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(const struct snd_soc_pcm_runtime *rtd); 184 u64 snd_soc_dai_get_fmt(const 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, const unsigned int *tx_slot, 192 unsigned int rx_num, const 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(const 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(const 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, struct snd_soc_pcm_runtime *rtd); 220 bool snd_soc_dai_stream_valid(const struct snd_soc_dai *dai, int stream); 221 void snd_soc_dai_action(struct snd_soc_dai *dai, 222 int stream, int action); 223 static inline void snd_soc_dai_activate(struct snd_soc_dai *dai, 224 int stream) 225 { 226 snd_soc_dai_action(dai, stream, 1); 227 } 228 static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai, 229 int stream) 230 { 231 snd_soc_dai_action(dai, stream, -1); 232 } 233 int snd_soc_dai_active(const struct snd_soc_dai *dai); 234 235 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order); 236 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order); 237 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd); 238 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream); 239 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd, 240 int rollback); 241 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream, 242 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay); 243 244 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai, 245 struct snd_compr_stream *cstream); 246 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai, 247 struct snd_compr_stream *cstream, 248 int rollback); 249 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai, 250 struct snd_compr_stream *cstream, int cmd); 251 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai, 252 struct snd_compr_stream *cstream, 253 struct snd_compr_params *params); 254 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai, 255 struct snd_compr_stream *cstream, 256 struct snd_codec *params); 257 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai, 258 struct snd_compr_stream *cstream, 259 size_t bytes); 260 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai, 261 struct snd_compr_stream *cstream, 262 struct snd_compr_tstamp *tstamp); 263 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai, 264 struct snd_compr_stream *cstream, 265 struct snd_compr_metadata *metadata); 266 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai, 267 struct snd_compr_stream *cstream, 268 struct snd_compr_metadata *metadata); 269 270 const char *snd_soc_dai_name_get(const struct snd_soc_dai *dai); 271 272 struct snd_soc_dai_ops { 273 /* DAI driver callbacks */ 274 int (*probe)(struct snd_soc_dai *dai); 275 int (*remove)(struct snd_soc_dai *dai); 276 /* compress dai */ 277 int (*compress_new)(struct snd_soc_pcm_runtime *rtd); 278 /* Optional Callback used at pcm creation*/ 279 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd, 280 struct snd_soc_dai *dai); 281 282 /* 283 * DAI clocking configuration, all optional. 284 * Called by soc_card drivers, normally in their hw_params. 285 */ 286 int (*set_sysclk)(struct snd_soc_dai *dai, 287 int clk_id, unsigned int freq, int dir); 288 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source, 289 unsigned int freq_in, unsigned int freq_out); 290 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div); 291 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio); 292 293 /* 294 * DAI format configuration 295 * Called by soc_card drivers, normally in their hw_params. 296 */ 297 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt); 298 int (*xlate_tdm_slot_mask)(unsigned int slots, 299 unsigned int *tx_mask, unsigned int *rx_mask); 300 int (*set_tdm_slot)(struct snd_soc_dai *dai, 301 unsigned int tx_mask, unsigned int rx_mask, 302 int slots, int slot_width); 303 int (*set_channel_map)(struct snd_soc_dai *dai, 304 unsigned int tx_num, const unsigned int *tx_slot, 305 unsigned int rx_num, const unsigned int *rx_slot); 306 int (*get_channel_map)(const struct snd_soc_dai *dai, 307 unsigned int *tx_num, unsigned int *tx_slot, 308 unsigned int *rx_num, unsigned int *rx_slot); 309 int (*set_tristate)(struct snd_soc_dai *dai, int tristate); 310 311 int (*set_stream)(struct snd_soc_dai *dai, 312 void *stream, int direction); 313 void *(*get_stream)(struct snd_soc_dai *dai, int direction); 314 315 /* 316 * DAI digital mute - optional. 