utcopy.c revision 82367
1/****************************************************************************** 2 * 3 * Module Name: utcopy - Internal to external object translation utilities 4 * $Revision: 77 $ 5 * 6 *****************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117#define __UTCOPY_C__ 118 119#include "acpi.h" 120#include "acinterp.h" 121#include "acnamesp.h" 122#include "amlcode.h" 123 124 125#define _COMPONENT ACPI_UTILITIES 126 MODULE_NAME ("utcopy") 127 128 129/******************************************************************************* 130 * 131 * FUNCTION: AcpiUtCopyIsimpleToEsimple 132 * 133 * PARAMETERS: *InternalObject - Pointer to the object we are examining 134 * *Buffer - Where the object is returned 135 * *SpaceUsed - Where the data length is returned 136 * 137 * RETURN: Status 138 * 139 * DESCRIPTION: This function is called to place a simple object in a user 140 * buffer. 141 * 142 * The buffer is assumed to have sufficient space for the object. 143 * 144 ******************************************************************************/ 145 146static ACPI_STATUS 147AcpiUtCopyIsimpleToEsimple ( 148 ACPI_OPERAND_OBJECT *InternalObject, 149 ACPI_OBJECT *ExternalObject, 150 UINT8 *DataSpace, 151 UINT32 *BufferSpaceUsed) 152{ 153 UINT32 Length = 0; 154 ACPI_STATUS Status = AE_OK; 155 156 157 FUNCTION_TRACE ("UtCopyIsimpleToEsimple"); 158 159 160 /* 161 * Check for NULL object case (could be an uninitialized 162 * package element 163 */ 164 165 if (!InternalObject) 166 { 167 *BufferSpaceUsed = 0; 168 return_ACPI_STATUS (AE_OK); 169 } 170 171 /* Always clear the external object */ 172 173 MEMSET (ExternalObject, 0, sizeof (ACPI_OBJECT)); 174 175 /* 176 * In general, the external object will be the same type as 177 * the internal object 178 */ 179 180 ExternalObject->Type = InternalObject->Common.Type; 181 182 /* However, only a limited number of external types are supported */ 183 184 switch (InternalObject->Common.Type) 185 { 186 187 case ACPI_TYPE_STRING: 188 189 Length = InternalObject->String.Length + 1; 190 ExternalObject->String.Length = InternalObject->String.Length; 191 ExternalObject->String.Pointer = (NATIVE_CHAR *) DataSpace; 192 MEMCPY ((void *) DataSpace, (void *) InternalObject->String.Pointer, Length); 193 break; 194 195 196 case ACPI_TYPE_BUFFER: 197 198 Length = InternalObject->Buffer.Length; 199 ExternalObject->Buffer.Length = InternalObject->Buffer.Length; 200 ExternalObject->Buffer.Pointer = DataSpace; 201 MEMCPY ((void *) DataSpace, (void *) InternalObject->Buffer.Pointer, Length); 202 break; 203 204 205 case ACPI_TYPE_INTEGER: 206 207 ExternalObject->Integer.Value= InternalObject->Integer.Value; 208 break; 209 210 211 case INTERNAL_TYPE_REFERENCE: 212 213 /* 214 * This is an object reference. Attempt to dereference it. 215 */ 216 217 switch (InternalObject->Reference.Opcode) 218 { 219 case AML_ZERO_OP: 220 ExternalObject->Type = ACPI_TYPE_INTEGER; 221 ExternalObject->Integer.Value = 0; 222 break; 223 224 case AML_ONE_OP: 225 ExternalObject->Type = ACPI_TYPE_INTEGER; 226 ExternalObject->Integer.Value = 1; 227 break; 228 229 case AML_ONES_OP: 230 ExternalObject->Type = ACPI_TYPE_INTEGER; 231 ExternalObject->Integer.Value = ACPI_INTEGER_MAX; 232 break; 233 234 case AML_INT_NAMEPATH_OP: 235 /* 236 * This is a named reference, get the string. We already know that 237 * we have room for it, use max length 238 */ 239 Length = MAX_STRING_LENGTH; 240 ExternalObject->Type = ACPI_TYPE_STRING; 241 ExternalObject->String.Pointer = (NATIVE_CHAR *) DataSpace; 242 Status = AcpiNsHandleToPathname ((ACPI_HANDLE *) InternalObject->Reference.Node, 243 &Length, (char *) DataSpace); 244 245 /* Converted (external) string length is returned from above */ 246 247 ExternalObject->String.Length = Length; 248 break; 249 250 default: 251 /* 252 * Use the object type of "Any" to indicate a reference 253 * to object containing a handle to an ACPI named object. 