1 /******************************************************************************
3 * Module Name: utdecode - Utility decoding routines (value-to-string)
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 *****************************************************************************/
153 #include "accommon.h"
154 #include "acnamesp.h"
157 #define _COMPONENT ACPI_UTILITIES
158 ACPI_MODULE_NAME ("utdecode")
162 * Properties of the ACPI Object Types, both internal and external.
163 * The table is indexed by values of ACPI_OBJECT_TYPE
165 const UINT8 AcpiGbl_NsProperties[ACPI_NUM_NS_TYPES] =
167 ACPI_NS_NORMAL, /* 00 Any */
168 ACPI_NS_NORMAL, /* 01 Number */
169 ACPI_NS_NORMAL, /* 02 String */
170 ACPI_NS_NORMAL, /* 03 Buffer */
171 ACPI_NS_NORMAL, /* 04 Package */
172 ACPI_NS_NORMAL, /* 05 FieldUnit */
173 ACPI_NS_NEWSCOPE, /* 06 Device */
174 ACPI_NS_NORMAL, /* 07 Event */
175 ACPI_NS_NEWSCOPE, /* 08 Method */
176 ACPI_NS_NORMAL, /* 09 Mutex */
177 ACPI_NS_NORMAL, /* 10 Region */
178 ACPI_NS_NEWSCOPE, /* 11 Power */
179 ACPI_NS_NEWSCOPE, /* 12 Processor */
180 ACPI_NS_NEWSCOPE, /* 13 Thermal */
181 ACPI_NS_NORMAL, /* 14 BufferField */
182 ACPI_NS_NORMAL, /* 15 DdbHandle */
183 ACPI_NS_NORMAL, /* 16 Debug Object */
184 ACPI_NS_NORMAL, /* 17 DefField */
185 ACPI_NS_NORMAL, /* 18 BankField */
186 ACPI_NS_NORMAL, /* 19 IndexField */
187 ACPI_NS_NORMAL, /* 20 Reference */
188 ACPI_NS_NORMAL, /* 21 Alias */
189 ACPI_NS_NORMAL, /* 22 MethodAlias */
190 ACPI_NS_NORMAL, /* 23 Notify */
191 ACPI_NS_NORMAL, /* 24 Address Handler */
192 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
193 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
194 ACPI_NS_NEWSCOPE, /* 27 Scope */
195 ACPI_NS_NORMAL, /* 28 Extra */
196 ACPI_NS_NORMAL, /* 29 Data */
197 ACPI_NS_NORMAL /* 30 Invalid */
201 /*******************************************************************************
203 * FUNCTION: AcpiUtGetRegionName
205 * PARAMETERS: Space ID - ID for the region
207 * RETURN: Decoded region SpaceId name
209 * DESCRIPTION: Translate a Space ID into a name string (Debug only)
211 ******************************************************************************/
213 /* Region type decoding */
215 const char *AcpiGbl_RegionTypes[ACPI_NUM_PREDEFINED_REGIONS] =
217 "SystemMemory", /* 0x00 */
218 "SystemIO", /* 0x01 */
219 "PCI_Config", /* 0x02 */
220 "EmbeddedControl", /* 0x03 */
222 "SystemCMOS", /* 0x05 */
223 "PCIBARTarget", /* 0x06 */
225 "GeneralPurposeIo", /* 0x08 */
226 "GenericSerialBus", /* 0x09 */
227 "PlatformCommChannel"/* 0x0A */
232 AcpiUtGetRegionName (
236 if (SpaceId >= ACPI_USER_REGION_BEGIN)
238 return ("UserDefinedRegion");
240 else if (SpaceId == ACPI_ADR_SPACE_DATA_TABLE)
242 return ("DataTable");
244 else if (SpaceId == ACPI_ADR_SPACE_FIXED_HARDWARE)
246 return ("FunctionalFixedHW");
248 else if (SpaceId >= ACPI_NUM_PREDEFINED_REGIONS)
250 return ("InvalidSpaceId");
253 return (AcpiGbl_RegionTypes[SpaceId]);
257 /*******************************************************************************
259 * FUNCTION: AcpiUtGetEventName
261 * PARAMETERS: EventId - Fixed event ID
263 * RETURN: Decoded event ID name
265 * DESCRIPTION: Translate a Event ID into a name string (Debug only)
