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1 | /****************************************************************************** |
1 | /****************************************************************************** |
2 | * |
2 | * |
3 | * Module Name: exresnte - AML Interpreter object resolution |
3 | * Module Name: exresnte - AML Interpreter object resolution |
4 | * |
4 | * |
5 | *****************************************************************************/ |
5 | *****************************************************************************/ |
6 | 6 | ||
7 | /****************************************************************************** |
7 | /****************************************************************************** |
8 | * |
8 | * |
9 | * 1. Copyright Notice |
9 | * 1. Copyright Notice |
10 | * |
10 | * |
11 | * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. |
11 | * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp. |
12 | * All rights reserved. |
12 | * All rights reserved. |
13 | * |
13 | * |
14 | * 2. License |
14 | * 2. License |
15 | * |
15 | * |
16 | * 2.1. This is your license from Intel Corp. under its intellectual property |
16 | * 2.1. This is your license from Intel Corp. under its intellectual property |
17 | * rights. You may have additional license terms from the party that provided |
17 | * rights. You may have additional license terms from the party that provided |
18 | * you this software, covering your right to use that party's intellectual |
18 | * you this software, covering your right to use that party's intellectual |
19 | * property rights. |
19 | * property rights. |
20 | * |
20 | * |
21 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
21 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
22 | * copy of the source code appearing in this file ("Covered Code") an |
22 | * copy of the source code appearing in this file ("Covered Code") an |
23 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
23 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
24 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
24 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
25 | * make derivatives, distribute, use and display any portion of the Covered |
25 | * make derivatives, distribute, use and display any portion of the Covered |
26 | * Code in any form, with the right to sublicense such rights; and |
26 | * Code in any form, with the right to sublicense such rights; and |
27 | * |
27 | * |
28 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
28 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
29 | * license (with the right to sublicense), under only those claims of Intel |
29 | * license (with the right to sublicense), under only those claims of Intel |
30 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
30 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
31 | * offer to sell, and import the Covered Code and derivative works thereof |
31 | * offer to sell, and import the Covered Code and derivative works thereof |
32 | * solely to the minimum extent necessary to exercise the above copyright |
32 | * solely to the minimum extent necessary to exercise the above copyright |
33 | * license, and in no event shall the patent license extend to any additions |
33 | * license, and in no event shall the patent license extend to any additions |
34 | * to or modifications of the Original Intel Code. No other license or right |
34 | * to or modifications of the Original Intel Code. No other license or right |
35 | * is granted directly or by implication, estoppel or otherwise; |
35 | * is granted directly or by implication, estoppel or otherwise; |
36 | * |
36 | * |
37 | * The above copyright and patent license is granted only if the following |
37 | * The above copyright and patent license is granted only if the following |
38 | * conditions are met: |
38 | * conditions are met: |
39 | * |
39 | * |
40 | * 3. Conditions |
40 | * 3. Conditions |
41 | * |
41 | * |
42 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
