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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: exoparg2 - AML execution - opcodes with 2 arguments | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
4a90c7e8 | 8 | * Copyright (C) 2000 - 2006, R. Byron Moore |
1da177e4 LT |
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 | ||
1da177e4 LT |
44 | #include <acpi/acpi.h> |
45 | #include <acpi/acparser.h> | |
46 | #include <acpi/acinterp.h> | |
47 | #include <acpi/acevents.h> | |
48 | #include <acpi/amlcode.h> | |
49 | ||
1da177e4 | 50 | #define _COMPONENT ACPI_EXECUTER |
4be44fcd | 51 | ACPI_MODULE_NAME("exoparg2") |
1da177e4 LT |
52 | |
53 | /*! | |
54 | * Naming convention for AML interpreter execution routines. | |
55 | * | |
56 | * The routines that begin execution of AML opcodes are named with a common | |
57 | * convention based upon the number of arguments, the number of target operands, | |
58 | * and whether or not a value is returned: | |
59 | * | |
60 | * AcpiExOpcode_xA_yT_zR | |
61 | * | |
62 | * Where: | |
63 | * | |
64 | * xA - ARGUMENTS: The number of arguments (input operands) that are | |
65 | * required for this opcode type (1 through 6 args). | |
66 | * yT - TARGETS: The number of targets (output operands) that are required | |
67 | * for this opcode type (0, 1, or 2 targets). | |
68 | * zR - RETURN VALUE: Indicates whether this opcode type returns a value | |
69 | * as the function return (0 or 1). | |
70 | * | |
71 | * The AcpiExOpcode* functions are called via the Dispatcher component with | |
72 | * fully resolved operands. | |
73 | !*/ | |
1da177e4 LT |
74 | /******************************************************************************* |
75 | * | |
76 | * FUNCTION: acpi_ex_opcode_2A_0T_0R | |
77 | * | |
78 | * PARAMETERS: walk_state - Current walk state | |
79 | * | |
80 | * RETURN: Status | |
81 | * | |
82 | * DESCRIPTION: Execute opcode with two arguments, no target, and no return | |
83 | * value. | |
84 | * | |
85 | * ALLOCATION: Deletes both operands | |
86 | * | |
87 | ******************************************************************************/ | |
4be44fcd | 88 | acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) |
1da177e4 | 89 | { |
4be44fcd LB |
90 | union acpi_operand_object **operand = &walk_state->operands[0]; |
91 | struct acpi_namespace_node *node; | |
92 | u32 value; | |
93 | acpi_status status = AE_OK; | |
1da177e4 | 94 | |
4be44fcd LB |
95 | ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_0T_0R", |
96 | acpi_ps_get_opcode_name(walk_state->opcode)); | |
1da177e4 LT |
97 | |
98 | /* Examine the opcode */ | |
99 | ||
100 | switch (walk_state->opcode) { | |
4be44fcd | 101 | case AML_NOTIFY_OP: /* Notify (notify_object, notify_value) */ |
1da177e4 LT |
102 | |
103 | /* The first operand is a namespace node */ | |
104 | ||
4be44fcd | 105 | node = (struct acpi_namespace_node *)operand[0]; |
1da177e4 LT |
106 | |
107 | /* Second value is the notify value */ | |
108 | ||
109 | value = (u32) operand[1]->integer.value; | |
110 | ||
44f6c012 | 111 | /* Are notifies allowed on this object? */ |
1da177e4 | 112 | |
4be44fcd | 113 | if (!acpi_ev_is_notify_object(node)) { |
b8e4d893 BM |
114 | ACPI_ERROR((AE_INFO, |
115 | "Unexpected notify object type [%s]", | |
116 | acpi_ut_get_type_name(node->type))); | |
1da177e4 LT |
117 | |
118 | status = AE_AML_OPERAND_TYPE; | |
