?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / acpi / acpica / dsobject.c
blobd7303a95cc77aa017cefde6da3252badf2aac305
1 /******************************************************************************
2 *
3 * Module Name: dsobject - Dispatcher object management routines
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2010, 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 <acpi/acpi.h>
45 #include "accommon.h"
46 #include "acparser.h"
47 #include "amlcode.h"
48 #include "acdispat.h"
49 #include "acnamesp.h"
50 #include "acinterp.h"
51
52 #define _COMPONENT ACPI_DISPATCHER
53 ACPI_MODULE_NAME("dsobject")
54
55 /* Local prototypes */
56 static acpi_status
57 acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
58 union acpi_parse_object *op,
59 union acpi_operand_object **obj_desc_ptr);
60
61 #ifndef ACPI_NO_METHOD_EXECUTION
62 /*******************************************************************************
63 *
64 * FUNCTION: acpi_ds_build_internal_object
65 *
66 * PARAMETERS: walk_state - Current walk state
67 * Op - Parser object to be translated
68 * obj_desc_ptr - Where the ACPI internal object is returned
69 *
70 * RETURN: Status
71 *
72 * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
73 * Simple objects are any objects other than a package object!
74 *
75 ******************************************************************************/
76
77 static acpi_status
78 acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
79 union acpi_parse_object *op,
80 union acpi_operand_object **obj_desc_ptr)
81 {
82 union acpi_operand_object *obj_desc;
83 acpi_status status;
84 acpi_object_type type;
85
86 ACPI_FUNCTION_TRACE(ds_build_internal_object);
87
88 *obj_desc_ptr = NULL;
89 if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
90 /*
91 * This is a named object reference. If this name was
92 * previously looked up in the namespace, it was stored in this op.
93 * Otherwise, go ahead and look it up now
94 */
95 if (!op->common.node) {
96 status = acpi_ns_lookup(walk_state->scope_info,
97 op->common.value.string,
98 ACPI_TYPE_ANY,
99 ACPI_IMODE_EXECUTE,
100 ACPI_NS_SEARCH_PARENT |
101 ACPI_NS_DONT_OPEN_SCOPE, NULL,
102 ACPI_CAST_INDIRECT_PTR(struct
103 acpi_namespace_node,
104 &(op->
105 common.
106 node)));
107 if (ACPI_FAILURE(status)) {
108
109 /* Check if we are resolving a named reference within a package */
110
111 if ((status == AE_NOT_FOUND)
112 && (acpi_gbl_enable_interpreter_slack)
113 &&
114 ((op->common.parent->common.aml_opcode ==
115 AML_PACKAGE_OP)
116 || (op->common.parent->common.aml_opcode ==
117 AML_VAR_PACKAGE_OP))) {
118 /*
119 * We didn't find the target and we are populating elements
120 * of a package - ignore if slack enabled. Some ASL code
121 * contains dangling invalid references in packages and
122 * expects that no exception will be issued. Leave the
123 * element as a null element. It cannot be used, but it
124 * can be overwritten by subsequent ASL code - this is
125 * typically the case.
126 */
127 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
128 "Ignoring unresolved reference in package [%4.4s]\n",
129 walk_state->
130 scope_info->scope.
131 node->name.ascii));
132
133 return_ACPI_STATUS(AE_OK);
134 } else {
135 ACPI_ERROR_NAMESPACE(op->common.value.
136 string, status);
137 }
138
139 return_ACPI_STATUS(status);
140 }
141 }
142
143 /* Special object resolution for elements of a package */
144
145 if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
146 (op->common.parent->common.aml_opcode ==
147 AML_VAR_PACKAGE_OP)) {
148 /*
149 * Attempt to resolve the node to a value before we insert it into
150 * the package. If this is a reference to a common data type,
151 * resolve it immediately. According to the ACPI spec, package
152 * elements can only be "data objects" or method references.
153 * Attempt to resolve to an Integer, Buffer, String or Package.
154 * If cannot, return the named reference (for things like Devices,
155 * Methods, etc.) Buffer Fields and Fields will resolve to simple
156 * objects (int/buf/str/pkg).
