1 /****************************************************************************** 2 * 3 * Module Name: exoparg2 - AML execution - opcodes with 2 arguments 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2020, 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/acparser.h> 155 #include <contrib/dev/acpica/include/acinterp.h> 156 #include <contrib/dev/acpica/include/acevents.h> 157 #include <contrib/dev/acpica/include/amlcode.h> 158 159 160 #define _COMPONENT ACPI_EXECUTER 161 ACPI_MODULE_NAME ("exoparg2") 162 163 164 /*! 165 * Naming convention for AML interpreter execution routines. 166 * 167 * The routines that begin execution of AML opcodes are named with a common 168 * convention based upon the number of arguments, the number of target operands, 169 * and whether or not a value is returned: 170 * 171 * AcpiExOpcode_xA_yT_zR 172 * 173 * Where: 174 * 175 * xA - ARGUMENTS: The number of arguments (input operands) that are 176 * required for this opcode type (1 through 6 args). 177 * yT - TARGETS: The number of targets (output operands) that are required 178 * for this opcode type (0, 1, or 2 targets). 179 * zR - RETURN VALUE: Indicates whether this opcode type returns a value 180 * as the function return (0 or 1). 181 * 182 * The AcpiExOpcode* functions are called via the Dispatcher component with 183 * fully resolved operands. 184 !*/ 185 186 187 /******************************************************************************* 188 * 189 * FUNCTION: AcpiExOpcode_2A_0T_0R 190 * 191 * PARAMETERS: WalkState - Current walk state 192 * 193 * RETURN: Status 194 * 195 * DESCRIPTION: Execute opcode with two arguments, no target, and no return 196 * value. 197 * 198 * ALLOCATION: Deletes both operands 199 * 200 ******************************************************************************/ 201 202 ACPI_STATUS 203 AcpiExOpcode_2A_0T_0R ( 204 ACPI_WALK_STATE *WalkState) 205 { 206 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 207 ACPI_NAMESPACE_NODE *Node; 208 UINT32 Value; 209 ACPI_STATUS Status = AE_OK; 210 211 212 ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_0R, 213 AcpiPsGetOpcodeName (WalkState->Opcode)); 214 215 216 /* Examine the opcode */ 217 218 switch (WalkState->Opcode) 219 { 220 case AML_NOTIFY_OP: /* Notify (NotifyObject, NotifyValue) */ 221 222 /* The first operand is a namespace node */ 223 224 Node = (ACPI_NAMESPACE_NODE *) Operand[0]; 225 226 /* Second value is the notify value */ 227 228 Value = (UINT32) Operand[1]->Integer.Value; 229 230 /* Are notifies allowed on this object? */ 231 232 if (!AcpiEvIsNotifyObject (Node)) 233 { 234 ACPI_ERROR ((AE_INFO, 235 "Unexpected notify object type [%s]", 236 AcpiUtGetTypeName (Node->Type))); 237 238 Status = AE_AML_OPERAND_TYPE; 239 break; 240 } 241 242 /* 243 * Dispatch the notify to the appropriate handler 244 * NOTE: the request is queued for execution after this method 245 * completes. The notify handlers are NOT invoked synchronously 246 * from this thread -- because handlers may in turn run other 247 * control methods. 248 */ 249 Status = AcpiEvQueueNotifyRequest (Node, Value); 250 break; 251 252 default: 253 254 ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 255 WalkState->Opcode)); 256 Status = AE_AML_BAD_OPCODE; 257 } 258 259 return_ACPI_STATUS (Status); 260 } 261 262 263 /******************************************************************************* 264 * 265 * FUNCTION: AcpiExOpcode_2A_2T_1R 266 * 267 * PARAMETERS: WalkState - Current walk state 268 * 269 * RETURN: Status 270 * 271 * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets 272 * and one implicit return value. 