1 /****************************************************************************** 2 * 3 * Module Name: dswload2 - Dispatcher second pass namespace load callbacks 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "acpi.h" 153 #include "accommon.h" 154 #include "acparser.h" 155 #include "amlcode.h" 156 #include "acdispat.h" 157 #include "acinterp.h" 158 #include "acnamesp.h" 159 #include "acevents.h" 160 #ifdef ACPI_EXEC_APP 161 #include "aecommon.h" 162 #endif 163 164 #define _COMPONENT ACPI_DISPATCHER 165 ACPI_MODULE_NAME ("dswload2") 166 167 168 /******************************************************************************* 169 * 170 * FUNCTION: AcpiDsLoad2BeginOp 171 * 172 * PARAMETERS: WalkState - Current state of the parse tree walk 173 * OutOp - Where to return op if a new one is created 174 * 175 * RETURN: Status 176 * 177 * DESCRIPTION: Descending callback used during the loading of ACPI tables. 178 * 179 ******************************************************************************/ 180 181 ACPI_STATUS 182 AcpiDsLoad2BeginOp ( 183 ACPI_WALK_STATE *WalkState, 184 ACPI_PARSE_OBJECT **OutOp) 185 { 186 ACPI_PARSE_OBJECT *Op; 187 ACPI_NAMESPACE_NODE *Node; 188 ACPI_STATUS Status; 189 ACPI_OBJECT_TYPE ObjectType; 190 char *BufferPtr; 191 UINT32 Flags; 192 193 194 ACPI_FUNCTION_TRACE (DsLoad2BeginOp); 195 196 197 Op = WalkState->Op; 198 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); 199 200 if (Op) 201 { 202 if ((WalkState->ControlState) && 203 (WalkState->ControlState->Common.State == 204 ACPI_CONTROL_CONDITIONAL_EXECUTING)) 205 { 206 /* We are executing a while loop outside of a method */ 207 208 Status = AcpiDsExecBeginOp (WalkState, OutOp); 209 return_ACPI_STATUS (Status); 210 } 211 212 /* We only care about Namespace opcodes here */ 213 214 if ((!(WalkState->OpInfo->Flags & AML_NSOPCODE) && 215 (WalkState->Opcode != AML_INT_NAMEPATH_OP)) || 216 (!(WalkState->OpInfo->Flags & AML_NAMED))) 217 { 218 return_ACPI_STATUS (AE_OK); 219 } 220 221 /* Get the name we are going to enter or lookup in the namespace */ 222 223 if (WalkState->Opcode == AML_INT_NAMEPATH_OP) 224 { 225 /* For Namepath op, get the path string */ 226 227 BufferPtr = Op->Common.Value.String; 228 if (!BufferPtr) 229 { 230 /* No name, just exit */ 231 232 return_ACPI_STATUS (AE_OK); 233 } 234 } 235 else 236 { 237 /* Get name from the op */ 238 239 BufferPtr = ACPI_CAST_PTR (char, &Op->Named.Name); 240 } 241 } 242 else 243 { 244 /* Get the namestring from the raw AML */ 245 246 BufferPtr = AcpiPsGetNextNamestring (&WalkState->ParserState); 247 } 248 249 /* Map the opcode into an internal object type */ 250 251 ObjectType = WalkState->OpInfo->ObjectType; 252 253 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 254 "State=%p Op=%p Type=%X\n", WalkState, Op, ObjectType)); 255 256 switch (WalkState->Opcode) 257 { 258 case AML_FIELD_OP: 259 case AML_BANK_FIELD_OP: 260 case AML_INDEX_FIELD_OP: 261 262 Node = NULL; 263 Status = AE_OK; 264 break; 265 266 case AML_INT_NAMEPATH_OP: 267 /* 268 * The NamePath is an object reference to an existing object. 269 * Don't enter the name into the namespace, but look it up 270 * for use later. 271 */ 272 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, 273 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, 274 WalkState, &(Node)); 275 break; 276 277 case AML_SCOPE_OP: 278 279 /* Special case for Scope(\) -> refers to the Root node */ 280 281 if (Op && (Op->Named.Node == AcpiGbl_RootNode)) 282 { 283 Node = Op->Named.Node; 284 285 Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState); 286 if (ACPI_FAILURE (Status)) 287 { 288 return_ACPI_STATUS (Status); 289 } 290 } 291 else 292 { 293 /* 294 * The Path is an object reference to an existing object. 