dmwalk.c revision 151600
1/******************************************************************************* 2 * 3 * Module Name: dmwalk - AML disassembly tree walk 4 * $Revision: 14 $ 5 * 6 ******************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 118#include <contrib/dev/acpica/acpi.h> 119#include <contrib/dev/acpica/acparser.h> 120#include <contrib/dev/acpica/amlcode.h> 121#include <contrib/dev/acpica/acdisasm.h> 122#include <contrib/dev/acpica/acdebug.h> 123 124 125#ifdef ACPI_DISASSEMBLER 126 127#define _COMPONENT ACPI_CA_DEBUGGER 128 ACPI_MODULE_NAME ("dmwalk") 129 130 131#define DB_FULL_OP_INFO "%5.5X #%4.4hX " 132 133 134/******************************************************************************* 135 * 136 * FUNCTION: AcpiDmDisassemble 137 * 138 * PARAMETERS: Origin - Starting object 139 * NumOpcodes - Max number of opcodes to be displayed 140 * 141 * RETURN: None 142 * 143 * DESCRIPTION: Disassemble parser object and its children. This is the 144 * main entry point of the disassembler. 145 * 146 ******************************************************************************/ 147 148void 149AcpiDmDisassemble ( 150 ACPI_WALK_STATE *WalkState, 151 ACPI_PARSE_OBJECT *Origin, 152 UINT32 NumOpcodes) 153{ 154 ACPI_PARSE_OBJECT *Op = Origin; 155 ACPI_OP_WALK_INFO Info; 156 157 158 if (!Op) 159 { 160 return; 161 } 162 163 Info.Level = 0; 164 AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info); 165 166 return; 167} 168 169 170/******************************************************************************* 171 * 172 * FUNCTION: AcpiDmWalkParseTree 173 * 174 * PARAMETERS: DescendingCallback - Called during tree descent 175 * AscendingCallback - Called during tree ascent 176 * Context - To be passed to the callbacks 177 * 178 * RETURN: Status from callback(s) 179 * 180 * DESCRIPTION: Walk the entire parse tree. 181 * 182 ******************************************************************************/ 183 184void 185AcpiDmWalkParseTree ( 186 ACPI_PARSE_OBJECT *Op, 187 ASL_WALK_CALLBACK DescendingCallback, 188 ASL_WALK_CALLBACK AscendingCallback, 189 void *Context) 190{ 191 BOOLEAN NodePreviouslyVisited; 192 ACPI_PARSE_OBJECT *StartOp = Op; 193 ACPI_STATUS Status; 194 ACPI_PARSE_OBJECT *Next; 195 ACPI_OP_WALK_INFO *Info = Context; 196 197 198 Info->Level = 0; 199 NodePreviouslyVisited = FALSE; 200 201 while (Op) 202 { 203 if (NodePreviouslyVisited) 204 { 205 Status = AscendingCallback (Op, Info->Level, Context); 206 if (ACPI_FAILURE (Status)) 207 { 208 return; 209 } 210 } 211 else 212 { 213 /* Let the callback process the node */ 214 215 Status = DescendingCallback (Op, Info->Level, Context); 216 if (ACPI_SUCCESS (Status)) 217 { 218 /* Visit children first, once */ 219 220 Next = AcpiPsGetArg (Op, 0); 221 if (Next) 222 { 223 Info->Level++; 224 Op = Next; 225 continue; 226 } 227 } 228 else if (Status != AE_CTRL_DEPTH) 229 { 230 /* Exit immediately on any error */ 231 232 return; 233 } 234 } 235 236 /* Terminate walk at start op */ 237 238 if (Op == StartOp) 239 { 240 break; 241 } 242 243 /* No more children, re-visit this node */ 244 245 if (!NodePreviouslyVisited) 246 { 247 NodePreviouslyVisited = TRUE; 248 continue; 249 } 250 251 /* No more children, visit peers */ 252 253 if (Op->Common.Next) 254 { 255 Op = Op->Common.Next; 256 NodePreviouslyVisited = FALSE; 257 } 258 else 259 { 260 /* No peers, re-visit parent */ 261 262 if (Info->Level != 0 ) 263 { 264 Info->Level--; 265 } 266 267 Op = Op->Common.Parent; 268 NodePreviouslyVisited = TRUE; 269 } 270 } 271 272 /* If we get here, the walk completed with no errors */ 273 274 return; 275} 276 277 