5 *
6 ******************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
13 * All rights reserved.
14 *
15 * 2. License
16 *
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
20 * property rights.
21 *
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
28 *
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
37 *
38 * The above copyright and patent license is granted only if the following
39 * conditions are met:
40 *
41 * 3. Conditions
42 *
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
54 *
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
65 * make.
66 *
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3.4. Intel retains all right, title, and interest in and to the Original
74 * Intel Code.
75 *
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
80 *
81 * 4. Disclaimer and Export Compliance
82 *
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89 * PARTICULAR PURPOSE.
90 *
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98 * LIMITED REMEDY.
99 *
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
114 *
115 *****************************************************************************/
116
117#define __NSACCESS_C__
118
119#include "acpi.h"
120#include "amlcode.h"
121#include "acnamesp.h"
122#include "acdispat.h"
123
124
125#define _COMPONENT ACPI_NAMESPACE
126 ACPI_MODULE_NAME ("nsaccess")
127
128
129/*******************************************************************************
130 *
131 * FUNCTION: AcpiNsRootInitialize
132 *
133 * PARAMETERS: None
134 *
135 * RETURN: Status
136 *
137 * DESCRIPTION: Allocate and initialize the default root named objects
138 *
139 * MUTEX: Locks namespace for entire execution
140 *
141 ******************************************************************************/
142
143ACPI_STATUS
144AcpiNsRootInitialize (void)
145{
146 ACPI_STATUS Status;
147 const ACPI_PREDEFINED_NAMES *InitVal = NULL;
148 ACPI_NAMESPACE_NODE *NewNode;
149 ACPI_OPERAND_OBJECT *ObjDesc;
150 ACPI_STRING Val = NULL;
151
152
153 ACPI_FUNCTION_TRACE ("NsRootInitialize");
154
155
156 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
157 if (ACPI_FAILURE (Status))
158 {
159 return_ACPI_STATUS (Status);
160 }
161
162 /*
163 * The global root ptr is initially NULL, so a non-NULL value indicates
164 * that AcpiNsRootInitialize() has already been called; just return.
165 */
166 if (AcpiGbl_RootNode)
167 {
168 Status = AE_OK;
169 goto UnlockAndExit;
170 }
171
172 /*
173 * Tell the rest of the subsystem that the root is initialized
174 * (This is OK because the namespace is locked)
175 */
176 AcpiGbl_RootNode = &AcpiGbl_RootNodeStruct;
177
178 /* Enter the pre-defined names in the name table */
179
180 ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
181 "Entering predefined entries into namespace\n"));
182
183 for (InitVal = AcpiGbl_PreDefinedNames; InitVal->Name; InitVal++)
184 {
185 /* _OSI is optional for now, will be permanent later */
186
187 if (!ACPI_STRCMP (InitVal->Name, "_OSI") && !AcpiGbl_CreateOsiMethod)
188 {
189 continue;
190 }
191
192 Status = AcpiNsLookup (NULL, InitVal->Name, InitVal->Type,
193 ACPI_IMODE_LOAD_PASS2, ACPI_NS_NO_UPSEARCH,
194 NULL, &NewNode);
195
196 if (ACPI_FAILURE (Status) || (!NewNode)) /* Must be on same line for code converter */
197 {
198 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
199 "Could not create predefined name %s, %s\n",
200 InitVal->Name, AcpiFormatException (Status)));
201 }
202
203 /*
204 * Name entered successfully.
205 * If entry in PreDefinedNames[] specifies an
206 * initial value, create the initial value.
207 */
208 if (InitVal->Val)
209 {
210 Status = AcpiOsPredefinedOverride (InitVal, &Val);
211 if (ACPI_FAILURE (Status))
212 {
213 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
214 "Could not override predefined %s\n",
215 InitVal->Name));
216 }
217
218 if (!Val)
219 {
220 Val = InitVal->Val;
221 }
222
223 /*
224 * Entry requests an initial value, allocate a
225 * descriptor for it.
226 */
227 ObjDesc = AcpiUtCreateInternalObject (InitVal->Type);
228 if (!ObjDesc)
229 {
230 Status = AE_NO_MEMORY;
231 goto UnlockAndExit;
232 }
233
234 /*
235 * Convert value string from table entry to
236 * internal representation. Only types actually
237 * used for initial values are implemented here.
