diff options
author | Len Brown <len.brown@intel.com> | 2009-01-09 00:13:17 -0500 |
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committer | Len Brown <len.brown@intel.com> | 2009-01-09 03:30:47 -0500 |
commit | 95b482a8d31116f3f5c2a5089569393234d06385 (patch) | |
tree | f32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/acpica/utstate.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/utstate.c')
-rw-r--r-- | drivers/acpi/acpica/utstate.c | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c new file mode 100644 index 00000000000..54c3461e2f2 --- /dev/null +++ b/drivers/acpi/acpica/utstate.c | |||
@@ -0,0 +1,347 @@ | |||
1 | /******************************************************************************* | ||
2 | * | ||
3 | * Module Name: utstate - state object support procedures | ||
4 | * | ||
5 | ******************************************************************************/ | ||
6 | |||
7 | /* | ||
8 | * Copyright (C) 2000 - 2008, Intel Corp. | ||
9 | * All rights reserved. | ||
10 | * | ||
11 | * Redistribution and use in source and binary forms, with or without | ||
12 | * modification, are permitted provided that the following conditions | ||
13 | * are met: | ||
14 | * 1. Redistributions of source code must retain the above copyright | ||
15 | * notice, this list of conditions, and the following disclaimer, | ||
16 | * without modification. | ||
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||
18 | * substantially similar to the "NO WARRANTY" disclaimer below | ||
19 | * ("Disclaimer") and any redistribution must be conditioned upon | ||
20 | * including a substantially similar Disclaimer requirement for further | ||
21 | * binary redistribution. | ||
22 | * 3. Neither the names of the above-listed copyright holders nor the names | ||
23 | * of any contributors may be used to endorse or promote products derived | ||
24 | * from this software without specific prior written permission. | ||
25 | * | ||
26 | * Alternatively, this software may be distributed under the terms of the | ||
27 | * GNU General Public License ("GPL") version 2 as published by the Free | ||
28 | * Software Foundation. | ||
29 | * | ||
30 | * NO WARRANTY | ||
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | ||
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | ||
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
41 | * POSSIBILITY OF SUCH DAMAGES. | ||
42 | */ | ||
43 | |||
44 | #include <acpi/acpi.h> | ||
45 | #include <acpi/accommon.h> | ||
46 | |||
47 | #define _COMPONENT ACPI_UTILITIES | ||
48 | ACPI_MODULE_NAME("utstate") | ||
49 | |||
50 | /******************************************************************************* | ||
51 | * | ||
52 | * FUNCTION: acpi_ut_create_pkg_state_and_push | ||
53 | * | ||
54 | * PARAMETERS: Object - Object to be added to the new state | ||
55 | * Action - Increment/Decrement | ||
56 | * state_list - List the state will be added to | ||
57 | * | ||
58 | * RETURN: Status | ||
59 | * | ||
60 | * DESCRIPTION: Create a new state and push it | ||
61 | * | ||
62 | ******************************************************************************/ | ||
63 | acpi_status | ||
64 | acpi_ut_create_pkg_state_and_push(void *internal_object, | ||
65 | void *external_object, | ||
66 | u16 index, | ||
67 | union acpi_generic_state **state_list) | ||
68 | { | ||
69 | union acpi_generic_state *state; | ||
70 | |||
71 | ACPI_FUNCTION_ENTRY(); | ||
72 | |||
73 | state = | ||
74 | acpi_ut_create_pkg_state(internal_object, external_object, index); | ||
75 | if (!state) { | ||
76 | return (AE_NO_MEMORY); | ||
77 | } | ||
78 | |||
79 | acpi_ut_push_generic_state(state_list, state); | ||
80 | return (AE_OK); | ||
81 | } | ||
82 | |||
83 | /******************************************************************************* | ||
84 | * | ||
85 | * FUNCTION: acpi_ut_push_generic_state | ||
86 | * | ||
87 | * PARAMETERS: list_head - Head of the state stack | ||
88 | * State - State object to push | ||
89 | * | ||
90 | * RETURN: None | ||
91 | * | ||
92 | * DESCRIPTION: Push a state object onto a state stack | ||
93 | * | ||
94 | ******************************************************************************/ | ||
95 | |||
96 | void | ||
97 | acpi_ut_push_generic_state(union acpi_generic_state **list_head, | ||
98 | union acpi_generic_state *state) | ||
99 | { | ||
