diff options
author | Len Brown <len.brown@intel.com> | 2009-01-09 00:13:17 -0500 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2009-01-09 03:30:47 -0500 |
commit | 95b482a8d31116f3f5c2a5089569393234d06385 (patch) | |
tree | f32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/acpica/nsxfname.c | |
parent | 6620e0c49f577454b772fb381543d60ae53eb885 (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/acpica/nsxfname.c')
-rw-r--r-- | drivers/acpi/acpica/nsxfname.c | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c new file mode 100644 index 000000000000..7d5bfa9e9fe9 --- /dev/null +++ b/drivers/acpi/acpica/nsxfname.c | |||
@@ -0,0 +1,360 @@ | |||
1 | /****************************************************************************** | ||
2 | * | ||
3 | * Module Name: nsxfname - Public interfaces to the ACPI subsystem | ||
4 | * ACPI Namespace oriented interfaces | ||
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 | ||
50 | ACPI_MODULE_NAME("nsxfname") | ||
51 | |||
52 | /****************************************************************************** | ||
53 | * | ||
54 | * FUNCTION: acpi_get_handle | ||
55 | * | ||
56 | * PARAMETERS: Parent - Object to search under (search scope). | ||
57 | * Pathname - Pointer to an asciiz string containing the | ||
58 | * name | ||
59 | * ret_handle - Where the return handle is returned | ||
60 | * | ||
61 | * RETURN: Status | ||
62 | * | ||
63 | * DESCRIPTION: This routine will search for a caller specified name in the | ||
64 | * name space. The caller can restrict the search region by | ||
65 | * specifying a non NULL parent. The parent value is itself a | ||
66 | * namespace handle. | ||
67 | * | ||
68 | ******************************************************************************/ | ||
69 | acpi_status | ||
70 | acpi_get_handle(acpi_handle parent, | ||
71 | acpi_string pathname, acpi_handle * ret_handle) | ||
72 | { | ||
73 | acpi_status status; | ||
74 | struct acpi_namespace_node *node = NULL; | ||
75 | struct acpi_namespace_node *prefix_node = NULL; | ||
76 | |||
77 | ACPI_FUNCTION_ENTRY(); | ||
78 | |||
79 | /* Parameter Validation */ | ||
80 | |||
81 | if (!ret_handle || !pathname) { | ||
82 | return (AE_BAD_PARAMETER); | ||
83 | } | ||
84 | |||
85 | /* Convert a parent handle to a prefix node */ | ||
86 | |||
87 | if (parent) { | ||
88 | prefix_node = acpi_ns_map_handle_to_node(parent); | ||
89 | if (!prefix_node) { | ||
90 | return (AE_BAD_PARAMETER); | ||
91 | } | ||
92 | } | ||
93 | |||
94 | /* | ||
95 | * Valid cases are: | ||
96 | * 1) Fully qualified pathname | ||
97 | * 2) Parent + Relative pathname | ||
98 | * | ||
99 | * Error for <null Parent + relative path> | ||
100 | */ | ||
101 | if (acpi_ns_valid_root_prefix(pathname[0])) { | ||
102 | |||
103 | /* Pathname is fully qualified (starts with '\') */ | ||
104 | |||
105 | /* Special case for root-only, since we can't search for it */ | ||
106 | |||
107 | if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) { | ||
108 | *ret_handle = | ||
109 | acpi_ns_convert_entry_to_handle(acpi_gbl_root_node); | ||
110 | return (AE_OK); | ||
111 | } | ||
112 | } else if (!prefix_node) { | ||
113 | |||
114 | /* Relative path with null prefix is disallowed */ | ||
115 | |||
116 | return (AE_BAD_PARAMETER); | ||
117 | } | ||
118 | |||
119 | /* Find the Node and convert to a handle */ | ||
120 | |||
121 | status = | ||
122 | acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node); | ||
123 | if (ACPI_SUCCESS(status)) { | ||
124 | *ret_handle = acpi_ns_convert_entry_to_handle(node); | ||
125 | } | ||
126 | |||
127 | return (status); | ||
128 | } | ||
129 | |||
130 | ACPI_EXPORT_SYMBOL(acpi_get_handle) | ||
131 | |||
132 | /****************************************************************************** | ||
133 | * | ||
