1 /******************************************************************************
3 * Module Name: asloperands - AML operand processing
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2019, 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 *****************************************************************************/
152 #include "aslcompiler.h"
153 #include "aslcompiler.y.h"
156 #define _COMPONENT ACPI_COMPILER
157 ACPI_MODULE_NAME ("asloperands")
159 /* Local prototypes */
163 ACPI_PARSE_OBJECT *Op);
167 ACPI_PARSE_OBJECT *Op);
171 ACPI_PARSE_OBJECT *Op);
174 OpnDoDefinitionBlock (
175 ACPI_PARSE_OBJECT *Op);
179 ACPI_PARSE_OBJECT *FieldOp,
180 ACPI_PARSE_OBJECT *Op);
184 ACPI_PARSE_OBJECT *Op);
188 ACPI_PARSE_OBJECT *Op);
192 ACPI_PARSE_OBJECT *Op);
196 ACPI_PARSE_OBJECT *Op);
200 ACPI_PARSE_OBJECT *Op);
203 OpnAttachNameToNode (
204 ACPI_PARSE_OBJECT *Op);
207 /*******************************************************************************
209 * FUNCTION: OpnDoMutex
211 * PARAMETERS: Op - The parent parse node
215 * DESCRIPTION: Construct the operands for the MUTEX ASL keyword.
217 ******************************************************************************/
221 ACPI_PARSE_OBJECT *Op)
223 ACPI_PARSE_OBJECT *Next;
226 Next = Op->Asl.Child;
227 Next = Next->Asl.Next;
229 if (Next->Asl.Value.Integer > 15)
231 AslError (ASL_ERROR, ASL_MSG_SYNC_LEVEL, Next, NULL);
237 /*******************************************************************************
239 * FUNCTION: OpnDoMethod
241 * PARAMETERS: Op - The parent parse node
245 * DESCRIPTION: Construct the operands for the METHOD ASL keyword.
247 ******************************************************************************/
251 ACPI_PARSE_OBJECT *Op)
253 ACPI_PARSE_OBJECT *Next;
255 /* Optional arguments for this opcode with defaults */
258 UINT8 Serialized = 0;
259 UINT8 Concurrency = 0;
263 /* Opcode and package length first */
266 Next = Op->Asl.Child;
270 Next = Next->Asl.Next;
271 if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
273 NumArgs = (UINT8) Next->Asl.Value.Integer;
274 Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
277 /* Serialized Flag */
279 Next = Next->Asl.Next;
280 if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
282 Serialized = (UINT8) Next->Asl.Value.Integer;
283 Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
286 /* Concurrency value (valid values are 0-15) */
288 Next = Next->Asl.Next;
289 if (Next->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
291 /* This is a ByteConstExpr, so eval the constant now */
293 OpcAmlConstantWalk (Next, 0, NULL);
295 if (Next->Asl.Value.Integer > 15)
297 AslError (ASL_ERROR, ASL_MSG_SYNC_LEVEL, Next, NULL);
300 Concurrency = (UINT8) Next->Asl.Value.Integer;
303 /* Put the bits in their proper places */
305 MethodFlags = (UINT8)
307 ((Serialized & 0x1) << 3) |
308 ((Concurrency & 0xF) << 4));
310 /* Use the last node for the combined flags byte */
312 Next->Asl.Value.Integer = MethodFlags;
313 Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
314 Next->Asl.AmlLength = 1;
315 Next->Asl.ParseOpcode = PARSEOP_RAW_DATA;
317 /* Save the arg count in the first node */
319 Op->Asl.Extra = NumArgs;
323 /*******************************************************************************
325 * FUNCTION: OpnDoFieldCommon
327 * PARAMETERS: FieldOp - Node for an ASL field
328 * Op - The parent parse node
332 * DESCRIPTION: Construct the AML operands for the various field keywords,
333 * FIELD, BANKFIELD, INDEXFIELD
335 ******************************************************************************/
339 ACPI_PARSE_OBJECT *FieldOp,
340 ACPI_PARSE_OBJECT *Op)
342 ACPI_PARSE_OBJECT *Next;
343 ACPI_PARSE_OBJECT *PkgLengthNode;
344 UINT32 CurrentBitOffset;
350 UINT32 MinimumLength;
353 /* AccessType -- not optional, so no need to check for DEFAULT_ARG */
355 AccessType = (UINT8) Op->Asl.Value.Integer;
356 Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
358 /* Set the access type in the parent (field) node for use later */
360 FieldOp->Asl.Value.Integer = AccessType;
362 /* LockRule -- not optional, so no need to check for DEFAULT_ARG */
365 LockRule = (UINT8) Next->Asl.Value.Integer;
366 Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
368 /* UpdateRule -- not optional, so no need to check for DEFAULT_ARG */
370 Next = Next->Asl.Next;
371 UpdateRule = (UINT8) Next->Asl.Value.Integer;
374 * Generate the flags byte. The various fields are already
375 * in the right bit position via translation from the
376 * keywords by the parser.
