Sync with trunk r63502.
[reactos.git] / drivers / bus / acpi / acpica / dispatcher / dswload2.c
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 - 2014, 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 #define __DSWLOAD2_C__
117
118 #include "acpi.h"
119 #include "accommon.h"
120 #include "acparser.h"
121 #include "amlcode.h"
122 #include "acdispat.h"
123 #include "acinterp.h"
124 #include "acnamesp.h"
125 #include "acevents.h"
126
127 #define _COMPONENT ACPI_DISPATCHER
128 ACPI_MODULE_NAME ("dswload2")
129
130
131 /*******************************************************************************
132 *
133 * FUNCTION: AcpiDsLoad2BeginOp
134 *
135 * PARAMETERS: WalkState - Current state of the parse tree walk
136 * OutOp - Wher to return op if a new one is created
137 *
138 * RETURN: Status
139 *
140 * DESCRIPTION: Descending callback used during the loading of ACPI tables.
141 *
142 ******************************************************************************/
143
144 ACPI_STATUS
145 AcpiDsLoad2BeginOp (
146 ACPI_WALK_STATE *WalkState,
147 ACPI_PARSE_OBJECT **OutOp)
148 {
149 ACPI_PARSE_OBJECT *Op;
150 ACPI_NAMESPACE_NODE *Node;
151 ACPI_STATUS Status;
152 ACPI_OBJECT_TYPE ObjectType;
153 char *BufferPtr;
154 UINT32 Flags;
155
156
157 ACPI_FUNCTION_TRACE (DsLoad2BeginOp);
158
159
160 Op = WalkState->Op;
161 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
162
163 if (Op)
164 {
165 if ((WalkState->ControlState) &&
166 (WalkState->ControlState->Common.State ==
167 ACPI_CONTROL_CONDITIONAL_EXECUTING))
168 {
169 /* We are executing a while loop outside of a method */
170
171 Status = AcpiDsExecBeginOp (WalkState, OutOp);
172 return_ACPI_STATUS (Status);
173 }
174
175 /* We only care about Namespace opcodes here */
176
177 if ((!(WalkState->OpInfo->Flags & AML_NSOPCODE) &&
178 (WalkState->Opcode != AML_INT_NAMEPATH_OP)) ||
179 (!(WalkState->OpInfo->Flags & AML_NAMED)))
180 {
181 return_ACPI_STATUS (AE_OK);
182 }
183
184 /* Get the name we are going to enter or lookup in the namespace */
185
186 if (WalkState->Opcode == AML_INT_NAMEPATH_OP)
187 {
188 /* For Namepath op, get the path string */
189
190 BufferPtr = Op->Common.Value.String;
191 if (!BufferPtr)
192 {
193 /* No name, just exit */
194
195 return_ACPI_STATUS (AE_OK);
196 }
197 }
198 else
199 {
200 /* Get name from the op */
201
202 BufferPtr = ACPI_CAST_PTR (char, &Op->Named.Name);
203 }
204 }
205 else
206 {
207 /* Get the namestring from the raw AML */
208
209 BufferPtr = AcpiPsGetNextNamestring (&WalkState->ParserState);
210 }
211
212 /* Map the opcode into an internal object type */
213
214 ObjectType = WalkState->OpInfo->ObjectType;
215
216 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
217 "State=%p Op=%p Type=%X\n", WalkState, Op, ObjectType));
218
219 switch (WalkState->Opcode)
220 {
221 case AML_FIELD_OP:
222 case AML_BANK_FIELD_OP:
223 case AML_INDEX_FIELD_OP:
224
225 Node = NULL;
226 Status = AE_OK;
227 break;
228
229 case AML_INT_NAMEPATH_OP:
230 /*
231 * The NamePath is an object reference to an existing object.
232 * Don't enter the name into the namespace, but look it up
233 * for use later.
