include/sound/soc.h

   1 /*
   2  * linux/sound/soc.h -- ALSA SoC Layer
   3  *
   4  * Author:              Liam Girdwood
   5  * Created:             Aug 11th 2005
   6  * Copyright:   Wolfson Microelectronics. PLC.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #ifndef __LINUX_SND_SOC_H
  14 #define __LINUX_SND_SOC_H
  15
  16 #include <linux/of.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/types.h>
  19 #include <linux/notifier.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/kernel.h>
  23 #include <linux/regmap.h>
  24 #include <linux/log2.h>
  25 #include <sound/core.h>
  26 #include <sound/pcm.h>
  27 #include <sound/compress_driver.h>
  28 #include <sound/control.h>
  29 #include <sound/ac97_codec.h>
  30
  31 /*
  32  * Convenience kcontrol builders
  33  */
  34 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert, xautodisable) \
  35         ((unsigned long)&(struct soc_mixer_control) \
  36         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
  37         .rshift = shift_right, .max = xmax, .platform_max = xmax, \
  38         .invert = xinvert, .autodisable = xautodisable})
  39 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \
  40         SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable)
  41 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
  42         ((unsigned long)&(struct soc_mixer_control) \
  43         {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
  44 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
  45         ((unsigned long)&(struct soc_mixer_control) \
  46         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  47         .max = xmax, .platform_max = xmax, .invert = xinvert})
  48 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \
  49         ((unsigned long)&(struct soc_mixer_control) \
  50         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  51         .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert})
  52 #define SOC_SINGLE(xname, reg, shift, max, invert) \
  53 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  54         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  55         .put = snd_soc_put_volsw, \
  56         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
  57 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
  58 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  59         .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
  60         .put = snd_soc_put_volsw_range, \
  61         .private_value = (unsigned long)&(struct soc_mixer_control) \
  62                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
  63                  .rshift = xshift,  .min = xmin, .max = xmax, \
  64                  .platform_max = xmax, .invert = xinvert} }
  65 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  66 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  67         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  68                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  69         .tlv.p = (tlv_array), \
  70         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  71         .put = snd_soc_put_volsw, \
  72         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
  73 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
  74 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  75         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  76         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  77         .tlv.p  = (tlv_array),\
  78         .info = snd_soc_info_volsw, \
  79         .get = snd_soc_get_volsw_sx,\
  80         .put = snd_soc_put_volsw_sx, \
  81         .private_value = (unsigned long)&(struct soc_mixer_control) \
  82                 {.reg = xreg, .rreg = xreg, \
  83                 .shift = xshift, .rshift = xshift, \
  84                 .max = xmax, .min = xmin} }
  85 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
  86 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  87         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  88                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  89         .tlv.p = (tlv_array), \
  90         .info = snd_soc_info_volsw_range, \
  91         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
  92         .private_value = (unsigned long)&(struct soc_mixer_control) \
  93                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
  94                  .rshift = xshift, .min = xmin, .max = xmax, \
  95                  .platform_max = xmax, .invert = xinvert} }
  96 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
  97 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  98         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
  99         .put = snd_soc_put_volsw, \
 100         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 101                                           max, invert, 0) }
 102 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
 103 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 104         .info = snd_soc_info_volsw, \
 105         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 106         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 107                                             xmax, xinvert) }
 108 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
 109                            xmax, xinvert)               \
 110 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 111         .info = snd_soc_info_volsw_range, \
 112         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 113         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 114                                             xshift, xmin, xmax, xinvert) }
 115 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \
 116 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 117         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 118                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 119         .tlv.p = (tlv_array), \
 120         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 121         .put = snd_soc_put_volsw, \
 122         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 123                                           max, invert, 0) }
 124 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
 125 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 126         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 127                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 128         .tlv.p = (tlv_array), \
 129         .info = snd_soc_info_volsw, \
 130         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 131         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 132                                             xmax, xinvert) }
 133 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
 134                                xmax, xinvert, tlv_array)                \
 135 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 136         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 137                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 138         .tlv.p = (tlv_array), \
 139         .info = snd_soc_info_volsw_range, \
 140         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 141         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 142                                             xshift, xmin, xmax, xinvert) }
 143 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
 144 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 145         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 146         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 147         .tlv.p  = (tlv_array), \
 148         .info = snd_soc_info_volsw, \
