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/workqueue.h> 19 #include <sound/core.h> 20 #include <sound/pcm.h> 21 #include <sound/control.h> 22 #include <sound/ac97_codec.h> 23 24 #define SND_SOC_VERSION "0.13.2" 25 26 /* 27 * Convenience kcontrol builders 28 */ 29 #define SOC_SINGLE_VALUE(reg, shift, max, invert) ((reg) | ((shift) << 8) |\ 30 ((shift) << 12) | ((max) << 16) | ((invert) << 24)) 31 #define SOC_SINGLE_VALUE_EXT(reg, max, invert) ((reg) | ((max) << 16) |\ 32 ((invert) << 31)) 33 #define SOC_SINGLE(xname, reg, shift, max, invert) \ 34 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 35 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ 36 .put = snd_soc_put_volsw, \ 37 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 38 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ 39 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 40 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 41 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 42 .tlv.p = (tlv_array), \ 43 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ 44 .put = snd_soc_put_volsw, \ 45 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 46 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \ 47 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 48 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ 49 .put = snd_soc_put_volsw, \ 50 .private_value = (reg) | ((shift_left) << 8) | \ 51 ((shift_right) << 12) | ((max) << 16) | ((invert) << 24) } 52 #define SOC_DOUBLE_R(xname, reg_left, reg_right, shift, max, invert) \ 53 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 54 .info = snd_soc_info_volsw_2r, \ 55 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \ 56 .private_value = (reg_left) | ((shift) << 8) | \ 57 ((max) << 12) | ((invert) << 20) | ((reg_right) << 24) } 58 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \ 59 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 60 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 61 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 62 .tlv.p = (tlv_array), \ 63 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ 64 .put = snd_soc_put_volsw, \ 65 .private_value = (reg) | ((shift_left) << 8) | \ 66 ((shift_right) << 12) | ((max) << 16) | ((invert) << 24) } 67 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, shift, max, invert, tlv_array) \ 68 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 69 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 70 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 71 .tlv.p = (tlv_array), \ 72 .info = snd_soc_info_volsw_2r, \ 73 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \ 74 .private_value = (reg_left) | ((shift) << 8) | \ 75 ((max) << 12) | ((invert) << 20) | ((reg_right) << 24) } 76 #define SOC_DOUBLE_S8_TLV(xname, reg, min, max, tlv_array) \ 77 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 78 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 79 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 80 .tlv.p = (tlv_array), \ 81 .info = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \ 82 .put = snd_soc_put_volsw_s8, \ 83 .private_value = (reg) | (((signed char)max) << 16) | \ 84 (((signed char)min) << 24) } 85 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xtexts) \ 86 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ 87 .mask = xmask, .texts = xtexts } 88 #define SOC_ENUM_SINGLE(xreg, xshift, xmask, xtexts) \ 89 SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xtexts) 90 #define SOC_ENUM_SINGLE_EXT(xmask, xtexts) \ 91 { .mask = xmask, .texts = xtexts } 92 #define SOC_ENUM(xname, xenum) \ 93 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\ 94 .info = snd_soc_info_enum_double, \ 95 .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \ 96 .private_value = (unsigned long)&xenum } 97 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmask, xinvert,\ 98 xhandler_get, xhandler_put) \ 99 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 100 .info = snd_soc_info_volsw, \ 101 .get = xhandler_get, .put = xhandler_put, \ 102 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmask, xinvert) } 103 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmask, xinvert,\ 104 xhandler_get, xhandler_put, tlv_array) \ 105 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 106 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 107 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 108 .tlv.p = (tlv_array), \ 109 .info = snd_soc_info_volsw, \ 110 .get = xhandler_get, .put = xhandler_put, \ 111 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmask, xinvert) } 112 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \ 113 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 114 .info = snd_soc_info_bool_ext, \ 115 .get = xhandler_get, .put = xhandler_put, \ 116 .private_value = xdata } 117 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \ 118 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 119 .info = snd_soc_info_enum_ext, \ 120 .get = xhandler_get, .put = xhandler_put, \ 121 .private_value = (unsigned long)&xenum } 122 123 /* 124 * Bias levels 125 * 126 * @ON: Bias is fully on for audio playback and capture operations. 