exresop.c revision 151937
1 2/****************************************************************************** 3 * 4 * Module Name: exresop - AML Interpreter operand/object resolution 5 * $Revision: 1.86 $ 6 * 7 *****************************************************************************/ 8 9/****************************************************************************** 10 * 11 * 1. Copyright Notice 12 * 13 * Some or all of this work - Copyright (c) 1999 - 2005, 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 __EXRESOP_C__ 119 120#include <contrib/dev/acpica/acpi.h> 121#include <contrib/dev/acpica/amlcode.h> 122#include <contrib/dev/acpica/acparser.h> 123#include <contrib/dev/acpica/acinterp.h> 124 125 126#define _COMPONENT ACPI_EXECUTER 127 ACPI_MODULE_NAME ("exresop") 128 129/* Local prototypes */ 130 131static ACPI_STATUS 132AcpiExCheckObjectType ( 133 ACPI_OBJECT_TYPE TypeNeeded, 134 ACPI_OBJECT_TYPE ThisType, 135 void *Object); 136 137 138/******************************************************************************* 139 * 140 * FUNCTION: AcpiExCheckObjectType 141 * 142 * PARAMETERS: TypeNeeded Object type needed 143 * ThisType Actual object type 144 * Object Object pointer 145 * 146 * RETURN: Status 147 * 148 * DESCRIPTION: Check required type against actual type 149 * 150 ******************************************************************************/ 151 152static ACPI_STATUS 153AcpiExCheckObjectType ( 154 ACPI_OBJECT_TYPE TypeNeeded, 155 ACPI_OBJECT_TYPE ThisType, 156 void *Object) 157{ 158 ACPI_FUNCTION_NAME ("ExCheckObjectType"); 159 160 161 if (TypeNeeded == ACPI_TYPE_ANY) 162 { 163 /* All types OK, so we don't perform any typechecks */ 164 165 return (AE_OK); 166 } 167 168 if (TypeNeeded == ACPI_TYPE_LOCAL_REFERENCE) 169 { 170 /* 171 * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference 172 * objects and thus allow them to be targets. (As per the ACPI 173 * specification, a store to a constant is a noop.) 174 */ 175 if ((ThisType == ACPI_TYPE_INTEGER) && 176 (((ACPI_OPERAND_OBJECT *) Object)->Common.Flags & AOPOBJ_AML_CONSTANT)) 177 { 178 return (AE_OK); 179 } 180 } 181 182 if (TypeNeeded != ThisType) 183 { 184 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 185 "Needed [%s], found [%s] %p\n", 186 AcpiUtGetTypeName (TypeNeeded), 187 AcpiUtGetTypeName (ThisType), Object)); 188 189 return (AE_AML_OPERAND_TYPE); 190 } 191 192 return (AE_OK); 193} 194 195 196/******************************************************************************* 197 * 198 * FUNCTION: AcpiExResolveOperands 199 * 200 * PARAMETERS: Opcode - Opcode being interpreted 201 * StackPtr - Pointer to the operand stack to be 202 * resolved 203 * WalkState - Current state 204 * 205 * RETURN: Status 206 * 207 * DESCRIPTION: Convert multiple input operands to the types required by the 208 * target operator. 209 * 210 * Each 5-bit group in ArgTypes represents one required 211 * operand and indicates the required Type. The corresponding operand 212 * will be converted to the required type if possible, otherwise we 213 * abort with an exception. 