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authorLen Brown <len.brown@intel.com>2009-01-09 00:13:17 -0500
committerLen Brown <len.brown@intel.com>2009-01-09 03:30:47 -0500
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/namespace/nsobject.c
parent6620e0c49f577454b772fb381543d60ae53eb885 (diff)
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/namespace/nsobject.c')
-rw-r--r--drivers/acpi/namespace/nsobject.c441
1 files changed, 0 insertions, 441 deletions
diff --git a/drivers/acpi/namespace/nsobject.c b/drivers/acpi/namespace/nsobject.c
deleted file mode 100644
index ca9edeea27df..000000000000
--- a/drivers/acpi/namespace/nsobject.c
+++ /dev/null
@@ -1,441 +0,0 @@
1/*******************************************************************************
2 *
3 * Module Name: nsobject - Utilities for objects attached to namespace
4 * table entries
5 *
6 ******************************************************************************/
7
8/*
9 * Copyright (C) 2000 - 2008, Intel Corp.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer,
17 * without modification.
18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19 * substantially similar to the "NO WARRANTY" disclaimer below
20 * ("Disclaimer") and any redistribution must be conditioned upon
21 * including a substantially similar Disclaimer requirement for further
22 * binary redistribution.
23 * 3. Neither the names of the above-listed copyright holders nor the names
24 * of any contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * Alternatively, this software may be distributed under the terms of the
28 * GNU General Public License ("GPL") version 2 as published by the Free
29 * Software Foundation.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45#include <acpi/acpi.h>
46#include <acpi/accommon.h>
47#include <acpi/acnamesp.h>
48
49#define _COMPONENT ACPI_NAMESPACE
50ACPI_MODULE_NAME("nsobject")
51
52/*******************************************************************************
53 *
54 * FUNCTION: acpi_ns_attach_object
55 *
56 * PARAMETERS: Node - Parent Node
57 * Object - Object to be attached
58 * Type - Type of object, or ACPI_TYPE_ANY if not
59 * known
60 *
61 * RETURN: Status
62 *
63 * DESCRIPTION: Record the given object as the value associated with the
64 * name whose acpi_handle is passed. If Object is NULL
65 * and Type is ACPI_TYPE_ANY, set the name as having no value.
66 * Note: Future may require that the Node->Flags field be passed
67 * as a parameter.
68 *
69 * MUTEX: Assumes namespace is locked
70 *
71 ******************************************************************************/
72acpi_status
73acpi_ns_attach_object(struct acpi_namespace_node *node,
74 union acpi_operand_object *object, acpi_object_type type)
75{
76 union acpi_operand_object *obj_desc;
77 union acpi_operand_object *last_obj_desc;
78 acpi_object_type object_type = ACPI_TYPE_ANY;
79
80 ACPI_FUNCTION_TRACE(ns_attach_object);
81
82 /*
83 * Parameter validation
84 */
85 if (!node) {
86
87 /* Invalid handle */
88
89 ACPI_ERROR((AE_INFO, "Null NamedObj handle"));
90 return_ACPI_STATUS(AE_BAD_PARAMETER);
91 }
92
93 if (!object && (ACPI_TYPE_ANY != type)) {
94
95 /* Null object */
96
97 ACPI_ERROR((AE_INFO,
98 "Null object, but type not ACPI_TYPE_ANY"));
99 return_ACPI_STATUS(AE_BAD_PARAMETER);
100 }
101
102 if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
103
104 /* Not a name handle */
105
106 ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]",
107 node, acpi_ut_get_descriptor_name(node)));
108 return_ACPI_STATUS(AE_BAD_PARAMETER);
109 }
110
111 /* Check if this object is already attached */
112
113 if (node->object == object) {
114 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
115 "Obj %p already installed in NameObj %p\n",
116 object, node));
117
118 return_ACPI_STATUS(AE_OK);
119 }
120
121 /* If null object, we will just install it */
122
123 if (!object) {
124 obj_desc = NULL;
125 object_type = ACPI_TYPE_ANY;
126 }
127
128 /*
129 * If the source object is a namespace Node with an attached object,
130 * we will use that (attached) object
131 */
132 else if ((ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) &&
133 ((struct acpi_namespace_node *)object)->object) {
134 /*
135 * Value passed is a name handle and that name has a
136 * non-null value. Use that name's value and type.
