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authorLen Brown <len.brown@intel.com>2009-01-09 00:13:17 -0500
committerLen Brown <len.brown@intel.com>2009-01-09 03:30:47 -0500
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/utilities/utcopy.c
parent6620e0c49f577454b772fb381543d60ae53eb885 (diff)
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/utilities/utcopy.c')
-rw-r--r--drivers/acpi/utilities/utcopy.c970
1 files changed, 0 insertions, 970 deletions
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c
deleted file mode 100644
index e6f3002312e5..000000000000
--- a/drivers/acpi/utilities/utcopy.c
+++ /dev/null
@@ -1,970 +0,0 @@
1/******************************************************************************
2 *
3 * Module Name: utcopy - Internal to external object translation utilities
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/accommon.h>
46#include <acpi/acnamesp.h>
47
48
49#define _COMPONENT ACPI_UTILITIES
50ACPI_MODULE_NAME("utcopy")
51
52/* Local prototypes */
53static acpi_status
54acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
55 union acpi_object *external_object,
56 u8 * data_space, acpi_size * buffer_space_used);
57
58static acpi_status
59acpi_ut_copy_ielement_to_ielement(u8 object_type,
60 union acpi_operand_object *source_object,
61 union acpi_generic_state *state,
62 void *context);
63
64static acpi_status
65acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
66 u8 * buffer, acpi_size * space_used);
67
68static acpi_status
69acpi_ut_copy_esimple_to_isimple(union acpi_object *user_obj,
70 union acpi_operand_object **return_obj);
71
72static acpi_status
73acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
74 union acpi_operand_object **internal_object);
75
76static acpi_status
77acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
78 union acpi_operand_object *dest_desc);
79
80static acpi_status
81acpi_ut_copy_ielement_to_eelement(u8 object_type,
82 union acpi_operand_object *source_object,
83 union acpi_generic_state *state,
84 void *context);
85
86static acpi_status
87acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
88 union acpi_operand_object *dest_obj,
89 struct acpi_walk_state *walk_state);
90
91/*******************************************************************************
92 *
93 * FUNCTION: acpi_ut_copy_isimple_to_esimple
94 *
95 * PARAMETERS: internal_object - Source object to be copied
96 * external_object - Where to return the copied object
97 * data_space - Where object data is returned (such as
98 * buffer and string data)
99 * buffer_space_used - Length of data_space that was used
100 *
101 * RETURN: Status
102 *
103 * DESCRIPTION: This function is called to copy a simple internal object to
104 * an external object.
105 *
106 * The data_space buffer is assumed to have sufficient space for
107 * the object.
108 *
109 ******************************************************************************/
110
111static acpi_status
112acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
113 union acpi_object *external_object,
114 u8 * data_space, acpi_size * buffer_space_used)
115{
116 acpi_status status = AE_OK;
117
118 ACPI_FUNCTION_TRACE(ut_copy_isimple_to_esimple);
119
120 *buffer_space_used = 0;
121
122 /*
123 * Check for NULL object case (could be an uninitialized
124 * package element)
125 */
126 if (!internal_object) {
127 return_ACPI_STATUS(AE_OK);
128 }
129
130 /* Always clear the external object */
131
132 ACPI_MEMSET(external_object, 0, sizeof(union acpi_object));
133
134 /*
135 * In general, the external object will be the same type as
136 * the internal object
137 */
138 external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
139
140 /* However, only a limited number of external types are supported */
141
142 switch (ACPI_GET_OBJECT_TYPE(internal_object)) {
143 case ACPI_TYPE_STRING:
144
145 external_object->string.pointer = (char *)data_space;
146 external_object->string.length = internal_object->string.length;
147 *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size)
148 internal_object->
149 string.
