1 /*******************************************************************************
3 * Module Name: dmopcode - AML disassembler, specific AML opcodes
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"
156 #include "acinterp.h"
157 #include "acnamesp.h"
159 #include "acconvert.h"
161 #ifdef ACPI_DISASSEMBLER
163 #define _COMPONENT ACPI_CA_DEBUGGER
164 ACPI_MODULE_NAME ("dmopcode")
167 /* Local prototypes */
171 ACPI_PARSE_OBJECT
*Op
);
174 AcpiDmConvertToElseIf (
175 ACPI_PARSE_OBJECT
*Op
);
178 AcpiDmPromoteSubtree (
179 ACPI_PARSE_OBJECT
*StartOp
);
181 /*******************************************************************************
183 * FUNCTION: AcpiDmDisplayTargetPathname
185 * PARAMETERS: Op - Parse object
189 * DESCRIPTION: For AML opcodes that have a target operand, display the full
190 * pathname for the target, in a comment field. Handles Return()
193 ******************************************************************************/
196 AcpiDmDisplayTargetPathname (
197 ACPI_PARSE_OBJECT
*Op
)
199 ACPI_PARSE_OBJECT
*NextOp
;
200 ACPI_PARSE_OBJECT
*PrevOp
= NULL
;
202 const ACPI_OPCODE_INFO
*OpInfo
;
205 if (Op
->Common
.AmlOpcode
== AML_RETURN_OP
)
207 PrevOp
= Op
->Asl
.Value
.Arg
;
211 OpInfo
= AcpiPsGetOpcodeInfo (Op
->Common
.AmlOpcode
);
212 if (!(OpInfo
->Flags
& AML_HAS_TARGET
))
217 /* Target is the last Op in the arg list */
219 NextOp
= Op
->Asl
.Value
.Arg
;
223 NextOp
= PrevOp
->Asl
.Next
;
232 /* We must have a namepath AML opcode */
234 if (PrevOp
->Asl
.AmlOpcode
!= AML_INT_NAMEPATH_OP
)
239 /* A null string is the "no target specified" case */
241 if (!PrevOp
->Asl
.Value
.String
)
246 /* No node means "unresolved external reference" */
248 if (!PrevOp
->Asl
.Node
)
250 AcpiOsPrintf (" /* External reference */");
254 /* Ignore if path is already from the root */
256 if (*PrevOp
->Asl
.Value
.String
== '\\')
261 /* Now: we can get the full pathname */
263 Pathname
= AcpiNsGetExternalPathname (PrevOp
->Asl
.Node
);
269 AcpiOsPrintf (" /* %s */", Pathname
);
270 ACPI_FREE (Pathname
);
274 /*******************************************************************************
276 * FUNCTION: AcpiDmNotifyDescription
278 * PARAMETERS: Op - Name() parse object
282 * DESCRIPTION: Emit a description comment for the value associated with a
285 ******************************************************************************/
288 AcpiDmNotifyDescription (
289 ACPI_PARSE_OBJECT
*Op
)
291 ACPI_PARSE_OBJECT
*NextOp
;
292 ACPI_NAMESPACE_NODE
*Node
;
294 UINT8 Type
= ACPI_TYPE_ANY
;
297 /* The notify value is the second argument */
299 NextOp
= Op
->Asl
.Value
.Arg
;
300 NextOp
= NextOp
->Asl
.Next
;
302 switch (NextOp
->Common
.AmlOpcode
)
307 NotifyValue
= (UINT8
) NextOp
->Common
.AmlOpcode
;
312 NotifyValue
= (UINT8
) NextOp
->Asl
.Value
.Integer
;
320 * Attempt to get the namespace node so we can determine the object type.
321 * Some notify values are dependent on the object type (Device, Thermal,
330 AcpiOsPrintf (" // %s", AcpiUtGetNotifyName (NotifyValue
, Type
));
334 /*******************************************************************************
336 * FUNCTION: AcpiDmPredefinedDescription
338 * PARAMETERS: Op - Name() parse object
342 * DESCRIPTION: Emit a description comment for a predefined ACPI name.
343 * Used for iASL compiler only.
