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 <sound/core.h>
  23 #include <sound/pcm.h>
  24 #include <sound/control.h>
  25 #include <sound/ac97_codec.h>
  26
  27 /*
  28  * Convenience kcontrol builders
  29  */
  30 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
  31         ((unsigned long)&(struct soc_mixer_control) \
  32         {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \
  33         .platform_max = xmax, .invert = xinvert})
  34 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
  35         ((unsigned long)&(struct soc_mixer_control) \
  36         {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
  37 #define SOC_SINGLE(xname, reg, shift, max, invert) \
  38 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  39         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  40         .put = snd_soc_put_volsw, \
  41         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  42 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  43 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  44         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  45                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  46         .tlv.p = (tlv_array), \
  47         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  48         .put = snd_soc_put_volsw, \
  49         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  50 #define SOC_DOUBLE(xname, xreg, shift_left, shift_right, xmax, xinvert) \
  51 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  52         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
  53         .put = snd_soc_put_volsw, \
  54         .private_value = (unsigned long)&(struct soc_mixer_control) \
  55                 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
  56                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
  57 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
  58 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
  59         .info = snd_soc_info_volsw_2r, \
  60         .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
  61         .private_value = (unsigned long)&(struct soc_mixer_control) \
  62                 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
  63                 .max = xmax, .platform_max = xmax, .invert = xinvert} }
  64 #define SOC_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert, tlv_array) \
  65 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  66         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  67                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  68         .tlv.p = (tlv_array), \
  69         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
  70         .put = snd_soc_put_volsw, \
  71         .private_value = (unsigned long)&(struct soc_mixer_control) \
  72                 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
  73                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
  74 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
  75 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  76         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  77                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  78         .tlv.p = (tlv_array), \
  79         .info = snd_soc_info_volsw_2r, \
  80         .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
  81         .private_value = (unsigned long)&(struct soc_mixer_control) \
  82                 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
  83                 .max = xmax, .platform_max = xmax, .invert = xinvert} }
  84 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
  85 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
  86         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  87                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  88         .tlv.p  = (tlv_array), \
  89         .info   = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
  90         .put    = snd_soc_put_volsw_s8, \
  91         .private_value = (unsigned long)&(struct soc_mixer_control) \
  92                 {.reg = xreg, .min = xmin, .max = xmax, \
  93                  .platform_max = xmax} }
  94 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
  95 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
  96         .max = xmax, .texts = xtexts }
  97 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
  98         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
  99 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
 100 {       .max = xmax, .texts = xtexts }
 101 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
 102 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 103         .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
 104 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
 105         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
 106 #define SOC_ENUM(xname, xenum) \
 107 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 108         .info = snd_soc_info_enum_double, \
 109         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 110         .private_value = (unsigned long)&xenum }
 111 #define SOC_VALUE_ENUM(xname, xenum) \
 112 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 113         .info = snd_soc_info_enum_double, \
 114         .get = snd_soc_get_value_enum_double, \
 115         .put = snd_soc_put_value_enum_double, \
 116         .private_value = (unsigned long)&xenum }
 117 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 118          xhandler_get, xhandler_put) \
