| 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | // |
| 3 | // soc-dai.c |
| 4 | // |
| 5 | // Copyright (C) 2019 Renesas Electronics Corp. |
| 6 | // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| 7 | // |
| 8 | |
| 9 | #include <sound/soc.h> |
| 10 | #include <sound/soc-dai.h> |
| 11 | #include <sound/soc-link.h> |
| 12 | |
| 13 | #define soc_dai_ret(dai, ret) _soc_dai_ret(dai, __func__, ret) |
| 14 | static inline int _soc_dai_ret(struct snd_soc_dai *dai, |
| 15 | const char *func, int ret) |
| 16 | { |
| 17 | /* Positive, Zero values are not errors */ |
| 18 | if (ret >= 0) |
| 19 | return ret; |
| 20 | |
| 21 | /* Negative values might be errors */ |
| 22 | switch (ret) { |
| 23 | case -EPROBE_DEFER: |
| 24 | case -ENOTSUPP: |
| 25 | break; |
| 26 | default: |
| 27 | dev_err(dai->dev, |
| 28 | "ASoC: error at %s on %s: %d\n", |
| 29 | func, dai->name, ret); |
| 30 | } |
| 31 | |
| 32 | return ret; |
| 33 | } |
| 34 | |
| 35 | /* |
| 36 | * We might want to check substream by using list. |
| 37 | * In such case, we can update these macros. |
| 38 | */ |
| 39 | #define soc_dai_mark_push(dai, substream, tgt) ((dai)->mark_##tgt = substream) |
| 40 | #define soc_dai_mark_pop(dai, substream, tgt) ((dai)->mark_##tgt = NULL) |
| 41 | #define soc_dai_mark_match(dai, substream, tgt) ((dai)->mark_##tgt == substream) |
| 42 | |
| 43 | /** |
| 44 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. |
| 45 | * @dai: DAI |
| 46 | * @clk_id: DAI specific clock ID |
| 47 | * @freq: new clock frequency in Hz |
| 48 | * @dir: new clock direction (SND_SOC_CLOCK_IN or SND_SOC_CLOCK_OUT) |
| 49 | * |
| 50 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. |
| 51 | */ |
| 52 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, |
| 53 | unsigned int freq, int dir) |
| 54 | { |
| 55 | int ret; |
| 56 | |
| 57 | if (dai->driver->ops && |
| 58 | dai->driver->ops->set_sysclk) |
| 59 | ret = dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); |
| 60 | else |
| 61 | ret = snd_soc_component_set_sysclk(dai->component, clk_id, 0, |
| 62 | freq, dir); |
| 63 | |
| 64 | return soc_dai_ret(dai, ret); |
| 65 | } |
| 66 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); |
| 67 | |
| 68 | /** |
| 69 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. |
| 70 | * @dai: DAI |
| 71 | * @div_id: DAI specific clock divider ID |
| 72 | * @div: new clock divisor. |
| 73 | * |
| 74 | * Configures the clock dividers. This is used to derive the best DAI bit and |
| 75 | * frame clocks from the system or master clock. It's best to set the DAI bit |
| 76 | * and frame clocks as low as possible to save system power. |
| 77 | */ |
| 78 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, |
| 79 | int div_id, int div) |
| 80 | { |
| 81 | int ret = -EINVAL; |
| 82 | |
| 83 | if (dai->driver->ops && |
| 84 | dai->driver->ops->set_clkdiv) |
| 85 | ret = dai->driver->ops->set_clkdiv(dai, div_id, div); |
| 86 | |
| 87 | return soc_dai_ret(dai, ret); |
| 88 | } |
| 89 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); |
| 90 | |
| 91 | /** |
| 92 | * snd_soc_dai_set_pll - configure DAI PLL. |
| 93 | * @dai: DAI |
| 94 | * @pll_id: DAI specific PLL ID |
| 95 | * @source: DAI specific source for the PLL |
| 96 | * @freq_in: PLL input clock frequency in Hz |
| 97 | * @freq_out: requested PLL output clock frequency in Hz |
| 98 | * |
| 99 | * Configures and enables PLL to generate output clock based on input clock. |
| 100 | */ |
| 101 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
| 102 | unsigned int freq_in, unsigned int freq_out) |
| 103 | { |
| 104 | int ret; |
| 105 | |
| 106 | if (dai->driver->ops && |