273 * 274 ******************************************************************************/ 275 276 ACPI_STATUS 277 AcpiExOpcode_2A_2T_1R ( 278 ACPI_WALK_STATE *WalkState) 279 { 280 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 281 ACPI_OPERAND_OBJECT *ReturnDesc1 = NULL; 282 ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL; 283 ACPI_STATUS Status; 284 285 286 ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_2T_1R, 287 AcpiPsGetOpcodeName (WalkState->Opcode)); 288 289 290 /* Execute the opcode */ 291 292 switch (WalkState->Opcode) 293 { 294 case AML_DIVIDE_OP: 295 296 /* Divide (Dividend, Divisor, RemainderResult QuotientResult) */ 297 298 ReturnDesc1 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 299 if (!ReturnDesc1) 300 { 301 Status = AE_NO_MEMORY; 302 goto Cleanup; 303 } 304 305 ReturnDesc2 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 306 if (!ReturnDesc2) 307 { 308 Status = AE_NO_MEMORY; 309 goto Cleanup; 310 } 311 312 /* Quotient to ReturnDesc1, remainder to ReturnDesc2 */ 313 314 Status = AcpiUtDivide ( 315 Operand[0]->Integer.Value, 316 Operand[1]->Integer.Value, 317 &ReturnDesc1->Integer.Value, 318 &ReturnDesc2->Integer.Value); 319 if (ACPI_FAILURE (Status)) 320 { 321 goto Cleanup; 322 } 323 break; 324 325 default: 326 327 ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 328 WalkState->Opcode)); 329 330 Status = AE_AML_BAD_OPCODE; 331 goto Cleanup; 332 } 333 334 /* Store the results to the target reference operands */ 335 336 Status = AcpiExStore (ReturnDesc2, Operand[2], WalkState); 337 if (ACPI_FAILURE (Status)) 338 { 339 goto Cleanup; 340 } 341 342 Status = AcpiExStore (ReturnDesc1, Operand[3], WalkState); 343 if (ACPI_FAILURE (Status)) 344 { 345 goto Cleanup; 346 } 347 348 Cleanup: 349 /* 350 * Since the remainder is not returned indirectly, remove a reference to 351 * it. Only the quotient is returned indirectly. 352 */ 353 AcpiUtRemoveReference (ReturnDesc2); 354 355 if (ACPI_FAILURE (Status)) 356 { 357 /* Delete the return object */ 358 359 AcpiUtRemoveReference (ReturnDesc1); 360 } 361 362 /* Save return object (the remainder) on success */ 363 364 else 365 { 366 WalkState->ResultObj = ReturnDesc1; 367 } 368 369 return_ACPI_STATUS (Status); 370 } 371 372 373 /******************************************************************************* 374 * 375 * FUNCTION: AcpiExOpcode_2A_1T_1R 376 * 377 * PARAMETERS: WalkState - Current walk state 378 * 379 * RETURN: Status 380 * 381 * DESCRIPTION: Execute opcode with two arguments, one target, and a return 382 * value. 383 * 384 ******************************************************************************/ 385 386 ACPI_STATUS 387 AcpiExOpcode_2A_1T_1R ( 388 ACPI_WALK_STATE *WalkState) 389 { 390 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 391 ACPI_OPERAND_OBJECT *ReturnDesc = NULL; 392 UINT64 Index; 393 ACPI_STATUS Status = AE_OK; 394 ACPI_SIZE Length = 0; 395 396 397 ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_1T_1R, 398 AcpiPsGetOpcodeName (WalkState->Opcode)); 399 400 401 /* Execute the opcode */ 402 403 if (WalkState->OpInfo->Flags & AML_MATH) 404 { 405 /* All simple math opcodes (add, etc.) */ 406 407 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 408 if (!ReturnDesc) 409 { 410 Status = AE_NO_MEMORY; 411 goto Cleanup; 412 } 413 414 ReturnDesc->Integer.Value = AcpiExDoMathOp ( 415 WalkState->Opcode, 416 Operand[0]->Integer.Value, 417 Operand[1]->Integer.Value); 418 goto StoreResultToTarget; 419 } 420 421 switch (WalkState->Opcode) 422 { 423 case AML_MOD_OP: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */ 424 425 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 426 if (!ReturnDesc) 427 { 428 Status = AE_NO_MEMORY; 429 goto Cleanup; 430 } 431 432 /* ReturnDesc will contain the remainder */ 433 434 Status = AcpiUtDivide ( 435 Operand[0]->Integer.Value, 436 Operand[1]->Integer.Value, 437 NULL, 438 &ReturnDesc->Integer.Value); 439 break; 440 441 case AML_CONCATENATE_OP: /* Concatenate (Data1, Data2, Result) */ 442 443 Status = AcpiExDoConcatenate ( 444 Operand[0], Operand[1], &ReturnDesc, WalkState); 445 break; 446 447 case AML_TO_STRING_OP: /* ToString (Buffer, Length, Result) (ACPI 2.0) */ 448 /* 449 * Input object is guaranteed to be a buffer at this point (it may have 450 * been converted.) Copy the raw buffer data to a new object of 451 * type String. 