238 */
239 switch (InitVal->Type)
240 {
241 case ACPI_TYPE_METHOD:
242 ObjDesc->Method.ParamCount = (UINT8) ACPI_STRTOUL
243 (Val, NULL, 10);
244 ObjDesc->Common.Flags |= AOPOBJ_DATA_VALID;
245
246#if defined (_ACPI_ASL_COMPILER) || defined (_ACPI_DUMP_APP)
247
248 /* iASL Compiler cheats by putting parameter count in the OwnerID */
249
250 NewNode->OwnerId = ObjDesc->Method.ParamCount;
251#else
252 /* Mark this as a very SPECIAL method */
253
254 ObjDesc->Method.MethodFlags = AML_METHOD_INTERNAL_ONLY;
255 ObjDesc->Method.Implementation = AcpiUtOsiImplementation;
256#endif
257 break;
258
259 case ACPI_TYPE_INTEGER:
260
261 ObjDesc->Integer.Value =
262 (ACPI_INTEGER) ACPI_STRTOUL (Val, NULL, 10);
263 break;
264
265
266 case ACPI_TYPE_STRING:
267
268 /*
269 * Build an object around the static string
270 */
271 ObjDesc->String.Length = (UINT32) ACPI_STRLEN (Val);
272 ObjDesc->String.Pointer = Val;
273 ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER;
274 break;
275
276
277 case ACPI_TYPE_MUTEX:
278
279 ObjDesc->Mutex.Node = NewNode;
280 ObjDesc->Mutex.SyncLevel = (UINT16) ACPI_STRTOUL
281 (Val, NULL, 10);
282
283 if (ACPI_STRCMP (InitVal->Name, "_GL_") == 0)
284 {
285 /*
286 * Create a counting semaphore for the
287 * global lock
288 */
289 Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT,
290 1, &ObjDesc->Mutex.Semaphore);
291 if (ACPI_FAILURE (Status))
292 {
293 goto UnlockAndExit;
294 }
295
296 /*
297 * We just created the mutex for the
298 * global lock, save it
299 */
300 AcpiGbl_GlobalLockSemaphore = ObjDesc->Mutex.Semaphore;
301 }
302 else
303 {
304 /* Create a mutex */
305
306 Status = AcpiOsCreateSemaphore (1, 1,
307 &ObjDesc->Mutex.Semaphore);
308 if (ACPI_FAILURE (Status))
309 {
310 goto UnlockAndExit;
311 }
312 }
313 break;
314
315
316 default:
317
318 ACPI_REPORT_ERROR (("Unsupported initial type value %X\n",
319 InitVal->Type));
320 AcpiUtRemoveReference (ObjDesc);
321 ObjDesc = NULL;
322 continue;
323 }
324
325 /* Store pointer to value descriptor in the Node */
326
327 Status = AcpiNsAttachObject (NewNode, ObjDesc, ACPI_GET_OBJECT_TYPE (ObjDesc));
328
329 /* Remove local reference to the object */
330
331 AcpiUtRemoveReference (ObjDesc);
332 }
333 }
334
335
336UnlockAndExit:
337 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
| 5 *
6 ******************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
13 * All rights reserved.
14 *
15 * 2. License
16 *
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
20 * property rights.
21 *
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
28 *
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
37 *
38 * The above copyright and patent license is granted only if the following
39 * conditions are met:
40 *
41 * 3. Conditions
42 *
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
54 *
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
65 * make.
66 *
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3.4. Intel retains all right, title, and interest in and to the Original
74 * Intel Code.
75 *
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
80 *
81 * 4. Disclaimer and Export Compliance
82 *
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89 * PARTICULAR PURPOSE.
90 *
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98 * LIMITED REMEDY.
99 *
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
114 *
115 *****************************************************************************/
116
117#define __NSACCESS_C__
118
119#include "acpi.h"
120#include "amlcode.h"
121#include "acnamesp.h"
122#include "acdispat.h"
123
124
125#define _COMPONENT ACPI_NAMESPACE
126 ACPI_MODULE_NAME ("nsaccess")
127
128
129/*******************************************************************************
130 *
131 * FUNCTION: AcpiNsRootInitialize
132 *
133 * PARAMETERS: None
134 *
135 * RETURN: Status
136 *
137 * DESCRIPTION: Allocate and initialize the default root named objects
138 *
139 * MUTEX: Locks namespace for entire execution
140 *
141 ******************************************************************************/
142
143ACPI_STATUS
144AcpiNsRootInitialize (void)
145{
146 ACPI_STATUS Status;
147 const ACPI_PREDEFINED_NAMES *InitVal = NULL;
148 ACPI_NAMESPACE_NODE *NewNode;
149 ACPI_OPERAND_OBJECT *ObjDesc;
150 ACPI_STRING Val = NULL;
151
152
153 ACPI_FUNCTION_TRACE ("NsRootInitialize");
154
155
156 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
157 if (ACPI_FAILURE (Status))
158 {
159 return_ACPI_STATUS (Status);
160 }
161
162 /*
163 * The global root ptr is initially NULL, so a non-NULL value indicates
164 * that AcpiNsRootInitialize() has already been called; just return.
