Commit | Line | Data |
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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: exoparg2 - AML execution - opcodes with 2 arguments | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
75a44ce0 | 8 | * Copyright (C) 2000 - 2008, Intel Corp. |
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 | 44 | #include <acpi/acpi.h> |
50df4d8b | 45 | #include <acpi/accommon.h> |
1da177e4 LT |
46 | #include <acpi/acparser.h> |
47 | #include <acpi/acinterp.h> | |
48 | #include <acpi/acevents.h> | |
49 | #include <acpi/amlcode.h> | |
50 | ||
1da177e4 | 51 | #define _COMPONENT ACPI_EXECUTER |
4be44fcd | 52 | ACPI_MODULE_NAME("exoparg2") |
1da177e4 LT |
53 | |
54 | /*! | |
55 | * Naming convention for AML interpreter execution routines. | |
56 | * | |
57 | * The routines that begin execution of AML opcodes are named with a common | |
58 | * convention based upon the number of arguments, the number of target operands, | |
59 | * and whether or not a value is returned: | |
60 | * | |
61 | * AcpiExOpcode_xA_yT_zR | |
62 | * | |
63 | * Where: | |
64 | * | |
65 | * xA - ARGUMENTS: The number of arguments (input operands) that are | |
66 | * required for this opcode type (1 through 6 args). | |
67 | * yT - TARGETS: The number of targets (output operands) that are required | |
68 | * for this opcode type (0, 1, or 2 targets). | |
69 | * zR - RETURN VALUE: Indicates whether this opcode type returns a value | |
70 | * as the function return (0 or 1). | |
71 | * | |
72 | * The AcpiExOpcode* functions are called via the Dispatcher component with | |
73 | * fully resolved operands. | |
74 | !*/ | |
1da177e4 LT |
75 | /******************************************************************************* |
76 | * | |
77 | * FUNCTION: acpi_ex_opcode_2A_0T_0R | |
78 | * | |
79 | * PARAMETERS: walk_state - Current walk state | |
80 | * | |
81 | * RETURN: Status | |
82 | * | |
83 | * DESCRIPTION: Execute opcode with two arguments, no target, and no return | |
84 | * value. | |
85 | * | |
86 | * ALLOCATION: Deletes both operands | |
87 | * | |
88 | ******************************************************************************/ | |
4be44fcd | 89 | acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) |
1da177e4 | 90 | { |
4be44fcd LB |
91 | union acpi_operand_object **operand = &walk_state->operands[0]; |
92 | struct acpi_namespace_node *node; | |
93 | u32 value; | |
94 | acpi_status status = AE_OK; | |
1da177e4 | 95 | |
b229cf92 | 96 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R, |
4be44fcd | 97 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 LT |
98 | |
99 | /* Examine the opcode */ | |
100 | ||
101 | switch (walk_state->opcode) { | |
4be44fcd | 102 | case AML_NOTIFY_OP: /* Notify (notify_object, notify_value) */ |
1da177e4 LT |
103 | |
104 | /* The first operand is a namespace node */ | |
105 | ||
4be44fcd | 106 | node = (struct acpi_namespace_node *)operand[0]; |
1da177e4 LT |
107 | |
108 | /* Second value is the notify value */ | |
109 | ||
110 | value = (u32) operand[1]->integer.value; | |
111 | ||
44f6c012 | 112 | /* Are notifies allowed on this object? */ |
1da177e4 | 113 | |
4be44fcd | 114 | if (!acpi_ev_is_notify_object(node)) { |
b8e4d893 BM |
115 | ACPI_ERROR((AE_INFO, |
116 | "Unexpected notify object type [%s]", | |
117 | acpi_ut_get_type_name(node->type))); | |
1da177e4 LT |
118 | |
119 | status = AE_AML_OPERAND_TYPE; | |
120 | break; | |
