1 /* SPDX-License-Identifier: GPL-2.0 2 * 3 * linux/sound/soc-dai.h -- ALSA SoC Layer 4 * 5 * Copyright: 2005-2008 Wolfson Microelectronics. PLC. 6 * 7 * Digital Audio Interface (DAI) API. 8 */ 9 10 #ifndef __LINUX_SND_SOC_DAI_H 11 #define __LINUX_SND_SOC_DAI_H 12 13 14 #include <linux/list.h> 15 #include <sound/asoc.h> 16 17 struct snd_pcm_substream; 18 struct snd_soc_dapm_widget; 19 struct snd_compr_stream; 20 21 /* 22 * DAI hardware audio formats. 23 * 24 * Describes the physical PCM data formating and clocking. Add new formats 25 * to the end. 26 */ 27 #define SND_SOC_DAIFMT_I2S SND_SOC_DAI_FORMAT_I2S 28 #define SND_SOC_DAIFMT_RIGHT_J SND_SOC_DAI_FORMAT_RIGHT_J 29 #define SND_SOC_DAIFMT_LEFT_J SND_SOC_DAI_FORMAT_LEFT_J 30 #define SND_SOC_DAIFMT_DSP_A SND_SOC_DAI_FORMAT_DSP_A 31 #define SND_SOC_DAIFMT_DSP_B SND_SOC_DAI_FORMAT_DSP_B 32 #define SND_SOC_DAIFMT_AC97 SND_SOC_DAI_FORMAT_AC97 33 #define SND_SOC_DAIFMT_PDM SND_SOC_DAI_FORMAT_PDM 34 35 /* left and right justified also known as MSB and LSB respectively */ 36 #define SND_SOC_DAIFMT_MSB SND_SOC_DAIFMT_LEFT_J 37 #define SND_SOC_DAIFMT_LSB SND_SOC_DAIFMT_RIGHT_J 38 39 /* Describes the possible PCM format */ 40 /* 41 * use SND_SOC_DAI_FORMAT_xx as eash shift. 42 * see 43 * snd_soc_runtime_get_dai_fmt() 44 */ 45 #define SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT 0 46 #define SND_SOC_POSSIBLE_DAIFMT_FORMAT_MASK (0xFFFF << SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT) 47 #define SND_SOC_POSSIBLE_DAIFMT_I2S (1 << SND_SOC_DAI_FORMAT_I2S) 48 #define SND_SOC_POSSIBLE_DAIFMT_RIGHT_J (1 << SND_SOC_DAI_FORMAT_RIGHT_J) 49 #define SND_SOC_POSSIBLE_DAIFMT_LEFT_J (1 << SND_SOC_DAI_FORMAT_LEFT_J) 50 #define SND_SOC_POSSIBLE_DAIFMT_DSP_A (1 << SND_SOC_DAI_FORMAT_DSP_A) 51 #define SND_SOC_POSSIBLE_DAIFMT_DSP_B (1 << SND_SOC_DAI_FORMAT_DSP_B) 52 #define SND_SOC_POSSIBLE_DAIFMT_AC97 (1 << SND_SOC_DAI_FORMAT_AC97) 53 #define SND_SOC_POSSIBLE_DAIFMT_PDM (1 << SND_SOC_DAI_FORMAT_PDM) 54 55 /* 56 * DAI Clock gating. 57 * 58 * DAI bit clocks can be gated (disabled) when the DAI is not 59 * sending or receiving PCM data in a frame. This can be used to save power. 60 */ 61 #define SND_SOC_DAIFMT_CONT (1 << 4) /* continuous clock */ 62 #define SND_SOC_DAIFMT_GATED (0 << 4) /* clock is gated */ 63 64 /* Describes the possible PCM format */ 65 /* 66 * define GATED -> CONT. GATED will be selected if both are selected. 67 * see 68 * snd_soc_runtime_get_dai_fmt() 69 */ 70 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT 16 71 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_MASK (0xFFFF << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT) 72 #define SND_SOC_POSSIBLE_DAIFMT_GATED (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT) 73 #define SND_SOC_POSSIBLE_DAIFMT_CONT (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT) 74 75 /* 76 * DAI hardware signal polarity. 77 * 78 * Specifies whether the DAI can also support inverted clocks for the specified 79 * format. 80 * 81 * BCLK: 82 * - "normal" polarity means signal is available at rising edge of BCLK 83 * - "inverted" polarity means signal is available at falling edge of BCLK 84 * 85 * FSYNC "normal" polarity depends on the frame format: 86 * - I2S: frame consists of left then right channel data. Left channel starts 87 * with falling FSYNC edge, right channel starts with rising FSYNC edge. 88 * - Left/Right Justified: frame consists of left then right channel data. 89 * Left channel starts with rising FSYNC edge, right channel starts with 90 * falling FSYNC edge. 91 * - DSP A/B: Frame starts with rising FSYNC edge. 92 * - AC97: Frame starts with rising FSYNC edge. 93 * 94 * "Negative" FSYNC polarity is the one opposite of "normal" polarity. 