378 FieldFlags = (UINT8) (AccessType | LockRule | UpdateRule);
380 /* Use the previous node to be the FieldFlags node */
382 /* Set the node to RAW_DATA */
384 Next->Asl.Value.Integer = FieldFlags;
385 Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
386 Next->Asl.AmlLength = 1;
387 Next->Asl.ParseOpcode = PARSEOP_RAW_DATA;
389 /* Process the FieldUnitList */
391 Next = Next->Asl.Next;
392 CurrentBitOffset = 0;
396 /* Save the offset of this field unit */
398 Next->Asl.ExtraValue = CurrentBitOffset;
400 switch (Next->Asl.ParseOpcode)
402 case PARSEOP_ACCESSAS:
404 PkgLengthNode = Next->Asl.Child;
405 AccessType = (UINT8) PkgLengthNode->Asl.Value.Integer;
407 /* Nothing additional to do */
412 /* New offset into the field */
414 PkgLengthNode = Next->Asl.Child;
415 NewBitOffset = ((UINT32) PkgLengthNode->Asl.Value.Integer) * 8;
418 * Examine the specified offset in relation to the
419 * current offset counter.
421 if (NewBitOffset < CurrentBitOffset)
424 * Not allowed to specify a backwards offset!
425 * Issue error and ignore this node.
427 AslError (ASL_ERROR, ASL_MSG_BACKWARDS_OFFSET, PkgLengthNode,
429 Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
430 PkgLengthNode->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
432 else if (NewBitOffset == CurrentBitOffset)
435 * This Offset() operator is redundant and not needed,
436 * because the offset value is the same as the current
439 AslError (ASL_REMARK, ASL_MSG_OFFSET, PkgLengthNode, NULL);
441 if (AslGbl_OptimizeTrivialParseNodes)
444 * Optimize this Offset() operator by removing/ignoring
445 * it. Set the related nodes to default.
447 Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
448 PkgLengthNode->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
450 AslError (ASL_OPTIMIZATION, ASL_MSG_OFFSET, PkgLengthNode,
451 "Optimizer has removed statement");
455 /* Optimization is disabled, treat as a valid Offset */
457 PkgLengthNode->Asl.Value.Integer =
458 NewBitOffset - CurrentBitOffset;
459 CurrentBitOffset = NewBitOffset;
465 * Valid new offset - set the value to be inserted into the AML
466 * and update the offset counter.