42 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
43 | * Redistribution of source code of any substantial portion of the Covered |
43 | * Redistribution of source code of any substantial portion of the Covered |
44 | * Code or modification with rights to further distribute source must include |
44 | * Code or modification with rights to further distribute source must include |
45 | * the above Copyright Notice, the above License, this list of Conditions, |
45 | * the above Copyright Notice, the above License, this list of Conditions, |
46 | * and the following Disclaimer and Export Compliance provision. In addition, |
46 | * and the following Disclaimer and Export Compliance provision. In addition, |
47 | * Licensee must cause all Covered Code to which Licensee contributes to |
47 | * Licensee must cause all Covered Code to which Licensee contributes to |
48 | * contain a file documenting the changes Licensee made to create that Covered |
48 | * contain a file documenting the changes Licensee made to create that Covered |
49 | * Code and the date of any change. Licensee must include in that file the |
49 | * Code and the date of any change. Licensee must include in that file the |
50 | * documentation of any changes made by any predecessor Licensee. Licensee |
50 | * documentation of any changes made by any predecessor Licensee. Licensee |
51 | * must include a prominent statement that the modification is derived, |
51 | * must include a prominent statement that the modification is derived, |
52 | * directly or indirectly, from Original Intel Code. |
52 | * directly or indirectly, from Original Intel Code. |
53 | * |
53 | * |
54 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
54 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
55 | * Redistribution of source code of any substantial portion of the Covered |
55 | * Redistribution of source code of any substantial portion of the Covered |
56 | * Code or modification without rights to further distribute source must |
56 | * Code or modification without rights to further distribute source must |
57 | * include the following Disclaimer and Export Compliance provision in the |
57 | * include the following Disclaimer and Export Compliance provision in the |
58 | * documentation and/or other materials provided with distribution. In |
58 | * documentation and/or other materials provided with distribution. In |
59 | * addition, Licensee may not authorize further sublicense of source of any |
59 | * addition, Licensee may not authorize further sublicense of source of any |
60 | * portion of the Covered Code, and must include terms to the effect that the |
60 | * portion of the Covered Code, and must include terms to the effect that the |
61 | * license from Licensee to its licensee is limited to the intellectual |
61 | * license from Licensee to its licensee is limited to the intellectual |
62 | * property embodied in the software Licensee provides to its licensee, and |
62 | * property embodied in the software Licensee provides to its licensee, and |
63 | * not to intellectual property embodied in modifications its licensee may |
63 | * not to intellectual property embodied in modifications its licensee may |
64 | * make. |
64 | * make. |
65 | * |
65 | * |
66 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
66 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
67 | * substantial portion of the Covered Code or modification must reproduce the |
67 | * substantial portion of the Covered Code or modification must reproduce the |
68 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
68 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
69 | * provision in the documentation and/or other materials provided with the |
69 | * provision in the documentation and/or other materials provided with the |
70 | * distribution. |
70 | * distribution. |
71 | * |
71 | * |
72 | * 3.4. Intel retains all right, title, and interest in and to the Original |
72 | * 3.4. Intel retains all right, title, and interest in and to the Original |
73 | * Intel Code. |