119 | break; | |
120 | } | |
1da177e4 LT |
121 | #ifdef ACPI_GPE_NOTIFY_CHECK |
122 | /* | |
123 | * GPE method wake/notify check. Here, we want to ensure that we | |
124 | * don't receive any "device_wake" Notifies from a GPE _Lxx or _Exx | |
125 | * GPE method during system runtime. If we do, the GPE is marked | |
126 | * as "wake-only" and disabled. | |
127 | * | |
128 | * 1) Is the Notify() value == device_wake? | |
129 | * 2) Is this a GPE deferred method? (An _Lxx or _Exx method) | |
130 | * 3) Did the original GPE happen at system runtime? | |
131 | * (versus during wake) | |
132 | * | |
133 | * If all three cases are true, this is a wake-only GPE that should | |
134 | * be disabled at runtime. | |
135 | */ | |
4be44fcd LB |
136 | if (value == 2) { /* device_wake */ |
137 | status = | |
138 | acpi_ev_check_for_wake_only_gpe(walk_state-> | |
139 | gpe_event_info); | |
140 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
141 | /* AE_WAKE_ONLY_GPE only error, means ignore this notify */ |
142 | ||
4be44fcd | 143 | return_ACPI_STATUS(AE_OK) |
1da177e4 LT |
144 | } |
145 | } | |
146 | #endif | |
147 | ||
148 | /* | |
149 | * Dispatch the notify to the appropriate handler | |
150 | * NOTE: the request is queued for execution after this method | |
151 | * completes. The notify handlers are NOT invoked synchronously | |
152 | * from this thread -- because handlers may in turn run other | |
153 | * control methods. | |
154 | */ | |
4be44fcd | 155 | status = acpi_ev_queue_notify_request(node, value); |
1da177e4 LT |
156 | break; |
157 | ||
1da177e4 LT |
158 | default: |
159 | ||
b8e4d893 BM |
160 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
161 | walk_state->opcode)); | |
1da177e4 LT |
162 | status = AE_AML_BAD_OPCODE; |
163 | } | |
164 | ||
4be44fcd | 165 | return_ACPI_STATUS(status); |
1da177e4 LT |
166 | } |
167 | ||
1da177e4 LT |
168 | /******************************************************************************* |
169 | * | |
170 | * FUNCTION: acpi_ex_opcode_2A_2T_1R | |
171 | * | |
172 | * PARAMETERS: walk_state - Current walk state | |
173 | * | |
174 | * RETURN: Status | |
175 | * | |
176 | * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets | |
177 | * and one implicit return value. | |
178 | * | |
179 | ******************************************************************************/ | |
180 | ||
4be44fcd | 181 | acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 182 | { |
4be44fcd LB |
183 | union acpi_operand_object **operand = &walk_state->operands[0]; |
184 | union acpi_operand_object *return_desc1 = NULL; | |
185 | union acpi_operand_object *return_desc2 = NULL; | |
186 | acpi_status status; | |
1da177e4 | 187 | |
4be44fcd LB |
188 | ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_2T_1R", |
189 | acpi_ps_get_opcode_name(walk_state->opcode)); | |
1da177e4 | 190 | |
44f6c012 RM |
191 | /* Execute the opcode */ |
192 | ||
1da177e4 | 193 | switch (walk_state->opcode) { |
44f6c012 RM |
194 | case AML_DIVIDE_OP: |
195 | ||
196 | /* Divide (Dividend, Divisor, remainder_result quotient_result) */ | |
1da177e4 | 197 | |
4be44fcd LB |
198 | return_desc1 = |
199 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | |
1da177e4 LT |
200 | if (!return_desc1) { |
201 | status = AE_NO_MEMORY; | |
202 | goto cleanup; | |
203 | } | |
204 | ||
4be44fcd LB |
205 | return_desc2 = |
