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