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PRCM: 34XX: Fix wrong shift value used in dpll4_m4x2_ck enable bit
[linux-ginger.git] / drivers / acpi / dispatcher / dsobject.c
blob1022e38994c2bffcdd8a52d676e9ecf951cc49f7
1 /******************************************************************************
2 *
3 * Module Name: dsobject - Dispatcher object management routines
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2008, 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 <acpi/acparser.h>
46 #include <acpi/amlcode.h>
47 #include <acpi/acdispat.h>
48 #include <acpi/acnamesp.h>
49 #include <acpi/acinterp.h>
50
51 #define _COMPONENT ACPI_DISPATCHER
52 ACPI_MODULE_NAME("dsobject")
53
54 /* Local prototypes */
55 static acpi_status
56 acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
57 union acpi_parse_object *op,
58 union acpi_operand_object **obj_desc_ptr);
59
60 #ifndef ACPI_NO_METHOD_EXECUTION
61 /*******************************************************************************
62 *
63 * FUNCTION: acpi_ds_build_internal_object
64 *
65 * PARAMETERS: walk_state - Current walk state
66 * Op - Parser object to be translated
67 * obj_desc_ptr - Where the ACPI internal object is returned
68 *
69 * RETURN: Status
70 *
71 * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
72 * Simple objects are any objects other than a package object!
73 *
74 ******************************************************************************/
75
76 static acpi_status
77 acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
78 union acpi_parse_object *op,
79 union acpi_operand_object **obj_desc_ptr)
80 {
81 union acpi_operand_object *obj_desc;
82 acpi_status status;
83
84 ACPI_FUNCTION_TRACE(ds_build_internal_object);
85
86 *obj_desc_ptr = NULL;
87 if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
88 /*
89 * This is a named object reference. If this name was
90 * previously looked up in the namespace, it was stored in this op.
91 * Otherwise, go ahead and look it up now
92 */
93 if (!op->common.node) {
94 status = acpi_ns_lookup(walk_state->scope_info,
95 op->common.value.string,
96 ACPI_TYPE_ANY,
97 ACPI_IMODE_EXECUTE,
98 ACPI_NS_SEARCH_PARENT |
99 ACPI_NS_DONT_OPEN_SCOPE, NULL,
100 ACPI_CAST_INDIRECT_PTR(struct
101 acpi_namespace_node,
102 &(op->
103 common.
104 node)));
105 if (ACPI_FAILURE(status)) {
106
107 /* Check if we are resolving a named reference within a package */
108
109 if ((status == AE_NOT_FOUND)
110 && (acpi_gbl_enable_interpreter_slack)
111 &&
112 ((op->common.parent->common.aml_opcode ==
113 AML_PACKAGE_OP)
114 || (op->common.parent->common.aml_opcode ==
115 AML_VAR_PACKAGE_OP))) {
116 /*
117 * We didn't find the target and we are populating elements
118 * of a package - ignore if slack enabled. Some ASL code
119 * contains dangling invalid references in packages and
120 * expects that no exception will be issued. Leave the
121 * element as a null element. It cannot be used, but it
122 * can be overwritten by subsequent ASL code - this is
123 * typically the case.
124 */
125 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
126 "Ignoring unresolved reference in package [%4.4s]\n",
127 walk_state->
128 scope_info->scope.
129 node->name.ascii));
130
131 return_ACPI_STATUS(AE_OK);
132 } else {
133 ACPI_ERROR_NAMESPACE(op->common.value.
134 string, status);
135 }
136
137 return_ACPI_STATUS(status);
138 }
139 }
140
141 /* Special object resolution for elements of a package */
142
143 if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
144 (op->common.parent->common.aml_opcode ==
145 AML_VAR_PACKAGE_OP)) {
146 /*
147 * Attempt to resolve the node to a value before we insert it into
148 * the package. If this is a reference to a common data type,
149 * resolve it immediately. According to the ACPI spec, package
150 * elements can only be "data objects" or method references.