345 ******************************************************************************/
348 AcpiDmPredefinedDescription (
349 ACPI_PARSE_OBJECT
*Op
)
351 #ifdef ACPI_ASL_COMPILER
352 const AH_PREDEFINED_NAME
*Info
;
363 /* Ensure that the comment field is emitted only once */
365 if (Op
->Common
.DisasmFlags
& ACPI_PARSEOP_PREDEFINED_CHECKED
)
369 Op
->Common
.DisasmFlags
|= ACPI_PARSEOP_PREDEFINED_CHECKED
;
371 /* Predefined name must start with an underscore */
373 NameString
= ACPI_CAST_PTR (char, &Op
->Named
.Name
);
374 if (NameString
[0] != '_')
380 * Check for the special ACPI names:
381 * _ACd, _ALd, _EJd, _Exx, _Lxx, _Qxx, _Wxx, _T_a
382 * (where d=decimal_digit, x=hex_digit, a=anything)
384 * Convert these to the generic name for table lookup.
385 * Note: NameString is guaranteed to be upper case here.
388 (isdigit ((int) NameString
[3])); /* d */
390 (isxdigit ((int) NameString
[2]) && /* xx */
391 isxdigit ((int) NameString
[3]));
393 switch (NameString
[1])
397 if ((NameString
[2] == 'C') && (LastCharIsDigit
))
401 else if ((NameString
[2] == 'L') && (LastCharIsDigit
))
409 if ((NameString
[2] == 'J') && (LastCharIsDigit
))
413 else if (LastCharsAreHex
)
437 if (NameString
[2] == '_')
456 /* Match the name in the info table */
458 Info
= AcpiAhMatchPredefinedName (NameString
);
461 AcpiOsPrintf (" // %4.4s: %s",
462 NameString
, ACPI_CAST_PTR (char, Info
->Description
));
470 /*******************************************************************************
472 * FUNCTION: AcpiDmFieldPredefinedDescription
474 * PARAMETERS: Op - Parse object
478 * DESCRIPTION: Emit a description comment for a resource descriptor tag
479 * (which is a predefined ACPI name.) Used for iASL compiler only.
481 ******************************************************************************/
484 AcpiDmFieldPredefinedDescription (
485 ACPI_PARSE_OBJECT
*Op
)
487 #ifdef ACPI_ASL_COMPILER
488 ACPI_PARSE_OBJECT
*IndexOp
;
490 const ACPI_OPCODE_INFO
*OpInfo
;
491 const AH_PREDEFINED_NAME
*Info
;
499 /* Ensure that the comment field is emitted only once */
501 if (Op
->Common
.DisasmFlags
& ACPI_PARSEOP_PREDEFINED_CHECKED
)
505 Op
->Common
.DisasmFlags
|= ACPI_PARSEOP_PREDEFINED_CHECKED
;
508 * Op must be one of the Create* operators: CreateField, CreateBitField,
509 * CreateByteField, CreateWordField, CreateDwordField, CreateQwordField
511 OpInfo
= AcpiPsGetOpcodeInfo (Op
->Common
.AmlOpcode
);
512 if (!(OpInfo
->Flags
& AML_CREATE
))
517 /* Second argument is the Index argument */
519 IndexOp
= Op
->Common
.Value
.Arg
;
520 IndexOp
= IndexOp
->Common
.Next
;
522 /* Index argument must be a namepath */
524 if (IndexOp
->Common
.AmlOpcode
!= AML_INT_NAMEPATH_OP
)
529 /* Major cheat: We previously put the Tag ptr in the Node field */
531 Tag
= ACPI_CAST_PTR (char, IndexOp
->Common
.Node
);
532 if (!Tag
|| (*Tag
== 0))
537 /* Is the tag a predefined name? */
539 Info
= AcpiAhMatchPredefinedName (Tag
);
542 /* Not a predefined name (does not start with underscore) */
547 AcpiOsPrintf (" // %4.4s: %s", Tag
,
548 ACPI_CAST_PTR (char, Info
->Description
));
550 /* String contains the prefix path, free it */
552 ACPI_FREE (IndexOp
->Common
.Value
.String
);
553 IndexOp
->Common
.Value
.String
= NULL
;
560 /*******************************************************************************
562 * FUNCTION: AcpiDmMethodFlags
564 * PARAMETERS: Op - Method Object to be examined