267 ******************************************************************************/
269 /* Event type decoding */
271 static const char *AcpiGbl_EventTypes[ACPI_NUM_FIXED_EVENTS] =
286 if (EventId > ACPI_EVENT_MAX)
288 return ("InvalidEventID");
291 return (AcpiGbl_EventTypes[EventId]);
295 /*******************************************************************************
297 * FUNCTION: AcpiUtGetTypeName
299 * PARAMETERS: Type - An ACPI object type
301 * RETURN: Decoded ACPI object type name
303 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
305 ******************************************************************************/
308 * Elements of AcpiGbl_NsTypeNames below must match
309 * one-to-one with values of ACPI_OBJECT_TYPE
311 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
312 * when stored in a table it really means that we have thus far seen no
313 * evidence to indicate what type is actually going to be stored for this
316 static const char AcpiGbl_BadType[] = "UNDEFINED";
318 /* Printable names of the ACPI object types */
320 static const char *AcpiGbl_NsTypeNames[] =
327 /* 05 */ "FieldUnit",
334 /* 12 */ "Processor",
336 /* 14 */ "BufferField",
337 /* 15 */ "DdbHandle",
338 /* 16 */ "DebugObject",
339 /* 17 */ "RegionField",
340 /* 18 */ "BankField",
341 /* 19 */ "IndexField",
342 /* 20 */ "Reference",
344 /* 22 */ "MethodAlias",
346 /* 24 */ "AddrHandler",
347 /* 25 */ "ResourceDesc",
348 /* 26 */ "ResourceFld",
358 ACPI_OBJECT_TYPE Type)
361 if (Type > ACPI_TYPE_INVALID)
363 return (AcpiGbl_BadType);
366 return (AcpiGbl_NsTypeNames[Type]);
371 AcpiUtGetObjectTypeName (
372 ACPI_OPERAND_OBJECT *ObjDesc)
374 ACPI_FUNCTION_TRACE (UtGetObjectTypeName);
379 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Null Object Descriptor\n"));
380 return_STR ("[NULL Object Descriptor]");
383 /* These descriptor types share a common area */
385 if ((ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) != ACPI_DESC_TYPE_OPERAND) &&
386 (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) != ACPI_DESC_TYPE_NAMED))
388 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
389 "Invalid object descriptor type: 0x%2.2X [%s] (%p)\n",
390 ACPI_GET_DESCRIPTOR_TYPE (ObjDesc),
391 AcpiUtGetDescriptorName (ObjDesc), ObjDesc));
393 return_STR ("Invalid object");
396 return_STR (AcpiUtGetTypeName (ObjDesc->Common.Type));
400 /*******************************************************************************
402 * FUNCTION: AcpiUtGetNodeName
404 * PARAMETERS: Object - A namespace node
406 * RETURN: ASCII name of the node
408 * DESCRIPTION: Validate the node and return the node's ACPI name.
410 ******************************************************************************/
416 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) Object;
419 /* Must return a string of exactly 4 characters == ACPI_NAMESEG_SIZE */
426 /* Check for Root node */
428 if ((Object == ACPI_ROOT_OBJECT) ||
429 (Object == AcpiGbl_RootNode))
434 /* Descriptor must be a namespace node */
436 if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED)
442 * Ensure name is valid. The name was validated/repaired when the node
443 * was created, but make sure it has not been corrupted.
