rsmisc.c revision 1.1.1.2.20.2
1 /******************************************************************************* 2 * 3 * Module Name: rsmisc - Miscellaneous resource descriptors 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2017, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44 #include "acpi.h" 45 #include "accommon.h" 46 #include "acresrc.h" 47 48 #define _COMPONENT ACPI_RESOURCES 49 ACPI_MODULE_NAME ("rsmisc") 50 51 52 #define INIT_RESOURCE_TYPE(i) i->ResourceOffset 53 #define INIT_RESOURCE_LENGTH(i) i->AmlOffset 54 #define INIT_TABLE_LENGTH(i) i->Value 55 56 #define COMPARE_OPCODE(i) i->ResourceOffset 57 #define COMPARE_TARGET(i) i->AmlOffset 58 #define COMPARE_VALUE(i) i->Value 59 60 61 /******************************************************************************* 62 * 63 * FUNCTION: AcpiRsConvertAmlToResource 64 * 65 * PARAMETERS: Resource - Pointer to the resource descriptor 66 * Aml - Where the AML descriptor is returned 67 * Info - Pointer to appropriate conversion table 68 * 69 * RETURN: Status 70 * 71 * DESCRIPTION: Convert an external AML resource descriptor to the corresponding 72 * internal resource descriptor 73 * 74 ******************************************************************************/ 75 76 ACPI_STATUS 77 AcpiRsConvertAmlToResource ( 78 ACPI_RESOURCE *Resource, 79 AML_RESOURCE *Aml, 80 ACPI_RSCONVERT_INFO *Info) 81 { 82 ACPI_RS_LENGTH AmlResourceLength; 83 void *Source; 84 void *Destination; 85 char *Target; 86 UINT8 Count; 87 UINT8 FlagsMode = FALSE; 88 UINT16 ItemCount = 0; 89 UINT16 Temp16 = 0; 90 91 92 ACPI_FUNCTION_TRACE (RsConvertAmlToResource); 93 94 95 if (!Info) 96 { 97 return_ACPI_STATUS (AE_BAD_PARAMETER); 98 } 99 100 if (((ACPI_SIZE) Resource) & 0x3) 101 { 102 /* Each internal resource struct is expected to be 32-bit aligned */ 103 104 ACPI_WARNING ((AE_INFO, 105 "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u", 106 Resource, Resource->Type, Resource->Length)); 107 } 108 109 /* Extract the resource Length field (does not include header length) */ 110 111 AmlResourceLength = AcpiUtGetResourceLength (Aml); 112 113 /* 114 * First table entry must be ACPI_RSC_INITxxx and must contain the 115 * table length (# of table entries) 116 */ 117 Count = INIT_TABLE_LENGTH (Info); 118 while (Count) 119 { 120 /* 121 * Source is the external AML byte stream buffer, 122 * destination is the internal resource descriptor 123 */ 124 Source = ACPI_ADD_PTR (void, Aml, Info->AmlOffset); 125 Destination = ACPI_ADD_PTR (void, Resource, Info->ResourceOffset); 126 127 switch (Info->Opcode) 128 { 129 case ACPI_RSC_INITGET: 130 /* 131 * Get the resource type and the initial (minimum) length 132 */ 133 memset (Resource, 0, INIT_RESOURCE_LENGTH (Info)); 134 Resource->Type = INIT_RESOURCE_TYPE (Info); 135 Resource->Length = INIT_RESOURCE_LENGTH (Info); 136 break; 137 138 case ACPI_RSC_INITSET: 139 break; 140 141 case ACPI_RSC_FLAGINIT: 142 143 FlagsMode = TRUE; 144 break; 145 146 case ACPI_RSC_1BITFLAG: 147 /* 148 * Mask and shift the flag bit 149 */ 150 ACPI_SET8 (Destination, 151 ((ACPI_GET8 (Source) >> Info->Value) & 0x01)); 152 break; 153 154 case ACPI_RSC_2BITFLAG: 155 /* 156 * Mask and shift the flag bits 157 */ 158 ACPI_SET8 (Destination, 159 ((ACPI_GET8 (Source) >> Info->Value) & 