1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // 3 // This file is provided under a dual BSD/GPLv2 license. When using or 4 // redistributing this file, you may do so under either license. 5 // 6 // Copyright(c) 2018 Intel Corporation. All rights reserved. 7 // 8 // Authors: Keyon Jie <yang.jie@linux.intel.com> 9 // 10 11 #include <sound/pcm_params.h> 12 #include <sound/hdaudio_ext.h> 13 #include "../sof-priv.h" 14 #include "../sof-audio.h" 15 #include "hda.h" 16 17 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) 18 19 struct hda_pipe_params { 20 u8 host_dma_id; 21 u8 link_dma_id; 22 u32 ch; 23 u32 s_freq; 24 u32 s_fmt; 25 u8 linktype; 26 snd_pcm_format_t format; 27 int link_index; 28 int stream; 29 unsigned int host_bps; 30 unsigned int link_bps; 31 }; 32 33 /* 34 * This function checks if the host dma channel corresponding 35 * to the link DMA stream_tag argument is assigned to one 36 * of the FEs connected to the BE DAI. 37 */ 38 static bool hda_check_fes(struct snd_soc_pcm_runtime *rtd, 39 int dir, int stream_tag) 40 { 41 struct snd_pcm_substream *fe_substream; 42 struct hdac_stream *fe_hstream; 43 struct snd_soc_dpcm *dpcm; 44 45 for_each_dpcm_fe(rtd, dir, dpcm) { 46 fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, dir); 47 fe_hstream = fe_substream->runtime->private_data; 48 if (fe_hstream->stream_tag == stream_tag) 49 return true; 50 } 51 52 return false; 53 } 54 55 static struct hdac_ext_stream * 56 hda_link_stream_assign(struct hdac_bus *bus, 57 struct snd_pcm_substream *substream) 58 { 59 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 60 struct sof_intel_hda_stream *hda_stream; 61 struct hdac_ext_stream *res = NULL; 62 struct hdac_stream *stream = NULL; 63 64 int stream_dir = substream->stream; 65 66 if (!bus->ppcap) { 67 dev_err(bus->dev, "stream type not supported\n"); 68 return NULL; 69 } 70 71 list_for_each_entry(stream, &bus->stream_list, list) { 72 struct hdac_ext_stream *hstream = 73 stream_to_hdac_ext_stream(stream); 74 if (stream->direction != substream->stream) 75 continue; 76 77 hda_stream = hstream_to_sof_hda_stream(hstream); 78 79 /* check if link is available */ 80 if (!hstream->link_locked) { 81 if (stream->opened) { 82 /* 83 * check if the stream tag matches the stream 84 * tag of one of the connected FEs 85 */ 86 if (hda_check_fes(rtd, stream_dir, 87 stream->stream_tag)) { 88 res = hstream; 89 break; 90 } 91 } else { 92 res = hstream; 93 94 /* 95 * This must be a hostless stream. 96 * So reserve the host DMA channel. 97 */ 98 hda_stream->host_reserved = 1; 99 break; 100 } 101 } 102 } 103 104 if (res) { 105 /* 106 * Decouple host and link DMA. The decoupled flag 107 * is updated in snd_hdac_ext_stream_decouple(). 108 */ 109 if (!res->decoupled) 110 snd_hdac_ext_stream_decouple(bus, res, true); 111 spin_lock_irq(&bus->reg_lock); 112 res->link_locked = 1; 113 res->link_substream = substream; 114 spin_unlock_irq(&bus->reg_lock); 115 } 116 117 return res; 118 } 119 120 static int hda_link_dma_params(struct hdac_ext_stream *stream, 121 struct hda_pipe_params *params) 122 { 123 struct hdac_stream *hstream = &stream->hstream; 124 unsigned char stream_tag = hstream->stream_tag; 125 struct hdac_bus *bus = hstream->bus; 126 struct hdac_ext_link *link; 127 unsigned int