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 | /* | |
c8100dc4 | 8 | * Copyright (C) 2000 - 2016, 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> |
e2f7a777 LB |
45 | #include "accommon.h" |
46 | #include "acparser.h" | |
47 | #include "acinterp.h" | |
48 | #include "acevents.h" | |
49 | #include "amlcode.h" | |
1da177e4 | 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 | |
123 | /* | |
124 | * Dispatch the notify to the appropriate handler | |
125 | * NOTE: the request is queued for execution after this method | |
73a3090a | 126 | * completes. The notify handlers are NOT invoked synchronously |
1da177e4 LT |
127 | * from this thread -- because handlers may in turn run other |
128 | * control methods. | |
129 | */ | |
4be44fcd | 130 | status = acpi_ev_queue_notify_request(node, value); |
1da177e4 LT |
131 | break; |
132 | ||
1da177e4 LT |
133 | default: |
134 | ||
f6a22b0b | 135 | ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", |
b8e4d893 | 136 | walk_state->opcode)); |
1da177e4 LT |
137 | status = AE_AML_BAD_OPCODE; |
138 | } | |
139 | ||
4be44fcd | 140 | return_ACPI_STATUS(status); |
1da177e4 LT |
141 | } |
142 | ||
1da177e4 LT |
143 | /******************************************************************************* |
144 | * | |
145 | * FUNCTION: acpi_ex_opcode_2A_2T_1R | |
146 | * | |
147 | * PARAMETERS: walk_state - Current walk state | |
148 | * | |
149 | * RETURN: Status | |
150 | * | |
151 | * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets | |
152 | * and one implicit return value. | |
153 | * | |
154 | ******************************************************************************/ | |
155 | ||
4be44fcd | 156 | acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 157 | { |
4be44fcd LB |
158 | union acpi_operand_object **operand = &walk_state->operands[0]; |
159 | union acpi_operand_object *return_desc1 = NULL; | |
160 | union acpi_operand_object *return_desc2 = NULL; | |
161 | acpi_status status; | |
1da177e4 | 162 | |
b229cf92 | 163 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R, |
4be44fcd | 164 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 | 165 | |
44f6c012 RM |
166 | /* Execute the opcode */ |
167 | ||
1da177e4 | 168 | switch (walk_state->opcode) { |
44f6c012 RM |
169 | case AML_DIVIDE_OP: |
170 | ||
171 | /* Divide (Dividend, Divisor, remainder_result quotient_result) */ | |
1da177e4 | 172 | |
4be44fcd LB |
173 | return_desc1 = |
174 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | |
1da177e4 LT |
175 | if (!return_desc1) { |
176 | status = AE_NO_MEMORY; | |
177 | goto cleanup; | |
178 | } | |
179 | ||
4be44fcd LB |
180 | return_desc2 = |
181 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | |
1da177e4 LT |
182 | if (!return_desc2) { |
183 | status = AE_NO_MEMORY; | |
184 | goto cleanup; | |
185 | } | |
186 | ||
187 | /* Quotient to return_desc1, remainder to return_desc2 */ | |
188 | ||
4be44fcd LB |
189 | status = acpi_ut_divide(operand[0]->integer.value, |
190 | operand[1]->integer.value, | |
191 | &return_desc1->integer.value, | |
192 | &return_desc2->integer.value); | |
193 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
194 | goto cleanup; |
195 | } | |
196 | break; | |
197 | ||
1da177e4 LT |
198 | default: |
199 | ||
f6a22b0b | 200 | ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", |
b8e4d893 | 201 | walk_state->opcode)); |
1fad8738 | 202 | |
1da177e4 LT |
203 | status = AE_AML_BAD_OPCODE; |
204 | goto cleanup; | |
