Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
6595 | serge | 1 | /****************************************************************************** |
2 | * |
||
3 | * Module Name: exresop - AML Interpreter operand/object resolution |
||
4 | * |
||
5 | *****************************************************************************/ |
||
6 | |||
7 | /* |
||
8 | * Copyright (C) 2000 - 2015, Intel Corp. |
||
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 | |||
44 | #include |
||
45 | #include "accommon.h" |
||
46 | #include "amlcode.h" |
||
47 | #include "acparser.h" |
||
48 | #include "acinterp.h" |
||
49 | #include "acnamesp.h" |
||
50 | |||
51 | #define _COMPONENT ACPI_EXECUTER |
||
52 | ACPI_MODULE_NAME("exresop") |
||
53 | |||
54 | /* Local prototypes */ |
||
55 | static acpi_status |
||
56 | acpi_ex_check_object_type(acpi_object_type type_needed, |
||
57 | acpi_object_type this_type, void *object); |
||
58 | |||
59 | /******************************************************************************* |
||
60 | * |
||
61 | * FUNCTION: acpi_ex_check_object_type |
||
62 | * |
||
63 | * PARAMETERS: type_needed Object type needed |
||
64 | * this_type Actual object type |
||
65 | * Object Object pointer |
||
66 | * |
||
67 | * RETURN: Status |
||
68 | * |
||
69 | * DESCRIPTION: Check required type against actual type |
||
70 | * |
||
71 | ******************************************************************************/ |
||
72 | |||
73 | static acpi_status |
||
74 | acpi_ex_check_object_type(acpi_object_type type_needed, |
||
75 | acpi_object_type this_type, void *object) |
||
76 | { |
||
77 | ACPI_FUNCTION_ENTRY(); |
||
78 | |||
79 | if (type_needed == ACPI_TYPE_ANY) { |
||
80 | |||
81 | /* All types OK, so we don't perform any typechecks */ |
||
82 | |||
83 | return (AE_OK); |
||
84 | } |
||
85 | |||
86 | if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) { |
||
87 | /* |
||
88 | * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference |
||
89 | * objects and thus allow them to be targets. (As per the ACPI |
||
90 | * specification, a store to a constant is a noop.) |
||
91 | */ |
||
92 | if ((this_type == ACPI_TYPE_INTEGER) && |
||
93 | (((union acpi_operand_object *)object)->common. |
||
94 | flags & AOPOBJ_AML_CONSTANT)) { |
||
95 | return (AE_OK); |
||
96 | } |
||
97 | } |
||
98 | |||
99 | if (type_needed != this_type) { |
||
100 | ACPI_ERROR((AE_INFO, |
||
101 | "Needed type [%s], found [%s] %p", |
||
102 | acpi_ut_get_type_name(type_needed), |
||
103 | acpi_ut_get_type_name(this_type), object)); |
||
104 | |||
105 | return (AE_AML_OPERAND_TYPE); |
||
106 | } |
||
107 | |||
108 | return (AE_OK); |
||
109 | } |
||
110 | |||
111 | /******************************************************************************* |
||
112 | * |
||
113 | * FUNCTION: acpi_ex_resolve_operands |
||
114 | * |
||
115 | * PARAMETERS: opcode - Opcode being interpreted |
||
116 | * stack_ptr - Pointer to the operand stack to be |
||
117 | * resolved |
||
118 | * walk_state - Current state |
||
119 | * |
||
120 | * RETURN: Status |
||
121 | * |
||
122 | * DESCRIPTION: Convert multiple input operands to the types required by the |
||
123 | * target operator. |
||
124 | * |
||
125 | * Each 5-bit group in arg_types represents one required |
||
126 | * operand and indicates the required Type. The corresponding operand |
||
127 | * will be converted to the required type if possible, otherwise we |
||
128 | * abort with an exception. |
||
129 | * |
||
130 | ******************************************************************************/ |
||
131 | |||