95 */ 96 #define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bit clock + frame */ 97 #define SND_SOC_DAIFMT_NB_IF (2 << 8) /* normal BCLK + inv FRM */ 98 #define SND_SOC_DAIFMT_IB_NF (3 << 8) /* invert BCLK + nor FRM */ 99 #define SND_SOC_DAIFMT_IB_IF (4 << 8) /* invert BCLK + FRM */ 100 101 /* Describes the possible PCM format */ 102 #define SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT 32 103 #define SND_SOC_POSSIBLE_DAIFMT_INV_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT) 104 #define SND_SOC_POSSIBLE_DAIFMT_NB_NF (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT) 105 #define SND_SOC_POSSIBLE_DAIFMT_NB_IF (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT) 106 #define SND_SOC_POSSIBLE_DAIFMT_IB_NF (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT) 107 #define SND_SOC_POSSIBLE_DAIFMT_IB_IF (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT) 108 109 /* 110 * DAI hardware clock providers/consumers 111 * 112 * This is wrt the codec, the inverse is true for the interface 113 * i.e. if the codec is clk and FRM provider then the interface is 114 * clk and frame consumer. 115 */ 116 #define SND_SOC_DAIFMT_CBP_CFP (1 << 12) /* codec clk provider & frame provider */ 117 #define SND_SOC_DAIFMT_CBC_CFP (2 << 12) /* codec clk consumer & frame provider */ 118 #define SND_SOC_DAIFMT_CBP_CFC (3 << 12) /* codec clk provider & frame consumer */ 119 #define SND_SOC_DAIFMT_CBC_CFC (4 << 12) /* codec clk consumer & frame consumer */ 120 121 /* previous definitions kept for backwards-compatibility, do not use in new contributions */ 122 #define SND_SOC_DAIFMT_CBM_CFM SND_SOC_DAIFMT_CBP_CFP 123 #define SND_SOC_DAIFMT_CBS_CFM SND_SOC_DAIFMT_CBC_CFP 124 #define SND_SOC_DAIFMT_CBM_CFS SND_SOC_DAIFMT_CBP_CFC 125 #define SND_SOC_DAIFMT_CBS_CFS SND_SOC_DAIFMT_CBC_CFC 126 127 /* when passed to set_fmt directly indicate if the device is provider or consumer */ 128 #define SND_SOC_DAIFMT_BP_FP SND_SOC_DAIFMT_CBP_CFP 129 #define SND_SOC_DAIFMT_BC_FP SND_SOC_DAIFMT_CBC_CFP 130 #define SND_SOC_DAIFMT_BP_FC SND_SOC_DAIFMT_CBP_CFC 131 #define SND_SOC_DAIFMT_BC_FC SND_SOC_DAIFMT_CBC_CFC 132 133 /* Describes the possible PCM format */ 134 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT 48 135 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT) 136 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFP (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT) 137 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFP (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT) 138 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFC (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT) 139 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFC (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT) 140 141 #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f 142 #define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0 143 #define SND_SOC_DAIFMT_INV_MASK 0x0f00 144 #define SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK 0xf000 145 146 #define SND_SOC_DAIFMT_MASTER_MASK SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK 147 148 /* 149 * Master Clock Directions 150 */ 151 #define SND_SOC_CLOCK_IN 0 152 #define SND_SOC_CLOCK_OUT 1 153 154 #define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 |\ 155 SNDRV_PCM_FMTBIT_S16_LE |\ 156 SNDRV_PCM_FMTBIT_S16_BE |\ 157 SNDRV_PCM_FMTBIT_S20_3LE |\ 158 SNDRV_PCM_FMTBIT_S20_3BE |\ 159 SNDRV_PCM_FMTBIT_S20_LE |\ 160 SNDRV_PCM_FMTBIT_S20_BE |\ 161 SNDRV_PCM_FMTBIT_S24_3LE |\ 162 SNDRV_PCM_FMTBIT_S24_3BE |\ 163 SNDRV_PCM_FMTBIT_S32_LE |\ 164 SNDRV_PCM_FMTBIT_S32_BE) 165 166 struct snd_soc_dai_driver; 167 struct snd_soc_dai; 168 struct snd_ac97_bus_ops; 169 170 /* Digital Audio Interface clocking API.