445 AcpiUtRepairName (Node->Name.Ascii);
447 /* Return the name */
449 return (Node->Name.Ascii);
453 /*******************************************************************************
455 * FUNCTION: AcpiUtGetDescriptorName
457 * PARAMETERS: Object - An ACPI object
459 * RETURN: Decoded name of the descriptor type
461 * DESCRIPTION: Validate object and return the descriptor type
463 ******************************************************************************/
465 /* Printable names of object descriptor types */
467 static const char *AcpiGbl_DescTypeNames[] =
469 /* 00 */ "Not a Descriptor",
470 /* 01 */ "Cached Object",
471 /* 02 */ "State-Generic",
472 /* 03 */ "State-Update",
473 /* 04 */ "State-Package",
474 /* 05 */ "State-Control",
475 /* 06 */ "State-RootParseScope",
476 /* 07 */ "State-ParseScope",
477 /* 08 */ "State-WalkScope",
478 /* 09 */ "State-Result",
479 /* 10 */ "State-Notify",
480 /* 11 */ "State-Thread",
481 /* 12 */ "Tree Walk State",
482 /* 13 */ "Parse Tree Op",
483 /* 14 */ "Operand Object",
484 /* 15 */ "Namespace Node"
489 AcpiUtGetDescriptorName (
495 return ("NULL OBJECT");
498 if (ACPI_GET_DESCRIPTOR_TYPE (Object) > ACPI_DESC_TYPE_MAX)
500 return ("Not a Descriptor");
503 return (AcpiGbl_DescTypeNames[ACPI_GET_DESCRIPTOR_TYPE (Object)]);
507 /*******************************************************************************
509 * FUNCTION: AcpiUtGetReferenceName
511 * PARAMETERS: Object - An ACPI reference object
513 * RETURN: Decoded name of the type of reference
515 * DESCRIPTION: Decode a reference object sub-type to a string.
517 ******************************************************************************/
519 /* Printable names of reference object sub-types */
521 static const char *AcpiGbl_RefClassNames[] =
527 /* 04 */ "DdbHandle",
528 /* 05 */ "Named Object",
533 AcpiUtGetReferenceName (
534 ACPI_OPERAND_OBJECT *Object)
539 return ("NULL Object");
542 if (ACPI_GET_DESCRIPTOR_TYPE (Object) != ACPI_DESC_TYPE_OPERAND)
544 return ("Not an Operand object");
547 if (Object->Common.Type != ACPI_TYPE_LOCAL_REFERENCE)
549 return ("Not a Reference object");
552 if (Object->Reference.Class > ACPI_REFCLASS_MAX)
554 return ("Unknown Reference class");
557 return (AcpiGbl_RefClassNames[Object->Reference.Class]);
561 /*******************************************************************************
563 * FUNCTION: AcpiUtGetMutexName
565 * PARAMETERS: MutexId - The predefined ID for this mutex.
567 * RETURN: Decoded name of the internal mutex
569 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
571 ******************************************************************************/
573 /* Names for internal mutex objects, used for debug output */
575 static const char *AcpiGbl_MutexNames[ACPI_NUM_MUTEX] =
577 "ACPI_MTX_Interpreter",
578 "ACPI_MTX_Namespace",
590 if (MutexId > ACPI_MAX_MUTEX)
592 return ("Invalid Mutex ID");
595 return (AcpiGbl_MutexNames[MutexId]);
599 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
602 * Strings and procedures used for debug only
605 /*******************************************************************************
607 * FUNCTION: AcpiUtGetNotifyName
609 * PARAMETERS: NotifyValue - Value from the Notify() request
611 * RETURN: Decoded name for the notify value
613 * DESCRIPTION: Translate a Notify Value to a notify namestring.
