1 /****************************************************************************** 2 * 3 * Module Name: dswload - Dispatcher first pass namespace load callbacks 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2019, 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 <contrib/dev/acpica/include/acpi.h> 153 #include <contrib/dev/acpica/include/accommon.h> 154 #include <contrib/dev/acpica/include/acparser.h> 155 #include <contrib/dev/acpica/include/amlcode.h> 156 #include <contrib/dev/acpica/include/acdispat.h> 157 #include <contrib/dev/acpica/include/acinterp.h> 158 #include <contrib/dev/acpica/include/acnamesp.h> 159 160 #ifdef ACPI_ASL_COMPILER 161 #include <contrib/dev/acpica/include/acdisasm.h> 162 #endif 163 164 #define _COMPONENT ACPI_DISPATCHER 165 ACPI_MODULE_NAME ("dswload") 166 167 168 /******************************************************************************* 169 * 170 * FUNCTION: AcpiDsInitCallbacks 171 * 172 * PARAMETERS: WalkState - Current state of the parse tree walk 173 * PassNumber - 1, 2, or 3 174 * 175 * RETURN: Status 176 * 177 * DESCRIPTION: Init walk state callbacks 178 * 179 ******************************************************************************/ 180 181 ACPI_STATUS 182 AcpiDsInitCallbacks ( 183 ACPI_WALK_STATE *WalkState, 184 UINT32 PassNumber) 185 { 186 187 switch (PassNumber) 188 { 189 case 0: 190 191 /* Parse only - caller will setup callbacks */ 192 193 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 194 ACPI_PARSE_DELETE_TREE | 195 ACPI_PARSE_DISASSEMBLE; 196 WalkState->DescendingCallback = NULL; 197 WalkState->AscendingCallback = NULL; 198 break; 199 200 case 1: 201 202 /* Load pass 1 */ 203 204 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 205 ACPI_PARSE_DELETE_TREE; 206 WalkState->DescendingCallback = AcpiDsLoad1BeginOp; 207 WalkState->AscendingCallback = AcpiDsLoad1EndOp; 208 break; 209 210 case 2: 211 212 /* Load pass 2 */ 213 214 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 215 ACPI_PARSE_DELETE_TREE; 216 WalkState->DescendingCallback = AcpiDsLoad2BeginOp; 217 WalkState->AscendingCallback = AcpiDsLoad2EndOp; 218 break; 219 220 case 3: 221 222 /* Execution pass */ 223 224 WalkState->ParseFlags |= ACPI_PARSE_EXECUTE | 225 ACPI_PARSE_DELETE_TREE; 226 WalkState->DescendingCallback = AcpiDsExecBeginOp; 227 WalkState->AscendingCallback = AcpiDsExecEndOp; 228 break; 229 230 default: 231 232 return (AE_BAD_PARAMETER); 233 } 234 235 return (AE_OK); 236 } 237 238 239 /******************************************************************************* 240 * 241 * FUNCTION: AcpiDsLoad1BeginOp 242 * 243 * PARAMETERS: WalkState - Current state of the parse tree walk 244 * OutOp - Where to return op if a new one is created 245 * 246 * RETURN: Status 247 * 248 * DESCRIPTION: Descending callback used during the loading of ACPI tables. 249 * 250 ******************************************************************************/ 251 252 ACPI_STATUS 253 AcpiDsLoad1BeginOp ( 254 ACPI_WALK_STATE *WalkState, 255 ACPI_PARSE_OBJECT **OutOp) 256 { 257 ACPI_PARSE_OBJECT *Op; 258 ACPI_NAMESPACE_NODE *Node; 259 ACPI_STATUS Status; 260 ACPI_OBJECT_TYPE ObjectType; 261 char *Path; 262 UINT32 Flags; 263 264 265 ACPI_FUNCTION_TRACE_PTR (DsLoad1BeginOp, WalkState->Op); 266 267 268 Op = WalkState->Op; 269 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); 270 271 /* We are only interested in opcodes that have an associated name */ 272 273 if (Op) 274 { 275 if (!(WalkState->OpInfo->Flags & AML_NAMED)) 276 { 277 *OutOp = Op; 278 return_ACPI_STATUS (AE_OK); 279 } 280 281 /* Check if this object has already been installed in the namespace */ 282 283 if (Op->Common.Node) 284 { 285 *OutOp = Op; 286 return_ACPI_STATUS (AE_OK); 287 } 288 } 289 290 Path = AcpiPsGetNextNamestring (&WalkState->ParserState); 291 292 /* Map the raw opcode into an internal object type */ 293 294 ObjectType = WalkState->OpInfo->ObjectType; 295 296 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 297 "State=%p Op=%p [%s]\n", WalkState, Op, 298 AcpiUtGetTypeName (ObjectType))); 299 300 switch (WalkState->Opcode) 301 { 302 case AML_SCOPE_OP: 303 /* 304 * The target name of the Scope() operator must exist at this point so 305 * that we can actually open the scope to enter new names underneath it. 306 * Allow search-to-root for single namesegs. 