1a159c266SJung-uk Kim /*******************************************************************************
2a159c266SJung-uk Kim *
3a159c266SJung-uk Kim * Module Name: nsobject - Utilities for objects attached to namespace
4a159c266SJung-uk Kim * table entries
5a159c266SJung-uk Kim *
6a159c266SJung-uk Kim ******************************************************************************/
7a159c266SJung-uk Kim
80d84335fSJung-uk Kim /******************************************************************************
90d84335fSJung-uk Kim *
100d84335fSJung-uk Kim * 1. Copyright Notice
110d84335fSJung-uk Kim *
12722b1667SJung-uk Kim * Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp.
13a159c266SJung-uk Kim * All rights reserved.
14a159c266SJung-uk Kim *
150d84335fSJung-uk Kim * 2. License
160d84335fSJung-uk Kim *
170d84335fSJung-uk Kim * 2.1. This is your license from Intel Corp. under its intellectual property
180d84335fSJung-uk Kim * rights. You may have additional license terms from the party that provided
190d84335fSJung-uk Kim * you this software, covering your right to use that party's intellectual
200d84335fSJung-uk Kim * property rights.
210d84335fSJung-uk Kim *
220d84335fSJung-uk Kim * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
230d84335fSJung-uk Kim * copy of the source code appearing in this file ("Covered Code") an
240d84335fSJung-uk Kim * irrevocable, perpetual, worldwide license under Intel's copyrights in the
250d84335fSJung-uk Kim * base code distributed originally by Intel ("Original Intel Code") to copy,
260d84335fSJung-uk Kim * make derivatives, distribute, use and display any portion of the Covered
270d84335fSJung-uk Kim * Code in any form, with the right to sublicense such rights; and
280d84335fSJung-uk Kim *
290d84335fSJung-uk Kim * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
300d84335fSJung-uk Kim * license (with the right to sublicense), under only those claims of Intel
310d84335fSJung-uk Kim * patents that are infringed by the Original Intel Code, to make, use, sell,
320d84335fSJung-uk Kim * offer to sell, and import the Covered Code and derivative works thereof
330d84335fSJung-uk Kim * solely to the minimum extent necessary to exercise the above copyright
340d84335fSJung-uk Kim * license, and in no event shall the patent license extend to any additions
350d84335fSJung-uk Kim * to or modifications of the Original Intel Code. No other license or right
360d84335fSJung-uk Kim * is granted directly or by implication, estoppel or otherwise;
370d84335fSJung-uk Kim *
380d84335fSJung-uk Kim * The above copyright and patent license is granted only if the following
390d84335fSJung-uk Kim * conditions are met:
400d84335fSJung-uk Kim *
410d84335fSJung-uk Kim * 3. Conditions
420d84335fSJung-uk Kim *
430d84335fSJung-uk Kim * 3.1. Redistribution of Source with Rights to Further Distribute Source.
440d84335fSJung-uk Kim * Redistribution of source code of any substantial portion of the Covered
450d84335fSJung-uk Kim * Code or modification with rights to further distribute source must include
460d84335fSJung-uk Kim * the above Copyright Notice, the above License, this list of Conditions,
470d84335fSJung-uk Kim * and the following Disclaimer and Export Compliance provision. In addition,
480d84335fSJung-uk Kim * Licensee must cause all Covered Code to which Licensee contributes to
490d84335fSJung-uk Kim * contain a file documenting the changes Licensee made to create that Covered
500d84335fSJung-uk Kim * Code and the date of any change. Licensee must include in that file the
510d84335fSJung-uk Kim * documentation of any changes made by any predecessor Licensee. Licensee
520d84335fSJung-uk Kim * must include a prominent statement that the modification is derived,
530d84335fSJung-uk Kim * directly or indirectly, from Original Intel Code.
540d84335fSJung-uk Kim *
550d84335fSJung-uk Kim * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
560d84335fSJung-uk Kim * Redistribution of source code of any substantial portion of the Covered
570d84335fSJung-uk Kim * Code or modification without rights to further distribute source must
580d84335fSJung-uk Kim * include the following Disclaimer and Export Compliance provision in the
590d84335fSJung-uk Kim * documentation and/or other materials provided with distribution. In
600d84335fSJung-uk Kim * addition, Licensee may not authorize further sublicense of source of any
610d84335fSJung-uk Kim * portion of the Covered Code, and must include terms to the effect that the
620d84335fSJung-uk Kim * license from Licensee to its licensee is limited to the intellectual
630d84335fSJung-uk Kim * property embodied in the software Licensee provides to its licensee, and
640d84335fSJung-uk Kim * not to intellectual property embodied in modifications its licensee may
650d84335fSJung-uk Kim * make.
