1 /******************************************************************************* 2 * 3 * Module Name: dmbuffer - AML disassembler, buffer and string support 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2020, 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 "acutils.h" 47 #include "acdisasm.h" 48 #include "acparser.h" 49 #include "amlcode.h" 50 #include "acinterp.h" 51 52 53 #define _COMPONENT ACPI_CA_DEBUGGER 54 ACPI_MODULE_NAME ("dmbuffer") 55 56 /* Local prototypes */ 57 58 static void 59 AcpiDmUuid ( 60 ACPI_PARSE_OBJECT *Op); 61 62 static void 63 AcpiDmUnicode ( 64 ACPI_PARSE_OBJECT *Op); 65 66 static void 67 AcpiDmGetHardwareIdType ( 68 ACPI_PARSE_OBJECT *Op); 69 70 static void 71 AcpiDmPldBuffer ( 72 UINT32 Level, 73 UINT8 *ByteData, 74 UINT32 ByteCount); 75 76 static const char * 77 AcpiDmFindNameByIndex ( 78 UINT64 Index, 79 const char **List); 80 81 82 #define ACPI_BUFFER_BYTES_PER_LINE 8 83 84 85 /******************************************************************************* 86 * 87 * FUNCTION: AcpiDmDisasmByteList 88 * 89 * PARAMETERS: Level - Current source code indentation level 90 * ByteData - Pointer to the byte list 91 * ByteCount - Length of the byte list 92 * 93 * RETURN: None 94 * 95 * DESCRIPTION: Dump an AML "ByteList" in Hex format. 8 bytes per line, prefixed 96 * with the hex buffer offset. 97 * 98 ******************************************************************************/ 99 100 void 101 AcpiDmDisasmByteList ( 102 UINT32 Level, 103 UINT8 *ByteData, 104 UINT32 ByteCount) 105 { 106 UINT32 i; 107 UINT32 j; 108 UINT32 CurrentIndex; 109 UINT8 BufChar; 110 111 112 if (!ByteCount) 113 { 114 return; 115 } 116 117 for (i = 0; i < ByteCount; i += ACPI_BUFFER_BYTES_PER_LINE) 118 { 119 /* Line indent and offset prefix for each new line */ 120 121 AcpiDmIndent (Level); 122 if (ByteCount > ACPI_BUFFER_BYTES_PER_LINE) 123 { 124 AcpiOsPrintf ("/* %04X */ ", i); 125 } 126 127 /* Dump the actual hex values */ 128 129 for (j = 0; j < ACPI_BUFFER_BYTES_PER_LINE; j++) 130 { 131 CurrentIndex = i + j; 132 if (CurrentIndex >= ByteCount) 133 { 134 /* Dump fill spaces */ 135 136 AcpiOsPrintf (" "); 137 continue; 138 } 139 140 AcpiOsPrintf (" 0x%2.2X", ByteData[CurrentIndex]); 141 142 /* Add comma if there are more bytes to display */ 143 144 if (CurrentIndex < (ByteCount - 1)) 145 { 146 AcpiOsPrintf (","); 147 } 148 else 149 { 150 AcpiOsPrintf (" "); 151 } 152 } 153 154 /* Dump the ASCII equivalents within a comment */ 155 156 AcpiOsPrintf (" // "); 157 for (j = 0; j < ACPI_BUFFER_BYTES_PER_LINE; j++) 158 { 159 CurrentIndex = i + j; 160 if (CurrentIndex >= ByteCount) 161 { 162 break; 163 } 164 165 BufChar = ByteData[CurrentIndex]; 166 if (isprint (BufChar)) 167 { 168 AcpiOsPrintf ("%c", BufChar); 169 } 170 else 171 { 172 AcpiOsPrintf ("."); 173 } 174 } 175 176 /* Finished with this line */ 177 178 AcpiOsPrintf ("\n"); 179 } 180 } 181 182 183 /******************************************************************************* 184 * 185 * FUNCTION: AcpiDmByteList 186 * 187 * PARAMETERS: Info - Parse tree walk info 188 * Op - Byte list op 189 * 190 * RETURN: None 191 * 192 * DESCRIPTION: Dump a buffer byte list, handling the various types of buffers. 193 * Buffer type must be already set in the Op DisasmOpcode. 