254 */ 255 ExternalObject->Type = ACPI_TYPE_ANY; 256 ExternalObject->Reference.Handle = InternalObject->Reference.Node; 257 break; 258 } 259 break; 260 261 262 case ACPI_TYPE_PROCESSOR: 263 264 ExternalObject->Processor.ProcId = InternalObject->Processor.ProcId; 265 ExternalObject->Processor.PblkAddress = InternalObject->Processor.Address; 266 ExternalObject->Processor.PblkLength = InternalObject->Processor.Length; 267 break; 268 269 270 case ACPI_TYPE_POWER: 271 272 ExternalObject->PowerResource.SystemLevel = 273 InternalObject->PowerResource.SystemLevel; 274 275 ExternalObject->PowerResource.ResourceOrder = 276 InternalObject->PowerResource.ResourceOrder; 277 break; 278 279 280 default: 281 /* 282 * There is no corresponding external object type 283 */ 284 return_ACPI_STATUS (AE_SUPPORT); 285 break; 286 } 287 288 289 *BufferSpaceUsed = (UINT32) ROUND_UP_TO_NATIVE_WORD (Length); 290 291 return_ACPI_STATUS (Status); 292} 293 294 295/******************************************************************************* 296 * 297 * FUNCTION: AcpiUtCopyIelementToEelement 298 * 299 * PARAMETERS: ACPI_PKG_CALLBACK 300 * 301 * RETURN: Status 302 * 303 * DESCRIPTION: Copy one package element to another package element 304 * 305 ******************************************************************************/ 306 307ACPI_STATUS 308AcpiUtCopyIelementToEelement ( 309 UINT8 ObjectType, 310 ACPI_OPERAND_OBJECT *SourceObject, 311 ACPI_GENERIC_STATE *State, 312 void *Context) 313{ 314 ACPI_STATUS Status = AE_OK; 315 ACPI_PKG_INFO *Info = (ACPI_PKG_INFO *) Context; 316 UINT32 ObjectSpace; 317 UINT32 ThisIndex; 318 ACPI_OBJECT *TargetObject; 319 320 321 ThisIndex = State->Pkg.Index; 322 TargetObject = (ACPI_OBJECT *) 323 &((ACPI_OBJECT *)(State->Pkg.DestObject))->Package.Elements[ThisIndex]; 324 325 switch (ObjectType) 326 { 327 case ACPI_COPY_TYPE_SIMPLE: 328 329 /* 330 * This is a simple or null object -- get the size 331 */ 332 Status = AcpiUtCopyIsimpleToEsimple (SourceObject, 333 TargetObject, Info->FreeSpace, &ObjectSpace); 334 if (ACPI_FAILURE (Status)) 335 { 336 return (Status); 337 } 338 339 break; 340 341 case ACPI_COPY_TYPE_PACKAGE: 342 343 /* 344 * Build the package object 345 */ 346 TargetObject->Type = ACPI_TYPE_PACKAGE; 347 TargetObject->Package.Count = SourceObject->Package.Count; 348 TargetObject->Package.Elements = (ACPI_OBJECT *) Info->FreeSpace; 349 350 /* 351 * Pass the new package object back to the package walk routine 352 */ 353 State->Pkg.ThisTargetObj = TargetObject; 354 355 /* 356 * Save space for the array of objects (Package elements) 357 * update the buffer length counter 358 */ 359 ObjectSpace = (UINT32) ROUND_UP_TO_NATIVE_WORD ( 360 TargetObject->Package.Count * sizeof (ACPI_OBJECT)); 361 break; 362 363 default: 364 return (AE_BAD_PARAMETER); 365 } 366 367 368 Info->FreeSpace += ObjectSpace; 369 Info->Length += ObjectSpace; 370 371 return (Status); 372} 373 374 375/******************************************************************************* 376 * 377 * FUNCTION: AcpiUtCopyIpackageToEpackage 378 * 379 * PARAMETERS: *InternalObject - Pointer to the object we are returning 380 * *Buffer - Where the object is returned 381 * *SpaceUsed - Where the object length is returned 382 * 383 * RETURN: Status 384 * 385 * DESCRIPTION: This function is called to place a package object in a user 386 * buffer. A package object by definition contains other objects. 387 * 388 * The buffer is assumed to have sufficient space for the object. 389 * The caller must have verified the buffer length needed using the 390 * AcpiUtGetObjectSize function before calling this function. 