660d84335fSJung-uk Kim *
670d84335fSJung-uk Kim * 3.3. Redistribution of Executable. Redistribution in executable form of any
680d84335fSJung-uk Kim * substantial portion of the Covered Code or modification must reproduce the
690d84335fSJung-uk Kim * above Copyright Notice, and the following Disclaimer and Export Compliance
700d84335fSJung-uk Kim * provision in the documentation and/or other materials provided with the
710d84335fSJung-uk Kim * distribution.
720d84335fSJung-uk Kim *
730d84335fSJung-uk Kim * 3.4. Intel retains all right, title, and interest in and to the Original
740d84335fSJung-uk Kim * Intel Code.
750d84335fSJung-uk Kim *
760d84335fSJung-uk Kim * 3.5. Neither the name Intel nor any other trademark owned or controlled by
770d84335fSJung-uk Kim * Intel shall be used in advertising or otherwise to promote the sale, use or
780d84335fSJung-uk Kim * other dealings in products derived from or relating to the Covered Code
790d84335fSJung-uk Kim * without prior written authorization from Intel.
800d84335fSJung-uk Kim *
810d84335fSJung-uk Kim * 4. Disclaimer and Export Compliance
820d84335fSJung-uk Kim *
830d84335fSJung-uk Kim * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
840d84335fSJung-uk Kim * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
850d84335fSJung-uk Kim * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
860d84335fSJung-uk Kim * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
870d84335fSJung-uk Kim * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
880d84335fSJung-uk Kim * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
890d84335fSJung-uk Kim * PARTICULAR PURPOSE.
900d84335fSJung-uk Kim *
910d84335fSJung-uk Kim * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
920d84335fSJung-uk Kim * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
930d84335fSJung-uk Kim * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
940d84335fSJung-uk Kim * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
950d84335fSJung-uk Kim * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
960d84335fSJung-uk Kim * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
970d84335fSJung-uk Kim * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
980d84335fSJung-uk Kim * LIMITED REMEDY.
990d84335fSJung-uk Kim *
1000d84335fSJung-uk Kim * 4.3. Licensee shall not export, either directly or indirectly, any of this
1010d84335fSJung-uk Kim * software or system incorporating such software without first obtaining any
1020d84335fSJung-uk Kim * required license or other approval from the U. S. Department of Commerce or
1030d84335fSJung-uk Kim * any other agency or department of the United States Government. In the
1040d84335fSJung-uk Kim * event Licensee exports any such software from the United States or
1050d84335fSJung-uk Kim * re-exports any such software from a foreign destination, Licensee shall
1060d84335fSJung-uk Kim * ensure that the distribution and export/re-export of the software is in
1070d84335fSJung-uk Kim * compliance with all laws, regulations, orders, or other restrictions of the
1080d84335fSJung-uk Kim * U.S. Export Administration Regulations. Licensee agrees that neither it nor
1090d84335fSJung-uk Kim * any of its subsidiaries will export/re-export any technical data, process,
1100d84335fSJung-uk Kim * software, or service, directly or indirectly, to any country for which the
1110d84335fSJung-uk Kim * United States government or any agency thereof requires an export license,
1120d84335fSJung-uk Kim * other governmental approval, or letter of assurance, without first obtaining
1130d84335fSJung-uk Kim * such license, approval or letter.
1140d84335fSJung-uk Kim *
1150d84335fSJung-uk Kim *****************************************************************************
1160d84335fSJung-uk Kim *
1170d84335fSJung-uk Kim * Alternatively, you may choose to be licensed under the terms of the
1180d84335fSJung-uk Kim * following license:
1190d84335fSJung-uk Kim *
120a159c266SJung-uk Kim * Redistribution and use in source and binary forms, with or without
121a159c266SJung-uk Kim * modification, are permitted provided that the following conditions
122a159c266SJung-uk Kim * are met:
123a159c266SJung-uk Kim * 1. Redistributions of source code must retain the above copyright
124a159c266SJung-uk Kim * notice, this list of conditions, and the following disclaimer,
125a159c266SJung-uk Kim * without modification.
126a159c266SJung-uk Kim * 2. Redistributions in binary form must reproduce at minimum a disclaimer
127a159c266SJung-uk Kim * substantially similar to the "NO WARRANTY" disclaimer below
128a159c266SJung-uk Kim * ("Disclaimer") and any redistribution must be conditioned upon
129a159c266SJung-uk Kim * including a substantially similar Disclaimer requirement for further
130a159c266SJung-uk Kim * binary redistribution.
131a159c266SJung-uk Kim * 3. Neither the names of the above-listed copyright holders nor the names
132a159c266SJung-uk Kim * of any contributors may be used to endorse or promote products derived
133a159c266SJung-uk Kim * from this software without specific prior written permission.