150 length + 1);
151
152 ACPI_MEMCPY((void *)data_space,
153 (void *)internal_object->string.pointer,
154 (acpi_size) internal_object->string.length + 1);
155 break;
156
157 case ACPI_TYPE_BUFFER:
158
159 external_object->buffer.pointer = data_space;
160 external_object->buffer.length = internal_object->buffer.length;
161 *buffer_space_used =
162 ACPI_ROUND_UP_TO_NATIVE_WORD(internal_object->string.
163 length);
164
165 ACPI_MEMCPY((void *)data_space,
166 (void *)internal_object->buffer.pointer,
167 internal_object->buffer.length);
168 break;
169
170 case ACPI_TYPE_INTEGER:
171
172 external_object->integer.value = internal_object->integer.value;
173 break;
174
175 case ACPI_TYPE_LOCAL_REFERENCE:
176
177 /* This is an object reference. */
178
179 switch (internal_object->reference.class) {
180 case ACPI_REFCLASS_NAME:
181
182 /*
183 * For namepath, return the object handle ("reference")
184 * We are referring to the namespace node
185 */
186 external_object->reference.handle =
187 internal_object->reference.node;
188 external_object->reference.actual_type =
189 acpi_ns_get_type(internal_object->reference.node);
190 break;
191
192 default:
193
194 /* All other reference types are unsupported */
195
196 return_ACPI_STATUS(AE_TYPE);
197 }
198 break;
199
200 case ACPI_TYPE_PROCESSOR:
201
202 external_object->processor.proc_id =
203 internal_object->processor.proc_id;
204 external_object->processor.pblk_address =
205 internal_object->processor.address;
206 external_object->processor.pblk_length =
207 internal_object->processor.length;
208 break;
209
210 case ACPI_TYPE_POWER:
211
212 external_object->power_resource.system_level =
213 internal_object->power_resource.system_level;
214
215 external_object->power_resource.resource_order =
216 internal_object->power_resource.resource_order;
217 break;
218
219 default:
220 /*
221 * There is no corresponding external object type
222 */
223 ACPI_ERROR((AE_INFO,
224 "Unsupported object type, cannot convert to external object: %s",
225 acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE
226 (internal_object))));
227
228 return_ACPI_STATUS(AE_SUPPORT);
229 }
230
231 return_ACPI_STATUS(status);
232}
233
234/*******************************************************************************
235 *
236 * FUNCTION: acpi_ut_copy_ielement_to_eelement
237 *
238 * PARAMETERS: acpi_pkg_callback
239 *
240 * RETURN: Status
241 *
242 * DESCRIPTION: Copy one package element to another package element
243 *
244 ******************************************************************************/
245
246static acpi_status
247acpi_ut_copy_ielement_to_eelement(u8 object_type,
248 union acpi_operand_object *source_object,
249 union acpi_generic_state *state,
250 void *context)
251{
252 acpi_status status = AE_OK;
253 struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
254 acpi_size object_space;
255 u32 this_index;
256 union acpi_object *target_object;
257
258 ACPI_FUNCTION_ENTRY();
259
260 this_index = state->pkg.index;
261 target_object = (union acpi_object *)
262 &((union acpi_object *)(state->pkg.dest_object))->package.
263 elements[this_index];
264
265 switch (object_type) {
266 case ACPI_COPY_TYPE_SIMPLE:
267
268 /*
269 * This is a simple or null object
270 */
271 status = acpi_ut_copy_isimple_to_esimple(source_object,
272 target_object,
273 info->free_space,
274 &object_space);
275 if (ACPI_FAILURE(status)) {
276 return (status);
277 }
278 break;
279
280 case ACPI_COPY_TYPE_PACKAGE:
281
282 /*
283 * Build the package object
284 */
285 target_object->type = ACPI_TYPE_PACKAGE;
286 target_object->package.count = source_object->package.count;
287 target_object->package.elements =
288 ACPI_CAST_PTR(union acpi_object, info->free_space);
289
290 /*
291 * Pass the new package object back to the package walk routine
292 */
293 state->pkg.this_target_obj = target_object;
294
295 /*
296 * Save space for the array of objects (Package elements)
297 * update the buffer length counter
298 */
299 object_space = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size)
300 target_object->
301 package.count *
302 sizeof(union
303 acpi_object));
304 break;
305
306 default:
307 return (AE_BAD_PARAMETER);
308 }
309
310 info->free_space += object_space;
311 info->length += object_space;
312 return (status);
313}
314
315/*******************************************************************************
316 *
317 * FUNCTION: acpi_ut_copy_ipackage_to_epackage
318 *
319 * PARAMETERS: internal_object - Pointer to the object we are returning
320 * Buffer - Where the object is returned
321 * space_used - Where the object length is returned
322 *
323 * RETURN: Status
324 *
325 * DESCRIPTION: This function is called to place a package object in a user
326 * buffer. A package object by definition contains other objects.