121 | } | |
1da177e4 LT |
122 | #ifdef ACPI_GPE_NOTIFY_CHECK |
123 | /* | |
124 | * GPE method wake/notify check. Here, we want to ensure that we | |
b229cf92 | 125 | * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx |
1da177e4 LT |
126 | * GPE method during system runtime. If we do, the GPE is marked |
127 | * as "wake-only" and disabled. | |
128 | * | |
129 | * 1) Is the Notify() value == device_wake? | |
130 | * 2) Is this a GPE deferred method? (An _Lxx or _Exx method) | |
131 | * 3) Did the original GPE happen at system runtime? | |
132 | * (versus during wake) | |
133 | * | |
134 | * If all three cases are true, this is a wake-only GPE that should | |
135 | * be disabled at runtime. | |
136 | */ | |
4be44fcd LB |
137 | if (value == 2) { /* device_wake */ |
138 | status = | |
139 | acpi_ev_check_for_wake_only_gpe(walk_state-> | |
140 | gpe_event_info); | |
141 | if (ACPI_FAILURE(status)) { | |
52fc0b02 | 142 | |
1da177e4 LT |
143 | /* AE_WAKE_ONLY_GPE only error, means ignore this notify */ |
144 | ||
4be44fcd | 145 | return_ACPI_STATUS(AE_OK) |
1da177e4 LT |
146 | } |
147 | } | |
148 | #endif | |
149 | ||
150 | /* | |
151 | * Dispatch the notify to the appropriate handler | |
152 | * NOTE: the request is queued for execution after this method | |
153 | * completes. The notify handlers are NOT invoked synchronously | |
154 | * from this thread -- because handlers may in turn run other | |
155 | * control methods. | |
156 | */ | |
4be44fcd | 157 | status = acpi_ev_queue_notify_request(node, value); |
1da177e4 LT |
158 | break; |
159 | ||
1da177e4 LT |
160 | default: |
161 | ||
b8e4d893 BM |
162 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
163 | walk_state->opcode)); | |
1da177e4 LT |
164 | status = AE_AML_BAD_OPCODE; |
165 | } | |
166 | ||
4be44fcd | 167 | return_ACPI_STATUS(status); |
1da177e4 LT |
168 | } |
169 | ||
1da177e4 LT |
170 | /******************************************************************************* |
171 | * | |
172 | * FUNCTION: acpi_ex_opcode_2A_2T_1R | |
173 | * | |
174 | * PARAMETERS: walk_state - Current walk state | |
175 | * | |
176 | * RETURN: Status | |
177 | * | |
178 | * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets | |
179 | * and one implicit return value. | |
180 | * | |
181 | ******************************************************************************/ | |
182 | ||
4be44fcd | 183 | acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 184 | { |
4be44fcd LB |
185 | union acpi_operand_object **operand = &walk_state->operands[0]; |
186 | union acpi_operand_object *return_desc1 = NULL; | |
187 | union acpi_operand_object *return_desc2 = NULL; | |
188 | acpi_status status; | |
1da177e4 | 189 | |
b229cf92 | 190 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R, |
4be44fcd | 191 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 | 192 | |
44f6c012 RM |
193 | /* Execute the opcode */ |
194 | ||
1da177e4 | 195 | switch (walk_state->opcode) { |
44f6c012 RM |
196 | case AML_DIVIDE_OP: |
197 | ||
198 | /* Divide (Dividend, Divisor, remainder_result quotient_result) */ | |
1da177e4 | 199 | |
4be44fcd LB |
200 | return_desc1 = |
201 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | |
1da177e4 LT |
202 | if (!return_desc1) { |
203 | status = AE_NO_MEMORY; | |
204 | goto cleanup; | |
205 | } | |
206 | ||
4be44fcd LB |
207 | return_desc2 = |
208 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | |
1da177e4 LT |