214 * 215 ******************************************************************************/ 216 217ACPI_STATUS 218AcpiExResolveOperands ( 219 UINT16 Opcode, 220 ACPI_OPERAND_OBJECT **StackPtr, 221 ACPI_WALK_STATE *WalkState) 222{ 223 ACPI_OPERAND_OBJECT *ObjDesc; 224 ACPI_STATUS Status = AE_OK; 225 UINT8 ObjectType; 226 void *TempNode; 227 UINT32 ArgTypes; 228 const ACPI_OPCODE_INFO *OpInfo; 229 UINT32 ThisArgType; 230 ACPI_OBJECT_TYPE TypeNeeded; 231 UINT16 TargetOp = 0; 232 233 234 ACPI_FUNCTION_TRACE_U32 ("ExResolveOperands", Opcode); 235 236 237 OpInfo = AcpiPsGetOpcodeInfo (Opcode); 238 if (OpInfo->Class == AML_CLASS_UNKNOWN) 239 { 240 return_ACPI_STATUS (AE_AML_BAD_OPCODE); 241 } 242 243 ArgTypes = OpInfo->RuntimeArgs; 244 if (ArgTypes == ARGI_INVALID_OPCODE) 245 { 246 ACPI_REPORT_ERROR (("ResolveOperands: %X is not a valid AML opcode\n", 247 Opcode)); 248 249 return_ACPI_STATUS (AE_AML_INTERNAL); 250 } 251 252 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 253 "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", 254 Opcode, OpInfo->Name, ArgTypes)); 255 256 /* 257 * Normal exit is with (ArgTypes == 0) at end of argument list. 258 * Function will return an exception from within the loop upon 259 * finding an entry which is not (or cannot be converted 260 * to) the required type; if stack underflows; or upon 261 * finding a NULL stack entry (which should not happen). 262 */ 263 while (GET_CURRENT_ARG_TYPE (ArgTypes)) 264 { 265 if (!StackPtr || !*StackPtr) 266 { 267 ACPI_REPORT_ERROR (("ResolveOperands: Null stack entry at %p\n", 268 StackPtr)); 269 270 return_ACPI_STATUS (AE_AML_INTERNAL); 271 } 272 273 /* Extract useful items */ 274 275 ObjDesc = *StackPtr; 276 277 /* Decode the descriptor type */ 278 279 switch (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc)) 280 { 281 case ACPI_DESC_TYPE_NAMED: 282 283 /* Namespace Node */ 284 285 ObjectType = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Type; 286 break; 287 288 289 case ACPI_DESC_TYPE_OPERAND: 290 291 /* ACPI internal object */ 292 293 ObjectType = ACPI_GET_OBJECT_TYPE (ObjDesc); 294 295 /* Check for bad ACPI_OBJECT_TYPE */ 296 297 if (!AcpiUtValidObjectType (ObjectType)) 298 { 299 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 300 "Bad operand object type [%X]\n", 301 ObjectType)); 302 303 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 304 } 305 306 if (ObjectType == (UINT8) ACPI_TYPE_LOCAL_REFERENCE) 307 { 308 /* Decode the Reference */ 309 310 OpInfo = AcpiPsGetOpcodeInfo (Opcode); 311 if (OpInfo->Class == AML_CLASS_UNKNOWN) 312 { 313 return_ACPI_STATUS (AE_AML_BAD_OPCODE); 314 } 315 316 switch (ObjDesc->Reference.Opcode) 317 { 318 case AML_DEBUG_OP: 319 TargetOp = AML_DEBUG_OP; 320 321 /*lint -fallthrough */ 322 323 case AML_NAME_OP: 324 case AML_INDEX_OP: 325 case AML_REF_OF_OP: 326 case AML_ARG_OP: 327 case AML_LOCAL_OP: 328 case AML_LOAD_OP: /* DdbHandle from LOAD_OP or LOAD_TABLE_OP */ 329 case AML_INT_NAMEPATH_OP: /* Reference to a named object */ 330 331 ACPI_DEBUG_ONLY_MEMBERS (ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 332 "Operand is a Reference, RefOpcode [%s]\n", 333 (AcpiPsGetOpcodeInfo (ObjDesc->Reference.Opcode))->Name))); 334 break; 335 336 default: 337 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 338 "Operand is a Reference, Unknown Reference Opcode %X [%s]\n", 339 ObjDesc->Reference.Opcode, 340 (AcpiPsGetOpcodeInfo (ObjDesc->Reference.Opcode))->Name)); 341 342 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 343 } 344 } 345 break; 346 347 348 default: 349 350 /* Invalid descriptor */ 351 352 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 353 "Invalid descriptor %p [%s]\n", 354 ObjDesc, AcpiUtGetDescriptorName (ObjDesc))); 355 356 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 357 } 358 359 /* Get one argument type, point to the next */ 360 361 ThisArgType = GET_CURRENT_ARG_TYPE (ArgTypes); 362 INCREMENT_ARG_LIST (ArgTypes); 363 364 /* 365 * Handle cases where the object does not need to be 366 * resolved to a value 367 */ 368 switch (ThisArgType) 