307 */ 308 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 309 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &(Node)); 310 #ifdef ACPI_ASL_COMPILER 311 if (Status == AE_NOT_FOUND) 312 { 313 /* 314 * Table disassembly: 315 * Target of Scope() not found. Generate an External for it, and 316 * insert the name into the namespace. 317 */ 318 AcpiDmAddOpToExternalList (Op, Path, ACPI_TYPE_DEVICE, 0, 0); 319 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 320 ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, 321 WalkState, &Node); 322 } 323 #endif 324 if (ACPI_FAILURE (Status)) 325 { 326 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, Path, Status); 327 return_ACPI_STATUS (Status); 328 } 329 330 /* 331 * Check to make sure that the target is 332 * one of the opcodes that actually opens a scope 333 */ 334 switch (Node->Type) 335 { 336 case ACPI_TYPE_ANY: 337 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ 338 case ACPI_TYPE_DEVICE: 339 case ACPI_TYPE_POWER: 340 case ACPI_TYPE_PROCESSOR: 341 case ACPI_TYPE_THERMAL: 342 343 /* These are acceptable types */ 344 break; 345 346 case ACPI_TYPE_INTEGER: 347 case ACPI_TYPE_STRING: 348 case ACPI_TYPE_BUFFER: 349 /* 350 * These types we will allow, but we will change the type. 351 * This enables some existing code of the form: 352 * 353 * Name (DEB, 0) 354 * Scope (DEB) { ... } 355 * 356 * Note: silently change the type here. On the second pass, 357 * we will report a warning 358 */ 359 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 360 "Type override - [%4.4s] had invalid type (%s) " 361 "for Scope operator, changed to type ANY\n", 362 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type))); 363 364 Node->Type = ACPI_TYPE_ANY; 365 WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY; 366 break; 367 368 case ACPI_TYPE_METHOD: 369 /* 370 * Allow scope change to root during execution of module-level 371 * code. Root is typed METHOD during this time. 372 */ 373 if ((Node == AcpiGbl_RootNode) && 374 (WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) 375 { 376 break; 377 } 378 379 /*lint -fallthrough */ 380 381 default: 382 383 /* All other types are an error */ 384 385 ACPI_ERROR ((AE_INFO, 386 "Invalid type (%s) for target of " 387 "Scope operator [%4.4s] (Cannot override)", 388 AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node))); 389 390 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 391 } 392 break; 393 394 default: 395 /* 396 * For all other named opcodes, we will enter the name into 397 * the namespace. 398 * 399 * Setup the search flags. 400 * Since we are entering a name into the namespace, we do not want to 401 * enable the search-to-root upsearch. 402 * 403 * There are only two conditions where it is acceptable that the name 404 * already exists: 405 * 1) the Scope() operator can reopen a scoping object that was 406 * previously defined (Scope, Method, Device, etc.) 407 * 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer, 408 * BufferField, or Package), the name of the object is already 409 * in the namespace. 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 /* 421 * If we are executing a method, do not create any namespace objects 422 * during the load phase, only during execution. 423 */ 424 if (WalkState->MethodNode) 425 { 426 Node = NULL; 427 Status = AE_OK; 428 break; 429 } 430 431 Flags = ACPI_NS_NO_UPSEARCH; 432 if ((WalkState->Opcode != AML_SCOPE_OP) && 433 (!(WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP))) 434 { 435 if (WalkState->NamespaceOverride) 436 { 437 Flags |= ACPI_NS_OVERRIDE_IF_FOUND; 438 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Override allowed\n", 439 AcpiUtGetTypeName (ObjectType))); 440 } 441 else 442 { 443 Flags |= ACPI_NS_ERROR_IF_FOUND; 444 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n", 445 AcpiUtGetTypeName (ObjectType))); 446 } 447 } 448 else 449 { 450 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 451 "[%s] Both Find or Create allowed\n", 452 AcpiUtGetTypeName (ObjectType))); 453 } 454 455 /* 456 * Enter the named type into the internal namespace. We enter the name 457 * as we go downward in the parse tree. Any necessary subobjects that 458 * involve arguments to the opcode must be created as we go back up the 459 * parse tree later. 460 */ 461 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 462 ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node); 463 if (ACPI_FAILURE (Status)) 464 { 465 if (Status == AE_ALREADY_EXISTS) 466 { 467 /* The name already exists in this scope */ 468 469 if (Node->Flags & ANOBJ_IS_EXTERNAL) 470 { 471 /* 472 * Allow one create on an object or segment that was 473 * previously declared External 474 */ 475 Node->Flags &= ~ANOBJ_IS_EXTERNAL; 476 Node->Type = (UINT8) ObjectType; 477 478 /* Just retyped a node, probably will need to open a scope */ 479 480 if (AcpiNsOpensScope (ObjectType)) 481 { 482 Status = AcpiDsScopeStackPush ( 483 Node, ObjectType, WalkState); 484 if (ACPI_FAILURE (Status)) 485 { 486 return_ACPI_STATUS (Status); 487 } 488 } 489 490 Status = AE_OK; 491 } 492 } 493 494 if (ACPI_FAILURE (Status)) 495 { 496 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, Path, Status); 497 return_ACPI_STATUS (Status); 498 } 499 } 500 break; 501 } 502 503 /* Common exit */ 504 505 if (!Op) 506 { 507 /* Create a new op */ 508 509 Op = AcpiPsAllocOp (WalkState->Opcode, WalkState->Aml); 510 if (!Op) 511 { 512 return_ACPI_STATUS (AE_NO_MEMORY); 513 } 514 } 515 516 /* Initialize the op */ 517 518 #ifdef ACPI_CONSTANT_EVAL_ONLY 519 Op->Named.Path = Path; 520 #endif 521 522 if (Node) 523 { 524 /* 525 * Put the Node in the "op" object that the parser uses, so we 526 * can get it again quickly when this scope is closed 527 */ 528 Op->Common.Node = Node; 529 Op->Named.Name = Node->Name.Integer; 530 } 531 532 AcpiPsAppendArg (AcpiPsGetParentScope (&WalkState->ParserState), Op); 533 *OutOp = Op; 534 return_ACPI_STATUS (Status); 535 } 536 537 538 /******************************************************************************* 539 * 540 * FUNCTION: AcpiDsLoad1EndOp 541 * 542 * PARAMETERS: WalkState - Current state of the parse tree walk 543 * 544 * RETURN: Status 545 * 546 * DESCRIPTION: Ascending callback used during the loading of the namespace, 547 * both control methods and everything else. 548 * 549 ******************************************************************************/ 550 551 ACPI_STATUS 552 AcpiDsLoad1EndOp ( 553 ACPI_WALK_STATE *WalkState) 554 { 555 ACPI_PARSE_OBJECT *Op; 556 ACPI_OBJECT_TYPE ObjectType; 557 ACPI_STATUS Status = AE_OK; 558 559 #ifdef ACPI_ASL_COMPILER 560 UINT8 ParamCount; 561 #endif 562 563 564 ACPI_FUNCTION_TRACE (DsLoad1EndOp); 565 566 567 Op = WalkState->Op; 568 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); 569 570 /* We are only interested in opcodes that have an associated name */ 571 572 if (!(WalkState->OpInfo->Flags & (AML_NAMED | AML_FIELD))) 573 { 574 return_ACPI_STATUS (AE_OK); 575 } 576 577 /* Get the object type to determine if we should pop the scope */ 578 579 ObjectType = WalkState->OpInfo->ObjectType; 580 581 if (WalkState->OpInfo->Flags & AML_FIELD) 582 { 583 /* 584 * If we are executing a method, do not create any namespace objects 585 * during the load phase, only during execution. 