1/******************************************************************************
2 *
3 * Module Name: utcopy - Internal to external object translation utilities
4 *
5 *****************************************************************************/
6
7/******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************/
115
116#define __UTCOPY_C__
117
118#include <contrib/dev/acpica/include/acpi.h>
119#include <contrib/dev/acpica/include/accommon.h>
120#include <contrib/dev/acpica/include/acnamesp.h>
121
122
123#define _COMPONENT ACPI_UTILITIES
124 ACPI_MODULE_NAME ("utcopy")
125
126/* Local prototypes */
127
128static ACPI_STATUS
129AcpiUtCopyIsimpleToEsimple (
130 ACPI_OPERAND_OBJECT *InternalObject,
131 ACPI_OBJECT *ExternalObject,
132 UINT8 *DataSpace,
133 ACPI_SIZE *BufferSpaceUsed);
134
135static ACPI_STATUS
136AcpiUtCopyIelementToIelement (
137 UINT8 ObjectType,
138 ACPI_OPERAND_OBJECT *SourceObject,
139 ACPI_GENERIC_STATE *State,
140 void *Context);
141
142static ACPI_STATUS
143AcpiUtCopyIpackageToEpackage (
144 ACPI_OPERAND_OBJECT *InternalObject,
145 UINT8 *Buffer,
146 ACPI_SIZE *SpaceUsed);
147
148static ACPI_STATUS
149AcpiUtCopyEsimpleToIsimple(
150 ACPI_OBJECT *UserObj,
151 ACPI_OPERAND_OBJECT **ReturnObj);
152
153static ACPI_STATUS
154AcpiUtCopyEpackageToIpackage (
155 ACPI_OBJECT *ExternalObject,
156 ACPI_OPERAND_OBJECT **InternalObject);
157
158static ACPI_STATUS
159AcpiUtCopySimpleObject (
160 ACPI_OPERAND_OBJECT *SourceDesc,
161 ACPI_OPERAND_OBJECT *DestDesc);
162
163static ACPI_STATUS
164AcpiUtCopyIelementToEelement (
165 UINT8 ObjectType,
166 ACPI_OPERAND_OBJECT *SourceObject,
167 ACPI_GENERIC_STATE *State,
168 void *Context);
169
170static ACPI_STATUS
171AcpiUtCopyIpackageToIpackage (
172 ACPI_OPERAND_OBJECT *SourceObj,
173 ACPI_OPERAND_OBJECT *DestObj,
174 ACPI_WALK_STATE *WalkState);
175
176
177/*******************************************************************************
178 *
179 * FUNCTION: AcpiUtCopyIsimpleToEsimple
180 *
181 * PARAMETERS: InternalObject - Source object to be copied
182 * ExternalObject - Where to return the copied object
183 * DataSpace - Where object data is returned (such as
184 * buffer and string data)
185 * BufferSpaceUsed - Length of DataSpace that was used
186 *
187 * RETURN: Status
188 *
189 * DESCRIPTION: This function is called to copy a simple internal object to
190 * an external object.
191 *
192 * The DataSpace buffer is assumed to have sufficient space for
193 * the object.
194 *
195 ******************************************************************************/
196
197static ACPI_STATUS
198AcpiUtCopyIsimpleToEsimple (
199 ACPI_OPERAND_OBJECT *InternalObject,
200 ACPI_OBJECT *ExternalObject,
201 UINT8 *DataSpace,
202 ACPI_SIZE *BufferSpaceUsed)
203{
204 ACPI_STATUS Status = AE_OK;
205
206
207 ACPI_FUNCTION_TRACE (UtCopyIsimpleToEsimple);
208
209
210 *BufferSpaceUsed = 0;
211
212 /*
213 * Check for NULL object case (could be an uninitialized
214 * package element)
215 */
216 if (!InternalObject)
217 {
218 return_ACPI_STATUS (AE_OK);
219 }
220
221 /* Always clear the external object */
222
223 ACPI_MEMSET (ExternalObject, 0, sizeof (ACPI_OBJECT));
224
225 /*
226 * In general, the external object will be the same type as
227 * the internal object
228 */
229 ExternalObject->Type = InternalObject->Common.Type;
230
231 /* However, only a limited number of external types are supported */
232
233 switch (InternalObject->Common.Type)
234 {
235 case ACPI_TYPE_STRING:
236
237 ExternalObject->String.Pointer = (char *) DataSpace;
238 ExternalObject->String.Length = InternalObject->String.Length;
239 *BufferSpaceUsed = ACPI_ROUND_UP_TO_NATIVE_WORD (
240 (ACPI_SIZE) InternalObject->String.Length + 1);
241
242 ACPI_MEMCPY ((void *) DataSpace,
243 (void *) InternalObject->String.Pointer,
244 (ACPI_SIZE) InternalObject->String.Length + 1);
245 break;
246
247
248 case ACPI_TYPE_BUFFER:
249
250 ExternalObject->Buffer.Pointer = DataSpace;
251 ExternalObject->Buffer.Length = InternalObject->Buffer.Length;
252 *BufferSpaceUsed = ACPI_ROUND_UP_TO_NATIVE_WORD (
253 InternalObject->String.Length);
254
255 ACPI_MEMCPY ((void *) DataSpace,
256 (void *) InternalObject->Buffer.Pointer,
257 InternalObject->Buffer.Length);
258 break;
259
260
261 case ACPI_TYPE_INTEGER:
262
263 ExternalObject->Integer.Value = InternalObject->Integer.Value;
264 break;
265
266
267 case ACPI_TYPE_LOCAL_REFERENCE:
268
269 /* This is an object reference. */
270
271 switch (InternalObject->Reference.Class)
272 {
273 case ACPI_REFCLASS_NAME:
274
275 /*
276 * For namepath, return the object handle ("reference")
277 * We are referring to the namespace node
278 */
279 ExternalObject->Reference.Handle =
280 InternalObject->Reference.Node;
281 ExternalObject->Reference.ActualType =
282 AcpiNsGetType (InternalObject->Reference.Node);
283 break;
284
285 default:
286
287 /* All other reference types are unsupported */
288
289 return_ACPI_STATUS (AE_TYPE);
290 }
291 break;
292
293
294 case ACPI_TYPE_PROCESSOR:
295
296 ExternalObject->Processor.ProcId =
297 InternalObject->Processor.ProcId;
298 ExternalObject->Processor.PblkAddress =
299 InternalObject->Processor.Address;
300 ExternalObject->Processor.PblkLength =
301 InternalObject->Processor.Length;
302 break;
303
304
305 case ACPI_TYPE_POWER:
306
307 ExternalObject->PowerResource.SystemLevel =
308 InternalObject->PowerResource.SystemLevel;
309
310 ExternalObject->PowerResource.ResourceOrder =
311 InternalObject->PowerResource.ResourceOrder;
312 break;
313
314
315 default:
316 /*
317 * There is no corresponding external object type
318 */
319 ACPI_ERROR ((AE_INFO,
320 "Unsupported object type, cannot convert to external object: %s",
321 AcpiUtGetTypeName (InternalObject->Common.Type)));
322
323 return_ACPI_STATUS (AE_SUPPORT);
324 }
325
326 return_ACPI_STATUS (Status);
327}
328
329
330/*******************************************************************************
331 *
332 * FUNCTION: AcpiUtCopyIelementToEelement
333 *
334 * PARAMETERS: ACPI_PKG_CALLBACK
335 *
336 * RETURN: Status
337 *
338 * DESCRIPTION: Copy one package element to another package element
339 *
340 ******************************************************************************/
341
342static ACPI_STATUS
343AcpiUtCopyIelementToEelement (
344 UINT8 ObjectType,
345 ACPI_OPERAND_OBJECT *SourceObject,
346 ACPI_GENERIC_STATE *State,
347 void *Context)
348{
349 ACPI_STATUS Status = AE_OK;
350 ACPI_PKG_INFO *Info = (ACPI_PKG_INFO *) Context;
351 ACPI_SIZE ObjectSpace;
352 UINT32 ThisIndex;
353 ACPI_OBJECT *TargetObject;
354
355
356 ACPI_FUNCTION_ENTRY ();
357
358
359 ThisIndex = State->Pkg.Index;
360 TargetObject = (ACPI_OBJECT *)
361 &((ACPI_OBJECT *)(State->Pkg.DestObject))->Package.Elements[ThisIndex];
362
363 switch (ObjectType)
364 {
365 case ACPI_COPY_TYPE_SIMPLE:
366
367 /*
368 * This is a simple or null object
369 */
370 Status = AcpiUtCopyIsimpleToEsimple (SourceObject,
371 TargetObject, Info->FreeSpace, &ObjectSpace);
372 if (ACPI_FAILURE (Status))
373 {
374 return (Status);
375 }
376 break;
377
378
379 case ACPI_COPY_TYPE_PACKAGE:
380
381 /*
382 * Build the package object
383 */
384 TargetObject->Type = ACPI_TYPE_PACKAGE;
385 TargetObject->Package.Count = SourceObject->Package.Count;
386 TargetObject->Package.Elements =
387 ACPI_CAST_PTR (ACPI_OBJECT, Info->FreeSpace);
388
389 /*
390 * Pass the new package object back to the package walk routine
391 */
392 State->Pkg.ThisTargetObj = TargetObject;
393
394 /*
395 * Save space for the array of objects (Package elements)
396 * update the buffer length counter
397 */
398 ObjectSpace = ACPI_ROUND_UP_TO_NATIVE_WORD (
399 (ACPI_SIZE) TargetObject->Package.Count *
400 sizeof (ACPI_OBJECT));
401 break;
402
403
404 default:
405 return (AE_BAD_PARAMETER);
406 }
407
408 Info->FreeSpace += ObjectSpace;
409 Info->Length += ObjectSpace;
410 return (Status);
411}
412
413
414/*******************************************************************************
415 *
416 * FUNCTION: AcpiUtCopyIpackageToEpackage
417 *
418 * PARAMETERS: InternalObject - Pointer to the object we are returning
419 * Buffer - Where the object is returned
420 * SpaceUsed - Where the object length is returned
421 *
422 * RETURN: Status
423 *
424 * DESCRIPTION: This function is called to place a package object in a user
425 * buffer. A package object by definition contains other objects.
