exstore.c revision 71867
1 2/****************************************************************************** 3 * 4 * Module Name: amstore - AML Interpreter object store support 5 * $Revision: 121 $ 6 * 7 *****************************************************************************/ 8 9/****************************************************************************** 10 * 11 * 1. Copyright Notice 12 * 13 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. 14 * All rights reserved. 15 * 16 * 2. License 17 * 18 * 2.1. This is your license from Intel Corp. under its intellectual property 19 * rights. You may have additional license terms from the party that provided 20 * you this software, covering your right to use that party's intellectual 21 * property rights. 22 * 23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 24 * copy of the source code appearing in this file ("Covered Code") an 25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 26 * base code distributed originally by Intel ("Original Intel Code") to copy, 27 * make derivatives, distribute, use and display any portion of the Covered 28 * Code in any form, with the right to sublicense such rights; and 29 * 30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 31 * license (with the right to sublicense), under only those claims of Intel 32 * patents that are infringed by the Original Intel Code, to make, use, sell, 33 * offer to sell, and import the Covered Code and derivative works thereof 34 * solely to the minimum extent necessary to exercise the above copyright 35 * license, and in no event shall the patent license extend to any additions 36 * to or modifications of the Original Intel Code. No other license or right 37 * is granted directly or by implication, estoppel or otherwise; 38 * 39 * The above copyright and patent license is granted only if the following 40 * conditions are met: 41 * 42 * 3. Conditions 43 * 44 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 45 * Redistribution of source code of any substantial portion of the Covered 46 * Code or modification with rights to further distribute source must include 47 * the above Copyright Notice, the above License, this list of Conditions, 48 * and the following Disclaimer and Export Compliance provision. In addition, 49 * Licensee must cause all Covered Code to which Licensee contributes to 50 * contain a file documenting the changes Licensee made to create that Covered 51 * Code and the date of any change. Licensee must include in that file the 52 * documentation of any changes made by any predecessor Licensee. Licensee 53 * must include a prominent statement that the modification is derived, 54 * directly or indirectly, from Original Intel Code. 55 * 56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 57 * Redistribution of source code of any substantial portion of the Covered 58 * Code or modification without rights to further distribute source must 59 * include the following Disclaimer and Export Compliance provision in the 60 * documentation and/or other materials provided with distribution. In 61 * addition, Licensee may not authorize further sublicense of source of any 62 * portion of the Covered Code, and must include terms to the effect that the 63 * license from Licensee to its licensee is limited to the intellectual 64 * property embodied in the software Licensee provides to its licensee, and 65 * not to intellectual property embodied in modifications its licensee may 66 * make. 67 * 68 * 3.3. Redistribution of Executable. Redistribution in executable form of any 69 * substantial portion of the Covered Code or modification must reproduce the 70 * above Copyright Notice, and the following Disclaimer and Export Compliance 71 * provision in the documentation and/or other materials provided with the 72 * distribution. 