194 * 195 ******************************************************************************/ 196 197 void 198 AcpiDmByteList ( 199 ACPI_OP_WALK_INFO *Info, 200 ACPI_PARSE_OBJECT *Op) 201 { 202 UINT8 *ByteData; 203 UINT32 ByteCount; 204 205 206 ByteData = Op->Named.Data; 207 ByteCount = (UINT32) Op->Common.Value.Integer; 208 209 /* 210 * The byte list belongs to a buffer, and can be produced by either 211 * a ResourceTemplate, Unicode, quoted string, or a plain byte list. 212 */ 213 switch (Op->Common.Parent->Common.DisasmOpcode) 214 { 215 case ACPI_DASM_RESOURCE: 216 217 AcpiDmResourceTemplate ( 218 Info, Op->Common.Parent, ByteData, ByteCount); 219 break; 220 221 case ACPI_DASM_STRING: 222 223 AcpiDmIndent (Info->Level); 224 AcpiUtPrintString ((char *) ByteData, ACPI_UINT16_MAX); 225 AcpiOsPrintf ("\n"); 226 break; 227 228 case ACPI_DASM_UUID: 229 230 AcpiDmUuid (Op); 231 break; 232 233 case ACPI_DASM_UNICODE: 234 235 AcpiDmUnicode (Op); 236 break; 237 238 case ACPI_DASM_PLD_METHOD: 239 #if 0 240 AcpiDmDisasmByteList (Info->Level, ByteData, ByteCount); 241 #endif 242 AcpiDmPldBuffer (Info->Level, ByteData, ByteCount); 243 break; 244 245 case ACPI_DASM_BUFFER: 246 default: 247 /* 248 * Not a resource, string, or unicode string. 249 * Just dump the buffer 250 */ 251 AcpiDmDisasmByteList (Info->Level, ByteData, ByteCount); 252 break; 253 } 254 } 255 256 257 /******************************************************************************* 258 * 259 * FUNCTION: AcpiDmIsUuidBuffer 260 * 261 * PARAMETERS: Op - Buffer Object to be examined 262 * 263 * RETURN: TRUE if buffer contains a UUID 264 * 265 * DESCRIPTION: Determine if a buffer Op contains a UUID 266 * 267 * To help determine whether the buffer is a UUID versus a raw data buffer, 268 * there a are a couple bytes we can look at: 269 * 270 * xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx 271 * 272 * The variant covered by the UUID specification is indicated by the two most 273 * significant bits of N being 1 0 (i.e., the hexadecimal N will always be 274 * 8, 9, A, or B). 275 * 276 * The variant covered by the UUID specification has five versions. For this 277 * variant, the four bits of M indicates the UUID version (i.e., the 278 * hexadecimal M will be either 1, 2, 3, 4, or 5). 279 * 280 ******************************************************************************/ 281 282 BOOLEAN 283 AcpiDmIsUuidBuffer ( 284 ACPI_PARSE_OBJECT *Op) 285 { 286 UINT8 *ByteData; 287 UINT32 ByteCount; 288 ACPI_PARSE_OBJECT *SizeOp; 289 ACPI_PARSE_OBJECT *NextOp; 290 291 292 /* Buffer size is the buffer argument */ 293 294 SizeOp = Op->Common.Value.Arg; 295 if (!SizeOp) 296 { 297 return (FALSE); 298 } 299 300 /* Next, the initializer byte list to examine */ 301 302 NextOp = SizeOp->Common.Next; 303 if (!NextOp) 304 { 305 return (FALSE); 306 } 307 308 /* Extract the byte list info */ 309 310 ByteData = NextOp->Named.Data; 311 ByteCount = (UINT32) NextOp->Common.Value.Integer; 312 313 /* Byte count must be exactly 16 */ 314 315 if (ByteCount != UUID_BUFFER_LENGTH) 316 { 317 return (FALSE); 318 } 319 320 /* Check for valid "M" and "N" values (see function header above) */ 321 322 if (((ByteData[7] & 0xF0) == 0x00) || /* M={1,2,3,4,5} */ 323 ((ByteData[7] & 0xF0) > 0x50) || 324 ((ByteData[8] & 0xF0) < 0x80) || /* N={8,9,A,B} */ 325 ((ByteData[8] & 0xF0) > 0xB0)) 326 { 327 return (FALSE); 328 } 329 330 /* Ignore the Size argument in the disassembly of this buffer op */ 331 332 SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 333 return (TRUE); 334 } 335 336 337 /******************************************************************************* 338 * 339 * FUNCTION: AcpiDmUuid 340 * 341 * PARAMETERS: Op - Byte List op containing a UUID 342 * 343 * RETURN: None 344 * 345 * DESCRIPTION: Dump a buffer containing a UUID as a standard ASCII string. 