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 - 2018, 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" 160 161 #define _COMPONENT ACPI_DISPATCHER 162 ACPI_MODULE_NAME ("dswload2") 163 164 165 /******************************************************************************* 166 * 167 * FUNCTION: AcpiDsLoad2BeginOp 168 * 169 * PARAMETERS: WalkState - Current state of the parse tree walk 170 * OutOp - Wher to return op if a new one is created 171 * 172 * RETURN: Status 173 * 174 * DESCRIPTION: Descending callback used during the loading of ACPI tables. 175 * 176 ******************************************************************************/ 177 178 ACPI_STATUS 179 AcpiDsLoad2BeginOp ( 180 ACPI_WALK_STATE *WalkState, 181 ACPI_PARSE_OBJECT **OutOp) 182 { 183 ACPI_PARSE_OBJECT *Op; 184 ACPI_NAMESPACE_NODE *Node; 185 ACPI_STATUS Status; 186 ACPI_OBJECT_TYPE ObjectType; 187 char *BufferPtr; 188 UINT32 Flags; 189 190 191 ACPI_FUNCTION_TRACE (DsLoad2BeginOp); 192 193 194 Op = WalkState->Op; 195 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); 196 197 if (Op) 198 { 199 if ((WalkState->ControlState) && 200 (WalkState->ControlState->Common.State == 201 ACPI_CONTROL_CONDITIONAL_EXECUTING)) 202 { 203 /* We are executing a while loop outside of a method */ 204 205 Status = AcpiDsExecBeginOp (WalkState, OutOp); 206 return_ACPI_STATUS (Status); 207 } 208 209 /* We only care about Namespace opcodes here */ 210 211 if ((!(WalkState->OpInfo->Flags & AML_NSOPCODE) && 212 (WalkState->Opcode != AML_INT_NAMEPATH_OP)) || 213 (!(WalkState->OpInfo->Flags & AML_NAMED))) 214 { 215 return_ACPI_STATUS (AE_OK); 216 } 217 218 /* Get the name we are going to enter or lookup in the namespace */ 219 220 if (WalkState->Opcode == AML_INT_NAMEPATH_OP) 221 { 222 /* For Namepath op, get the path string */ 223 224 BufferPtr = Op->Common.Value.String; 225 if (!BufferPtr) 226 { 227 /* No name, just exit */ 228 229 return_ACPI_STATUS (AE_OK); 230 } 231 } 232 else 233 { 234 /* Get name from the op */ 235 236 BufferPtr = ACPI_CAST_PTR (char, &Op->Named.Name); 237 } 238 } 239 else 240 { 241 /* Get the namestring from the raw AML */ 242 243 BufferPtr = AcpiPsGetNextNamestring (&WalkState->ParserState); 244 } 245 246 /* Map the opcode into an internal object type */ 247 248 ObjectType = WalkState->OpInfo->ObjectType; 249 250 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 251 "State=%p Op=%p Type=%X\n", WalkState, Op, ObjectType)); 252 253 switch (WalkState->Opcode) 254 { 255 case AML_FIELD_OP: 256 case AML_BANK_FIELD_OP: 257 case AML_INDEX_FIELD_OP: 258 259 Node = NULL; 260 Status = AE_OK; 261 break; 262 263 case AML_INT_NAMEPATH_OP: 264 /* 265 * The NamePath is an object reference to an existing object. 266 * Don't enter the name into the namespace, but look it up 267 * for use later. 268 */ 269 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, 270 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, 271 WalkState, &(Node)); 272 break; 273 274 case AML_SCOPE_OP: 275 276 /* Special case for Scope(\) -> refers to the Root node */ 277 278 if (Op && (Op->Named.Node == AcpiGbl_RootNode)) 279 { 280 Node = Op->Named.Node; 281 282 Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState); 283 if (ACPI_FAILURE (Status)) 284 { 285 return_ACPI_STATUS (Status); 286 } 287 } 288 else 289 { 290 /* 291 * The Path is an object reference to an existing object. 292 * Don't enter the name into the namespace, but look it up 293 * for use later. 