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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: dswexec - Dispatcher method execution callbacks; | |
4 | * dispatch to interpreter. | |
5 | * | |
6 | *****************************************************************************/ | |
7 | ||
8 | /* | |
9 | * Copyright (C) 2000 - 2005, R. Byron Moore | |
10 | * All rights reserved. | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or without | |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * 1. Redistributions of source code must retain the above copyright | |
16 | * notice, this list of conditions, and the following disclaimer, | |
17 | * without modification. | |
18 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
19 | * substantially similar to the "NO WARRANTY" disclaimer below | |
20 | * ("Disclaimer") and any redistribution must be conditioned upon | |
21 | * including a substantially similar Disclaimer requirement for further | |
22 | * binary redistribution. | |
23 | * 3. Neither the names of the above-listed copyright holders nor the names | |
24 | * of any contributors may be used to endorse or promote products derived | |
25 | * from this software without specific prior written permission. | |
26 | * | |
27 | * Alternatively, this software may be distributed under the terms of the | |
28 | * GNU General Public License ("GPL") version 2 as published by the Free | |
29 | * Software Foundation. | |
30 | * | |
31 | * NO WARRANTY | |
32 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
33 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
34 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
35 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
36 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
37 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
38 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
39 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
40 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
41 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
42 | * POSSIBILITY OF SUCH DAMAGES. | |
43 | */ | |
44 | ||
45 | ||
46 | #include <acpi/acpi.h> | |
47 | #include <acpi/acparser.h> | |
48 | #include <acpi/amlcode.h> | |
49 | #include <acpi/acdispat.h> | |
50 | #include <acpi/acinterp.h> | |
51 | #include <acpi/acnamesp.h> | |
52 | #include <acpi/acdebug.h> | |
53 | #include <acpi/acdisasm.h> | |
54 | ||
55 | ||
56 | #define _COMPONENT ACPI_DISPATCHER | |
57 | ACPI_MODULE_NAME ("dswexec") | |
58 | ||
59 | /* | |
60 | * Dispatch table for opcode classes | |
61 | */ | |
62 | static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch [] = { | |
63 | acpi_ex_opcode_0A_0T_1R, | |
64 | acpi_ex_opcode_1A_0T_0R, | |
65 | acpi_ex_opcode_1A_0T_1R, | |
66 | acpi_ex_opcode_1A_1T_0R, | |
67 | acpi_ex_opcode_1A_1T_1R, | |
68 | acpi_ex_opcode_2A_0T_0R, | |
69 | acpi_ex_opcode_2A_0T_1R, | |
70 | acpi_ex_opcode_2A_1T_1R, | |
71 | acpi_ex_opcode_2A_2T_1R, | |
72 | acpi_ex_opcode_3A_0T_0R, | |
73 | acpi_ex_opcode_3A_1T_1R, | |
74 | acpi_ex_opcode_6A_0T_1R}; | |
75 | ||
44f6c012 | 76 | |
1da177e4 LT |
77 | /***************************************************************************** |
78 | * | |
79 | * FUNCTION: acpi_ds_get_predicate_value | |
80 | * | |
81 | * PARAMETERS: walk_state - Current state of the parse tree walk | |
44f6c012 | 82 | * result_obj - if non-zero, pop result from result stack |
1da177e4 LT |
83 | * |
84 | * RETURN: Status | |
85 | * | |
86 | * DESCRIPTION: Get the result of a predicate evaluation | |
87 | * | |
88 | ****************************************************************************/ | |
89 | ||
90 | acpi_status | |
91 | acpi_ds_get_predicate_value ( | |
92 | struct acpi_walk_state *walk_state, | |
