sound/hda/intel-dsp-config.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2019 Jaroslav Kysela <perex@perex.cz>
   3
   4 #include <linux/acpi.h>
   5 #include <linux/bits.h>
   6 #include <linux/dmi.h>
   7 #include <linux/module.h>
   8 #include <linux/pci.h>
   9 #include <linux/soundwire/sdw.h>
  10 #include <linux/soundwire/sdw_intel.h>
  11 #include <sound/core.h>
  12 #include <sound/intel-dsp-config.h>
  13 #include <sound/intel-nhlt.h>
  14 #include <sound/soc-acpi.h>
  15
  16 static int dsp_driver;
  17
  18 module_param(dsp_driver, int, 0444);
  19 MODULE_PARM_DESC(dsp_driver, "Force the DSP driver for Intel DSP (0=auto, 1=legacy, 2=SST, 3=SOF)");
  20
  21 #define FLAG_SST                        BIT(0)
  22 #define FLAG_SOF                        BIT(1)
  23 #define FLAG_SST_ONLY_IF_DMIC           BIT(15)
  24 #define FLAG_SOF_ONLY_IF_DMIC           BIT(16)
  25 #define FLAG_SOF_ONLY_IF_SOUNDWIRE      BIT(17)
  26
  27 #define FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE (FLAG_SOF_ONLY_IF_DMIC | \
  28                                             FLAG_SOF_ONLY_IF_SOUNDWIRE)
  29
  30 struct config_entry {
  31         u32 flags;
  32         u16 device;
  33         u8 acpi_hid[ACPI_ID_LEN];
  34         const struct dmi_system_id *dmi_table;
  35         const struct snd_soc_acpi_codecs *codec_hid;
  36 };
  37
  38 static const struct snd_soc_acpi_codecs __maybe_unused essx_83x6 = {
  39         .num_codecs = 3,
  40         .codecs = { "ESSX8316", "ESSX8326", "ESSX8336"},
  41 };
  42
  43 /*
  44  * configuration table
  45  * - the order of similar PCI ID entries is important!
  46  * - the first successful match will win
  47  */
  48 static const struct config_entry config_table[] = {
  49 /* Merrifield */
  50 #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
  51         {
  52                 .flags = FLAG_SOF,
  53                 .device = PCI_DEVICE_ID_INTEL_SST_TNG,
  54         },
  55 #endif
  56 /*
  57  * Apollolake (Broxton-P)
  58  * the legacy HDAudio driver is used except on Up Squared (SOF) and
  59  * Chromebooks (SST), as well as devices based on the ES8336 codec
  60  */
  61 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
  62         {
  63                 .flags = FLAG_SOF,
  64                 .device = PCI_DEVICE_ID_INTEL_HDA_APL,
  65                 .dmi_table = (const struct dmi_system_id []) {
  66                         {
  67                                 .ident = "Up Squared",
  68                                 .matches = {
  69                                         DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
  70                                         DMI_MATCH(DMI_BOARD_NAME, "UP-APL01"),
  71                                 }
  72                         },
  73                         {}
  74                 }
  75         },
  76         {
  77                 .flags = FLAG_SOF,
  78                 .device = PCI_DEVICE_ID_INTEL_HDA_APL,
  79                 .codec_hid =  &essx_83x6,
  80         },
  81 #endif
  82 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_APL)
  83         {
  84                 .flags = FLAG_SST,
  85                 .device = PCI_DEVICE_ID_INTEL_HDA_APL,
  86                 .dmi_table = (const struct dmi_system_id []) {
  87                         {
  88                                 .ident = "Google Chromebooks",
  89                                 .matches = {
  90                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
  91                                 }
  92                         },
  93                         {}
  94                 }
  95         },
  96 #endif
  97 /*
  98  * Skylake and Kabylake use legacy HDAudio driver except for Google
  99  * Chromebooks (SST)
 100  */
 101
 102 /* Sunrise Point-LP */
 103 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_SKL)
 104         {
 105                 .flags = FLAG_SST,
 106                 .device = PCI_DEVICE_ID_INTEL_HDA_SKL_LP,
 107                 .dmi_table = (const struct dmi_system_id []) {
 108                         {
 109                                 .ident = "Google Chromebooks",
 110                                 .matches = {
 111                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 112                                 }
 113                         },
 114                         {}
 115                 }
 116         },
 117         {
 118                 .flags = FLAG_SST | FLAG_SST_ONLY_IF_DMIC,
 119                 .device = PCI_DEVICE_ID_INTEL_HDA_SKL_LP,
 120         },
 121 #endif
 122 /* Kabylake-LP */
 123 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_KBL)
 124         {
 125                 .flags = FLAG_SST,
 126                 .device = PCI_DEVICE_ID_INTEL_HDA_KBL_LP,
 127                 .dmi_table = (const struct dmi_system_id []) {
 128                         {
 129                                 .ident = "Google Chromebooks",
 130                                 .matches = {
 131                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 132                                 }
 133                         },
 134                         {}
 135                 }
 136         },
 137         {
 138                 .flags = FLAG_SST | FLAG_SST_ONLY_IF_DMIC,
 139                 .device = PCI_DEVICE_ID_INTEL_HDA_KBL_LP,
 140         },
 141 #endif
 142
 143 /*
 144  * Geminilake uses legacy HDAudio driver except for Google
 145  * Chromebooks and devices based on the ES8336 codec
 146  */
 147 /* Geminilake */