278/******************************************************************************* 279 * 280 * FUNCTION: AcpiDmBlockType 281 * 282 * PARAMETERS: Op - Object to be examined 283 * 284 * RETURN: Status 285 * 286 * DESCRIPTION: Type of block for this op (parens or braces) 287 * 288 ******************************************************************************/ 289 290UINT32 291AcpiDmBlockType ( 292 ACPI_PARSE_OBJECT *Op) 293{ 294 const ACPI_OPCODE_INFO *OpInfo; 295 296 297 if (!Op) 298 { 299 return (BLOCK_NONE); 300 } 301 302 switch (Op->Common.AmlOpcode) 303 { 304 case AML_ELSE_OP: 305 306 return (BLOCK_BRACE); 307 308 case AML_METHOD_OP: 309 case AML_DEVICE_OP: 310 case AML_SCOPE_OP: 311 case AML_PROCESSOR_OP: 312 case AML_POWER_RES_OP: 313 case AML_THERMAL_ZONE_OP: 314 case AML_IF_OP: 315 case AML_WHILE_OP: 316 case AML_FIELD_OP: 317 case AML_INDEX_FIELD_OP: 318 case AML_BANK_FIELD_OP: 319 320 return (BLOCK_PAREN | BLOCK_BRACE); 321 322 case AML_BUFFER_OP: 323 324 if (Op->Common.DisasmOpcode == ACPI_DASM_UNICODE) 325 { 326 return (BLOCK_NONE); 327 } 328 329 /*lint -fallthrough */ 330 331 case AML_PACKAGE_OP: 332 case AML_VAR_PACKAGE_OP: 333 334 return (BLOCK_PAREN | BLOCK_BRACE); 335 336 case AML_EVENT_OP: 337 338 return (BLOCK_PAREN); 339 340 default: 341 342 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 343 if (OpInfo->Flags & AML_HAS_ARGS) 344 { 345 return (BLOCK_PAREN); 346 } 347 348 return (BLOCK_NONE); 349 } 350} 351 352 353/******************************************************************************* 354 * 355 * FUNCTION: AcpiDmListType 356 * 357 * PARAMETERS: Op - Object to be examined 358 * 359 * RETURN: Status 360 * 361 * DESCRIPTION: Type of block for this op (parens or braces) 362 * 363 ******************************************************************************/ 364 365UINT32 366AcpiDmListType ( 367 ACPI_PARSE_OBJECT *Op) 368{ 369 const ACPI_OPCODE_INFO *OpInfo; 370 371 372 if (!Op) 373 { 374 return (BLOCK_NONE); 375 } 376 377 switch (Op->Common.AmlOpcode) 378 { 379 380 case AML_ELSE_OP: 381 case AML_METHOD_OP: 382 case AML_DEVICE_OP: 383 case AML_SCOPE_OP: 384 case AML_POWER_RES_OP: 385 case AML_PROCESSOR_OP: 386 case AML_THERMAL_ZONE_OP: 387 case AML_IF_OP: 388 case AML_WHILE_OP: 389 case AML_FIELD_OP: 390 case AML_INDEX_FIELD_OP: 391 case AML_BANK_FIELD_OP: 392 393 return (0); 394 395 case AML_BUFFER_OP: 396 case AML_PACKAGE_OP: 397 case AML_VAR_PACKAGE_OP: 398 399 return (BLOCK_COMMA_LIST); 400 401 default: 402 403 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 404 if (OpInfo->Flags & AML_HAS_ARGS) 405 { 406 return (BLOCK_COMMA_LIST); 407 } 408 409 return (BLOCK_NONE); 410 } 411} 412 413 414/******************************************************************************* 415 * 416 * FUNCTION: AcpiDmDescendingOp 417 * 418 * PARAMETERS: ASL_WALK_CALLBACK 419 * 420 * RETURN: Status 421 * 422 * DESCRIPTION: First visitation of a parse object during tree descent. 423 * Decode opcode name and begin parameter list(s), if any. 424 * 425 ******************************************************************************/ 426 427ACPI_STATUS 428AcpiDmDescendingOp ( 429 ACPI_PARSE_OBJECT *Op, 430 UINT32 Level, 431 void *Context) 432{ 433 ACPI_OP_WALK_INFO *Info = Context; 434 const ACPI_OPCODE_INFO *OpInfo; 435 UINT32 Name; 436 ACPI_PARSE_OBJECT *NextOp; 437 ACPI_EXTERNAL_LIST *NextExternal; 438 439 440 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 441 { 442 /* Ignore this op -- it was handled elsewhere */ 443 444 return (AE_CTRL_DEPTH); 445 } 446 447 /* Level 0 is at the Definition Block level */ 448 449 if (Level == 0) 450 { 451 /* In