234 */
235 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
236 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
237 WalkState, &(Node));
238 break;
239
240 case AML_SCOPE_OP:
241
242 /* Special case for Scope(\) -> refers to the Root node */
243
244 if (Op && (Op->Named.Node == AcpiGbl_RootNode))
245 {
246 Node = Op->Named.Node;
247
248 Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
249 if (ACPI_FAILURE (Status))
250 {
251 return_ACPI_STATUS (Status);
252 }
253 }
254 else
255 {
256 /*
257 * The Path is an object reference to an existing object.
258 * Don't enter the name into the namespace, but look it up
259 * for use later.
260 */
261 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
262 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
263 WalkState, &(Node));
264 if (ACPI_FAILURE (Status))
265 {
266 #ifdef ACPI_ASL_COMPILER
267 if (Status == AE_NOT_FOUND)
268 {
269 Status = AE_OK;
270 }
271 else
272 {
273 ACPI_ERROR_NAMESPACE (BufferPtr, Status);
274 }
275 #else
276 ACPI_ERROR_NAMESPACE (BufferPtr, Status);
277 #endif
278 return_ACPI_STATUS (Status);
279 }
280 }
281
282 /*
283 * We must check to make sure that the target is
284 * one of the opcodes that actually opens a scope
285 */
286 switch (Node->Type)
287 {
288 case ACPI_TYPE_ANY:
289 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
290 case ACPI_TYPE_DEVICE:
291 case ACPI_TYPE_POWER:
292 case ACPI_TYPE_PROCESSOR:
293 case ACPI_TYPE_THERMAL:
294
295 /* These are acceptable types */
296 break;
297
298 case ACPI_TYPE_INTEGER:
299 case ACPI_TYPE_STRING:
300 case ACPI_TYPE_BUFFER:
301
302 /*
303 * These types we will allow, but we will change the type.
304 * This enables some existing code of the form:
305 *
306 * Name (DEB, 0)
307 * Scope (DEB) { ... }
308 */
309 ACPI_WARNING ((AE_INFO,
310 "Type override - [%4.4s] had invalid type (%s) "
311 "for Scope operator, changed to type ANY",
312 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type)));
313
314 Node->Type = ACPI_TYPE_ANY;
315 WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY;
316 break;
317
318 case ACPI_TYPE_METHOD:
319
320 /*
321 * Allow scope change to root during execution of module-level
322 * code. Root is typed METHOD during this time.
323 */
324 if ((Node == AcpiGbl_RootNode) &&
325 (WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
326 {
327 break;
328 }
329
330 /*lint -fallthrough */
331
332 default:
333
334 /* All other types are an error */
335
336 ACPI_ERROR ((AE_INFO,
337 "Invalid type (%s) for target of "
338 "Scope operator [%4.4s] (Cannot override)",
339 AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node)));
340
341 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
342 }
343 break;
344
345 default:
346
347 /* All other opcodes */
348
349 if (Op && Op->Common.Node)
350 {
351 /* This op/node was previously entered into the namespace */
352
353 Node = Op->Common.Node;
354
355 if (AcpiNsOpensScope (ObjectType))
356 {
357 Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
358 if (ACPI_FAILURE (Status))
359 {
360 return_ACPI_STATUS (Status);
361 }
362 }
363
364 return_ACPI_STATUS (AE_OK);
365 }
366
367 /*
368 * Enter the named type into the internal namespace. We enter the name
369 * as we go downward in the parse tree. Any necessary subobjects that
370 * involve arguments to the opcode must be created as we go back up the
371 * parse tree later.
372 *
373 * Note: Name may already exist if we are executing a deferred opcode.
