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 /* 174 * Simplified versions of above macros, declaring a struct and calculating 175 * ARRAY_SIZE internally 176 */ 177 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \ 178 struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \ 179 ARRAY_SIZE(xtexts), xtexts) 180 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \ 181 SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts) 182 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \ 183 struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts) 184 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \ 185 struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \ 186 ARRAY_SIZE(xtexts), xtexts, xvalues) 187 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \ 188 SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues) 189 190 /* 191 * Bias levels 192 * 193 * @ON: Bias is fully on for audio playback and capture operations. 194 * @PREPARE: Prepare for audio operations. Called before DAPM switching for 195 * stream start and stop operations. 196 * @STANDBY: Low power standby state when no playback/capture operations are 197 * in progress. NOTE: The transition time between STANDBY and ON 198 * should be as fast as possible and no longer than 10ms. 199 * @OFF: Power Off. No restrictions on transition times. 200 */ 201 enum snd_soc_bias_level { 202 SND_SOC_BIAS_ON, 203 SND_SOC_BIAS_PREPARE, 204 SND_SOC_BIAS_STANDBY, 205 SND_SOC_BIAS_OFF, 206 }; 207 208 struct snd_jack; 209 struct snd_soc_card; 210 struct snd_soc_device; 211 struct snd_soc_pcm_stream; 212 struct snd_soc_ops; 213 struct snd_soc_dai_mode; 214 struct snd_soc_pcm_runtime; 215 struct snd_soc_dai; 216 struct snd_soc_platform; 217 struct snd_soc_dai_link; 218 struct snd_soc_codec; 219 struct soc_enum; 220 struct snd_soc_ac97_ops; 221 struct snd_soc_jack; 222 struct snd_soc_jack_pin; 223 #ifdef CONFIG_GPIOLIB 224 struct snd_soc_jack_gpio; 225 #endif 226 227 typedef int (*hw_write_t)(void *,const char* ,int); 228 229 extern struct snd_ac97_bus_ops soc_ac97_ops; 230 231 enum snd_soc_control_type { 232 SND_SOC_CUSTOM, 233 SND_SOC_I2C, 234 SND_SOC_SPI, 235 }; 236 237 int snd_soc_register_platform(struct snd_soc_platform *platform); 238 void snd_soc_unregister_platform(struct snd_soc_platform *platform); 239 int snd_soc_register_codec(struct snd_soc_codec *codec); 240 void snd_soc_unregister_codec(struct snd_soc_codec *codec); 241 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg); 242 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, 243 int addr_bits, int data_bits, 244 enum snd_soc_control_type control); 245 246 /* pcm <-> DAI connect */ 247 void snd_soc_free_pcms(struct snd_soc_device *socdev); 248 int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid); 249 250 /* Utility functions to get clock rates from various things */ 251 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots); 252 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params); 253 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots); 254 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms); 255 256 /* set runtime hw params */ 257 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, 258 const struct snd_pcm_hardware *hw); 259 260 /* Jack reporting */ 261 int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type, 262 struct snd_soc_jack *jack); 263 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask); 264 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, 265 struct snd_soc_jack_pin *pins); 266 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack, 267 struct notifier_block *nb); 268 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack, 269 struct notifier_block *nb); 270 #ifdef CONFIG_GPIOLIB 271 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 272 struct snd_soc_jack_gpio *gpios); 273 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, 274 struct snd_soc_jack_gpio *gpios); 275 #endif 276 277 /* codec register bit access */ 278 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, 279 unsigned int mask, unsigned int value); 280 int snd_soc_update_bits_locked(struct snd_soc_codec *codec, 281 unsigned short reg, unsigned int mask, 282 unsigned int value); 283 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, 284 unsigned int mask, unsigned int value); 285 286 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, 287 struct snd_ac97_bus_ops *ops, int num); 288 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec); 289 290 /* 291 *Controls 292 */ 293 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, 294 void *data, char *long_name); 295 int snd_soc_add_controls(struct snd_soc_codec *codec, 296 const struct snd_kcontrol_new *controls, int num_controls); 297 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, 