1/****************************************************************************** 2 * 3 * Module Name: exresop - AML Interpreter operand/object resolution 4 * 5 *****************************************************************************/ 6 7/****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152#include "acpi.h" 153#include "accommon.h" 154#include "amlcode.h" 155#include "acparser.h" 156#include "acinterp.h" 157#include "acnamesp.h" 158 159 160#define _COMPONENT ACPI_EXECUTER 161 ACPI_MODULE_NAME ("exresop") 162 163/* Local prototypes */ 164 165static ACPI_STATUS 166AcpiExCheckObjectType ( 167 ACPI_OBJECT_TYPE TypeNeeded, 168 ACPI_OBJECT_TYPE ThisType, 169 void *Object); 170 171 172/******************************************************************************* 173 * 174 * FUNCTION: AcpiExCheckObjectType 175 * 176 * PARAMETERS: TypeNeeded Object type needed 177 * ThisType Actual object type 178 * Object Object pointer 179 * 180 * RETURN: Status 181 * 182 * DESCRIPTION: Check required type against actual type 183 * 184 ******************************************************************************/ 185 186static ACPI_STATUS 187AcpiExCheckObjectType ( 188 ACPI_OBJECT_TYPE TypeNeeded, 189 ACPI_OBJECT_TYPE ThisType, 190 void *Object) 191{ 192 ACPI_FUNCTION_ENTRY (); 193 194 195 if (TypeNeeded == ACPI_TYPE_ANY) 196 { 197 /* All types OK, so we don't perform any typechecks */ 198 199 return (AE_OK); 200 } 201 202 if (TypeNeeded == ACPI_TYPE_LOCAL_REFERENCE) 203 { 204 /* 205 * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference 206 * objects and thus allow them to be targets. (As per the ACPI 207 * specification, a store to a constant is a noop.) 208 */ 209 if ((ThisType == ACPI_TYPE_INTEGER) && 210 (((ACPI_OPERAND_OBJECT *) Object)->Common.Flags & 211 AOPOBJ_AML_CONSTANT)) 212 { 213 return (AE_OK); 214 } 215 } 216 217 if (TypeNeeded != ThisType) 218 { 219 ACPI_ERROR ((AE_INFO, 220 "Needed type [%s], found [%s] %p", 221 AcpiUtGetTypeName (TypeNeeded), 222 AcpiUtGetTypeName (ThisType), Object)); 223 224 return (AE_AML_OPERAND_TYPE); 225 } 226 227 return (AE_OK); 228} 229 230 231/******************************************************************************* 232 * 233 * FUNCTION: AcpiExResolveOperands 234 * 235 * PARAMETERS: Opcode - Opcode being interpreted 236 * StackPtr - Pointer to the operand stack to be 237 * resolved 238 * WalkState - Current state 239 * 240 * RETURN: Status 241 * 242 * DESCRIPTION: Convert multiple input operands to the types required by the 243 * target operator. 244 * 245 * Each 5-bit group in ArgTypes represents one required 246 * operand and indicates the required Type. The corresponding operand 247 * will be converted to the required type if possible, otherwise we 248 * abort with an exception. 249 * 250 ******************************************************************************/ 251 252ACPI_STATUS 253AcpiExResolveOperands ( 254 UINT16 Opcode, 255 ACPI_OPERAND_OBJECT **StackPtr, 256 ACPI_WALK_STATE *WalkState) 257{ 258 ACPI_OPERAND_OBJECT *ObjDesc; 259 ACPI_STATUS Status = AE_OK; 260 UINT8 ObjectType; 261 UINT32 ArgTypes; 262 const ACPI_OPCODE_INFO *OpInfo; 263 UINT32 ThisArgType; 264 ACPI_OBJECT_TYPE TypeNeeded; 265 UINT16 TargetOp = 0; 266 267 268 ACPI_FUNCTION_TRACE_U32 (ExResolveOperands, Opcode); 269 270 271 OpInfo = AcpiPsGetOpcodeInfo (Opcode); 272 if (OpInfo->Class == AML_CLASS_UNKNOWN) 273 { 274 