165 */
166 if (AcpiGbl_RootNode)
167 {
168 Status = AE_OK;
169 goto UnlockAndExit;
170 }
171
172 /*
173 * Tell the rest of the subsystem that the root is initialized
174 * (This is OK because the namespace is locked)
175 */
176 AcpiGbl_RootNode = &AcpiGbl_RootNodeStruct;
177
178 /* Enter the pre-defined names in the name table */
179
180 ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
181 "Entering predefined entries into namespace\n"));
182
183 for (InitVal = AcpiGbl_PreDefinedNames; InitVal->Name; InitVal++)
184 {
185 /* _OSI is optional for now, will be permanent later */
186
187 if (!ACPI_STRCMP (InitVal->Name, "_OSI") && !AcpiGbl_CreateOsiMethod)
188 {
189 continue;
190 }
191
192 Status = AcpiNsLookup (NULL, InitVal->Name, InitVal->Type,
193 ACPI_IMODE_LOAD_PASS2, ACPI_NS_NO_UPSEARCH,
194 NULL, &NewNode);
195
196 if (ACPI_FAILURE (Status) || (!NewNode)) /* Must be on same line for code converter */
197 {
198 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
199 "Could not create predefined name %s, %s\n",
200 InitVal->Name, AcpiFormatException (Status)));
201 }
202
203 /*
204 * Name entered successfully.
205 * If entry in PreDefinedNames[] specifies an
206 * initial value, create the initial value.
207 */
208 if (InitVal->Val)
209 {
210 Status = AcpiOsPredefinedOverride (InitVal, &Val);
211 if (ACPI_FAILURE (Status))
212 {
213 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
214 "Could not override predefined %s\n",
215 InitVal->Name));
216 }
217
218 if (!Val)
219 {
220 Val = InitVal->Val;
221 }
222
223 /*
224 * Entry requests an initial value, allocate a
225 * descriptor for it.
226 */
227 ObjDesc = AcpiUtCreateInternalObject (InitVal->Type);
228 if (!ObjDesc)
229 {
230 Status = AE_NO_MEMORY;
231 goto UnlockAndExit;
232 }
233
234 /*
235 * Convert value string from table entry to
236 * internal representation. Only types actually
237 * used for initial values are implemented here.
238 */
239 switch (InitVal->Type)
240 {
241 case ACPI_TYPE_METHOD:
242 ObjDesc->Method.ParamCount = (UINT8) ACPI_STRTOUL
243 (Val, NULL, 10);
244 ObjDesc->Common.Flags |= AOPOBJ_DATA_VALID;
245
246#if defined (_ACPI_ASL_COMPILER) || defined (_ACPI_DUMP_APP)
247
248 /* iASL Compiler cheats by putting parameter count in the OwnerID */
249
250 NewNode->OwnerId = ObjDesc->Method.ParamCount;
251#else
252 /* Mark this as a very SPECIAL method */
253
254 ObjDesc->Method.MethodFlags = AML_METHOD_INTERNAL_ONLY;
255 ObjDesc->Method.Implementation = AcpiUtOsiImplementation;
256#endif
257 break;
258
259 case ACPI_TYPE_INTEGER:
260
261 ObjDesc->Integer.Value =
262 (ACPI_INTEGER) ACPI_STRTOUL (Val, NULL, 10);
263 break;
264
265
266 case ACPI_TYPE_STRING:
267
268 /*
269 * Build an object around the static string
270 */
271 ObjDesc->String.Length = (UINT32) ACPI_STRLEN (Val);
272 ObjDesc->String.Pointer = Val;
273 ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER;
274 break;
275
276
277 case ACPI_TYPE_MUTEX:
278
279 ObjDesc->Mutex.Node = NewNode;
280 ObjDesc->Mutex.SyncLevel = (UINT16) ACPI_STRTOUL
281 (Val, NULL, 10);
282
283 if (ACPI_STRCMP (InitVal->Name, "_GL_") == 0)
284 {
285 /*
286 * Create a counting semaphore for the
287 * global lock
288 */
289 Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT,
290 1, &ObjDesc->Mutex.Semaphore);
291 if (ACPI_FAILURE (Status))
292 {
293 goto UnlockAndExit;
294 }
295
296 /*
297 * We just created the mutex for the
298 * global lock, save it
299 */
300 AcpiGbl_GlobalLockSemaphore = ObjDesc->Mutex.Semaphore;
301 }
302 else
303 {
304 /* Create a mutex */
305
306 Status = AcpiOsCreateSemaphore (1, 1,
307 &ObjDesc->Mutex.Semaphore);
308 if (ACPI_FAILURE (Status))
309 {
310 goto UnlockAndExit;
311 }
312 }
313 break;
314
315
316 default:
317
318 ACPI_REPORT_ERROR (("Unsupported initial type value %X\n",
319 InitVal->Type));
320 AcpiUtRemoveReference (ObjDesc);
321 ObjDesc = NULL;
322 continue;
323 }
324
325 /* Store pointer to value descriptor in the Node */
326
327 Status = AcpiNsAttachObject (NewNode, ObjDesc, ACPI_GET_OBJECT_TYPE (ObjDesc));
328
329 /* Remove local reference to the object */
330
331 AcpiUtRemoveReference (ObjDesc);
332 }
333 }
334
335
336UnlockAndExit:
337 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
|
338 return_ACPI_STATUS (Status);
339}
340
341
342/*******************************************************************************
343 *
344 * FUNCTION: AcpiNsLookup
345 *
346 * PARAMETERS: PrefixNode - Search scope if name is not fully qualified
347 * Pathname - Search pathname, in internal format
348 * (as represented in the AML stream)
349 * Type - Type associated with name
350 * InterpreterMode - IMODE_LOAD_PASS2 => add name if not found
351 * Flags - Flags describing the search restrictions
352 * WalkState - Current state of the walk
353 * ReturnNode - Where the Node is placed (if found
354 * or created successfully)
355 *
356 * RETURN: Status
357 *
358 * DESCRIPTION: Find or enter the passed name in the name space.