452 */ 453 454 /* 455 * Get the length of the new string. It is the smallest of: 456 * 1) Length of the input buffer 457 * 2) Max length as specified in the ToString operator 458 * 3) Length of input buffer up to a zero byte (null terminator) 459 * 460 * NOTE: A length of zero is ok, and will create a zero-length, null 461 * terminated string. 462 */ 463 while ((Length < Operand[0]->Buffer.Length) && /* Length of input buffer */ 464 (Length < Operand[1]->Integer.Value) && /* Length operand */ 465 (Operand[0]->Buffer.Pointer[Length])) /* Null terminator */ 466 { 467 Length++; 468 } 469 470 /* Allocate a new string object */ 471 472 ReturnDesc = AcpiUtCreateStringObject (Length); 473 if (!ReturnDesc) 474 { 475 Status = AE_NO_MEMORY; 476 goto Cleanup; 477 } 478 479 /* 480 * Copy the raw buffer data with no transform. 481 * (NULL terminated already) 482 */ 483 memcpy (ReturnDesc->String.Pointer, 484 Operand[0]->Buffer.Pointer, Length); 485 break; 486 487 case AML_CONCATENATE_TEMPLATE_OP: 488 489 /* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */ 490 491 Status = AcpiExConcatTemplate ( 492 Operand[0], Operand[1], &ReturnDesc, WalkState); 493 break; 494 495 case AML_INDEX_OP: /* Index (Source Index Result) */ 496 497 /* Create the internal return object */ 498 499 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE); 500 if (!ReturnDesc) 501 { 502 Status = AE_NO_MEMORY; 503 goto Cleanup; 504 } 505 506 /* Initialize the Index reference object */ 507 508 Index = Operand[1]->Integer.Value; 509 ReturnDesc->Reference.Value = (UINT32) Index; 510 ReturnDesc->Reference.Class = ACPI_REFCLASS_INDEX; 511 512 /* 513 * At this point, the Source operand is a String, Buffer, or Package. 514 * Verify that the index is within range. 515 */ 516 switch ((Operand[0])->Common.Type) 517 { 518 case ACPI_TYPE_STRING: 519 520 if (Index >= Operand[0]->String.Length) 521 { 522 Length = Operand[0]->String.Length; 523 Status = AE_AML_STRING_LIMIT; 524 } 525 526 ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD; 527 ReturnDesc->Reference.IndexPointer = 528 &(Operand[0]->Buffer.Pointer [Index]); 529 break; 530 531 case ACPI_TYPE_BUFFER: 532 533 if (Index >= Operand[0]->Buffer.Length) 534 { 535 Length = Operand[0]->Buffer.Length; 536 Status = AE_AML_BUFFER_LIMIT; 537 } 538 539 ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD; 540 ReturnDesc->Reference.IndexPointer = 541 &(Operand[0]->Buffer.Pointer [Index]); 542 break; 543 544 case ACPI_TYPE_PACKAGE: 545 546 if (Index >= Operand[0]->Package.Count) 547 { 548 Length = Operand[0]->Package.Count; 549 Status = AE_AML_PACKAGE_LIMIT; 550 } 551 552 ReturnDesc->Reference.TargetType = ACPI_TYPE_PACKAGE; 553 ReturnDesc->Reference.Where = 554 &Operand[0]->Package.Elements [Index]; 555 break; 556 557 default: 558 559 ACPI_ERROR ((AE_INFO, 560 "Invalid object type: %X", (Operand[0])->Common.Type)); 561 Status = AE_AML_INTERNAL; 562 goto Cleanup; 563 } 564 565 /* Failure means that the Index was beyond the end of the object */ 566 567 if (ACPI_FAILURE (Status)) 568 { 569 ACPI_BIOS_EXCEPTION ((AE_INFO, Status, 570 "Index (0x%X%8.8X) is beyond end of object (length 0x%X)", 571 ACPI_FORMAT_UINT64 (Index), (UINT32) Length)); 572 goto Cleanup; 573 } 574 575 /* 576 * Save the target object and add a reference to it for the life 577 * of the index 578 */ 579 ReturnDesc->Reference.Object = Operand[0]; 