*/ 171 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, 172 unsigned int freq, int dir); 173 174 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, 175 int div_id, int div); 176 177 int snd_soc_dai_set_pll(struct snd_soc_dai *dai, 178 int pll_id, int source, unsigned int freq_in, unsigned int freq_out); 179 180 int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio); 181 182 /* Digital Audio interface formatting */ 183 int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd); 184 u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority); 185 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt); 186 187 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, 188 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width); 189 190 int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, 191 unsigned int tx_num, unsigned int *tx_slot, 192 unsigned int rx_num, unsigned int *rx_slot); 193 194 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate); 195 196 /* Digital Audio Interface mute */ 197 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, 198 int direction); 199 200 201 int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai, 202 unsigned int *tx_num, unsigned int *tx_slot, 203 unsigned int *rx_num, unsigned int *rx_slot); 204 205 int snd_soc_dai_is_dummy(struct snd_soc_dai *dai); 206 207 int snd_soc_dai_hw_params(struct snd_soc_dai *dai, 208 struct snd_pcm_substream *substream, 209 struct snd_pcm_hw_params *params); 210 void snd_soc_dai_hw_free(struct snd_soc_dai *dai, 211 struct snd_pcm_substream *substream, 212 int rollback); 213 int snd_soc_dai_startup(struct snd_soc_dai *dai, 214 struct snd_pcm_substream *substream); 215 void snd_soc_dai_shutdown(struct snd_soc_dai *dai, 216 struct snd_pcm_substream *substream, int rollback); 217 void snd_soc_dai_suspend(struct snd_soc_dai *dai); 218 void snd_soc_dai_resume(struct snd_soc_dai *dai); 219 int snd_soc_dai_compress_new(struct snd_soc_dai *dai, 220 struct snd_soc_pcm_runtime *rtd, int num); 221 bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream); 222 void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link); 223 void snd_soc_dai_action(struct snd_soc_dai *dai, 224 int stream, int action); 225 static inline void snd_soc_dai_activate(struct snd_soc_dai *dai, 226 int stream) 227 { 228 snd_soc_dai_action(dai, stream, 1); 229 } 230 static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai, 231 int stream) 232 { 233 snd_soc_dai_action(dai, stream, -1); 234 } 235 int snd_soc_dai_active(struct snd_soc_dai *dai); 236 237 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order); 238 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order); 239 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd); 240 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream); 241 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd, 242 int rollback); 243 int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream, 244 int cmd); 245 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream, 246 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay); 247 248 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai, 249 struct snd_compr_stream *cstream); 250 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai, 251 struct snd_compr_stream *cstream, 252 int rollback); 253 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai, 254 struct snd_compr_stream *cstream, int cmd); 255 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai, 256 struct snd_compr_stream *cstream, 257 struct snd_compr_params *params); 258 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai, 259 struct snd_compr_stream *cstream, 260 struct snd_codec *params); 261 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai, 262 struct snd_compr_stream *cstream, 263 size_t bytes); 