1/****************************************************************************** 2 * 3 * Module Name: dswexec - Dispatcher method execution callbacks; 4 * dispatch to interpreter. 5 * 6 *****************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2012, 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#define __DSWEXEC_C__ 118 119#include "acpi.h" 120#include "accommon.h" 121#include "acparser.h" 122#include "amlcode.h" 123#include "acdispat.h" 124#include "acinterp.h" 125#include "acnamesp.h" 126#include "acdebug.h" 127 128 129#define _COMPONENT ACPI_DISPATCHER 130 ACPI_MODULE_NAME ("dswexec") 131 132/* 133 * Dispatch table for opcode classes 134 */ 135static ACPI_EXECUTE_OP AcpiGbl_OpTypeDispatch [] = 136{ 137 AcpiExOpcode_0A_0T_1R, 138 AcpiExOpcode_1A_0T_0R, 139 AcpiExOpcode_1A_0T_1R, 140 AcpiExOpcode_1A_1T_0R, 141 AcpiExOpcode_1A_1T_1R, 142 AcpiExOpcode_2A_0T_0R, 143 AcpiExOpcode_2A_0T_1R, 144 AcpiExOpcode_2A_1T_1R, 145 AcpiExOpcode_2A_2T_1R, 146 AcpiExOpcode_3A_0T_0R, 147 AcpiExOpcode_3A_1T_1R, 148 AcpiExOpcode_6A_0T_1R 149}; 150 151 152/***************************************************************************** 153 * 154 * FUNCTION: AcpiDsGetPredicateValue 155 * 156 * PARAMETERS: WalkState - Current state of the parse tree walk 157 * ResultObj - if non-zero, pop result from result stack 158 * 159 * RETURN: Status 160 * 161 * DESCRIPTION: Get the result of a predicate evaluation 162 * 163 ****************************************************************************/ 164 165ACPI_STATUS 166AcpiDsGetPredicateValue ( 167 ACPI_WALK_STATE *WalkState, 168 ACPI_OPERAND_OBJECT *ResultObj) 169{ 170 ACPI_STATUS Status = AE_OK; 171 ACPI_OPERAND_OBJECT *ObjDesc; 172 ACPI_OPERAND_OBJECT *LocalObjDesc = NULL; 173 174 175 ACPI_FUNCTION_TRACE_PTR (DsGetPredicateValue, WalkState); 176 177 178 WalkState->ControlState->Common.State = 0; 179 180 if (ResultObj) 181 { 182 Status = AcpiDsResultPop (&ObjDesc, WalkState); 183 if (ACPI_FAILURE (Status)) 184 { 185 ACPI_EXCEPTION ((AE_INFO, Status, 186 "Could not get result from predicate evaluation")); 187 188 return_ACPI_STATUS (Status); 189 } 190 } 191 else 192 { 193 Status = AcpiDsCreateOperand (WalkState, WalkState->Op, 0); 194 if (ACPI_FAILURE (Status)) 195 { 196 return_ACPI_STATUS (Status); 197 } 198 199 Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState); 200 if (ACPI_FAILURE (Status)) 201 { 202 return_ACPI_STATUS (Status); 203 } 204 205 ObjDesc = WalkState->Operands [0]; 206 } 207 208 if (!ObjDesc) 209 { 210 ACPI_ERROR ((AE_INFO, 211 "No predicate ObjDesc=%p State=%p", 212 ObjDesc, WalkState)); 213 214 return_ACPI_STATUS (AE_AML_NO_OPERAND); 215 } 216 217 /* 218 * Result of predicate evaluation must be an Integer 219 * object. Implicitly convert the argument if necessary. 