157 *
158 * NOTE: References to things like Devices, Methods, Mutexes, etc.
159 * will remain as named references. This behavior is not described
160 * in the ACPI spec, but it appears to be an oversight.
161 */
162 obj_desc =
163 ACPI_CAST_PTR(union acpi_operand_object,
164 op->common.node);
165
166 status =
167 acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
168 (struct
169 acpi_namespace_node,
170 &obj_desc),
171 walk_state);
172 if (ACPI_FAILURE(status)) {
173 return_ACPI_STATUS(status);
174 }
175
176 /*
177 * Special handling for Alias objects. We need to setup the type
178 * and the Op->Common.Node to point to the Alias target. Note,
179 * Alias has at most one level of indirection internally.
180 */
181 type = op->common.node->type;
182 if (type == ACPI_TYPE_LOCAL_ALIAS) {
183 type = obj_desc->common.type;
184 op->common.node =
185 ACPI_CAST_PTR(struct acpi_namespace_node,
186 op->common.node->object);
187 }
188
189 switch (type) {
190 /*
191 * For these types, we need the actual node, not the subobject.
192 * However, the subobject did not get an extra reference count above.
193 *
194 * TBD: should ex_resolve_node_to_value be changed to fix this?
195 */
196 case ACPI_TYPE_DEVICE:
197 case ACPI_TYPE_THERMAL:
198
199 acpi_ut_add_reference(op->common.node->object);
200
201 /*lint -fallthrough */
202 /*
203 * For these types, we need the actual node, not the subobject.
204 * The subobject got an extra reference count in ex_resolve_node_to_value.
205 */
206 case ACPI_TYPE_MUTEX:
207 case ACPI_TYPE_METHOD:
208 case ACPI_TYPE_POWER:
209 case ACPI_TYPE_PROCESSOR:
210 case ACPI_TYPE_EVENT:
211 case ACPI_TYPE_REGION:
212
213 /* We will create a reference object for these types below */
214 break;
215
216 default:
217 /*
218 * All other types - the node was resolved to an actual
219 * object, we are done.
220 */
221 goto exit;
222 }
223 }
224 }
225
226 /* Create and init a new internal ACPI object */
227
228 obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info
229 (op->common.aml_opcode))->
230 object_type);
231 if (!obj_desc) {
232 return_ACPI_STATUS(AE_NO_MEMORY);
233 }
234
235 status =
236 acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode,
237 &obj_desc);
238 if (ACPI_FAILURE(status)) {
239 acpi_ut_remove_reference(obj_desc);
240 return_ACPI_STATUS(status);
241 }
242
243 exit:
244 *obj_desc_ptr = obj_desc;
245 return_ACPI_STATUS(status);
246 }
247
248 /*******************************************************************************
249 *
250 * FUNCTION: acpi_ds_build_internal_buffer_obj
251 *
252 * PARAMETERS: walk_state - Current walk state
253 * Op - Parser object to be translated
254 * buffer_length - Length of the buffer
255 * obj_desc_ptr - Where the ACPI internal object is returned
256 *
257 * RETURN: Status
258 *
259 * DESCRIPTION: Translate a parser Op package object to the equivalent
260 * namespace object
261 *
262 ******************************************************************************/
263
264 acpi_status
265 acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
266 union acpi_parse_object *op,
267 u32 buffer_length,
268 union acpi_operand_object **obj_desc_ptr)
269 {
270 union acpi_parse_object *arg;
271 union acpi_operand_object *obj_desc;
272 union acpi_parse_object *byte_list;
273 u32 byte_list_length = 0;
274
275 ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj);
276
277 obj_desc = *obj_desc_ptr;
278 if (!obj_desc) {
279
280 /* Create a new buffer object */
281
282 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
283 *obj_desc_ptr = obj_desc;
284 if (!obj_desc) {
285 return_ACPI_STATUS(AE_NO_MEMORY);
286 }
287 }
288
289 /*
290 * Second arg is the buffer data (optional) byte_list can be either
291 * individual bytes or a string initializer. In either case, a
292 * byte_list appears in the AML.