346 * 347 * Output Format: 348 * In its canonical form, the UUID is represented by a string containing 32 349 * lowercase hexadecimal digits, displayed in 5 groups separated by hyphens. 350 * The complete form is 8-4-4-4-12 for a total of 36 characters (32 351 * alphanumeric characters representing hex digits and 4 hyphens). In bytes, 352 * 4-2-2-2-6. Example: 353 * 354 * ToUUID ("107ededd-d381-4fd7-8da9-08e9a6c79644") 355 * 356 ******************************************************************************/ 357 358 static void 359 AcpiDmUuid ( 360 ACPI_PARSE_OBJECT *Op) 361 { 362 UINT8 *Data; 363 const char *Description; 364 365 366 Data = ACPI_CAST_PTR (UINT8, Op->Named.Data); 367 368 /* Emit the 36-byte UUID string in the proper format/order */ 369 370 AcpiOsPrintf ( 371 "\"%2.2x%2.2x%2.2x%2.2x-" 372 "%2.2x%2.2x-" 373 "%2.2x%2.2x-" 374 "%2.2x%2.2x-" 375 "%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x\")", 376 Data[3], Data[2], Data[1], Data[0], 377 Data[5], Data[4], 378 Data[7], Data[6], 379 Data[8], Data[9], 380 Data[10], Data[11], Data[12], Data[13], Data[14], Data[15]); 381 382 /* Dump the UUID description string if available */ 383 384 Description = AcpiAhMatchUuid (Data); 385 if (Description) 386 { 387 AcpiOsPrintf (" /* %s */", Description); 388 } 389 } 390 391 392 /******************************************************************************* 393 * 394 * FUNCTION: AcpiDmIsUnicodeBuffer 395 * 396 * PARAMETERS: Op - Buffer Object to be examined 397 * 398 * RETURN: TRUE if buffer contains a UNICODE string 399 * 400 * DESCRIPTION: Determine if a buffer Op contains a Unicode string 401 * 402 ******************************************************************************/ 403 404 BOOLEAN 405 AcpiDmIsUnicodeBuffer ( 406 ACPI_PARSE_OBJECT *Op) 407 { 408 UINT8 *ByteData; 409 UINT32 ByteCount; 410 UINT32 WordCount; 411 ACPI_PARSE_OBJECT *SizeOp; 412 ACPI_PARSE_OBJECT *NextOp; 413 UINT32 i; 414 415 416 /* Buffer size is the buffer argument */ 417 418 SizeOp = Op->Common.Value.Arg; 419 if (!SizeOp) 420 { 421 return (FALSE); 422 } 423 424 /* Next, the initializer byte list to examine */ 425 426 NextOp = SizeOp->Common.Next; 427 if (!NextOp) 428 { 429 return (FALSE); 430 } 431 432 /* Extract the byte list info */ 433 434 ByteData = NextOp->Named.Data; 435 ByteCount = (UINT32) NextOp->Common.Value.Integer; 436 WordCount = ACPI_DIV_2 (ByteCount); 437 438 /* 439 * Unicode string must have an even number of bytes and last 440 * word must be zero 441 */ 442 if ((!ByteCount) || 443 (ByteCount < 4) || 444 (ByteCount & 1) || 445 ((UINT16 *) (void *) ByteData)[WordCount - 1] != 0) 446 { 447 return (FALSE); 448 } 449 450 /* 451 * For each word, 1st byte must be printable ascii, and the 452 * 2nd byte must be zero. This does not allow for escape 453 * sequences, but it is the most secure way to detect a 454 * unicode string. 