forked from KolibriOS/kolibrios
653 lines
21 KiB
C
653 lines
21 KiB
C
|
|
/******************************************************************************
|
|
*
|
|
* Module Name: exresolv - AML Interpreter object resolution
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
|
|
* All rights reserved.
|
|
*
|
|
* 2. License
|
|
*
|
|
* 2.1. This is your license from Intel Corp. under its intellectual property
|
|
* rights. You may have additional license terms from the party that provided
|
|
* you this software, covering your right to use that party's intellectual
|
|
* property rights.
|
|
*
|
|
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
|
|
* copy of the source code appearing in this file ("Covered Code") an
|
|
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
|
|
* base code distributed originally by Intel ("Original Intel Code") to copy,
|
|
* make derivatives, distribute, use and display any portion of the Covered
|
|
* Code in any form, with the right to sublicense such rights; and
|
|
*
|
|
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
|
|
* license (with the right to sublicense), under only those claims of Intel
|
|
* patents that are infringed by the Original Intel Code, to make, use, sell,
|
|
* offer to sell, and import the Covered Code and derivative works thereof
|
|
* solely to the minimum extent necessary to exercise the above copyright
|
|
* license, and in no event shall the patent license extend to any additions
|
|
* to or modifications of the Original Intel Code. No other license or right
|
|
* is granted directly or by implication, estoppel or otherwise;
|
|
*
|
|
* The above copyright and patent license is granted only if the following
|
|
* conditions are met:
|
|
*
|
|
* 3. Conditions
|
|
*
|
|
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
|
|
* Redistribution of source code of any substantial portion of the Covered
|
|
* Code or modification with rights to further distribute source must include
|
|
* the above Copyright Notice, the above License, this list of Conditions,
|
|
* and the following Disclaimer and Export Compliance provision. In addition,
|
|
* Licensee must cause all Covered Code to which Licensee contributes to
|
|
* contain a file documenting the changes Licensee made to create that Covered
|
|
* Code and the date of any change. Licensee must include in that file the
|
|
* documentation of any changes made by any predecessor Licensee. Licensee
|
|
* must include a prominent statement that the modification is derived,
|
|
* directly or indirectly, from Original Intel Code.
|
|
*
|
|
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
|
|
* Redistribution of source code of any substantial portion of the Covered
|
|
* Code or modification without rights to further distribute source must
|
|
* include the following Disclaimer and Export Compliance provision in the
|
|
* documentation and/or other materials provided with distribution. In
|
|
* addition, Licensee may not authorize further sublicense of source of any
|
|
* portion of the Covered Code, and must include terms to the effect that the
|
|
* license from Licensee to its licensee is limited to the intellectual
|
|
* property embodied in the software Licensee provides to its licensee, and
|
|
* not to intellectual property embodied in modifications its licensee may
|
|
* make.
|
|
*
|
|
* 3.3. Redistribution of Executable. Redistribution in executable form of any
|
|
* substantial portion of the Covered Code or modification must reproduce the
|
|
* above Copyright Notice, and the following Disclaimer and Export Compliance
|
|
* provision in the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3.4. Intel retains all right, title, and interest in and to the Original
|
|
* Intel Code.
|
|
*
|
|
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
|
|
* Intel shall be used in advertising or otherwise to promote the sale, use or
|
|
* other dealings in products derived from or relating to the Covered Code
|
|
* without prior written authorization from Intel.
|
|
*
|
|
* 4. Disclaimer and Export Compliance
|
|
*
|
|
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
|
|
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
|
|
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
|
|
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
|
|
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
|
|
* PARTICULAR PURPOSE.
|
|
*
|
|
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
|
|
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
|
|
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
|
|
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
|
|
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
|
|
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
|
|
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
|
|
* LIMITED REMEDY.
|
|
*
|
|
* 4.3. Licensee shall not export, either directly or indirectly, any of this
|
|
* software or system incorporating such software without first obtaining any
|
|
* required license or other approval from the U. S. Department of Commerce or
|
|
* any other agency or department of the United States Government. In the
|
|
* event Licensee exports any such software from the United States or
|
|
* re-exports any such software from a foreign destination, Licensee shall
|
|
* ensure that the distribution and export/re-export of the software is in
|
|
* compliance with all laws, regulations, orders, or other restrictions of the
|
|
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
|
|
* any of its subsidiaries will export/re-export any technical data, process,
|
|
* software, or service, directly or indirectly, to any country for which the
|
|
* United States government or any agency thereof requires an export license,
|
|
* other governmental approval, or letter of assurance, without first obtaining
|
|
* such license, approval or letter.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#define __EXRESOLV_C__
|
|
|
|
#include "acpi.h"
|
|
#include "accommon.h"
|
|
#include "amlcode.h"
|
|
#include "acdispat.h"
|
|
#include "acinterp.h"
|
|
#include "acnamesp.h"
|
|
|
|
|
|
#define _COMPONENT ACPI_EXECUTER
|
|
ACPI_MODULE_NAME ("exresolv")
|
|
|
|
/* Local prototypes */
|
|
|
|
static ACPI_STATUS
|
|
AcpiExResolveObjectToValue (
|
|
ACPI_OPERAND_OBJECT **StackPtr,
|
|
ACPI_WALK_STATE *WalkState);
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExResolveToValue
|
|
*
|
|
* PARAMETERS: **StackPtr - Points to entry on ObjStack, which can
|
|
* be either an (ACPI_OPERAND_OBJECT *)
|
|
* or an ACPI_HANDLE.
