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43
44#include <acpi/acpi.h>
45#include "accommon.h"
46#include "acinterp.h"
47#include "amlcode.h"
48#include "acnamesp.h"
49
50#define _COMPONENT ACPI_EXECUTER
51ACPI_MODULE_NAME("excreate")
52#ifndef ACPI_NO_METHOD_EXECUTION
53
54
55
56
57
58
59
60
61
62
63
64acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state)
65{
66 struct acpi_namespace_node *target_node;
67 struct acpi_namespace_node *alias_node;
68 acpi_status status = AE_OK;
69
70 ACPI_FUNCTION_TRACE(ex_create_alias);
71
72
73
74 alias_node = (struct acpi_namespace_node *)walk_state->operands[0];
75 target_node = (struct acpi_namespace_node *)walk_state->operands[1];
76
77 if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) ||
78 (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
79
80
81
82
83
84
85 target_node =
86 ACPI_CAST_PTR(struct acpi_namespace_node,
87 target_node->object);
88 }
89
90
91
92
93
94
95
96
97 switch (target_node->type) {
98
99
100
101 case ACPI_TYPE_INTEGER:
102 case ACPI_TYPE_STRING:
103 case ACPI_TYPE_BUFFER:
104 case ACPI_TYPE_PACKAGE:
105 case ACPI_TYPE_BUFFER_FIELD:
106
107
108
109
110
111 case ACPI_TYPE_DEVICE:
112 case ACPI_TYPE_POWER:
113 case ACPI_TYPE_PROCESSOR:
114 case ACPI_TYPE_THERMAL:
115 case ACPI_TYPE_LOCAL_SCOPE:
116
117
118
119
120
121 alias_node->type = ACPI_TYPE_LOCAL_ALIAS;
122 alias_node->object =
123 ACPI_CAST_PTR(union acpi_operand_object, target_node);
124 break;
125
126 case ACPI_TYPE_METHOD:
127
128
129
130
131 alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS;
132 alias_node->object =
133 ACPI_CAST_PTR(union acpi_operand_object, target_node);
134 break;
135
136 default:
137
138
139
140
141
142
143
144
145
146 status = acpi_ns_attach_object(alias_node,
147 acpi_ns_get_attached_object
148 (target_node),
149 target_node->type);
150 break;
151 }
152
153
154
155 return_ACPI_STATUS(status);
156}
157
158
159
160
161
162
163
164
165
166
167
168
169
170acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state)
171{
172 acpi_status status;
173 union acpi_operand_object *obj_desc;
174
175 ACPI_FUNCTION_TRACE(ex_create_event);
176
177 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT);
178 if (!obj_desc) {
179 status = AE_NO_MEMORY;
180 goto cleanup;
181 }
182
183
184
185
186
187 status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0,
188 &obj_desc->event.os_semaphore);
189 if (ACPI_FAILURE(status)) {
190 goto cleanup;
191 }
192
193
194
195 status =
196 acpi_ns_attach_object((struct acpi_namespace_node *)walk_state->
197 operands[0], obj_desc, ACPI_TYPE_EVENT);
198
199 cleanup:
200
201
202
203
204 acpi_ut_remove_reference(obj_desc);
205 return_ACPI_STATUS(status);
206}
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state)
223{
224 acpi_status status = AE_OK;
225 union acpi_operand_object *obj_desc;
226
227 ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS);
228
229
230
231 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX);
232 if (!obj_desc) {
233 status = AE_NO_MEMORY;
234 goto cleanup;
235 }
236
237
238
239 status = acpi_os_create_mutex(&obj_desc->mutex.os_mutex);
240 if (ACPI_FAILURE(status)) {
241 goto cleanup;
242 }
243
244
245
246 obj_desc->mutex.sync_level =
247 (u8) walk_state->operands[1]->integer.value;
248 obj_desc->mutex.node =
249 (struct acpi_namespace_node *)walk_state->operands[0];
250
251 status =
252 acpi_ns_attach_object(obj_desc->mutex.node, obj_desc,
253 ACPI_TYPE_MUTEX);
254
255 cleanup:
256
257
258
259
260 acpi_ut_remove_reference(obj_desc);
261 return_ACPI_STATUS(status);
262}
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279acpi_status
280acpi_ex_create_region(u8 * aml_start,
281 u32 aml_length,
282 u8 region_space, struct acpi_walk_state *walk_state)
283{
284 acpi_status status;
285 union acpi_operand_object *obj_desc;
286 struct acpi_namespace_node *node;
287 union acpi_operand_object *region_obj2;
288
289 ACPI_FUNCTION_TRACE(ex_create_region);
290
291
292
293 node = walk_state->op->common.node;
294
295
296
297
298
299 if (acpi_ns_get_attached_object(node)) {