209 | if (!return_desc2) { |
210 | status = AE_NO_MEMORY; | |
211 | goto cleanup; | |
212 | } | |
213 | ||
214 | /* Quotient to return_desc1, remainder to return_desc2 */ | |
215 | ||
4be44fcd LB |
216 | status = acpi_ut_divide(operand[0]->integer.value, |
217 | operand[1]->integer.value, | |
218 | &return_desc1->integer.value, | |
219 | &return_desc2->integer.value); | |
220 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
221 | goto cleanup; |
222 | } | |
223 | break; | |
224 | ||
1da177e4 LT |
225 | default: |
226 | ||
b8e4d893 BM |
227 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
228 | walk_state->opcode)); | |
1da177e4 LT |
229 | status = AE_AML_BAD_OPCODE; |
230 | goto cleanup; | |
231 | } | |
232 | ||
1da177e4 LT |
233 | /* Store the results to the target reference operands */ |
234 | ||
4be44fcd LB |
235 | status = acpi_ex_store(return_desc2, operand[2], walk_state); |
236 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
237 | goto cleanup; |
238 | } | |
239 | ||
4be44fcd LB |
240 | status = acpi_ex_store(return_desc1, operand[3], walk_state); |
241 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
242 | goto cleanup; |
243 | } | |
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)) { |
52fc0b02 | 253 | |
1da177e4 LT |
254 | /* Delete the return object */ |
255 | ||
4be44fcd | 256 | acpi_ut_remove_reference(return_desc1); |
1da177e4 LT |
257 | } |
258 | ||
4b6e16cf BM |
259 | /* Save return object (the remainder) on success */ |
260 | ||
261 | else { | |
262 | walk_state->result_obj = return_desc1; | |
263 | } | |
264 | ||
4be44fcd | 265 | return_ACPI_STATUS(status); |
1da177e4 LT |
266 | } |
267 | ||
1da177e4 LT |
268 | /******************************************************************************* |
269 | * | |
270 | * FUNCTION: acpi_ex_opcode_2A_1T_1R | |
271 | * | |
272 | * PARAMETERS: walk_state - Current walk state | |
273 | * | |
274 | * RETURN: Status | |
275 | * | |
276 | * DESCRIPTION: Execute opcode with two arguments, one target, and a return | |
277 | * value. | |
278 | * | |
279 | ******************************************************************************/ | |
280 | ||
4be44fcd | 281 | acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 282 | { |
4be44fcd LB |
283 | union acpi_operand_object **operand = &walk_state->operands[0]; |
284 | union acpi_operand_object *return_desc = NULL; | |
285 | acpi_integer index; | |
286 | acpi_status status = AE_OK; | |
287 | acpi_size length; | |
1da177e4 | 288 | |
b229cf92 | 289 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R, |
4be44fcd | 290 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 | 291 | |
44f6c012 RM |
292 | /* Execute the opcode */ |
293 | ||
1da177e4 | 294 | if (walk_state->op_info->flags & AML_MATH) { |
52fc0b02 | 295 | |
1da177e4 LT |
296 | /* All simple math opcodes (add, etc.) */ |
297 | ||
4be44fcd | 298 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
299 | if (!return_desc) { |
300 | status = AE_NO_MEMORY; | |
301 | goto cleanup; | |
302 | } | |
303 | ||
4be44fcd LB |
304 | return_desc->integer.value = |
305 | acpi_ex_do_math_op(walk_state->opcode, | |
306 | operand[0]->integer.value, | |
307 | operand[1]->integer.value); | |
1da177e4 LT |
308 | goto store_result_to_target; |
309 | } | |
310 | ||
1da177e4 | 311 | switch (walk_state->opcode) { |
4be44fcd | 312 | case AML_MOD_OP: /* Mod (Dividend, Divisor, remainder_result (ACPI 2.0) */ |
1da177e4 | 313 | |
