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      1 /******************************************************************************
      2  *
      3  * Name: acdispat.h - dispatcher (parser to interpreter interface)
      4  *
      5  *****************************************************************************/
      6 
      7 /******************************************************************************
      8  *
      9  * 1. Copyright Notice
     10  *
     11  * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
     12  * All rights reserved.
     13  *
     14  * 2. License
     15  *
     16  * 2.1. This is your license from Intel Corp. under its intellectual property
     17  * rights. You may have additional license terms from the party that provided
     18  * you this software, covering your right to use that party's intellectual
     19  * property rights.
     20  *
     21  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
     22  * copy of the source code appearing in this file ("Covered Code") an
     23  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
     24  * base code distributed originally by Intel ("Original Intel Code") to copy,
     25  * make derivatives, distribute, use and display any portion of the Covered
     26  * Code in any form, with the right to sublicense such rights; and
     27  *
     28  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
     29  * license (with the right to sublicense), under only those claims of Intel
     30  * patents that are infringed by the Original Intel Code, to make, use, sell,
     31  * offer to sell, and import the Covered Code and derivative works thereof
     32  * solely to the minimum extent necessary to exercise the above copyright
     33  * license, and in no event shall the patent license extend to any additions
     34  * to or modifications of the Original Intel Code. No other license or right
     35  * is granted directly or by implication, estoppel or otherwise;
     36  *
     37  * The above copyright and patent license is granted only if the following
     38  * conditions are met:
     39  *
     40  * 3. Conditions
     41  *
     42  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
     43  * Redistribution of source code of any substantial portion of the Covered
     44  * Code or modification with rights to further distribute source must include
     45  * the above Copyright Notice, the above License, this list of Conditions,
     46  * and the following Disclaimer and Export Compliance provision. In addition,
     47  * Licensee must cause all Covered Code to which Licensee contributes to
     48  * contain a file documenting the changes Licensee made to create that Covered
     49  * Code and the date of any change. Licensee must include in that file the
     50  * documentation of any changes made by any predecessor Licensee. Licensee
     51  * must include a prominent statement that the modification is derived,
     52  * directly or indirectly, from Original Intel Code.
     53  *
     54  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
     55  * Redistribution of source code of any substantial portion of the Covered
     56  * Code or modification without rights to further distribute source must
     57  * include the following Disclaimer and Export Compliance provision in the
     58  * documentation and/or other materials provided with distribution. In
     59  * addition, Licensee may not authorize further sublicense of source of any
     60  * portion of the Covered Code, and must include terms to the effect that the
     61  * license from Licensee to its licensee is limited to the intellectual
     62  * property embodied in the software Licensee provides to its licensee, and
     63  * not to intellectual property embodied in modifications its licensee may
     64  * make.
     65  *
     66  * 3.3. Redistribution of Executable. Redistribution in executable form of any
     67  * substantial portion of the Covered Code or modification must reproduce the
     68  * above Copyright Notice, and the following Disclaimer and Export Compliance
     69  * provision in the documentation and/or other materials provided with the
     70  * distribution.
     71  *
     72  * 3.4. Intel retains all right, title, and interest in and to the Original
     73  * Intel Code.
     74  *
     75  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
     76  * Intel shall be used in advertising or otherwise to promote the sale, use or
     77  * other dealings in products derived from or relating to the Covered Code
     78  * without prior written authorization from Intel.
     79  *
     80  * 4. Disclaimer and Export Compliance
     81  *
     82  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
     83  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
     84  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
     85  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
     86  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
     87  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
     88  * PARTICULAR PURPOSE.
     89  *
     90  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
     91  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
     92  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
     93  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
     94  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
     95  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
     96  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
     97  * LIMITED REMEDY.
     98  *
     99  * 4.3. Licensee shall not export, either directly or indirectly, any of this
    100  * software or system incorporating such software without first obtaining any
    101  * required license or other approval from the U. S. Department of Commerce or
    102  * any other agency or department of the United States Government. In the
    103  * event Licensee exports any such software from the United States or
    104  * re-exports any such software from a foreign destination, Licensee shall
    105  * ensure that the distribution and export/re-export of the software is in
    106  * compliance with all laws, regulations, orders, or other restrictions of the
    107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
    108  * any of its subsidiaries will export/re-export any technical data, process,
    109  * software, or service, directly or indirectly, to any country for which the
    110  * United States government or any agency thereof requires an export license,
    111  * other governmental approval, or letter of assurance, without first obtaining
    112  * such license, approval or letter.
