1 /******************************************************************************
3 * Module Name: dswload - Dispatcher namespace load callbacks
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
12 * All rights reserved.
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
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
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;
37 * The above copyright and patent license is granted only if the following
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.
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
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
72 * 3.4. Intel retains all right, title, and interest in and to the Original
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.
80 * 4. Disclaimer and Export Compliance
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
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
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.
114 *****************************************************************************/
116 #define __DSWLOAD_C__
118 #include <contrib/dev/acpica/include/acpi.h>
119 #include <contrib/dev/acpica/include/accommon.h>
120 #include <contrib/dev/acpica/include/acparser.h>
121 #include <contrib/dev/acpica/include/amlcode.h>
122 #include <contrib/dev/acpica/include/acdispat.h>
123 #include <contrib/dev/acpica/include/acinterp.h>
124 #include <contrib/dev/acpica/include/acnamesp.h>
125 #include <contrib/dev/acpica/include/acevents.h>
127 #ifdef ACPI_ASL_COMPILER
128 #include <contrib/dev/acpica/include/acdisasm.h>
131 #define _COMPONENT ACPI_DISPATCHER
132 ACPI_MODULE_NAME ("dswload")
135 /*******************************************************************************
137 * FUNCTION: AcpiDsInitCallbacks
139 * PARAMETERS: WalkState - Current state of the parse tree walk
140 * PassNumber - 1, 2, or 3
144 * DESCRIPTION: Init walk state callbacks
146 ******************************************************************************/
149 AcpiDsInitCallbacks (
150 ACPI_WALK_STATE *WalkState,
157 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 |
158 ACPI_PARSE_DELETE_TREE;
159 WalkState->DescendingCallback = AcpiDsLoad1BeginOp;
160 WalkState->AscendingCallback = AcpiDsLoad1EndOp;
164 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 |
165 ACPI_PARSE_DELETE_TREE;
166 WalkState->DescendingCallback = AcpiDsLoad2BeginOp;
167 WalkState->AscendingCallback = AcpiDsLoad2EndOp;
171 #ifndef ACPI_NO_METHOD_EXECUTION
172 WalkState->ParseFlags |= ACPI_PARSE_EXECUTE |
173 ACPI_PARSE_DELETE_TREE;
174 WalkState->DescendingCallback = AcpiDsExecBeginOp;
175 WalkState->AscendingCallback = AcpiDsExecEndOp;
180 return (AE_BAD_PARAMETER);
187 /*******************************************************************************
189 * FUNCTION: AcpiDsLoad1BeginOp
191 * PARAMETERS: WalkState - Current state of the parse tree walk
192 * OutOp - Where to return op if a new one is created
196 * DESCRIPTION: Descending callback used during the loading of ACPI tables.
198 ******************************************************************************/
202 ACPI_WALK_STATE *WalkState,
203 ACPI_PARSE_OBJECT **OutOp)
205 ACPI_PARSE_OBJECT *Op;
206 ACPI_NAMESPACE_NODE *Node;
208 ACPI_OBJECT_TYPE ObjectType;
213 ACPI_FUNCTION_TRACE (DsLoad1BeginOp);
217 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
219 /* We are only interested in opcodes that have an associated name */
223 if (!(WalkState->OpInfo->Flags & AML_NAMED))
226 return_ACPI_STATUS (AE_OK);
229 /* Check if this object has already been installed in the namespace */
234 return_ACPI_STATUS (AE_OK);
238 Path = AcpiPsGetNextNamestring (&WalkState->ParserState);
240 /* Map the raw opcode into an internal object type */
242 ObjectType = WalkState->OpInfo->ObjectType;
244 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
245 "State=%p Op=%p [%s]\n", WalkState, Op, AcpiUtGetTypeName (ObjectType)));
247 switch (WalkState->Opcode)
252 * The target name of the Scope() operator must exist at this point so
253 * that we can actually open the scope to enter new names underneath it.
