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freebsd-dev/sys/contrib/dev/acpica/dsobject.c

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Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
/******************************************************************************
*
* Module Name: dsobject - Dispatcher object management routines
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
* $Revision: 57 $
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
Update to the 20010125 ACPI CA snapshot.
2001-01-31 09:17:50 +00:00
* Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.
Update to the Intel 20001215 ACPI CA snapshot.
2000-12-21 06:56:46 +00:00
* All rights reserved.
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
*
* 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 __DSOBJECT_C__
#include "acpi.h"
#include "acparser.h"
#include "amlcode.h"
#include "acdispat.h"
#include "acinterp.h"
#include "acnamesp.h"
#define _COMPONENT DISPATCHER
MODULE_NAME ("dsobject")
/*******************************************************************************
*
* FUNCTION: AcpiDsInitOneObject
*
* PARAMETERS: ObjHandle - Node
* Level - Current nesting level
* Context - Points to a init info struct
* ReturnValue - Not used
*
* RETURN: Status
*
* DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object
* within the namespace.
*
* Currently, the only objects that require initialization are:
* 1) Methods
* 2) Op Regions
*
******************************************************************************/
ACPI_STATUS
AcpiDsInitOneObject (
ACPI_HANDLE ObjHandle,
UINT32 Level,
void *Context,
void **ReturnValue)
{
OBJECT_TYPE_INTERNAL Type;
ACPI_STATUS Status;
ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context;
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
UINT8 TableRevision;
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
Info->ObjectCount++;
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
TableRevision = Info->TableDesc->Pointer->Revision;
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
/*
* We are only interested in objects owned by the table that
* was just loaded
*/
if (((ACPI_NAMESPACE_NODE *) ObjHandle)->OwnerId !=
Info->TableDesc->TableId)
{
return (AE_OK);
}
/* And even then, we are only interested in a few object types */
Type = AcpiNsGetType (ObjHandle);
switch (Type)
{
case ACPI_TYPE_REGION:
AcpiDsInitializeRegion (ObjHandle);
Info->OpRegionCount++;
break;
case ACPI_TYPE_METHOD:
Info->MethodCount++;
Belated vendor update to the Intel ACPI CA 20010208 snapshot.
2001-03-05 02:15:19 +00:00
if (!(AcpiDbgLevel & TRACE_INIT))
{
DEBUG_PRINT_RAW (ACPI_OK, ("."));
}
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
/*
* Set the execution data width (32 or 64) based upon the
* revision number of the parent ACPI table.
*/
if (TableRevision == 1)
{
((ACPI_NAMESPACE_NODE *)ObjHandle)->Flags |= ANOBJ_DATA_WIDTH_32;
}
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
/*
* Always parse methods to detect errors, we may delete
* the parse tree below
*/
Status = AcpiDsParseMethod (ObjHandle);
/* TBD: [Errors] what do we do with an error? */
if (ACPI_FAILURE (Status))
{
DEBUG_PRINT (ACPI_ERROR,
("DsInitOneObject: Method %p [%4.4s] parse failed! %s\n",
ObjHandle, &((ACPI_NAMESPACE_NODE *)ObjHandle)->Name,
AcpiCmFormatException (Status)));
break;
}
/*
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
* Delete the parse tree. We simple re-parse the method
* for every execution since there isn't much overhead
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
*/
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
AcpiNsDeleteNamespaceSubtree (ObjHandle);
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
break;
default:
break;
}
/*
* We ignore errors from above, and always return OK, since
* we don't want to abort the walk on a single error.
*/
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiDsInitializeObjects
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Walk the entire namespace and perform any necessary
* initialization on the objects found therein
*
******************************************************************************/
ACPI_STATUS
AcpiDsInitializeObjects (
ACPI_TABLE_DESC *TableDesc,
ACPI_NAMESPACE_NODE *StartNode)
{
ACPI_STATUS Status;
ACPI_INIT_WALK_INFO Info;
FUNCTION_TRACE ("DsInitializeObjects");
DEBUG_PRINT (TRACE_DISPATCH,
("DsInitializeObjects: **** Starting initialization of namespace objects ****\n"));
DEBUG_PRINT_RAW (ACPI_OK, ("Parsing Methods:"));
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
Info.MethodCount = 0;
Info.OpRegionCount = 0;
Info.ObjectCount = 0;
Info.TableDesc = TableDesc;
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
/* Walk entire namespace from the supplied root */
Status = AcpiWalkNamespace (ACPI_TYPE_ANY, StartNode,
ACPI_UINT32_MAX, AcpiDsInitOneObject,
&Info, NULL);
if (ACPI_FAILURE (Status))
{
DEBUG_PRINT (ACPI_ERROR,
("DsInitializeObjects: WalkNamespace failed! %x\n", Status));
}
DEBUG_PRINT_RAW (ACPI_OK,
("\n%d Control Methods found and parsed (%d nodes total)\n",
Info.MethodCount, Info.ObjectCount));
DEBUG_PRINT (TRACE_DISPATCH,
("DsInitializeObjects: %d Control Methods found\n", Info.MethodCount));
DEBUG_PRINT (TRACE_DISPATCH,
("DsInitializeObjects: %d Op Regions found\n", Info.OpRegionCount));
return_ACPI_STATUS (AE_OK);
}
/*****************************************************************************
*
* FUNCTION: AcpiDsInitObjectFromOp
*
* PARAMETERS: Op - Parser op used to init the internal object
* Opcode - AML opcode associated with the object
* ObjDesc - Namespace object to be initialized
*
* RETURN: Status
*
* DESCRIPTION: Initialize a namespace object from a parser Op and its
* associated arguments. The namespace object is a more compact
* representation of the Op and its arguments.