137 */
138 obj_desc = ((struct acpi_namespace_node *)object)->object;
139 object_type = ((struct acpi_namespace_node *)object)->type;
140 }
141
142 /*
143 * Otherwise, we will use the parameter object, but we must type
144 * it first
145 */
146 else {
147 obj_desc = (union acpi_operand_object *)object;
148
149 /* Use the given type */
150
151 object_type = type;
152 }
153
154 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n",
155 obj_desc, node, acpi_ut_get_node_name(node)));
156
157 /* Detach an existing attached object if present */
158
159 if (node->object) {
160 acpi_ns_detach_object(node);
161 }
162
163 if (obj_desc) {
164 /*
165 * Must increment the new value's reference count
166 * (if it is an internal object)
167 */
168 acpi_ut_add_reference(obj_desc);
169
170 /*
171 * Handle objects with multiple descriptors - walk
172 * to the end of the descriptor list
173 */
174 last_obj_desc = obj_desc;
175 while (last_obj_desc->common.next_object) {
176 last_obj_desc = last_obj_desc->common.next_object;
177 }
178
179 /* Install the object at the front of the object list */
180
181 last_obj_desc->common.next_object = node->object;
182 }
183
184 node->type = (u8) object_type;
185 node->object = obj_desc;
186
187 return_ACPI_STATUS(AE_OK);
188}
189
190/*******************************************************************************
191 *
192 * FUNCTION: acpi_ns_detach_object
193 *
194 * PARAMETERS: Node - A Namespace node whose object will be detached
195 *
196 * RETURN: None.
197 *
198 * DESCRIPTION: Detach/delete an object associated with a namespace node.
199 * if the object is an allocated object, it is freed.
200 * Otherwise, the field is simply cleared.
201 *
202 ******************************************************************************/
203
204void acpi_ns_detach_object(struct acpi_namespace_node *node)
205{
206 union acpi_operand_object *obj_desc;
207
208 ACPI_FUNCTION_TRACE(ns_detach_object);
209
210 obj_desc = node->object;
211
212 if (!obj_desc ||
213 (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA)) {
214 return_VOID;
215 }
216
217 /* Clear the entry in all cases */
218
219 node->object = NULL;
220 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) {
221 node->object = obj_desc->common.next_object;
222 if (node->object &&
223 (ACPI_GET_OBJECT_TYPE(node->object) !=
224 ACPI_TYPE_LOCAL_DATA)) {
225 node->object = node->object->common.next_object;
226 }
227 }
228
229 /* Reset the node type to untyped */
230
231 node->type = ACPI_TYPE_ANY;
232
233 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n",
234 node, acpi_ut_get_node_name(node), obj_desc));
235
236 /* Remove one reference on the object (and all subobjects) */
237
238 acpi_ut_remove_reference(obj_desc);
239 return_VOID;
240}
241
242/*******************************************************************************
243 *
244 * FUNCTION: acpi_ns_get_attached_object
245 *
246 * PARAMETERS: Node - Namespace node
247 *
248 * RETURN: Current value of the object field from the Node whose
249 * handle is passed
250 *
251 * DESCRIPTION: Obtain the object attached to a namespace node.
252 *
253 ******************************************************************************/
254
255union acpi_operand_object *acpi_ns_get_attached_object(struct
256 acpi_namespace_node
257 *node)
258{
259 ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node);
260
261 if (!node) {
262 ACPI_WARNING((AE_INFO, "Null Node ptr"));
263 return_PTR(NULL);
264 }
265
266 if (!node->object ||
267 ((ACPI_GET_DESCRIPTOR_TYPE(node->object) != ACPI_DESC_TYPE_OPERAND)
268 && (ACPI_GET_DESCRIPTOR_TYPE(node->object) !=
269 ACPI_DESC_TYPE_NAMED))
270 || (ACPI_GET_OBJECT_TYPE(node->object) == ACPI_TYPE_LOCAL_DATA)) {
271 return_PTR(NULL);
272 }
273
274 return_PTR(node->object);
275}
276
277/*******************************************************************************
278 *
279 * FUNCTION: acpi_ns_get_secondary_object
280 *
281 * PARAMETERS: Node - Namespace node
282 *
283 * RETURN: Current value of the object field from the Node whose
284 * handle is passed.
285 *
286 * DESCRIPTION: Obtain a secondary object associated with a namespace node.