0x03)); 160 break; 161 162 case ACPI_RSC_3BITFLAG: 163 /* 164 * Mask and shift the flag bits 165 */ 166 ACPI_SET8 (Destination, 167 ((ACPI_GET8 (Source) >> Info->Value) & 0x07)); 168 break; 169 170 case ACPI_RSC_COUNT: 171 172 ItemCount = ACPI_GET8 (Source); 173 ACPI_SET8 (Destination, ItemCount); 174 175 Resource->Length = Resource->Length + 176 (Info->Value * (ItemCount - 1)); 177 break; 178 179 case ACPI_RSC_COUNT16: 180 181 ItemCount = AmlResourceLength; 182 ACPI_SET16 (Destination, ItemCount); 183 184 Resource->Length = Resource->Length + 185 (Info->Value * (ItemCount - 1)); 186 break; 187 188 case ACPI_RSC_COUNT_GPIO_PIN: 189 190 Target = ACPI_ADD_PTR (void, Aml, Info->Value); 191 ItemCount = ACPI_GET16 (Target) - ACPI_GET16 (Source); 192 193 Resource->Length = Resource->Length + ItemCount; 194 ItemCount = ItemCount / 2; 195 ACPI_SET16 (Destination, ItemCount); 196 break; 197 198 case ACPI_RSC_COUNT_GPIO_VEN: 199 200 ItemCount = ACPI_GET8 (Source); 201 ACPI_SET8 (Destination, ItemCount); 202 203 Resource->Length = Resource->Length + (Info->Value * ItemCount); 204 break; 205 206 case ACPI_RSC_COUNT_GPIO_RES: 207 /* 208 * Vendor data is optional (length/offset may both be zero) 209 * Examine vendor data length field first 210 */ 211 Target = ACPI_ADD_PTR (void, Aml, (Info->Value + 2)); 212 if (ACPI_GET16 (Target)) 213 { 214 /* Use vendor offset to get resource source length */ 215 216 Target = ACPI_ADD_PTR (void, Aml, Info->Value); 217 ItemCount = ACPI_GET16 (Target) - ACPI_GET16 (Source); 218 } 219 else 220 { 221 /* No vendor data to worry about */ 222 223 ItemCount = Aml->LargeHeader.ResourceLength + 224 sizeof (AML_RESOURCE_LARGE_HEADER) - 225 ACPI_GET16 (Source); 226 } 227 228 Resource->Length = Resource->Length + ItemCount; 229 ACPI_SET16 (Destination, ItemCount); 230 break; 231 232 case ACPI_RSC_COUNT_SERIAL_VEN: 233 234 ItemCount = ACPI_GET16 (Source) - Info->Value; 235 236 Resource->Length = Resource->Length + ItemCount; 237 ACPI_SET16 (Destination, ItemCount); 238 break; 239 240 case ACPI_RSC_COUNT_SERIAL_RES: 241 242 ItemCount = (AmlResourceLength + 243 sizeof (AML_RESOURCE_LARGE_HEADER)) - 244 ACPI_GET16 (Source) - Info->Value; 245 246 Resource->Length = Resource->Length + ItemCount; 247 ACPI_SET16 (Destination, ItemCount); 248 break; 249 250 case ACPI_RSC_LENGTH: 251 252 Resource->Length = Resource->Length + Info->Value; 253 break; 254 255 case ACPI_RSC_MOVE8: 256 case ACPI_RSC_MOVE16: 257 case ACPI_RSC_MOVE32: 258 case ACPI_RSC_MOVE64: 259 /* 260 * Raw data move. Use the Info value field unless ItemCount has 261 * been previously initialized via a COUNT opcode 262 */ 263 if (Info->Value) 264 { 265 ItemCount = Info->Value; 266 } 267 AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); 268 break; 269 270 case ACPI_RSC_MOVE_GPIO_PIN: 271 272 /* Generate and set the PIN data pointer */ 273 274 Target = (char *) ACPI_ADD_PTR (void, Resource, 275 (Resource->Length - ItemCount * 2)); 276 *(UINT16 **) Destination = ACPI_CAST_PTR (UINT16, Target); 277 278 /* Copy the PIN data */ 279 280 Source = ACPI_ADD_PTR (void, Aml, ACPI_GET16 (Source)); 281 AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode); 282 break; 283 284 case ACPI_RSC_MOVE_GPIO_RES: 285 286 /* Generate and set the ResourceSource