| 107 | dai->driver->ops->set_pll) |
| 108 | ret = dai->driver->ops->set_pll(dai, pll_id, source, |
| 109 | freq_in, freq_out); |
| 110 | else |
| 111 | ret = snd_soc_component_set_pll(dai->component, pll_id, source, |
| 112 | freq_in, freq_out); |
| 113 | |
| 114 | return soc_dai_ret(dai, ret); |
| 115 | } |
| 116 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); |
| 117 | |
| 118 | /** |
| 119 | * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. |
| 120 | * @dai: DAI |
| 121 | * @ratio: Ratio of BCLK to Sample rate. |
| 122 | * |
| 123 | * Configures the DAI for a preset BCLK to sample rate ratio. |
| 124 | */ |
| 125 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) |
| 126 | { |
| 127 | int ret = -ENOTSUPP; |
| 128 | |
| 129 | if (dai->driver->ops && |
| 130 | dai->driver->ops->set_bclk_ratio) |
| 131 | ret = dai->driver->ops->set_bclk_ratio(dai, ratio); |
| 132 | |
| 133 | return soc_dai_ret(dai, ret); |
| 134 | } |
| 135 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); |
| 136 | |
| 137 | int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd) |
| 138 | { |
| 139 | struct snd_soc_dai *dai; |
| 140 | int i, max = 0; |
| 141 | |
| 142 | /* |
| 143 | * return max num if *ALL* DAIs have .auto_selectable_formats |
| 144 | */ |
| 145 | for_each_rtd_dais(rtd, i, dai) { |
| 146 | if (dai->driver->ops && |
| 147 | dai->driver->ops->num_auto_selectable_formats) |
| 148 | max = max(max, dai->driver->ops->num_auto_selectable_formats); |
| 149 | else |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | return max; |
| 154 | } |
| 155 | |
| 156 | /** |
| 157 | * snd_soc_dai_get_fmt - get supported audio format. |
| 158 | * @dai: DAI |
| 159 | * @priority: priority level of supported audio format. |
| 160 | * |
| 161 | * This should return only formats implemented with high |
| 162 | * quality by the DAI so that the core can configure a |
| 163 | * format which will work well with other devices. |
| 164 | * For example devices which don't support both edges of the |
| 165 | * LRCLK signal in I2S style formats should only list DSP |
| 166 | * modes. This will mean that sometimes fewer formats |
| 167 | * are reported here than are supported by set_fmt(). |
| 168 | */ |
| 169 | u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority) |
| 170 | { |
| 171 | const struct snd_soc_dai_ops *ops = dai->driver->ops; |
| 172 | u64 fmt = 0; |
| 173 | int i, max = 0, until = priority; |
| 174 | |
| 175 | /* |
| 176 | * Collect auto_selectable_formats until priority |
| 177 | * |
| 178 | * ex) |
| 179 | * auto_selectable_formats[] = { A, B, C }; |
| 180 | * (A, B, C = SND_SOC_POSSIBLE_DAIFMT_xxx) |
| 181 | * |
| 182 | * priority = 1 : A |
| 183 | * priority = 2 : A | B |
| 184 | * priority = 3 : A | B | C |
| 185 | * priority = 4 : A | B | C |
| 186 | * ... |
| 187 | */ |
| 188 | if (ops) |
| 189 | max = ops->num_auto_selectable_formats; |
| 190 | |
| 191 | if (max < until) |
| 192 | until = max; |
| 193 | |
| 194 | for (i = 0; i < until; i++) |
| 195 | fmt |= ops->auto_selectable_formats[i]; |
| 196 | |
| 197 | return fmt; |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. |
| 202 | * @dai: DAI |
| 203 | * @fmt: SND_SOC_DAIFMT_* format value. |
| 204 | * |
| 205 | * Configures the DAI hardware format and clocking. |
| 206 | */ |
| 207 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
| 208 | { |
| 209 | int ret = -ENOTSUPP; |
| 210 | |
| 211 | if (dai->driver->ops && dai->driver->ops->set_fmt) |
| 212 | ret = dai->driver->ops->set_fmt(dai, fmt); |
| 213 | |
| 214 | return soc_dai_ret(dai, ret); |
| 215 | } |
| 216 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); |
| 217 | |
| 218 | /** |