294 */ 295 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, 296 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, 297 WalkState, &(Node)); 298 if (ACPI_FAILURE (Status)) 299 { 300 #ifdef ACPI_ASL_COMPILER 301 if (Status == AE_NOT_FOUND) 302 { 303 Status = AE_OK; 304 } 305 else 306 { 307 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 308 BufferPtr, Status); 309 } 310 #else 311 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 312 BufferPtr, Status); 313 #endif 314 return_ACPI_STATUS (Status); 315 } 316 } 317 318 /* 319 * We must check to make sure that the target is 320 * one of the opcodes that actually opens a scope 321 */ 322 switch (Node->Type) 323 { 324 case ACPI_TYPE_ANY: 325 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ 326 case ACPI_TYPE_DEVICE: 327 case ACPI_TYPE_POWER: 328 case ACPI_TYPE_PROCESSOR: 329 case ACPI_TYPE_THERMAL: 330 331 /* These are acceptable types */ 332 break; 333 334 case ACPI_TYPE_INTEGER: 335 case ACPI_TYPE_STRING: 336 case ACPI_TYPE_BUFFER: 337 338 /* 339 * These types we will allow, but we will change the type. 340 * This enables some existing code of the form: 341 * 342 * Name (DEB, 0) 343 * Scope (DEB) { ... } 344 */ 345 ACPI_WARNING ((AE_INFO, 346 "Type override - [%4.4s] had invalid type (%s) " 347 "for Scope operator, changed to type ANY", 348 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type))); 349 350 Node->Type = ACPI_TYPE_ANY; 351 WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY; 352 break; 353 354 case ACPI_TYPE_METHOD: 355 356 /* 357 * Allow scope change to root during execution of module-level 358 * code. Root is typed METHOD during this time. 359 */ 360 if ((Node == AcpiGbl_RootNode) && 361 (WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) 362 { 363 break; 364 } 365 366 /*lint -fallthrough */ 367 368 default: 369 370 /* All other types are an error */ 371 372 ACPI_ERROR ((AE_INFO, 373 "Invalid type (%s) for target of " 374 "Scope operator [%4.4s] (Cannot override)", 375 AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node))); 376 377 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 378 } 379 break; 380 381 default: 382 383 /* All other opcodes */ 384 385 if (Op && Op->Common.Node) 386 { 387 /* This op/node was previously entered into the namespace */ 388 389 Node = Op->Common.Node; 390 391 if (AcpiNsOpensScope (ObjectType)) 392 { 393 Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState); 394 if (ACPI_FAILURE (Status)) 395 { 396 return_ACPI_STATUS (Status); 397 } 398 } 399 400 return_ACPI_STATUS (AE_OK); 401 } 402 403 /* 404 * Enter the named type into the internal namespace. We enter the name 405 * as we go downward in the parse tree. Any necessary subobjects that 406 * involve arguments to the opcode must be created as we go back up the 407 * parse tree later. 408 * 409 * Note: Name may already exist if we are executing a deferred opcode. 410 */ 411 if (WalkState->DeferredNode) 412 { 413 /* This name is already in the namespace, get the node */ 414 415 Node = WalkState->DeferredNode; 416 Status = AE_OK; 417 break; 418 } 419 420 Flags = ACPI_NS_NO_UPSEARCH; 421 if (WalkState->PassNumber == ACPI_IMODE_EXECUTE) 422 { 423 /* Execution mode, node cannot already exist, node is temporary */ 424 425 Flags |= ACPI_NS_ERROR_IF_FOUND; 426 427 if (!