93 | union acpi_operand_object *result_obj) { | |
94 | acpi_status status = AE_OK; | |
95 | union acpi_operand_object *obj_desc; | |
96 | union acpi_operand_object *local_obj_desc = NULL; | |
97 | ||
98 | ||
99 | ACPI_FUNCTION_TRACE_PTR ("ds_get_predicate_value", walk_state); | |
100 | ||
101 | ||
102 | walk_state->control_state->common.state = 0; | |
103 | ||
104 | if (result_obj) { | |
105 | status = acpi_ds_result_pop (&obj_desc, walk_state); | |
106 | if (ACPI_FAILURE (status)) { | |
107 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, | |
108 | "Could not get result from predicate evaluation, %s\n", | |
109 | acpi_format_exception (status))); | |
110 | ||
111 | return_ACPI_STATUS (status); | |
112 | } | |
113 | } | |
114 | else { | |
115 | status = acpi_ds_create_operand (walk_state, walk_state->op, 0); | |
116 | if (ACPI_FAILURE (status)) { | |
117 | return_ACPI_STATUS (status); | |
118 | } | |
119 | ||
120 | status = acpi_ex_resolve_to_value (&walk_state->operands [0], walk_state); | |
121 | if (ACPI_FAILURE (status)) { | |
122 | return_ACPI_STATUS (status); | |
123 | } | |
124 | ||
125 | obj_desc = walk_state->operands [0]; | |
126 | } | |
127 | ||
128 | if (!obj_desc) { | |
44f6c012 RM |
129 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, |
130 | "No predicate obj_desc=%p State=%p\n", | |
1da177e4 LT |
131 | obj_desc, walk_state)); |
132 | ||
133 | return_ACPI_STATUS (AE_AML_NO_OPERAND); | |
134 | } | |
135 | ||
136 | /* | |
137 | * Result of predicate evaluation must be an Integer | |
138 | * object. Implicitly convert the argument if necessary. | |
139 | */ | |
140 | status = acpi_ex_convert_to_integer (obj_desc, &local_obj_desc, 16); | |
141 | if (ACPI_FAILURE (status)) { | |
142 | goto cleanup; | |
143 | } | |
144 | ||
145 | if (ACPI_GET_OBJECT_TYPE (local_obj_desc) != ACPI_TYPE_INTEGER) { | |
146 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, | |
147 | "Bad predicate (not an integer) obj_desc=%p State=%p Type=%X\n", | |
148 | obj_desc, walk_state, ACPI_GET_OBJECT_TYPE (obj_desc))); | |
149 | ||
150 | status = AE_AML_OPERAND_TYPE; | |
151 | goto cleanup; | |
152 | } | |
153 | ||
154 | /* Truncate the predicate to 32-bits if necessary */ | |
155 | ||
156 | acpi_ex_truncate_for32bit_table (local_obj_desc); | |
157 | ||
158 | /* | |
159 | * Save the result of the predicate evaluation on | |
160 | * the control stack | |
161 | */ | |
162 | if (local_obj_desc->integer.value) { | |
163 | walk_state->control_state->common.value = TRUE; | |
164 | } | |
165 | else { | |
166 | /* | |
167 | * Predicate is FALSE, we will just toss the | |
168 | * rest of the package | |
169 | */ | |
170 | walk_state->control_state->common.value = FALSE; | |
171 | status = AE_CTRL_FALSE; | |
172 | } | |
173 | ||
174 | ||
175 | cleanup: | |
176 | ||
177 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n", | |
178 | walk_state->control_state->common.value, walk_state->op)); | |
179 | ||
180 | /* Break to debugger to display result */ | |
181 | ||
182 | ACPI_DEBUGGER_EXEC (acpi_db_display_result_object (local_obj_desc, walk_state)); | |
183 | ||
184 | /* | |
185 | * Delete the predicate result object (we know that | |
186 | * we don't need it anymore) | |
187 | */ | |
188 | if (local_obj_desc != obj_desc) { | |
189 | acpi_ut_remove_reference (local_obj_desc); | |
190 | } | |
191 | acpi_ut_remove_reference (obj_desc); | |
192 | ||
193 | walk_state->control_state->common.state = ACPI_CONTROL_NORMAL; | |
194 | return_ACPI_STATUS (status); | |
195 | } | |
196 | ||
197 | ||
198 | /***************************************************************************** | |
199 | * | |
200 | * FUNCTION: acpi_ds_exec_begin_op | |
201 | * | |
202 | * PARAMETERS: walk_state - Current state of the parse tree walk | |
