| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: exoparg2 - AML execution - opcodes with 2 arguments |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
| 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
| 44 | #include "acpi.h" |
| 45 | #include "accommon.h" |
| 46 | #include "acparser.h" |
| 47 | #include "acinterp.h" |
| 48 | #include "acevents.h" |
| 49 | #include "amlcode.h" |
| 50 | |
| 51 | |
| 52 | #define _COMPONENT ACPI_EXECUTER |
| 53 | ACPI_MODULE_NAME ("exoparg2" ) |
| 54 | |
| 55 | |
| 56 | /*! |
| 57 | * Naming convention for AML interpreter execution routines. |
| 58 | * |
| 59 | * The routines that begin execution of AML opcodes are named with a common |
| 60 | * convention based upon the number of arguments, the number of target operands, |
| 61 | * and whether or not a value is returned: |
| 62 | * |
| 63 | * AcpiExOpcode_xA_yT_zR |
| 64 | * |
| 65 | * Where: |
| 66 | * |
| 67 | * xA - ARGUMENTS: The number of arguments (input operands) that are |
| 68 | * required for this opcode type (1 through 6 args). |
| 69 | * yT - TARGETS: The number of targets (output operands) that are required |
| 70 | * for this opcode type (0, 1, or 2 targets). |
| 71 | * zR - RETURN VALUE: Indicates whether this opcode type returns a value |
| 72 | * as the function return (0 or 1). |
| 73 | * |
| 74 | * The AcpiExOpcode* functions are called via the Dispatcher component with |
| 75 | * fully resolved operands. |
| 76 | !*/ |
| 77 | |
| 78 | |
| 79 | /******************************************************************************* |
| 80 | * |
| 81 | * FUNCTION: AcpiExOpcode_2A_0T_0R |
| 82 | * |
| 83 | * PARAMETERS: WalkState - Current walk state |
| 84 | * |
| 85 | * RETURN: Status |
| 86 | * |
| 87 | * DESCRIPTION: Execute opcode with two arguments, no target, and no return |
| 88 | * value. |
| 89 | * |
| 90 | * ALLOCATION: Deletes both operands |
| 91 | * |
| 92 | ******************************************************************************/ |
| 93 | |
| 94 | ACPI_STATUS |
| 95 | AcpiExOpcode_2A_0T_0R ( |
| 96 | ACPI_WALK_STATE *WalkState) |
| 97 | { |
| 98 | ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
| 99 | ACPI_NAMESPACE_NODE *Node; |
| 100 | UINT32 Value; |
| 101 | ACPI_STATUS Status = AE_OK; |
| 102 | |
| 103 | |
| 104 | ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_0R, |
| 105 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
| 106 | |
| 107 | |
| 108 | /* Examine the opcode */ |
| 109 | |
| 110 | switch (WalkState->Opcode) |
| 111 | { |
| 112 | case AML_NOTIFY_OP: /* Notify (NotifyObject, NotifyValue) */ |
| 113 | |
| 114 | /* The first operand is a namespace node */ |
| 115 | |
| 116 | Node = (ACPI_NAMESPACE_NODE *) Operand[0]; |
| 117 | |
| 118 | /* Second value is the notify value */ |
| 119 | |
| 120 | Value = (UINT32) Operand[1]->Integer.Value; |
| 121 | |
| 122 | /* Are notifies allowed on this object? */ |
| 123 | |
| 124 | if (!AcpiEvIsNotifyObject (Node)) |
| 125 | { |
| 126 | ACPI_ERROR ((AE_INFO, |
| 127 | "Unexpected notify object type [%s]" , |
| 128 | AcpiUtGetTypeName (Node->Type))); |
| 129 | |
| 130 | Status = AE_AML_OPERAND_TYPE; |
| 131 | break; |
| 132 | } |
| 133 | |
| 134 | /* |
| 135 | * Dispatch the notify to the appropriate handler |
| 136 | * NOTE: the request is queued for execution after this method |
| 137 | * completes. The notify handlers are NOT invoked synchronously |