300 return_ACPI_STATUS(AE_OK);
301 }
302
303
304
305
306
307 if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) &&
308 (region_space < ACPI_USER_REGION_BEGIN)) {
309 ACPI_ERROR((AE_INFO, "Invalid AddressSpace type 0x%X",
310 region_space));
311 return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID);
312 }
313
314 ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (0x%X)\n",
315 acpi_ut_get_region_name(region_space), region_space));
316
317
318
319 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION);
320 if (!obj_desc) {
321 status = AE_NO_MEMORY;
322 goto cleanup;
323 }
324
325
326
327
328
329 region_obj2 = obj_desc->common.next_object;
330 region_obj2->extra.aml_start = aml_start;
331 region_obj2->extra.aml_length = aml_length;
332
333
334
335 obj_desc->region.space_id = region_space;
336 obj_desc->region.address = 0;
337 obj_desc->region.length = 0;
338 obj_desc->region.node = node;
339
340
341
342 status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION);
343
344 cleanup:
345
346
347
348 acpi_ut_remove_reference(obj_desc);
349 return_ACPI_STATUS(status);
350}
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state)
367{
368 union acpi_operand_object **operand = &walk_state->operands[0];
369 union acpi_operand_object *obj_desc;
370 acpi_status status;
371
372 ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state);
373
374
375
376 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PROCESSOR);
377 if (!obj_desc) {
378 return_ACPI_STATUS(AE_NO_MEMORY);
379 }
380
381
382
383 obj_desc->processor.proc_id = (u8) operand[1]->integer.value;
384 obj_desc->processor.length = (u8) operand[3]->integer.value;
385 obj_desc->processor.address =
386 (acpi_io_address) operand[2]->integer.value;
387
388
389
390 status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
391 obj_desc, ACPI_TYPE_PROCESSOR);
392
393
394
395 acpi_ut_remove_reference(obj_desc);
396 return_ACPI_STATUS(status);
397}
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state)
414{
415 union acpi_operand_object **operand = &walk_state->operands[0];
416 acpi_status status;
417 union acpi_operand_object *obj_desc;
418
419 ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state);
420
421
422
423 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_POWER);
424 if (!obj_desc) {
425 return_ACPI_STATUS(AE_NO_MEMORY);
426 }
427
428
429
430 obj_desc->power_resource.system_level = (u8) operand[1]->integer.value;
431 obj_desc->power_resource.resource_order =
432 (u16) operand[2]->integer.value;
433
434
435
436 status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
437 obj_desc, ACPI_TYPE_POWER);
438
439
440
441 acpi_ut_remove_reference(obj_desc);
442 return_ACPI_STATUS(status);
443}
444#endif
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460acpi_status
461acpi_ex_create_method(u8 * aml_start,
462 u32 aml_length, struct acpi_walk_state *walk_state)
463{
464 union acpi_operand_object **operand = &walk_state->operands[0];
465 union acpi_operand_object *obj_desc;
466 acpi_status status;
467 u8 method_flags;
468
469 ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state);
470
471
472
473 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_METHOD);
474 if (!obj_desc) {
475 status = AE_NO_MEMORY;
476 goto exit;
477 }
478
479
480
481 obj_desc->method.aml_start = aml_start;
482 obj_desc->method.aml_length = aml_length;
483
484
485
486
487
488 method_flags = (u8) operand[1]->integer.value;
489
490 obj_desc->method.param_count =
491 (u8) (method_flags & AML_METHOD_ARG_COUNT);
492
493
494
495
496
497 if (method_flags & AML_METHOD_SERIALIZED) {
498 obj_desc->method.info_flags = ACPI_METHOD_SERIALIZED;
499
500
501
502
503
504 obj_desc->method.sync_level = (u8)
505 ((method_flags & AML_METHOD_SYNC_LEVEL) >> 4);
506 }
507
508
509
510 status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
511 obj_desc, ACPI_TYPE_METHOD);
512
513
514
515 acpi_ut_remove_reference(obj_desc);
516
517 exit:
518
519
520 acpi_ut_remove_reference(operand[1]);
521 return_ACPI_STATUS(status);
522}
523