293 */
294 arg = op->common.value.arg; /* skip first arg */
295
296 byte_list = arg->named.next;
297 if (byte_list) {
298 if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) {
299 ACPI_ERROR((AE_INFO,
300 "Expecting bytelist, found AML opcode 0x%X in op %p",
301 byte_list->common.aml_opcode, byte_list));
302
303 acpi_ut_remove_reference(obj_desc);
304 return (AE_TYPE);
305 }
306
307 byte_list_length = (u32) byte_list->common.value.integer;
308 }
309
310 /*
311 * The buffer length (number of bytes) will be the larger of:
312 * 1) The specified buffer length and
313 * 2) The length of the initializer byte list
314 */
315 obj_desc->buffer.length = buffer_length;
316 if (byte_list_length > buffer_length) {
317 obj_desc->buffer.length = byte_list_length;
318 }
319
320 /* Allocate the buffer */
321
322 if (obj_desc->buffer.length == 0) {
323 obj_desc->buffer.pointer = NULL;
324 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
325 "Buffer defined with zero length in AML, creating\n"));
326 } else {
327 obj_desc->buffer.pointer =
328 ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length);
329 if (!obj_desc->buffer.pointer) {
330 acpi_ut_delete_object_desc(obj_desc);
331 return_ACPI_STATUS(AE_NO_MEMORY);
332 }
333
334 /* Initialize buffer from the byte_list (if present) */
335
336 if (byte_list) {
337 ACPI_MEMCPY(obj_desc->buffer.pointer,
338 byte_list->named.data, byte_list_length);
339 }
340 }
341
342 obj_desc->buffer.flags |= AOPOBJ_DATA_VALID;
343 op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
344 return_ACPI_STATUS(AE_OK);
345 }
346
347 /*******************************************************************************
348 *
349 * FUNCTION: acpi_ds_build_internal_package_obj
350 *
351 * PARAMETERS: walk_state - Current walk state
352 * Op - Parser object to be translated
353 * element_count - Number of elements in the package - this is
354 * the num_elements argument to Package()
355 * obj_desc_ptr - Where the ACPI internal object is returned
356 *
357 * RETURN: Status
358 *
359 * DESCRIPTION: Translate a parser Op package object to the equivalent
360 * namespace object
361 *
362 * NOTE: The number of elements in the package will be always be the num_elements
363 * count, regardless of the number of elements in the package list. If
364 * num_elements is smaller, only that many package list elements are used.
365 * if num_elements is larger, the Package object is padded out with
366 * objects of type Uninitialized (as per ACPI spec.)
367 *
368 * Even though the ASL compilers do not allow num_elements to be smaller
369 * than the Package list length (for the fixed length package opcode), some
370 * BIOS code modifies the AML on the fly to adjust the num_elements, and
371 * this code compensates for that. This also provides compatibility with
372 * other AML interpreters.
373 *
374 ******************************************************************************/
375
376 acpi_status
377 acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
378 union acpi_parse_object *op,
379 u32 element_count,
380 union acpi_operand_object **obj_desc_ptr)
381 {
382 union acpi_parse_object *arg;
383 union acpi_parse_object *parent;
384 union acpi_operand_object *obj_desc = NULL;
385 acpi_status status = AE_OK;
386 unsigned i;
387 u16 index;
388 u16 reference_count;
389
390 ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
391
392 /* Find the parent of a possibly nested package */
393
394 parent = op->common.parent;
395 while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
396 (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
397 parent = parent->common.parent;
398 }
399
400 obj_desc = *obj_desc_ptr;
401 if (!obj_desc) {
402 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
403 *obj_desc_ptr = obj_desc;
404 if (!obj_desc) {
405 return_ACPI_STATUS(AE_NO_MEMORY);
406 }
407
408 obj_desc->package.node = parent->common.node;
409 }
410
411 /*
412 * Allocate the element array (array of pointers to the individual
413 * objects) based on the num_elements parameter. Add an extra pointer slot
414 * so that the list is always null terminated.