return_ACPI_STATUS (AE_AML_BAD_OPCODE); 275 } 276 277 ArgTypes = OpInfo->RuntimeArgs; 278 if (ArgTypes == ARGI_INVALID_OPCODE) 279 { 280 ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 281 Opcode)); 282 283 return_ACPI_STATUS (AE_AML_INTERNAL); 284 } 285 286 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 287 "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", 288 Opcode, OpInfo->Name, ArgTypes)); 289 290 /* 291 * Normal exit is with (ArgTypes == 0) at end of argument list. 292 * Function will return an exception from within the loop upon 293 * finding an entry which is not (or cannot be converted 294 * to) the required type; if stack underflows; or upon 295 * finding a NULL stack entry (which should not happen). 296 */ 297 while (GET_CURRENT_ARG_TYPE (ArgTypes)) 298 { 299 if (!StackPtr || !*StackPtr) 300 { 301 ACPI_ERROR ((AE_INFO, "Null stack entry at %p", 302 StackPtr)); 303 304 return_ACPI_STATUS (AE_AML_INTERNAL); 305 } 306 307 /* Extract useful items */ 308 309 ObjDesc = *StackPtr; 310 311 /* Decode the descriptor type */ 312 313 switch (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc)) 314 { 315 case ACPI_DESC_TYPE_NAMED: 316 317 /* Namespace Node */ 318 319 ObjectType = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Type; 320 321 /* 322 * Resolve an alias object. The construction of these objects 323 * guarantees that there is only one level of alias indirection; 324 * thus, the attached object is always the aliased namespace node 325 */ 326 if (ObjectType == ACPI_TYPE_LOCAL_ALIAS) 327 { 328 ObjDesc = AcpiNsGetAttachedObject ( 329 (ACPI_NAMESPACE_NODE *) ObjDesc); 330 *StackPtr = ObjDesc; 331 ObjectType = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Type; 332 } 333 break; 334 335 case ACPI_DESC_TYPE_OPERAND: 336 337 /* ACPI internal object */ 338 339 ObjectType = ObjDesc->Common.Type; 340 341 /* Check for bad ACPI_OBJECT_TYPE */ 342 343 if (!AcpiUtValidObjectType (ObjectType)) 344 { 345 ACPI_ERROR ((AE_INFO, 346 "Bad operand object type [0x%X]", ObjectType)); 347 348 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 349 } 350 351 if (ObjectType == (UINT8) ACPI_TYPE_LOCAL_REFERENCE) 352 { 353 /* Validate the Reference */ 354 355 switch (ObjDesc->Reference.Class) 356 { 357 case ACPI_REFCLASS_DEBUG: 358 359 TargetOp = AML_DEBUG_OP; 360 361 ACPI_FALLTHROUGH; 362 363 case ACPI_REFCLASS_ARG: 364 case ACPI_REFCLASS_LOCAL: 365 case ACPI_REFCLASS_INDEX: 366 case ACPI_REFCLASS_REFOF: 367 case ACPI_REFCLASS_TABLE: /* DdbHandle from LOAD_OP or LOAD_TABLE_OP */ 368 case ACPI_REFCLASS_NAME: /* Reference to a named object */ 369 370 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 371 "Operand is a Reference, Class [%s] %2.2X\n", 372 AcpiUtGetReferenceName (ObjDesc), 373 ObjDesc->Reference.Class)); 374 break; 375 376 default: 377 378 ACPI_ERROR ((AE_INFO, 379 "Unknown Reference Class 0x%2.2X in %p", 380 ObjDesc->Reference.Class, ObjDesc)); 381 382 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 383 } 384 } 385 break; 386 387 default: 388 389 /* Invalid descriptor */ 390 391 ACPI_ERROR ((AE_INFO, "Invalid descriptor %p [%s]", 392 ObjDesc, AcpiUtGetDescriptorName (ObjDesc))); 393 394 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 395 } 396 397 /* Get one argument type, point to the next */ 398 399 ThisArgType = GET_CURRENT_ARG_TYPE (ArgTypes); 400 INCREMENT_ARG_LIST (ArgTypes); 401 402 /* 403 * Handle cases