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/psxface.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/psxface.c')
-rw-r--r-- | drivers/acpi/acpica/psxface.c | 385 |
1 files changed, 385 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c new file mode 100644 index 000000000000..98c31a893706 --- /dev/null +++ b/drivers/acpi/acpica/psxface.c | |||
@@ -0,0 +1,385 @@ | |||
1 | /****************************************************************************** | ||
2 | * | ||
3 | * Module Name: psxface - Parser external interfaces | ||
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 | #include <acpi/acparser.h> | ||
47 | #include <acpi/acdispat.h> | ||
48 | #include <acpi/acinterp.h> | ||
49 | #include <acpi/amlcode.h> | ||
50 | |||
51 | #define _COMPONENT ACPI_PARSER | ||
52 | ACPI_MODULE_NAME("psxface") | ||
53 | |||
54 | /* Local Prototypes */ | ||
55 | static void acpi_ps_start_trace(struct acpi_evaluate_info *info); | ||
56 | |||
57 | static void acpi_ps_stop_trace(struct acpi_evaluate_info *info); | ||
58 | |||
59 | static void | ||
60 | acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action); | ||
61 | |||
62 | /******************************************************************************* | ||
63 | * | ||
64 | * FUNCTION: acpi_debug_trace | ||
65 | * | ||
66 | * PARAMETERS: method_name - Valid ACPI name string | ||
67 | * debug_level - Optional level mask. 0 to use default | ||
68 | * debug_layer - Optional layer mask. 0 to use default | ||
69 | * Flags - bit 1: one shot(1) or persistent(0) | ||
70 | * | ||
71 | * RETURN: Status | ||
72 | * | ||
73 | * DESCRIPTION: External interface to enable debug tracing during control | ||
74 | * method execution | ||
75 | * | ||
76 | ******************************************************************************/ | ||
77 | |||
78 | acpi_status | ||
79 | acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags) | ||
80 | { | ||
81 | acpi_status status; | ||
82 | |||
83 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); | ||
84 | if (ACPI_FAILURE(status)) { | ||
85 | return (status); | ||
86 | } | ||
87 | |||
88 | /* TBDs: Validate name, allow full path or just nameseg */ | ||
89 | |||
90 | acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name); | ||
91 | acpi_gbl_trace_flags = flags; | ||
92 | |||
93 | if (debug_level) { | ||
94 | acpi_gbl_trace_dbg_level = debug_level; | ||
95 | } | ||
96 | if (debug_layer) { | ||
97 | acpi_gbl_trace_dbg_layer = debug_layer; | ||
98 | } | ||
99 | |||
100 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | ||
101 | return (AE_OK); | ||
102 | } | ||
103 | |||
104 | /******************************************************************************* | ||
105 | * | ||
106 | * FUNCTION: acpi_ps_start_trace | ||
107 | * | ||
108 | * PARAMETERS: Info - Method info struct | ||
109 | * | ||
110 | * RETURN: None | ||
111 | * | ||
112 | * DESCRIPTION: Start control method execution trace | ||
113 | * | ||
114 | ******************************************************************************/ | ||
115 | |||
116 | static void acpi_ps_start_trace(struct acpi_evaluate_info *info) | ||
117 | { | ||
118 | acpi_status status; | ||
119 | |||
120 | ACPI_FUNCTION_ENTRY(); | ||
121 | |||
122 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); | ||
123 | if (ACPI_FAILURE(status)) { | ||
124 | return; | ||
125 | } | ||
126 | |||
127 | if ((!acpi_gbl_trace_method_name) || | ||
128 | (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) { | ||
129 | goto exit; | ||
130 | } | ||
131 | |||
132 | acpi_gbl_original_dbg_level = acpi_dbg_level; | ||
133 | acpi_gbl_original_dbg_layer = acpi_dbg_layer; | ||
134 | |||
135 | acpi_dbg_level = 0x00FFFFFF; | ||
136 | acpi_dbg_layer = ACPI_UINT32_MAX; | ||
137 | |||
138 | if (acpi_gbl_trace_dbg_level) { | ||
139 | acpi_dbg_level = acpi_gbl_trace_dbg_level; | ||
140 | } | ||
141 | if (acpi_gbl_trace_dbg_layer) { | ||
142 | acpi_dbg_layer = acpi_gbl_trace_dbg_layer; | ||
143 | } | ||
144 | |||
145 | exit: | ||
146 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | ||