206 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | |
1da177e4 LT |
207 | if (!return_desc2) { |
208 | status = AE_NO_MEMORY; | |
209 | goto cleanup; | |
210 | } | |
211 | ||
212 | /* Quotient to return_desc1, remainder to return_desc2 */ | |
213 | ||
4be44fcd LB |
214 | status = acpi_ut_divide(operand[0]->integer.value, |
215 | operand[1]->integer.value, | |
216 | &return_desc1->integer.value, | |
217 | &return_desc2->integer.value); | |
218 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
219 | goto cleanup; |
220 | } | |
221 | break; | |
222 | ||
1da177e4 LT |
223 | default: |
224 | ||
b8e4d893 BM |
225 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
226 | walk_state->opcode)); | |
1da177e4 LT |
227 | status = AE_AML_BAD_OPCODE; |
228 | goto cleanup; | |
229 | } | |
230 | ||
1da177e4 LT |
231 | /* Store the results to the target reference operands */ |
232 | ||
4be44fcd LB |
233 | status = acpi_ex_store(return_desc2, operand[2], walk_state); |
234 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
235 | goto cleanup; |
236 | } | |
237 | ||
4be44fcd LB |
238 | status = acpi_ex_store(return_desc1, operand[3], walk_state); |
239 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
240 | goto cleanup; |
241 | } | |
242 | ||
243 | /* Return the remainder */ | |
244 | ||
245 | walk_state->result_obj = return_desc1; | |
246 | ||
4be44fcd | 247 | cleanup: |
1da177e4 LT |
248 | /* |
249 | * Since the remainder is not returned indirectly, remove a reference to | |
250 | * it. Only the quotient is returned indirectly. | |
251 | */ | |
4be44fcd | 252 | acpi_ut_remove_reference(return_desc2); |
1da177e4 | 253 | |
4be44fcd | 254 | if (ACPI_FAILURE(status)) { |
1da177e4 LT |
255 | /* Delete the return object */ |
256 | ||
4be44fcd | 257 | acpi_ut_remove_reference(return_desc1); |
1da177e4 LT |
258 | } |
259 | ||
4be44fcd | 260 | return_ACPI_STATUS(status); |
1da177e4 LT |
261 | } |
262 | ||
1da177e4 LT |
263 | /******************************************************************************* |
264 | * | |
265 | * FUNCTION: acpi_ex_opcode_2A_1T_1R | |
266 | * | |
267 | * PARAMETERS: walk_state - Current walk state | |
268 | * | |
269 | * RETURN: Status | |
270 | * | |
271 | * DESCRIPTION: Execute opcode with two arguments, one target, and a return | |
272 | * value. | |
273 | * | |
274 | ******************************************************************************/ | |
275 | ||
4be44fcd | 276 | acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 277 | { |
4be44fcd LB |
278 | union acpi_operand_object **operand = &walk_state->operands[0]; |
279 | union acpi_operand_object *return_desc = NULL; | |
280 | acpi_integer index; | |
281 | acpi_status status = AE_OK; | |
282 | acpi_size length; | |
1da177e4 | 283 | |
4be44fcd LB |
284 | ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_1T_1R", |
285 | acpi_ps_get_opcode_name(walk_state->opcode)); | |
1da177e4 | 286 | |
44f6c012 RM |
287 | /* Execute the opcode */ |
288 | ||
1da177e4 LT |
289 | if (walk_state->op_info->flags & AML_MATH) { |
290 | /* All simple math opcodes (add, etc.) */ | |
291 | ||
4be44fcd | 292 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
293 | if (!return_desc) { |
294 | status = AE_NO_MEMORY; | |
295 | goto cleanup; | |
296 | } | |
297 | ||
4be44fcd LB |
298 | return_desc->integer.value = |
299 | acpi_ex_do_math_op(walk_state->opcode, | |