format_val; 128 129 snd_hdac_ext_stream_decouple(bus, stream, true); 130 snd_hdac_ext_link_stream_reset(stream); 131 132 format_val = snd_hdac_calc_stream_format(params->s_freq, params->ch, 133 params->format, 134 params->link_bps, 0); 135 136 dev_dbg(bus->dev, "format_val=%d, rate=%d, ch=%d, format=%d\n", 137 format_val, params->s_freq, params->ch, params->format); 138 139 snd_hdac_ext_link_stream_setup(stream, format_val); 140 141 if (stream->hstream.direction == SNDRV_PCM_STREAM_PLAYBACK) { 142 list_for_each_entry(link, &bus->hlink_list, list) { 143 if (link->index == params->link_index) 144 snd_hdac_ext_link_set_stream_id(link, 145 stream_tag); 146 } 147 } 148 149 stream->link_prepared = 1; 150 151 return 0; 152 } 153 154 /* Send DAI_CONFIG IPC to the DAI that matches the dai_name and direction */ 155 static int hda_link_config_ipc(struct sof_intel_hda_stream *hda_stream, 156 const char *dai_name, int channel, int dir) 157 { 158 struct sof_ipc_dai_config *config; 159 struct snd_sof_dai *sof_dai; 160 struct sof_ipc_reply reply; 161 int ret = 0; 162 163 list_for_each_entry(sof_dai, &hda_stream->sdev->dai_list, list) { 164 if (!sof_dai->cpu_dai_name) 165 continue; 166 167 if (!strcmp(dai_name, sof_dai->cpu_dai_name) && 168 dir == sof_dai->comp_dai.direction) { 169 config = sof_dai->dai_config; 170 171 if (!config) { 172 dev_err(hda_stream->sdev->dev, 173 "error: no config for DAI %s\n", 174 sof_dai->name); 175 return -EINVAL; 176 } 177 178 /* update config with stream tag */ 179 config->hda.link_dma_ch = channel; 180 181 /* send IPC */ 182 ret = sof_ipc_tx_message(hda_stream->sdev->ipc, 183 config->hdr.cmd, 184 config, 185 config->hdr.size, 186 &reply, sizeof(reply)); 187 188 if (ret < 0) 189 dev_err(hda_stream->sdev->dev, 190 "error: failed to set dai config for %s\n", 191 sof_dai->name); 192 return ret; 193 } 194 } 195 196 return -EINVAL; 197 } 198 199 static int hda_link_hw_params(struct snd_pcm_substream *substream, 200 struct snd_pcm_hw_params *params, 201 struct snd_soc_dai *dai) 202 { 203 struct hdac_stream *hstream = substream->runtime->private_data; 204 struct hdac_bus *bus = hstream->bus; 205 struct hdac_ext_stream *link_dev; 206 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 207 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); 208 struct sof_intel_hda_stream *hda_stream; 209 struct hda_pipe_params p_params = {0}; 210 struct hdac_ext_link *link; 211 int stream_tag; 212 int ret; 213 214 /* get stored dma data if resuming from system suspend */ 215 link_dev = snd_soc_dai_get_dma_data(dai, substream); 216 if (!link_dev) { 217 link_dev = hda_link_stream_assign(bus, substream); 218 if (!link_dev) 219 return -EBUSY; 220 221 snd_soc_dai_set_dma_data(dai, substream, (void *)link_dev); 222 } 223 224 stream_tag = hdac_stream(link_dev)->stream_tag; 225 226 hda_stream = hstream_to_sof_hda_stream(link_dev); 227 228 /* update the DSP with the new tag */ 229 ret = hda_link_config_ipc(hda_stream, dai->name, stream_tag - 1, 230 substream->stream); 231 if (ret < 0) 232 return ret; 233 234 link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name); 235 if (!link) 236 return -EINVAL; 237 238 /* set the stream tag in the codec dai dma params */ 239 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 240 