Commit | Line | Data |
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1da177e4 LT |
1 | |
2 | /****************************************************************************** | |
3 | * | |
4 | * Module Name: exresop - AML Interpreter operand/object resolution | |
5 | * | |
6 | *****************************************************************************/ | |
7 | ||
8 | /* | |
75a44ce0 | 9 | * Copyright (C) 2000 - 2008, Intel Corp. |
1da177e4 LT |
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 | ||
1da177e4 LT |
45 | #include <acpi/acpi.h> |
46 | #include <acpi/amlcode.h> | |
47 | #include <acpi/acparser.h> | |
48 | #include <acpi/acinterp.h> | |
b8e4d893 | 49 | #include <acpi/acnamesp.h> |
1da177e4 | 50 | |
1da177e4 | 51 | #define _COMPONENT ACPI_EXECUTER |
4be44fcd | 52 | ACPI_MODULE_NAME("exresop") |
1da177e4 | 53 | |
44f6c012 | 54 | /* Local prototypes */ |
44f6c012 | 55 | static acpi_status |
4be44fcd LB |
56 | acpi_ex_check_object_type(acpi_object_type type_needed, |
57 | acpi_object_type this_type, void *object); | |
1da177e4 LT |
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 | ||
44f6c012 | 73 | static acpi_status |
4be44fcd LB |
74 | acpi_ex_check_object_type(acpi_object_type type_needed, |
75 | acpi_object_type this_type, void *object) | |
1da177e4 | 76 | { |
4a90c7e8 | 77 | ACPI_FUNCTION_ENTRY(); |
1da177e4 LT |
78 | |
79 | if (type_needed == ACPI_TYPE_ANY) { | |
52fc0b02 | 80 | |
1da177e4 LT |
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) && | |
4be44fcd LB |
93 | (((union acpi_operand_object *)object)->common. |
94 | flags & AOPOBJ_AML_CONSTANT)) { | |
1da177e4 LT |
95 | return (AE_OK); |
96 | } | |
97 | } | |
98 | ||
99 | if (type_needed != this_type) { | |
b8e4d893 BM |
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)); | |
1da177e4 LT |
104 | |
105 | return (AE_AML_OPERAND_TYPE); | |
106 | } | |
107 | ||
108 | return (AE_OK); | |
109 | } | |
110 | ||
1da177e4 LT |
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 | |
4be44fcd LB |
133 | acpi_ex_resolve_operands(u16 opcode, |
134 | union acpi_operand_object ** stack_ptr, | |
135 | struct acpi_walk_state * walk_state) | |
1da177e4 | 136 | { |
4be44fcd LB |
137 | union acpi_operand_object *obj_desc; |
138 | acpi_status status = AE_OK; | |
139 | u8 object_type; | |
4be44fcd LB |
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 | ||
b229cf92 | 146 | ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode); |
4be44fcd LB |
147 | |
148 | op_info = acpi_ps_get_opcode_info(opcode); | |
1da177e4 | 149 | if (op_info->class == AML_CLASS_UNKNOWN) { |
4be44fcd | 150 | return_ACPI_STATUS(AE_AML_BAD_OPCODE); |
1da177e4 LT |
151 | } |
152 | ||
153 | arg_types = op_info->runtime_args; | |
154 | if (arg_types == ARGI_INVALID_OPCODE) { | |
b8e4d893 | 155 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode)); |
1da177e4 | 156 | |
4be44fcd | 157 | return_ACPI_STATUS(AE_AML_INTERNAL); |
1da177e4 LT |
158 | } |
159 | ||
4be44fcd | 160 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
b229cf92 | 161 | "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", |
4be44fcd | 162 | opcode, op_info->name, arg_types)); |
1da177e4 LT |
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 | */ | |
4be44fcd | 171 | while (GET_CURRENT_ARG_TYPE(arg_types)) { |
1da177e4 | 172 | if (!stack_ptr || !*stack_ptr) { |
b8e4d893 BM |
173 | ACPI_ERROR((AE_INFO, "Null stack entry at %p", |
174 | stack_ptr)); | |