254 * Allow search-to-root for single namesegs.
256 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
257 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &(Node));
258 #ifdef ACPI_ASL_COMPILER
259 if (Status == AE_NOT_FOUND)
263 * Target of Scope() not found. Generate an External for it, and
264 * insert the name into the namespace.
266 AcpiDmAddToExternalList (Path, ACPI_TYPE_DEVICE, 0);
267 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
268 ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT,
272 if (ACPI_FAILURE (Status))
274 ACPI_ERROR_NAMESPACE (Path, Status);
275 return_ACPI_STATUS (Status);
279 * Check to make sure that the target is
280 * one of the opcodes that actually opens a scope
285 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
286 case ACPI_TYPE_DEVICE:
287 case ACPI_TYPE_POWER:
288 case ACPI_TYPE_PROCESSOR:
289 case ACPI_TYPE_THERMAL:
291 /* These are acceptable types */
294 case ACPI_TYPE_INTEGER:
295 case ACPI_TYPE_STRING:
296 case ACPI_TYPE_BUFFER:
299 * These types we will allow, but we will change the type. This
300 * enables some existing code of the form:
303 * Scope (DEB) { ... }
305 * Note: silently change the type here. On the second pass, we will report
308 ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
309 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
310 Path, AcpiUtGetTypeName (Node->Type)));
312 Node->Type = ACPI_TYPE_ANY;
313 WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY;
318 /* All other types are an error */
320 ACPI_ERROR ((AE_INFO,
321 "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)",
322 AcpiUtGetTypeName (Node->Type), Path));
324 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
331 * For all other named opcodes, we will enter the name into
334 * Setup the search flags.
335 * Since we are entering a name into the namespace, we do not want to
336 * enable the search-to-root upsearch.
338 * There are only two conditions where it is acceptable that the name
340 * 1) the Scope() operator can reopen a scoping object that was
341 * previously defined (Scope, Method, Device, etc.)
342 * 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer,
343 * BufferField, or Package), the name of the object is already
346 if (WalkState->DeferredNode)
348 /* This name is already in the namespace, get the node */
350 Node = WalkState->DeferredNode;
356 * If we are executing a method, do not create any namespace objects
357 * during the load phase, only during execution.
359 if (WalkState->MethodNode)
366 Flags = ACPI_NS_NO_UPSEARCH;
367 if ((WalkState->Opcode != AML_SCOPE_OP) &&
368 (!(WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP)))
370 Flags |= ACPI_NS_ERROR_IF_FOUND;
371 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n",
372 AcpiUtGetTypeName (ObjectType)));
376 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
377 "[%s] Both Find or Create allowed\n",
378 AcpiUtGetTypeName (ObjectType)));
382 * Enter the named type into the internal namespace. We enter the name
383 * as we go downward in the parse tree. Any necessary subobjects that
384 * involve arguments to the opcode must be created as we go back up the
387 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
388 ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node);
389 if (ACPI_FAILURE (Status))
391 if (Status == AE_ALREADY_EXISTS)
393 /* The name already exists in this scope */
395 if (Node->Flags & ANOBJ_IS_EXTERNAL)
398 * Allow one create on an object or segment that was
399 * previously declared External
401 Node->Flags &= ~ANOBJ_IS_EXTERNAL;
402 Node->Type = (UINT8) ObjectType;
404 /* Just retyped a node, probably will need to open a scope */
406 if (AcpiNsOpensScope (ObjectType))
408 Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
409 if (ACPI_FAILURE (Status))
411 return_ACPI_STATUS (Status);
419 if (ACPI_FAILURE (Status))
421 ACPI_ERROR_NAMESPACE (Path, Status);
422 return_ACPI_STATUS (Status);
432 /* Create a new op */
434 Op = AcpiPsAllocOp (WalkState->Opcode);
437 return_ACPI_STATUS (AE_NO_MEMORY);
441 /* Initialize the op */
443 #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
444 Op->Named.Path = ACPI_CAST_PTR (UINT8, Path);
450 * Put the Node in the "op" object that the parser uses, so we
451 * can get it again quickly when this scope is closed
453 Op->Common.Node = Node;
454 Op->Named.Name = Node->Name.Integer;
457 AcpiPsAppendArg (AcpiPsGetParentScope (&WalkState->ParserState), Op);
459 return_ACPI_STATUS (Status);
463 /*******************************************************************************
465 * FUNCTION: AcpiDsLoad1EndOp
467 * PARAMETERS: WalkState - Current state of the parse tree walk
471 * DESCRIPTION: Ascending callback used during the loading of the namespace,
472 * both control methods and everything else.
