diff options
Diffstat (limited to 'sys/contrib/dev/acpica/common/adwalk.c')
-rw-r--r-- | sys/contrib/dev/acpica/common/adwalk.c | 1027 |
1 files changed, 1027 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/common/adwalk.c b/sys/contrib/dev/acpica/common/adwalk.c new file mode 100644 index 0000000..fb136b9 --- /dev/null +++ b/sys/contrib/dev/acpica/common/adwalk.c @@ -0,0 +1,1027 @@ +/****************************************************************************** + * + * Module Name: adwalk - Application-level disassembler parse tree walk routines + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2013, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/include/acparser.h> +#include <contrib/dev/acpica/include/amlcode.h> +#include <contrib/dev/acpica/include/acdisasm.h> +#include <contrib/dev/acpica/include/acdispat.h> +#include <contrib/dev/acpica/include/acnamesp.h> +#include <contrib/dev/acpica/include/acapps.h> + + +#define _COMPONENT ACPI_TOOLS + ACPI_MODULE_NAME ("adwalk") + +/* + * aslmap - opcode mappings and reserved method names + */ +ACPI_OBJECT_TYPE +AslMapNamedOpcodeToDataType ( + UINT16 Opcode); + +/* Local prototypes */ + +static ACPI_STATUS +AcpiDmFindOrphanDescending ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context); + +static ACPI_STATUS +AcpiDmDumpDescending ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context); + +static ACPI_STATUS +AcpiDmXrefDescendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context); + +static ACPI_STATUS +AcpiDmCommonAscendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context); + +static ACPI_STATUS +AcpiDmLoadDescendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context); + +static UINT32 +AcpiDmInspectPossibleArgs ( + UINT32 CurrentOpArgCount, + UINT32 TargetCount, + ACPI_PARSE_OBJECT *Op); + +static ACPI_STATUS +AcpiDmResourceDescendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context); + + +/******************************************************************************* + * + * FUNCTION: AcpiDmDumpTree + * + * PARAMETERS: Origin - Starting object + * + * RETURN: None + * + * DESCRIPTION: Parse tree walk to format and output the nodes + * + ******************************************************************************/ + +void +AcpiDmDumpTree ( + ACPI_PARSE_OBJECT *Origin) +{ + ACPI_OP_WALK_INFO Info; + + + if (!Origin) + { + return; + } + + AcpiOsPrintf ("/*\nAML Parse Tree\n\n"); + Info.Flags = 0; + Info.Count = 0; + Info.Level = 0; + Info.WalkState = NULL; + AcpiDmWalkParseTree (Origin, AcpiDmDumpDescending, NULL, &Info); + AcpiOsPrintf ("*/\n\n"); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmFindOrphanMethods + * + * PARAMETERS: Origin - Starting object + * + * RETURN: None + * + * DESCRIPTION: Parse tree walk to find "orphaned" method invocations -- methods + * that are not resolved in the namespace + * + ******************************************************************************/ + +void +AcpiDmFindOrphanMethods ( + ACPI_PARSE_OBJECT *Origin) +{ + ACPI_OP_WALK_INFO Info; + + + if (!Origin) + { + return; + } + + Info.Flags = 0; + Info.Level = 0; + Info.WalkState = NULL; + AcpiDmWalkParseTree (Origin, AcpiDmFindOrphanDescending, NULL, &Info); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmFinishNamespaceLoad + * + * PARAMETERS: ParseTreeRoot - Root of the parse tree + * NamespaceRoot - Root of the internal namespace + * OwnerId - OwnerId of the table to be disassembled + * + * RETURN: None + * + * DESCRIPTION: Load all namespace items that are created within control + * methods. Used before namespace cross reference + * + ******************************************************************************/ + +void +AcpiDmFinishNamespaceLoad ( + ACPI_PARSE_OBJECT *ParseTreeRoot, + ACPI_NAMESPACE_NODE *NamespaceRoot, + ACPI_OWNER_ID OwnerId) +{ + ACPI_STATUS Status; + ACPI_OP_WALK_INFO Info; + ACPI_WALK_STATE *WalkState; + + + if (!ParseTreeRoot) + { + return; + } + + /* Create and initialize a new walk state */ + + WalkState = AcpiDsCreateWalkState (OwnerId, ParseTreeRoot, NULL, NULL); + if (!WalkState) + { + return; + } + + Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, WalkState); + if (ACPI_FAILURE (Status)) + { + return; + } + + Info.Flags = 0; + Info.Level = 0; + Info.WalkState = WalkState; + AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmLoadDescendingOp, + AcpiDmCommonAscendingOp, &Info); + ACPI_FREE (WalkState); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmCrossReferenceNamespace + * + * PARAMETERS: ParseTreeRoot - Root of the parse tree + * NamespaceRoot - Root of the internal namespace + * OwnerId - OwnerId of the table to be disassembled + * + * RETURN: None + * + * DESCRIPTION: Cross reference the namespace to create externals + * + ******************************************************************************/ + +void +AcpiDmCrossReferenceNamespace ( + ACPI_PARSE_OBJECT *ParseTreeRoot, + ACPI_NAMESPACE_NODE *NamespaceRoot, + ACPI_OWNER_ID OwnerId) +{ + ACPI_STATUS Status; + ACPI_OP_WALK_INFO Info; + ACPI_WALK_STATE *WalkState; + + + if (!ParseTreeRoot) + { + return; + } + + /* Create and initialize a new walk state */ + + WalkState = AcpiDsCreateWalkState (OwnerId, ParseTreeRoot, NULL, NULL); + if (!WalkState) + { + return; + } + + Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, WalkState); + if (ACPI_FAILURE (Status)) + { + return; + } + + Info.Flags = 0; + Info.Level = 0; + Info.WalkState = WalkState; + AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmXrefDescendingOp, + AcpiDmCommonAscendingOp, &Info); + ACPI_FREE (WalkState); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmConvertResourceIndexes + * + * PARAMETERS: ParseTreeRoot - Root of the parse tree + * NamespaceRoot - Root of the internal namespace + * + * RETURN: None + * + * DESCRIPTION: Convert fixed-offset references to resource descriptors to + * symbolic references. Should only be called after namespace has + * been cross referenced. + * + ******************************************************************************/ + +void +AcpiDmConvertResourceIndexes ( + ACPI_PARSE_OBJECT *ParseTreeRoot, + ACPI_NAMESPACE_NODE *NamespaceRoot) +{ + ACPI_STATUS Status; + ACPI_OP_WALK_INFO Info; + ACPI_WALK_STATE *WalkState; + + + if (!ParseTreeRoot) + { + return; + } + + /* Create and initialize a new walk state */ + + WalkState = AcpiDsCreateWalkState (0, ParseTreeRoot, NULL, NULL); + if (!WalkState) + { + return; + } + + Status = AcpiDsScopeStackPush (NamespaceRoot, NamespaceRoot->Type, WalkState); + if (ACPI_FAILURE (Status)) + { + return; + } + + Info.Flags = 0; + Info.Level = 0; + Info.WalkState = WalkState; + AcpiDmWalkParseTree (ParseTreeRoot, AcpiDmResourceDescendingOp, + AcpiDmCommonAscendingOp, &Info); + ACPI_FREE (WalkState); + return; +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmDumpDescending + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Format and print contents of one parse Op. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDmDumpDescending ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + ACPI_OP_WALK_INFO *Info = Context; + char *Path; + + + if (!Op) + { + return (AE_OK); + } + + /* Most of the information (count, level, name) here */ + + Info->Count++; + AcpiOsPrintf ("% 5d [%2.2d] ", Info->Count, Level); + AcpiDmIndent (Level); + AcpiOsPrintf ("%-28s", AcpiPsGetOpcodeName (Op->Common.AmlOpcode)); + + /* Extra info is helpful */ + + switch (Op->Common.AmlOpcode) + { + case AML_BYTE_OP: + case AML_WORD_OP: + case AML_DWORD_OP: + + AcpiOsPrintf ("%X", (UINT32) Op->Common.Value.Integer); + break; + + case AML_QWORD_OP: + + AcpiOsPrintf ("%8.8X%8.8X", ACPI_FORMAT_UINT64 (Op->Common.Value.Integer)); + break; + + case AML_INT_NAMEPATH_OP: + + if (Op->Common.Value.String) + { + AcpiNsExternalizeName (ACPI_UINT32_MAX, Op->Common.Value.String, + NULL, &Path); + AcpiOsPrintf ("%s %p", Path, Op->Common.Node); + ACPI_FREE (Path); + } + else + { + AcpiOsPrintf ("[NULL]"); + } + break; + + case AML_NAME_OP: + case AML_METHOD_OP: + case AML_DEVICE_OP: + case AML_INT_NAMEDFIELD_OP: + + AcpiOsPrintf ("%4.4s", ACPI_CAST_PTR (char, &Op->Named.Name)); + break; + + default: + + break; + } + + AcpiOsPrintf ("\n"); + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmFindOrphanDescending + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Check namepath Ops for orphaned method invocations + * + * Note: Experimental. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDmFindOrphanDescending ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + const ACPI_OPCODE_INFO *OpInfo; + ACPI_PARSE_OBJECT *ChildOp; + ACPI_PARSE_OBJECT *NextOp; + ACPI_PARSE_OBJECT *ParentOp; + UINT32 ArgCount; + + + if (!Op) + { + return (AE_OK); + } + + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + + switch (Op->Common.AmlOpcode) + { +#ifdef ACPI_UNDER_DEVELOPMENT + case AML_ADD_OP: + + ChildOp = Op->Common.Value.Arg; + if ((ChildOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) && + !ChildOp->Common.Node) + { + AcpiNsExternalizeName (ACPI_UINT32_MAX, ChildOp->Common.Value.String, + NULL, &Path); + AcpiOsPrintf ("/* %-16s A-NAMEPATH: %s */\n", Op->Common.AmlOpName, Path); + ACPI_FREE (Path); + + NextOp = Op->Common.Next; + if (!NextOp) + { + /* This NamePath has no args, assume it is an integer */ + + AcpiDmAddToExternalList (ChildOp, ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0); + return (AE_OK); + } + + ArgCount = AcpiDmInspectPossibleArgs (3, 1, NextOp); + AcpiOsPrintf ("/* A-CHILDREN: %u Actual %u */\n", ArgCount, AcpiDmCountChildren (Op)); + + if (ArgCount < 1) + { + /* One Arg means this is just a Store(Name,Target) */ + + AcpiDmAddToExternalList (ChildOp, ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0); + return (AE_OK); + } + + AcpiDmAddToExternalList (ChildOp, ChildOp->Common.Value.String, ACPI_TYPE_METHOD, ArgCount); + } + break; +#endif + + case AML_STORE_OP: + + ChildOp = Op->Common.Value.Arg; + if ((ChildOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) && + !ChildOp->Common.Node) + { + NextOp = Op->Common.Next; + if (!NextOp) + { + /* This NamePath has no args, assume it is an integer */ + + AcpiDmAddToExternalList (ChildOp, ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0); + return (AE_OK); + } + + ArgCount = AcpiDmInspectPossibleArgs (2, 1, NextOp); + if (ArgCount <= 1) + { + /* One Arg means this is just a Store(Name,Target) */ + + AcpiDmAddToExternalList (ChildOp, ChildOp->Common.Value.String, ACPI_TYPE_INTEGER, 0); + return (AE_OK); + } + + AcpiDmAddToExternalList (ChildOp, ChildOp->Common.Value.String, ACPI_TYPE_METHOD, ArgCount); + } + break; + + case AML_INT_NAMEPATH_OP: + + /* Must examine parent to see if this namepath is an argument */ + + ParentOp = Op->Common.Parent; + OpInfo = AcpiPsGetOpcodeInfo (ParentOp->Common.AmlOpcode); + + if ((OpInfo->Class != AML_CLASS_EXECUTE) && + (OpInfo->Class != AML_CLASS_CREATE) && + (OpInfo->ObjectType != ACPI_TYPE_LOCAL_ALIAS) && + (ParentOp->Common.AmlOpcode != AML_INT_METHODCALL_OP) && + !Op->Common.Node) + { + ArgCount = AcpiDmInspectPossibleArgs (0, 0, Op->Common.Next); + + /* + * Check if namepath is a predicate for if/while or lone parameter to + * a return. + */ + if (ArgCount == 0) + { + if (((ParentOp->Common.AmlOpcode == AML_IF_OP) || + (ParentOp->Common.AmlOpcode == AML_WHILE_OP) || + (ParentOp->Common.AmlOpcode == AML_RETURN_OP)) && + + /* And namepath is the first argument */ + (ParentOp->Common.Value.Arg == Op)) + { + AcpiDmAddToExternalList (Op, Op->Common.Value.String, ACPI_TYPE_INTEGER, 0); + break; + } + } + + /* + * This is a standalone namestring (not a parameter to another + * operator) - it *must* be a method invocation, nothing else is + * grammatically possible. + */ + AcpiDmAddToExternalList (Op, Op->Common.Value.String, ACPI_TYPE_METHOD, ArgCount); + + } + break; + + default: + + break; + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmLoadDescendingOp + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Descending handler for namespace control method object load + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDmLoadDescendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + ACPI_OP_WALK_INFO *Info = Context; + const ACPI_OPCODE_INFO *OpInfo; + ACPI_WALK_STATE *WalkState; + ACPI_OBJECT_TYPE ObjectType; + ACPI_STATUS Status; + char *Path = NULL; + ACPI_PARSE_OBJECT *NextOp; + ACPI_NAMESPACE_NODE *Node; + char FieldPath[5]; + BOOLEAN PreDefined = FALSE; + UINT8 PreDefineIndex = 0; + + + WalkState = Info->WalkState; + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + ObjectType = OpInfo->ObjectType; + ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); + + /* Only interested in operators that create new names */ + + if (!