 149         .get = snd_soc_get_volsw_sx, \
 150         .put = snd_soc_put_volsw_sx, \
 151         .private_value = (unsigned long)&(struct soc_mixer_control) \
 152                 {.reg = xreg, .rreg = xrreg, \
 153                 .shift = xshift, .rshift = xshift, \
 154                 .max = xmax, .min = xmin} }
 155 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
 156 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 157         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 158                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 159         .tlv.p  = (tlv_array), \
 160         .info   = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
 161         .put    = snd_soc_put_volsw_s8, \
 162         .private_value = (unsigned long)&(struct soc_mixer_control) \
 163                 {.reg = xreg, .min = xmin, .max = xmax, \
 164                  .platform_max = xmax} }
 165 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
 166 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 167         .max = xmax, .texts = xtexts, \
 168         .mask = xmax ? roundup_pow_of_two(xmax) - 1 : 0}
 169 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
 170         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
 171 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
 172 {       .max = xmax, .texts = xtexts }
 173 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
 174 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 175         .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
 176 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
 177         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
 178 #define SOC_ENUM(xname, xenum) \
 179 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 180         .info = snd_soc_info_enum_double, \
 181         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 182         .private_value = (unsigned long)&xenum }
 183 #define SOC_VALUE_ENUM(xname, xenum) \
 184 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 185         .info = snd_soc_info_enum_double, \
 186         .get = snd_soc_get_value_enum_double, \
 187         .put = snd_soc_put_value_enum_double, \
 188         .private_value = (unsigned long)&xenum }
 189 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 190          xhandler_get, xhandler_put) \
 191 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 192         .info = snd_soc_info_volsw, \
 193         .get = xhandler_get, .put = xhandler_put, \
 194         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
 195 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
 196          xhandler_get, xhandler_put) \
 197 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 198         .info = snd_soc_info_volsw, \
 199         .get = xhandler_get, .put = xhandler_put, \
 200         .private_value = \
 201                 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert, 0) }
 202 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 203          xhandler_get, xhandler_put, tlv_array) \
 204 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 205         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 206                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 207         .tlv.p = (tlv_array), \
 208         .info = snd_soc_info_volsw, \
 209         .get = xhandler_get, .put = xhandler_put, \
 210         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
 211 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 212          xhandler_get, xhandler_put, tlv_array) \
 213 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 214         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 215                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 216         .tlv.p = (tlv_array), \
 217         .info = snd_soc_info_volsw, \
 218         .get = xhandler_get, .put = xhandler_put, \
 219         .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
 220                                           xmax, xinvert, 0) }
 221 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 222          xhandler_get, xhandler_put, tlv_array) \
 223 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 224         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 225                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 226         .tlv.p = (tlv_array), \
 227         .info = snd_soc_info_volsw, \
 228         .get = xhandler_get, .put = xhandler_put, \
 229         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 230                                             xmax, xinvert) }
 231 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 232 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 233         .info = snd_soc_info_bool_ext, \
 234         .get = xhandler_get, .put = xhandler_put, \
 235         .private_value = xdata }
 236 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 237 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 238         .info = snd_soc_info_enum_double, \
 239         .get = xhandler_get, .put = xhandler_put, \
 240         .private_value = (unsigned long)&xenum }
 241
 242 #define SND_SOC_BYTES(xname, xbase, xregs)                    \
 243 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 244         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 245         .put = snd_soc_bytes_put, .private_value =            \
 246                 ((unsigned long)&(struct soc_bytes)           \
 247                 {.base = xbase, .num_regs = xregs }) }
 248
 249 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
 250 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 251         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 252         .put = snd_soc_bytes_put, .private_value =            \
 253                 ((unsigned long)&(struct soc_bytes)           \
 254                 {.base = xbase, .num_regs = xregs,            \
 255                  .mask = xmask }) }
 256
 257 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
 258                 xmin, xmax, xinvert) \
 259 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 260         .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
 261         .put = snd_soc_put_xr_sx, \
 262         .private_value = (unsigned long)&(struct soc_mreg_control) \
 263                 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
 264                 .invert = xinvert, .min = xmin, .max = xmax} }
 265
 266 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
 267         SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
 268                 snd_soc_get_strobe, snd_soc_put_strobe)
 269
 270 /*
 271  * Simplified versions of above macros, declaring a struct and calculating
 272  * ARRAY_SIZE internally
 273  */
 274 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 275         struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 276                                                 ARRAY_SIZE(xtexts), xtexts)
 277 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 278         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 279 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 280         struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 281 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 282         struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 283                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
 284 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 285         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 286
 287 /*
 288  * Component probe and remove ordering levels for components with runtime
 289  * dependencies.