| 138 | * from this thread -- because handlers may in turn run other |
| 139 | * control methods. |
| 140 | */ |
| 141 | Status = AcpiEvQueueNotifyRequest (Node, Value); |
| 142 | break; |
| 143 | |
| 144 | default: |
| 145 | |
| 146 | ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X" , |
| 147 | WalkState->Opcode)); |
| 148 | Status = AE_AML_BAD_OPCODE; |
| 149 | } |
| 150 | |
| 151 | return_ACPI_STATUS (Status); |
| 152 | } |
| 153 | |
| 154 | |
| 155 | /******************************************************************************* |
| 156 | * |
| 157 | * FUNCTION: AcpiExOpcode_2A_2T_1R |
| 158 | * |
| 159 | * PARAMETERS: WalkState - Current walk state |
| 160 | * |
| 161 | * RETURN: Status |
| 162 | * |
| 163 | * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets |
| 164 | * and one implicit return value. |
| 165 | * |
| 166 | ******************************************************************************/ |
| 167 | |
| 168 | ACPI_STATUS |
| 169 | AcpiExOpcode_2A_2T_1R ( |
| 170 | ACPI_WALK_STATE *WalkState) |
| 171 | { |
| 172 | ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
| 173 | ACPI_OPERAND_OBJECT *ReturnDesc1 = NULL; |
| 174 | ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL; |
| 175 | ACPI_STATUS Status; |
| 176 | |
| 177 | |
| 178 | ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_2T_1R, |
| 179 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
| 180 | |
| 181 | |
| 182 | /* Execute the opcode */ |
| 183 | |
| 184 | switch (WalkState->Opcode) |
| 185 | { |
| 186 | case AML_DIVIDE_OP: |
| 187 | |
| 188 | /* Divide (Dividend, Divisor, RemainderResult QuotientResult) */ |
| 189 | |
| 190 | ReturnDesc1 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); |
| 191 | if (!ReturnDesc1) |
| 192 | { |
| 193 | Status = AE_NO_MEMORY; |
| 194 | goto Cleanup; |
| 195 | } |
| 196 | |
| 197 | ReturnDesc2 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); |
| 198 | if (!ReturnDesc2) |
| 199 | { |
| 200 | Status = AE_NO_MEMORY; |
| 201 | goto Cleanup; |
| 202 | } |
| 203 | |
| 204 | /* Quotient to ReturnDesc1, remainder to ReturnDesc2 */ |
| 205 | |
| 206 | Status = AcpiUtDivide ( |
| 207 | Operand[0]->Integer.Value, |
| 208 | Operand[1]->Integer.Value, |
| 209 | &ReturnDesc1->Integer.Value, |
| 210 | &ReturnDesc2->Integer.Value); |
| 211 | if (ACPI_FAILURE (Status)) |
| 212 | { |
| 213 | goto Cleanup; |
| 214 | } |
| 215 | break; |
| 216 | |
| 217 | default: |
| 218 | |
| 219 | ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X" , |
| 220 | WalkState->Opcode)); |
| 221 | |
| 222 | Status = AE_AML_BAD_OPCODE; |
| 223 | goto Cleanup; |
| 224 | } |
| 225 | |
| 226 | /* Store the results to the target reference operands */ |
| 227 | |
| 228 | Status = AcpiExStore (ReturnDesc2, Operand[2], WalkState); |
| 229 | if (ACPI_FAILURE (Status)) |
| 230 | { |
| 231 | goto Cleanup; |
| 232 | } |
| 233 | |
| 234 | Status = AcpiExStore (ReturnDesc1, Operand[3], WalkState); |
| 235 | if (ACPI_FAILURE (Status)) |
| 236 | { |
| 237 | goto Cleanup; |
| 238 | } |
| 239 | |
| 240 | Cleanup: |
| 241 | /* |
| 242 | * Since the remainder is not returned indirectly, remove a reference to |
| 243 | * it. Only the quotient is returned indirectly. |
| 244 | */ |
| 245 | AcpiUtRemoveReference (ReturnDesc2); |
| 246 | |
| 247 | if (ACPI_FAILURE (Status)) |
| 248 | { |
| 249 | /* Delete the return object */ |
| 250 | |
| 251 | AcpiUtRemoveReference (ReturnDesc1); |
| 252 | } |