391 * 392 ******************************************************************************/ 393 394static ACPI_STATUS 395AcpiUtCopyIpackageToEpackage ( 396 ACPI_OPERAND_OBJECT *InternalObject, 397 UINT8 *Buffer, 398 UINT32 *SpaceUsed) 399{ 400 ACPI_OBJECT *ExternalObject; 401 ACPI_STATUS Status; 402 ACPI_PKG_INFO Info; 403 404 405 FUNCTION_TRACE ("UtCopyIpackageToEpackage"); 406 407 408 /* 409 * First package at head of the buffer 410 */ 411 ExternalObject = (ACPI_OBJECT *) Buffer; 412 413 /* 414 * Free space begins right after the first package 415 */ 416 Info.Length = 0; 417 Info.ObjectSpace = 0; 418 Info.NumPackages = 1; 419 Info.FreeSpace = Buffer + ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT)); 420 421 422 ExternalObject->Type = InternalObject->Common.Type; 423 ExternalObject->Package.Count = InternalObject->Package.Count; 424 ExternalObject->Package.Elements = (ACPI_OBJECT *) Info.FreeSpace; 425 426 427 /* 428 * Build an array of ACPI_OBJECTS in the buffer 429 * and move the free space past it 430 */ 431 432 Info.FreeSpace += ExternalObject->Package.Count * 433 ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT)); 434 435 436 Status = AcpiUtWalkPackageTree (InternalObject, ExternalObject, 437 AcpiUtCopyIelementToEelement, &Info); 438 439 *SpaceUsed = Info.Length; 440 441 return_ACPI_STATUS (Status); 442 443} 444 445/******************************************************************************* 446 * 447 * FUNCTION: AcpiUtCopyIobjectToEobject 448 * 449 * PARAMETERS: *InternalObject - The internal object to be converted 450 * *BufferPtr - Where the object is returned 451 * 452 * RETURN: Status 453 * 454 * DESCRIPTION: This function is called to build an API object to be returned to 455 * the caller. 456 * 457 ******************************************************************************/ 458 459ACPI_STATUS 460AcpiUtCopyIobjectToEobject ( 461 ACPI_OPERAND_OBJECT *InternalObject, 462 ACPI_BUFFER *RetBuffer) 463{ 464 ACPI_STATUS Status; 465 466 467 FUNCTION_TRACE ("UtCopyIobjectToEobject"); 468 469 470 if (IS_THIS_OBJECT_TYPE (InternalObject, ACPI_TYPE_PACKAGE)) 471 { 472 /* 473 * Package object: Copy all subobjects (including 474 * nested packages) 475 */ 476 Status = AcpiUtCopyIpackageToEpackage (InternalObject, 477 RetBuffer->Pointer, &RetBuffer->Length); 478 } 479 480 else 481 { 482 /* 483 * Build a simple object (no nested objects) 484 */ 485 Status = AcpiUtCopyIsimpleToEsimple (InternalObject, 486 (ACPI_OBJECT *) RetBuffer->Pointer, 487 ((UINT8 *) RetBuffer->Pointer + 488 ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT))), 489 &RetBuffer->Length); 490 /* 491 * build simple does not include the object size in the length 492 * so we add it in here 493 */ 494 RetBuffer->Length += sizeof (ACPI_OBJECT); 495 } 496 497 return_ACPI_STATUS (Status); 498} 499 500 501/******************************************************************************* 502 * 503 * FUNCTION: AcpiUtCopyEsimpleToIsimple 504 * 505 * PARAMETERS: *ExternalObject - The external object to be converted 506 * *InternalObject - Where the internal object is returned 507 * 508 * RETURN: Status 509 * 510 * DESCRIPTION: This function copies an external object to an internal one. 511 * NOTE: Pointers can be copied, we don't need to copy data. 512 * (The pointers have to be valid in our address space no matter 513 * what we do with them!) 514 * 515 ******************************************************************************/ 516 517ACPI_STATUS 518AcpiUtCopyEsimpleToIsimple ( 519 ACPI_OBJECT *ExternalObject, 520 ACPI_OPERAND_OBJECT *InternalObject) 521{ 522 523 FUNCTION_TRACE ("UtCopyEsimpleToIsimple"); 524 525 526 InternalObject->Common.Type = (UINT8) ExternalObject->Type; 527 528 /* 529 * Simple types supported are: String, Buffer, Integer 530 */ 531 switch (ExternalObject->Type) 532 { 533 534 case ACPI_TYPE_STRING: 535 536 InternalObject->String.Length = ExternalObject->String.Length; 537 InternalObject->String.Pointer = ExternalObject->String.Pointer; 538 break; 539 540 541 case