359 * Log an error if name not found in Exec mode.
360 *
361 * MUTEX: Assumes namespace is locked.
362 *
363 ******************************************************************************/
364
365ACPI_STATUS
366AcpiNsLookup (
367 ACPI_GENERIC_STATE *ScopeInfo,
368 char *Pathname,
369 ACPI_OBJECT_TYPE Type,
370 ACPI_INTERPRETER_MODE InterpreterMode,
371 UINT32 Flags,
372 ACPI_WALK_STATE *WalkState,
373 ACPI_NAMESPACE_NODE **ReturnNode)
374{
375 ACPI_STATUS Status;
376 char *Path = Pathname;
377 ACPI_NAMESPACE_NODE *PrefixNode;
378 ACPI_NAMESPACE_NODE *CurrentNode = NULL;
379 ACPI_NAMESPACE_NODE *ThisNode = NULL;
380 UINT32 NumSegments;
381 UINT32 NumCarats;
382 ACPI_NAME SimpleName;
383 ACPI_OBJECT_TYPE TypeToCheckFor;
384 ACPI_OBJECT_TYPE ThisSearchType;
385 UINT32 SearchParentFlag = ACPI_NS_SEARCH_PARENT;
386 UINT32 LocalFlags = Flags & ~(ACPI_NS_ERROR_IF_FOUND |
387 ACPI_NS_SEARCH_PARENT);
388
389
390 ACPI_FUNCTION_TRACE ("NsLookup");
391
392
393 if (!ReturnNode)
394 {
395 return_ACPI_STATUS (AE_BAD_PARAMETER);
396 }
397
398 AcpiGbl_NsLookupCount++;
399 *ReturnNode = ACPI_ENTRY_NOT_FOUND;
400
401 if (!AcpiGbl_RootNode)
402 {
403 return_ACPI_STATUS (AE_NO_NAMESPACE);
404 }
405
406 /*
407 * Get the prefix scope.
408 * A null scope means use the root scope
409 */
410 if ((!ScopeInfo) ||
411 (!ScopeInfo->Scope.Node))
412 {
413 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
414 "Null scope prefix, using root node (%p)\n",
415 AcpiGbl_RootNode));
416
417 PrefixNode = AcpiGbl_RootNode;
418 }
419 else
420 {
421 PrefixNode = ScopeInfo->Scope.Node;
422 if (ACPI_GET_DESCRIPTOR_TYPE (PrefixNode) != ACPI_DESC_TYPE_NAMED)
423 {
424 ACPI_REPORT_ERROR (("NsLookup: %p is not a namespace node [%s]\n",
425 PrefixNode, AcpiUtGetDescriptorName (PrefixNode)));
426 return_ACPI_STATUS (AE_AML_INTERNAL);
427 }
428
429 /*
430 * This node might not be a actual "scope" node (such as a
431 * Device/Method, etc.) It could be a Package or other object node.
432 * Backup up the tree to find the containing scope node.
433 */
434 while (!AcpiNsOpensScope (PrefixNode->Type) &&
435 PrefixNode->Type != ACPI_TYPE_ANY)
436 {
437 PrefixNode = AcpiNsGetParentNode (PrefixNode);
438 }
439 }
440
441 /* Save type TBD: may be no longer necessary */
442
443 TypeToCheckFor = Type;
444
445 /*
446 * Begin examination of the actual pathname
447 */
448 if (!Pathname)
449 {
450 /* A Null NamePath is allowed and refers to the root */
451
452 NumSegments = 0;
453 ThisNode = AcpiGbl_RootNode;
454 Path = "";
455
456 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
457 "Null Pathname (Zero segments), Flags=%X\n", Flags));
458 }
459 else
460 {
461 /*
462 * Name pointer is valid (and must be in internal name format)
463 *
464 * Check for scope prefixes:
465 *
466 * As represented in the AML stream, a namepath consists of an
467 * optional scope prefix followed by a name segment part.