 119 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 120         .info = snd_soc_info_volsw, \
 121         .get = xhandler_get, .put = xhandler_put, \
 122         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 123 #define SOC_DOUBLE_EXT(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 124          xhandler_get, xhandler_put) \
 125 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 126         .info = snd_soc_info_volsw, \
 127         .get = xhandler_get, .put = xhandler_put, \
 128         .private_value = (unsigned long)&(struct soc_mixer_control) \
 129                 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
 130                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
 131 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 132          xhandler_get, xhandler_put, tlv_array) \
 133 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 134         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 135                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 136         .tlv.p = (tlv_array), \
 137         .info = snd_soc_info_volsw, \
 138         .get = xhandler_get, .put = xhandler_put, \
 139         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 140 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 141          xhandler_get, xhandler_put, tlv_array) \
 142 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 143         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 144                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 145         .tlv.p = (tlv_array), \
 146         .info = snd_soc_info_volsw, \
 147         .get = xhandler_get, .put = xhandler_put, \
 148         .private_value = (unsigned long)&(struct soc_mixer_control) \
 149                 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
 150                 .max = xmax, .platform_max = xmax, .invert = xinvert} }
 151 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 152          xhandler_get, xhandler_put, tlv_array) \
 153 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 154         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 155                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 156         .tlv.p = (tlv_array), \
 157         .info = snd_soc_info_volsw_2r, \
 158         .get = xhandler_get, .put = xhandler_put, \
 159         .private_value = (unsigned long)&(struct soc_mixer_control) \
 160                 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
 161                 .max = xmax, .platform_max = xmax, .invert = xinvert} }
 162 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 163 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 164         .info = snd_soc_info_bool_ext, \
 165         .get = xhandler_get, .put = xhandler_put, \
 166         .private_value = xdata }
 167 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 168 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 169         .info = snd_soc_info_enum_ext, \
 170         .get = xhandler_get, .put = xhandler_put, \
 171         .private_value = (unsigned long)&xenum }
 172
 173 #define SOC_DOUBLE_R_SX_TLV(xname, xreg_left, xreg_right, xshift,\
 174                 xmin, xmax, tlv_array) \
 175 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 176         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 177                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 178         .tlv.p = (tlv_array), \
 179         .info = snd_soc_info_volsw_2r_sx, \
 180         .get = snd_soc_get_volsw_2r_sx, \
 181         .put = snd_soc_put_volsw_2r_sx, \
 182         .private_value = (unsigned long)&(struct soc_mixer_control) \
 183                 {.reg = xreg_left, \
 184                  .rreg = xreg_right, .shift = xshift, \
 185                  .min = xmin, .max = xmax} }
 186
 187
 188 /*
 189  * Simplified versions of above macros, declaring a struct and calculating
 190  * ARRAY_SIZE internally
 191  */
 192 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 193         struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 194                                                 ARRAY_SIZE(xtexts), xtexts)
 195 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 196         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 197 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 198         struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 199 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 200         struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 201                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
 202 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 203         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 204
 205 /*
 206  * Component probe and remove ordering levels for components with runtime
 207  * dependencies.
 208  */
 209 #define SND_SOC_COMP_ORDER_FIRST                -2
 210 #define SND_SOC_COMP_ORDER_EARLY                -1
 211 #define SND_SOC_COMP_ORDER_NORMAL               0
 212 #define SND_SOC_COMP_ORDER_LATE         1
 213 #define SND_SOC_COMP_ORDER_LAST         2
 214
 215 /*
 216  * Bias levels
 217  *
 218  * @ON:      Bias is fully on for audio playback and capture operations.
 219  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 220  *           stream start and stop operations.
 221  * @STANDBY: Low power standby state when no playback/capture operations are
 222  *           in progress. NOTE: The transition time between STANDBY and ON
 223  *           should be as fast as possible and no longer than 10ms.
 224  * @OFF:     Power Off. No restrictions on transition times.