73 * 74 * 3.4. Intel retains all right, title, and interest in and to the Original 75 * Intel Code. 76 * 77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 78 * Intel shall be used in advertising or otherwise to promote the sale, use or 79 * other dealings in products derived from or relating to the Covered Code 80 * without prior written authorization from Intel. 81 * 82 * 4. Disclaimer and Export Compliance 83 * 84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 90 * PARTICULAR PURPOSE. 91 * 92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 99 * LIMITED REMEDY. 100 * 101 * 4.3. Licensee shall not export, either directly or indirectly, any of this 102 * software or system incorporating such software without first obtaining any 103 * required license or other approval from the U. S. Department of Commerce or 104 * any other agency or department of the United States Government. In the 105 * event Licensee exports any such software from the United States or 106 * re-exports any such software from a foreign destination, Licensee shall 107 * ensure that the distribution and export/re-export of the software is in 108 * compliance with all laws, regulations, orders, or other restrictions of the 109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 110 * any of its subsidiaries will export/re-export any technical data, process, 111 * software, or service, directly or indirectly, to any country for which the 112 * United States government or any agency thereof requires an export license, 113 * other governmental approval, or letter of assurance, without first obtaining 114 * such license, approval or letter. 115 * 116 *****************************************************************************/ 117 118#define __AMSTORE_C__ 119 120#include "acpi.h" 121#include "acparser.h" 122#include "acdispat.h" 123#include "acinterp.h" 124#include "amlcode.h" 125#include "acnamesp.h" 126#include "actables.h" 127 128 129#define _COMPONENT INTERPRETER 130 MODULE_NAME ("amstore") 131 132 133 134 135 136 137/******************************************************************************* 138 * 139 * FUNCTION: AcpiAmlExecStore 140 * 141 * PARAMETERS: *ValDesc - Value to be stored 142 * *DestDesc - Where to store it 0 Must be (ACPI_HANDLE) 143 * or an ACPI_OPERAND_OBJECT of type 144 * Reference; if the latter the descriptor 145 * will be either reused or deleted. 146 * 147 * RETURN: Status 148 * 149 * DESCRIPTION: Store the value described by ValDesc into the location 150 * described by DestDesc. Called by various interpreter 151 * functions to store the result of an operation into 152 * the destination operand. 153 * 154 ******************************************************************************/ 155 156ACPI_STATUS 157AcpiAmlExecStore ( 158 ACPI_OPERAND_OBJECT *ValDesc, 159 ACPI_OPERAND_OBJECT *DestDesc, 160 ACPI_WALK_STATE *WalkState) 161{ 162 ACPI_STATUS Status = AE_OK; 163 ACPI_OPERAND_OBJECT *RefDesc = DestDesc; 164 165 166 FUNCTION_TRACE_PTR ("AmlExecStore", DestDesc); 167 168 169 /* Validate parameters */ 170 171 if (!ValDesc || !DestDesc) 172 { 173 DEBUG_PRINT (ACPI_ERROR, 174 ("AmlExecStore: Internal error - null pointer\n")); 175 return_ACPI_STATUS (AE_AML_NO_OPERAND); 176 } 177 178 /* DestDesc can be either a namespace node or an ACPI object */ 179 180 if (VALID_DESCRIPTOR_TYPE (DestDesc, ACPI_DESC_TYPE_NAMED)) 181 { 182 /* 183 * Dest is a namespace node, 184 * Storing an object into a Name "container" 185 */ 186 Status = AcpiAmlStoreObjectToNode (ValDesc, 187 (ACPI_NAMESPACE_NODE *) DestDesc, WalkState); 188 189 /* All done, that's it */ 190 191 return_ACPI_STATUS (Status); 192 } 193 194 195 /* Destination object must be an object of type Reference */ 196 197 if (DestDesc->Common.Type != INTERNAL_TYPE_REFERENCE) 198 { 199 /* Destination is not an Reference */ 200 201 DEBUG_PRINT (ACPI_ERROR, 202 ("AmlExecStore: Destination is not a ReferenceObj [%p]\n", DestDesc)); 203 204 DUMP_STACK_ENTRY (ValDesc); 205 DUMP_STACK_ENTRY (DestDesc); 206 DUMP_OPERANDS (&DestDesc, IMODE_EXECUTE, "AmlExecStore", 207 2, "Target is not a ReferenceObj"); 208 209 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 210 } 211 212 213 /* 214 * Examine the Reference opcode. These cases are handled: 215 * 216 * 1) Store to Name (Change the object associated with a name) 217 * 2) Store to an indexed area of a Buffer or Package 218 * 3) Store to a Method Local or Arg 219 * 4) Store to the debug object 220 * 5) Store to a constant -- a noop 221 */ 222 223 switch (RefDesc->Reference.OpCode) 224 { 225 226 case AML_NAME_OP: 227 228 /* Storing an object into a Name "container" */ 229 230 Status = AcpiAmlStoreObjectToNode (ValDesc, RefDesc->Reference.Object, 231 WalkState); 232 break; 233 234 235 case AML_INDEX_OP: 236 237 /* Storing to an Index (pointer into a packager or buffer) */ 238 239 Status = AcpiAmlStoreObjectToIndex (ValDesc, RefDesc, WalkState); 240 break; 241 242 243 case AML_LOCAL_OP: 244 245 Status = AcpiDsMethodDataSetValue (MTH_TYPE_LOCAL, 246 (RefDesc->Reference.Offset), ValDesc, WalkState); 247 break; 248 249 250 case AML_ARG_OP: 251 252 Status = AcpiDsMethodDataSetValue (MTH_TYPE_ARG, 253 (RefDesc->Reference.Offset), ValDesc, WalkState); 254 break; 255 256 257 case AML_DEBUG_OP: 258 259 /* 260 * Storing to the Debug object causes the value stored to be 261 * displayed and otherwise has no effect -- see ACPI Specification 262 * 263 * TBD: print known object types "prettier". 264 */ 265 DEBUG_PRINT (ACPI_INFO, ("**** Write to Debug Object: ****: \n")); 266 267 if (ValDesc->Common.Type == ACPI_TYPE_STRING) 268 { 269 DEBUG_PRINT (ACPI_INFO, ("%s\n", ValDesc->String.Pointer)); 270 } 271 else 272 { 273 DUMP_STACK_ENTRY (ValDesc); 274 } 275 276 break; 277 278 279 case AML_ZERO_OP: 280 case AML_ONE_OP: 281 case AML_ONES_OP: 282 283 /* 284 * Storing to a constant is a no-op -- see ACPI Specification 285 * Delete the reference descriptor, however 286 */ 287 break; 288 289 290 default: 291 292 DEBUG_PRINT (ACPI_ERROR, 293 ("AmlExecStore: Internal error - Unknown Reference subtype %02x\n", 294 RefDesc->Reference.OpCode)); 295 296 /* TBD: [Restructure] use object dump routine !! */ 297 298 DUMP_BUFFER (RefDesc, sizeof (ACPI_OPERAND_OBJECT)); 299 300 Status = AE_AML_INTERNAL; 301 break; 302 303 } /* switch (RefDesc->Reference.OpCode) */ 304 305 306 307 /* Always delete the reference descriptor object */ 308 309 if (RefDesc) 310 { 311 AcpiCmRemoveReference (RefDesc); 312 } 313 314 return_ACPI_STATUS (Status); 315} 316 317 318/******************************************************************************* 319 * 320 * FUNCTION: AcpiAmlStoreObjectToIndex 321 * 322 * PARAMETERS: *ValDesc - Value to be stored 323 * *Node - Named object to recieve the value 324 * 325 * RETURN: Status 326 * 327 * DESCRIPTION: Store the object to the named object. 328 * 329 ******************************************************************************/ 330 331ACPI_STATUS 332AcpiAmlStoreObjectToIndex ( 333 ACPI_OPERAND_OBJECT *ValDesc, 334 ACPI_OPERAND_OBJECT *DestDesc, 335 ACPI_WALK_STATE *WalkState) 336{ 337 ACPI_STATUS Status = AE_OK; 338 ACPI_OPERAND_OBJECT *ObjDesc; 339 UINT32 Length; 340 UINT32 i; 341 UINT8 Value = 0; 342 343 344 FUNCTION_TRACE ("AcpiAmlStoreObjectToIndex"); 345 346 347 /* 348 * Destination must be a reference pointer, and 349 * must point to either a buffer or a package 350 */ 351 352 switch (DestDesc->Reference.TargetType) 353 { 354 case ACPI_TYPE_PACKAGE: 355 /* 356 * Storing to a package element is not simple. The source must be 357 * evaluated and converted to the type of the destination and then the 358 * source is copied into the destination - we can't just point to the 359 * source object. 