455 */ 456 for (i = 0; i < (ByteCount - 2); i += 2) 457 { 458 if ((ByteData[i] == 0) || 459 !(isprint (ByteData[i])) || 460 (ByteData[(ACPI_SIZE) i + 1] != 0)) 461 { 462 return (FALSE); 463 } 464 } 465 466 /* Ignore the Size argument in the disassembly of this buffer op */ 467 468 SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 469 return (TRUE); 470 } 471 472 473 /******************************************************************************* 474 * 475 * FUNCTION: AcpiDmIsStringBuffer 476 * 477 * PARAMETERS: Op - Buffer Object to be examined 478 * 479 * RETURN: TRUE if buffer contains a ASCII string, FALSE otherwise 480 * 481 * DESCRIPTION: Determine if a buffer Op contains a ASCII string 482 * 483 ******************************************************************************/ 484 485 BOOLEAN 486 AcpiDmIsStringBuffer ( 487 ACPI_PARSE_OBJECT *Op) 488 { 489 UINT8 *ByteData; 490 UINT32 ByteCount; 491 ACPI_PARSE_OBJECT *SizeOp; 492 ACPI_PARSE_OBJECT *NextOp; 493 UINT32 i; 494 495 496 /* Buffer size is the buffer argument */ 497 498 SizeOp = Op->Common.Value.Arg; 499 if (!SizeOp) 500 { 501 return (FALSE); 502 } 503 504 /* Next, the initializer byte list to examine */ 505 506 NextOp = SizeOp->Common.Next; 507 if (!NextOp) 508 { 509 return (FALSE); 510 } 511 512 /* Extract the byte list info */ 513 514 ByteData = NextOp->Named.Data; 515 ByteCount = (UINT32) NextOp->Common.Value.Integer; 516 517 /* Last byte must be the null terminator */ 518 519 if ((!ByteCount) || 520 (ByteCount < 2) || 521 (ByteData[ByteCount-1] != 0)) 522 { 523 return (FALSE); 524 } 525 526 /* 527 * Check for a possible standalone resource EndTag, ignore it 528 * here. However, this sequence is also the string "Y", but 529 * this seems rare enough to be acceptable. 530 */ 531 if ((ByteCount == 2) && (ByteData[0] == 0x79)) 532 { 533 return (FALSE); 534 } 535 536 /* Check all bytes for ASCII */ 537 538 for (i = 0; i < (ByteCount - 1); i++) 539 { 540 /* 541 * TBD: allow some escapes (non-ascii chars). 542 * they will be handled in the string output routine 543 */ 544 545 /* Not a string if not printable ascii */ 546 547 if (!isprint (ByteData[i])) 548 { 549 return (FALSE); 550 } 551 } 552 553 return (TRUE); 554 } 555 556 557 /******************************************************************************* 558 * 559 * FUNCTION: AcpiDmIsPldBuffer 560 * 561 * PARAMETERS: Op - Buffer Object to be examined 562 * 563 * RETURN: TRUE if buffer appears to contain data produced via the 564 * ToPLD macro, FALSE otherwise 565 * 566 * DESCRIPTION: Determine if a buffer Op contains a _PLD structure 567 * 568 ******************************************************************************/ 569 570 BOOLEAN 571 AcpiDmIsPldBuffer ( 572 ACPI_PARSE_OBJECT *Op) 573 { 574 ACPI_NAMESPACE_NODE *Node; 575 ACPI_PARSE_OBJECT *SizeOp; 576 ACPI_PARSE_OBJECT *ByteListOp; 577 ACPI_PARSE_OBJECT *ParentOp; 578 UINT64 BufferSize; 579 UINT64 InitializerSize; 580 581 582 if (!Op) 583 { 584 return (FALSE); 585 } 586 587 /* 588 * Get the BufferSize argument - Buffer(BufferSize) 589 * If the buffer was generated by the ToPld macro, it must 590 * be a BYTE constant. 