    113  *
    114  *****************************************************************************
    115  *
    116  * Alternatively, you may choose to be licensed under the terms of the
    117  * following license:
    118  *
    119  * Redistribution and use in source and binary forms, with or without
    120  * modification, are permitted provided that the following conditions
    121  * are met:
    122  * 1. Redistributions of source code must retain the above copyright
    123  *    notice, this list of conditions, and the following disclaimer,
    124  *    without modification.
    125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    126  *    substantially similar to the "NO WARRANTY" disclaimer below
    127  *    ("Disclaimer") and any redistribution must be conditioned upon
    128  *    including a substantially similar Disclaimer requirement for further
    129  *    binary redistribution.
    130  * 3. Neither the names of the above-listed copyright holders nor the names
    131  *    of any contributors may be used to endorse or promote products derived
    132  *    from this software without specific prior written permission.
    133  *
    134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    145  *
    146  * Alternatively, you may choose to be licensed under the terms of the
    147  * GNU General Public License ("GPL") version 2 as published by the Free
    148  * Software Foundation.
    149  *
    150  *****************************************************************************/
    151 
    152 #ifndef _ACDISPAT_H_
    153 #define _ACDISPAT_H_
    154 
    155 
    156 #define NAMEOF_LOCAL_NTE    "__L0"
    157 #define NAMEOF_ARG_NTE      "__A0"
    158 
    159 
    160 /*
    161  * dsargs - execution of dynamic arguments for static objects
    162  */
    163 ACPI_STATUS
    164 AcpiDsGetBufferFieldArguments (
    165     ACPI_OPERAND_OBJECT     *ObjDesc);
    166 
    167 ACPI_STATUS
    168 AcpiDsGetBankFieldArguments (
    169     ACPI_OPERAND_OBJECT     *ObjDesc);
    170 
    171 ACPI_STATUS
    172 AcpiDsGetRegionArguments (
    173     ACPI_OPERAND_OBJECT     *RgnDesc);
    174 
    175 ACPI_STATUS
    176 AcpiDsGetBufferArguments (
    177     ACPI_OPERAND_OBJECT     *ObjDesc);
    178 
    179 ACPI_STATUS
    180 AcpiDsGetPackageArguments (
    181     ACPI_OPERAND_OBJECT     *ObjDesc);
    182 
    183 
    184 /*
    185  * dscontrol - support for execution control opcodes
    186  */
    187 ACPI_STATUS
    188 AcpiDsExecBeginControlOp (
    189     ACPI_WALK_STATE         *WalkState,
    190     ACPI_PARSE_OBJECT       *Op);
    191 
    192 ACPI_STATUS
    193 AcpiDsExecEndControlOp (
    194     ACPI_WALK_STATE         *WalkState,
    195     ACPI_PARSE_OBJECT       *Op);
    196 
    197 
    198 /*
    199  * dsopcode - support for late operand evaluation
    200  */
    201 ACPI_STATUS
    202 AcpiDsEvalBufferFieldOperands (
    203     ACPI_WALK_STATE         *WalkState,
    204     ACPI_PARSE_OBJECT       *Op);
    205 
    206 ACPI_STATUS
    207 AcpiDsEvalRegionOperands (
    208     ACPI_WALK_STATE         *WalkState,
    209     ACPI_PARSE_OBJECT       *Op);
    210 
    211 ACPI_STATUS
    212 AcpiDsEvalTableRegionOperands (
    213     ACPI_WALK_STATE         *WalkState,
    214     ACPI_PARSE_OBJECT       *Op);
    215 
    216 ACPI_STATUS
    217 AcpiDsEvalDataObjectOperands (
    218     ACPI_WALK_STATE         *WalkState,
    219     ACPI_PARSE_OBJECT       *Op,
    220     ACPI_OPERAND_OBJECT     *ObjDesc);
    221 
    222 ACPI_STATUS
    223 AcpiDsEvalBankFieldOperands (
    224     ACPI_WALK_STATE         *WalkState,
    225     ACPI_PARSE_OBJECT       *Op);
    226 
    227 ACPI_STATUS
    228 AcpiDsInitializeRegion (