73 | * Intel Code. |
74 | * |
74 | * |
75 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
75 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
76 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
76 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
77 | * other dealings in products derived from or relating to the Covered Code |
77 | * other dealings in products derived from or relating to the Covered Code |
78 | * without prior written authorization from Intel. |
78 | * without prior written authorization from Intel. |
79 | * |
79 | * |
80 | * 4. Disclaimer and Export Compliance |
80 | * 4. Disclaimer and Export Compliance |
81 | * |
81 | * |
82 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
82 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
83 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
83 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
84 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
84 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
85 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
85 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
86 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
86 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
87 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
87 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
88 | * PARTICULAR PURPOSE. |
88 | * PARTICULAR PURPOSE. |
89 | * |
89 | * |
90 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
90 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
91 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
91 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
92 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
92 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
93 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
93 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
94 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
94 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
95 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
95 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
96 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
96 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
97 | * LIMITED REMEDY. |
97 | * LIMITED REMEDY. |
98 | * |
98 | * |
99 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
99 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
100 | * software or system incorporating such software without first obtaining any |
100 | * software or system incorporating such software without first obtaining any |
101 | * required license or other approval from the U. S. Department of Commerce or |
101 | * required license or other approval from the U. S. Department of Commerce or |
102 | * any other agency or department of the United States Government. In the |
102 | * any other agency or department of the United States Government. In the |
103 | * event Licensee exports any such software from the United States or |
103 | * event Licensee exports any such software from the United States or |
104 | * re-exports any such software from a foreign destination, Licensee shall |
104 | * re-exports any such software from a foreign destination, Licensee shall |
105 | * ensure that the distribution and export/re-export of the software is in |
105 | * ensure that the distribution and export/re-export of the software is in |
106 | * compliance with all laws, regulations, orders, or other restrictions of the |
106 | * compliance with all laws, regulations, orders, or other restrictions of the |
107 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
107 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
108 | * any of its subsidiaries will export/re-export any technical data, process, |
108 | * any of its subsidiaries will export/re-export any technical data, process, |
109 | * software, or service, directly or indirectly, to any country for which the |
109 | * software, or service, directly or indirectly, to any country for which the |