132 | acpi_status |
||
133 | acpi_ex_resolve_operands(u16 opcode, |
||
134 | union acpi_operand_object ** stack_ptr, |
||
135 | struct acpi_walk_state * walk_state) |
||
136 | { |
||
137 | union acpi_operand_object *obj_desc; |
||
138 | acpi_status status = AE_OK; |
||
139 | u8 object_type; |
||
140 | u32 arg_types; |
||
141 | const struct acpi_opcode_info *op_info; |
||
142 | u32 this_arg_type; |
||
143 | acpi_object_type type_needed; |
||
144 | u16 target_op = 0; |
||
145 | |||
146 | ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode); |
||
147 | |||
148 | op_info = acpi_ps_get_opcode_info(opcode); |
||
149 | if (op_info->class == AML_CLASS_UNKNOWN) { |
||
150 | return_ACPI_STATUS(AE_AML_BAD_OPCODE); |
||
151 | } |
||
152 | |||
153 | arg_types = op_info->runtime_args; |
||
154 | if (arg_types == ARGI_INVALID_OPCODE) { |
||
155 | ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X", opcode)); |
||
156 | |||
157 | return_ACPI_STATUS(AE_AML_INTERNAL); |
||
158 | } |
||
159 | |||
160 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
||
161 | "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", |
||
162 | opcode, op_info->name, arg_types)); |
||
163 | |||
164 | /* |
||
165 | * Normal exit is with (arg_types == 0) at end of argument list. |
||
166 | * Function will return an exception from within the loop upon |
||
167 | * finding an entry which is not (or cannot be converted |
||
168 | * to) the required type; if stack underflows; or upon |
||
169 | * finding a NULL stack entry (which should not happen). |
||
170 | */ |
||
171 | while (GET_CURRENT_ARG_TYPE(arg_types)) { |
||
172 | if (!stack_ptr || !*stack_ptr) { |
||
173 | ACPI_ERROR((AE_INFO, "Null stack entry at %p", |
||
174 | stack_ptr)); |
||
175 | |||
176 | return_ACPI_STATUS(AE_AML_INTERNAL); |
||
177 | } |
||
178 | |||
179 | /* Extract useful items */ |
||
180 | |||
181 | obj_desc = *stack_ptr; |
||
182 | |||
183 | /* Decode the descriptor type */ |
||
184 | |||
185 | switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { |
||
186 | case ACPI_DESC_TYPE_NAMED: |
||
187 | |||
188 | /* Namespace Node */ |
||
189 | |||
190 | object_type = |
||
191 | ((struct acpi_namespace_node *)obj_desc)->type; |
||
192 | |||
193 | /* |
||
194 | * Resolve an alias object. The construction of these objects |
||
195 | * guarantees that there is only one level of alias indirection; |
||
196 | * thus, the attached object is always the aliased namespace node |
||
197 | */ |
||
198 | if (object_type == ACPI_TYPE_LOCAL_ALIAS) { |
||
199 | obj_desc = |
||
200 | acpi_ns_get_attached_object((struct |
||
201 | acpi_namespace_node |
||
202 | *)obj_desc); |
||
203 | *stack_ptr = obj_desc; |
||
204 | object_type = |
||
205 | ((struct acpi_namespace_node *)obj_desc)-> |
||
206 | type; |
||
207 | } |
||
208 | break; |
||
209 | |||
210 | case ACPI_DESC_TYPE_OPERAND: |
||
211 | |||
212 | /* ACPI internal object */ |
||
213 | |||
214 | object_type = obj_desc->common.type; |
||
215 | |||
216 | /* Check for bad acpi_object_type */ |
||
217 | |||
218 | if (!acpi_ut_valid_object_type(object_type)) { |
||
219 | ACPI_ERROR((AE_INFO, |
||
220 | "Bad operand object type [0x%X]", |
||
221 | object_type)); |
||
222 | |||
223 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
224 | } |
||
225 | |||
226 | if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) { |
||
227 | |||
228 | /* Validate the Reference */ |
||
229 | |||
230 | switch (obj_desc->reference.class) { |
||
231 | case ACPI_REFCLASS_DEBUG: |
||
232 | |||
233 | target_op = AML_DEBUG_OP; |
||
234 | |||
235 | /*lint -fallthrough */ |
||
236 | |||