 225  */
 226 enum snd_soc_bias_level {
 227         SND_SOC_BIAS_OFF = 0,
 228         SND_SOC_BIAS_STANDBY = 1,
 229         SND_SOC_BIAS_PREPARE = 2,
 230         SND_SOC_BIAS_ON = 3,
 231 };
 232
 233 struct snd_jack;
 234 struct snd_soc_card;
 235 struct snd_soc_pcm_stream;
 236 struct snd_soc_ops;
 237 struct snd_soc_pcm_runtime;
 238 struct snd_soc_dai;
 239 struct snd_soc_dai_driver;
 240 struct snd_soc_platform;
 241 struct snd_soc_dai_link;
 242 struct snd_soc_platform_driver;
 243 struct snd_soc_codec;
 244 struct snd_soc_codec_driver;
 245 struct soc_enum;
 246 struct snd_soc_jack;
 247 struct snd_soc_jack_zone;
 248 struct snd_soc_jack_pin;
 249 struct snd_soc_cache_ops;
 250 #include <sound/soc-dapm.h>
 251
 252 #ifdef CONFIG_GPIOLIB
 253 struct snd_soc_jack_gpio;
 254 #endif
 255
 256 typedef int (*hw_write_t)(void *,const char* ,int);
 257
 258 extern struct snd_ac97_bus_ops soc_ac97_ops;
 259
 260 enum snd_soc_control_type {
 261         SND_SOC_I2C = 1,
 262         SND_SOC_SPI,
 263 };
 264
 265 enum snd_soc_compress_type {
 266         SND_SOC_FLAT_COMPRESSION = 1,
 267         SND_SOC_LZO_COMPRESSION,
 268         SND_SOC_RBTREE_COMPRESSION
 269 };
 270
 271 enum snd_soc_pcm_subclass {
 272         SND_SOC_PCM_CLASS_PCM   = 0,
 273         SND_SOC_PCM_CLASS_BE    = 1,
 274 };
 275
 276 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 277                              unsigned int freq, int dir);
 278 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 279                           unsigned int freq_in, unsigned int freq_out);
 280
 281 int snd_soc_register_card(struct snd_soc_card *card);
 282 int snd_soc_unregister_card(struct snd_soc_card *card);
 283 int snd_soc_suspend(struct device *dev);
 284 int snd_soc_resume(struct device *dev);
 285 int snd_soc_poweroff(struct device *dev);
 286 int snd_soc_register_platform(struct device *dev,
 287                 struct snd_soc_platform_driver *platform_drv);
 288 void snd_soc_unregister_platform(struct device *dev);
 289 int snd_soc_register_codec(struct device *dev,
 290                 const struct snd_soc_codec_driver *codec_drv,
 291                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 292 void snd_soc_unregister_codec(struct device *dev);
 293 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 294                                     unsigned int reg);
 295 int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
 296                                     unsigned int reg);
 297 int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
 298                                     unsigned int reg);
 299 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 300                                int addr_bits, int data_bits,
 301                                enum snd_soc_control_type control);
 302 int snd_soc_cache_sync(struct snd_soc_codec *codec);
 303 int snd_soc_cache_init(struct snd_soc_codec *codec);
 304 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 305 int snd_soc_cache_write(struct snd_soc_codec *codec,
 306                         unsigned int reg, unsigned int value);
 307 int snd_soc_cache_read(struct snd_soc_codec *codec,
 308                        unsigned int reg, unsigned int *value);
 309 int snd_soc_default_volatile_register(struct snd_soc_codec *codec,
 310                                       unsigned int reg);
 311 int snd_soc_default_readable_register(struct snd_soc_codec *codec,
 312                                       unsigned int reg);
 313 int snd_soc_default_writable_register(struct snd_soc_codec *codec,
 314                                       unsigned int reg);
 315 int snd_soc_platform_read(struct snd_soc_platform *platform,
 316                                         unsigned int reg);
 317 int snd_soc_platform_write(struct snd_soc_platform *platform,
 318                                         unsigned int reg, unsigned int val);
 319
 320 /* Utility functions to get clock rates from various things */
 321 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 322 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 323 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 324 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 325
 326 /* set runtime hw params */
 327 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 328         const struct snd_pcm_hardware *hw);
 329
 330 /* Jack reporting */
 331 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 332                      struct snd_soc_jack *jack);
 333 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 334 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 335                           struct snd_soc_jack_pin *pins);
 336 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 337                                     struct notifier_block *nb);
 338 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 339                                       struct notifier_block *nb);
 340 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 341                           struct snd_soc_jack_zone *zones);
 342 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 343 #ifdef CONFIG_GPIOLIB
 344 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 345                         struct snd_soc_jack_gpio *gpios);
 346 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 347                         struct snd_soc_jack_gpio *gpios);
 348 #endif