295 * Don't enter the name into the namespace, but look it up 296 * for use later. 297 */ 298 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, 299 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, 300 WalkState, &(Node)); 301 if (ACPI_FAILURE (Status)) 302 { 303 #ifdef ACPI_ASL_COMPILER 304 if (Status == AE_NOT_FOUND) 305 { 306 Status = AE_OK; 307 } 308 else 309 { 310 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 311 BufferPtr, Status); 312 } 313 #else 314 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 315 BufferPtr, Status); 316 #endif 317 return_ACPI_STATUS (Status); 318 } 319 } 320 321 /* 322 * We must check to make sure that the target is 323 * one of the opcodes that actually opens a scope 324 */ 325 switch (Node->Type) 326 { 327 case ACPI_TYPE_ANY: 328 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ 329 case ACPI_TYPE_DEVICE: 330 case ACPI_TYPE_POWER: 331 case ACPI_TYPE_PROCESSOR: 332 case ACPI_TYPE_THERMAL: 333 334 /* These are acceptable types */ 335 break; 336 337 case ACPI_TYPE_INTEGER: 338 case ACPI_TYPE_STRING: 339 case ACPI_TYPE_BUFFER: 340 341 /* 342 * These types we will allow, but we will change the type. 343 * This enables some existing code of the form: 344 * 345 * Name (DEB, 0) 346 * Scope (DEB) { ... } 347 */ 348 ACPI_WARNING ((AE_INFO, 349 "Type override - [%4.4s] had invalid type (%s) " 350 "for Scope operator, changed to type ANY", 351 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type))); 352 353 Node->Type = ACPI_TYPE_ANY; 354 WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY; 355 break; 356 357 case ACPI_TYPE_METHOD: 358 359 /* 360 * Allow scope change to root during execution of module-level 361 * code. Root is typed METHOD during this time. 362 */ 363 if ((Node == AcpiGbl_RootNode) && 364 (WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) 365 { 366 break; 367 } 368 369 ACPI_FALLTHROUGH; 370 371 default: 372 373 /* All other types are an error */ 374 375 ACPI_ERROR ((AE_INFO, 376 "Invalid type (%s) for target of " 377 "Scope operator [%4.4s] (Cannot override)", 378 AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node))); 379 380 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 381 } 382 break; 383 384 default: 385 386 /* All other opcodes */ 387 388 if (Op && Op->Common.Node) 389 { 390 /* This op/node was previously entered into the namespace */ 391 392 Node = Op->Common.Node; 393 394 if (AcpiNsOpensScope (ObjectType)) 395 { 396 Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState); 397 if (ACPI_FAILURE (Status)) 398 { 399 return_ACPI_STATUS (Status); 400 } 401 } 402 403 return_ACPI_STATUS (AE_OK); 404 } 405 406 /* 407 * Enter the named type into the internal namespace. We enter the name 408 * as we go downward in the parse tree. Any necessary subobjects that 409 * involve arguments to the opcode must be created as we go back up the 410 * parse tree later. 411 * 412 * Note: Name may already exist if we are executing a deferred opcode. 413 */ 414 if (WalkState->DeferredNode) 415 { 416 /* This name is already in the namespace, get the node */ 417 418 Node = WalkState->DeferredNode; 419 Status = AE_OK; 420 break; 421 } 422 423 Flags = ACPI_NS_NO_UPSEARCH; 424 if (WalkState->PassNumber == ACPI_IMODE_EXECUTE) 425 { 426 /* Execution mode, node cannot already exist, node is temporary */ 427 428 Flags |= ACPI_NS_ERROR_IF_FOUND; 429 430 if (!