110 | * United States government or any agency thereof requires an export license, |
110 | * United States government or any agency thereof requires an export license, |
111 | * other governmental approval, or letter of assurance, without first obtaining |
111 | * other governmental approval, or letter of assurance, without first obtaining |
112 | * such license, approval or letter. |
112 | * such license, approval or letter. |
113 | * |
113 | * |
114 | *****************************************************************************/ |
114 | *****************************************************************************/ |
115 | 115 | ||
116 | #define __EXRESNTE_C__ |
116 | #define __EXRESNTE_C__ |
117 | 117 | ||
118 | #include "acpi.h" |
118 | #include "acpi.h" |
119 | #include "accommon.h" |
119 | #include "accommon.h" |
120 | #include "acdispat.h" |
120 | #include "acdispat.h" |
121 | #include "acinterp.h" |
121 | #include "acinterp.h" |
122 | #include "acnamesp.h" |
122 | #include "acnamesp.h" |
123 | 123 | ||
124 | 124 | ||
125 | #define _COMPONENT ACPI_EXECUTER |
125 | #define _COMPONENT ACPI_EXECUTER |
126 | ACPI_MODULE_NAME ("exresnte") |
126 | ACPI_MODULE_NAME ("exresnte") |
127 | 127 | ||
128 | 128 | ||
129 | /******************************************************************************* |
129 | /******************************************************************************* |
130 | * |
130 | * |
131 | * FUNCTION: AcpiExResolveNodeToValue |
131 | * FUNCTION: AcpiExResolveNodeToValue |
132 | * |
132 | * |
133 | * PARAMETERS: ObjectPtr - Pointer to a location that contains |
133 | * PARAMETERS: ObjectPtr - Pointer to a location that contains |
134 | * a pointer to a NS node, and will receive a |
134 | * a pointer to a NS node, and will receive a |
135 | * pointer to the resolved object. |
135 | * pointer to the resolved object. |
136 | * WalkState - Current state. Valid only if executing AML |
136 | * WalkState - Current state. Valid only if executing AML |
137 | * code. NULL if simply resolving an object |
137 | * code. NULL if simply resolving an object |
138 | * |
138 | * |
139 | * RETURN: Status |
139 | * RETURN: Status |
140 | * |
140 | * |
141 | * DESCRIPTION: Resolve a Namespace node to a valued object |
141 | * DESCRIPTION: Resolve a Namespace node to a valued object |
142 | * |
142 | * |
143 | * Note: for some of the data types, the pointer attached to the Node |
143 | * Note: for some of the data types, the pointer attached to the Node |
144 | * can be either a pointer to an actual internal object or a pointer into the |
144 | * can be either a pointer to an actual internal object or a pointer into the |
145 | * AML stream itself. These types are currently: |
145 | * AML stream itself. These types are currently: |
146 | * |
146 | * |
147 | * ACPI_TYPE_INTEGER |
147 | * ACPI_TYPE_INTEGER |
148 | * ACPI_TYPE_STRING |
148 | * ACPI_TYPE_STRING |
149 | * ACPI_TYPE_BUFFER |
149 | * ACPI_TYPE_BUFFER |
150 | * ACPI_TYPE_MUTEX |
150 | * ACPI_TYPE_MUTEX |
151 | * ACPI_TYPE_PACKAGE |
151 | * ACPI_TYPE_PACKAGE |
152 | * |
152 | * |
153 | ******************************************************************************/ |
153 | ******************************************************************************/ |
154 | 154 | ||
155 | ACPI_STATUS |
155 | ACPI_STATUS |
156 | AcpiExResolveNodeToValue ( |
156 | AcpiExResolveNodeToValue ( |
157 | ACPI_NAMESPACE_NODE **ObjectPtr, |
157 | ACPI_NAMESPACE_NODE **ObjectPtr, |
158 | ACPI_WALK_STATE *WalkState) |
158 | ACPI_WALK_STATE *WalkState) |
159 | 159 | ||
160 | { |
160 | { |
161 | ACPI_STATUS Status = AE_OK; |
161 | ACPI_STATUS Status = AE_OK; |
162 | ACPI_OPERAND_OBJECT *SourceDesc; |
162 | ACPI_OPERAND_OBJECT *SourceDesc; |
163 | ACPI_OPERAND_OBJECT *ObjDesc = NULL; |
163 | ACPI_OPERAND_OBJECT *ObjDesc = NULL; |
164 | ACPI_NAMESPACE_NODE *Node; |
164 | ACPI_NAMESPACE_NODE *Node; |
165 | ACPI_OBJECT_TYPE EntryType; |
165 | ACPI_OBJECT_TYPE EntryType; |
166 | 166 | ||
167 | 167 | ||
168 | ACPI_FUNCTION_TRACE (ExResolveNodeToValue); |
168 | ACPI_FUNCTION_TRACE (ExResolveNodeToValue); |