snd_soc_dai_set_tdm_slot(codec_dai, stream_tag, 0, 0, 0); 241 else 242 snd_soc_dai_set_tdm_slot(codec_dai, 0, stream_tag, 0, 0); 243 244 p_params.s_fmt = snd_pcm_format_width(params_format(params)); 245 p_params.ch = params_channels(params); 246 p_params.s_freq = params_rate(params); 247 p_params.stream = substream->stream; 248 p_params.link_dma_id = stream_tag - 1; 249 p_params.link_index = link->index; 250 p_params.format = params_format(params); 251 252 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 253 p_params.link_bps = codec_dai->driver->playback.sig_bits; 254 else 255 p_params.link_bps = codec_dai->driver->capture.sig_bits; 256 257 return hda_link_dma_params(link_dev, &p_params); 258 } 259 260 static int hda_link_pcm_prepare(struct snd_pcm_substream *substream, 261 struct snd_soc_dai *dai) 262 { 263 struct hdac_ext_stream *link_dev = 264 snd_soc_dai_get_dma_data(dai, substream); 265 struct snd_sof_dev *sdev = 266 snd_soc_component_get_drvdata(dai->component); 267 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 268 int stream = substream->stream; 269 270 if (link_dev->link_prepared) 271 return 0; 272 273 dev_dbg(sdev->dev, "hda: prepare stream dir %d\n", substream->stream); 274 275 return hda_link_hw_params(substream, &rtd->dpcm[stream].hw_params, 276 dai); 277 } 278 279 static int hda_link_pcm_trigger(struct snd_pcm_substream *substream, 280 int cmd, struct snd_soc_dai *dai) 281 { 282 struct hdac_ext_stream *link_dev = 283 snd_soc_dai_get_dma_data(dai, substream); 284 struct sof_intel_hda_stream *hda_stream; 285 struct snd_soc_pcm_runtime *rtd; 286 struct hdac_ext_link *link; 287 struct hdac_stream *hstream; 288 struct hdac_bus *bus; 289 int stream_tag; 290 int ret; 291 292 hstream = substream->runtime->private_data; 293 bus = hstream->bus; 294 rtd = asoc_substream_to_rtd(substream); 295 296 link = snd_hdac_ext_bus_get_link(bus, asoc_rtd_to_codec(rtd, 0)->component->name); 297 if (!link) 298 return -EINVAL; 299 300 hda_stream = hstream_to_sof_hda_stream(link_dev); 301 302 dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd); 303 switch (cmd) { 304 case SNDRV_PCM_TRIGGER_RESUME: 305 /* set up hw_params */ 306 ret = hda_link_pcm_prepare(substream, dai); 307 if (ret < 0) { 308 dev_err(dai->dev, 309 "error: setting up hw_params during resume\n"); 310 return ret; 311 } 312 313 fallthrough; 314 case SNDRV_PCM_TRIGGER_START: 315 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 316 snd_hdac_ext_link_stream_start(link_dev); 317 break; 318 case SNDRV_PCM_TRIGGER_SUSPEND: 319 case SNDRV_PCM_TRIGGER_STOP: 320 /* 321 * clear link DMA channel. It will be assigned when 322 * hw_params is set up again after resume. 323 */ 324 ret = hda_link_config_ipc(hda_stream, dai->name, 325 DMA_CHAN_INVALID, substream->stream); 326 if (ret < 0) 327 return ret; 328 329 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 330 stream_tag = hdac_stream(link_dev)->stream_tag; 331 snd_hdac_ext_link_clear_stream_id(link, stream_tag); 332 } 333 334 link_dev->link_prepared = 0; 335 336 fallthrough; 337 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 338 snd_hdac_ext_link_stream_clear(link_dev); 339 break; 340 default: 341 return -EINVAL; 342 } 343 return 0; 344 } 345 346 static int hda_link_hw_free(struct snd_pcm_substream *substream, 347 struct snd_soc_dai *dai) 348 { 349 unsigned int stream_tag; 350 struct sof_intel_hda_stream *hda_stream; 351 struct hdac_bus *bus; 352 struct hdac_ext_link *link; 353 struct hdac_stream *hstream; 354 struct snd_soc_pcm_runtime *rtd; 355 struct hdac_ext_stream *link_dev; 356 int ret; 357 358 hstream = substream->runtime->private_data; 359 bus = hstream->bus; 360 rtd = asoc_substream_to_rtd(substream); 361 link_dev = snd_soc_dai_get_dma_data(dai, substream); 362 363 if (!link_dev) { 364 dev_dbg(dai->dev, 365 "%s: link_dev is not assigned\n", __func__); 366 return -EINVAL; 367 } 368 369 hda_stream = hstream_to_sof_hda_stream(link_dev); 370 371 /* free the link DMA channel in the FW */ 372 ret = hda_link_config_ipc(hda_stream, dai->name, DMA_CHAN_INVALID, 373 substream->stream); 374 if (ret < 0) 375 return ret; 376 377 link = snd_hdac_ext_bus_get_link(bus, asoc_rtd_to_codec(rtd, 0)->component->name); 378 if (!link) 379 return -EINVAL; 380 381 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 382 stream_tag = hdac_stream(link_dev)->stream_tag; 383 snd_hdac_ext_link_clear_stream_id(link, stream_tag); 384 } 385 386 snd_soc_dai_set_dma_data(dai, substream, NULL); 387 snd_hdac_ext_stream_release(link_dev, HDAC_EXT_STREAM_TYPE_LINK); 388 link_dev->link_prepared = 0; 389 390 /* free the host DMA channel reserved by hostless streams */ 391 hda_stream->host_reserved = 0; 392 393 return 0; 394 } 395 396 static const struct snd_soc_dai_ops hda_link_dai_ops = { 397 .hw_params = hda_link_hw_params, 398 .hw_free = hda_link_hw_free, 399 .trigger = hda_link_pcm_trigger, 400 .prepare = hda_link_pcm_prepare, 401 }; 402 403 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES) 404 #include "../compress.h" 405 406 static struct snd_soc_cdai_ops sof_probe_compr_ops = { 407 .startup = sof_probe_compr_open, 408 .shutdown = sof_probe_compr_free, 409 .set_params = sof_probe_compr_set_params, 410 .trigger = sof_probe_compr_trigger, 411 .pointer = sof_probe_compr_pointer, 412 }; 413 414 #endif 415 #endif 416 417 static int ssp_dai_hw_params(struct snd_pcm_substream *substream, 418 struct snd_pcm_hw_params *params, 419 struct snd_soc_dai *dai) 420 { 421 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 422 struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME); 423 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); 424 struct sof_ipc_dai_config *config; 425 struct snd_sof_dai *sof_dai; 426 struct sof_ipc_reply reply; 427 int ret; 428 429 list_for_each_entry(sof_dai, &sdev->dai_list, list) { 430 if (!sof_dai->cpu_dai_name || !sof_dai->dai_config) 431 continue; 432 433 if (!strcmp(dai->name, sof_dai->cpu_dai_name) && 434 substream->stream == sof_dai->comp_dai.direction) { 435 config = &sof_dai->dai_config[sof_dai->current_config]; 436 437 /* send IPC */ 438 ret = sof_ipc_tx_message(sdev->ipc, config->hdr.cmd, config, 439 config->hdr.size, &reply, sizeof(reply)); 440 441 if (ret < 0) 442 dev_err(sdev->dev, "error: failed to set DAI config for %s\n", 443 sof_dai->name); 444 return ret; 445 } 446 } 447 448 return 0; 449 } 450 451 static const struct snd_soc_dai_ops ssp_dai_ops = { 452 .hw_params = ssp_dai_hw_params, 453 }; 454 455 /* 456 * common dai driver for skl+ platforms. 