    229     ACPI_HANDLE             ObjHandle);
    230 
    231 
    232 /*
    233  * dsexec - Parser/Interpreter interface, method execution callbacks
    234  */
    235 ACPI_STATUS
    236 AcpiDsGetPredicateValue (
    237     ACPI_WALK_STATE         *WalkState,
    238     ACPI_OPERAND_OBJECT     *ResultObj);
    239 
    240 ACPI_STATUS
    241 AcpiDsExecBeginOp (
    242     ACPI_WALK_STATE         *WalkState,
    243     ACPI_PARSE_OBJECT       **OutOp);
    244 
    245 ACPI_STATUS
    246 AcpiDsExecEndOp (
    247     ACPI_WALK_STATE         *State);
    248 
    249 
    250 /*
    251  * dsfield - Parser/Interpreter interface for AML fields
    252  */
    253 ACPI_STATUS
    254 AcpiDsCreateField (
    255     ACPI_PARSE_OBJECT       *Op,
    256     ACPI_NAMESPACE_NODE     *RegionNode,
    257     ACPI_WALK_STATE         *WalkState);
    258 
    259 ACPI_STATUS
    260 AcpiDsCreateBankField (
    261     ACPI_PARSE_OBJECT       *Op,
    262     ACPI_NAMESPACE_NODE     *RegionNode,
    263     ACPI_WALK_STATE         *WalkState);
    264 
    265 ACPI_STATUS
    266 AcpiDsCreateIndexField (
    267     ACPI_PARSE_OBJECT       *Op,
    268     ACPI_NAMESPACE_NODE     *RegionNode,
    269     ACPI_WALK_STATE         *WalkState);
    270 
    271 ACPI_STATUS
    272 AcpiDsCreateBufferField (
    273     ACPI_PARSE_OBJECT       *Op,
    274     ACPI_WALK_STATE         *WalkState);
    275 
    276 ACPI_STATUS
    277 AcpiDsInitFieldObjects (
    278     ACPI_PARSE_OBJECT       *Op,
    279     ACPI_WALK_STATE         *WalkState);
    280 
    281 
    282 /*
    283  * dsload - Parser/Interpreter interface
    284  */
    285 ACPI_STATUS
    286 AcpiDsInitCallbacks (
    287     ACPI_WALK_STATE         *WalkState,
    288     UINT32                  PassNumber);
    289 
    290 /* dsload - pass 1 namespace load callbacks */
    291 
    292 ACPI_STATUS
    293 AcpiDsLoad1BeginOp (
    294     ACPI_WALK_STATE         *WalkState,
    295     ACPI_PARSE_OBJECT       **OutOp);
    296 
    297 ACPI_STATUS
    298 AcpiDsLoad1EndOp (
    299     ACPI_WALK_STATE         *WalkState);
    300 
    301 
    302 /* dsload - pass 2 namespace load callbacks */
    303 
    304 ACPI_STATUS
    305 AcpiDsLoad2BeginOp (
    306     ACPI_WALK_STATE         *WalkState,
    307     ACPI_PARSE_OBJECT       **OutOp);
    308 
    309 ACPI_STATUS
    310 AcpiDsLoad2EndOp (
    311     ACPI_WALK_STATE         *WalkState);
    312 
    313 
    314 /*
    315  * dsmthdat - method data (locals/args)
    316  */
    317 ACPI_STATUS
    318 AcpiDsStoreObjectToLocal (
    319     UINT8                   Type,
    320     UINT32                  Index,
    321     ACPI_OPERAND_OBJECT     *SrcDesc,
    322     ACPI_WALK_STATE         *WalkState);
    323 
    324 ACPI_STATUS
    325 AcpiDsMethodDataGetEntry (
    326     UINT16                  Opcode,
    327     UINT32                  Index,
    328     ACPI_WALK_STATE         *WalkState,
    329     ACPI_OPERAND_OBJECT     ***Node);
    330 
    331 void
    332 AcpiDsMethodDataDeleteAll (
    333     ACPI_WALK_STATE         *WalkState);
    334 
    335 BOOLEAN
    336 AcpiDsIsMethodValue (
    337     ACPI_OPERAND_OBJECT     *ObjDesc);
    338 
    339 ACPI_STATUS
    340 AcpiDsMethodDataGetValue (
    341     UINT8                   Type,
    342     UINT32                  Index,
    343     ACPI_WALK_STATE         *WalkState,
    344     ACPI_OPERAND_OBJECT     **DestDesc);
    345 
    346 ACPI_STATUS
    347 AcpiDsMethodDataInitArgs (
    348     ACPI_OPERAND_OBJECT     **Params,
    349     UINT32                  MaxParamCount,
    350     ACPI_WALK_STATE         *WalkState);
    351 
    352 ACPI_STATUS
    353 AcpiDsMethodDataGetNode (