474 ******************************************************************************/
478 ACPI_WALK_STATE *WalkState)
480 ACPI_PARSE_OBJECT *Op;
481 ACPI_OBJECT_TYPE ObjectType;
482 ACPI_STATUS Status = AE_OK;
485 ACPI_FUNCTION_TRACE (DsLoad1EndOp);
489 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
491 /* We are only interested in opcodes that have an associated name */
493 if (!(WalkState->OpInfo->Flags & (AML_NAMED | AML_FIELD)))
495 return_ACPI_STATUS (AE_OK);
498 /* Get the object type to determine if we should pop the scope */
500 ObjectType = WalkState->OpInfo->ObjectType;
502 #ifndef ACPI_NO_METHOD_EXECUTION
503 if (WalkState->OpInfo->Flags & AML_FIELD)
506 * If we are executing a method, do not create any namespace objects
507 * during the load phase, only during execution.
509 if (!WalkState->MethodNode)
511 if (WalkState->Opcode == AML_FIELD_OP ||
512 WalkState->Opcode == AML_BANK_FIELD_OP ||
513 WalkState->Opcode == AML_INDEX_FIELD_OP)
515 Status = AcpiDsInitFieldObjects (Op, WalkState);
518 return_ACPI_STATUS (Status);
522 * If we are executing a method, do not create any namespace objects
523 * during the load phase, only during execution.
525 if (!WalkState->MethodNode)
527 if (Op->Common.AmlOpcode == AML_REGION_OP)
529 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
530 (ACPI_ADR_SPACE_TYPE) ((Op->Common.Value.Arg)->Common.Value.Integer),
532 if (ACPI_FAILURE (Status))
534 return_ACPI_STATUS (Status);
537 else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP)
539 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
540 REGION_DATA_TABLE, WalkState);
541 if (ACPI_FAILURE (Status))
543 return_ACPI_STATUS (Status);
549 if (Op->Common.AmlOpcode == AML_NAME_OP)
551 /* For Name opcode, get the object type from the argument */
553 if (Op->Common.Value.Arg)
555 ObjectType = (AcpiPsGetOpcodeInfo (
556 (Op->Common.Value.Arg)->Common.AmlOpcode))->ObjectType;
558 /* Set node type if we have a namespace node */
562 Op->Common.Node->Type = (UINT8) ObjectType;
568 * If we are executing a method, do not create any namespace objects
569 * during the load phase, only during execution.
571 if (!WalkState->MethodNode)
573 if (Op->Common.AmlOpcode == AML_METHOD_OP)
576 * MethodOp PkgLength NameString MethodFlags TermList
578 * Note: We must create the method node/object pair as soon as we
579 * see the method declaration. This allows later pass1 parsing
580 * of invocations of the method (need to know the number of
583 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
584 "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
585 WalkState, Op, Op->Named.Node));
587 if (!AcpiNsGetAttachedObject (Op->Named.Node))
589 WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
590 WalkState->NumOperands = 1;
592 Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
593 if (ACPI_SUCCESS (Status))
595 Status = AcpiExCreateMethod (Op->Named.Data,
596 Op->Named.Length, WalkState);
599 WalkState->Operands[0] = NULL;
600 WalkState->NumOperands = 0;
602 if (ACPI_FAILURE (Status))
604 return_ACPI_STATUS (Status);
610 /* Pop the scope stack (only if loading a table) */
612 if (!WalkState->MethodNode &&
613 AcpiNsOpensScope (ObjectType))
615 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n",
616 AcpiUtGetTypeName (ObjectType), Op));
618 Status = AcpiDsScopeStackPop (WalkState);
621 return_ACPI_STATUS (Status);
625 /*******************************************************************************
627 * FUNCTION: AcpiDsLoad2BeginOp
629 * PARAMETERS: WalkState - Current state of the parse tree walk
630 * OutOp - Wher to return op if a new one is created
634 * DESCRIPTION: Descending callback used during the loading of ACPI tables.