205 | } | |
206 | ||
1da177e4 LT |
207 | /* Store the results to the target reference operands */ |
208 | ||
4be44fcd LB |
209 | status = acpi_ex_store(return_desc2, operand[2], walk_state); |
210 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
211 | goto cleanup; |
212 | } | |
213 | ||
4be44fcd LB |
214 | status = acpi_ex_store(return_desc1, operand[3], walk_state); |
215 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
216 | goto cleanup; |
217 | } | |
218 | ||
10622bf8 | 219 | cleanup: |
1da177e4 LT |
220 | /* |
221 | * Since the remainder is not returned indirectly, remove a reference to | |
222 | * it. Only the quotient is returned indirectly. | |
223 | */ | |
4be44fcd | 224 | acpi_ut_remove_reference(return_desc2); |
1da177e4 | 225 | |
4be44fcd | 226 | if (ACPI_FAILURE(status)) { |
52fc0b02 | 227 | |
1da177e4 LT |
228 | /* Delete the return object */ |
229 | ||
4be44fcd | 230 | acpi_ut_remove_reference(return_desc1); |
1da177e4 LT |
231 | } |
232 | ||
4b6e16cf BM |
233 | /* Save return object (the remainder) on success */ |
234 | ||
235 | else { | |
236 | walk_state->result_obj = return_desc1; | |
237 | } | |
238 | ||
4be44fcd | 239 | return_ACPI_STATUS(status); |
1da177e4 LT |
240 | } |
241 | ||
1da177e4 LT |
242 | /******************************************************************************* |
243 | * | |
244 | * FUNCTION: acpi_ex_opcode_2A_1T_1R | |
245 | * | |
246 | * PARAMETERS: walk_state - Current walk state | |
247 | * | |
248 | * RETURN: Status | |
249 | * | |
250 | * DESCRIPTION: Execute opcode with two arguments, one target, and a return | |
251 | * value. | |
252 | * | |
253 | ******************************************************************************/ | |
254 | ||
4be44fcd | 255 | acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 256 | { |
4be44fcd LB |
257 | union acpi_operand_object **operand = &walk_state->operands[0]; |
258 | union acpi_operand_object *return_desc = NULL; | |
5df7e6cb | 259 | u64 index; |
4be44fcd | 260 | acpi_status status = AE_OK; |
663b95f2 | 261 | acpi_size length = 0; |
1da177e4 | 262 | |
b229cf92 | 263 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R, |
4be44fcd | 264 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 | 265 | |
44f6c012 RM |
266 | /* Execute the opcode */ |
267 | ||
1da177e4 | 268 | if (walk_state->op_info->flags & AML_MATH) { |
52fc0b02 | 269 | |
1da177e4 LT |
270 | /* All simple math opcodes (add, etc.) */ |
271 | ||
4be44fcd | 272 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
273 | if (!return_desc) { |
274 | status = AE_NO_MEMORY; | |
275 | goto cleanup; | |
276 | } | |
277 | ||
4be44fcd LB |
278 | return_desc->integer.value = |
279 | acpi_ex_do_math_op(walk_state->opcode, | |
280 | operand[0]->integer.value, | |
281 | operand[1]->integer.value); | |
1da177e4 LT |
282 | goto store_result_to_target; |
283 | } | |
284 | ||
1da177e4 | 285 | switch (walk_state->opcode) { |
4be44fcd | 286 | case AML_MOD_OP: /* Mod (Dividend, Divisor, remainder_result (ACPI 2.0) */ |
1da177e4 | 287 | |
4be44fcd | 288 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
289 | if (!return_desc) { |
290 | status = AE_NO_MEMORY; | |
291 | goto cleanup; | |
292 | } | |
293 | ||
294 | /* return_desc will contain the remainder */ | |
295 | ||
4be44fcd LB |
296 | status = acpi_ut_divide(operand[0]->integer.value, |
297 | operand[1]->integer.value, | |
298 | NULL, &return_desc->integer.value); | |
1da177e4 LT |
299 | break; |
300 | ||