 349
 350 /* codec register bit access */
 351 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 352                                 unsigned int mask, unsigned int value);
 353 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 354                                unsigned short reg, unsigned int mask,
 355                                unsigned int value);
 356 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 357                                 unsigned int mask, unsigned int value);
 358
 359 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 360         struct snd_ac97_bus_ops *ops, int num);
 361 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 362
 363 /*
 364  *Controls
 365  */
 366 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 367                                   void *data, char *long_name,
 368                                   const char *prefix);
 369 int snd_soc_add_controls(struct snd_soc_codec *codec,
 370         const struct snd_kcontrol_new *controls, int num_controls);
 371 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 372         const struct snd_kcontrol_new *controls, int num_controls);
 373 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 374         struct snd_ctl_elem_info *uinfo);
 375 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
 376         struct snd_ctl_elem_info *uinfo);
 377 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 378         struct snd_ctl_elem_value *ucontrol);
 379 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 380         struct snd_ctl_elem_value *ucontrol);
 381 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
 382         struct snd_ctl_elem_value *ucontrol);
 383 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
 384         struct snd_ctl_elem_value *ucontrol);
 385 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 386         struct snd_ctl_elem_info *uinfo);
 387 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
 388         struct snd_ctl_elem_info *uinfo);
 389 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 390 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 391         struct snd_ctl_elem_value *ucontrol);
 392 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 393         struct snd_ctl_elem_value *ucontrol);
 394 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
 395         struct snd_ctl_elem_info *uinfo);
 396 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
 397         struct snd_ctl_elem_value *ucontrol);
 398 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
 399         struct snd_ctl_elem_value *ucontrol);
 400 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
 401         struct snd_ctl_elem_info *uinfo);
 402 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 403         struct snd_ctl_elem_value *ucontrol);
 404 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 405         struct snd_ctl_elem_value *ucontrol);
 406 int snd_soc_limit_volume(struct snd_soc_codec *codec,
 407         const char *name, int max);
 408 int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
 409         struct snd_ctl_elem_info *uinfo);
 410 int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
 411         struct snd_ctl_elem_value *ucontrol);
 412 int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
 413         struct snd_ctl_elem_value *ucontrol);
 414
 415 /**
 416  * struct snd_soc_reg_access - Describes whether a given register is
 417  * readable, writable or volatile.
 418  *
 419  * @reg: the register number
 420  * @read: whether this register is readable
 421  * @write: whether this register is writable
 422  * @vol: whether this register is volatile
 423  */
 424 struct snd_soc_reg_access {
 425         u16 reg;
 426         u16 read;
 427         u16 write;
 428         u16 vol;
 429 };
 430
 431 /**
 432  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 433  *
 434  * @pin:    name of the pin to update
 435  * @mask:   bits to check for in reported jack status
 436  * @invert: if non-zero then pin is enabled when status is not reported
 437  */
 438 struct snd_soc_jack_pin {
 439         struct list_head list;
 440         const char *pin;
 441         int mask;
 442         bool invert;
 443 };
 444
 445 /**
 446  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 447  *
 448  * @min_mv: start voltage in mv
 449  * @max_mv: end voltage in mv
 450  * @jack_type: type of jack that is expected for this voltage
 451  * @debounce_time: debounce_time for jack, codec driver should wait for this
 452  *              duration before reading the adc for voltages
 453  * @:list: list container
 454  */
 455 struct snd_soc_jack_zone {
 456         unsigned int min_mv;
 457         unsigned int max_mv;
 458         unsigned int jack_type;
 459         unsigned int debounce_time;
 460         struct list_head list;
 461 };
 462
 463 /**
 464  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 465  *
 466  * @gpio:         gpio number
 467  * @name:         gpio name
 468  * @report:       value to report when jack detected
 469  * @invert:       report presence in low state
 470  * @debouce_time: debouce time in ms
 471  * @wake:         enable as wake source
 472  * @jack_status_check: callback function which overrides the detection
 473  *                     to provide more complex checks (eg, reading an
 474  *                     ADC).