string pointer */ 287 288 Target = (char *) ACPI_ADD_PTR (void, Resource, 289 (Resource->Length - ItemCount)); 290 *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target); 291 292 /* Copy the ResourceSource string */ 293 294 Source = ACPI_ADD_PTR (void, Aml, ACPI_GET16 (Source)); 295 AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode); 296 break; 297 298 case ACPI_RSC_MOVE_SERIAL_VEN: 299 300 /* Generate and set the Vendor Data pointer */ 301 302 Target = (char *) ACPI_ADD_PTR (void, Resource, 303 (Resource->Length - ItemCount)); 304 *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target); 305 306 /* Copy the Vendor Data */ 307 308 Source = ACPI_ADD_PTR (void, Aml, Info->Value); 309 AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode); 310 break; 311 312 case ACPI_RSC_MOVE_SERIAL_RES: 313 314 /* Generate and set the ResourceSource string pointer */ 315 316 Target = (char *) ACPI_ADD_PTR (void, Resource, 317 (Resource->Length - ItemCount)); 318 *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target); 319 320 /* Copy the ResourceSource string */ 321 322 Source = ACPI_ADD_PTR ( 323 void, Aml, (ACPI_GET16 (Source) + Info->Value)); 324 AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode); 325 break; 326 327 case ACPI_RSC_SET8: 328 329 memset (Destination, Info->AmlOffset, Info->Value); 330 break; 331 332 case ACPI_RSC_DATA8: 333 334 Target = ACPI_ADD_PTR (char, Resource, Info->Value); 335 memcpy (Destination, Source, ACPI_GET16 (Target)); 336 break; 337 338 case ACPI_RSC_ADDRESS: 339 /* 340 * Common handler for address descriptor flags 341 */ 342 if (!AcpiRsGetAddressCommon (Resource, Aml)) 343 { 344 return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); 345 } 346 break; 347 348 case ACPI_RSC_SOURCE: 349 /* 350 * Optional ResourceSource (Index and String) 351 */ 352 Resource->Length += 353 AcpiRsGetResourceSource (AmlResourceLength, Info->Value, 354 Destination, Aml, NULL); 355 break; 356 357 case ACPI_RSC_SOURCEX: 358 /* 359 * Optional ResourceSource (Index and String). This is the more 360 * complicated case used by the Interrupt() macro 361 */ 362 Target = ACPI_ADD_PTR (char, Resource, 363 Info->AmlOffset + (ItemCount * 4)); 364 365 Resource->Length += 366 AcpiRsGetResourceSource (AmlResourceLength, (ACPI_RS_LENGTH) 367 (((ItemCount - 1) * sizeof (UINT32)) + Info->Value), 368 Destination, Aml, Target); 369 break; 370 371 case ACPI_RSC_BITMASK: 372 /* 373 * 8-bit encoded bitmask (DMA macro) 374 */ 375 ItemCount = AcpiRsDecodeBitmask (ACPI_GET8 (Source), Destination); 376 if (ItemCount) 377 { 378 Resource->Length += (ItemCount - 1); 379 } 380 381 Target = ACPI_ADD_PTR (char, Resource, Info->Value); 382 ACPI_SET8 (Target, ItemCount); 383 break; 384 385 case ACPI_RSC_BITMASK16: 386 /* 387 * 16-bit encoded bitmask (IRQ macro) 388 */ 389 ACPI_MOVE_16_TO_16 (&Temp16, Source); 390 391 ItemCount = AcpiRsDecodeBitmask (Temp16, Destination); 392 if (ItemCount) 393 { 394 Resource->Length += (ItemCount - 1); 395 } 396 397 Target = ACPI_ADD_PTR (char, Resource, Info->Value); 398 ACPI_SET8 (Target, ItemCount); 399 break; 400 401 case ACPI_RSC_EXIT_NE: 402 /* 403 * Control - Exit conversion if not equal 404 */ 405 switch (Info->ResourceOffset) 406 { 407 case ACPI_RSC_COMPARE_AML_LENGTH: 