ACPI_TYPE_BUFFER: 542 543 InternalObject->Buffer.Length = ExternalObject->Buffer.Length; 544 InternalObject->Buffer.Pointer = ExternalObject->Buffer.Pointer; 545 break; 546 547 548 case ACPI_TYPE_INTEGER: 549 550 InternalObject->Integer.Value = ExternalObject->Integer.Value; 551 break; 552 553 default: 554 /* 555 * Whatever other type -- it is not supported 556 */ 557 return_ACPI_STATUS (AE_SUPPORT); 558 break; 559 } 560 561 562 return_ACPI_STATUS (AE_OK); 563} 564 565 566#ifdef ACPI_FUTURE_IMPLEMENTATION 567 568/* Code to convert packages that are parameters to control methods */ 569 570/******************************************************************************* 571 * 572 * FUNCTION: AcpiUtCopyEpackageToIpackage 573 * 574 * PARAMETERS: *InternalObject - Pointer to the object we are returning 575 * *Buffer - Where the object is returned 576 * *SpaceUsed - Where the length of the object is returned 577 * 578 * RETURN: Status - the status of the call 579 * 580 * DESCRIPTION: This function is called to place a package object in a user 581 * buffer. A package object by definition contains other objects. 582 * 583 * The buffer is assumed to have sufficient space for the object. 584 * The caller must have verified the buffer length needed using the 585 * AcpiUtGetObjectSize function before calling this function. 586 * 587 ******************************************************************************/ 588 589static ACPI_STATUS 590AcpiUtCopyEpackageToIpackage ( 591 ACPI_OPERAND_OBJECT *InternalObject, 592 UINT8 *Buffer, 593 UINT32 *SpaceUsed) 594{ 595 UINT8 *FreeSpace; 596 ACPI_OBJECT *ExternalObject; 597 UINT32 Length = 0; 598 UINT32 ThisIndex; 599 UINT32 ObjectSpace = 0; 600 ACPI_OPERAND_OBJECT *ThisInternalObj; 601 ACPI_OBJECT *ThisExternalObj; 602 603 604 FUNCTION_TRACE ("UtCopyEpackageToIpackage"); 605 606 607 /* 608 * First package at head of the buffer 609 */ 610 ExternalObject = (ACPI_OBJECT *)Buffer; 611 612 /* 613 * Free space begins right after the first package 614 */ 615 FreeSpace = Buffer + sizeof(ACPI_OBJECT); 616 617 618 ExternalObject->Type = InternalObject->Common.Type; 619 ExternalObject->Package.Count = InternalObject->Package.Count; 620 ExternalObject->Package.Elements = (ACPI_OBJECT *)FreeSpace; 621 622 623 /* 624 * Build an array of ACPI_OBJECTS in the buffer 625 * and move the free space past it 626 */ 627 628 FreeSpace += ExternalObject->Package.Count * sizeof(ACPI_OBJECT); 629 630 631 /* Call WalkPackage */ 632 633} 634 635#endif /* Future implementation */ 636 637 638/******************************************************************************* 639 * 640 * FUNCTION: AcpiUtCopyEobjectToIobject 641 * 642 * PARAMETERS: *InternalObject - The external object to be converted 643 * *BufferPtr - Where the internal object is returned 644 * 645 * RETURN: Status - the status of the call 646 * 647 * DESCRIPTION: Converts an external object to an internal object. 648 * 649 ******************************************************************************/ 650 651ACPI_STATUS 652AcpiUtCopyEobjectToIobject ( 653 ACPI_OBJECT *ExternalObject, 654 ACPI_OPERAND_OBJECT *InternalObject) 655{ 656 ACPI_STATUS Status; 657 658 659 FUNCTION_TRACE ("UtCopyEobjectToIobject"); 660 661 662 if (ExternalObject->Type == ACPI_TYPE_PACKAGE) 663 { 664 /* 665 * Package objects contain other objects (which can be objects) 666 * buildpackage does it all 667 * 668 * TBD: Package conversion must be completed and tested 669 * NOTE: this code converts packages as input parameters to 670 * control methods only. This is a very, very rare case. 671 */ 672/* 673 Status = AcpiUtCopyEpackageToIpackage(InternalObject, 674 RetBuffer->Pointer, 675 &RetBuffer->Length); 676*/ 677 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 678 "Packages as parameters not implemented!