360 */ 361 if (DestDesc->Reference.TargetType == ACPI_TYPE_PACKAGE) 362 { 363 /* 364 * The object at *(DestDesc->Reference.Where) is the 365 * element within the package that is to be modified. 366 */ 367 ObjDesc = *(DestDesc->Reference.Where); 368 if (ObjDesc) 369 { 370 /* 371 * If the Destination element is a package, we will delete 372 * that object and construct a new one. 373 * 374 * TBD: [Investigate] Should both the src and dest be required 375 * to be packages? 376 * && (ValDesc->Common.Type == ACPI_TYPE_PACKAGE) 377 */ 378 if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE) 379 { 380 /* 381 * Take away the reference for being part of a package and 382 * delete 383 */ 384 AcpiCmRemoveReference (ObjDesc); 385 AcpiCmRemoveReference (ObjDesc); 386 387 ObjDesc = NULL; 388 } 389 } 390 391 if (!ObjDesc) 392 { 393 /* 394 * If the ObjDesc is NULL, it means that an uninitialized package 395 * element has been used as a destination (this is OK), therefore, 396 * we must create the destination element to match the type of the 397 * source element NOTE: ValDesc can be of any type. 398 */ 399 ObjDesc = AcpiCmCreateInternalObject (ValDesc->Common.Type); 400 if (!ObjDesc) 401 { 402 return_ACPI_STATUS (AE_NO_MEMORY); 403 } 404 405 /* 406 * If the source is a package, copy the source to the new dest 407 */ 408 if (ACPI_TYPE_PACKAGE == ObjDesc->Common.Type) 409 { 410 Status = AcpiAmlBuildCopyInternalPackageObject ( 411 ValDesc, ObjDesc, WalkState); 412 if (ACPI_FAILURE (Status)) 413 { 414 AcpiCmRemoveReference (ObjDesc); 415 return_ACPI_STATUS (Status); 416 } 417 } 418 419 /* 420 * Install the new descriptor into the package and add a 421 * reference to the newly created descriptor for now being 422 * part of the parent package 423 */ 424 425 *(DestDesc->Reference.Where) = ObjDesc; 426 AcpiCmAddReference (ObjDesc); 427 } 428 429 if (ACPI_TYPE_PACKAGE != ObjDesc->Common.Type) 430 { 431 /* 432 * The destination element is not a package, so we need to 433 * convert the contents of the source (ValDesc) and copy into 434 * the destination (ObjDesc) 435 */ 436 Status = AcpiAmlStoreObjectToObject (ValDesc, ObjDesc, 437 WalkState); 438 if (ACPI_FAILURE (Status)) 439 { 440 /* 441 * An error occurrered when copying the internal object 442 * so delete the reference. 443 */ 444 DEBUG_PRINT (ACPI_ERROR, 445 ("AmlExecStore/Index: Unable to copy the internal object\n")); 446 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 447 } 448 } 449 } 450 break; 451 452 453 case ACPI_TYPE_BUFFER_FIELD: 454 /* 455 * Storing into a buffer at a location defined by an Index. 456 * 457 * Each 8-bit element of the source object is written to the 458 * 8-bit Buffer Field of the Index destination object. 459 */ 460 461 /* 462 * Set the ObjDesc to the destination object and type check. 463 */ 464 ObjDesc = DestDesc->Reference.Object; 465 if (ObjDesc->Common.Type != ACPI_TYPE_BUFFER) 466 { 467 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 468 } 469 470 /* 471 * The assignment of the individual elements will be slightly 472 * different for each source type. 473 */ 474 475 switch (ValDesc->Common.Type) 476 { 477 /* 478 * If the type is Integer, assign bytewise 479 * This loop to assign each of the elements is somewhat 480 * backward because of the Big Endian-ness of IA-64 481 */ 482 case ACPI_TYPE_INTEGER: 483 Length = sizeof (ACPI_INTEGER); 484 for (i = Length; i != 0; i--) 485 { 486 Value = (UINT8)(ValDesc->Integer.Value >> (MUL_8 (i - 1))); 487 ObjDesc->Buffer.Pointer[DestDesc->Reference.Offset] = Value; 488 } 489 break; 490 491 /* 492 * If the type is Buffer, the Length is in the structure. 