264 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai, 265 struct snd_compr_stream *cstream, 266 struct snd_compr_tstamp *tstamp); 267 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai, 268 struct snd_compr_stream *cstream, 269 struct snd_compr_metadata *metadata); 270 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai, 271 struct snd_compr_stream *cstream, 272 struct snd_compr_metadata *metadata); 273 274 const char *snd_soc_dai_name_get(struct snd_soc_dai *dai); 275 276 struct snd_soc_dai_ops { 277 /* 278 * DAI clocking configuration, all optional. 279 * Called by soc_card drivers, normally in their hw_params. 280 */ 281 int (*set_sysclk)(struct snd_soc_dai *dai, 282 int clk_id, unsigned int freq, int dir); 283 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source, 284 unsigned int freq_in, unsigned int freq_out); 285 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div); 286 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio); 287 288 /* 289 * DAI format configuration 290 * Called by soc_card drivers, normally in their hw_params. 291 */ 292 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt); 293 int (*xlate_tdm_slot_mask)(unsigned int slots, 294 unsigned int *tx_mask, unsigned int *rx_mask); 295 int (*set_tdm_slot)(struct snd_soc_dai *dai, 296 unsigned int tx_mask, unsigned int rx_mask, 297 int slots, int slot_width); 298 int (*set_channel_map)(struct snd_soc_dai *dai, 299 unsigned int tx_num, unsigned int *tx_slot, 300 unsigned int rx_num, unsigned int *rx_slot); 301 int (*get_channel_map)(struct snd_soc_dai *dai, 302 unsigned int *tx_num, unsigned int *tx_slot, 303 unsigned int *rx_num, unsigned int *rx_slot); 304 int (*set_tristate)(struct snd_soc_dai *dai, int tristate); 305 306 int (*set_stream)(struct snd_soc_dai *dai, 307 void *stream, int direction); 308 void *(*get_stream)(struct snd_soc_dai *dai, int direction); 309 310 /* 311 * DAI digital mute - optional. 312 * Called by soc-core to minimise any pops. 313 */ 314 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream); 315 316 /* 317 * ALSA PCM audio operations - all optional. 318 * Called by soc-core during audio PCM operations. 319 */ 320 int (*startup)(struct snd_pcm_substream *, 321 struct snd_soc_dai *); 322 void (*shutdown)(struct snd_pcm_substream *, 323 struct snd_soc_dai *); 324 int (*hw_params)(struct snd_pcm_substream *, 325 struct snd_pcm_hw_params *, struct snd_soc_dai *); 326 int (*hw_free)(struct snd_pcm_substream *, 327 struct snd_soc_dai *); 328 int (*prepare)(struct snd_pcm_substream *, 329 struct snd_soc_dai *); 330 /* 331 * NOTE: Commands passed to the trigger function are not necessarily 332 * compatible with the current state of the dai. For example this 333 * sequence of commands is possible: START STOP STOP. 334 * So do not unconditionally use refcounting functions in the trigger 335 * function, e.g. clk_enable/disable. 336 */ 337 int (*trigger)(struct snd_pcm_substream *, int, 338 struct snd_soc_dai *); 339 int (*bespoke_trigger)(struct snd_pcm_substream *, int, 340 struct snd_soc_dai *); 341 /* 342 * For hardware based FIFO caused delay reporting. 343 * Optional. 344 */ 345 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, 346 struct snd_soc_dai *); 347 348 /* 349 * Format list for auto selection. 350 * Format will be increased if priority format was 351 * not selected. 