568 * DESCRIPTION: Decode control method flags
570 ******************************************************************************/
574 ACPI_PARSE_OBJECT
*Op
)
580 /* The next Op contains the flags */
582 Op
= AcpiPsGetDepthNext (NULL
, Op
);
583 Flags
= (UINT8
) Op
->Common
.Value
.Integer
;
586 /* Mark the Op as completed */
588 Op
->Common
.DisasmFlags
|= ACPI_PARSEOP_IGNORE
;
590 /* 1) Method argument count */
592 AcpiOsPrintf (", %u, ", Args
);
594 /* 2) Serialize rule */
598 AcpiOsPrintf ("Not");
601 AcpiOsPrintf ("Serialized");
607 AcpiOsPrintf (", %u", Flags
>> 4);
612 /*******************************************************************************
614 * FUNCTION: AcpiDmFieldFlags
616 * PARAMETERS: Op - Field Object to be examined
620 * DESCRIPTION: Decode Field definition flags
622 ******************************************************************************/
626 ACPI_PARSE_OBJECT
*Op
)
631 Op
= Op
->Common
.Next
;
632 Flags
= (UINT8
) Op
->Common
.Value
.Integer
;
634 /* Mark the Op as completed */
636 Op
->Common
.DisasmFlags
|= ACPI_PARSEOP_IGNORE
;
638 AcpiOsPrintf ("%s, ", AcpiGbl_AccessTypes
[Flags
& 0x07]);
639 AcpiOsPrintf ("%s, ", AcpiGbl_LockRule
[(Flags
& 0x10) >> 4]);
640 AcpiOsPrintf ("%s)", AcpiGbl_UpdateRules
[(Flags
& 0x60) >> 5]);
644 /*******************************************************************************
646 * FUNCTION: AcpiDmAddressSpace
648 * PARAMETERS: SpaceId - ID to be translated
652 * DESCRIPTION: Decode a SpaceId to an AddressSpaceKeyword
654 ******************************************************************************/
661 if (SpaceId
>= ACPI_NUM_PREDEFINED_REGIONS
)
665 AcpiOsPrintf ("FFixedHW, ");
669 AcpiOsPrintf ("0x%.2X, ", SpaceId
);
674 AcpiOsPrintf ("%s, ", AcpiGbl_RegionTypes
[SpaceId
]);
679 /*******************************************************************************
681 * FUNCTION: AcpiDmRegionFlags
683 * PARAMETERS: Op - Object to be examined
687 * DESCRIPTION: Decode OperationRegion flags
689 ******************************************************************************/
693 ACPI_PARSE_OBJECT
*Op
)
696 /* The next Op contains the SpaceId */
698 Op
= AcpiPsGetDepthNext (NULL
, Op
);
700 /* Mark the Op as completed */
702 Op
->Common
.DisasmFlags
|= ACPI_PARSEOP_IGNORE
;
705 AcpiDmAddressSpace ((UINT8
) Op
->Common
.Value
.Integer
);
709 /*******************************************************************************
711 * FUNCTION: AcpiDmMatchOp
713 * PARAMETERS: Op - Match Object to be examined
717 * DESCRIPTION: Decode Match opcode operands
719 ******************************************************************************/
723 ACPI_PARSE_OBJECT
*Op
)
725 ACPI_PARSE_OBJECT
*NextOp
;
728 NextOp
= AcpiPsGetDepthNext (NULL
, Op
);
729 NextOp
= NextOp
->Common
.Next
;
733 /* Handle partial tree during single-step */
738 /* Mark the two nodes that contain the encoding for the match keywords */
740 NextOp
->Common
.DisasmOpcode
= ACPI_DASM_MATCHOP
;
742 NextOp
= NextOp
->Common
.Next
;
743 NextOp
= NextOp
->Common
.Next
;
744 NextOp
->Common
.DisasmOpcode
= ACPI_DASM_MATCHOP
;
748 /*******************************************************************************
750 * FUNCTION: AcpiDmMatchKeyword
752 * PARAMETERS: Op - Match Object to be examined
756 * DESCRIPTION: Decode Match opcode operands
758 ******************************************************************************/
