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