352 * see 353 * snd_soc_dai_get_fmt() 354 */ 355 u64 *auto_selectable_formats; 356 int num_auto_selectable_formats; 357 358 /* bit field */ 359 unsigned int no_capture_mute:1; 360 }; 361 362 struct snd_soc_cdai_ops { 363 /* 364 * for compress ops 365 */ 366 int (*startup)(struct snd_compr_stream *, 367 struct snd_soc_dai *); 368 int (*shutdown)(struct snd_compr_stream *, 369 struct snd_soc_dai *); 370 int (*set_params)(struct snd_compr_stream *, 371 struct snd_compr_params *, struct snd_soc_dai *); 372 int (*get_params)(struct snd_compr_stream *, 373 struct snd_codec *, struct snd_soc_dai *); 374 int (*set_metadata)(struct snd_compr_stream *, 375 struct snd_compr_metadata *, struct snd_soc_dai *); 376 int (*get_metadata)(struct snd_compr_stream *, 377 struct snd_compr_metadata *, struct snd_soc_dai *); 378 int (*trigger)(struct snd_compr_stream *, int, 379 struct snd_soc_dai *); 380 int (*pointer)(struct snd_compr_stream *, 381 struct snd_compr_tstamp *, struct snd_soc_dai *); 382 int (*ack)(struct snd_compr_stream *, size_t, 383 struct snd_soc_dai *); 384 }; 385 386 /* 387 * Digital Audio Interface Driver. 388 * 389 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97 390 * operations and capabilities. Codec and platform drivers will register this 391 * structure for every DAI they have. 392 * 393 * This structure covers the clocking, formating and ALSA operations for each 394 * interface. 395 */ 396 struct snd_soc_dai_driver { 397 /* DAI description */ 398 const char *name; 399 unsigned int id; 400 unsigned int base; 401 struct snd_soc_dobj dobj; 402 struct of_phandle_args *dai_args; 403 404 /* DAI driver callbacks */ 405 int (*probe)(struct snd_soc_dai *dai); 406 int (*remove)(struct snd_soc_dai *dai); 407 /* compress dai */ 408 int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num); 409 /* Optional Callback used at pcm creation*/ 410 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd, 411 struct snd_soc_dai *dai); 412 413 /* ops */ 414 const struct snd_soc_dai_ops *ops; 415 const struct snd_soc_cdai_ops *cops; 416 417 /* DAI capabilities */ 418 struct snd_soc_pcm_stream capture; 419 struct snd_soc_pcm_stream playback; 420 unsigned int symmetric_rate:1; 421 unsigned int symmetric_channels:1; 422 unsigned int symmetric_sample_bits:1; 423 424 /* probe ordering - for components with runtime dependencies */ 425 int probe_order; 426 int remove_order; 427 }; 428 429 /* for Playback/Capture */ 430 struct snd_soc_dai_stream { 431 struct snd_soc_dapm_widget *widget; 432 433 unsigned int active; /* usage count */ 434 unsigned int tdm_mask; /* CODEC TDM slot masks and params (for fixup) */ 435 436 void *dma_data; /* DAI DMA data */ 437 }; 438 439 /* 440 * Digital Audio Interface runtime data. 441 * 442 * Holds runtime data for a DAI. 443 */ 444 struct snd_soc_dai { 445 const char *name; 446 int id; 447 struct device *dev; 448 449 /* driver ops */ 450 struct snd_soc_dai_driver *driver; 451 452 /* DAI runtime info */ 453 struct snd_soc_dai_stream stream[SNDRV_PCM_STREAM_LAST + 1]; 454 455 /* Symmetry data - only valid if symmetry is being enforced */ 456 unsigned int rate; 457 unsigned int channels; 458 unsigned int sample_bits; 459 460 /* parent platform/codec */ 461 struct snd_soc_component *component; 462 463 struct list_head list; 464 465 /* function mark */ 466 struct snd_pcm_substream *mark_startup; 467 struct snd_pcm_substream *mark_hw_params; 468 struct snd_pcm_substream *mark_trigger; 469 struct snd_compr_stream *mark_compr_startup; 470 471 /* bit field */ 472 unsigned int probed:1; 473 }; 474 475 static inline struct snd_soc_pcm_stream * 476 snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream) 477 { 478 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? 