1 // SPDX-License-Identifier: GPL-2.0-only 2 // Copyright(c) 2024 Advanced Micro Devices, Inc. 3 4 /* 5 * acp-sdw-legacy-mach - ASoC legacy Machine driver for AMD SoundWire platforms 6 */ 7 8 #include <linux/bitmap.h> 9 #include <linux/device.h> 10 #include <linux/dmi.h> 11 #include <linux/module.h> 12 #include <linux/soundwire/sdw.h> 13 #include <linux/soundwire/sdw_type.h> 14 #include <sound/soc.h> 15 #include <sound/soc-acpi.h> 16 #include "soc_amd_sdw_common.h" 17 #include "../../codecs/rt711.h" 18 19 static unsigned long soc_sdw_quirk = RT711_JD1; 20 static int quirk_override = -1; 21 module_param_named(quirk, quirk_override, int, 0444); 22 MODULE_PARM_DESC(quirk, "Board-specific quirk override"); 23 24 static void log_quirks(struct device *dev) 25 { 26 if (SOC_JACK_JDSRC(soc_sdw_quirk)) 27 dev_dbg(dev, "quirk realtek,jack-detect-source %ld\n", 28 SOC_JACK_JDSRC(soc_sdw_quirk)); 29 if (soc_sdw_quirk & ASOC_SDW_ACP_DMIC) 30 dev_dbg(dev, "quirk SOC_SDW_ACP_DMIC enabled\n"); 31 if (soc_sdw_quirk & ASOC_SDW_CODEC_SPKR) 32 dev_dbg(dev, "quirk ASOC_SDW_CODEC_SPKR enabled\n"); 33 } 34 35 static int soc_sdw_quirk_cb(const struct dmi_system_id *id) 36 { 37 soc_sdw_quirk = (unsigned long)id->driver_data; 38 return 1; 39 } 40 41 static const struct dmi_system_id soc_sdw_quirk_table[] = { 42 { 43 .callback = soc_sdw_quirk_cb, 44 .matches = { 45 DMI_MATCH(DMI_SYS_VENDOR, "AMD"), 46 DMI_MATCH(DMI_PRODUCT_NAME, "Birman-PHX"), 47 }, 48 .driver_data = (void *)RT711_JD2, 49 }, 50 { 51 .callback = soc_sdw_quirk_cb, 52 .matches = { 53 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"), 54 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0D80"), 55 }, 56 .driver_data = (void *)(ASOC_SDW_CODEC_SPKR), 57 }, 58 { 59 .callback = soc_sdw_quirk_cb, 60 .matches = { 61 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"), 62 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0D81"), 63 }, 64 .driver_data = (void *)(ASOC_SDW_CODEC_SPKR), 65 }, 66 { 67 .callback = soc_sdw_quirk_cb, 68 .matches = { 69 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"), 70 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0D82"), 71 }, 72 .driver_data = (void *)(ASOC_SDW_CODEC_SPKR), 73 }, 74 { 75 .callback = soc_sdw_quirk_cb, 76 .matches = { 77 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"), 78 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0D83"), 79 }, 80 .driver_data = (void *)(ASOC_SDW_CODEC_SPKR), 81 }, 82 {} 83 }; 84 85 static const struct snd_soc_ops sdw_ops = { 86 .startup = asoc_sdw_startup, 87 .prepare = asoc_sdw_prepare, 88 .trigger = asoc_sdw_trigger, 89 .hw_params = asoc_sdw_hw_params, 90 .hw_free = asoc_sdw_hw_free, 91 .shutdown = asoc_sdw_shutdown, 92 }; 93 94 static const char * const type_strings[] = {"SimpleJack", "SmartAmp", "SmartMic"}; 95 96 static int create_sdw_dailink(struct snd_soc_card *card, 97 struct asoc_sdw_dailink *soc_dai, 98 struct snd_soc_dai_link **dai_links, 99 int *be_id, struct snd_soc_codec_conf **codec_conf, 100 struct snd_soc_dai_link_component *sdw_platform_component) 101 { 