| 219 | * snd_soc_xlate_tdm_slot_mask - generate tx/rx slot mask. |
| 220 | * @slots: Number of slots in use. |
| 221 | * @tx_mask: bitmask representing active TX slots. |
| 222 | * @rx_mask: bitmask representing active RX slots. |
| 223 | * |
| 224 | * Generates the TDM tx and rx slot default masks for DAI. |
| 225 | */ |
| 226 | static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, |
| 227 | unsigned int *tx_mask, |
| 228 | unsigned int *rx_mask) |
| 229 | { |
| 230 | if (*tx_mask || *rx_mask) |
| 231 | return 0; |
| 232 | |
| 233 | if (!slots) |
| 234 | return -EINVAL; |
| 235 | |
| 236 | *tx_mask = (1 << slots) - 1; |
| 237 | *rx_mask = (1 << slots) - 1; |
| 238 | |
| 239 | return 0; |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation |
| 244 | * @dai: The DAI to configure |
| 245 | * @tx_mask: bitmask representing active TX slots. |
| 246 | * @rx_mask: bitmask representing active RX slots. |
| 247 | * @slots: Number of slots in use. |
| 248 | * @slot_width: Width in bits for each slot. |
| 249 | * |
| 250 | * This function configures the specified DAI for TDM operation. @slot contains |
| 251 | * the total number of slots of the TDM stream and @slot_with the width of each |
| 252 | * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the |
| 253 | * active slots of the TDM stream for the specified DAI, i.e. which slots the |
| 254 | * DAI should write to or read from. If a bit is set the corresponding slot is |
| 255 | * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to |
| 256 | * the first slot, bit 1 to the second slot and so on. The first active slot |
| 257 | * maps to the first channel of the DAI, the second active slot to the second |
| 258 | * channel and so on. |
| 259 | * |
| 260 | * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, |
| 261 | * @rx_mask and @slot_width will be ignored. |
| 262 | * |
| 263 | * Returns 0 on success, a negative error code otherwise. |
| 264 | */ |
| 265 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, |
| 266 | unsigned int tx_mask, unsigned int rx_mask, |
| 267 | int slots, int slot_width) |
| 268 | { |
| 269 | int ret = -ENOTSUPP; |
| 270 | int stream; |
| 271 | unsigned int *tdm_mask[] = { |
| 272 | &tx_mask, |
| 273 | &rx_mask, |
| 274 | }; |
| 275 | |
| 276 | if (dai->driver->ops && |
| 277 | dai->driver->ops->xlate_tdm_slot_mask) |
| 278 | dai->driver->ops->xlate_tdm_slot_mask(slots, |
| 279 | &tx_mask, &rx_mask); |
| 280 | else |
| 281 | snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); |
| 282 | |
| 283 | for_each_pcm_streams(stream) |
| 284 | snd_soc_dai_tdm_mask_set(dai, stream, *tdm_mask[stream]); |
| 285 | |
| 286 | if (dai->driver->ops && |
| 287 | dai->driver->ops->set_tdm_slot) |
| 288 | ret = dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, |
| 289 | slots, slot_width); |
| 290 | return soc_dai_ret(dai, ret); |
| 291 | } |
| 292 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); |
| 293 | |
| 294 | /** |
| 295 | * snd_soc_dai_set_channel_map - configure DAI audio channel map |
| 296 | * @dai: DAI |
| 297 | * @tx_num: how many TX channels |
| 298 | * @tx_slot: pointer to an array which imply the TX slot number channel |
| 299 | * 0~num-1 uses |
| 300 | * @rx_num: how many RX channels |
| 301 | * @rx_slot: pointer to an array which imply the RX slot number channel |
| 302 | * 0~num-1 uses |
| 303 | * |
| 304 | * configure the relationship between channel number and TDM slot number. |
| 305 | */ |
| 306 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, |
| 307 | unsigned int tx_num, unsigned int *tx_slot, |
| 308 | unsigned int rx_num, unsigned int *rx_slot) |
| 309 | { |
| 310 | int ret = -ENOTSUPP; |