415 */
416 obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
417 element_count +
418 1) * sizeof(void *));
419
420 if (!obj_desc->package.elements) {
421 acpi_ut_delete_object_desc(obj_desc);
422 return_ACPI_STATUS(AE_NO_MEMORY);
423 }
424
425 obj_desc->package.count = element_count;
426
427 /*
428 * Initialize the elements of the package, up to the num_elements count.
429 * Package is automatically padded with uninitialized (NULL) elements
430 * if num_elements is greater than the package list length. Likewise,
431 * Package is truncated if num_elements is less than the list length.
432 */
433 arg = op->common.value.arg;
434 arg = arg->common.next;
435 for (i = 0; arg && (i < element_count); i++) {
436 if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
437 if (arg->common.node->type == ACPI_TYPE_METHOD) {
438 /*
439 * A method reference "looks" to the parser to be a method
440 * invocation, so we special case it here
441 */
442 arg->common.aml_opcode = AML_INT_NAMEPATH_OP;
443 status =
444 acpi_ds_build_internal_object(walk_state,
445 arg,
446 &obj_desc->
447 package.
448 elements[i]);
449 } else {
450 /* This package element is already built, just get it */
451
452 obj_desc->package.elements[i] =
453 ACPI_CAST_PTR(union acpi_operand_object,
454 arg->common.node);
455 }
456 } else {
457 status = acpi_ds_build_internal_object(walk_state, arg,
458 &obj_desc->
459 package.
460 elements[i]);
461 }
462
463 if (*obj_desc_ptr) {
464
465 /* Existing package, get existing reference count */
466
467 reference_count =
468 (*obj_desc_ptr)->common.reference_count;
469 if (reference_count > 1) {
470
471 /* Make new element ref count match original ref count */
472
473 for (index = 0; index < (reference_count - 1);
474 index++) {
475 acpi_ut_add_reference((obj_desc->
476 package.
477 elements[i]));
478 }
479 }
480 }
481
482 arg = arg->common.next;
483 }
484
485 /* Check for match between num_elements and actual length of package_list */
486
487 if (arg) {
488 /*
489 * num_elements was exhausted, but there are remaining elements in the
490 * package_list. Truncate the package to num_elements.
491 *
492 * Note: technically, this is an error, from ACPI spec: "It is an error
493 * for NumElements to be less than the number of elements in the
494 * PackageList". However, we just print a message and
495 * no exception is returned. This provides Windows compatibility. Some
496 * BIOSs will alter the num_elements on the fly, creating this type
497 * of ill-formed package object.
498 */
499 while (arg) {
500 /*
501 * We must delete any package elements that were created earlier
502 * and are not going to be used because of the package truncation.
503 */
504 if (arg->common.node) {
505 acpi_ut_remove_reference(ACPI_CAST_PTR
506 (union
507 acpi_operand_object,
508 arg->common.node));
509 arg->common.node = NULL;
510 }
511
512 /* Find out how many elements there really are */
513
514 i++;
515 arg = arg->common.next;
516 }
517
518 ACPI_INFO((AE_INFO,
519 "Actual Package length (%u) is larger than NumElements field (%u), truncated\n",
520 i, element_count));
521 } else if (i < element_count) {
522 /*
523 * Arg list (elements) was exhausted, but we did not reach num_elements count.
524 * Note: this is not an error, the package is padded out with NULLs.