1da177e4 | 175 | |
4be44fcd | 176 | return_ACPI_STATUS(AE_AML_INTERNAL); |
1da177e4 LT |
177 | } |
178 | ||
179 | /* Extract useful items */ | |
180 | ||
181 | obj_desc = *stack_ptr; | |
182 | ||
183 | /* Decode the descriptor type */ | |
184 | ||
4be44fcd | 185 | switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { |
1da177e4 LT |
186 | case ACPI_DESC_TYPE_NAMED: |
187 | ||
44f6c012 | 188 | /* Namespace Node */ |
1da177e4 | 189 | |
4be44fcd LB |
190 | object_type = |
191 | ((struct acpi_namespace_node *)obj_desc)->type; | |
b8e4d893 BM |
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 | } | |
1da177e4 LT |
208 | break; |
209 | ||
1da177e4 LT |
210 | case ACPI_DESC_TYPE_OPERAND: |
211 | ||
212 | /* ACPI internal object */ | |
213 | ||
4be44fcd | 214 | object_type = ACPI_GET_OBJECT_TYPE(obj_desc); |
1da177e4 LT |
215 | |
216 | /* Check for bad acpi_object_type */ | |
217 | ||
4be44fcd | 218 | if (!acpi_ut_valid_object_type(object_type)) { |
b8e4d893 BM |
219 | ACPI_ERROR((AE_INFO, |
220 | "Bad operand object type [%X]", | |
221 | object_type)); | |
1da177e4 | 222 | |
4be44fcd | 223 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
224 | } |
225 | ||
226 | if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) { | |
52fc0b02 | 227 | |
44f6c012 RM |
228 | /* Decode the Reference */ |
229 | ||
4be44fcd | 230 | op_info = acpi_ps_get_opcode_info(opcode); |
1da177e4 | 231 | if (op_info->class == AML_CLASS_UNKNOWN) { |
4be44fcd | 232 | return_ACPI_STATUS(AE_AML_BAD_OPCODE); |
1da177e4 LT |
233 | } |
234 | ||
235 | switch (obj_desc->reference.opcode) { | |
236 | case AML_DEBUG_OP: | |
44f6c012 RM |
237 | target_op = AML_DEBUG_OP; |
238 | ||
239 | /*lint -fallthrough */ | |
240 | ||
1da177e4 LT |
241 | case AML_INDEX_OP: |
242 | case AML_REF_OF_OP: | |
243 | case AML_ARG_OP: | |
244 | case AML_LOCAL_OP: | |
4be44fcd LB |
245 | case AML_LOAD_OP: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */ |
246 | case AML_INT_NAMEPATH_OP: /* Reference to a named object */ | |
247 | ||
248 | ACPI_DEBUG_ONLY_MEMBERS(ACPI_DEBUG_PRINT | |
249 | ((ACPI_DB_EXEC, | |
b229cf92 | 250 | "Operand is a Reference, RefOpcode [%s]\n", |
4be44fcd LB |
251 | (acpi_ps_get_opcode_info |
252 | (obj_desc-> | |
253 | reference. | |
254 | opcode))-> | |
255 | name))); | |
1da177e4 LT |
256 | break; |
257 | ||
258 | default: | |
b8e4d893 BM |
259 | ACPI_ERROR((AE_INFO, |
260 | "Operand is a Reference, Unknown Reference Opcode: %X", | |
261 | obj_desc->reference. | |
262 | opcode)); | |
4be44fcd LB |
263 | |
264 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); | |
1da177e4 LT |
265 | } |
266 | } | |
267 | break; | |
268 | ||
1da177e4 LT |
269 | default: |
270 | ||
271 | /* Invalid descriptor */ | |
272 | ||
b8e4d893 BM |
273 | ACPI_ERROR((AE_INFO, |
274 | "Invalid descriptor %p [%s]", | |
275 | obj_desc, | |
276 | acpi_ut_get_descriptor_name(obj_desc))); | |
1da177e4 | 277 | |
4be44fcd | 278 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
279 | } |
280 | ||
44f6c012 | 281 | /* Get one argument type, point to the next */ |
1da177e4 | 282 | |
4be44fcd LB |
283 | this_arg_type = GET_CURRENT_ARG_TYPE(arg_types); |
284 | INCREMENT_ARG_LIST(arg_types); | |
1da177e4 LT |
285 | |
286 | /* | |
287 | * Handle cases where the object does not need to be | |
288 | * resolved to a value | |
289 | */ | |
290 | switch (this_arg_type) { | |
4be44fcd | 291 | case ARGI_REF_OR_STRING: /* Can be a String or Reference */ |