300 | operand[0]->integer.value, | |
301 | operand[1]->integer.value); | |
1da177e4 LT |
302 | goto store_result_to_target; |
303 | } | |
304 | ||
1da177e4 | 305 | switch (walk_state->opcode) { |
4be44fcd | 306 | case AML_MOD_OP: /* Mod (Dividend, Divisor, remainder_result (ACPI 2.0) */ |
1da177e4 | 307 | |
4be44fcd | 308 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
309 | if (!return_desc) { |
310 | status = AE_NO_MEMORY; | |
311 | goto cleanup; | |
312 | } | |
313 | ||
314 | /* return_desc will contain the remainder */ | |
315 | ||
4be44fcd LB |
316 | status = acpi_ut_divide(operand[0]->integer.value, |
317 | operand[1]->integer.value, | |
318 | NULL, &return_desc->integer.value); | |
1da177e4 LT |
319 | break; |
320 | ||
4be44fcd | 321 | case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */ |
1da177e4 | 322 | |
4be44fcd LB |
323 | status = acpi_ex_do_concatenate(operand[0], operand[1], |
324 | &return_desc, walk_state); | |
1da177e4 LT |
325 | break; |
326 | ||
4be44fcd | 327 | case AML_TO_STRING_OP: /* to_string (Buffer, Length, Result) (ACPI 2.0) */ |
1da177e4 LT |
328 | |
329 | /* | |
330 | * Input object is guaranteed to be a buffer at this point (it may have | |
44f6c012 RM |
331 | * been converted.) Copy the raw buffer data to a new object of |
332 | * type String. | |
1da177e4 LT |
333 | */ |
334 | ||
335 | /* | |
336 | * Get the length of the new string. It is the smallest of: | |
337 | * 1) Length of the input buffer | |
338 | * 2) Max length as specified in the to_string operator | |
339 | * 3) Length of input buffer up to a zero byte (null terminator) | |
340 | * | |
341 | * NOTE: A length of zero is ok, and will create a zero-length, null | |
342 | * terminated string. | |
343 | */ | |
344 | length = 0; | |
345 | while ((length < operand[0]->buffer.length) && | |
4be44fcd LB |
346 | (length < operand[1]->integer.value) && |
347 | (operand[0]->buffer.pointer[length])) { | |
1da177e4 | 348 | length++; |
1da177e4 LT |
349 | } |
350 | ||
351 | /* Allocate a new string object */ | |
352 | ||
4be44fcd | 353 | return_desc = acpi_ut_create_string_object(length); |
1da177e4 LT |
354 | if (!return_desc) { |
355 | status = AE_NO_MEMORY; | |
356 | goto cleanup; | |
357 | } | |
358 | ||
c51a4de8 BM |
359 | /* |
360 | * Copy the raw buffer data with no transform. | |
361 | * (NULL terminated already) | |
362 | */ | |
4be44fcd LB |
363 | ACPI_MEMCPY(return_desc->string.pointer, |
364 | operand[0]->buffer.pointer, length); | |
1da177e4 LT |
365 | break; |
366 | ||
44f6c012 RM |
367 | case AML_CONCAT_RES_OP: |
368 | ||
369 | /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */ | |
1da177e4 | 370 | |
4be44fcd LB |
371 | status = acpi_ex_concat_template(operand[0], operand[1], |
372 | &return_desc, walk_state); | |
1da177e4 LT |
373 | break; |
374 | ||
4be44fcd | 375 | case AML_INDEX_OP: /* Index (Source Index Result) */ |
1da177e4 LT |
376 | |
377 | /* Create the internal return object */ | |
378 | ||
4be44fcd LB |
379 | return_desc = |
380 | acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); | |
1da177e4 LT |
381 | if (!return_desc) { |
382 | status = AE_NO_MEMORY; | |
383 | goto cleanup; | |
384 | } | |
385 | ||
44f6c012 RM |
386 | index = operand[1]->integer.value; |
387 | ||
388 | /* At this point, the Source operand is a Package, Buffer, or String */ | |
1da177e4 | 389 | |