327 *
328 * The buffer is assumed to have sufficient space for the object.
329 * The caller must have verified the buffer length needed using the
330 * acpi_ut_get_object_size function before calling this function.
331 *
332 ******************************************************************************/
333
334static acpi_status
335acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
336 u8 * buffer, acpi_size * space_used)
337{
338 union acpi_object *external_object;
339 acpi_status status;
340 struct acpi_pkg_info info;
341
342 ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_epackage);
343
344 /*
345 * First package at head of the buffer
346 */
347 external_object = ACPI_CAST_PTR(union acpi_object, buffer);
348
349 /*
350 * Free space begins right after the first package
351 */
352 info.length = ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
353 info.free_space =
354 buffer + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
355 info.object_space = 0;
356 info.num_packages = 1;
357
358 external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
359 external_object->package.count = internal_object->package.count;
360 external_object->package.elements = ACPI_CAST_PTR(union acpi_object,
361 info.free_space);
362
363 /*
364 * Leave room for an array of ACPI_OBJECTS in the buffer
365 * and move the free space past it
366 */
367 info.length += (acpi_size) external_object->package.count *
368 ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
369 info.free_space += external_object->package.count *
370 ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
371
372 status = acpi_ut_walk_package_tree(internal_object, external_object,
373 acpi_ut_copy_ielement_to_eelement,
374 &info);
375
376 *space_used = info.length;
377 return_ACPI_STATUS(status);
378}
379
380/*******************************************************************************
381 *
382 * FUNCTION: acpi_ut_copy_iobject_to_eobject
383 *
384 * PARAMETERS: internal_object - The internal object to be converted
385 * buffer_ptr - Where the object is returned
386 *
387 * RETURN: Status
388 *
389 * DESCRIPTION: This function is called to build an API object to be returned to
390 * the caller.
391 *
392 ******************************************************************************/
393
394acpi_status
395acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object,
396 struct acpi_buffer *ret_buffer)
397{
398 acpi_status status;
399
400 ACPI_FUNCTION_TRACE(ut_copy_iobject_to_eobject);
401
402 if (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE) {
403 /*
404 * Package object: Copy all subobjects (including
405 * nested packages)
406 */
407 status = acpi_ut_copy_ipackage_to_epackage(internal_object,
408 ret_buffer->pointer,
409 &ret_buffer->length);
410 } else {
411 /*
412 * Build a simple object (no nested objects)
413 */
414 status = acpi_ut_copy_isimple_to_esimple(internal_object,
415 ACPI_CAST_PTR(union
416 acpi_object,
417 ret_buffer->
418 pointer),
419 ACPI_ADD_PTR(u8,
420 ret_buffer->
421 pointer,
422 ACPI_ROUND_UP_TO_NATIVE_WORD
423 (sizeof
424 (union
425 acpi_object))),
426 &ret_buffer->length);
427 /*
428 * build simple does not include the object size in the length
429 * so we add it in here
430 */
431 ret_buffer->length += sizeof(union acpi_object);
432 }
433
434 return_ACPI_STATUS(status);
435}
436
437/*******************************************************************************
438 *
439 * FUNCTION: acpi_ut_copy_esimple_to_isimple
440 *
441 * PARAMETERS: external_object - The external object to be converted
442 * ret_internal_object - Where the internal object is returned
443 *
444 * RETURN: Status
445 *
446 * DESCRIPTION: This function copies an external object to an internal one.