408 409 if (AmlResourceLength != Info->Value) 410 { 411 goto Exit; 412 } 413 break; 414 415 case ACPI_RSC_COMPARE_VALUE: 416 417 if (ACPI_GET8 (Source) != Info->Value) 418 { 419 goto Exit; 420 } 421 break; 422 423 default: 424 425 ACPI_ERROR ((AE_INFO, "Invalid conversion sub-opcode")); 426 return_ACPI_STATUS (AE_BAD_PARAMETER); 427 } 428 break; 429 430 default: 431 432 ACPI_ERROR ((AE_INFO, "Invalid conversion opcode")); 433 return_ACPI_STATUS (AE_BAD_PARAMETER); 434 } 435 436 Count--; 437 Info++; 438 } 439 440 Exit: 441 if (!FlagsMode) 442 { 443 /* Round the resource struct length up to the next boundary (32 or 64) */ 444 445 Resource->Length = (UINT32) 446 ACPI_ROUND_UP_TO_NATIVE_WORD (Resource->Length); 447 } 448 return_ACPI_STATUS (AE_OK); 449 } 450 451 452 /******************************************************************************* 453 * 454 * FUNCTION: AcpiRsConvertResourceToAml 455 * 456 * PARAMETERS: Resource - Pointer to the resource descriptor 457 * Aml - Where the AML descriptor is returned 458 * Info - Pointer to appropriate conversion table 459 * 460 * RETURN: Status 461 * 462 * DESCRIPTION: Convert an internal resource descriptor to the corresponding 463 * external AML resource descriptor. 464 * 465 ******************************************************************************/ 466 467 ACPI_STATUS 468 AcpiRsConvertResourceToAml ( 469 ACPI_RESOURCE *Resource, 470 AML_RESOURCE *Aml, 471 ACPI_RSCONVERT_INFO *Info) 472 { 473 void *Source = NULL; 474 void *Destination; 475 char *Target; 476 ACPI_RSDESC_SIZE AmlLength = 0; 477 UINT8 Count; 478 UINT16 Temp16 = 0; 479 UINT16 ItemCount = 0; 480 481 482 ACPI_FUNCTION_TRACE (RsConvertResourceToAml); 483 484 485 if (!Info) 486 { 487 return_ACPI_STATUS (AE_BAD_PARAMETER); 488 } 489 490 /* 491 * First table entry must be ACPI_RSC_INITxxx and must contain the 492 * table length (# of table entries) 493 */ 494 Count = INIT_TABLE_LENGTH (Info); 495 496 while (Count) 497 { 498 /* 499 * Source is the internal resource descriptor, 500 * destination is the external AML byte stream buffer 501 */ 502 Source = ACPI_ADD_PTR (void, Resource, Info->ResourceOffset); 503 Destination = ACPI_ADD_PTR (void, Aml, Info->AmlOffset); 504 505 switch (Info->Opcode) 506 { 507 case ACPI_RSC_INITSET: 508 509 memset (Aml, 0, INIT_RESOURCE_LENGTH (Info)); 510 AmlLength = INIT_RESOURCE_LENGTH (Info); 511 AcpiRsSetResourceHeader ( 512 INIT_RESOURCE_TYPE (Info), AmlLength, Aml); 513 break; 514 515 case ACPI_RSC_INITGET: 516 break; 517 518 case ACPI_RSC_FLAGINIT: 519 /* 520 * Clear the flag byte 521 */ 522 ACPI_SET8 (Destination, 0); 523 break; 524 525 case ACPI_RSC_1BITFLAG: 526 /* 527 * Mask and shift the flag bit 528 */ 529 ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8) 530 ((ACPI_GET8 (Source) & 0x01) << Info->Value)); 531 break; 532 533 case ACPI_RSC_2BITFLAG: 534 /* 535 * Mask and shift the flag bits 536 */ 537 ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8) 538 ((ACPI_GET8 (Source) & 0x03) << Info->Value)); 539 break; 540 541 case ACPI_RSC_3BITFLAG: 542 /* 543 * Mask and shift the flag bits 544 */ 545 ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8) 546 ((ACPI_GET8 (Source) & 0x07) << Info->Value)); 547 break; 548 549 case ACPI_RSC_COUNT: 550 551 