1/******************************************************************************
2 *
3 * Module Name: exoparg2 - AML execution - opcodes with 2 arguments
4 *
5 *****************************************************************************/
6
7/******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2018, 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#include "acpi.h"
153#include "accommon.h"
154#include "acparser.h"
155#include "acinterp.h"
156#include "acevents.h"
157#include "amlcode.h"
158
159
160#define _COMPONENT          ACPI_EXECUTER
161        ACPI_MODULE_NAME    ("exoparg2")
162
163
164/*!
165 * Naming convention for AML interpreter execution routines.
166 *
167 * The routines that begin execution of AML opcodes are named with a common
168 * convention based upon the number of arguments, the number of target operands,
169 * and whether or not a value is returned:
170 *
171 *      AcpiExOpcode_xA_yT_zR
172 *
173 * Where:
174 *
175 * xA - ARGUMENTS:    The number of arguments (input operands) that are
176 *                    required for this opcode type (1 through 6 args).
177 * yT - TARGETS:      The number of targets (output operands) that are required
178 *                    for this opcode type (0, 1, or 2 targets).
179 * zR - RETURN VALUE: Indicates whether this opcode type returns a value
180 *                    as the function return (0 or 1).
181 *
182 * The AcpiExOpcode* functions are called via the Dispatcher component with
183 * fully resolved operands.
184!*/
185
186
187/*******************************************************************************
188 *
189 * FUNCTION:    AcpiExOpcode_2A_0T_0R
190 *
191 * PARAMETERS:  WalkState           - Current walk state
192 *
193 * RETURN:      Status
194 *
195 * DESCRIPTION: Execute opcode with two arguments, no target, and no return
196 *              value.
197 *
198 * ALLOCATION:  Deletes both operands
199 *
200 ******************************************************************************/
201
202ACPI_STATUS
203AcpiExOpcode_2A_0T_0R (
204    ACPI_WALK_STATE         *WalkState)
205{
206    ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
207    ACPI_NAMESPACE_NODE     *Node;
208    UINT32                  Value;
209    ACPI_STATUS             Status = AE_OK;
210
211
212    ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_0R,
213            AcpiPsGetOpcodeName (WalkState->Opcode));
214
215
216    /* Examine the opcode */
217
218    switch (WalkState->Opcode)
219    {
220    case AML_NOTIFY_OP:         /* Notify (NotifyObject, NotifyValue) */
221
222        /* The first operand is a namespace node */
223
224        Node = (ACPI_NAMESPACE_NODE *) Operand[0];
225
226        /* Second value is the notify value */
227
228        Value = (UINT32) Operand[1]->Integer.Value;
229
230        /* Are notifies allowed on this object? */
231
232        if (!AcpiEvIsNotifyObject (Node))
233        {
234            ACPI_ERROR ((AE_INFO,
235                "Unexpected notify object type [%s]",
236                AcpiUtGetTypeName (Node->Type)));
237
238            Status = AE_AML_OPERAND_TYPE;
239            break;
240        }
241
242        /*
243         * Dispatch the notify to the appropriate handler
244         * NOTE: the request is queued for execution after this method
245         * completes. The notify handlers are NOT invoked synchronously
246         * from this thread -- because handlers may in turn run other
247         * control methods.
248         */
249        Status = AcpiEvQueueNotifyRequest (Node, Value);
250        break;
251
252    default:
253
254        ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
255            WalkState->Opcode));
256        Status = AE_AML_BAD_OPCODE;
257    }
258
259    return_ACPI_STATUS (Status);
260}
261
262
263/*******************************************************************************
264 *
265 * FUNCTION:    AcpiExOpcode_2A_2T_1R
266 *
267 * PARAMETERS:  WalkState           - Current walk state
268 *
269 * RETURN:      Status
270 *
271 * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets
272 *              and one implicit return value.
