1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright(c) 2015-18 Intel Corporation. 3 4 /* 5 * hdac_hda.c - ASoC extensions to reuse the legacy HDA codec drivers 6 * with ASoC platform drivers. These APIs are called by the legacy HDA 7 * codec drivers using hdac_ext_bus_ops ops. 8 */ 9 10 #include <linux/init.h> 11 #include <linux/delay.h> 12 #include <linux/module.h> 13 #include <linux/pm_runtime.h> 14 #include <sound/pcm_params.h> 15 #include <sound/soc.h> 16 #include <sound/hdaudio_ext.h> 17 #include <sound/hda_i915.h> 18 #include <sound/hda_codec.h> 19 #include <sound/hda_register.h> 20 21 #include "hdac_hda.h" 22 23 #define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ 24 SNDRV_PCM_FMTBIT_U8 | \ 25 SNDRV_PCM_FMTBIT_S16_LE | \ 26 SNDRV_PCM_FMTBIT_U16_LE | \ 27 SNDRV_PCM_FMTBIT_S24_LE | \ 28 SNDRV_PCM_FMTBIT_U24_LE | \ 29 SNDRV_PCM_FMTBIT_S32_LE | \ 30 SNDRV_PCM_FMTBIT_U32_LE | \ 31 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) 32 33 #define STUB_HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 34 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 35 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ 36 SNDRV_PCM_RATE_192000) 37 38 static int hdac_hda_dai_open(struct snd_pcm_substream *substream, 39 struct snd_soc_dai *dai); 40 static void hdac_hda_dai_close(struct snd_pcm_substream *substream, 41 struct snd_soc_dai *dai); 42 static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream, 43 struct snd_soc_dai *dai); 44 static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream, 45 struct snd_pcm_hw_params *params, 46 struct snd_soc_dai *dai); 47 static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream, 48 struct snd_soc_dai *dai); 49 static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai, 50 unsigned int tx_mask, unsigned int rx_mask, 51 int slots, int slot_width); 52 static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt, 53 struct snd_soc_dai *dai); 54 55 static const struct snd_soc_dai_ops hdac_hda_dai_ops = { 56 .startup = hdac_hda_dai_open, 57 .shutdown = hdac_hda_dai_close, 58 .prepare = hdac_hda_dai_prepare, 59 .hw_params = hdac_hda_dai_hw_params, 60 .hw_free = hdac_hda_dai_hw_free, 61 .set_tdm_slot = hdac_hda_dai_set_tdm_slot, 62 }; 63 64 static struct snd_soc_dai_driver hdac_hda_dais[] = { 65 { 66 .id = HDAC_ANALOG_DAI_ID, 67 .name = "Analog Codec DAI", 68 .ops = &hdac_hda_dai_ops, 69 .playback = { 70 .stream_name = "Analog Codec Playback", 71 .channels_min = 1, 72 .channels_max = 16, 73 .rates = SNDRV_PCM_RATE_8000_192000, 74 .formats = STUB_FORMATS, 75 .sig_bits = 24, 76 }, 77 .capture = { 78 .stream_name = "Analog Codec Capture", 79 .channels_min = 1, 80 .channels_max = 16, 81 .rates = SNDRV_PCM_RATE_8000_192000, 82 .formats = STUB_FORMATS, 83 .sig_bits = 24, 84 }, 85 }, 86 { 87 .id = HDAC_DIGITAL_DAI_ID, 88 .name = "Digital Codec DAI", 89 .ops = &hdac_hda_dai_ops, 90 .playback = { 91 .stream_name = "Digital Codec Playback", 92 .channels_min = 1, 93 .channels_max = 16, 94 .rates = SNDRV_PCM_RATE_8000_192000, 95 .formats = STUB_FORMATS, 96 .sig_bits = 24, 97 }, 98 .capture = { 99 .stream_name = "Digital Codec Capture", 100 .channels_min = 1, 101 .channels_max = 16, 102 .rates = SNDRV_PCM_RATE_8000_192000, 103 .formats = STUB_FORMATS, 104 .sig_bits = 24, 105 }, 106 }, 107 { 108 .id = HDAC_ALT_ANALOG_DAI_ID, 109 .name = "Alt Analog Codec DAI", 110 .ops = &hdac_hda_dai_ops, 111 .playback = { 112 .stream_name = "Alt Analog Codec Playback", 113 .channels_min = 1, 114 .channels_max = 16, 115 .rates = SNDRV_PCM_RATE_8000_192000, 116 .formats = STUB_FORMATS, 117 .sig_bits = 24, 118 }, 119 .capture = { 120 .stream_name = "Alt Analog Codec Capture", 121 .channels_min = 1, 122 .channels_max = 16, 123 .rates = SNDRV_PCM_RATE_8000_192000, 124 .formats = STUB_FORMATS, 125 .sig_bits = 24, 126 }, 127 }, 128 { 129 .id = HDAC_HDMI_0_DAI_ID, 130 .name = "intel-hdmi-hifi1", 131 .ops = &hdac_hda_dai_ops, 132 .playback = { 133 .stream_name = "hifi1", 134 .channels_min = 1, 135 .channels_max = 32, 136 .rates = STUB_HDMI_RATES, 137 .formats = STUB_FORMATS, 138 .sig_bits = 24, 139 }, 140 }, 141 { 142 .id = HDAC_HDMI_1_DAI_ID, 143 .name = "intel-hdmi-hifi2", 144 .ops = &hdac_hda_dai_ops, 145 .playback = { 146 .stream_name = "hifi2", 147 .channels_min = 1, 148 .channels_max = 32, 149 .rates = STUB_HDMI_RATES, 150 .formats = STUB_FORMATS, 151 .sig_bits = 24, 152 }, 153 }, 154 { 155 .id = HDAC_HDMI_2_DAI_ID, 156 .name = "intel-hdmi-hifi3", 157 .ops = &hdac_hda_dai_ops, 158 .playback = { 159 .stream_name = "hifi3", 160 .channels_min = 1, 161 .channels_max = 32, 162 .rates = STUB_HDMI_RATES, 163 .formats = STUB_FORMATS, 164 .sig_bits = 24, 165 }, 166 }, 167 { 168 .id = HDAC_HDMI_3_DAI_ID, 169 .name = "intel-hdmi-hifi4", 170 .ops = &hdac_hda_dai_ops, 171 .playback = { 172 .stream_name = "hifi4", 173 .channels_min = 1, 174 .channels_max = 32, 175 .rates = STUB_HDMI_RATES, 176 .formats = STUB_FORMATS, 177 .sig_bits = 24, 178 }, 179 }, 180 181 }; 182 183 static int hdac_hda_dai_set_tdm_slot(struct snd_soc_dai *dai, 184 unsigned int tx_mask, unsigned int rx_mask, 185 int slots, int slot_width) 186 { 187 struct snd_soc_component *component = dai->component; 188 struct hdac_hda_priv *hda_pvt; 189 struct hdac_hda_pcm *pcm; 190 191 hda_pvt = snd_soc_component_get_drvdata(component); 192 pcm = &hda_pvt->pcm[dai->id]; 193 194 if (tx_mask) 195 pcm->stream_tag[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask; 196 else 197 pcm->stream_tag[SNDRV_PCM_STREAM_CAPTURE] = rx_mask; 198 199 return 0; 200 } 201 202 static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream, 203 struct snd_pcm_hw_params *params, 204 struct snd_soc_dai *dai) 205 { 206 struct snd_soc_component *component = dai->component; 207 struct hdac_hda_priv *hda_pvt; 208 unsigned int format_val; 209 unsigned int maxbps; 210 211 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 212 maxbps = dai->driver->playback.sig_bits; 213 else 214 maxbps = dai->driver->capture.sig_bits; 215 216 hda_pvt = snd_soc_component_get_drvdata(component); 217 format_val = snd_hdac_calc_stream_format(params_rate(params), 218 params_channels(params), 219 params_format(params), 220 maxbps, 221 0); 222 if (!format_val) { 223 dev_err(dai->dev, 224 "invalid format_val, rate=%d, ch=%d, format=%d, maxbps=%d\n", 225 params_rate(params), params_channels(params), 226 params_format(params), maxbps); 227 228 return -EINVAL; 229 } 230 231 hda_pvt->pcm[dai->id].format_val[substream->stream] = format_val; 232 return 0; 233 } 234 235 static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream, 236 struct snd_soc_dai *dai) 237 { 238 struct snd_soc_component *component = dai->component; 239 struct hdac_hda_priv *hda_pvt; 240 struct hda_pcm_stream *hda_stream; 241 struct hda_pcm *pcm; 242 243 hda_pvt = snd_soc_component_get_drvdata(component); 244 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai); 245 if (!pcm) 246 return -EINVAL; 247 248 hda_stream = &pcm->stream[substream->stream]; 249 snd_hda_codec_cleanup(&hda_pvt->codec, hda_stream, substream); 250 251 return 0; 252 } 253 254 static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream, 255 struct snd_soc_dai *dai) 256 { 257 struct snd_soc_component *component = dai->component; 258 struct hda_pcm_stream *hda_stream; 259 struct hdac_hda_priv *hda_pvt; 260 struct hdac_device *hdev; 261 unsigned int format_val; 262 struct hda_pcm *pcm; 263 unsigned int stream; 264 int ret = 0; 265 266 hda_pvt = snd_soc_component_get_drvdata(component); 267 hdev = &hda_pvt->codec.core; 268 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai); 269 if (!pcm) 270 return -EINVAL; 271 272 hda_stream = &pcm->stream[substream->stream]; 273 274 stream = hda_pvt->pcm[dai->id].stream_tag[substream->stream]; 275 format_val = hda_pvt->pcm[dai->id].format_val[substream->stream]; 276 277 ret = snd_hda_codec_prepare(&hda_pvt->codec, hda_stream, 278 stream, format_val, substream); 279 if (ret < 0) 280 dev_err(&hdev->dev, "codec prepare failed %d\n", ret); 281 282 return ret; 283 } 284 285 static int hdac_hda_dai_open(struct snd_pcm_substream *substream, 286 struct snd_soc_dai *dai) 287 { 288 struct snd_soc_component *component = dai->component; 289 struct hdac_hda_priv *hda_pvt; 290 struct hda_pcm_stream *hda_stream; 291 struct hda_pcm *pcm; 292 int ret; 293 294 hda_pvt = snd_soc_component_get_drvdata(component); 295 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai); 296 if (!pcm) 297 return -EINVAL; 298 299 snd_hda_codec_pcm_get(pcm); 300 301 hda_stream = &pcm->stream[substream->stream]; 302 303 ret = hda_stream->ops.open(hda_stream, &hda_pvt->codec, substream); 304 if (ret < 0) 305 snd_hda_codec_pcm_put(pcm); 306 307 return ret; 308 } 309 310 static void hdac_hda_dai_close(struct snd_pcm_substream *substream, 311 struct snd_soc_dai *dai) 312 { 313 struct snd_soc_component *component = dai->component; 314 struct hdac_hda_priv *hda_pvt; 315 struct hda_pcm_stream *hda_stream; 