447 * NOTE: Pointers can be copied, we don't need to copy data.
448 * (The pointers have to be valid in our address space no matter
449 * what we do with them!)
450 *
451 ******************************************************************************/
452
453static acpi_status
454acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
455 union acpi_operand_object **ret_internal_object)
456{
457 union acpi_operand_object *internal_object;
458
459 ACPI_FUNCTION_TRACE(ut_copy_esimple_to_isimple);
460
461 /*
462 * Simple types supported are: String, Buffer, Integer
463 */
464 switch (external_object->type) {
465 case ACPI_TYPE_STRING:
466 case ACPI_TYPE_BUFFER:
467 case ACPI_TYPE_INTEGER:
468 case ACPI_TYPE_LOCAL_REFERENCE:
469
470 internal_object = acpi_ut_create_internal_object((u8)
471 external_object->
472 type);
473 if (!internal_object) {
474 return_ACPI_STATUS(AE_NO_MEMORY);
475 }
476 break;
477
478 case ACPI_TYPE_ANY: /* This is the case for a NULL object */
479
480 *ret_internal_object = NULL;
481 return_ACPI_STATUS(AE_OK);
482
483 default:
484 /* All other types are not supported */
485
486 ACPI_ERROR((AE_INFO,
487 "Unsupported object type, cannot convert to internal object: %s",
488 acpi_ut_get_type_name(external_object->type)));
489
490 return_ACPI_STATUS(AE_SUPPORT);
491 }
492
493 /* Must COPY string and buffer contents */
494
495 switch (external_object->type) {
496 case ACPI_TYPE_STRING:
497
498 internal_object->string.pointer =
499 ACPI_ALLOCATE_ZEROED((acpi_size) external_object->string.
500 length + 1);
501 if (!internal_object->string.pointer) {
502 goto error_exit;
503 }
504
505 ACPI_MEMCPY(internal_object->string.pointer,
506 external_object->string.pointer,
507 external_object->string.length);
508
509 internal_object->string.length = external_object->string.length;
510 break;
511
512 case ACPI_TYPE_BUFFER:
513
514 internal_object->buffer.pointer =
515 ACPI_ALLOCATE_ZEROED(external_object->buffer.length);
516 if (!internal_object->buffer.pointer) {
517 goto error_exit;
518 }
519
520 ACPI_MEMCPY(internal_object->buffer.pointer,
521 external_object->buffer.pointer,
522 external_object->buffer.length);
523
524 internal_object->buffer.length = external_object->buffer.length;
525
526 /* Mark buffer data valid */
527
528 internal_object->buffer.flags |= AOPOBJ_DATA_VALID;
529 break;
530
531 case ACPI_TYPE_INTEGER:
532
533 internal_object->integer.value = external_object->integer.value;
534 break;
535
536 case ACPI_TYPE_LOCAL_REFERENCE:
537
538 /* TBD: should validate incoming handle */
539
540 internal_object->reference.class = ACPI_REFCLASS_NAME;
541 internal_object->reference.node =
542 external_object->reference.handle;
543 break;
544
545 default:
546 /* Other types can't get here */
547 break;
548 }
549
550 *ret_internal_object = internal_object;
551 return_ACPI_STATUS(AE_OK);
552
553 error_exit:
554 acpi_ut_remove_reference(internal_object);
555 return_ACPI_STATUS(AE_NO_MEMORY);
556}
557
558/*******************************************************************************
559 *
560 * FUNCTION: acpi_ut_copy_epackage_to_ipackage
561 *
562 * PARAMETERS: external_object - The external object to be converted
563 * internal_object - Where the internal object is returned
564 *
565 * RETURN: Status
566 *
567 * DESCRIPTION: Copy an external package object to an internal package.