134a159c266SJung-uk Kim *
1350d84335fSJung-uk Kim * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1360d84335fSJung-uk Kim * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1370d84335fSJung-uk Kim * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1380d84335fSJung-uk Kim * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1390d84335fSJung-uk Kim * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1400d84335fSJung-uk Kim * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1410d84335fSJung-uk Kim * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1420d84335fSJung-uk Kim * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1430d84335fSJung-uk Kim * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1440d84335fSJung-uk Kim * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1450d84335fSJung-uk Kim * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1460d84335fSJung-uk Kim *
1470d84335fSJung-uk Kim * Alternatively, you may choose to be licensed under the terms of the
148a159c266SJung-uk Kim * GNU General Public License ("GPL") version 2 as published by the Free
149a159c266SJung-uk Kim * Software Foundation.
150a159c266SJung-uk Kim *
1510d84335fSJung-uk Kim *****************************************************************************/
152a159c266SJung-uk Kim
153a159c266SJung-uk Kim #include <contrib/dev/acpica/include/acpi.h>
154a159c266SJung-uk Kim #include <contrib/dev/acpica/include/accommon.h>
155a159c266SJung-uk Kim #include <contrib/dev/acpica/include/acnamesp.h>
156a159c266SJung-uk Kim
157a159c266SJung-uk Kim
158a159c266SJung-uk Kim #define _COMPONENT ACPI_NAMESPACE
159a159c266SJung-uk Kim ACPI_MODULE_NAME ("nsobject")
160a159c266SJung-uk Kim
161a159c266SJung-uk Kim
162a159c266SJung-uk Kim /*******************************************************************************
163a159c266SJung-uk Kim *
164a159c266SJung-uk Kim * FUNCTION: AcpiNsAttachObject
165a159c266SJung-uk Kim *
166a159c266SJung-uk Kim * PARAMETERS: Node - Parent Node
167a159c266SJung-uk Kim * Object - Object to be attached
168a159c266SJung-uk Kim * Type - Type of object, or ACPI_TYPE_ANY if not
169a159c266SJung-uk Kim * known
170a159c266SJung-uk Kim *
171a159c266SJung-uk Kim * RETURN: Status
172a159c266SJung-uk Kim *
173a159c266SJung-uk Kim * DESCRIPTION: Record the given object as the value associated with the
174a159c266SJung-uk Kim * name whose ACPI_HANDLE is passed. If Object is NULL
175a159c266SJung-uk Kim * and Type is ACPI_TYPE_ANY, set the name as having no value.
176a159c266SJung-uk Kim * Note: Future may require that the Node->Flags field be passed
177a159c266SJung-uk Kim * as a parameter.
178a159c266SJung-uk Kim *
179a159c266SJung-uk Kim * MUTEX: Assumes namespace is locked
180a159c266SJung-uk Kim *
181a159c266SJung-uk Kim ******************************************************************************/
182a159c266SJung-uk Kim
183a159c266SJung-uk Kim ACPI_STATUS
AcpiNsAttachObject(ACPI_NAMESPACE_NODE * Node,ACPI_OPERAND_OBJECT * Object,ACPI_OBJECT_TYPE Type)184a159c266SJung-uk Kim AcpiNsAttachObject (
185a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *Node,
186a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *Object,
187a159c266SJung-uk Kim ACPI_OBJECT_TYPE Type)
188a159c266SJung-uk Kim {
189a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *ObjDesc;
190a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *LastObjDesc;
191a159c266SJung-uk Kim ACPI_OBJECT_TYPE ObjectType = ACPI_TYPE_ANY;
192a159c266SJung-uk Kim
193a159c266SJung-uk Kim
194a159c266SJung-uk Kim ACPI_FUNCTION_TRACE (NsAttachObject);
195a159c266SJung-uk Kim
196a159c266SJung-uk Kim
197a159c266SJung-uk Kim /*
198a159c266SJung-uk Kim * Parameter validation
199a159c266SJung-uk Kim */
200a159c266SJung-uk Kim if (!Node)
201a159c266SJung-uk Kim {
202a159c266SJung-uk Kim /* Invalid handle */
203a159c266SJung-uk Kim
204a159c266SJung-uk Kim ACPI_ERROR ((AE_INFO, "Null NamedObj handle"));
205a159c266SJung-uk Kim return_ACPI_STATUS (AE_BAD_PARAMETER);
206a159c266SJung-uk Kim }
207a159c266SJung-uk Kim
208a159c266SJung-uk Kim if (!Object && (ACPI_TYPE_ANY != Type))
209a159c266SJung-uk Kim {
210a159c266SJung-uk Kim /* Null object */
211a159c266SJung-uk Kim
212a159c266SJung-uk Kim ACPI_ERROR ((AE_INFO,
213a159c266SJung-uk Kim "Null object, but type not ACPI_TYPE_ANY"));
214a159c266SJung-uk Kim return_ACPI_STATUS (AE_BAD_PARAMETER);
215a159c266SJung-uk Kim }
216a159c266SJung-uk Kim
217a159c266SJung-uk Kim if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED)
