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 - 2018, 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 <contrib/dev/acpica/include/acpi.h> 153 #include <contrib/dev/acpica/include/accommon.h> 154 #include <contrib/dev/acpica/include/amlcode.h> 155 #include <contrib/dev/acpica/include/acparser.h> 156 #include <contrib/dev/acpica/include/acinterp.h> 157 #include <contrib/dev/acpica/include/acnamesp.h> 158 159 160 #define _COMPONENT ACPI_EXECUTER 161 ACPI_MODULE_NAME ("exresop") 162 163 /* Local prototypes */ 164 165 static ACPI_STATUS 166 AcpiExCheckObjectType ( 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 ******************************************************************************/ 185 186 static ACPI_STATUS 187 AcpiExCheckObjectType ( 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 ******************************************************************************/ 251 252 ACPI_STATUS 253 AcpiExResolveOperands ( 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 /*lint -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 /*lint -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_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ 433 case ARGI_STORE_TARGET: 434 435 /* 436 * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE 437 * A Namespace Node is OK as-is 438 */ 439 if (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_NAMED) 440 { 441 goto NextOperand; 442 } 443 444 Status = AcpiExCheckObjectType ( 445 ACPI_TYPE_LOCAL_REFERENCE, ObjectType, ObjDesc); 446 if (ACPI_FAILURE (Status)) 447 { 448 return_ACPI_STATUS (Status); 449 } 450 goto NextOperand; 451 452 case ARGI_DATAREFOBJ: /* Store operator only */ 453 /* 454 * We don't want to resolve IndexOp reference objects during 455 * a store because this would be an implicit DeRefOf operation. 456 * Instead, we just want to store the reference object. 457 * -- All others must be resolved below. 458 */ 459 if ((Opcode == AML_STORE_OP) && 460 ((*StackPtr)->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && 461 ((*StackPtr)->Reference.Class == ACPI_REFCLASS_INDEX)) 462 { 463 goto NextOperand; 464 } 465 break; 466 467 default: 468 469 /* All cases covered above */ 470 471 break; 472 } 473 474 /* 475 * Resolve this object to a value 476 */ 477 Status = AcpiExResolveToValue (StackPtr, WalkState); 478 if (ACPI_FAILURE (Status)) 479 { 480 return_ACPI_STATUS (Status); 481 } 482 483 /* Get the resolved object */ 484 485 ObjDesc = *StackPtr; 486 487 /* 488 * Check the resulting object (value) type 489 */ 490 switch (ThisArgType) 491 { 492 /* 493 * For the simple cases, only one type of resolved object 494 * is allowed 495 */ 496 case ARGI_MUTEX: 497 498 /* Need an operand of type ACPI_TYPE_MUTEX */ 499 500 TypeNeeded = ACPI_TYPE_MUTEX; 501 break; 502 503 case ARGI_EVENT: 504 505 /* Need an operand of type ACPI_TYPE_EVENT */ 506 507 TypeNeeded = ACPI_TYPE_EVENT; 508 break; 509 510 case ARGI_PACKAGE: /* Package */ 511 512 /* Need an operand of type ACPI_TYPE_PACKAGE */ 513 514 TypeNeeded = ACPI_TYPE_PACKAGE; 515 break; 516 517 case ARGI_ANYTYPE: 518 519 /* Any operand type will do */ 520 521 TypeNeeded = ACPI_TYPE_ANY; 522 break; 523 524 case ARGI_DDBHANDLE: 525 526 /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ 527 528 TypeNeeded = ACPI_TYPE_LOCAL_REFERENCE; 529 break; 530 531 532 /* 533 * The more complex cases allow multiple resolved object types 534 */ 535 case ARGI_INTEGER: 536 537 /* 538 * Need an operand of type ACPI_TYPE_INTEGER, but we can 539 * implicitly convert from a STRING or BUFFER. 