1da177e4 | 292 | |
4be44fcd LB |
293 | if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == |
294 | ACPI_DESC_TYPE_OPERAND) | |
295 | && (ACPI_GET_OBJECT_TYPE(obj_desc) == | |
296 | ACPI_TYPE_STRING)) { | |
1da177e4 | 297 | /* |
44f6c012 RM |
298 | * String found - the string references a named object and |
299 | * must be resolved to a node | |
1da177e4 LT |
300 | */ |
301 | goto next_operand; | |
302 | } | |
303 | ||
44f6c012 RM |
304 | /* |
305 | * Else not a string - fall through to the normal Reference | |
306 | * case below | |
307 | */ | |
1da177e4 LT |
308 | /*lint -fallthrough */ |
309 | ||
4be44fcd | 310 | case ARGI_REFERENCE: /* References: */ |
1da177e4 LT |
311 | case ARGI_INTEGER_REF: |
312 | case ARGI_OBJECT_REF: | |
313 | case ARGI_DEVICE_REF: | |
4be44fcd LB |
314 | case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ |
315 | case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ | |
316 | case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ | |
1da177e4 | 317 | |
44f6c012 RM |
318 | /* |
319 | * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE | |
320 | * A Namespace Node is OK as-is | |
321 | */ | |
4be44fcd LB |
322 | if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == |
323 | ACPI_DESC_TYPE_NAMED) { | |
1da177e4 LT |
324 | goto next_operand; |
325 | } | |
326 | ||
4be44fcd LB |
327 | status = |
328 | acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE, | |
329 | object_type, obj_desc); | |
330 | if (ACPI_FAILURE(status)) { | |
331 | return_ACPI_STATUS(status); | |
1da177e4 | 332 | } |
1da177e4 LT |
333 | goto next_operand; |
334 | ||
4be44fcd | 335 | case ARGI_DATAREFOBJ: /* Store operator only */ |
1da177e4 LT |
336 | |
337 | /* | |
338 | * We don't want to resolve index_op reference objects during | |
339 | * a store because this would be an implicit de_ref_of operation. | |
340 | * Instead, we just want to store the reference object. | |
341 | * -- All others must be resolved below. | |
342 | */ | |
343 | if ((opcode == AML_STORE_OP) && | |
4be44fcd LB |
344 | (ACPI_GET_OBJECT_TYPE(*stack_ptr) == |
345 | ACPI_TYPE_LOCAL_REFERENCE) | |
fd350943 | 346 | && ((*stack_ptr)->reference.opcode == AML_INDEX_OP)) { |
1da177e4 LT |
347 | goto next_operand; |
348 | } | |
349 | break; | |
350 | ||
351 | default: | |
352 | /* All cases covered above */ | |
353 | break; | |
354 | } | |
355 | ||
1da177e4 LT |
356 | /* |
357 | * Resolve this object to a value | |
358 | */ | |
4be44fcd LB |
359 | status = acpi_ex_resolve_to_value(stack_ptr, walk_state); |
360 | if (ACPI_FAILURE(status)) { | |
361 | return_ACPI_STATUS(status); | |
1da177e4 LT |
362 | } |
363 | ||
364 | /* Get the resolved object */ | |
365 | ||
366 | obj_desc = *stack_ptr; | |
367 | ||
368 | /* | |
369 | * Check the resulting object (value) type | |
370 | */ | |
371 | switch (this_arg_type) { | |
4be44fcd LB |
372 | /* |
373 | * For the simple cases, only one type of resolved object | |
374 | * is allowed | |
375 | */ | |
1da177e4 LT |
376 | case ARGI_MUTEX: |
377 | ||
378 | /* Need an operand of type ACPI_TYPE_MUTEX */ | |
379 | ||
380 | type_needed = ACPI_TYPE_MUTEX; | |
381 | break; | |
382 | ||
383 | case ARGI_EVENT: | |
384 | ||
385 | /* Need an operand of type ACPI_TYPE_EVENT */ | |
386 | ||
387 | type_needed = ACPI_TYPE_EVENT; | |
388 | break; | |
389 | ||
4be44fcd | 390 | case ARGI_PACKAGE: /* Package */ |
1da177e4 LT |
391 | |
392 | /* Need an operand of type ACPI_TYPE_PACKAGE */ | |