\n")); 679 680 return_ACPI_STATUS (AE_NOT_IMPLEMENTED); 681 } 682 683 else 684 { 685 /* 686 * Build a simple object (no nested objects) 687 */ 688 Status = AcpiUtCopyEsimpleToIsimple (ExternalObject, InternalObject); 689 /* 690 * build simple does not include the object size in the length 691 * so we add it in here 692 */ 693 } 694 695 return_ACPI_STATUS (Status); 696} 697 698 699/******************************************************************************* 700 * 701 * FUNCTION: AcpiUtCopyIelementToIelement 702 * 703 * PARAMETERS: ACPI_PKG_CALLBACK 704 * 705 * RETURN: Status - the status of the call 706 * 707 * DESCRIPTION: Copy one package element to another package element 708 * 709 ******************************************************************************/ 710 711ACPI_STATUS 712AcpiUtCopyIelementToIelement ( 713 UINT8 ObjectType, 714 ACPI_OPERAND_OBJECT *SourceObject, 715 ACPI_GENERIC_STATE *State, 716 void *Context) 717{ 718 ACPI_STATUS Status = AE_OK; 719 UINT32 ThisIndex; 720 ACPI_OPERAND_OBJECT **ThisTargetPtr; 721 ACPI_OPERAND_OBJECT *TargetObject; 722 723 724 ThisIndex = State->Pkg.Index; 725 ThisTargetPtr = (ACPI_OPERAND_OBJECT **) 726 &State->Pkg.DestObject->Package.Elements[ThisIndex]; 727 728 switch (ObjectType) 729 { 730 case 0: 731 732 /* 733 * This is a simple object, just copy it 734 */ 735 TargetObject = AcpiUtCreateInternalObject (SourceObject->Common.Type); 736 if (!TargetObject) 737 { 738 return (AE_NO_MEMORY); 739 } 740 741 Status = AcpiExStoreObjectToObject (SourceObject, TargetObject, 742 (ACPI_WALK_STATE *) Context); 743 if (ACPI_FAILURE (Status)) 744 { 745 return (Status); 746 } 747 748 *ThisTargetPtr = TargetObject; 749 break; 750 751 752 case 1: 753 /* 754 * This object is a package - go down another nesting level 755 * Create and build the package object 756 */ 757 TargetObject = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE); 758 if (!TargetObject) 759 { 760 /* TBD: must delete package created up to this point */ 761 762 return (AE_NO_MEMORY); 763 } 764 765 TargetObject->Package.Count = SourceObject->Package.Count; 766 767 /* 768 * Pass the new package object back to the package walk routine 769 */ 770 State->Pkg.ThisTargetObj = TargetObject; 771 772 /* 773 * Store the object pointer in the parent package object 774 */ 775 *ThisTargetPtr = TargetObject; 776 break; 777 778 default: 779 return (AE_BAD_PARAMETER); 780 } 781 782 783 return (Status); 784} 785 786 787/******************************************************************************* 788 * 789 * FUNCTION: AcpiUtCopyIpackageToIpackage 790 * 791 * PARAMETERS: *SourceObj - Pointer to the source package object 792 * *DestObj - Where the internal object is returned 793 * 794 * RETURN: Status - the status of the call 795 * 796 * DESCRIPTION: This function is called to copy an internal package object 797 * into another internal package object. 798 * 799 ******************************************************************************/ 800 801ACPI_STATUS 802AcpiUtCopyIpackageToIpackage ( 803 ACPI_OPERAND_OBJECT *SourceObj, 804 ACPI_OPERAND_OBJECT *DestObj, 805 ACPI_WALK_STATE *WalkState) 806{ 807 ACPI_STATUS Status = AE_OK; 808 809 FUNCTION_TRACE ("UtCopyIpackageToIpackage"); 810 811 812 DestObj->Common.Type = SourceObj->Common.Type; 813 DestObj->Package.Count = SourceObj->Package.Count; 814 815 816 /* 817 * Create the object array and walk the source package tree 818 */ 819 820 DestObj->Package.Elements = ACPI_MEM_CALLOCATE ((SourceObj->Package.Count + 1) * 821 sizeof (void *)); 822 DestObj->Package.NextElement = DestObj->Package.Elements; 823 824 if (!DestObj->Package.Elements) 825 { 826 REPORT_ERROR ( 827 ("AmlBuildCopyInternalPackageObject: Package allocation failure\n")); 828 return_ACPI_STATUS (AE_NO_MEMORY); 829 } 830 831 832 Status = AcpiUtWalkPackageTree (SourceObj, DestObj, 833 AcpiUtCopyIelementToIelement, WalkState); 834 835 return_ACPI_STATUS (Status); 836} 837 838