426 *
427 * The buffer is assumed to have sufficient space for the object.
428 * The caller must have verified the buffer length needed using
429 * the AcpiUtGetObjectSize function before calling this function.
430 *
431 ******************************************************************************/
432
433static ACPI_STATUS
434AcpiUtCopyIpackageToEpackage (
435 ACPI_OPERAND_OBJECT *InternalObject,
436 UINT8 *Buffer,
437 ACPI_SIZE *SpaceUsed)
438{
439 ACPI_OBJECT *ExternalObject;
440 ACPI_STATUS Status;
441 ACPI_PKG_INFO Info;
442
443
444 ACPI_FUNCTION_TRACE (UtCopyIpackageToEpackage);
445
446
447 /*
448 * First package at head of the buffer
449 */
450 ExternalObject = ACPI_CAST_PTR (ACPI_OBJECT, Buffer);
451
452 /*
453 * Free space begins right after the first package
454 */
455 Info.Length = ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
456 Info.FreeSpace = Buffer + ACPI_ROUND_UP_TO_NATIVE_WORD (
457 sizeof (ACPI_OBJECT));
458 Info.ObjectSpace = 0;
459 Info.NumPackages = 1;
460
461 ExternalObject->Type = InternalObject->Common.Type;
462 ExternalObject->Package.Count = InternalObject->Package.Count;
463 ExternalObject->Package.Elements = ACPI_CAST_PTR (ACPI_OBJECT,
464 Info.FreeSpace);
465
466 /*
467 * Leave room for an array of ACPI_OBJECTS in the buffer
468 * and move the free space past it
469 */
470 Info.Length += (ACPI_SIZE) ExternalObject->Package.Count *
471 ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
472 Info.FreeSpace += ExternalObject->Package.Count *
473 ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
474
475 Status = AcpiUtWalkPackageTree (InternalObject, ExternalObject,
476 AcpiUtCopyIelementToEelement, &Info);
477
478 *SpaceUsed = Info.Length;
479 return_ACPI_STATUS (Status);
480}
481
482
483/*******************************************************************************
484 *
485 * FUNCTION: AcpiUtCopyIobjectToEobject
486 *
487 * PARAMETERS: InternalObject - The internal object to be converted
488 * RetBuffer - Where the object is returned
489 *
490 * RETURN: Status
491 *
492 * DESCRIPTION: This function is called to build an API object to be returned
493 * to the caller.
494 *
495 ******************************************************************************/
496
497ACPI_STATUS
498AcpiUtCopyIobjectToEobject (
499 ACPI_OPERAND_OBJECT *InternalObject,
500 ACPI_BUFFER *RetBuffer)
501{
502 ACPI_STATUS Status;
503
504
505 ACPI_FUNCTION_TRACE (UtCopyIobjectToEobject);
506
507
508 if (InternalObject->Common.Type == ACPI_TYPE_PACKAGE)
509 {
510 /*
511 * Package object: Copy all subobjects (including
512 * nested packages)
513 */
514 Status = AcpiUtCopyIpackageToEpackage (InternalObject,
515 RetBuffer->Pointer, &RetBuffer->Length);
516 }
517 else
518 {
519 /*
520 * Build a simple object (no nested objects)
521 */
522 Status = AcpiUtCopyIsimpleToEsimple (InternalObject,
523 ACPI_CAST_PTR (ACPI_OBJECT, RetBuffer->Pointer),
524 ACPI_ADD_PTR (UINT8, RetBuffer->Pointer,
525 ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT))),
526 &RetBuffer->Length);
527 /*
528 * build simple does not include the object size in the length
529 * so we add it in here
530 */
531 RetBuffer->Length += sizeof (ACPI_OBJECT);
532 }
533
534 return_ACPI_STATUS (Status);
535}
536
537
538/*******************************************************************************
539 *
540 * FUNCTION: AcpiUtCopyEsimpleToIsimple
541 *
542 * PARAMETERS: ExternalObject - The external object to be converted
543 * RetInternalObject - Where the internal object is returned
544 *
545 * RETURN: Status
546 *
547 * DESCRIPTION: This function copies an external object to an internal one.
548 * NOTE: Pointers can be copied, we don't need to copy data.
549 * (The pointers have to be valid in our address space no matter
550 * what we do with them!)