151 * Attempt to resolve to an Integer, Buffer, String or Package.
152 * If cannot, return the named reference (for things like Devices,
153 * Methods, etc.) Buffer Fields and Fields will resolve to simple
154 * objects (int/buf/str/pkg).
155 *
156 * NOTE: References to things like Devices, Methods, Mutexes, etc.
157 * will remain as named references. This behavior is not described
158 * in the ACPI spec, but it appears to be an oversight.
159 */
160 obj_desc =
161 ACPI_CAST_PTR(union acpi_operand_object,
162 op->common.node);
163
164 status =
165 acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
166 (struct
167 acpi_namespace_node,
168 &obj_desc),
169 walk_state);
170 if (ACPI_FAILURE(status)) {
171 return_ACPI_STATUS(status);
172 }
173
174 switch (op->common.node->type) {
175 /*
176 * For these types, we need the actual node, not the subobject.
177 * However, the subobject did not get an extra reference count above.
178 *
179 * TBD: should ex_resolve_node_to_value be changed to fix this?
180 */
181 case ACPI_TYPE_DEVICE:
182 case ACPI_TYPE_THERMAL:
183
184 acpi_ut_add_reference(op->common.node->object);
185
186 /*lint -fallthrough */
187 /*
188 * For these types, we need the actual node, not the subobject.
189 * The subobject got an extra reference count in ex_resolve_node_to_value.
190 */
191 case ACPI_TYPE_MUTEX:
192 case ACPI_TYPE_METHOD:
193 case ACPI_TYPE_POWER:
194 case ACPI_TYPE_PROCESSOR:
195 case ACPI_TYPE_EVENT:
196 case ACPI_TYPE_REGION:
197
198 /* We will create a reference object for these types below */
199 break;
200
201 default:
202 /*
203 * All other types - the node was resolved to an actual
204 * object, we are done.
205 */
206 goto exit;
207 }
208 }
209 }
210
211 /* Create and init a new internal ACPI object */
212
213 obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info
214 (op->common.aml_opcode))->
215 object_type);
216 if (!obj_desc) {
217 return_ACPI_STATUS(AE_NO_MEMORY);
218 }
219
220 status =
221 acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode,
222 &obj_desc);
223 if (ACPI_FAILURE(status)) {
224 acpi_ut_remove_reference(obj_desc);
225 return_ACPI_STATUS(status);
226 }
227
228 exit:
229 *obj_desc_ptr = obj_desc;
230 return_ACPI_STATUS(status);
231 }
232
233 /*******************************************************************************
234 *
235 * FUNCTION: acpi_ds_build_internal_buffer_obj
236 *
237 * PARAMETERS: walk_state - Current walk state
238 * Op - Parser object to be translated
239 * buffer_length - Length of the buffer
240 * obj_desc_ptr - Where the ACPI internal object is returned
241 *
242 * RETURN: Status
243 *
244 * DESCRIPTION: Translate a parser Op package object to the equivalent
245 * namespace object
246 *
247 ******************************************************************************/
248
249 acpi_status
250 acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
251 union acpi_parse_object *op,
252 u32 buffer_length,
253 union acpi_operand_object **obj_desc_ptr)
254 {
255 union acpi_parse_object *arg;
256 union acpi_operand_object *obj_desc;
257 union acpi_parse_object *byte_list;
258 u32 byte_list_length = 0;
259
260 ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj);
261
262 /*
263 * If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
264 * The buffer object already exists (from the NS node), otherwise it must
265 * be created.
266 */
267 obj_desc = *obj_desc_ptr;
268 if (!obj_desc) {
269
270 /* Create a new buffer object */
271
272 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
273 *obj_desc_ptr = obj_desc;
274 if (!obj_desc) {
275 return_ACPI_STATUS(AE_NO_MEMORY);
276 }
277 }
278
279 /*
280 * Second arg is the buffer data (optional) byte_list can be either
281 * individual bytes or a string initializer. In either case, a
282 * byte_list appears in the AML.