615 ******************************************************************************/
617 /* Names for Notify() values, used for debug output */
619 static const char *AcpiGbl_GenericNotify[ACPI_GENERIC_NOTIFY_MAX + 1] =
621 /* 00 */ "Bus Check",
622 /* 01 */ "Device Check",
623 /* 02 */ "Device Wake",
624 /* 03 */ "Eject Request",
625 /* 04 */ "Device Check Light",
626 /* 05 */ "Frequency Mismatch",
627 /* 06 */ "Bus Mode Mismatch",
628 /* 07 */ "Power Fault",
629 /* 08 */ "Capabilities Check",
630 /* 09 */ "Device PLD Check",
632 /* 0B */ "System Locality Update",
633 /* 0C */ "Reserved (was previously Shutdown Request)", /* Reserved in ACPI 6.0 */
634 /* 0D */ "System Resource Affinity Update",
635 /* 0E */ "Heterogeneous Memory Attributes Update", /* ACPI 6.2 */
636 /* 0F */ "Error Disconnect Recover" /* ACPI 6.3 */
639 static const char *AcpiGbl_DeviceNotify[5] =
641 /* 80 */ "Status Change",
642 /* 81 */ "Information Change",
643 /* 82 */ "Device-Specific Change",
644 /* 83 */ "Device-Specific Change",
648 static const char *AcpiGbl_ProcessorNotify[5] =
650 /* 80 */ "Performance Capability Change",
651 /* 81 */ "C-State Change",
652 /* 82 */ "Throttling Capability Change",
653 /* 83 */ "Guaranteed Change",
654 /* 84 */ "Minimum Excursion"
657 static const char *AcpiGbl_ThermalNotify[5] =
659 /* 80 */ "Thermal Status Change",
660 /* 81 */ "Thermal Trip Point Change",
661 /* 82 */ "Thermal Device List Change",
662 /* 83 */ "Thermal Relationship Change",
668 AcpiUtGetNotifyName (
670 ACPI_OBJECT_TYPE Type)
673 /* 00 - 0F are "common to all object types" (from ACPI Spec) */
675 if (NotifyValue <= ACPI_GENERIC_NOTIFY_MAX)
677 return (AcpiGbl_GenericNotify[NotifyValue]);
680 /* 10 - 7F are reserved */
682 if (NotifyValue <= ACPI_MAX_SYS_NOTIFY)
687 /* 80 - 84 are per-object-type */
689 if (NotifyValue <= ACPI_SPECIFIC_NOTIFY_MAX)
694 case ACPI_TYPE_DEVICE:
695 return (AcpiGbl_DeviceNotify [NotifyValue - 0x80]);
697 case ACPI_TYPE_PROCESSOR:
698 return (AcpiGbl_ProcessorNotify [NotifyValue - 0x80]);
700 case ACPI_TYPE_THERMAL:
701 return (AcpiGbl_ThermalNotify [NotifyValue - 0x80]);
704 return ("Target object type does not support notifies");
708 /* 84 - BF are device-specific */
710 if (NotifyValue <= ACPI_MAX_DEVICE_SPECIFIC_NOTIFY)
712 return ("Device-Specific");
715 /* C0 and above are hardware-specific */
717 return ("Hardware-Specific");
721 /*******************************************************************************
723 * FUNCTION: AcpiUtGetArgumentTypeName
725 * PARAMETERS: ArgType - an ARGP_* parser argument type
727 * RETURN: Decoded ARGP_* type
729 * DESCRIPTION: Decode an ARGP_* parser type, as defined in the amlcode.h file,
730 * and used in the acopcode.h file. For example, ARGP_TERMARG.
731 * Used for debug only.
733 ******************************************************************************/
735 static const char *AcpiGbl_ArgumentType[20] =
737 /* 00 */ "Unknown ARGP",
741 /* 04 */ "DataObject",
742 /* 05 */ "DataObjectList",
743 /* 06 */ "DWordData",
744 /* 07 */ "FieldList",
746 /* 09 */ "NameString",
747 /* 0A */ "ObjectList",
748 /* 0B */ "PackageLength",
749 /* 0C */ "SuperName",
754 /* 11 */ "QWordData",
755 /* 12 */ "SimpleName",
760 AcpiUtGetArgumentTypeName (
764 if (ArgType > ARGP_MAX)
766 return ("Unknown ARGP");
769 return (AcpiGbl_ArgumentType[ArgType]);
775 /*******************************************************************************
777 * FUNCTION: AcpiUtValidObjectType
779 * PARAMETERS: Type - Object type to be validated
781 * RETURN: TRUE if valid object type, FALSE otherwise
783 * DESCRIPTION: Validate an object type
785 ******************************************************************************/
788 AcpiUtValidObjectType (
789 ACPI_OBJECT_TYPE Type)
792 if (Type > ACPI_TYPE_LOCAL_MAX)
794 /* Note: Assumes all TYPEs are contiguous (external/local) */