316 struct hda_pcm *pcm; 317 318 hda_pvt = snd_soc_component_get_drvdata(component); 319 pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai); 320 if (!pcm) 321 return; 322 323 hda_stream = &pcm->stream[substream->stream]; 324 325 hda_stream->ops.close(hda_stream, &hda_pvt->codec, substream); 326 327 snd_hda_codec_pcm_put(pcm); 328 } 329 330 static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt, 331 struct snd_soc_dai *dai) 332 { 333 struct hda_codec *hcodec = &hda_pvt->codec; 334 struct hda_pcm *cpcm; 335 const char *pcm_name; 336 337 /* 338 * map DAI ID to the closest matching PCM name, using the naming 339 * scheme used by hda-codec snd_hda_gen_build_pcms() and for 340 * HDMI in hda_codec patch_hdmi.c) 341 */ 342 343 switch (dai->id) { 344 case HDAC_ANALOG_DAI_ID: 345 pcm_name = "Analog"; 346 break; 347 case HDAC_DIGITAL_DAI_ID: 348 pcm_name = "Digital"; 349 break; 350 case HDAC_ALT_ANALOG_DAI_ID: 351 pcm_name = "Alt Analog"; 352 break; 353 case HDAC_HDMI_0_DAI_ID: 354 pcm_name = "HDMI 0"; 355 break; 356 case HDAC_HDMI_1_DAI_ID: 357 pcm_name = "HDMI 1"; 358 break; 359 case HDAC_HDMI_2_DAI_ID: 360 pcm_name = "HDMI 2"; 361 break; 362 case HDAC_HDMI_3_DAI_ID: 363 pcm_name = "HDMI 3"; 364 break; 365 default: 366 dev_err(&hcodec->core.dev, "invalid dai id %d\n", dai->id); 367 return NULL; 368 } 369 370 list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) { 371 if (strstr(cpcm->name, pcm_name)) 372 return cpcm; 373 } 374 375 dev_err(&hcodec->core.dev, "didn't find PCM for DAI %s\n", dai->name); 376 return NULL; 377 } 378 379 static bool is_hdmi_codec(struct hda_codec *hcodec) 380 { 381 struct hda_pcm *cpcm; 382 383 list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) { 384 if (cpcm->pcm_type == HDA_PCM_TYPE_HDMI) 385 return true; 386 } 387 388 return false; 389 } 390 391 static int hdac_hda_codec_probe(struct snd_soc_component *component) 392 { 393 struct hdac_hda_priv *hda_pvt = 394 snd_soc_component_get_drvdata(component); 395 struct snd_soc_dapm_context *dapm = 396 snd_soc_component_get_dapm(component); 397 struct hdac_device *hdev = &hda_pvt->codec.core; 398 struct hda_codec *hcodec = &hda_pvt->codec; 399 struct hdac_ext_link *hlink; 400 hda_codec_patch_t patch; 401 int ret; 402 403 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev)); 404 if (!hlink) { 405 dev_err(&hdev->dev, "hdac link not found\n"); 406 return -EIO; 407 } 408 409 snd_hdac_ext_bus_link_get(hdev->bus, hlink); 410 411 /* 412 * Ensure any HDA display is powered at codec probe. 413 * After snd_hda_codec_device_new(), display power is 414 * managed by runtime PM. 415 */ 416 if (hda_pvt->need_display_power) 417 snd_hdac_display_power(hdev->bus, 418 HDA_CODEC_IDX_CONTROLLER, true); 419 420 ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card, 421 hdev->addr, hcodec); 422 if (ret < 0) { 423 dev_err(&hdev->dev, "failed to create hda codec %d\n", ret); 424 goto error_no_pm; 425 } 426 /* 427 * Overwrite type to HDA_DEV_ASOC since it is a ASoC driver 428 * hda_codec.c will check this flag to determine if unregister 429 * device is needed. 