636 ******************************************************************************/
640 ACPI_WALK_STATE *WalkState,
641 ACPI_PARSE_OBJECT **OutOp)
643 ACPI_PARSE_OBJECT *Op;
644 ACPI_NAMESPACE_NODE *Node;
646 ACPI_OBJECT_TYPE ObjectType;
651 ACPI_FUNCTION_TRACE (DsLoad2BeginOp);
655 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
659 if ((WalkState->ControlState) &&
660 (WalkState->ControlState->Common.State ==
661 ACPI_CONTROL_CONDITIONAL_EXECUTING))
663 /* We are executing a while loop outside of a method */
665 Status = AcpiDsExecBeginOp (WalkState, OutOp);
666 return_ACPI_STATUS (Status);
669 /* We only care about Namespace opcodes here */
671 if ((!(WalkState->OpInfo->Flags & AML_NSOPCODE) &&
672 (WalkState->Opcode != AML_INT_NAMEPATH_OP)) ||
673 (!(WalkState->OpInfo->Flags & AML_NAMED)))
675 #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
676 if ((WalkState->OpInfo->Class == AML_CLASS_EXECUTE) ||
677 (WalkState->OpInfo->Class == AML_CLASS_CONTROL))
679 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
680 "Begin/EXEC: %s (fl %8.8X)\n", WalkState->OpInfo->Name,
681 WalkState->OpInfo->Flags));
683 /* Executing a type1 or type2 opcode outside of a method */
685 Status = AcpiDsExecBeginOp (WalkState, OutOp);
686 return_ACPI_STATUS (Status);
689 return_ACPI_STATUS (AE_OK);
692 /* Get the name we are going to enter or lookup in the namespace */
694 if (WalkState->Opcode == AML_INT_NAMEPATH_OP)
696 /* For Namepath op, get the path string */
698 BufferPtr = Op->Common.Value.String;
701 /* No name, just exit */
703 return_ACPI_STATUS (AE_OK);
708 /* Get name from the op */
710 BufferPtr = ACPI_CAST_PTR (char, &Op->Named.Name);
715 /* Get the namestring from the raw AML */
717 BufferPtr = AcpiPsGetNextNamestring (&WalkState->ParserState);
720 /* Map the opcode into an internal object type */
722 ObjectType = WalkState->OpInfo->ObjectType;
724 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
725 "State=%p Op=%p Type=%X\n", WalkState, Op, ObjectType));
727 switch (WalkState->Opcode)
730 case AML_BANK_FIELD_OP:
731 case AML_INDEX_FIELD_OP:
737 case AML_INT_NAMEPATH_OP:
739 * The NamePath is an object reference to an existing object.
740 * Don't enter the name into the namespace, but look it up
743 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
744 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
750 * The Path is an object reference to an existing object.