(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) 431 { 432 Flags |= ACPI_NS_TEMPORARY; 433 } 434 } 435 436 #ifdef ACPI_ASL_COMPILER 437 438 /* 439 * Do not open a scope for AML_EXTERNAL_OP 440 * AcpiNsLookup can open a new scope based on the object type 441 * of this op. AML_EXTERNAL_OP is a declaration rather than a 442 * definition. In the case that this external is a method object, 443 * AcpiNsLookup will open a new scope. However, an AML_EXTERNAL_OP 444 * associated with the ACPI_TYPE_METHOD is a declaration, rather than 445 * a definition. Flags is set to avoid opening a scope for any 446 * AML_EXTERNAL_OP. 447 */ 448 if (WalkState->Opcode == AML_EXTERNAL_OP) 449 { 450 Flags |= ACPI_NS_DONT_OPEN_SCOPE; 451 } 452 #endif 453 454 /* 455 * For name creation opcodes, the full namepath prefix must 456 * exist, except for the final (new) nameseg. 457 */ 458 if (WalkState->OpInfo->Flags & AML_NAMED) 459 { 460 Flags |= ACPI_NS_PREFIX_MUST_EXIST; 461 } 462 463 /* Add new entry or lookup existing entry */ 464 465 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, 466 ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node); 467 468 if (ACPI_SUCCESS (Status) && (Flags & ACPI_NS_TEMPORARY)) 469 { 470 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 471 "***New Node [%4.4s] %p is temporary\n", 472 AcpiUtGetNodeName (Node), Node)); 473 } 474 break; 475 } 476 477 if (ACPI_FAILURE (Status)) 478 { 479 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 480 BufferPtr, Status); 481 return_ACPI_STATUS (Status); 482 } 483 484 if (!Op) 485 { 486 /* Create a new op */ 487 488 Op = AcpiPsAllocOp (WalkState->Opcode, WalkState->Aml); 489 if (!Op) 490 { 491 return_ACPI_STATUS (AE_NO_MEMORY); 492 } 493 494 /* Initialize the new op */ 495 496 if (Node) 497 { 498 Op->Named.Name = Node->Name.Integer; 499 } 500 *OutOp = Op; 501 } 502 503 /* 504 * Put the Node in the "op" object that the parser uses, so we 505 * can get it again quickly when this scope is closed 506 */ 507 Op->Common.Node = Node; 508 return_ACPI_STATUS (Status); 509 } 510 511 512 /******************************************************************************* 513 * 514 * FUNCTION: AcpiDsLoad2EndOp 515 * 516 * PARAMETERS: WalkState - Current state of the parse tree walk 517 * 518 * RETURN: Status 519 * 520 * DESCRIPTION: Ascending callback used during the loading of the namespace, 521 * both control methods and everything else. 522 * 523 ******************************************************************************/ 524 525 ACPI_STATUS 526 AcpiDsLoad2EndOp ( 527 ACPI_WALK_STATE *WalkState) 528 { 529 ACPI_PARSE_OBJECT *Op; 530 ACPI_STATUS Status = AE_OK; 531 ACPI_OBJECT_TYPE ObjectType; 532 ACPI_NAMESPACE_NODE *Node; 533 ACPI_PARSE_OBJECT *Arg; 534 ACPI_NAMESPACE_NODE *NewNode; 535 UINT32 i; 536 UINT8 RegionSpace; 537 #ifdef ACPI_EXEC_APP 538 ACPI_OPERAND_OBJECT *ObjDesc; 539 char *Namepath; 540 #endif 541 542 543 ACPI_FUNCTION_TRACE (DsLoad2EndOp); 544 545 Op = WalkState->Op; 546 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", 547 WalkState->OpInfo->Name, Op, WalkState)); 548 549 /* Check if opcode had an associated namespace object */ 550 551 if (!(WalkState->OpInfo->Flags & AML_NSOBJECT)) 552 { 553 return_ACPI_STATUS (AE_OK); 554 } 555 556 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 557 { 558 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 559 "Ending scope Op=%p State=%p\n", Op, WalkState)); 560 } 561 562 ObjectType = WalkState->OpInfo->ObjectType; 563 564 /* 565 * Get the Node/name from the earlier lookup 566 * (It was saved in the *op structure) 567 */ 568 Node = Op->Common.Node; 569 570 /* 571 * Put the Node on the object stack (Contains the ACPI Name of 572 * this object) 573 */ 574 WalkState->Operands[0] = (void *) Node; 575 WalkState->NumOperands = 1; 576 577 /* Pop the scope stack */ 578 579 if (AcpiNsOpensScope (ObjectType) && 580 (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP)) 581 { 582 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n", 583 AcpiUtGetTypeName (ObjectType), Op)); 584 585 