218a159c266SJung-uk Kim {
219a159c266SJung-uk Kim /* Not a name handle */
220a159c266SJung-uk Kim
221a159c266SJung-uk Kim ACPI_ERROR ((AE_INFO, "Invalid handle %p [%s]",
222a159c266SJung-uk Kim Node, AcpiUtGetDescriptorName (Node)));
223a159c266SJung-uk Kim return_ACPI_STATUS (AE_BAD_PARAMETER);
224a159c266SJung-uk Kim }
225a159c266SJung-uk Kim
226a159c266SJung-uk Kim /* Check if this object is already attached */
227a159c266SJung-uk Kim
228a159c266SJung-uk Kim if (Node->Object == Object)
229a159c266SJung-uk Kim {
230a159c266SJung-uk Kim ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
231a159c266SJung-uk Kim "Obj %p already installed in NameObj %p\n",
232a159c266SJung-uk Kim Object, Node));
233a159c266SJung-uk Kim
234a159c266SJung-uk Kim return_ACPI_STATUS (AE_OK);
235a159c266SJung-uk Kim }
236a159c266SJung-uk Kim
237a159c266SJung-uk Kim /* If null object, we will just install it */
238a159c266SJung-uk Kim
239a159c266SJung-uk Kim if (!Object)
240a159c266SJung-uk Kim {
241a159c266SJung-uk Kim ObjDesc = NULL;
242a159c266SJung-uk Kim ObjectType = ACPI_TYPE_ANY;
243a159c266SJung-uk Kim }
244a159c266SJung-uk Kim
245a159c266SJung-uk Kim /*
246a159c266SJung-uk Kim * If the source object is a namespace Node with an attached object,
247a159c266SJung-uk Kim * we will use that (attached) object
248a159c266SJung-uk Kim */
249a159c266SJung-uk Kim else if ((ACPI_GET_DESCRIPTOR_TYPE (Object) == ACPI_DESC_TYPE_NAMED) &&
250a159c266SJung-uk Kim ((ACPI_NAMESPACE_NODE *) Object)->Object)
251a159c266SJung-uk Kim {
252a159c266SJung-uk Kim /*
253a159c266SJung-uk Kim * Value passed is a name handle and that name has a
254a159c266SJung-uk Kim * non-null value. Use that name's value and type.
255a159c266SJung-uk Kim */
256a159c266SJung-uk Kim ObjDesc = ((ACPI_NAMESPACE_NODE *) Object)->Object;
257a159c266SJung-uk Kim ObjectType = ((ACPI_NAMESPACE_NODE *) Object)->Type;
258a159c266SJung-uk Kim }
259a159c266SJung-uk Kim
260a159c266SJung-uk Kim /*
261a159c266SJung-uk Kim * Otherwise, we will use the parameter object, but we must type
262a159c266SJung-uk Kim * it first
263a159c266SJung-uk Kim */
264a159c266SJung-uk Kim else
265a159c266SJung-uk Kim {
266a159c266SJung-uk Kim ObjDesc = (ACPI_OPERAND_OBJECT *) Object;
267a159c266SJung-uk Kim
268a159c266SJung-uk Kim /* Use the given type */
269a159c266SJung-uk Kim
270a159c266SJung-uk Kim ObjectType = Type;
271a159c266SJung-uk Kim }
272a159c266SJung-uk Kim
273a159c266SJung-uk Kim ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n",
274a159c266SJung-uk Kim ObjDesc, Node, AcpiUtGetNodeName (Node)));
275a159c266SJung-uk Kim
276a159c266SJung-uk Kim /* Detach an existing attached object if present */
277a159c266SJung-uk Kim
278a159c266SJung-uk Kim if (Node->Object)
279a159c266SJung-uk Kim {
280a159c266SJung-uk Kim AcpiNsDetachObject (Node);
281a159c266SJung-uk Kim }
282a159c266SJung-uk Kim
283a159c266SJung-uk Kim if (ObjDesc)
284a159c266SJung-uk Kim {
285a159c266SJung-uk Kim /*
286a159c266SJung-uk Kim * Must increment the new value's reference count
287a159c266SJung-uk Kim * (if it is an internal object)
288a159c266SJung-uk Kim */
289a159c266SJung-uk Kim AcpiUtAddReference (ObjDesc);
290a159c266SJung-uk Kim
291a159c266SJung-uk Kim /*
292a159c266SJung-uk Kim * Handle objects with multiple descriptors - walk
293a159c266SJung-uk Kim * to the end of the descriptor list
294a159c266SJung-uk Kim */
295a159c266SJung-uk Kim LastObjDesc = ObjDesc;
296a159c266SJung-uk Kim while (LastObjDesc->Common.NextObject)
297a159c266SJung-uk Kim {
298a159c266SJung-uk Kim LastObjDesc = LastObjDesc->Common.NextObject;
299a159c266SJung-uk Kim }
300a159c266SJung-uk Kim
301a159c266SJung-uk Kim /* Install the object at the front of the object list */
302a159c266SJung-uk Kim
303a159c266SJung-uk Kim LastObjDesc->Common.NextObject = Node->Object;
304a159c266SJung-uk Kim }
305a159c266SJung-uk Kim
306a159c266SJung-uk Kim Node->Type = (UINT8) ObjectType;
307a159c266SJung-uk Kim Node->Object = ObjDesc;
308a159c266SJung-uk Kim
309a159c266SJung-uk Kim return_ACPI_STATUS (AE_OK);
310a159c266SJung-uk Kim }
311a159c266SJung-uk Kim
312a159c266SJung-uk Kim
313a159c266SJung-uk Kim /*******************************************************************************
314a159c266SJung-uk Kim *
315a159c266SJung-uk Kim * FUNCTION: AcpiNsDetachObject
316a159c266SJung-uk Kim *
317a159c266SJung-uk Kim * PARAMETERS: Node - A Namespace node whose object will be detached
318a159c266SJung-uk Kim *
319a159c266SJung-uk Kim * RETURN: None.