762 ACPI_PARSE_OBJECT
*Op
)
765 if (((UINT32
) Op
->Common
.Value
.Integer
) > ACPI_MAX_MATCH_OPCODE
)
767 AcpiOsPrintf ("/* Unknown Match Keyword encoding */");
772 AcpiGbl_MatchOps
[(ACPI_SIZE
) Op
->Common
.Value
.Integer
]);
777 /*******************************************************************************
779 * FUNCTION: AcpiDmDisassembleOneOp
781 * PARAMETERS: WalkState - Current walk info
782 * Info - Parse tree walk info
783 * Op - Op that is to be printed
787 * DESCRIPTION: Disassemble a single AML opcode
789 ******************************************************************************/
792 AcpiDmDisassembleOneOp (
793 ACPI_WALK_STATE
*WalkState
,
794 ACPI_OP_WALK_INFO
*Info
,
795 ACPI_PARSE_OBJECT
*Op
)
797 const ACPI_OPCODE_INFO
*OpInfo
= NULL
;
800 ACPI_PARSE_OBJECT
*Child
;
803 const AH_DEVICE_ID
*IdInfo
;
808 AcpiOsPrintf ("<NULL OP PTR>");
812 if (Op
->Common
.DisasmFlags
& ACPI_PARSEOP_ELSEIF
)
814 return; /* ElseIf macro was already emitted */
817 switch (Op
->Common
.DisasmOpcode
)
819 case ACPI_DASM_MATCHOP
:
821 AcpiDmMatchKeyword (Op
);
824 case ACPI_DASM_LNOT_SUFFIX
:
826 if (!AcpiGbl_CstyleDisassembly
)
828 switch (Op
->Common
.AmlOpcode
)
830 case AML_LOGICAL_EQUAL_OP
:
831 AcpiOsPrintf ("LNotEqual");
834 case AML_LOGICAL_GREATER_OP
:
835 AcpiOsPrintf ("LLessEqual");
838 case AML_LOGICAL_LESS_OP
:
839 AcpiOsPrintf ("LGreaterEqual");
847 Op
->Common
.DisasmOpcode
= 0;
848 Op
->Common
.DisasmFlags
|= ACPI_PARSEOP_IGNORE
;
855 OpInfo
= AcpiPsGetOpcodeInfo (Op
->Common
.AmlOpcode
);
857 /* The op and arguments */
859 switch (Op
->Common
.AmlOpcode
)
861 case AML_LOGICAL_NOT_OP
:
863 Child
= Op
->Common
.Value
.Arg
;
864 if ((Child
->Common
.AmlOpcode
== AML_LOGICAL_EQUAL_OP
) ||
865 (Child
->Common
.AmlOpcode
== AML_LOGICAL_GREATER_OP
) ||
866 (Child
->Common
.AmlOpcode
== AML_LOGICAL_LESS_OP
))
868 Child
->Common
.DisasmOpcode
= ACPI_DASM_LNOT_SUFFIX
;
869 Op
->Common
.DisasmOpcode
= ACPI_DASM_LNOT_PREFIX
;
873 AcpiOsPrintf ("%s", OpInfo
->Name
);
879 AcpiOsPrintf ("0x%2.2X", (UINT32
) Op
->Common
.Value
.Integer
);
884 if (Op
->Common
.DisasmOpcode
== ACPI_DASM_EISAID
)
886 AcpiDmDecompressEisaId ((UINT32
) Op
->Common
.Value
.Integer
);
890 AcpiOsPrintf ("0x%4.4X", (UINT32
) Op
->Common
.Value
.Integer
);
896 if (Op
->Common
.DisasmOpcode
== ACPI_DASM_EISAID
)
898 AcpiDmDecompressEisaId ((UINT32
) Op
->Common
.Value
.Integer
);
902 AcpiOsPrintf ("0x%8.8X", (UINT32
) Op
->Common
.Value
.Integer
);
908 AcpiOsPrintf ("0x%8.8X%8.8X",
909 ACPI_FORMAT_UINT64 (Op
->Common
.Value
.Integer
));
914 AcpiUtPrintString (Op
->Common
.Value
.String
, ACPI_UINT16_MAX
);
916 /* For _HID/_CID strings, attempt to output a descriptive comment */
918 if (Op
->Common
.DisasmOpcode
== ACPI_DASM_HID_STRING
)
920 /* If we know about the ID, emit the description */
922 IdInfo
= AcpiAhMatchHardwareId (Op
->Common
.Value
.String
);
925 AcpiOsPrintf (" /* %s */", IdInfo
->Description
);
932 * Determine the type of buffer. We can have one of the following:
934 * 1) ResourceTemplate containing Resource Descriptors.
935 * 2) Unicode String buffer
936 * 3) ASCII String buffer
937 * 4) Raw data buffer (if none of the above)
939 * Since there are no special AML opcodes to differentiate these
940 * types of buffers, we have to closely look at the data in the
941 * buffer to determine the type.