 290  */
 291 #define SND_SOC_COMP_ORDER_FIRST                -2
 292 #define SND_SOC_COMP_ORDER_EARLY                -1
 293 #define SND_SOC_COMP_ORDER_NORMAL               0
 294 #define SND_SOC_COMP_ORDER_LATE         1
 295 #define SND_SOC_COMP_ORDER_LAST         2
 296
 297 /*
 298  * Bias levels
 299  *
 300  * @ON:      Bias is fully on for audio playback and capture operations.
 301  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 302  *           stream start and stop operations.
 303  * @STANDBY: Low power standby state when no playback/capture operations are
 304  *           in progress. NOTE: The transition time between STANDBY and ON
 305  *           should be as fast as possible and no longer than 10ms.
 306  * @OFF:     Power Off. No restrictions on transition times.
 307  */
 308 enum snd_soc_bias_level {
 309         SND_SOC_BIAS_OFF = 0,
 310         SND_SOC_BIAS_STANDBY = 1,
 311         SND_SOC_BIAS_PREPARE = 2,
 312         SND_SOC_BIAS_ON = 3,
 313 };
 314
 315 struct device_node;
 316 struct snd_jack;
 317 struct snd_soc_card;
 318 struct snd_soc_pcm_stream;
 319 struct snd_soc_ops;
 320 struct snd_soc_pcm_runtime;
 321 struct snd_soc_dai;
 322 struct snd_soc_dai_driver;
 323 struct snd_soc_platform;
 324 struct snd_soc_dai_link;
 325 struct snd_soc_platform_driver;
 326 struct snd_soc_codec;
 327 struct snd_soc_codec_driver;
 328 struct snd_soc_component;
 329 struct snd_soc_component_driver;
 330 struct soc_enum;
 331 struct snd_soc_jack;
 332 struct snd_soc_jack_zone;
 333 struct snd_soc_jack_pin;
 334 #include <sound/soc-dapm.h>
 335 #include <sound/soc-dpcm.h>
 336
 337 #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_pcm_subclass {
 352         SND_SOC_PCM_CLASS_PCM   = 0,
 353         SND_SOC_PCM_CLASS_BE    = 1,
 354 };
 355
 356 enum snd_soc_card_subclass {
 357         SND_SOC_CARD_CLASS_INIT         = 0,
 358         SND_SOC_CARD_CLASS_RUNTIME      = 1,
 359 };
 360
 361 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 362                              int source, unsigned int freq, int dir);
 363 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 364                           unsigned int freq_in, unsigned int freq_out);
 365
 366 int snd_soc_register_card(struct snd_soc_card *card);
 367 int snd_soc_unregister_card(struct snd_soc_card *card);
 368 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card);
 369 int snd_soc_suspend(struct device *dev);
 370 int snd_soc_resume(struct device *dev);
 371 int snd_soc_poweroff(struct device *dev);
 372 int snd_soc_register_platform(struct device *dev,
 373                 const struct snd_soc_platform_driver *platform_drv);
 374 void snd_soc_unregister_platform(struct device *dev);
 375 int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
 376                 const struct snd_soc_platform_driver *platform_drv);
 377 void snd_soc_remove_platform(struct snd_soc_platform *platform);
 378 struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev);
 379 int snd_soc_register_codec(struct device *dev,
 380                 const struct snd_soc_codec_driver *codec_drv,
 381                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 382 void snd_soc_unregister_codec(struct device *dev);
 383 int snd_soc_register_component(struct device *dev,
 384                          const struct snd_soc_component_driver *cmpnt_drv,
 385                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 386 int devm_snd_soc_register_component(struct device *dev,
 387                          const struct snd_soc_component_driver *cmpnt_drv,
 388                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 389 void snd_soc_unregister_component(struct device *dev);
 390 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 391                                     unsigned int reg);
 392 int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
 393                                     unsigned int reg);
 394 int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
 395                                     unsigned int reg);
 396 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 397                                int addr_bits, int data_bits,
 398                                enum snd_soc_control_type control);
 399 int snd_soc_cache_sync(struct snd_soc_codec *codec);
 400 int snd_soc_cache_init(struct snd_soc_codec *codec);
 401 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 402 int snd_soc_cache_write(struct snd_soc_codec *codec,
 403                         unsigned int reg, unsigned int value);
 404 int snd_soc_cache_read(struct snd_soc_codec *codec,
 405                        unsigned int reg, unsigned int *value);
 406 int snd_soc_platform_read(struct snd_soc_platform *platform,
 407                                         unsigned int reg);
 408 int snd_soc_platform_write(struct snd_soc_platform *platform,
 409                                         unsigned int reg, unsigned int val);
 410 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 411 int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
 412
 413 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 414                 const char *dai_link, int stream);
 415 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 416                 const char *dai_link);
 417
 418 /* Utility functions to get clock rates from various things */