    354     UINT8                   Type,
    355     UINT32                  Index,
    356     ACPI_WALK_STATE         *WalkState,
    357     ACPI_NAMESPACE_NODE     **Node);
    358 
    359 void
    360 AcpiDsMethodDataInit (
    361     ACPI_WALK_STATE         *WalkState);
    362 
    363 
    364 /*
    365  * dsmethod - Parser/Interpreter interface - control method parsing
    366  */
    367 ACPI_STATUS
    368 AcpiDsAutoSerializeMethod (
    369     ACPI_NAMESPACE_NODE     *Node,
    370     ACPI_OPERAND_OBJECT     *ObjDesc);
    371 
    372 ACPI_STATUS
    373 AcpiDsCallControlMethod (
    374     ACPI_THREAD_STATE       *Thread,
    375     ACPI_WALK_STATE         *WalkState,
    376     ACPI_PARSE_OBJECT       *Op);
    377 
    378 ACPI_STATUS
    379 AcpiDsRestartControlMethod (
    380     ACPI_WALK_STATE         *WalkState,
    381     ACPI_OPERAND_OBJECT     *ReturnDesc);
    382 
    383 void
    384 AcpiDsTerminateControlMethod (
    385     ACPI_OPERAND_OBJECT     *MethodDesc,
    386     ACPI_WALK_STATE         *WalkState);
    387 
    388 ACPI_STATUS
    389 AcpiDsBeginMethodExecution (
    390     ACPI_NAMESPACE_NODE     *MethodNode,
    391     ACPI_OPERAND_OBJECT     *ObjDesc,
    392     ACPI_WALK_STATE         *WalkState);
    393 
    394 ACPI_STATUS
    395 AcpiDsMethodError (
    396     ACPI_STATUS             Status,
    397     ACPI_WALK_STATE         *WalkState);
    398 
    399 /*
    400  * dsinit
    401  */
    402 ACPI_STATUS
    403 AcpiDsInitializeObjects (
    404     UINT32                  TableIndex,
    405     ACPI_NAMESPACE_NODE     *StartNode);
    406 
    407 
    408 /*
    409  * dsobject - Parser/Interpreter interface - object initialization and conversion
    410  */
    411 ACPI_STATUS
    412 AcpiDsBuildInternalObject (
    413     ACPI_WALK_STATE         *WalkState,
    414     ACPI_PARSE_OBJECT       *Op,
    415     ACPI_OPERAND_OBJECT     **ObjDescPtr);
    416 
    417 ACPI_STATUS
    418 AcpiDsBuildInternalBufferObj (
    419     ACPI_WALK_STATE         *WalkState,
    420     ACPI_PARSE_OBJECT       *Op,
    421     UINT32                  BufferLength,
    422     ACPI_OPERAND_OBJECT     **ObjDescPtr);
    423 
    424 ACPI_STATUS
    425 AcpiDsBuildInternalPackageObj (
    426     ACPI_WALK_STATE         *WalkState,
    427     ACPI_PARSE_OBJECT       *op,
    428     UINT32                  PackageLength,
    429     ACPI_OPERAND_OBJECT     **ObjDesc);
    430 
    431 ACPI_STATUS
    432 AcpiDsInitObjectFromOp (
    433     ACPI_WALK_STATE         *WalkState,
    434     ACPI_PARSE_OBJECT       *Op,
    435     UINT16                  Opcode,
    436     ACPI_OPERAND_OBJECT     **ObjDesc);
    437 
    438 ACPI_STATUS
    439 AcpiDsCreateNode (
    440     ACPI_WALK_STATE         *WalkState,
    441     ACPI_NAMESPACE_NODE     *Node,
    442     ACPI_PARSE_OBJECT       *Op);
    443 
    444 
    445 /*
    446  * dspkginit - Package object initialization
    447  */
    448 ACPI_STATUS
    449 AcpiDsInitPackageElement (
    450     UINT8                   ObjectType,
    451     ACPI_OPERAND_OBJECT     *SourceObject,
    452     ACPI_GENERIC_STATE      *State,
    453     void                    *Context);
    454 
    455 
    456 /*
    457  * dsutils - Parser/Interpreter interface utility routines
    458  */
    459 void
    460 AcpiDsClearImplicitReturn (
    461     ACPI_WALK_STATE         *WalkState);
    462 
    463 BOOLEAN
    464 AcpiDsDoImplicitReturn (
    465     ACPI_OPERAND_OBJECT     *ReturnDesc,
    466     ACPI_WALK_STATE         *WalkState,
    467     BOOLEAN                 AddReference);
    468 
    469 BOOLEAN
    470 AcpiDsIsResultUsed (
    471     ACPI_PARSE_OBJECT       *Op,
    472     ACPI_WALK_STATE         *WalkState);