102 struct device *dev = card->dev; 103 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 104 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private; 105 struct asoc_sdw_endpoint *soc_end; 106 int cpu_pin_id; 107 int stream; 108 int ret; 109 110 list_for_each_entry(soc_end, &soc_dai->endpoints, list) { 111 if (soc_end->name_prefix) { 112 (*codec_conf)->dlc.name = soc_end->codec_name; 113 (*codec_conf)->name_prefix = soc_end->name_prefix; 114 (*codec_conf)++; 115 } 116 117 if (soc_end->include_sidecar) { 118 ret = soc_end->codec_info->add_sidecar(card, dai_links, codec_conf); 119 if (ret) 120 return ret; 121 } 122 } 123 124 for_each_pcm_streams(stream) { 125 static const char * const sdw_stream_name[] = { 126 "SDW%d-PIN%d-PLAYBACK", 127 "SDW%d-PIN%d-CAPTURE", 128 "SDW%d-PIN%d-PLAYBACK-%s", 129 "SDW%d-PIN%d-CAPTURE-%s", 130 }; 131 struct snd_soc_dai_link_ch_map *codec_maps; 132 struct snd_soc_dai_link_component *codecs; 133 struct snd_soc_dai_link_component *cpus; 134 int num_cpus = hweight32(soc_dai->link_mask[stream]); 135 int num_codecs = soc_dai->num_devs[stream]; 136 int playback, capture; 137 int j = 0; 138 char *name; 139 140 if (!soc_dai->num_devs[stream]) 141 continue; 142 143 soc_end = list_first_entry(&soc_dai->endpoints, 144 struct asoc_sdw_endpoint, list); 145 146 *be_id = soc_end->dai_info->dailink[stream]; 147 if (*be_id < 0) { 148 dev_err(dev, "Invalid dailink id %d\n", *be_id); 149 return -EINVAL; 150 } 151 152 switch (amd_ctx->acp_rev) { 153 case ACP63_PCI_REV: 154 ret = get_acp63_cpu_pin_id(ffs(soc_end->link_mask - 1), 155 *be_id, &cpu_pin_id, dev); 156 if (ret) 157 return ret; 158 break; 159 case ACP70_PCI_REV: 160 case ACP71_PCI_REV: 161 ret = get_acp70_cpu_pin_id(ffs(soc_end->link_mask - 1), 162 *be_id, &cpu_pin_id, dev); 163 if (ret) 164 return ret; 165 break; 166 default: 167 return -EINVAL; 168 } 169 /* create stream name according to first link id */ 170 if (ctx->append_dai_type) { 171 name = devm_kasprintf(dev, GFP_KERNEL, 172 sdw_stream_name[stream + 2], 173 ffs(soc_end->link_mask) - 1, 174 cpu_pin_id, 175 type_strings[soc_end->dai_info->dai_type]); 176 } else { 177 name = devm_kasprintf(dev, GFP_KERNEL, 178 sdw_stream_name[stream], 179 ffs(soc_end->link_mask) - 1, 180 cpu_pin_id); 181 } 182 if (!name) 183 return -ENOMEM; 184 185 cpus = devm_kcalloc(dev, num_cpus, sizeof(*cpus), GFP_KERNEL); 186 if (!cpus) 187 return -ENOMEM; 188 189 codecs = devm_kcalloc(dev, num_codecs, sizeof(*codecs), GFP_KERNEL); 190 if (!codecs) 191 return -ENOMEM; 192 193 codec_maps = devm_kcalloc(dev, num_codecs, sizeof(*codec_maps), GFP_KERNEL); 194 if (!codec_maps) 195 return -ENOMEM; 196 197 list_for_each_entry(soc_end, &soc_dai->endpoints, list) { 198 if (!soc_end->dai_info->direction[stream]) 199 continue; 200 201 int link_num = ffs(soc_end->link_mask) - 1; 202 203 cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 204 "SDW%d Pin%d", 205 link_num, cpu_pin_id); 206 dev_dbg(dev, "cpu->dai_name:%s\n", cpus->dai_name); 207 if (!cpus->dai_name) 208 return -ENOMEM; 209 210 codec_maps[j].cpu = 0; 