374 */
375 if (WalkState->DeferredNode)
376 {
377 /* This name is already in the namespace, get the node */
378
379 Node = WalkState->DeferredNode;
380 Status = AE_OK;
381 break;
382 }
383
384 Flags = ACPI_NS_NO_UPSEARCH;
385 if (WalkState->PassNumber == ACPI_IMODE_EXECUTE)
386 {
387 /* Execution mode, node cannot already exist, node is temporary */
388
389 Flags |= ACPI_NS_ERROR_IF_FOUND;
390
391 if (!(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
392 {
393 Flags |= ACPI_NS_TEMPORARY;
394 }
395 }
396
397 /* Add new entry or lookup existing entry */
398
399 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
400 ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node);
401
402 if (ACPI_SUCCESS (Status) && (Flags & ACPI_NS_TEMPORARY))
403 {
404 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
405 "***New Node [%4.4s] %p is temporary\n",
406 AcpiUtGetNodeName (Node), Node));
407 }
408 break;
409 }
410
411 if (ACPI_FAILURE (Status))
412 {
413 ACPI_ERROR_NAMESPACE (BufferPtr, Status);
414 return_ACPI_STATUS (Status);
415 }
416
417 if (!Op)
418 {
419 /* Create a new op */
420
421 Op = AcpiPsAllocOp (WalkState->Opcode);
422 if (!Op)
423 {
424 return_ACPI_STATUS (AE_NO_MEMORY);
425 }
426
427 /* Initialize the new op */
428
429 if (Node)
430 {
431 Op->Named.Name = Node->Name.Integer;
432 }
433 *OutOp = Op;
434 }
435
436 /*
437 * Put the Node in the "op" object that the parser uses, so we
438 * can get it again quickly when this scope is closed
439 */
440 Op->Common.Node = Node;
441 return_ACPI_STATUS (Status);
442 }
443
444
445 /*******************************************************************************
446 *
447 * FUNCTION: AcpiDsLoad2EndOp
448 *
449 * PARAMETERS: WalkState - Current state of the parse tree walk
450 *
451 * RETURN: Status
452 *
453 * DESCRIPTION: Ascending callback used during the loading of the namespace,
454 * both control methods and everything else.
455 *
456 ******************************************************************************/
457
458 ACPI_STATUS
459 AcpiDsLoad2EndOp (
460 ACPI_WALK_STATE *WalkState)
461 {
462 ACPI_PARSE_OBJECT *Op;
463 ACPI_STATUS Status = AE_OK;
464 ACPI_OBJECT_TYPE ObjectType;
465 ACPI_NAMESPACE_NODE *Node;
466 ACPI_PARSE_OBJECT *Arg;
467 ACPI_NAMESPACE_NODE *NewNode;
468 #ifndef ACPI_NO_METHOD_EXECUTION
469 UINT32 i;
470 UINT8 RegionSpace;
471 #endif
472
473
474 ACPI_FUNCTION_TRACE (DsLoad2EndOp);
475
476 Op = WalkState->Op;
477 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
478 WalkState->OpInfo->Name, Op, WalkState));
479
480 /* Check if opcode had an associated namespace object */
481
482 if (!(WalkState->OpInfo->Flags & AML_NSOBJECT))
483 {
484 return_ACPI_STATUS (AE_OK);
485 }
486
487 if (Op->Common.AmlOpcode == AML_SCOPE_OP)
488 {
489 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
490 "Ending scope Op=%p State=%p\n", Op, WalkState));
491 }
492
493 ObjectType = WalkState->OpInfo->ObjectType;
494
495 /*
496 * Get the Node/name from the earlier lookup
497 * (It was saved in the *op structure)
498 */
499 Node = Op->Common.Node;
500
501 /*
502 * Put the Node on the object stack (Contains the ACPI Name of
503 * this object)
504 */
505 WalkState->Operands[0] = (void *) Node;
506 WalkState->NumOperands = 1;
507
508 /* Pop the scope stack */
509
510 if (AcpiNsOpensScope (ObjectType) &&
511 (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP))
512 {
513 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n",
514 AcpiUtGetTypeName (ObjectType), Op));
515
516 Status = AcpiDsScopeStackPop (WalkState);