287 *
288 ******************************************************************************/
289
290union acpi_operand_object *acpi_ns_get_secondary_object(union
291 acpi_operand_object
292 *obj_desc)
293{
294 ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc);
295
296 if ((!obj_desc) ||
297 (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) ||
298 (!obj_desc->common.next_object) ||
299 (ACPI_GET_OBJECT_TYPE(obj_desc->common.next_object) ==
300 ACPI_TYPE_LOCAL_DATA)) {
301 return_PTR(NULL);
302 }
303
304 return_PTR(obj_desc->common.next_object);
305}
306
307/*******************************************************************************
308 *
309 * FUNCTION: acpi_ns_attach_data
310 *
311 * PARAMETERS: Node - Namespace node
312 * Handler - Handler to be associated with the data
313 * Data - Data to be attached
314 *
315 * RETURN: Status
316 *
317 * DESCRIPTION: Low-level attach data. Create and attach a Data object.
318 *
319 ******************************************************************************/
320
321acpi_status
322acpi_ns_attach_data(struct acpi_namespace_node *node,
323 acpi_object_handler handler, void *data)
324{
325 union acpi_operand_object *prev_obj_desc;
326 union acpi_operand_object *obj_desc;
327 union acpi_operand_object *data_desc;
328
329 /* We only allow one attachment per handler */
330
331 prev_obj_desc = NULL;
332 obj_desc = node->object;
333 while (obj_desc) {
334 if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
335 (obj_desc->data.handler == handler)) {
336 return (AE_ALREADY_EXISTS);
337 }
338
339 prev_obj_desc = obj_desc;
340 obj_desc = obj_desc->common.next_object;
341 }
342
343 /* Create an internal object for the data */
344
345 data_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_DATA);
346 if (!data_desc) {
347 return (AE_NO_MEMORY);
348 }
349
350 data_desc->data.handler = handler;
351 data_desc->data.pointer = data;
352
353 /* Install the data object */
354
355 if (prev_obj_desc) {
356 prev_obj_desc->common.next_object = data_desc;
357 } else {
358 node->object = data_desc;
359 }
360
361 return (AE_OK);
362}
363
364/*******************************************************************************
365 *
366 * FUNCTION: acpi_ns_detach_data
367 *
368 * PARAMETERS: Node - Namespace node
369 * Handler - Handler associated with the data
370 *
371 * RETURN: Status
372 *
373 * DESCRIPTION: Low-level detach data. Delete the data node, but the caller
374 * is responsible for the actual data.
375 *
376 ******************************************************************************/
377
378acpi_status
379acpi_ns_detach_data(struct acpi_namespace_node * node,
380 acpi_object_handler handler)
381{
382 union acpi_operand_object *obj_desc;
383 union acpi_operand_object *prev_obj_desc;
384
385 prev_obj_desc = NULL;
386 obj_desc = node->object;
387 while (obj_desc) {
388 if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
389 (obj_desc->data.handler == handler)) {
390 if (prev_obj_desc) {
391 prev_obj_desc->common.next_object =
392 obj_desc->common.next_object;
393 } else {
394 node->object = obj_desc->common.next_object;
395 }
396
397 acpi_ut_remove_reference(obj_desc);
398 return (AE_OK);
399 }
400
401 prev_obj_desc = obj_desc;
402 obj_desc = obj_desc->common.next_object;
403 }
404
405 return (AE_NOT_FOUND);
406}
407
408/*******************************************************************************
409 *
410 * FUNCTION: acpi_ns_get_attached_data
411 *
412 * PARAMETERS: Node - Namespace node
413 * Handler - Handler associated with the data
414 * Data - Where the data is returned
415 *
416 * RETURN: Status
417 *
418 * DESCRIPTION: Low level interface to obtain data previously associated with
419 * a namespace node.
420 *
421 ******************************************************************************/
422
423acpi_status
424acpi_ns_get_attached_data(struct acpi_namespace_node * node,
425 acpi_object_handler handler, void **data)
426{
427 union acpi_operand_object *obj_desc;
428
429 obj_desc = node->object;
430 while (obj_desc) {
431 if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
432 (obj_desc->data.handler == handler)) {
433 *data = obj_desc->data.pointer;
434 return (AE_OK);
435 }
436
437 obj_desc = obj_desc->common.next_object;
438 }
439
440 return (AE_NOT_FOUND);
441}