540 * 541 * Known as "Implicit Source Operand Conversion" 542 */ 543 Status = AcpiExConvertToInteger (ObjDesc, StackPtr, 544 ACPI_IMPLICIT_CONVERSION); 545 if (ACPI_FAILURE (Status)) 546 { 547 if (Status == AE_TYPE) 548 { 549 ACPI_ERROR ((AE_INFO, 550 "Needed [Integer/String/Buffer], found [%s] %p", 551 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 552 553 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 554 } 555 556 return_ACPI_STATUS (Status); 557 } 558 559 if (ObjDesc != *StackPtr) 560 { 561 AcpiUtRemoveReference (ObjDesc); 562 } 563 goto NextOperand; 564 565 case ARGI_BUFFER: 566 /* 567 * Need an operand of type ACPI_TYPE_BUFFER, 568 * But we can implicitly convert from a STRING or INTEGER 569 * Aka - "Implicit Source Operand Conversion" 570 */ 571 Status = AcpiExConvertToBuffer (ObjDesc, StackPtr); 572 if (ACPI_FAILURE (Status)) 573 { 574 if (Status == AE_TYPE) 575 { 576 ACPI_ERROR ((AE_INFO, 577 "Needed [Integer/String/Buffer], found [%s] %p", 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 case ARGI_STRING: 593 /* 594 * Need an operand of type ACPI_TYPE_STRING, 595 * But we can implicitly convert from a BUFFER or INTEGER 596 * Aka - "Implicit Source Operand Conversion" 597 */ 598 Status = AcpiExConvertToString ( 599 ObjDesc, StackPtr, ACPI_IMPLICIT_CONVERT_HEX); 600 if (ACPI_FAILURE (Status)) 601 { 602 if (Status == AE_TYPE) 603 { 604 ACPI_ERROR ((AE_INFO, 605 "Needed [Integer/String/Buffer], found [%s] %p", 606 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 607 608 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 609 } 610 611 return_ACPI_STATUS (Status); 612 } 613 614 if (ObjDesc != *StackPtr) 615 { 616 AcpiUtRemoveReference (ObjDesc); 617 } 618 goto NextOperand; 619 620 case ARGI_COMPUTEDATA: 621 622 /* Need an operand of type INTEGER, STRING or BUFFER */ 623 624 switch (ObjDesc->Common.Type) 625 { 626 case ACPI_TYPE_INTEGER: 627 case ACPI_TYPE_STRING: 628 case ACPI_TYPE_BUFFER: 629 630 /* Valid operand */ 631 break; 632 633 default: 634 ACPI_ERROR ((AE_INFO, 635 "Needed [Integer/String/Buffer], found [%s] %p", 636 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 637 638 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 639 } 640 goto NextOperand; 641 642 case ARGI_BUFFER_OR_STRING: 643 644 /* Need an operand of type STRING or BUFFER */ 645 646 switch (ObjDesc->Common.Type) 647 { 648 case ACPI_TYPE_STRING: 649 case ACPI_TYPE_BUFFER: 650 651 /* Valid operand */ 652 break; 653 654 case ACPI_TYPE_INTEGER: 655 656 /* Highest priority conversion is to type Buffer */ 657 658 Status = AcpiExConvertToBuffer (ObjDesc, StackPtr); 659 if (ACPI_FAILURE (Status)) 660 { 661 return_ACPI_STATUS (Status); 662 } 663 664 if (ObjDesc != *StackPtr) 665 { 666 AcpiUtRemoveReference (ObjDesc); 667 } 668 break; 669 670 default: 671 ACPI_ERROR ((AE_INFO, 672 "Needed [Integer/String/Buffer], found [%s] %p", 673 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 674 675 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 676 } 677 goto NextOperand; 678 679 case ARGI_DATAOBJECT: 680 /* 681 * ARGI_DATAOBJECT is only used by the SizeOf operator. 682 * Need a buffer, string, package, or RefOf reference. 