430 */ 431 hdev->type = HDA_DEV_ASOC; 432 433 /* 434 * snd_hda_codec_device_new decrements the usage count so call get pm 435 * else the device will be powered off 436 */ 437 pm_runtime_get_noresume(&hdev->dev); 438 439 hcodec->bus->card = dapm->card->snd_card; 440 441 ret = snd_hda_codec_set_name(hcodec, hcodec->preset->name); 442 if (ret < 0) { 443 dev_err(&hdev->dev, "name failed %s\n", hcodec->preset->name); 444 goto error_pm; 445 } 446 447 ret = snd_hdac_regmap_init(&hcodec->core); 448 if (ret < 0) { 449 dev_err(&hdev->dev, "regmap init failed\n"); 450 goto error_pm; 451 } 452 453 patch = (hda_codec_patch_t)hcodec->preset->driver_data; 454 if (patch) { 455 ret = patch(hcodec); 456 if (ret < 0) { 457 dev_err(&hdev->dev, "patch failed %d\n", ret); 458 goto error_regmap; 459 } 460 } else { 461 dev_dbg(&hdev->dev, "no patch file found\n"); 462 } 463 464 /* configure codec for 1:1 PCM:DAI mapping */ 465 hcodec->mst_no_extra_pcms = 1; 466 467 ret = snd_hda_codec_parse_pcms(hcodec); 468 if (ret < 0) { 469 dev_err(&hdev->dev, "unable to map pcms to dai %d\n", ret); 470 goto error_regmap; 471 } 472 473 /* HDMI controls need to be created in machine drivers */ 474 if (!is_hdmi_codec(hcodec)) { 475 ret = snd_hda_codec_build_controls(hcodec); 476 if (ret < 0) { 477 dev_err(&hdev->dev, "unable to create controls %d\n", 478 ret); 479 goto error_regmap; 480 } 481 } 482 483 hcodec->core.lazy_cache = true; 484 485 if (hda_pvt->need_display_power) 486 snd_hdac_display_power(hdev->bus, 487 HDA_CODEC_IDX_CONTROLLER, false); 488 489 /* 490 * hdac_device core already sets the state to active and calls 491 * get_noresume. So enable runtime and set the device to suspend. 492 * pm_runtime_enable is also called during codec registeration 493 */ 494 pm_runtime_put(&hdev->dev); 495 pm_runtime_suspend(&hdev->dev); 496 497 return 0; 498 499 error_regmap: 500 snd_hdac_regmap_exit(hdev); 501 error_pm: 502 pm_runtime_put(&hdev->dev); 503 error_no_pm: 504 snd_hdac_ext_bus_link_put(hdev->bus, hlink); 505 return ret; 506 } 507 508 static void hdac_hda_codec_remove(struct snd_soc_component *component) 509 { 510 struct hdac_hda_priv *hda_pvt = 511 snd_soc_component_get_drvdata(component); 512 struct hdac_device *hdev = &hda_pvt->codec.core; 513 struct hdac_ext_link *hlink = NULL; 514 515 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev)); 516 if (!hlink) { 517 dev_err(&hdev->dev, "hdac link not found\n"); 518 return; 519 } 520 521 pm_runtime_disable(&hdev->dev); 522 snd_hdac_ext_bus_link_put(hdev->bus, hlink); 523 524 snd_hdac_regmap_exit(hdev); 525 } 526 527 static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = { 528 {"AIF1TX", NULL, "Codec Input Pin1"}, 529 {"AIF2TX", NULL, "Codec Input Pin2"}, 530 {"AIF3TX", NULL, "Codec Input Pin3"}, 531 532 {"Codec Output Pin1", NULL, "AIF1RX"}, 533 {"Codec Output Pin2", NULL, "AIF2RX"}, 534 {"Codec