verbose mode, print the AML offset, opcode and depth count */ 452 453 VERBOSE_PRINT ((DB_FULL_OP_INFO, (UINT32) Op->Common.AmlOffset, 454 Op->Common.AmlOpcode)); 455 456 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 457 { 458 /* This is the beginning of the Definition Block */ 459 460 AcpiOsPrintf ("{\n"); 461 462 /* Emit all External() declarations here */ 463 464 if (AcpiGbl_ExternalList) 465 { 466 AcpiOsPrintf (" /*\n * These objects were referenced but not defined in this table\n */\n"); 467 468 /* Walk the list of externals (unresolved references) found during parsing */ 469 470 while (AcpiGbl_ExternalList) 471 { 472 AcpiOsPrintf (" External (%s, DeviceObj)\n", AcpiGbl_ExternalList->Path); 473 474 NextExternal = AcpiGbl_ExternalList->Next; 475 ACPI_MEM_FREE (AcpiGbl_ExternalList->Path); 476 ACPI_MEM_FREE (AcpiGbl_ExternalList); 477 AcpiGbl_ExternalList = NextExternal; 478 } 479 AcpiOsPrintf ("\n"); 480 } 481 482 return (AE_OK); 483 } 484 } 485 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 486 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 487 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 488 { 489 /* This is a first-level element of a term list, indent a new line */ 490 491 AcpiDmIndent (Level); 492 } 493 494 /* Print the opcode name */ 495 496 AcpiDmDisassembleOneOp (NULL, Info, Op); 497 498 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 499 (Op->Common.AmlOpcode == AML_RETURN_OP)) 500 { 501 Info->Level--; 502 } 503 504 /* Start the opcode argument list if necessary */ 505 506 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 507 508 if ((OpInfo->Flags & AML_HAS_ARGS) || 509 (Op->Common.AmlOpcode == AML_EVENT_OP)) 510 { 511 /* This opcode has an argument list */ 512 513 if (AcpiDmBlockType (Op) & BLOCK_PAREN) 514 { 515 AcpiOsPrintf (" ("); 516 } 517 518 /* If this is a named opcode, print the associated name value */ 519 520 if (OpInfo->Flags & AML_NAMED) 521 { 522 switch (Op->Common.AmlOpcode) 523 { 524 case AML_ALIAS_OP: 525 526 NextOp = AcpiPsGetDepthNext (NULL, Op); 527 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 528 AcpiDmNamestring (NextOp->Common.Value.Name); 529 AcpiOsPrintf (", "); 530 531 /*lint -fallthrough */ 532 533 default: 534 535 Name = AcpiPsGetName (Op); 536 if (Op->Named.Path) 537 { 538 AcpiDmNamestring ((char *) Op->Named.Path); 539 } 540 else 541 { 542 AcpiDmDumpName ((char *) &Name); 543 } 544 545 546 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP) 547 { 548 AcpiDmValidateName ((char *) &Name, Op); 549 if (AcpiGbl_DbOpt_verbose) 550 { 551 (void) AcpiPsDisplayObjectPathname (NULL, Op); 552 } 553 } 554 break; 555 } 556 557 switch (Op->Common.AmlOpcode) 558 { 559 case AML_METHOD_OP: 560 561 AcpiDmMethodFlags (Op); 562 AcpiOsPrintf (")"); 563 break; 564 565 566 case AML_NAME_OP: 567 568 /* Check for _HID and related EISAID() */ 569 570 AcpiIsEisaId (Op); 571 AcpiOsPrintf (", "); 572 break; 573 574 575 case AML_REGION_OP: 576 577 AcpiDmRegionFlags (Op); 578 break; 579 580 581 case AML_POWER_RES_OP: 582 583 /* Mark the next two Ops as part of the parameter list */ 584 585 AcpiOsPrintf (", "); 586 NextOp = AcpiPsGetDepthNext (NULL, Op); 587 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 588 589 NextOp = NextOp->Common.Next; 590 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 591 return (AE_OK); 592 593 594 case AML_PROCESSOR_OP: 595 596 /* Mark the next three Ops as part of the parameter list */ 597 598 AcpiOsPrintf (", "); 599 NextOp = AcpiPsGetDepthNext (NULL, Op); 600 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 601 602 NextOp = NextOp->Common.Next; 603 