 148 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
 149         {
 150                 .flags = FLAG_SOF,
 151                 .device = PCI_DEVICE_ID_INTEL_HDA_GML,
 152                 .dmi_table = (const struct dmi_system_id []) {
 153                         {
 154                                 .ident = "Google Chromebooks",
 155                                 .matches = {
 156                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 157                                 }
 158                         },
 159                         {}
 160                 }
 161         },
 162         {
 163                 .flags = FLAG_SOF,
 164                 .device = PCI_DEVICE_ID_INTEL_HDA_GML,
 165                 .codec_hid =  &essx_83x6,
 166         },
 167 #endif
 168
 169 /*
 170  * CoffeeLake, CannonLake, CometLake, IceLake, TigerLake, AlderLake,
 171  * RaptorLake use legacy HDAudio driver except for Google Chromebooks
 172  * and when DMICs are present. Two cases are required since Coreboot
 173  * does not expose NHLT tables.
 174  *
 175  * When the Chromebook quirk is not present, it's based on information
 176  * that no such device exists. When the quirk is present, it could be
 177  * either based on product information or a placeholder.
 178  */
 179
 180 /* Cannonlake */
 181 #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
 182         {
 183                 .flags = FLAG_SOF,
 184                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_LP,
 185                 .dmi_table = (const struct dmi_system_id []) {
 186                         {
 187                                 .ident = "Google Chromebooks",
 188                                 .matches = {
 189                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 190                                 }
 191                         },
 192                         {
 193                                 .ident = "UP-WHL",
 194                                 .matches = {
 195                                         DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
 196                                 }
 197                         },
 198                         {}
 199                 }
 200         },
 201         {
 202                 .flags = FLAG_SOF,
 203                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_LP,
 204                 .codec_hid =  &essx_83x6,
 205         },
 206         {
 207                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 208                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_LP,
 209         },
 210 #endif
 211
 212 /* Coffelake */
 213 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
 214         {
 215                 .flags = FLAG_SOF,
 216                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_H,
 217                 .dmi_table = (const struct dmi_system_id []) {
 218                         {
 219                                 .ident = "Google Chromebooks",
 220                                 .matches = {
 221                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 222                                 }
 223                         },
 224                         {}
 225                 }
 226         },
 227         {
 228                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 229                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_H,
 230         },
 231 #endif
 232
 233 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
 234 /* Cometlake-LP */
 235         {
 236                 .flags = FLAG_SOF,
 237                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_LP,
 238                 .dmi_table = (const struct dmi_system_id []) {
 239                         {
 240                                 .ident = "Google Chromebooks",
 241                                 .matches = {
 242                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 243                                 }
 244                         },
 245                         {
 246                                 .matches = {
 247                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 248                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "09C6")
 249                                 },
 250                         },
 251                         {
 252                                 /* early version of SKU 09C6 */
 253                                 .matches = {
 254                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 255                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0983")
 256                                 },
 257                         },
 258                         {}
 259                 }
 260         },
 261         {
 262                 .flags = FLAG_SOF,
 263                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_LP,
 264                 .codec_hid =  &essx_83x6,
 265         },
 266         {
 267                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 268                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_LP,
 269         },
 270 /* Cometlake-H */
 271         {
 272                 .flags = FLAG_SOF,
 273                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_H,
 274                 .dmi_table = (const struct dmi_system_id []) {
 275                         {
 276                                 .matches = {
 277                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 278                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "098F"),