273 *
274 ******************************************************************************/
275
276ACPI_STATUS
277AcpiExOpcode_2A_2T_1R (
278    ACPI_WALK_STATE         *WalkState)
279{
280    ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
281    ACPI_OPERAND_OBJECT     *ReturnDesc1 = NULL;
282    ACPI_OPERAND_OBJECT     *ReturnDesc2 = NULL;
283    ACPI_STATUS             Status;
284
285
286    ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_2T_1R,
287        AcpiPsGetOpcodeName (WalkState->Opcode));
288
289
290    /* Execute the opcode */
291
292    switch (WalkState->Opcode)
293    {
294    case AML_DIVIDE_OP:
295
296        /* Divide (Dividend, Divisor, RemainderResult QuotientResult) */
297
298        ReturnDesc1 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
299        if (!ReturnDesc1)
300        {
301            Status = AE_NO_MEMORY;
302            goto Cleanup;
303        }
304
305        ReturnDesc2 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
306        if (!ReturnDesc2)
307        {
308            Status = AE_NO_MEMORY;
309            goto Cleanup;
310        }
311
312        /* Quotient to ReturnDesc1, remainder to ReturnDesc2 */
313
314        Status = AcpiUtDivide (
315            Operand[0]->Integer.Value,
316            Operand[1]->Integer.Value,
317            &ReturnDesc1->Integer.Value,
318            &ReturnDesc2->Integer.Value);
319        if (ACPI_FAILURE (Status))
320        {
321            goto Cleanup;
322        }
323        break;
324
325    default:
326
327        ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
328            WalkState->Opcode));
329
330        Status = AE_AML_BAD_OPCODE;
331        goto Cleanup;
332    }
333
334    /* Store the results to the target reference operands */
335
336    Status = AcpiExStore (ReturnDesc2, Operand[2], WalkState);
337    if (ACPI_FAILURE (Status))
338    {
339        goto Cleanup;
340    }
341
342    Status = AcpiExStore (ReturnDesc1, Operand[3], WalkState);
343    if (ACPI_FAILURE (Status))
344    {
345        goto Cleanup;
346    }
347
348Cleanup:
349    /*
350     * Since the remainder is not returned indirectly, remove a reference to
351     * it. Only the quotient is returned indirectly.
352     */
353    AcpiUtRemoveReference (ReturnDesc2);
354
355    if (ACPI_FAILURE (Status))
356    {
357        /* Delete the return object */
358
359        AcpiUtRemoveReference (ReturnDesc1);
360    }
361
362    /* Save return object (the remainder) on success */
363
364    else
365    {
366        WalkState->ResultObj = ReturnDesc1;
367    }
368
369    return_ACPI_STATUS (Status);
370}
371
372
373/*******************************************************************************
374 *
375 * FUNCTION:    AcpiExOpcode_2A_1T_1R
376 *
377 * PARAMETERS:  WalkState           - Current walk state
378 *
379 * RETURN:      Status
380 *
381 * DESCRIPTION: Execute opcode with two arguments, one target, and a return
382 *              value.
383 *
384 ******************************************************************************/
385
386ACPI_STATUS
387AcpiExOpcode_2A_1T_1R (
388    ACPI_WALK_STATE         *WalkState)
389{
390    ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
391    ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
392    UINT64                  Index;
393    ACPI_STATUS             Status = AE_OK;
394    ACPI_SIZE               Length = 0;
395
396
397    ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_1T_1R,
398        AcpiPsGetOpcodeName (WalkState->Opcode));
399
400
401    /* Execute the opcode */
402
403    if (WalkState->OpInfo->Flags & AML_MATH)
404    {
405        /* All simple math opcodes (add, etc.) */
406
407        ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
408        if (!ReturnDesc)
409        {
410            Status = AE_NO_MEMORY;
411            goto Cleanup;
412        }
413
414        ReturnDesc->Integer.Value = AcpiExDoMathOp (
415            WalkState->Opcode,
416            Operand[0]->Integer.Value,
417            Operand[1]->Integer.Value);
418        goto StoreResultToTarget;
419    }
420
421    switch (WalkState->Opcode)
422    {
423    case AML_MOD_OP: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */
424
425        ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
426        if (!ReturnDesc)
427        {
428            Status = AE_NO_MEMORY;
429            goto Cleanup;
430        }
431
432        /* ReturnDesc will contain the remainder */
433
434        Status = AcpiUtDivide (
435            Operand[0]->Integer.Value,
436            Operand[1]->Integer.Value,
437            NULL,
438            &ReturnDesc->Integer.Value);
439        break;
440
441    case AML_CONCATENATE_OP: /* Concatenate (Data1, Data2, Result) */
442
443        Status = AcpiExDoConcatenate (
444            Operand[0], Operand[1], &ReturnDesc, WalkState);
445        break;
446
447    case AML_TO_STRING_OP: /* ToString (Buffer, Length, Result) (ACPI 2.0) */
448        /*
449         * Input object is guaranteed to be a buffer at this point (it may have
450         * been converted.)  Copy the raw buffer data to a new object of
451         * type String.