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 604 605 NextOp = NextOp->Common.Next; 606 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 607 return (AE_OK); 608 609 610 case AML_MUTEX_OP: 611 612 AcpiOsPrintf (", "); 613 return (AE_OK); 614 615 616 case AML_EVENT_OP: 617 case AML_ALIAS_OP: 618 619 return (AE_OK); 620 621 622 case AML_SCOPE_OP: 623 case AML_DEVICE_OP: 624 case AML_THERMAL_ZONE_OP: 625 626 AcpiOsPrintf (")"); 627 break; 628 629 630 default: 631 632 AcpiOsPrintf ("*** Unhandled named opcode\n"); 633 break; 634 } 635 } 636 637 else switch (Op->Common.AmlOpcode) 638 { 639 case AML_FIELD_OP: 640 case AML_BANK_FIELD_OP: 641 case AML_INDEX_FIELD_OP: 642 643 Info->BitOffset = 0; 644 645 /* Name of the parent OperationRegion */ 646 647 NextOp = AcpiPsGetDepthNext (NULL, Op); 648 AcpiDmNamestring (NextOp->Common.Value.Name); 649 AcpiOsPrintf (", "); 650 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 651 652 switch (Op->Common.AmlOpcode) 653 { 654 case AML_BANK_FIELD_OP: 655 656 /* Namestring */ 657 658 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 659 AcpiDmNamestring (NextOp->Common.Value.Name); 660 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 661 AcpiOsPrintf (", "); 662 663 664 NextOp = NextOp->Common.Next; 665 AcpiDmDisassembleOneOp (NULL, Info, NextOp); 666 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 667 AcpiOsPrintf (", "); 668 break; 669 670 case AML_INDEX_FIELD_OP: 671 672 /* Namestring */ 673 674 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 675 AcpiDmNamestring (NextOp->Common.Value.Name); 676 AcpiOsPrintf (", "); 677 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 678 break; 679 680 default: 681 682 break; 683 } 684 685 AcpiDmFieldFlags (NextOp); 686 break; 687 688 689 case AML_BUFFER_OP: 690 691 /* The next op is the size parameter */ 692 693 NextOp = AcpiPsGetDepthNext (NULL, Op); 694 if (!NextOp) 695 { 696 /* Single-step support */ 697 698 return (AE_OK); 699 } 700 701 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE) 702 { 703 /* 704 * We have a resource list. Don't need to output 705 * the buffer size Op. Open up a new block 706 */ 707 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 708 NextOp = NextOp->Common.Next; 709 AcpiOsPrintf (")\n"); 710 AcpiDmIndent (Info->Level); 711 AcpiOsPrintf ("{\n"); 712 return (AE_OK); 713 } 714 715 /* Normal Buffer, mark size as in the parameter list */ 716 717 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 718 return (AE_OK); 719 720 721 case AML_VAR_PACKAGE_OP: 722 case AML_IF_OP: 723 case AML_WHILE_OP: 724 725 /* The next op is the size or predicate parameter */ 726 727 NextOp = AcpiPsGetDepthNext (NULL, Op); 728 if (NextOp) 729 { 730 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 731 } 732 return (AE_OK); 733 734 735 case AML_PACKAGE_OP: 736 737 /* The next op is the size or predicate parameter */ 738 739 NextOp = AcpiPsGetDepthNext (NULL, Op); 740 if (NextOp) 741 { 742 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 743 } 744 return (AE_OK); 745 746 747 case AML_MATCH_OP: 748 749 AcpiDmMatchOp (Op); 750 break; 751 752 753 default: 754 755 break; 756 } 757 758 if (AcpiDmBlockType (Op) & BLOCK_BRACE) 759 { 760 AcpiOsPrintf ("\n"); 761 AcpiDmIndent (Level); 762 AcpiOsPrintf ("{\n"); 763 } 764 } 765 766 return (AE_OK); 767} 768 769 770/******************************************************************************* 771 * 772 * FUNCTION: AcpiDmAscendingOp 773 * 774 * PARAMETERS: ASL_WALK_CALLBACK 775 * 776 * RETURN: Status 777 * 778 * DESCRIPTION: Second visitation of a parse object, during ascent of parse 779 * tree. Close out any parameter lists and complete the opcode. 