14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * PARTICULAR PURPOSE.
91 *
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * LIMITED REMEDY.
100 *
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
115 *
116 *****************************************************************************/
117
118
119#define __NSXFOBJ_C__
120
121#include "acpi.h"
122#include "acnamesp.h"
123
124
125#define _COMPONENT ACPI_NAMESPACE
126 ACPI_MODULE_NAME ("nsxfobj")
127
128/*******************************************************************************
129 *
130 * FUNCTION: AcpiGetType
131 *
132 * PARAMETERS: Handle - Handle of object whose type is desired
133 * *RetType - Where the type will be placed
134 *
135 * RETURN: Status
136 *
137 * DESCRIPTION: This routine returns the type associatd with a particular handle
138 *
139 ******************************************************************************/
140
141ACPI_STATUS
142AcpiGetType (
143 ACPI_HANDLE Handle,
144 ACPI_OBJECT_TYPE *RetType)
145{
146 ACPI_NAMESPACE_NODE *Node;
147 ACPI_STATUS Status;
148
149
150 /* Parameter Validation */
151
152 if (!RetType)
153 {
154 return (AE_BAD_PARAMETER);
155 }
156
157 /*
158 * Special case for the predefined Root Node
159 * (return type ANY)
160 */
161 if (Handle == ACPI_ROOT_OBJECT)
162 {
163 *RetType = ACPI_TYPE_ANY;
164 return (AE_OK);
165 }
166
167 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
168 if (ACPI_FAILURE (Status))
169 {
170 return (Status);
171 }
172
173 /* Convert and validate the handle */
174
175 Node = AcpiNsMapHandleToNode (Handle);
176 if (!Node)
177 {
178 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
179 return (AE_BAD_PARAMETER);
180 }
181
182 *RetType = Node->Type;
183
184
185 Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
186 return (Status);
187}
188
189
190/*******************************************************************************
191 *
192 * FUNCTION: AcpiGetParent
193 *
194 * PARAMETERS: Handle - Handle of object whose parent is desired
195 * RetHandle - Where the parent handle will be placed
196 *
197 * RETURN: Status
198 *
199 * DESCRIPTION: Returns a handle to the parent of the object represented by
200 * Handle.
201 *
202 ******************************************************************************/
203
204ACPI_STATUS
205AcpiGetParent (
206 ACPI_HANDLE Handle,
207 ACPI_HANDLE *RetHandle)
208{
209 ACPI_NAMESPACE_NODE *Node;
210 ACPI_STATUS Status;
211
212
213 if (!RetHandle)
214 {
215 return (AE_BAD_PARAMETER);
216 }
217
218 /* Special case for the predefined Root Node (no parent) */
219
220 if (Handle == ACPI_ROOT_OBJECT)
221 {
222 return (AE_NULL_ENTRY);
223 }
224
225 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
226 if (ACPI_FAILURE (Status))
227 {
228 return (Status);
229 }
230
231 /* Convert and validate the handle */
232
233 Node = AcpiNsMapHandleToNode (Handle);
234 if (!Node)
235 {
236 Status = AE_BAD_PARAMETER;
237 goto UnlockAndExit;
238 }
239
240 /* Get the parent entry */
241
242 *RetHandle =
243 AcpiNsConvertEntryToHandle (AcpiNsGetParentNode (Node));
244
245 /* Return exception if parent is null */
246
247 if (!AcpiNsGetParentNode (Node))
248 {
249 Status = AE_NULL_ENTRY;
250 }
251
252
253UnlockAndExit:
254
255 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
256 return (Status);
257}
258
259
260/*******************************************************************************
261 *
262 * FUNCTION: AcpiGetNextObject
263 *
264 * PARAMETERS: Type - Type of object to be searched for
265 * Parent - Parent object whose children we are getting
266 * LastChild - Previous child that was found.
267 * The NEXT child will be returned
268 * RetHandle - Where handle to the next object is placed
269 *
270 * RETURN: Status
271 *
272 * DESCRIPTION: Return the next peer object within the namespace. If Handle is
273 * valid, Scope is ignored. Otherwise, the first object within
274 * Scope is returned.
