1 2 /****************************************************************************** 3 * 4 * Module Name: exresop - AML Interpreter operand/object resolution 5 * $Revision: 1.96 $ 6 * 7 *****************************************************************************/ 8 9 /****************************************************************************** 10 * 11 * 1. Copyright Notice 12 * 13 * Some or all of this work - Copyright (c) 1999 - 2008, 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 "acpi.h" 121 #include "amlcode.h" 122 #include "acparser.h" 123 #include "acinterp.h" 124 #include "acnamesp.h" 125 126 127 #define _COMPONENT ACPI_EXECUTER 128 ACPI_MODULE_NAME ("exresop") 129 130 /* Local prototypes */ 131 132 static ACPI_STATUS 133 AcpiExCheckObjectType ( 134 ACPI_OBJECT_TYPE TypeNeeded, 135 ACPI_OBJECT_TYPE ThisType, 136 void *Object); 137 138 139 /******************************************************************************* 140 * 141 * FUNCTION: AcpiExCheckObjectType 142 * 143 * PARAMETERS: TypeNeeded Object type needed 144 * ThisType Actual object type 145 * Object Object pointer 146 * 147 * RETURN: Status 148 * 149 * DESCRIPTION: Check required type against actual type 150 * 151 ******************************************************************************/ 152 153 static ACPI_STATUS 154 AcpiExCheckObjectType ( 155 ACPI_OBJECT_TYPE TypeNeeded, 156 ACPI_OBJECT_TYPE ThisType, 157 void *Object) 158 { 159 ACPI_FUNCTION_ENTRY (); 160 161 162 if (TypeNeeded == ACPI_TYPE_ANY) 163 { 164 /* All types OK, so we don't perform any typechecks */ 165 166 return (AE_OK); 167 } 168 169 if (TypeNeeded == ACPI_TYPE_LOCAL_REFERENCE) 170 { 171 /* 172 * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference 173 * objects and thus allow them to be targets. (As per the ACPI 174 * specification, a store to a constant is a noop.) 175 */ 176 if ((ThisType == ACPI_TYPE_INTEGER) && 177 (((ACPI_OPERAND_OBJECT *) Object)->Common.Flags & AOPOBJ_AML_CONSTANT)) 178 { 179 return (AE_OK); 180 } 181 } 182 183 if (TypeNeeded != ThisType) 184 { 185 ACPI_ERROR ((AE_INFO, 186 "Needed type [%s], found [%s] %p", 187 AcpiUtGetTypeName (TypeNeeded), 188 AcpiUtGetTypeName (ThisType), Object)); 189 190 return (AE_AML_OPERAND_TYPE); 191 } 192 193 return (AE_OK); 194 } 195 196 197 /******************************************************************************* 198 * 199 * FUNCTION: AcpiExResolveOperands 200 * 201 * PARAMETERS: Opcode - Opcode being interpreted 202 * StackPtr - Pointer to the operand stack to be 203 * resolved 204 * WalkState - Current state 205 * 206 * RETURN: Status 207 * 208 * DESCRIPTION: Convert multiple input operands to the types required by the 209 * target operator. 210 * 211 * Each 5-bit group in ArgTypes represents one required 212 * operand and indicates the required Type. The corresponding operand 213 * will be converted to the required type if possible, otherwise we 214 * abort with an exception. 215 * 216 ******************************************************************************/ 217 218 ACPI_STATUS 219 AcpiExResolveOperands ( 220 UINT16 Opcode, 221 ACPI_OPERAND_OBJECT **StackPtr, 222 ACPI_WALK_STATE *WalkState) 223 { 224 ACPI_OPERAND_OBJECT *ObjDesc; 225 ACPI_STATUS Status = AE_OK; 226 UINT8 ObjectType; 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_ERROR ((AE_INFO, "Unknown AML opcode %X", 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_ERROR ((AE_INFO, "Null stack entry at %p", 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; 286 287 /* 288 * Resolve an alias object. The construction of these objects 289 * guarantees that there is only one level of alias indirection; 290 * thus, the attached object is always the aliased namespace node 291 */ 292 if (ObjectType == ACPI_TYPE_LOCAL_ALIAS) 293 { 294 ObjDesc = AcpiNsGetAttachedObject ((ACPI_NAMESPACE_NODE *) ObjDesc); 295 *StackPtr = ObjDesc; 296 ObjectType = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Type; 297 } 298 break; 299 300 301 