 279                                 },
 280                         },
 281                         {
 282                                 .matches = {
 283                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 284                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0990"),
 285                                 },
 286                         },
 287                         {}
 288                 }
 289         },
 290         {
 291                 .flags = FLAG_SOF,
 292                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_H,
 293                 .codec_hid =  &essx_83x6,
 294         },
 295         {
 296                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 297                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_H,
 298         },
 299 #endif
 300
 301 /* Icelake */
 302 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
 303         {
 304                 .flags = FLAG_SOF,
 305                 .device = PCI_DEVICE_ID_INTEL_HDA_ICL_LP,
 306                 .dmi_table = (const struct dmi_system_id []) {
 307                         {
 308                                 .ident = "Google Chromebooks",
 309                                 .matches = {
 310                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 311                                 }
 312                         },
 313                         {}
 314                 }
 315         },
 316         {
 317                 .flags = FLAG_SOF,
 318                 .device = PCI_DEVICE_ID_INTEL_HDA_ICL_LP,
 319                 .codec_hid =  &essx_83x6,
 320         },
 321         {
 322                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 323                 .device = PCI_DEVICE_ID_INTEL_HDA_ICL_LP,
 324         },
 325 #endif
 326
 327 /* Jasper Lake */
 328 #if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
 329         {
 330                 .flags = FLAG_SOF,
 331                 .device = PCI_DEVICE_ID_INTEL_HDA_JSL_N,
 332                 .dmi_table = (const struct dmi_system_id []) {
 333                         {
 334                                 .ident = "Google Chromebooks",
 335                                 .matches = {
 336                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 337                                 }
 338                         },
 339                         {
 340                                 .ident = "Google firmware",
 341                                 .matches = {
 342                                         DMI_MATCH(DMI_BIOS_VERSION, "Google"),
 343                                 }
 344                         },
 345                         {}
 346                 }
 347         },
 348         {
 349                 .flags = FLAG_SOF,
 350                 .device = PCI_DEVICE_ID_INTEL_HDA_JSL_N,
 351                 .codec_hid =  &essx_83x6,
 352         },
 353         {
 354                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 355                 .device = PCI_DEVICE_ID_INTEL_HDA_JSL_N,
 356         },
 357 #endif
 358
 359 /* Tigerlake */
 360 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
 361         {
 362                 .flags = FLAG_SOF,
 363                 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP,
 364                 .dmi_table = (const struct dmi_system_id []) {
 365                         {
 366                                 .ident = "Google Chromebooks",
 367                                 .matches = {
 368                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 369                                 }
 370                         },
 371                         {
 372                                 .ident = "UPX-TGL",
 373                                 .matches = {
 374                                         DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
 375                                 }
 376                         },
 377                         {}
 378                 }
 379         },
 380         {
 381                 .flags = FLAG_SOF,
 382                 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP,
 383                 .codec_hid =  &essx_83x6,
 384         },
 385         {
 386                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 387                 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP,
 388         },
 389         {
 390                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 391                 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_H,
 392         },
 393 #endif
 394
 395 /* Elkhart Lake */
 396 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
 397         {
 398                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 399                 .device = PCI_DEVICE_ID_INTEL_HDA_EHL_0,
 400         },
 401         {
 402                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 403                 .device = PCI_DEVICE_ID_INTEL_HDA_EHL_3,
 404         },
 405 #endif
 406
 407 /* Alder Lake / Raptor Lake */
 408 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ALDERLAKE)
 409         {
 410                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 411                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_S,
 412         },
 413         {
 414                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 415                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_S,
 416         },
 417         {
 418                 .flags = FLAG_SOF,