591 */ 592 SizeOp = Op->Common.Value.Arg; 593 if (!SizeOp || SizeOp->Common.AmlOpcode != AML_BYTE_OP) 594 { 595 return (FALSE); 596 } 597 598 /* Check the declared BufferSize, two possibilities */ 599 600 BufferSize = SizeOp->Common.Value.Integer; 601 if ((BufferSize != ACPI_PLD_REV1_BUFFER_SIZE) && 602 (BufferSize != ACPI_PLD_REV2_BUFFER_SIZE)) 603 { 604 return (FALSE); 605 } 606 607 /* 608 * Check the initializer list length. This is the actual 609 * number of bytes in the buffer as counted by the AML parser. 610 * The declared BufferSize can be larger than the actual length. 611 * However, for the ToPLD macro, the BufferSize will be the same 612 * as the initializer list length. 613 */ 614 ByteListOp = SizeOp->Common.Next; 615 if (!ByteListOp) 616 { 617 return (FALSE); /* Zero-length buffer case */ 618 } 619 620 InitializerSize = ByteListOp->Common.Value.Integer; 621 if ((InitializerSize != ACPI_PLD_REV1_BUFFER_SIZE) && 622 (InitializerSize != ACPI_PLD_REV2_BUFFER_SIZE)) 623 { 624 return (FALSE); 625 } 626 627 /* Final size check */ 628 629 if (BufferSize != InitializerSize) 630 { 631 return (FALSE); 632 } 633 634 /* Now examine the buffer parent */ 635 636 ParentOp = Op->Common.Parent; 637 if (!ParentOp) 638 { 639 return (FALSE); 640 } 641 642 /* Check for form: Name(_PLD, Buffer() {}). Not legal, however */ 643 644 if (ParentOp->Common.AmlOpcode == AML_NAME_OP) 645 { 646 Node = ParentOp->Common.Node; 647 648 if (ACPI_COMPARE_NAMESEG (Node->Name.Ascii, METHOD_NAME__PLD)) 649 { 650 /* Ignore the Size argument in the disassembly of this buffer op */ 651 652 SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 653 return (TRUE); 654 } 655 656 return (FALSE); 657 } 658 659 /* 660 * Check for proper form: Name(_PLD, Package() {ToPLD()}) 661 * 662 * Note: All other forms such as 663 * Return (Package() {ToPLD()}) 664 * Local0 = ToPLD() 665 * etc. are not converted back to the ToPLD macro, because 666 * there is really no deterministic way to disassemble the buffer 667 * back to the ToPLD macro, other than trying to find the "_PLD" 668 * name 669 */ 670 if (ParentOp->Common.AmlOpcode == AML_PACKAGE_OP) 671 { 672 ParentOp = ParentOp->Common.Parent; 673 if (!ParentOp) 674 { 675 return (FALSE); 676 } 677 678 if (ParentOp->Common.AmlOpcode == AML_NAME_OP) 679 { 680 Node = ParentOp->Common.Node; 681 682 if (ACPI_COMPARE_NAMESEG (Node->Name.Ascii, METHOD_NAME__PLD)) 683 { 684 /* Ignore the Size argument in the disassembly of this buffer op */ 685 686 SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 687 return (TRUE); 688 } 689 } 690 } 691 692 return (FALSE); 693 } 694 695 696 /******************************************************************************* 697 * 698 * FUNCTION: AcpiDmFindNameByIndex 699 * 700 * PARAMETERS: Index - Index of array to check 701 * List - Array to reference 702 * 703 * RETURN: String from List or empty string 704 * 705 * DESCRIPTION: Finds and returns the char string located at the given index 706 * position in List. 707 * 708 ******************************************************************************/ 709 710 static const char * 711 AcpiDmFindNameByIndex ( 712 UINT64 Index, 713 const char **List) 714 { 715 const char *NameString; 716 UINT32 i; 717 718 719 /* Bounds check */ 720 721 NameString = List[0]; 722 i = 0; 723 724 while (NameString) 725 { 726 i++; 727 NameString = List[i]; 728 } 729 730 if (Index >= i) 731 { 732 /* TBD: Add error msg */ 733 734 return (""); 735 } 736 737 return (List[Index]); 738 } 739 740 741 /******************************************************************************* 742 * 743 * FUNCTION: AcpiDmPldBuffer 744 * 745 * PARAMETERS: Level - Current source code indentation level 746 * ByteData - Pointer to the byte list 747 * ByteCount - Length of the byte list 748 * 749 * RETURN: None 750 * 751 * DESCRIPTION: Dump and format the contents of a _PLD buffer object 752 * 753 ******************************************************************************/ 754 755 #define ACPI_PLD_OUTPUT08 "%*.s%-22s = 0x%X,\n", ACPI_MUL_4 (Level), " " 756 #define ACPI_PLD_OUTPUT08P "%*.s%-22s = 0x%X)\n", ACPI_MUL_4 (Level), " " 757 #define ACPI_PLD_OUTPUT16 "%*.s%-22s = 0x%X,\n", ACPI_MUL_4 (Level), " " 758 #define ACPI_PLD_OUTPUT16P "%*.s%-22s = 0x%X)\n", ACPI_MUL_4 (Level), " " 759 #define ACPI_PLD_OUTPUT24 "%*.s%-22s = 0x%X,\n", ACPI_MUL_4 (Level), " " 760 #define ACPI_PLD_OUTPUTSTR "%*.s%-22s = \"%s\",\n", ACPI_MUL_4 (Level), " " 761 762 static void 763 AcpiDmPldBuffer ( 764 UINT32 Level, 765 UINT8 *ByteData, 766 UINT32 ByteCount) 767 { 768 ACPI_PLD_INFO *PldInfo; 769 ACPI_STATUS Status; 770 771 772 /* Check for valid byte count */ 773 774 if (ByteCount < ACPI_PLD_REV1_BUFFER_SIZE) 775 { 776 return; 777 } 778 779 /* Convert _PLD buffer to local _PLD struct */ 780 781 Status = AcpiDecodePldBuffer (ByteData, ByteCount, &PldInfo); 782 if (ACPI_FAILURE (Status)) 783 { 784 return; 785 } 786 787 AcpiOsPrintf ("\n"); 788 789 /* First 32-bit dword */ 790 791 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Revision", PldInfo->Revision); 792 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_IgnoreColor", PldInfo->IgnoreColor); 793 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Red", PldInfo->Red); 794 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Green", PldInfo->Green); 795 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Blue", PldInfo->Blue); 796 797 /* Second 32-bit dword */ 798 799 AcpiOsPrintf (ACPI_PLD_OUTPUT16, "PLD_Width", PldInfo->Width); 800 AcpiOsPrintf (ACPI_PLD_OUTPUT16, "PLD_Height", PldInfo->Height); 801 802 /* Third 32-bit dword */ 803 804 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_UserVisible", PldInfo->UserVisible); 805 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Dock", PldInfo->Dock); 806 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Lid", PldInfo->Lid); 807 AcpiOsPrintf (ACPI_PLD_OUTPUTSTR, "PLD_Panel", 808 AcpiDmFindNameByIndex(PldInfo->Panel, AcpiGbl_PldPanelList)); 809 810 AcpiOsPrintf (ACPI_PLD_OUTPUTSTR, "PLD_VerticalPosition", 811 AcpiDmFindNameByIndex(PldInfo->VerticalPosition, AcpiGbl_PldVerticalPositionList)); 812 813 AcpiOsPrintf (ACPI_PLD_OUTPUTSTR, "PLD_HorizontalPosition", 814 AcpiDmFindNameByIndex(PldInfo->HorizontalPosition, AcpiGbl_PldHorizontalPositionList)); 815 816 AcpiOsPrintf (ACPI_PLD_OUTPUTSTR, "PLD_Shape", 817 AcpiDmFindNameByIndex(PldInfo->Shape, AcpiGbl_PldShapeList)); 818 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_GroupOrientation", PldInfo->GroupOrientation); 819 820 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_GroupToken", PldInfo->GroupToken); 821 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_GroupPosition", PldInfo->GroupPosition); 822 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Bay", PldInfo->Bay); 823 824 /* Fourth 