525 */
526 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
527 "Package List length (%u) smaller than NumElements count (%u), padded with null elements\n",
528 i, element_count));
529 }
530
531 obj_desc->package.flags |= AOPOBJ_DATA_VALID;
532 op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
533 return_ACPI_STATUS(status);
534 }
535
536 /*******************************************************************************
537 *
538 * FUNCTION: acpi_ds_create_node
539 *
540 * PARAMETERS: walk_state - Current walk state
541 * Node - NS Node to be initialized
542 * Op - Parser object to be translated
543 *
544 * RETURN: Status
545 *
546 * DESCRIPTION: Create the object to be associated with a namespace node
547 *
548 ******************************************************************************/
549
550 acpi_status
551 acpi_ds_create_node(struct acpi_walk_state *walk_state,
552 struct acpi_namespace_node *node,
553 union acpi_parse_object *op)
554 {
555 acpi_status status;
556 union acpi_operand_object *obj_desc;
557
558 ACPI_FUNCTION_TRACE_PTR(ds_create_node, op);
559
560 /*
561 * Because of the execution pass through the non-control-method
562 * parts of the table, we can arrive here twice. Only init
563 * the named object node the first time through
564 */
565 if (acpi_ns_get_attached_object(node)) {
566 return_ACPI_STATUS(AE_OK);
567 }
568
569 if (!op->common.value.arg) {
570
571 /* No arguments, there is nothing to do */
572
573 return_ACPI_STATUS(AE_OK);
574 }
575
576 /* Build an internal object for the argument(s) */
577
578 status = acpi_ds_build_internal_object(walk_state, op->common.value.arg,
579 &obj_desc);
580 if (ACPI_FAILURE(status)) {
581 return_ACPI_STATUS(status);
582 }
583
584 /* Re-type the object according to its argument */
585
586 node->type = obj_desc->common.type;
587
588 /* Attach obj to node */
589
590 status = acpi_ns_attach_object(node, obj_desc, node->type);
591
592 /* Remove local reference to the object */
593
594 acpi_ut_remove_reference(obj_desc);
595 return_ACPI_STATUS(status);
596 }
597
598 #endif /* ACPI_NO_METHOD_EXECUTION */
599
600 /*******************************************************************************
601 *
602 * FUNCTION: acpi_ds_init_object_from_op
603 *
604 * PARAMETERS: walk_state - Current walk state
605 * Op - Parser op used to init the internal object
606 * Opcode - AML opcode associated with the object
607 * ret_obj_desc - Namespace object to be initialized
608 *
609 * RETURN: Status
610 *
611 * DESCRIPTION: Initialize a namespace object from a parser Op and its
612 * associated arguments. The namespace object is a more compact
613 * representation of the Op and its arguments.
614 *
615 ******************************************************************************/
616
617 acpi_status
618 acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
619 union acpi_parse_object *op,
620 u16 opcode,
621 union acpi_operand_object **ret_obj_desc)
622 {
623 const struct acpi_opcode_info *op_info;
624 union acpi_operand_object *obj_desc;
625 acpi_status status = AE_OK;
626
627 ACPI_FUNCTION_TRACE(ds_init_object_from_op);
628
629 obj_desc = *ret_obj_desc;
630 op_info = acpi_ps_get_opcode_info(opcode);
631 if (op_info->class == AML_CLASS_UNKNOWN) {
632
633 /* Unknown opcode */
634
635 return_ACPI_STATUS(AE_TYPE);
636 }
637
638 /* Perform per-object initialization */
639
640 switch (obj_desc->common.type) {
641 case ACPI_TYPE_BUFFER:
642
643 /*
644 * Defer evaluation of Buffer term_arg operand
645 */
646 obj_desc->buffer.node =
647 ACPI_CAST_PTR(struct acpi_namespace_node,
648 walk_state->operands[0]);
649 obj_desc->buffer.aml_start = op->named.data;
650 obj_desc->buffer.aml_length = op->named.length;
651 break;
652
653 case ACPI_TYPE_PACKAGE:
654
655 /*
656 * Defer evaluation of Package term_arg operand
657 */
658 obj_desc->package.node =
659 ACPI_CAST_PTR(struct acpi_namespace_node,
660 walk_state->operands[0]);
661 obj_desc->package.aml_start = op->named.data;
662 obj_desc->package.aml_length = op->named.length;
663 break;
664
665 case ACPI_TYPE_INTEGER:
666
667 switch (op_info->type) {
668 case AML_TYPE_CONSTANT:
669 /*
670 * Resolve AML Constants here - AND ONLY HERE!
671 * All constants are integers.
672 * We mark the integer with a flag that indicates that it started
673 * life as a constant -- so that stores to constants will perform
674 * as expected (noop). zero_op is used as a placeholder for optional
675 * target operands.