568 * Handles nested packages.
569 *
570 ******************************************************************************/
571
572static acpi_status
573acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
574 union acpi_operand_object **internal_object)
575{
576 acpi_status status = AE_OK;
577 union acpi_operand_object *package_object;
578 union acpi_operand_object **package_elements;
579 u32 i;
580
581 ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage);
582
583 /* Create the package object */
584
585 package_object =
586 acpi_ut_create_package_object(external_object->package.count);
587 if (!package_object) {
588 return_ACPI_STATUS(AE_NO_MEMORY);
589 }
590
591 package_elements = package_object->package.elements;
592
593 /*
594 * Recursive implementation. Probably ok, since nested external packages
595 * as parameters should be very rare.
596 */
597 for (i = 0; i < external_object->package.count; i++) {
598 status =
599 acpi_ut_copy_eobject_to_iobject(&external_object->package.
600 elements[i],
601 &package_elements[i]);
602 if (ACPI_FAILURE(status)) {
603
604 /* Truncate package and delete it */
605
606 package_object->package.count = i;
607 package_elements[i] = NULL;
608 acpi_ut_remove_reference(package_object);
609 return_ACPI_STATUS(status);
610 }
611 }
612
613 /* Mark package data valid */
614
615 package_object->package.flags |= AOPOBJ_DATA_VALID;
616
617 *internal_object = package_object;
618 return_ACPI_STATUS(status);
619}
620
621/*******************************************************************************
622 *
623 * FUNCTION: acpi_ut_copy_eobject_to_iobject
624 *
625 * PARAMETERS: external_object - The external object to be converted
626 * internal_object - Where the internal object is returned
627 *
628 * RETURN: Status - the status of the call
629 *
630 * DESCRIPTION: Converts an external object to an internal object.
631 *
632 ******************************************************************************/
633
634acpi_status
635acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object,
636 union acpi_operand_object **internal_object)
637{
638 acpi_status status;
639
640 ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject);
641
642 if (external_object->type == ACPI_TYPE_PACKAGE) {
643 status =
644 acpi_ut_copy_epackage_to_ipackage(external_object,
645 internal_object);
646 } else {
647 /*
648 * Build a simple object (no nested objects)
649 */
650 status =
651 acpi_ut_copy_esimple_to_isimple(external_object,
652 internal_object);
653 }
654
655 return_ACPI_STATUS(status);
656}
657
658/*******************************************************************************
659 *
660 * FUNCTION: acpi_ut_copy_simple_object
661 *
662 * PARAMETERS: source_desc - The internal object to be copied
663 * dest_desc - New target object
664 *
665 * RETURN: Status
666 *
667 * DESCRIPTION: Simple copy of one internal object to another. Reference count
668 * of the destination object is preserved.
669 *
670 ******************************************************************************/
671
672static acpi_status
673acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
674 union acpi_operand_object *dest_desc)
675{
676 u16 reference_count;
677 union acpi_operand_object *next_object;
678
679 /* Save fields from destination that we don't want to overwrite */
680
681 reference_count = dest_desc->common.reference_count;
682 next_object = dest_desc->common.next_object;
683
684 /* Copy the entire source object over the destination object */
685
686 ACPI_MEMCPY((char *)dest_desc, (char *)source_desc,
687 sizeof(union acpi_operand_object));
688
689 /* Restore the saved fields */
690
691 dest_desc->common.reference_count = reference_count;
692 dest_desc->common.next_object = next_object;
693
694 /* New object is not static, regardless of source */
695
696 dest_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
697
698 /* Handle the objects with extra data */
699
700 switch (ACPI_GET_OBJECT_TYPE(dest_desc)) {
701 case ACPI_TYPE_BUFFER:
702 /*
703 * Allocate and copy the actual buffer if and only if:
704 * 1) There is a valid buffer pointer
705 * 2) The buffer has a length > 0
706 */
707 if ((source_desc->buffer.pointer) &&
708 (source_desc->buffer.length)) {
709 dest_desc->buffer.pointer =
710 ACPI_ALLOCATE(source_desc->buffer.length);
711 if (!dest_desc->buffer.pointer) {
712 return (AE_NO_MEMORY);
713 }
714
715 /* Copy the actual buffer data */
716
717 ACPI_MEMCPY(dest_desc->buffer.pointer,
718 source_desc->buffer.pointer,
719 source_desc->buffer.length);
720 }
721 break;
722
723 case ACPI_TYPE_STRING:
724 /*
725 * Allocate and copy the actual string if and only if:
726 * 1) There is a valid string pointer
727 * (Pointer to a NULL string is allowed)
