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_device;
 226 struct snd_soc_pcm_stream;
 227 struct snd_soc_ops;
 228 struct snd_soc_dai_mode;
 229 struct snd_soc_pcm_runtime;
 230 struct snd_soc_dai;
 231 struct snd_soc_dai_driver;
 232 struct snd_soc_platform;
 233 struct snd_soc_dai_link;
 234 struct snd_soc_platform_driver;
 235 struct snd_soc_codec;
 236 struct snd_soc_codec_driver;
 237 struct soc_enum;
 238 struct snd_soc_ac97_ops;
 239 struct snd_soc_jack;
 240 struct snd_soc_jack_pin;
 241 struct snd_soc_cache_ops;
 242 #include <sound/soc-dapm.h>
 243
 244 #ifdef CONFIG_GPIOLIB
 245 struct snd_soc_jack_gpio;
 246 #endif
 247
 248 typedef int (*hw_write_t)(void *,const char* ,int);
 249
 250 extern struct snd_ac97_bus_ops soc_ac97_ops;
 251
 252 enum snd_soc_control_type {
 253         SND_SOC_CUSTOM,
 254         SND_SOC_I2C,
 255         SND_SOC_SPI,
 256 };
 257
 258 enum snd_soc_compress_type {
 259         SND_SOC_NO_COMPRESSION,
 260         SND_SOC_LZO_COMPRESSION,
 261         SND_SOC_RBTREE_COMPRESSION
 262 };
 263
 264 int snd_soc_register_platform(struct device *dev,
 265                 struct snd_soc_platform_driver *platform_drv);
 266 void snd_soc_unregister_platform(struct device *dev);
 267 int snd_soc_register_codec(struct device *dev,
 268                 struct snd_soc_codec_driver *codec_drv,
 269                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 270 void snd_soc_unregister_codec(struct device *dev);
 271 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg);
 272 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 273                                int addr_bits, int data_bits,
 274                                enum snd_soc_control_type control);
 275 int snd_soc_cache_sync(struct snd_soc_codec *codec);
 276 int snd_soc_cache_init(struct snd_soc_codec *codec);
 277 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 278 int snd_soc_cache_write(struct snd_soc_codec *codec,
 279                         unsigned int reg, unsigned int value);
 280 int snd_soc_cache_read(struct snd_soc_codec *codec,
 281                        unsigned int reg, unsigned int *value);
 282
 283 /* Utility functions to get clock rates from various things */
 284 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 285 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 286 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 287 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 288
 289 /* set runtime hw params */
 290 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 291         const struct snd_pcm_hardware *hw);
 292
 293 /* Jack reporting */
 294 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 295                      struct snd_soc_jack *jack);
 296 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 297 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 298                           struct snd_soc_jack_pin *pins);
 299 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 300                                     struct notifier_block *nb);
 301 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 302                                       struct notifier_block *nb);
 303 #ifdef CONFIG_GPIOLIB
 304 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 305                         struct snd_soc_jack_gpio *gpios);
 306 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 307                         struct snd_soc_jack_gpio *gpios);
 308 #endif
 309
 310 /* codec register bit access */
 311 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 312                                 unsigned int mask, unsigned int value);
 313 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 314                                unsigned short reg, unsigned int mask,
 315                                unsigned int value);
 316 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 317                                 unsigned int mask, unsigned int value);
 318
 319 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 320         struct snd_ac97_bus_ops *ops, int num);
 321 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 322
 323 /*
 324  *Controls
 325  */
 326 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 327         void *data, char *long_name);
 328 int snd_soc_add_controls(struct snd_soc_codec *codec,
 329         const struct snd_kcontrol_new *controls, int num_controls);
 330 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 331         struct snd_ctl_elem_info *uinfo);
 332 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
 333         struct snd_ctl_elem_info *uinfo);
 334 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 335         struct snd_ctl_elem_value *ucontrol);