493 * Just loop through the elements and assign each one in turn. 494 */ 495 case ACPI_TYPE_BUFFER: 496 Length = ValDesc->Buffer.Length; 497 for (i = 0; i < Length; i++) 498 { 499 Value = *(ValDesc->Buffer.Pointer + i); 500 ObjDesc->Buffer.Pointer[DestDesc->Reference.Offset] = Value; 501 } 502 break; 503 504 /* 505 * If the type is String, the Length is in the structure. 506 * Just loop through the elements and assign each one in turn. 507 */ 508 case ACPI_TYPE_STRING: 509 Length = ValDesc->String.Length; 510 for (i = 0; i < Length; i++) 511 { 512 Value = *(ValDesc->String.Pointer + i); 513 ObjDesc->Buffer.Pointer[DestDesc->Reference.Offset] = Value; 514 } 515 break; 516 517 /* 518 * If source is not a valid type so return an error. 519 */ 520 default: 521 DEBUG_PRINT (ACPI_ERROR, 522 ("AmlExecStore/Index: Source must be Number/Buffer/String type, not %X\n", 523 ValDesc->Common.Type)); 524 Status = AE_AML_OPERAND_TYPE; 525 break; 526 } 527 break; 528 529 530 default: 531 DEBUG_PRINT (ACPI_ERROR, 532 ("AmlExecStoreIndex: Target is not a Package or BufferField\n")); 533 Status = AE_AML_OPERAND_TYPE; 534 break; 535 } 536 537 538 return_ACPI_STATUS (Status); 539} 540 541 542 543 544 545/******************************************************************************* 546 * 547 * FUNCTION: AcpiAmlStoreObjectToNode 548 * 549 * PARAMETERS: *SourceDesc - Value to be stored 550 * *Node - Named object to recieve the value 551 * 552 * RETURN: Status 553 * 554 * DESCRIPTION: Store the object to the named object. 555 * 556 * The Assignment of an object to a named object is handled here 557 * The val passed in will replace the current value (if any) 558 * with the input value. 559 * 560 * When storing into an object the data is converted to the 561 * target object type then stored in the object. This means 562 * that the target object type (for an initialized target) will 563 * not be changed by a store operation. 564 * 565 * NOTE: the global lock is acquired early. This will result 566 * in the global lock being held a bit longer. Also, if the 567 * function fails during set up we may get the lock when we 568 * don't really need it. I don't think we care. 569 * 570 ******************************************************************************/ 571 572ACPI_STATUS 573AcpiAmlStoreObjectToNode ( 574 ACPI_OPERAND_OBJECT *SourceDesc, 575 ACPI_NAMESPACE_NODE *Node, 576 ACPI_WALK_STATE *WalkState) 577{ 578 ACPI_STATUS Status = AE_OK; 579 ACPI_OPERAND_OBJECT *TargetDesc; 580 OBJECT_TYPE_INTERNAL TargetType = ACPI_TYPE_ANY; 581 582 583 FUNCTION_TRACE ("AmlStoreObjectToNode"); 584 585 /* 586 * Assuming the parameters were already validated 587 */ 588 ACPI_ASSERT((Node) && (SourceDesc)); 589 590 591 /* 592 * Get current type of the node, and object attached to Node 593 */ 594 TargetType = AcpiNsGetType (Node); 595 TargetDesc = AcpiNsGetAttachedObject (Node); 596 597 DEBUG_PRINT (ACPI_INFO, ("AmlStoreObjectToNode: Storing %p(%s) into node %p(%s)\n", 598 Node, AcpiCmGetTypeName (SourceDesc->Common.Type), 599 SourceDesc, AcpiCmGetTypeName (TargetType))); 600 601 602 /* 603 * Resolve the source object to an actual value 604 * (If it is a reference object) 605 */ 606 Status = AcpiAmlResolveObject (&SourceDesc, TargetType, WalkState); 607 if (ACPI_FAILURE (Status)) 608 { 609 return_ACPI_STATUS (Status); 610 } 611 612 613 /* 614 * Do the actual store operation 615 */ 616 switch (TargetType) 617 { 618 case INTERNAL_TYPE_DEF_FIELD: 619 620 /* Raw data copy for target types Integer/String/Buffer */ 621 622 Status = AcpiAmlCopyDataToNamedField (SourceDesc, Node); 623 break; 624 625 626 case ACPI_TYPE_INTEGER: 627 case ACPI_TYPE_STRING: 628 case ACPI_TYPE_BUFFER: 629 case INTERNAL_TYPE_BANK_FIELD: 630 case INTERNAL_TYPE_INDEX_FIELD: 631 case ACPI_TYPE_FIELD_UNIT: 632 633 /* 634 * These target types are all of type Integer/String/Buffer, and 635 * therefore support implicit conversion before the store. 