127 * @PREPARE: Prepare for audio operations. Called before DAPM switching for 128 * stream start and stop operations. 129 * @STANDBY: Low power standby state when no playback/capture operations are 130 * in progress. NOTE: The transition time between STANDBY and ON 131 * should be as fast as possible and no longer than 10ms. 132 * @OFF: Power Off. No restrictions on transition times. 133 */ 134 enum snd_soc_bias_level { 135 SND_SOC_BIAS_ON, 136 SND_SOC_BIAS_PREPARE, 137 SND_SOC_BIAS_STANDBY, 138 SND_SOC_BIAS_OFF, 139 }; 140 141 /* 142 * Digital Audio Interface (DAI) types 143 */ 144 #define SND_SOC_DAI_AC97 0x1 145 #define SND_SOC_DAI_I2S 0x2 146 #define SND_SOC_DAI_PCM 0x4 147 #define SND_SOC_DAI_AC97_BUS 0x8 /* for custom i.e. non ac97_codec.c */ 148 149 /* 150 * DAI hardware audio formats 151 */ 152 #define SND_SOC_DAIFMT_I2S 0 /* I2S mode */ 153 #define SND_SOC_DAIFMT_RIGHT_J 1 /* Right justified mode */ 154 #define SND_SOC_DAIFMT_LEFT_J 2 /* Left Justified mode */ 155 #define SND_SOC_DAIFMT_DSP_A 3 /* L data msb after FRM or LRC */ 156 #define SND_SOC_DAIFMT_DSP_B 4 /* L data msb during FRM or LRC */ 157 #define SND_SOC_DAIFMT_AC97 5 /* AC97 */ 158 159 #define SND_SOC_DAIFMT_MSB SND_SOC_DAIFMT_LEFT_J 160 #define SND_SOC_DAIFMT_LSB SND_SOC_DAIFMT_RIGHT_J 161 162 /* 163 * DAI Gating 164 */ 165 #define SND_SOC_DAIFMT_CONT (0 << 4) /* continuous clock */ 166 #define SND_SOC_DAIFMT_GATED (1 << 4) /* clock is gated when not Tx/Rx */ 167 168 /* 169 * DAI Sync 170 * Synchronous LR (Left Right) clocks and Frame signals. 171 */ 172 #define SND_SOC_DAIFMT_SYNC (0 << 5) /* Tx FRM = Rx FRM */ 173 #define SND_SOC_DAIFMT_ASYNC (1 << 5) /* Tx FRM ~ Rx FRM */ 174 175 /* 176 * TDM 177 */ 178 #define SND_SOC_DAIFMT_TDM (1 << 6) 179 180 /* 181 * DAI hardware signal inversions 182 */ 183 #define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bclk + frm */ 184 #define SND_SOC_DAIFMT_NB_IF (1 << 8) /* normal bclk + inv frm */ 185 #define SND_SOC_DAIFMT_IB_NF (2 << 8) /* invert bclk + nor frm */ 186 #define SND_SOC_DAIFMT_IB_IF (3 << 8) /* invert bclk + frm */ 187 188 /* 189 * DAI hardware clock masters 190 * This is wrt the codec, the inverse is true for the interface 191 * i.e. if the codec is clk and frm master then the interface is 192 * clk and frame slave. 193 */ 194 #define SND_SOC_DAIFMT_CBM_CFM (0 << 12) /* codec clk & frm master */ 195 #define SND_SOC_DAIFMT_CBS_CFM (1 << 12) /* codec clk slave & frm master */ 196 #define SND_SOC_DAIFMT_CBM_CFS (2 << 12) /* codec clk master & frame slave */ 197 #define SND_SOC_DAIFMT_CBS_CFS (3 << 12) /* codec clk & frm slave */ 198 199 #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f 200 #define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0 201 #define SND_SOC_DAIFMT_INV_MASK 0x0f00 202 #define SND_SOC_DAIFMT_MASTER_MASK 0xf000 203 204 205 /* 206 * Master Clock Directions 207 */ 208 #define SND_SOC_CLOCK_IN 0 209 #define SND_SOC_CLOCK_OUT 1 210 211 /* 212 * AC97 codec ID's bitmask 213 */ 214 #define SND_SOC_DAI_AC97_ID0 (1 << 0) 215 #define SND_SOC_DAI_AC97_ID1 (1 << 1) 216 #define SND_SOC_DAI_AC97_ID2 (1 << 2) 217 #define SND_SOC_DAI_AC97_ID3 (1 << 3) 218 219 struct snd_soc_device; 220 struct snd_soc_pcm_stream; 221 struct snd_soc_ops; 222 struct snd_soc_dai_mode; 223 struct snd_soc_pcm_runtime; 224 struct snd_soc_dai; 225 struct snd_soc_codec; 226 struct snd_soc_machine_config; 227 struct soc_enum; 228 struct snd_soc_ac97_ops; 229 struct snd_soc_clock_info; 230 231 typedef int (*hw_write_t)(void *,const char* ,int); 232 typedef int (*hw_read_t)(void *,char* ,int); 233 234 extern struct snd_ac97_bus_ops soc_ac97_ops; 235 236 /* pcm <-> DAI connect */ 237 void snd_soc_free_pcms(struct snd_soc_device *socdev); 238 int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid); 239 int snd_soc_register_card(struct snd_soc_device *socdev); 240 241 /* set runtime hw params */ 242 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, 243 const struct snd_pcm_hardware *hw); 244 245 /* codec IO */ 246 #define snd_soc_read(codec, reg) codec->read(codec, reg) 247 #define snd_soc_write(codec, reg, value) codec->write(codec, reg, value) 248 249 /* codec register bit access */ 250 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, 251 unsigned short mask, unsigned short value); 252 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, 253 unsigned short mask, unsigned short value); 254 255 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, 256 struct snd_ac97_bus_ops *ops, int num); 257 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec); 258 259 /* Digital Audio Interface clocking API.