| 253 | |
| 254 | /* Save return object (the remainder) on success */ |
| 255 | |
| 256 | else |
| 257 | { |
| 258 | WalkState->ResultObj = ReturnDesc1; |
| 259 | } |
| 260 | |
| 261 | return_ACPI_STATUS (Status); |
| 262 | } |
| 263 | |
| 264 | |
| 265 | /******************************************************************************* |
| 266 | * |
| 267 | * FUNCTION: AcpiExOpcode_2A_1T_1R |
| 268 | * |
| 269 | * PARAMETERS: WalkState - Current walk state |
| 270 | * |
| 271 | * RETURN: Status |
| 272 | * |
| 273 | * DESCRIPTION: Execute opcode with two arguments, one target, and a return |
| 274 | * value. |
| 275 | * |
| 276 | ******************************************************************************/ |
| 277 | |
| 278 | ACPI_STATUS |
| 279 | AcpiExOpcode_2A_1T_1R ( |
| 280 | ACPI_WALK_STATE *WalkState) |
| 281 | { |
| 282 | ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
| 283 | ACPI_OPERAND_OBJECT *ReturnDesc = NULL; |
| 284 | UINT64 Index; |
| 285 | ACPI_STATUS Status = AE_OK; |
| 286 | ACPI_SIZE Length = 0; |
| 287 | |
| 288 | |
| 289 | ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_1T_1R, |
| 290 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
| 291 | |
| 292 | |
| 293 | /* Execute the opcode */ |
| 294 | |
| 295 | if (WalkState->OpInfo->Flags & AML_MATH) |
| 296 | { |
| 297 | /* All simple math opcodes (add, etc.) */ |
| 298 | |
| 299 | ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); |
| 300 | if (!ReturnDesc) |
| 301 | { |
| 302 | Status = AE_NO_MEMORY; |
| 303 | goto Cleanup; |
| 304 | } |
| 305 | |
| 306 | ReturnDesc->Integer.Value = AcpiExDoMathOp ( |
| 307 | WalkState->Opcode, |
| 308 | Operand[0]->Integer.Value, |
| 309 | Operand[1]->Integer.Value); |
| 310 | goto StoreResultToTarget; |
| 311 | } |
| 312 | |
| 313 | switch (WalkState->Opcode) |
| 314 | { |
| 315 | case AML_MOD_OP: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */ |
| 316 | |
| 317 | ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); |
| 318 | if (!ReturnDesc) |
| 319 | { |
| 320 | Status = AE_NO_MEMORY; |
| 321 | goto Cleanup; |
| 322 | } |
| 323 | |
| 324 | /* ReturnDesc will contain the remainder */ |
| 325 | |
| 326 | Status = AcpiUtDivide ( |
| 327 | Operand[0]->Integer.Value, |
| 328 | Operand[1]->Integer.Value, |
| 329 | NULL, |
| 330 | &ReturnDesc->Integer.Value); |
| 331 | break; |
| 332 | |
| 333 | case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */ |
| 334 | |
| 335 | Status = AcpiExDoConcatenate ( |
| 336 | Operand[0], Operand[1], &ReturnDesc, WalkState); |
| 337 | break; |
| 338 | |
| 339 | case AML_TO_STRING_OP: /* ToString (Buffer, Length, Result) (ACPI 2.0) */ |
| 340 | /* |
| 341 | * Input object is guaranteed to be a buffer at this point (it may have |
| 342 | * been converted.) Copy the raw buffer data to a new object of |
| 343 | * type String. |
| 344 | */ |
| 345 | |
| 346 | /* |
| 347 | * Get the length of the new string. It is the smallest of: |
| 348 | * 1) Length of the input buffer |
| 349 | * 2) Max length as specified in the ToString operator |
| 350 | * 3) Length of input buffer up to a zero byte (null terminator) |
| 351 | * |
| 352 | * NOTE: A length of zero is ok, and will create a zero-length, null |
| 353 | * terminated string. |
| 354 | */ |
| 355 | while ((Length < Operand[0]->Buffer.Length) && |
| 356 | (Length < Operand[1]->Integer.Value) && |
| 357 | (Operand[0]->Buffer.Pointer[Length])) |
| 358 | { |