636 * 637 * Copy and/or convert the source object to a new target object 638 */ 639 Status = AcpiAmlStoreObject (SourceDesc, TargetType, &TargetDesc, WalkState); 640 if (ACPI_FAILURE (Status)) 641 { 642 return_ACPI_STATUS (Status); 643 } 644 645 /* 646 * Store the new TargetDesc as the new value of the Name, and set 647 * the Name's type to that of the value being stored in it. 648 * SourceDesc reference count is incremented by AttachObject. 649 */ 650 Status = AcpiNsAttachObject (Node, TargetDesc, TargetType); 651 DEBUG_PRINT (ACPI_INFO, 652 ("AmlStoreObjectToNode: Store %s into %s via Convert/Attach\n", 653 AcpiCmGetTypeName (TargetDesc->Common.Type), 654 AcpiCmGetTypeName (TargetType))); 655 break; 656 657 658 default: 659 660 /* No conversions for all other types. Just attach the source object */ 661 662 Status = AcpiNsAttachObject (Node, SourceDesc, SourceDesc->Common.Type); 663 664 DEBUG_PRINT (ACPI_INFO, 665 ("AmlStoreObjectToNode: Store %s into %s via Attach only\n", 666 AcpiCmGetTypeName (SourceDesc->Common.Type), 667 AcpiCmGetTypeName (SourceDesc->Common.Type))); 668 break; 669 } 670 671 672 return_ACPI_STATUS (Status); 673} 674 675 676 677/******************************************************************************* 678 * 679 * FUNCTION: AcpiAmlStoreObjectToObject 680 * 681 * PARAMETERS: *SourceDesc - Value to be stored 682 * *DestDesc - Object to receive the value 683 * 684 * RETURN: Status 685 * 686 * DESCRIPTION: Store an object to another object. 687 * 688 * The Assignment of an object to another (not named) object 689 * is handled here. 690 * The val passed in will replace the current value (if any) 691 * with the input value. 692 * 693 * When storing into an object the data is converted to the 694 * target object type then stored in the object. This means 695 * that the target object type (for an initialized target) will 696 * not be changed by a store operation. 697 * 698 * This module allows destination types of Number, String, 699 * and Buffer. 700 * 701 ******************************************************************************/ 702 703ACPI_STATUS 704AcpiAmlStoreObjectToObject ( 705 ACPI_OPERAND_OBJECT *SourceDesc, 706 ACPI_OPERAND_OBJECT *DestDesc, 707 ACPI_WALK_STATE *WalkState) 708{ 709 ACPI_STATUS Status = AE_OK; 710 OBJECT_TYPE_INTERNAL DestinationType = DestDesc->Common.Type; 711 712 713 FUNCTION_TRACE ("AmlStoreObjectToObject"); 714 715 716 /* 717 * Assuming the parameters are valid! 718 */ 719 ACPI_ASSERT((DestDesc) && (SourceDesc)); 720 721 DEBUG_PRINT (ACPI_INFO, ("AmlStoreObjectToObject: Storing %p(%s) to (%p)%s\n", 722 SourceDesc, AcpiCmGetTypeName (SourceDesc->Common.Type), 723 DestDesc, AcpiCmGetTypeName (DestDesc->Common.Type))); 724 725 726 /* 727 * From this interface, we only support Integers/Strings/Buffers 728 */ 729 switch (DestinationType) 730 { 731 case ACPI_TYPE_INTEGER: 732 case ACPI_TYPE_STRING: 733 case ACPI_TYPE_BUFFER: 734 break; 735 736 default: 737 DEBUG_PRINT (ACPI_WARN, 738 ("AmlStoreObjectToObject: Store into %s not implemented\n", 739 AcpiCmGetTypeName (DestDesc->Common.Type))); 740 741 return_ACPI_STATUS (AE_NOT_IMPLEMENTED); 742 } 743 744 745 746 /* 747 * Resolve the source object to an actual value 748 * (If it is a reference object) 749 */ 750 Status = AcpiAmlResolveObject (&SourceDesc, DestinationType, WalkState); 751 if (ACPI_FAILURE (Status)) 752 { 753 return_ACPI_STATUS (Status); 754 } 755 756 757 /* 758 * Copy and/or convert the source object to the destination object 759 */ 760 Status = AcpiAmlStoreObject (SourceDesc, DestinationType, &DestDesc, WalkState); 761 762 763 return_ACPI_STATUS (Status); 764} 765 766