317 * Called by soc-core to minimise any pops. 318 */ 319 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream); 320 321 /* 322 * ALSA PCM audio operations - all optional. 323 * Called by soc-core during audio PCM operations. 324 */ 325 int (*startup)(struct snd_pcm_substream *, 326 struct snd_soc_dai *); 327 void (*shutdown)(struct snd_pcm_substream *, 328 struct snd_soc_dai *); 329 int (*hw_params)(struct snd_pcm_substream *, 330 struct snd_pcm_hw_params *, struct snd_soc_dai *); 331 int (*hw_free)(struct snd_pcm_substream *, 332 struct snd_soc_dai *); 333 int (*prepare)(struct snd_pcm_substream *, 334 struct snd_soc_dai *); 335 /* 336 * NOTE: Commands passed to the trigger function are not necessarily 337 * compatible with the current state of the dai. For example this 338 * sequence of commands is possible: START STOP STOP. 339 * So do not unconditionally use refcounting functions in the trigger 340 * function, e.g. clk_enable/disable. 341 */ 342 int (*trigger)(struct snd_pcm_substream *, int, 343 struct snd_soc_dai *); 344 345 /* 346 * For hardware based FIFO caused delay reporting. 347 * Optional. 348 */ 349 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, 350 struct snd_soc_dai *); 351 352 /* 353 * Format list for auto selection. 354 * Format will be increased if priority format was 355 * not selected. 356 * see 357 * snd_soc_dai_get_fmt() 358 */ 359 const u64 *auto_selectable_formats; 360 int num_auto_selectable_formats; 361 362 /* probe ordering - for components with runtime dependencies */ 363 int probe_order; 364 int remove_order; 365 366 /* bit field */ 367 unsigned int no_capture_mute:1; 368 unsigned int mute_unmute_on_trigger:1; 369 }; 370 371 struct snd_soc_cdai_ops { 372 /* 373 * for compress ops 374 */ 375 int (*startup)(struct snd_compr_stream *, 376 struct snd_soc_dai *); 377 int (*shutdown)(struct snd_compr_stream *, 378 struct snd_soc_dai *); 379 int (*set_params)(struct snd_compr_stream *, 380 struct snd_compr_params *, struct snd_soc_dai *); 381 int (*get_params)(struct snd_compr_stream *, 382 struct snd_codec *, struct snd_soc_dai *); 383 int (*set_metadata)(struct snd_compr_stream *, 384 struct snd_compr_metadata *, struct snd_soc_dai *); 385 int (*get_metadata)(struct snd_compr_stream *, 386 struct snd_compr_metadata *, struct snd_soc_dai *); 387 int (*trigger)(struct snd_compr_stream *, int, 388 struct snd_soc_dai *); 389 int (*pointer)(struct snd_compr_stream *, 390 struct snd_compr_tstamp *, struct snd_soc_dai *); 391 int (*ack)(struct snd_compr_stream *, size_t, 392 struct snd_soc_dai *); 393 }; 394 395 /* 396 * Digital Audio Interface Driver. 397 * 398 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97 399 * operations and capabilities. Codec and platform drivers will register this 400 * structure for every DAI they have. 401 * 402 * This structure covers the clocking, formating and ALSA operations for each 403 * interface. 404 */ 405 struct snd_soc_dai_driver { 406 /* DAI description */ 407 const char *name; 408 unsigned int id; 409 unsigned int base; 410 struct snd_soc_dobj dobj; 411 const struct of_phandle_args *dai_args; 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 }; 424 425 /* for Playback/Capture */ 426 struct snd_soc_dai_stream { 427 struct snd_soc_dapm_widget *widget; 428 429 unsigned int active; /* usage count */ 430 unsigned int tdm_mask; /* CODEC TDM slot masks and params (for fixup) */ 431 432 void *dma_data; /* DAI DMA data */ 433 }; 434 435 /* 436 * Digital Audio Interface runtime data. 437 * 438 * Holds runtime data for a DAI. 439 */ 440 struct snd_soc_dai { 441 const char *name; 442 int id; 443 struct device *dev; 444 445 /* driver ops */ 446 struct snd_soc_dai_driver *driver; 447 448 /* DAI runtime info */ 449 struct snd_soc_dai_stream stream[SNDRV_PCM_STREAM_LAST + 1]; 450 451 /* Symmetry data - only valid if symmetry is being enforced */ 452 unsigned int symmetric_rate; 453 unsigned int symmetric_channels; 454 unsigned int symmetric_sample_bits; 455 456 /* parent platform/codec */ 457 struct snd_soc_component *component; 458 459 struct list_head list; 460 461 /* function mark */ 462 struct snd_pcm_substream *mark_startup; 463 struct snd_pcm_substream *mark_hw_params; 464 struct snd_pcm_substream *mark_trigger; 465 struct snd_compr_stream *mark_compr_startup; 466 467 /* bit field */ 468 unsigned int probed:1; 469 }; 470 471 static inline const struct snd_soc_pcm_stream * 472 snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream) 473 { 474 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? 