| 359 | Length++; |
| 360 | } |
| 361 | |
| 362 | /* Allocate a new string object */ |
| 363 | |
| 364 | ReturnDesc = AcpiUtCreateStringObject (Length); |
| 365 | if (!ReturnDesc) |
| 366 | { |
| 367 | Status = AE_NO_MEMORY; |
| 368 | goto Cleanup; |
| 369 | } |
| 370 | |
| 371 | /* |
| 372 | * Copy the raw buffer data with no transform. |
| 373 | * (NULL terminated already) |
| 374 | */ |
| 375 | memcpy (ReturnDesc->String.Pointer, |
| 376 | Operand[0]->Buffer.Pointer, Length); |
| 377 | break; |
| 378 | |
| 379 | case AML_CONCAT_RES_OP: |
| 380 | |
| 381 | /* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */ |
| 382 | |
| 383 | Status = AcpiExConcatTemplate ( |
| 384 | Operand[0], Operand[1], &ReturnDesc, WalkState); |
| 385 | break; |
| 386 | |
| 387 | case AML_INDEX_OP: /* Index (Source Index Result) */ |
| 388 | |
| 389 | /* Create the internal return object */ |
| 390 | |
| 391 | ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE); |
| 392 | if (!ReturnDesc) |
| 393 | { |
| 394 | Status = AE_NO_MEMORY; |
| 395 | goto Cleanup; |
| 396 | } |
| 397 | |
| 398 | /* Initialize the Index reference object */ |
| 399 | |
| 400 | Index = Operand[1]->Integer.Value; |
| 401 | ReturnDesc->Reference.Value = (UINT32) Index; |
| 402 | ReturnDesc->Reference.Class = ACPI_REFCLASS_INDEX; |
| 403 | |
| 404 | /* |
| 405 | * At this point, the Source operand is a String, Buffer, or Package. |
| 406 | * Verify that the index is within range. |
| 407 | */ |
| 408 | switch ((Operand[0])->Common.Type) |
| 409 | { |
| 410 | case ACPI_TYPE_STRING: |
| 411 | |
| 412 | if (Index >= Operand[0]->String.Length) |
| 413 | { |
| 414 | Length = Operand[0]->String.Length; |
| 415 | Status = AE_AML_STRING_LIMIT; |
| 416 | } |
| 417 | |
| 418 | ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD; |
| 419 | ReturnDesc->Reference.IndexPointer = |
| 420 | &(Operand[0]->Buffer.Pointer [Index]); |
| 421 | break; |
| 422 | |
| 423 | case ACPI_TYPE_BUFFER: |
| 424 | |
| 425 | if (Index >= Operand[0]->Buffer.Length) |
| 426 | { |
| 427 | Length = Operand[0]->Buffer.Length; |
| 428 | Status = AE_AML_BUFFER_LIMIT; |
| 429 | } |
| 430 | |
| 431 | ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD; |
| 432 | ReturnDesc->Reference.IndexPointer = |
| 433 | &(Operand[0]->Buffer.Pointer [Index]); |
| 434 | break; |
| 435 | |
| 436 | case ACPI_TYPE_PACKAGE: |
| 437 | |
| 438 | if (Index >= Operand[0]->Package.Count) |
| 439 | { |
| 440 | Length = Operand[0]->Package.Count; |
| 441 | Status = AE_AML_PACKAGE_LIMIT; |
| 442 | } |
| 443 | |
| 444 | ReturnDesc->Reference.TargetType = ACPI_TYPE_PACKAGE; |
| 445 | ReturnDesc->Reference.Where = |
| 446 | &Operand[0]->Package.Elements [Index]; |
| 447 | break; |
| 448 | |
| 449 | default: |
| 450 | |
| 451 | Status = AE_AML_INTERNAL; |
| 452 | goto Cleanup; |
| 453 | } |
| 454 | |
| 455 | /* Failure means that the Index was beyond the end of the object */ |
| 456 | |
| 457 | if (ACPI_FAILURE (Status)) |
| 458 | { |
| 459 | ACPI_EXCEPTION ((AE_INFO, Status, |
| 460 | "Index (0x%X%8.8X) is beyond end of object (length 0x%X)" , |
| 461 | ACPI_FORMAT_UINT64 (Index), (UINT32) Length)); |
| 462 | goto Cleanup; |
| 463 | } |
| 464 | |
| 465 | /* |
| 466 | * Save the target object and add a reference to it for the life |
| 467 | * of the index |
| 468 | */ |
| 469 | ReturnDesc->Reference.Object = Operand[0]; |
| 470 | AcpiUtAddReference (Operand[0]); |
| 471 | |
