1 /******************************************************************************
3 * Module Name: exoparg2 - AML execution - opcodes with 2 arguments
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
12 * All rights reserved.
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
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
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;
37 * The above copyright and patent license is granted only if the following
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.
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
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
72 * 3.4. Intel retains all right, title, and interest in and to the Original
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.
80 * 4. Disclaimer and Export Compliance
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
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
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.
114 *****************************************************************************
116 * Alternatively, you may choose to be licensed under the terms of the
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
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.
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.
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.
150 *****************************************************************************/
153 #include "accommon.h"
154 #include "acparser.h"
155 #include "acinterp.h"
156 #include "acevents.h"
160 #define _COMPONENT ACPI_EXECUTER
161 ACPI_MODULE_NAME ("exoparg2")
165 * Naming convention for AML interpreter execution routines.
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:
171 * AcpiExOpcode_xA_yT_zR
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).
182 * The AcpiExOpcode* functions are called via the Dispatcher component with
183 * fully resolved operands.
187 /*******************************************************************************
189 * FUNCTION: AcpiExOpcode_2A_0T_0R
191 * PARAMETERS: WalkState - Current walk state
195 * DESCRIPTION: Execute opcode with two arguments, no target, and no return
198 * ALLOCATION: Deletes both operands
200 ******************************************************************************/
203 AcpiExOpcode_2A_0T_0R (
204 ACPI_WALK_STATE
*WalkState
)
206 ACPI_OPERAND_OBJECT
**Operand
= &WalkState
->Operands
[0];
207 ACPI_NAMESPACE_NODE
*Node
;
209 ACPI_STATUS Status
= AE_OK
;
212 ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_0R
,
213 AcpiPsGetOpcodeName (WalkState
->Opcode
));
216 /* Examine the opcode */
218 switch (WalkState
->Opcode
)
220 case AML_NOTIFY_OP
: /* Notify (NotifyObject, NotifyValue) */
222 /* The first operand is a namespace node */
224 Node
= (ACPI_NAMESPACE_NODE
*) Operand
[0];
226 /* Second value is the notify value */
228 Value
= (UINT32
) Operand
[1]->Integer
.Value
;
230 /* Are notifies allowed on this object? */
232 if (!AcpiEvIsNotifyObject (Node
))
234 ACPI_ERROR ((AE_INFO
,
235 "Unexpected notify object type [%s]",
236 AcpiUtGetTypeName (Node
->Type
)));
238 Status
= AE_AML_OPERAND_TYPE
;
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
249 Status
= AcpiEvQueueNotifyRequest (Node
, Value
);
254 ACPI_ERROR ((AE_INFO
, "Unknown AML opcode 0x%X",
256 Status
= AE_AML_BAD_OPCODE
;
259 return_ACPI_STATUS (Status
);
263 /*******************************************************************************
265 * FUNCTION: AcpiExOpcode_2A_2T_1R
267 * PARAMETERS: WalkState - Current walk state
271 * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets
272 * and one implicit return value.
274 ******************************************************************************/
277 AcpiExOpcode_2A_2T_1R (
278 ACPI_WALK_STATE
*WalkState
)
280 ACPI_OPERAND_OBJECT
**Operand
= &WalkState
->Operands
[0];
281 ACPI_OPERAND_OBJECT
*ReturnDesc1
= NULL
;
282 ACPI_OPERAND_OBJECT
*ReturnDesc2
= NULL
;
286 ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_2T_1R
,
287 AcpiPsGetOpcodeName (WalkState
->Opcode
));
290 /* Execute the opcode */
292 switch (WalkState
->Opcode
)
296 /* Divide (Dividend, Divisor, RemainderResult QuotientResult) */
298 ReturnDesc1
= AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER
);
301 Status
= AE_NO_MEMORY
;
305 ReturnDesc2
= AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER
);
308 Status
= AE_NO_MEMORY
;
312 /* Quotient to ReturnDesc1, remainder to ReturnDesc2 */
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
))
327 ACPI_ERROR ((AE_INFO
, "Unknown AML opcode 0x%X",
330 Status
= AE_AML_BAD_OPCODE
;
334 /* Store the results to the target reference operands */
336 Status
= AcpiExStore (ReturnDesc2
, Operand
[2], WalkState
);
337 if (ACPI_FAILURE (Status
))
342 Status
= AcpiExStore (ReturnDesc1
, Operand
[3], WalkState
);
343 if (ACPI_FAILURE (Status
))
350 * Since the remainder is not returned indirectly, remove a reference to
351 * it. Only the quotient is returned indirectly.