ItemCount = ACPI_GET8 (Source); 552 ACPI_SET8 (Destination, ItemCount); 553 554 AmlLength = (UINT16) 555 (AmlLength + (Info->Value * (ItemCount - 1))); 556 break; 557 558 case ACPI_RSC_COUNT16: 559 560 ItemCount = ACPI_GET16 (Source); 561 AmlLength = (UINT16) (AmlLength + ItemCount); 562 AcpiRsSetResourceLength (AmlLength, Aml); 563 break; 564 565 case ACPI_RSC_COUNT_GPIO_PIN: 566 567 ItemCount = ACPI_GET16 (Source); 568 ACPI_SET16 (Destination, AmlLength); 569 570 AmlLength = (UINT16) (AmlLength + ItemCount * 2); 571 Target = ACPI_ADD_PTR (void, Aml, Info->Value); 572 ACPI_SET16 (Target, AmlLength); 573 AcpiRsSetResourceLength (AmlLength, Aml); 574 break; 575 576 case ACPI_RSC_COUNT_GPIO_VEN: 577 578 ItemCount = ACPI_GET16 (Source); 579 ACPI_SET16 (Destination, ItemCount); 580 581 AmlLength = (UINT16) ( 582 AmlLength + (Info->Value * ItemCount)); 583 AcpiRsSetResourceLength (AmlLength, Aml); 584 break; 585 586 case ACPI_RSC_COUNT_GPIO_RES: 587 588 /* Set resource source string length */ 589 590 ItemCount = ACPI_GET16 (Source); 591 ACPI_SET16 (Destination, AmlLength); 592 593 /* Compute offset for the Vendor Data */ 594 595 AmlLength = (UINT16) (AmlLength + ItemCount); 596 Target = ACPI_ADD_PTR (void, Aml, Info->Value); 597 598 /* Set vendor offset only if there is vendor data */ 599 600 ACPI_SET16 (Target, AmlLength); 601 602 AcpiRsSetResourceLength (AmlLength, Aml); 603 break; 604 605 case ACPI_RSC_COUNT_SERIAL_VEN: 606 607 ItemCount = ACPI_GET16 (Source); 608 ACPI_SET16 (Destination, ItemCount + Info->Value); 609 AmlLength = (UINT16) (AmlLength + ItemCount); 610 AcpiRsSetResourceLength (AmlLength, Aml); 611 break; 612 613 case ACPI_RSC_COUNT_SERIAL_RES: 614 615 ItemCount = ACPI_GET16 (Source); 616 AmlLength = (UINT16) (AmlLength + ItemCount); 617 AcpiRsSetResourceLength (AmlLength, Aml); 618 break; 619 620 case ACPI_RSC_LENGTH: 621 622 AcpiRsSetResourceLength (Info->Value, Aml); 623 break; 624 625 case ACPI_RSC_MOVE8: 626 case ACPI_RSC_MOVE16: 627 case ACPI_RSC_MOVE32: 628 case ACPI_RSC_MOVE64: 629 630 if (Info->Value) 631 { 632 ItemCount = Info->Value; 633 } 634 AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); 635 break; 636 637 case ACPI_RSC_MOVE_GPIO_PIN: 638 639 Destination = (char *) ACPI_ADD_PTR (void, Aml, 640 ACPI_GET16 (Destination)); 641 Source = * (UINT16 **) Source; 642 AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); 643 break; 644 645 case ACPI_RSC_MOVE_GPIO_RES: 646 647 /* Used for both ResourceSource string and VendorData */ 648 649 Destination = (char *) ACPI_ADD_PTR (void, Aml, 650 ACPI_GET16 (Destination)); 651 Source = * (UINT8 **) Source; 652 AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); 653 break; 654 655 case ACPI_RSC_MOVE_SERIAL_VEN: 656 657 Destination = (char *) ACPI_ADD_PTR (void, Aml, 658 (AmlLength - ItemCount)); 659 Source = * (UINT8 **) Source; 660 AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); 661 break; 662 663 case ACPI_RSC_MOVE_SERIAL_RES: 664 665 Destination = (char *) ACPI_ADD_PTR (void, Aml, 666 (AmlLength - ItemCount)); 667 Source = * (UINT8 **) Source; 668 AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); 669 break; 670 671 case ACPI_RSC_ADDRESS: 672 673 /* Set the Resource Type, General Flags, and Type-Specific Flags */ 674 675 