943 if (!AcpiGbl_NoResourceDisassembly
)
945 Status
= AcpiDmIsResourceTemplate (WalkState
, Op
);
946 if (ACPI_SUCCESS (Status
))
948 Op
->Common
.DisasmOpcode
= ACPI_DASM_RESOURCE
;
949 AcpiOsPrintf ("ResourceTemplate");
952 else if (Status
== AE_AML_NO_RESOURCE_END_TAG
)
955 "/**** Is ResourceTemplate, "
956 "but EndTag not at buffer end ****/ ");
960 if (AcpiDmIsUuidBuffer (Op
))
962 Op
->Common
.DisasmOpcode
= ACPI_DASM_UUID
;
963 AcpiOsPrintf ("ToUUID (");
965 else if (AcpiDmIsUnicodeBuffer (Op
))
967 Op
->Common
.DisasmOpcode
= ACPI_DASM_UNICODE
;
968 AcpiOsPrintf ("Unicode (");
970 else if (AcpiDmIsStringBuffer (Op
))
972 Op
->Common
.DisasmOpcode
= ACPI_DASM_STRING
;
973 AcpiOsPrintf ("Buffer");
975 else if (AcpiDmIsPldBuffer (Op
))
977 Op
->Common
.DisasmOpcode
= ACPI_DASM_PLD_METHOD
;
978 AcpiOsPrintf ("ToPLD (");
982 Op
->Common
.DisasmOpcode
= ACPI_DASM_BUFFER
;
983 AcpiOsPrintf ("Buffer");
987 case AML_INT_NAMEPATH_OP
:
989 AcpiDmNamestring (Op
->Common
.Value
.Name
);
992 case AML_INT_NAMEDFIELD_OP
:
994 Length
= AcpiDmDumpName (Op
->Named
.Name
);
997 ASL_CV_PRINT_ONE_COMMENT (Op
, AML_NAMECOMMENT
, NULL
, 0);
998 AcpiOsPrintf ("%*.s %u", (unsigned) (5 - Length
), " ",
999 (UINT32
) Op
->Common
.Value
.Integer
);
1001 AcpiDmCommaIfFieldMember (Op
);
1003 Info
->BitOffset
+= (UINT32
) Op
->Common
.Value
.Integer
;
1006 case AML_INT_RESERVEDFIELD_OP
:
1008 /* Offset() -- Must account for previous offsets */
1010 Offset
= (UINT32
) Op
->Common
.Value
.Integer
;
1011 Info
->BitOffset
+= Offset
;
1013 if (Info
->BitOffset
% 8 == 0)
1015 AcpiOsPrintf ("Offset (0x%.2X)", ACPI_DIV_8 (Info
->BitOffset
));
1019 AcpiOsPrintf (" , %u", Offset
);
1022 AcpiDmCommaIfFieldMember (Op
);
1025 case AML_INT_ACCESSFIELD_OP
:
1026 case AML_INT_EXTACCESSFIELD_OP
:
1028 AcpiOsPrintf ("AccessAs (%s, ",
1029 AcpiGbl_AccessTypes
[(UINT32
) (Op
->Common
.Value
.Integer
& 0x7)]);
1031 AcpiDmDecodeAttribute ((UINT8
) (Op
->Common
.Value
.Integer
>> 8));
1033 if (Op
->Common
.AmlOpcode
== AML_INT_EXTACCESSFIELD_OP
)
1035 AcpiOsPrintf (" (0x%2.2X)", (unsigned)
1036 ((Op
->Common
.Value
.Integer
>> 16) & 0xFF));
1040 AcpiDmCommaIfFieldMember (Op
);
1041 ASL_CV_PRINT_ONE_COMMENT (Op
, AML_COMMENT_END_NODE
, NULL
, 0);
1044 case AML_INT_CONNECTION_OP
:
1046 * Two types of Connection() - one with a buffer object, the
1047 * other with a namestring that points to a buffer object.