369 { 370 case ARGI_REF_OR_STRING: /* Can be a String or Reference */ 371 372 if ((ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_OPERAND) && 373 (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_STRING)) 374 { 375 /* 376 * String found - the string references a named object and 377 * must be resolved to a node 378 */ 379 goto NextOperand; 380 } 381 382 /* 383 * Else not a string - fall through to the normal Reference 384 * case below 385 */ 386 /*lint -fallthrough */ 387 388 case ARGI_REFERENCE: /* References: */ 389 case ARGI_INTEGER_REF: 390 case ARGI_OBJECT_REF: 391 case ARGI_DEVICE_REF: 392 case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ 393 case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ 394 case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ 395 396 /* 397 * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE 398 * A Namespace Node is OK as-is 399 */ 400 if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_NAMED) 401 { 402 goto NextOperand; 403 } 404 405 Status = AcpiExCheckObjectType (ACPI_TYPE_LOCAL_REFERENCE, 406 ObjectType, ObjDesc); 407 if (ACPI_FAILURE (Status)) 408 { 409 return_ACPI_STATUS (Status); 410 } 411 412 if (ObjDesc->Reference.Opcode == AML_NAME_OP) 413 { 414 /* Convert a named reference to the actual named object */ 415 416 TempNode = ObjDesc->Reference.Object; 417 AcpiUtRemoveReference (ObjDesc); 418 (*StackPtr) = TempNode; 419 } 420 goto NextOperand; 421 422 423 case ARGI_DATAREFOBJ: /* Store operator only */ 424 425 /* 426 * We don't want to resolve IndexOp reference objects during 427 * a store because this would be an implicit DeRefOf operation. 428 * Instead, we just want to store the reference object. 429 * -- All others must be resolved below. 430 */ 431 if ((Opcode == AML_STORE_OP) && 432 (ACPI_GET_OBJECT_TYPE (*StackPtr) == ACPI_TYPE_LOCAL_REFERENCE) && 433 ((*StackPtr)->Reference.Opcode == AML_INDEX_OP)) 434 { 435 goto NextOperand; 436 } 437 break; 438 439 default: 440 /* All cases covered above */ 441 break; 442 } 443 444 /* 445 * Resolve this object to a value 446 */ 447 Status = AcpiExResolveToValue (StackPtr, WalkState); 448 if (ACPI_FAILURE (Status)) 449 { 450 return_ACPI_STATUS (Status); 451 } 452 453 /* Get the resolved object */ 454 455 ObjDesc = *StackPtr; 456 457 /* 458 * Check the resulting object (value) type 459 */ 460 switch (ThisArgType) 461 { 462 /* 463 * For the simple cases, only one type of resolved object 464 * is allowed 465 */ 466 case ARGI_MUTEX: 467 468 /* Need an operand of type ACPI_TYPE_MUTEX */ 469 470 TypeNeeded = ACPI_TYPE_MUTEX; 471 break; 472 473 case ARGI_EVENT: 474 475 /* Need an operand of type ACPI_TYPE_EVENT */ 476 477 TypeNeeded = ACPI_TYPE_EVENT; 478 break; 479 480 case ARGI_PACKAGE: /* Package */ 481 482 /* Need an operand of type ACPI_TYPE_PACKAGE */ 483 484 TypeNeeded = ACPI_TYPE_PACKAGE; 485 break; 486 487 case ARGI_ANYTYPE: 488 489 /* Any operand type will do */ 490 491 TypeNeeded = ACPI_TYPE_ANY; 492 break; 493 494 case ARGI_DDBHANDLE: 495 496 /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ 497 498 TypeNeeded = ACPI_TYPE_LOCAL_REFERENCE; 499 break; 500 501 502 /* 503 * The more complex cases allow multiple resolved object types 504 */ 505 case ARGI_INTEGER: 506 507 /* 508 * Need an operand of type ACPI_TYPE_INTEGER, 509 * But we can implicitly convert from a STRING or BUFFER 510 * Aka - "Implicit Source Operand Conversion" 511 */ 512 Status = AcpiExConvertToInteger (ObjDesc, StackPtr, 16); 513 if (ACPI_FAILURE (Status)) 514 { 515 if (Status == AE_TYPE) 516 { 517 