case ACPI_DESC_TYPE_OPERAND: 302 303 /* ACPI internal object */ 304 305 ObjectType = ACPI_GET_OBJECT_TYPE (ObjDesc); 306 307 /* Check for bad ACPI_OBJECT_TYPE */ 308 309 if (!AcpiUtValidObjectType (ObjectType)) 310 { 311 ACPI_ERROR ((AE_INFO, 312 "Bad operand object type [%X]", ObjectType)); 313 314 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 315 } 316 317 if (ObjectType == (UINT8) ACPI_TYPE_LOCAL_REFERENCE) 318 { 319 /* Validate the Reference */ 320 321 switch (ObjDesc->Reference.Class) 322 { 323 case ACPI_REFCLASS_DEBUG: 324 325 TargetOp = AML_DEBUG_OP; 326 327 /*lint -fallthrough */ 328 329 case ACPI_REFCLASS_ARG: 330 case ACPI_REFCLASS_LOCAL: 331 case ACPI_REFCLASS_INDEX: 332 case ACPI_REFCLASS_REFOF: 333 case ACPI_REFCLASS_TABLE: /* DdbHandle from LOAD_OP or LOAD_TABLE_OP */ 334 case ACPI_REFCLASS_NAME: /* Reference to a named object */ 335 336 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 337 "Operand is a Reference, Class [%s] %2.2X\n", 338 AcpiUtGetReferenceName (ObjDesc), 339 ObjDesc->Reference.Class)); 340 break; 341 342 default: 343 344 ACPI_ERROR ((AE_INFO, 345 "Unknown Reference Class %2.2X in %p", 346 ObjDesc->Reference.Class, ObjDesc)); 347 348 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 349 } 350 } 351 break; 352 353 354 default: 355 356 /* Invalid descriptor */ 357 358 ACPI_ERROR ((AE_INFO, "Invalid descriptor %p [%s]", 359 ObjDesc, AcpiUtGetDescriptorName (ObjDesc))); 360 361 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 362 } 363 364 /* Get one argument type, point to the next */ 365 366 ThisArgType = GET_CURRENT_ARG_TYPE (ArgTypes); 367 INCREMENT_ARG_LIST (ArgTypes); 368 369 /* 370 * Handle cases where the object does not need to be 371 * resolved to a value 372 */ 373 switch (ThisArgType) 374 { 375 case ARGI_REF_OR_STRING: /* Can be a String or Reference */ 376 377 if ((ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_OPERAND) && 378 (ACPI_GET_OBJECT_TYPE (ObjDesc) == ACPI_TYPE_STRING)) 379 { 380 /* 381 * String found - the string references a named object and 382 * must be resolved to a node 383 */ 384 goto NextOperand; 385 } 386 387 /* 388 * Else not a string - fall through to the normal Reference 389 * case below 390 */ 391 /*lint -fallthrough */ 392 393 case ARGI_REFERENCE: /* References: */ 394 case ARGI_INTEGER_REF: 395 case ARGI_OBJECT_REF: 396 case ARGI_DEVICE_REF: 397 case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ 398 case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ 399 case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ 400 401 /* 402 * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE 403 * A Namespace Node is OK as-is 404 */ 405 if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_NAMED) 406 { 407 goto NextOperand; 408 } 409 410 Status = AcpiExCheckObjectType (ACPI_TYPE_LOCAL_REFERENCE, 411 ObjectType, ObjDesc); 412 if (ACPI_FAILURE (Status)) 413 { 414 return_ACPI_STATUS (Status); 415 } 416 goto NextOperand; 417 418 419 case ARGI_DATAREFOBJ: /* Store operator only */ 420 421 /* 422 * We don't want to resolve IndexOp reference objects during 423 * a store because this would be an implicit DeRefOf operation. 424 * Instead, we just want to store the reference object. 425 * -- All others must be resolved below. 426 */ 427 if ((Opcode == AML_STORE_OP) && 428 (ACPI_GET_OBJECT_TYPE (*StackPtr) == ACPI_TYPE_LOCAL_REFERENCE) && 429 ((*StackPtr)->Reference.Class == ACPI_REFCLASS_INDEX)) 430 { 431 goto NextOperand; 432 } 433 break; 434 435 default: 436 /* All cases covered above */ 437 break; 438 } 439 440 /* 441 * Resolve this object to a value 442 */ 443 Status = AcpiExResolveToValue (StackPtr, WalkState); 444 if (ACPI_FAILURE (Status)) 445 { 446 return_ACPI_STATUS (Status); 447 } 448 449 /* Get the resolved object */ 450 451 ObjDesc = *StackPtr; 452 453 /* 454 * Check the resulting object (value) type 455 */ 456 switch (ThisArgType) 457 { 458 /* 459 * For the simple cases, only one type of resolved object 460 * is allowed 