 419 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 420 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 421 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 422 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 423
 424 /* set runtime hw params */
 425 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 426         const struct snd_pcm_hardware *hw);
 427
 428 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 429                 int cmd, struct snd_soc_platform *platform);
 430
 431 /* Jack reporting */
 432 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 433                      struct snd_soc_jack *jack);
 434 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 435 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 436                           struct snd_soc_jack_pin *pins);
 437 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 438                                     struct notifier_block *nb);
 439 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 440                                       struct notifier_block *nb);
 441 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 442                           struct snd_soc_jack_zone *zones);
 443 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 444 #ifdef CONFIG_GPIOLIB
 445 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 446                         struct snd_soc_jack_gpio *gpios);
 447 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 448                         struct snd_soc_jack_gpio *gpios);
 449 #endif
 450
 451 /* codec register bit access */
 452 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 453                                 unsigned int mask, unsigned int value);
 454 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 455                                unsigned short reg, unsigned int mask,
 456                                unsigned int value);
 457 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 458                                 unsigned int mask, unsigned int value);
 459
 460 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 461         struct snd_ac97_bus_ops *ops, int num);
 462 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 463
 464 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
 465 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
 466                 struct platform_device *pdev);
 467
 468 /*
 469  *Controls
 470  */
 471 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 472                                   void *data, const char *long_name,
 473                                   const char *prefix);
 474 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
 475                                                const char *name);
 476 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 477         const struct snd_kcontrol_new *controls, int num_controls);
 478 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 479         const struct snd_kcontrol_new *controls, int num_controls);
 480 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 481         const struct snd_kcontrol_new *controls, int num_controls);
 482 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 483         const struct snd_kcontrol_new *controls, int num_controls);
 484 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 485         struct snd_ctl_elem_info *uinfo);
 486 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 487         struct snd_ctl_elem_value *ucontrol);
 488 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 489         struct snd_ctl_elem_value *ucontrol);
 490 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
 491         struct snd_ctl_elem_value *ucontrol);
 492 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
 493         struct snd_ctl_elem_value *ucontrol);
 494 int snd_soc_info_volsw(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_jack_pin - Describes a pin to update based on jack detection
 540  *
 541  * @pin:    name of the pin to update
 542  * @mask:   bits to check for in reported jack status
 543  * @invert: if non-zero then pin is enabled when status is not reported
 544  */
 545 struct snd_soc_jack_pin {
 546         struct list_head list;
 547         const char *pin;
 548         int mask;
 549         bool invert;
 550 };
 551
 552 /**
 553  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 554  *
 555  * @min_mv: start voltage in mv
 556  * @max_mv: end voltage in mv
 557  * @jack_type: type of jack that is expected for this voltage
 558  * @debounce_time: debounce_time for jack, codec driver should wait for this
 559  *              duration before reading the adc for voltages
 560  * @:list: list container
 561  */
 562 struct snd_soc_jack_zone {
 563         unsigned int min_mv;
 564         unsigned int max_mv;
 565         unsigned int jack_type;
 566         unsigned int debounce_time;
 567         struct list_head list;
 568 };
 569
 570 /**
 571  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 572  *
 573  * @gpio:         gpio number
 574  * @name:         gpio name
 575  * @report:       value to report when jack detected
 576  * @invert:       report presence in low state
 577  * @debouce_time: debouce time in ms
 578  * @wake:         enable as wake source
 579  * @jack_status_check: callback function which overrides the detection
 580  *                     to provide more complex checks (eg, reading an
 581  *                     ADC).