393 | ||
394 | type_needed = ACPI_TYPE_PACKAGE; | |
395 | break; | |
396 | ||
397 | case ARGI_ANYTYPE: | |
398 | ||
399 | /* Any operand type will do */ | |
400 | ||
401 | type_needed = ACPI_TYPE_ANY; | |
402 | break; | |
403 | ||
404 | case ARGI_DDBHANDLE: | |
405 | ||
406 | /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ | |
407 | ||
408 | type_needed = ACPI_TYPE_LOCAL_REFERENCE; | |
409 | break; | |
410 | ||
4be44fcd LB |
411 | /* |
412 | * The more complex cases allow multiple resolved object types | |
413 | */ | |
44f6c012 | 414 | case ARGI_INTEGER: |
1da177e4 LT |
415 | |
416 | /* | |
417 | * Need an operand of type ACPI_TYPE_INTEGER, | |
418 | * But we can implicitly convert from a STRING or BUFFER | |
419 | * Aka - "Implicit Source Operand Conversion" | |
420 | */ | |
4be44fcd LB |
421 | status = |
422 | acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16); | |
423 | if (ACPI_FAILURE(status)) { | |
1da177e4 | 424 | if (status == AE_TYPE) { |
b8e4d893 BM |
425 | ACPI_ERROR((AE_INFO, |
426 | "Needed [Integer/String/Buffer], found [%s] %p", | |
427 | acpi_ut_get_object_type_name | |
428 | (obj_desc), obj_desc)); | |
1da177e4 | 429 | |
4be44fcd | 430 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
431 | } |
432 | ||
4be44fcd | 433 | return_ACPI_STATUS(status); |
1da177e4 | 434 | } |
f9f4601f RM |
435 | |
436 | if (obj_desc != *stack_ptr) { | |
4be44fcd | 437 | acpi_ut_remove_reference(obj_desc); |
f9f4601f | 438 | } |
1da177e4 LT |
439 | goto next_operand; |
440 | ||
1da177e4 LT |
441 | case ARGI_BUFFER: |
442 | ||
443 | /* | |
444 | * Need an operand of type ACPI_TYPE_BUFFER, | |
445 | * But we can implicitly convert from a STRING or INTEGER | |
446 | * Aka - "Implicit Source Operand Conversion" | |
447 | */ | |
4be44fcd LB |
448 | status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr); |
449 | if (ACPI_FAILURE(status)) { | |
1da177e4 | 450 | if (status == AE_TYPE) { |
b8e4d893 BM |
451 | ACPI_ERROR((AE_INFO, |
452 | "Needed [Integer/String/Buffer], found [%s] %p", | |
453 | acpi_ut_get_object_type_name | |
454 | (obj_desc), obj_desc)); | |
1da177e4 | 455 | |
4be44fcd | 456 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
457 | } |
458 | ||
4be44fcd | 459 | return_ACPI_STATUS(status); |
1da177e4 | 460 | } |
f9f4601f RM |
461 | |
462 | if (obj_desc != *stack_ptr) { | |
4be44fcd | 463 | acpi_ut_remove_reference(obj_desc); |
f9f4601f | 464 | } |
1da177e4 LT |
465 | goto next_operand; |
466 | ||
1da177e4 LT |
467 | case ARGI_STRING: |
468 | ||
469 | /* | |
470 | * Need an operand of type ACPI_TYPE_STRING, | |
471 | * But we can implicitly convert from a BUFFER or INTEGER | |
472 | * Aka - "Implicit Source Operand Conversion" | |
473 | */ | |
4be44fcd LB |
474 | status = acpi_ex_convert_to_string(obj_desc, stack_ptr, |
475 | ACPI_IMPLICIT_CONVERT_HEX); | |
476 | if (ACPI_FAILURE(status)) { | |
1da177e4 | 477 | if (status == AE_TYPE) { |
b8e4d893 BM |
478 | ACPI_ERROR((AE_INFO, |
479 | "Needed [Integer/String/Buffer], found [%s] %p", | |
480 | acpi_ut_get_object_type_name | |
481 | (obj_desc), obj_desc)); | |
1da177e4 | 482 | |
4be44fcd | 483 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
484 | } |
485 | ||
4be44fcd | 486 | return_ACPI_STATUS(status); |
1da177e4 | 487 | } |
f9f4601f RM |
488 | |
489 | if (obj_desc != *stack_ptr) { | |
4be44fcd | 490 | acpi_ut_remove_reference(obj_desc); |
f9f4601f | 491 | } |
1da177e4 LT |
492 | goto next_operand; |