728 */
729 if (source_desc->string.pointer) {
730 dest_desc->string.pointer =
731 ACPI_ALLOCATE((acpi_size) source_desc->string.
732 length + 1);
733 if (!dest_desc->string.pointer) {
734 return (AE_NO_MEMORY);
735 }
736
737 /* Copy the actual string data */
738
739 ACPI_MEMCPY(dest_desc->string.pointer,
740 source_desc->string.pointer,
741 (acpi_size) source_desc->string.length + 1);
742 }
743 break;
744
745 case ACPI_TYPE_LOCAL_REFERENCE:
746 /*
747 * We copied the reference object, so we now must add a reference
748 * to the object pointed to by the reference
749 *
750 * DDBHandle reference (from Load/load_table) is a special reference,
751 * it does not have a Reference.Object, so does not need to
752 * increase the reference count
753 */
754 if (source_desc->reference.class == ACPI_REFCLASS_TABLE) {
755 break;
756 }
757
758 acpi_ut_add_reference(source_desc->reference.object);
759 break;
760
761 case ACPI_TYPE_REGION:
762 /*
763 * We copied the Region Handler, so we now must add a reference
764 */
765 if (dest_desc->region.handler) {
766 acpi_ut_add_reference(dest_desc->region.handler);
767 }
768 break;
769
770 default:
771 /* Nothing to do for other simple objects */
772 break;
773 }
774
775 return (AE_OK);
776}
777
778/*******************************************************************************
779 *
780 * FUNCTION: acpi_ut_copy_ielement_to_ielement
781 *
782 * PARAMETERS: acpi_pkg_callback
783 *
784 * RETURN: Status
785 *
786 * DESCRIPTION: Copy one package element to another package element
787 *
788 ******************************************************************************/
789
790static acpi_status
791acpi_ut_copy_ielement_to_ielement(u8 object_type,
792 union acpi_operand_object *source_object,
793 union acpi_generic_state *state,
794 void *context)
795{
796 acpi_status status = AE_OK;
797 u32 this_index;
798 union acpi_operand_object **this_target_ptr;
799 union acpi_operand_object *target_object;
800
801 ACPI_FUNCTION_ENTRY();
802
803 this_index = state->pkg.index;
804 this_target_ptr = (union acpi_operand_object **)
805 &state->pkg.dest_object->package.elements[this_index];
806
807 switch (object_type) {
808 case ACPI_COPY_TYPE_SIMPLE:
809
810 /* A null source object indicates a (legal) null package element */
811
812 if (source_object) {
813 /*
814 * This is a simple object, just copy it
815 */
816 target_object =
817 acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE
818 (source_object));
819 if (!target_object) {
820 return (AE_NO_MEMORY);
821 }
822
823 status =
824 acpi_ut_copy_simple_object(source_object,
825 target_object);
826 if (ACPI_FAILURE(status)) {
827 goto error_exit;
828 }
829
830 *this_target_ptr = target_object;
831 } else {
832 /* Pass through a null element */
833
834 *this_target_ptr = NULL;
835 }
836 break;
837
838 case ACPI_COPY_TYPE_PACKAGE:
839
840 /*
841 * This object is a package - go down another nesting level
842 * Create and build the package object
843 */
844 target_object =
845 acpi_ut_create_package_object(source_object->package.count);
846 if (!target_object) {
847 return (AE_NO_MEMORY);
848 }
849
850 target_object->common.flags = source_object->common.flags;
851
852 /* Pass the new package object back to the package walk routine */
853
854 state->pkg.this_target_obj = target_object;
855
856 /* Store the object pointer in the parent package object */
857
858 *this_target_ptr = target_object;
859 break;
860
861 default:
862 return (AE_BAD_PARAMETER);
863 }
864
865 return (status);
866
867 error_exit:
868 acpi_ut_remove_reference(target_object);
869 return (status);
870}
871
872/*******************************************************************************
873 *
874 * FUNCTION: acpi_ut_copy_ipackage_to_ipackage
875 *
876 * PARAMETERS: *source_obj - Pointer to the source package object
877 * *dest_obj - Where the internal object is returned
878 *
879 * RETURN: Status - the status of the call
880 *
881 * DESCRIPTION: This function is called to copy an internal package object
882 * into another internal package object.