*/ 260 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, 261 unsigned int freq, int dir); 262 263 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, 264 int div_id, int div); 265 266 int snd_soc_dai_set_pll(struct snd_soc_dai *dai, 267 int pll_id, unsigned int freq_in, unsigned int freq_out); 268 269 /* Digital Audio interface formatting */ 270 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt); 271 272 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, 273 unsigned int mask, int slots); 274 275 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate); 276 277 /* Digital Audio Interface mute */ 278 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute); 279 280 /* 281 *Controls 282 */ 283 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, 284 void *data, char *long_name); 285 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, 286 struct snd_ctl_elem_info *uinfo); 287 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, 288 struct snd_ctl_elem_info *uinfo); 289 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, 290 struct snd_ctl_elem_value *ucontrol); 291 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, 292 struct snd_ctl_elem_value *ucontrol); 293 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, 294 struct snd_ctl_elem_info *uinfo); 295 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, 296 struct snd_ctl_elem_info *uinfo); 297 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info 298 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, 299 struct snd_ctl_elem_value *ucontrol); 300 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, 301 struct snd_ctl_elem_value *ucontrol); 302 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, 303 struct snd_ctl_elem_info *uinfo); 304 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, 305 struct snd_ctl_elem_value *ucontrol); 306 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, 307 struct snd_ctl_elem_value *ucontrol); 308 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, 309 struct snd_ctl_elem_info *uinfo); 310 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, 311 struct snd_ctl_elem_value *ucontrol); 312 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, 313 struct snd_ctl_elem_value *ucontrol); 314 315 /* SoC PCM stream information */ 316 struct snd_soc_pcm_stream { 317 char *stream_name; 318 u64 formats; /* SNDRV_PCM_FMTBIT_* */ 319 unsigned int rates; /* SNDRV_PCM_RATE_* */ 320 unsigned int rate_min; /* min rate */ 321 unsigned int rate_max; /* max rate */ 322 unsigned int channels_min; /* min channels */ 323 unsigned int channels_max; /* max channels */ 324 unsigned int active:1; /* stream is in use */ 325 }; 326 327 /* SoC audio ops */ 328 struct snd_soc_ops { 329 int (*startup)(struct snd_pcm_substream *); 330 void (*shutdown)(struct snd_pcm_substream *); 331 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *); 332 int (*hw_free)(struct snd_pcm_substream *); 333 int (*prepare)(struct snd_pcm_substream *); 334 int (*trigger)(struct snd_pcm_substream *, int); 335 }; 336 337 /* ASoC DAI ops */ 338 struct snd_soc_dai_ops { 339 /* DAI clocking configuration */ 340 int (*set_sysclk)(struct snd_soc_dai *dai, 341 int clk_id, unsigned int freq, int dir); 342 int (*set_pll)(struct snd_soc_dai *dai, 343 int pll_id, unsigned int freq_in, unsigned int freq_out); 344 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div); 345 346 /* DAI format configuration */ 347 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt); 348 int (*set_tdm_slot)(struct snd_soc_dai *dai, 349 unsigned int mask, int slots); 350 int (*set_tristate)(struct snd_soc_dai *dai, int tristate); 351 352 /* digital mute */ 353 int (*digital_mute)(struct snd_soc_dai *dai, int mute); 354 }; 355 356 /* SoC DAI (Digital Audio Interface) */ 357 struct snd_soc_dai { 358 /* DAI description */ 359 char *name; 360 unsigned int id; 361 unsigned char type; 362 363 /* DAI callbacks */ 364 int (*probe)(struct platform_device *pdev, 365 struct snd_soc_dai *dai); 366 