461 */ 462 case ARGI_MUTEX: 463 464 /* Need an operand of type ACPI_TYPE_MUTEX */ 465 466 TypeNeeded = ACPI_TYPE_MUTEX; 467 break; 468 469 case ARGI_EVENT: 470 471 /* Need an operand of type ACPI_TYPE_EVENT */ 472 473 TypeNeeded = ACPI_TYPE_EVENT; 474 break; 475 476 case ARGI_PACKAGE: /* Package */ 477 478 /* Need an operand of type ACPI_TYPE_PACKAGE */ 479 480 TypeNeeded = ACPI_TYPE_PACKAGE; 481 break; 482 483 case ARGI_ANYTYPE: 484 485 /* Any operand type will do */ 486 487 TypeNeeded = ACPI_TYPE_ANY; 488 break; 489 490 case ARGI_DDBHANDLE: 491 492 /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ 493 494 TypeNeeded = ACPI_TYPE_LOCAL_REFERENCE; 495 break; 496 497 498 /* 499 * The more complex cases allow multiple resolved object types 500 */ 501 case ARGI_INTEGER: 502 503 /* 504 * Need an operand of type ACPI_TYPE_INTEGER, 505 * But we can implicitly convert from a STRING or BUFFER 506 * Aka - "Implicit Source Operand Conversion" 507 */ 508 Status = AcpiExConvertToInteger (ObjDesc, StackPtr, 16); 509 if (ACPI_FAILURE (Status)) 510 { 511 if (Status == AE_TYPE) 512 { 513 ACPI_ERROR ((AE_INFO, 514 "Needed [Integer/String/Buffer], found [%s] %p", 515 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 516 517 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 518 } 519 520 return_ACPI_STATUS (Status); 521 } 522 523 if (ObjDesc != *StackPtr) 524 { 525 AcpiUtRemoveReference (ObjDesc); 526 } 527 goto NextOperand; 528 529 530 case ARGI_BUFFER: 531 532 /* 533 * Need an operand of type ACPI_TYPE_BUFFER, 534 * But we can implicitly convert from a STRING or INTEGER 535 * Aka - "Implicit Source Operand Conversion" 536 */ 537 Status = AcpiExConvertToBuffer (ObjDesc, StackPtr); 538 if (ACPI_FAILURE (Status)) 539 { 540 if (Status == AE_TYPE) 541 { 542 ACPI_ERROR ((AE_INFO, 543 "Needed [Integer/String/Buffer], found [%s] %p", 544 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 545 546 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 547 } 548 549 return_ACPI_STATUS (Status); 550 } 551 552 if (ObjDesc != *StackPtr) 553 { 554 AcpiUtRemoveReference (ObjDesc); 555 } 556 goto NextOperand; 557 558 559 case ARGI_STRING: 560 561 /* 562 * Need an operand of type ACPI_TYPE_STRING, 563 * But we can implicitly convert from a BUFFER or INTEGER 564 * Aka - "Implicit Source Operand Conversion" 565 */ 566 Status = AcpiExConvertToString (ObjDesc, StackPtr, 567 ACPI_IMPLICIT_CONVERT_HEX); 568 if (ACPI_FAILURE (Status)) 569 { 570 if (Status == AE_TYPE) 571 { 572 ACPI_ERROR ((AE_INFO, 573 "Needed [Integer/String/Buffer], found [%s] %p", 574 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 575 576 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 577 } 578 579 return_ACPI_STATUS (Status); 580 } 581 582 if (ObjDesc != *StackPtr) 583 { 584 AcpiUtRemoveReference (ObjDesc); 585 } 586 goto NextOperand; 587 588 589 case ARGI_COMPUTEDATA: 590 591 /* Need an operand of type INTEGER, STRING or BUFFER */ 592 593 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 594 { 595 case ACPI_TYPE_INTEGER: 596 case ACPI_TYPE_STRING: 597 case ACPI_TYPE_BUFFER: 598 599 /* Valid operand */ 600 break; 601 602 default: 603 ACPI_ERROR ((AE_INFO, 604 "Needed [Integer/String/Buffer], found [%s] %p", 605 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 606 607 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 608 } 609 goto NextOperand; 610 611 612 case ARGI_BUFFER_OR_STRING: 613 614 /* Need an operand of type STRING or BUFFER */ 615 616 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 617 { 618 case ACPI_TYPE_STRING: 619 case ACPI_TYPE_BUFFER: 620 621 /* Valid operand */ 622 break; 623 624 case ACPI_TYPE_INTEGER: 625 626 /* Highest priority conversion is to type Buffer */ 627 628 Status = AcpiExConvertToBuffer (ObjDesc, StackPtr); 629 if (ACPI_FAILURE (Status)) 630 { 631 return_ACPI_STATUS (Status); 632 } 633 634 if (ObjDesc != *StackPtr) 635 { 636 AcpiUtRemoveReference (ObjDesc); 637 } 638 break; 639 640 default: 641 ACPI_ERROR ((AE_INFO, 642 "Needed [Integer/String/Buffer], found [%s] %p", 643 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 644 645 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 646 } 647 goto NextOperand; 648 649 650 case ARGI_DATAOBJECT: 651 /* 652 * ARGI_DATAOBJECT is only used by the SizeOf operator. 