169 | 169 | ||
170 | 170 | ||
171 | /* |
171 | /* |
172 | * The stack pointer points to a ACPI_NAMESPACE_NODE (Node). Get the |
172 | * The stack pointer points to a ACPI_NAMESPACE_NODE (Node). Get the |
173 | * object that is attached to the Node. |
173 | * object that is attached to the Node. |
174 | */ |
174 | */ |
175 | Node = *ObjectPtr; |
175 | Node = *ObjectPtr; |
176 | SourceDesc = AcpiNsGetAttachedObject (Node); |
176 | SourceDesc = AcpiNsGetAttachedObject (Node); |
177 | EntryType = AcpiNsGetType ((ACPI_HANDLE) Node); |
177 | EntryType = AcpiNsGetType ((ACPI_HANDLE) Node); |
178 | 178 | ||
179 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n", |
179 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n", |
180 | Node, SourceDesc, AcpiUtGetTypeName (EntryType))); |
180 | Node, SourceDesc, AcpiUtGetTypeName (EntryType))); |
181 | 181 | ||
182 | if ((EntryType == ACPI_TYPE_LOCAL_ALIAS) || |
182 | if ((EntryType == ACPI_TYPE_LOCAL_ALIAS) || |
183 | (EntryType == ACPI_TYPE_LOCAL_METHOD_ALIAS)) |
183 | (EntryType == ACPI_TYPE_LOCAL_METHOD_ALIAS)) |
184 | { |
184 | { |
185 | /* There is always exactly one level of indirection */ |
185 | /* There is always exactly one level of indirection */ |
186 | 186 | ||
187 | Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Node->Object); |
187 | Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Node->Object); |
188 | SourceDesc = AcpiNsGetAttachedObject (Node); |
188 | SourceDesc = AcpiNsGetAttachedObject (Node); |
189 | EntryType = AcpiNsGetType ((ACPI_HANDLE) Node); |
189 | EntryType = AcpiNsGetType ((ACPI_HANDLE) Node); |
190 | *ObjectPtr = Node; |
190 | *ObjectPtr = Node; |
191 | } |
191 | } |
192 | 192 | ||
193 | /* |
193 | /* |
194 | * Several object types require no further processing: |
194 | * Several object types require no further processing: |
195 | * 1) Device/Thermal objects don't have a "real" subobject, return the Node |
195 | * 1) Device/Thermal objects don't have a "real" subobject, return the Node |
196 | * 2) Method locals and arguments have a pseudo-Node |
196 | * 2) Method locals and arguments have a pseudo-Node |
197 | * 3) 10/2007: Added method type to assist with Package construction. |
197 | * 3) 10/2007: Added method type to assist with Package construction. |
198 | */ |
198 | */ |
199 | if ((EntryType == ACPI_TYPE_DEVICE) || |
199 | if ((EntryType == ACPI_TYPE_DEVICE) || |
200 | (EntryType == ACPI_TYPE_THERMAL) || |
200 | (EntryType == ACPI_TYPE_THERMAL) || |
201 | (EntryType == ACPI_TYPE_METHOD) || |
201 | (EntryType == ACPI_TYPE_METHOD) || |
202 | (Node->Flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) |
202 | (Node->Flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) |
203 | { |
203 | { |
204 | return_ACPI_STATUS (AE_OK); |
204 | return_ACPI_STATUS (AE_OK); |
205 | } |
205 | } |
206 | 206 | ||
207 | if (!SourceDesc) |
207 | if (!SourceDesc) |
208 | { |
208 | { |
209 | ACPI_ERROR ((AE_INFO, "No object attached to node %p", |
209 | ACPI_ERROR ((AE_INFO, "No object attached to node %p", |
210 | Node)); |
210 | Node)); |
211 | return_ACPI_STATUS (AE_AML_NO_OPERAND); |
211 | return_ACPI_STATUS (AE_AML_NO_OPERAND); |
212 | } |
212 | } |
213 | 213 | ||
214 | /* |
214 | /* |
215 | * Action is based on the type of the Node, which indicates the type |
215 | * Action is based on the type of the Node, which indicates the type |
216 | * of the attached object or pointer |
216 | * of the attached object or pointer |
217 | */ |
217 | */ |
218 | switch (EntryType) |
218 | switch (EntryType) |
219 | { |
219 | { |
220 | case ACPI_TYPE_PACKAGE: |
220 | case ACPI_TYPE_PACKAGE: |
221 | 221 | ||
222 | if (SourceDesc->Common.Type != ACPI_TYPE_PACKAGE) |
222 | if (SourceDesc->Common.Type != ACPI_TYPE_PACKAGE) |
223 | { |
223 | { |
224 | ACPI_ERROR ((AE_INFO, "Object not a Package, type %s", |
224 | ACPI_ERROR ((AE_INFO, "Object not a Package, type %s", |
225 | AcpiUtGetObjectTypeName (SourceDesc))); |
225 | AcpiUtGetObjectTypeName (SourceDesc))); |
226 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