4be44fcd | 301 | case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */ |
1da177e4 | 302 | |
1fad8738 BM |
303 | status = |
304 | acpi_ex_do_concatenate(operand[0], operand[1], &return_desc, | |
305 | walk_state); | |
1da177e4 LT |
306 | break; |
307 | ||
4be44fcd | 308 | case AML_TO_STRING_OP: /* to_string (Buffer, Length, Result) (ACPI 2.0) */ |
1da177e4 LT |
309 | /* |
310 | * Input object is guaranteed to be a buffer at this point (it may have | |
44f6c012 RM |
311 | * been converted.) Copy the raw buffer data to a new object of |
312 | * type String. | |
1da177e4 LT |
313 | */ |
314 | ||
315 | /* | |
316 | * Get the length of the new string. It is the smallest of: | |
317 | * 1) Length of the input buffer | |
318 | * 2) Max length as specified in the to_string operator | |
319 | * 3) Length of input buffer up to a zero byte (null terminator) | |
320 | * | |
321 | * NOTE: A length of zero is ok, and will create a zero-length, null | |
322 | * terminated string. | |
323 | */ | |
1da177e4 | 324 | while ((length < operand[0]->buffer.length) && |
4be44fcd LB |
325 | (length < operand[1]->integer.value) && |
326 | (operand[0]->buffer.pointer[length])) { | |
1da177e4 | 327 | length++; |
1da177e4 LT |
328 | } |
329 | ||
330 | /* Allocate a new string object */ | |
331 | ||
4be44fcd | 332 | return_desc = acpi_ut_create_string_object(length); |
1da177e4 LT |
333 | if (!return_desc) { |
334 | status = AE_NO_MEMORY; | |
335 | goto cleanup; | |
336 | } | |
337 | ||
c51a4de8 BM |
338 | /* |
339 | * Copy the raw buffer data with no transform. | |
340 | * (NULL terminated already) | |
341 | */ | |
4fa4616e BM |
342 | memcpy(return_desc->string.pointer, |
343 | operand[0]->buffer.pointer, length); | |
1da177e4 LT |
344 | break; |
345 | ||
44f6c012 RM |
346 | case AML_CONCAT_RES_OP: |
347 | ||
348 | /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */ | |
1da177e4 | 349 | |
1fad8738 BM |
350 | status = |
351 | acpi_ex_concat_template(operand[0], operand[1], | |
352 | &return_desc, walk_state); | |
1da177e4 LT |
353 | break; |
354 | ||
4be44fcd | 355 | case AML_INDEX_OP: /* Index (Source Index Result) */ |
1da177e4 LT |
356 | |
357 | /* Create the internal return object */ | |
358 | ||
4be44fcd LB |
359 | return_desc = |
360 | acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); | |
1da177e4 LT |
361 | if (!return_desc) { |
362 | status = AE_NO_MEMORY; | |
363 | goto cleanup; | |
364 | } | |
365 | ||
52fc0b02 BM |
366 | /* Initialize the Index reference object */ |
367 | ||
44f6c012 | 368 | index = operand[1]->integer.value; |
1044f1f6 BM |
369 | return_desc->reference.value = (u32) index; |
370 | return_desc->reference.class = ACPI_REFCLASS_INDEX; | |
44f6c012 | 371 | |
52fc0b02 BM |
372 | /* |
373 | * At this point, the Source operand is a String, Buffer, or Package. | |
374 | * Verify that the index is within range. | |
375 | */ | |
3371c19c | 376 | switch ((operand[0])->common.type) { |
52fc0b02 | 377 | case ACPI_TYPE_STRING: |
1da177e4 | 378 | |
52fc0b02 | 379 | if (index >= operand[0]->string.length) { |
663b95f2 | 380 | length = operand[0]->string.length; |
52fc0b02 BM |
381 | status = AE_AML_STRING_LIMIT; |
382 | } | |
383 | ||
384 | return_desc->reference.target_type = | |
385 | ACPI_TYPE_BUFFER_FIELD; | |
fde175e3 BM |
386 | return_desc->reference.index_pointer = |
387 | &(operand[0]->buffer.pointer[index]); | |
52fc0b02 BM |
388 | break; |
389 | ||
390 | case ACPI_TYPE_BUFFER: | |
391 | ||
392 | if (index >= operand[0]->buffer.length) { | |