220 */ 221 Status = AcpiExConvertToInteger (ObjDesc, &LocalObjDesc, 16); 222 if (ACPI_FAILURE (Status)) 223 { 224 goto Cleanup; 225 } 226 227 if (LocalObjDesc->Common.Type != ACPI_TYPE_INTEGER) 228 { 229 ACPI_ERROR ((AE_INFO, 230 "Bad predicate (not an integer) ObjDesc=%p State=%p Type=0x%X", 231 ObjDesc, WalkState, ObjDesc->Common.Type)); 232 233 Status = AE_AML_OPERAND_TYPE; 234 goto Cleanup; 235 } 236 237 /* Truncate the predicate to 32-bits if necessary */ 238 239 AcpiExTruncateFor32bitTable (LocalObjDesc); 240 241 /* 242 * Save the result of the predicate evaluation on 243 * the control stack 244 */ 245 if (LocalObjDesc->Integer.Value) 246 { 247 WalkState->ControlState->Common.Value = TRUE; 248 } 249 else 250 { 251 /* 252 * Predicate is FALSE, we will just toss the 253 * rest of the package 254 */ 255 WalkState->ControlState->Common.Value = FALSE; 256 Status = AE_CTRL_FALSE; 257 } 258 259 /* Predicate can be used for an implicit return value */ 260 261 (void) AcpiDsDoImplicitReturn (LocalObjDesc, WalkState, TRUE); 262 263 264Cleanup: 265 266 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n", 267 WalkState->ControlState->Common.Value, WalkState->Op)); 268 269 /* Break to debugger to display result */ 270 271 ACPI_DEBUGGER_EXEC (AcpiDbDisplayResultObject (LocalObjDesc, WalkState)); 272 273 /* 274 * Delete the predicate result object (we know that 275 * we don't need it anymore) 276 */ 277 if (LocalObjDesc != ObjDesc) 278 { 279 AcpiUtRemoveReference (LocalObjDesc); 280 } 281 AcpiUtRemoveReference (ObjDesc); 282 283 WalkState->ControlState->Common.State = ACPI_CONTROL_NORMAL; 284 return_ACPI_STATUS (Status); 285} 286 287 288/***************************************************************************** 289 * 290 * FUNCTION: AcpiDsExecBeginOp 291 * 292 * PARAMETERS: WalkState - Current state of the parse tree walk 293 * OutOp - Where to return op if a new one is created 294 * 295 * RETURN: Status 296 * 297 * DESCRIPTION: Descending callback used during the execution of control 298 * methods. This is where most operators and operands are 299 * dispatched to the interpreter. 300 * 301 ****************************************************************************/ 302 303ACPI_STATUS 304AcpiDsExecBeginOp ( 305 ACPI_WALK_STATE *WalkState, 306 ACPI_PARSE_OBJECT **OutOp) 307{ 308 ACPI_PARSE_OBJECT *Op; 309 ACPI_STATUS Status = AE_OK; 310 UINT32 OpcodeClass; 311 312 313 ACPI_FUNCTION_TRACE_PTR (DsExecBeginOp, WalkState); 314 315 316 Op = WalkState->Op; 317 if (!Op) 318 { 319 Status = AcpiDsLoad2BeginOp (WalkState, OutOp); 320 if (ACPI_FAILURE (Status)) 321 { 322 goto ErrorExit; 323 } 324 325 Op = *OutOp; 326 WalkState->Op = Op; 327 WalkState->Opcode = Op->Common.AmlOpcode; 328 WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 329 330 if (AcpiNsOpensScope (WalkState->OpInfo->ObjectType)) 331 { 332 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 333 "(%s) Popping scope for Op %p\n", 334 AcpiUtGetTypeName (WalkState->OpInfo->ObjectType), Op)); 335 336 Status = AcpiDsScopeStackPop (WalkState); 337 if (ACPI_FAILURE (Status)) 338 { 339 goto ErrorExit; 340 } 341 } 342 } 343 344 if (Op == WalkState->Origin) 345 { 346 if (OutOp) 347 { 348 *OutOp = Op; 349 } 350 351 return_ACPI_STATUS (AE_OK); 352 } 353 354 /* 355 * If the previous opcode was a conditional, this opcode 356 * must be the beginning of the associated predicate. 