1 /*******************************************************************************
3 * Module Name: dmnames - AML disassembler, names, namestrings, pathnames
5 ******************************************************************************/
8 * Copyright (C) 2000 - 2012, Intel Corp.
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20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
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23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
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45 #include <contrib/dev/acpica/include/acpi.h>
46 #include <contrib/dev/acpica/include/accommon.h>
47 #include <contrib/dev/acpica/include/acparser.h>
48 #include <contrib/dev/acpica/include/amlcode.h>
49 #include <contrib/dev/acpica/include/acnamesp.h>
50 #include <contrib/dev/acpica/include/acdisasm.h>
53 #ifdef ACPI_DISASSEMBLER
55 #define _COMPONENT ACPI_CA_DEBUGGER
56 ACPI_MODULE_NAME ("dmnames")
58 /* Local prototypes */
60 #ifdef ACPI_OBSOLETE_FUNCTIONS
63 ACPI_PARSE_OBJECT *Op);
67 /*******************************************************************************
69 * FUNCTION: AcpiDmDumpName
71 * PARAMETERS: Name - 4 character ACPI name
73 * RETURN: Final length of name
75 * DESCRIPTION: Dump an ACPI name, minus any trailing underscores.
77 ******************************************************************************/
88 /* Copy name locally in case the original name is not writeable */
90 *ACPI_CAST_PTR (UINT32, &NewName[0]) = Name;
92 /* Ensure that the name is printable, even if we have to fix it */
94 AcpiUtRepairName (NewName);
96 /* Remove all trailing underscores from the name */
98 Length = ACPI_NAME_SIZE;
99 for (i = (ACPI_NAME_SIZE - 1); i != 0; i--)
101 if (NewName[i] == '_')
111 /* Dump the name, up to the start of the trailing underscores */
113 for (i = 0; i < Length; i++)
115 AcpiOsPrintf ("%c", NewName[i]);
122 /*******************************************************************************
124 * FUNCTION: AcpiPsDisplayObjectPathname
126 * PARAMETERS: WalkState - Current walk state
127 * Op - Object whose pathname is to be obtained
131 * DESCRIPTION: Diplay the pathname associated with a named object. Two
132 * versions. One searches the parse tree (for parser-only
133 * applications suchas AcpiDump), and the other searches the
134 * ACPI namespace (the parse tree is probably deleted)
136 ******************************************************************************/
139 AcpiPsDisplayObjectPathname (
140 ACPI_WALK_STATE *WalkState,
141 ACPI_PARSE_OBJECT *Op)
144 ACPI_NAMESPACE_NODE *Node;
149 /* Save current debug level so we don't get extraneous debug output */
151 DebugLevel = AcpiDbgLevel;
154 /* Just get the Node out of the Op object */
156 Node = Op->Common.Node;
159 /* Node not defined in this scope, look it up */
161 Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String,
162 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
165 if (ACPI_FAILURE (Status))
168 * We can't get the pathname since the object
169 * is not in the namespace. This can happen during single
170 * stepping where a dynamic named object is *about* to be created.
172 AcpiOsPrintf (" [Path not found]");
176 /* Save it for next time. */
178 Op->Common.Node = Node;
181 /* Convert NamedDesc/handle to a full pathname */
183 Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
184 Status = AcpiNsHandleToPathname (Node, &Buffer);
185 if (ACPI_FAILURE (Status))
187 AcpiOsPrintf ("****Could not get pathname****)");
191 AcpiOsPrintf (" (Path %s)", (char *) Buffer.Pointer);
192 ACPI_FREE (Buffer.Pointer);
196 /* Restore the debug level */
198 AcpiDbgLevel = DebugLevel;
203 /*******************************************************************************
205 * FUNCTION: AcpiDmNamestring
207 * PARAMETERS: Name - ACPI Name string to store
211 * DESCRIPTION: Decode and dump an ACPI namestring. Handles prefix characters
213 ******************************************************************************/
227 /* Handle all Scope Prefix operators */
229 while (AcpiPsIsPrefixChar (ACPI_GET8 (Name)))
231 /* Append prefix character */
233 AcpiOsPrintf ("%1c", ACPI_GET8 (Name));
237 switch (ACPI_GET8 (Name))
243 case AML_DUAL_NAME_PREFIX:
248 case AML_MULTI_NAME_PREFIX_OP:
249 SegCount = (UINT32) ACPI_GET8 (Name + 1);
260 /* Append Name segment */
262 AcpiDmDumpName (*ACPI_CAST_PTR (UINT32, Name));
267 /* Not last name, append dot separator */
271 Name += ACPI_NAME_SIZE;
276 #ifdef ACPI_OBSOLETE_FUNCTIONS
277 /*******************************************************************************
279 * FUNCTION: AcpiDmDisplayPath
281 * PARAMETERS: Op - Named Op whose path is to be constructed
285 * DESCRIPTION: Walk backwards from current scope and display the name
286 * of each previous level of scope up to the root scope
287 * (like "pwd" does with file systems)
289 ******************************************************************************/
293 ACPI_PARSE_OBJECT *Op)
295 ACPI_PARSE_OBJECT *Prev;
296 ACPI_PARSE_OBJECT *Search;
298 BOOLEAN DoDot = FALSE;
299 ACPI_PARSE_OBJECT *NamePath;
300 const ACPI_OPCODE_INFO *OpInfo;
303 /* We are only interested in named objects */
305 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
306 if (!(OpInfo->Flags & AML_NSNODE))
311 if (OpInfo->Flags & AML_CREATE)
313 /* Field creation - check for a fully qualified namepath */
315 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
317 NamePath = AcpiPsGetArg (Op, 3);
321 NamePath = AcpiPsGetArg (Op, 2);
325 (NamePath->Common.Value.String) &&
326 (NamePath->Common.Value.String[0] == '\\'))
328 AcpiDmNamestring (NamePath->Common.Value.String);
333 Prev = NULL; /* Start with Root Node */
337 /* Search upwards in the tree to find scope with "prev" as its parent */
342 if (Search->Common.Parent == Prev)
347 /* Go up one level */
349 Search = Search->Common.Parent;
354 OpInfo = AcpiPsGetOpcodeInfo (Search->Common.AmlOpcode);
355 if (!(OpInfo->Flags & AML_FIELD))
357 /* Below root scope, append scope name */
366 if (OpInfo->Flags & AML_CREATE)
368 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
370 NamePath = AcpiPsGetArg (Op, 3);
374 NamePath = AcpiPsGetArg (Op, 2);
378 (NamePath->Common.Value.String))
380 AcpiDmDumpName (NamePath->Common.Value.String);
385 Name = AcpiPsGetName (Search);
386 AcpiDmDumpName ((char *) &Name);
397 /*******************************************************************************
399 * FUNCTION: AcpiDmValidateName
401 * PARAMETERS: Name - 4 character ACPI name
405 * DESCRIPTION: Lookup the name
407 ******************************************************************************/
412 ACPI_PARSE_OBJECT *Op)
416 (!Op->Common.Parent))
421 if (!Op->Common.Node)
424 " /**** Name not found or not accessible from this scope ****/ ");
427 ACPI_PARSE_OBJECT *TargetOp;
431 (!Op->Common.Parent))
436 TargetOp = AcpiPsFind (Op, Name, 0, 0);
440 * Didn't find the name in the parse tree. This may be
441 * a problem, or it may simply be one of the predefined names
442 * (such as _OS_). Rather than worry about looking up all
443 * the predefined names, just display the name as given
446 " /**** Name not found or not accessible from this scope ****/ ");