237 | case ACPI_REFCLASS_ARG: |
||
238 | case ACPI_REFCLASS_LOCAL: |
||
239 | case ACPI_REFCLASS_INDEX: |
||
240 | case ACPI_REFCLASS_REFOF: |
||
241 | case ACPI_REFCLASS_TABLE: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */ |
||
242 | case ACPI_REFCLASS_NAME: /* Reference to a named object */ |
||
243 | |||
244 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
||
245 | "Operand is a Reference, Class [%s] %2.2X\n", |
||
246 | acpi_ut_get_reference_name |
||
247 | (obj_desc), |
||
248 | obj_desc->reference. |
||
249 | class)); |
||
250 | break; |
||
251 | |||
252 | default: |
||
253 | |||
254 | ACPI_ERROR((AE_INFO, |
||
255 | "Unknown Reference Class 0x%2.2X in %p", |
||
256 | obj_desc->reference.class, |
||
257 | obj_desc)); |
||
258 | |||
259 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
260 | } |
||
261 | } |
||
262 | break; |
||
263 | |||
264 | default: |
||
265 | |||
266 | /* Invalid descriptor */ |
||
267 | |||
268 | ACPI_ERROR((AE_INFO, "Invalid descriptor %p [%s]", |
||
269 | obj_desc, |
||
270 | acpi_ut_get_descriptor_name(obj_desc))); |
||
271 | |||
272 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
273 | } |
||
274 | |||
275 | /* Get one argument type, point to the next */ |
||
276 | |||
277 | this_arg_type = GET_CURRENT_ARG_TYPE(arg_types); |
||
278 | INCREMENT_ARG_LIST(arg_types); |
||
279 | |||
280 | /* |
||
281 | * Handle cases where the object does not need to be |
||
282 | * resolved to a value |
||
283 | */ |
||
284 | switch (this_arg_type) { |
||
285 | case ARGI_REF_OR_STRING: /* Can be a String or Reference */ |
||
286 | |||
287 | if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == |
||
288 | ACPI_DESC_TYPE_OPERAND) |
||
289 | && (obj_desc->common.type == ACPI_TYPE_STRING)) { |
||
290 | /* |
||
291 | * String found - the string references a named object and |
||
292 | * must be resolved to a node |
||
293 | */ |
||
294 | goto next_operand; |
||
295 | } |
||
296 | |||
297 | /* |
||
298 | * Else not a string - fall through to the normal Reference |
||
299 | * case below |
||
300 | */ |
||
301 | /*lint -fallthrough */ |
||
302 | |||
303 | case ARGI_REFERENCE: /* References: */ |
||
304 | case ARGI_INTEGER_REF: |
||
305 | case ARGI_OBJECT_REF: |
||
306 | case ARGI_DEVICE_REF: |
||
307 | case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ |
||
308 | case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ |
||
309 | case ARGI_SIMPLE_TARGET: /* Name, Local, or arg - no implicit conversion */ |
||
310 | case ARGI_STORE_TARGET: |
||
311 | |||
312 | /* |
||
313 | * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE |
||
314 | * A Namespace Node is OK as-is |
||
315 | */ |
||
316 | if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == |
||
317 | ACPI_DESC_TYPE_NAMED) { |
||
318 | goto next_operand; |
||
319 | } |
||
320 | |||
321 | status = |
||
322 | acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE, |
||
323 | object_type, obj_desc); |
||
324 | if (ACPI_FAILURE(status)) { |
||
325 | return_ACPI_STATUS(status); |
||
326 | } |
||
327 | goto next_operand; |
||
328 | |||
329 | case ARGI_DATAREFOBJ: /* Store operator only */ |
||
330 | /* |
||
331 | * We don't want to resolve index_op reference objects during |
||
332 | * a store because this would be an implicit de_ref_of operation. |
||
333 | * Instead, we just want to store the reference object. |
||
334 | * -- All others must be resolved below. |
||
335 | */ |
||
336 | if ((opcode == AML_STORE_OP) && |
||
337 | ((*stack_ptr)->common.type == |
||
338 | ACPI_TYPE_LOCAL_REFERENCE) |
||
339 | && ((*stack_ptr)->reference.class == |
||