452         */
453
454        /*
455         * Get the length of the new string. It is the smallest of:
456         * 1) Length of the input buffer
457         * 2) Max length as specified in the ToString operator
458         * 3) Length of input buffer up to a zero byte (null terminator)
459         *
460         * NOTE: A length of zero is ok, and will create a zero-length, null
461         *       terminated string.
462         */
463        while ((Length < Operand[0]->Buffer.Length) &&
464               (Length < Operand[1]->Integer.Value) &&
465               (Operand[0]->Buffer.Pointer[Length]))
466        {
467            Length++;
468        }
469
470        /* Allocate a new string object */
471
472        ReturnDesc = AcpiUtCreateStringObject (Length);
473        if (!ReturnDesc)
474        {
475            Status = AE_NO_MEMORY;
476            goto Cleanup;
477        }
478
479        /*
480         * Copy the raw buffer data with no transform.
481         * (NULL terminated already)
482         */
483        memcpy (ReturnDesc->String.Pointer,
484            Operand[0]->Buffer.Pointer, Length);
485        break;
486
487    case AML_CONCATENATE_TEMPLATE_OP:
488
489        /* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */
490
491        Status = AcpiExConcatTemplate (
492            Operand[0], Operand[1], &ReturnDesc, WalkState);
493        break;
494
495    case AML_INDEX_OP:              /* Index (Source Index Result) */
496
497        /* Create the internal return object */
498
499        ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE);
500        if (!ReturnDesc)
501        {
502            Status = AE_NO_MEMORY;
503            goto Cleanup;
504        }
505
506        /* Initialize the Index reference object */
507
508        Index = Operand[1]->Integer.Value;
509        ReturnDesc->Reference.Value = (UINT32) Index;
510        ReturnDesc->Reference.Class = ACPI_REFCLASS_INDEX;
511
512        /*
513         * At this point, the Source operand is a String, Buffer, or Package.
514         * Verify that the index is within range.
515         */
516        switch ((Operand[0])->Common.Type)
517        {
518        case ACPI_TYPE_STRING:
519
520            if (Index >= Operand[0]->String.Length)
521            {
522                Length = Operand[0]->String.Length;
523                Status = AE_AML_STRING_LIMIT;
524            }
525
526            ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
527            ReturnDesc->Reference.IndexPointer =
528                &(Operand[0]->Buffer.Pointer [Index]);
529            break;
530
531        case ACPI_TYPE_BUFFER:
532
533            if (Index >= Operand[0]->Buffer.Length)
534            {
535                Length = Operand[0]->Buffer.Length;
536                Status = AE_AML_BUFFER_LIMIT;
537            }
538
539            ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
540            ReturnDesc->Reference.IndexPointer =
541                &(Operand[0]->Buffer.Pointer [Index]);
542            break;
543
544        case ACPI_TYPE_PACKAGE:
545
546            if (Index >= Operand[0]->Package.Count)
547            {
548                Length = Operand[0]->Package.Count;
549                Status = AE_AML_PACKAGE_LIMIT;
550            }
551
552            ReturnDesc->Reference.TargetType = ACPI_TYPE_PACKAGE;
553            ReturnDesc->Reference.Where =
554                &Operand[0]->Package.Elements [Index];
555            break;
556
557        default:
558
559            ACPI_ERROR ((AE_INFO,
560                "Invalid object type: %X", (Operand[0])->Common.Type));
561            Status = AE_AML_INTERNAL;
562            goto Cleanup;
563        }
564
565        /* Failure means that the Index was beyond the end of the object */
566
567        if (ACPI_FAILURE (Status))
568        {
569            ACPI_EXCEPTION ((AE_INFO, Status,
570                "Index (0x%X%8.8X) is beyond end of object (length 0x%X)",
571                ACPI_FORMAT_UINT64 (Index), (UINT32) Length));
572            goto Cleanup;
573        }
574
575        /*
576         * Save the target object and add a reference to it for the life
577         * of the index
578         */
579        ReturnDesc->Reference.Object = Operand[0];
580        AcpiUtAddReference (Operand[0]);
581
582        /* Store the reference to the Target */
583
584        Status = AcpiExStore (ReturnDesc, Operand[2], WalkState);
585
586        /* Return the reference */
587
588        WalkState->ResultObj = ReturnDesc;
589        goto Cleanup;
590
591    default:
592
593        ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
594            WalkState->Opcode));
595        Status = AE_AML_BAD_OPCODE;
596        break;
597    }
598
599
600StoreResultToTarget:
601
602    if (ACPI_SUCCESS (Status))
603    {
604        /*
605         * Store the result of the operation (which is now in ReturnDesc) into
606         * the Target descriptor.