 475  */
 476 #ifdef CONFIG_GPIOLIB
 477 struct snd_soc_jack_gpio {
 478         unsigned int gpio;
 479         const char *name;
 480         int report;
 481         int invert;
 482         int debounce_time;
 483         bool wake;
 484
 485         struct snd_soc_jack *jack;
 486         struct delayed_work work;
 487
 488         int (*jack_status_check)(void);
 489 };
 490 #endif
 491
 492 struct snd_soc_jack {
 493         struct snd_jack *jack;
 494         struct snd_soc_codec *codec;
 495         struct list_head pins;
 496         int status;
 497         struct blocking_notifier_head notifier;
 498         struct list_head jack_zones;
 499 };
 500
 501 /* SoC PCM stream information */
 502 struct snd_soc_pcm_stream {
 503         const char *stream_name;
 504         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 505         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 506         unsigned int rate_min;          /* min rate */
 507         unsigned int rate_max;          /* max rate */
 508         unsigned int channels_min;      /* min channels */
 509         unsigned int channels_max;      /* max channels */
 510 };
 511
 512 /* SoC audio ops */
 513 struct snd_soc_ops {
 514         int (*startup)(struct snd_pcm_substream *);
 515         void (*shutdown)(struct snd_pcm_substream *);
 516         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 517         int (*hw_free)(struct snd_pcm_substream *);
 518         int (*prepare)(struct snd_pcm_substream *);
 519         int (*trigger)(struct snd_pcm_substream *, int);
 520 };
 521
 522 /* SoC cache ops */
 523 struct snd_soc_cache_ops {
 524         const char *name;
 525         enum snd_soc_compress_type id;
 526         int (*init)(struct snd_soc_codec *codec);
 527         int (*exit)(struct snd_soc_codec *codec);
 528         int (*read)(struct snd_soc_codec *codec, unsigned int reg,
 529                 unsigned int *value);
 530         int (*write)(struct snd_soc_codec *codec, unsigned int reg,
 531                 unsigned int value);
 532         int (*sync)(struct snd_soc_codec *codec);
 533 };
 534
 535 /* SoC Audio Codec device */
 536 struct snd_soc_codec {
 537         const char *name;
 538         const char *name_prefix;
 539         int id;
 540         struct device *dev;
 541         const struct snd_soc_codec_driver *driver;
 542
 543         struct mutex mutex;
 544         struct snd_soc_card *card;
 545         struct list_head list;
 546         struct list_head card_list;
 547         int num_dai;
 548         enum snd_soc_compress_type compress_type;
 549         size_t reg_size;        /* reg_cache_size * reg_word_size */
 550         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 551         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 552         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 553
 554         /* runtime */
 555         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 556         unsigned int active;
 557         unsigned int cache_bypass:1; /* Suppress access to the cache */
 558         unsigned int suspended:1; /* Codec is in suspend PM state */
 559         unsigned int probed:1; /* Codec has been probed */
 560         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 561         unsigned int ac97_created:1; /* Codec has been created by SoC */
 562         unsigned int sysfs_registered:1; /* codec has been sysfs registered */
 563         unsigned int cache_init:1; /* codec cache has been initialized */
 564         u32 cache_only;  /* Suppress writes to hardware */
 565         u32 cache_sync; /* Cache needs to be synced to hardware */
 566
 567         /* codec IO */
 568         void *control_data; /* codec control (i2c/3wire) data */
 569         enum snd_soc_control_type control_type;
 570         hw_write_t hw_write;