*
****************************************************************************/
ACPI_STATUS
AcpiDsInitObjectFromOp (
ACPI_WALK_STATE *WalkState,
ACPI_PARSE_OBJECT *Op,
UINT16 Opcode,
ACPI_OPERAND_OBJECT **ObjDesc)
{
ACPI_STATUS Status;
ACPI_PARSE_OBJECT *Arg;
ACPI_PARSE2_OBJECT *ByteList;
ACPI_OPERAND_OBJECT *ArgDesc;
ACPI_OPCODE_INFO *OpInfo;
OpInfo = AcpiPsGetOpcodeInfo (Opcode);
if (ACPI_GET_OP_TYPE (OpInfo) != ACPI_OP_TYPE_OPCODE)
{
/* Unknown opcode */
return (AE_TYPE);
}
/* Get and prepare the first argument */
switch ((*ObjDesc)->Common.Type)
{
case ACPI_TYPE_BUFFER:
/* First arg is a number */
Update to the 20001201 ACPI CA snapshot.
2000-12-08 09:20:40 +00:00
AcpiDsCreateOperand (WalkState, Op->Value.Arg, 0);
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
ArgDesc = WalkState->Operands [WalkState->NumOperands - 1];
AcpiDsObjStackPop (1, WalkState);
/* Resolve the object (could be an arg or local) */
Status = AcpiAmlResolveToValue (&ArgDesc, WalkState);
if (ACPI_FAILURE (Status))
{
AcpiCmRemoveReference (ArgDesc);
return (Status);
}
/* We are expecting a number */
Update to the 20010125 ACPI CA snapshot.
2001-01-31 09:17:50 +00:00
if (ArgDesc->Common.Type != ACPI_TYPE_INTEGER)
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
{
DEBUG_PRINT (ACPI_ERROR,
("InitObject: Expecting number, got obj: %p type %X\n",
ArgDesc, ArgDesc->Common.Type));
AcpiCmRemoveReference (ArgDesc);
return (AE_TYPE);
}
/* Get the value, delete the internal object */
Update to the 20010125 ACPI CA snapshot.
2001-01-31 09:17:50 +00:00
(*ObjDesc)->Buffer.Length = (UINT32) ArgDesc->Integer.Value;
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
AcpiCmRemoveReference (ArgDesc);
/* Allocate the buffer */
if ((*ObjDesc)->Buffer.Length == 0)
{
(*ObjDesc)->Buffer.Pointer = NULL;
REPORT_WARNING (("Buffer created with zero length in AML\n"));
break;
}
else
{
(*ObjDesc)->Buffer.Pointer =
AcpiCmCallocate ((*ObjDesc)->Buffer.Length);
if (!(*ObjDesc)->Buffer.Pointer)
{
return (AE_NO_MEMORY);
}
}
/*
* Second arg is the buffer data (optional)
* ByteList can be either individual bytes or a
* string initializer!
*/
/* skip first arg */
Arg = Op->Value.Arg;
ByteList = (ACPI_PARSE2_OBJECT *) Arg->Next;
if (ByteList)
{
if (ByteList->Opcode != AML_BYTELIST_OP)
{
DEBUG_PRINT (ACPI_ERROR,
("InitObject: Expecting bytelist, got: %x\n",
ByteList));
return (AE_TYPE);
}
MEMCPY ((*ObjDesc)->Buffer.Pointer, ByteList->Data,
(*ObjDesc)->Buffer.Length);
}
break;
case ACPI_TYPE_PACKAGE:
/*
* When called, an internal package object has already
* been built and is pointed to by *ObjDesc.
* AcpiDsBuildInternalObject build another internal
* package object, so remove reference to the original
* so that it is deleted. Error checking is done
* within the remove reference function.
