utcopy.c revision 77424
1/****************************************************************************** 2 * 3 * Module Name: utcopy - Internal to external object translation utilities 4 * $Revision: 74 $ 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]; 324 325 326 switch (ObjectType) 327 { 328 case ACPI_COPY_TYPE_SIMPLE: 329 330 /* 331 * This is a simple or null object -- get the size 332 */ 333 334 Status = AcpiUtCopyIsimpleToEsimple (SourceObject, 335 TargetObject, Info->FreeSpace, &ObjectSpace); 336 if (ACPI_FAILURE (Status)) 337 { 338 return (Status); 339 } 340 341 break; 342 343 case ACPI_COPY_TYPE_PACKAGE: 344 345 /* 346 * Build the package object 347 */ 348 TargetObject->Type = ACPI_TYPE_PACKAGE; 349 TargetObject->Package.Count = SourceObject->Package.Count; 350 TargetObject->Package.Elements = (ACPI_OBJECT *) Info->FreeSpace; 351 352 /* 353 * Pass the new package object back to the package walk routine 354 */ 355 State->Pkg.ThisTargetObj = TargetObject; 356 357 /* 358 * Save space for the array of objects (Package elements) 359 * update the buffer length counter 360 */ 361 ObjectSpace = (UINT32) ROUND_UP_TO_NATIVE_WORD ( 362 TargetObject->Package.Count * sizeof (ACPI_OBJECT)); 363 break; 364 365 default: 366 return (AE_BAD_PARAMETER); 367 } 368 369 370 Info->FreeSpace += ObjectSpace; 371 Info->Length += ObjectSpace; 372 373 return (Status); 374} 375 376 377/******************************************************************************* 378 * 379 * FUNCTION: AcpiUtCopyIpackageToEpackage 380 * 381 * PARAMETERS: *InternalObject - Pointer to the object we are returning 382 * *Buffer - Where the object is returned 383 * *SpaceUsed - Where the object length is returned 384 * 385 * RETURN: Status 386 * 387 * DESCRIPTION: This function is called to place a package object in a user 388 * buffer. A package object by definition contains other objects. 389 * 390 * The buffer is assumed to have sufficient space for the object. 391 * The caller must have verified the buffer length needed using the 392 * AcpiUtGetObjectSize function before calling this function. 393 * 394 ******************************************************************************/ 395 396static ACPI_STATUS 397AcpiUtCopyIpackageToEpackage ( 398 ACPI_OPERAND_OBJECT *InternalObject, 399 UINT8 *Buffer, 400 UINT32 *SpaceUsed) 401{ 402 ACPI_OBJECT *ExternalObject; 403 ACPI_STATUS Status; 404 ACPI_PKG_INFO Info; 405 406 407 FUNCTION_TRACE ("UtCopyIpackageToEpackage"); 408 409 410 /* 411 * First package at head of the buffer 412 */ 413 ExternalObject = (ACPI_OBJECT *) Buffer; 414 415 /* 416 * Free space begins right after the first package 417 */ 418 Info.Length = 0; 419 Info.ObjectSpace = 0; 420 Info.NumPackages = 1; 421 Info.FreeSpace = Buffer + ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT)); 422 423 424 ExternalObject->Type = InternalObject->Common.Type; 425 ExternalObject->Package.Count = InternalObject->Package.Count; 426 ExternalObject->Package.Elements = (ACPI_OBJECT *) Info.FreeSpace; 427 428 429 /* 430 * Build an array of ACPI_OBJECTS in the buffer 431 * and move the free space past it 432 */ 433 434 Info.FreeSpace += ExternalObject->Package.Count * 435 ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT)); 436 437 438 Status = AcpiUtWalkPackageTree (InternalObject, ExternalObject, 439 AcpiUtCopyIelementToEelement, &Info); 440 441 *SpaceUsed = Info.Length; 442 443 return_ACPI_STATUS (Status); 444 445} 446 447/******************************************************************************* 448 * 449 * FUNCTION: AcpiUtCopyIobjectToEobject 450 * 451 * PARAMETERS: *InternalObject - The internal object to be converted 452 * *BufferPtr - Where the object is returned 453 * 454 * RETURN: Status 455 * 456 * DESCRIPTION: This function is called to build an API object to be returned to 457 * the caller. 