4be44fcd | 314 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
315 | if (!return_desc) { |
316 | status = AE_NO_MEMORY; | |
317 | goto cleanup; | |
318 | } | |
319 | ||
320 | /* return_desc will contain the remainder */ | |
321 | ||
4be44fcd LB |
322 | status = acpi_ut_divide(operand[0]->integer.value, |
323 | operand[1]->integer.value, | |
324 | NULL, &return_desc->integer.value); | |
1da177e4 LT |
325 | break; |
326 | ||
4be44fcd | 327 | case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */ |
1da177e4 | 328 | |
4be44fcd LB |
329 | status = acpi_ex_do_concatenate(operand[0], operand[1], |
330 | &return_desc, walk_state); | |
1da177e4 LT |
331 | break; |
332 | ||
4be44fcd | 333 | case AML_TO_STRING_OP: /* to_string (Buffer, Length, Result) (ACPI 2.0) */ |
1da177e4 LT |
334 | |
335 | /* | |
336 | * Input object is guaranteed to be a buffer at this point (it may have | |
44f6c012 RM |
337 | * been converted.) Copy the raw buffer data to a new object of |
338 | * type String. | |
1da177e4 LT |
339 | */ |
340 | ||
341 | /* | |
342 | * Get the length of the new string. It is the smallest of: | |
343 | * 1) Length of the input buffer | |
344 | * 2) Max length as specified in the to_string operator | |
345 | * 3) Length of input buffer up to a zero byte (null terminator) | |
346 | * | |
347 | * NOTE: A length of zero is ok, and will create a zero-length, null | |
348 | * terminated string. | |
349 | */ | |
350 | length = 0; | |
351 | while ((length < operand[0]->buffer.length) && | |
4be44fcd LB |
352 | (length < operand[1]->integer.value) && |
353 | (operand[0]->buffer.pointer[length])) { | |
1da177e4 | 354 | length++; |
1da177e4 LT |
355 | } |
356 | ||
357 | /* Allocate a new string object */ | |
358 | ||
4be44fcd | 359 | return_desc = acpi_ut_create_string_object(length); |
1da177e4 LT |
360 | if (!return_desc) { |
361 | status = AE_NO_MEMORY; | |
362 | goto cleanup; | |
363 | } | |
364 | ||
c51a4de8 BM |
365 | /* |
366 | * Copy the raw buffer data with no transform. | |
367 | * (NULL terminated already) | |
368 | */ | |
4be44fcd LB |
369 | ACPI_MEMCPY(return_desc->string.pointer, |
370 | operand[0]->buffer.pointer, length); | |
1da177e4 LT |
371 | break; |
372 | ||
44f6c012 RM |
373 | case AML_CONCAT_RES_OP: |
374 | ||
375 | /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */ | |
1da177e4 | 376 | |
4be44fcd LB |
377 | status = acpi_ex_concat_template(operand[0], operand[1], |
378 | &return_desc, walk_state); | |
1da177e4 LT |
379 | break; |
380 | ||
4be44fcd | 381 | case AML_INDEX_OP: /* Index (Source Index Result) */ |
1da177e4 LT |
382 | |
383 | /* Create the internal return object */ | |
384 | ||
4be44fcd LB |
385 | return_desc = |
386 | acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); | |
1da177e4 LT |
387 | if (!return_desc) { |
388 | status = AE_NO_MEMORY; | |
389 | goto cleanup; | |
390 | } | |
391 | ||
52fc0b02 BM |
392 | /* Initialize the Index reference object */ |
393 | ||
44f6c012 | 394 | index = operand[1]->integer.value; |
1044f1f6 BM |
395 | return_desc->reference.value = (u32) index; |
396 | return_desc->reference.class = ACPI_REFCLASS_INDEX; | |
44f6c012 | 397 | |
52fc0b02 BM |
398 | /* |
399 | * At this point, the Source operand is a String, Buffer, or Package. | |
400 | * Verify that the index is within range. | |
401 | */ | |
402 | switch (ACPI_GET_OBJECT_TYPE(operand[0])) { | |
403 | case ACPI_TYPE_STRING: | |
1da177e4 | 404 | |