(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) 428 { 429 Flags |= ACPI_NS_TEMPORARY; 430 } 431 } 432 433 #ifdef ACPI_ASL_COMPILER 434 435 /* 436 * Do not open a scope for AML_EXTERNAL_OP 437 * AcpiNsLookup can open a new scope based on the object type 438 * of this op. AML_EXTERNAL_OP is a declaration rather than a 439 * definition. In the case that this external is a method object, 440 * AcpiNsLookup will open a new scope. However, an AML_EXTERNAL_OP 441 * associated with the ACPI_TYPE_METHOD is a declaration, rather than 442 * a definition. Flags is set to avoid opening a scope for any 443 * AML_EXTERNAL_OP. 444 */ 445 if (WalkState->Opcode == AML_EXTERNAL_OP) 446 { 447 Flags |= ACPI_NS_DONT_OPEN_SCOPE; 448 } 449 #endif 450 451 /* Add new entry or lookup existing entry */ 452 453 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType, 454 ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node); 455 456 if (ACPI_SUCCESS (Status) && (Flags & ACPI_NS_TEMPORARY)) 457 { 458 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 459 "***New Node [%4.4s] %p is temporary\n", 460 AcpiUtGetNodeName (Node), Node)); 461 } 462 break; 463 } 464 465 if (ACPI_FAILURE (Status)) 466 { 467 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 468 BufferPtr, Status); 469 return_ACPI_STATUS (Status); 470 } 471 472 if (!Op) 473 { 474 /* Create a new op */ 475 476 Op = AcpiPsAllocOp (WalkState->Opcode, WalkState->Aml); 477 if (!Op) 478 { 479 return_ACPI_STATUS (AE_NO_MEMORY); 480 } 481 482 /* Initialize the new op */ 483 484 if (Node) 485 { 486 Op->Named.Name = Node->Name.Integer; 487 } 488 *OutOp = Op; 489 } 490 491 /* 492 * Put the Node in the "op" object that the parser uses, so we 493 * can get it again quickly when this scope is closed 494 */ 495 Op->Common.Node = Node; 496 return_ACPI_STATUS (Status); 497 } 498 499 500 /******************************************************************************* 501 * 502 * FUNCTION: AcpiDsLoad2EndOp 503 * 504 * PARAMETERS: WalkState - Current state of the parse tree walk 505 * 506 * RETURN: Status 507 * 508 * DESCRIPTION: Ascending callback used during the loading of the namespace, 509 * both control methods and everything else. 510 * 511 ******************************************************************************/ 512 513 ACPI_STATUS 514 AcpiDsLoad2EndOp ( 515 ACPI_WALK_STATE *WalkState) 516 { 517 ACPI_PARSE_OBJECT *Op; 518 ACPI_STATUS Status = AE_OK; 519 ACPI_OBJECT_TYPE ObjectType; 520 ACPI_NAMESPACE_NODE *Node; 521 ACPI_PARSE_OBJECT *Arg; 522 ACPI_NAMESPACE_NODE *NewNode; 523 #ifndef ACPI_NO_METHOD_EXECUTION 524 UINT32 i; 525 UINT8 RegionSpace; 526 #endif 527 528 529 ACPI_FUNCTION_TRACE (DsLoad2EndOp); 530 531 Op = WalkState->Op; 532 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", 533 WalkState->OpInfo->Name, Op, WalkState)); 534 535 /* Check if opcode had an associated namespace object */ 536 537 if (!(WalkState->OpInfo->Flags & AML_NSOBJECT)) 538 { 539 return_ACPI_STATUS (AE_OK); 540 } 541 542 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 543 { 544 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 545 "Ending scope Op=%p State=%p\n", Op, WalkState)); 546 } 547 548 ObjectType = WalkState->OpInfo->ObjectType; 549 550 /* 551 * Get the Node/name from the earlier lookup 552 * (It was saved in the *op structure) 553 */ 554 Node = Op->Common.Node; 555 556 /* 557 * Put the Node on the object stack (Contains the ACPI Name of 558 * this object) 559 */ 560 WalkState->Operands[0] = (void *) Node; 561 WalkState->NumOperands = 1; 562 563 /* Pop the scope stack */ 564 565 if (AcpiNsOpensScope (ObjectType) && 566 (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP)) 