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 *

 * Module Name: exoparg6 - AML execution - opcodes with 6 arguments

 *

 *****************************************************************************/

 *

 * 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

 * 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.

 *

 *****************************************************************************/

#include "accommon.h"

#include "acinterp.h"

#include "acparser.h"

#include "amlcode.h"

        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.

!*/

AcpiExDoMatch (

    UINT32                  MatchOp,

    ACPI_OPERAND_OBJECT     *PackageObj,

    ACPI_OPERAND_OBJECT     *MatchObj);

 *

 * FUNCTION:    AcpiExDoMatch

 *

 * PARAMETERS:  MatchOp         - The AML match operand

 *              PackageObj      - Object from the target package

 *              MatchObj        - Object to be matched

 *

 * RETURN:      TRUE if the match is successful, FALSE otherwise

 *

 * DESCRIPTION: Implements the low-level match for the ASL Match operator.

 *              Package elements will be implicitly converted to the type of

 *              the match object (Integer/Buffer/String).

 *

 ******************************************************************************/

AcpiExDoMatch (

    UINT32                  MatchOp,

    ACPI_OPERAND_OBJECT     *PackageObj,

    ACPI_OPERAND_OBJECT     *MatchObj)

{

    BOOLEAN                 LogicalResult = TRUE;

    ACPI_STATUS             Status;

     * Note: Since the PackageObj/MatchObj ordering is opposite to that of

     * the standard logical operators, we have to reverse them when we call

     * DoLogicalOp in order to make the implicit conversion rules work

     * correctly. However, this means we have to flip the entire equation

     * also. A bit ugly perhaps, but overall, better than fussing the

     * parameters around at runtime, over and over again.

     *

     * Below, P[i] refers to the package element, M refers to the Match object.

     */

    switch (MatchOp)

    {

    case MATCH_MTR:

         * True if equal: (P[i] == M)

         * Change to:     (M == P[i])

         */

        Status = AcpiExDoLogicalOp (AML_LEQUAL_OP, MatchObj, PackageObj,

                    &LogicalResult);

        if (ACPI_FAILURE (Status))

        {

            return (FALSE);

        }

        break;

         * True if less than or equal: (P[i] <= M) (P[i] NotGreater than M)

         * Change to:                  (M >= P[i]) (M NotLess than P[i])

         */

        Status = AcpiExDoLogicalOp (AML_LLESS_OP, MatchObj, PackageObj,

                    &LogicalResult);

        if (ACPI_FAILURE (Status))

        {

            return (FALSE);

        }

        LogicalResult = (BOOLEAN) !LogicalResult;

        break;

         * True if less than: (P[i] < M)

         * Change to:         (M > P[i])

         */

        Status = AcpiExDoLogicalOp (AML_LGREATER_OP, MatchObj, PackageObj,

                    &LogicalResult);

        if (ACPI_FAILURE (Status))

        {

            return (FALSE);

        }

        break;

         * True if greater than or equal: (P[i] >= M) (P[i] NotLess than M)

         * Change to:                     (M <= P[i]) (M NotGreater than P[i])

         */

        Status = AcpiExDoLogicalOp (AML_LGREATER_OP, MatchObj, PackageObj,

                    &LogicalResult);

        if (ACPI_FAILURE (Status))

        {

            return (FALSE);

        }

        LogicalResult = (BOOLEAN)!LogicalResult;

        break;

         * True if greater than: (P[i] > M)

         * Change to:            (M < P[i])

         */

        Status = AcpiExDoLogicalOp (AML_LLESS_OP, MatchObj, PackageObj,

                    &LogicalResult);

        if (ACPI_FAILURE (Status))

        {

            return (FALSE);

        }

        break;

    }

}

 *

 * FUNCTION:    AcpiExOpcode_6A_0T_1R

 *

 * PARAMETERS:  WalkState           - Current walk state

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value

 *

 ******************************************************************************/

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;

    UINT64                  Index;

    ACPI_OPERAND_OBJECT     *ThisElement;

        AcpiPsGetOpcodeName (WalkState->Opcode));

    {

    case AML_MATCH_OP:

        /*

         * Match (SearchPkg[0], MatchOp1[1], MatchObj1[2],

         *                      MatchOp2[3], MatchObj2[4], StartIndex[5])

         */

            (Operand[3]->Integer.Value > MAX_MATCH_OPERATOR))

        {

            ACPI_ERROR ((AE_INFO, "Match operator out of range"));

            Status = AE_AML_OPERAND_VALUE;

            goto Cleanup;

        }

        if (Index >= Operand[0]->Package.Count)

        {

            ACPI_ERROR ((AE_INFO,

                "Index (0x%8.8X%8.8X) beyond package end (0x%X)",

                ACPI_FORMAT_UINT64 (Index), Operand[0]->Package.Count));

            Status = AE_AML_PACKAGE_LIMIT;

            goto Cleanup;

        }

        /* Default return value is ACPI_UINT64_MAX if no match found */

        if (!ReturnDesc)

        {

            Status = AE_NO_MEMORY;

            goto Cleanup;

         * Examine each element until a match is found. Both match conditions

         * must be satisfied for a match to occur. 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

         * ACPI_UINT64_MAX (Ones) (its initial value) indicating that no

         * match was found.

         */

        for ( ; Index < Operand[0]->Package.Count; Index++)

        {

            /* Get the current package element */

            {

                continue;

            }

             * Both match conditions must be satisfied. Execution of a continue

             * (proceed to next iteration of enclosing for loop) signifies a

             * non-match.

             */

            if (!AcpiExDoMatch ((UINT32) Operand[1]->Integer.Value,

                                ThisElement, Operand[2]))

            {

                continue;

            }

                                ThisElement, Operand[4]))

            {

                continue;

            }

            break;

        }

        break;

        break;

            WalkState->Opcode));

        Status = AE_AML_BAD_OPCODE;

        goto Cleanup;

    }

    {

        AcpiUtRemoveReference (ReturnDesc);

    }

    {

        WalkState->ResultObj = ReturnDesc;

    }

}