 582  */
 583 #ifdef CONFIG_GPIOLIB
 584 struct snd_soc_jack_gpio {
 585         unsigned int gpio;
 586         const char *name;
 587         int report;
 588         int invert;
 589         int debounce_time;
 590         bool wake;
 591
 592         struct snd_soc_jack *jack;
 593         struct delayed_work work;
 594
 595         int (*jack_status_check)(void);
 596 };
 597 #endif
 598
 599 struct snd_soc_jack {
 600         struct mutex mutex;
 601         struct snd_jack *jack;
 602         struct snd_soc_codec *codec;
 603         struct list_head pins;
 604         int status;
 605         struct blocking_notifier_head notifier;
 606         struct list_head jack_zones;
 607 };
 608
 609 /* SoC PCM stream information */
 610 struct snd_soc_pcm_stream {
 611         const char *stream_name;
 612         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 613         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 614         unsigned int rate_min;          /* min rate */
 615         unsigned int rate_max;          /* max rate */
 616         unsigned int channels_min;      /* min channels */
 617         unsigned int channels_max;      /* max channels */
 618         unsigned int sig_bits;          /* number of bits of content */
 619 };
 620
 621 /* SoC audio ops */
 622 struct snd_soc_ops {
 623         int (*startup)(struct snd_pcm_substream *);
 624         void (*shutdown)(struct snd_pcm_substream *);
 625         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 626         int (*hw_free)(struct snd_pcm_substream *);
 627         int (*prepare)(struct snd_pcm_substream *);
 628         int (*trigger)(struct snd_pcm_substream *, int);
 629 };
 630
 631 struct snd_soc_compr_ops {
 632         int (*startup)(struct snd_compr_stream *);
 633         void (*shutdown)(struct snd_compr_stream *);
 634         int (*set_params)(struct snd_compr_stream *);
 635         int (*trigger)(struct snd_compr_stream *);
 636 };
 637
 638 /* component interface */
 639 struct snd_soc_component_driver {
 640         const char *name;
 641
 642         /* DT */
 643         int (*of_xlate_dai_name)(struct snd_soc_component *component,
 644                                  struct of_phandle_args *args,
 645                                  const char **dai_name);
 646 };
 647
 648 struct snd_soc_component {
 649         const char *name;
 650         int id;
 651         struct device *dev;
 652         struct list_head list;
 653
 654         struct snd_soc_dai_driver *dai_drv;
 655         int num_dai;
 656
 657         const struct snd_soc_component_driver *driver;
 658 };
 659
 660 /* SoC Audio Codec device */
 661 struct snd_soc_codec {
 662         const char *name;
 663         const char *name_prefix;
 664         int id;
 665         struct device *dev;
 666         const struct snd_soc_codec_driver *driver;
 667
 668         struct mutex mutex;
 669         struct snd_soc_card *card;
 670         struct list_head list;
 671         struct list_head card_list;
 672         int num_dai;
 673         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 674         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 675         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 676
 677         /* runtime */
 678         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 679         unsigned int active;
 680         unsigned int cache_bypass:1; /* Suppress access to the cache */
 681         unsigned int suspended:1; /* Codec is in suspend PM state */
 682         unsigned int probed:1; /* Codec has been probed */
 683         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 684         unsigned int ac97_created:1; /* Codec has been created by SoC */
 685         unsigned int cache_init:1; /* codec cache has been initialized */
 686         unsigned int using_regmap:1; /* using regmap access */
 687         u32 cache_only;  /* Suppress writes to hardware */
 688         u32 cache_sync; /* Cache needs to be synced to hardware */
 689
 690         /* codec IO */
 691         void *control_data; /* codec control (i2c/3wire) data */
 692         hw_write_t hw_write;
 693         unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 694         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 695         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 696         void *reg_cache;
 697         struct mutex cache_rw_mutex;
 698         int val_bytes;
 699
 700         /* component */
 701         struct snd_soc_component component;
 702
 703         /* dapm */
 704         struct snd_soc_dapm_context dapm;
 705         unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 706
 707 #ifdef CONFIG_DEBUG_FS
 708         struct dentry *debugfs_codec_root;
 709         struct dentry *debugfs_reg;
 710 #endif
 711 };
 712
 713 /* codec driver */
 714 struct snd_soc_codec_driver {
 715
 716         /* driver ops */
 717         int (*probe)(struct snd_soc_codec *);
 718         int (*remove)(struct snd_soc_codec *);
 719         int (*suspend)(struct snd_soc_codec *);
 720         int (*resume)(struct snd_soc_codec *);
 721         struct snd_soc_component_driver component_driver;
 722
 723         /* Default control and setup, added after probe() is run */
 724         const struct snd_kcontrol_new *controls;
 725         int num_controls;
 726         const struct snd_soc_dapm_widget *dapm_widgets;
 727         int num_dapm_widgets;
 728         const struct snd_soc_dapm_route *dapm_routes;
 729         int num_dapm_routes;
 730
 731         /* codec wide operations */