653 * Need a buffer, string, package, or RefOf reference. 654 * 655 * The only reference allowed here is a direct reference to 656 * a namespace node. 657 */ 658 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 659 { 660 case ACPI_TYPE_PACKAGE: 661 case ACPI_TYPE_STRING: 662 case ACPI_TYPE_BUFFER: 663 case ACPI_TYPE_LOCAL_REFERENCE: 664 665 /* Valid operand */ 666 break; 667 668 default: 669 ACPI_ERROR ((AE_INFO, 670 "Needed [Buffer/String/Package/Reference], found [%s] %p", 671 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 672 673 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 674 } 675 goto NextOperand; 676 677 678 case ARGI_COMPLEXOBJ: 679 680 /* Need a buffer or package or (ACPI 2.0) String */ 681 682 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 683 { 684 case ACPI_TYPE_PACKAGE: 685 case ACPI_TYPE_STRING: 686 case ACPI_TYPE_BUFFER: 687 688 /* Valid operand */ 689 break; 690 691 default: 692 ACPI_ERROR ((AE_INFO, 693 "Needed [Buffer/String/Package], found [%s] %p", 694 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 695 696 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 697 } 698 goto NextOperand; 699 700 701 case ARGI_REGION_OR_BUFFER: /* Used by Load() only */ 702 703 /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */ 704 705 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 706 { 707 case ACPI_TYPE_BUFFER: 708 case ACPI_TYPE_REGION: 709 710 /* Valid operand */ 711 break; 712 713 default: 714 ACPI_ERROR ((AE_INFO, 715 "Needed [Region/Buffer], found [%s] %p", 716 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 717 718 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 719 } 720 goto NextOperand; 721 722 723 case ARGI_DATAREFOBJ: 724 725 /* Used by the Store() operator only */ 726 727 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 728 { 729 case ACPI_TYPE_INTEGER: 730 case ACPI_TYPE_PACKAGE: 731 case ACPI_TYPE_STRING: 732 case ACPI_TYPE_BUFFER: 733 case ACPI_TYPE_BUFFER_FIELD: 734 case ACPI_TYPE_LOCAL_REFERENCE: 735 case ACPI_TYPE_LOCAL_REGION_FIELD: 736 case ACPI_TYPE_LOCAL_BANK_FIELD: 737 case ACPI_TYPE_LOCAL_INDEX_FIELD: 738 case ACPI_TYPE_DDB_HANDLE: 739 740 /* Valid operand */ 741 break; 742 743 default: 744 745 if (AcpiGbl_EnableInterpreterSlack) 746 { 747 /* 748 * Enable original behavior of Store(), allowing any and all 749 * objects as the source operand. The ACPI spec does not 750 * allow this, however. 751 */ 752 break; 753 } 754 755 if (TargetOp == AML_DEBUG_OP) 756 { 757 /* Allow store of any object to the Debug object */ 758 759 break; 760 } 761 762 ACPI_ERROR ((AE_INFO, 763 "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p", 764 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 765 766 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 767 } 768 goto NextOperand; 769 770 771 default: 772 773 /* Unknown type */ 774 775 ACPI_ERROR ((AE_INFO, 776 "Internal - Unknown ARGI (required operand) type %X", 777 ThisArgType)); 778 779 return_ACPI_STATUS (AE_BAD_PARAMETER); 780 } 781 782 /* 783 * Make sure that the original object was resolved to the 784 * required object type (Simple cases only). 785 */ 786 Status = AcpiExCheckObjectType (TypeNeeded, 787 ACPI_GET_OBJECT_TYPE (*StackPtr), *StackPtr); 788 if (ACPI_FAILURE (Status)) 789 { 790 return_ACPI_STATUS (Status); 791 } 792 793 NextOperand: 794 /* 795 * If more operands needed, decrement StackPtr to point 796 * to next operand on stack 797 */ 798 if (GET_CURRENT_ARG_TYPE (ArgTypes)) 799 { 800 StackPtr--; 801 } 802 } 803 804 ACPI_DUMP_OPERANDS (WalkState->Operands, 805 AcpiPsGetOpcodeName (Opcode), WalkState->NumOperands); 806 807 return_ACPI_STATUS (Status); 808 } 809 810 811