320a159c266SJung-uk Kim *
321a159c266SJung-uk Kim * DESCRIPTION: Detach/delete an object associated with a namespace node.
322a159c266SJung-uk Kim * if the object is an allocated object, it is freed.
323a159c266SJung-uk Kim * Otherwise, the field is simply cleared.
324a159c266SJung-uk Kim *
325a159c266SJung-uk Kim ******************************************************************************/
326a159c266SJung-uk Kim
327a159c266SJung-uk Kim void
AcpiNsDetachObject(ACPI_NAMESPACE_NODE * Node)328a159c266SJung-uk Kim AcpiNsDetachObject (
329a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *Node)
330a159c266SJung-uk Kim {
331a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *ObjDesc;
332a159c266SJung-uk Kim
333a159c266SJung-uk Kim
334a159c266SJung-uk Kim ACPI_FUNCTION_TRACE (NsDetachObject);
335a159c266SJung-uk Kim
336a159c266SJung-uk Kim
337a159c266SJung-uk Kim ObjDesc = Node->Object;
338a159c266SJung-uk Kim
339a159c266SJung-uk Kim if (!ObjDesc ||
340a159c266SJung-uk Kim (ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA))
341a159c266SJung-uk Kim {
342a159c266SJung-uk Kim return_VOID;
343a159c266SJung-uk Kim }
344a159c266SJung-uk Kim
345a159c266SJung-uk Kim if (Node->Flags & ANOBJ_ALLOCATED_BUFFER)
346a159c266SJung-uk Kim {
347a159c266SJung-uk Kim /* Free the dynamic aml buffer */
348a159c266SJung-uk Kim
349a159c266SJung-uk Kim if (ObjDesc->Common.Type == ACPI_TYPE_METHOD)
350a159c266SJung-uk Kim {
351a159c266SJung-uk Kim ACPI_FREE (ObjDesc->Method.AmlStart);
352a159c266SJung-uk Kim }
353a159c266SJung-uk Kim }
354a159c266SJung-uk Kim
355278f0de6SJung-uk Kim if (ObjDesc->Common.Type == ACPI_TYPE_REGION)
356278f0de6SJung-uk Kim {
357278f0de6SJung-uk Kim AcpiUtRemoveAddressRange(ObjDesc->Region.SpaceId, Node);
358278f0de6SJung-uk Kim }
359278f0de6SJung-uk Kim
360313a0c13SJung-uk Kim /* Clear the Node entry in all cases */
361a159c266SJung-uk Kim
362a159c266SJung-uk Kim Node->Object = NULL;
363a159c266SJung-uk Kim if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_OPERAND)
364a159c266SJung-uk Kim {
365313a0c13SJung-uk Kim /* Unlink object from front of possible object list */
366313a0c13SJung-uk Kim
367a159c266SJung-uk Kim Node->Object = ObjDesc->Common.NextObject;
368313a0c13SJung-uk Kim
369313a0c13SJung-uk Kim /* Handle possible 2-descriptor object */
370313a0c13SJung-uk Kim
371a159c266SJung-uk Kim if (Node->Object &&
372313a0c13SJung-uk Kim (Node->Object->Common.Type != ACPI_TYPE_LOCAL_DATA))
373a159c266SJung-uk Kim {
374a159c266SJung-uk Kim Node->Object = Node->Object->Common.NextObject;
375a159c266SJung-uk Kim }
376313a0c13SJung-uk Kim
377313a0c13SJung-uk Kim /*
378313a0c13SJung-uk Kim * Detach the object from any data objects (which are still held by
379313a0c13SJung-uk Kim * the namespace node)
380313a0c13SJung-uk Kim */
381313a0c13SJung-uk Kim if (ObjDesc->Common.NextObject &&
382313a0c13SJung-uk Kim ((ObjDesc->Common.NextObject)->Common.Type == ACPI_TYPE_LOCAL_DATA))
383313a0c13SJung-uk Kim {
384313a0c13SJung-uk Kim ObjDesc->Common.NextObject = NULL;
385313a0c13SJung-uk Kim }