468 PkgLengthNode->Asl.Value.Integer =
469 NewBitOffset - CurrentBitOffset;
470 CurrentBitOffset = NewBitOffset;
474 case PARSEOP_NAMESEG:
475 case PARSEOP_RESERVED_BYTES:
477 /* Named or reserved field entry */
479 PkgLengthNode = Next->Asl.Child;
480 NewBitOffset = (UINT32) PkgLengthNode->Asl.Value.Integer;
481 CurrentBitOffset += NewBitOffset;
483 if ((NewBitOffset == 0) &&
484 (Next->Asl.ParseOpcode == PARSEOP_RESERVED_BYTES) &&
485 AslGbl_OptimizeTrivialParseNodes)
488 * Unnamed field with a bit length of zero. We can
489 * safely just ignore this. However, we will not ignore
490 * a named field of zero length, we don't want to just
493 Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
494 PkgLengthNode->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
498 /* Save the current AccessAs value for error checking later */
502 case AML_FIELD_ACCESS_ANY:
503 case AML_FIELD_ACCESS_BYTE:
504 case AML_FIELD_ACCESS_BUFFER:
510 case AML_FIELD_ACCESS_WORD:
514 case AML_FIELD_ACCESS_DWORD:
518 case AML_FIELD_ACCESS_QWORD:
523 PkgLengthNode->Asl.ExtraValue = MinimumLength;
528 /* All supported field opcodes must appear above */
533 /* Move on to next entry in the field list */
535 Next = Next->Asl.Next;
540 /*******************************************************************************
542 * FUNCTION: OpnDoField
544 * PARAMETERS: Op - The parent parse node
548 * DESCRIPTION: Construct the AML operands for the FIELD ASL keyword
550 ******************************************************************************/
554 ACPI_PARSE_OBJECT *Op)
556 ACPI_PARSE_OBJECT *Next;
559 /* Opcode is parent node */
560 /* First child is field name */
562 Next = Op->Asl.Child;
564 /* Second child is the AccessType */
566 OpnDoFieldCommon (Op, Next->Asl.Next);
570 /*******************************************************************************
572 * FUNCTION: OpnDoIndexField
574 * PARAMETERS: Op - The parent parse node
578 * DESCRIPTION: Construct the AML operands for the INDEXFIELD ASL keyword
580 ******************************************************************************/
584 ACPI_PARSE_OBJECT *Op)
586 ACPI_PARSE_OBJECT *Next;
589 /* Opcode is parent node */
590 /* First child is the index name */
592 Next = Op->Asl.Child;
594 /* Second child is the data name */
596 Next = Next->Asl.Next;
598 /* Third child is the AccessType */
600 OpnDoFieldCommon (Op, Next->Asl.Next);
604 /*******************************************************************************
606 * FUNCTION: OpnDoBankField
608 * PARAMETERS: Op - The parent parse node
612 * DESCRIPTION: Construct the AML operands for the BANKFIELD ASL keyword
614 ******************************************************************************/
618 ACPI_PARSE_OBJECT *Op)
620 ACPI_PARSE_OBJECT *Next;
623 /* Opcode is parent node */
624 /* First child is the region name */
626 Next = Op->Asl.Child;
628 /* Second child is the bank name */
630 Next = Next->Asl.Next;
632 /* Third child is the bank value */
634 Next = Next->Asl.Next;
636 /* Fourth child is the AccessType */
638 OpnDoFieldCommon (Op, Next->Asl.Next);
642 /*******************************************************************************
644 * FUNCTION: OpnDoRegion
646 * PARAMETERS: Op - The parent parse node
650 * DESCRIPTION: Tries to get the length of the region. Can only do this at
651 * compile time if the length is a constant.
653 ******************************************************************************/
657 ACPI_PARSE_OBJECT *Op)
659 ACPI_PARSE_OBJECT *Next;
660 ACPI_ADR_SPACE_TYPE SpaceId;
663 /* Opcode is parent node */
664 /* First child is the region name */
666 Next = Op->Asl.Child;
668 /* Second child is the space ID */
670 Next = Next->Asl.Next;
671 SpaceId = (ACPI_ADR_SPACE_TYPE) Next->Common.Value.Integer;
673 /* Third child is the region offset */
675 Next = Next->Asl.Next;
677 /* Fourth child is the region length */
679 Next = Next->Asl.Next;
680 if (Next->Asl.ParseOpcode == PARSEOP_INTEGER)
682 /* Check for zero length */
684 Op->Asl.Value.Integer = Next->Asl.Value.Integer;
685 if (!Op->Asl.Value.Integer && (SpaceId < ACPI_NUM_PREDEFINED_REGIONS))
687 AslError (ASL_ERROR, ASL_MSG_REGION_LENGTH, Op, NULL);
692 Op->Asl.Value.Integer = ACPI_UINT64_MAX;
697 /*******************************************************************************
699 * FUNCTION: OpnDoBuffer
701 * PARAMETERS: Op - The parent parse node
705 * DESCRIPTION: Construct the AML operands for the BUFFER ASL keyword. We
706 * build a single raw byte buffer from the initialization nodes,
707 * each parse node contains a buffer byte.
709 ******************************************************************************/
713 ACPI_PARSE_OBJECT *Op)
715 ACPI_PARSE_OBJECT *InitializerOp;
716 ACPI_PARSE_OBJECT *BufferLengthOp;
718 /* Optional arguments for this opcode with defaults */
720 UINT32 BufferLength = 0;
723 /* Opcode and package length first */
724 /* Buffer Length is next, followed by the initializer list */
726 BufferLengthOp = Op->Asl.Child;
727 InitializerOp = BufferLengthOp->Asl.Next;
730 * If the BufferLength is not an INTEGER or was not specified in the ASL
731 * (DEFAULT_ARG), it is a TermArg that is
732 * evaluated at run-time, and we are therefore finished.