 732         int (*set_sysclk)(struct snd_soc_codec *codec,
 733                           int clk_id, int source, unsigned int freq, int dir);
 734         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 735                 unsigned int freq_in, unsigned int freq_out);
 736
 737         /* codec IO */
 738         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 739         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 740         int (*display_register)(struct snd_soc_codec *, char *,
 741                                 size_t, unsigned int);
 742         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 743         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 744         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 745         unsigned int reg_cache_size;
 746         short reg_cache_step;
 747         short reg_word_size;
 748         const void *reg_cache_default;
 749
 750         /* codec bias level */
 751         int (*set_bias_level)(struct snd_soc_codec *,
 752                               enum snd_soc_bias_level level);
 753         bool idle_bias_off;
 754
 755         void (*seq_notifier)(struct snd_soc_dapm_context *,
 756                              enum snd_soc_dapm_type, int);
 757
 758         /* codec stream completion event */
 759         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 760
 761         bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 762
 763         /* probe ordering - for components with runtime dependencies */
 764         int probe_order;
 765         int remove_order;
 766 };
 767
 768 /* SoC platform interface */
 769 struct snd_soc_platform_driver {
 770
 771         int (*probe)(struct snd_soc_platform *);
 772         int (*remove)(struct snd_soc_platform *);
 773         int (*suspend)(struct snd_soc_dai *dai);
 774         int (*resume)(struct snd_soc_dai *dai);
 775
 776         /* pcm creation and destruction */
 777         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 778         void (*pcm_free)(struct snd_pcm *);
 779
 780         /* Default control and setup, added after probe() is run */
 781         const struct snd_kcontrol_new *controls;
 782         int num_controls;
 783         const struct snd_soc_dapm_widget *dapm_widgets;
 784         int num_dapm_widgets;
 785         const struct snd_soc_dapm_route *dapm_routes;
 786         int num_dapm_routes;
 787
 788         /*
 789          * For platform caused delay reporting.
 790          * Optional.
 791          */
 792         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 793                 struct snd_soc_dai *);
 794
 795         /* platform stream pcm ops */
 796         const struct snd_pcm_ops *ops;
 797
 798         /* platform stream compress ops */
 799         const struct snd_compr_ops *compr_ops;
 800
 801         /* platform stream completion event */
 802         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 803
 804         /* probe ordering - for components with runtime dependencies */
 805         int probe_order;
 806         int remove_order;
 807
 808         /* platform IO - used for platform DAPM */
 809         unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 810         int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 811         int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 812 };
 813
 814 struct snd_soc_platform {
 815         const char *name;
 816         int id;
 817         struct device *dev;
 818         const struct snd_soc_platform_driver *driver;
 819         struct mutex mutex;
 820
 821         unsigned int suspended:1; /* platform is suspended */
 822         unsigned int probed:1;
 823
 824         struct snd_soc_card *card;
 825         struct list_head list;
 826         struct list_head card_list;
 827
 828         struct snd_soc_dapm_context dapm;
 829
 830 #ifdef CONFIG_DEBUG_FS
 831         struct dentry *debugfs_platform_root;
 832 #endif
 833 };
 834
 835 struct snd_soc_dai_link {
 836         /* config - must be set by machine driver */
 837         const char *name;                       /* Codec name */
 838         const char *stream_name;                /* Stream name */
 839         /*
 840          * You MAY specify the link's CPU-side device, either by device name,
 841          * or by DT/OF node, but not both. If this information is omitted,
 842          * the CPU-side DAI is matched using .cpu_dai_name only, which hence
 843          * must be globally unique. These fields are currently typically used
 844          * only for codec to codec links, or systems using device tree.
 845          */
 846         const char *cpu_name;
 847         const struct device_node *cpu_of_node;
 848         /*
 849          * You MAY specify the DAI name of the CPU DAI. If this information is
 850          * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
 851          * only, which only works well when that device exposes a single DAI.
 852          */
 853         const char *cpu_dai_name;
 854         /*
 855          * You MUST specify the link's codec, either by device name, or by
 856          * DT/OF node, but not both.
 857          */
 858         const char *codec_name;
 859         const struct device_node *codec_of_node;
 860         /* You MUST specify the DAI name within the codec */
 861         const char *codec_dai_name;
 862         /*
 863          * You MAY specify the link's platform/PCM/DMA driver, either by
 864          * device name, or by DT/OF node, but not both. Some forms of link
 865          * do not need a platform.