134 | * FUNCTION: acpi_get_name | ||
135 | * | ||
136 | * PARAMETERS: Handle - Handle to be converted to a pathname | ||
137 | * name_type - Full pathname or single segment | ||
138 | * Buffer - Buffer for returned path | ||
139 | * | ||
140 | * RETURN: Pointer to a string containing the fully qualified Name. | ||
141 | * | ||
142 | * DESCRIPTION: This routine returns the fully qualified name associated with | ||
143 | * the Handle parameter. This and the acpi_pathname_to_handle are | ||
144 | * complementary functions. | ||
145 | * | ||
146 | ******************************************************************************/ | ||
147 | acpi_status | ||
148 | acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) | ||
149 | { | ||
150 | acpi_status status; | ||
151 | struct acpi_namespace_node *node; | ||
152 | |||
153 | /* Parameter validation */ | ||
154 | |||
155 | if (name_type > ACPI_NAME_TYPE_MAX) { | ||
156 | return (AE_BAD_PARAMETER); | ||
157 | } | ||
158 | |||
159 | status = acpi_ut_validate_buffer(buffer); | ||
160 | if (ACPI_FAILURE(status)) { | ||
161 | return (status); | ||
162 | } | ||
163 | |||
164 | if (name_type == ACPI_FULL_PATHNAME) { | ||
165 | |||
166 | /* Get the full pathname (From the namespace root) */ | ||
167 | |||
168 | status = acpi_ns_handle_to_pathname(handle, buffer); | ||
169 | return (status); | ||
170 | } | ||
171 | |||
172 | /* | ||
173 | * Wants the single segment ACPI name. | ||
174 | * Validate handle and convert to a namespace Node | ||
175 | */ | ||
176 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); | ||
177 | if (ACPI_FAILURE(status)) { | ||
178 | return (status); | ||
179 | } | ||
180 | |||
181 | node = acpi_ns_map_handle_to_node(handle); | ||
182 | if (!node) { | ||
183 | status = AE_BAD_PARAMETER; | ||
184 | goto unlock_and_exit; | ||
185 | } | ||
186 | |||
187 | /* Validate/Allocate/Clear caller buffer */ | ||
188 | |||
189 | status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH); | ||
190 | if (ACPI_FAILURE(status)) { | ||
191 | goto unlock_and_exit; | ||
192 | } | ||
193 | |||
194 | /* Just copy the ACPI name from the Node and zero terminate it */ | ||
195 | |||
196 | ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node), | ||
197 | ACPI_NAME_SIZE); | ||
198 | ((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0; | ||
199 | status = AE_OK; | ||
200 | |||
201 | unlock_and_exit: | ||
202 | |||
203 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | ||
204 | return (status); | ||
205 | } | ||
206 | |||
207 | ACPI_EXPORT_SYMBOL(acpi_get_name) | ||
208 | |||
209 | /****************************************************************************** | ||
210 | * | ||
211 | * FUNCTION: acpi_get_object_info | ||
212 | * | ||
213 | * PARAMETERS: Handle - Object Handle | ||
214 | * Buffer - Where the info is returned | ||
215 | * | ||
216 | * RETURN: Status | ||
217 | * | ||
218 | * DESCRIPTION: Returns information about an object as gleaned from the | ||
219 | * namespace node and possibly by running several standard | ||
220 | * control methods (Such as in the case of a device.) | ||
221 | * | ||
222 | ******************************************************************************/ | ||
223 | acpi_status | ||
224 | acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) | ||
225 | { | ||
226 | acpi_status status; | ||
227 | struct acpi_namespace_node *node; | ||
228 | struct acpi_device_info *info; | ||
229 | struct acpi_device_info *return_info; | ||
230 | struct acpi_compatible_id_list *cid_list = NULL; | ||
231 | acpi_size size; | ||
232 | |||
233 | /* Parameter validation */ | ||
234 | |||
235 | if (!handle || !buffer) { | ||
236 | return (AE_BAD_PARAMETER); | ||
237 | } | ||
238 | |||
239 | status = acpi_ut_validate_buffer(buffer); | ||
240 | if (ACPI_FAILURE(status)) { | ||
241 | return (status); | ||