386a159c266SJung-uk Kim }
387a159c266SJung-uk Kim
388a159c266SJung-uk Kim /* Reset the node type to untyped */
389a159c266SJung-uk Kim
390a159c266SJung-uk Kim Node->Type = ACPI_TYPE_ANY;
391a159c266SJung-uk Kim
392a159c266SJung-uk Kim ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n",
393a159c266SJung-uk Kim Node, AcpiUtGetNodeName (Node), ObjDesc));
394a159c266SJung-uk Kim
395a159c266SJung-uk Kim /* Remove one reference on the object (and all subobjects) */
396a159c266SJung-uk Kim
397a159c266SJung-uk Kim AcpiUtRemoveReference (ObjDesc);
398a159c266SJung-uk Kim return_VOID;
399a159c266SJung-uk Kim }
400a159c266SJung-uk Kim
401a159c266SJung-uk Kim
402a159c266SJung-uk Kim /*******************************************************************************
403a159c266SJung-uk Kim *
404a159c266SJung-uk Kim * FUNCTION: AcpiNsGetAttachedObject
405a159c266SJung-uk Kim *
406a159c266SJung-uk Kim * PARAMETERS: Node - Namespace node
407a159c266SJung-uk Kim *
408a159c266SJung-uk Kim * RETURN: Current value of the object field from the Node whose
409a159c266SJung-uk Kim * handle is passed
410a159c266SJung-uk Kim *
411a159c266SJung-uk Kim * DESCRIPTION: Obtain the object attached to a namespace node.
412a159c266SJung-uk Kim *
413a159c266SJung-uk Kim ******************************************************************************/
414a159c266SJung-uk Kim
415a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *
AcpiNsGetAttachedObject(ACPI_NAMESPACE_NODE * Node)416a159c266SJung-uk Kim AcpiNsGetAttachedObject (
417a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *Node)
418a159c266SJung-uk Kim {
419a159c266SJung-uk Kim ACPI_FUNCTION_TRACE_PTR (NsGetAttachedObject, Node);
420a159c266SJung-uk Kim
421a159c266SJung-uk Kim
422a159c266SJung-uk Kim if (!Node)
423a159c266SJung-uk Kim {
424a159c266SJung-uk Kim ACPI_WARNING ((AE_INFO, "Null Node ptr"));
425a159c266SJung-uk Kim return_PTR (NULL);
426a159c266SJung-uk Kim }
427a159c266SJung-uk Kim
428a159c266SJung-uk Kim if (!Node->Object ||
429a159c266SJung-uk Kim ((ACPI_GET_DESCRIPTOR_TYPE (Node->Object) != ACPI_DESC_TYPE_OPERAND) &&
430a159c266SJung-uk Kim (ACPI_GET_DESCRIPTOR_TYPE (Node->Object) != ACPI_DESC_TYPE_NAMED)) ||
431a159c266SJung-uk Kim ((Node->Object)->Common.Type == ACPI_TYPE_LOCAL_DATA))
432a159c266SJung-uk Kim {
433a159c266SJung-uk Kim return_PTR (NULL);
434a159c266SJung-uk Kim }
435a159c266SJung-uk Kim
436a159c266SJung-uk Kim return_PTR (Node->Object);
437a159c266SJung-uk Kim }
438a159c266SJung-uk Kim
439a159c266SJung-uk Kim
440a159c266SJung-uk Kim /*******************************************************************************
441a159c266SJung-uk Kim *
442a159c266SJung-uk Kim * FUNCTION: AcpiNsGetSecondaryObject
443a159c266SJung-uk Kim *
444a159c266SJung-uk Kim * PARAMETERS: Node - Namespace node
445a159c266SJung-uk Kim *
446a159c266SJung-uk Kim * RETURN: Current value of the object field from the Node whose
447a159c266SJung-uk Kim * handle is passed.
448a159c266SJung-uk Kim *
449a159c266SJung-uk Kim * DESCRIPTION: Obtain a secondary object associated with a namespace node.