 419                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_P,
 420                 .dmi_table = (const struct dmi_system_id []) {
 421                         {
 422                                 .ident = "Google Chromebooks",
 423                                 .matches = {
 424                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 425                                 }
 426                         },
 427                         {}
 428                 }
 429         },
 430         {
 431                 .flags = FLAG_SOF,
 432                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_P,
 433                 .codec_hid =  &essx_83x6,
 434         },
 435         {
 436                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 437                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_P,
 438         },
 439         {
 440                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 441                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PX,
 442         },
 443         {
 444                 .flags = FLAG_SOF,
 445                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PS,
 446                 .codec_hid =  &essx_83x6,
 447         },
 448         {
 449                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 450                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PS,
 451         },
 452         {
 453                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 454                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_M,
 455         },
 456         {
 457                 .flags = FLAG_SOF,
 458                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_N,
 459                 .dmi_table = (const struct dmi_system_id []) {
 460                         {
 461                                 .ident = "Google Chromebooks",
 462                                 .matches = {
 463                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 464                                 }
 465                         },
 466                         {}
 467                 }
 468         },
 469         {
 470                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 471                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_N,
 472         },
 473         {
 474                 .flags = FLAG_SOF,
 475                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_P_0,
 476                 .dmi_table = (const struct dmi_system_id []) {
 477                         {
 478                                 .ident = "Google Chromebooks",
 479                                 .matches = {
 480                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 481                                 }
 482                         },
 483                         {}
 484                 }
 485         },
 486         {
 487                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 488                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_P_0,
 489         },
 490         {
 491                 .flags = FLAG_SOF,
 492                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_P_1,
 493                 .dmi_table = (const struct dmi_system_id []) {
 494                         {
 495                                 .ident = "Google Chromebooks",
 496                                 .matches = {
 497                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 498                                 }
 499                         },
 500                         {}
 501                 }
 502         },
 503         {
 504                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 505                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_P_1,
 506         },
 507         {
 508                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 509                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_M,
 510         },
 511         {
 512                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 513                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_PX,
 514         },
 515 #endif
 516
 517 /* Meteor Lake */
 518 #if IS_ENABLED(CONFIG_SND_SOC_SOF_METEORLAKE)
 519         /* Meteorlake-P */
 520         {
 521                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 522                 .device = PCI_DEVICE_ID_INTEL_HDA_MTL,
 523         },
 524         /* ArrowLake-S */
 525         {
 526                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 527                 .device = PCI_DEVICE_ID_INTEL_HDA_ARL_S,
 528         },
 529         /* ArrowLake */
 530         {
 531                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 532                 .device = PCI_DEVICE_ID_INTEL_HDA_ARL,
 533         },
 534 #endif
 535
 536 /* Lunar Lake */
 537 #if IS_ENABLED(CONFIG_SND_SOC_SOF_LUNARLAKE)
 538         /* Lunarlake-P */
 539         {
 540                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 541                 .device = PCI_DEVICE_ID_INTEL_HDA_LNL_P,
 542         },
 543 #endif
 544 };
 545
 546 static const struct config_entry *snd_intel_dsp_find_config
 547                 (struct pci_dev *pci, const struct config_entry *table, u32 len)
 548 {
 549         u16 device;
 550
 551         device = pci->device;
 552         for (; len > 0; len--, table++) {
 553                 if (table->device != device)
 554                         continue;
 555                 if (table->dmi_table && !dmi_check_system(table->dmi_table))