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 518 "Needed [Integer/String/Buffer], found [%s] %p\n", 519 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 520 521 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 522 } 523 524 return_ACPI_STATUS (Status); 525 } 526 527 if (ObjDesc != *StackPtr) 528 { 529 AcpiUtRemoveReference (ObjDesc); 530 } 531 goto NextOperand; 532 533 534 case ARGI_BUFFER: 535 536 /* 537 * Need an operand of type ACPI_TYPE_BUFFER, 538 * But we can implicitly convert from a STRING or INTEGER 539 * Aka - "Implicit Source Operand Conversion" 540 */ 541 Status = AcpiExConvertToBuffer (ObjDesc, StackPtr); 542 if (ACPI_FAILURE (Status)) 543 { 544 if (Status == AE_TYPE) 545 { 546 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 547 "Needed [Integer/String/Buffer], found [%s] %p\n", 548 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 549 550 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 551 } 552 553 return_ACPI_STATUS (Status); 554 } 555 556 if (ObjDesc != *StackPtr) 557 { 558 AcpiUtRemoveReference (ObjDesc); 559 } 560 goto NextOperand; 561 562 563 case ARGI_STRING: 564 565 /* 566 * Need an operand of type ACPI_TYPE_STRING, 567 * But we can implicitly convert from a BUFFER or INTEGER 568 * Aka - "Implicit Source Operand Conversion" 569 */ 570 Status = AcpiExConvertToString (ObjDesc, StackPtr, 571 ACPI_IMPLICIT_CONVERT_HEX); 572 if (ACPI_FAILURE (Status)) 573 { 574 if (Status == AE_TYPE) 575 { 576 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 577 "Needed [Integer/String/Buffer], found [%s] %p\n", 578 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 579 580 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 581 } 582 583 return_ACPI_STATUS (Status); 584 } 585 586 if (ObjDesc != *StackPtr) 587 { 588 AcpiUtRemoveReference (ObjDesc); 589 } 590 goto NextOperand; 591 592 593 case ARGI_COMPUTEDATA: 594 595 /* Need an operand of type INTEGER, STRING or BUFFER */ 596 597 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 598 { 599 case ACPI_TYPE_INTEGER: 600 case ACPI_TYPE_STRING: 601 case ACPI_TYPE_BUFFER: 602 603 /* Valid operand */ 604 break; 605 606 default: 607 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 608 "Needed [Integer/String/Buffer], found [%s] %p\n", 609 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 610 611 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 612 } 613 goto NextOperand; 614 615 616 case ARGI_BUFFER_OR_STRING: 617 618 /* Need an operand of type STRING or BUFFER */ 619 620 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 621 { 622 case ACPI_TYPE_STRING: 623 case ACPI_TYPE_BUFFER: 624 625 /* Valid operand */ 626 break; 627 628 case ACPI_TYPE_INTEGER: 629 630 /* Highest priority conversion is to type Buffer */ 631 632 Status = AcpiExConvertToBuffer (ObjDesc, StackPtr); 633 if (ACPI_FAILURE (Status)) 634 { 635 return_ACPI_STATUS (Status); 636 } 637 638 if (ObjDesc != *StackPtr) 639 { 640 AcpiUtRemoveReference (ObjDesc); 641 } 642 break; 643 644 default: 645 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 646 "Needed [Integer/String/Buffer], found [%s] %p\n", 647 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 648 649 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 650 } 651 goto NextOperand; 652 653 654 case ARGI_DATAOBJECT: 655 /* 656 * ARGI_DATAOBJECT is only used by the SizeOf operator. 657 * Need a buffer, string, package, or RefOf reference. 