734 if ((BufferLengthOp->Asl.ParseOpcode != PARSEOP_INTEGER) &&
735 (BufferLengthOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG))
741 * We want to count the number of items in the initializer list, because if
742 * it is larger than the buffer length, we will define the buffer size
743 * to be the size of the initializer list (as per the ACPI Specification)
745 switch (InitializerOp->Asl.ParseOpcode)
747 case PARSEOP_INTEGER:
748 case PARSEOP_BYTECONST:
749 case PARSEOP_WORDCONST:
750 case PARSEOP_DWORDCONST:
752 /* The peer list contains the byte list (if any...) */
754 while (InitializerOp)
756 /* For buffers, this is a list of raw bytes */
758 InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
759 InitializerOp->Asl.AmlLength = 1;
760 InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
763 InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
767 case PARSEOP_STRING_LITERAL:
770 * Only one initializer, the string. Buffer must be big enough to hold
771 * the string plus the null termination byte
773 BufferLength = strlen (InitializerOp->Asl.Value.String) + 1;
775 InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BUFFER;
776 InitializerOp->Asl.AmlLength = BufferLength;
777 InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
780 case PARSEOP_RAW_DATA:
782 /* Buffer nodes are already initialized (e.g. Unicode operator) */
785 case PARSEOP_DEFAULT_ARG:
790 AslError (ASL_ERROR, ASL_MSG_INVALID_OPERAND, InitializerOp,
791 "Unknown buffer initializer opcode");
792 printf ("Unknown buffer initializer opcode [%s]\n",
793 UtGetOpName (InitializerOp->Asl.ParseOpcode));
797 /* Check if initializer list is longer than the buffer length */
799 if (BufferLengthOp->Asl.Value.Integer > BufferLength)
801 BufferLength = (UINT32) BufferLengthOp->Asl.Value.Integer;
806 /* No length AND no items -- issue notice */
808 AslError (ASL_REMARK, ASL_MSG_BUFFER_LENGTH, BufferLengthOp, NULL);
810 /* But go ahead and put the buffer length of zero into the AML */
814 * Just set the buffer size node to be the buffer length, regardless
815 * of whether it was previously an integer or a default_arg placeholder
817 BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
818 BufferLengthOp->Asl.AmlOpcode = AML_DWORD_OP;
819 BufferLengthOp->Asl.Value.Integer = BufferLength;
821 (void) OpcSetOptimalIntegerSize (BufferLengthOp);
823 /* Remaining nodes are handled via the tree walk */
827 /*******************************************************************************
829 * FUNCTION: OpnDoPackage
831 * PARAMETERS: Op - The parent parse node
835 * DESCRIPTION: Construct the AML operands for the PACKAGE ASL keyword. NOTE:
836 * can only be called after constants have been folded, to ensure
837 * that the PackageLength operand has been fully reduced.
839 ******************************************************************************/
843 ACPI_PARSE_OBJECT *Op)
845 ACPI_PARSE_OBJECT *InitializerOp;
846 ACPI_PARSE_OBJECT *PackageLengthOp;
847 UINT32 PackageLength = 0;
850 /* Opcode and package length first, followed by the initializer list */
852 PackageLengthOp = Op->Asl.Child;
853 InitializerOp = PackageLengthOp->Asl.Next;
855 /* Count the number of items in the initializer list */
857 if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
859 /* The peer list contains the byte list (if any...) */
861 while (InitializerOp)
864 InitializerOp = InitializerOp->Asl.Next;
868 /* If package length is a constant, compare to the initializer list */
870 if ((PackageLengthOp->Asl.ParseOpcode == PARSEOP_INTEGER) ||
871 (PackageLengthOp->Asl.ParseOpcode == PARSEOP_QWORDCONST))
873 if (PackageLengthOp->Asl.Value.Integer > PackageLength)
876 * Allow package length to be longer than the initializer
877 * list -- but if the length of initializer list is nonzero,
878 * issue a message since this is probably a coding error,
879 * even though technically legal.