|
|
* WalkState - Current method state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Convert Reference objects to values
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExResolveToValue (
|
|
ACPI_OPERAND_OBJECT **StackPtr,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR (ExResolveToValue, StackPtr);
|
|
|
|
|
|
if (!StackPtr || !*StackPtr)
|
|
{
|
|
ACPI_ERROR ((AE_INFO, "Internal - null pointer"));
|
|
return_ACPI_STATUS (AE_AML_NO_OPERAND);
|
|
}
|
|
|
|
/*
|
|
* The entity pointed to by the StackPtr can be either
|
|
* 1) A valid ACPI_OPERAND_OBJECT, or
|
|
* 2) A ACPI_NAMESPACE_NODE (NamedObj)
|
|
*/
|
|
if (ACPI_GET_DESCRIPTOR_TYPE (*StackPtr) == ACPI_DESC_TYPE_OPERAND)
|
|
{
|
|
Status = AcpiExResolveObjectToValue (StackPtr, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
if (!*StackPtr)
|
|
{
|
|
ACPI_ERROR ((AE_INFO, "Internal - null pointer"));
|
|
return_ACPI_STATUS (AE_AML_NO_OPERAND);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Object on the stack may have changed if AcpiExResolveObjectToValue()
|
|
* was called (i.e., we can't use an _else_ here.)
|
|
*/
|
|
if (ACPI_GET_DESCRIPTOR_TYPE (*StackPtr) == ACPI_DESC_TYPE_NAMED)
|
|
{
|
|
Status = AcpiExResolveNodeToValue (
|
|
ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE, StackPtr),
|
|
WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Resolved object %p\n", *StackPtr));
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExResolveObjectToValue
|
|
*
|
|
* PARAMETERS: StackPtr - Pointer to an internal object
|
|
* WalkState - Current method state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Retrieve the value from an internal object. The Reference type
|
|
* uses the associated AML opcode to determine the value.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiExResolveObjectToValue (
|
|
ACPI_OPERAND_OBJECT **StackPtr,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_OPERAND_OBJECT *StackDesc;
|
|
ACPI_OPERAND_OBJECT *ObjDesc = NULL;
|
|
UINT8 RefType;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExResolveObjectToValue);
|
|
|
|
|
|
StackDesc = *StackPtr;
|
|
|
|
/* This is an ACPI_OPERAND_OBJECT */
|
|
|
|
switch (StackDesc->Common.Type)
|
|
{
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
|
|
RefType = StackDesc->Reference.Class;
|
|
|
|
switch (RefType)
|
|
{
|
|
case ACPI_REFCLASS_LOCAL:
|
|
case ACPI_REFCLASS_ARG:
|
|
|
|
/*
|
|
* Get the local from the method's state info
|
|
* Note: this increments the local's object reference count
|
|
*/
|
|
Status = AcpiDsMethodDataGetValue (RefType,
|
|
StackDesc->Reference.Value, WalkState, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Arg/Local %X] ValueObj is %p\n",
|
|
StackDesc->Reference.Value, ObjDesc));
|
|
|
|
/*
|
|
* Now we can delete the original Reference Object and
|
|
* replace it with the resolved value
|
|
*/
|
|
AcpiUtRemoveReference (StackDesc);
|
|
*StackPtr = ObjDesc;
|
|
break;
|
|
|
|
|
|
case ACPI_REFCLASS_INDEX:
|
|
|
|
switch (StackDesc->Reference.TargetType)
|
|
{
|
|
case ACPI_TYPE_BUFFER_FIELD:
|
|
|
|
/* Just return - do not dereference */
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
|
|
/* If method call or CopyObject - do not dereference */
|
|
|
|
if ((WalkState->Opcode == AML_INT_METHODCALL_OP) ||
|
|
(WalkState->Opcode == AML_COPY_OP))
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* Otherwise, dereference the PackageIndex to a package element */
|
|
|
|
ObjDesc = *StackDesc->Reference.Where;
|
|
if (ObjDesc)
|
|
{
|
|
/*
|
|
* Valid object descriptor, copy pointer to return value
|
|
* (i.e., dereference the package index)
|
|
* Delete the ref object, increment the returned object
|
|
*/
|
|
AcpiUtRemoveReference (StackDesc);
|
|
AcpiUtAddReference (ObjDesc);
|
|
*StackPtr = ObjDesc;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* A NULL object descriptor means an uninitialized element of
|
|
* the package, can't dereference it
|
|
*/
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Attempt to dereference an Index to NULL package element Idx=%p",
|
|