468 *
469 * If present, the scope prefix is either a Root Prefix (in
470 * which case the name is fully qualified), or one or more
471 * Parent Prefixes (in which case the name's scope is relative
472 * to the current scope).
473 */
474 if (*Path == (UINT8) AML_ROOT_PREFIX)
475 {
476 /* Pathname is fully qualified, start from the root */
477
478 ThisNode = AcpiGbl_RootNode;
479 SearchParentFlag = ACPI_NS_NO_UPSEARCH;
480
481 /* Point to name segment part */
482
483 Path++;
484
485 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
486 "Path is absolute from root [%p]\n", ThisNode));
487 }
488 else
489 {
490 /* Pathname is relative to current scope, start there */
491
492 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
493 "Searching relative to prefix scope [%4.4s] (%p)\n",
494 AcpiUtGetNodeName (PrefixNode), PrefixNode));
495
496 /*
497 * Handle multiple Parent Prefixes (carat) by just getting
498 * the parent node for each prefix instance.
499 */
500 ThisNode = PrefixNode;
501 NumCarats = 0;
502 while (*Path == (UINT8) AML_PARENT_PREFIX)
503 {
504 /* Name is fully qualified, no search rules apply */
505
506 SearchParentFlag = ACPI_NS_NO_UPSEARCH;
507 /*
508 * Point past this prefix to the name segment
509 * part or the next Parent Prefix
510 */
511 Path++;
512
513 /* Backup to the parent node */
514
515 NumCarats++;
516 ThisNode = AcpiNsGetParentNode (ThisNode);
517 if (!ThisNode)
518 {
519 /* Current scope has no parent scope */
520
521 ACPI_REPORT_ERROR (
522 ("ACPI path has too many parent prefixes (^) - reached beyond root node\n"));
523 return_ACPI_STATUS (AE_NOT_FOUND);
524 }
525 }
526
527 if (SearchParentFlag == ACPI_NS_NO_UPSEARCH)
528 {
529 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
530 "Search scope is [%4.4s], path has %d carat(s)\n",
531 AcpiUtGetNodeName (ThisNode), NumCarats));
532 }
533 }
534
535 /*
536 * Determine the number of ACPI name segments in this pathname.
537 *
538 * The segment part consists of either:
539 * - A Null name segment (0)
540 * - A DualNamePrefix followed by two 4-byte name segments
541 * - A MultiNamePrefix followed by a byte indicating the
542 * number of segments and the segments themselves.
543 * - A single 4-byte name segment
544 *
545 * Examine the name prefix opcode, if any, to determine the number of
546 * segments.
547 */
548 switch (*Path)
549 {
550 case 0:
551 /*
552 * Null name after a root or parent prefixes. We already
553 * have the correct target node and there are no name segments.
554 */
555 NumSegments = 0;
556 Type = ThisNode->Type;
557
558 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
559 "Prefix-only Pathname (Zero name segments), Flags=%X\n", Flags));
560 break;
561
562 case AML_DUAL_NAME_PREFIX:
563
564 /* More than one NameSeg, search rules do not apply */
565
566 SearchParentFlag = ACPI_NS_NO_UPSEARCH;
567
568 /* Two segments, point to first name segment */
569
570 NumSegments = 2;
571 Path++;
572
573 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
574 "Dual Pathname (2 segments, Flags=%X)\n", Flags));
575 break;
576
577 case AML_MULTI_NAME_PREFIX_OP:
578
579 /* More than one NameSeg, search rules do not apply */
580
581 SearchParentFlag = ACPI_NS_NO_UPSEARCH;
582
583 /* Extract segment count, point to first name segment */
584
585 Path++;
586 NumSegments = (UINT32) (UINT8) *Path;
587 Path++;
588
589 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
590 "Multi Pathname (%d Segments, Flags=%X) \n",
591 NumSegments, Flags));
592 break;
593
594 default:
595 /*
596 * Not a Null name, no Dual or Multi prefix, hence there is
597 * only one name segment and Pathname is already pointing to it.
598 */
599 NumSegments = 1;
600
601 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
602 "Simple Pathname (1 segment, Flags=%X)\n", Flags));
603 break;
604 }
605
606 ACPI_DEBUG_EXEC (AcpiNsPrintPathname (NumSegments, Path));
607 }
608
609
610 /*
611 * Search namespace for each segment of the name. Loop through and
612 * verify (or add to the namespace) each name segment.
613 *
614 * The object type is significant only at the last name
615 * segment. (We don't care about the types along the path, only
616 * the type of the final target object.)
