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 - 2023, 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
AcpiDsLoad2BeginOp(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT ** OutOp)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
AcpiDsLoad2EndOp(ACPI_WALK_STATE * WalkState)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