| 311 | |
| 312 | if (dai->driver->ops && |
| 313 | dai->driver->ops->set_channel_map) |
| 314 | ret = dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, |
| 315 | rx_num, rx_slot); |
| 316 | return soc_dai_ret(dai, ret); |
| 317 | } |
| 318 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); |
| 319 | |
| 320 | /** |
| 321 | * snd_soc_dai_get_channel_map - Get DAI audio channel map |
| 322 | * @dai: DAI |
| 323 | * @tx_num: how many TX channels |
| 324 | * @tx_slot: pointer to an array which imply the TX slot number channel |
| 325 | * 0~num-1 uses |
| 326 | * @rx_num: how many RX channels |
| 327 | * @rx_slot: pointer to an array which imply the RX slot number channel |
| 328 | * 0~num-1 uses |
| 329 | */ |
| 330 | int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai, |
| 331 | unsigned int *tx_num, unsigned int *tx_slot, |
| 332 | unsigned int *rx_num, unsigned int *rx_slot) |
| 333 | { |
| 334 | int ret = -ENOTSUPP; |
| 335 | |
| 336 | if (dai->driver->ops && |
| 337 | dai->driver->ops->get_channel_map) |
| 338 | ret = dai->driver->ops->get_channel_map(dai, tx_num, tx_slot, |
| 339 | rx_num, rx_slot); |
| 340 | return soc_dai_ret(dai, ret); |
| 341 | } |
| 342 | EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map); |
| 343 | |
| 344 | /** |
| 345 | * snd_soc_dai_set_tristate - configure DAI system or master clock. |
| 346 | * @dai: DAI |
| 347 | * @tristate: tristate enable |
| 348 | * |
| 349 | * Tristates the DAI so that others can use it. |
| 350 | */ |
| 351 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) |
| 352 | { |
| 353 | int ret = -EINVAL; |
| 354 | |
| 355 | if (dai->driver->ops && |
| 356 | dai->driver->ops->set_tristate) |
| 357 | ret = dai->driver->ops->set_tristate(dai, tristate); |
| 358 | |
| 359 | return soc_dai_ret(dai, ret); |
| 360 | } |
| 361 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); |
| 362 | |
| 363 | /** |
| 364 | * snd_soc_dai_digital_mute - configure DAI system or master clock. |
| 365 | * @dai: DAI |
| 366 | * @mute: mute enable |
| 367 | * @direction: stream to mute |
| 368 | * |
| 369 | * Mutes the DAI DAC. |
| 370 | */ |
| 371 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
| 372 | int direction) |
| 373 | { |
| 374 | int ret = -ENOTSUPP; |
| 375 | |
| 376 | /* |
| 377 | * ignore if direction was CAPTURE |
| 378 | * and it had .no_capture_mute flag |
| 379 | */ |
| 380 | if (dai->driver->ops && |
| 381 | dai->driver->ops->mute_stream && |
| 382 | (direction == SNDRV_PCM_STREAM_PLAYBACK || |
| 383 | !dai->driver->ops->no_capture_mute)) |
| 384 | ret = dai->driver->ops->mute_stream(dai, mute, direction); |
| 385 | |
| 386 | return soc_dai_ret(dai, ret); |
| 387 | } |
| 388 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); |
| 389 | |
| 390 | int snd_soc_dai_hw_params(struct snd_soc_dai *dai, |
| 391 | struct snd_pcm_substream *substream, |
| 392 | struct snd_pcm_hw_params *params) |
| 393 | { |
| 394 | int ret = 0; |
| 395 | |
| 396 | if (dai->driver->ops && |
| 397 | dai->driver->ops->hw_params) |
| 398 | ret = dai->driver->ops->hw_params(substream, params, dai); |
| 399 | |
| 400 | /* mark substream if succeeded */ |
| 401 | if (ret == 0) |
| 402 | soc_dai_mark_push(dai, substream, hw_params); |
| 403 | |
| 404 | return soc_dai_ret(dai, ret); |
| 405 | } |
| 406 | |
| 407 | void snd_soc_dai_hw_free(struct snd_soc_dai *dai, |
| 408 | struct snd_pcm_substream *substream, |
| 409 | int rollback) |
| 410 | { |
| 411 | if (rollback && !soc_dai_mark_match(dai, substream, hw_params)) |
| 412 | return; |
| 413 | |
| 414 | if (dai->driver->ops && |
| 415 | dai->driver->ops->hw_free) |
| 416 | dai->driver->ops->hw_free(substream, dai); |