 336 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 337         struct snd_ctl_elem_value *ucontrol);
 338 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
 339         struct snd_ctl_elem_value *ucontrol);
 340 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
 341         struct snd_ctl_elem_value *ucontrol);
 342 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 343         struct snd_ctl_elem_info *uinfo);
 344 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
 345         struct snd_ctl_elem_info *uinfo);
 346 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 347 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 348         struct snd_ctl_elem_value *ucontrol);
 349 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 350         struct snd_ctl_elem_value *ucontrol);
 351 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
 352         struct snd_ctl_elem_info *uinfo);
 353 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
 354         struct snd_ctl_elem_value *ucontrol);
 355 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
 356         struct snd_ctl_elem_value *ucontrol);
 357 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
 358         struct snd_ctl_elem_info *uinfo);
 359 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 360         struct snd_ctl_elem_value *ucontrol);
 361 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 362         struct snd_ctl_elem_value *ucontrol);
 363 int snd_soc_limit_volume(struct snd_soc_codec *codec,
 364         const char *name, int max);
 365 int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
 366         struct snd_ctl_elem_info *uinfo);
 367 int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
 368         struct snd_ctl_elem_value *ucontrol);
 369 int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
 370         struct snd_ctl_elem_value *ucontrol);
 371
 372 /**
 373  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 374  *
 375  * @pin:    name of the pin to update
 376  * @mask:   bits to check for in reported jack status
 377  * @invert: if non-zero then pin is enabled when status is not reported
 378  */
 379 struct snd_soc_jack_pin {
 380         struct list_head list;
 381         const char *pin;
 382         int mask;
 383         bool invert;
 384 };
 385
 386 /**
 387  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 388  *
 389  * @gpio:         gpio number
 390  * @name:         gpio name
 391  * @report:       value to report when jack detected
 392  * @invert:       report presence in low state
 393  * @debouce_time: debouce time in ms
 394  */
 395 #ifdef CONFIG_GPIOLIB
 396 struct snd_soc_jack_gpio {
 397         unsigned int gpio;
 398         const char *name;
 399         int report;
 400         int invert;
 401         int debounce_time;
 402         struct snd_soc_jack *jack;
 403         struct delayed_work work;
 404
 405         int (*jack_status_check)(void);
 406 };
 407 #endif
 408
 409 struct snd_soc_jack {
 410         struct snd_jack *jack;
 411         struct snd_soc_codec *codec;
 412         struct list_head pins;
 413         int status;
 414         struct blocking_notifier_head notifier;
 415 };
 416
 417 /* SoC PCM stream information */
 418 struct snd_soc_pcm_stream {
 419         const char *stream_name;
 420         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 421         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 422         unsigned int rate_min;          /* min rate */
 423         unsigned int rate_max;          /* max rate */
 424         unsigned int channels_min;      /* min channels */
 425         unsigned int channels_max;      /* max channels */
 426 };
 427
 428 /* SoC audio ops */
 429 struct snd_soc_ops {
 430         int (*startup)(struct snd_pcm_substream *);
 431         void (*shutdown)(struct snd_pcm_substream *);
 432         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 433         int (*hw_free)(struct snd_pcm_substream *);
 434         int (*prepare)(struct snd_pcm_substream *);
 435         int (*trigger)(struct snd_pcm_substream *, int);
 436 };
 437
 438 /* SoC cache ops */
 439 struct snd_soc_cache_ops {
 440         enum snd_soc_compress_type id;
 441         int (*init)(struct snd_soc_codec *codec);
 442         int (*exit)(struct snd_soc_codec *codec);
 443         int (*read)(struct snd_soc_codec *codec, unsigned int reg,
 444                 unsigned int *value);
 445         int (*write)(struct snd_soc_codec *codec, unsigned int reg,
 446                 unsigned int value);
 447         int (*sync)(struct snd_soc_codec *codec);
 448 };
 449
 450 /* SoC Audio Codec device */
