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#define __EXRESNTE_C__
119
120#include "acpi.h"
121#include "acdispat.h"
122#include "acinterp.h"
123#include "acnamesp.h"
124#include "acparser.h"
125#include "amlcode.h"
126
127
128#define _COMPONENT ACPI_EXECUTER
129 ACPI_MODULE_NAME ("exresnte")
130
131
132/*******************************************************************************
133 *
134 * FUNCTION: AcpiExResolveNodeToValue
135 *
136 * PARAMETERS: ObjectPtr - Pointer to a location that contains
137 * a pointer to a NS node, and will receive a
138 * pointer to the resolved object.
139 * WalkState - Current state. Valid only if executing AML
140 * code. NULL if simply resolving an object
141 *
142 * RETURN: Status
143 *
144 * DESCRIPTION: Resolve a Namespace node to a valued object
145 *
146 * Note: for some of the data types, the pointer attached to the Node
147 * can be either a pointer to an actual internal object or a pointer into the
148 * AML stream itself. These types are currently:
149 *
150 * ACPI_TYPE_INTEGER
151 * ACPI_TYPE_STRING
152 * ACPI_TYPE_BUFFER
153 * ACPI_TYPE_MUTEX
154 * ACPI_TYPE_PACKAGE
155 *
156 ******************************************************************************/
157
158ACPI_STATUS
159AcpiExResolveNodeToValue (
160 ACPI_NAMESPACE_NODE **ObjectPtr,
161 ACPI_WALK_STATE *WalkState)
162
163{
164 ACPI_STATUS Status = AE_OK;
165 ACPI_OPERAND_OBJECT *SourceDesc;
166 ACPI_OPERAND_OBJECT *ObjDesc = NULL;
167 ACPI_NAMESPACE_NODE *Node;
168 ACPI_OBJECT_TYPE EntryType;
169
170
171 ACPI_FUNCTION_TRACE ("ExResolveNodeToValue");
172
173
174 /*
175 * The stack pointer points to a ACPI_NAMESPACE_NODE (Node). Get the
176 * object that is attached to the Node.
177 */
178 Node = *ObjectPtr;
179 SourceDesc = AcpiNsGetAttachedObject (Node);
180 EntryType = AcpiNsGetType ((ACPI_HANDLE) Node);
181
182 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n",
183 Node, SourceDesc, AcpiUtGetTypeName (EntryType)));
184
185 if (EntryType == ACPI_TYPE_LOCAL_ALIAS)
186 {
187 /* There is always exactly one level of indirection */
188
189 Node = (ACPI_NAMESPACE_NODE *) Node->Object;
190 SourceDesc = AcpiNsGetAttachedObject (Node);
191 EntryType = AcpiNsGetType ((ACPI_HANDLE) Node);
192 *ObjectPtr = Node;
193 }
194
195 /*
196 * Several object types require no further processing:
197 * 1) Devices rarely have an attached object, return the Node
198 * 2) Method locals and arguments have a pseudo-Node
199 */
200 if (EntryType == ACPI_TYPE_DEVICE ||
201 (Node->Flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL)))
202 {
203 return_ACPI_STATUS (AE_OK);
204 }
205
206 if (!SourceDesc)
207 {
208 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No object attached to node %p\n",
209 Node));
210 return_ACPI_STATUS (AE_AML_NO_OPERAND);
211 }
212
213 /*
214 * Action is based on the type of the Node, which indicates the type
215 * of the attached object or pointer
216 */
217 switch (EntryType)
218 {
219 case ACPI_TYPE_PACKAGE:
220
221 if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_PACKAGE)
222 {
223 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Object not a Package, type %s\n",
224 AcpiUtGetObjectTypeName (SourceDesc)));
225 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
226 }
227
228 Status = AcpiDsGetPackageArguments (SourceDesc);
229 if (ACPI_SUCCESS (Status))
230 {
231 /* Return an additional reference to the object */
232
233 ObjDesc = SourceDesc;
234 AcpiUtAddReference (ObjDesc);
235 }
236 break;
237
238
239 case ACPI_TYPE_BUFFER:
240
241 if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_BUFFER)
242 {
243 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Object not a Buffer, type %s\n",
244 AcpiUtGetObjectTypeName (SourceDesc)));
245 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
246 }
247