283 */
284 arg = op->common.value.arg; /* skip first arg */
285
286 byte_list = arg->named.next;
287 if (byte_list) {
288 if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) {
289 ACPI_ERROR((AE_INFO,
290 "Expecting bytelist, got AML opcode %X in op %p",
291 byte_list->common.aml_opcode, byte_list));
292
293 acpi_ut_remove_reference(obj_desc);
294 return (AE_TYPE);
295 }
296
297 byte_list_length = (u32) byte_list->common.value.integer;
298 }
299
300 /*
301 * The buffer length (number of bytes) will be the larger of:
302 * 1) The specified buffer length and
303 * 2) The length of the initializer byte list
304 */
305 obj_desc->buffer.length = buffer_length;
306 if (byte_list_length > buffer_length) {
307 obj_desc->buffer.length = byte_list_length;
308 }
309
310 /* Allocate the buffer */
311
312 if (obj_desc->buffer.length == 0) {
313 obj_desc->buffer.pointer = NULL;
314 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
315 "Buffer defined with zero length in AML, creating\n"));
316 } else {
317 obj_desc->buffer.pointer =
318 ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length);
319 if (!obj_desc->buffer.pointer) {
320 acpi_ut_delete_object_desc(obj_desc);
321 return_ACPI_STATUS(AE_NO_MEMORY);
322 }
323
324 /* Initialize buffer from the byte_list (if present) */
325
326 if (byte_list) {
327 ACPI_MEMCPY(obj_desc->buffer.pointer,
328 byte_list->named.data, byte_list_length);
329 }
330 }
331
332 obj_desc->buffer.flags |= AOPOBJ_DATA_VALID;
333 op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
334 return_ACPI_STATUS(AE_OK);
335 }
336
337 /*******************************************************************************
338 *
339 * FUNCTION: acpi_ds_build_internal_package_obj
340 *
341 * PARAMETERS: walk_state - Current walk state
342 * Op - Parser object to be translated
343 * element_count - Number of elements in the package - this is
344 * the num_elements argument to Package()
345 * obj_desc_ptr - Where the ACPI internal object is returned
346 *
347 * RETURN: Status
348 *
349 * DESCRIPTION: Translate a parser Op package object to the equivalent
350 * namespace object
351 *
352 * NOTE: The number of elements in the package will be always be the num_elements
353 * count, regardless of the number of elements in the package list. If
354 * num_elements is smaller, only that many package list elements are used.
355 * if num_elements is larger, the Package object is padded out with
356 * objects of type Uninitialized (as per ACPI spec.)
357 *
358 * Even though the ASL compilers do not allow num_elements to be smaller
359 * than the Package list length (for the fixed length package opcode), some
360 * BIOS code modifies the AML on the fly to adjust the num_elements, and
361 * this code compensates for that. This also provides compatibility with
362 * other AML interpreters.
363 *
364 ******************************************************************************/
365
366 acpi_status
367 acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
368 union acpi_parse_object *op,
369 u32 element_count,
370 union acpi_operand_object **obj_desc_ptr)
371 {
372 union acpi_parse_object *arg;
373 union acpi_parse_object *parent;
374 union acpi_operand_object *obj_desc = NULL;
375 acpi_status status = AE_OK;
376 unsigned i;
377 u16 index;
378 u16 reference_count;
379
380 ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
381
382 /* Find the parent of a possibly nested package */
383
384 parent = op->common.parent;
385 while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
386 (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
387 parent = parent->common.parent;
388 }
389
390 /*
391 * If we are evaluating a Named package object "Name (xxxx, Package)",
392 * the package object already exists, otherwise it must be created.
393 */
394 obj_desc = *obj_desc_ptr;
395 if (!obj_desc) {
396 obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
397 *obj_desc_ptr = obj_desc;
398 if (!obj_desc) {
399 return_ACPI_STATUS(AE_NO_MEMORY);
400 }
401
402 obj_desc->package.node = parent->common.node;
403 }
404
405 /*
406 * Allocate the element array (array of pointers to the individual
407 * objects) based on the num_elements parameter. Add an extra pointer slot
408 * so that the list is always null terminated.