void (*remove)(struct platform_device *pdev, 367 struct snd_soc_dai *dai); 368 int (*suspend)(struct platform_device *pdev, 369 struct snd_soc_dai *dai); 370 int (*resume)(struct platform_device *pdev, 371 struct snd_soc_dai *dai); 372 373 /* ops */ 374 struct snd_soc_ops ops; 375 struct snd_soc_dai_ops dai_ops; 376 377 /* DAI capabilities */ 378 struct snd_soc_pcm_stream capture; 379 struct snd_soc_pcm_stream playback; 380 381 /* DAI runtime info */ 382 struct snd_pcm_runtime *runtime; 383 struct snd_soc_codec *codec; 384 unsigned int active; 385 unsigned char pop_wait:1; 386 void *dma_data; 387 388 /* DAI private data */ 389 void *private_data; 390 }; 391 392 /* SoC Audio Codec */ 393 struct snd_soc_codec { 394 char *name; 395 struct module *owner; 396 struct mutex mutex; 397 398 /* callbacks */ 399 int (*set_bias_level)(struct snd_soc_codec *, 400 enum snd_soc_bias_level level); 401 402 /* runtime */ 403 struct snd_card *card; 404 struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ 405 unsigned int active; 406 unsigned int pcm_devs; 407 void *private_data; 408 409 /* codec IO */ 410 void *control_data; /* codec control (i2c/3wire) data */ 411 unsigned int (*read)(struct snd_soc_codec *, unsigned int); 412 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); 413 hw_write_t hw_write; 414 hw_read_t hw_read; 415 void *reg_cache; 416 short reg_cache_size; 417 short reg_cache_step; 418 419 /* dapm */ 420 struct list_head dapm_widgets; 421 struct list_head dapm_paths; 422 enum snd_soc_bias_level bias_level; 423 enum snd_soc_bias_level suspend_bias_level; 424 struct delayed_work delayed_work; 425 426 /* codec DAI's */ 427 struct snd_soc_dai *dai; 428 unsigned int num_dai; 429 }; 430 431 /* codec device */ 432 struct snd_soc_codec_device { 433 int (*probe)(struct platform_device *pdev); 434 int (*remove)(struct platform_device *pdev); 435 int (*suspend)(struct platform_device *pdev, pm_message_t state); 436 int (*resume)(struct platform_device *pdev); 437 }; 438 439 /* SoC platform interface */ 440 struct snd_soc_platform { 441 char *name; 442 443 int (*probe)(struct platform_device *pdev); 444 int (*remove)(struct platform_device *pdev); 445 int (*suspend)(struct platform_device *pdev, 446 struct snd_soc_dai *dai); 447 int (*resume)(struct platform_device *pdev, 448 struct snd_soc_dai *dai); 449 450 /* pcm creation and destruction */ 451 int (*pcm_new)(struct snd_card *, struct snd_soc_dai *, 452 struct snd_pcm *); 453 void (*pcm_free)(struct snd_pcm *); 454 455 /* platform stream ops */ 456 struct snd_pcm_ops *pcm_ops; 457 }; 458 459 /* SoC machine DAI configuration, glues a codec and cpu DAI together */ 460 struct snd_soc_dai_link { 461 char *name; /* Codec name */ 462 char *stream_name; /* Stream name */ 463 464 /* DAI */ 465 struct snd_soc_dai *codec_dai; 466 struct snd_soc_dai *cpu_dai; 467 468 /* machine stream operations */ 469 struct snd_soc_ops *ops; 470 471 /* codec/machine specific init - e.g. add machine controls */ 472 int (*init)(struct snd_soc_codec *codec); 473 474 /* DAI pcm */ 475 struct snd_pcm *pcm; 476 }; 477 478 /* SoC machine */ 479 struct snd_soc_machine { 480 char *name; 481 482 int (*probe)(struct platform_device *pdev); 483 int (*remove)(struct platform_device *pdev); 484 485 /* the pre and post PM functions are used to do any PM work before and 486 * after the codec and DAI's do any PM work. */ 487 int (*suspend_pre)(struct platform_device *pdev, pm_message_t state); 488 int (*suspend_post)(struct platform_device *pdev, pm_message_t state); 489 int (*resume_pre)(struct platform_device *pdev); 490 int (*resume_post)(struct platform_device *pdev); 491 492 /* callbacks */ 493 int (*set_bias_level)(struct snd_soc_machine *, 494 enum snd_soc_bias_level level); 495 496 /* CPU <--> Codec DAI links */ 497 struct snd_soc_dai_link *dai_link; 498 int num_links; 499 }; 500 501 /* SoC Device - the audio subsystem */ 502 struct snd_soc_device { 503 struct device *dev; 504 struct snd_soc_machine *machine; 505 struct snd_soc_platform *platform; 506 struct snd_soc_codec *codec; 507 struct snd_soc_codec_device *codec_dev; 508 struct delayed_work delayed_work; 509 struct work_struct deferred_resume_work; 510 void *codec_data; 511 }; 512 513 /* runtime channel data */ 514 struct snd_soc_pcm_runtime { 515 struct snd_soc_dai_link *dai; 516 struct snd_soc_device *socdev; 517 }; 518 519 /* enumerated kcontrol */ 520 struct soc_enum { 521 unsigned short reg; 522 unsigned short reg2; 523 unsigned char shift_l; 524 unsigned char shift_r; 525 unsigned int mask; 526 const char **texts; 527 void *dapm; 528 }; 529 530 #endif 531