where the object does not need to be 404 * resolved to a value 405 */ 406 switch (ThisArgType) 407 { 408 case ARGI_REF_OR_STRING: /* Can be a String or Reference */ 409 410 if ((ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == 411 ACPI_DESC_TYPE_OPERAND) && 412 (ObjDesc->Common.Type == ACPI_TYPE_STRING)) 413 { 414 /* 415 * String found - the string references a named object and 416 * must be resolved to a node 417 */ 418 goto NextOperand; 419 } 420 421 /* 422 * Else not a string - fall through to the normal Reference 423 * case below 424 */ 425 ACPI_FALLTHROUGH; 426 427 case ARGI_REFERENCE: /* References: */ 428 case ARGI_INTEGER_REF: 429 case ARGI_OBJECT_REF: 430 case ARGI_DEVICE_REF: 431 case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ 432 case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ 433 case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ 434 case ARGI_STORE_TARGET: 435 436 /* 437 * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE 438 * A Namespace Node is OK as-is 439 */ 440 if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_NAMED) 441 { 442 goto NextOperand; 443 } 444 445 Status = AcpiExCheckObjectType ( 446 ACPI_TYPE_LOCAL_REFERENCE, ObjectType, ObjDesc); 447 if (ACPI_FAILURE (Status)) 448 { 449 return_ACPI_STATUS (Status); 450 } 451 goto NextOperand; 452 453 case ARGI_DATAREFOBJ: /* Store operator only */ 454 /* 455 * We don't want to resolve IndexOp reference objects during 456 * a store because this would be an implicit DeRefOf operation. 457 * Instead, we just want to store the reference object. 458 * -- All others must be resolved below. 459 */ 460 if ((Opcode == AML_STORE_OP) && 461 ((*StackPtr)->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && 462 ((*StackPtr)->Reference.Class == ACPI_REFCLASS_INDEX)) 463 { 464 goto NextOperand; 465 } 466 break; 467 468 default: 469 470 /* All cases covered above */ 471 472 break; 473 } 474 475 /* 476 * Resolve this object to a value 477 */ 478 Status = AcpiExResolveToValue (StackPtr, WalkState); 479 if (ACPI_FAILURE (Status)) 480 { 481 return_ACPI_STATUS (Status); 482 } 483 484 /* Get the resolved object */ 485 486 ObjDesc = *StackPtr; 487 488 /* 489 * Check the resulting object (value) type 490 */ 491 switch (ThisArgType) 492 { 493 /* 494 * For the simple cases, only one type of resolved object 495 * is allowed 496 */ 497 case ARGI_MUTEX: 498 499 /* Need an operand of type ACPI_TYPE_MUTEX */ 500 501 TypeNeeded = ACPI_TYPE_MUTEX; 502 break; 503 504 case ARGI_EVENT: 505 506 /* Need an operand of type ACPI_TYPE_EVENT */ 507 508 TypeNeeded = ACPI_TYPE_EVENT; 509 break; 510 511 case ARGI_PACKAGE: /* Package */ 512 513 /* Need an operand of type ACPI_TYPE_PACKAGE */ 514 515 TypeNeeded = ACPI_TYPE_PACKAGE; 516 break; 517 518 case ARGI_ANYTYPE: 519 520 /* Any operand type will do */ 521 522 TypeNeeded = ACPI_TYPE_ANY; 523 break; 524 525 case ARGI_DDBHANDLE: 526 527 /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ 528 529 TypeNeeded = ACPI_TYPE_LOCAL_REFERENCE; 530 break; 531 532 533 /* 534 * The more complex cases allow multiple resolved object types 535 */ 536 case ARGI_INTEGER: 537 538 /* 539 * Need an operand of type ACPI_TYPE_INTEGER, but we can 540 * implicitly convert from a STRING or BUFFER. 