751 * Don't enter the name into the namespace, but look it up
754 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
755 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
757 if (ACPI_FAILURE (Status))
759 #ifdef ACPI_ASL_COMPILER
760 if (Status == AE_NOT_FOUND)
766 ACPI_ERROR_NAMESPACE (BufferPtr, Status);
769 ACPI_ERROR_NAMESPACE (BufferPtr, Status);
771 return_ACPI_STATUS (Status);
775 * We must check to make sure that the target is
776 * one of the opcodes that actually opens a scope
781 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
782 case ACPI_TYPE_DEVICE:
783 case ACPI_TYPE_POWER:
784 case ACPI_TYPE_PROCESSOR:
785 case ACPI_TYPE_THERMAL:
787 /* These are acceptable types */
790 case ACPI_TYPE_INTEGER:
791 case ACPI_TYPE_STRING:
792 case ACPI_TYPE_BUFFER:
795 * These types we will allow, but we will change the type. This
796 * enables some existing code of the form:
799 * Scope (DEB) { ... }
801 ACPI_WARNING ((AE_INFO,
802 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)",
803 BufferPtr, AcpiUtGetTypeName (Node->Type)));
805 Node->Type = ACPI_TYPE_ANY;
806 WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY;
811 /* All other types are an error */
813 ACPI_ERROR ((AE_INFO,
814 "Invalid type (%s) for target of Scope operator [%4.4s]",
815 AcpiUtGetTypeName (Node->Type), BufferPtr));
817 return (AE_AML_OPERAND_TYPE);
823 /* All other opcodes */
825 if (Op && Op->Common.Node)
827 /* This op/node was previously entered into the namespace */
829 Node = Op->Common.Node;
831 if (AcpiNsOpensScope (ObjectType))
833 Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
834 if (ACPI_FAILURE (Status))
836 return_ACPI_STATUS (Status);
840 return_ACPI_STATUS (AE_OK);
844 * Enter the named type into the internal namespace. We enter the name
845 * as we go downward in the parse tree. Any necessary subobjects that
846 * involve arguments to the opcode must be created as we go back up the
849 * Note: Name may already exist if we are executing a deferred opcode.
851 if (WalkState->DeferredNode)
853 /* This name is already in the namespace, get the node */
855 Node = WalkState->DeferredNode;
860 Flags = ACPI_NS_NO_UPSEARCH;
861 if (WalkState->PassNumber == ACPI_IMODE_EXECUTE)
863 /* Execution mode, node cannot already exist, node is temporary */
865 Flags |= (ACPI_NS_ERROR_IF_FOUND | ACPI_NS_TEMPORARY);
868 /* Add new entry or lookup existing entry */
870 Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
871 ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node);
873 if (ACPI_SUCCESS (Status) && (Flags & ACPI_NS_TEMPORARY))
875 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
876 "***New Node [%4.4s] %p is temporary\n",
877 AcpiUtGetNodeName (Node), Node));
882 if (ACPI_FAILURE (Status))
884 ACPI_ERROR_NAMESPACE (BufferPtr, Status);
885 return_ACPI_STATUS (Status);
890 /* Create a new op */
892 Op = AcpiPsAllocOp (WalkState->Opcode);
895 return_ACPI_STATUS (AE_NO_MEMORY);
898 /* Initialize the new op */
902 Op->Named.Name = Node->Name.Integer;
908 * Put the Node in the "op" object that the parser uses, so we
909 * can get it again quickly when this scope is closed
911 Op->Common.Node = Node;
912 return_ACPI_STATUS (Status);
916 /*******************************************************************************
918 * FUNCTION: AcpiDsLoad2EndOp
920 * PARAMETERS: WalkState - Current state of the parse tree walk
924 * DESCRIPTION: Ascending callback used during the loading of the namespace,
925 * both control methods and everything else.