683 * 684 * The only reference allowed here is a direct reference to 685 * a namespace node. 686 */ 687 switch (ObjDesc->Common.Type) 688 { 689 case ACPI_TYPE_PACKAGE: 690 case ACPI_TYPE_STRING: 691 case ACPI_TYPE_BUFFER: 692 case ACPI_TYPE_LOCAL_REFERENCE: 693 694 /* Valid operand */ 695 break; 696 697 default: 698 699 ACPI_ERROR ((AE_INFO, 700 "Needed [Buffer/String/Package/Reference], found [%s] %p", 701 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 702 703 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 704 } 705 goto NextOperand; 706 707 case ARGI_COMPLEXOBJ: 708 709 /* Need a buffer or package or (ACPI 2.0) String */ 710 711 switch (ObjDesc->Common.Type) 712 { 713 case ACPI_TYPE_PACKAGE: 714 case ACPI_TYPE_STRING: 715 case ACPI_TYPE_BUFFER: 716 717 /* Valid operand */ 718 break; 719 720 default: 721 722 ACPI_ERROR ((AE_INFO, 723 "Needed [Buffer/String/Package], found [%s] %p", 724 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 725 726 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 727 } 728 goto NextOperand; 729 730 case ARGI_REGION_OR_BUFFER: /* Used by Load() only */ 731 732 /* 733 * Need an operand of type REGION or a BUFFER 734 * (which could be a resolved region field) 735 */ 736 switch (ObjDesc->Common.Type) 737 { 738 case ACPI_TYPE_BUFFER: 739 case ACPI_TYPE_REGION: 740 741 /* Valid operand */ 742 break; 743 744 default: 745 746 ACPI_ERROR ((AE_INFO, 747 "Needed [Region/Buffer], found [%s] %p", 748 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 749 750 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 751 } 752 goto NextOperand; 753 754 case ARGI_DATAREFOBJ: 755 756 /* Used by the Store() operator only */ 757 758 switch (ObjDesc->Common.Type) 759 { 760 case ACPI_TYPE_INTEGER: 761 case ACPI_TYPE_PACKAGE: 762 case ACPI_TYPE_STRING: 763 case ACPI_TYPE_BUFFER: 764 case ACPI_TYPE_BUFFER_FIELD: 765 case ACPI_TYPE_LOCAL_REFERENCE: 766 case ACPI_TYPE_LOCAL_REGION_FIELD: 767 case ACPI_TYPE_LOCAL_BANK_FIELD: 768 case ACPI_TYPE_LOCAL_INDEX_FIELD: 769 case ACPI_TYPE_DDB_HANDLE: 770 771 /* Valid operand */ 772 break; 773 774 default: 775 776 if (AcpiGbl_EnableInterpreterSlack) 777 { 778 /* 779 * Enable original behavior of Store(), allowing any 780 * and all objects as the source operand. The ACPI 781 * spec does not allow this, however. 782 */ 783 break; 784 } 785 786 if (TargetOp == AML_DEBUG_OP) 787 { 788 /* Allow store of any object to the Debug object */ 789 790 break; 791 } 792 793 ACPI_ERROR ((AE_INFO, 794 "Needed Integer/Buffer/String/Package/Ref/Ddb]" 795 ", found [%s] %p", 796 AcpiUtGetObjectTypeName (ObjDesc), ObjDesc)); 797 798 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 799 } 800 goto NextOperand; 801 802 default: 803 804 /* Unknown type */ 805 806 ACPI_ERROR ((AE_INFO, 807 "Internal - Unknown ARGI (required operand) type 0x%X", 808 ThisArgType)); 809 810 return_ACPI_STATUS (AE_BAD_PARAMETER); 811 } 812 813 /* 814 * Make sure that the original object was resolved to the 815 * required object type (Simple cases only). 816 */ 817 Status = AcpiExCheckObjectType ( 818 TypeNeeded, (*StackPtr)->Common.Type, *StackPtr); 819 if (ACPI_FAILURE (Status)) 820 { 821 return_ACPI_STATUS (Status); 822 } 823 824 NextOperand: 825 /* 826 * If more operands needed, decrement StackPtr to point 827 * to next operand on stack 828 */ 829 if (GET_CURRENT_ARG_TYPE (ArgTypes)) 830 { 831 StackPtr--; 832 } 833 } 834 835 ACPI_DUMP_OPERANDS (WalkState->Operands, 836 AcpiPsGetOpcodeName (Opcode), WalkState->NumOperands); 837 838 return_ACPI_STATUS (Status); 839 } 840