| 417 | |
| 418 | /* remove marked substream */ |
| 419 | soc_dai_mark_pop(dai, substream, hw_params); |
| 420 | } |
| 421 | |
| 422 | int snd_soc_dai_startup(struct snd_soc_dai *dai, |
| 423 | struct snd_pcm_substream *substream) |
| 424 | { |
| 425 | int ret = 0; |
| 426 | |
| 427 | if (!snd_soc_dai_stream_valid(dai, substream->stream)) |
| 428 | return 0; |
| 429 | |
| 430 | if (dai->driver->ops && |
| 431 | dai->driver->ops->startup) |
| 432 | ret = dai->driver->ops->startup(substream, dai); |
| 433 | |
| 434 | /* mark substream if succeeded */ |
| 435 | if (ret == 0) |
| 436 | soc_dai_mark_push(dai, substream, startup); |
| 437 | |
| 438 | return soc_dai_ret(dai, ret); |
| 439 | } |
| 440 | |
| 441 | void snd_soc_dai_shutdown(struct snd_soc_dai *dai, |
| 442 | struct snd_pcm_substream *substream, |
| 443 | int rollback) |
| 444 | { |
| 445 | if (!snd_soc_dai_stream_valid(dai, substream->stream)) |
| 446 | return; |
| 447 | |
| 448 | if (rollback && !soc_dai_mark_match(dai, substream, startup)) |
| 449 | return; |
| 450 | |
| 451 | if (dai->driver->ops && |
| 452 | dai->driver->ops->shutdown) |
| 453 | dai->driver->ops->shutdown(substream, dai); |
| 454 | |
| 455 | /* remove marked substream */ |
| 456 | soc_dai_mark_pop(dai, substream, startup); |
| 457 | } |
| 458 | |
| 459 | int snd_soc_dai_compress_new(struct snd_soc_dai *dai, |
| 460 | struct snd_soc_pcm_runtime *rtd, int num) |
| 461 | { |
| 462 | int ret = -ENOTSUPP; |
| 463 | if (dai->driver->ops && |
| 464 | dai->driver->ops->compress_new) |
| 465 | ret = dai->driver->ops->compress_new(rtd, num); |
| 466 | return soc_dai_ret(dai, ret); |
| 467 | } |
| 468 | |
| 469 | /* |
| 470 | * snd_soc_dai_stream_valid() - check if a DAI supports the given stream |
| 471 | * |
| 472 | * Returns true if the DAI supports the indicated stream type. |
| 473 | */ |
| 474 | bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int dir) |
| 475 | { |
| 476 | struct snd_soc_pcm_stream *stream = snd_soc_dai_get_pcm_stream(dai, dir); |
| 477 | |
| 478 | /* If the codec specifies any channels at all, it supports the stream */ |
| 479 | return stream->channels_min; |
| 480 | } |
| 481 | |
| 482 | /* |
| 483 | * snd_soc_dai_link_set_capabilities() - set dai_link properties based on its DAIs |
| 484 | */ |
| 485 | void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link) |
| 486 | { |
| 487 | bool supported[SNDRV_PCM_STREAM_LAST + 1]; |
| 488 | int direction; |
| 489 | |
| 490 | for_each_pcm_streams(direction) { |
| 491 | struct snd_soc_dai_link_component *cpu; |
| 492 | struct snd_soc_dai_link_component *codec; |
| 493 | struct snd_soc_dai *dai; |
| 494 | bool supported_cpu = false; |
| 495 | bool supported_codec = false; |
| 496 | int i; |
| 497 | |
| 498 | for_each_link_cpus(dai_link, i, cpu) { |
| 499 | dai = snd_soc_find_dai_with_mutex(cpu); |
| 500 | if (dai && snd_soc_dai_stream_valid(dai, direction)) { |
| 501 | supported_cpu = true; |
| 502 | break; |
| 503 | } |
| 504 | } |
| 505 | for_each_link_codecs(dai_link, i, codec) { |
| 506 | dai = snd_soc_find_dai_with_mutex(codec); |
| 507 | if (dai && snd_soc_dai_stream_valid(dai, direction)) { |
| 508 | supported_codec = true; |
| 509 | break; |
| 510 | } |
| 511 | } |
| 512 | supported[direction] = supported_cpu && supported_codec; |
| 513 | } |
| 514 | |
| 515 | dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK]; |
| 516 | dai_link->dpcm_capture = supported[SNDRV_PCM_STREAM_CAPTURE]; |
| 517 | } |
| 518 | EXPORT_SYMBOL_GPL(snd_soc_dai_link_set_capabilities); |
| 519 | |
| 520 | void snd_soc_dai_action(struct snd_soc_dai *dai, |
| 521 | int stream, int action) |
| 522 | { |