248 Status = AcpiDsGetBufferArguments (SourceDesc);
249 if (ACPI_SUCCESS (Status))
250 {
251 /* Return an additional reference to the object */
252
253 ObjDesc = SourceDesc;
254 AcpiUtAddReference (ObjDesc);
255 }
256 break;
257
258
259 case ACPI_TYPE_STRING:
260
261 if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_STRING)
262 {
263 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Object not a String, type %s\n",
264 AcpiUtGetObjectTypeName (SourceDesc)));
265 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
266 }
267
268 /* Return an additional reference to the object */
269
270 ObjDesc = SourceDesc;
271 AcpiUtAddReference (ObjDesc);
272 break;
273
274
275 case ACPI_TYPE_INTEGER:
276
277 if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_INTEGER)
278 {
279 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Object not a Integer, type %s\n",
280 AcpiUtGetObjectTypeName (SourceDesc)));
281 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
282 }
283
284 /* Return an additional reference to the object */
285
286 ObjDesc = SourceDesc;
287 AcpiUtAddReference (ObjDesc);
288 break;
289
290
291 case ACPI_TYPE_BUFFER_FIELD:
292 case ACPI_TYPE_LOCAL_REGION_FIELD:
293 case ACPI_TYPE_LOCAL_BANK_FIELD:
294 case ACPI_TYPE_LOCAL_INDEX_FIELD:
295
296 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "FieldRead Node=%p SourceDesc=%p Type=%X\n",
297 Node, SourceDesc, EntryType));
298
299 Status = AcpiExReadDataFromField (WalkState, SourceDesc, &ObjDesc);
300 break;
301
302 /*
303 * For these objects, just return the object attached to the Node
304 */
305 case ACPI_TYPE_MUTEX:
306 case ACPI_TYPE_METHOD:
307 case ACPI_TYPE_POWER:
308 case ACPI_TYPE_PROCESSOR:
309 case ACPI_TYPE_THERMAL:
310 case ACPI_TYPE_EVENT:
311 case ACPI_TYPE_REGION:
312
313 /* Return an additional reference to the object */
314
315 ObjDesc = SourceDesc;
316 AcpiUtAddReference (ObjDesc);
317 break;
318
319
320 /* TYPE_ANY is untyped, and thus there is no object associated with it */
321
322 case ACPI_TYPE_ANY:
323
324 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Untyped entry %p, no attached object!\n",
325 Node));
326
327 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */
328
329
330 case ACPI_TYPE_LOCAL_REFERENCE:
331
332 switch (SourceDesc->Reference.Opcode)
333 {
334 case AML_LOAD_OP:
335
336 /* This is a DdbHandle */
337 /* Return an additional reference to the object */
338
339 ObjDesc = SourceDesc;
340 AcpiUtAddReference (ObjDesc);
341 break;
342
343 default:
344 /* No named references are allowed here */
345
346 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unsupported Reference opcode %X (%s)\n",
347 SourceDesc->Reference.Opcode,
348 AcpiPsGetOpcodeName (SourceDesc->Reference.Opcode)));
349
350 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
351 }
352 break;
353
354
355 /* Default case is for unknown types */
356
357 default:
358
359 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Node %p - Unknown object type %X\n",
360 Node, EntryType));
361
362 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
363
364 } /* switch (EntryType) */
365
366
367 /* Put the object descriptor on the stack */
368
369 *ObjectPtr = (void *) ObjDesc;
370 return_ACPI_STATUS (Status);
371}
372
373
| 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#define __EXRESNTE_C__
119
120#include "acpi.h"
121#include "acdispat.h"
122#include "acinterp.h"
123#include "acnamesp.h"
124#include "acparser.h"
125#include "amlcode.h"
126
127
128#define _COMPONENT ACPI_EXECUTER
129 ACPI_MODULE_NAME ("exresnte")
130
131
132/*******************************************************************************
133 *
134 * FUNCTION: AcpiExResolveNodeToValue
135 *
136 * PARAMETERS: ObjectPtr - Pointer to a location that contains
137 * a pointer to a NS node, and will receive a
138 * pointer to the resolved object.