AcpiRsSetAddressCommon (Aml, Resource); 676 break; 677 678 case ACPI_RSC_SOURCEX: 679 /* 680 * Optional ResourceSource (Index and String) 681 */ 682 AmlLength = AcpiRsSetResourceSource ( 683 Aml, (ACPI_RS_LENGTH) AmlLength, Source); 684 AcpiRsSetResourceLength (AmlLength, Aml); 685 break; 686 687 case ACPI_RSC_SOURCE: 688 /* 689 * Optional ResourceSource (Index and String). This is the more 690 * complicated case used by the Interrupt() macro 691 */ 692 AmlLength = AcpiRsSetResourceSource (Aml, Info->Value, Source); 693 AcpiRsSetResourceLength (AmlLength, Aml); 694 break; 695 696 case ACPI_RSC_BITMASK: 697 /* 698 * 8-bit encoded bitmask (DMA macro) 699 */ 700 ACPI_SET8 (Destination, 701 AcpiRsEncodeBitmask (Source, 702 *ACPI_ADD_PTR (UINT8, Resource, Info->Value))); 703 break; 704 705 case ACPI_RSC_BITMASK16: 706 /* 707 * 16-bit encoded bitmask (IRQ macro) 708 */ 709 Temp16 = AcpiRsEncodeBitmask ( 710 Source, *ACPI_ADD_PTR (UINT8, Resource, Info->Value)); 711 ACPI_MOVE_16_TO_16 (Destination, &Temp16); 712 break; 713 714 case ACPI_RSC_EXIT_LE: 715 /* 716 * Control - Exit conversion if less than or equal 717 */ 718 if (ItemCount <= Info->Value) 719 { 720 goto Exit; 721 } 722 break; 723 724 case ACPI_RSC_EXIT_NE: 725 /* 726 * Control - Exit conversion if not equal 727 */ 728 switch (COMPARE_OPCODE (Info)) 729 { 730 case ACPI_RSC_COMPARE_VALUE: 731 732 if (*ACPI_ADD_PTR (UINT8, Resource, 733 COMPARE_TARGET (Info)) != COMPARE_VALUE (Info)) 734 { 735 goto Exit; 736 } 737 break; 738 739 default: 740 741 ACPI_ERROR ((AE_INFO, "Invalid conversion sub-opcode")); 742 return_ACPI_STATUS (AE_BAD_PARAMETER); 743 } 744 break; 745 746 case ACPI_RSC_EXIT_EQ: 747 /* 748 * Control - Exit conversion if equal 749 */ 750 if (*ACPI_ADD_PTR (UINT8, Resource, 751 COMPARE_TARGET (Info)) == COMPARE_VALUE (Info)) 752 { 753 goto Exit; 754 } 755 break; 756 757 default: 758 759 ACPI_ERROR ((AE_INFO, "Invalid conversion opcode")); 760 return_ACPI_STATUS (AE_BAD_PARAMETER); 761 } 762 763 Count--; 764 Info++; 765 } 766 767 Exit: 768 return_ACPI_STATUS (AE_OK); 769 } 770 771 772 #if 0 773 /* Previous resource validations */ 774 775 if (Aml->ExtAddress64.RevisionID != 776 AML_RESOURCE_EXTENDED_ADDRESS_REVISION) 777 { 778 return_ACPI_STATUS (AE_SUPPORT); 779 } 780 781 if (Resource->Data.StartDpf.PerformanceRobustness >= 3) 782 { 783 return_ACPI_STATUS (AE_AML_BAD_RESOURCE_VALUE); 784 } 785 786 if (((Aml->Irq.Flags & 0x09) == 0x00) || 787 ((Aml->Irq.Flags & 0x09) == 0x09)) 788 { 789 /* 790 * Only [ActiveHigh, EdgeSensitive] or [ActiveLow, LevelSensitive] 791 * polarity/trigger interrupts are allowed (ACPI spec, section 792 * "IRQ Format"), so 0x00 and 0x09 are illegal. 793 */ 794 ACPI_ERROR ((AE_INFO, 795 "Invalid interrupt polarity/trigger in resource list, 0x%X", 796 Aml->Irq.Flags)); 797 return_ACPI_STATUS (AE_BAD_DATA); 798 } 799 800 Resource->Data.ExtendedIrq.InterruptCount = Temp8; 801 if (Temp8 < 1) 802 { 803 /* Must have at least one IRQ */ 804 805 return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH); 806 } 807 808 if (Resource->Data.Dma.Transfer == 0x03) 809 { 810 ACPI_ERROR ((AE_INFO, 811 "Invalid DMA.Transfer preference (3)")); 812 return_ACPI_STATUS (AE_BAD_DATA); 813 } 814 #endif 815
Indexes created Sat Oct 11 19:10:01 GMT 2025