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1100 {
1101         return dev_get_drvdata(codec->dev);
1102 }
1103
1104 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1105                 void *data)
1106 {
1107         dev_set_drvdata(platform->dev, data);
1108 }
1109
1110 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1111 {
1112         return dev_get_drvdata(platform->dev);
1113 }
1114
1115 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1116                 void *data)
1117 {
1118         dev_set_drvdata(rtd->dev, data);
1119 }
1120
1121 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1122 {
1123         return dev_get_drvdata(rtd->dev);
1124 }
1125
1126 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1127 {
1128         INIT_LIST_HEAD(&card->dai_dev_list);
1129         INIT_LIST_HEAD(&card->codec_dev_list);
1130         INIT_LIST_HEAD(&card->platform_dev_list);
1131         INIT_LIST_HEAD(&card->widgets);
1132         INIT_LIST_HEAD(&card->paths);
1133         INIT_LIST_HEAD(&card->dapm_list);
1134 }
1135
1136 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1137 {
1138         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1139                 return 0;
1140         /*
1141          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1142          * mc->reg != mc->rreg means that the control is
1143          * stereo (bits in one register or in two registers)
1144          */
1145         return 1;
1146 }
1147
1148 int snd_soc_util_init(void);
1149 void snd_soc_util_exit(void);
1150
1151 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1152                                const char *propname);
1153 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1154                                    const char *propname);
1155
1156 #include <sound/soc-dai.h>
1157
1158 #ifdef CONFIG_DEBUG_FS
1159 extern struct dentry *snd_soc_debugfs_root;
1160 #endif
1161
1162 extern const struct dev_pm_ops snd_soc_pm_ops;
1163
1164 #endif