580 AcpiUtAddReference (Operand[0]); 581 582 /* Store the reference to the Target */ 583 584 Status = AcpiExStore (ReturnDesc, Operand[2], WalkState); 585 586 /* Return the reference */ 587 588 WalkState->ResultObj = ReturnDesc; 589 goto Cleanup; 590 591 default: 592 593 ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 594 WalkState->Opcode)); 595 Status = AE_AML_BAD_OPCODE; 596 break; 597 } 598 599 600 StoreResultToTarget: 601 602 if (ACPI_SUCCESS (Status)) 603 { 604 /* 605 * Store the result of the operation (which is now in ReturnDesc) into 606 * the Target descriptor. 607 */ 608 Status = AcpiExStore (ReturnDesc, Operand[2], WalkState); 609 if (ACPI_FAILURE (Status)) 610 { 611 goto Cleanup; 612 } 613 614 if (!WalkState->ResultObj) 615 { 616 WalkState->ResultObj = ReturnDesc; 617 } 618 } 619 620 621 Cleanup: 622 623 /* Delete return object on error */ 624 625 if (ACPI_FAILURE (Status)) 626 { 627 AcpiUtRemoveReference (ReturnDesc); 628 WalkState->ResultObj = NULL; 629 } 630 631 return_ACPI_STATUS (Status); 632 } 633 634 635 /******************************************************************************* 636 * 637 * FUNCTION: AcpiExOpcode_2A_0T_1R 638 * 639 * PARAMETERS: WalkState - Current walk state 640 * 641 * RETURN: Status 642 * 643 * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value 644 * 645 ******************************************************************************/ 646 647 ACPI_STATUS 648 AcpiExOpcode_2A_0T_1R ( 649 ACPI_WALK_STATE *WalkState) 650 { 651 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 652 ACPI_OPERAND_OBJECT *ReturnDesc = NULL; 653 ACPI_STATUS Status = AE_OK; 654 BOOLEAN LogicalResult = FALSE; 655 656 657 ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_1R, 658 AcpiPsGetOpcodeName (WalkState->Opcode)); 659 660 661 /* Create the internal return object */ 662 663 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 664 if (!ReturnDesc) 665 { 666 Status = AE_NO_MEMORY; 667 goto Cleanup; 668 } 669 670 /* Execute the Opcode */ 671 672 if (WalkState->OpInfo->Flags & AML_LOGICAL_NUMERIC) 673 { 674 /* LogicalOp (Operand0, Operand1) */ 675 676 Status = AcpiExDoLogicalNumericOp (WalkState->Opcode, 677 Operand[0]->Integer.Value, Operand[1]->Integer.Value, 678 &LogicalResult); 679 goto StoreLogicalResult; 680 } 681 else if (WalkState->OpInfo->Flags & AML_LOGICAL) 682 { 683 /* LogicalOp (Operand0, Operand1) */ 684 685 Status = AcpiExDoLogicalOp (WalkState->Opcode, Operand[0], 686 Operand[1], &LogicalResult); 687 goto StoreLogicalResult; 688 } 689 690 switch (WalkState->Opcode) 691 { 692 case AML_ACQUIRE_OP: /* Acquire (MutexObject, Timeout) */ 693 694 Status = AcpiExAcquireMutex (Operand[1], Operand[0], WalkState); 695 if (Status == AE_TIME) 696 { 697 LogicalResult = TRUE; /* TRUE = Acquire timed out */ 698 Status = AE_OK; 699 } 700 break; 701 702 703 case AML_WAIT_OP: /* Wait (EventObject, Timeout) */ 704 705 Status = AcpiExSystemWaitEvent (Operand[1], Operand[0]); 706 if (Status == AE_TIME) 707 { 708 LogicalResult = TRUE; /* TRUE, Wait timed out */ 709 Status = AE_OK; 710 } 711 break; 712 713 default: 714 715 ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 716 WalkState->Opcode)); 717 718 Status = AE_AML_BAD_OPCODE; 719 goto Cleanup; 720 } 721 722 723 StoreLogicalResult: 724 /* 725 * Set return value to according to LogicalResult. logical TRUE (all ones) 726 * Default is FALSE (zero) 727 */ 728 if (LogicalResult) 729 { 730 ReturnDesc->Integer.Value = ACPI_UINT64_MAX; 731 } 732 733 Cleanup: 734 735 /* Delete return object on error */ 736 737 if (ACPI_FAILURE (Status)) 738 { 739 AcpiUtRemoveReference (ReturnDesc); 740 } 741 742 /* Save return object on success */ 743 744 else 745 { 746 WalkState->ResultObj = ReturnDesc; 747 } 748 749 return_ACPI_STATUS (Status); 750 } 751