479 &dai->driver->playback : &dai->driver->capture; 480 } 481 482 #define snd_soc_dai_get_widget_playback(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK) 483 #define snd_soc_dai_get_widget_capture(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE) 484 static inline 485 struct snd_soc_dapm_widget *snd_soc_dai_get_widget(struct snd_soc_dai *dai, int stream) 486 { 487 return dai->stream[stream].widget; 488 } 489 490 #define snd_soc_dai_set_widget_playback(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_PLAYBACK, widget) 491 #define snd_soc_dai_set_widget_capture(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_CAPTURE, widget) 492 static inline 493 void snd_soc_dai_set_widget(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_widget *widget) 494 { 495 dai->stream[stream].widget = widget; 496 } 497 498 #define snd_soc_dai_dma_data_get_playback(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_PLAYBACK) 499 #define snd_soc_dai_dma_data_get_capture(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_CAPTURE) 500 #define snd_soc_dai_get_dma_data(dai, ss) snd_soc_dai_dma_data_get(dai, ss->stream) 501 static inline void *snd_soc_dai_dma_data_get(const struct snd_soc_dai *dai, int stream) 502 { 503 return dai->stream[stream].dma_data; 504 } 505 506 #define snd_soc_dai_dma_data_set_playback(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_PLAYBACK, data) 507 #define snd_soc_dai_dma_data_set_capture(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_CAPTURE, data) 508 #define snd_soc_dai_set_dma_data(dai, ss, data) snd_soc_dai_dma_data_set(dai, ss->stream, data) 509 static inline void snd_soc_dai_dma_data_set(struct snd_soc_dai *dai, int stream, void *data) 510 { 511 dai->stream[stream].dma_data = data; 512 } 513 514 static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, void *playback, void *capture) 515 { 516 snd_soc_dai_dma_data_set_playback(dai, playback); 517 snd_soc_dai_dma_data_set_capture(dai, capture); 518 } 519 520 static inline unsigned int snd_soc_dai_tdm_mask_get(struct snd_soc_dai *dai, int stream) 521 { 522 return dai->stream[stream].tdm_mask; 523 } 524 525 static inline void snd_soc_dai_tdm_mask_set(struct snd_soc_dai *dai, int stream, 526 unsigned int tdm_mask) 527 { 528 dai->stream[stream].tdm_mask = tdm_mask; 529 } 530 531 static inline unsigned int snd_soc_dai_stream_active(struct snd_soc_dai *dai, int stream) 532 { 533 /* see snd_soc_dai_action() for setup */ 534 return dai->stream[stream].active; 535 } 536 537 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai, 538 void *data) 539 { 540 dev_set_drvdata(dai->dev, data); 541 } 542 543 static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai) 544 { 545 return dev_get_drvdata(dai->dev); 546 } 547 548 /** 549 * snd_soc_dai_set_stream() - Configures a DAI for stream operation 550 * @dai: DAI 551 * @stream: STREAM (opaque structure depending on DAI type) 552 * @direction: Stream direction(Playback/Capture) 553 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse 554 * the ASoC stream direction to configure sink/source ports. 555 * Playback maps to source ports and Capture for sink ports. 556 * 557 * This should be invoked with NULL to clear the stream set previously. 558 * Returns 0 on success, a negative error code otherwise. 559 */ 560 static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai, 561 void *stream, int direction) 562 { 563 if (dai->driver->ops->set_stream) 564 return dai->driver->ops->set_stream(dai, stream, direction); 565 else 566 return -ENOTSUPP; 567 } 568 569 /** 570 * snd_soc_dai_get_stream() - Retrieves stream from DAI 571 * @dai: DAI 572 * @direction: Stream direction(Playback/Capture) 573 * 574 * This routine only retrieves that was previously configured 575 * with snd_soc_dai_get_stream() 576 * 577 * Returns pointer to stream or an ERR_PTR value, e.g. 578 * ERR_PTR(-ENOTSUPP) if callback is not supported; 579 */ 580 static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai, 581 int direction) 582 { 583 if (dai->driver->ops->get_stream) 584 return dai->driver->ops->get_stream(dai, direction); 585 else 586 return ERR_PTR(-ENOTSUPP); 587 } 588 589 #endif 590