 556                         continue;
 557                 if (table->codec_hid) {
 558                         int i;
 559
 560                         for (i = 0; i < table->codec_hid->num_codecs; i++)
 561                                 if (acpi_dev_present(table->codec_hid->codecs[i], NULL, -1))
 562                                         break;
 563                         if (i == table->codec_hid->num_codecs)
 564                                 continue;
 565                 }
 566                 return table;
 567         }
 568         return NULL;
 569 }
 570
 571 static int snd_intel_dsp_check_dmic(struct pci_dev *pci)
 572 {
 573         struct nhlt_acpi_table *nhlt;
 574         int ret = 0;
 575
 576         nhlt = intel_nhlt_init(&pci->dev);
 577         if (nhlt) {
 578                 if (intel_nhlt_has_endpoint_type(nhlt, NHLT_LINK_DMIC))
 579                         ret = 1;
 580                 intel_nhlt_free(nhlt);
 581         }
 582         return ret;
 583 }
 584
 585 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
 586 static int snd_intel_dsp_check_soundwire(struct pci_dev *pci)
 587 {
 588         struct sdw_intel_acpi_info info;
 589         acpi_handle handle;
 590         int ret;
 591
 592         handle = ACPI_HANDLE(&pci->dev);
 593
 594         ret = sdw_intel_acpi_scan(handle, &info);
 595         if (ret < 0)
 596                 return ret;
 597
 598         return info.link_mask;
 599 }
 600 #else
 601 static int snd_intel_dsp_check_soundwire(struct pci_dev *pci)
 602 {
 603         return 0;
 604 }
 605 #endif
 606
 607 int snd_intel_dsp_driver_probe(struct pci_dev *pci)
 608 {
 609         const struct config_entry *cfg;
 610
 611         /* Intel vendor only */
 612         if (pci->vendor != PCI_VENDOR_ID_INTEL)
 613                 return SND_INTEL_DSP_DRIVER_ANY;
 614
 615         /*
 616          * Legacy devices don't have a PCI-based DSP and use HDaudio
 617          * for HDMI/DP support, ignore kernel parameter
 618          */
 619         switch (pci->device) {
 620         case PCI_DEVICE_ID_INTEL_HDA_BDW:
 621         case PCI_DEVICE_ID_INTEL_HDA_HSW_0:
 622         case PCI_DEVICE_ID_INTEL_HDA_HSW_2:
 623         case PCI_DEVICE_ID_INTEL_HDA_HSW_3:
 624         case PCI_DEVICE_ID_INTEL_HDA_BYT:
 625         case PCI_DEVICE_ID_INTEL_HDA_BSW:
 626                 return SND_INTEL_DSP_DRIVER_ANY;
 627         }
 628
 629         if (dsp_driver > 0 && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST)
 630                 return dsp_driver;
 631
 632         /*
 633          * detect DSP by checking class/subclass/prog-id information
 634          * class=04 subclass 03 prog-if 00: no DSP, use legacy driver
 635          * class=04 subclass 01 prog-if 00: DSP is present
 636          *  (and may be required e.g. for DMIC or SSP support)
 637          * class=04 subclass 03 prog-if 80: use DSP or legacy mode
 638          */
 639         if (pci->class == 0x040300)
 640                 return SND_INTEL_DSP_DRIVER_LEGACY;
 641         if (pci->class != 0x040100 && pci->class != 0x040380) {
 642                 dev_err(&pci->dev, "Unknown PCI class/subclass/prog-if information (0x%06x) found, selecting HDAudio legacy driver\n", pci->class);
 643                 return SND_INTEL_DSP_DRIVER_LEGACY;
 644         }
 645
 646         dev_info(&pci->dev, "DSP detected with PCI class/subclass/prog-if info 0x%06x\n", pci->class);
 647
 648         /* find the configuration for the specific device */
 649         cfg = snd_intel_dsp_find_config(pci, config_table, ARRAY_SIZE(config_table));
 650         if (!cfg)
 651                 return SND_INTEL_DSP_DRIVER_ANY;
 652
 653         if (cfg->flags & FLAG_SOF) {
 654                 if (cfg->flags & FLAG_SOF_ONLY_IF_SOUNDWIRE &&
 655                     snd_intel_dsp_check_soundwire(pci) > 0) {
 656                         dev_info(&pci->dev, "SoundWire enabled on CannonLake+ platform, using SOF driver\n");
 657                         return SND_INTEL_DSP_DRIVER_SOF;
 658                 }
 659                 if (cfg->flags & FLAG_SOF_ONLY_IF_DMIC &&
 660                     snd_intel_dsp_check_dmic(pci)) {
 661                         dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SOF driver\n");
 662                         return SND_INTEL_DSP_DRIVER_SOF;
 663                 }
 664                 if (!(cfg->flags & FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE))
 665                         return SND_INTEL_DSP_DRIVER_SOF;
 666         }
 667
 668
 669         if (cfg->flags & FLAG_SST) {
 670                 if (cfg->flags & FLAG_SST_ONLY_IF_DMIC) {
 671                         if (snd_intel_dsp_check_dmic(pci)) {
 672                                 dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SST driver\n");
 673                                 return SND_INTEL_DSP_DRIVER_SST;
 674                         }
 675                 } else {
 676                         return SND_INTEL_DSP_DRIVER_SST;
 677                 }
 678         }
 679
 680         return SND_INTEL_DSP_DRIVER_LEGACY;
 681 }
 682 EXPORT_SYMBOL_GPL(snd_intel_dsp_driver_probe);
 683
 684 /* Should we default to SOF or SST for BYT/CHT ? */
 685 #if IS_ENABLED(CONFIG_SND_INTEL_BYT_PREFER_SOF) || \
 686     !IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI)
 687 #define FLAG_SST_OR_SOF_BYT     FLAG_SOF
 688 #else
 689 #define FLAG_SST_OR_SOF_BYT     FLAG_SST
 690 #endif
 691
 692 /*
 693  * configuration table
 694  * - the order of similar ACPI ID entries is important!