 571         unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 572         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 573         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 574         int (*bulk_write_raw)(struct snd_soc_codec *, unsigned int, const void *, size_t);
 575         void *reg_cache;
 576         const void *reg_def_copy;
 577         const struct snd_soc_cache_ops *cache_ops;
 578         struct mutex cache_rw_mutex;
 579
 580         /* dapm */
 581         struct snd_soc_dapm_context dapm;
 582
 583 #ifdef CONFIG_DEBUG_FS
 584         struct dentry *debugfs_codec_root;
 585         struct dentry *debugfs_reg;
 586         struct dentry *debugfs_dapm;
 587 #endif
 588 };
 589
 590 /* codec driver */
 591 struct snd_soc_codec_driver {
 592
 593         /* driver ops */
 594         int (*probe)(struct snd_soc_codec *);
 595         int (*remove)(struct snd_soc_codec *);
 596         int (*suspend)(struct snd_soc_codec *,
 597                         pm_message_t state);
 598         int (*resume)(struct snd_soc_codec *);
 599
 600         /* Default control and setup, added after probe() is run */
 601         const struct snd_kcontrol_new *controls;
 602         int num_controls;
 603         const struct snd_soc_dapm_widget *dapm_widgets;
 604         int num_dapm_widgets;
 605         const struct snd_soc_dapm_route *dapm_routes;
 606         int num_dapm_routes;
 607
 608         /* codec wide operations */
 609         int (*set_sysclk)(struct snd_soc_codec *codec,
 610                           int clk_id, unsigned int freq, int dir);
 611         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 612                 unsigned int freq_in, unsigned int freq_out);
 613
 614         /* codec IO */
 615         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 616         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 617         int (*display_register)(struct snd_soc_codec *, char *,
 618                                 size_t, unsigned int);
 619         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 620         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 621         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 622         short reg_cache_size;
 623         short reg_cache_step;
 624         short reg_word_size;
 625         const void *reg_cache_default;
 626         short reg_access_size;
 627         const struct snd_soc_reg_access *reg_access_default;
 628         enum snd_soc_compress_type compress_type;
 629
 630         /* codec bias level */
 631         int (*set_bias_level)(struct snd_soc_codec *,
 632                               enum snd_soc_bias_level level);
 633
 634         void (*seq_notifier)(struct snd_soc_dapm_context *,
 635                              enum snd_soc_dapm_type, int);
 636
 637         /* probe ordering - for components with runtime dependencies */
 638         int probe_order;
 639         int remove_order;
 640 };
 641
 642 /* SoC platform interface */
 643 struct snd_soc_platform_driver {
 644
 645         int (*probe)(struct snd_soc_platform *);
 646         int (*remove)(struct snd_soc_platform *);
 647         int (*suspend)(struct snd_soc_dai *dai);
 648         int (*resume)(struct snd_soc_dai *dai);
 649
 650         /* pcm creation and destruction */
 651         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 652         void (*pcm_free)(struct snd_pcm *);
 653
 654         /* Default control and setup, added after probe() is run */
 655         const struct snd_kcontrol_new *controls;
 656         int num_controls;
 657         const struct snd_soc_dapm_widget *dapm_widgets;
 658         int num_dapm_widgets;
 659         const struct snd_soc_dapm_route *dapm_routes;
 660         int num_dapm_routes;
 661
 662         /*
 663          * For platform caused delay reporting.
 664          * Optional.