211 codec_maps[j].codec = j; 212 213 codecs[j].name = soc_end->codec_name; 214 codecs[j].dai_name = soc_end->dai_info->dai_name; 215 j++; 216 } 217 218 WARN_ON(j != num_codecs); 219 220 playback = (stream == SNDRV_PCM_STREAM_PLAYBACK); 221 capture = (stream == SNDRV_PCM_STREAM_CAPTURE); 222 223 asoc_sdw_init_dai_link(dev, *dai_links, be_id, name, playback, capture, 224 cpus, num_cpus, sdw_platform_component, 225 1, codecs, num_codecs, 226 0, asoc_sdw_rtd_init, &sdw_ops); 227 /* 228 * SoundWire DAILINKs use 'stream' functions and Bank Switch operations 229 * based on wait_for_completion(), tag them as 'nonatomic'. 230 */ 231 (*dai_links)->nonatomic = true; 232 (*dai_links)->ch_maps = codec_maps; 233 234 list_for_each_entry(soc_end, &soc_dai->endpoints, list) { 235 if (soc_end->dai_info->init) 236 soc_end->dai_info->init(card, *dai_links, 237 soc_end->codec_info, 238 playback); 239 } 240 241 (*dai_links)++; 242 } 243 244 return 0; 245 } 246 247 static int create_sdw_dailinks(struct snd_soc_card *card, 248 struct snd_soc_dai_link **dai_links, int *be_id, 249 struct asoc_sdw_dailink *soc_dais, 250 struct snd_soc_codec_conf **codec_conf) 251 { 252 struct device *dev = card->dev; 253 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 254 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private; 255 struct snd_soc_dai_link_component *sdw_platform_component; 256 int ret; 257 258 sdw_platform_component = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), 259 GFP_KERNEL); 260 if (!sdw_platform_component) 261 return -ENOMEM; 262 263 switch (amd_ctx->acp_rev) { 264 case ACP63_PCI_REV: 265 case ACP70_PCI_REV: 266 case ACP71_PCI_REV: 267 sdw_platform_component->name = "amd_ps_sdw_dma.0"; 268 break; 269 default: 270 return -EINVAL; 271 } 272 273 /* generate DAI links by each sdw link */ 274 while (soc_dais->initialised) { 275 int current_be_id = 0; 276 277 ret = create_sdw_dailink(card, soc_dais, dai_links, 278 ¤t_be_id, codec_conf, sdw_platform_component); 279 if (ret) 280 return ret; 281 282 /* Update the be_id to match the highest ID used for SDW link */ 283 if (*be_id < current_be_id) 284 *be_id = current_be_id; 285 286 soc_dais++; 287 } 288 289 return 0; 290 } 291 292 static int create_dmic_dailinks(struct snd_soc_card *card, 293 struct snd_soc_dai_link **dai_links, int *be_id, int no_pcm) 294 { 295 struct device *dev = card->dev; 296 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 297 struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private; 298 struct snd_soc_dai_link_component *pdm_cpu; 299 struct snd_soc_dai_link_component *pdm_platform; 300 int ret; 301 302 pdm_cpu = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL); 303 if (!pdm_cpu) 304 return -ENOMEM; 305 306 pdm_platform = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL); 307 if (!pdm_platform) 308 return -ENOMEM; 309 310 switch (amd_ctx->acp_rev) { 311 case ACP63_PCI_REV: 312 case ACP70_PCI_REV: 313 case ACP71_PCI_REV: 314 pdm_cpu->name = "acp_ps_pdm_dma.0"; 315 pdm_platform->name = "acp_ps_pdm_dma.0"; 316 break; 317 default: 