409 */
410 obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
411 element_count +
412 1) * sizeof(void *));
413
414 if (!obj_desc->package.elements) {
415 acpi_ut_delete_object_desc(obj_desc);
416 return_ACPI_STATUS(AE_NO_MEMORY);
417 }
418
419 obj_desc->package.count = element_count;
420
421 /*
422 * Initialize the elements of the package, up to the num_elements count.
423 * Package is automatically padded with uninitialized (NULL) elements
424 * if num_elements is greater than the package list length. Likewise,
425 * Package is truncated if num_elements is less than the list length.
426 */
427 arg = op->common.value.arg;
428 arg = arg->common.next;
429 for (i = 0; arg && (i < element_count); i++) {
430 if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
431 if (arg->common.node->type == ACPI_TYPE_METHOD) {
432 /*
433 * A method reference "looks" to the parser to be a method
434 * invocation, so we special case it here
435 */
436 arg->common.aml_opcode = AML_INT_NAMEPATH_OP;
437 status =
438 acpi_ds_build_internal_object(walk_state,
439 arg,
440 &obj_desc->
441 package.
442 elements[i]);
443 } else {
444 /* This package element is already built, just get it */
445
446 obj_desc->package.elements[i] =
447 ACPI_CAST_PTR(union acpi_operand_object,
448 arg->common.node);
449 }
450 } else {
451 status = acpi_ds_build_internal_object(walk_state, arg,
452 &obj_desc->
453 package.
454 elements[i]);
455 }
456
457 if (*obj_desc_ptr) {
458
459 /* Existing package, get existing reference count */
460
461 reference_count =
462 (*obj_desc_ptr)->common.reference_count;
463 if (reference_count > 1) {
464
465 /* Make new element ref count match original ref count */
466
467 for (index = 0; index < (reference_count - 1);
468 index++) {
469 acpi_ut_add_reference((obj_desc->
470 package.
471 elements[i]));
472 }
473 }
474 }
475
476 arg = arg->common.next;
477 }
478
479 /* Check for match between num_elements and actual length of package_list */
480
481 if (arg) {
482 /*
483 * num_elements was exhausted, but there are remaining elements in the
484 * package_list.
485 *
486 * Note: technically, this is an error, from ACPI spec: "It is an error
487 * for NumElements to be less than the number of elements in the
488 * PackageList". However, for now, we just print an error message and
489 * no exception is returned.
490 */
491 while (arg) {
492
493 /* Find out how many elements there really are */
494
495 i++;
496 arg = arg->common.next;
497 }
498
499 ACPI_ERROR((AE_INFO,
500 "Package List length (%X) larger than NumElements count (%X), truncated\n",
501 i, element_count));
502 } else if (i < element_count) {
503 /*
504 * Arg list (elements) was exhausted, but we did not reach num_elements count.
505 * Note: this is not an error, the package is padded out with NULLs.