881 if (PackageLength > 0)
883 AslError (ASL_REMARK, ASL_MSG_LIST_LENGTH_SHORT,
884 PackageLengthOp, NULL);
887 PackageLength = (UINT32) PackageLengthOp->Asl.Value.Integer;
889 else if (PackageLengthOp->Asl.Value.Integer < PackageLength)
892 * The package length is smaller than the length of the
893 * initializer list. This is an error as per the ACPI spec.
895 AslError (ASL_ERROR, ASL_MSG_LIST_LENGTH_LONG,
896 PackageLengthOp, NULL);
900 if (PackageLengthOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
903 * This is the case if the PackageLength was left empty - Package()
904 * The package length becomes the length of the initializer list
906 Op->Asl.Child->Asl.ParseOpcode = PARSEOP_INTEGER;
907 Op->Asl.Child->Asl.Value.Integer = PackageLength;
909 /* Set the AML opcode */
911 (void) OpcSetOptimalIntegerSize (Op->Asl.Child);
914 /* If not a variable-length package, check for a zero package length */
916 if ((PackageLengthOp->Asl.ParseOpcode == PARSEOP_INTEGER) ||
917 (PackageLengthOp->Asl.ParseOpcode == PARSEOP_QWORDCONST) ||
918 (PackageLengthOp->Asl.ParseOpcode == PARSEOP_ZERO) ||
919 (PackageLengthOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG))
923 /* No length AND no initializer list -- issue a remark */
925 AslError (ASL_REMARK, ASL_MSG_PACKAGE_LENGTH,
926 PackageLengthOp, NULL);
928 /* But go ahead and put the buffer length of zero into the AML */
933 * If the PackageLength is a constant <= 255, we can change the
934 * AML opcode from VarPackage to a simple (ACPI 1.0) Package opcode.
936 if (((Op->Asl.Child->Asl.ParseOpcode == PARSEOP_INTEGER) &&
937 (Op->Asl.Child->Asl.Value.Integer <= 255)) ||
938 (Op->Asl.Child->Asl.ParseOpcode == PARSEOP_ONE) ||
939 (Op->Asl.Child->Asl.ParseOpcode == PARSEOP_ONES)||
940 (Op->Asl.Child->Asl.ParseOpcode == PARSEOP_ZERO))
942 Op->Asl.AmlOpcode = AML_PACKAGE_OP;
943 Op->Asl.ParseOpcode = PARSEOP_PACKAGE;
946 * Just set the package size node to be the package length, regardless
947 * of whether it was previously an integer or a default_arg placeholder
949 PackageLengthOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
950 PackageLengthOp->Asl.AmlLength = 1;
951 PackageLengthOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
952 PackageLengthOp->Asl.Value.Integer = PackageLength;
955 /* Remaining nodes are handled via the tree walk */
959 /*******************************************************************************
961 * FUNCTION: OpnDoLoadTable
963 * PARAMETERS: Op - The parent parse node
967 * DESCRIPTION: Construct the AML operands for the LOADTABLE ASL keyword.
969 ******************************************************************************/
973 ACPI_PARSE_OBJECT *Op)
975 ACPI_PARSE_OBJECT *Next;
978 /* Opcode is parent node */
979 /* First child is the table signature */
981 Next = Op->Asl.Child;
983 /* Second child is the OEM ID*/
985 Next = Next->Asl.Next;
987 /* Third child is the OEM table ID */
989 Next = Next->Asl.Next;
991 /* Fourth child is the RootPath string */
993 Next = Next->Asl.Next;
994 if (Next->Asl.ParseOpcode == PARSEOP_ZERO)
996 Next->Asl.ParseOpcode = PARSEOP_STRING_LITERAL;
997 Next->Asl.Value.String = "\\";
998 Next->Asl.AmlLength = 2;
999 OpcGenerateAmlOpcode (Next);
1002 #ifdef ASL_FUTURE_IMPLEMENTATION
1004 /* TBD: NOT IMPLEMENTED */
1005 /* Fifth child is the [optional] ParameterPathString */
1006 /* Sixth child is the [optional] ParameterData */
1008 Next = Next->Asl.Next;
1009 if (Next->Asl.ParseOpcode == DEFAULT_ARG)
1011 Next->Asl.AmlLength = 1;
1012 Next->Asl.ParseOpcode = ZERO;
1013 OpcGenerateAmlOpcode (Next);
1017 Next = Next->Asl.Next;
1018 if (Next->Asl.ParseOpcode == DEFAULT_ARG)
1020 Next->Asl.AmlLength = 1;
1021 Next->Asl.ParseOpcode = ZERO;
1022 OpcGenerateAmlOpcode (Next);
1028 /*******************************************************************************
1030 * FUNCTION: OpnDoDefinitionBlock
1032 * PARAMETERS: Op - The parent parse node
1036 * DESCRIPTION: Construct the AML operands for the DEFINITIONBLOCK ASL keyword
1038 ******************************************************************************/
1041 OpnDoDefinitionBlock (
1042 ACPI_PARSE_OBJECT *Op)
1044 ACPI_PARSE_OBJECT *Child;
1052 * These nodes get stuffed into the table header. They are special
1053 * cased when the table is written to the output file.