357 * Save this knowledge in the current scope descriptor 358 */ 359 if ((WalkState->ControlState) && 360 (WalkState->ControlState->Common.State == 361 ACPI_CONTROL_CONDITIONAL_EXECUTING)) 362 { 363 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Exec predicate Op=%p State=%p\n", 364 Op, WalkState)); 365 366 WalkState->ControlState->Common.State = ACPI_CONTROL_PREDICATE_EXECUTING; 367 368 /* Save start of predicate */ 369 370 WalkState->ControlState->Control.PredicateOp = Op; 371 } 372 373 374 OpcodeClass = WalkState->OpInfo->Class; 375 376 /* We want to send namepaths to the load code */ 377 378 if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) 379 { 380 OpcodeClass = AML_CLASS_NAMED_OBJECT; 381 } 382 383 /* 384 * Handle the opcode based upon the opcode type 385 */ 386 switch (OpcodeClass) 387 { 388 case AML_CLASS_CONTROL: 389 390 Status = AcpiDsExecBeginControlOp (WalkState, Op); 391 break; 392 393 394 case AML_CLASS_NAMED_OBJECT: 395 396 if (WalkState->WalkType & ACPI_WALK_METHOD) 397 { 398 /* 399 * Found a named object declaration during method execution; 400 * we must enter this object into the namespace. The created 401 * object is temporary and will be deleted upon completion of 402 * the execution of this method. 403 * 404 * Note 10/2010: Except for the Scope() op. This opcode does 405 * not actually create a new object, it refers to an existing 406 * object. However, for Scope(), we want to indeed open a 407 * new scope. 408 */ 409 if (Op->Common.AmlOpcode != AML_SCOPE_OP) 410 { 411 Status = AcpiDsLoad2BeginOp (WalkState, NULL); 412 } 413 else 414 { 415 Status = AcpiDsScopeStackPush (Op->Named.Node, 416 Op->Named.Node->Type, WalkState); 417 if (ACPI_FAILURE (Status)) 418 { 419 return_ACPI_STATUS (Status); 420 } 421 } 422 } 423 break; 424 425 426 case AML_CLASS_EXECUTE: 427 case AML_CLASS_CREATE: 428 429 break; 430 431 432 default: 433 break; 434 } 435 436 /* Nothing to do here during method execution */ 437 438 return_ACPI_STATUS (Status); 439 440 441ErrorExit: 442 Status = AcpiDsMethodError (Status, WalkState); 443 return_ACPI_STATUS (Status); 444} 445 446 447/***************************************************************************** 448 * 449 * FUNCTION: AcpiDsExecEndOp 450 * 451 * PARAMETERS: WalkState - Current state of the parse tree walk 452 * 453 * RETURN: Status 454 * 455 * DESCRIPTION: Ascending callback used during the execution of control 456 * methods. The only thing we really need to do here is to 457 * notice the beginning of IF, ELSE, and WHILE blocks. 458 * 459 ****************************************************************************/ 460 461ACPI_STATUS 462AcpiDsExecEndOp ( 463 ACPI_WALK_STATE *WalkState) 464{ 465 ACPI_PARSE_OBJECT *Op; 466 ACPI_STATUS Status = AE_OK; 467 UINT32 OpType; 468 UINT32 OpClass; 469 ACPI_PARSE_OBJECT *NextOp; 470 ACPI_PARSE_OBJECT *FirstArg; 471 472 473 ACPI_FUNCTION_TRACE_PTR (DsExecEndOp, WalkState); 474 475 476 Op = WalkState->Op; 477 OpType = WalkState->OpInfo->Type; 478 OpClass = WalkState->OpInfo->Class; 479 480 if (OpClass == AML_CLASS_UNKNOWN) 481 { 482 ACPI_ERROR ((AE_INFO, "Unknown opcode 0x%X", Op->Common.AmlOpcode)); 483 return_ACPI_STATUS (AE_NOT_IMPLEMENTED); 484 } 485 486 FirstArg = Op->Common.Value.Arg; 487 488 /* Init the walk state */ 489 490 WalkState->NumOperands = 0; 491 