927 ******************************************************************************/
931 ACPI_WALK_STATE *WalkState)
933 ACPI_PARSE_OBJECT *Op;
934 ACPI_STATUS Status = AE_OK;
935 ACPI_OBJECT_TYPE ObjectType;
936 ACPI_NAMESPACE_NODE *Node;
937 ACPI_PARSE_OBJECT *Arg;
938 ACPI_NAMESPACE_NODE *NewNode;
939 #ifndef ACPI_NO_METHOD_EXECUTION
945 ACPI_FUNCTION_TRACE (DsLoad2EndOp);
948 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
949 WalkState->OpInfo->Name, Op, WalkState));
951 /* Check if opcode had an associated namespace object */
953 if (!(WalkState->OpInfo->Flags & AML_NSOBJECT))
955 #ifndef ACPI_NO_METHOD_EXECUTION
956 #ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
957 /* No namespace object. Executable opcode? */
959 if ((WalkState->OpInfo->Class == AML_CLASS_EXECUTE) ||
960 (WalkState->OpInfo->Class == AML_CLASS_CONTROL))
962 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
963 "End/EXEC: %s (fl %8.8X)\n", WalkState->OpInfo->Name,
964 WalkState->OpInfo->Flags));
966 /* Executing a type1 or type2 opcode outside of a method */
968 Status = AcpiDsExecEndOp (WalkState);
969 return_ACPI_STATUS (Status);
973 return_ACPI_STATUS (AE_OK);
976 if (Op->Common.AmlOpcode == AML_SCOPE_OP)
978 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
979 "Ending scope Op=%p State=%p\n", Op, WalkState));
982 ObjectType = WalkState->OpInfo->ObjectType;
985 * Get the Node/name from the earlier lookup
986 * (It was saved in the *op structure)
988 Node = Op->Common.Node;
991 * Put the Node on the object stack (Contains the ACPI Name of
994 WalkState->Operands[0] = (void *) Node;
995 WalkState->NumOperands = 1;
997 /* Pop the scope stack */
999 if (AcpiNsOpensScope (ObjectType) &&
1000 (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP))
1002 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n",
1003 AcpiUtGetTypeName (ObjectType), Op));
1005 Status = AcpiDsScopeStackPop (WalkState);
1006 if (ACPI_FAILURE (Status))
1013 * Named operations are as follows:
1017 * AML_CREATEBITFIELD
1018 * AML_CREATEBYTEFIELD
1019 * AML_CREATEDWORDFIELD
1021 * AML_CREATEQWORDFIELD
1022 * AML_CREATEWORDFIELD
1040 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
1041 "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
1042 AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node));
1044 /* Decode the opcode */
1046 Arg = Op->Common.Value.Arg;
1048 switch (WalkState->OpInfo->Type)
1050 #ifndef ACPI_NO_METHOD_EXECUTION
1052 case AML_TYPE_CREATE_FIELD:
1054 * Create the field object, but the field buffer and index must
1055 * be evaluated later during the execution phase
1057 Status = AcpiDsCreateBufferField (Op, WalkState);
1061 case AML_TYPE_NAMED_FIELD:
1063 * If we are executing a method, initialize the field
1065 if (WalkState->MethodNode)
1067 Status = AcpiDsInitFieldObjects (Op, WalkState);
1070 switch (Op->Common.AmlOpcode)
1072 case AML_INDEX_FIELD_OP:
1074 Status = AcpiDsCreateIndexField (Op, (ACPI_HANDLE) Arg->Common.Node,
1078 case AML_BANK_FIELD_OP:
1080 Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState);
1085 Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState);
1089 /* All NAMED_FIELD opcodes must be handled above */
1095 case AML_TYPE_NAMED_SIMPLE:
1097 Status = AcpiDsCreateOperands (WalkState, Arg);
1098 if (ACPI_FAILURE (Status))
1103 switch (Op->Common.AmlOpcode)
1105 case AML_PROCESSOR_OP:
1107 Status = AcpiExCreateProcessor (WalkState);
1110 case AML_POWER_RES_OP:
1112 Status = AcpiExCreatePowerResource (WalkState);
1117 Status = AcpiExCreateMutex (WalkState);
1122 Status = AcpiExCreateEvent (WalkState);
1128 Status = AcpiExCreateAlias (WalkState);