551 *
552 ******************************************************************************/
553
554static ACPI_STATUS
555AcpiUtCopyEsimpleToIsimple (
556 ACPI_OBJECT *ExternalObject,
557 ACPI_OPERAND_OBJECT **RetInternalObject)
558{
559 ACPI_OPERAND_OBJECT *InternalObject;
560
561
562 ACPI_FUNCTION_TRACE (UtCopyEsimpleToIsimple);
563
564
565 /*
566 * Simple types supported are: String, Buffer, Integer
567 */
568 switch (ExternalObject->Type)
569 {
570 case ACPI_TYPE_STRING:
571 case ACPI_TYPE_BUFFER:
572 case ACPI_TYPE_INTEGER:
573 case ACPI_TYPE_LOCAL_REFERENCE:
574
575 InternalObject = AcpiUtCreateInternalObject (
576 (UINT8) ExternalObject->Type);
577 if (!InternalObject)
578 {
579 return_ACPI_STATUS (AE_NO_MEMORY);
580 }
581 break;
582
583 case ACPI_TYPE_ANY: /* This is the case for a NULL object */
584
585 *RetInternalObject = NULL;
586 return_ACPI_STATUS (AE_OK);
587
588 default:
589 /* All other types are not supported */
590
591 ACPI_ERROR ((AE_INFO,
592 "Unsupported object type, cannot convert to internal object: %s",
593 AcpiUtGetTypeName (ExternalObject->Type)));
594
595 return_ACPI_STATUS (AE_SUPPORT);
596 }
597
598
599 /* Must COPY string and buffer contents */
600
601 switch (ExternalObject->Type)
602 {
603 case ACPI_TYPE_STRING:
604
605 InternalObject->String.Pointer =
606 ACPI_ALLOCATE_ZEROED ((ACPI_SIZE)
607 ExternalObject->String.Length + 1);
608
609 if (!InternalObject->String.Pointer)
610 {
611 goto ErrorExit;
612 }
613
614 ACPI_MEMCPY (InternalObject->String.Pointer,
615 ExternalObject->String.Pointer,
616 ExternalObject->String.Length);
617
618 InternalObject->String.Length = ExternalObject->String.Length;
619 break;
620
621
622 case ACPI_TYPE_BUFFER:
623
624 InternalObject->Buffer.Pointer =
625 ACPI_ALLOCATE_ZEROED (ExternalObject->Buffer.Length);
626 if (!InternalObject->Buffer.Pointer)
627 {
628 goto ErrorExit;
629 }
630
631 ACPI_MEMCPY (InternalObject->Buffer.Pointer,
632 ExternalObject->Buffer.Pointer,
633 ExternalObject->Buffer.Length);
634
635 InternalObject->Buffer.Length = ExternalObject->Buffer.Length;
636
637 /* Mark buffer data valid */
638
639 InternalObject->Buffer.Flags |= AOPOBJ_DATA_VALID;
640 break;
641
642
643 case ACPI_TYPE_INTEGER:
644
645 InternalObject->Integer.Value = ExternalObject->Integer.Value;
646 break;
647
648 case ACPI_TYPE_LOCAL_REFERENCE:
649
650 /* TBD: should validate incoming handle */
651
652 InternalObject->Reference.Class = ACPI_REFCLASS_NAME;
653 InternalObject->Reference.Node = ExternalObject->Reference.Handle;
654 break;
655
656 default:
657 /* Other types can't get here */
658 break;
659 }
660
661 *RetInternalObject = InternalObject;
662 return_ACPI_STATUS (AE_OK);
663
664
665ErrorExit:
666 AcpiUtRemoveReference (InternalObject);
667 return_ACPI_STATUS (AE_NO_MEMORY);
668}
669
670
671/*******************************************************************************
672 *
673 * FUNCTION: AcpiUtCopyEpackageToIpackage
674 *
675 * PARAMETERS: ExternalObject - The external object to be converted
676 * InternalObject - Where the internal object is returned
677 *
678 * RETURN: Status
679 *
680 * DESCRIPTION: Copy an external package object to an internal package.
681 * Handles nested packages.
682 *
683 ******************************************************************************/
684
685static ACPI_STATUS
686AcpiUtCopyEpackageToIpackage (
687 ACPI_OBJECT *ExternalObject,
688 ACPI_OPERAND_OBJECT **InternalObject)
689{
690 ACPI_STATUS Status = AE_OK;
691 ACPI_OPERAND_OBJECT *PackageObject;
692 ACPI_OPERAND_OBJECT **PackageElements;
693 UINT32 i;
694
695
696 ACPI_FUNCTION_TRACE (UtCopyEpackageToIpackage);
697
698
699 /* Create the package object */
700
701 PackageObject = AcpiUtCreatePackageObject (ExternalObject->Package.Count);
702 if (!PackageObject)
703 {
704 return_ACPI_STATUS (AE_NO_MEMORY);
705 }
706
707 PackageElements = PackageObject->Package.Elements;
708
709 /*
710 * Recursive implementation. Probably ok, since nested external packages
711 * as parameters should be very rare.
712 */
713 for (i = 0; i < ExternalObject->Package.Count; i++)
714 {
715 Status = AcpiUtCopyEobjectToIobject (
716 &ExternalObject->Package.Elements[i],
717 &PackageElements[i]);
718 if (ACPI_FAILURE (Status))
719 {
720 /* Truncate package and delete it */
721
722 PackageObject->Package.Count = i;
723 PackageElements[i] = NULL;
724 AcpiUtRemoveReference (PackageObject);
725 return_ACPI_STATUS (Status);
726 }
727 }
728
729 /* Mark package data valid */
730
731 PackageObject->Package.Flags |= AOPOBJ_DATA_VALID;
732
733 *InternalObject = PackageObject;
734 return_ACPI_STATUS (Status);
735}
736
737
738/*******************************************************************************
739 *
740 * FUNCTION: AcpiUtCopyEobjectToIobject
741 *
742 * PARAMETERS: ExternalObject - The external object to be converted
743 * InternalObject - Where the internal object is returned
744 *
745 * RETURN: Status
746 *
747 * DESCRIPTION: Converts an external object to an internal object.
748 *
749 ******************************************************************************/
750
751ACPI_STATUS
752AcpiUtCopyEobjectToIobject (
753 ACPI_OBJECT *ExternalObject,
754 ACPI_OPERAND_OBJECT **InternalObject)
755{
756 ACPI_STATUS Status;
757
758
759 ACPI_FUNCTION_TRACE (UtCopyEobjectToIobject);
760
761
762 if (ExternalObject->Type == ACPI_TYPE_PACKAGE)
763 {
764 Status = AcpiUtCopyEpackageToIpackage (ExternalObject, InternalObject);
765 }
766 else
767 {
768 /*
769 * Build a simple object (no nested objects)
770 */
771 Status = AcpiUtCopyEsimpleToIsimple (ExternalObject, InternalObject);
772 }
773
774 return_ACPI_STATUS (Status);
775}
776
777
778/*******************************************************************************
779 *
780 * FUNCTION: AcpiUtCopySimpleObject
781 *
782 * PARAMETERS: SourceDesc - The internal object to be copied
783 * DestDesc - New target object
784 *
785 * RETURN: Status
786 *
787 * DESCRIPTION: Simple copy of one internal object to another. Reference count
788 * of the destination object is preserved.
789 *
790 ******************************************************************************/
791
792static ACPI_STATUS
793AcpiUtCopySimpleObject (
794 ACPI_OPERAND_OBJECT *SourceDesc,
795 ACPI_OPERAND_OBJECT *DestDesc)
796{
797 UINT16 ReferenceCount;
798 ACPI_OPERAND_OBJECT *NextObject;
799 ACPI_STATUS Status;
800
801
802 /* Save fields from destination that we don't want to overwrite */
803
804 ReferenceCount = DestDesc->Common.ReferenceCount;
805 NextObject = DestDesc->Common.NextObject;
806
807 /* Copy the entire source object over the destination object*/
808
809 ACPI_MEMCPY ((char *) DestDesc, (char *) SourceDesc,
810 sizeof (ACPI_OPERAND_OBJECT));
811
812 /* Restore the saved fields */
813
814 DestDesc->Common.ReferenceCount = ReferenceCount;
815 DestDesc->Common.NextObject = NextObject;
816
817 /* New object is not static, regardless of source */
818
819 DestDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER;
820
821 /* Handle the objects with extra data */
822
823 switch (DestDesc->Common.Type)
824 {
825 case ACPI_TYPE_BUFFER:
826 /*
827 * Allocate and copy the actual buffer if and only if:
828 * 1) There is a valid buffer pointer
829 * 2) The buffer has a length > 0
830 */
831 if ((SourceDesc->Buffer.Pointer) &&
832 (SourceDesc->Buffer.Length))
833 {
834 DestDesc->Buffer.Pointer =
835 ACPI_ALLOCATE (SourceDesc->Buffer.Length);
836 if (!DestDesc->Buffer.Pointer)
837 {
838 return (AE_NO_MEMORY);
839 }
840
841 /* Copy the actual buffer data */
842
843 ACPI_MEMCPY (DestDesc->Buffer.Pointer,
844 SourceDesc->Buffer.Pointer,
845 SourceDesc->Buffer.Length);
846 }
847 break;
848
849 case ACPI_TYPE_STRING:
850 /*
851 * Allocate and copy the actual string if and only if:
852 * 1) There is a valid string pointer
853 * (Pointer to a NULL string is allowed)
854 */
855 if (SourceDesc->String.Pointer)
856 {
857 DestDesc->String.Pointer =
858 ACPI_ALLOCATE ((ACPI_SIZE) SourceDesc->String.Length + 1);
859 if (!DestDesc->String.Pointer)
860 {
861 return (AE_NO_MEMORY);
862 }
863
864 /* Copy the actual string data */
865
866 ACPI_MEMCPY (DestDesc->String.Pointer, SourceDesc->String.Pointer,
867 (ACPI_SIZE) SourceDesc->String.Length + 1);
868 }
869 break;
870
871 case ACPI_TYPE_LOCAL_REFERENCE:
872 /*
873 * We copied the reference object, so we now must add a reference
874 * to the object pointed to by the reference
875 *
876 * DDBHandle reference (from Load/LoadTable) is a special reference,
877 * it does not have a Reference.Object, so does not need to
878 * increase the reference count
879 */
880 if (SourceDesc->Reference.Class == ACPI_REFCLASS_TABLE)
881 {
882 break;
883 }
884
885 AcpiUtAddReference (SourceDesc->Reference.Object);
886 break;
887
888 case ACPI_TYPE_REGION:
889 /*
890 * We copied the Region Handler, so we now must add a reference
891 */
892 if (DestDesc->Region.Handler)
893 {
894 AcpiUtAddReference (DestDesc->Region.Handler);
895 }
896 break;
897
898 /*
899 * For Mutex and Event objects, we cannot simply copy the underlying
900 * OS object. We must create a new one.