 665          */
 666         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 667                 struct snd_soc_dai *);
 668
 669         /* platform stream ops */
 670         struct snd_pcm_ops *ops;
 671
 672         /* probe ordering - for components with runtime dependencies */
 673         int probe_order;
 674         int remove_order;
 675
 676         /* platform IO - used for platform DAPM */
 677         unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 678         int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 679 };
 680
 681 struct snd_soc_platform {
 682         const char *name;
 683         int id;
 684         struct device *dev;
 685         struct snd_soc_platform_driver *driver;
 686
 687         unsigned int suspended:1; /* platform is suspended */
 688         unsigned int probed:1;
 689
 690         struct snd_soc_card *card;
 691         struct list_head list;
 692         struct list_head card_list;
 693
 694         struct snd_soc_dapm_context dapm;
 695 };
 696
 697 struct snd_soc_dai_link {
 698         /* config - must be set by machine driver */
 699         const char *name;                       /* Codec name */
 700         const char *stream_name;                /* Stream name */
 701         const char *codec_name;         /* for multi-codec */
 702         const char *platform_name;      /* for multi-platform */
 703         const char *cpu_dai_name;
 704         const char *codec_dai_name;
 705
 706         /* Keep DAI active over suspend */
 707         unsigned int ignore_suspend:1;
 708
 709         /* Symmetry requirements */
 710         unsigned int symmetric_rates:1;
 711
 712         /* codec/machine specific init - e.g. add machine controls */
 713         int (*init)(struct snd_soc_pcm_runtime *rtd);
 714
 715         /* machine stream operations */
 716         struct snd_soc_ops *ops;
 717 };
 718
 719 struct snd_soc_codec_conf {
 720         const char *dev_name;
 721
 722         /*
 723          * optional map of kcontrol, widget and path name prefixes that are
 724          * associated per device
 725          */
 726         const char *name_prefix;
 727
 728         /*
 729          * set this to the desired compression type if you want to
 730          * override the one supplied in codec->driver->compress_type
 731          */
 732         enum snd_soc_compress_type compress_type;
 733 };
 734
 735 struct snd_soc_aux_dev {
 736         const char *name;               /* Codec name */
 737         const char *codec_name;         /* for multi-codec */
 738
 739         /* codec/machine specific init - e.g. add machine controls */
 740         int (*init)(struct snd_soc_dapm_context *dapm);
 741 };
 742
 743 /* SoC card */
 744 struct snd_soc_card {
 745         const char *name;
 746         const char *long_name;
 747         const char *driver_name;
 748         struct device *dev;
 749         struct snd_card *snd_card;
 750         struct module *owner;
 751
 752         struct list_head list;
 753         struct mutex mutex;
 754
 755         bool instantiated;
 756
 757         int (*probe)(struct snd_soc_card *card);
 758         int (*late_probe)(struct snd_soc_card *card);
 759         int (*remove)(struct snd_soc_card *card);
 760
 761         /* the pre and post PM functions are used to do any PM work before and
 762          * after the codec and DAI's do any PM work. */
 763         int (*suspend_pre)(struct snd_soc_card *card);
 764         int (*suspend_post)(struct snd_soc_card *card);
 765         int (*resume_pre)(struct snd_soc_card *card);
 766         int (*resume_post)(struct snd_soc_card *card);
 767
 768         /* callbacks */
 769         int (*set_bias_level)(struct snd_soc_card *,
 770                               struct snd_soc_dapm_context *dapm,
 771                               enum snd_soc_bias_level level);
 772         int (*set_bias_level_post)(struct snd_soc_card *,
 773                                    struct snd_soc_dapm_context *dapm,
 774                                    enum snd_soc_bias_level level);
 775
 776         long pmdown_time;
 777
 778         /* CPU <--> Codec DAI links  */
 779         struct snd_soc_dai_link *dai_link;
 780         int num_links;
 781         struct snd_soc_pcm_runtime *rtd;
 782         int num_rtd;
 783
 784         /* optional codec specific configuration */
 785         struct snd_soc_codec_conf *codec_conf;
 786         int num_configs;
 787
 788         /*
 789          * optional auxiliary devices such as amplifiers or codecs with DAI
 790          * link unused
 791          */
 792         struct snd_soc_aux_dev *aux_dev;
 793         int num_aux_devs;
 794         struct snd_soc_pcm_runtime *rtd_aux;
 795         int num_aux_rtd;
 796
 797         const struct snd_kcontrol_new *controls;
 798         int num_controls;
 799
 800         /*
 801          * Card-specific routes and widgets.