493 | ||
1da177e4 LT |
494 | case ARGI_COMPUTEDATA: |
495 | ||
496 | /* Need an operand of type INTEGER, STRING or BUFFER */ | |
497 | ||
4be44fcd | 498 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
1da177e4 LT |
499 | case ACPI_TYPE_INTEGER: |
500 | case ACPI_TYPE_STRING: | |
501 | case ACPI_TYPE_BUFFER: | |
502 | ||
503 | /* Valid operand */ | |
4be44fcd | 504 | break; |
1da177e4 LT |
505 | |
506 | default: | |
b8e4d893 BM |
507 | ACPI_ERROR((AE_INFO, |
508 | "Needed [Integer/String/Buffer], found [%s] %p", | |
509 | acpi_ut_get_object_type_name | |
510 | (obj_desc), obj_desc)); | |
1da177e4 | 511 | |
4be44fcd | 512 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
513 | } |
514 | goto next_operand; | |
515 | ||
1da177e4 LT |
516 | case ARGI_BUFFER_OR_STRING: |
517 | ||
518 | /* Need an operand of type STRING or BUFFER */ | |
519 | ||
4be44fcd | 520 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
1da177e4 LT |
521 | case ACPI_TYPE_STRING: |
522 | case ACPI_TYPE_BUFFER: | |
523 | ||
524 | /* Valid operand */ | |
4be44fcd | 525 | break; |
1da177e4 LT |
526 | |
527 | case ACPI_TYPE_INTEGER: | |
528 | ||
529 | /* Highest priority conversion is to type Buffer */ | |
530 | ||
4be44fcd LB |
531 | status = |
532 | acpi_ex_convert_to_buffer(obj_desc, | |
533 | stack_ptr); | |
534 | if (ACPI_FAILURE(status)) { | |
535 | return_ACPI_STATUS(status); | |
1da177e4 | 536 | } |
f9f4601f RM |
537 | |
538 | if (obj_desc != *stack_ptr) { | |
4be44fcd | 539 | acpi_ut_remove_reference(obj_desc); |
f9f4601f | 540 | } |
1da177e4 LT |
541 | break; |
542 | ||
543 | default: | |
b8e4d893 BM |
544 | ACPI_ERROR((AE_INFO, |
545 | "Needed [Integer/String/Buffer], found [%s] %p", | |
546 | acpi_ut_get_object_type_name | |
547 | (obj_desc), obj_desc)); | |
1da177e4 | 548 | |
4be44fcd | 549 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
550 | } |
551 | goto next_operand; | |
552 | ||
1da177e4 LT |
553 | case ARGI_DATAOBJECT: |
554 | /* | |
555 | * ARGI_DATAOBJECT is only used by the size_of operator. | |
556 | * Need a buffer, string, package, or ref_of reference. | |
557 | * | |
558 | * The only reference allowed here is a direct reference to | |
559 | * a namespace node. | |
560 | */ | |
4be44fcd | 561 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
1da177e4 LT |
562 | case ACPI_TYPE_PACKAGE: |
563 | case ACPI_TYPE_STRING: | |
564 | case ACPI_TYPE_BUFFER: | |
565 | case ACPI_TYPE_LOCAL_REFERENCE: | |
566 | ||
567 | /* Valid operand */ | |
568 | break; | |
569 | ||
570 | default: | |
b8e4d893 BM |
571 | ACPI_ERROR((AE_INFO, |
572 | "Needed [Buffer/String/Package/Reference], found [%s] %p", | |
573 | acpi_ut_get_object_type_name | |
574 | (obj_desc), obj_desc)); | |
1da177e4 | 575 | |
4be44fcd | 576 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
577 | } |
578 | goto next_operand; | |
579 | ||
1da177e4 LT |
580 | case ARGI_COMPLEXOBJ: |
581 | ||
582 | /* Need a buffer or package or (ACPI 2.0) String */ | |
583 | ||
4be44fcd | 584 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
1da177e4 LT |
585 | case ACPI_TYPE_PACKAGE: |
586 | case ACPI_TYPE_STRING: | |
587 | case ACPI_TYPE_BUFFER: | |
588 | ||
589 | /* Valid operand */ | |
590 | break; | |
591 | ||
592 | default: | |
b8e4d893 BM |
593 | ACPI_ERROR((AE_INFO, |
594 | "Needed [Buffer/String/Package], found [%s] %p", | |
595 | acpi_ut_get_object_type_name | |
596 | (obj_desc), obj_desc)); | |
1da177e4 | 597 | |