1055 * Mark all of these nodes as non-usable so they won't get output
1059 /* Get AML filename. Use it if non-null */
1061 Child = Op->Asl.Child;
1062 if (Child->Asl.Value.Buffer &&
1063 *Child->Asl.Value.Buffer &&
1064 (AslGbl_UseDefaultAmlFilename))
1067 * The walk may traverse multiple definition blocks. Switch files
1068 * to ensure that the correct files are manipulated.
1070 FlSwitchFileSet (Op->Asl.Filename);
1073 * We will use the AML filename that is embedded in the source file
1074 * for the output filename.
1076 Filename = UtLocalCacheCalloc (strlen (AslGbl_DirectoryPath) +
1077 strlen ((char *) Child->Asl.Value.Buffer) + 1);
1079 /* Prepend the current directory path */
1081 strcpy (Filename, AslGbl_DirectoryPath);
1082 strcat (Filename, (char *) Child->Asl.Value.Buffer);
1084 AslGbl_OutputFilenamePrefix = Filename;
1085 UtConvertBackslashes (AslGbl_OutputFilenamePrefix);
1088 * Use the definition block file parameter instead of the input
1089 * filename. Since all files were opened previously, remove the
1090 * existing file and open a new file with the name of this
1091 * definiton block parameter. Since AML code generation has yet
1092 * to happen, the previous file can be removed without any impacts.
1094 FlCloseFile (ASL_FILE_AML_OUTPUT);
1095 FlDeleteFile (ASL_FILE_AML_OUTPUT);
1096 Status = FlOpenAmlOutputFile (AslGbl_OutputFilenamePrefix);
1097 if (ACPI_FAILURE (Status))
1099 AslError (ASL_ERROR, ASL_MSG_OUTPUT_FILE_OPEN, NULL, NULL);
1104 Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
1108 Child = Child->Asl.Next;
1109 Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
1110 if (Child->Asl.Value.String)
1112 AslGbl_FilesList->TableSignature = Child->Asl.Value.String;
1113 AslGbl_TableSignature = Child->Asl.Value.String;
1114 if (strlen (AslGbl_TableSignature) != ACPI_NAMESEG_SIZE)
1116 AslError (ASL_ERROR, ASL_MSG_TABLE_SIGNATURE, Child,
1117 "Length must be exactly 4 characters");
1120 for (i = 0; i < ACPI_NAMESEG_SIZE; i++)
1122 if (!isalnum ((int) AslGbl_TableSignature[i]))
1124 AslError (ASL_ERROR, ASL_MSG_TABLE_SIGNATURE, Child,
1125 "Contains non-alphanumeric characters");
1132 Child = Child->Asl.Next;
1133 Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
1136 * We used the revision to set the integer width earlier
1141 Child = Child->Asl.Next;
1142 Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
1143 if (Child->Asl.Value.String &&
1144 strlen (Child->Asl.Value.String) > ACPI_OEM_ID_SIZE)
1146 AslError (ASL_ERROR, ASL_MSG_OEM_ID, Child,
1147 "Length cannot exceed 6 characters");
1152 Child = Child->Asl.Next;
1153 Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
1154 if (Child->Asl.Value.String)
1156 Length = strlen (Child->Asl.Value.String);
1157 if (Length > ACPI_OEM_TABLE_ID_SIZE)
1159 AslError (ASL_ERROR, ASL_MSG_OEM_TABLE_ID, Child,
1160 "Length cannot exceed 8 characters");
1163 AslGbl_TableId = UtLocalCacheCalloc (Length + 1);
1164 strcpy (AslGbl_TableId, Child->Asl.Value.String);
1165 AslGbl_FilesList->TableId = AslGbl_TableId;
1168 * Convert anything non-alphanumeric to an underscore. This
1169 * allows us to use the TableID to generate unique C symbols.