*/
AcpiCmRemoveReference(*ObjDesc);
Status = AcpiDsBuildInternalObject (WalkState, Op, ObjDesc);
break;
Update to the 20010125 ACPI CA snapshot.
2001-01-31 09:17:50 +00:00
case ACPI_TYPE_INTEGER:
(*ObjDesc)->Integer.Value = Op->Value.Integer;
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
break;
case ACPI_TYPE_STRING:
(*ObjDesc)->String.Pointer = Op->Value.String;
(*ObjDesc)->String.Length = STRLEN (Op->Value.String);
break;
case ACPI_TYPE_METHOD:
break;
case INTERNAL_TYPE_REFERENCE:
switch (ACPI_GET_OP_CLASS (OpInfo))
{
case OPTYPE_LOCAL_VARIABLE:
/* Split the opcode into a base opcode + offset */
(*ObjDesc)->Reference.OpCode = AML_LOCAL_OP;
(*ObjDesc)->Reference.Offset = Opcode - AML_LOCAL_OP;
break;
case OPTYPE_METHOD_ARGUMENT:
/* Split the opcode into a base opcode + offset */
(*ObjDesc)->Reference.OpCode = AML_ARG_OP;
(*ObjDesc)->Reference.Offset = Opcode - AML_ARG_OP;
break;
default: /* Constants, Literals, etc.. */
if (Op->Opcode == AML_NAMEPATH_OP)
{
/* Node was saved in Op */
(*ObjDesc)->Reference.Node = Op->Node;
}
(*ObjDesc)->Reference.OpCode = Opcode;
break;
}
break;
default:
DEBUG_PRINT (ACPI_ERROR,
("InitObject: Unimplemented data type: %x\n",
(*ObjDesc)->Common.Type));
break;
}
return (AE_OK);
}
/*****************************************************************************
*
* FUNCTION: AcpiDsBuildInternalSimpleObj
*
* PARAMETERS: Op - Parser object to be translated
* ObjDescPtr - Where the ACPI internal object is returned
*
* RETURN: Status
*
* DESCRIPTION: Translate a parser Op object to the equivalent namespace object
* Simple objects are any objects other than a package object!
*
****************************************************************************/
Update to the 20001115 Intel ACPI CA snapshot.
2000-12-01 09:36:25 +00:00
static ACPI_STATUS
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
AcpiDsBuildInternalSimpleObj (
ACPI_WALK_STATE *WalkState,
ACPI_PARSE_OBJECT *Op,
ACPI_OPERAND_OBJECT **ObjDescPtr)
{
ACPI_OPERAND_OBJECT *ObjDesc;
OBJECT_TYPE_INTERNAL Type;
ACPI_STATUS Status;
UINT32 Length;
char *Name;
FUNCTION_TRACE ("DsBuildInternalSimpleObj");
if (Op->Opcode == AML_NAMEPATH_OP)
{
/*
* This is an object reference. If The name was
* previously looked up in the NS, it is stored in this op.
* Otherwise, go ahead and look it up now
*/
if (!Op->Node)
{
Status = AcpiNsLookup (WalkState->ScopeInfo,
Op->Value.String, ACPI_TYPE_ANY,
IMODE_EXECUTE,
NS_SEARCH_PARENT | NS_DONT_OPEN_SCOPE,
NULL,
(ACPI_NAMESPACE_NODE **)&(Op->Node));
if (ACPI_FAILURE (Status))
{
if (Status == AE_NOT_FOUND)
{
Name = NULL;
AcpiNsExternalizeName (ACPI_UINT32_MAX, Op->Value.String, &Length, &Name);
if (Name)
{
Update to the 20010125 ACPI CA snapshot.
2001-01-31 09:17:50 +00:00
REPORT_WARNING (("Reference %s at AML %X not found\n",
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
Name, Op->AmlOffset));
AcpiCmFree (Name);
}
else
{
Update to the 20010125 ACPI CA snapshot.
2001-01-31 09:17:50 +00:00
REPORT_WARNING (("Reference %s at AML %X not found\n",
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
Op->Value.String, Op->AmlOffset));
}
*ObjDescPtr = NULL;
}
Update to the 20010125 ACPI CA snapshot.