458 * 459 ******************************************************************************/ 460 461ACPI_STATUS 462AcpiUtCopyIobjectToEobject ( 463 ACPI_OPERAND_OBJECT *InternalObject, 464 ACPI_BUFFER *RetBuffer) 465{ 466 ACPI_STATUS Status; 467 468 469 FUNCTION_TRACE ("UtCopyIobjectToEobject"); 470 471 472 if (IS_THIS_OBJECT_TYPE (InternalObject, ACPI_TYPE_PACKAGE)) 473 { 474 /* 475 * Package object: Copy all subobjects (including 476 * nested packages) 477 */ 478 Status = AcpiUtCopyIpackageToEpackage (InternalObject, 479 RetBuffer->Pointer, &RetBuffer->Length); 480 } 481 482 else 483 { 484 /* 485 * Build a simple object (no nested objects) 486 */ 487 Status = AcpiUtCopyIsimpleToEsimple (InternalObject, 488 (ACPI_OBJECT *) RetBuffer->Pointer, 489 ((UINT8 *) RetBuffer->Pointer + 490 ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT))), 491 &RetBuffer->Length); 492 /* 493 * build simple does not include the object size in the length 494 * so we add it in here 495 */ 496 RetBuffer->Length += sizeof (ACPI_OBJECT); 497 } 498 499 return_ACPI_STATUS (Status); 500} 501 502 503/******************************************************************************* 504 * 505 * FUNCTION: AcpiUtCopyEsimpleToIsimple 506 * 507 * PARAMETERS: *ExternalObject - The external object to be converted 508 * *InternalObject - Where the internal object is returned 509 * 510 * RETURN: Status 511 * 512 * DESCRIPTION: This function copies an external object to an internal one. 513 * NOTE: Pointers can be copied, we don't need to copy data. 514 * (The pointers have to be valid in our address space no matter 515 * what we do with them!) 516 * 517 ******************************************************************************/ 518 519ACPI_STATUS 520AcpiUtCopyEsimpleToIsimple ( 521 ACPI_OBJECT *ExternalObject, 522 ACPI_OPERAND_OBJECT *InternalObject) 523{ 524 525 FUNCTION_TRACE ("UtCopyEsimpleToIsimple"); 526 527 528 InternalObject->Common.Type = (UINT8) ExternalObject->Type; 529 530 switch (ExternalObject->Type) 531 { 532 533 case ACPI_TYPE_STRING: 534 535 InternalObject->String.Length = ExternalObject->String.Length; 536 InternalObject->String.Pointer = ExternalObject->String.Pointer; 537 break; 538 539 540 case ACPI_TYPE_BUFFER: 541 542 InternalObject->Buffer.Length = ExternalObject->Buffer.Length; 543 InternalObject->Buffer.Pointer = ExternalObject->Buffer.Pointer; 544 break; 545 546 547 case ACPI_TYPE_INTEGER: 548 /* 549 * Number is included in the object itself 550 */ 551 InternalObject->Integer.Value = ExternalObject->Integer.Value; 552 break; 553 554 555 default: 556 return_ACPI_STATUS (AE_CTRL_RETURN_VALUE); 557 break; 558 } 559 560 561 return_ACPI_STATUS (AE_OK); 562} 563 564 565#ifdef ACPI_FUTURE_IMPLEMENTATION 566 567/* Code to convert packages that are parameters to control methods */ 568 569/******************************************************************************* 570 * 571 * FUNCTION: AcpiUtCopyEpackageToIpackage 572 * 573 * PARAMETERS: *InternalObject - Pointer to the object we are returning 574 * *Buffer - Where the object is returned 575 * *SpaceUsed - Where the length of the object is returned 576 * 577 * RETURN: Status - the status of the call 578 * 579 * DESCRIPTION: This function is called to place a package object in a user 580 * buffer. A package object by definition contains other objects. 