340 | ACPI_REFCLASS_INDEX)) { |
||
341 | goto next_operand; |
||
342 | } |
||
343 | break; |
||
344 | |||
345 | default: |
||
346 | |||
347 | /* All cases covered above */ |
||
348 | |||
349 | break; |
||
350 | } |
||
351 | |||
352 | /* |
||
353 | * Resolve this object to a value |
||
354 | */ |
||
355 | status = acpi_ex_resolve_to_value(stack_ptr, walk_state); |
||
356 | if (ACPI_FAILURE(status)) { |
||
357 | return_ACPI_STATUS(status); |
||
358 | } |
||
359 | |||
360 | /* Get the resolved object */ |
||
361 | |||
362 | obj_desc = *stack_ptr; |
||
363 | |||
364 | /* |
||
365 | * Check the resulting object (value) type |
||
366 | */ |
||
367 | switch (this_arg_type) { |
||
368 | /* |
||
369 | * For the simple cases, only one type of resolved object |
||
370 | * is allowed |
||
371 | */ |
||
372 | case ARGI_MUTEX: |
||
373 | |||
374 | /* Need an operand of type ACPI_TYPE_MUTEX */ |
||
375 | |||
376 | type_needed = ACPI_TYPE_MUTEX; |
||
377 | break; |
||
378 | |||
379 | case ARGI_EVENT: |
||
380 | |||
381 | /* Need an operand of type ACPI_TYPE_EVENT */ |
||
382 | |||
383 | type_needed = ACPI_TYPE_EVENT; |
||
384 | break; |
||
385 | |||
386 | case ARGI_PACKAGE: /* Package */ |
||
387 | |||
388 | /* Need an operand of type ACPI_TYPE_PACKAGE */ |
||
389 | |||
390 | type_needed = ACPI_TYPE_PACKAGE; |
||
391 | break; |
||
392 | |||
393 | case ARGI_ANYTYPE: |
||
394 | |||
395 | /* Any operand type will do */ |
||
396 | |||
397 | type_needed = ACPI_TYPE_ANY; |
||
398 | break; |
||
399 | |||
400 | case ARGI_DDBHANDLE: |
||
401 | |||
402 | /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ |
||
403 | |||
404 | type_needed = ACPI_TYPE_LOCAL_REFERENCE; |
||
405 | break; |
||
406 | |||
407 | /* |
||
408 | * The more complex cases allow multiple resolved object types |
||
409 | */ |
||
410 | case ARGI_INTEGER: |
||
411 | |||
412 | /* |
||
413 | * Need an operand of type ACPI_TYPE_INTEGER, |
||
414 | * But we can implicitly convert from a STRING or BUFFER |
||
415 | * aka - "Implicit Source Operand Conversion" |
||
416 | */ |
||
417 | status = |
||
418 | acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16); |
||
419 | if (ACPI_FAILURE(status)) { |
||
420 | if (status == AE_TYPE) { |
||
421 | ACPI_ERROR((AE_INFO, |
||
422 | "Needed [Integer/String/Buffer], found [%s] %p", |
||
423 | acpi_ut_get_object_type_name |
||
424 | (obj_desc), obj_desc)); |
||
425 | |||
426 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
427 | } |
||
428 | |||
429 | return_ACPI_STATUS(status); |
||
430 | } |
||
431 | |||
432 | if (obj_desc != *stack_ptr) { |
||
433 | acpi_ut_remove_reference(obj_desc); |
||
434 | } |
||
435 | goto next_operand; |
||
436 | |||
437 | case ARGI_BUFFER: |
||
438 | /* |
||
439 | * Need an operand of type ACPI_TYPE_BUFFER, |
||
440 | * But we can implicitly convert from a STRING or INTEGER |
||
441 | * aka - "Implicit Source Operand Conversion" |
||
442 | */ |
||
443 | status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr); |
||
444 | if (ACPI_FAILURE(status)) { |
||
445 | if (status == AE_TYPE) { |
||
446 | ACPI_ERROR((AE_INFO, |
||
447 | "Needed [Integer/String/Buffer], found [%s] %p", |
||
448 | acpi_ut_get_object_type_name |
||
449 | (obj_desc), obj_desc)); |
||
450 | |||
451 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
452 | } |
||
453 | |||
454 | return_ACPI_STATUS(status); |
||
455 | } |
||
456 | |||
457 | if (obj_desc != *stack_ptr) { |
||
458 | acpi_ut_remove_reference(obj_desc); |
||
459 | } |
||
460 | goto next_operand; |
||
461 | |||
462 | case ARGI_STRING: |
||
463 | /* |
||
464 | * Need an operand of type ACPI_TYPE_STRING, |