450a159c266SJung-uk Kim *
451a159c266SJung-uk Kim ******************************************************************************/
452a159c266SJung-uk Kim
453a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *
AcpiNsGetSecondaryObject(ACPI_OPERAND_OBJECT * ObjDesc)454a159c266SJung-uk Kim AcpiNsGetSecondaryObject (
455a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *ObjDesc)
456a159c266SJung-uk Kim {
457a159c266SJung-uk Kim ACPI_FUNCTION_TRACE_PTR (NsGetSecondaryObject, ObjDesc);
458a159c266SJung-uk Kim
459a159c266SJung-uk Kim
460a159c266SJung-uk Kim if ((!ObjDesc) ||
461a159c266SJung-uk Kim (ObjDesc->Common.Type== ACPI_TYPE_LOCAL_DATA) ||
462a159c266SJung-uk Kim (!ObjDesc->Common.NextObject) ||
463a159c266SJung-uk Kim ((ObjDesc->Common.NextObject)->Common.Type == ACPI_TYPE_LOCAL_DATA))
464a159c266SJung-uk Kim {
465a159c266SJung-uk Kim return_PTR (NULL);
466a159c266SJung-uk Kim }
467a159c266SJung-uk Kim
468a159c266SJung-uk Kim return_PTR (ObjDesc->Common.NextObject);
469a159c266SJung-uk Kim }
470a159c266SJung-uk Kim
471a159c266SJung-uk Kim
472a159c266SJung-uk Kim /*******************************************************************************
473a159c266SJung-uk Kim *
474a159c266SJung-uk Kim * FUNCTION: AcpiNsAttachData
475a159c266SJung-uk Kim *
476a159c266SJung-uk Kim * PARAMETERS: Node - Namespace node
477a159c266SJung-uk Kim * Handler - Handler to be associated with the data
478a159c266SJung-uk Kim * Data - Data to be attached
479a159c266SJung-uk Kim *
480a159c266SJung-uk Kim * RETURN: Status
481a159c266SJung-uk Kim *
482a159c266SJung-uk Kim * DESCRIPTION: Low-level attach data. Create and attach a Data object.
483a159c266SJung-uk Kim *
484a159c266SJung-uk Kim ******************************************************************************/
485a159c266SJung-uk Kim
486a159c266SJung-uk Kim ACPI_STATUS
AcpiNsAttachData(ACPI_NAMESPACE_NODE * Node,ACPI_OBJECT_HANDLER Handler,void * Data)487a159c266SJung-uk Kim AcpiNsAttachData (
488a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *Node,
489a159c266SJung-uk Kim ACPI_OBJECT_HANDLER Handler,
490a159c266SJung-uk Kim void *Data)
491a159c266SJung-uk Kim {
492a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *PrevObjDesc;
493a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *ObjDesc;
494a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *DataDesc;
495a159c266SJung-uk Kim
496a159c266SJung-uk Kim
497a159c266SJung-uk Kim /* We only allow one attachment per handler */
498a159c266SJung-uk Kim
499a159c266SJung-uk Kim PrevObjDesc = NULL;
500a159c266SJung-uk Kim ObjDesc = Node->Object;
501a159c266SJung-uk Kim while (ObjDesc)
502a159c266SJung-uk Kim {
503a159c266SJung-uk Kim if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA) &&
504a159c266SJung-uk Kim (ObjDesc->Data.Handler == Handler))
505a159c266SJung-uk Kim {
506a159c266SJung-uk Kim return (AE_ALREADY_EXISTS);
507a159c266SJung-uk Kim }
508a159c266SJung-uk Kim
509a159c266SJung-uk Kim PrevObjDesc = ObjDesc;
510a159c266SJung-uk Kim ObjDesc = ObjDesc->Common.NextObject;
511a159c266SJung-uk Kim }
512a159c266SJung-uk Kim
513a159c266SJung-uk Kim /* Create an internal object for the data */
514a159c266SJung-uk Kim
515a159c266SJung-uk Kim DataDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_DATA);
516a159c266SJung-uk Kim if (!DataDesc)
517a159c266SJung-uk Kim {
518a159c266SJung-uk Kim return (AE_NO_MEMORY);
519a159c266SJung-uk Kim }
520a159c266SJung-uk Kim
521a159c266SJung-uk Kim DataDesc->Data.Handler = Handler;
522a159c266SJung-uk Kim DataDesc->Data.Pointer = Data;
523a159c266SJung-uk Kim
524a159c266SJung-uk Kim /* Install the data object */
525a159c266SJung-uk Kim
526a159c266SJung-uk Kim if (PrevObjDesc)
527a159c266SJung-uk Kim {
528a159c266SJung-uk Kim PrevObjDesc->Common.NextObject = DataDesc;
529a159c266SJung-uk Kim }
530a159c266SJung-uk Kim else
531a159c266SJung-uk Kim {
532a159c266SJung-uk Kim Node->Object = DataDesc;
533a159c266SJung-uk Kim }
534a159c266SJung-uk Kim
535a159c266SJung-uk Kim return (AE_OK);
536a159c266SJung-uk Kim }
537a159c266SJung-uk Kim
538a159c266SJung-uk Kim
539a159c266SJung-uk Kim /*******************************************************************************
540a159c266SJung-uk Kim *
541a159c266SJung-uk Kim * FUNCTION: AcpiNsDetachData
542a159c266SJung-uk Kim *
543a159c266SJung-uk Kim * PARAMETERS: Node - Namespace node
544a159c266SJung-uk Kim * Handler - Handler associated with the data
545a159c266SJung-uk Kim *
546a159c266SJung-uk Kim * RETURN: Status
547a159c266SJung-uk Kim *
548a159c266SJung-uk Kim * DESCRIPTION: Low-level detach data. Delete the data node, but the caller
549a159c266SJung-uk Kim * is responsible for the actual data.