147 | } | ||
148 | |||
149 | /******************************************************************************* | ||
150 | * | ||
151 | * FUNCTION: acpi_ps_stop_trace | ||
152 | * | ||
153 | * PARAMETERS: Info - Method info struct | ||
154 | * | ||
155 | * RETURN: None | ||
156 | * | ||
157 | * DESCRIPTION: Stop control method execution trace | ||
158 | * | ||
159 | ******************************************************************************/ | ||
160 | |||
161 | static void acpi_ps_stop_trace(struct acpi_evaluate_info *info) | ||
162 | { | ||
163 | acpi_status status; | ||
164 | |||
165 | ACPI_FUNCTION_ENTRY(); | ||
166 | |||
167 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); | ||
168 | if (ACPI_FAILURE(status)) { | ||
169 | return; | ||
170 | } | ||
171 | |||
172 | if ((!acpi_gbl_trace_method_name) || | ||
173 | (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) { | ||
174 | goto exit; | ||
175 | } | ||
176 | |||
177 | /* Disable further tracing if type is one-shot */ | ||
178 | |||
179 | if (acpi_gbl_trace_flags & 1) { | ||
180 | acpi_gbl_trace_method_name = 0; | ||
181 | acpi_gbl_trace_dbg_level = 0; | ||
182 | acpi_gbl_trace_dbg_layer = 0; | ||
183 | } | ||
184 | |||
185 | acpi_dbg_level = acpi_gbl_original_dbg_level; | ||
186 | acpi_dbg_layer = acpi_gbl_original_dbg_layer; | ||
187 | |||
188 | exit: | ||
189 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | ||
190 | } | ||
191 | |||
192 | /******************************************************************************* | ||
193 | * | ||
194 | * FUNCTION: acpi_ps_execute_method | ||
195 | * | ||
196 | * PARAMETERS: Info - Method info block, contains: | ||
197 | * Node - Method Node to execute | ||
198 | * obj_desc - Method object | ||
199 | * Parameters - List of parameters to pass to the method, | ||
200 | * terminated by NULL. Params itself may be | ||
201 | * NULL if no parameters are being passed. | ||
202 | * return_object - Where to put method's return value (if | ||
203 | * any). If NULL, no value is returned. | ||
204 | * parameter_type - Type of Parameter list | ||
205 | * return_object - Where to put method's return value (if | ||
206 | * any). If NULL, no value is returned. | ||
207 | * pass_number - Parse or execute pass | ||
208 | * | ||
209 | * RETURN: Status | ||
210 | * | ||
211 | * DESCRIPTION: Execute a control method | ||
212 | * | ||
213 | ******************************************************************************/ | ||
214 | |||
215 | acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) | ||
216 | { | ||
217 | acpi_status status; | ||
218 | union acpi_parse_object *op; | ||
219 | struct acpi_walk_state *walk_state; | ||
220 | |||
221 | ACPI_FUNCTION_TRACE(ps_execute_method); | ||
222 | |||
223 | /* Validate the Info and method Node */ | ||
224 | |||
225 | if (!info || !info->resolved_node) { | ||
226 | return_ACPI_STATUS(AE_NULL_ENTRY); | ||
227 | } | ||
228 | |||
229 | /* Init for new method, wait on concurrency semaphore */ | ||
230 | |||
231 | status = | ||
232 | acpi_ds_begin_method_execution(info->resolved_node, info->obj_desc, | ||
233 | NULL); | ||
234 | if (ACPI_FAILURE(status)) { | ||
235 | return_ACPI_STATUS(status); | ||
236 | } | ||
237 | |||
238 | /* | ||
239 | * The caller "owns" the parameters, so give each one an extra reference | ||
240 | */ | ||
241 | acpi_ps_update_parameter_list(info, REF_INCREMENT); | ||
242 | |||
243 | /* Begin tracing if requested */ | ||
244 | |||
245 | acpi_ps_start_trace(info); | ||
246 | |||
247 | /* | ||
248 | * Execute the method. Performs parse simultaneously | ||
249 | */ | ||
250 | ACPI_DEBUG_PRINT((ACPI_DB_PARSE, | ||
251 | "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n", | ||
252 | info->resolved_node->name.ascii, info->resolved_node, | ||
253 | info->obj_desc)); | ||
254 | |||
255 | /* Create and init a Root Node */ | ||
256 | |||
257 | op = acpi_ps_create_scope_op(); | ||
258 | if (!op) { | ||
259 | status = AE_NO_MEMORY; | ||
260 | goto cleanup; | ||
261 | } | ||
262 | |||
263 | /* Create and initialize a new walk state */ | ||