32-bit dword */ 825 826 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Ejectable", PldInfo->Ejectable); 827 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_EjectRequired", PldInfo->OspmEjectRequired); 828 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_CabinetNumber", PldInfo->CabinetNumber); 829 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_CardCageNumber", PldInfo->CardCageNumber); 830 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Reference", PldInfo->Reference); 831 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Rotation", PldInfo->Rotation); 832 833 if (ByteCount >= ACPI_PLD_REV2_BUFFER_SIZE) 834 { 835 AcpiOsPrintf (ACPI_PLD_OUTPUT08, "PLD_Order", PldInfo->Order); 836 837 /* Fifth 32-bit dword */ 838 839 AcpiOsPrintf (ACPI_PLD_OUTPUT16, "PLD_VerticalOffset", PldInfo->VerticalOffset); 840 AcpiOsPrintf (ACPI_PLD_OUTPUT16P, "PLD_HorizontalOffset", PldInfo->HorizontalOffset); 841 } 842 else /* Rev 1 buffer */ 843 { 844 AcpiOsPrintf (ACPI_PLD_OUTPUT08P, "PLD_Order", PldInfo->Order); 845 } 846 847 ACPI_FREE (PldInfo); 848 } 849 850 851 /******************************************************************************* 852 * 853 * FUNCTION: AcpiDmUnicode 854 * 855 * PARAMETERS: Op - Byte List op containing Unicode string 856 * 857 * RETURN: None 858 * 859 * DESCRIPTION: Dump Unicode string as a standard ASCII string. (Remove 860 * the extra zero bytes). 861 * 862 ******************************************************************************/ 863 864 static void 865 AcpiDmUnicode ( 866 ACPI_PARSE_OBJECT *Op) 867 { 868 UINT16 *WordData; 869 UINT32 WordCount; 870 UINT32 i; 871 int OutputValue; 872 873 874 /* Extract the buffer info as a WORD buffer */ 875 876 WordData = ACPI_CAST_PTR (UINT16, Op->Named.Data); 877 WordCount = ACPI_DIV_2 (((UINT32) Op->Common.Value.Integer)); 878 879 /* Write every other byte as an ASCII character */ 880 881 AcpiOsPrintf ("\""); 882 for (i = 0; i < (WordCount - 1); i++) 883 { 884 OutputValue = (int) WordData[i]; 885 886 /* Handle values that must be escaped */ 887 888 if ((OutputValue == '\"') || 889 (OutputValue == '\\')) 890 { 891 AcpiOsPrintf ("\\%c", OutputValue); 892 } 893 else if (!isprint (OutputValue)) 894 { 895 AcpiOsPrintf ("\\x%2.2X", OutputValue); 896 } 897 else 898 { 899 AcpiOsPrintf ("%c", OutputValue); 900 } 901 } 902 903 AcpiOsPrintf ("\")"); 904 } 905 906 907 /******************************************************************************* 908 * 909 * FUNCTION: AcpiDmGetHardwareIdType 910 * 911 * PARAMETERS: Op - Op to be examined 912 * 913 * RETURN: None 914 * 915 * DESCRIPTION: Determine the type of the argument to a _HID or _CID 916 * 1) Strings are allowed 917 * 2) If Integer, determine if it is a valid EISAID 918 * 919 ******************************************************************************/ 920 921 static void 922 AcpiDmGetHardwareIdType ( 923 ACPI_PARSE_OBJECT *Op) 924 { 925 UINT32 BigEndianId; 926 UINT32 Prefix[3]; 927 UINT32 i; 928 929 930 switch (Op->Common.AmlOpcode) 931 { 932 case AML_STRING_OP: 933 934 /* Mark this string as an _HID/_CID string */ 935 936 Op->Common.DisasmOpcode = ACPI_DASM_HID_STRING; 937 break; 938 939 case AML_WORD_OP: 940 case AML_DWORD_OP: 941 942 /* Determine if a Word/Dword is a valid encoded EISAID */ 943 944 /* Swap from little-endian to big-endian