| 523 | /* see snd_soc_dai_stream_active() */ |
| 524 | dai->stream[stream].active += action; |
| 525 | |
| 526 | /* see snd_soc_component_active() */ |
| 527 | dai->component->active += action; |
| 528 | } |
| 529 | EXPORT_SYMBOL_GPL(snd_soc_dai_action); |
| 530 | |
| 531 | int snd_soc_dai_active(struct snd_soc_dai *dai) |
| 532 | { |
| 533 | int stream, active; |
| 534 | |
| 535 | active = 0; |
| 536 | for_each_pcm_streams(stream) |
| 537 | active += dai->stream[stream].active; |
| 538 | |
| 539 | return active; |
| 540 | } |
| 541 | EXPORT_SYMBOL_GPL(snd_soc_dai_active); |
| 542 | |
| 543 | int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order) |
| 544 | { |
| 545 | struct snd_soc_dai *dai; |
| 546 | int i; |
| 547 | |
| 548 | for_each_rtd_dais(rtd, i, dai) { |
| 549 | if (dai->probed) |
| 550 | continue; |
| 551 | |
| 552 | if (dai->driver->ops) { |
| 553 | if (dai->driver->ops->probe_order != order) |
| 554 | continue; |
| 555 | |
| 556 | if (dai->driver->ops->probe) { |
| 557 | int ret = dai->driver->ops->probe(dai); |
| 558 | |
| 559 | if (ret < 0) |
| 560 | return soc_dai_ret(dai, ret); |
| 561 | } |
| 562 | } |
| 563 | dai->probed = 1; |
| 564 | } |
| 565 | |
| 566 | return 0; |
| 567 | } |
| 568 | |
| 569 | int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order) |
| 570 | { |
| 571 | struct snd_soc_dai *dai; |
| 572 | int i, r, ret = 0; |
| 573 | |
| 574 | for_each_rtd_dais(rtd, i, dai) { |
| 575 | if (!dai->probed) |
| 576 | continue; |
| 577 | |
| 578 | if (dai->driver->ops) { |
| 579 | if (dai->driver->ops->remove_order != order) |
| 580 | continue; |
| 581 | |
| 582 | if (dai->driver->ops->remove) { |
| 583 | r = dai->driver->ops->remove(dai); |
| 584 | if (r < 0) |
| 585 | ret = r; /* use last error */ |
| 586 | } |
| 587 | } |
| 588 | dai->probed = 0; |
| 589 | } |
| 590 | |
| 591 | return ret; |
| 592 | } |
| 593 | |
| 594 | int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd) |
| 595 | { |
| 596 | struct snd_soc_dai *dai; |
| 597 | int i; |
| 598 | |
| 599 | for_each_rtd_dais(rtd, i, dai) { |
| 600 | if (dai->driver->ops && |
| 601 | dai->driver->ops->pcm_new) { |
| 602 | int ret = dai->driver->ops->pcm_new(rtd, dai); |
| 603 | if (ret < 0) |
| 604 | return soc_dai_ret(dai, ret); |
| 605 | } |
| 606 | } |
| 607 | |
| 608 | return 0; |
| 609 | } |
| 610 | |
| 611 | int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream) |
| 612 | { |
| 613 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
| 614 | struct snd_soc_dai *dai; |
| 615 | int i, ret; |
| 616 | |
| 617 | for_each_rtd_dais(rtd, i, dai) { |
| 618 | if (!snd_soc_dai_stream_valid(dai, substream->stream)) |
| 619 | continue; |
| 620 | if (dai->driver->ops && |
| 621 | dai->driver->ops->prepare) { |
| 622 | ret = dai->driver->ops->prepare(substream, dai); |
| 623 | if (ret < 0) |
| 624 | return soc_dai_ret(dai, ret); |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | return 0; |
| 629 | } |
| 630 | |
| 631 | static int soc_dai_trigger(struct snd_soc_dai *dai, |
| 632 | struct snd_pcm_substream *substream, int cmd) |
| 633 | { |
| 634 | int ret = 0; |
| 635 | |
| 636 | if (!snd_soc_dai_stream_valid(dai, substream->stream)) |
| 637 | return 0; |
| 638 | |
| 639 | if (dai->driver->ops && |
| 640 | dai->driver->ops->trigger) |
| 641 | ret = dai->driver->ops->trigger(substream, cmd, dai); |
| 642 | |
| 643 | return soc_dai_ret(dai, ret); |
| 644 | } |
| 645 | |
| 646 | int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, |
| 647 | int cmd, int rollback) |
| 648 | { |
| 649 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
| 650 | struct snd_soc_dai *dai; |
| 651 | int i, r, ret = 0; |
| 652 | |
| 653 | switch (cmd) { |