 866          */
 867         const char *platform_name;
 868         const struct device_node *platform_of_node;
 869         int be_id;      /* optional ID for machine driver BE identification */
 870
 871         const struct snd_soc_pcm_stream *params;
 872
 873         unsigned int dai_fmt;           /* format to set on init */
 874
 875         enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
 876
 877         /* Keep DAI active over suspend */
 878         unsigned int ignore_suspend:1;
 879
 880         /* Symmetry requirements */
 881         unsigned int symmetric_rates:1;
 882
 883         /* Do not create a PCM for this DAI link (Backend link) */
 884         unsigned int no_pcm:1;
 885
 886         /* This DAI link can route to other DAI links at runtime (Frontend)*/
 887         unsigned int dynamic:1;
 888
 889         /* pmdown_time is ignored at stop */
 890         unsigned int ignore_pmdown_time:1;
 891
 892         /* codec/machine specific init - e.g. add machine controls */
 893         int (*init)(struct snd_soc_pcm_runtime *rtd);
 894
 895         /* optional hw_params re-writing for BE and FE sync */
 896         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 897                         struct snd_pcm_hw_params *params);
 898
 899         /* machine stream operations */
 900         const struct snd_soc_ops *ops;
 901         const struct snd_soc_compr_ops *compr_ops;
 902
 903         /* For unidirectional dai links */
 904         bool playback_only;
 905         bool capture_only;
 906 };
 907
 908 struct snd_soc_codec_conf {
 909         const char *dev_name;
 910
 911         /*
 912          * optional map of kcontrol, widget and path name prefixes that are
 913          * associated per device
 914          */
 915         const char *name_prefix;
 916 };
 917
 918 struct snd_soc_aux_dev {
 919         const char *name;               /* Codec name */
 920         const char *codec_name;         /* for multi-codec */
 921
 922         /* codec/machine specific init - e.g. add machine controls */
 923         int (*init)(struct snd_soc_dapm_context *dapm);
 924 };
 925
 926 /* SoC card */
 927 struct snd_soc_card {
 928         const char *name;
 929         const char *long_name;
 930         const char *driver_name;
 931         struct device *dev;
 932         struct snd_card *snd_card;
 933         struct module *owner;
 934
 935         struct list_head list;
 936         struct mutex mutex;
 937         struct mutex dapm_mutex;
 938
 939         bool instantiated;
 940
 941         int (*probe)(struct snd_soc_card *card);
 942         int (*late_probe)(struct snd_soc_card *card);
 943         int (*remove)(struct snd_soc_card *card);
 944
 945         /* the pre and post PM functions are used to do any PM work before and
 946          * after the codec and DAI's do any PM work. */
 947         int (*suspend_pre)(struct snd_soc_card *card);
 948         int (*suspend_post)(struct snd_soc_card *card);
 949         int (*resume_pre)(struct snd_soc_card *card);
 950         int (*resume_post)(struct snd_soc_card *card);
 951
 952         /* callbacks */
 953         int (*set_bias_level)(struct snd_soc_card *,
 954                               struct snd_soc_dapm_context *dapm,
 955                               enum snd_soc_bias_level level);
 956         int (*set_bias_level_post)(struct snd_soc_card *,
 957                                    struct snd_soc_dapm_context *dapm,
 958                                    enum snd_soc_bias_level level);
 959
 960         long pmdown_time;
 961
 962         /* CPU <--> Codec DAI links  */
 963         struct snd_soc_dai_link *dai_link;
 964         int num_links;
 965         struct snd_soc_pcm_runtime *rtd;
 966         int num_rtd;
 967
 968         /* optional codec specific configuration */
 969         struct snd_soc_codec_conf *codec_conf;
 970         int num_configs;
 971
 972         /*
 973          * optional auxiliary devices such as amplifiers or codecs with DAI
 974          * link unused
 975          */
 976         struct snd_soc_aux_dev *aux_dev;
 977         int num_aux_devs;
 978         struct snd_soc_pcm_runtime *rtd_aux;
 979         int num_aux_rtd;
 980
 981         const struct snd_kcontrol_new *controls;
 982         int num_controls;
 983
 984         /*
 985          * Card-specific routes and widgets.
