1 /******************************************************************************* 2 * 3 * Module Name: rsmisc - Miscellaneous resource descriptors 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2018, 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/acpi.h> 45 #include "accommon.h" 46 #include "acresrc.h" 47 48 #define _COMPONENT ACPI_RESOURCES 49 ACPI_MODULE_NAME("rsmisc") 50 #define INIT_RESOURCE_TYPE(i) i->resource_offset 51 #define INIT_RESOURCE_LENGTH(i) i->aml_offset 52 #define INIT_TABLE_LENGTH(i) i->value 53 #define COMPARE_OPCODE(i) i->resource_offset 54 #define COMPARE_TARGET(i) i->aml_offset 55 #define COMPARE_VALUE(i) i->value 56 /******************************************************************************* 57 * 58 * FUNCTION: acpi_rs_convert_aml_to_resource 59 * 60 * PARAMETERS: resource - Pointer to the resource descriptor 61 * aml - Where the AML descriptor is returned 62 * info - Pointer to appropriate conversion table 63 * 64 * RETURN: Status 65 * 66 * DESCRIPTION: Convert an external AML resource descriptor to the corresponding 67 * internal resource descriptor 68 * 69 ******************************************************************************/ 70 acpi_status 71 acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, 72 union aml_resource *aml, 73 struct acpi_rsconvert_info *info) 74 { 75 acpi_rs_length aml_resource_length; 76 void *source; 77 void *destination; 78 char *target; 79 u8 count; 80 u8 flags_mode = FALSE; 81 u16 item_count = 0; 82 u16 temp16 = 0; 83 84 ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource); 85 86 if (!info) { 87 return_ACPI_STATUS(AE_BAD_PARAMETER); 88 } 89 90 if (((acpi_size)resource) & 0x3) { 91 92 /* Each internal resource struct is expected to be 32-bit aligned */ 93 94 ACPI_WARNING((AE_INFO, 95 "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u", 96 resource, resource->type, resource->length)); 97 } 98 99 /* Extract the resource Length field (does not include header length) */ 100 101 aml_resource_length = acpi_ut_get_resource_length(aml); 102 103 /* 104 * First table entry must be ACPI_RSC_INITxxx and must contain the 105 * table length (# of table entries) 106 */ 107 count = INIT_TABLE_LENGTH(info); 108 while (count) { 109 /* 110 * Source is the external AML byte stream buffer, 111 * destination is the internal resource descriptor 112 */ 113 source = ACPI_ADD_PTR(void, aml, info->aml_offset); 114 destination = 115 ACPI_ADD_PTR(void, resource, info->resource_offset); 116 117 switch (info->opcode) { 118 case ACPI_RSC_INITGET: 119 /* 120 * Get the resource type and the initial (minimum) length 121 */ 122 memset(resource, 0, INIT_RESOURCE_LENGTH(info)); 123 resource->type = INIT_RESOURCE_TYPE(info); 124 resource->length = INIT_RESOURCE_LENGTH(info); 125 break; 126 127 case ACPI_RSC_INITSET: 128 break; 129 130 case ACPI_RSC_FLAGINIT: 131 132 flags_mode = TRUE; 133 break; 134 135 case ACPI_RSC_1BITFLAG: 136 /* 137 * Mask and shift the flag bit 138 */ 139 ACPI_SET8(destination, 140 ((ACPI_GET8(source) >> info->value) & 0x01)); 141 break; 142 143 case ACPI_RSC_2BITFLAG: 144 /* 145 * Mask and shift the flag bits 146 */ 147 ACPI_SET8(destination, 148 ((ACPI_GET8(source) >> info->value) & 0x03)); 149 break; 150 151 case ACPI_RSC_3BITFLAG: 152 /* 153 * Mask and shift the flag bits 154 */ 155 ACPI_SET8(destination, 156 ((ACPI_GET8(source) >> info->value) & 0x07)); 157 break; 158 159 case ACPI_RSC_COUNT: 160 161 item_count = ACPI_GET8(source); 162 ACPI_SET8(destination, item_count); 163 164 resource->length = resource->length + 165 (info->value * (item_count - 1)); 166 break; 167 168 case ACPI_RSC_COUNT16: 169 170 item_count = aml_resource_length; 171 ACPI_SET16(destination, item_count); 172 173 resource->length = resource->length + 174 (info->value * (item_count - 1)); 175 break; 176 177 case ACPI_RSC_COUNT_GPIO_PIN: 178 179 target = ACPI_ADD_PTR(void, aml, info->value); 180 item_count = ACPI_GET16(target) - ACPI_GET16(source); 181 182 resource->length = resource->length + item_count; 183 item_count = item_count / 2; 184 ACPI_SET16(destination, item_count); 185 break; 186 187 case ACPI_RSC_COUNT_GPIO_VEN: 188 189 item_count = ACPI_GET8(source); 190 ACPI_SET8(destination, item_count); 191 192 resource->length = 193 resource->length + (info->value * item_count); 194 break; 195 196 case ACPI_RSC_COUNT_GPIO_RES: 197 /* 198 * Vendor data is optional (length/offset may both be zero) 199 * Examine vendor data length field first 200 */ 201 target = ACPI_ADD_PTR(void, aml, (info->value + 2)); 202 if (ACPI_GET16(target)) { 203 204 /* Use vendor offset to get resource source length */ 205 206 target = ACPI_ADD_PTR(void, aml, info->value); 207 item_count = 208 ACPI_GET16(target) - ACPI_GET16(source); 209 } else { 210 /* No vendor data to worry about */ 211 212 item_count = aml->large_header.resource_length + 213 sizeof(struct aml_resource_large_header) - 214 ACPI_GET16(source); 215 } 216 217 resource->length = resource->length + item_count; 218 ACPI_SET16(destination, item_count); 219 break; 220 221 case ACPI_RSC_COUNT_SERIAL_VEN: 222 223 item_count = ACPI_GET16(source) - info->value; 224 225 resource->length = resource->length + item_count; 226 ACPI_SET16(destination, item_count); 227 break; 228 229 case ACPI_RSC_COUNT_SERIAL_RES: 230 231 item_count = (aml_resource_length + 232 sizeof(struct aml_resource_large_header)) 233 - ACPI_GET16(source) - info->value; 234 235 resource->length = resource->length + item_count; 236 ACPI_SET16(destination, item_count); 237 break; 238 239 case ACPI_RSC_LENGTH: 240 241 resource->length = resource->length + info->value; 242 break; 243 244 case ACPI_RSC_MOVE8: 245 case ACPI_RSC_MOVE16: 246 case ACPI_RSC_MOVE32: 247 case ACPI_RSC_MOVE64: 248 /* 249 * Raw data move. Use the Info value field unless item_count has 250 * been previously initialized via a COUNT opcode 251 */ 252 if (info->value) { 253 item_count = info->value; 254 } 255 acpi_rs_move_data(destination, source, item_count, 256 info->opcode); 257 break; 258 259 case ACPI_RSC_MOVE_GPIO_PIN: 260 261 /* Generate and set the PIN data pointer */ 262 263 target = (char *)ACPI_ADD_PTR(void, resource, 264 (resource->length - 265 item_count * 2)); 266 *(u16 **)destination = ACPI_CAST_PTR(u16, target); 267 268 /* Copy the PIN data */ 269 270 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source)); 271 acpi_rs_move_data(target, source, item_count, 272 info->opcode); 273 break; 274 275 case ACPI_RSC_MOVE_GPIO_RES: 276 277 /* Generate and set the resource_source string pointer */ 278 279 target = (char *)ACPI_ADD_PTR(void, resource, 280 (resource->length - 281 item_count)); 282 *(u8 **)destination = ACPI_CAST_PTR(u8, target); 283 284 /* Copy the resource_source string */ 285 286 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source)); 287 acpi_rs_move_data(target, source, item_count, 288 info->opcode); 289 break; 290 291 case ACPI_RSC_MOVE_SERIAL_VEN: 292 293 /* Generate and set the Vendor Data pointer */ 294 295 target = (char *)ACPI_ADD_PTR(void, resource, 296 (resource->length - 297 item_count)); 298 *(u8 **)destination = ACPI_CAST_PTR(u8, target); 299 300 /* Copy the Vendor Data */ 301 302 source = ACPI_ADD_PTR(void, aml, info->value); 303 acpi_rs_move_data(target, source, item_count, 304 info->opcode); 305 break; 306 307 case ACPI_RSC_MOVE_SERIAL_RES: 308 309 /* Generate and set the resource_source string pointer */ 310 311 target = (char *)ACPI_ADD_PTR(void, resource, 312 (resource->length - 313 item_count)); 314 *(u8 **)destination = ACPI_CAST_PTR(u8, target); 315 316 /* Copy the resource_source string */ 317 318 source = 319 ACPI_ADD_PTR(void, aml, 320 (ACPI_GET16(source) + info->value)); 321 acpi_rs_move_data(target, source, item_count, 322 info->opcode); 323 break; 324 325 case ACPI_RSC_SET8: 326 327 memset(destination, info->aml_offset, info->value); 328 break; 329 330 case ACPI_RSC_DATA8: 331 332 target = ACPI_ADD_PTR(char, resource, info->value); 333 memcpy(destination, source, ACPI_GET16(target)); 334 break; 335 336 case ACPI_RSC_ADDRESS: 337 /* 338 * Common handler for address descriptor flags 339 */ 340 if (!acpi_rs_get_address_common(resource, aml)) { 341 return_ACPI_STATUS 342 (AE_AML_INVALID_RESOURCE_TYPE); 343 } 344 break; 345 346 case ACPI_RSC_SOURCE: 347 /* 348 * Optional resource_source (Index and String) 349 */ 350 resource->length += 351 acpi_rs_get_resource_source(aml_resource_length, 352 info->value, 353 destination, aml, NULL); 354 break; 355 356 case ACPI_RSC_SOURCEX: 357 /* 358 * Optional resource_source (Index and String). This is the more 359 * complicated case used by the Interrupt() macro 360 */ 361 target = ACPI_ADD_PTR(char, resource, 362 info->aml_offset + 363 (item_count * 4)); 364 365 resource->length += 366 acpi_rs_get_resource_source(aml_resource_length, 367 (acpi_rs_length) 368 (((item_count - 369 1) * sizeof(u32)) + 370 info->value), 371 destination, aml, 372 target); 373 break; 374 375 case ACPI_RSC_BITMASK: 376 /* 377 * 8-bit encoded bitmask (DMA macro) 378 */ 379 item_count = 380 acpi_rs_decode_bitmask(ACPI_GET8(source), 381 destination); 382 if (item_count) { 383 resource->length += (item_count - 1); 384 } 385 386 target = ACPI_ADD_PTR(char, resource, info->value); 387 ACPI_SET8(target, item_count); 388 break; 389 390 case ACPI_RSC_BITMASK16: 391 /* 392 * 16-bit encoded bitmask (IRQ macro) 393 */ 394 ACPI_MOVE_16_TO_16(&temp16, source); 395 396 item_count = 397 acpi_rs_decode_bitmask(temp16, destination); 398 if (item_count) { 399 resource->length += (item_count - 1); 400 } 401 402 target = ACPI_ADD_PTR(char, resource, info->value); 403 ACPI_SET8(target, item_count); 404 break; 405 406 case ACPI_RSC_EXIT_NE: 407 /* 408 * control - Exit conversion if not equal 409 */ 410 switch (info->resource_offset) { 411 case ACPI_RSC_COMPARE_AML_LENGTH: 412 413 if (aml_resource_length != info->value) { 414 goto exit; 415 } 416 break; 417 418 case ACPI_RSC_COMPARE_VALUE: 419 420 if (ACPI_GET8(source) != info->value) { 421 goto exit; 422 } 423 break; 424 425 default: 426 427 ACPI_ERROR((AE_INFO, 428 "Invalid conversion sub-opcode")); 429 return_ACPI_STATUS(AE_BAD_PARAMETER); 430 } 431 break; 432 433 default: 434 435 ACPI_ERROR((AE_INFO, "Invalid conversion opcode")); 436 return_ACPI_STATUS(AE_BAD_PARAMETER); 437 } 438 439 count--; 440 info++; 441 } 442 443 exit: 444 if (!flags_mode) { 445 446 /* Round the resource struct length up to the next boundary (32 or 64) */ 447 448 resource->length = (u32) 449 ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length); 450 } 451 return_ACPI_STATUS(AE_OK); 452 } 453 454 /******************************************************************************* 455 * 456 * FUNCTION: acpi_rs_convert_resource_to_aml 457 * 458 * PARAMETERS: resource - Pointer to the resource descriptor 459 * aml - Where the AML descriptor is returned 460 * info - Pointer to appropriate conversion table 461 * 462 * RETURN: Status 463 * 464 * DESCRIPTION: Convert an internal resource descriptor to the corresponding 465 * external AML resource descriptor. 466 * 467 ******************************************************************************/ 468 469 acpi_status 470 acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, 471 union aml_resource *aml, 472 struct acpi_rsconvert_info *info) 473 { 474 void *source = NULL; 475 void *destination; 476 char *target; 477 acpi_rsdesc_size aml_length = 0; 478 u8 count; 479 u16 temp16 = 0; 480 u16 item_count = 0; 481 482 ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml); 483 484 if (!info) { 485 return_ACPI_STATUS(AE_BAD_PARAMETER); 486 } 487 488 /* 489 * First table entry must be ACPI_RSC_INITxxx and must contain the 490 * table length (# of table entries) 491 */ 492 count = INIT_TABLE_LENGTH(info); 493 494 while (count) { 495 /* 496 * Source is the internal resource descriptor, 497 * destination is the external AML byte stream buffer 498 */ 499 source = ACPI_ADD_PTR(void, resource, info->resource_offset); 500 destination = ACPI_ADD_PTR(void, aml, info->aml_offset); 501 502 switch (info->opcode) { 503 case ACPI_RSC_INITSET: 504 505 memset(aml, 0, INIT_RESOURCE_LENGTH(info)); 506 aml_length = INIT_RESOURCE_LENGTH(info); 507 acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info), 508 aml_length, aml); 509 break; 510 511 case ACPI_RSC_INITGET: 512 break; 513 514 case ACPI_RSC_FLAGINIT: 515 /* 516 * Clear the flag byte 517 */ 518 ACPI_SET8(destination, 0); 519 break; 520 521 case ACPI_RSC_1BITFLAG: 522 /* 523 * Mask and shift the flag bit 524 */ 525 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8) 526 ((ACPI_GET8(source) & 0x01) << info-> 527 value)); 528 break; 529 530 case ACPI_RSC_2BITFLAG: 531 /* 532 * Mask and shift the flag bits 533 */ 534 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8) 535 ((ACPI_GET8(source) & 0x03) << info-> 536 value)); 537 break; 538 539 case ACPI_RSC_3BITFLAG: 540 /* 541 * Mask and shift the flag bits 542 */ 543 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8) 544 ((ACPI_GET8(source) & 0x07) << info-> 545 value)); 546 break; 547 548 case ACPI_RSC_COUNT: 549 550 item_count = ACPI_GET8(source); 551 ACPI_SET8(destination, item_count); 552 553 aml_length = (u16) 554 (aml_length + (info->value * (item_count - 1))); 555 break; 556 557 case ACPI_RSC_COUNT16: 558 559 item_count = ACPI_GET16(source); 560 aml_length = (u16) (aml_length + item_count); 561 acpi_rs_set_resource_length(aml_length, aml); 562 break; 563 564 case ACPI_RSC_COUNT_GPIO_PIN: 565 566 item_count = ACPI_GET16(source); 567 ACPI_SET16(destination, aml_length); 568 569 aml_length = (u16)(aml_length + item_count * 2); 570 target = ACPI_ADD_PTR(void, aml, info->value); 571 ACPI_SET16(target, aml_length); 572 acpi_rs_set_resource_length(aml_length, aml); 573 break; 574 575 case ACPI_RSC_COUNT_GPIO_VEN: 576 577 item_count = ACPI_GET16(source); 578 ACPI_SET16(destination, item_count); 579 580 aml_length = 581 (u16)(aml_length + (info->value * item_count)); 582 acpi_rs_set_resource_length(aml_length, aml); 583 break; 584 585 case ACPI_RSC_COUNT_GPIO_RES: 586 587 /* Set resource source string length */ 588 589 item_count = ACPI_GET16(source); 590 ACPI_SET16(destination, aml_length); 591 592 /* Compute offset for the Vendor Data */ 593 594 aml_length = (u16)(aml_length + item_count); 595 target = ACPI_ADD_PTR(void, aml, info->value); 596 597 /* Set vendor offset only if there is vendor data */ 598 599 ACPI_SET16(target, aml_length); 600 601 acpi_rs_set_resource_length(aml_length, aml); 602 break; 603 604 case ACPI_RSC_COUNT_SERIAL_VEN: 605 606 item_count = ACPI_GET16(source); 607 ACPI_SET16(destination, item_count + info->value); 608 aml_length = (u16)(aml_length + item_count); 609 acpi_rs_set_resource_length(aml_length, aml); 610 break; 611 612 case ACPI_RSC_COUNT_SERIAL_RES: 613 614 item_count = ACPI_GET16(source); 615 aml_length = (u16)(aml_length + item_count); 616 acpi_rs_set_resource_length(aml_length, aml); 617 break; 618 619 case ACPI_RSC_LENGTH: 620 621 acpi_rs_set_resource_length(info->value, aml); 622 break; 623 624 case ACPI_RSC_MOVE8: 625 case ACPI_RSC_MOVE16: 626 case ACPI_RSC_MOVE32: 627 case ACPI_RSC_MOVE64: 628 629 if (info->value) { 630 item_count = info->value; 631 } 632 acpi_rs_move_data(destination, source, item_count, 633 info->opcode); 634 break; 635 636 case ACPI_RSC_MOVE_GPIO_PIN: 637 638 destination = (char *)ACPI_ADD_PTR(void, aml, 639 ACPI_GET16 640 (destination)); 641 source = *(u16 **)source; 642 acpi_rs_move_data(destination, source, item_count, 643 info->opcode); 644 break; 645 646 case ACPI_RSC_MOVE_GPIO_RES: 647 648 /* Used for both resource_source string and vendor_data */ 649 650 destination = (char *)ACPI_ADD_PTR(void, aml, 651 ACPI_GET16 652 (destination)); 653 source = *(u8 **)source; 654 acpi_rs_move_data(destination, source, item_count, 655 info->opcode); 656 break; 657 658 case ACPI_RSC_MOVE_SERIAL_VEN: 659 660 destination = (char *)ACPI_ADD_PTR(void, aml, 661 (aml_length - 662 item_count)); 663 source = *(u8 **)source; 664 acpi_rs_move_data(destination, source, item_count, 665 info->opcode); 666 break; 667 668 case ACPI_RSC_MOVE_SERIAL_RES: 669 670 destination = (char *)ACPI_ADD_PTR(void, aml, 671 (aml_length - 672 item_count)); 673 source = *(u8 **)source; 674 acpi_rs_move_data(destination, source, item_count, 675 info->opcode); 676 break; 677 678 case ACPI_RSC_ADDRESS: 679 680 /* Set the Resource