 451 struct snd_soc_codec {
 452         const char *name;
 453         const char *name_prefix;
 454         int id;
 455         struct device *dev;
 456         struct snd_soc_codec_driver *driver;
 457
 458         struct mutex mutex;
 459         struct snd_soc_card *card;
 460         struct list_head list;
 461         struct list_head card_list;
 462         int num_dai;
 463
 464         /* runtime */
 465         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 466         unsigned int active;
 467         unsigned int cache_only:1;  /* Suppress writes to hardware */
 468         unsigned int cache_sync:1; /* Cache needs to be synced to hardware */
 469         unsigned int suspended:1; /* Codec is in suspend PM state */
 470         unsigned int probed:1; /* Codec has been probed */
 471         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 472         unsigned int ac97_created:1; /* Codec has been created by SoC */
 473         unsigned int sysfs_registered:1; /* codec has been sysfs registered */
 474
 475         /* codec IO */
 476         void *control_data; /* codec control (i2c/3wire) data */
 477         hw_write_t hw_write;
 478         unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 479         void *reg_cache;
 480         const struct snd_soc_cache_ops *cache_ops;
 481         struct mutex cache_rw_mutex;
 482
 483         /* dapm */
 484         struct snd_soc_dapm_context dapm;
 485
 486 #ifdef CONFIG_DEBUG_FS
 487         struct dentry *debugfs_codec_root;
 488         struct dentry *debugfs_reg;
 489         struct dentry *debugfs_dapm;
 490 #endif
 491 };
 492
 493 /* codec driver */
 494 struct snd_soc_codec_driver {
 495
 496         /* driver ops */
 497         int (*probe)(struct snd_soc_codec *);
 498         int (*remove)(struct snd_soc_codec *);
 499         int (*suspend)(struct snd_soc_codec *,
 500                         pm_message_t state);
 501         int (*resume)(struct snd_soc_codec *);
 502
 503         /* codec IO */
 504         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 505         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 506         int (*display_register)(struct snd_soc_codec *, char *,
 507                                 size_t, unsigned int);
 508         int (*volatile_register)(unsigned int);
 509         int (*readable_register)(unsigned int);
 510         short reg_cache_size;
 511         short reg_cache_step;
 512         short reg_word_size;
 513         const void *reg_cache_default;
 514         enum snd_soc_compress_type compress_type;
 515
 516         /* codec bias level */
 517         int (*set_bias_level)(struct snd_soc_codec *,
 518                               enum snd_soc_bias_level level);
 519 };
 520
 521 /* SoC platform interface */
 522 struct snd_soc_platform_driver {
 523
 524         int (*probe)(struct snd_soc_platform *);
 525         int (*remove)(struct snd_soc_platform *);
 526         int (*suspend)(struct snd_soc_dai *dai);
 527         int (*resume)(struct snd_soc_dai *dai);
 528
 529         /* pcm creation and destruction */
 530         int (*pcm_new)(struct snd_card *, struct snd_soc_dai *,
 531                 struct snd_pcm *);
 532         void (*pcm_free)(struct snd_pcm *);
 533
 534         /*
 535          * For platform caused delay reporting.
 536          * Optional.
 537          */
 538         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 539                 struct snd_soc_dai *);
 540
 541         /* platform stream ops */
 542         struct snd_pcm_ops *ops;
 543 };
 544
 545 struct snd_soc_platform {
 546         const char *name;
 547         int id;
 548         struct device *dev;
 549         struct snd_soc_platform_driver *driver;
 550
 551         unsigned int suspended:1; /* platform is suspended */
 552         unsigned int probed:1;
 553
 554         struct snd_soc_card *card;
 555         struct list_head list;
 556         struct list_head card_list;
 557 };
 558
 559 struct snd_soc_dai_link {
 560         /* config - must be set by machine driver */
 561         const char *name;                       /* Codec name */
 562         const char *stream_name;                /* Stream name */
 563         const char *codec_name;         /* for multi-codec */
 564         const char *platform_name;      /* for multi-platform */
 565         const char *cpu_dai_name;
 566         const char *codec_dai_name;
 567
 568         /* Keep DAI active over suspend */
 569         unsigned int ignore_suspend:1;
 570
 571         /* Symmetry requirements */
 572         unsigned int symmetric_rates:1;
 573
 574         /* codec/machine specific init - e.g. add machine controls */