617 */
618 ThisSearchType = ACPI_TYPE_ANY;
619 CurrentNode = ThisNode;
620 while (NumSegments && CurrentNode)
621 {
622 NumSegments--;
623 if (!NumSegments)
624 {
625 /*
626 * This is the last segment, enable typechecking
627 */
628 ThisSearchType = Type;
629
630 /*
631 * Only allow automatic parent search (search rules) if the caller
632 * requested it AND we have a single, non-fully-qualified NameSeg
633 */
634 if ((SearchParentFlag != ACPI_NS_NO_UPSEARCH) &&
635 (Flags & ACPI_NS_SEARCH_PARENT))
636 {
637 LocalFlags |= ACPI_NS_SEARCH_PARENT;
638 }
639
640 /* Set error flag according to caller */
641
642 if (Flags & ACPI_NS_ERROR_IF_FOUND)
643 {
644 LocalFlags |= ACPI_NS_ERROR_IF_FOUND;
645 }
646 }
647
648 /* Extract one ACPI name from the front of the pathname */
649
650 ACPI_MOVE_32_TO_32 (&SimpleName, Path);
651
652 /* Try to find the single (4 character) ACPI name */
653
654 Status = AcpiNsSearchAndEnter (SimpleName, WalkState, CurrentNode,
655 InterpreterMode, ThisSearchType, LocalFlags, &ThisNode);
656 if (ACPI_FAILURE (Status))
657 {
658 if (Status == AE_NOT_FOUND)
659 {
660 /* Name not found in ACPI namespace */
661
662 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
663 "Name [%4.4s] not found in scope [%4.4s] %p\n",
664 (char *) &SimpleName, (char *) &CurrentNode->Name,
665 CurrentNode));
666 }
667
668 *ReturnNode = ThisNode;
669 return_ACPI_STATUS (Status);
670 }
671
672 /*
673 * Sanity typecheck of the target object:
674 *
675 * If 1) This is the last segment (NumSegments == 0)
676 * 2) And we are looking for a specific type
677 * (Not checking for TYPE_ANY)
678 * 3) Which is not an alias
679 * 4) Which is not a local type (TYPE_SCOPE)
680 * 5) And the type of target object is known (not TYPE_ANY)
681 * 6) And target object does not match what we are looking for
682 *
683 * Then we have a type mismatch. Just warn and ignore it.
684 */
685 if ((NumSegments == 0) &&
686 (TypeToCheckFor != ACPI_TYPE_ANY) &&
687 (TypeToCheckFor != ACPI_TYPE_LOCAL_ALIAS) &&
| 347 return_ACPI_STATUS (Status);
348}
349
350
351/*******************************************************************************
352 *
353 * FUNCTION: AcpiNsLookup
354 *
355 * PARAMETERS: PrefixNode - Search scope if name is not fully qualified
356 * Pathname - Search pathname, in internal format
357 * (as represented in the AML stream)
358 * Type - Type associated with name
359 * InterpreterMode - IMODE_LOAD_PASS2 => add name if not found
360 * Flags - Flags describing the search restrictions
361 * WalkState - Current state of the walk
362 * ReturnNode - Where the Node is placed (if found
363 * or created successfully)
364 *
365 * RETURN: Status
366 *
367 * DESCRIPTION: Find or enter the passed name in the name space.
368 * Log an error if name not found in Exec mode.
369 *
370 * MUTEX: Assumes namespace is locked.
371 *
372 ******************************************************************************/
373
374ACPI_STATUS
375AcpiNsLookup (
376 ACPI_GENERIC_STATE *ScopeInfo,
377 char *Pathname,
378 ACPI_OBJECT_TYPE Type,
379 ACPI_INTERPRETER_MODE InterpreterMode,
380 UINT32 Flags,
381 ACPI_WALK_STATE *WalkState,
382 ACPI_NAMESPACE_NODE **ReturnNode)
383{
384 ACPI_STATUS Status;
385 char *Path = Pathname;
386 ACPI_NAMESPACE_NODE *PrefixNode;
387 ACPI_NAMESPACE_NODE *CurrentNode = NULL;
388 ACPI_NAMESPACE_NODE *ThisNode = NULL;
389 UINT32 NumSegments;
390 UINT32 NumCarats;
391 ACPI_NAME SimpleName;
392 ACPI_OBJECT_TYPE TypeToCheckFor;
393 ACPI_OBJECT_TYPE ThisSearchType;
394 UINT32 SearchParentFlag = ACPI_NS_SEARCH_PARENT;
395 UINT32 LocalFlags = Flags & ~(ACPI_NS_ERROR_IF_FOUND |
396 ACPI_NS_SEARCH_PARENT);
397
398
399 ACPI_FUNCTION_TRACE ("NsLookup");
400
401
402 if (!ReturnNode)
403 {
404 return_ACPI_STATUS (AE_BAD_PARAMETER);
405 }
406
407 AcpiGbl_NsLookupCount++;
408 *ReturnNode = ACPI_ENTRY_NOT_FOUND;
409
410 if (!AcpiGbl_RootNode)
411 {
412 return_ACPI_STATUS (AE_NO_NAMESPACE);
413 }
414
415 /*
416 * Get the prefix scope.
