/******************************************************************************
*
* Module Name: psxface - Parser external interfaces
* $Revision: 68 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2003, 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 __PSXFACE_C__
#include "acpi.h"
#include "acparser.h"
#include "acdispat.h"
#include "acinterp.h"
#include "acnamesp.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME ("psxface")
/*******************************************************************************
*
* FUNCTION: AcpiPsxExecute
*
* PARAMETERS: MethodNode - A method object containing both the AML
* address and length.
* **Params - List of parameters to pass to method,
* terminated by NULL. Params itself may be
* NULL if no parameters are being passed.
* **ReturnObjDesc - Return object from execution of the
* method.
*
* RETURN: Status
*
* DESCRIPTION: Execute a control method
*
******************************************************************************/
ACPI_STATUS
AcpiPsxExecute (
ACPI_NAMESPACE_NODE *MethodNode,
ACPI_OPERAND_OBJECT **Params,
ACPI_OPERAND_OBJECT **ReturnObjDesc)
{
ACPI_STATUS Status;
ACPI_OPERAND_OBJECT *ObjDesc;
UINT32 i;
ACPI_PARSE_OBJECT *Op;
ACPI_WALK_STATE *WalkState;
ACPI_FUNCTION_TRACE ("PsxExecute");
/* Validate the Node and get the attached object */
if (!MethodNode)
{
return_ACPI_STATUS (AE_NULL_ENTRY);
}
ObjDesc = AcpiNsGetAttachedObject (MethodNode);
if (!ObjDesc)
{
return_ACPI_STATUS (AE_NULL_OBJECT);
}
/* Init for new method, wait on concurrency semaphore */
Status = AcpiDsBeginMethodExecution (MethodNode, ObjDesc, NULL);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
if (Params)
{
/*
* The caller "owns" the parameters, so give each one an extra
* reference
*/
for (i = 0; Params[i]; i++)
{
AcpiUtAddReference (Params[i]);
}
}
/*
* 1) Perform the first pass parse of the method to enter any
* named objects that it creates into the namespace
*/
ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
"**** Begin Method Parse **** Entry=%p obj=%p\n",
MethodNode, ObjDesc));
/* Create and init a Root Node */
Op = AcpiPsCreateScopeOp ();
if (!Op)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* Get a new OwnerId for objects created by this method. Namespace
* objects (such as Operation Regions) can be created during the
* first pass parse.
*/
ObjDesc->Method.OwningId = AcpiUtAllocateOwnerId (ACPI_OWNER_TYPE_METHOD);
/* Create and initialize a new walk state */
WalkState = AcpiDsCreateWalkState (ObjDesc->Method.OwningId,
NULL, NULL, NULL);
if (!WalkState)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
Status = AcpiDsInitAmlWalk (WalkState, Op, MethodNode, ObjDesc->Method.AmlStart,
ObjDesc->Method.AmlLength, NULL, NULL, 1);
if (ACPI_FAILURE (Status))
{
AcpiDsDeleteWalkState (WalkState);
return_ACPI_STATUS (Status);
}
/* Parse the AML */
Status = AcpiPsParseAml (WalkState);
AcpiPsDeleteParseTree (Op);
/*
* 2) Execute the method. Performs second pass parse simultaneously
*/
ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
"**** Begin Method Execution **** Entry=%p obj=%p\n",
MethodNode, ObjDesc));
/* Create and init a Root Node */
Op = AcpiPsCreateScopeOp ();
if (!Op)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* Init new op with the method name and pointer back to the NS node */
AcpiPsSetName (Op, MethodNode->Name.Integer);
Op->Common.Node = MethodNode;
/* Create and initialize a new walk state */
WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
if (!WalkState)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
Status = AcpiDsInitAmlWalk (WalkState, Op, MethodNode, ObjDesc->Method.AmlStart,
ObjDesc->Method.AmlLength, Params, ReturnObjDesc, 3);
if (ACPI_FAILURE (Status))
{
AcpiDsDeleteWalkState (WalkState);
return_ACPI_STATUS (Status);
}
/*
* The walk of the parse tree is where we actually execute the method
*/
Status = AcpiPsParseAml (WalkState);
AcpiPsDeleteParseTree (Op);
if (Params)
{
/* Take away the extra reference that we gave the parameters above */
for (i = 0; Params[i]; i++)
{
/* Ignore errors, just do them all */
(void) AcpiUtUpdateObjectReference (Params[i], REF_DECREMENT);
}
}
/*
* If the method has returned an object, signal this to the caller with
* a control exception code
*/
if (*ReturnObjDesc)
{
ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n",
*ReturnObjDesc));
ACPI_DUMP_STACK_ENTRY (*ReturnObjDesc);
Status = AE_CTRL_RETURN_VALUE;
}
return_ACPI_STATUS (Status);
}
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