1049 AcpiOsPrintf ("Connection (");
1050 Child
= Op
->Common
.Value
.Arg
;
1052 if (Child
->Common
.AmlOpcode
== AML_INT_BYTELIST_OP
)
1054 AcpiOsPrintf ("\n");
1056 Aml
= Child
->Named
.Data
;
1057 Length
= (UINT32
) Child
->Common
.Value
.Integer
;
1060 Info
->MappingOp
= Op
;
1061 Op
->Common
.DisasmOpcode
= ACPI_DASM_RESOURCE
;
1063 AcpiDmResourceTemplate (Info
, Op
->Common
.Parent
, Aml
, Length
);
1066 AcpiDmIndent (Info
->Level
);
1070 AcpiDmNamestring (Child
->Common
.Value
.Name
);
1074 AcpiDmCommaIfFieldMember (Op
);
1075 ASL_CV_PRINT_ONE_COMMENT (Op
, AML_COMMENT_END_NODE
, NULL
, 0);
1076 ASL_CV_PRINT_ONE_COMMENT (Op
, AMLCOMMENT_INLINE
, NULL
, 0);
1077 AcpiOsPrintf ("\n");
1079 Op
->Common
.DisasmFlags
|= ACPI_PARSEOP_IGNORE
; /* for now, ignore in AcpiDmAscendingOp */
1080 Child
->Common
.DisasmFlags
|= ACPI_PARSEOP_IGNORE
;
1083 case AML_INT_BYTELIST_OP
:
1085 AcpiDmByteList (Info
, Op
);
1088 case AML_INT_METHODCALL_OP
:
1090 Op
= AcpiPsGetDepthNext (NULL
, Op
);
1091 Op
->Common
.DisasmFlags
|= ACPI_PARSEOP_IGNORE
;
1093 AcpiDmNamestring (Op
->Common
.Value
.Name
);
1098 if (Op
->Common
.DisasmOpcode
== ACPI_DASM_SWITCH
)
1100 AcpiOsPrintf ("%s", "Switch");
1104 AcpiOsPrintf ("%s", OpInfo
->Name
);
1109 if (Op
->Common
.DisasmOpcode
== ACPI_DASM_CASE
)
1111 AcpiOsPrintf ("%s", "Case");
1115 AcpiOsPrintf ("%s", OpInfo
->Name
);
1120 AcpiDmConvertToElseIf (Op
);
1123 case AML_EXTERNAL_OP
:
1125 if (AcpiGbl_DmEmitExternalOpcodes
)
1127 AcpiDmEmitExternal (Op
, AcpiPsGetArg(Op
, 0));
1134 /* Just get the opcode name and print it */
1136 AcpiOsPrintf ("%s", OpInfo
->Name
);
1139 #ifdef ACPI_DEBUGGER
1141 if ((Op
->Common
.AmlOpcode
== AML_INT_RETURN_VALUE_OP
) &&
1143 (WalkState
->Results
) &&
1144 (WalkState
->ResultCount
))
1146 AcpiDbDecodeInternalObject (
1147 WalkState
->Results
->Results
.ObjDesc
[
1148 (WalkState
->ResultCount
- 1) %
1149 ACPI_RESULTS_FRAME_OBJ_NUM
]);
1158 /*******************************************************************************
1160 * FUNCTION: AcpiDmConvertToElseIf
1162 * PARAMETERS: OriginalElseOp - ELSE Object to be examined
1164 * RETURN: None. Emits either an "Else" or an "ElseIf" ASL operator.
1166 * DESCRIPTION: Detect and convert an If..Else..If sequence to If..ElseIf
1170 * This If..Else..If nested sequence:
1184 * Is converted to this simpler If..ElseIf sequence:
1190 * ElseIf (Arg0 == 2)
1195 * NOTE: There is no actual ElseIf AML opcode. ElseIf is essentially an ASL
1196 * macro that emits an Else opcode followed by an If opcode. This function
1197 * reverses these AML sequences back to an ElseIf macro where possible. This
1198 * can make the disassembled ASL code simpler and more like the original code.
1200 ******************************************************************************/
1203 AcpiDmConvertToElseIf (
1204 ACPI_PARSE_OBJECT
*OriginalElseOp
)
1206 ACPI_PARSE_OBJECT
*IfOp
;
1207 ACPI_PARSE_OBJECT
*ElseOp
;
1211 * To be able to perform the conversion, two conditions must be satisfied:
1212 * 1) The first child of the Else must be an If statement.
1213 * 2) The If block can only be followed by an Else block and these must
1214 * be the only blocks under the original Else.