242 | } | ||
243 | |||
244 | info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info)); | ||
245 | if (!info) { | ||
246 | return (AE_NO_MEMORY); | ||
247 | } | ||
248 | |||
249 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); | ||
250 | if (ACPI_FAILURE(status)) { | ||
251 | goto cleanup; | ||
252 | } | ||
253 | |||
254 | node = acpi_ns_map_handle_to_node(handle); | ||
255 | if (!node) { | ||
256 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | ||
257 | status = AE_BAD_PARAMETER; | ||
258 | goto cleanup; | ||
259 | } | ||
260 | |||
261 | /* Init return structure */ | ||
262 | |||
263 | size = sizeof(struct acpi_device_info); | ||
264 | |||
265 | info->type = node->type; | ||
266 | info->name = node->name.integer; | ||
267 | info->valid = 0; | ||
268 | |||
269 | if (node->type == ACPI_TYPE_METHOD) { | ||
270 | info->param_count = node->object->method.param_count; | ||
271 | } | ||
272 | |||
273 | status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | ||
274 | if (ACPI_FAILURE(status)) { | ||
275 | goto cleanup; | ||
276 | } | ||
277 | |||
278 | /* If not a device, we are all done */ | ||
279 | |||
280 | if (info->type == ACPI_TYPE_DEVICE) { | ||
281 | /* | ||
282 | * Get extra info for ACPI Devices objects only: | ||
283 | * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods. | ||
284 | * | ||
285 | * Note: none of these methods are required, so they may or may | ||
286 | * not be present for this device. The Info->Valid bitfield is used | ||
287 | * to indicate which methods were found and ran successfully. | ||
288 | */ | ||
289 | |||
290 | /* Execute the Device._HID method */ | ||
291 | |||
292 | status = acpi_ut_execute_HID(node, &info->hardware_id); | ||
293 | if (ACPI_SUCCESS(status)) { | ||
294 | info->valid |= ACPI_VALID_HID; | ||
295 | } | ||
296 | |||
297 | /* Execute the Device._UID method */ | ||
298 | |||
299 | status = acpi_ut_execute_UID(node, &info->unique_id); | ||
300 | if (ACPI_SUCCESS(status)) { | ||
301 | info->valid |= ACPI_VALID_UID; | ||
302 | } | ||
303 | |||
304 | /* Execute the Device._CID method */ | ||
305 | |||
306 | status = acpi_ut_execute_CID(node, &cid_list); | ||
307 | if (ACPI_SUCCESS(status)) { | ||
308 | size += cid_list->size; | ||
309 | info->valid |= ACPI_VALID_CID; | ||
310 | } | ||
311 | |||
312 | /* Execute the Device._STA method */ | ||
313 | |||
314 | status = acpi_ut_execute_STA(node, &info->current_status); | ||
315 | if (ACPI_SUCCESS(status)) { | ||
316 | info->valid |= ACPI_VALID_STA; | ||
317 | } | ||
318 | |||
319 | /* Execute the Device._ADR method */ | ||
320 | |||
321 | status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node, | ||
322 | &info->address); | ||
323 | if (ACPI_SUCCESS(status)) { | ||
324 | info->valid |= ACPI_VALID_ADR; | ||
325 | } | ||
326 | |||
327 | /* Execute the Device._sx_d methods */ | ||
328 | |||
329 | status = acpi_ut_execute_sxds(node, info->highest_dstates); | ||
330 | if (ACPI_SUCCESS(status)) { | ||
331 | info->valid |= ACPI_VALID_SXDS; | ||
332 | } | ||
333 | } | ||
334 | |||
335 | /* Validate/Allocate/Clear caller buffer */ | ||
336 | |||
337 | status = acpi_ut_initialize_buffer(buffer, size); | ||
338 | if (ACPI_FAILURE(status)) { | ||
339 | goto cleanup; | ||
340 | } | ||
341 | |||
342 | /* Populate the return buffer */ | ||
343 | |||
344 | return_info = buffer->pointer; | ||
345 | ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info)); | ||
346 | |||
347 | if (cid_list) { | ||
348 | ACPI_MEMCPY(&return_info->compatibility_id, cid_list, | ||
349 | cid_list->size); | ||
350 | } | ||
351 | |||
352 | cleanup: | ||
353 | ACPI_FREE(info); | ||
354 | if (cid_list) { | ||
355 | ACPI_FREE(cid_list); | ||
356 | } | ||
357 | return (status); | ||
358 | } | ||
359 | |||
360 | ACPI_EXPORT_SYMBOL(acpi_get_object_info) | ||