901 */
902 case ACPI_TYPE_MUTEX:
903
904 Status = AcpiOsCreateMutex (&DestDesc->Mutex.OsMutex);
905 if (ACPI_FAILURE (Status))
906 {
907 return (Status);
908 }
909 break;
910
911 case ACPI_TYPE_EVENT:
912
913 Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
914 &DestDesc->Event.OsSemaphore);
915 if (ACPI_FAILURE (Status))
916 {
917 return (Status);
918 }
919 break;
920
921 default:
922 /* Nothing to do for other simple objects */
923 break;
924 }
925
926 return (AE_OK);
927}
928
929
930/*******************************************************************************
931 *
932 * FUNCTION: AcpiUtCopyIelementToIelement
933 *
934 * PARAMETERS: ACPI_PKG_CALLBACK
935 *
936 * RETURN: Status
937 *
938 * DESCRIPTION: Copy one package element to another package element
939 *
940 ******************************************************************************/
941
942static ACPI_STATUS
943AcpiUtCopyIelementToIelement (
944 UINT8 ObjectType,
945 ACPI_OPERAND_OBJECT *SourceObject,
946 ACPI_GENERIC_STATE *State,
947 void *Context)
948{
949 ACPI_STATUS Status = AE_OK;
950 UINT32 ThisIndex;
951 ACPI_OPERAND_OBJECT **ThisTargetPtr;
952 ACPI_OPERAND_OBJECT *TargetObject;
953
954
955 ACPI_FUNCTION_ENTRY ();
956
957
958 ThisIndex = State->Pkg.Index;
959 ThisTargetPtr = (ACPI_OPERAND_OBJECT **)
960 &State->Pkg.DestObject->Package.Elements[ThisIndex];
961
962 switch (ObjectType)
963 {
964 case ACPI_COPY_TYPE_SIMPLE:
965
966 /* A null source object indicates a (legal) null package element */
967
968 if (SourceObject)
969 {
970 /*
971 * This is a simple object, just copy it
972 */
973 TargetObject = AcpiUtCreateInternalObject (
974 SourceObject->Common.Type);
975 if (!TargetObject)
976 {
977 return (AE_NO_MEMORY);
978 }
979
980 Status = AcpiUtCopySimpleObject (SourceObject, TargetObject);
981 if (ACPI_FAILURE (Status))
982 {
983 goto ErrorExit;
984 }
985
986 *ThisTargetPtr = TargetObject;
987 }
988 else
989 {
990 /* Pass through a null element */
991
992 *ThisTargetPtr = NULL;
993 }
994 break;
995
996
997 case ACPI_COPY_TYPE_PACKAGE:
998
999 /*
1000 * This object is a package - go down another nesting level
1001 * Create and build the package object
1002 */
1003 TargetObject = AcpiUtCreatePackageObject (SourceObject->Package.Count);
1004 if (!TargetObject)
1005 {
1006 return (AE_NO_MEMORY);
1007 }
1008
1009 TargetObject->Common.Flags = SourceObject->Common.Flags;
1010
1011 /* Pass the new package object back to the package walk routine */
1012
1013 State->Pkg.ThisTargetObj = TargetObject;
1014
1015 /* Store the object pointer in the parent package object */
1016
1017 *ThisTargetPtr = TargetObject;
1018 break;
1019
1020
1021 default:
1022 return (AE_BAD_PARAMETER);
1023 }
1024
1025 return (Status);
1026
1027ErrorExit:
1028 AcpiUtRemoveReference (TargetObject);
1029 return (Status);
1030}
1031
1032
1033/*******************************************************************************
1034 *
1035 * FUNCTION: AcpiUtCopyIpackageToIpackage
1036 *
1037 * PARAMETERS: SourceObj - Pointer to the source package object
1038 * DestObj - Where the internal object is returned
1039 * WalkState - Current Walk state descriptor
1040 *
1041 * RETURN: Status
1042 *
1043 * DESCRIPTION: This function is called to copy an internal package object
1044 * into another internal package object.
1045 *
1046 ******************************************************************************/
1047
1048static ACPI_STATUS
1049AcpiUtCopyIpackageToIpackage (
1050 ACPI_OPERAND_OBJECT *SourceObj,
1051 ACPI_OPERAND_OBJECT *DestObj,
1052 ACPI_WALK_STATE *WalkState)
1053{
1054 ACPI_STATUS Status = AE_OK;
1055
1056
1057 ACPI_FUNCTION_TRACE (UtCopyIpackageToIpackage);
1058
1059
1060 DestObj->Common.Type = SourceObj->Common.Type;
1061 DestObj->Common.Flags = SourceObj->Common.Flags;
1062 DestObj->Package.Count = SourceObj->Package.Count;
1063
1064 /*
1065 * Create the object array and walk the source package tree
1066 */
1067 DestObj->Package.Elements = ACPI_ALLOCATE_ZEROED (
1068 ((ACPI_SIZE) SourceObj->Package.Count + 1) *
1069 sizeof (void *));
1070 if (!DestObj->Package.Elements)
1071 {
1072 ACPI_ERROR ((AE_INFO, "Package allocation failure"));
1073 return_ACPI_STATUS (AE_NO_MEMORY);
1074 }
1075
1076 /*
1077 * Copy the package element-by-element by walking the package "tree".
1078 * This handles nested packages of arbitrary depth.