318 return -EINVAL; 319 } 320 321 *be_id = ACP_DMIC_BE_ID; 322 ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, "acp-dmic-codec", 323 0, 1, // DMIC only supports capture 324 pdm_cpu->name, pdm_platform->name, 325 "dmic-codec.0", "dmic-hifi", no_pcm, 326 asoc_sdw_dmic_init, NULL); 327 if (ret) 328 return ret; 329 330 (*dai_links)++; 331 332 return 0; 333 } 334 335 static int soc_card_dai_links_create(struct snd_soc_card *card) 336 { 337 struct device *dev = card->dev; 338 struct snd_soc_acpi_mach *mach = dev_get_platdata(card->dev); 339 int sdw_be_num = 0, dmic_num = 0; 340 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 341 struct snd_soc_acpi_mach_params *mach_params = &mach->mach_params; 342 struct asoc_sdw_endpoint *soc_ends __free(kfree) = NULL; 343 struct asoc_sdw_dailink *soc_dais __free(kfree) = NULL; 344 struct snd_soc_codec_conf *codec_conf; 345 struct snd_soc_dai_link *dai_links; 346 int num_devs = 0; 347 int num_ends = 0; 348 int num_links; 349 int be_id = 0; 350 int ret; 351 352 ret = asoc_sdw_count_sdw_endpoints(card, &num_devs, &num_ends); 353 if (ret < 0) { 354 dev_err(dev, "failed to count devices/endpoints: %d\n", ret); 355 return ret; 356 } 357 358 /* One per DAI link, worst case is a DAI link for every endpoint */ 359 soc_dais = kcalloc(num_ends, sizeof(*soc_dais), GFP_KERNEL); 360 if (!soc_dais) 361 return -ENOMEM; 362 363 /* One per endpoint, ie. each DAI on each codec/amp */ 364 soc_ends = kcalloc(num_ends, sizeof(*soc_ends), GFP_KERNEL); 365 if (!soc_ends) 366 return -ENOMEM; 367 368 ret = asoc_sdw_parse_sdw_endpoints(card, soc_dais, soc_ends, &num_devs); 369 if (ret < 0) 370 return ret; 371 372 sdw_be_num = ret; 373 374 /* enable dmic */ 375 if (soc_sdw_quirk & ASOC_SDW_ACP_DMIC || mach_params->dmic_num) 376 dmic_num = 1; 377 378 dev_dbg(dev, "sdw %d, dmic %d", sdw_be_num, dmic_num); 379 380 codec_conf = devm_kcalloc(dev, num_devs, sizeof(*codec_conf), GFP_KERNEL); 381 if (!codec_conf) 382 return -ENOMEM; 383 384 /* allocate BE dailinks */ 385 num_links = sdw_be_num + dmic_num; 386 dai_links = devm_kcalloc(dev, num_links, sizeof(*dai_links), GFP_KERNEL); 387 if (!dai_links) 388 return -ENOMEM; 389 390 card->codec_conf = codec_conf; 391 card->num_configs = num_devs; 392 card->dai_link = dai_links; 393 card->num_links = num_links; 394 395 /* SDW */ 396 if (sdw_be_num) { 397 ret = create_sdw_dailinks(card, &dai_links, &be_id, 398 soc_dais, &codec_conf); 399 if (ret) 400 return ret; 401 } 402 403 /* dmic */ 404 if (dmic_num > 0) { 405 if (ctx->ignore_internal_dmic) { 406 dev_warn(dev, "Ignoring ACP DMIC\n"); 407 } else { 408 ret = create_dmic_dailinks(card, &dai_links, &be_id, 0); 409 if (ret) 410 return ret; 411 } 412 } 413 414 WARN_ON(codec_conf != card->codec_conf + card->num_configs); 415 WARN_ON(dai_links != card->dai_link + card->num_links); 416 417 return ret; 418 } 419 420 static int mc_probe(struct platform_device *pdev) 421 { 422 struct snd_soc_acpi_mach *mach = dev_get_platdata(&pdev->dev); 423 struct snd_soc_card *card; 424 struct amd_mc_ctx *amd_ctx; 425 struct