||
465 | * But we can implicitly convert from a BUFFER or INTEGER |
||
466 | * aka - "Implicit Source Operand Conversion" |
||
467 | */ |
||
468 | status = acpi_ex_convert_to_string(obj_desc, stack_ptr, |
||
469 | ACPI_IMPLICIT_CONVERT_HEX); |
||
470 | if (ACPI_FAILURE(status)) { |
||
471 | if (status == AE_TYPE) { |
||
472 | ACPI_ERROR((AE_INFO, |
||
473 | "Needed [Integer/String/Buffer], found [%s] %p", |
||
474 | acpi_ut_get_object_type_name |
||
475 | (obj_desc), obj_desc)); |
||
476 | |||
477 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
478 | } |
||
479 | |||
480 | return_ACPI_STATUS(status); |
||
481 | } |
||
482 | |||
483 | if (obj_desc != *stack_ptr) { |
||
484 | acpi_ut_remove_reference(obj_desc); |
||
485 | } |
||
486 | goto next_operand; |
||
487 | |||
488 | case ARGI_COMPUTEDATA: |
||
489 | |||
490 | /* Need an operand of type INTEGER, STRING or BUFFER */ |
||
491 | |||
492 | switch (obj_desc->common.type) { |
||
493 | case ACPI_TYPE_INTEGER: |
||
494 | case ACPI_TYPE_STRING: |
||
495 | case ACPI_TYPE_BUFFER: |
||
496 | |||
497 | /* Valid operand */ |
||
498 | break; |
||
499 | |||
500 | default: |
||
501 | ACPI_ERROR((AE_INFO, |
||
502 | "Needed [Integer/String/Buffer], found [%s] %p", |
||
503 | acpi_ut_get_object_type_name |
||
504 | (obj_desc), obj_desc)); |
||
505 | |||
506 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
507 | } |
||
508 | goto next_operand; |
||
509 | |||
510 | case ARGI_BUFFER_OR_STRING: |
||
511 | |||
512 | /* Need an operand of type STRING or BUFFER */ |
||
513 | |||
514 | switch (obj_desc->common.type) { |
||
515 | case ACPI_TYPE_STRING: |
||
516 | case ACPI_TYPE_BUFFER: |
||
517 | |||
518 | /* Valid operand */ |
||
519 | break; |
||
520 | |||
521 | case ACPI_TYPE_INTEGER: |
||
522 | |||
523 | /* Highest priority conversion is to type Buffer */ |
||
524 | |||
525 | status = |
||
526 | acpi_ex_convert_to_buffer(obj_desc, |
||
527 | stack_ptr); |
||
528 | if (ACPI_FAILURE(status)) { |
||
529 | return_ACPI_STATUS(status); |
||
530 | } |
||
531 | |||
532 | if (obj_desc != *stack_ptr) { |
||
533 | acpi_ut_remove_reference(obj_desc); |
||
534 | } |
||
535 | break; |
||
536 | |||
537 | default: |
||
538 | ACPI_ERROR((AE_INFO, |
||
539 | "Needed [Integer/String/Buffer], found [%s] %p", |
||
540 | acpi_ut_get_object_type_name |
||
541 | (obj_desc), obj_desc)); |
||
542 | |||
543 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
544 | } |
||
545 | goto next_operand; |
||
546 | |||
547 | case ARGI_DATAOBJECT: |
||
548 | /* |
||
549 | * ARGI_DATAOBJECT is only used by the size_of operator. |
||
550 | * Need a buffer, string, package, or ref_of reference. |
||
551 | * |
||
552 | * The only reference allowed here is a direct reference to |
||
553 | * a namespace node. |
||
554 | */ |
||
555 | switch (obj_desc->common.type) { |
||
556 | case ACPI_TYPE_PACKAGE: |
||
557 | case ACPI_TYPE_STRING: |
||
558 | case ACPI_TYPE_BUFFER: |
||
559 | case ACPI_TYPE_LOCAL_REFERENCE: |
||
560 | |||
561 | /* Valid operand */ |
||
562 | break; |
||
563 | |||
564 | default: |
||
565 | |||
566 | ACPI_ERROR((AE_INFO, |
||
567 | "Needed [Buffer/String/Package/Reference], found [%s] %p", |
||
568 | acpi_ut_get_object_type_name |
||
569 | (obj_desc), obj_desc)); |
||
570 | |||
571 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
572 | } |
||
573 | goto next_operand; |
||
574 | |||
575 | case ARGI_COMPLEXOBJ: |
||
576 | |||
577 | /* Need a buffer or package or (ACPI 2.0) String */ |
||
578 | |||
579 | switch (obj_desc->common.type) { |
||
580 | case ACPI_TYPE_PACKAGE: |
||
581 | case ACPI_TYPE_STRING: |
||