4be44fcd | 390 | if (ACPI_GET_OBJECT_TYPE(operand[0]) == ACPI_TYPE_PACKAGE) { |
1da177e4 LT |
391 | /* Object to be indexed is a Package */ |
392 | ||
393 | if (index >= operand[0]->package.count) { | |
b8e4d893 BM |
394 | ACPI_ERROR((AE_INFO, |
395 | "Index value (%X%8.8X) beyond package end (%X)", | |
396 | ACPI_FORMAT_UINT64(index), | |
397 | operand[0]->package.count)); | |
1da177e4 LT |
398 | status = AE_AML_PACKAGE_LIMIT; |
399 | goto cleanup; | |
400 | } | |
401 | ||
402 | return_desc->reference.target_type = ACPI_TYPE_PACKAGE; | |
4be44fcd LB |
403 | return_desc->reference.object = operand[0]; |
404 | return_desc->reference.where = | |
405 | &operand[0]->package.elements[index]; | |
406 | } else { | |
1da177e4 LT |
407 | /* Object to be indexed is a Buffer/String */ |
408 | ||
409 | if (index >= operand[0]->buffer.length) { | |
b8e4d893 BM |
410 | ACPI_ERROR((AE_INFO, |
411 | "Index value (%X%8.8X) beyond end of buffer (%X)", | |
412 | ACPI_FORMAT_UINT64(index), | |
413 | operand[0]->buffer.length)); | |
1da177e4 LT |
414 | status = AE_AML_BUFFER_LIMIT; |
415 | goto cleanup; | |
416 | } | |
417 | ||
4be44fcd LB |
418 | return_desc->reference.target_type = |
419 | ACPI_TYPE_BUFFER_FIELD; | |
420 | return_desc->reference.object = operand[0]; | |
1da177e4 LT |
421 | } |
422 | ||
423 | /* | |
424 | * Add a reference to the target package/buffer/string for the life | |
425 | * of the index. | |
426 | */ | |
4be44fcd | 427 | acpi_ut_add_reference(operand[0]); |
1da177e4 LT |
428 | |
429 | /* Complete the Index reference object */ | |
430 | ||
4be44fcd LB |
431 | return_desc->reference.opcode = AML_INDEX_OP; |
432 | return_desc->reference.offset = (u32) index; | |
1da177e4 LT |
433 | |
434 | /* Store the reference to the Target */ | |
435 | ||
4be44fcd | 436 | status = acpi_ex_store(return_desc, operand[2], walk_state); |
1da177e4 LT |
437 | |
438 | /* Return the reference */ | |
439 | ||
440 | walk_state->result_obj = return_desc; | |
441 | goto cleanup; | |
442 | ||
1da177e4 LT |
443 | default: |
444 | ||
b8e4d893 BM |
445 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
446 | walk_state->opcode)); | |
1da177e4 LT |
447 | status = AE_AML_BAD_OPCODE; |
448 | break; | |
449 | } | |
450 | ||
4be44fcd | 451 | store_result_to_target: |
1da177e4 | 452 | |
4be44fcd | 453 | if (ACPI_SUCCESS(status)) { |
1da177e4 LT |
454 | /* |
455 | * Store the result of the operation (which is now in return_desc) into | |
456 | * the Target descriptor. | |
457 | */ | |
4be44fcd LB |
458 | status = acpi_ex_store(return_desc, operand[2], walk_state); |
459 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
460 | goto cleanup; |
461 | } | |
462 | ||
463 | if (!walk_state->result_obj) { | |
464 | walk_state->result_obj = return_desc; | |
465 | } | |
466 | } | |
467 | ||
4be44fcd | 468 | cleanup: |
1da177e4 LT |
469 | |
470 | /* Delete return object on error */ | |
471 | ||
4be44fcd LB |
472 | if (ACPI_FAILURE(status)) { |
473 | acpi_ut_remove_reference(return_desc); | |
1da177e4 LT |
474 | } |
475 | ||
4be44fcd | 476 | return_ACPI_STATUS(status); |
1da177e4 LT |
477 | } |
478 | ||
1da177e4 LT |
479 | /******************************************************************************* |
480 | * | |
481 | * FUNCTION: acpi_ex_opcode_2A_0T_1R | |
482 | * | |
483 | * PARAMETERS: walk_state - Current walk state | |
484 | * | |
485 | * RETURN: Status | |