586 */ 587 if (!WalkState->MethodNode) 588 { 589 if (WalkState->Opcode == AML_FIELD_OP || 590 WalkState->Opcode == AML_BANK_FIELD_OP || 591 WalkState->Opcode == AML_INDEX_FIELD_OP) 592 { 593 Status = AcpiDsInitFieldObjects (Op, WalkState); 594 } 595 } 596 return_ACPI_STATUS (Status); 597 } 598 599 /* 600 * If we are executing a method, do not create any namespace objects 601 * during the load phase, only during execution. 602 */ 603 if (!WalkState->MethodNode) 604 { 605 if (Op->Common.AmlOpcode == AML_REGION_OP) 606 { 607 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, 608 (ACPI_ADR_SPACE_TYPE) 609 ((Op->Common.Value.Arg)->Common.Value.Integer), 610 WalkState); 611 if (ACPI_FAILURE (Status)) 612 { 613 return_ACPI_STATUS (Status); 614 } 615 } 616 else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) 617 { 618 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, 619 ACPI_ADR_SPACE_DATA_TABLE, WalkState); 620 if (ACPI_FAILURE (Status)) 621 { 622 return_ACPI_STATUS (Status); 623 } 624 } 625 } 626 627 if (Op->Common.AmlOpcode == AML_NAME_OP) 628 { 629 /* For Name opcode, get the object type from the argument */ 630 631 if (Op->Common.Value.Arg) 632 { 633 ObjectType = (AcpiPsGetOpcodeInfo ( 634 (Op->Common.Value.Arg)->Common.AmlOpcode))->ObjectType; 635 636 /* Set node type if we have a namespace node */ 637 638 if (Op->Common.Node) 639 { 640 Op->Common.Node->Type = (UINT8) ObjectType; 641 } 642 } 643 } 644 645 #ifdef ACPI_ASL_COMPILER 646 /* 647 * For external opcode, get the object type from the argument and 648 * get the parameter count from the argument's next. 649 */ 650 if (AcpiGbl_DisasmFlag && 651 Op->Common.Node && 652 Op->Common.AmlOpcode == AML_EXTERNAL_OP) 653 { 654 /* 655 * Note, if this external is not a method 656 * Op->Common.Value.Arg->Common.Next->Common.Value.Integer == 0 657 * Therefore, ParamCount will be 0. 658 */ 659 ParamCount = (UINT8) Op->Common.Value.Arg->Common.Next->Common.Value.Integer; 660 ObjectType = (UINT8) Op->Common.Value.Arg->Common.Value.Integer; 661 Op->Common.Node->Flags |= ANOBJ_IS_EXTERNAL; 662 Op->Common.Node->Type = (UINT8) ObjectType; 663 664 AcpiDmCreateSubobjectForExternal ((UINT8)ObjectType, 665 &Op->Common.Node, ParamCount); 666 667 /* 668 * Add the external to the external list because we may be 669 * emitting code based off of the items within the external list. 670 */ 671 AcpiDmAddOpToExternalList (Op, Op->Named.Path, (UINT8)ObjectType, ParamCount, 672 ACPI_EXT_ORIGIN_FROM_OPCODE | ACPI_EXT_RESOLVED_REFERENCE); 673 } 674 #endif 675 676 /* 677 * If we are executing a method, do not create any namespace objects 678 * during the load phase, only during execution. 679 */ 680 if (!WalkState->MethodNode) 681 { 682 if (Op->Common.AmlOpcode == AML_METHOD_OP) 683 { 684 /* 685 * MethodOp PkgLength NameString MethodFlags TermList 686 * 687 * Note: We must create the method node/object pair as soon as we 688 * see the method declaration. This allows later pass1 parsing 689 * of invocations of the method (need to know the number of 690 * arguments.) 691 */ 692 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 693 "LOADING-Method: State=%p Op=%p NamedObj=%p\n", 694 WalkState, Op, Op->Named.Node)); 695 696 if (!AcpiNsGetAttachedObject (Op->Named.Node)) 697 { 698 WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node); 699 WalkState->NumOperands = 1; 700 701 Status = AcpiDsCreateOperands ( 702 WalkState, Op->Common.Value.Arg); 703 if (ACPI_SUCCESS (Status)) 704 { 705 Status = AcpiExCreateMethod (Op->Named.Data, 706 Op->Named.Length, WalkState); 707 } 708 709 WalkState->Operands[0] = NULL; 710 WalkState->NumOperands = 0; 711 712 if (ACPI_FAILURE (Status)) 713 { 714 return_ACPI_STATUS (Status); 715 } 716 } 717 } 718 } 719 720 /* Pop the scope stack (only if loading a table) */ 721 722 if (!WalkState->MethodNode && 723 Op->Common.AmlOpcode != AML_EXTERNAL_OP && 724 AcpiNsOpensScope (ObjectType)) 725 { 726 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n", 727 AcpiUtGetTypeName (ObjectType), Op)); 728 729 Status = AcpiDsScopeStackPop (WalkState); 730 } 731 732 return_ACPI_STATUS (Status); 733 } 734