| 654 | case SNDRV_PCM_TRIGGER_START: |
| 655 | case SNDRV_PCM_TRIGGER_RESUME: |
| 656 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| 657 | for_each_rtd_dais(rtd, i, dai) { |
| 658 | ret = soc_dai_trigger(dai, substream, cmd); |
| 659 | if (ret < 0) |
| 660 | break; |
| 661 | |
| 662 | if (dai->driver->ops && dai->driver->ops->mute_unmute_on_trigger) |
| 663 | snd_soc_dai_digital_mute(dai, 0, substream->stream); |
| 664 | |
| 665 | soc_dai_mark_push(dai, substream, trigger); |
| 666 | } |
| 667 | break; |
| 668 | case SNDRV_PCM_TRIGGER_STOP: |
| 669 | case SNDRV_PCM_TRIGGER_SUSPEND: |
| 670 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| 671 | for_each_rtd_dais(rtd, i, dai) { |
| 672 | if (rollback && !soc_dai_mark_match(dai, substream, trigger)) |
| 673 | continue; |
| 674 | |
| 675 | if (dai->driver->ops && dai->driver->ops->mute_unmute_on_trigger) |
| 676 | snd_soc_dai_digital_mute(dai, 1, substream->stream); |
| 677 | |
| 678 | r = soc_dai_trigger(dai, substream, cmd); |
| 679 | if (r < 0) |
| 680 | ret = r; /* use last ret */ |
| 681 | soc_dai_mark_pop(dai, substream, trigger); |
| 682 | } |
| 683 | } |
| 684 | |
| 685 | return ret; |
| 686 | } |
| 687 | |
| 688 | int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream, |
| 689 | int cmd) |
| 690 | { |
| 691 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
| 692 | struct snd_soc_dai *dai; |
| 693 | int i, ret; |
| 694 | |
| 695 | for_each_rtd_dais(rtd, i, dai) { |
| 696 | if (dai->driver->ops && |
| 697 | dai->driver->ops->bespoke_trigger) { |
| 698 | ret = dai->driver->ops->bespoke_trigger(substream, |
| 699 | cmd, dai); |
| 700 | if (ret < 0) |
| 701 | return soc_dai_ret(dai, ret); |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | return 0; |
| 706 | } |
| 707 | |
| 708 | void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream, |
| 709 | snd_pcm_sframes_t *cpu_delay, |
| 710 | snd_pcm_sframes_t *codec_delay) |
| 711 | { |
| 712 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
| 713 | struct snd_soc_dai *dai; |
| 714 | int i; |
| 715 | |
| 716 | /* |
| 717 | * We're looking for the delay through the full audio path so it needs to |
| 718 | * be the maximum of the DAIs doing transmit and the maximum of the DAIs |
| 719 | * doing receive (ie, all CPUs and all CODECs) rather than just the maximum |
| 720 | * of all DAIs. |
| 721 | */ |
| 722 | |
| 723 | /* for CPU */ |
| 724 | for_each_rtd_cpu_dais(rtd, i, dai) |
| 725 | if (dai->driver->ops && |
| 726 | dai->driver->ops->delay) |
| 727 | *cpu_delay = max(*cpu_delay, dai->driver->ops->delay(substream, dai)); |
| 728 | |
| 729 | /* for Codec */ |
| 730 | for_each_rtd_codec_dais(rtd, i, dai) |
| 731 | if (dai->driver->ops && |
| 732 | dai->driver->ops->delay) |
| 733 | *codec_delay = max(*codec_delay, dai->driver->ops->delay(substream, dai)); |
| 734 | } |
| 735 | |
| 736 | int snd_soc_dai_compr_startup(struct snd_soc_dai *dai, |
| 737 | struct snd_compr_stream *cstream) |
| 738 | { |
| 739 | int ret = 0; |
| 740 | |
| 741 | if (dai->driver->cops && |
| 742 | dai->driver->cops->startup) |
| 743 | ret = dai->driver->cops->startup(cstream, dai); |
| 744 | |
| 745 | /* mark cstream if succeeded */ |
| 746 | if (ret == 0) |
| 747 | soc_dai_mark_push(dai, cstream, compr_startup); |
| 748 | |
| 749 | return soc_dai_ret(dai, ret); |
| 750 | } |
| 751 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_startup); |
| 752 | |
| 753 | void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai, |
| 754 | struct snd_compr_stream *cstream, |
| 755 | int rollback) |
| 756 | { |
| 757 | if (rollback && !soc_dai_mark_match(dai, cstream, compr_startup)) |
| 758 | return; |
| 759 | |