Status = AcpiDsScopeStackPop (WalkState); 586 if (ACPI_FAILURE (Status)) 587 { 588 goto Cleanup; 589 } 590 } 591 592 /* 593 * Named operations are as follows: 594 * 595 * AML_ALIAS 596 * AML_BANKFIELD 597 * AML_CREATEBITFIELD 598 * AML_CREATEBYTEFIELD 599 * AML_CREATEDWORDFIELD 600 * AML_CREATEFIELD 601 * AML_CREATEQWORDFIELD 602 * AML_CREATEWORDFIELD 603 * AML_DATA_REGION 604 * AML_DEVICE 605 * AML_EVENT 606 * AML_FIELD 607 * AML_INDEXFIELD 608 * AML_METHOD 609 * AML_METHODCALL 610 * AML_MUTEX 611 * AML_NAME 612 * AML_NAMEDFIELD 613 * AML_OPREGION 614 * AML_POWERRES 615 * AML_PROCESSOR 616 * AML_SCOPE 617 * AML_THERMALZONE 618 */ 619 620 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 621 "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", 622 AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node)); 623 624 /* Decode the opcode */ 625 626 Arg = Op->Common.Value.Arg; 627 628 switch (WalkState->OpInfo->Type) 629 { 630 631 case AML_TYPE_CREATE_FIELD: 632 /* 633 * Create the field object, but the field buffer and index must 634 * be evaluated later during the execution phase 635 */ 636 Status = AcpiDsCreateBufferField (Op, WalkState); 637 if ACPI_FAILURE (Status) 638 { 639 ACPI_EXCEPTION ((AE_INFO, Status, "CreateBufferField failure")); 640 goto Cleanup; 641 } 642 break; 643 644 case AML_TYPE_NAMED_FIELD: 645 /* 646 * If we are executing a method, initialize the field 647 */ 648 if (WalkState->MethodNode) 649 { 650 Status = AcpiDsInitFieldObjects (Op, WalkState); 651 } 652 653 switch (Op->Common.AmlOpcode) 654 { 655 case AML_INDEX_FIELD_OP: 656 657 Status = AcpiDsCreateIndexField ( 658 Op, (ACPI_HANDLE) Arg->Common.Node, WalkState); 659 break; 660 661 case AML_BANK_FIELD_OP: 662 663 Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState); 664 break; 665 666 case AML_FIELD_OP: 667 668 Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState); 669 break; 670 671 default: 672 673 /* All NAMED_FIELD opcodes must be handled above */ 674 break; 675 } 676 break; 677 678 case AML_TYPE_NAMED_SIMPLE: 679 680 Status = AcpiDsCreateOperands (WalkState, Arg); 681 if (ACPI_FAILURE (Status)) 682 { 683 goto Cleanup; 684 } 685 686 switch (Op->Common.AmlOpcode) 687 { 688 case AML_PROCESSOR_OP: 689 690 Status = AcpiExCreateProcessor (WalkState); 691 break; 692 693 case AML_POWER_RESOURCE_OP: 694 695 Status = AcpiExCreatePowerResource (WalkState); 696 break; 697 698 case AML_MUTEX_OP: 699 700 Status = AcpiExCreateMutex (WalkState); 701 break; 702 703 case AML_EVENT_OP: 704 705 Status = AcpiExCreateEvent (WalkState); 706 break; 707 708 case AML_ALIAS_OP: 709 710 Status = AcpiExCreateAlias (WalkState); 711 break; 712 713 default: 714 715 /* Unknown opcode */ 716 717 Status = AE_OK; 718 goto Cleanup; 719 } 720 721 /* Delete operands */ 722 723 for (i = 1; i < WalkState->NumOperands; i++) 724 { 725 AcpiUtRemoveReference (WalkState->Operands[i]); 726 WalkState->Operands[i] = NULL; 727 } 728 729 break; 730 731 case AML_TYPE_NAMED_COMPLEX: 732 733 switch (Op->Common.AmlOpcode) 734 { 735 case AML_REGION_OP: 736 case AML_DATA_REGION_OP: 737 738 if (Op->Common.AmlOpcode == AML_REGION_OP) 739 { 740 RegionSpace = (ACPI_ADR_SPACE_TYPE) 741 ((Op->Common.Value.Arg)->Common.Value.Integer); 742 } 743 else 744 { 745 RegionSpace = ACPI_ADR_SPACE_DATA_TABLE; 746 } 747 748 /* 749 * The OpRegion is not fully parsed at this time. The only valid 750 * argument is the SpaceId. (We must save the address of the 751 * AML of the address and length operands) 752 * 753 * If we have a valid region, initialize it. The namespace is 754 * unlocked at this point. 755 * 756 * Need to unlock interpreter if it is locked (if we are running 757 * a control method), in order to allow _REG methods to be run 758 * during AcpiEvInitializeRegion. 