44f6c012 | 203 | * out_op - Where to return op if a new one is created |
1da177e4 LT |
204 | * |
205 | * RETURN: Status | |
206 | * | |
207 | * DESCRIPTION: Descending callback used during the execution of control | |
208 | * methods. This is where most operators and operands are | |
209 | * dispatched to the interpreter. | |
210 | * | |
211 | ****************************************************************************/ | |
212 | ||
213 | acpi_status | |
214 | acpi_ds_exec_begin_op ( | |
215 | struct acpi_walk_state *walk_state, | |
216 | union acpi_parse_object **out_op) | |
217 | { | |
218 | union acpi_parse_object *op; | |
219 | acpi_status status = AE_OK; | |
220 | u32 opcode_class; | |
221 | ||
222 | ||
223 | ACPI_FUNCTION_TRACE_PTR ("ds_exec_begin_op", walk_state); | |
224 | ||
225 | ||
226 | op = walk_state->op; | |
227 | if (!op) { | |
228 | status = acpi_ds_load2_begin_op (walk_state, out_op); | |
229 | if (ACPI_FAILURE (status)) { | |
230 | return_ACPI_STATUS (status); | |
231 | } | |
232 | ||
233 | op = *out_op; | |
234 | walk_state->op = op; | |
235 | walk_state->opcode = op->common.aml_opcode; | |
236 | walk_state->op_info = acpi_ps_get_opcode_info (op->common.aml_opcode); | |
237 | ||
238 | if (acpi_ns_opens_scope (walk_state->op_info->object_type)) { | |
44f6c012 RM |
239 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
240 | "(%s) Popping scope for Op %p\n", | |
1da177e4 LT |
241 | acpi_ut_get_type_name (walk_state->op_info->object_type), op)); |
242 | ||
243 | status = acpi_ds_scope_stack_pop (walk_state); | |
244 | if (ACPI_FAILURE (status)) { | |
245 | return_ACPI_STATUS (status); | |
246 | } | |
247 | } | |
248 | } | |
249 | ||
250 | if (op == walk_state->origin) { | |
251 | if (out_op) { | |
252 | *out_op = op; | |
253 | } | |
254 | ||
255 | return_ACPI_STATUS (AE_OK); | |
256 | } | |
257 | ||
258 | /* | |
259 | * If the previous opcode was a conditional, this opcode | |
260 | * must be the beginning of the associated predicate. | |
261 | * Save this knowledge in the current scope descriptor | |
262 | */ | |
263 | if ((walk_state->control_state) && | |
264 | (walk_state->control_state->common.state == | |
265 | ACPI_CONTROL_CONDITIONAL_EXECUTING)) { | |
266 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Exec predicate Op=%p State=%p\n", | |
267 | op, walk_state)); | |
268 | ||
269 | walk_state->control_state->common.state = ACPI_CONTROL_PREDICATE_EXECUTING; | |
270 | ||
271 | /* Save start of predicate */ | |
272 | ||
273 | walk_state->control_state->control.predicate_op = op; | |
274 | } | |
275 | ||
276 | ||
277 | opcode_class = walk_state->op_info->class; | |
278 | ||
279 | /* We want to send namepaths to the load code */ | |
280 | ||
281 | if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { | |
282 | opcode_class = AML_CLASS_NAMED_OBJECT; | |
283 | } | |
284 | ||
285 | /* | |
286 | * Handle the opcode based upon the opcode type | |
287 | */ | |
288 | switch (opcode_class) { | |
289 | case AML_CLASS_CONTROL: | |
290 | ||
291 | status = acpi_ds_result_stack_push (walk_state); | |
292 | if (ACPI_FAILURE (status)) { | |
293 | return_ACPI_STATUS (status); | |
294 | } | |
295 | ||
296 | status = acpi_ds_exec_begin_control_op (walk_state, op); | |
297 | break; | |
298 | ||
299 | ||
300 | case AML_CLASS_NAMED_OBJECT: | |
301 | ||
302 | if (walk_state->walk_type == ACPI_WALK_METHOD) { | |
303 | /* | |
44f6c012 RM |
304 | * Found a named object declaration during method execution; |
305 | * we must enter this object into the namespace. The created | |
306 | * object is temporary and will be deleted upon completion of | |
307 | * the execution of this method. | |
1da177e4 LT |
308 | */ |
309 | status = acpi_ds_load2_begin_op (walk_state, NULL); | |