52fc0b02 BM |
405 | if (index >= operand[0]->string.length) { |
406 | status = AE_AML_STRING_LIMIT; | |
407 | } | |
408 | ||
409 | return_desc->reference.target_type = | |
410 | ACPI_TYPE_BUFFER_FIELD; | |
411 | break; | |
412 | ||
413 | case ACPI_TYPE_BUFFER: | |
414 | ||
415 | if (index >= operand[0]->buffer.length) { | |
416 | status = AE_AML_BUFFER_LIMIT; | |
417 | } | |
418 | ||
419 | return_desc->reference.target_type = | |
420 | ACPI_TYPE_BUFFER_FIELD; | |
421 | break; | |
422 | ||
423 | case ACPI_TYPE_PACKAGE: | |
1da177e4 LT |
424 | |
425 | if (index >= operand[0]->package.count) { | |
1da177e4 | 426 | status = AE_AML_PACKAGE_LIMIT; |
1da177e4 LT |
427 | } |
428 | ||
429 | return_desc->reference.target_type = ACPI_TYPE_PACKAGE; | |
4be44fcd LB |
430 | return_desc->reference.where = |
431 | &operand[0]->package.elements[index]; | |
52fc0b02 | 432 | break; |
1da177e4 | 433 | |
52fc0b02 | 434 | default: |
1da177e4 | 435 | |
52fc0b02 BM |
436 | status = AE_AML_INTERNAL; |
437 | goto cleanup; | |
438 | } | |
439 | ||
440 | /* Failure means that the Index was beyond the end of the object */ | |
441 | ||
442 | if (ACPI_FAILURE(status)) { | |
443 | ACPI_EXCEPTION((AE_INFO, status, | |
444 | "Index (%X%8.8X) is beyond end of object", | |
445 | ACPI_FORMAT_UINT64(index))); | |
446 | goto cleanup; | |
1da177e4 LT |
447 | } |
448 | ||
449 | /* | |
8313524a | 450 | * Save the target object and add a reference to it for the life |
52fc0b02 | 451 | * of the index |
1da177e4 | 452 | */ |
8313524a | 453 | return_desc->reference.object = operand[0]; |
4be44fcd | 454 | acpi_ut_add_reference(operand[0]); |
1da177e4 | 455 | |
1da177e4 LT |
456 | /* Store the reference to the Target */ |
457 | ||
4be44fcd | 458 | status = acpi_ex_store(return_desc, operand[2], walk_state); |
1da177e4 LT |
459 | |
460 | /* Return the reference */ | |
461 | ||
462 | walk_state->result_obj = return_desc; | |
463 | goto cleanup; | |
464 | ||
1da177e4 LT |
465 | default: |
466 | ||
b8e4d893 BM |
467 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
468 | walk_state->opcode)); | |
1da177e4 LT |
469 | status = AE_AML_BAD_OPCODE; |
470 | break; | |
471 | } | |
472 | ||
4be44fcd | 473 | store_result_to_target: |
1da177e4 | 474 | |
4be44fcd | 475 | if (ACPI_SUCCESS(status)) { |
1da177e4 LT |
476 | /* |
477 | * Store the result of the operation (which is now in return_desc) into | |
478 | * the Target descriptor. | |
479 | */ | |
4be44fcd LB |
480 | status = acpi_ex_store(return_desc, operand[2], walk_state); |
481 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
482 | goto cleanup; |
483 | } | |
484 | ||
485 | if (!walk_state->result_obj) { | |
486 | walk_state->result_obj = return_desc; | |
487 | } | |
488 | } | |
489 | ||
4be44fcd | 490 | cleanup: |
1da177e4 LT |
491 | |
492 | /* Delete return object on error */ | |
493 | ||
4be44fcd LB |
494 | if (ACPI_FAILURE(status)) { |
495 | acpi_ut_remove_reference(return_desc); | |
4b6e16cf | 496 | walk_state->result_obj = NULL; |
1da177e4 LT |
497 | } |
498 | ||
4be44fcd | 499 | return_ACPI_STATUS(status); |
1da177e4 LT |
500 | } |
501 | ||
1da177e4 LT |
502 | /******************************************************************************* |
503 | * | |
504 | * FUNCTION: acpi_ex_opcode_2A_0T_1R | |
505 | * | |
506 | * PARAMETERS: walk_state - Current walk state | |
507 | * | |
508 | * RETURN: Status | |
509 | * | |
510 | * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value | |