658 * 659 * The only reference allowed here is a direct reference to 660 * a namespace node. 661 */ 662 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 663 { 664 case ACPI_TYPE_PACKAGE: 665 case ACPI_TYPE_STRING: 666 case ACPI_TYPE_BUFFER: 667 case ACPI_TYPE_LOCAL_REFERENCE: 668 669 /* Valid operand */ 670 break; 671 672 default: 673 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 674 "Needed [Buffer/String/Package/Reference], found [%s] %p\n", 675 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 676 677 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 678 } 679 goto NextOperand; 680 681 682 case ARGI_COMPLEXOBJ: 683 684 /* Need a buffer or package or (ACPI 2.0) String */ 685 686 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 687 { 688 case ACPI_TYPE_PACKAGE: 689 case ACPI_TYPE_STRING: 690 case ACPI_TYPE_BUFFER: 691 692 /* Valid operand */ 693 break; 694 695 default: 696 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 697 "Needed [Buffer/String/Package], found [%s] %p\n", 698 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 699 700 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 701 } 702 goto NextOperand; 703 704 705 case ARGI_REGION_OR_FIELD: 706 707 /* Need an operand of type REGION or a FIELD in a region */ 708 709 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 710 { 711 case ACPI_TYPE_REGION: 712 case ACPI_TYPE_LOCAL_REGION_FIELD: 713 case ACPI_TYPE_LOCAL_BANK_FIELD: 714 case ACPI_TYPE_LOCAL_INDEX_FIELD: 715 716 /* Valid operand */ 717 break; 718 719 default: 720 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 721 "Needed [Region/RegionField], found [%s] %p\n", 722 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 723 724 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 725 } 726 goto NextOperand; 727 728 729 case ARGI_DATAREFOBJ: 730 731 /* Used by the Store() operator only */ 732 733 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 734 { 735 case ACPI_TYPE_INTEGER: 736 case ACPI_TYPE_PACKAGE: 737 case ACPI_TYPE_STRING: 738 case ACPI_TYPE_BUFFER: 739 case ACPI_TYPE_BUFFER_FIELD: 740 case ACPI_TYPE_LOCAL_REFERENCE: 741 case ACPI_TYPE_LOCAL_REGION_FIELD: 742 case ACPI_TYPE_LOCAL_BANK_FIELD: 743 case ACPI_TYPE_LOCAL_INDEX_FIELD: 744 case ACPI_TYPE_DDB_HANDLE: 745 746 /* Valid operand */ 747 break; 748 749 default: 750 751 if (AcpiGbl_EnableInterpreterSlack) 752 { 753 /* 754 * Enable original behavior of Store(), allowing any and all 755 * objects as the source operand. The ACPI spec does not 756 * allow this, however. 757 */ 758 break; 759 } 760 761 if (TargetOp == AML_DEBUG_OP) 762 { 763 /* Allow store of any object to the Debug object */ 764 765 break; 766 } 767 768 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 769 "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p\n", 770 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 771 772 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 773 } 774 goto NextOperand; 775 776 777 default: 778 779 /* Unknown type */ 780 781 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 782 "Internal - Unknown ARGI (required operand) type %X\n", 783 ThisArgType)); 784 785 return_ACPI_STATUS (AE_BAD_PARAMETER); 786 } 787 788 /* 789 * Make sure that the original object was resolved to the 790 * required object type (Simple cases only). 791 */ 792 Status = AcpiExCheckObjectType (TypeNeeded, 793 ACPI_GET_OBJECT_TYPE (*StackPtr), *StackPtr); 794 if (ACPI_FAILURE (Status)) 795 { 796 return_ACPI_STATUS (Status); 797 } 798 799NextOperand: 800 /* 801 * If more operands needed, decrement StackPtr to point 802 * to next operand on stack 803 */ 804 if (GET_CURRENT_ARG_TYPE (ArgTypes)) 805 { 806 StackPtr--; 807 } 808 } 809 810 return_ACPI_STATUS (Status); 811} 812 813 814