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 use legacy 171 * HDAudio driver except for Google Chromebooks and when DMICs are 172 * present. Two cases are required since Coreboot does not expose NHLT 173 * 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 } 341 }, 342 { 343 .flags = FLAG_SOF, 344 .device = PCI_DEVICE_ID_INTEL_HDA_JSL_N, 345 .codec_hid = &essx_83x6, 346 }, 347 { 348 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC, 349 .device = PCI_DEVICE_ID_INTEL_HDA_JSL_N, 350 }, 351 #endif 352 353 /* Tigerlake */ 354 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE) 355 { 356 .flags = FLAG_SOF, 357 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP, 358 .dmi_table = (const struct dmi_system_id []) { 359 { 360 .ident = "Google Chromebooks", 361 .matches = { 362 DMI_MATCH(DMI_SYS_VENDOR, "Google"), 363 } 364 }, 365 { 366 .ident = "UPX-TGL", 367 .matches = { 368 DMI_MATCH(DMI_SYS_VENDOR, "AAEON"), 369 } 370 }, 371 {} 372 } 373 }, 374 { 375 .flags = FLAG_SOF, 376 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP, 377 .codec_hid = &essx_83x6, 378 }, 379 { 380 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 381 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP, 382 }, 383 { 384 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 385 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_H, 386 }, 387 #endif 388 389 /* Elkhart Lake */ 390 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE) 391 { 392 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC, 393 .device = PCI_DEVICE_ID_INTEL_HDA_EHL_0, 394 }, 395 { 396 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC, 397 .device = PCI_DEVICE_ID_INTEL_HDA_EHL_3, 398 }, 399 #endif 400 401 /* Alder Lake / Raptor Lake */ 402 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ALDERLAKE) 403 { 404 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 405 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_S, 406 }, 407 { 408 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 409 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_S, 410 }, 411 { 412 .flags = FLAG_SOF, 413 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_P, 414 .codec_hid = &essx_83x6, 415 }, 416 { 417 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 418 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_P, 419 }, 420 { 421 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 422 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PX, 423 }, 424 { 425 .flags = FLAG_SOF, 426 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PS, 427 .codec_hid = &essx_83x6, 428 }, 429 { 430 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 431 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PS, 432 }, 433 { 434 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 435 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_M, 436 }, 437 { 438 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 439 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_N, 440 }, 441 { 442 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 443 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_P_0, 444 }, 445 { 446 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 447 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_P_1, 448 }, 449 { 450 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 451 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_M, 452 }, 453 { 454 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 455 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_PX, 456 }, 457 #endif 458 459 /* Meteor Lake */ 460 #if IS_ENABLED(CONFIG_SND_SOC_SOF_METEORLAKE) 461 /* Meteorlake-P */ 462 { 463 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 464 .device = PCI_DEVICE_ID_INTEL_HDA_MTL, 465 }, 466 #endif 467 468 /* Lunar Lake */ 469 #if IS_ENABLED(CONFIG_SND_SOC_SOF_LUNARLAKE) 470 /* Lunarlake-P */ 471 { 472 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, 473 .device = PCI_DEVICE_ID_INTEL_HDA_LNL_P, 474 }, 475 #endif 476 }; 477 478 static const struct config_entry *snd_intel_dsp_find_config 479 (struct pci_dev *pci, const struct config_entry *table, u32 len) 480 { 481 u16 device; 482 483 device = pci->device; 484 for (; len > 0; len--, table++) { 485 if (table->device != device) 486 continue; 487 if (table->dmi_table && !dmi_check_system(table->dmi_table)) 488 continue; 489 if (table->codec_hid) { 490 int i; 491 492 for (i = 0; i < table->codec_hid->num_codecs; i++) 493 if (acpi_dev_present(table->codec_hid->codecs[i], NULL, -1)) 494 break; 495 if (i == table->codec_hid->num_codecs) 496 continue; 497 } 498 return table; 499 } 500 return NULL; 501 } 502 503 static int snd_intel_dsp_check_dmic(struct pci_dev *pci) 504 { 505 struct nhlt_acpi_table *nhlt; 506 int ret = 0; 507 508 nhlt = intel_nhlt_init(&pci->dev); 509 if (nhlt) { 510 if (intel_nhlt_has_endpoint_type(nhlt, NHLT_LINK_DMIC)) 511 ret = 1; 512 intel_nhlt_free(nhlt); 513 } 514 return ret; 515 } 516 517 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE) 518 static int snd_intel_dsp_check_soundwire(struct pci_dev *pci) 519 { 520 struct sdw_intel_acpi_info info; 521 acpi_handle handle; 522 int ret; 523 524 handle = ACPI_HANDLE(&pci->dev); 525 526 ret = sdw_intel_acpi_scan(handle, &info); 527 if (ret < 0) 528 return ret; 529 530 return info.link_mask; 531 } 532 #else 533 static int snd_intel_dsp_check_soundwire(struct pci_dev *pci) 534 { 535 return 0; 536 } 537 #endif 538 539 int snd_intel_dsp_driver_probe(struct pci_dev *pci) 540 { 541 const struct config_entry *cfg; 542 543 /* Intel vendor only */ 544 if (pci->vendor != PCI_VENDOR_ID_INTEL) 545 return SND_INTEL_DSP_DRIVER_ANY; 546 547 /* 548 * Legacy devices don't have a PCI-based DSP and use HDaudio 549 * for HDMI/DP support, ignore kernel parameter 550 */ 551 switch (pci->device) { 552 case PCI_DEVICE_ID_INTEL_HDA_BDW: 553 case PCI_DEVICE_ID_INTEL_HDA_HSW_0: 554 case PCI_DEVICE_ID_INTEL_HDA_HSW_2: 555 case PCI_DEVICE_ID_INTEL_HDA_HSW_3: 556 case PCI_DEVICE_ID_INTEL_HDA_BYT: 557 case PCI_DEVICE_ID_INTEL_HDA_BSW: 558 return SND_INTEL_DSP_DRIVER_ANY; 559 } 560 561 if (dsp_driver > 0 && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST) 562 return dsp_driver; 563 564 /* 565 * detect DSP by checking class/subclass/prog-id information 566 * class=04 subclass 03 prog-if 00: no DSP, use legacy driver 567 * class=04 subclass 01 prog-if 00: DSP is present 568 * (and may be required e.g. for DMIC or SSP support) 569 * class=04 subclass 03 prog-if 80: use DSP or legacy mode 570 */ 571 if (pci->class == 0x040300) 572 return SND_INTEL_DSP_DRIVER_LEGACY; 573 if (pci->class != 0x040100 && pci->class != 0x040380) { 574 dev_err(&pci->dev, "Unknown PCI class/subclass/prog-if information (0x%06x) found, selecting HDAudio legacy driver\n", pci->class); 575 return SND_INTEL_DSP_DRIVER_LEGACY; 576 } 577 578 dev_info(&pci->dev, "DSP detected with PCI class/subclass/prog-if info 0x%06x\n", pci->class); 579 580 /* find the configuration for the specific device */ 581 cfg = snd_intel_dsp_find_config(pci, config_table, ARRAY_SIZE(config_table)); 582 if (!cfg) 583 return SND_INTEL_DSP_DRIVER_ANY; 584 585 if (cfg->flags & FLAG_SOF) { 586 if (cfg->flags & FLAG_SOF_ONLY_IF_SOUNDWIRE && 587 snd_intel_dsp_check_soundwire(pci) > 0) { 588 dev_info(&pci->dev, "SoundWire enabled on CannonLake+ platform, using SOF driver\n"); 589 return SND_INTEL_DSP_DRIVER_SOF; 590 } 591 if (cfg->flags & FLAG_SOF_ONLY_IF_DMIC && 592 snd_intel_dsp_check_dmic(pci)) { 593 dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SOF driver\n"); 594 return SND_INTEL_DSP_DRIVER_SOF; 595 } 596 if (!