506 */
507 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
508 "Package List length (%X) smaller than NumElements count (%X), padded with null elements\n",
509 i, element_count));
510 }
511
512 obj_desc->package.flags |= AOPOBJ_DATA_VALID;
513 op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
514 return_ACPI_STATUS(status);
515 }
516
517 /*******************************************************************************
518 *
519 * FUNCTION: acpi_ds_create_node
520 *
521 * PARAMETERS: walk_state - Current walk state
522 * Node - NS Node to be initialized
523 * Op - Parser object to be translated
524 *
525 * RETURN: Status
526 *
527 * DESCRIPTION: Create the object to be associated with a namespace node
528 *
529 ******************************************************************************/
530
531 acpi_status
532 acpi_ds_create_node(struct acpi_walk_state *walk_state,
533 struct acpi_namespace_node *node,
534 union acpi_parse_object *op)
535 {
536 acpi_status status;
537 union acpi_operand_object *obj_desc;
538
539 ACPI_FUNCTION_TRACE_PTR(ds_create_node, op);
540
541 /*
542 * Because of the execution pass through the non-control-method
543 * parts of the table, we can arrive here twice. Only init
544 * the named object node the first time through
545 */
546 if (acpi_ns_get_attached_object(node)) {
547 return_ACPI_STATUS(AE_OK);
548 }
549
550 if (!op->common.value.arg) {
551
552 /* No arguments, there is nothing to do */
553
554 return_ACPI_STATUS(AE_OK);
555 }
556
557 /* Build an internal object for the argument(s) */
558
559 status = acpi_ds_build_internal_object(walk_state, op->common.value.arg,
560 &obj_desc);
561 if (ACPI_FAILURE(status)) {
562 return_ACPI_STATUS(status);
563 }
564
565 /* Re-type the object according to its argument */
566
567 node->type = ACPI_GET_OBJECT_TYPE(obj_desc);
568
569 /* Attach obj to node */
570
571 status = acpi_ns_attach_object(node, obj_desc, node->type);
572
573 /* Remove local reference to the object */
574
575 acpi_ut_remove_reference(obj_desc);
576 return_ACPI_STATUS(status);
577 }
578
579 #endif /* ACPI_NO_METHOD_EXECUTION */
580
581 /*******************************************************************************
582 *
583 * FUNCTION: acpi_ds_init_object_from_op
584 *
585 * PARAMETERS: walk_state - Current walk state
586 * Op - Parser op used to init the internal object
587 * Opcode - AML opcode associated with the object
588 * ret_obj_desc - Namespace object to be initialized
589 *
590 * RETURN: Status
591 *
592 * DESCRIPTION: Initialize a namespace object from a parser Op and its
593 * associated arguments. The namespace object is a more compact
594 * representation of the Op and its arguments.
595 *
596 ******************************************************************************/
597
598 acpi_status
599 acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
600 union acpi_parse_object *op,
601 u16 opcode,
602 union acpi_operand_object **ret_obj_desc)
603 {
604 const struct acpi_opcode_info *op_info;
605 union acpi_operand_object *obj_desc;
606 acpi_status status = AE_OK;
607
608 ACPI_FUNCTION_TRACE(ds_init_object_from_op);
609
610 obj_desc = *ret_obj_desc;
611 op_info = acpi_ps_get_opcode_info(opcode);
612 if (op_info->class == AML_CLASS_UNKNOWN) {
613
614 /* Unknown opcode */
615
616 return_ACPI_STATUS(AE_TYPE);
617 }
618
619 /* Perform per-object initialization */
620
621 switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
622 case ACPI_TYPE_BUFFER:
623
624 /*
625 * Defer evaluation of Buffer term_arg operand
626 */
627 obj_desc->buffer.node =
628 ACPI_CAST_PTR(struct acpi_namespace_node,
629 walk_state->operands[0]);
630 obj_desc->buffer.aml_start = op->named.data;
631 obj_desc->buffer.aml_length = op->named.length;
632 break;
633
634 case ACPI_TYPE_PACKAGE:
635
636 /*
637 * Defer evaluation of Package term_arg operand
638 */
639 obj_desc->package.node =
640 ACPI_CAST_PTR(struct acpi_namespace_node,
641 walk_state->operands[0]);
642 obj_desc->package.aml_start = op->named.data;
643 obj_desc->package.aml_length = op->named.length;
644 break;
645
646 case ACPI_TYPE_INTEGER:
647
648 switch (op_info->type) {
649 case AML_TYPE_CONSTANT:
650 /*
651 * Resolve AML Constants here - AND ONLY HERE!
652 * All constants are integers.
653 * We mark the integer with a flag that indicates that it started
654 * life as a constant -- so that stores to constants will perform
655 * as expected (noop). zero_op is used as a placeholder for optional
656 * target operands.