139 * WalkState - Current state. Valid only if executing AML
140 * code. NULL if simply resolving an object
141 *
142 * RETURN: Status
143 *
144 * DESCRIPTION: Resolve a Namespace node to a valued object
145 *
146 * Note: for some of the data types, the pointer attached to the Node
147 * can be either a pointer to an actual internal object or a pointer into the
148 * AML stream itself. These types are currently:
149 *
150 * ACPI_TYPE_INTEGER
151 * ACPI_TYPE_STRING
152 * ACPI_TYPE_BUFFER
153 * ACPI_TYPE_MUTEX
154 * ACPI_TYPE_PACKAGE
155 *
156 ******************************************************************************/
157
158ACPI_STATUS
159AcpiExResolveNodeToValue (
160 ACPI_NAMESPACE_NODE **ObjectPtr,
161 ACPI_WALK_STATE *WalkState)
162
163{
164 ACPI_STATUS Status = AE_OK;
165 ACPI_OPERAND_OBJECT *SourceDesc;
166 ACPI_OPERAND_OBJECT *ObjDesc = NULL;
167 ACPI_NAMESPACE_NODE *Node;
168 ACPI_OBJECT_TYPE EntryType;
169
170
171 ACPI_FUNCTION_TRACE ("ExResolveNodeToValue");
172
173
174 /*
175 * The stack pointer points to a ACPI_NAMESPACE_NODE (Node). Get the
176 * object that is attached to the Node.
177 */
178 Node = *ObjectPtr;
179 SourceDesc = AcpiNsGetAttachedObject (Node);
180 EntryType = AcpiNsGetType ((ACPI_HANDLE) Node);
181
182 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n",
183 Node, SourceDesc, AcpiUtGetTypeName (EntryType)));
184
185 if (EntryType == ACPI_TYPE_LOCAL_ALIAS)
186 {
187 /* There is always exactly one level of indirection */
188
189 Node = (ACPI_NAMESPACE_NODE *) Node->Object;
190 SourceDesc = AcpiNsGetAttachedObject (Node);
191 EntryType = AcpiNsGetType ((ACPI_HANDLE) Node);
192 *ObjectPtr = Node;
193 }
194
195 /*
196 * Several object types require no further processing:
197 * 1) Devices rarely have an attached object, return the Node
198 * 2) Method locals and arguments have a pseudo-Node
199 */
200 if (EntryType == ACPI_TYPE_DEVICE ||
201 (Node->Flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL)))
202 {
203 return_ACPI_STATUS (AE_OK);
204 }
205
206 if (!SourceDesc)
207 {
208 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No object attached to node %p\n",
209 Node));
210 return_ACPI_STATUS (AE_AML_NO_OPERAND);
211 }
212
213 /*
214 * Action is based on the type of the Node, which indicates the type
215 * of the attached object or pointer
216 */
217 switch (EntryType)
218 {
219 case ACPI_TYPE_PACKAGE:
220
221 if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_PACKAGE)
222 {
223 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Object not a Package, type %s\n",
224 AcpiUtGetObjectTypeName (SourceDesc)));
225 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
226 }
227
228 Status = AcpiDsGetPackageArguments (SourceDesc);
229 if (ACPI_SUCCESS (Status))
230 {
231 /* Return an additional reference to the object */
232
233 ObjDesc = SourceDesc;
234 AcpiUtAddReference (ObjDesc);
235 }
236 break;
237
238
239 case ACPI_TYPE_BUFFER:
240
241 if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_BUFFER)
242 {
243 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Object not a Buffer, type %s\n",
244 AcpiUtGetObjectTypeName (SourceDesc)));
245 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
246 }
247