275 *
276 ******************************************************************************/
277
278ACPI_STATUS
279AcpiGetNextObject (
280 ACPI_OBJECT_TYPE Type,
281 ACPI_HANDLE Parent,
282 ACPI_HANDLE Child,
283 ACPI_HANDLE *RetHandle)
284{
285 ACPI_STATUS Status;
286 ACPI_NAMESPACE_NODE *Node;
287 ACPI_NAMESPACE_NODE *ParentNode = NULL;
288 ACPI_NAMESPACE_NODE *ChildNode = NULL;
289
290
291 /* Parameter validation */
292
293 if (Type > ACPI_TYPE_EXTERNAL_MAX)
294 {
295 return (AE_BAD_PARAMETER);
296 }
297
298 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
299 if (ACPI_FAILURE (Status))
300 {
301 return (Status);
302 }
303
304 /* If null handle, use the parent */
305
306 if (!Child)
307 {
308 /* Start search at the beginning of the specified scope */
309
310 ParentNode = AcpiNsMapHandleToNode (Parent);
311 if (!ParentNode)
312 {
313 Status = AE_BAD_PARAMETER;
314 goto UnlockAndExit;
315 }
316 }
317 else
318 {
319 /* Non-null handle, ignore the parent */
320 /* Convert and validate the handle */
321
322 ChildNode = AcpiNsMapHandleToNode (Child);
323 if (!ChildNode)
324 {
325 Status = AE_BAD_PARAMETER;
326 goto UnlockAndExit;
327 }
328 }
329
330 /* Internal function does the real work */
331
332 Node = AcpiNsGetNextNode (Type, ParentNode, ChildNode);
333 if (!Node)
334 {
335 Status = AE_NOT_FOUND;
336 goto UnlockAndExit;
337 }
338
339 if (RetHandle)
340 {
341 *RetHandle = AcpiNsConvertEntryToHandle (Node);
342 }
343
344
345UnlockAndExit:
346
347 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
348 return (Status);
349}
350
351
| 14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * PARTICULAR PURPOSE.
91 *
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * LIMITED REMEDY.
100 *
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
115 *
116 *****************************************************************************/
117
118
119#define __NSXFOBJ_C__
120
121#include "acpi.h"
122#include "acnamesp.h"
123
124
125#define _COMPONENT ACPI_NAMESPACE
126 ACPI_MODULE_NAME ("nsxfobj")
127
128/*******************************************************************************
129 *
130 * FUNCTION: AcpiGetType
131 *
132 * PARAMETERS: Handle - Handle of object whose type is desired
133 * *RetType - Where the type will be placed
134 *
135 * RETURN: Status
136 *
137 * DESCRIPTION: This routine returns the type associatd with a particular handle
138 *
139 ******************************************************************************/
140
141ACPI_STATUS
142AcpiGetType (
143 ACPI_HANDLE Handle,
144 ACPI_OBJECT_TYPE *RetType)
145{
146 ACPI_NAMESPACE_NODE *Node;
147 ACPI_STATUS Status;
148
149
150 /* Parameter Validation */
151
152 if (!RetType)
153 {
154 return (AE_BAD_PARAMETER);
155 }
156
157 /*
158 * Special case for the predefined Root Node
159 * (return type ANY)
160 */
161 if (Handle == ACPI_ROOT_OBJECT)
162 {
163 *RetType = ACPI_TYPE_ANY;
164 return (AE_OK);
165 }
166
167 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
168 if (ACPI_FAILURE (Status))
169 {
170 return (Status);
171 }
172
173 /* Convert and validate the handle */
174
175 Node = AcpiNsMapHandleToNode (Handle);
176 if (!Node)
177 {
178 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
179 return (AE_BAD_PARAMETER);
180 }
181
182 *RetType = Node->Type;
183
184
185 Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
186 return (Status);
187}
188
189
190/*******************************************************************************
191 *
192 * FUNCTION: AcpiGetParent
193 *
194 * PARAMETERS: Handle - Handle of object whose parent is desired
195 * RetHandle - Where the parent handle will be placed
196 *
197 * RETURN: Status
198 *
199 * DESCRIPTION: Returns a handle to the parent of the object represented by
200 * Handle.