Output Pin3", NULL, "AIF3RX"}, 535 }; 536 537 static const struct snd_soc_dapm_widget hdac_hda_dapm_widgets[] = { 538 /* Audio Interface */ 539 SND_SOC_DAPM_AIF_IN("AIF1RX", "Analog Codec Playback", 0, 540 SND_SOC_NOPM, 0, 0), 541 SND_SOC_DAPM_AIF_IN("AIF2RX", "Digital Codec Playback", 0, 542 SND_SOC_NOPM, 0, 0), 543 SND_SOC_DAPM_AIF_IN("AIF3RX", "Alt Analog Codec Playback", 0, 544 SND_SOC_NOPM, 0, 0), 545 SND_SOC_DAPM_AIF_OUT("AIF1TX", "Analog Codec Capture", 0, 546 SND_SOC_NOPM, 0, 0), 547 SND_SOC_DAPM_AIF_OUT("AIF2TX", "Digital Codec Capture", 0, 548 SND_SOC_NOPM, 0, 0), 549 SND_SOC_DAPM_AIF_OUT("AIF3TX", "Alt Analog Codec Capture", 0, 550 SND_SOC_NOPM, 0, 0), 551 552 /* Input Pins */ 553 SND_SOC_DAPM_INPUT("Codec Input Pin1"), 554 SND_SOC_DAPM_INPUT("Codec Input Pin2"), 555 SND_SOC_DAPM_INPUT("Codec Input Pin3"), 556 557 /* Output Pins */ 558 SND_SOC_DAPM_OUTPUT("Codec Output Pin1"), 559 SND_SOC_DAPM_OUTPUT("Codec Output Pin2"), 560 SND_SOC_DAPM_OUTPUT("Codec Output Pin3"), 561 }; 562 563 static const struct snd_soc_component_driver hdac_hda_codec = { 564 .probe = hdac_hda_codec_probe, 565 .remove = hdac_hda_codec_remove, 566 .idle_bias_on = false, 567 .dapm_widgets = hdac_hda_dapm_widgets, 568 .num_dapm_widgets = ARRAY_SIZE(hdac_hda_dapm_widgets), 569 .dapm_routes = hdac_hda_dapm_routes, 570 .num_dapm_routes = ARRAY_SIZE(hdac_hda_dapm_routes), 571 }; 572 573 static int hdac_hda_dev_probe(struct hdac_device *hdev) 574 { 575 struct hdac_ext_link *hlink; 576 struct hdac_hda_priv *hda_pvt; 577 int ret; 578 579 /* hold the ref while we probe */ 580 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev)); 581 if (!hlink) { 582 dev_err(&hdev->dev, "hdac link not found\n"); 583 return -EIO; 584 } 585 snd_hdac_ext_bus_link_get(hdev->bus, hlink); 586 587 hda_pvt = hdac_to_hda_priv(hdev); 588 if (!hda_pvt) 589 return -ENOMEM; 590 591 /* ASoC specific initialization */ 592 ret = devm_snd_soc_register_component(&hdev->dev, 593 &hdac_hda_codec, hdac_hda_dais, 594 ARRAY_SIZE(hdac_hda_dais)); 595 if (ret < 0) { 596 dev_err(&hdev->dev, "failed to register HDA codec %d\n", ret); 597 return ret; 598 } 599 600 dev_set_drvdata(&hdev->dev, hda_pvt); 601 snd_hdac_ext_bus_link_put(hdev->bus, hlink); 602 603 return ret; 604 } 605 606 static int hdac_hda_dev_remove(struct hdac_device *hdev) 607 { 608 struct hdac_hda_priv *hda_pvt; 609 610 hda_pvt = dev_get_drvdata(&hdev->dev); 611 if (hda_pvt && hda_pvt->codec.registered) 612 cancel_delayed_work_sync(&hda_pvt->codec.jackpoll_work); 613 614 return 0; 615 } 616 617 static struct hdac_ext_bus_ops hdac_ops = { 618 .hdev_attach = hdac_hda_dev_probe, 619 .hdev_detach = hdac_hda_dev_remove, 620 }; 621 622 struct hdac_ext_bus_ops *snd_soc_hdac_hda_get_ops(void) 623 { 624 return &hdac_ops; 625 } 626 EXPORT_SYMBOL_GPL(snd_soc_hdac_hda_get_ops); 627 628 MODULE_LICENSE("GPL v2"); 629 MODULE_DESCRIPTION("ASoC Extensions for legacy HDA Drivers"); 630 MODULE_AUTHOR("Rakesh Ughreja<rakesh.a.ughreja@intel.com>"); 631