 695  * - the first successful match will win
 696  */
 697 static const struct config_entry acpi_config_table[] = {
 698 #if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) || \
 699     IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
 700 /* BayTrail */
 701         {
 702                 .flags = FLAG_SST_OR_SOF_BYT,
 703                 .acpi_hid = "80860F28",
 704         },
 705 /* CherryTrail */
 706         {
 707                 .flags = FLAG_SST_OR_SOF_BYT,
 708                 .acpi_hid = "808622A8",
 709         },
 710 #endif
 711 /* Broadwell */
 712 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT)
 713         {
 714                 .flags = FLAG_SST,
 715                 .acpi_hid = "INT3438"
 716         },
 717 #endif
 718 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
 719         {
 720                 .flags = FLAG_SOF,
 721                 .acpi_hid = "INT3438"
 722         },
 723 #endif
 724 /* Haswell - not supported by SOF but added for consistency */
 725 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT)
 726         {
 727                 .flags = FLAG_SST,
 728                 .acpi_hid = "INT33C8"
 729         },
 730 #endif
 731 };
 732
 733 static const struct config_entry *snd_intel_acpi_dsp_find_config(const u8 acpi_hid[ACPI_ID_LEN],
 734                                                                  const struct config_entry *table,
 735                                                                  u32 len)
 736 {
 737         for (; len > 0; len--, table++) {
 738                 if (memcmp(table->acpi_hid, acpi_hid, ACPI_ID_LEN))
 739                         continue;
 740                 if (table->dmi_table && !dmi_check_system(table->dmi_table))
 741                         continue;
 742                 return table;
 743         }
 744         return NULL;
 745 }
 746
 747 int snd_intel_acpi_dsp_driver_probe(struct device *dev, const u8 acpi_hid[ACPI_ID_LEN])
 748 {
 749         const struct config_entry *cfg;
 750
 751         if (dsp_driver > SND_INTEL_DSP_DRIVER_LEGACY && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST)
 752                 return dsp_driver;
 753
 754         if (dsp_driver == SND_INTEL_DSP_DRIVER_LEGACY) {
 755                 dev_warn(dev, "dsp_driver parameter %d not supported, using automatic detection\n",
 756                          SND_INTEL_DSP_DRIVER_LEGACY);
 757         }
 758
 759         /* find the configuration for the specific device */
 760         cfg = snd_intel_acpi_dsp_find_config(acpi_hid,  acpi_config_table,
 761                                              ARRAY_SIZE(acpi_config_table));
 762         if (!cfg)
 763                 return SND_INTEL_DSP_DRIVER_ANY;
 764
 765         if (cfg->flags & FLAG_SST)
 766                 return SND_INTEL_DSP_DRIVER_SST;
 767
 768         if (cfg->flags & FLAG_SOF)
 769                 return SND_INTEL_DSP_DRIVER_SOF;
 770
 771         return SND_INTEL_DSP_DRIVER_SST;
 772 }
 773 EXPORT_SYMBOL_GPL(snd_intel_acpi_dsp_driver_probe);
 774
 775 MODULE_LICENSE("GPL v2");
 776 MODULE_DESCRIPTION("Intel DSP config driver");
 777 MODULE_IMPORT_NS(SND_INTEL_SOUNDWIRE_ACPI);