201 *
202 ******************************************************************************/
203
204ACPI_STATUS
205AcpiGetParent (
206 ACPI_HANDLE Handle,
207 ACPI_HANDLE *RetHandle)
208{
209 ACPI_NAMESPACE_NODE *Node;
210 ACPI_STATUS Status;
211
212
213 if (!RetHandle)
214 {
215 return (AE_BAD_PARAMETER);
216 }
217
218 /* Special case for the predefined Root Node (no parent) */
219
220 if (Handle == ACPI_ROOT_OBJECT)
221 {
222 return (AE_NULL_ENTRY);
223 }
224
225 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
226 if (ACPI_FAILURE (Status))
227 {
228 return (Status);
229 }
230
231 /* Convert and validate the handle */
232
233 Node = AcpiNsMapHandleToNode (Handle);
234 if (!Node)
235 {
236 Status = AE_BAD_PARAMETER;
237 goto UnlockAndExit;
238 }
239
240 /* Get the parent entry */
241
242 *RetHandle =
243 AcpiNsConvertEntryToHandle (AcpiNsGetParentNode (Node));
244
245 /* Return exception if parent is null */
246
247 if (!AcpiNsGetParentNode (Node))
248 {
249 Status = AE_NULL_ENTRY;
250 }
251
252
253UnlockAndExit:
254
255 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
256 return (Status);
257}
258
259
260/*******************************************************************************
261 *
262 * FUNCTION: AcpiGetNextObject
263 *
264 * PARAMETERS: Type - Type of object to be searched for
265 * Parent - Parent object whose children we are getting
266 * LastChild - Previous child that was found.
267 * The NEXT child will be returned
268 * RetHandle - Where handle to the next object is placed
269 *
270 * RETURN: Status
271 *
272 * DESCRIPTION: Return the next peer object within the namespace. If Handle is
273 * valid, Scope is ignored. Otherwise, the first object within
274 * Scope is returned.
275 *
276 ******************************************************************************/
277
278ACPI_STATUS
279AcpiGetNextObject (
280 ACPI_OBJECT_TYPE Type,
281 ACPI_HANDLE Parent,
282 ACPI_HANDLE Child,
283 ACPI_HANDLE *RetHandle)
284{
285 ACPI_STATUS Status;
286 ACPI_NAMESPACE_NODE *Node;
287 ACPI_NAMESPACE_NODE *ParentNode = NULL;
288 ACPI_NAMESPACE_NODE *ChildNode = NULL;
289
290
291 /* Parameter validation */
292
293 if (Type > ACPI_TYPE_EXTERNAL_MAX)
294 {
295 return (AE_BAD_PARAMETER);
296 }
297
298 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
299 if (ACPI_FAILURE (Status))
300 {
301 return (Status);
302 }
303
304 /* If null handle, use the parent */
305
306 if (!Child)
307 {
308 /* Start search at the beginning of the specified scope */
309
310 ParentNode = AcpiNsMapHandleToNode (Parent);
311 if (!ParentNode)
312 {
313 Status = AE_BAD_PARAMETER;
314 goto UnlockAndExit;
315 }
316 }
317 else
318 {
319 /* Non-null handle, ignore the parent */
320 /* Convert and validate the handle */
321
322 ChildNode = AcpiNsMapHandleToNode (Child);
323 if (!ChildNode)
324 {
325 Status = AE_BAD_PARAMETER;
326 goto UnlockAndExit;
327 }
328 }
329
330 /* Internal function does the real work */
331
332 Node = AcpiNsGetNextNode (Type, ParentNode, ChildNode);
333 if (!Node)
334 {
335 Status = AE_NOT_FOUND;
336 goto UnlockAndExit;
337 }
338
339 if (RetHandle)
340 {
341 *RetHandle = AcpiNsConvertEntryToHandle (Node);
342 }
343
344
345UnlockAndExit:
346
347 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
348 return (Status);
349}
350
351
|