2001-01-31 09:17:50 +00:00
else
{
return_ACPI_STATUS (Status);
}
Initial import of the Intel-maintained ACPI Component Architecture. This is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
2000-10-28 05:01:06 +00:00
}
}
/*
* The reference will be a Reference
* TBD: [Restructure] unless we really need a separate
* type of INTERNAL_TYPE_REFERENCE change
* AcpiDsMapOpcodeToDataType to handle this case
*/
Type = INTERNAL_TYPE_REFERENCE;
}
else
{
Type = AcpiDsMapOpcodeToDataType (Op->Opcode, NULL);
}
/* Create and init the internal ACPI object */
ObjDesc = AcpiCmCreateInternalObject (Type);
if (!ObjDesc)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
Status = AcpiDsInitObjectFromOp (WalkState, Op,
Op->Opcode, &ObjDesc);
if (ACPI_FAILURE (Status))
{
AcpiCmRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
*ObjDescPtr = ObjDesc;
return_ACPI_STATUS (AE_OK);
}
/*****************************************************************************
*
* FUNCTION: AcpiDsBuildInternalPackageObj
*
* PARAMETERS: Op - Parser object to be translated
* ObjDescPtr - Where the ACPI internal object is returned
*
* RETURN: Status
*
* DESCRIPTION: Translate a parser Op package object to the equivalent
* namespace object
*
****************************************************************************/
ACPI_STATUS
AcpiDsBuildInternalPackageObj (
ACPI_WALK_STATE *WalkState,
ACPI_PARSE_OBJECT *Op,
ACPI_OPERAND_OBJECT **ObjDescPtr)
{
ACPI_PARSE_OBJECT *Arg;
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_STATUS Status = AE_OK;
FUNCTION_TRACE ("DsBuildInternalPackageObj");
ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_PACKAGE);
if (!ObjDesc)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* The first argument must be the package length */
Arg = Op->Value.Arg;
ObjDesc->Package.Count = Arg->Value.Integer;
/*
* Allocate the array of pointers (ptrs to the
* individual objects) Add an extra pointer slot so
* that the list is always null terminated.
*/
ObjDesc->Package.Elements =
AcpiCmCallocate ((ObjDesc->Package.Count + 1) *
sizeof (void *));
if (!ObjDesc->Package.Elements)
{
/* Package vector allocation failure */
REPORT_ERROR (("DsBuildInternalPackageObj: Package vector allocation failure\n"));
AcpiCmDeleteObjectDesc (ObjDesc);
return_ACPI_STATUS (AE_NO_MEMORY);
}
ObjDesc->Package.NextElement = ObjDesc->Package.Elements;
/*
* Now init the elements of the package
*/
Arg = Arg->Next;
while (Arg)
{
if (Arg->Opcode == AML_PACKAGE_OP)
{
Status = AcpiDsBuildInternalPackageObj (WalkState, Arg,
ObjDesc->Package.NextElement);
}
else
{
Status = AcpiDsBuildInternalSimpleObj (WalkState, Arg,
ObjDesc->Package.NextElement);
}
ObjDesc->Package.NextElement++;
Arg = Arg->Next;
}
*ObjDescPtr = ObjDesc;
return_ACPI_STATUS (Status);
}
/*****************************************************************************
*
* FUNCTION: AcpiDsBuildInternalObject
*
* PARAMETERS: Op - Parser object to be translated
* ObjDescPtr - Where the ACPI internal object is returned
*
* RETURN: Status
*
* DESCRIPTION: Translate a parser Op object to the equivalent namespace
* object
*
****************************************************************************/
ACPI_STATUS
AcpiDsBuildInternalObject (
ACPI_WALK_STATE *WalkState,
ACPI_PARSE_OBJECT *Op,
ACPI_OPERAND_OBJECT **ObjDescPtr)
{
ACPI_STATUS Status;
if (Op->Opcode == AML_PACKAGE_OP)
{
Status = AcpiDsBuildInternalPackageObj (WalkState, Op,
ObjDescPtr);
}
else
{
Status = AcpiDsBuildInternalSimpleObj (WalkState, Op,
ObjDescPtr);
}
return (Status);
}
/*****************************************************************************
*
* FUNCTION: AcpiDsCreateNode
*
* PARAMETERS: Op - Parser object to be translated
* ObjDescPtr - Where the ACPI internal object is returned
*
* RETURN: Status
*
* DESCRIPTION:
*
****************************************************************************/
ACPI_STATUS
AcpiDsCreateNode (
ACPI_WALK_STATE *WalkState,
ACPI_NAMESPACE_NODE *Node,
ACPI_PARSE_OBJECT *Op)
{
ACPI_STATUS Status;
ACPI_OPERAND_OBJECT *ObjDesc;
FUNCTION_TRACE_PTR ("DsCreateNode", Op);
if (!Op->Value.Arg)
{
/* No arguments, there is nothing to do */
return_ACPI_STATUS (AE_OK);
}
/* Build an internal object for the argument(s) */
Status = AcpiDsBuildInternalObject (WalkState,
Op->Value.Arg, &ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Re-type the object according to it's argument */
Node->Type = ObjDesc->Common.Type;
/* Init obj */
Status = AcpiNsAttachObject ((ACPI_HANDLE) Node, ObjDesc,
(UINT8) Node->Type);
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
return_ACPI_STATUS (Status);
Cleanup:
AcpiCmRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
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