/******************************************************************************
*
* Module Name: exoparg6 - AML execution - opcodes with 6 arguments
* $Revision: 12 $
*
*****************************************************************************/
/******************************************************************************
*
* 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 __EXOPARG6_C__
#include "acpi.h"
#include "acinterp.h"
#include "acparser.h"
#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME ("exoparg6")
/*!
* Naming convention for AML interpreter execution routines.
*
* The routines that begin execution of AML opcodes are named with a common
* convention based upon the number of arguments, the number of target operands,
* and whether or not a value is returned:
*
* AcpiExOpcode_xA_yT_zR
*
* Where:
*
* xA - ARGUMENTS: The number of arguments (input operands) that are
* required for this opcode type (1 through 6 args).
* yT - TARGETS: The number of targets (output operands) that are required
* for this opcode type (0, 1, or 2 targets).
* zR - RETURN VALUE: Indicates whether this opcode type returns a value
* as the function return (0 or 1).
*
* The AcpiExOpcode* functions are called via the Dispatcher component with
* fully resolved operands.
!*/
/*******************************************************************************
*
* FUNCTION: AcpiExDoMatch
*
* PARAMETERS: MatchOp - The AML match operand
* PackageValue - Value from the target package
* MatchValue - Value to be matched
*
* RETURN: TRUE if the match is successful, FALSE otherwise
*
* DESCRIPTION: Implements the low-level match for the ASL Match operator
*
******************************************************************************/
BOOLEAN
AcpiExDoMatch (
UINT32 MatchOp,
ACPI_INTEGER PackageValue,
ACPI_INTEGER MatchValue)
{
switch (MatchOp)
{
case MATCH_MTR: /* always true */
break;
case MATCH_MEQ: /* true if equal */
if (PackageValue != MatchValue)
{
return (FALSE);
}
break;
case MATCH_MLE: /* true if less than or equal */
if (PackageValue > MatchValue)
{
return (FALSE);
}
break;
case MATCH_MLT: /* true if less than */
if (PackageValue >= MatchValue)
{
return (FALSE);
}
break;
case MATCH_MGE: /* true if greater than or equal */
if (PackageValue < MatchValue)
{
return (FALSE);
}
break;
case MATCH_MGT: /* true if greater than */
if (PackageValue <= MatchValue)
{
return (FALSE);
}
break;
default: /* undefined */
return (FALSE);
}
return TRUE;
}
/*******************************************************************************
*
* FUNCTION: AcpiExOpcode_6A_0T_1R
*
* PARAMETERS: WalkState - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value
*
******************************************************************************/
ACPI_STATUS
AcpiExOpcode_6A_0T_1R (
ACPI_WALK_STATE *WalkState)
{
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
ACPI_STATUS Status = AE_OK;
UINT32 Index;
ACPI_OPERAND_OBJECT *ThisElement;
ACPI_FUNCTION_TRACE_STR ("ExOpcode_6A_0T_1R", AcpiPsGetOpcodeName (WalkState->Opcode));
switch (WalkState->Opcode)
{
case AML_MATCH_OP:
/*
* Match (SearchPackage[0], MatchOp1[1], MatchObject1[2],
* MatchOp2[3], MatchObject2[4], StartIndex[5])
*/
/* Validate match comparison sub-opcodes */
if ((Operand[1]->Integer.Value > MAX_MATCH_OPERATOR) ||
(Operand[3]->Integer.Value > MAX_MATCH_OPERATOR))
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "operation encoding out of range\n"));
Status = AE_AML_OPERAND_VALUE;
goto Cleanup;
}
Index = (UINT32) Operand[5]->Integer.Value;
if (Index >= (UINT32) Operand[0]->Package.Count)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index beyond package end\n"));
Status = AE_AML_PACKAGE_LIMIT;
goto Cleanup;
}
ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
if (!ReturnDesc)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
/* Default return value if no match found */
ReturnDesc->Integer.Value = ACPI_INTEGER_MAX;
/*
* Examine each element until a match is found. Within the loop,
* "continue" signifies that the current element does not match
* and the next should be examined.
*
* Upon finding a match, the loop will terminate via "break" at
* the bottom. If it terminates "normally", MatchValue will be -1
* (its initial value) indicating that no match was found. When
* returned as a Number, this will produce the Ones value as specified.
*/
for ( ; Index < Operand[0]->Package.Count; Index++)
{
ThisElement = Operand[0]->Package.Elements[Index];
/*
* Treat any NULL or non-numeric elements as non-matching.
*/
if (!ThisElement ||
ACPI_GET_OBJECT_TYPE (ThisElement) != ACPI_TYPE_INTEGER)
{
continue;
}
/*
* "continue" (proceed to next iteration of enclosing
* "for" loop) signifies a non-match.
*/
if (!AcpiExDoMatch ((UINT32) Operand[1]->Integer.Value,
ThisElement->Integer.Value, Operand[2]->Integer.Value))
{
continue;
}
if (!AcpiExDoMatch ((UINT32) Operand[3]->Integer.Value,
ThisElement->Integer.Value, Operand[4]->Integer.Value))
{
continue;
}
/* Match found: Index is the return value */
ReturnDesc->Integer.Value = Index;
break;
}
break;
case AML_LOAD_TABLE_OP:
Status = AcpiExLoadTableOp (WalkState, &ReturnDesc);
break;
default:
ACPI_REPORT_ERROR (("AcpiExOpcode_3A_0T_0R: Unknown opcode %X\n",
WalkState->Opcode));
Status = AE_AML_BAD_OPCODE;
goto Cleanup;
}
WalkState->ResultObj = ReturnDesc;
Cleanup:
/* Delete return object on error */
if (ACPI_FAILURE (Status))
{
AcpiUtRemoveReference (ReturnDesc);
}
return_ACPI_STATUS (Status);
}
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