1079 */
1080 Status = AcpiUtWalkPackageTree (SourceObj, DestObj,
1081 AcpiUtCopyIelementToIelement, WalkState);
1082 if (ACPI_FAILURE (Status))
1083 {
1084 /* On failure, delete the destination package object */
1085
1086 AcpiUtRemoveReference (DestObj);
1087 }
1088
1089 return_ACPI_STATUS (Status);
1090}
1091
1092
1093/*******************************************************************************
1094 *
1095 * FUNCTION: AcpiUtCopyIobjectToIobject
1096 *
1097 * PARAMETERS: SourceDesc - The internal object to be copied
1098 * DestDesc - Where the copied object is returned
1099 * WalkState - Current walk state
1100 *
1101 * RETURN: Status
1102 *
1103 * DESCRIPTION: Copy an internal object to a new internal object
1104 *
1105 ******************************************************************************/
1106
1107ACPI_STATUS
1108AcpiUtCopyIobjectToIobject (
1109 ACPI_OPERAND_OBJECT *SourceDesc,
1110 ACPI_OPERAND_OBJECT **DestDesc,
1111 ACPI_WALK_STATE *WalkState)
1112{
1113 ACPI_STATUS Status = AE_OK;
1114
1115
1116 ACPI_FUNCTION_TRACE (UtCopyIobjectToIobject);
1117
1118
1119 /* Create the top level object */
1120
1121 *DestDesc = AcpiUtCreateInternalObject (SourceDesc->Common.Type);
1122 if (!*DestDesc)
1123 {
1124 return_ACPI_STATUS (AE_NO_MEMORY);
1125 }
1126
1127 /* Copy the object and possible subobjects */
1128
1129 if (SourceDesc->Common.Type == ACPI_TYPE_PACKAGE)
1130 {
1131 Status = AcpiUtCopyIpackageToIpackage (SourceDesc, *DestDesc,
1132 WalkState);
1133 }
1134 else
1135 {
1136 Status = AcpiUtCopySimpleObject (SourceDesc, *DestDesc);
1137 }
1138
1139 return_ACPI_STATUS (Status);
1140}
1141
1142
2 *
3 * Module Name: utcopy - Internal to external object translation utilities
4 *
5 *****************************************************************************/
6
7/******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************/
115
116#define __UTCOPY_C__
117
118#include <contrib/dev/acpica/include/acpi.h>
119#include <contrib/dev/acpica/include/accommon.h>
120#include <contrib/dev/acpica/include/acnamesp.h>
121
122
123#define _COMPONENT ACPI_UTILITIES
124 ACPI_MODULE_NAME ("utcopy")
125
126/* Local prototypes */
127
128static ACPI_STATUS
129AcpiUtCopyIsimpleToEsimple (
130 ACPI_OPERAND_OBJECT *InternalObject,
131 ACPI_OBJECT *ExternalObject,
132 UINT8 *DataSpace,
133 ACPI_SIZE *BufferSpaceUsed);
134
135static ACPI_STATUS
136AcpiUtCopyIelementToIelement (
137 UINT8 ObjectType,
138 ACPI_OPERAND_OBJECT *SourceObject,
139 ACPI_GENERIC_STATE *State,
140 void *Context);
141
142static ACPI_STATUS
143AcpiUtCopyIpackageToEpackage (
144 ACPI_OPERAND_OBJECT *InternalObject,
145 UINT8 *Buffer,
146 ACPI_SIZE *SpaceUsed);
147
148static ACPI_STATUS
149AcpiUtCopyEsimpleToIsimple(
150 ACPI_OBJECT *UserObj,
151 ACPI_OPERAND_OBJECT **ReturnObj);
152
153static ACPI_STATUS
154AcpiUtCopyEpackageToIpackage (
155 ACPI_OBJECT *ExternalObject,
156 ACPI_OPERAND_OBJECT **InternalObject);
157
158static ACPI_STATUS
159AcpiUtCopySimpleObject (
160 ACPI_OPERAND_OBJECT *SourceDesc,
161 ACPI_OPERAND_OBJECT *DestDesc);
162
163static ACPI_STATUS
164AcpiUtCopyIelementToEelement (
165 UINT8 ObjectType,
166 ACPI_OPERAND_OBJECT *SourceObject,
167 ACPI_GENERIC_STATE *State,
168 void *Context);
169
170static ACPI_STATUS
171AcpiUtCopyIpackageToIpackage (
172 ACPI_OPERAND_OBJECT *SourceObj,
173 ACPI_OPERAND_OBJECT *DestObj,
174 ACPI_WALK_STATE *WalkState);
175
176
177/*******************************************************************************
178 *
179 * FUNCTION: AcpiUtCopyIsimpleToEsimple
180 *
181 * PARAMETERS: InternalObject - Source object to be copied
182 * ExternalObject - Where to return the copied object
183 * DataSpace - Where object data is returned (such as
184 * buffer and string data)
185 * BufferSpaceUsed - Length of DataSpace that was used
186 *
187 * RETURN: Status
188 *
189 * DESCRIPTION: This function is called to copy a simple internal object to
190 * an external object.
191 *
192 * The DataSpace buffer is assumed to have sufficient space for
193 * the object.
194 *
195 ******************************************************************************/
196
197static ACPI_STATUS
198AcpiUtCopyIsimpleToEsimple (
199 ACPI_OPERAND_OBJECT *InternalObject,
200 ACPI_OBJECT *ExternalObject,
201 UINT8 *DataSpace,
202 ACPI_SIZE *BufferSpaceUsed)
203{
204 ACPI_STATUS Status = AE_OK;
205
206
207 ACPI_FUNCTION_TRACE (UtCopyIsimpleToEsimple);
208
209
210 *BufferSpaceUsed = 0;
211
212 /*
213 * Check for NULL object case (could be an uninitialized
214 * package element)
215 */
216 if (!InternalObject)
217 {
218 return_ACPI_STATUS (AE_OK);
219 }
220
221 /* Always clear the external object */
222
223 ACPI_MEMSET (ExternalObject, 0, sizeof (ACPI_OBJECT));
224
225 /*
226 * In general, the external object will be the same type as
227 * the internal object
228 */
229 ExternalObject->Type = InternalObject->Common.Type;
230
231 /* However, only a limited number of external types are supported */
232
233 switch (InternalObject->Common.Type)
234 {
235 case ACPI_TYPE_STRING:
236
237 ExternalObject->String.Pointer = (char *) DataSpace;
238 ExternalObject->String.Length = InternalObject->String.Length;
239 *BufferSpaceUsed = ACPI_ROUND_UP_TO_NATIVE_WORD (
240 (ACPI_SIZE) InternalObject->String.Length + 1);
241
242 ACPI_MEMCPY ((void *) DataSpace,
243 (void *) InternalObject->String.Pointer,
244 (ACPI_SIZE) InternalObject->String.Length + 1);
245 break;
246
247
248 case ACPI_TYPE_BUFFER:
249
250 ExternalObject->Buffer.Pointer = DataSpace;
251 ExternalObject->Buffer.Length = InternalObject->Buffer.Length;
252 *BufferSpaceUsed = ACPI_ROUND_UP_TO_NATIVE_WORD (
253 InternalObject->String.Length);
254
255 ACPI_MEMCPY ((void *) DataSpace,
256 (void *) InternalObject->Buffer.Pointer,
257 InternalObject->Buffer.Length);
258 break;
259
260
261 case ACPI_TYPE_INTEGER:
262
263 ExternalObject->Integer.Value = InternalObject->Integer.Value;
264 break;
265
266
267 case ACPI_TYPE_LOCAL_REFERENCE:
268
269 /* This is an object reference. */
270
271 switch (InternalObject->Reference.Class)
272 {
273 case ACPI_REFCLASS_NAME:
274
275 /*
276 * For namepath, return the object handle ("reference")
277 * We are referring to the namespace node
278 */
279 ExternalObject->Reference.Handle =
280 InternalObject->Reference.Node;
281 ExternalObject->Reference.ActualType =
282 AcpiNsGetType (InternalObject->Reference.Node);
283 break;
284
285 default:
286
287 /* All other reference types are unsupported */
288
289 return_ACPI_STATUS (AE_TYPE);
290 }
291 break;
292
293
294 case ACPI_TYPE_PROCESSOR:
295
296 ExternalObject->Processor.ProcId =
297 InternalObject->Processor.ProcId;
298 ExternalObject->Processor.PblkAddress =
299 InternalObject->Processor.Address;
300 ExternalObject->Processor.PblkLength =
301 InternalObject->Processor.Length;
302 break;
303
304
305 case ACPI_TYPE_POWER:
306
307 ExternalObject->PowerResource.SystemLevel =
308 InternalObject->PowerResource.SystemLevel;
309
310 ExternalObject->PowerResource.ResourceOrder =
311 InternalObject->PowerResource.ResourceOrder;
312 break;
313
314
315 default:
316 /*
317 * There is no corresponding external object type
318 */
319 ACPI_ERROR ((AE_INFO,
320 "Unsupported object type, cannot convert to external object: %s",
321 AcpiUtGetTypeName (InternalObject->Common.Type)));
322
323 return_ACPI_STATUS (AE_SUPPORT);
324 }
325
326 return_ACPI_STATUS (Status);
327}
328
329
330/*******************************************************************************
331 *
332 * FUNCTION: AcpiUtCopyIelementToEelement
333 *
334 * PARAMETERS: ACPI_PKG_CALLBACK
335 *
336 * RETURN: Status
337 *
338 * DESCRIPTION: Copy one package element to another package element
339 *
340 ******************************************************************************/
341
342static ACPI_STATUS
343AcpiUtCopyIelementToEelement (
344 UINT8 ObjectType,
345 ACPI_OPERAND_OBJECT *SourceObject,
346 ACPI_GENERIC_STATE *State,
347 void *Context)
348{
349 ACPI_STATUS Status = AE_OK;
350 ACPI_PKG_INFO *Info = (ACPI_PKG_INFO *) Context;
351 ACPI_SIZE ObjectSpace;
352 UINT32 ThisIndex;
353 ACPI_OBJECT *TargetObject;
354
355
356 ACPI_FUNCTION_ENTRY ();
357
358
359 ThisIndex = State->Pkg.Index;
360 TargetObject = (ACPI_OBJECT *)
361 &((ACPI_OBJECT *)(State->Pkg.DestObject))->Package.Elements[ThisIndex];
362
363 switch (ObjectType)
364 {
365 case ACPI_COPY_TYPE_SIMPLE:
366
367 /*
368 * This is a simple or null object
369 */
370 Status = AcpiUtCopyIsimpleToEsimple (SourceObject,
371 TargetObject, Info->FreeSpace, &ObjectSpace);
372 if (ACPI_FAILURE (Status))
373 {
374 return (Status);
375 }
376 break;
377
378
379 case ACPI_COPY_TYPE_PACKAGE:
380
381 /*
382 * Build the package object
383 */
384 TargetObject->Type = ACPI_TYPE_PACKAGE;
385 TargetObject->Package.Count = SourceObject->Package.Count;
386 TargetObject->Package.Elements =
387 ACPI_CAST_PTR (ACPI_OBJECT, Info->FreeSpace);
388
389 /*
390 * Pass the new package object back to the package walk routine
391 */
392 State->Pkg.ThisTargetObj = TargetObject;
393
394 /*
395 * Save space for the array of objects (Package elements)
396 * update the buffer length counter
397 */
398 ObjectSpace = ACPI_ROUND_UP_TO_NATIVE_WORD (
399 (ACPI_SIZE) TargetObject->Package.Count *
400 sizeof (ACPI_OBJECT));
401 break;
402
403
404 default:
405 return (AE_BAD_PARAMETER);
406 }
407
408 Info->FreeSpace += ObjectSpace;
409 Info->Length += ObjectSpace;
410 return (Status);
411}
412
413
414/*******************************************************************************
415 *
416 * FUNCTION: AcpiUtCopyIpackageToEpackage
417 *
418 * PARAMETERS: InternalObject - Pointer to the object we are returning
419 * Buffer - Where the object is returned
420 * SpaceUsed - Where the object length is returned
421 *
422 * RETURN: Status
423 *
424 * DESCRIPTION: This function is called to place a package object in a user
425 * buffer. A package object by definition contains other objects.