457 * some products who use this DAI array only physically have a subset of 458 * the DAIs, but no harm is done here by adding the whole set. 459 */ 460 struct snd_soc_dai_driver skl_dai[] = { 461 { 462 .name = "SSP0 Pin", 463 .ops = &ssp_dai_ops, 464 .playback = { 465 .channels_min = 1, 466 .channels_max = 8, 467 }, 468 .capture = { 469 .channels_min = 1, 470 .channels_max = 8, 471 }, 472 }, 473 { 474 .name = "SSP1 Pin", 475 .ops = &ssp_dai_ops, 476 .playback = { 477 .channels_min = 1, 478 .channels_max = 8, 479 }, 480 .capture = { 481 .channels_min = 1, 482 .channels_max = 8, 483 }, 484 }, 485 { 486 .name = "SSP2 Pin", 487 .ops = &ssp_dai_ops, 488 .playback = { 489 .channels_min = 1, 490 .channels_max = 8, 491 }, 492 .capture = { 493 .channels_min = 1, 494 .channels_max = 8, 495 }, 496 }, 497 { 498 .name = "SSP3 Pin", 499 .ops = &ssp_dai_ops, 500 .playback = { 501 .channels_min = 1, 502 .channels_max = 8, 503 }, 504 .capture = { 505 .channels_min = 1, 506 .channels_max = 8, 507 }, 508 }, 509 { 510 .name = "SSP4 Pin", 511 .ops = &ssp_dai_ops, 512 .playback = { 513 .channels_min = 1, 514 .channels_max = 8, 515 }, 516 .capture = { 517 .channels_min = 1, 518 .channels_max = 8, 519 }, 520 }, 521 { 522 .name = "SSP5 Pin", 523 .ops = &ssp_dai_ops, 524 .playback = { 525 .channels_min = 1, 526 .channels_max = 8, 527 }, 528 .capture = { 529 .channels_min = 1, 530 .channels_max = 8, 531 }, 532 }, 533 { 534 .name = "DMIC01 Pin", 535 .capture = { 536 .channels_min = 1, 537 .channels_max = 4, 538 }, 539 }, 540 { 541 .name = "DMIC16k Pin", 542 .capture = { 543 .channels_min = 1, 544 .channels_max = 4, 545 }, 546 }, 547 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) 548 { 549 .name = "iDisp1 Pin", 550 .ops = &hda_link_dai_ops, 551 .playback = { 552 .channels_min = 1, 553 .channels_max = 8, 554 }, 555 }, 556 { 557 .name = "iDisp2 Pin", 558 .ops = &hda_link_dai_ops, 559 .playback = { 560 .channels_min = 1, 561 .channels_max = 8, 562 }, 563 }, 564 { 565 .name = "iDisp3 Pin", 566 .ops = &hda_link_dai_ops, 567 .playback = { 568 .channels_min = 1, 569 .channels_max = 8, 570 }, 571 }, 572 { 573 .name = "iDisp4 Pin", 574 .ops = &hda_link_dai_ops, 575 .playback = { 576 .channels_min = 1, 577 .channels_max = 8, 578 }, 579 }, 580 { 581 .name = "Analog CPU DAI", 582 .ops = &hda_link_dai_ops, 583 .playback = { 584 .channels_min = 1, 585 .channels_max = 16, 586 }, 587 .capture = { 588 .channels_min = 1, 589 .channels_max = 16, 590 }, 591 }, 592 { 593 .name = "Digital CPU DAI", 594 .ops = &hda_link_dai_ops, 595 .playback = { 596 .channels_min = 1, 597 .channels_max = 16, 598 }, 599 .capture = { 600 .channels_min = 1, 601 .channels_max = 16, 602 }, 603 }, 604 { 605 .name = "Alt Analog CPU DAI", 606 .ops = &hda_link_dai_ops, 607 .playback = { 608 .channels_min = 1, 609 .channels_max = 16, 610 }, 611 .capture = { 612 .channels_min = 1, 613 .channels_max = 16, 614 }, 615 }, 616 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES) 617 { 618 .name = "Probe Extraction CPU DAI", 619 .compress_new = snd_soc_new_compress, 620 .cops = &sof_probe_compr_ops, 621 .capture = { 622 .stream_name = "Probe Extraction", 623 .channels_min = 1, 624 .channels_max = 8, 625 .rates = SNDRV_PCM_RATE_48000, 626 .rate_min = 48000, 627 .rate_max = 48000, 628 }, 629 }, 630 #endif 631 #endif 632 }; 633