780 * 781 ******************************************************************************/ 782 783ACPI_STATUS 784AcpiDmAscendingOp ( 785 ACPI_PARSE_OBJECT *Op, 786 UINT32 Level, 787 void *Context) 788{ 789 ACPI_OP_WALK_INFO *Info = Context; 790 791 792 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 793 { 794 /* Ignore this op -- it was handled elsewhere */ 795 796 return (AE_OK); 797 } 798 799 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP)) 800 { 801 /* Indicates the end of the current descriptor block (table) */ 802 803 AcpiOsPrintf ("}\n\n"); 804 return (AE_OK); 805 } 806 807 switch (AcpiDmBlockType (Op)) 808 { 809 case BLOCK_PAREN: 810 811 /* Completed an op that has arguments, add closing paren */ 812 813 AcpiOsPrintf (")"); 814 815 /* Could be a nested operator, check if comma required */ 816 817 if (!AcpiDmCommaIfListMember (Op)) 818 { 819 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 820 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 821 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 822 { 823 /* This is a first-level element of a term list, start a new line */ 824 825 AcpiOsPrintf ("\n"); 826 } 827 } 828 break; 829 830 831 case BLOCK_BRACE: 832 case (BLOCK_BRACE | BLOCK_PAREN): 833 834 /* Completed an op that has a term list, add closing brace */ 835 836 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST) 837 { 838 AcpiOsPrintf ("}"); 839 } 840 else 841 { 842 AcpiDmIndent (Level); 843 AcpiOsPrintf ("}"); 844 } 845 846 AcpiDmCommaIfListMember (Op); 847 848 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN) 849 { 850 AcpiOsPrintf ("\n"); 851 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)) 852 { 853 if ((Op->Common.AmlOpcode == AML_IF_OP) && 854 (Op->Common.Next) && 855 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP)) 856 { 857 break; 858 } 859 860 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 861 (!Op->Common.Next)) 862 { 863 break; 864 } 865 AcpiOsPrintf ("\n"); 866 } 867 } 868 break; 869 870 871 case BLOCK_NONE: 872 default: 873 874 /* Could be a nested operator, check if comma required */ 875 876 if (!AcpiDmCommaIfListMember (Op)) 877 { 878 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 879 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 880 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 881 { 882 /* This is a first-level element of a term list, start a new line */ 883 884 AcpiOsPrintf ("\n"); 885 } 886 } 887 else if (Op->Common.Parent) 888 { 889 switch (Op->Common.Parent->Common.AmlOpcode) 890 { 891 case AML_PACKAGE_OP: 892 case AML_VAR_PACKAGE_OP: 893 894 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 895 { 896 AcpiOsPrintf ("\n"); 897 } 898 break; 899 900 default: 901 902 break; 903 } 904 } 905 break; 906 } 907 908 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST) 909 { 910 if ((Op->Common.Next) && 911 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 912 { 913 return (AE_OK); 914 } 915 916 /* 917 * Just completed a parameter node for something like "Buffer (param)". 918 * Close the paren and open up the term list block with a brace 919 */ 920 if (Op->Common.Next) 921 { 922 AcpiOsPrintf (")\n"); 923 AcpiDmIndent (Level - 1); 924 AcpiOsPrintf ("{\n"); 925 } 926 else 927 { 928 Op->Common.Parent->Common.DisasmFlags |= ACPI_PARSEOP_EMPTY_TERMLIST; 929 AcpiOsPrintf (") {"); 930 } 931 } 932 933 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 934 (Op->Common.AmlOpcode == AML_RETURN_OP)) 935 { 936 Info->Level++; 937 } 938 return (AE_OK); 939} 940 941 942#endif /* ACPI_DISASSEMBLER */ 943