759 */ 760 if (WalkState->MethodNode) 761 { 762 /* 763 * Executing a method: initialize the region and unlock 764 * the interpreter 765 */ 766 Status = AcpiExCreateRegion (Op->Named.Data, 767 Op->Named.Length, RegionSpace, WalkState); 768 if (ACPI_FAILURE (Status)) 769 { 770 return_ACPI_STATUS (Status); 771 } 772 } 773 774 Status = AcpiEvInitializeRegion ( 775 AcpiNsGetAttachedObject (Node)); 776 break; 777 778 case AML_NAME_OP: 779 780 Status = AcpiDsCreateNode (WalkState, Node, Op); 781 if (ACPI_FAILURE (Status)) 782 { 783 goto Cleanup; 784 } 785 786 #ifdef ACPI_EXEC_APP 787 /* 788 * AcpiExec support for namespace initialization file (initialize 789 * Name opcodes in this code.) 790 */ 791 Namepath = AcpiNsGetExternalPathname (Node); 792 Status = AeLookupInitFileEntry (Namepath, &ObjDesc); 793 if (ACPI_SUCCESS (Status)) 794 { 795 /* Detach any existing object, attach new object */ 796 797 if (Node->Object) 798 { 799 AcpiNsDetachObject (Node); 800 } 801 AcpiNsAttachObject (Node, ObjDesc, ObjDesc->Common.Type); 802 } 803 ACPI_FREE (Namepath); 804 Status = AE_OK; 805 #endif 806 break; 807 808 case AML_METHOD_OP: 809 /* 810 * MethodOp PkgLength NameString MethodFlags TermList 811 * 812 * Note: We must create the method node/object pair as soon as we 813 * see the method declaration. This allows later pass1 parsing 814 * of invocations of the method (need to know the number of 815 * arguments.) 816 */ 817 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 818 "LOADING-Method: State=%p Op=%p NamedObj=%p\n", 819 WalkState, Op, Op->Named.Node)); 820 821 if (!AcpiNsGetAttachedObject (Op->Named.Node)) 822 { 823 WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node); 824 WalkState->NumOperands = 1; 825 826 Status = AcpiDsCreateOperands ( 827 WalkState, Op->Common.Value.Arg); 828 if (ACPI_SUCCESS (Status)) 829 { 830 Status = AcpiExCreateMethod ( 831 Op->Named.Data, Op->Named.Length, WalkState); 832 } 833 834 WalkState->Operands[0] = NULL; 835 WalkState->NumOperands = 0; 836 837 if (ACPI_FAILURE (Status)) 838 { 839 return_ACPI_STATUS (Status); 840 } 841 } 842 break; 843 844 845 default: 846 847 /* All NAMED_COMPLEX opcodes must be handled above */ 848 break; 849 } 850 break; 851 852 case AML_CLASS_INTERNAL: 853 854 /* case AML_INT_NAMEPATH_OP: */ 855 break; 856 857 case AML_CLASS_METHOD_CALL: 858 859 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 860 "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", 861 WalkState, Op, Node)); 862 863 /* 864 * Lookup the method name and save the Node 865 */ 866 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String, 867 ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2, 868 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, 869 WalkState, &(NewNode)); 870 if (ACPI_SUCCESS (Status)) 871 { 872 /* 873 * Make sure that what we found is indeed a method 874 * We didn't search for a method on purpose, to see if the name 875 * would resolve 876 */ 877 if (NewNode->Type != ACPI_TYPE_METHOD) 878 { 879 Status = AE_AML_OPERAND_TYPE; 880 } 881 882 /* We could put the returned object (Node) on the object stack for 883 * later, but for now, we will put it in the "op" object that the 884 * parser uses, so we can get it again at the end of this scope 885 */ 886 Op->Common.Node = NewNode; 887 } 888 else 889 { 890 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 891 Arg->Common.Value.String, Status); 892 } 893 break; 894 895 896 default: 897 898 break; 899 } 900 901 Cleanup: 902 903 /* Remove the Node pushed at the very beginning */ 904 905 WalkState->Operands[0] = NULL; 906 WalkState->NumOperands = 0; 907 return_ACPI_STATUS (Status); 908 } 909
Indexes created Sat Sep 20 22:09:52 GMT 2025