426 *
427 * The buffer is assumed to have sufficient space for the object.
428 * The caller must have verified the buffer length needed using
429 * the AcpiUtGetObjectSize function before calling this function.
430 *
431 ******************************************************************************/
432
433static ACPI_STATUS
434AcpiUtCopyIpackageToEpackage (
435 ACPI_OPERAND_OBJECT *InternalObject,
436 UINT8 *Buffer,
437 ACPI_SIZE *SpaceUsed)
438{
439 ACPI_OBJECT *ExternalObject;
440 ACPI_STATUS Status;
441 ACPI_PKG_INFO Info;
442
443
444 ACPI_FUNCTION_TRACE (UtCopyIpackageToEpackage);
445
446
447 /*
448 * First package at head of the buffer
449 */
450 ExternalObject = ACPI_CAST_PTR (ACPI_OBJECT, Buffer);
451
452 /*
453 * Free space begins right after the first package
454 */
455 Info.Length = ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
456 Info.FreeSpace = Buffer + ACPI_ROUND_UP_TO_NATIVE_WORD (
457 sizeof (ACPI_OBJECT));
458 Info.ObjectSpace = 0;
459 Info.NumPackages = 1;
460
461 ExternalObject->Type = InternalObject->Common.Type;
462 ExternalObject->Package.Count = InternalObject->Package.Count;
463 ExternalObject->Package.Elements = ACPI_CAST_PTR (ACPI_OBJECT,
464 Info.FreeSpace);
465
466 /*
467 * Leave room for an array of ACPI_OBJECTS in the buffer
468 * and move the free space past it
469 */
470 Info.Length += (ACPI_SIZE) ExternalObject->Package.Count *
471 ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
472 Info.FreeSpace += ExternalObject->Package.Count *
473 ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
474
475 Status = AcpiUtWalkPackageTree (InternalObject, ExternalObject,
476 AcpiUtCopyIelementToEelement, &Info);
477
478 *SpaceUsed = Info.Length;
479 return_ACPI_STATUS (Status);
480}
481
482
483/*******************************************************************************
484 *
485 * FUNCTION: AcpiUtCopyIobjectToEobject
486 *
487 * PARAMETERS: InternalObject - The internal object to be converted
488 * RetBuffer - Where the object is returned
489 *
490 * RETURN: Status
491 *
492 * DESCRIPTION: This function is called to build an API object to be returned
493 * to the caller.
494 *
495 ******************************************************************************/
496
497ACPI_STATUS
498AcpiUtCopyIobjectToEobject (
499 ACPI_OPERAND_OBJECT *InternalObject,
500 ACPI_BUFFER *RetBuffer)
501{
502 ACPI_STATUS Status;
503
504
505 ACPI_FUNCTION_TRACE (UtCopyIobjectToEobject);
506
507
508 if (InternalObject->Common.Type == ACPI_TYPE_PACKAGE)
509 {
510 /*
511 * Package object: Copy all subobjects (including
512 * nested packages)
513 */
514 Status = AcpiUtCopyIpackageToEpackage (InternalObject,
515 RetBuffer->Pointer, &RetBuffer->Length);
516 }
517 else
518 {
519 /*
520 * Build a simple object (no nested objects)
521 */
522 Status = AcpiUtCopyIsimpleToEsimple (InternalObject,
523 ACPI_CAST_PTR (ACPI_OBJECT, RetBuffer->Pointer),
524 ACPI_ADD_PTR (UINT8, RetBuffer->Pointer,
525 ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT))),
526 &RetBuffer->Length);
527 /*
528 * build simple does not include the object size in the length
529 * so we add it in here
530 */
531 RetBuffer->Length += sizeof (ACPI_OBJECT);
532 }
533
534 return_ACPI_STATUS (Status);
535}
536
537
538/*******************************************************************************
539 *
540 * FUNCTION: AcpiUtCopyEsimpleToIsimple
541 *
542 * PARAMETERS: ExternalObject - The external object to be converted
543 * RetInternalObject - Where the internal object is returned
544 *
545 * RETURN: Status
546 *
547 * DESCRIPTION: This function copies an external object to an internal one.
548 * NOTE: Pointers can be copied, we don't need to copy data.
549 * (The pointers have to be valid in our address space no matter
550 * what we do with them!)