 575         int (*init)(struct snd_soc_pcm_runtime *rtd);
 576
 577         /* machine stream operations */
 578         struct snd_soc_ops *ops;
 579 };
 580
 581 struct snd_soc_prefix_map {
 582         const char *dev_name;
 583         const char *name_prefix;
 584 };
 585
 586 /* SoC card */
 587 struct snd_soc_card {
 588         const char *name;
 589         struct device *dev;
 590         struct snd_card *snd_card;
 591         struct module *owner;
 592
 593         struct list_head list;
 594         struct mutex mutex;
 595
 596         bool instantiated;
 597
 598         int (*probe)(struct platform_device *pdev);
 599         int (*remove)(struct platform_device *pdev);
 600
 601         /* the pre and post PM functions are used to do any PM work before and
 602          * after the codec and DAI's do any PM work. */
 603         int (*suspend_pre)(struct platform_device *pdev, pm_message_t state);
 604         int (*suspend_post)(struct platform_device *pdev, pm_message_t state);
 605         int (*resume_pre)(struct platform_device *pdev);
 606         int (*resume_post)(struct platform_device *pdev);
 607
 608         /* callbacks */
 609         int (*set_bias_level)(struct snd_soc_card *,
 610                               enum snd_soc_bias_level level);
 611
 612         long pmdown_time;
 613
 614         /* CPU <--> Codec DAI links  */
 615         struct snd_soc_dai_link *dai_link;
 616         int num_links;
 617         struct snd_soc_pcm_runtime *rtd;
 618         int num_rtd;
 619
 620         /*
 621          * optional map of kcontrol, widget and path name prefixes that are
 622          * associated per device
 623          */
 624         struct snd_soc_prefix_map *prefix_map;
 625         int num_prefixes;
 626
 627         struct work_struct deferred_resume_work;
 628
 629         /* lists of probed devices belonging to this card */
 630         struct list_head codec_dev_list;
 631         struct list_head platform_dev_list;
 632         struct list_head dai_dev_list;
 633
 634 #ifdef CONFIG_DEBUG_FS
 635         struct dentry *debugfs_card_root;
 636         struct dentry *debugfs_pop_time;
 637 #endif
 638         u32 pop_time;
 639 };
 640
 641 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
 642 struct snd_soc_pcm_runtime  {
 643         struct device dev;
 644         struct snd_soc_card *card;
 645         struct snd_soc_dai_link *dai_link;
 646
 647         unsigned int complete:1;
 648         unsigned int dev_registered:1;
 649
 650         /* Symmetry data - only valid if symmetry is being enforced */
 651         unsigned int rate;
 652         long pmdown_time;
 653
 654         /* runtime devices */
 655         struct snd_pcm *pcm;
 656         struct snd_soc_codec *codec;
 657         struct snd_soc_platform *platform;
 658         struct snd_soc_dai *codec_dai;
 659         struct snd_soc_dai *cpu_dai;
 660
 661         struct delayed_work delayed_work;
 662 };
 663
 664 /* mixer control */
 665 struct soc_mixer_control {
 666         int min, max, platform_max;
 667         unsigned int reg, rreg, shift, rshift, invert;
 668 };
 669
 670 /* enumerated kcontrol */
 671 struct soc_enum {
 672         unsigned short reg;
 673         unsigned short reg2;
 674         unsigned char shift_l;
 675         unsigned char shift_r;
 676         unsigned int max;
 677         unsigned int mask;
 678         const char **texts;
 679         const unsigned int *values;
 680         void *dapm;
 681 };
 682
 683 /* codec IO */
 684 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
 685 unsigned int snd_soc_write(struct snd_soc_codec *codec,
 686                            unsigned int reg, unsigned int val);
 687
 688 /* device driver data */
 689
 690 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
 691                 void *data)
 692 {
 693         dev_set_drvdata(codec->dev, data);
 694 }
 695
 696 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
 697 {
 698         return dev_get_drvdata(codec->dev);
 699 }
 700
 701 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
 702                 void *data)
 703 {
 704         dev_set_drvdata(platform->dev, data);
 705 }
 706
 707 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
 708 {
 709         return dev_get_drvdata(platform->dev);
 710 }
 711
 712 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
 713                 void *data)
 714 {
 715         dev_set_drvdata(&rtd->dev, data);
 716 }
 717
 718 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
 719 {
 720         return dev_get_drvdata(&rtd->dev);
 721 }
 722
 723 #include <sound/soc-dai.h>
 724
 725 #endif