581 * 582 * The buffer is assumed to have sufficient space for the object. 583 * The caller must have verified the buffer length needed using the 584 * AcpiUtGetObjectSize function before calling this function. 585 * 586 ******************************************************************************/ 587 588static ACPI_STATUS 589AcpiUtCopyEpackageToIpackage ( 590 ACPI_OPERAND_OBJECT *InternalObject, 591 UINT8 *Buffer, 592 UINT32 *SpaceUsed) 593{ 594 UINT8 *FreeSpace; 595 ACPI_OBJECT *ExternalObject; 596 UINT32 Length = 0; 597 UINT32 ThisIndex; 598 UINT32 ObjectSpace = 0; 599 ACPI_OPERAND_OBJECT *ThisInternalObj; 600 ACPI_OBJECT *ThisExternalObj; 601 602 603 FUNCTION_TRACE ("UtCopyEpackageToIpackage"); 604 605 606 /* 607 * First package at head of the buffer 608 */ 609 ExternalObject = (ACPI_OBJECT *)Buffer; 610 611 /* 612 * Free space begins right after the first package 613 */ 614 FreeSpace = Buffer + sizeof(ACPI_OBJECT); 615 616 617 ExternalObject->Type = InternalObject->Common.Type; 618 ExternalObject->Package.Count = InternalObject->Package.Count; 619 ExternalObject->Package.Elements = (ACPI_OBJECT *)FreeSpace; 620 621 622 /* 623 * Build an array of ACPI_OBJECTS in the buffer 624 * and move the free space past it 625 */ 626 627 FreeSpace += ExternalObject->Package.Count * sizeof(ACPI_OBJECT); 628 629 630 /* Call WalkPackage */ 631 632} 633 634#endif /* Future implementation */ 635 636 637/******************************************************************************* 638 * 639 * FUNCTION: AcpiUtCopyEobjectToIobject 640 * 641 * PARAMETERS: *InternalObject - The external object to be converted 642 * *BufferPtr - Where the internal object is returned 643 * 644 * RETURN: Status - the status of the call 645 * 646 * DESCRIPTION: Converts an external object to an internal object. 647 * 648 ******************************************************************************/ 649 650ACPI_STATUS 651AcpiUtCopyEobjectToIobject ( 652 ACPI_OBJECT *ExternalObject, 653 ACPI_OPERAND_OBJECT *InternalObject) 654{ 655 ACPI_STATUS Status; 656 657 658 FUNCTION_TRACE ("UtCopyEobjectToIobject"); 659 660 661 if (ExternalObject->Type == ACPI_TYPE_PACKAGE) 662 { 663 /* 664 * Package objects contain other objects (which can be objects) 665 * buildpackage does it all 666 * 667 * TBD: Package conversion must be completed and tested 668 * NOTE: this code converts packages as input parameters to 669 * control methods only. This is a very, very rare case. 670 */ 671/* 672 Status = AcpiUtCopyEpackageToIpackage(InternalObject, 673 RetBuffer->Pointer, 674 &RetBuffer->Length); 675*/ 676 DEBUG_PRINTP (ACPI_ERROR, ("Packages as parameters not implemented!