883 *
884 ******************************************************************************/
885
886static acpi_status
887acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
888 union acpi_operand_object *dest_obj,
889 struct acpi_walk_state *walk_state)
890{
891 acpi_status status = AE_OK;
892
893 ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_ipackage);
894
895 dest_obj->common.type = ACPI_GET_OBJECT_TYPE(source_obj);
896 dest_obj->common.flags = source_obj->common.flags;
897 dest_obj->package.count = source_obj->package.count;
898
899 /*
900 * Create the object array and walk the source package tree
901 */
902 dest_obj->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
903 source_obj->package.
904 count +
905 1) * sizeof(void *));
906 if (!dest_obj->package.elements) {
907 ACPI_ERROR((AE_INFO, "Package allocation failure"));
908 return_ACPI_STATUS(AE_NO_MEMORY);
909 }
910
911 /*
912 * Copy the package element-by-element by walking the package "tree".
913 * This handles nested packages of arbitrary depth.
914 */
915 status = acpi_ut_walk_package_tree(source_obj, dest_obj,
916 acpi_ut_copy_ielement_to_ielement,
917 walk_state);
918 if (ACPI_FAILURE(status)) {
919
920 /* On failure, delete the destination package object */
921
922 acpi_ut_remove_reference(dest_obj);
923 }
924
925 return_ACPI_STATUS(status);
926}
927
928/*******************************************************************************
929 *
930 * FUNCTION: acpi_ut_copy_iobject_to_iobject
931 *
932 * PARAMETERS: walk_state - Current walk state
933 * source_desc - The internal object to be copied
934 * dest_desc - Where the copied object is returned
935 *
936 * RETURN: Status
937 *
938 * DESCRIPTION: Copy an internal object to a new internal object
939 *
940 ******************************************************************************/
941
942acpi_status
943acpi_ut_copy_iobject_to_iobject(union acpi_operand_object *source_desc,
944 union acpi_operand_object **dest_desc,
945 struct acpi_walk_state *walk_state)
946{
947 acpi_status status = AE_OK;
948
949 ACPI_FUNCTION_TRACE(ut_copy_iobject_to_iobject);
950
951 /* Create the top level object */
952
953 *dest_desc =
954 acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE(source_desc));
955 if (!*dest_desc) {
956 return_ACPI_STATUS(AE_NO_MEMORY);
957 }
958
959 /* Copy the object and possible subobjects */
960
961 if (ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_PACKAGE) {
962 status =
963 acpi_ut_copy_ipackage_to_ipackage(source_desc, *dest_desc,
964 walk_state);
965 } else {
966 status = acpi_ut_copy_simple_object(source_desc, *dest_desc);
967 }
968
969 return_ACPI_STATUS(status);
970}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-16 00:55:17 -0500