 986          */
 987         const struct snd_soc_dapm_widget *dapm_widgets;
 988         int num_dapm_widgets;
 989         const struct snd_soc_dapm_route *dapm_routes;
 990         int num_dapm_routes;
 991         bool fully_routed;
 992
 993         struct work_struct deferred_resume_work;
 994
 995         /* lists of probed devices belonging to this card */
 996         struct list_head codec_dev_list;
 997         struct list_head platform_dev_list;
 998         struct list_head dai_dev_list;
 999
1000         struct list_head widgets;
1001         struct list_head paths;
1002         struct list_head dapm_list;
1003         struct list_head dapm_dirty;
1004
1005         /* Generic DAPM context for the card */
1006         struct snd_soc_dapm_context dapm;
1007         struct snd_soc_dapm_stats dapm_stats;
1008         struct snd_soc_dapm_update *update;
1009
1010 #ifdef CONFIG_DEBUG_FS
1011         struct dentry *debugfs_card_root;
1012         struct dentry *debugfs_pop_time;
1013 #endif
1014         u32 pop_time;
1015
1016         void *drvdata;
1017 };
1018
1019 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1020 struct snd_soc_pcm_runtime {
1021         struct device *dev;
1022         struct snd_soc_card *card;
1023         struct snd_soc_dai_link *dai_link;
1024         struct mutex pcm_mutex;
1025         enum snd_soc_pcm_subclass pcm_subclass;
1026         struct snd_pcm_ops ops;
1027
1028         unsigned int dev_registered:1;
1029
1030         /* Dynamic PCM BE runtime data */
1031         struct snd_soc_dpcm_runtime dpcm[2];
1032
1033         long pmdown_time;
1034         unsigned char pop_wait:1;
1035
1036         /* runtime devices */
1037         struct snd_pcm *pcm;
1038         struct snd_compr *compr;
1039         struct snd_soc_codec *codec;
1040         struct snd_soc_platform *platform;
1041         struct snd_soc_dai *codec_dai;
1042         struct snd_soc_dai *cpu_dai;
1043
1044         struct delayed_work delayed_work;
1045 #ifdef CONFIG_DEBUG_FS
1046         struct dentry *debugfs_dpcm_root;
1047         struct dentry *debugfs_dpcm_state;
1048 #endif
1049 };
1050
1051 /* mixer control */
1052 struct soc_mixer_control {
1053         int min, max, platform_max;
1054         int reg, rreg;
1055         unsigned int shift, rshift;
1056         unsigned int invert:1;
1057         unsigned int autodisable:1;
1058 };
1059
1060 struct soc_bytes {
1061         int base;
1062         int num_regs;
1063         u32 mask;
1064 };
1065
1066 /* multi register control */
1067 struct soc_mreg_control {
1068         long min, max;
1069         unsigned int regbase, regcount, nbits, invert;
1070 };
1071
1072 /* enumerated kcontrol */
1073 struct soc_enum {
1074         unsigned short reg;
1075         unsigned short reg2;
1076         unsigned char shift_l;
1077         unsigned char shift_r;
1078         unsigned int max;
1079         unsigned int mask;
1080         const char * const *texts;
1081         const unsigned int *values;
1082 };
1083
1084 /* codec IO */
1085 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1086 unsigned int snd_soc_write(struct snd_soc_codec *codec,
1087                            unsigned int reg, unsigned int val);
1088
1089 /* device driver data */
1090
1091 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1092                 void *data)
1093 {
1094         card->drvdata = data;
1095 }
1096
1097 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1098 {
1099         return card->drvdata;
1100 }
1101
1102 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1103                 void *data)
1104 {
1105         dev_set_drvdata(codec->dev, data);
1106 }
1107
1108 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1109 {
1110         return dev_get_drvdata(codec->dev);
1111 }
1112
1113 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1114                 void *data)
1115 {
1116         dev_set_drvdata(platform->dev, data);
1117 }
1118
1119 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1120 {
1121         return dev_get_drvdata(platform->dev);
1122 }
1123
1124 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1125                 void *data)
1126 {
1127         dev_set_drvdata(rtd->dev, data);
1128 }
1129
1130 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1131 {
1132         return dev_get_drvdata(rtd->dev);
1133 }
1134
1135 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1136 {
1137         INIT_LIST_HEAD(&card->dai_dev_list);
1138         INIT_LIST_HEAD(&card->codec_dev_list);
1139         INIT_LIST_HEAD(&card->platform_dev_list);
1140         INIT_LIST_HEAD(&card->widgets);
1141         INIT_LIST_HEAD(&card->paths);
1142         INIT_LIST_HEAD(&card->dapm_list);
1143 }
1144
1145 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1146 {
1147         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1148                 return 0;
1149         /*
1150          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1151          * mc->reg != mc->rreg means that the control is
1152          * stereo (bits in one register or in two registers)
1153          */
1154         return 1;
1155 }
1156
1157 int snd_soc_util_init(void);
1158 void snd_soc_util_exit(void);
1159
1160 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1161                                const char *propname);
1162 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1163                                    const char *propname);
1164 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
1165                                      const char *prefix);
1166 int snd_soc_of_get_dai_name(struct device_node *of_node,
1167                             const char **dai_name);
1168
1169 #include <sound/soc-dai.h>
1170
1171 #ifdef CONFIG_DEBUG_FS
1172 extern struct dentry *snd_soc_debugfs_root;
1173 #endif
1174
1175 extern const struct dev_pm_ops snd_soc_pm_ops;
1176
1177 #endif