Type, General Flags, and Type-Specific Flags */ 681 682 acpi_rs_set_address_common(aml, resource); 683 break; 684 685 case ACPI_RSC_SOURCEX: 686 /* 687 * Optional resource_source (Index and String) 688 */ 689 aml_length = 690 acpi_rs_set_resource_source(aml, 691 (acpi_rs_length) 692 aml_length, source); 693 acpi_rs_set_resource_length(aml_length, aml); 694 break; 695 696 case ACPI_RSC_SOURCE: 697 /* 698 * Optional resource_source (Index and String). This is the more 699 * complicated case used by the Interrupt() macro 700 */ 701 aml_length = 702 acpi_rs_set_resource_source(aml, info->value, 703 source); 704 acpi_rs_set_resource_length(aml_length, aml); 705 break; 706 707 case ACPI_RSC_BITMASK: 708 /* 709 * 8-bit encoded bitmask (DMA macro) 710 */ 711 ACPI_SET8(destination, 712 acpi_rs_encode_bitmask(source, 713 *ACPI_ADD_PTR(u8, 714 resource, 715 info-> 716 value))); 717 break; 718 719 case ACPI_RSC_BITMASK16: 720 /* 721 * 16-bit encoded bitmask (IRQ macro) 722 */ 723 temp16 = 724 acpi_rs_encode_bitmask(source, 725 *ACPI_ADD_PTR(u8, resource, 726 info->value)); 727 ACPI_MOVE_16_TO_16(destination, &temp16); 728 break; 729 730 case ACPI_RSC_EXIT_LE: 731 /* 732 * control - Exit conversion if less than or equal 733 */ 734 if (item_count <= info->value) { 735 goto exit; 736 } 737 break; 738 739 case ACPI_RSC_EXIT_NE: 740 /* 741 * control - Exit conversion if not equal 742 */ 743 switch (COMPARE_OPCODE(info)) { 744 case ACPI_RSC_COMPARE_VALUE: 745 746 if (*ACPI_ADD_PTR(u8, resource, 747 COMPARE_TARGET(info)) != 748 COMPARE_VALUE(info)) { 749 goto exit; 750 } 751 break; 752 753 default: 754 755 ACPI_ERROR((AE_INFO, 756 "Invalid conversion sub-opcode")); 757 return_ACPI_STATUS(AE_BAD_PARAMETER); 758 } 759 break; 760 761 case ACPI_RSC_EXIT_EQ: 762 /* 763 * control - Exit conversion if equal 764 */ 765 if (*ACPI_ADD_PTR(u8, resource, 766 COMPARE_TARGET(info)) == 767 COMPARE_VALUE(info)) { 768 goto exit; 769 } 770 break; 771 772 default: 773 774 ACPI_ERROR((AE_INFO, "Invalid conversion opcode")); 775 return_ACPI_STATUS(AE_BAD_PARAMETER); 776 } 777 778 count--; 779 info++; 780 } 781 782 exit: 783 return_ACPI_STATUS(AE_OK); 784 } 785 786 #if 0 787 /* Previous resource validations */ 788 789 if (aml->ext_address64.revision_ID != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) { 790 return_ACPI_STATUS(AE_SUPPORT); 791 } 792 793 if (resource->data.start_dpf.performance_robustness >= 3) { 794 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE); 795 } 796 797 if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) { 798 /* 799 * Only [active_high, edge_sensitive] or [active_low, level_sensitive] 800 * polarity/trigger interrupts are allowed (ACPI spec, section 801 * "IRQ Format"), so 0x00 and 0x09 are illegal. 802 */ 803 ACPI_ERROR((AE_INFO, 804 "Invalid interrupt polarity/trigger in resource list, 0x%X", 805 aml->irq.flags)); 806 return_ACPI_STATUS(AE_BAD_DATA); 807 } 808 809 resource->data.extended_irq.interrupt_count = temp8; 810 if (temp8 < 1) { 811 812 /* Must have at least one IRQ */ 813 814 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); 815 } 816 817 if (resource->data.dma.transfer == 0x03) { 818 ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)")); 819 return_ACPI_STATUS(AE_BAD_DATA); 820 } 821 #endif 822