1132 /* Unknown opcode */
1138 /* Delete operands */
1140 for (i = 1; i < WalkState->NumOperands; i++)
1142 AcpiUtRemoveReference (WalkState->Operands[i]);
1143 WalkState->Operands[i] = NULL;
1147 #endif /* ACPI_NO_METHOD_EXECUTION */
1149 case AML_TYPE_NAMED_COMPLEX:
1151 switch (Op->Common.AmlOpcode)
1153 #ifndef ACPI_NO_METHOD_EXECUTION
1155 case AML_DATA_REGION_OP:
1157 if (Op->Common.AmlOpcode == AML_REGION_OP)
1159 RegionSpace = (ACPI_ADR_SPACE_TYPE)
1160 ((Op->Common.Value.Arg)->Common.Value.Integer);
1164 RegionSpace = REGION_DATA_TABLE;
1168 * If we are executing a method, initialize the region
1170 if (WalkState->MethodNode)
1172 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
1173 RegionSpace, WalkState);
1174 if (ACPI_FAILURE (Status))
1181 * The OpRegion is not fully parsed at this time. Only valid
1182 * argument is the SpaceId. (We must save the address of the
1183 * AML of the address and length operands)
1187 * If we have a valid region, initialize it
1188 * Namespace is NOT locked at this point.
1190 * TBD: need to unlock interpreter if it is locked, in order
1191 * to allow _REG methods to be run.
1193 Status = AcpiEvInitializeRegion (AcpiNsGetAttachedObject (Node),
1195 if (ACPI_FAILURE (Status))
1198 * If AE_NOT_EXIST is returned, it is not fatal
1199 * because many regions get created before a handler
1200 * is installed for said region.
1202 if (AE_NOT_EXIST == Status)
1212 Status = AcpiDsCreateNode (WalkState, Node, Op);
1218 * MethodOp PkgLength NameString MethodFlags TermList
1220 * Note: We must create the method node/object pair as soon as we
1221 * see the method declaration. This allows later pass1 parsing
1222 * of invocations of the method (need to know the number of
1225 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
1226 "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
1227 WalkState, Op, Op->Named.Node));
1229 if (!AcpiNsGetAttachedObject (Op->Named.Node))
1231 WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
1232 WalkState->NumOperands = 1;
1234 Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
1235 if (ACPI_SUCCESS (Status))
1237 Status = AcpiExCreateMethod (Op->Named.Data,
1238 Op->Named.Length, WalkState);
1240 WalkState->Operands[0] = NULL;
1241 WalkState->NumOperands = 0;
1243 if (ACPI_FAILURE (Status))
1245 return_ACPI_STATUS (Status);
1250 #endif /* ACPI_NO_METHOD_EXECUTION */
1253 /* All NAMED_COMPLEX opcodes must be handled above */
1259 case AML_CLASS_INTERNAL:
1261 /* case AML_INT_NAMEPATH_OP: */
1265 case AML_CLASS_METHOD_CALL:
1267 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
1268 "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
1269 WalkState, Op, Node));
1272 * Lookup the method name and save the Node
1274 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
1275 ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2,
1276 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
1277 WalkState, &(NewNode));
1278 if (ACPI_SUCCESS (Status))
1281 * Make sure that what we found is indeed a method
1282 * We didn't search for a method on purpose, to see if the name
1285 if (NewNode->Type != ACPI_TYPE_METHOD)
1287 Status = AE_AML_OPERAND_TYPE;
1290 /* We could put the returned object (Node) on the object stack for
1291 * later, but for now, we will put it in the "op" object that the
1292 * parser uses, so we can get it again at the end of this scope
1294 Op->Common.Node = NewNode;
1298 ACPI_ERROR_NAMESPACE (Arg->Common.Value.String, Status);
1309 /* Remove the Node pushed at the very beginning */
1311 WalkState->Operands[0] = NULL;
1312 WalkState->NumOperands = 0;
1313 return_ACPI_STATUS (Status);