310 | } | |
311 | ||
312 | if (op->common.aml_opcode == AML_REGION_OP) { | |
313 | status = acpi_ds_result_stack_push (walk_state); | |
314 | } | |
315 | break; | |
316 | ||
317 | ||
318 | case AML_CLASS_EXECUTE: | |
319 | case AML_CLASS_CREATE: | |
320 | ||
321 | /* | |
322 | * Most operators with arguments. | |
323 | * Start a new result/operand state | |
324 | */ | |
325 | status = acpi_ds_result_stack_push (walk_state); | |
326 | break; | |
327 | ||
328 | ||
329 | default: | |
330 | break; | |
331 | } | |
332 | ||
333 | /* Nothing to do here during method execution */ | |
334 | ||
335 | return_ACPI_STATUS (status); | |
336 | } | |
337 | ||
338 | ||
339 | /***************************************************************************** | |
340 | * | |
341 | * FUNCTION: acpi_ds_exec_end_op | |
342 | * | |
343 | * PARAMETERS: walk_state - Current state of the parse tree walk | |
1da177e4 LT |
344 | * |
345 | * RETURN: Status | |
346 | * | |
347 | * DESCRIPTION: Ascending callback used during the execution of control | |
348 | * methods. The only thing we really need to do here is to | |
349 | * notice the beginning of IF, ELSE, and WHILE blocks. | |
350 | * | |
351 | ****************************************************************************/ | |
352 | ||
353 | acpi_status | |
354 | acpi_ds_exec_end_op ( | |
355 | struct acpi_walk_state *walk_state) | |
356 | { | |
357 | union acpi_parse_object *op; | |
358 | acpi_status status = AE_OK; | |
359 | u32 op_type; | |
360 | u32 op_class; | |
361 | union acpi_parse_object *next_op; | |
362 | union acpi_parse_object *first_arg; | |
363 | ||
364 | ||
365 | ACPI_FUNCTION_TRACE_PTR ("ds_exec_end_op", walk_state); | |
366 | ||
367 | ||
368 | op = walk_state->op; | |
369 | op_type = walk_state->op_info->type; | |
370 | op_class = walk_state->op_info->class; | |
371 | ||
372 | if (op_class == AML_CLASS_UNKNOWN) { | |
373 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown opcode %X\n", op->common.aml_opcode)); | |
374 | return_ACPI_STATUS (AE_NOT_IMPLEMENTED); | |
375 | } | |
376 | ||
377 | first_arg = op->common.value.arg; | |
378 | ||
379 | /* Init the walk state */ | |
380 | ||
381 | walk_state->num_operands = 0; | |
382 | walk_state->return_desc = NULL; | |
383 | walk_state->result_obj = NULL; | |
384 | ||
385 | /* Call debugger for single step support (DEBUG build only) */ | |
386 | ||
387 | ACPI_DEBUGGER_EXEC (status = acpi_db_single_step (walk_state, op, op_class)); | |
388 | ACPI_DEBUGGER_EXEC (if (ACPI_FAILURE (status)) {return_ACPI_STATUS (status);}); | |
389 | ||
390 | /* Decode the Opcode Class */ | |
391 | ||
392 | switch (op_class) { | |
44f6c012 | 393 | case AML_CLASS_ARGUMENT: /* constants, literals, etc. - do nothing */ |
1da177e4 LT |
394 | break; |
395 | ||
396 | ||
397 | case AML_CLASS_EXECUTE: /* most operators with arguments */ | |
398 | ||
399 | /* Build resolved operand stack */ | |
400 | ||
401 | status = acpi_ds_create_operands (walk_state, first_arg); | |
402 | if (ACPI_FAILURE (status)) { | |
403 | goto cleanup; | |
404 | } | |
405 | ||
406 | /* Done with this result state (Now that operand stack is built) */ | |
407 | ||
408 | status = acpi_ds_result_stack_pop (walk_state); | |
409 | if (ACPI_FAILURE (status)) { | |
410 | goto cleanup; | |
411 | } | |
412 | ||
413 | /* | |
414 | * All opcodes require operand resolution, with the only exceptions | |
415 | * being the object_type and size_of operators. | |
416 | */ | |
417 | if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) { | |
418 | /* Resolve all operands */ | |
419 | ||
420 | status = acpi_ex_resolve_operands (walk_state->opcode, | |
44f6c012 RM |
421 | &(walk_state->operands [walk_state->num_operands -1]), |
422 | walk_state); | |