475 &dai->driver->playback : &dai->driver->capture; 476 } 477 478 #define snd_soc_dai_get_widget_playback(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK) 479 #define snd_soc_dai_get_widget_capture(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE) 480 static inline 481 struct snd_soc_dapm_widget *snd_soc_dai_get_widget(struct snd_soc_dai *dai, int stream) 482 { 483 return dai->stream[stream].widget; 484 } 485 486 #define snd_soc_dai_set_widget_playback(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_PLAYBACK, widget) 487 #define snd_soc_dai_set_widget_capture(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_CAPTURE, widget) 488 static inline 489 void snd_soc_dai_set_widget(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_widget *widget) 490 { 491 dai->stream[stream].widget = widget; 492 } 493 494 #define snd_soc_dai_dma_data_get_playback(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_PLAYBACK) 495 #define snd_soc_dai_dma_data_get_capture(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_CAPTURE) 496 #define snd_soc_dai_get_dma_data(dai, ss) snd_soc_dai_dma_data_get(dai, ss->stream) 497 static inline void *snd_soc_dai_dma_data_get(const struct snd_soc_dai *dai, int stream) 498 { 499 return dai->stream[stream].dma_data; 500 } 501 502 #define snd_soc_dai_dma_data_set_playback(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_PLAYBACK, data) 503 #define snd_soc_dai_dma_data_set_capture(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_CAPTURE, data) 504 #define snd_soc_dai_set_dma_data(dai, ss, data) snd_soc_dai_dma_data_set(dai, ss->stream, data) 505 static inline void snd_soc_dai_dma_data_set(struct snd_soc_dai *dai, int stream, void *data) 506 { 507 dai->stream[stream].dma_data = data; 508 } 509 510 static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, void *playback, void *capture) 511 { 512 snd_soc_dai_dma_data_set_playback(dai, playback); 513 snd_soc_dai_dma_data_set_capture(dai, capture); 514 } 515 516 static inline unsigned int snd_soc_dai_tdm_mask_get(const struct snd_soc_dai *dai, 517 int stream) 518 { 519 return dai->stream[stream].tdm_mask; 520 } 521 522 static inline void snd_soc_dai_tdm_mask_set(struct snd_soc_dai *dai, int stream, 523 unsigned int tdm_mask) 524 { 525 dai->stream[stream].tdm_mask = tdm_mask; 526 } 527 528 static inline unsigned int snd_soc_dai_stream_active(const struct snd_soc_dai *dai, 529 int stream) 530 { 531 /* see snd_soc_dai_action() for setup */ 532 return dai->stream[stream].active; 533 } 534 535 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai, 536 void *data) 537 { 538 dev_set_drvdata(dai->dev, data); 539 } 540 541 static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai) 542 { 543 return dev_get_drvdata(dai->dev); 544 } 545 546 /** 547 * snd_soc_dai_set_stream() - Configures a DAI for stream operation 548 * @dai: DAI 549 * @stream: STREAM (opaque structure depending on DAI type) 550 * @direction: Stream direction(Playback/Capture) 551 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse 552 * the ASoC stream direction to configure sink/source ports. 553 * Playback maps to source ports and Capture for sink ports. 554 * 555 * This should be invoked with NULL to clear the stream set previously. 556 * Returns 0 on success, a negative error code otherwise. 557 */ 558 static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai, 559 void *stream, int direction) 560 { 561 if (dai->driver->ops->set_stream) 562 return dai->driver->ops->set_stream(dai, stream, direction); 563 else 564 return -ENOTSUPP; 565 } 566 567 /** 568 * snd_soc_dai_get_stream() - Retrieves stream from DAI 569 * @dai: DAI 570 * @direction: Stream direction(Playback/Capture) 571 * 572 * This routine only retrieves that was previously configured 573 * with snd_soc_dai_get_stream() 574 * 575 * Returns pointer to stream or an ERR_PTR value, e.g. 576 * ERR_PTR(-ENOTSUPP) if callback is not supported; 577 */ 578 static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai, 579 int direction) 580 { 581 if (dai->driver->ops->get_stream) 582 return dai->driver->ops->get_stream(dai, direction); 583 else 584 return ERR_PTR(-ENOTSUPP); 585 } 586 587 #endif 588