\n")); 677 678 return_ACPI_STATUS (AE_NOT_IMPLEMENTED); 679 } 680 681 else 682 { 683 /* 684 * Build a simple object (no nested objects) 685 */ 686 Status = AcpiUtCopyEsimpleToIsimple (ExternalObject, InternalObject); 687 /* 688 * build simple does not include the object size in the length 689 * so we add it in here 690 */ 691 } 692 693 return_ACPI_STATUS (Status); 694} 695 696 697/******************************************************************************* 698 * 699 * FUNCTION: AcpiUtCopyIelementToIelement 700 * 701 * PARAMETERS: ACPI_PKG_CALLBACK 702 * 703 * RETURN: Status - the status of the call 704 * 705 * DESCRIPTION: Copy one package element to another package element 706 * 707 ******************************************************************************/ 708 709ACPI_STATUS 710AcpiUtCopyIelementToIelement ( 711 UINT8 ObjectType, 712 ACPI_OPERAND_OBJECT *SourceObject, 713 ACPI_GENERIC_STATE *State, 714 void *Context) 715{ 716 ACPI_STATUS Status = AE_OK; 717 UINT32 ThisIndex; 718 ACPI_OPERAND_OBJECT **ThisTargetPtr; 719 ACPI_OPERAND_OBJECT *TargetObject; 720 721 722 ThisIndex = State->Pkg.Index; 723 ThisTargetPtr = (ACPI_OPERAND_OBJECT **) 724 &State->Pkg.DestObject->Package.Elements[ThisIndex]; 725 726 switch (ObjectType) 727 { 728 case 0: 729 730 /* 731 * This is a simple object, just copy it 732 */ 733 TargetObject = AcpiUtCreateInternalObject (SourceObject->Common.Type); 734 if (!TargetObject) 735 { 736 return (AE_NO_MEMORY); 737 } 738 739 Status = AcpiExStoreObjectToObject (SourceObject, TargetObject, 740 (ACPI_WALK_STATE *) Context); 741 if (ACPI_FAILURE (Status)) 742 { 743 return (Status); 744 } 745 746 *ThisTargetPtr = TargetObject; 747 break; 748 749 750 case 1: 751 /* 752 * This object is a package - go down another nesting level 753 * Create and build the package object 754 */ 755 TargetObject = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE); 756 if (!TargetObject) 757 { 758 /* TBD: must delete package created up to this point */ 759 760 return (AE_NO_MEMORY); 761 } 762 763 TargetObject->Package.Count = SourceObject->Package.Count; 764 765 /* 766 * Pass the new package object back to the package walk routine 767 */ 768 State->Pkg.ThisTargetObj = TargetObject; 769 770 /* 771 * Store the object pointer in the parent package object 772 */ 773 *ThisTargetPtr = TargetObject; 774 break; 775 776 default: 777 return (AE_BAD_PARAMETER); 778 } 779 780 781 return (Status); 782} 783 784 785/******************************************************************************* 786 * 787 * FUNCTION: AcpiUtCopyIpackageToIpackage 788 * 789 * PARAMETERS: *SourceObj - Pointer to the source package object 790 * *DestObj - Where the internal object is returned 791 * 792 * RETURN: Status - the status of the call 793 * 794 * DESCRIPTION: This function is called to copy an internal package object 795 * into another internal package object. 796 * 797 ******************************************************************************/ 798 799ACPI_STATUS 800AcpiUtCopyIpackageToIpackage ( 801 ACPI_OPERAND_OBJECT *SourceObj, 802 ACPI_OPERAND_OBJECT *DestObj, 803 ACPI_WALK_STATE *WalkState) 804{ 805 ACPI_STATUS Status = AE_OK; 806 807 FUNCTION_TRACE ("UtCopyIpackageToIpackage"); 808 809 810 DestObj->Common.Type = SourceObj->Common.Type; 811 DestObj->Package.Count = SourceObj->Package.Count; 812 813 814 /* 815 * Create the object array and walk the source package tree 816 */ 817 818 DestObj->Package.Elements = AcpiUtCallocate ((SourceObj->Package.Count + 1) * 819 sizeof (void *)); 820 DestObj->Package.NextElement = DestObj->Package.Elements; 821 822 if (!DestObj->Package.Elements) 823 { 824 REPORT_ERROR ( 825 ("AmlBuildCopyInternalPackageObject: Package allocation failure\n")); 826 return_ACPI_STATUS (AE_NO_MEMORY); 827 } 828 829 830 Status = AcpiUtWalkPackageTree (SourceObj, DestObj, 831 AcpiUtCopyIelementToIelement, WalkState); 832 833 return_ACPI_STATUS (Status); 834} 835 836