dsobject.c revision 450d696485d078017a0c7d3eef7384ee79c9f467
/******************************************************************************
*
* Module Name: dsobject - Dispatcher object management routines
* $Revision: 124 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2005, 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
* 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
* 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
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* 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 "acnamesp.h"
#include "acinterp.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME ("dsobject")
static ACPI_STATUS
#ifndef ACPI_NO_METHOD_EXECUTION
/*******************************************************************************
*
* FUNCTION: AcpiDsBuildInternalObject
*
* PARAMETERS: WalkState - Current walk state
* 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!
*
******************************************************************************/
static ACPI_STATUS
{
ACPI_FUNCTION_TRACE ("DsBuildInternalObject");
*ObjDescPtr = NULL;
{
/*
* This is an named object reference. If this name was
* previously looked up in the namespace, it was stored in this op.
* Otherwise, go ahead and look it up now
*/
{
NULL,
if (ACPI_FAILURE (Status))
{
}
}
}
/* Create and init the internal ACPI object */
if (!ObjDesc)
{
}
&ObjDesc);
if (ACPI_FAILURE (Status))
{
}
*ObjDescPtr = ObjDesc;
}
/*******************************************************************************
*
* FUNCTION: AcpiDsBuildInternalBufferObj
*
* PARAMETERS: WalkState - Current walk state
* Op - Parser object to be translated
* BufferLength - Length of the buffer
* ObjDescPtr - Where the ACPI internal object is returned
*
* RETURN: Status
*
* DESCRIPTION: Translate a parser Op package object to the equivalent
* namespace object
*
******************************************************************************/
{
UINT32 ByteListLength = 0;
ACPI_FUNCTION_TRACE ("DsBuildInternalBufferObj");
ObjDesc = *ObjDescPtr;
if (ObjDesc)
{
/*
* We are evaluating a Named buffer object "Name (xxxx, Buffer)".
* The buffer object already exists (from the NS node)
*/
}
else
{
/* Create a new buffer object */
*ObjDescPtr = ObjDesc;
if (!ObjDesc)
{
}
}
/*
* Second arg is the buffer data (optional) ByteList can be either
* individual bytes or a string initializer. In either case, a
* ByteList appears in the AML.
*/
if (ByteList)
{
{
"Expecting bytelist, got AML opcode %X in op %p\n",
return (AE_TYPE);
}
}
/*
* The buffer length (number of bytes) will be the larger of:
* 1) The specified buffer length and
* 2) The length of the initializer byte list
*/
if (ByteListLength > BufferLength)
{
}
/* Allocate the buffer */
{
"Buffer defined with zero length in AML, creating\n"));
}
else
{
{
}
/* Initialize buffer from the ByteList (if present) */
if (ByteList)
{
}
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDsBuildInternalPackageObj
*
* PARAMETERS: WalkState - Current walk state
* Op - Parser object to be translated
* PackageLength - Number of elements in the package
* ObjDescPtr - Where the ACPI internal object is returned
*
* RETURN: Status
*
* DESCRIPTION: Translate a parser Op package object to the equivalent
* namespace object
*
******************************************************************************/
{
UINT32 i;
ACPI_FUNCTION_TRACE ("DsBuildInternalPackageObj");
/* Find the parent of a possibly nested package */
{
}
ObjDesc = *ObjDescPtr;
if (ObjDesc)
{
/*
* We are evaluating a Named package object "Name (xxxx, Package)".
* Get the existing package object from the NS node
*/
}
else
{
*ObjDescPtr = ObjDesc;
if (!ObjDesc)
{
}
}
/* Count the number of items in the package list */
PackageListLength = 0;
while (Arg)
{
}
/*
* The package length (number of elements) will be the greater
* of the specified length and the length of the initializer list
*/
if (PackageListLength > PackageLength)
{
}
/*
* Allocate the pointer array (array of pointers to the
* individual objects). Add an extra pointer slot so
* that the list is always null terminated.
*/
{
}
/*
* Now init the elements of the package
*/
i = 0;
while (Arg)
{
{
/* Object (package or buffer) is already built */
}
else
{
}
i++;
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDsCreateNode
*
* PARAMETERS: WalkState - Current walk state
* Node - NS Node to be initialized
* Op - Parser object to be translated
*
* RETURN: Status
*
* DESCRIPTION: Create the object to be associated with a namespace node
*
******************************************************************************/
{
/*
* Because of the execution pass through the non-control-method
* parts of the table, we can arrive here twice. Only init
* the named object node the first time through
*/
if (AcpiNsGetAttachedObject (Node))
{
}
{
/* No arguments, there is nothing to do */
}
/* Build an internal object for the argument(s) */
&ObjDesc);
if (ACPI_FAILURE (Status))
{
}
/* Re-type the object according to its argument */
/* Attach obj to node */
/* Remove local reference to the object */
}
#endif /* ACPI_NO_METHOD_EXECUTION */
/*******************************************************************************
*
* FUNCTION: AcpiDsInitObjectFromOp
*
* PARAMETERS: WalkState - Current walk state
* Op - Parser op used to init the internal object
* Opcode - AML opcode associated with the object
* RetObjDesc - 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.
*
******************************************************************************/
{
const ACPI_OPCODE_INFO *OpInfo;
ACPI_FUNCTION_TRACE ("DsInitObjectFromOp");
ObjDesc = *RetObjDesc;
{
/* Unknown opcode */
}
/* Perform per-object initialization */
switch (ACPI_GET_OBJECT_TYPE (ObjDesc))
{
case ACPI_TYPE_BUFFER:
/*
* Defer evaluation of Buffer TermArg operand
*/
break;
case ACPI_TYPE_PACKAGE:
/*
* Defer evaluation of Package TermArg operand
*/
break;
case ACPI_TYPE_INTEGER:
{
case AML_TYPE_CONSTANT:
/*
* Resolve AML Constants here - AND ONLY HERE!
* All constants are integers.
* We mark the integer with a flag that indicates that it started
* life as a constant -- so that stores to constants will perform
* as expected (noop). ZeroOp is used as a placeholder for optional
* target operands.
*/
switch (Opcode)
{
case AML_ZERO_OP:
break;
case AML_ONE_OP:
break;
case AML_ONES_OP:
/* Truncate value if we are executing from a 32-bit ACPI table */
#ifndef ACPI_NO_METHOD_EXECUTION
#endif
break;
case AML_REVISION_OP:
break;
default:
"Unknown constant opcode %X\n", Opcode));
break;
}
break;
case AML_TYPE_LITERAL:
#ifndef ACPI_NO_METHOD_EXECUTION
#endif
break;
default:
break;
}
break;
case ACPI_TYPE_STRING:
/*
* The string is contained in the ACPI table, don't ever try
* to delete it
*/
break;
case ACPI_TYPE_METHOD:
break;
{
case AML_TYPE_LOCAL_VARIABLE:
/* Split the opcode into a base opcode + offset */
#ifndef ACPI_NO_METHOD_EXECUTION
#endif
break;
case AML_TYPE_METHOD_ARGUMENT:
/* Split the opcode into a base opcode + offset */
#ifndef ACPI_NO_METHOD_EXECUTION
#endif
break;
default: /* Other literals, etc.. */
{
/* Node was saved in Op */
}
break;
}
break;
default:
break;
}
}