417 * A null scope means use the root scope
418 */
419 if ((!ScopeInfo) ||
420 (!ScopeInfo->Scope.Node))
421 {
422 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
423 "Null scope prefix, using root node (%p)\n",
424 AcpiGbl_RootNode));
425
426 PrefixNode = AcpiGbl_RootNode;
427 }
428 else
429 {
430 PrefixNode = ScopeInfo->Scope.Node;
431 if (ACPI_GET_DESCRIPTOR_TYPE (PrefixNode) != ACPI_DESC_TYPE_NAMED)
432 {
433 ACPI_REPORT_ERROR (("NsLookup: %p is not a namespace node [%s]\n",
434 PrefixNode, AcpiUtGetDescriptorName (PrefixNode)));
435 return_ACPI_STATUS (AE_AML_INTERNAL);
436 }
437
438 /*
439 * This node might not be a actual "scope" node (such as a
440 * Device/Method, etc.) It could be a Package or other object node.
441 * Backup up the tree to find the containing scope node.
442 */
443 while (!AcpiNsOpensScope (PrefixNode->Type) &&
444 PrefixNode->Type != ACPI_TYPE_ANY)
445 {
446 PrefixNode = AcpiNsGetParentNode (PrefixNode);
447 }
448 }
449
450 /* Save type TBD: may be no longer necessary */
451
452 TypeToCheckFor = Type;
453
454 /*
455 * Begin examination of the actual pathname
456 */
457 if (!Pathname)
458 {
459 /* A Null NamePath is allowed and refers to the root */
460
461 NumSegments = 0;
462 ThisNode = AcpiGbl_RootNode;
463 Path = "";
464
465 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
466 "Null Pathname (Zero segments), Flags=%X\n", Flags));
467 }
468 else
469 {
470 /*
471 * Name pointer is valid (and must be in internal name format)
472 *
473 * Check for scope prefixes:
474 *
475 * As represented in the AML stream, a namepath consists of an
476 * optional scope prefix followed by a name segment part.
477 *
478 * If present, the scope prefix is either a Root Prefix (in
479 * which case the name is fully qualified), or one or more
480 * Parent Prefixes (in which case the name's scope is relative
481 * to the current scope).
482 */
483 if (*Path == (UINT8) AML_ROOT_PREFIX)
484 {
485 /* Pathname is fully qualified, start from the root */
486
487 ThisNode = AcpiGbl_RootNode;
488 SearchParentFlag = ACPI_NS_NO_UPSEARCH;
489
490 /* Point to name segment part */
491
492 Path++;
493
494 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
495 "Path is absolute from root [%p]\n", ThisNode));
496 }
497 else
498 {
499 /* Pathname is relative to current scope, start there */
500
501 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
502 "Searching relative to prefix scope [%4.4s] (%p)\n",
503 AcpiUtGetNodeName (PrefixNode), PrefixNode));
504
505 /*
506 * Handle multiple Parent Prefixes (carat) by just getting
507 * the parent node for each prefix instance.
508 */
509 ThisNode = PrefixNode;
510 NumCarats = 0;
511 while (*Path == (UINT8) AML_PARENT_PREFIX)
512 {
513 /* Name is fully qualified, no search rules apply */
514
515 SearchParentFlag = ACPI_NS_NO_UPSEARCH;
516 /*
517 * Point past this prefix to the name segment
518 * part or the next Parent Prefix
519 */
520 Path++;
521
522 /* Backup to the parent node */
523
524 NumCarats++;
525 ThisNode = AcpiNsGetParentNode (ThisNode);
526 if (!ThisNode)
527 {
528 /* Current scope has no parent scope */
529
530 ACPI_REPORT_ERROR (
531 ("ACPI path has too many parent prefixes (^) - reached beyond root node\n"));
532 return_ACPI_STATUS (AE_NOT_FOUND);
533 }
534 }
535
536 if (SearchParentFlag == ACPI_NS_NO_UPSEARCH)
537 {
538 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
539 "Search scope is [%4.4s], path has %d carat(s)\n",
540 AcpiUtGetNodeName (ThisNode), NumCarats));
541 }
542 }
543
544 /*
545 * Determine the number of ACPI name segments in this pathname.