226 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
227 | } |
227 | } |
228 | 228 | ||
229 | Status = AcpiDsGetPackageArguments (SourceDesc); |
229 | Status = AcpiDsGetPackageArguments (SourceDesc); |
230 | if (ACPI_SUCCESS (Status)) |
230 | if (ACPI_SUCCESS (Status)) |
231 | { |
231 | { |
232 | /* Return an additional reference to the object */ |
232 | /* Return an additional reference to the object */ |
233 | 233 | ||
234 | ObjDesc = SourceDesc; |
234 | ObjDesc = SourceDesc; |
235 | AcpiUtAddReference (ObjDesc); |
235 | AcpiUtAddReference (ObjDesc); |
236 | } |
236 | } |
237 | break; |
237 | break; |
238 | 238 | ||
239 | 239 | ||
240 | case ACPI_TYPE_BUFFER: |
240 | case ACPI_TYPE_BUFFER: |
241 | 241 | ||
242 | if (SourceDesc->Common.Type != ACPI_TYPE_BUFFER) |
242 | if (SourceDesc->Common.Type != ACPI_TYPE_BUFFER) |
243 | { |
243 | { |
244 | ACPI_ERROR ((AE_INFO, "Object not a Buffer, type %s", |
244 | ACPI_ERROR ((AE_INFO, "Object not a Buffer, type %s", |
245 | AcpiUtGetObjectTypeName (SourceDesc))); |
245 | AcpiUtGetObjectTypeName (SourceDesc))); |
246 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
246 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
247 | } |
247 | } |
248 | 248 | ||
249 | Status = AcpiDsGetBufferArguments (SourceDesc); |
249 | Status = AcpiDsGetBufferArguments (SourceDesc); |
250 | if (ACPI_SUCCESS (Status)) |
250 | if (ACPI_SUCCESS (Status)) |
251 | { |
251 | { |
252 | /* Return an additional reference to the object */ |
252 | /* Return an additional reference to the object */ |
253 | 253 | ||
254 | ObjDesc = SourceDesc; |
254 | ObjDesc = SourceDesc; |
255 | AcpiUtAddReference (ObjDesc); |
255 | AcpiUtAddReference (ObjDesc); |
256 | } |
256 | } |
257 | break; |
257 | break; |
258 | 258 | ||
259 | 259 | ||
260 | case ACPI_TYPE_STRING: |
260 | case ACPI_TYPE_STRING: |
261 | 261 | ||
262 | if (SourceDesc->Common.Type != ACPI_TYPE_STRING) |
262 | if (SourceDesc->Common.Type != ACPI_TYPE_STRING) |
263 | { |
263 | { |
264 | ACPI_ERROR ((AE_INFO, "Object not a String, type %s", |
264 | ACPI_ERROR ((AE_INFO, "Object not a String, type %s", |
265 | AcpiUtGetObjectTypeName (SourceDesc))); |
265 | AcpiUtGetObjectTypeName (SourceDesc))); |
266 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
266 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
267 | } |
267 | } |
268 | 268 | ||
269 | /* Return an additional reference to the object */ |
269 | /* Return an additional reference to the object */ |
270 | 270 | ||
271 | ObjDesc = SourceDesc; |
271 | ObjDesc = SourceDesc; |
272 | AcpiUtAddReference (ObjDesc); |
272 | AcpiUtAddReference (ObjDesc); |
273 | break; |
273 | break; |
274 | 274 | ||
275 | 275 | ||
276 | case ACPI_TYPE_INTEGER: |
276 | case ACPI_TYPE_INTEGER: |
277 | 277 | ||
278 | if (SourceDesc->Common.Type != ACPI_TYPE_INTEGER) |
278 | if (SourceDesc->Common.Type != ACPI_TYPE_INTEGER) |
279 | { |
279 | { |
280 | ACPI_ERROR ((AE_INFO, "Object not a Integer, type %s", |
280 | ACPI_ERROR ((AE_INFO, "Object not a Integer, type %s", |
281 | AcpiUtGetObjectTypeName (SourceDesc))); |
281 | AcpiUtGetObjectTypeName (SourceDesc))); |
282 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
282 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
283 | } |
283 | } |
284 | 284 | ||
285 | /* Return an additional reference to the object */ |
285 | /* Return an additional reference to the object */ |
286 | 286 | ||
287 | ObjDesc = SourceDesc; |
287 | ObjDesc = SourceDesc; |
288 | AcpiUtAddReference (ObjDesc); |
288 | AcpiUtAddReference (ObjDesc); |
289 | break; |
289 | break; |
290 | 290 | ||
291 | 291 | ||
292 | case ACPI_TYPE_BUFFER_FIELD: |
292 | case ACPI_TYPE_BUFFER_FIELD: |
293 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
293 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
294 | case ACPI_TYPE_LOCAL_BANK_FIELD: |
294 | case ACPI_TYPE_LOCAL_BANK_FIELD: |
295 | case ACPI_TYPE_LOCAL_INDEX_FIELD: |
295 | case ACPI_TYPE_LOCAL_INDEX_FIELD: |
296 | 296 | ||
297 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
297 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