511 | * | |
512 | ******************************************************************************/ | |
513 | ||
4be44fcd | 514 | acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 515 | { |
4be44fcd LB |
516 | union acpi_operand_object **operand = &walk_state->operands[0]; |
517 | union acpi_operand_object *return_desc = NULL; | |
518 | acpi_status status = AE_OK; | |
519 | u8 logical_result = FALSE; | |
1da177e4 | 520 | |
b229cf92 | 521 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R, |
4be44fcd | 522 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 LT |
523 | |
524 | /* Create the internal return object */ | |
525 | ||
4be44fcd | 526 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
527 | if (!return_desc) { |
528 | status = AE_NO_MEMORY; | |
529 | goto cleanup; | |
530 | } | |
531 | ||
44f6c012 RM |
532 | /* Execute the Opcode */ |
533 | ||
534 | if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) { | |
52fc0b02 | 535 | |
44f6c012 RM |
536 | /* logical_op (Operand0, Operand1) */ |
537 | ||
4be44fcd LB |
538 | status = acpi_ex_do_logical_numeric_op(walk_state->opcode, |
539 | operand[0]->integer. | |
540 | value, | |
541 | operand[1]->integer. | |
542 | value, &logical_result); | |
1da177e4 | 543 | goto store_logical_result; |
4be44fcd | 544 | } else if (walk_state->op_info->flags & AML_LOGICAL) { |
52fc0b02 | 545 | |
44f6c012 RM |
546 | /* logical_op (Operand0, Operand1) */ |
547 | ||
4be44fcd LB |
548 | status = acpi_ex_do_logical_op(walk_state->opcode, operand[0], |
549 | operand[1], &logical_result); | |
1da177e4 LT |
550 | goto store_logical_result; |
551 | } | |
552 | ||
1da177e4 | 553 | switch (walk_state->opcode) { |
4be44fcd | 554 | case AML_ACQUIRE_OP: /* Acquire (mutex_object, Timeout) */ |
1da177e4 | 555 | |
4be44fcd LB |
556 | status = |
557 | acpi_ex_acquire_mutex(operand[1], operand[0], walk_state); | |
1da177e4 | 558 | if (status == AE_TIME) { |
4be44fcd | 559 | logical_result = TRUE; /* TRUE = Acquire timed out */ |
1da177e4 LT |
560 | status = AE_OK; |
561 | } | |
562 | break; | |
563 | ||
4be44fcd | 564 | case AML_WAIT_OP: /* Wait (event_object, Timeout) */ |
1da177e4 | 565 | |
4be44fcd | 566 | status = acpi_ex_system_wait_event(operand[1], operand[0]); |
1da177e4 | 567 | if (status == AE_TIME) { |
4be44fcd | 568 | logical_result = TRUE; /* TRUE, Wait timed out */ |
1da177e4 LT |
569 | status = AE_OK; |
570 | } | |
571 | break; | |
572 | ||
1da177e4 LT |
573 | default: |
574 | ||
b8e4d893 BM |
575 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
576 | walk_state->opcode)); | |
1da177e4 LT |
577 | status = AE_AML_BAD_OPCODE; |
578 | goto cleanup; | |
579 | } | |
580 | ||
4be44fcd | 581 | store_logical_result: |
1da177e4 LT |
582 | /* |
583 | * Set return value to according to logical_result. logical TRUE (all ones) | |
584 | * Default is FALSE (zero) | |
585 | */ | |
586 | if (logical_result) { | |
587 | return_desc->integer.value = ACPI_INTEGER_MAX; | |
588 | } | |
589 | ||
4be44fcd | 590 | cleanup: |
1da177e4 LT |
591 | |
592 | /* Delete return object on error */ | |
593 | ||
4be44fcd LB |
594 | if (ACPI_FAILURE(status)) { |
595 | acpi_ut_remove_reference(return_desc); | |
1da177e4 LT |
596 | } |
597 | ||
4b6e16cf BM |
598 | /* Save return object on success */ |
599 | ||
600 | else { | |
601 | walk_state->result_obj = return_desc; | |
602 | } | |
603 | ||
4be44fcd | 604 | return_ACPI_STATUS(status); |
1da177e4 | 605 | } |