353 AcpiUtRemoveReference (ReturnDesc2
);
355 if (ACPI_FAILURE (Status
))
357 /* Delete the return object */
359 AcpiUtRemoveReference (ReturnDesc1
);
362 /* Save return object (the remainder) on success */
366 WalkState
->ResultObj
= ReturnDesc1
;
369 return_ACPI_STATUS (Status
);
373 /*******************************************************************************
375 * FUNCTION: AcpiExOpcode_2A_1T_1R
377 * PARAMETERS: WalkState - Current walk state
381 * DESCRIPTION: Execute opcode with two arguments, one target, and a return
384 ******************************************************************************/
387 AcpiExOpcode_2A_1T_1R (
388 ACPI_WALK_STATE
*WalkState
)
390 ACPI_OPERAND_OBJECT
**Operand
= &WalkState
->Operands
[0];
391 ACPI_OPERAND_OBJECT
*ReturnDesc
= NULL
;
393 ACPI_STATUS Status
= AE_OK
;
394 ACPI_SIZE Length
= 0;
397 ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_1T_1R
,
398 AcpiPsGetOpcodeName (WalkState
->Opcode
));
401 /* Execute the opcode */
403 if (WalkState
->OpInfo
->Flags
& AML_MATH
)
405 /* All simple math opcodes (add, etc.) */
407 ReturnDesc
= AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER
);
410 Status
= AE_NO_MEMORY
;
414 ReturnDesc
->Integer
.Value
= AcpiExDoMathOp (
416 Operand
[0]->Integer
.Value
,
417 Operand
[1]->Integer
.Value
);
418 goto StoreResultToTarget
;
421 switch (WalkState
->Opcode
)
423 case AML_MOD_OP
: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */
425 ReturnDesc
= AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER
);
428 Status
= AE_NO_MEMORY
;
432 /* ReturnDesc will contain the remainder */
434 Status
= AcpiUtDivide (
435 Operand
[0]->Integer
.Value
,
436 Operand
[1]->Integer
.Value
,
438 &ReturnDesc
->Integer
.Value
);
441 case AML_CONCATENATE_OP
: /* Concatenate (Data1, Data2, Result) */
443 Status
= AcpiExDoConcatenate (
444 Operand
[0], Operand
[1], &ReturnDesc
, WalkState
);
447 case AML_TO_STRING_OP
: /* ToString (Buffer, Length, Result) (ACPI 2.0) */
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
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)
460 * NOTE: A length of zero is ok, and will create a zero-length, null
463 while ((Length
< Operand
[0]->Buffer
.Length
) &&
464 (Length
< Operand
[1]->Integer
.Value
) &&
465 (Operand
[0]->Buffer
.Pointer
[Length
]))
470 /* Allocate a new string object */
472 ReturnDesc
= AcpiUtCreateStringObject (Length
);
475 Status
= AE_NO_MEMORY
;
480 * Copy the raw buffer data with no transform.
481 * (NULL terminated already)
483 memcpy (ReturnDesc
->String
.Pointer
,
484 Operand
[0]->Buffer
.Pointer
, Length
);
487 case AML_CONCATENATE_TEMPLATE_OP
:
489 /* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */
491 Status
= AcpiExConcatTemplate (
492 Operand
[0], Operand
[1], &ReturnDesc
, WalkState
);
495 case AML_INDEX_OP
: /* Index (Source Index Result) */
497 /* Create the internal return object */
499 ReturnDesc
= AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE
);
502 Status
= AE_NO_MEMORY
;
506 /* Initialize the Index reference object */
508 Index
= Operand
[1]->Integer
.Value
;
509 ReturnDesc
->Reference
.Value
= (UINT32
) Index
;
510 ReturnDesc
->Reference
.Class
= ACPI_REFCLASS_INDEX
;
513 * At this point, the Source operand is a String, Buffer, or Package.
514 * Verify that the index is within range.