1216 IfOp
= OriginalElseOp
->Common
.Value
.Arg
;
1219 (IfOp
->Common
.AmlOpcode
!= AML_IF_OP
) ||
1220 (IfOp
->Asl
.Next
&& (IfOp
->Asl
.Next
->Common
.AmlOpcode
!= AML_ELSE_OP
)))
1222 /* Not a proper Else..If sequence, cannot convert to ElseIf */
1224 if (OriginalElseOp
->Common
.DisasmOpcode
== ACPI_DASM_DEFAULT
)
1226 AcpiOsPrintf ("%s", "Default");
1230 AcpiOsPrintf ("%s", "Else");
1234 /* Cannot have anything following the If...Else block */
1236 ElseOp
= IfOp
->Common
.Next
;
1237 if (ElseOp
&& ElseOp
->Common
.Next
)
1239 if (OriginalElseOp
->Common
.DisasmOpcode
== ACPI_DASM_DEFAULT
)
1241 AcpiOsPrintf ("%s", "Default");
1245 AcpiOsPrintf ("%s", "Else");
1249 if (OriginalElseOp
->Common
.DisasmOpcode
== ACPI_DASM_DEFAULT
)
1252 * There is an ElseIf but in this case the Else is actually
1253 * a Default block for a Switch/Case statement. No conversion.
1255 AcpiOsPrintf ("%s", "Default");
1259 if (OriginalElseOp
->Common
.DisasmOpcode
== ACPI_DASM_CASE
)
1262 * This ElseIf is actually a Case block for a Switch/Case
1263 * statement. Print Case but do not return so that we can
1264 * promote the subtree and keep the indentation level.
1266 AcpiOsPrintf ("%s", "Case");
1270 /* Emit ElseIf, mark the IF as now an ELSEIF */
1272 AcpiOsPrintf ("%s", "ElseIf");
1275 IfOp
->Common
.DisasmFlags
|= ACPI_PARSEOP_ELSEIF
;
1277 /* The IF parent will now be the same as the original ELSE parent */
1279 IfOp
->Common
.Parent
= OriginalElseOp
->Common
.Parent
;
1282 * Update the NEXT pointers to restructure the parse tree, essentially
1283 * promoting an If..Else block up to the same level as the original
1286 * Check if the IF has a corresponding ELSE peer
1288 ElseOp
= IfOp
->Common
.Next
;
1290 (ElseOp
->Common
.AmlOpcode
== AML_ELSE_OP
))
1292 /* If an ELSE matches the IF, promote it also */
1294 ElseOp
->Common
.Parent
= OriginalElseOp
->Common
.Parent
;
1296 /* Promote the entire block under the ElseIf (All Next OPs) */
1298 AcpiDmPromoteSubtree (OriginalElseOp
);
1302 /* Otherwise, set the IF NEXT to the original ELSE NEXT */
1304 IfOp
->Common
.Next
= OriginalElseOp
->Common
.Next
;
1307 /* Detach the child IF block from the original ELSE */
1309 OriginalElseOp
->Common
.Value
.Arg
= NULL
;
1311 /* Ignore the original ELSE from now on */
1313 OriginalElseOp
->Common
.DisasmFlags
|= ACPI_PARSEOP_IGNORE
;
1314 OriginalElseOp
->Common
.DisasmOpcode
= ACPI_DASM_LNOT_PREFIX
;
1316 /* Insert IF (now ELSEIF) as next peer of the original ELSE */
1318 OriginalElseOp
->Common
.Next
= IfOp
;
1322 /*******************************************************************************
1324 * FUNCTION: AcpiDmPromoteSubtree
1326 * PARAMETERS: StartOpOp - Original parent of the entire subtree
1330 * DESCRIPTION: Promote an entire parse subtree up one level.
1332 ******************************************************************************/
1335 AcpiDmPromoteSubtree (
1336 ACPI_PARSE_OBJECT
*StartOp
)
1338 ACPI_PARSE_OBJECT
*Op
;
1339 ACPI_PARSE_OBJECT
*ParentOp
;
1342 /* New parent for subtree elements */
1344 ParentOp
= StartOp
->Common
.Parent
;
1346 /* First child starts the subtree */
1348 Op
= StartOp
->Common
.Value
.Arg
;
1350 /* Walk the top-level elements of the subtree */
1354 Op
->Common
.Parent
= ParentOp
;
1355 if (!Op
->Common
.Next
)
1357 /* Last Op in list, update its next field */
1359 Op
->Common
.Next
= StartOp
->Common
.Next
;
1362 Op
= Op
->Common
.Next
;
1366 #endif /* ACPI_DISASSEMBLER */