(OpInfo->Flags & AML_NAMED) && + !(OpInfo->Flags & AML_CREATE)) + { + goto Exit; + } + + /* Get the NamePath from the appropriate place */ + + if (OpInfo->Flags & AML_NAMED) + { + /* For all named operators, get the new name */ + + Path = (char *) Op->Named.Path; + + if (!Path && Op->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP) + { + *ACPI_CAST_PTR (UINT32, &FieldPath[0]) = Op->Named.Name; + FieldPath[4] = 0; + Path = FieldPath; + } + } + else if (OpInfo->Flags & AML_CREATE) + { + /* New name is the last child */ + + NextOp = Op->Common.Value.Arg; + + while (NextOp->Common.Next) + { + NextOp = NextOp->Common.Next; + } + Path = NextOp->Common.Value.String; + } + + if (!Path) + { + goto Exit; + } + + /* Insert the name into the namespace */ + + Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, + ACPI_IMODE_LOAD_PASS2, ACPI_NS_DONT_OPEN_SCOPE, + WalkState, &Node); + + Op->Common.Node = Node; + + if (ACPI_SUCCESS (Status)) + { + /* Check if it's a predefined node */ + + while (AcpiGbl_PreDefinedNames[PreDefineIndex].Name) + { + if (ACPI_COMPARE_NAME (Node->Name.Ascii, + AcpiGbl_PreDefinedNames[PreDefineIndex].Name)) + { + PreDefined = TRUE; + break; + } + + PreDefineIndex++; + } + + /* + * Set node owner id if it satisfies all the following conditions: + * 1) Not a predefined node, _SB_ etc + * 2) Not the root node + * 3) Not a node created by Scope + */ + + if (!PreDefined && Node != AcpiGbl_RootNode && + Op->Common.AmlOpcode != AML_SCOPE_OP) + { + Node->OwnerId = WalkState->OwnerId; + } + } + + +Exit: + + if (AcpiNsOpensScope (ObjectType)) + { + if (Op->Common.Node) + { + Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, WalkState); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + } + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmXrefDescendingOp + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Descending handler for namespace cross reference + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDmXrefDescendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + ACPI_OP_WALK_INFO *Info = Context; + const ACPI_OPCODE_INFO *OpInfo; + ACPI_WALK_STATE *WalkState; + ACPI_OBJECT_TYPE ObjectType; + ACPI_OBJECT_TYPE ObjectType2; + ACPI_STATUS Status; + char *Path = NULL; + ACPI_PARSE_OBJECT *NextOp; + ACPI_NAMESPACE_NODE *Node; + ACPI_OPERAND_OBJECT *Object; + UINT32 ParamCount = 0; + + + WalkState = Info->WalkState; + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + ObjectType = OpInfo->ObjectType; + ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); + + if ((!(OpInfo->Flags & AML_NAMED)) && + (!(OpInfo->Flags & AML_CREATE)) && + (Op->Common.AmlOpcode != AML_INT_NAMEPATH_OP)) + { + goto Exit; + } + + /* Get the NamePath from the appropriate place */ + + if (OpInfo->Flags & AML_NAMED) + { + /* + * Only these two operators (Alias, Scope) refer to an existing + * name, it is the first argument + */ + if (Op->Common.AmlOpcode == AML_ALIAS_OP) + { + ObjectType = ACPI_TYPE_ANY; + + NextOp = Op->Common.Value.Arg; + NextOp = NextOp->Common.Value.Arg; + if (NextOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) + { + Path = NextOp->Common.Value.String; + } + } + else if (Op->Common.AmlOpcode == AML_SCOPE_OP) + { + Path = (char *) Op->Named.Path; + } + } + else if (OpInfo->Flags & AML_CREATE) + { + /* Referenced Buffer Name is the first child */ + + ObjectType = ACPI_TYPE_BUFFER; /* Change from TYPE_BUFFER_FIELD */ + + NextOp = Op->Common.Value.Arg; + if (NextOp->Common.AmlOpcode == AML_INT_NAMEPATH_OP) + { + Path = NextOp->Common.Value.String; + } + } + else + { + Path = Op->Common.Value.String; + } + + if (!Path) + { + goto Exit; + } + + /* + * Lookup the name in the namespace. Name must exist at this point, or it + * is an invalid reference. + * + * The namespace is also used as a lookup table for references to resource + * descriptors and the fields within them. + */ + Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, + WalkState, &Node); + if (ACPI_SUCCESS (Status) && (Node->Flags & ANOBJ_IS_EXTERNAL)) + { + Status = AE_NOT_FOUND; + } + + if (ACPI_FAILURE (Status)) + { + if (Status == AE_NOT_FOUND) + { + AcpiDmAddToExternalList (Op, Path, (UINT8) ObjectType, 