516 switch ((Operand
[0])->Common
.Type
)
518 case ACPI_TYPE_STRING
:
520 if (Index
>= Operand
[0]->String
.Length
)
522 Length
= Operand
[0]->String
.Length
;
523 Status
= AE_AML_STRING_LIMIT
;
526 ReturnDesc
->Reference
.TargetType
= ACPI_TYPE_BUFFER_FIELD
;
527 ReturnDesc
->Reference
.IndexPointer
=
528 &(Operand
[0]->Buffer
.Pointer
[Index
]);
531 case ACPI_TYPE_BUFFER
:
533 if (Index
>= Operand
[0]->Buffer
.Length
)
535 Length
= Operand
[0]->Buffer
.Length
;
536 Status
= AE_AML_BUFFER_LIMIT
;
539 ReturnDesc
->Reference
.TargetType
= ACPI_TYPE_BUFFER_FIELD
;
540 ReturnDesc
->Reference
.IndexPointer
=
541 &(Operand
[0]->Buffer
.Pointer
[Index
]);
544 case ACPI_TYPE_PACKAGE
:
546 if (Index
>= Operand
[0]->Package
.Count
)
548 Length
= Operand
[0]->Package
.Count
;
549 Status
= AE_AML_PACKAGE_LIMIT
;
552 ReturnDesc
->Reference
.TargetType
= ACPI_TYPE_PACKAGE
;
553 ReturnDesc
->Reference
.Where
=
554 &Operand
[0]->Package
.Elements
[Index
];
559 ACPI_ERROR ((AE_INFO
,
560 "Invalid object type: %X", (Operand
[0])->Common
.Type
));
561 Status
= AE_AML_INTERNAL
;
565 /* Failure means that the Index was beyond the end of the object */
567 if (ACPI_FAILURE (Status
))
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
));
576 * Save the target object and add a reference to it for the life
579 ReturnDesc
->Reference
.Object
= Operand
[0];
580 AcpiUtAddReference (Operand
[0]);
582 /* Store the reference to the Target */
584 Status
= AcpiExStore (ReturnDesc
, Operand
[2], WalkState
);
586 /* Return the reference */
588 WalkState
->ResultObj
= ReturnDesc
;
593 ACPI_ERROR ((AE_INFO
, "Unknown AML opcode 0x%X",
595 Status
= AE_AML_BAD_OPCODE
;
602 if (ACPI_SUCCESS (Status
))
605 * Store the result of the operation (which is now in ReturnDesc) into
606 * the Target descriptor.
608 Status
= AcpiExStore (ReturnDesc
, Operand
[2], WalkState
);
609 if (ACPI_FAILURE (Status
))
614 if (!WalkState
->ResultObj
)
616 WalkState
->ResultObj
= ReturnDesc
;
623 /* Delete return object on error */
625 if (ACPI_FAILURE (Status
))
627 AcpiUtRemoveReference (ReturnDesc
);
628 WalkState
->ResultObj
= NULL
;
631 return_ACPI_STATUS (Status
);
635 /*******************************************************************************
637 * FUNCTION: AcpiExOpcode_2A_0T_1R
639 * PARAMETERS: WalkState - Current walk state
643 * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value
645 ******************************************************************************/
648 AcpiExOpcode_2A_0T_1R (
649 ACPI_WALK_STATE
*WalkState
)
651 ACPI_OPERAND_OBJECT
**Operand
= &WalkState
->Operands
[0];
652 ACPI_OPERAND_OBJECT
*ReturnDesc
= NULL
;
653 ACPI_STATUS Status
= AE_OK
;
654 BOOLEAN LogicalResult
= FALSE
;
657 ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_1R
,
658 AcpiPsGetOpcodeName (WalkState
->Opcode
));
661 /* Create the internal return object */
663 ReturnDesc
= AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER
);
666 Status
= AE_NO_MEMORY
;
670 /* Execute the Opcode */
672 if (WalkState
->OpInfo
->Flags
& AML_LOGICAL_NUMERIC
)
674 /* LogicalOp (Operand0, Operand1) */
676 Status
= AcpiExDoLogicalNumericOp (WalkState
->Opcode
,
677 Operand
[0]->Integer
.Value
, Operand
[1]->Integer
.Value
,
679 goto StoreLogicalResult
;
681 else if (WalkState
->OpInfo
->Flags
& AML_LOGICAL
)
683 /* LogicalOp (Operand0, Operand1) */
685 Status
= AcpiExDoLogicalOp (WalkState
->Opcode
, Operand
[0],
686 Operand
[1], &LogicalResult
);
687 goto StoreLogicalResult
;
690 switch (WalkState
->Opcode
)
692 case AML_ACQUIRE_OP
: /* Acquire (MutexObject, Timeout) */
694 Status
= AcpiExAcquireMutex (Operand
[1], Operand
[0], WalkState
);
695 if (Status
== AE_TIME
)
697 LogicalResult
= TRUE
; /* TRUE = Acquire timed out */
703 case AML_WAIT_OP
: /* Wait (EventObject, Timeout) */
705 Status
= AcpiExSystemWaitEvent (Operand
[1], Operand
[0]);
706 if (Status
== AE_TIME
)
708 LogicalResult
= TRUE
; /* TRUE, Wait timed out */
715 ACPI_ERROR ((AE_INFO
, "Unknown AML opcode 0x%X",
718 Status
= AE_AML_BAD_OPCODE
;
725 * Set return value to according to LogicalResult. logical TRUE (all ones)
726 * Default is FALSE (zero)
730 ReturnDesc
->Integer
.Value
= ACPI_UINT64_MAX
;
735 /* Delete return object on error */
737 if (ACPI_FAILURE (Status
))
739 AcpiUtRemoveReference (ReturnDesc
);
742 /* Save return object on success */
746 WalkState
->ResultObj
= ReturnDesc
;
749 return_ACPI_STATUS (Status
);