264 | |||
265 | info->pass_number = ACPI_IMODE_EXECUTE; | ||
266 | walk_state = | ||
267 | acpi_ds_create_walk_state(info->obj_desc->method.owner_id, NULL, | ||
268 | NULL, NULL); | ||
269 | if (!walk_state) { | ||
270 | status = AE_NO_MEMORY; | ||
271 | goto cleanup; | ||
272 | } | ||
273 | |||
274 | status = acpi_ds_init_aml_walk(walk_state, op, info->resolved_node, | ||
275 | info->obj_desc->method.aml_start, | ||
276 | info->obj_desc->method.aml_length, info, | ||
277 | info->pass_number); | ||
278 | if (ACPI_FAILURE(status)) { | ||
279 | acpi_ds_delete_walk_state(walk_state); | ||
280 | goto cleanup; | ||
281 | } | ||
282 | |||
283 | /* Invoke an internal method if necessary */ | ||
284 | |||
285 | if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { | ||
286 | status = info->obj_desc->method.implementation(walk_state); | ||
287 | info->return_object = walk_state->return_desc; | ||
288 | |||
289 | /* Cleanup states */ | ||
290 | |||
291 | acpi_ds_scope_stack_clear(walk_state); | ||
292 | acpi_ps_cleanup_scope(&walk_state->parser_state); | ||
293 | acpi_ds_terminate_control_method(walk_state->method_desc, | ||
294 | walk_state); | ||
295 | acpi_ds_delete_walk_state(walk_state); | ||
296 | goto cleanup; | ||
297 | } | ||
298 | |||
299 | /* | ||
300 | * Start method evaluation with an implicit return of zero. | ||
301 | * This is done for Windows compatibility. | ||
302 | */ | ||
303 | if (acpi_gbl_enable_interpreter_slack) { | ||
304 | walk_state->implicit_return_obj = | ||
305 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | ||
306 | if (!walk_state->implicit_return_obj) { | ||
307 | status = AE_NO_MEMORY; | ||
308 | acpi_ds_delete_walk_state(walk_state); | ||
309 | goto cleanup; | ||
310 | } | ||
311 | |||
312 | walk_state->implicit_return_obj->integer.value = 0; | ||
313 | } | ||
314 | |||
315 | /* Parse the AML */ | ||
316 | |||
317 | status = acpi_ps_parse_aml(walk_state); | ||
318 | |||
319 | /* walk_state was deleted by parse_aml */ | ||
320 | |||
321 | cleanup: | ||
322 | acpi_ps_delete_parse_tree(op); | ||
323 | |||
324 | /* End optional tracing */ | ||
325 | |||
326 | acpi_ps_stop_trace(info); | ||
327 | |||
328 | /* Take away the extra reference that we gave the parameters above */ | ||
329 | |||
330 | acpi_ps_update_parameter_list(info, REF_DECREMENT); | ||
331 | |||
332 | /* Exit now if error above */ | ||
333 | |||
334 | if (ACPI_FAILURE(status)) { | ||
335 | return_ACPI_STATUS(status); | ||
336 | } | ||
337 | |||
338 | /* | ||
339 | * If the method has returned an object, signal this to the caller with | ||
340 | * a control exception code | ||
341 | */ | ||
342 | if (info->return_object) { | ||
343 | ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n", | ||
344 | info->return_object)); | ||
345 | ACPI_DUMP_STACK_ENTRY(info->return_object); | ||
346 | |||
347 | status = AE_CTRL_RETURN_VALUE; | ||
348 | } | ||
349 | |||
350 | return_ACPI_STATUS(status); | ||
351 | } | ||
352 | |||
353 | /******************************************************************************* | ||
354 | * | ||
355 | * FUNCTION: acpi_ps_update_parameter_list | ||
356 | * | ||
357 | * PARAMETERS: Info - See struct acpi_evaluate_info | ||
358 | * (Used: parameter_type and Parameters) | ||
359 | * Action - Add or Remove reference | ||
360 | * | ||
361 | * RETURN: Status | ||
362 | * | ||
363 | * DESCRIPTION: Update reference count on all method parameter objects | ||
364 | * | ||
365 | ******************************************************************************/ | ||
366 | |||
367 | static void | ||
368 | acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action) | ||
369 | { | ||
370 | u32 i; | ||
371 | |||
372 | if (info->parameters) { | ||
373 | |||
374 | /* Update reference count for each parameter */ | ||
375 | |||
376 | for (i = 0; info->parameters[i]; i++) { | ||
377 | |||
378 | /* Ignore errors, just do them all */ | ||
379 | |||
380 | (void)acpi_ut_update_object_reference(info-> | ||
381 | parameters[i], | ||
382 | action); | ||
383 | } | ||
384 | } | ||
385 | } | ||