567 { 568 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n", 569 AcpiUtGetTypeName (ObjectType), Op)); 570 571 Status = AcpiDsScopeStackPop (WalkState); 572 if (ACPI_FAILURE (Status)) 573 { 574 goto Cleanup; 575 } 576 } 577 578 /* 579 * Named operations are as follows: 580 * 581 * AML_ALIAS 582 * AML_BANKFIELD 583 * AML_CREATEBITFIELD 584 * AML_CREATEBYTEFIELD 585 * AML_CREATEDWORDFIELD 586 * AML_CREATEFIELD 587 * AML_CREATEQWORDFIELD 588 * AML_CREATEWORDFIELD 589 * AML_DATA_REGION 590 * AML_DEVICE 591 * AML_EVENT 592 * AML_FIELD 593 * AML_INDEXFIELD 594 * AML_METHOD 595 * AML_METHODCALL 596 * AML_MUTEX 597 * AML_NAME 598 * AML_NAMEDFIELD 599 * AML_OPREGION 600 * AML_POWERRES 601 * AML_PROCESSOR 602 * AML_SCOPE 603 * AML_THERMALZONE 604 */ 605 606 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 607 "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", 608 AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node)); 609 610 /* Decode the opcode */ 611 612 Arg = Op->Common.Value.Arg; 613 614 switch (WalkState->OpInfo->Type) 615 { 616 #ifndef ACPI_NO_METHOD_EXECUTION 617 618 case AML_TYPE_CREATE_FIELD: 619 /* 620 * Create the field object, but the field buffer and index must 621 * be evaluated later during the execution phase 622 */ 623 Status = AcpiDsCreateBufferField (Op, WalkState); 624 break; 625 626 case AML_TYPE_NAMED_FIELD: 627 /* 628 * If we are executing a method, initialize the field 629 */ 630 if (WalkState->MethodNode) 631 { 632 Status = AcpiDsInitFieldObjects (Op, WalkState); 633 } 634 635 switch (Op->Common.AmlOpcode) 636 { 637 case AML_INDEX_FIELD_OP: 638 639 Status = AcpiDsCreateIndexField ( 640 Op, (ACPI_HANDLE) Arg->Common.Node, WalkState); 641 break; 642 643 case AML_BANK_FIELD_OP: 644 645 Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState); 646 break; 647 648 case AML_FIELD_OP: 649 650 Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState); 651 break; 652 653 default: 654 655 /* All NAMED_FIELD opcodes must be handled above */ 656 break; 657 } 658 break; 659 660 case AML_TYPE_NAMED_SIMPLE: 661 662 Status = AcpiDsCreateOperands (WalkState, Arg); 663 if (ACPI_FAILURE (Status)) 664 { 665 goto Cleanup; 666 } 667 668 switch (Op->Common.AmlOpcode) 669 { 670 case AML_PROCESSOR_OP: 671 672 Status = AcpiExCreateProcessor (WalkState); 673 break; 674 675 case AML_POWER_RESOURCE_OP: 676 677 Status = AcpiExCreatePowerResource (WalkState); 678 break; 679 680 case AML_MUTEX_OP: 681 682 Status = AcpiExCreateMutex (WalkState); 683 break; 684 685 case AML_EVENT_OP: 686 687 Status = AcpiExCreateEvent (WalkState); 688 break; 689 690 case AML_ALIAS_OP: 691 692 Status = AcpiExCreateAlias (WalkState); 693 break; 694 695 default: 696 697 /* Unknown opcode */ 698 699 Status = AE_OK; 700 goto Cleanup; 701 } 702 703 /* Delete operands */ 704 705 for (i = 1; i < WalkState->NumOperands; i++) 706 { 707 AcpiUtRemoveReference (WalkState->Operands[i]); 708 WalkState->Operands[i] = NULL; 709 } 710 711 break; 712 #endif /* ACPI_NO_METHOD_EXECUTION */ 713 714 case AML_TYPE_NAMED_COMPLEX: 715 716 switch (Op->Common.AmlOpcode) 717 { 718 #ifndef ACPI_NO_METHOD_EXECUTION 719 case AML_REGION_OP: 720 case AML_DATA_REGION_OP: 721 722 if (Op->Common.AmlOpcode == AML_REGION_OP) 723 { 724 RegionSpace = (ACPI_ADR_SPACE_TYPE) 725 ((Op->Common.Value.Arg)->Common.Value.Integer); 726 } 727 else 728 { 729 RegionSpace = ACPI_ADR_SPACE_DATA_TABLE; 730 } 731 732 /* 733 * The OpRegion is not fully parsed at this time. The only valid 734 * argument is the SpaceId. (We must save the address of the 735 * AML of the address and length operands) 736 * 737 * If we have a valid region, initialize it. The namespace is 738 * unlocked at this point. 