(cfg->flags & FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE)) 597 return SND_INTEL_DSP_DRIVER_SOF; 598 } 599 600 601 if (cfg->flags & FLAG_SST) { 602 if (cfg->flags & FLAG_SST_ONLY_IF_DMIC) { 603 if (snd_intel_dsp_check_dmic(pci)) { 604 dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SST driver\n"); 605 return SND_INTEL_DSP_DRIVER_SST; 606 } 607 } else { 608 return SND_INTEL_DSP_DRIVER_SST; 609 } 610 } 611 612 return SND_INTEL_DSP_DRIVER_LEGACY; 613 } 614 EXPORT_SYMBOL_GPL(snd_intel_dsp_driver_probe); 615 616 /* Should we default to SOF or SST for BYT/CHT ? */ 617 #if IS_ENABLED(CONFIG_SND_INTEL_BYT_PREFER_SOF) || \ 618 !IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) 619 #define FLAG_SST_OR_SOF_BYT FLAG_SOF 620 #else 621 #define FLAG_SST_OR_SOF_BYT FLAG_SST 622 #endif 623 624 /* 625 * configuration table 626 * - the order of similar ACPI ID entries is important! 627 * - the first successful match will win 628 */ 629 static const struct config_entry acpi_config_table[] = { 630 #if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) || \ 631 IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 632 /* BayTrail */ 633 { 634 .flags = FLAG_SST_OR_SOF_BYT, 635 .acpi_hid = "80860F28", 636 }, 637 /* CherryTrail */ 638 { 639 .flags = FLAG_SST_OR_SOF_BYT, 640 .acpi_hid = "808622A8", 641 }, 642 #endif 643 /* Broadwell */ 644 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT) 645 { 646 .flags = FLAG_SST, 647 .acpi_hid = "INT3438" 648 }, 649 #endif 650 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) 651 { 652 .flags = FLAG_SOF, 653 .acpi_hid = "INT3438" 654 }, 655 #endif 656 /* Haswell - not supported by SOF but added for consistency */ 657 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT) 658 { 659 .flags = FLAG_SST, 660 .acpi_hid = "INT33C8" 661 }, 662 #endif 663 }; 664 665 static const struct config_entry *snd_intel_acpi_dsp_find_config(const u8 acpi_hid[ACPI_ID_LEN], 666 const struct config_entry *table, 667 u32 len) 668 { 669 for (; len > 0; len--, table++) { 670 if (memcmp(table->acpi_hid, acpi_hid, ACPI_ID_LEN)) 671 continue; 672 if (table->dmi_table && !dmi_check_system(table->dmi_table)) 673 continue; 674 return table; 675 } 676 return NULL; 677 } 678 679 int snd_intel_acpi_dsp_driver_probe(struct device *dev, const u8 acpi_hid[ACPI_ID_LEN]) 680 { 681 const struct config_entry *cfg; 682 683 if (dsp_driver > SND_INTEL_DSP_DRIVER_LEGACY && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST) 684 return dsp_driver; 685 686 if (dsp_driver == SND_INTEL_DSP_DRIVER_LEGACY) { 687 dev_warn(dev, "dsp_driver parameter %d not supported, using automatic detection\n", 688 SND_INTEL_DSP_DRIVER_LEGACY); 689 } 690 691 /* find the configuration for the specific device */ 692 cfg = snd_intel_acpi_dsp_find_config(acpi_hid, acpi_config_table, 693 ARRAY_SIZE(acpi_config_table)); 694 if (!cfg) 695 return SND_INTEL_DSP_DRIVER_ANY; 696 697 if (cfg->flags & FLAG_SST) 698 return SND_INTEL_DSP_DRIVER_SST; 699 700 if (cfg->flags & FLAG_SOF) 701 return SND_INTEL_DSP_DRIVER_SOF; 702 703 return SND_INTEL_DSP_DRIVER_SST; 704 } 705 EXPORT_SYMBOL_GPL(snd_intel_acpi_dsp_driver_probe); 706 707 MODULE_LICENSE("GPL v2"); 708 MODULE_DESCRIPTION("Intel DSP config driver"); 709 MODULE_IMPORT_NS(SND_INTEL_SOUNDWIRE_ACPI); 710