WalkState->OperandIndex = 0; 492 WalkState->ReturnDesc = NULL; 493 WalkState->ResultObj = NULL; 494 495 /* Call debugger for single step support (DEBUG build only) */ 496 497 ACPI_DEBUGGER_EXEC (Status = AcpiDbSingleStep (WalkState, Op, OpClass)); 498 ACPI_DEBUGGER_EXEC (if (ACPI_FAILURE (Status)) {return_ACPI_STATUS (Status);}); 499 500 /* Decode the Opcode Class */ 501 502 switch (OpClass) 503 { 504 case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */ 505 506 if (WalkState->Opcode == AML_INT_NAMEPATH_OP) 507 { 508 Status = AcpiDsEvaluateNamePath (WalkState); 509 if (ACPI_FAILURE (Status)) 510 { 511 goto Cleanup; 512 } 513 } 514 break; 515 516 517 case AML_CLASS_EXECUTE: /* Most operators with arguments */ 518 519 /* Build resolved operand stack */ 520 521 Status = AcpiDsCreateOperands (WalkState, FirstArg); 522 if (ACPI_FAILURE (Status)) 523 { 524 goto Cleanup; 525 } 526 527 /* 528 * All opcodes require operand resolution, with the only exceptions 529 * being the ObjectType and SizeOf operators. 530 */ 531 if (!(WalkState->OpInfo->Flags & AML_NO_OPERAND_RESOLVE)) 532 { 533 /* Resolve all operands */ 534 535 Status = AcpiExResolveOperands (WalkState->Opcode, 536 &(WalkState->Operands [WalkState->NumOperands -1]), 537 WalkState); 538 } 539 540 if (ACPI_SUCCESS (Status)) 541 { 542 /* 543 * Dispatch the request to the appropriate interpreter handler 544 * routine. There is one routine per opcode "type" based upon the 545 * number of opcode arguments and return type. 546 */ 547 Status = AcpiGbl_OpTypeDispatch[OpType] (WalkState); 548 } 549 else 550 { 551 /* 552 * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the 553 * Local is uninitialized. 554 */ 555 if ((Status == AE_AML_UNINITIALIZED_LOCAL) && 556 (WalkState->Opcode == AML_STORE_OP) && 557 (WalkState->Operands[0]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && 558 (WalkState->Operands[1]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && 559 (WalkState->Operands[0]->Reference.Class == 560 WalkState->Operands[1]->Reference.Class) && 561 (WalkState->Operands[0]->Reference.Value == 562 WalkState->Operands[1]->Reference.Value)) 563 { 564 Status = AE_OK; 565 } 566 else 567 { 568 ACPI_EXCEPTION ((AE_INFO, Status, 569 "While resolving operands for [%s]", 570 AcpiPsGetOpcodeName (WalkState->Opcode))); 571 } 572 } 573 574 /* Always delete the argument objects and clear the operand stack */ 575 576 AcpiDsClearOperands (WalkState); 577 578 /* 579 * If a result object was returned from above, push it on the 580 * current result stack 581 */ 582 if (ACPI_SUCCESS (Status) && 583 WalkState->ResultObj) 584 { 585 Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); 586 } 587 break; 588 589 590 default: 591 592 switch (OpType) 593 { 594 case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ 595 596 /* 1 Operand, 0 ExternalResult, 0 InternalResult */ 597 598 Status = AcpiDsExecEndControlOp (WalkState, Op); 599 600 break; 601 602 603 case AML_TYPE_METHOD_CALL: 604 605 /* 606 * If the method is referenced from within a package 607 * declaration, it is not a invocation of the method, just 608 * a reference to it. 609 */ 610 if ((Op->Asl.Parent) && 611 ((Op->Asl.Parent->Asl.AmlOpcode == AML_PACKAGE_OP) || 612 (Op->Asl.Parent->Asl.AmlOpcode == AML_VAR_PACKAGE_OP))) 613 { 614 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 615 "Method Reference in a Package, Op=%p\n", Op)); 616 617 Op->Common.Node = (ACPI_NAMESPACE_NODE *) Op->Asl.Value.Arg->Asl.Node; 618 AcpiUtAddReference (Op->Asl.Value.Arg->Asl.Node->Object); 619 return_ACPI_STATUS (AE_OK); 620 } 621 622 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Method invocation, Op=%p\n", Op)); 623 624 /* 625 * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains 626 * the method Node pointer 627 */ 628 /* NextOp points to the op that holds the method name */ 629 630 NextOp = FirstArg; 631 632 /* NextOp points to first argument op */ 633 634 NextOp = NextOp->Common.Next; 635 636 /* 637 * Get the method's arguments and put them on the operand stack 638 */ 639 Status = AcpiDsCreateOperands (WalkState, NextOp); 640 if (ACPI_FAILURE (Status)) 641 { 642 break; 643 } 644 645 /* 646 * Since the operands will be passed to another control method, 647 * we must resolve all local references here (Local variables, 648 * arguments to *this* method, etc.) 649 */ 650 Status = AcpiDsResolveOperands (WalkState); 651 if (ACPI_FAILURE (Status)) 652 { 653 /* On error, clear all resolved operands */ 654 655 AcpiDsClearOperands (WalkState); 656 break; 657 } 658 659 /* 660 * Tell the walk loop to preempt this running method and 661 * execute the new method 662 */ 663 Status = AE_CTRL_TRANSFER; 664 665 /* 666 * Return now; we don't want to disturb anything, 667 * especially the operand count! 668 */ 669 return_ACPI_STATUS (Status); 670 671 672 case AML_TYPE_CREATE_FIELD: 673 674 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 675 "Executing CreateField Buffer/Index Op=%p\n", Op)); 676 677 Status = AcpiDsLoad2EndOp (WalkState); 678 if (ACPI_FAILURE (Status)) 679 { 680 break; 681 } 682 683 Status = AcpiDsEvalBufferFieldOperands (WalkState, Op); 684 break; 685 686 687 case AML_TYPE_CREATE_OBJECT: 688 689 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 690 "Executing CreateObject (Buffer/Package) Op=%p\n", Op)); 691 692 switch (Op->Common.Parent->Common.AmlOpcode) 693 { 694 case AML_NAME_OP: 695 696 /* 697 * Put the Node on the object stack (Contains the ACPI Name 698 * of this object) 699 */ 700 WalkState->Operands[0] = (void *) Op->Common.Parent->Common.Node; 701 WalkState->NumOperands = 1; 702 703 Status = AcpiDsCreateNode (WalkState, 704 Op->Common.Parent->Common.Node, 705 Op->Common.Parent); 706 if (ACPI_FAILURE (Status)) 707 { 708 break; 709 } 710 711 /* Fall through */ 712 /*lint -fallthrough */ 713 714 case AML_INT_EVAL_SUBTREE_OP: 715 716 Status = AcpiDsEvalDataObjectOperands (WalkState, Op, 717 AcpiNsGetAttachedObject (Op->Common.Parent->Common.Node)); 718 break; 719 720 default: 721 722 Status = AcpiDsEvalDataObjectOperands (WalkState, Op, NULL); 723 break; 724 } 725 726 /* 727 * If a result object was returned from above, push it on the 728 * current result stack 729 */ 730 if (WalkState->ResultObj) 731 { 732 Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); 733 } 734 break; 735 736 737 case