StackDesc));
|
|
Status = AE_AML_UNINITIALIZED_ELEMENT;
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
/* Invalid reference object */
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Unknown TargetType 0x%X in Index/Reference object %p",
|
|
StackDesc->Reference.TargetType, StackDesc));
|
|
Status = AE_AML_INTERNAL;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
|
|
case ACPI_REFCLASS_REFOF:
|
|
case ACPI_REFCLASS_DEBUG:
|
|
case ACPI_REFCLASS_TABLE:
|
|
|
|
/* Just leave the object as-is, do not dereference */
|
|
|
|
break;
|
|
|
|
case ACPI_REFCLASS_NAME: /* Reference to a named object */
|
|
|
|
/* Dereference the name */
|
|
|
|
if ((StackDesc->Reference.Node->Type == ACPI_TYPE_DEVICE) ||
|
|
(StackDesc->Reference.Node->Type == ACPI_TYPE_THERMAL))
|
|
{
|
|
/* These node types do not have 'real' subobjects */
|
|
|
|
*StackPtr = (void *) StackDesc->Reference.Node;
|
|
}
|
|
else
|
|
{
|
|
/* Get the object pointed to by the namespace node */
|
|
|
|
*StackPtr = (StackDesc->Reference.Node)->Object;
|
|
AcpiUtAddReference (*StackPtr);
|
|
}
|
|
|
|
AcpiUtRemoveReference (StackDesc);
|
|
break;
|
|
|
|
default:
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Unknown Reference type 0x%X in %p", RefType, StackDesc));
|
|
Status = AE_AML_INTERNAL;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
Status = AcpiDsGetBufferArguments (StackDesc);
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
|
|
Status = AcpiDsGetPackageArguments (StackDesc);
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_BUFFER_FIELD:
|
|
case ACPI_TYPE_LOCAL_REGION_FIELD:
|
|
case ACPI_TYPE_LOCAL_BANK_FIELD:
|
|
case ACPI_TYPE_LOCAL_INDEX_FIELD:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "FieldRead SourceDesc=%p Type=%X\n",
|
|
StackDesc, StackDesc->Common.Type));
|
|
|
|
Status = AcpiExReadDataFromField (WalkState, StackDesc, &ObjDesc);
|
|
|
|
/* Remove a reference to the original operand, then override */
|
|
|
|
AcpiUtRemoveReference (*StackPtr);
|
|
*StackPtr = (void *) ObjDesc;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExResolveMultiple
|
|
*
|
|
* PARAMETERS: WalkState - Current state (contains AML opcode)
|
|
* Operand - Starting point for resolution
|
|
* ReturnType - Where the object type is returned
|
|
* ReturnDesc - Where the resolved object is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Return the base object and type. Traverse a reference list if
|
|
* necessary to get to the base object.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExResolveMultiple (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_OPERAND_OBJECT *Operand,
|
|
ACPI_OBJECT_TYPE *ReturnType,
|
|
ACPI_OPERAND_OBJECT **ReturnDesc)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc = (void *) Operand;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_OBJECT_TYPE Type;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (AcpiExResolveMultiple);
|
|
|
|
|
|
/* Operand can be either a namespace node or an operand descriptor */
|
|
|
|
switch (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc))
|
|
{
|
|
case ACPI_DESC_TYPE_OPERAND:
|
|
Type = ObjDesc->Common.Type;
|
|
break;
|
|
|
|
case ACPI_DESC_TYPE_NAMED:
|
|
Type = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Type;
|
|
ObjDesc = AcpiNsGetAttachedObject ((ACPI_NAMESPACE_NODE *) ObjDesc);
|
|
|
|
/* If we had an Alias node, use the attached object for type info */
|
|
|
|
if (Type == ACPI_TYPE_LOCAL_ALIAS)
|
|
{
|
|
Type = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Type;
|
|
ObjDesc = AcpiNsGetAttachedObject ((ACPI_NAMESPACE_NODE *) ObjDesc);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/* If type is anything other than a reference, we are done */
|
|
|
|
if (Type != ACPI_TYPE_LOCAL_REFERENCE)
|
|
{
|
|
goto Exit;
|
|
}
|
|
|
|
/*
|
|
* For reference objects created via the RefOf, Index, or Load/LoadTable
|
|
* operators, we need to get to the base object (as per the ACPI
|
|
* specification of the ObjectType and SizeOf operators). This means
|
|
* traversing the list of possibly many nested references.