1171 for (i = 0; i < Length; i++)
1173 if (!isalnum ((int) AslGbl_TableId[i]))
1175 AslGbl_TableId[i] = '_';
1182 Child = Child->Asl.Next;
1183 Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
1187 /*******************************************************************************
1189 * FUNCTION: UtGetArg
1191 * PARAMETERS: Op - Get an argument for this op
1192 * Argn - Nth argument to get
1194 * RETURN: The argument (as an Op object). NULL if argument does not exist
1196 * DESCRIPTION: Get the specified op's argument (peer)
1198 ******************************************************************************/
1202 ACPI_PARSE_OBJECT *Op,
1205 ACPI_PARSE_OBJECT *Arg = NULL;
1208 /* Get the requested argument object */
1210 Arg = Op->Asl.Child;
1214 Arg = Arg->Asl.Next;
1221 /*******************************************************************************
1223 * FUNCTION: OpnAttachNameToNode
1225 * PARAMETERS: Op - The parent parse node
1229 * DESCRIPTION: For the named ASL/AML operators, get the actual name from the
1230 * argument list and attach it to the parent node so that we
1231 * can get to it quickly later.
1233 ******************************************************************************/
1236 OpnAttachNameToNode (
1237 ACPI_PARSE_OBJECT *Op)
1239 ACPI_PARSE_OBJECT *Child = NULL;
1242 switch (Op->Asl.AmlOpcode)
1244 case AML_DATA_REGION_OP:
1247 case AML_EXTERNAL_OP:
1251 case AML_POWER_RESOURCE_OP:
1252 case AML_PROCESSOR_OP:
1253 case AML_THERMAL_ZONE_OP:
1257 Child = UtGetArg (Op, 0);
1262 Child = UtGetArg (Op, 1);
1265 case AML_CREATE_BIT_FIELD_OP:
1266 case AML_CREATE_BYTE_FIELD_OP:
1267 case AML_CREATE_WORD_FIELD_OP:
1268 case AML_CREATE_DWORD_FIELD_OP:
1269 case AML_CREATE_QWORD_FIELD_OP:
1271 Child = UtGetArg (Op, 2);
1274 case AML_CREATE_FIELD_OP:
1276 Child = UtGetArg (Op, 3);
1279 case AML_BANK_FIELD_OP:
1280 case AML_INDEX_FIELD_OP:
1292 UtAttachNamepathToOwner (Op, Child);
1297 /*******************************************************************************
1299 * FUNCTION: OpnGenerateAmlOperands
1301 * PARAMETERS: Op - The parent parse node
1305 * DESCRIPTION: Prepare nodes to be output as AML data and operands. The more
1306 * complex AML opcodes require processing of the child nodes
1307 * (arguments/operands).
1309 ******************************************************************************/
1312 OpnGenerateAmlOperands (
1313 ACPI_PARSE_OBJECT *Op)
1317 if (Op->Asl.AmlOpcode == AML_RAW_DATA_BYTE)
1322 switch (Op->Asl.ParseOpcode)
1324 case PARSEOP_DEFINITION_BLOCK:
1326 OpnDoDefinitionBlock (Op);
1329 case PARSEOP_METHOD:
1344 case PARSEOP_INDEXFIELD:
1346 OpnDoIndexField (Op);
1349 case PARSEOP_BANKFIELD:
1351 OpnDoBankField (Op);
1354 case PARSEOP_BUFFER:
1359 case PARSEOP_LOADTABLE:
1361 OpnDoLoadTable (Op);
1364 case PARSEOP_OPERATIONREGION:
1369 case PARSEOP_RESOURCETEMPLATE:
1371 RsDoResourceTemplate (Op);
1374 case PARSEOP_NAMESEG:
1375 case PARSEOP_NAMESTRING:
1376 case PARSEOP_METHODCALL:
1377 case PARSEOP_STRING_LITERAL:
1385 OpnAttachNameToNode (Op);