| 760 | if (dai->driver->cops && |
| 761 | dai->driver->cops->shutdown) |
| 762 | dai->driver->cops->shutdown(cstream, dai); |
| 763 | |
| 764 | /* remove marked cstream */ |
| 765 | soc_dai_mark_pop(dai, cstream, compr_startup); |
| 766 | } |
| 767 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_shutdown); |
| 768 | |
| 769 | int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai, |
| 770 | struct snd_compr_stream *cstream, int cmd) |
| 771 | { |
| 772 | int ret = 0; |
| 773 | |
| 774 | if (dai->driver->cops && |
| 775 | dai->driver->cops->trigger) |
| 776 | ret = dai->driver->cops->trigger(cstream, cmd, dai); |
| 777 | |
| 778 | return soc_dai_ret(dai, ret); |
| 779 | } |
| 780 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_trigger); |
| 781 | |
| 782 | int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai, |
| 783 | struct snd_compr_stream *cstream, |
| 784 | struct snd_compr_params *params) |
| 785 | { |
| 786 | int ret = 0; |
| 787 | |
| 788 | if (dai->driver->cops && |
| 789 | dai->driver->cops->set_params) |
| 790 | ret = dai->driver->cops->set_params(cstream, params, dai); |
| 791 | |
| 792 | return soc_dai_ret(dai, ret); |
| 793 | } |
| 794 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_params); |
| 795 | |
| 796 | int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai, |
| 797 | struct snd_compr_stream *cstream, |
| 798 | struct snd_codec *params) |
| 799 | { |
| 800 | int ret = 0; |
| 801 | |
| 802 | if (dai->driver->cops && |
| 803 | dai->driver->cops->get_params) |
| 804 | ret = dai->driver->cops->get_params(cstream, params, dai); |
| 805 | |
| 806 | return soc_dai_ret(dai, ret); |
| 807 | } |
| 808 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_params); |
| 809 | |
| 810 | int snd_soc_dai_compr_ack(struct snd_soc_dai *dai, |
| 811 | struct snd_compr_stream *cstream, |
| 812 | size_t bytes) |
| 813 | { |
| 814 | int ret = 0; |
| 815 | |
| 816 | if (dai->driver->cops && |
| 817 | dai->driver->cops->ack) |
| 818 | ret = dai->driver->cops->ack(cstream, bytes, dai); |
| 819 | |
| 820 | return soc_dai_ret(dai, ret); |
| 821 | } |
| 822 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_ack); |
| 823 | |
| 824 | int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai, |
| 825 | struct snd_compr_stream *cstream, |
| 826 | struct snd_compr_tstamp *tstamp) |
| 827 | { |
| 828 | int ret = 0; |
| 829 | |
| 830 | if (dai->driver->cops && |
| 831 | dai->driver->cops->pointer) |
| 832 | ret = dai->driver->cops->pointer(cstream, tstamp, dai); |
| 833 | |
| 834 | return soc_dai_ret(dai, ret); |
| 835 | } |
| 836 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_pointer); |
| 837 | |
| 838 | int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai, |
| 839 | struct snd_compr_stream *cstream, |
| 840 | struct snd_compr_metadata *metadata) |
| 841 | { |
| 842 | int ret = 0; |
| 843 | |
| 844 | if (dai->driver->cops && |
| 845 | dai->driver->cops->set_metadata) |
| 846 | ret = dai->driver->cops->set_metadata(cstream, metadata, dai); |
| 847 | |
| 848 | return soc_dai_ret(dai, ret); |
| 849 | } |
| 850 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_metadata); |
| 851 | |
| 852 | int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai, |
| 853 | struct snd_compr_stream *cstream, |
| 854 | struct snd_compr_metadata *metadata) |
| 855 | { |
| 856 | int ret = 0; |
| 857 | |
| 858 | if (dai->driver->cops && |
| 859 | dai->driver->cops->get_metadata) |
| 860 | ret = dai->driver->cops->get_metadata(cstream, metadata, dai); |
| 861 | |
| 862 | return soc_dai_ret(dai, ret); |
| 863 | } |
| 864 | EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_metadata); |