541 * 542 * Known as "Implicit Source Operand Conversion" 543 */ 544 Status = AcpiExConvertToInteger (ObjDesc, StackPtr, 545 ACPI_IMPLICIT_CONVERSION); 546 if (ACPI_FAILURE (Status)) 547 { 548 if (Status == AE_TYPE) 549 { 550 ACPI_ERROR ((AE_INFO, 551 "Needed [Integer/String/Buffer], found [%s] %p", 552 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 553 554 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 555 } 556 557 return_ACPI_STATUS (Status); 558 } 559 560 if (ObjDesc != *StackPtr) 561 { 562 AcpiUtRemoveReference (ObjDesc); 563 } 564 goto NextOperand; 565 566 case ARGI_BUFFER: 567 /* 568 * Need an operand of type ACPI_TYPE_BUFFER, 569 * But we can implicitly convert from a STRING or INTEGER 570 * Aka - "Implicit Source Operand Conversion" 571 */ 572 Status = AcpiExConvertToBuffer (ObjDesc, StackPtr); 573 if (ACPI_FAILURE (Status)) 574 { 575 if (Status == AE_TYPE) 576 { 577 ACPI_ERROR ((AE_INFO, 578 "Needed [Integer/String/Buffer], found [%s] %p", 579 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 580 581 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 582 } 583 584 return_ACPI_STATUS (Status); 585 } 586 587 if (ObjDesc != *StackPtr) 588 { 589 AcpiUtRemoveReference (ObjDesc); 590 } 591 goto NextOperand; 592 593 case ARGI_STRING: 594 /* 595 * Need an operand of type ACPI_TYPE_STRING, 596 * But we can implicitly convert from a BUFFER or INTEGER 597 * Aka - "Implicit Source Operand Conversion" 598 */ 599 Status = AcpiExConvertToString ( 600 ObjDesc, StackPtr, ACPI_IMPLICIT_CONVERT_HEX); 601 if (ACPI_FAILURE (Status)) 602 { 603 if (Status == AE_TYPE) 604 { 605 ACPI_ERROR ((AE_INFO, 606 "Needed [Integer/String/Buffer], found [%s] %p", 607 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 608 609 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 610 } 611 612 return_ACPI_STATUS (Status); 613 } 614 615 if (ObjDesc != *StackPtr) 616 { 617 AcpiUtRemoveReference (ObjDesc); 618 } 619 goto NextOperand; 620 621 case ARGI_COMPUTEDATA: 622 623 /* Need an operand of type INTEGER, STRING or BUFFER */ 624 625 switch (ObjDesc->Common.Type) 626 { 627 case ACPI_TYPE_INTEGER: 628 case ACPI_TYPE_STRING: 629 case ACPI_TYPE_BUFFER: 630 631 /* Valid operand */ 632 break; 633 634 default: 635 ACPI_ERROR ((AE_INFO, 636 "Needed [Integer/String/Buffer], found [%s] %p", 637 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 638 639 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 640 } 641 goto NextOperand; 642 643 case ARGI_BUFFER_OR_STRING: 644 645 /* Need an operand of type STRING or BUFFER */ 646 647 switch (ObjDesc->Common.Type) 648 { 649 case ACPI_TYPE_STRING: 650 case ACPI_TYPE_BUFFER: 651 652 /* Valid operand */ 653 break; 654 655 case ACPI_TYPE_INTEGER: 656 657 /* Highest priority conversion is to type Buffer */ 658 659 Status = AcpiExConvertToBuffer (ObjDesc, StackPtr); 660 if (ACPI_FAILURE (Status)) 661 { 662 return_ACPI_STATUS (Status); 663 } 664 665 if (ObjDesc != *StackPtr) 666 { 667 AcpiUtRemoveReference (ObjDesc); 668 } 669 break; 670 671 default: 672 ACPI_ERROR ((AE_INFO, 673 "Needed [Integer/String/Buffer], found [%s] %p", 674 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 675 676 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 677 } 678 goto NextOperand; 679 680 case ARGI_DATAOBJECT: 681 /* 682 * ARGI_DATAOBJECT is only used by the SizeOf operator. 683 * Need a buffer, string, package, or RefOf reference. 