4be44fcd | 598 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
599 | } |
600 | goto next_operand; | |
601 | ||
a6823e12 | 602 | case ARGI_REGION_OR_BUFFER: /* Used by Load() only */ |
1da177e4 | 603 | |
a6823e12 | 604 | /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */ |
1da177e4 | 605 | |
4be44fcd | 606 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
a6823e12 | 607 | case ACPI_TYPE_BUFFER: |
1da177e4 | 608 | case ACPI_TYPE_REGION: |
1da177e4 LT |
609 | |
610 | /* Valid operand */ | |
611 | break; | |
612 | ||
613 | default: | |
b8e4d893 | 614 | ACPI_ERROR((AE_INFO, |
a6823e12 | 615 | "Needed [Region/Buffer], found [%s] %p", |
b8e4d893 BM |
616 | acpi_ut_get_object_type_name |
617 | (obj_desc), obj_desc)); | |
1da177e4 | 618 | |
4be44fcd | 619 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
620 | } |
621 | goto next_operand; | |
622 | ||
1da177e4 LT |
623 | case ARGI_DATAREFOBJ: |
624 | ||
625 | /* Used by the Store() operator only */ | |
626 | ||
4be44fcd | 627 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
1da177e4 LT |
628 | case ACPI_TYPE_INTEGER: |
629 | case ACPI_TYPE_PACKAGE: | |
630 | case ACPI_TYPE_STRING: | |
631 | case ACPI_TYPE_BUFFER: | |
632 | case ACPI_TYPE_BUFFER_FIELD: | |
633 | case ACPI_TYPE_LOCAL_REFERENCE: | |
634 | case ACPI_TYPE_LOCAL_REGION_FIELD: | |
635 | case ACPI_TYPE_LOCAL_BANK_FIELD: | |
636 | case ACPI_TYPE_LOCAL_INDEX_FIELD: | |
637 | case ACPI_TYPE_DDB_HANDLE: | |
638 | ||
639 | /* Valid operand */ | |
640 | break; | |
641 | ||
642 | default: | |
643 | ||
644 | if (acpi_gbl_enable_interpreter_slack) { | |
645 | /* | |
646 | * Enable original behavior of Store(), allowing any and all | |
647 | * objects as the source operand. The ACPI spec does not | |
648 | * allow this, however. | |
649 | */ | |
650 | break; | |
651 | } | |
652 | ||
44f6c012 | 653 | if (target_op == AML_DEBUG_OP) { |
52fc0b02 | 654 | |
44f6c012 RM |
655 | /* Allow store of any object to the Debug object */ |
656 | ||
657 | break; | |
658 | } | |
659 | ||
b8e4d893 BM |
660 | ACPI_ERROR((AE_INFO, |
661 | "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p", | |
662 | acpi_ut_get_object_type_name | |
663 | (obj_desc), obj_desc)); | |
1da177e4 | 664 | |
4be44fcd | 665 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
1da177e4 LT |
666 | } |
667 | goto next_operand; | |
668 | ||
1da177e4 LT |
669 | default: |
670 | ||
671 | /* Unknown type */ | |
672 | ||
b8e4d893 BM |
673 | ACPI_ERROR((AE_INFO, |
674 | "Internal - Unknown ARGI (required operand) type %X", | |
675 | this_arg_type)); | |
1da177e4 | 676 | |
4be44fcd | 677 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
1da177e4 LT |
678 | } |
679 | ||
680 | /* | |
681 | * Make sure that the original object was resolved to the | |
682 | * required object type (Simple cases only). | |
683 | */ | |
4be44fcd LB |
684 | status = acpi_ex_check_object_type(type_needed, |
685 | ACPI_GET_OBJECT_TYPE | |
686 | (*stack_ptr), *stack_ptr); | |
687 | if (ACPI_FAILURE(status)) { | |
688 | return_ACPI_STATUS(status); | |
1da177e4 LT |
689 | } |
690 | ||
4be44fcd | 691 | next_operand: |
1da177e4 LT |
692 | /* |
693 | * If more operands needed, decrement stack_ptr to point | |
694 | * to next operand on stack | |
695 | */ | |
4be44fcd | 696 | if (GET_CURRENT_ARG_TYPE(arg_types)) { |
1da177e4 LT |
697 | stack_ptr--; |
698 | } | |
44f6c012 | 699 | } |
1da177e4 | 700 | |
4be44fcd | 701 | return_ACPI_STATUS(status); |
1da177e4 | 702 | } |