663b95f2 | 393 | length = operand[0]->buffer.length; |
52fc0b02 BM |
394 | status = AE_AML_BUFFER_LIMIT; |
395 | } | |
396 | ||
397 | return_desc->reference.target_type = | |
398 | ACPI_TYPE_BUFFER_FIELD; | |
fde175e3 BM |
399 | return_desc->reference.index_pointer = |
400 | &(operand[0]->buffer.pointer[index]); | |
52fc0b02 BM |
401 | break; |
402 | ||
403 | case ACPI_TYPE_PACKAGE: | |
1da177e4 LT |
404 | |
405 | if (index >= operand[0]->package.count) { | |
663b95f2 | 406 | length = operand[0]->package.count; |
1da177e4 | 407 | status = AE_AML_PACKAGE_LIMIT; |
1da177e4 LT |
408 | } |
409 | ||
410 | return_desc->reference.target_type = ACPI_TYPE_PACKAGE; | |
4be44fcd LB |
411 | return_desc->reference.where = |
412 | &operand[0]->package.elements[index]; | |
52fc0b02 | 413 | break; |
1da177e4 | 414 | |
52fc0b02 | 415 | default: |
1da177e4 | 416 | |
52fc0b02 BM |
417 | status = AE_AML_INTERNAL; |
418 | goto cleanup; | |
419 | } | |
420 | ||
421 | /* Failure means that the Index was beyond the end of the object */ | |
422 | ||
423 | if (ACPI_FAILURE(status)) { | |
424 | ACPI_EXCEPTION((AE_INFO, status, | |
663b95f2 | 425 | "Index (0x%X%8.8X) is beyond end of object (length 0x%X)", |
475df486 BM |
426 | ACPI_FORMAT_UINT64(index), |
427 | (u32)length)); | |
52fc0b02 | 428 | goto cleanup; |
1da177e4 LT |
429 | } |
430 | ||
431 | /* | |
8313524a | 432 | * Save the target object and add a reference to it for the life |
52fc0b02 | 433 | * of the index |
1da177e4 | 434 | */ |
8313524a | 435 | return_desc->reference.object = operand[0]; |
4be44fcd | 436 | acpi_ut_add_reference(operand[0]); |
1da177e4 | 437 | |
1da177e4 LT |
438 | /* Store the reference to the Target */ |
439 | ||
4be44fcd | 440 | status = acpi_ex_store(return_desc, operand[2], walk_state); |
1da177e4 LT |
441 | |
442 | /* Return the reference */ | |
443 | ||
444 | walk_state->result_obj = return_desc; | |
445 | goto cleanup; | |
446 | ||
1da177e4 LT |
447 | default: |
448 | ||
f6a22b0b | 449 | ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", |
b8e4d893 | 450 | walk_state->opcode)); |
1da177e4 LT |
451 | status = AE_AML_BAD_OPCODE; |
452 | break; | |
453 | } | |
454 | ||
10622bf8 | 455 | store_result_to_target: |
1da177e4 | 456 | |
4be44fcd | 457 | if (ACPI_SUCCESS(status)) { |
1da177e4 LT |
458 | /* |
459 | * Store the result of the operation (which is now in return_desc) into | |
460 | * the Target descriptor. | |
461 | */ | |
4be44fcd LB |
462 | status = acpi_ex_store(return_desc, operand[2], walk_state); |
463 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
464 | goto cleanup; |
465 | } | |
466 | ||
467 | if (!walk_state->result_obj) { | |
468 | walk_state->result_obj = return_desc; | |
469 | } | |
470 | } | |
471 | ||
10622bf8 | 472 | cleanup: |
1da177e4 LT |
473 | |
474 | /* Delete return object on error */ | |
475 | ||
4be44fcd LB |
476 | if (ACPI_FAILURE(status)) { |
477 | acpi_ut_remove_reference(return_desc); | |
4b6e16cf | 478 | walk_state->result_obj = NULL; |
1da177e4 LT |
479 | } |
480 | ||
4be44fcd | 481 | return_ACPI_STATUS(status); |
1da177e4 LT |
482 | } |
483 | ||
1da177e4 LT |
484 | /******************************************************************************* |
485 | * | |
486 | * FUNCTION: acpi_ex_opcode_2A_0T_1R | |
487 | * | |
488 | * PARAMETERS: walk_state - Current walk state | |
489 | * | |
490 | * RETURN: Status | |
491 | * | |
492 | * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value | |