100 | ACPI_FUNCTION_TRACE(ut_push_generic_state); | ||
101 | |||
102 | /* Push the state object onto the front of the list (stack) */ | ||
103 | |||
104 | state->common.next = *list_head; | ||
105 | *list_head = state; | ||
106 | |||
107 | return_VOID; | ||
108 | } | ||
109 | |||
110 | /******************************************************************************* | ||
111 | * | ||
112 | * FUNCTION: acpi_ut_pop_generic_state | ||
113 | * | ||
114 | * PARAMETERS: list_head - Head of the state stack | ||
115 | * | ||
116 | * RETURN: The popped state object | ||
117 | * | ||
118 | * DESCRIPTION: Pop a state object from a state stack | ||
119 | * | ||
120 | ******************************************************************************/ | ||
121 | |||
122 | union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state | ||
123 | **list_head) | ||
124 | { | ||
125 | union acpi_generic_state *state; | ||
126 | |||
127 | ACPI_FUNCTION_TRACE(ut_pop_generic_state); | ||
128 | |||
129 | /* Remove the state object at the head of the list (stack) */ | ||
130 | |||
131 | state = *list_head; | ||
132 | if (state) { | ||
133 | |||
134 | /* Update the list head */ | ||
135 | |||
136 | *list_head = state->common.next; | ||
137 | } | ||
138 | |||
139 | return_PTR(state); | ||
140 | } | ||
141 | |||
142 | /******************************************************************************* | ||
143 | * | ||
144 | * FUNCTION: acpi_ut_create_generic_state | ||
145 | * | ||
146 | * PARAMETERS: None | ||
147 | * | ||
148 | * RETURN: The new state object. NULL on failure. | ||
149 | * | ||
150 | * DESCRIPTION: Create a generic state object. Attempt to obtain one from | ||
151 | * the global state cache; If none available, create a new one. | ||
152 | * | ||
153 | ******************************************************************************/ | ||
154 | |||
155 | union acpi_generic_state *acpi_ut_create_generic_state(void) | ||
156 | { | ||
157 | union acpi_generic_state *state; | ||
158 | |||
159 | ACPI_FUNCTION_ENTRY(); | ||
160 | |||
161 | state = acpi_os_acquire_object(acpi_gbl_state_cache); | ||
162 | if (state) { | ||
163 | |||
164 | /* Initialize */ | ||
165 | memset(state, 0, sizeof(union acpi_generic_state)); | ||
166 | state->common.descriptor_type = ACPI_DESC_TYPE_STATE; | ||
167 | } | ||
168 | |||
169 | return (state); | ||
170 | } | ||
171 | |||
172 | /******************************************************************************* | ||
173 | * | ||
174 | * FUNCTION: acpi_ut_create_thread_state | ||
175 | * | ||
176 | * PARAMETERS: None | ||
177 | * | ||
178 | * RETURN: New Thread State. NULL on failure | ||
179 | * | ||
180 | * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used | ||
181 | * to track per-thread info during method execution | ||
182 | * | ||
183 | ******************************************************************************/ | ||
184 | |||
185 | struct acpi_thread_state *acpi_ut_create_thread_state(void) | ||
186 | { | ||
187 | union acpi_generic_state *state; | ||
188 | |||
189 | ACPI_FUNCTION_TRACE(ut_create_thread_state); | ||
190 | |||
191 | /* Create the generic state object */ | ||
192 | |||
193 | state = acpi_ut_create_generic_state(); | ||
194 | if (!state) { | ||
195 | return_PTR(NULL); | ||
196 | } | ||
197 | |||
198 | /* Init fields specific to the update struct */ | ||
199 | |||
200 | state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD; | ||
201 | state->thread.thread_id = acpi_os_get_thread_id(); | ||
202 | |||
203 | /* Check for invalid thread ID - zero is very bad, it will break things */ | ||
204 | |||
205 | if (!state->thread.thread_id) { | ||
206 | ACPI_ERROR((AE_INFO, "Invalid zero ID from AcpiOsGetThreadId")); | ||
207 | state->thread.thread_id = (acpi_thread_id) 1; | ||
208 | } | ||
209 | |||
210 | return_PTR((struct acpi_thread_state *)state); | ||
211 | } | ||
212 | |||
213 | /******************************************************************************* | ||
214 | * | ||
215 | * FUNCTION: acpi_ut_create_update_state | ||
216 | * | ||
217 | * PARAMETERS: Object - Initial Object to be installed in the state | ||
218 | * Action - Update action to be performed | ||
219 | * | ||
220 | * RETURN: New state object, null on failure | ||
221 | * | ||
222 | * DESCRIPTION: Create an "Update State" - a flavor of the generic state used | ||
223 | * to update reference counts and delete complex objects such | ||