486 | * | |
487 | * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value | |
488 | * | |
489 | ******************************************************************************/ | |
490 | ||
4be44fcd | 491 | acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 492 | { |
4be44fcd LB |
493 | union acpi_operand_object **operand = &walk_state->operands[0]; |
494 | union acpi_operand_object *return_desc = NULL; | |
495 | acpi_status status = AE_OK; | |
496 | u8 logical_result = FALSE; | |
1da177e4 | 497 | |
4be44fcd LB |
498 | ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_0T_1R", |
499 | acpi_ps_get_opcode_name(walk_state->opcode)); | |
1da177e4 LT |
500 | |
501 | /* Create the internal return object */ | |
502 | ||
4be44fcd | 503 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
504 | if (!return_desc) { |
505 | status = AE_NO_MEMORY; | |
506 | goto cleanup; | |
507 | } | |
508 | ||
44f6c012 RM |
509 | /* Execute the Opcode */ |
510 | ||
511 | if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) { | |
512 | /* logical_op (Operand0, Operand1) */ | |
513 | ||
4be44fcd LB |
514 | status = acpi_ex_do_logical_numeric_op(walk_state->opcode, |
515 | operand[0]->integer. | |
516 | value, | |
517 | operand[1]->integer. | |
518 | value, &logical_result); | |
1da177e4 | 519 | goto store_logical_result; |
4be44fcd | 520 | } else if (walk_state->op_info->flags & AML_LOGICAL) { |
44f6c012 RM |
521 | /* logical_op (Operand0, Operand1) */ |
522 | ||
4be44fcd LB |
523 | status = acpi_ex_do_logical_op(walk_state->opcode, operand[0], |
524 | operand[1], &logical_result); | |
1da177e4 LT |
525 | goto store_logical_result; |
526 | } | |
527 | ||
1da177e4 | 528 | switch (walk_state->opcode) { |
4be44fcd | 529 | case AML_ACQUIRE_OP: /* Acquire (mutex_object, Timeout) */ |
1da177e4 | 530 | |
4be44fcd LB |
531 | status = |
532 | acpi_ex_acquire_mutex(operand[1], operand[0], walk_state); | |
1da177e4 | 533 | if (status == AE_TIME) { |
4be44fcd | 534 | logical_result = TRUE; /* TRUE = Acquire timed out */ |
1da177e4 LT |
535 | status = AE_OK; |
536 | } | |
537 | break; | |
538 | ||
4be44fcd | 539 | case AML_WAIT_OP: /* Wait (event_object, Timeout) */ |
1da177e4 | 540 | |
4be44fcd | 541 | status = acpi_ex_system_wait_event(operand[1], operand[0]); |
1da177e4 | 542 | if (status == AE_TIME) { |
4be44fcd | 543 | logical_result = TRUE; /* TRUE, Wait timed out */ |
1da177e4 LT |
544 | status = AE_OK; |
545 | } | |
546 | break; | |
547 | ||
1da177e4 LT |
548 | default: |
549 | ||
b8e4d893 BM |
550 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
551 | walk_state->opcode)); | |
1da177e4 LT |
552 | status = AE_AML_BAD_OPCODE; |
553 | goto cleanup; | |
554 | } | |
555 | ||
4be44fcd | 556 | store_logical_result: |
1da177e4 LT |
557 | /* |
558 | * Set return value to according to logical_result. logical TRUE (all ones) | |
559 | * Default is FALSE (zero) | |
560 | */ | |
561 | if (logical_result) { | |
562 | return_desc->integer.value = ACPI_INTEGER_MAX; | |
563 | } | |
564 | ||
565 | walk_state->result_obj = return_desc; | |
566 | ||
4be44fcd | 567 | cleanup: |
1da177e4 LT |
568 | |
569 | /* Delete return object on error */ | |
570 | ||
4be44fcd LB |
571 | if (ACPI_FAILURE(status)) { |
572 | acpi_ut_remove_reference(return_desc); | |
1da177e4 LT |
573 | } |
574 | ||
4be44fcd | 575 | return_ACPI_STATUS(status); |
1da177e4 | 576 | } |