    473 
    474 void
    475 AcpiDsDeleteResultIfNotUsed (
    476     ACPI_PARSE_OBJECT       *Op,
    477     ACPI_OPERAND_OBJECT     *ResultObj,
    478     ACPI_WALK_STATE         *WalkState);
    479 
    480 ACPI_STATUS
    481 AcpiDsCreateOperand (
    482     ACPI_WALK_STATE         *WalkState,
    483     ACPI_PARSE_OBJECT       *Arg,
    484     UINT32                  ArgsRemaining);
    485 
    486 ACPI_STATUS
    487 AcpiDsCreateOperands (
    488     ACPI_WALK_STATE         *WalkState,
    489     ACPI_PARSE_OBJECT       *FirstArg);
    490 
    491 ACPI_STATUS
    492 AcpiDsResolveOperands (
    493     ACPI_WALK_STATE         *WalkState);
    494 
    495 void
    496 AcpiDsClearOperands (
    497     ACPI_WALK_STATE         *WalkState);
    498 
    499 ACPI_STATUS
    500 AcpiDsEvaluateNamePath (
    501     ACPI_WALK_STATE         *WalkState);
    502 
    503 
    504 /*
    505  * dswscope - Scope Stack manipulation
    506  */
    507 ACPI_STATUS
    508 AcpiDsScopeStackPush (
    509     ACPI_NAMESPACE_NODE     *Node,
    510     ACPI_OBJECT_TYPE        Type,
    511     ACPI_WALK_STATE         *WalkState);
    512 
    513 
    514 ACPI_STATUS
    515 AcpiDsScopeStackPop (
    516     ACPI_WALK_STATE         *WalkState);
    517 
    518 void
    519 AcpiDsScopeStackClear (
    520     ACPI_WALK_STATE         *WalkState);
    521 
    522 
    523 /*
    524  * dswstate - parser WALK_STATE management routines
    525  */
    526 ACPI_STATUS
    527 AcpiDsObjStackPush (
    528     void                    *Object,
    529     ACPI_WALK_STATE         *WalkState);
    530 
    531 ACPI_STATUS
    532 AcpiDsObjStackPop (
    533     UINT32                  PopCount,
    534     ACPI_WALK_STATE         *WalkState);
    535 
    536 ACPI_WALK_STATE *
    537 AcpiDsCreateWalkState (
    538     ACPI_OWNER_ID           OwnerId,
    539     ACPI_PARSE_OBJECT       *Origin,
    540     ACPI_OPERAND_OBJECT     *MthDesc,
    541     ACPI_THREAD_STATE       *Thread);
    542 
    543 ACPI_STATUS
    544 AcpiDsInitAmlWalk (
    545     ACPI_WALK_STATE         *WalkState,
    546     ACPI_PARSE_OBJECT       *Op,
    547     ACPI_NAMESPACE_NODE     *MethodNode,
    548     UINT8                   *AmlStart,
    549     UINT32                  AmlLength,
    550     ACPI_EVALUATE_INFO      *Info,
    551     UINT8                   PassNumber);
    552 
    553 void
    554 AcpiDsObjStackPopAndDelete (
    555     UINT32                  PopCount,
    556     ACPI_WALK_STATE         *WalkState);
    557 
    558 void
    559 AcpiDsDeleteWalkState (
    560     ACPI_WALK_STATE         *WalkState);
    561 
    562 ACPI_WALK_STATE *
    563 AcpiDsPopWalkState (
    564     ACPI_THREAD_STATE       *Thread);
    565 
    566 void
    567 AcpiDsPushWalkState (
    568     ACPI_WALK_STATE         *WalkState,
    569     ACPI_THREAD_STATE       *Thread);
    570 
    571 ACPI_STATUS
    572 AcpiDsResultStackClear (
    573     ACPI_WALK_STATE         *WalkState);
    574 
    575 ACPI_WALK_STATE *
    576 AcpiDsGetCurrentWalkState (
    577     ACPI_THREAD_STATE       *Thread);
    578 
    579 ACPI_STATUS
    580 AcpiDsResultPop (
    581     ACPI_OPERAND_OBJECT     **Object,
    582     ACPI_WALK_STATE         *WalkState);
    583 
    584 ACPI_STATUS
    585 AcpiDsResultPush (
    586     ACPI_OPERAND_OBJECT     *Object,
    587     ACPI_WALK_STATE         *WalkState);
    588 
    589 
    590 /*
    591  * dsdebug - parser debugging routines
    592  */
    593 void
    594 AcpiDsDumpMethodStack (
    595     ACPI_STATUS             Status,
    596     ACPI_WALK_STATE         *WalkState,
    597     ACPI_PARSE_OBJECT       *Op);
    598 
    599 #endif /* _ACDISPAT_H_ */
    600