493 | * | |
494 | ******************************************************************************/ | |
495 | ||
4be44fcd | 496 | acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 497 | { |
4be44fcd LB |
498 | union acpi_operand_object **operand = &walk_state->operands[0]; |
499 | union acpi_operand_object *return_desc = NULL; | |
500 | acpi_status status = AE_OK; | |
501 | u8 logical_result = FALSE; | |
1da177e4 | 502 | |
b229cf92 | 503 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R, |
4be44fcd | 504 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 LT |
505 | |
506 | /* Create the internal return object */ | |
507 | ||
4be44fcd | 508 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
509 | if (!return_desc) { |
510 | status = AE_NO_MEMORY; | |
511 | goto cleanup; | |
512 | } | |
513 | ||
44f6c012 RM |
514 | /* Execute the Opcode */ |
515 | ||
516 | if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) { | |
52fc0b02 | 517 | |
44f6c012 RM |
518 | /* logical_op (Operand0, Operand1) */ |
519 | ||
4be44fcd LB |
520 | status = acpi_ex_do_logical_numeric_op(walk_state->opcode, |
521 | operand[0]->integer. | |
522 | value, | |
523 | operand[1]->integer. | |
524 | value, &logical_result); | |
1da177e4 | 525 | goto store_logical_result; |
4be44fcd | 526 | } else if (walk_state->op_info->flags & AML_LOGICAL) { |
52fc0b02 | 527 | |
44f6c012 RM |
528 | /* logical_op (Operand0, Operand1) */ |
529 | ||
4be44fcd LB |
530 | status = acpi_ex_do_logical_op(walk_state->opcode, operand[0], |
531 | operand[1], &logical_result); | |
1da177e4 LT |
532 | goto store_logical_result; |
533 | } | |
534 | ||
1da177e4 | 535 | switch (walk_state->opcode) { |
4be44fcd | 536 | case AML_ACQUIRE_OP: /* Acquire (mutex_object, Timeout) */ |
1da177e4 | 537 | |
4be44fcd LB |
538 | status = |
539 | acpi_ex_acquire_mutex(operand[1], operand[0], walk_state); | |
1da177e4 | 540 | if (status == AE_TIME) { |
4be44fcd | 541 | logical_result = TRUE; /* TRUE = Acquire timed out */ |
1da177e4 LT |
542 | status = AE_OK; |
543 | } | |
544 | break; | |
545 | ||
4be44fcd | 546 | case AML_WAIT_OP: /* Wait (event_object, Timeout) */ |
1da177e4 | 547 | |
4be44fcd | 548 | status = acpi_ex_system_wait_event(operand[1], operand[0]); |
1da177e4 | 549 | if (status == AE_TIME) { |
4be44fcd | 550 | logical_result = TRUE; /* TRUE, Wait timed out */ |
1da177e4 LT |
551 | status = AE_OK; |
552 | } | |
553 | break; | |
554 | ||
1da177e4 LT |
555 | default: |
556 | ||
f6a22b0b | 557 | ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", |
b8e4d893 | 558 | walk_state->opcode)); |
1fad8738 | 559 | |
1da177e4 LT |
560 | status = AE_AML_BAD_OPCODE; |
561 | goto cleanup; | |
562 | } | |
563 | ||
10622bf8 | 564 | store_logical_result: |
1da177e4 LT |
565 | /* |
566 | * Set return value to according to logical_result. logical TRUE (all ones) | |
567 | * Default is FALSE (zero) | |
568 | */ | |
569 | if (logical_result) { | |
5df7e6cb | 570 | return_desc->integer.value = ACPI_UINT64_MAX; |
1da177e4 LT |
571 | } |
572 | ||
10622bf8 | 573 | cleanup: |
1da177e4 LT |
574 | |
575 | /* Delete return object on error */ | |
576 | ||
4be44fcd LB |
577 | if (ACPI_FAILURE(status)) { |
578 | acpi_ut_remove_reference(return_desc); | |
1da177e4 LT |
579 | } |
580 | ||
4b6e16cf BM |
581 | /* Save return object on success */ |
582 | ||
583 | else { | |
584 | walk_state->result_obj = return_desc; | |
585 | } | |
586 | ||
4be44fcd | 587 | return_ACPI_STATUS(status); |
1da177e4 | 588 | } |