/******************************************************************************
*
* Module Name: dsargs - Support for execution of dynamic arguments for static
* objects (regions, fields, buffer fields, etc.)
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2011, 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 __DSARGS_C__
#include "acpi.h"
#include "accommon.h"
#include "acparser.h"
#include "amlcode.h"
#include "acdispat.h"
#include "acnamesp.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME ("dsargs")
/* Local prototypes */
static ACPI_STATUS
AcpiDsExecuteArguments (
ACPI_NAMESPACE_NODE *Node,
ACPI_NAMESPACE_NODE *ScopeNode,
UINT32 AmlLength,
UINT8 *AmlStart);
/*******************************************************************************
*
* FUNCTION: AcpiDsExecuteArguments
*
* PARAMETERS: Node - Object NS node
* ScopeNode - Parent NS node
* AmlLength - Length of executable AML
* AmlStart - Pointer to the AML
*
* RETURN: Status.
*
* DESCRIPTION: Late (deferred) execution of region or field arguments
*
******************************************************************************/
static ACPI_STATUS
AcpiDsExecuteArguments (
ACPI_NAMESPACE_NODE *Node,
ACPI_NAMESPACE_NODE *ScopeNode,
UINT32 AmlLength,
UINT8 *AmlStart)
{
ACPI_STATUS Status;
ACPI_PARSE_OBJECT *Op;
ACPI_WALK_STATE *WalkState;
ACPI_FUNCTION_TRACE (DsExecuteArguments);
/* Allocate a new parser op to be the root of the parsed tree */
Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
if (!Op)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* Save the Node for use in AcpiPsParseAml */
Op->Common.Node = ScopeNode;
/* Create and initialize a new parser state */
WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
if (!WalkState)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
AmlLength, NULL, ACPI_IMODE_LOAD_PASS1);
if (ACPI_FAILURE (Status))
{
AcpiDsDeleteWalkState (WalkState);
goto Cleanup;
}
/* Mark this parse as a deferred opcode */
WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP;
WalkState->DeferredNode = Node;
/* Pass1: Parse the entire declaration */
Status = AcpiPsParseAml (WalkState);
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
/* Get and init the Op created above */
Op->Common.Node = Node;
AcpiPsDeleteParseTree (Op);
/* Evaluate the deferred arguments */
Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
if (!Op)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
Op->Common.Node = ScopeNode;
/* Create and initialize a new parser state */
WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
if (!WalkState)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
/* Execute the opcode and arguments */
Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
AmlLength, NULL, ACPI_IMODE_EXECUTE);
if (ACPI_FAILURE (Status))
{
AcpiDsDeleteWalkState (WalkState);
goto Cleanup;
}
/* Mark this execution as a deferred opcode */
WalkState->DeferredNode = Node;
Status = AcpiPsParseAml (WalkState);
Cleanup:
AcpiPsDeleteParseTree (Op);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDsGetBufferFieldArguments
*
* PARAMETERS: ObjDesc - A valid BufferField object
*
* RETURN: Status.
*
* DESCRIPTION: Get BufferField Buffer and Index. This implements the late
* evaluation of these field attributes.
*
******************************************************************************/
ACPI_STATUS
AcpiDsGetBufferFieldArguments (
ACPI_OPERAND_OBJECT *ObjDesc)
{
ACPI_OPERAND_OBJECT *ExtraDesc;
ACPI_NAMESPACE_NODE *Node;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc);
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
{
return_ACPI_STATUS (AE_OK);
}
/* Get the AML pointer (method object) and BufferField node */
ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
Node = ObjDesc->BufferField.Node;
ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_BUFFER_FIELD,
Node, NULL));
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
AcpiUtGetNodeName (Node)));
/* Execute the AML code for the TermArg arguments */
Status = AcpiDsExecuteArguments (Node, Node->Parent,
ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDsGetBankFieldArguments
*
* PARAMETERS: ObjDesc - A valid BankField object
*
* RETURN: Status.
*
* DESCRIPTION: Get BankField BankValue. This implements the late
* evaluation of these field attributes.
*
******************************************************************************/
ACPI_STATUS
AcpiDsGetBankFieldArguments (
ACPI_OPERAND_OBJECT *ObjDesc)
{
ACPI_OPERAND_OBJECT *ExtraDesc;
ACPI_NAMESPACE_NODE *Node;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc);
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
{
return_ACPI_STATUS (AE_OK);
}
/* Get the AML pointer (method object) and BankField node */
ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
Node = ObjDesc->BankField.Node;
ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_LOCAL_BANK_FIELD,
Node, NULL));
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
AcpiUtGetNodeName (Node)));
/* Execute the AML code for the TermArg arguments */
Status = AcpiDsExecuteArguments (Node, Node->Parent,
ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDsGetBufferArguments
*
* PARAMETERS: ObjDesc - A valid Buffer object
*
* RETURN: Status.
*
* DESCRIPTION: Get Buffer length and initializer byte list. This implements
* the late evaluation of these attributes.
*
******************************************************************************/
ACPI_STATUS
AcpiDsGetBufferArguments (
ACPI_OPERAND_OBJECT *ObjDesc)
{
ACPI_NAMESPACE_NODE *Node;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc);
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
{
return_ACPI_STATUS (AE_OK);
}
/* Get the Buffer node */
Node = ObjDesc->Buffer.Node;
if (!Node)
{
ACPI_ERROR ((AE_INFO,
"No pointer back to namespace node in buffer object %p", ObjDesc));
return_ACPI_STATUS (AE_AML_INTERNAL);
}
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n"));
/* Execute the AML code for the TermArg arguments */
Status = AcpiDsExecuteArguments (Node, Node,
ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDsGetPackageArguments
*
* PARAMETERS: ObjDesc - A valid Package object
*
* RETURN: Status.
*
* DESCRIPTION: Get Package length and initializer byte list. This implements
* the late evaluation of these attributes.
*
******************************************************************************/
ACPI_STATUS
AcpiDsGetPackageArguments (
ACPI_OPERAND_OBJECT *ObjDesc)
{
ACPI_NAMESPACE_NODE *Node;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc);
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
{
return_ACPI_STATUS (AE_OK);
}
/* Get the Package node */
Node = ObjDesc->Package.Node;
if (!Node)
{
ACPI_ERROR ((AE_INFO,
"No pointer back to namespace node in package %p", ObjDesc));
return_ACPI_STATUS (AE_AML_INTERNAL);
}
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Arg Init\n"));
/* Execute the AML code for the TermArg arguments */
Status = AcpiDsExecuteArguments (Node, Node,
ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDsGetRegionArguments
*
* PARAMETERS: ObjDesc - A valid region object
*
* RETURN: Status.
*
* DESCRIPTION: Get region address and length. This implements the late
* evaluation of these region attributes.
*
******************************************************************************/
ACPI_STATUS
AcpiDsGetRegionArguments (
ACPI_OPERAND_OBJECT *ObjDesc)
{
ACPI_NAMESPACE_NODE *Node;
ACPI_STATUS Status;
ACPI_OPERAND_OBJECT *ExtraDesc;
ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);
if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
{
return_ACPI_STATUS (AE_OK);
}
ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
if (!ExtraDesc)
{
return_ACPI_STATUS (AE_NOT_EXIST);
}
/* Get the Region node */
Node = ObjDesc->Region.Node;
ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL));
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));
/* Execute the argument AML */
Status = AcpiDsExecuteArguments (Node, Node->Parent,
ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
return_ACPI_STATUS (Status);
}