to simplify conversion */ 945 946 BigEndianId = AcpiUtDwordByteSwap ((UINT32) Op->Common.Value.Integer); 947 948 /* Create the 3 leading ASCII letters */ 949 950 Prefix[0] = ((BigEndianId >> 26) & 0x1F) + 0x40; 951 Prefix[1] = ((BigEndianId >> 21) & 0x1F) + 0x40; 952 Prefix[2] = ((BigEndianId >> 16) & 0x1F) + 0x40; 953 954 /* Verify that all 3 are ascii and alpha */ 955 956 for (i = 0; i < 3; i++) 957 { 958 if (!ACPI_IS_ASCII (Prefix[i]) || 959 !isalpha (Prefix[i])) 960 { 961 return; 962 } 963 } 964 965 /* Mark this node as convertible to an EISA ID string */ 966 967 Op->Common.DisasmOpcode = ACPI_DASM_EISAID; 968 break; 969 970 default: 971 break; 972 } 973 } 974 975 976 /******************************************************************************* 977 * 978 * FUNCTION: AcpiDmCheckForHardwareId 979 * 980 * PARAMETERS: Op - Op to be examined 981 * 982 * RETURN: None 983 * 984 * DESCRIPTION: Determine if a Name() Op is a _HID/_CID. 985 * 986 ******************************************************************************/ 987 988 void 989 AcpiDmCheckForHardwareId ( 990 ACPI_PARSE_OBJECT *Op) 991 { 992 UINT32 Name; 993 ACPI_PARSE_OBJECT *NextOp; 994 995 996 /* Get the NameSegment */ 997 998 Name = AcpiPsGetName (Op); 999 if (!Name) 1000 { 1001 return; 1002 } 1003 1004 NextOp = AcpiPsGetDepthNext (NULL, Op); 1005 if (!NextOp) 1006 { 1007 return; 1008 } 1009 1010 /* Check for _HID - has one argument */ 1011 1012 if (ACPI_COMPARE_NAMESEG (&Name, METHOD_NAME__HID)) 1013 { 1014 AcpiDmGetHardwareIdType (NextOp); 1015 return; 1016 } 1017 1018 /* Exit if not _CID */ 1019 1020 if (!ACPI_COMPARE_NAMESEG (&Name, METHOD_NAME__CID)) 1021 { 1022 return; 1023 } 1024 1025 /* _CID can contain a single argument or a package */ 1026 1027 if (NextOp->Common.AmlOpcode != AML_PACKAGE_OP) 1028 { 1029 AcpiDmGetHardwareIdType (NextOp); 1030 return; 1031 } 1032 1033 /* _CID with Package: get the package length, check all elements */ 1034 1035 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 1036 if (!NextOp) 1037 { 1038 return; 1039 } 1040 1041 /* Don't need to use the length, just walk the peer list */ 1042 1043 NextOp = NextOp->Common.Next; 1044 while (NextOp) 1045 { 1046 AcpiDmGetHardwareIdType (NextOp); 1047 NextOp = NextOp->Common.Next; 1048 } 1049 } 1050 1051 1052 /******************************************************************************* 1053 * 1054 * FUNCTION: AcpiDmDecompressEisaId 1055 * 1056 * PARAMETERS: EncodedId - Raw encoded EISA ID. 1057 * 1058 * RETURN: None 1059 * 1060 * DESCRIPTION: Convert an encoded EISAID back to the original ASCII String 1061 * and emit the correct ASL statement. If the ID is known, emit 1062 * a description of the ID as a comment. 1063 * 1064 ******************************************************************************/ 1065 1066 void 1067 AcpiDmDecompressEisaId ( 1068 UINT32 EncodedId) 1069 { 1070 char IdBuffer[ACPI_EISAID_STRING_SIZE]; 1071 const AH_DEVICE_ID *Info; 1072 1073 1074 /* Convert EISAID to a string an emit the statement */ 1075 1076 AcpiExEisaIdToString (IdBuffer, EncodedId); 1077 AcpiOsPrintf ("EisaId (\"%s\")", IdBuffer); 1078 1079 /* If we know about the ID, emit the description */ 1080 1081 Info = AcpiAhMatchHardwareId (IdBuffer); 1082 if (Info) 1083 { 1084 AcpiOsPrintf (" /* %s */", Info->Description); 1085 } 1086 } 1087