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