298 struct snd_ctl_elem_info *uinfo); 299 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, 300 struct snd_ctl_elem_info *uinfo); 301 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, 302 struct snd_ctl_elem_value *ucontrol); 303 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, 304 struct snd_ctl_elem_value *ucontrol); 305 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, 306 struct snd_ctl_elem_value *ucontrol); 307 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, 308 struct snd_ctl_elem_value *ucontrol); 309 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, 310 struct snd_ctl_elem_info *uinfo); 311 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, 312 struct snd_ctl_elem_info *uinfo); 313 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info 314 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, 315 struct snd_ctl_elem_value *ucontrol); 316 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, 317 struct snd_ctl_elem_value *ucontrol); 318 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, 319 struct snd_ctl_elem_info *uinfo); 320 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, 321 struct snd_ctl_elem_value *ucontrol); 322 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, 323 struct snd_ctl_elem_value *ucontrol); 324 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, 325 struct snd_ctl_elem_info *uinfo); 326 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, 327 struct snd_ctl_elem_value *ucontrol); 328 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, 329 struct snd_ctl_elem_value *ucontrol); 330 int snd_soc_limit_volume(struct snd_soc_codec *codec, 331 const char *name, int max); 332 333 /** 334 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection 335 * 336 * @pin: name of the pin to update 337 * @mask: bits to check for in reported jack status 338 * @invert: if non-zero then pin is enabled when status is not reported 339 */ 340 struct snd_soc_jack_pin { 341 struct list_head list; 342 const char *pin; 343 int mask; 344 bool invert; 345 }; 346 347 /** 348 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection 349 * 350 * @gpio: gpio number 351 * @name: gpio name 352 * @report: value to report when jack detected 353 * @invert: report presence in low state 354 * @debouce_time: debouce time in ms 355 */ 356 #ifdef CONFIG_GPIOLIB 357 struct snd_soc_jack_gpio { 358 unsigned int gpio; 359 const char *name; 360 int report; 361 int invert; 362 int debounce_time; 363 struct snd_soc_jack *jack; 364 struct work_struct work; 365 366 int (*jack_status_check)(void); 367 }; 368 #endif 369 370 struct snd_soc_jack { 371 struct snd_jack *jack; 372 struct snd_soc_card *card; 373 struct list_head pins; 374 int status; 375 struct blocking_notifier_head notifier; 376 }; 377 378 /* SoC PCM stream information */ 379 struct snd_soc_pcm_stream { 380 char *stream_name; 381 u64 formats; /* SNDRV_PCM_FMTBIT_* */ 382 unsigned int rates; /* SNDRV_PCM_RATE_* */ 383 unsigned int rate_min; /* min rate */ 384 unsigned int rate_max; /* max rate */ 385 unsigned int channels_min; /* min channels */ 386 unsigned int channels_max; /* max channels */ 387 unsigned int active; /* stream is in use */ 388 void *dma_data; /* used by platform code */ 389 }; 390 391 /* SoC audio ops */ 392 struct snd_soc_ops { 393 int (*startup)(struct snd_pcm_substream *); 394 void (*shutdown)(struct snd_pcm_substream *); 395 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *); 396 int (*hw_free)(struct snd_pcm_substream *); 397 int (*prepare)(struct snd_pcm_substream *); 398 int (*trigger)(struct snd_pcm_substream *, int); 399 }; 400 401 /* SoC Audio Codec */ 402 struct snd_soc_codec { 403 char *name; 404 struct module *owner; 405 struct mutex mutex; 406 struct device *dev; 407 struct snd_soc_device *socdev; 408 409 struct list_head list; 410 411 /* callbacks */ 412 int (*set_bias_level)(struct snd_soc_codec *, 413 enum snd_soc_bias_level level); 414 415 /* runtime */ 416 struct snd_card *card; 417 struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ 418 unsigned int active; 419 unsigned int pcm_devs; 420 void *drvdata; 421 422 /* codec IO */ 423 void *control_data; /* codec control (i2c/3wire) data */ 424 unsigned int (*read)(struct snd_soc_codec *, unsigned int); 425 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); 426 int (*display_register)(struct snd_soc_codec *, char *, 427 size_t, unsigned int); 428 int (*volatile_register)(unsigned int); 429 int (*readable_register)(unsigned int); 430 hw_write_t hw_write; 431 unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int); 432 void *reg_cache; 433 short reg_cache_size; 434 short reg_cache_step; 435 436 unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */ 437 unsigned int cache_only:1; /* Suppress writes to hardware */ 438 unsigned int cache_sync:1; /* Cache needs to be synced to hardware */ 439 440 /* dapm */ 441 u32 pop_time; 442 struct list_head dapm_widgets; 443 struct list_head dapm_paths; 444 enum snd_soc_bias_level bias_level; 445 enum snd_soc_bias_level suspend_bias_level; 446 struct delayed_work delayed_work; 447 448 /* codec DAI's */ 449 struct snd_soc_dai *dai; 450 unsigned int num_dai; 451 452 #ifdef CONFIG_DEBUG_FS 453 struct dentry *debugfs_codec_root; 454 struct dentry *debugfs_reg; 455 struct dentry *debugfs_pop_time; 456 struct dentry *debugfs_dapm; 457 #endif 458 }; 459 460 /* codec device */ 461 struct snd_soc_codec_device { 462 int (*probe)(struct platform_device *pdev); 463 int (*remove)(struct platform_device *pdev); 464 int (*suspend)(struct platform_device *pdev, pm_message_t state); 465 int (*resume)(struct platform_device *pdev); 466 }; 467 468 /* SoC platform interface */ 469 struct snd_soc_platform { 470 char *name; 471 struct list_head list; 472 473 int (*probe)(struct platform_device *pdev); 474 int (*remove)(struct platform_device *pdev); 475 int (*suspend)(struct snd_soc_dai_link *dai_link); 476 int (*resume)(struct snd_soc_dai_link *dai_link); 477 478 /* pcm creation and destruction */ 479 int (*pcm_new)(struct snd_card *, struct snd_soc_dai *, 480 struct snd_pcm *); 481 void (*pcm_free)(struct snd_pcm *); 482 483 /* 484 * For platform caused delay reporting. 485 * Optional. 486 */ 487 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, 488 struct snd_soc_dai *); 489 490 /* platform stream ops */ 491 struct snd_pcm_ops *pcm_ops; 492 }; 493 494 /* SoC machine DAI configuration, glues a codec and cpu DAI together */ 495 struct snd_soc_dai_link { 496 char *name; /* Codec name */ 497 char *stream_name; /* Stream name */ 498 499 /* DAI */ 500 struct snd_soc_dai *codec_dai; 501 struct snd_soc_dai *cpu_dai; 502 503 /* machine stream operations */ 504 struct snd_soc_ops *ops; 505 506 /* codec/machine specific init - e.g. add machine controls */ 507 int (*init)(struct snd_soc_codec *codec); 508 509 /* Keep DAI active over suspend */ 510 unsigned int ignore_suspend:1; 511 512 /* Symmetry requirements */ 513 unsigned int symmetric_rates:1; 514 515 /* Symmetry data - only valid if symmetry is being enforced */ 516 unsigned int rate; 517 518 /* DAI pcm */ 519 struct snd_pcm *pcm; 520 }; 521 522 /* SoC card */ 523 struct snd_soc_card { 524 char *name; 525 struct device *dev; 526 527 struct list_head list; 528 529 int instantiated; 530 531 int (*probe)(struct platform_device *pdev); 532 int (*remove)(struct platform_device *pdev); 533 534 /* the pre and post PM functions are used to do any PM work before and 535 * after the codec and DAI's do any PM work. */ 536 int (*suspend_pre)(struct platform_device *pdev, pm_message_t state); 537 int (*suspend_post)(struct platform_device *pdev, pm_message_t state); 538 int (*resume_pre)(struct platform_device *pdev); 539 int (*resume_post)(struct platform_device *pdev); 540 541 /* callbacks */ 542 int (*set_bias_level)(struct snd_soc_card *, 543 enum snd_soc_bias_level level); 544 545 long pmdown_time; 546 547 /* CPU <--> Codec DAI links */ 548 struct snd_soc_dai_link *dai_link; 549 int num_links; 550 551 struct snd_soc_device *socdev; 552 553 struct snd_soc_codec *codec; 554 555 struct snd_soc_platform *platform; 556 struct delayed_work delayed_work; 557 struct work_struct deferred_resume_work; 558 }; 559 560 /* SoC Device - the audio subsystem */ 561 struct snd_soc_device { 562 struct device *dev; 563 struct snd_soc_card *card; 564 struct snd_soc_codec_device *codec_dev; 565 void *codec_data; 566 }; 567 568 /* runtime channel data */ 569 struct snd_soc_pcm_runtime { 570 struct snd_soc_dai_link *dai; 571 struct snd_soc_device *socdev; 572 }; 573 574 /* mixer control */ 575 struct soc_mixer_control { 576 int min, max, platform_max; 577 unsigned int reg, rreg, shift, rshift, invert; 578 }; 579 580 /* enumerated kcontrol */ 581 struct soc_enum { 582 unsigned short reg; 583 unsigned short reg2; 584 unsigned char shift_l; 585 unsigned char shift_r; 586 unsigned int max; 587 unsigned int mask; 588 const char **texts; 589 const unsigned int *values; 590 void *dapm; 591 }; 592 593 /* codec IO */ 594 static inline unsigned int snd_soc_read(struct snd_soc_codec *codec, 595 unsigned int reg) 596 { 597 return codec->read(codec, reg); 598 } 599 600 static inline unsigned int snd_soc_write(struct snd_soc_codec *codec, 601 unsigned int reg, unsigned int val) 602 { 603 return codec->write(codec, reg, val); 604 } 605 606 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec, 607 void *data) 608 { 609 codec->drvdata = data; 610 } 611 612 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec) 613 { 614 return codec->drvdata; 615 } 616 617 #include <sound/soc-dai.h> 618 619 #endif 620