676 */
677 obj_desc->common.flags = AOPOBJ_AML_CONSTANT;
678
679 switch (opcode) {
680 case AML_ZERO_OP:
681
682 obj_desc->integer.value = 0;
683 break;
684
685 case AML_ONE_OP:
686
687 obj_desc->integer.value = 1;
688 break;
689
690 case AML_ONES_OP:
691
692 obj_desc->integer.value = ACPI_UINT64_MAX;
693
694 /* Truncate value if we are executing from a 32-bit ACPI table */
695
696 #ifndef ACPI_NO_METHOD_EXECUTION
697 acpi_ex_truncate_for32bit_table(obj_desc);
698 #endif
699 break;
700
701 case AML_REVISION_OP:
702
703 obj_desc->integer.value = ACPI_CA_VERSION;
704 break;
705
706 default:
707
708 ACPI_ERROR((AE_INFO,
709 "Unknown constant opcode 0x%X",
710 opcode));
711 status = AE_AML_OPERAND_TYPE;
712 break;
713 }
714 break;
715
716 case AML_TYPE_LITERAL:
717
718 obj_desc->integer.value = op->common.value.integer;
719 #ifndef ACPI_NO_METHOD_EXECUTION
720 acpi_ex_truncate_for32bit_table(obj_desc);
721 #endif
722 break;
723
724 default:
725 ACPI_ERROR((AE_INFO, "Unknown Integer type 0x%X",
726 op_info->type));
727 status = AE_AML_OPERAND_TYPE;
728 break;
729 }
730 break;
731
732 case ACPI_TYPE_STRING:
733
734 obj_desc->string.pointer = op->common.value.string;
735 obj_desc->string.length =
736 (u32) ACPI_STRLEN(op->common.value.string);
737
738 /*
739 * The string is contained in the ACPI table, don't ever try
740 * to delete it
741 */
742 obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
743 break;
744
745 case ACPI_TYPE_METHOD:
746 break;
747
748 case ACPI_TYPE_LOCAL_REFERENCE:
749
750 switch (op_info->type) {
751 case AML_TYPE_LOCAL_VARIABLE:
752
753 /* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */
754
755 obj_desc->reference.value =
756 ((u32)opcode) - AML_LOCAL_OP;
757 obj_desc->reference.class = ACPI_REFCLASS_LOCAL;
758
759 #ifndef ACPI_NO_METHOD_EXECUTION
760 status =
761 acpi_ds_method_data_get_node(ACPI_REFCLASS_LOCAL,
762 obj_desc->reference.
763 value, walk_state,
764 ACPI_CAST_INDIRECT_PTR
765 (struct
766 acpi_namespace_node,
767 &obj_desc->reference.
768 object));
769 #endif
770 break;
771
772 case AML_TYPE_METHOD_ARGUMENT:
773
774 /* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */
775
776 obj_desc->reference.value = ((u32)opcode) - AML_ARG_OP;
777 obj_desc->reference.class = ACPI_REFCLASS_ARG;
778
779 #ifndef ACPI_NO_METHOD_EXECUTION
780 status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG,
781 obj_desc->
782 reference.value,
783 walk_state,
784 ACPI_CAST_INDIRECT_PTR
785 (struct
786 acpi_namespace_node,
787 &obj_desc->
788 reference.
789 object));
790 #endif
791 break;
792
793 default: /* Object name or Debug object */
794
795 switch (op->common.aml_opcode) {
796 case AML_INT_NAMEPATH_OP:
797
798 /* Node was saved in Op */
799
800 obj_desc->reference.node = op->common.node;
801 obj_desc->reference.object =
802 op->common.node->object;
803 obj_desc->reference.class = ACPI_REFCLASS_NAME;
804 break;
805
806 case AML_DEBUG_OP:
807
808 obj_desc->reference.class = ACPI_REFCLASS_DEBUG;
809 break;
810
811 default:
812
813 ACPI_ERROR((AE_INFO,
814 "Unimplemented reference type for AML opcode: 0x%4.4X",
815 opcode));
816 return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
817 }
818 break;
819 }
820 break;
821
822 default:
823
824 ACPI_ERROR((AE_INFO, "Unimplemented data type: 0x%X",
825 obj_desc->common.type));
826
827 status = AE_AML_OPERAND_TYPE;
828 break;
829 }
830
831 return_ACPI_STATUS(status);
832 }
Tomato firmware and modifications.