550a159c266SJung-uk Kim *
551a159c266SJung-uk Kim ******************************************************************************/
552a159c266SJung-uk Kim
553a159c266SJung-uk Kim ACPI_STATUS
AcpiNsDetachData(ACPI_NAMESPACE_NODE * Node,ACPI_OBJECT_HANDLER Handler)554a159c266SJung-uk Kim AcpiNsDetachData (
555a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *Node,
556a159c266SJung-uk Kim ACPI_OBJECT_HANDLER Handler)
557a159c266SJung-uk Kim {
558a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *ObjDesc;
559a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *PrevObjDesc;
560a159c266SJung-uk Kim
561a159c266SJung-uk Kim
562a159c266SJung-uk Kim PrevObjDesc = NULL;
563a159c266SJung-uk Kim ObjDesc = Node->Object;
564a159c266SJung-uk Kim while (ObjDesc)
565a159c266SJung-uk Kim {
566a159c266SJung-uk Kim if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA) &&
567a159c266SJung-uk Kim (ObjDesc->Data.Handler == Handler))
568a159c266SJung-uk Kim {
569a159c266SJung-uk Kim if (PrevObjDesc)
570a159c266SJung-uk Kim {
571a159c266SJung-uk Kim PrevObjDesc->Common.NextObject = ObjDesc->Common.NextObject;
572a159c266SJung-uk Kim }
573a159c266SJung-uk Kim else
574a159c266SJung-uk Kim {
575a159c266SJung-uk Kim Node->Object = ObjDesc->Common.NextObject;
576a159c266SJung-uk Kim }
577a159c266SJung-uk Kim
578a159c266SJung-uk Kim AcpiUtRemoveReference (ObjDesc);
579a159c266SJung-uk Kim return (AE_OK);
580a159c266SJung-uk Kim }
581a159c266SJung-uk Kim
582a159c266SJung-uk Kim PrevObjDesc = ObjDesc;
583a159c266SJung-uk Kim ObjDesc = ObjDesc->Common.NextObject;
584a159c266SJung-uk Kim }
585a159c266SJung-uk Kim
586a159c266SJung-uk Kim return (AE_NOT_FOUND);
587a159c266SJung-uk Kim }
588a159c266SJung-uk Kim
589a159c266SJung-uk Kim
590a159c266SJung-uk Kim /*******************************************************************************
591a159c266SJung-uk Kim *
592a159c266SJung-uk Kim * FUNCTION: AcpiNsGetAttachedData
593a159c266SJung-uk Kim *
594a159c266SJung-uk Kim * PARAMETERS: Node - Namespace node
595a159c266SJung-uk Kim * Handler - Handler associated with the data
596a159c266SJung-uk Kim * Data - Where the data is returned
597a159c266SJung-uk Kim *
598a159c266SJung-uk Kim * RETURN: Status
599a159c266SJung-uk Kim *
600a159c266SJung-uk Kim * DESCRIPTION: Low level interface to obtain data previously associated with
601a159c266SJung-uk Kim * a namespace node.
602a159c266SJung-uk Kim *
603a159c266SJung-uk Kim ******************************************************************************/
604a159c266SJung-uk Kim
605a159c266SJung-uk Kim ACPI_STATUS
AcpiNsGetAttachedData(ACPI_NAMESPACE_NODE * Node,ACPI_OBJECT_HANDLER Handler,void ** Data)606a159c266SJung-uk Kim AcpiNsGetAttachedData (
607a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *Node,
608a159c266SJung-uk Kim ACPI_OBJECT_HANDLER Handler,
609a159c266SJung-uk Kim void **Data)
610a159c266SJung-uk Kim {
611a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *ObjDesc;
612a159c266SJung-uk Kim
613a159c266SJung-uk Kim
614a159c266SJung-uk Kim ObjDesc = Node->Object;
615a159c266SJung-uk Kim while (ObjDesc)
616a159c266SJung-uk Kim {
617a159c266SJung-uk Kim if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA) &&
618a159c266SJung-uk Kim (ObjDesc->Data.Handler == Handler))
619a159c266SJung-uk Kim {
620a159c266SJung-uk Kim *Data = ObjDesc->Data.Pointer;
621a159c266SJung-uk Kim return (AE_OK);
622a159c266SJung-uk Kim }
623a159c266SJung-uk Kim
624a159c266SJung-uk Kim ObjDesc = ObjDesc->Common.NextObject;
625a159c266SJung-uk Kim }
626a159c266SJung-uk Kim
627a159c266SJung-uk Kim return (AE_NOT_FOUND);
628a159c266SJung-uk Kim }
629