0); + + /* + * We could install this into the namespace, but we catch duplicate + * externals when they are added to the list. + */ +#if 0 + Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY, + ACPI_IMODE_LOAD_PASS1, ACPI_NS_DONT_OPEN_SCOPE, + WalkState, &Node); +#endif + } + } + + /* + * Found the node in external table, add it to external list + * Node->OwnerId == 0 indicates built-in ACPI Names, _OS_ etc + */ + else if (Node->OwnerId && WalkState->OwnerId != Node->OwnerId) + { + ObjectType2 = ObjectType; + + Object = AcpiNsGetAttachedObject (Node); + if (Object) + { + ObjectType2 = Object->Common.Type; + if (ObjectType2 == ACPI_TYPE_METHOD) + { + ParamCount = Object->Method.ParamCount; + } + } + + AcpiDmAddToExternalList (Op, Path, (UINT8) ObjectType2, ParamCount | 0x80); + Op->Common.Node = Node; + } + else + { + Op->Common.Node = Node; + } + + +Exit: + /* Open new scope if necessary */ + + if (AcpiNsOpensScope (ObjectType)) + { + if (Op->Common.Node) + { + Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, WalkState); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + } + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmResourceDescendingOp + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: None + * + * DESCRIPTION: Process one parse op during symbolic resource index conversion. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDmResourceDescendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + ACPI_OP_WALK_INFO *Info = Context; + const ACPI_OPCODE_INFO *OpInfo; + ACPI_WALK_STATE *WalkState; + ACPI_OBJECT_TYPE ObjectType; + ACPI_STATUS Status; + + + WalkState = Info->WalkState; + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + + /* Open new scope if necessary */ + + ObjectType = OpInfo->ObjectType; + if (AcpiNsOpensScope (ObjectType)) + { + if (Op->Common.Node) + { + + Status = AcpiDsScopeStackPush (Op->Common.Node, ObjectType, WalkState); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + } + } + + /* + * Check if this operator contains a reference to a resource descriptor. + * If so, convert the reference into a symbolic reference. + */ + AcpiDmCheckResourceReference (Op, WalkState); + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmCommonAscendingOp + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: None + * + * DESCRIPTION: Ascending handler for combined parse/namespace walks. Closes + * scope if necessary. + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDmCommonAscendingOp ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + ACPI_OP_WALK_INFO *Info = Context; + const ACPI_OPCODE_INFO *OpInfo; + ACPI_OBJECT_TYPE ObjectType; + + + /* Close scope if necessary */ + + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + ObjectType = OpInfo->ObjectType; + ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode); + + if (AcpiNsOpensScope (ObjectType)) + { + (void) AcpiDsScopeStackPop (Info->WalkState); + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmInspectPossibleArgs + * + * PARAMETERS: CurrentOpArgCount - Which arg of the current op was the + * possible method invocation found + * TargetCount - Number of targets (0,1,2) for this op + * Op - Parse op + * + * RETURN: Status + * + * DESCRIPTION: Examine following args and next ops for possible arguments + * for an unrecognized method invocation. + * + ******************************************************************************/ + +static UINT32 +AcpiDmInspectPossibleArgs ( + UINT32 CurrentOpArgCount, + UINT32 TargetCount, + ACPI_PARSE_OBJECT *Op) +{ + const ACPI_OPCODE_INFO *OpInfo; + UINT32 i; + UINT32 Last = 0; + UINT32 Lookahead; + + + Lookahead = (ACPI_METHOD_NUM_ARGS + TargetCount) - CurrentOpArgCount; + + /* Lookahead for the maximum number of possible arguments */ + + for (i = 0; i < Lookahead; i++) + { + if (!Op) + { + break; + } + + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + + /* + * Any one of these operators is "very probably" not a method arg + */ + if ((Op->Common.AmlOpcode == AML_STORE_OP) || + (Op->Common.AmlOpcode == AML_NOTIFY_OP)) + { + break; + } + + if ((OpInfo->Class != AML_CLASS_EXECUTE) && + (OpInfo->Class != AML_CLASS_CONTROL)) + { + Last = i+1; + } + + Op = Op->Common.Next; + } + + return (Last); +} |