248 Status = AcpiDsGetBufferArguments (SourceDesc);
249 if (ACPI_SUCCESS (Status))
250 {
251 /* Return an additional reference to the object */
252
253 ObjDesc = SourceDesc;
254 AcpiUtAddReference (ObjDesc);
255 }
256 break;
257
258
259 case ACPI_TYPE_STRING:
260
261 if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_STRING)
262 {
263 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Object not a String, type %s\n",
264 AcpiUtGetObjectTypeName (SourceDesc)));
265 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
266 }
267
268 /* Return an additional reference to the object */
269
270 ObjDesc = SourceDesc;
271 AcpiUtAddReference (ObjDesc);
272 break;
273
274
275 case ACPI_TYPE_INTEGER:
276
277 if (ACPI_GET_OBJECT_TYPE (SourceDesc) != ACPI_TYPE_INTEGER)
278 {
279 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Object not a Integer, type %s\n",
280 AcpiUtGetObjectTypeName (SourceDesc)));
281 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
282 }
283
284 /* Return an additional reference to the object */
285
286 ObjDesc = SourceDesc;
287 AcpiUtAddReference (ObjDesc);
288 break;
289
290
291 case ACPI_TYPE_BUFFER_FIELD:
292 case ACPI_TYPE_LOCAL_REGION_FIELD:
293 case ACPI_TYPE_LOCAL_BANK_FIELD:
294 case ACPI_TYPE_LOCAL_INDEX_FIELD:
295
296 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "FieldRead Node=%p SourceDesc=%p Type=%X\n",
297 Node, SourceDesc, EntryType));
298
299 Status = AcpiExReadDataFromField (WalkState, SourceDesc, &ObjDesc);
300 break;
301
302 /*
303 * For these objects, just return the object attached to the Node
304 */
305 case ACPI_TYPE_MUTEX:
306 case ACPI_TYPE_METHOD:
307 case ACPI_TYPE_POWER:
308 case ACPI_TYPE_PROCESSOR:
309 case ACPI_TYPE_THERMAL:
310 case ACPI_TYPE_EVENT:
311 case ACPI_TYPE_REGION:
312
313 /* Return an additional reference to the object */
314
315 ObjDesc = SourceDesc;
316 AcpiUtAddReference (ObjDesc);
317 break;
318
319
320 /* TYPE_ANY is untyped, and thus there is no object associated with it */
321
322 case ACPI_TYPE_ANY:
323
324 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Untyped entry %p, no attached object!\n",
325 Node));
326
327 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */
328
329
330 case ACPI_TYPE_LOCAL_REFERENCE:
331
332 switch (SourceDesc->Reference.Opcode)
333 {
334 case AML_LOAD_OP:
335
336 /* This is a DdbHandle */
337 /* Return an additional reference to the object */
338
339 ObjDesc = SourceDesc;
340 AcpiUtAddReference (ObjDesc);
341 break;
342
343 default:
344 /* No named references are allowed here */
345
346 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unsupported Reference opcode %X (%s)\n",
347 SourceDesc->Reference.Opcode,
348 AcpiPsGetOpcodeName (SourceDesc->Reference.Opcode)));
349
350 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
351 }
352 break;
353
354
355 /* Default case is for unknown types */
356
357 default:
358
359 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Node %p - Unknown object type %X\n",
360 Node, EntryType));
361
362 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
363
364 } /* switch (EntryType) */
365
366
367 /* Put the object descriptor on the stack */
368
369 *ObjectPtr = (void *) ObjDesc;
370 return_ACPI_STATUS (Status);
371}
372
373
|