|
|
*/
|
|
while (ObjDesc->Common.Type == ACPI_TYPE_LOCAL_REFERENCE)
|
|
{
|
|
switch (ObjDesc->Reference.Class)
|
|
{
|
|
case ACPI_REFCLASS_REFOF:
|
|
case ACPI_REFCLASS_NAME:
|
|
|
|
/* Dereference the reference pointer */
|
|
|
|
if (ObjDesc->Reference.Class == ACPI_REFCLASS_REFOF)
|
|
{
|
|
Node = ObjDesc->Reference.Object;
|
|
}
|
|
else /* AML_INT_NAMEPATH_OP */
|
|
{
|
|
Node = ObjDesc->Reference.Node;
|
|
}
|
|
|
|
/* All "References" point to a NS node */
|
|
|
|
if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED)
|
|
{
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Not a namespace node %p [%s]",
|
|
Node, AcpiUtGetDescriptorName (Node)));
|
|
return_ACPI_STATUS (AE_AML_INTERNAL);
|
|
}
|
|
|
|
/* Get the attached object */
|
|
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (!ObjDesc)
|
|
{
|
|
/* No object, use the NS node type */
|
|
|
|
Type = AcpiNsGetType (Node);
|
|
goto Exit;
|
|
}
|
|
|
|
/* Check for circular references */
|
|
|
|
if (ObjDesc == Operand)
|
|
{
|
|
return_ACPI_STATUS (AE_AML_CIRCULAR_REFERENCE);
|
|
}
|
|
break;
|
|
|
|
|
|
case ACPI_REFCLASS_INDEX:
|
|
|
|
/* Get the type of this reference (index into another object) */
|
|
|
|
Type = ObjDesc->Reference.TargetType;
|
|
if (Type != ACPI_TYPE_PACKAGE)
|
|
{
|
|
goto Exit;
|
|
}
|
|
|
|
/*
|
|
* The main object is a package, we want to get the type
|
|
* of the individual package element that is referenced by
|
|
* the index.
|
|
*
|
|
* This could of course in turn be another reference object.
|
|
*/
|
|
ObjDesc = *(ObjDesc->Reference.Where);
|
|
if (!ObjDesc)
|
|
{
|
|
/* NULL package elements are allowed */
|
|
|
|
Type = 0; /* Uninitialized */
|
|
goto Exit;
|
|
}
|
|
break;
|
|
|
|
|
|
case ACPI_REFCLASS_TABLE:
|
|
|
|
Type = ACPI_TYPE_DDB_HANDLE;
|
|
goto Exit;
|
|
|
|
|
|
case ACPI_REFCLASS_LOCAL:
|
|
case ACPI_REFCLASS_ARG:
|
|
|
|
if (ReturnDesc)
|
|
{
|
|
Status = AcpiDsMethodDataGetValue (ObjDesc->Reference.Class,
|
|
ObjDesc->Reference.Value, WalkState, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
}
|
|
else
|
|
{
|
|
Status = AcpiDsMethodDataGetNode (ObjDesc->Reference.Class,
|
|
ObjDesc->Reference.Value, WalkState, &Node);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (!ObjDesc)
|
|
{
|
|
Type = ACPI_TYPE_ANY;
|
|
goto Exit;
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
case ACPI_REFCLASS_DEBUG:
|
|
|
|
/* The Debug Object is of type "DebugObject" */
|
|
|
|
Type = ACPI_TYPE_DEBUG_OBJECT;
|
|
goto Exit;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Unknown Reference Class 0x%2.2X", ObjDesc->Reference.Class));
|
|
return_ACPI_STATUS (AE_AML_INTERNAL);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Now we are guaranteed to have an object that has not been created
|
|
* via the RefOf or Index operators.
|
|
*/
|
|
Type = ObjDesc->Common.Type;
|
|
|
|
|
|
Exit:
|
|
/* Convert internal types to external types */
|
|
|
|
switch (Type)
|
|
{
|
|
case ACPI_TYPE_LOCAL_REGION_FIELD:
|
|
case ACPI_TYPE_LOCAL_BANK_FIELD:
|
|
case ACPI_TYPE_LOCAL_INDEX_FIELD:
|
|
|
|
Type = ACPI_TYPE_FIELD_UNIT;
|
|
break;
|
|
|
|
case ACPI_TYPE_LOCAL_SCOPE:
|
|
|
|
/* Per ACPI Specification, Scope is untyped */
|
|
|
|
Type = ACPI_TYPE_ANY;
|
|
break;
|
|
|
|
default:
|
|
/* No change to Type required */
|
|
break;
|
|
}
|
|
|
|
*ReturnType = Type;
|
|
if (ReturnDesc)
|
|
{
|
|
*ReturnDesc = ObjDesc;
|
|
}
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|