 802          */
 803         const struct snd_soc_dapm_widget *dapm_widgets;
 804         int num_dapm_widgets;
 805         const struct snd_soc_dapm_route *dapm_routes;
 806         int num_dapm_routes;
 807
 808         struct work_struct deferred_resume_work;
 809
 810         /* lists of probed devices belonging to this card */
 811         struct list_head codec_dev_list;
 812         struct list_head platform_dev_list;
 813         struct list_head dai_dev_list;
 814
 815         struct list_head widgets;
 816         struct list_head paths;
 817         struct list_head dapm_list;
 818
 819         /* Generic DAPM context for the card */
 820         struct snd_soc_dapm_context dapm;
 821
 822 #ifdef CONFIG_DEBUG_FS
 823         struct dentry *debugfs_card_root;
 824         struct dentry *debugfs_pop_time;
 825 #endif
 826         u32 pop_time;
 827
 828         void *drvdata;
 829 };
 830
 831 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
 832 struct snd_soc_pcm_runtime  {
 833         struct device dev;
 834         struct snd_soc_card *card;
 835         struct snd_soc_dai_link *dai_link;
 836         struct mutex pcm_mutex;
 837         enum snd_soc_pcm_subclass pcm_subclass;
 838         struct snd_pcm_ops ops;
 839
 840         unsigned int complete:1;
 841         unsigned int dev_registered:1;
 842
 843         /* Symmetry data - only valid if symmetry is being enforced */
 844         unsigned int rate;
 845         long pmdown_time;
 846
 847         /* runtime devices */
 848         struct snd_pcm *pcm;
 849         struct snd_soc_codec *codec;
 850         struct snd_soc_platform *platform;
 851         struct snd_soc_dai *codec_dai;
 852         struct snd_soc_dai *cpu_dai;
 853
 854         struct delayed_work delayed_work;
 855 };
 856
 857 /* mixer control */
 858 struct soc_mixer_control {
 859         int min, max, platform_max;
 860         unsigned int reg, rreg, shift, rshift, invert;
 861 };
 862
 863 /* enumerated kcontrol */
 864 struct soc_enum {
 865         unsigned short reg;
 866         unsigned short reg2;
 867         unsigned char shift_l;
 868         unsigned char shift_r;
 869         unsigned int max;
 870         unsigned int mask;
 871         const char * const *texts;
 872         const unsigned int *values;
 873         void *dapm;
 874 };
 875
 876 /* codec IO */
 877 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
 878 unsigned int snd_soc_write(struct snd_soc_codec *codec,
 879                            unsigned int reg, unsigned int val);
 880 unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
 881                                     unsigned int reg, const void *data, size_t len);
 882
 883 /* device driver data */
 884
 885 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
 886                 void *data)
 887 {
 888         card->drvdata = data;
 889 }
 890
 891 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
 892 {
 893         return card->drvdata;
 894 }
 895
 896 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
 897                 void *data)
 898 {
 899         dev_set_drvdata(codec->dev, data);
 900 }
 901
 902 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
 903 {
 904         return dev_get_drvdata(codec->dev);
 905 }
 906
 907 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
 908                 void *data)
 909 {
 910         dev_set_drvdata(platform->dev, data);
 911 }
 912
 913 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
 914 {
 915         return dev_get_drvdata(platform->dev);
 916 }
 917
 918 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
 919                 void *data)
 920 {
 921         dev_set_drvdata(&rtd->dev, data);
 922 }
 923
 924 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
 925 {
 926         return dev_get_drvdata(&rtd->dev);
 927 }
 928
 929 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
 930 {
 931         INIT_LIST_HEAD(&card->dai_dev_list);
 932         INIT_LIST_HEAD(&card->codec_dev_list);
 933         INIT_LIST_HEAD(&card->platform_dev_list);
 934         INIT_LIST_HEAD(&card->widgets);
 935         INIT_LIST_HEAD(&card->paths);
 936         INIT_LIST_HEAD(&card->dapm_list);
 937 }
 938
 939 int snd_soc_util_init(void);
 940 void snd_soc_util_exit(void);
 941
 942 #include <sound/soc-dai.h>
 943
 944 #ifdef CONFIG_DEBUG_FS
 945 extern struct dentry *snd_soc_debugfs_root;
 946 #endif
 947
 948 extern const struct dev_pm_ops snd_soc_pm_ops;
 949
 950 #endif