546 *
547 * The segment part consists of either:
548 * - A Null name segment (0)
549 * - A DualNamePrefix followed by two 4-byte name segments
550 * - A MultiNamePrefix followed by a byte indicating the
551 * number of segments and the segments themselves.
552 * - A single 4-byte name segment
553 *
554 * Examine the name prefix opcode, if any, to determine the number of
555 * segments.
556 */
557 switch (*Path)
558 {
559 case 0:
560 /*
561 * Null name after a root or parent prefixes. We already
562 * have the correct target node and there are no name segments.
563 */
564 NumSegments = 0;
565 Type = ThisNode->Type;
566
567 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
568 "Prefix-only Pathname (Zero name segments), Flags=%X\n", Flags));
569 break;
570
571 case AML_DUAL_NAME_PREFIX:
572
573 /* More than one NameSeg, search rules do not apply */
574
575 SearchParentFlag = ACPI_NS_NO_UPSEARCH;
576
577 /* Two segments, point to first name segment */
578
579 NumSegments = 2;
580 Path++;
581
582 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
583 "Dual Pathname (2 segments, Flags=%X)\n", Flags));
584 break;
585
586 case AML_MULTI_NAME_PREFIX_OP:
587
588 /* More than one NameSeg, search rules do not apply */
589
590 SearchParentFlag = ACPI_NS_NO_UPSEARCH;
591
592 /* Extract segment count, point to first name segment */
593
594 Path++;
595 NumSegments = (UINT32) (UINT8) *Path;
596 Path++;
597
598 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
599 "Multi Pathname (%d Segments, Flags=%X) \n",
600 NumSegments, Flags));
601 break;
602
603 default:
604 /*
605 * Not a Null name, no Dual or Multi prefix, hence there is
606 * only one name segment and Pathname is already pointing to it.
607 */
608 NumSegments = 1;
609
610 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
611 "Simple Pathname (1 segment, Flags=%X)\n", Flags));
612 break;
613 }
614
615 ACPI_DEBUG_EXEC (AcpiNsPrintPathname (NumSegments, Path));
616 }
617
618
619 /*
620 * Search namespace for each segment of the name. Loop through and
621 * verify (or add to the namespace) each name segment.
622 *
623 * The object type is significant only at the last name
624 * segment. (We don't care about the types along the path, only
625 * the type of the final target object.)
626 */
627 ThisSearchType = ACPI_TYPE_ANY;
628 CurrentNode = ThisNode;
629 while (NumSegments && CurrentNode)
630 {
631 NumSegments--;
632 if (!NumSegments)
633 {
634 /*
635 * This is the last segment, enable typechecking
636 */
637 ThisSearchType = Type;
638
639 /*
640 * Only allow automatic parent search (search rules) if the caller
641 * requested it AND we have a single, non-fully-qualified NameSeg
642 */
643 if ((SearchParentFlag != ACPI_NS_NO_UPSEARCH) &&
644 (Flags & ACPI_NS_SEARCH_PARENT))
645 {
646 LocalFlags |= ACPI_NS_SEARCH_PARENT;
647 }
648
649 /* Set error flag according to caller */
650
651 if (Flags & ACPI_NS_ERROR_IF_FOUND)
652 {
653 LocalFlags |= ACPI_NS_ERROR_IF_FOUND;
654 }
655 }
656
657 /* Extract one ACPI name from the front of the pathname */
658
659 ACPI_MOVE_32_TO_32 (&SimpleName, Path);
660
661 /* Try to find the single (4 character) ACPI name */
662
663 Status = AcpiNsSearchAndEnter (SimpleName, WalkState, CurrentNode,
664 InterpreterMode, ThisSearchType, LocalFlags, &ThisNode);
665 if (ACPI_FAILURE (Status))
666 {
667 if (Status == AE_NOT_FOUND)
668 {
669 /* Name not found in ACPI namespace */
670
671 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
672 "Name [%4.4s] not found in scope [%4.4s] %p\n",
673 (char *) &SimpleName, (char *) &CurrentNode->Name,
674 CurrentNode));
675 }
676
677 *ReturnNode = ThisNode;
678 return_ACPI_STATUS (Status);
679 }
680
681 /*
682 * Sanity typecheck of the target object:
683 *
684 * If 1) This is the last segment (NumSegments == 0)
685 * 2) And we are looking for a specific type
686 * (Not checking for TYPE_ANY)
687 * 3) Which is not an alias
688 * 4) Which is not a local type (TYPE_SCOPE)
689 * 5) And the type of target object is known (not TYPE_ANY)
690 * 6) And target object does not match what we are looking for
691 *
692 * Then we have a type mismatch. Just warn and ignore it.
693 */
694 if ((NumSegments == 0) &&
695 (TypeToCheckFor != ACPI_TYPE_ANY) &&
696 (TypeToCheckFor != ACPI_TYPE_LOCAL_ALIAS) &&
|