684 * 685 * The only reference allowed here is a direct reference to 686 * a namespace node. 687 */ 688 switch (ObjDesc->Common.Type) 689 { 690 case ACPI_TYPE_PACKAGE: 691 case ACPI_TYPE_STRING: 692 case ACPI_TYPE_BUFFER: 693 case ACPI_TYPE_LOCAL_REFERENCE: 694 695 /* Valid operand */ 696 break; 697 698 default: 699 700 ACPI_ERROR ((AE_INFO, 701 "Needed [Buffer/String/Package/Reference], found [%s] %p", 702 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 703 704 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 705 } 706 goto NextOperand; 707 708 case ARGI_COMPLEXOBJ: 709 710 /* Need a buffer or package or (ACPI 2.0) String */ 711 712 switch (ObjDesc->Common.Type) 713 { 714 case ACPI_TYPE_PACKAGE: 715 case ACPI_TYPE_STRING: 716 case ACPI_TYPE_BUFFER: 717 718 /* Valid operand */ 719 break; 720 721 default: 722 723 ACPI_ERROR ((AE_INFO, 724 "Needed [Buffer/String/Package], found [%s] %p", 725 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 726 727 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 728 } 729 goto NextOperand; 730 731 case ARGI_REGION_OR_BUFFER: /* Used by Load() only */ 732 733 /* 734 * Need an operand of type REGION or a BUFFER 735 * (which could be a resolved region field) 736 */ 737 switch (ObjDesc->Common.Type) 738 { 739 case ACPI_TYPE_BUFFER: 740 case ACPI_TYPE_REGION: 741 742 /* Valid operand */ 743 break; 744 745 default: 746 747 ACPI_ERROR ((AE_INFO, 748 "Needed [Region/Buffer], found [%s] %p", 749 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 750 751 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 752 } 753 goto NextOperand; 754 755 case ARGI_DATAREFOBJ: 756 757 /* Used by the Store() operator only */ 758 759 switch (ObjDesc->Common.Type) 760 { 761 case ACPI_TYPE_INTEGER: 762 case ACPI_TYPE_PACKAGE: 763 case ACPI_TYPE_STRING: 764 case ACPI_TYPE_BUFFER: 765 case ACPI_TYPE_BUFFER_FIELD: 766 case ACPI_TYPE_LOCAL_REFERENCE: 767 case ACPI_TYPE_LOCAL_REGION_FIELD: 768 case ACPI_TYPE_LOCAL_BANK_FIELD: 769 case ACPI_TYPE_LOCAL_INDEX_FIELD: 770 case ACPI_TYPE_DDB_HANDLE: 771 772 /* Valid operand */ 773 break; 774 775 default: 776 777 if (AcpiGbl_EnableInterpreterSlack) 778 { 779 /* 780 * Enable original behavior of Store(), allowing any 781 * and all objects as the source operand. The ACPI 782 * spec does not allow this, however. 783 */ 784 break; 785 } 786 787 if (TargetOp == AML_DEBUG_OP) 788 { 789 /* Allow store of any object to the Debug object */ 790 791 break; 792 } 793 794 ACPI_ERROR ((AE_INFO, 795 "Needed Integer/Buffer/String/Package/Ref/Ddb]" 796 ", found [%s] %p", 797 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 798 799 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 800 } 801 goto NextOperand; 802 803 default: 804 805 /* Unknown type */ 806 807 ACPI_ERROR ((AE_INFO, 808 "Internal - Unknown ARGI (required operand) type 0x%X", 809 ThisArgType)); 810 811 return_ACPI_STATUS (AE_BAD_PARAMETER); 812 } 813 814 /* 815 * Make sure that the original object was resolved to the 816 * required object type (Simple cases only). 817 */ 818 Status = AcpiExCheckObjectType ( 819 TypeNeeded, (*StackPtr)->Common.Type, *StackPtr); 820 if (ACPI_FAILURE (Status)) 821 { 822 return_ACPI_STATUS (Status); 823 } 824 825NextOperand: 826 /* 827 * If more operands needed, decrement StackPtr to point 828 * to next operand on stack 829 */ 830 if (GET_CURRENT_ARG_TYPE (ArgTypes)) 831 { 832 StackPtr--; 833 } 834 } 835 836 ACPI_DUMP_OPERANDS (WalkState->Operands, 837 AcpiPsGetOpcodeName (Opcode), WalkState->NumOperands); 838 839 return_ACPI_STATUS (Status); 840} 841