551 *
552 ******************************************************************************/
553
554static ACPI_STATUS
555AcpiUtCopyEsimpleToIsimple (
556 ACPI_OBJECT *ExternalObject,
557 ACPI_OPERAND_OBJECT **RetInternalObject)
558{
559 ACPI_OPERAND_OBJECT *InternalObject;
560
561
562 ACPI_FUNCTION_TRACE (UtCopyEsimpleToIsimple);
563
564
565 /*
566 * Simple types supported are: String, Buffer, Integer
567 */
568 switch (ExternalObject->Type)
569 {
570 case ACPI_TYPE_STRING:
571 case ACPI_TYPE_BUFFER:
572 case ACPI_TYPE_INTEGER:
573 case ACPI_TYPE_LOCAL_REFERENCE:
574
575 InternalObject = AcpiUtCreateInternalObject (
576 (UINT8) ExternalObject->Type);
577 if (!InternalObject)
578 {
579 return_ACPI_STATUS (AE_NO_MEMORY);
580 }
581 break;
582
583 case ACPI_TYPE_ANY: /* This is the case for a NULL object */
584
585 *RetInternalObject = NULL;
586 return_ACPI_STATUS (AE_OK);
587
588 default:
589 /* All other types are not supported */
590
591 ACPI_ERROR ((AE_INFO,
592 "Unsupported object type, cannot convert to internal object: %s",
593 AcpiUtGetTypeName (ExternalObject->Type)));
594
595 return_ACPI_STATUS (AE_SUPPORT);
596 }
597
598
599 /* Must COPY string and buffer contents */
600
601 switch (ExternalObject->Type)
602 {
603 case ACPI_TYPE_STRING:
604
605 InternalObject->String.Pointer =
606 ACPI_ALLOCATE_ZEROED ((ACPI_SIZE)
607 ExternalObject->String.Length + 1);
608
609 if (!InternalObject->String.Pointer)
610 {
611 goto ErrorExit;
612 }
613
614 ACPI_MEMCPY (InternalObject->String.Pointer,
615 ExternalObject->String.Pointer,
616 ExternalObject->String.Length);
617
618 InternalObject->String.Length = ExternalObject->String.Length;
619 break;
620
621
622 case ACPI_TYPE_BUFFER:
623
624 InternalObject->Buffer.Pointer =
625 ACPI_ALLOCATE_ZEROED (ExternalObject->Buffer.Length);
626 if (!InternalObject->Buffer.Pointer)
627 {
628 goto ErrorExit;
629 }
630
631 ACPI_MEMCPY (InternalObject->Buffer.Pointer,
632 ExternalObject->Buffer.Pointer,
633 ExternalObject->Buffer.Length);
634
635 InternalObject->Buffer.Length = ExternalObject->Buffer.Length;
636
637 /* Mark buffer data valid */
638
639 InternalObject->Buffer.Flags |= AOPOBJ_DATA_VALID;
640 break;
641
642
643 case ACPI_TYPE_INTEGER:
644
645 InternalObject->Integer.Value = ExternalObject->Integer.Value;
646 break;
647
648 case ACPI_TYPE_LOCAL_REFERENCE:
649
650 /* TBD: should validate incoming handle */
651
652 InternalObject->Reference.Class = ACPI_REFCLASS_NAME;
653 InternalObject->Reference.Node = ExternalObject->Reference.Handle;
654 break;
655
656 default:
657 /* Other types can't get here */
658 break;
659 }
660
661 *RetInternalObject = InternalObject;
662 return_ACPI_STATUS (AE_OK);
663
664
665ErrorExit:
666 AcpiUtRemoveReference (InternalObject);
667 return_ACPI_STATUS (AE_NO_MEMORY);
668}
669
670
671/*******************************************************************************
672 *
673 * FUNCTION: AcpiUtCopyEpackageToIpackage
674 *
675 * PARAMETERS: ExternalObject - The external object to be converted
676 * InternalObject - Where the internal object is returned
677 *
678 * RETURN: Status
679 *
680 * DESCRIPTION: Copy an external package object to an internal package.
681 * Handles nested packages.
682 *
683 ******************************************************************************/
684
685static ACPI_STATUS
686AcpiUtCopyEpackageToIpackage (
687 ACPI_OBJECT *ExternalObject,
688 ACPI_OPERAND_OBJECT **InternalObject)
689{
690 ACPI_STATUS Status = AE_OK;
691 ACPI_OPERAND_OBJECT *PackageObject;
692 ACPI_OPERAND_OBJECT **PackageElements;
693 UINT32 i;
694
695
696 ACPI_FUNCTION_TRACE (UtCopyEpackageToIpackage);
697
698
699 /* Create the package object */
700
701 PackageObject = AcpiUtCreatePackageObject (ExternalObject->Package.Count);
702 if (!PackageObject)
703 {
704 return_ACPI_STATUS (AE_NO_MEMORY);
705 }
706
707 PackageElements = PackageObject->Package.Elements;
708
709 /*
710 * Recursive implementation. Probably ok, since nested external packages
711 * as parameters should be very rare.
712 */
713 for (i = 0; i < ExternalObject->Package.Count; i++)
714 {
715 Status = AcpiUtCopyEobjectToIobject (
716 &ExternalObject->Package.Elements[i],
717 &PackageElements[i]);
718 if (ACPI_FAILURE (Status))
719 {
720 /* Truncate package and delete it */
721
722 PackageObject->Package.Count = i;
723 PackageElements[i] = NULL;
724 AcpiUtRemoveReference (PackageObject);
725 return_ACPI_STATUS (Status);
726 }
727 }
728
729 /* Mark package data valid */
730
731 PackageObject->Package.Flags |= AOPOBJ_DATA_VALID;
732
733 *InternalObject = PackageObject;
734 return_ACPI_STATUS (Status);
735}
736
737
738/*******************************************************************************
739 *
740 * FUNCTION: AcpiUtCopyEobjectToIobject
741 *
742 * PARAMETERS: ExternalObject - The external object to be converted
743 * InternalObject - Where the internal object is returned
744 *
745 * RETURN: Status
746 *
747 * DESCRIPTION: Converts an external object to an internal object.
748 *
749 ******************************************************************************/
750
751ACPI_STATUS
752AcpiUtCopyEobjectToIobject (
753 ACPI_OBJECT *ExternalObject,
754 ACPI_OPERAND_OBJECT **InternalObject)
755{
756 ACPI_STATUS Status;
757
758
759 ACPI_FUNCTION_TRACE (UtCopyEobjectToIobject);
760
761
762 if (ExternalObject->Type == ACPI_TYPE_PACKAGE)
763 {
764 Status = AcpiUtCopyEpackageToIpackage (ExternalObject, InternalObject);
765 }
766 else
767 {
768 /*
769 * Build a simple object (no nested objects)
770 */
771 Status = AcpiUtCopyEsimpleToIsimple (ExternalObject, InternalObject);
772 }
773
774 return_ACPI_STATUS (Status);
775}
776
777
778/*******************************************************************************
779 *
780 * FUNCTION: AcpiUtCopySimpleObject
781 *
782 * PARAMETERS: SourceDesc - The internal object to be copied
783 * DestDesc - New target object
784 *
785 * RETURN: Status
786 *
787 * DESCRIPTION: Simple copy of one internal object to another. Reference count
788 * of the destination object is preserved.
789 *
790 ******************************************************************************/
791
792static ACPI_STATUS
793AcpiUtCopySimpleObject (
794 ACPI_OPERAND_OBJECT *SourceDesc,
795 ACPI_OPERAND_OBJECT *DestDesc)
796{
797 UINT16 ReferenceCount;
798 ACPI_OPERAND_OBJECT *NextObject;
799 ACPI_STATUS Status;
800
801
802 /* Save fields from destination that we don't want to overwrite */
803
804 ReferenceCount = DestDesc->Common.ReferenceCount;
805 NextObject = DestDesc->Common.NextObject;
806
807 /* Copy the entire source object over the destination object*/
808
809 ACPI_MEMCPY ((char *) DestDesc, (char *) SourceDesc,
810 sizeof (ACPI_OPERAND_OBJECT));
811
812 /* Restore the saved fields */
813
814 DestDesc->Common.ReferenceCount = ReferenceCount;
815 DestDesc->Common.NextObject = NextObject;
816
817 /* New object is not static, regardless of source */
818
819 DestDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER;
820
821 /* Handle the objects with extra data */
822
823 switch (DestDesc->Common.Type)
824 {
825 case ACPI_TYPE_BUFFER:
826 /*
827 * Allocate and copy the actual buffer if and only if:
828 * 1) There is a valid buffer pointer
829 * 2) The buffer has a length > 0
830 */
831 if ((SourceDesc->Buffer.Pointer) &&
832 (SourceDesc->Buffer.Length))
833 {
834 DestDesc->Buffer.Pointer =
835 ACPI_ALLOCATE (SourceDesc->Buffer.Length);
836 if (!DestDesc->Buffer.Pointer)
837 {
838 return (AE_NO_MEMORY);
839 }
840
841 /* Copy the actual buffer data */
842
843 ACPI_MEMCPY (DestDesc->Buffer.Pointer,
844 SourceDesc->Buffer.Pointer,
845 SourceDesc->Buffer.Length);
846 }
847 break;
848
849 case ACPI_TYPE_STRING:
850 /*
851 * Allocate and copy the actual string if and only if:
852 * 1) There is a valid string pointer
853 * (Pointer to a NULL string is allowed)
854 */
855 if (SourceDesc->String.Pointer)
856 {
857 DestDesc->String.Pointer =
858 ACPI_ALLOCATE ((ACPI_SIZE) SourceDesc->String.Length + 1);
859 if (!DestDesc->String.Pointer)
860 {
861 return (AE_NO_MEMORY);
862 }
863
864 /* Copy the actual string data */
865
866 ACPI_MEMCPY (DestDesc->String.Pointer, SourceDesc->String.Pointer,
867 (ACPI_SIZE) SourceDesc->String.Length + 1);
868 }
869 break;
870
871 case ACPI_TYPE_LOCAL_REFERENCE:
872 /*
873 * We copied the reference object, so we now must add a reference
874 * to the object pointed to by the reference
875 *
876 * DDBHandle reference (from Load/LoadTable) is a special reference,
877 * it does not have a Reference.Object, so does not need to
878 * increase the reference count
879 */
880 if (SourceDesc->Reference.Class == ACPI_REFCLASS_TABLE)
881 {
882 break;
883 }
884
885 AcpiUtAddReference (SourceDesc->Reference.Object);
886 break;
887
888 case ACPI_TYPE_REGION:
889 /*
890 * We copied the Region Handler, so we now must add a reference
891 */
892 if (DestDesc->Region.Handler)
893 {
894 AcpiUtAddReference (DestDesc->Region.Handler);
895 }
896 break;
897
898 /*
899 * For Mutex and Event objects, we cannot simply copy the underlying
900 * OS object. We must create a new one.