517 if (ACPI_FAILURE (Status))
518 {
519 goto Cleanup;
520 }
521 }
522
523 /*
524 * Named operations are as follows:
525 *
526 * AML_ALIAS
527 * AML_BANKFIELD
528 * AML_CREATEBITFIELD
529 * AML_CREATEBYTEFIELD
530 * AML_CREATEDWORDFIELD
531 * AML_CREATEFIELD
532 * AML_CREATEQWORDFIELD
533 * AML_CREATEWORDFIELD
534 * AML_DATA_REGION
535 * AML_DEVICE
536 * AML_EVENT
537 * AML_FIELD
538 * AML_INDEXFIELD
539 * AML_METHOD
540 * AML_METHODCALL
541 * AML_MUTEX
542 * AML_NAME
543 * AML_NAMEDFIELD
544 * AML_OPREGION
545 * AML_POWERRES
546 * AML_PROCESSOR
547 * AML_SCOPE
548 * AML_THERMALZONE
549 */
550
551 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
552 "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
553 AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node));
554
555 /* Decode the opcode */
556
557 Arg = Op->Common.Value.Arg;
558
559 switch (WalkState->OpInfo->Type)
560 {
561 #ifndef ACPI_NO_METHOD_EXECUTION
562
563 case AML_TYPE_CREATE_FIELD:
564 /*
565 * Create the field object, but the field buffer and index must
566 * be evaluated later during the execution phase
567 */
568 Status = AcpiDsCreateBufferField (Op, WalkState);
569 break;
570
571 case AML_TYPE_NAMED_FIELD:
572 /*
573 * If we are executing a method, initialize the field
574 */
575 if (WalkState->MethodNode)
576 {
577 Status = AcpiDsInitFieldObjects (Op, WalkState);
578 }
579
580 switch (Op->Common.AmlOpcode)
581 {
582 case AML_INDEX_FIELD_OP:
583
584 Status = AcpiDsCreateIndexField (Op, (ACPI_HANDLE) Arg->Common.Node,
585 WalkState);
586 break;
587
588 case AML_BANK_FIELD_OP:
589
590 Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState);
591 break;
592
593 case AML_FIELD_OP:
594
595 Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState);
596 break;
597
598 default:
599
600 /* All NAMED_FIELD opcodes must be handled above */
601 break;
602 }
603 break;
604
605 case AML_TYPE_NAMED_SIMPLE:
606
607 Status = AcpiDsCreateOperands (WalkState, Arg);
608 if (ACPI_FAILURE (Status))
609 {
610 goto Cleanup;
611 }
612
613 switch (Op->Common.AmlOpcode)
614 {
615 case AML_PROCESSOR_OP:
616
617 Status = AcpiExCreateProcessor (WalkState);
618 break;
619
620 case AML_POWER_RES_OP:
621
622 Status = AcpiExCreatePowerResource (WalkState);
623 break;
624
625 case AML_MUTEX_OP:
626
627 Status = AcpiExCreateMutex (WalkState);
628 break;
629
630 case AML_EVENT_OP:
631
632 Status = AcpiExCreateEvent (WalkState);
633 break;
634
635 case AML_ALIAS_OP:
636
637 Status = AcpiExCreateAlias (WalkState);
638 break;
639
640 default:
641
642 /* Unknown opcode */
643
644 Status = AE_OK;
645 goto Cleanup;
646 }
647
648 /* Delete operands */
649
650 for (i = 1; i < WalkState->NumOperands; i++)
651 {
652 AcpiUtRemoveReference (WalkState->Operands[i]);
653 WalkState->Operands[i] = NULL;
654 }
655
656 break;
657 #endif /* ACPI_NO_METHOD_EXECUTION */
658
659 case AML_TYPE_NAMED_COMPLEX:
660
661 switch (Op->Common.AmlOpcode)
662 {
663 #ifndef ACPI_NO_METHOD_EXECUTION
664 case AML_REGION_OP:
665 case AML_DATA_REGION_OP:
666
667 if (Op->Common.AmlOpcode == AML_REGION_OP)
668 {
669 RegionSpace = (ACPI_ADR_SPACE_TYPE)
670 ((Op->Common.Value.Arg)->Common.Value.Integer);
671 }
672 else
673 {
674 RegionSpace = ACPI_ADR_SPACE_DATA_TABLE;
675 }
676
677 /*
678 * The OpRegion is not fully parsed at this time. The only valid
679 * argument is the SpaceId. (We must save the address of the
680 * AML of the address and length operands)
681 *
682 * If we have a valid region, initialize it. The namespace is
683 * unlocked at this point.