asoc_sdw_mc_private *ctx; 426 int amp_num = 0, i; 427 int ret; 428 429 amd_ctx = devm_kzalloc(&pdev->dev, sizeof(*amd_ctx), GFP_KERNEL); 430 if (!amd_ctx) 431 return -ENOMEM; 432 433 amd_ctx->acp_rev = mach->mach_params.subsystem_rev; 434 amd_ctx->max_sdw_links = ACP63_SDW_MAX_LINKS; 435 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 436 if (!ctx) 437 return -ENOMEM; 438 ctx->codec_info_list_count = asoc_sdw_get_codec_info_list_count(); 439 ctx->private = amd_ctx; 440 card = &ctx->card; 441 card->dev = &pdev->dev; 442 card->name = "amd-soundwire"; 443 card->owner = THIS_MODULE; 444 card->late_probe = asoc_sdw_card_late_probe; 445 446 snd_soc_card_set_drvdata(card, ctx); 447 448 dmi_check_system(soc_sdw_quirk_table); 449 450 if (quirk_override != -1) { 451 dev_info(card->dev, "Overriding quirk 0x%lx => 0x%x\n", 452 soc_sdw_quirk, quirk_override); 453 soc_sdw_quirk = quirk_override; 454 } 455 456 log_quirks(card->dev); 457 458 ctx->mc_quirk = soc_sdw_quirk; 459 dev_dbg(card->dev, "legacy quirk 0x%lx\n", ctx->mc_quirk); 460 /* reset amp_num to ensure amp_num++ starts from 0 in each probe */ 461 for (i = 0; i < ctx->codec_info_list_count; i++) 462 codec_info_list[i].amp_num = 0; 463 464 ret = soc_card_dai_links_create(card); 465 if (ret < 0) 466 return ret; 467 468 /* 469 * the default amp_num is zero for each codec and 470 * amp_num will only be increased for active amp 471 * codecs on used platform 472 */ 473 for (i = 0; i < ctx->codec_info_list_count; i++) 474 amp_num += codec_info_list[i].amp_num; 475 476 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 477 " cfg-amp:%d", amp_num); 478 if (!card->components) 479 return -ENOMEM; 480 if (mach->mach_params.dmic_num) { 481 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 482 "%s mic:dmic cfg-mics:%d", 483 card->components, 484 mach->mach_params.dmic_num); 485 if (!card->components) 486 return -ENOMEM; 487 } 488 489 /* Register the card */ 490 ret = devm_snd_soc_register_card(card->dev, card); 491 if (ret) { 492 dev_err_probe(card->dev, ret, "snd_soc_register_card failed %d\n", ret); 493 asoc_sdw_mc_dailink_exit_loop(card); 494 return ret; 495 } 496 497 platform_set_drvdata(pdev, card); 498 499 return ret; 500 } 501 502 static void mc_remove(struct platform_device *pdev) 503 { 504 struct snd_soc_card *card = platform_get_drvdata(pdev); 505 506 asoc_sdw_mc_dailink_exit_loop(card); 507 } 508 509 static const struct platform_device_id mc_id_table[] = { 510 { "amd_sdw", }, 511 {} 512 }; 513 MODULE_DEVICE_TABLE(platform, mc_id_table); 514 515 static struct platform_driver soc_sdw_driver = { 516 .driver = { 517 .name = "amd_sdw", 518 .pm = &snd_soc_pm_ops, 519 }, 520 .probe = mc_probe, 521 .remove = mc_remove, 522 .id_table = mc_id_table, 523 }; 524 525 module_platform_driver(soc_sdw_driver); 526 527 MODULE_DESCRIPTION("ASoC AMD SoundWire Legacy Generic Machine driver"); 528 MODULE_AUTHOR("Vijendar Mukunda <Vijendar.Mukunda@amd.com>"); 529 MODULE_LICENSE("GPL"); 530 MODULE_IMPORT_NS("SND_SOC_SDW_UTILS"); 531 MODULE_IMPORT_NS("SND_SOC_AMD_SDW_MACH"); 532