224 | * as packages. | ||
225 | * | ||
226 | ******************************************************************************/ | ||
227 | |||
228 | union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object | ||
229 | *object, u16 action) | ||
230 | { | ||
231 | union acpi_generic_state *state; | ||
232 | |||
233 | ACPI_FUNCTION_TRACE_PTR(ut_create_update_state, object); | ||
234 | |||
235 | /* Create the generic state object */ | ||
236 | |||
237 | state = acpi_ut_create_generic_state(); | ||
238 | if (!state) { | ||
239 | return_PTR(NULL); | ||
240 | } | ||
241 | |||
242 | /* Init fields specific to the update struct */ | ||
243 | |||
244 | state->common.descriptor_type = ACPI_DESC_TYPE_STATE_UPDATE; | ||
245 | state->update.object = object; | ||
246 | state->update.value = action; | ||
247 | |||
248 | return_PTR(state); | ||
249 | } | ||
250 | |||
251 | /******************************************************************************* | ||
252 | * | ||
253 | * FUNCTION: acpi_ut_create_pkg_state | ||
254 | * | ||
255 | * PARAMETERS: Object - Initial Object to be installed in the state | ||
256 | * Action - Update action to be performed | ||
257 | * | ||
258 | * RETURN: New state object, null on failure | ||
259 | * | ||
260 | * DESCRIPTION: Create a "Package State" | ||
261 | * | ||
262 | ******************************************************************************/ | ||
263 | |||
264 | union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object, | ||
265 | void *external_object, | ||
266 | u16 index) | ||
267 | { | ||
268 | union acpi_generic_state *state; | ||
269 | |||
270 | ACPI_FUNCTION_TRACE_PTR(ut_create_pkg_state, internal_object); | ||
271 | |||
272 | /* Create the generic state object */ | ||
273 | |||
274 | state = acpi_ut_create_generic_state(); | ||
275 | if (!state) { | ||
276 | return_PTR(NULL); | ||
277 | } | ||
278 | |||
279 | /* Init fields specific to the update struct */ | ||
280 | |||
281 | state->common.descriptor_type = ACPI_DESC_TYPE_STATE_PACKAGE; | ||
282 | state->pkg.source_object = (union acpi_operand_object *)internal_object; | ||
283 | state->pkg.dest_object = external_object; | ||
284 | state->pkg.index = index; | ||
285 | state->pkg.num_packages = 1; | ||
286 | |||
287 | return_PTR(state); | ||
288 | } | ||
289 | |||
290 | /******************************************************************************* | ||
291 | * | ||
292 | * FUNCTION: acpi_ut_create_control_state | ||
293 | * | ||
294 | * PARAMETERS: None | ||
295 | * | ||
296 | * RETURN: New state object, null on failure | ||
297 | * | ||
298 | * DESCRIPTION: Create a "Control State" - a flavor of the generic state used | ||
299 | * to support nested IF/WHILE constructs in the AML. | ||
300 | * | ||
301 | ******************************************************************************/ | ||
302 | |||
303 | union acpi_generic_state *acpi_ut_create_control_state(void) | ||
304 | { | ||
305 | union acpi_generic_state *state; | ||
306 | |||
307 | ACPI_FUNCTION_TRACE(ut_create_control_state); | ||
308 | |||
309 | /* Create the generic state object */ | ||
310 | |||
311 | state = acpi_ut_create_generic_state(); | ||
312 | if (!state) { | ||
313 | return_PTR(NULL); | ||
314 | } | ||
315 | |||
316 | /* Init fields specific to the control struct */ | ||
317 | |||
318 | state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL; | ||
319 | state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING; | ||
320 | |||
321 | return_PTR(state); | ||
322 | } | ||
323 | |||
324 | /******************************************************************************* | ||
325 | * | ||
326 | * FUNCTION: acpi_ut_delete_generic_state | ||
327 | * | ||
328 | * PARAMETERS: State - The state object to be deleted | ||
329 | * | ||
330 | * RETURN: None | ||
331 | * | ||
332 | * DESCRIPTION: Release a state object to the state cache. NULL state objects | ||
333 | * are ignored. | ||
334 | * | ||
335 | ******************************************************************************/ | ||
336 | |||
337 | void acpi_ut_delete_generic_state(union acpi_generic_state *state) | ||
338 | { | ||
339 | ACPI_FUNCTION_TRACE(ut_delete_generic_state); | ||
340 | |||
341 | /* Ignore null state */ | ||
342 | |||
343 | if (state) { | ||
344 | (void)acpi_os_release_object(acpi_gbl_state_cache, state); | ||
345 | } | ||
346 | return_VOID; | ||
347 | } | ||