684 *
685 * Need to unlock interpreter if it is locked (if we are running
686 * a control method), in order to allow _REG methods to be run
687 * during AcpiEvInitializeRegion.
688 */
689 if (WalkState->MethodNode)
690 {
691 /*
692 * Executing a method: initialize the region and unlock
693 * the interpreter
694 */
695 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
696 RegionSpace, WalkState);
697 if (ACPI_FAILURE (Status))
698 {
699 return_ACPI_STATUS (Status);
700 }
701
702 AcpiExExitInterpreter ();
703 }
704
705 Status = AcpiEvInitializeRegion (AcpiNsGetAttachedObject (Node),
706 FALSE);
707 if (WalkState->MethodNode)
708 {
709 AcpiExEnterInterpreter ();
710 }
711
712 if (ACPI_FAILURE (Status))
713 {
714 /*
715 * If AE_NOT_EXIST is returned, it is not fatal
716 * because many regions get created before a handler
717 * is installed for said region.
718 */
719 if (AE_NOT_EXIST == Status)
720 {
721 Status = AE_OK;
722 }
723 }
724 break;
725
726 case AML_NAME_OP:
727
728 Status = AcpiDsCreateNode (WalkState, Node, Op);
729 break;
730
731 case AML_METHOD_OP:
732 /*
733 * MethodOp PkgLength NameString MethodFlags TermList
734 *
735 * Note: We must create the method node/object pair as soon as we
736 * see the method declaration. This allows later pass1 parsing
737 * of invocations of the method (need to know the number of
738 * arguments.)
739 */
740 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
741 "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
742 WalkState, Op, Op->Named.Node));
743
744 if (!AcpiNsGetAttachedObject (Op->Named.Node))
745 {
746 WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
747 WalkState->NumOperands = 1;
748
749 Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
750 if (ACPI_SUCCESS (Status))
751 {
752 Status = AcpiExCreateMethod (Op->Named.Data,
753 Op->Named.Length, WalkState);
754 }
755 WalkState->Operands[0] = NULL;
756 WalkState->NumOperands = 0;
757
758 if (ACPI_FAILURE (Status))
759 {
760 return_ACPI_STATUS (Status);
761 }
762 }
763 break;
764
765 #endif /* ACPI_NO_METHOD_EXECUTION */
766
767 default:
768
769 /* All NAMED_COMPLEX opcodes must be handled above */
770 break;
771 }
772 break;
773
774 case AML_CLASS_INTERNAL:
775
776 /* case AML_INT_NAMEPATH_OP: */
777 break;
778
779 case AML_CLASS_METHOD_CALL:
780
781 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
782 "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
783 WalkState, Op, Node));
784
785 /*
786 * Lookup the method name and save the Node
787 */
788 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
789 ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2,
790 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
791 WalkState, &(NewNode));
792 if (ACPI_SUCCESS (Status))
793 {
794 /*
795 * Make sure that what we found is indeed a method
796 * We didn't search for a method on purpose, to see if the name
797 * would resolve
798 */
799 if (NewNode->Type != ACPI_TYPE_METHOD)
800 {
801 Status = AE_AML_OPERAND_TYPE;
802 }
803
804 /* We could put the returned object (Node) on the object stack for
805 * later, but for now, we will put it in the "op" object that the
806 * parser uses, so we can get it again at the end of this scope
807 */
808 Op->Common.Node = NewNode;
809 }
810 else
811 {
812 ACPI_ERROR_NAMESPACE (Arg->Common.Value.String, Status);
813 }
814 break;
815
816
817 default:
818
819 break;
820 }
821
822 Cleanup:
823
824 /* Remove the Node pushed at the very beginning */
825
826 WalkState->Operands[0] = NULL;
827 WalkState->NumOperands = 0;
828 return_ACPI_STATUS (Status);
829 }