657 */
658 obj_desc->common.flags = AOPOBJ_AML_CONSTANT;
659
660 switch (opcode) {
661 case AML_ZERO_OP:
662
663 obj_desc->integer.value = 0;
664 break;
665
666 case AML_ONE_OP:
667
668 obj_desc->integer.value = 1;
669 break;
670
671 case AML_ONES_OP:
672
673 obj_desc->integer.value = ACPI_INTEGER_MAX;
674
675 /* Truncate value if we are executing from a 32-bit ACPI table */
676
677 #ifndef ACPI_NO_METHOD_EXECUTION
678 acpi_ex_truncate_for32bit_table(obj_desc);
679 #endif
680 break;
681
682 case AML_REVISION_OP:
683
684 obj_desc->integer.value = ACPI_CA_VERSION;
685 break;
686
687 default:
688
689 ACPI_ERROR((AE_INFO,
690 "Unknown constant opcode %X",
691 opcode));
692 status = AE_AML_OPERAND_TYPE;
693 break;
694 }
695 break;
696
697 case AML_TYPE_LITERAL:
698
699 obj_desc->integer.value = op->common.value.integer;
700 #ifndef ACPI_NO_METHOD_EXECUTION
701 acpi_ex_truncate_for32bit_table(obj_desc);
702 #endif
703 break;
704
705 default:
706 ACPI_ERROR((AE_INFO, "Unknown Integer type %X",
707 op_info->type));
708 status = AE_AML_OPERAND_TYPE;
709 break;
710 }
711 break;
712
713 case ACPI_TYPE_STRING:
714
715 obj_desc->string.pointer = op->common.value.string;
716 obj_desc->string.length =
717 (u32) ACPI_STRLEN(op->common.value.string);
718
719 /*
720 * The string is contained in the ACPI table, don't ever try
721 * to delete it
722 */
723 obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
724 break;
725
726 case ACPI_TYPE_METHOD:
727 break;
728
729 case ACPI_TYPE_LOCAL_REFERENCE:
730
731 switch (op_info->type) {
732 case AML_TYPE_LOCAL_VARIABLE:
733
734 /* Split the opcode into a base opcode + offset */
735
736 obj_desc->reference.opcode = AML_LOCAL_OP;
737 obj_desc->reference.offset = opcode - AML_LOCAL_OP;
738
739 #ifndef ACPI_NO_METHOD_EXECUTION
740 status = acpi_ds_method_data_get_node(AML_LOCAL_OP,
741 obj_desc->
742 reference.offset,
743 walk_state,
744 (struct
745 acpi_namespace_node
746 **)&obj_desc->
747 reference.object);
748 #endif
749 break;
750
751 case AML_TYPE_METHOD_ARGUMENT:
752
753 /* Split the opcode into a base opcode + offset */
754
755 obj_desc->reference.opcode = AML_ARG_OP;
756 obj_desc->reference.offset = opcode - AML_ARG_OP;
757
758 #ifndef ACPI_NO_METHOD_EXECUTION
759 status = acpi_ds_method_data_get_node(AML_ARG_OP,
760 obj_desc->
761 reference.offset,
762 walk_state,
763 (struct
764 acpi_namespace_node
765 **)&obj_desc->
766 reference.object);
767 #endif
768 break;
769
770 default: /* Other literals, etc.. */
771
772 if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
773
774 /* Node was saved in Op */
775
776 obj_desc->reference.node = op->common.node;
777 obj_desc->reference.object =
778 op->common.node->object;
779 }
780
781 obj_desc->reference.opcode = opcode;
782 break;
783 }
784 break;
785
786 default:
787
788 ACPI_ERROR((AE_INFO, "Unimplemented data type: %X",
789 ACPI_GET_OBJECT_TYPE(obj_desc)));
790
791 status = AE_AML_OPERAND_TYPE;
792 break;
793 }
794
795 return_ACPI_STATUS(status);
796 }
Linux for Ginger Game Console