607         */
608        Status = AcpiExStore (ReturnDesc, Operand[2], WalkState);
609        if (ACPI_FAILURE (Status))
610        {
611            goto Cleanup;
612        }
613
614        if (!WalkState->ResultObj)
615        {
616            WalkState->ResultObj = ReturnDesc;
617        }
618    }
619
620
621Cleanup:
622
623    /* Delete return object on error */
624
625    if (ACPI_FAILURE (Status))
626    {
627        AcpiUtRemoveReference (ReturnDesc);
628        WalkState->ResultObj = NULL;
629    }
630
631    return_ACPI_STATUS (Status);
632}
633
634
635/*******************************************************************************
636 *
637 * FUNCTION:    AcpiExOpcode_2A_0T_1R
638 *
639 * PARAMETERS:  WalkState           - Current walk state
640 *
641 * RETURN:      Status
642 *
643 * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value
644 *
645 ******************************************************************************/
646
647ACPI_STATUS
648AcpiExOpcode_2A_0T_1R (
649    ACPI_WALK_STATE         *WalkState)
650{
651    ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
652    ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
653    ACPI_STATUS             Status = AE_OK;
654    BOOLEAN                 LogicalResult = FALSE;
655
656
657    ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_1R,
658        AcpiPsGetOpcodeName (WalkState->Opcode));
659
660
661    /* Create the internal return object */
662
663    ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
664    if (!ReturnDesc)
665    {
666        Status = AE_NO_MEMORY;
667        goto Cleanup;
668    }
669
670    /* Execute the Opcode */
671
672    if (WalkState->OpInfo->Flags & AML_LOGICAL_NUMERIC)
673    {
674        /* LogicalOp  (Operand0, Operand1) */
675
676        Status = AcpiExDoLogicalNumericOp (WalkState->Opcode,
677            Operand[0]->Integer.Value, Operand[1]->Integer.Value,
678            &LogicalResult);
679        goto StoreLogicalResult;
680    }
681    else if (WalkState->OpInfo->Flags & AML_LOGICAL)
682    {
683        /* LogicalOp  (Operand0, Operand1) */
684
685        Status = AcpiExDoLogicalOp (WalkState->Opcode, Operand[0],
686            Operand[1], &LogicalResult);
687        goto StoreLogicalResult;
688    }
689
690    switch (WalkState->Opcode)
691    {
692    case AML_ACQUIRE_OP:            /* Acquire (MutexObject, Timeout) */
693
694        Status = AcpiExAcquireMutex (Operand[1], Operand[0], WalkState);
695        if (Status == AE_TIME)
696        {
697            LogicalResult = TRUE;       /* TRUE = Acquire timed out */
698            Status = AE_OK;
699        }
700        break;
701
702
703    case AML_WAIT_OP:               /* Wait (EventObject, Timeout) */
704
705        Status = AcpiExSystemWaitEvent (Operand[1], Operand[0]);
706        if (Status == AE_TIME)
707        {
708            LogicalResult = TRUE;       /* TRUE, Wait timed out */
709            Status = AE_OK;
710        }
711        break;
712
713    default:
714
715        ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
716            WalkState->Opcode));
717
718        Status = AE_AML_BAD_OPCODE;
719        goto Cleanup;
720    }
721
722
723StoreLogicalResult:
724    /*
725     * Set return value to according to LogicalResult. logical TRUE (all ones)
726     * Default is FALSE (zero)
727     */
728    if (LogicalResult)
729    {
730        ReturnDesc->Integer.Value = ACPI_UINT64_MAX;
731    }
732
733Cleanup:
734
735    /* Delete return object on error */
736
737    if (ACPI_FAILURE (Status))
738    {
739        AcpiUtRemoveReference (ReturnDesc);
740    }
741
742    /* Save return object on success */
743
744    else
745    {
746        WalkState->ResultObj = ReturnDesc;
747    }
748
749    return_ACPI_STATUS (Status);
750}
751