739 * 740 * Need to unlock interpreter if it is locked (if we are running 741 * a control method), in order to allow _REG methods to be run 742 * during AcpiEvInitializeRegion. 743 */ 744 if (WalkState->MethodNode) 745 { 746 /* 747 * Executing a method: initialize the region and unlock 748 * the interpreter 749 */ 750 Status = AcpiExCreateRegion (Op->Named.Data, 751 Op->Named.Length, RegionSpace, WalkState); 752 if (ACPI_FAILURE (Status)) 753 { 754 return_ACPI_STATUS (Status); 755 } 756 } 757 758 Status = AcpiEvInitializeRegion ( 759 AcpiNsGetAttachedObject (Node)); 760 break; 761 762 case AML_NAME_OP: 763 764 Status = AcpiDsCreateNode (WalkState, Node, Op); 765 break; 766 767 case AML_METHOD_OP: 768 /* 769 * MethodOp PkgLength NameString MethodFlags TermList 770 * 771 * Note: We must create the method node/object pair as soon as we 772 * see the method declaration. This allows later pass1 parsing 773 * of invocations of the method (need to know the number of 774 * arguments.) 775 */ 776 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 777 "LOADING-Method: State=%p Op=%p NamedObj=%p\n", 778 WalkState, Op, Op->Named.Node)); 779 780 if (!AcpiNsGetAttachedObject (Op->Named.Node)) 781 { 782 WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node); 783 WalkState->NumOperands = 1; 784 785 Status = AcpiDsCreateOperands ( 786 WalkState, Op->Common.Value.Arg); 787 if (ACPI_SUCCESS (Status)) 788 { 789 Status = AcpiExCreateMethod ( 790 Op->Named.Data, Op->Named.Length, WalkState); 791 } 792 793 WalkState->Operands[0] = NULL; 794 WalkState->NumOperands = 0; 795 796 if (ACPI_FAILURE (Status)) 797 { 798 return_ACPI_STATUS (Status); 799 } 800 } 801 break; 802 803 #endif /* ACPI_NO_METHOD_EXECUTION */ 804 805 default: 806 807 /* All NAMED_COMPLEX opcodes must be handled above */ 808 break; 809 } 810 break; 811 812 case AML_CLASS_INTERNAL: 813 814 /* case AML_INT_NAMEPATH_OP: */ 815 break; 816 817 case AML_CLASS_METHOD_CALL: 818 819 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 820 "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", 821 WalkState, Op, Node)); 822 823 /* 824 * Lookup the method name and save the Node 825 */ 826 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String, 827 ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2, 828 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, 829 WalkState, &(NewNode)); 830 if (ACPI_SUCCESS (Status)) 831 { 832 /* 833 * Make sure that what we found is indeed a method 834 * We didn't search for a method on purpose, to see if the name 835 * would resolve 836 */ 837 if (NewNode->Type != ACPI_TYPE_METHOD) 838 { 839 Status = AE_AML_OPERAND_TYPE; 840 } 841 842 /* We could put the returned object (Node) on the object stack for 843 * later, but for now, we will put it in the "op" object that the 844 * parser uses, so we can get it again at the end of this scope 845 */ 846 Op->Common.Node = NewNode; 847 } 848 else 849 { 850 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 851 Arg->Common.Value.String, Status); 852 } 853 break; 854 855 856 default: 857 858 break; 859 } 860 861 Cleanup: 862 863 /* Remove the Node pushed at the very beginning */ 864 865 WalkState->Operands[0] = NULL; 866 WalkState->NumOperands = 0; 867 return_ACPI_STATUS (Status); 868 } 869