AML_TYPE_NAMED_FIELD: 738 case AML_TYPE_NAMED_COMPLEX: 739 case AML_TYPE_NAMED_SIMPLE: 740 case AML_TYPE_NAMED_NO_OBJ: 741 742 Status = AcpiDsLoad2EndOp (WalkState); 743 if (ACPI_FAILURE (Status)) 744 { 745 break; 746 } 747 748 if (Op->Common.AmlOpcode == AML_REGION_OP) 749 { 750 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 751 "Executing OpRegion Address/Length Op=%p\n", Op)); 752 753 Status = AcpiDsEvalRegionOperands (WalkState, Op); 754 if (ACPI_FAILURE (Status)) 755 { 756 break; 757 } 758 } 759 else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) 760 { 761 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 762 "Executing DataTableRegion Strings Op=%p\n", Op)); 763 764 Status = AcpiDsEvalTableRegionOperands (WalkState, Op); 765 if (ACPI_FAILURE (Status)) 766 { 767 break; 768 } 769 } 770 else if (Op->Common.AmlOpcode == AML_BANK_FIELD_OP) 771 { 772 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 773 "Executing BankField Op=%p\n", Op)); 774 775 Status = AcpiDsEvalBankFieldOperands (WalkState, Op); 776 if (ACPI_FAILURE (Status)) 777 { 778 break; 779 } 780 } 781 break; 782 783 784 case AML_TYPE_UNDEFINED: 785 786 ACPI_ERROR ((AE_INFO, 787 "Undefined opcode type Op=%p", Op)); 788 return_ACPI_STATUS (AE_NOT_IMPLEMENTED); 789 790 791 case AML_TYPE_BOGUS: 792 793 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 794 "Internal opcode=%X type Op=%p\n", 795 WalkState->Opcode, Op)); 796 break; 797 798 799 default: 800 801 ACPI_ERROR ((AE_INFO, 802 "Unimplemented opcode, class=0x%X type=0x%X Opcode=-0x%X Op=%p", 803 OpClass, OpType, Op->Common.AmlOpcode, Op)); 804 805 Status = AE_NOT_IMPLEMENTED; 806 break; 807 } 808 } 809 810 /* 811 * ACPI 2.0 support for 64-bit integers: Truncate numeric 812 * result value if we are executing from a 32-bit ACPI table 813 */ 814 AcpiExTruncateFor32bitTable (WalkState->ResultObj); 815 816 /* 817 * Check if we just completed the evaluation of a 818 * conditional predicate 819 */ 820 if ((ACPI_SUCCESS (Status)) && 821 (WalkState->ControlState) && 822 (WalkState->ControlState->Common.State == 823 ACPI_CONTROL_PREDICATE_EXECUTING) && 824 (WalkState->ControlState->Control.PredicateOp == Op)) 825 { 826 Status = AcpiDsGetPredicateValue (WalkState, WalkState->ResultObj); 827 WalkState->ResultObj = NULL; 828 } 829 830 831Cleanup: 832 833 if (WalkState->ResultObj) 834 { 835 /* Break to debugger to display result */ 836 837 ACPI_DEBUGGER_EXEC (AcpiDbDisplayResultObject (WalkState->ResultObj, 838 WalkState)); 839 840 /* 841 * Delete the result op if and only if: 842 * Parent will not use the result -- such as any 843 * non-nested type2 op in a method (parent will be method) 844 */ 845 AcpiDsDeleteResultIfNotUsed (Op, WalkState->ResultObj, WalkState); 846 } 847 848#ifdef _UNDER_DEVELOPMENT 849 850 if (WalkState->ParserState.Aml == WalkState->ParserState.AmlEnd) 851 { 852 AcpiDbMethodEnd (WalkState); 853 } 854#endif 855 856 /* Invoke exception handler on error */ 857 858 if (ACPI_FAILURE (Status)) 859 { 860 Status = AcpiDsMethodError (Status, WalkState); 861 } 862 863 /* Always clear the object stack */ 864 865 WalkState->NumOperands = 0; 866 return_ACPI_STATUS (Status); 867} 868