1da177e4 LT |
423 | if (ACPI_SUCCESS (status)) { |
424 | ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE, | |
44f6c012 RM |
425 | acpi_ps_get_opcode_name (walk_state->opcode), |
426 | walk_state->num_operands, "after ex_resolve_operands"); | |
1da177e4 LT |
427 | } |
428 | } | |
429 | ||
430 | if (ACPI_SUCCESS (status)) { | |
431 | /* | |
432 | * Dispatch the request to the appropriate interpreter handler | |
433 | * routine. There is one routine per opcode "type" based upon the | |
434 | * number of opcode arguments and return type. | |
435 | */ | |
436 | status = acpi_gbl_op_type_dispatch[op_type] (walk_state); | |
437 | } | |
438 | else { | |
439 | /* | |
440 | * Treat constructs of the form "Store(local_x,local_x)" as noops when the | |
441 | * Local is uninitialized. | |
442 | */ | |
443 | if ((status == AE_AML_UNINITIALIZED_LOCAL) && | |
444 | (walk_state->opcode == AML_STORE_OP) && | |
445 | (walk_state->operands[0]->common.type == ACPI_TYPE_LOCAL_REFERENCE) && | |
446 | (walk_state->operands[1]->common.type == ACPI_TYPE_LOCAL_REFERENCE) && | |
447 | (walk_state->operands[0]->reference.opcode == | |
448 | walk_state->operands[1]->reference.opcode) && | |
449 | (walk_state->operands[0]->reference.offset == | |
450 | walk_state->operands[1]->reference.offset)) { | |
451 | status = AE_OK; | |
452 | } | |
453 | else { | |
454 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, | |
455 | "[%s]: Could not resolve operands, %s\n", | |
456 | acpi_ps_get_opcode_name (walk_state->opcode), | |
457 | acpi_format_exception (status))); | |
458 | } | |
459 | } | |
460 | ||
461 | /* Always delete the argument objects and clear the operand stack */ | |
462 | ||
463 | acpi_ds_clear_operands (walk_state); | |
464 | ||
465 | /* | |
466 | * If a result object was returned from above, push it on the | |
467 | * current result stack | |
468 | */ | |
469 | if (ACPI_SUCCESS (status) && | |
470 | walk_state->result_obj) { | |
471 | status = acpi_ds_result_push (walk_state->result_obj, walk_state); | |
472 | } | |
473 | ||
474 | break; | |
475 | ||
476 | ||
477 | default: | |
478 | ||
479 | switch (op_type) { | |
480 | case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ | |
481 | ||
482 | /* 1 Operand, 0 external_result, 0 internal_result */ | |
483 | ||
484 | status = acpi_ds_exec_end_control_op (walk_state, op); | |
485 | ||
486 | /* Make sure to properly pop the result stack */ | |
487 | ||
488 | if (ACPI_SUCCESS (status)) { | |
489 | status = acpi_ds_result_stack_pop (walk_state); | |
490 | } | |
491 | else if (status == AE_CTRL_PENDING) { | |
492 | status = acpi_ds_result_stack_pop (walk_state); | |
493 | if (ACPI_SUCCESS (status)) { | |
494 | status = AE_CTRL_PENDING; | |
495 | } | |
496 | } | |
497 | break; | |
498 | ||
499 | ||
500 | case AML_TYPE_METHOD_CALL: | |
501 | ||
502 | /* | |
503 | * If the method is referenced from within a package | |
504 | * declaration, it is not a invocation of the method, just | |
505 | * a reference to it. | |
506 | */ | |
507 | if ((op->asl.parent) && | |
508 | ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP) || | |
509 | (op->asl.parent->asl.aml_opcode == AML_VAR_PACKAGE_OP))) { | |
44f6c012 RM |
510 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
511 | "Method Reference in a Package, Op=%p\n", op)); | |
1da177e4 LT |
512 | op->common.node = (struct acpi_namespace_node *) op->asl.value.arg->asl.node->object; |
513 | acpi_ut_add_reference (op->asl.value.arg->asl.node->object); | |
514 | return_ACPI_STATUS (AE_OK); | |
515 | } | |
516 | ||
517 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Method invocation, Op=%p\n", op)); | |
518 | ||
519 | /* | |
520 | * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains | |
521 | * the method Node pointer | |
522 | */ | |
523 | /* next_op points to the op that holds the method name */ | |
524 | ||
525 | next_op = first_arg; | |
526 | ||
527 | /* next_op points to first argument op */ | |
528 | ||
529 | next_op = next_op->common.next; | |
530 | ||
531 | /* | |
532 | * Get the method's arguments and put them on the operand stack | |
533 | */ | |
534 | status = acpi_ds_create_operands (walk_state, next_op); | |
535 | if (ACPI_FAILURE (status)) { | |
536 | break; | |
537 | } | |
538 | ||
539 | /* | |
540 | * Since the operands will be passed to another control method, | |
541 | * we must resolve all local references here (Local variables, | |
542 | * arguments to *this* method, etc.) | |
543 | */ | |
544 | status = acpi_ds_resolve_operands (walk_state); | |
545 | if (ACPI_FAILURE (status)) { | |
546 | /* On error, clear all resolved operands */ | |
547 | ||
548 | acpi_ds_clear_operands (walk_state); | |
549 | break; | |
550 | } | |
551 | ||
552 | /* | |
553 | * Tell the walk loop to preempt this running method and | |
554 | * execute the new method | |
555 | */ | |
556 | status = AE_CTRL_TRANSFER; | |
557 | ||
558 | /* | |
559 | * Return now; we don't want to disturb anything, | |
560 | * especially the operand count! | |
561 | */ | |
562 | return_ACPI_STATUS (status); | |
563 | ||
564 | ||
565 | case AML_TYPE_CREATE_FIELD: | |
566 | ||
567 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, | |
568 | "Executing create_field Buffer/Index Op=%p\n", op)); | |
569 | ||
570 | status = acpi_ds_load2_end_op (walk_state); | |
571 | if (ACPI_FAILURE (status)) { | |
572 | break; | |
573 | } | |
574 | ||
575 | status = acpi_ds_eval_buffer_field_operands (walk_state, op); | |
576 | break; | |
577 | ||
578 | ||
579 | case AML_TYPE_CREATE_OBJECT: | |
580 | ||
581 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, | |
582 | "Executing create_object (Buffer/Package) Op=%p\n", op)); | |
583 | ||
584 | switch (op->common.parent->common.aml_opcode) { | |
585 | case AML_NAME_OP: | |
586 | ||
587 | /* | |
44f6c012 RM |
588 | * Put the Node on the object stack (Contains the ACPI Name |
589 | * of this object) | |
1da177e4 LT |
590 | */ |
591 | walk_state->operands[0] = (void *) op->common.parent->common.node; | |
592 | walk_state->num_operands = 1; | |
593 | ||
44f6c012 RM |
594 | status = acpi_ds_create_node (walk_state, |
595 | op->common.parent->common.node, | |
596 | op->common.parent); | |
1da177e4 LT |
597 | if (ACPI_FAILURE (status)) { |
598 | break; | |
599 | } | |
600 | ||
601 | /* Fall through */ | |
602 | /*lint -fallthrough */ | |
603 | ||
604 | case AML_INT_EVAL_SUBTREE_OP: | |
605 | ||
606 | status = acpi_ds_eval_data_object_operands (walk_state, op, | |
44f6c012 | 607 | acpi_ns_get_attached_object (op->common.parent->common.node)); |
1da177e4 LT |
608 | break; |
609 | ||
610 | default: | |
611 | ||
612 | status = acpi_ds_eval_data_object_operands (walk_state, op, NULL); | |
613 | break; | |
614 | } | |
615 | ||
44f6c012 | 616 | /* Done with result state (Now that operand stack is built) */ |
1da177e4 LT |
617 | |
618 | status = acpi_ds_result_stack_pop (walk_state); | |
619 | if (ACPI_FAILURE (status)) { | |
620 | goto cleanup; | |
621 | } | |
622 | ||
623 | /* | |
624 | * If a result object was returned from above, push it on the | |
625 | * current result stack | |
626 | */ | |
44f6c012 | 627 | if (walk_state->result_obj) { |
1da177e4 LT |
628 | status = acpi_ds_result_push (walk_state->result_obj, walk_state); |
629 | } | |
630 | break; | |
631 | ||
632 | ||
633 | case AML_TYPE_NAMED_FIELD: | |
634 | case AML_TYPE_NAMED_COMPLEX: | |
635 | case AML_TYPE_NAMED_SIMPLE: | |
636 | case AML_TYPE_NAMED_NO_OBJ: | |
637 | ||
638 | status = acpi_ds_load2_end_op (walk_state); | |