901 */
902 case ACPI_TYPE_MUTEX:
903
904 Status = AcpiOsCreateMutex (&DestDesc->Mutex.OsMutex);
905 if (ACPI_FAILURE (Status))
906 {
907 return (Status);
908 }
909 break;
910
911 case ACPI_TYPE_EVENT:
912
913 Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
914 &DestDesc->Event.OsSemaphore);
915 if (ACPI_FAILURE (Status))
916 {
917 return (Status);
918 }
919 break;
920
921 default:
922 /* Nothing to do for other simple objects */
923 break;
924 }
925
926 return (AE_OK);
927}
928
929
930/*******************************************************************************
931 *
932 * FUNCTION: AcpiUtCopyIelementToIelement
933 *
934 * PARAMETERS: ACPI_PKG_CALLBACK
935 *
936 * RETURN: Status
937 *
938 * DESCRIPTION: Copy one package element to another package element
939 *
940 ******************************************************************************/
941
942static ACPI_STATUS
943AcpiUtCopyIelementToIelement (
944 UINT8 ObjectType,
945 ACPI_OPERAND_OBJECT *SourceObject,
946 ACPI_GENERIC_STATE *State,
947 void *Context)
948{
949 ACPI_STATUS Status = AE_OK;
950 UINT32 ThisIndex;
951 ACPI_OPERAND_OBJECT **ThisTargetPtr;
952 ACPI_OPERAND_OBJECT *TargetObject;
953
954
955 ACPI_FUNCTION_ENTRY ();
956
957
958 ThisIndex = State->Pkg.Index;
959 ThisTargetPtr = (ACPI_OPERAND_OBJECT **)
960 &State->Pkg.DestObject->Package.Elements[ThisIndex];
961
962 switch (ObjectType)
963 {
964 case ACPI_COPY_TYPE_SIMPLE:
965
966 /* A null source object indicates a (legal) null package element */
967
968 if (SourceObject)
969 {
970 /*
971 * This is a simple object, just copy it
972 */
973 TargetObject = AcpiUtCreateInternalObject (
974 SourceObject->Common.Type);
975 if (!TargetObject)
976 {
977 return (AE_NO_MEMORY);
978 }
979
980 Status = AcpiUtCopySimpleObject (SourceObject, TargetObject);
981 if (ACPI_FAILURE (Status))
982 {
983 goto ErrorExit;
984 }
985
986 *ThisTargetPtr = TargetObject;
987 }
988 else
989 {
990 /* Pass through a null element */
991
992 *ThisTargetPtr = NULL;
993 }
994 break;
995
996
997 case ACPI_COPY_TYPE_PACKAGE:
998
999 /*
1000 * This object is a package - go down another nesting level
1001 * Create and build the package object
1002 */
1003 TargetObject = AcpiUtCreatePackageObject (SourceObject->Package.Count);
1004 if (!TargetObject)
1005 {
1006 return (AE_NO_MEMORY);
1007 }
1008
1009 TargetObject->Common.Flags = SourceObject->Common.Flags;
1010
1011 /* Pass the new package object back to the package walk routine */
1012
1013 State->Pkg.ThisTargetObj = TargetObject;
1014
1015 /* Store the object pointer in the parent package object */
1016
1017 *ThisTargetPtr = TargetObject;
1018 break;
1019
1020
1021 default:
1022 return (AE_BAD_PARAMETER);
1023 }
1024
1025 return (Status);
1026
1027ErrorExit:
1028 AcpiUtRemoveReference (TargetObject);
1029 return (Status);
1030}
1031
1032
1033/*******************************************************************************
1034 *
1035 * FUNCTION: AcpiUtCopyIpackageToIpackage
1036 *
1037 * PARAMETERS: SourceObj - Pointer to the source package object
1038 * DestObj - Where the internal object is returned
1039 * WalkState - Current Walk state descriptor
1040 *
1041 * RETURN: Status
1042 *
1043 * DESCRIPTION: This function is called to copy an internal package object
1044 * into another internal package object.
1045 *
1046 ******************************************************************************/
1047
1048static ACPI_STATUS
1049AcpiUtCopyIpackageToIpackage (
1050 ACPI_OPERAND_OBJECT *SourceObj,
1051 ACPI_OPERAND_OBJECT *DestObj,
1052 ACPI_WALK_STATE *WalkState)
1053{
1054 ACPI_STATUS Status = AE_OK;
1055
1056
1057 ACPI_FUNCTION_TRACE (UtCopyIpackageToIpackage);
1058
1059
1060 DestObj->Common.Type = SourceObj->Common.Type;
1061 DestObj->Common.Flags = SourceObj->Common.Flags;
1062 DestObj->Package.Count = SourceObj->Package.Count;
1063
1064 /*
1065 * Create the object array and walk the source package tree
1066 */
1067 DestObj->Package.Elements = ACPI_ALLOCATE_ZEROED (
1068 ((ACPI_SIZE) SourceObj->Package.Count + 1) *
1069 sizeof (void *));
1070 if (!DestObj->Package.Elements)
1071 {
1072 ACPI_ERROR ((AE_INFO, "Package allocation failure"));
1073 return_ACPI_STATUS (AE_NO_MEMORY);
1074 }
1075
1076 /*
1077 * Copy the package element-by-element by walking the package "tree".
1078 * This handles nested packages of arbitrary depth.
1079 */
1080 Status = AcpiUtWalkPackageTree (SourceObj, DestObj,
1081 AcpiUtCopyIelementToIelement, WalkState);
1082 if (ACPI_FAILURE (Status))
1083 {
1084 /* On failure, delete the destination package object */
1085
1086 AcpiUtRemoveReference (DestObj);
1087 }
1088
1089 return_ACPI_STATUS (Status);
1090}
1091
1092
1093/*******************************************************************************
1094 *
1095 * FUNCTION: AcpiUtCopyIobjectToIobject
1096 *
1097 * PARAMETERS: SourceDesc - The internal object to be copied
1098 * DestDesc - Where the copied object is returned
1099 * WalkState - Current walk state
1100 *
1101 * RETURN: Status
1102 *
1103 * DESCRIPTION: Copy an internal object to a new internal object
1104 *
1105 ******************************************************************************/
1106
1107ACPI_STATUS
1108AcpiUtCopyIobjectToIobject (
1109 ACPI_OPERAND_OBJECT *SourceDesc,
1110 ACPI_OPERAND_OBJECT **DestDesc,
1111 ACPI_WALK_STATE *WalkState)
1112{
1113 ACPI_STATUS Status = AE_OK;
1114
1115
1116 ACPI_FUNCTION_TRACE (UtCopyIobjectToIobject);
1117
1118
1119 /* Create the top level object */
1120
1121 *DestDesc = AcpiUtCreateInternalObject (SourceDesc->Common.Type);
1122 if (!*DestDesc)
1123 {
1124 return_ACPI_STATUS (AE_NO_MEMORY);
1125 }
1126
1127 /* Copy the object and possible subobjects */
1128
1129 if (SourceDesc->Common.Type == ACPI_TYPE_PACKAGE)
1130 {
1131 Status = AcpiUtCopyIpackageToIpackage (SourceDesc, *DestDesc,
1132 WalkState);
1133 }
1134 else
1135 {
1136 Status = AcpiUtCopySimpleObject (SourceDesc, *DestDesc);
1137 }
1138
1139 return_ACPI_STATUS (Status);
1140}
1141
1142