582 | case ACPI_TYPE_BUFFER: |
||
583 | |||
584 | /* Valid operand */ |
||
585 | break; |
||
586 | |||
587 | default: |
||
588 | |||
589 | ACPI_ERROR((AE_INFO, |
||
590 | "Needed [Buffer/String/Package], found [%s] %p", |
||
591 | acpi_ut_get_object_type_name |
||
592 | (obj_desc), obj_desc)); |
||
593 | |||
594 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
595 | } |
||
596 | goto next_operand; |
||
597 | |||
598 | case ARGI_REGION_OR_BUFFER: /* Used by Load() only */ |
||
599 | |||
600 | /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */ |
||
601 | |||
602 | switch (obj_desc->common.type) { |
||
603 | case ACPI_TYPE_BUFFER: |
||
604 | case ACPI_TYPE_REGION: |
||
605 | |||
606 | /* Valid operand */ |
||
607 | break; |
||
608 | |||
609 | default: |
||
610 | |||
611 | ACPI_ERROR((AE_INFO, |
||
612 | "Needed [Region/Buffer], found [%s] %p", |
||
613 | acpi_ut_get_object_type_name |
||
614 | (obj_desc), obj_desc)); |
||
615 | |||
616 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
617 | } |
||
618 | goto next_operand; |
||
619 | |||
620 | case ARGI_DATAREFOBJ: |
||
621 | |||
622 | /* Used by the Store() operator only */ |
||
623 | |||
624 | switch (obj_desc->common.type) { |
||
625 | case ACPI_TYPE_INTEGER: |
||
626 | case ACPI_TYPE_PACKAGE: |
||
627 | case ACPI_TYPE_STRING: |
||
628 | case ACPI_TYPE_BUFFER: |
||
629 | case ACPI_TYPE_BUFFER_FIELD: |
||
630 | case ACPI_TYPE_LOCAL_REFERENCE: |
||
631 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
||
632 | case ACPI_TYPE_LOCAL_BANK_FIELD: |
||
633 | case ACPI_TYPE_LOCAL_INDEX_FIELD: |
||
634 | case ACPI_TYPE_DDB_HANDLE: |
||
635 | |||
636 | /* Valid operand */ |
||
637 | break; |
||
638 | |||
639 | default: |
||
640 | |||
641 | if (acpi_gbl_enable_interpreter_slack) { |
||
642 | /* |
||
643 | * Enable original behavior of Store(), allowing any and all |
||
644 | * objects as the source operand. The ACPI spec does not |
||
645 | * allow this, however. |
||
646 | */ |
||
647 | break; |
||
648 | } |
||
649 | |||
650 | if (target_op == AML_DEBUG_OP) { |
||
651 | |||
652 | /* Allow store of any object to the Debug object */ |
||
653 | |||
654 | break; |
||
655 | } |
||
656 | |||
657 | ACPI_ERROR((AE_INFO, |
||
658 | "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p", |
||
659 | acpi_ut_get_object_type_name |
||
660 | (obj_desc), obj_desc)); |
||
661 | |||
662 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
||
663 | } |
||
664 | goto next_operand; |
||
665 | |||
666 | default: |
||
667 | |||
668 | /* Unknown type */ |
||
669 | |||
670 | ACPI_ERROR((AE_INFO, |
||
671 | "Internal - Unknown ARGI (required operand) type 0x%X", |
||
672 | this_arg_type)); |
||
673 | |||
674 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
||
675 | } |
||
676 | |||
677 | /* |
||
678 | * Make sure that the original object was resolved to the |
||
679 | * required object type (Simple cases only). |
||
680 | */ |
||
681 | status = acpi_ex_check_object_type(type_needed, |
||
682 | (*stack_ptr)->common.type, |
||
683 | *stack_ptr); |
||
684 | if (ACPI_FAILURE(status)) { |
||
685 | return_ACPI_STATUS(status); |
||
686 | } |
||
687 | |||
688 | next_operand: |
||
689 | /* |
||
690 | * If more operands needed, decrement stack_ptr to point |
||
691 | * to next operand on stack |
||
692 | */ |
||
693 | if (GET_CURRENT_ARG_TYPE(arg_types)) { |
||
694 | stack_ptr--; |
||
695 | } |
||
696 | } |
||
697 | |||
698 | ACPI_DUMP_OPERANDS(walk_state->operands, |
||
699 | acpi_ps_get_opcode_name(opcode), |
||
700 | walk_state->num_operands); |
||
701 | |||
702 | return_ACPI_STATUS(status); |
||
703 | } |