298 | "FieldRead Node=%p SourceDesc=%p Type=%X\n", |
298 | "FieldRead Node=%p SourceDesc=%p Type=%X\n", |
299 | Node, SourceDesc, EntryType)); |
299 | Node, SourceDesc, EntryType)); |
300 | 300 | ||
301 | Status = AcpiExReadDataFromField (WalkState, SourceDesc, &ObjDesc); |
301 | Status = AcpiExReadDataFromField (WalkState, SourceDesc, &ObjDesc); |
302 | break; |
302 | break; |
303 | 303 | ||
304 | /* For these objects, just return the object attached to the Node */ |
304 | /* For these objects, just return the object attached to the Node */ |
305 | 305 | ||
306 | case ACPI_TYPE_MUTEX: |
306 | case ACPI_TYPE_MUTEX: |
307 | case ACPI_TYPE_POWER: |
307 | case ACPI_TYPE_POWER: |
308 | case ACPI_TYPE_PROCESSOR: |
308 | case ACPI_TYPE_PROCESSOR: |
309 | case ACPI_TYPE_EVENT: |
309 | case ACPI_TYPE_EVENT: |
310 | case ACPI_TYPE_REGION: |
310 | case ACPI_TYPE_REGION: |
311 | 311 | ||
312 | /* Return an additional reference to the object */ |
312 | /* Return an additional reference to the object */ |
313 | 313 | ||
314 | ObjDesc = SourceDesc; |
314 | ObjDesc = SourceDesc; |
315 | AcpiUtAddReference (ObjDesc); |
315 | AcpiUtAddReference (ObjDesc); |
316 | break; |
316 | break; |
317 | 317 | ||
318 | /* TYPE_ANY is untyped, and thus there is no object associated with it */ |
318 | /* TYPE_ANY is untyped, and thus there is no object associated with it */ |
319 | 319 | ||
320 | case ACPI_TYPE_ANY: |
320 | case ACPI_TYPE_ANY: |
321 | 321 | ||
322 | ACPI_ERROR ((AE_INFO, |
322 | ACPI_ERROR ((AE_INFO, |
323 | "Untyped entry %p, no attached object!", Node)); |
323 | "Untyped entry %p, no attached object!", Node)); |
324 | 324 | ||
325 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */ |
325 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */ |
326 | 326 | ||
327 | 327 | ||
328 | case ACPI_TYPE_LOCAL_REFERENCE: |
328 | case ACPI_TYPE_LOCAL_REFERENCE: |
329 | 329 | ||
330 | switch (SourceDesc->Reference.Class) |
330 | switch (SourceDesc->Reference.Class) |
331 | { |
331 | { |
332 | case ACPI_REFCLASS_TABLE: /* This is a DdbHandle */ |
332 | case ACPI_REFCLASS_TABLE: /* This is a DdbHandle */ |
333 | case ACPI_REFCLASS_REFOF: |
333 | case ACPI_REFCLASS_REFOF: |
334 | case ACPI_REFCLASS_INDEX: |
334 | case ACPI_REFCLASS_INDEX: |
335 | 335 | ||
336 | /* Return an additional reference to the object */ |
336 | /* Return an additional reference to the object */ |
337 | 337 | ||
338 | ObjDesc = SourceDesc; |
338 | ObjDesc = SourceDesc; |
339 | AcpiUtAddReference (ObjDesc); |
339 | AcpiUtAddReference (ObjDesc); |
340 | break; |
340 | break; |
341 | 341 | ||
342 | default: |
342 | default: |
343 | /* No named references are allowed here */ |
343 | /* No named references are allowed here */ |
344 | 344 | ||
345 | ACPI_ERROR ((AE_INFO, |
345 | ACPI_ERROR ((AE_INFO, |
346 | "Unsupported Reference type 0x%X", |
346 | "Unsupported Reference type 0x%X", |
347 | SourceDesc->Reference.Class)); |
347 | SourceDesc->Reference.Class)); |
348 | 348 | ||
349 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
349 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
350 | } |
350 | } |
351 | break; |
351 | break; |
352 | 352 | ||
353 | 353 | ||
354 | default: |
354 | default: |
355 | 355 | ||
356 | /* Default case is for unknown types */ |
356 | /* Default case is for unknown types */ |
357 | 357 | ||
358 | ACPI_ERROR ((AE_INFO, |
358 | ACPI_ERROR ((AE_INFO, |
359 | "Node %p - Unknown object type 0x%X", |
359 | "Node %p - Unknown object type 0x%X", |
360 | Node, EntryType)); |
360 | Node, EntryType)); |
361 | 361 | ||
362 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
362 | return_ACPI_STATUS (AE_AML_OPERAND_TYPE); |
363 | 363 | ||
364 | } /* switch (EntryType) */ |
364 | } /* switch (EntryType) */ |
365 | 365 | ||
366 | 366 | ||
367 | /* Return the object descriptor */ |
367 | /* Return the object descriptor */ |
368 | 368 | ||
369 | *ObjectPtr = (void *) ObjDesc; |
369 | *ObjectPtr = (void *) ObjDesc; |
370 | return_ACPI_STATUS (Status); |
370 | return_ACPI_STATUS (Status); |
371 | } |
371 | } |