639 | if (ACPI_FAILURE (status)) { | |
640 | break; | |
641 | } | |
642 | ||
643 | if (op->common.aml_opcode == AML_REGION_OP) { | |
644 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, | |
645 | "Executing op_region Address/Length Op=%p\n", op)); | |
646 | ||
647 | status = acpi_ds_eval_region_operands (walk_state, op); | |
648 | if (ACPI_FAILURE (status)) { | |
649 | break; | |
650 | } | |
651 | ||
652 | status = acpi_ds_result_stack_pop (walk_state); | |
653 | } | |
654 | ||
655 | break; | |
656 | ||
657 | ||
658 | case AML_TYPE_UNDEFINED: | |
659 | ||
44f6c012 RM |
660 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, |
661 | "Undefined opcode type Op=%p\n", op)); | |
1da177e4 LT |
662 | return_ACPI_STATUS (AE_NOT_IMPLEMENTED); |
663 | ||
664 | ||
665 | case AML_TYPE_BOGUS: | |
666 | ||
667 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, | |
668 | "Internal opcode=%X type Op=%p\n", | |
669 | walk_state->opcode, op)); | |
670 | break; | |
671 | ||
672 | ||
673 | default: | |
674 | ||
675 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, | |
676 | "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p\n", | |
677 | op_class, op_type, op->common.aml_opcode, op)); | |
678 | ||
679 | status = AE_NOT_IMPLEMENTED; | |
680 | break; | |
681 | } | |
682 | } | |
683 | ||
684 | /* | |
685 | * ACPI 2.0 support for 64-bit integers: Truncate numeric | |
686 | * result value if we are executing from a 32-bit ACPI table | |
687 | */ | |
688 | acpi_ex_truncate_for32bit_table (walk_state->result_obj); | |
689 | ||
690 | /* | |
691 | * Check if we just completed the evaluation of a | |
692 | * conditional predicate | |
693 | */ | |
694 | ||
695 | if ((ACPI_SUCCESS (status)) && | |
696 | (walk_state->control_state) && | |
697 | (walk_state->control_state->common.state == | |
698 | ACPI_CONTROL_PREDICATE_EXECUTING) && | |
699 | (walk_state->control_state->control.predicate_op == op)) { | |
700 | status = acpi_ds_get_predicate_value (walk_state, walk_state->result_obj); | |
701 | walk_state->result_obj = NULL; | |
702 | } | |
703 | ||
704 | ||
705 | cleanup: | |
706 | ||
707 | /* Invoke exception handler on error */ | |
708 | ||
709 | if (ACPI_FAILURE (status) && | |
710 | acpi_gbl_exception_handler && | |
711 | !(status & AE_CODE_CONTROL)) { | |
712 | acpi_ex_exit_interpreter (); | |
713 | status = acpi_gbl_exception_handler (status, | |
714 | walk_state->method_node->name.integer, walk_state->opcode, | |
715 | walk_state->aml_offset, NULL); | |
44f6c012 | 716 | (void) acpi_ex_enter_interpreter (); |
1da177e4 LT |
717 | } |
718 | ||
719 | if (walk_state->result_obj) { | |
720 | /* Break to debugger to display result */ | |
721 | ||
44f6c012 RM |
722 | ACPI_DEBUGGER_EXEC (acpi_db_display_result_object (walk_state->result_obj, |
723 | walk_state)); | |
1da177e4 LT |
724 | |
725 | /* | |
726 | * Delete the result op if and only if: | |
727 | * Parent will not use the result -- such as any | |
728 | * non-nested type2 op in a method (parent will be method) | |
729 | */ | |
730 | acpi_ds_delete_result_if_not_used (op, walk_state->result_obj, walk_state); | |
731 | } | |
732 | ||
733 | #ifdef _UNDER_DEVELOPMENT | |
734 | ||
735 | if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) { | |
736 | acpi_db_method_end (walk_state); | |
737 | } | |
738 | #endif | |
739 | ||
740 | /* Always clear the object stack */ | |
741 | ||
742 | walk_state->num_operands = 0; | |
743 | ||
744 | #ifdef ACPI_DISASSEMBLER | |
745 | ||
746 | /* On error, display method locals/args */ | |
747 | ||
748 | if (ACPI_FAILURE (status)) { | |
749 | acpi_dm_dump_method_info (status, walk_state, op); | |
750 | } | |
751 | #endif | |
752 | ||
753 | return_ACPI_STATUS (status); | |
754 | } | |
755 | ||
756 |