| 472 | /* Store the reference to the Target */ |
| 473 | |
| 474 | Status = AcpiExStore (ReturnDesc, Operand[2], WalkState); |
| 475 | |
| 476 | /* Return the reference */ |
| 477 | |
| 478 | WalkState->ResultObj = ReturnDesc; |
| 479 | goto Cleanup; |
| 480 | |
| 481 | default: |
| 482 | |
| 483 | ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X" , |
| 484 | WalkState->Opcode)); |
| 485 | Status = AE_AML_BAD_OPCODE; |
| 486 | break; |
| 487 | } |
| 488 | |
| 489 | |
| 490 | StoreResultToTarget: |
| 491 | |
| 492 | if (ACPI_SUCCESS (Status)) |
| 493 | { |
| 494 | /* |
| 495 | * Store the result of the operation (which is now in ReturnDesc) into |
| 496 | * the Target descriptor. |
| 497 | */ |
| 498 | Status = AcpiExStore (ReturnDesc, Operand[2], WalkState); |
| 499 | if (ACPI_FAILURE (Status)) |
| 500 | { |
| 501 | goto Cleanup; |
| 502 | } |
| 503 | |
| 504 | if (!WalkState->ResultObj) |
| 505 | { |
| 506 | WalkState->ResultObj = ReturnDesc; |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | |
| 511 | Cleanup: |
| 512 | |
| 513 | /* Delete return object on error */ |
| 514 | |
| 515 | if (ACPI_FAILURE (Status)) |
| 516 | { |
| 517 | AcpiUtRemoveReference (ReturnDesc); |
| 518 | WalkState->ResultObj = NULL; |
| 519 | } |
| 520 | |
| 521 | return_ACPI_STATUS (Status); |
| 522 | } |
| 523 | |
| 524 | |
| 525 | /******************************************************************************* |
| 526 | * |
| 527 | * FUNCTION: AcpiExOpcode_2A_0T_1R |
| 528 | * |
| 529 | * PARAMETERS: WalkState - Current walk state |
| 530 | * |
| 531 | * RETURN: Status |
| 532 | * |
| 533 | * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value |
| 534 | * |
| 535 | ******************************************************************************/ |
| 536 | |
| 537 | ACPI_STATUS |
| 538 | AcpiExOpcode_2A_0T_1R ( |
| 539 | ACPI_WALK_STATE *WalkState) |
| 540 | { |
| 541 | ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; |
| 542 | ACPI_OPERAND_OBJECT *ReturnDesc = NULL; |
| 543 | ACPI_STATUS Status = AE_OK; |
| 544 | BOOLEAN LogicalResult = FALSE; |
| 545 | |
| 546 | |
| 547 | ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_1R, |
| 548 | AcpiPsGetOpcodeName (WalkState->Opcode)); |
| 549 | |
| 550 | |
| 551 | /* Create the internal return object */ |
| 552 | |
| 553 | ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); |
| 554 | if (!ReturnDesc) |
| 555 | { |
| 556 | Status = AE_NO_MEMORY; |
| 557 | goto Cleanup; |
| 558 | } |
| 559 | |
| 560 | /* Execute the Opcode */ |
| 561 | |
| 562 | if (WalkState->OpInfo->Flags & AML_LOGICAL_NUMERIC) |
| 563 | { |
| 564 | /* LogicalOp (Operand0, Operand1) */ |
| 565 | |
| 566 | Status = AcpiExDoLogicalNumericOp (WalkState->Opcode, |
| 567 | Operand[0]->Integer.Value, Operand[1]->Integer.Value, |
| 568 | &LogicalResult); |
| 569 | goto StoreLogicalResult; |
| 570 | } |
| 571 | else if (WalkState->OpInfo->Flags & AML_LOGICAL) |
| 572 | { |
| 573 | /* LogicalOp (Operand0, Operand1) */ |
| 574 | |
| 575 | Status = AcpiExDoLogicalOp (WalkState->Opcode, Operand[0], |
| 576 | Operand[1], &LogicalResult); |
| 577 | goto StoreLogicalResult; |
| 578 | } |
| 579 | |
| 580 | switch (WalkState->Opcode) |
| 581 | { |
| 582 | case AML_ACQUIRE_OP: /* Acquire (MutexObject, Timeout) */ |
| 583 | |
| 584 | Status = AcpiExAcquireMutex (Operand[1], Operand[0], WalkState); |
| 585 | if (Status == AE_TIME) |
| 586 | { |
| 587 | LogicalResult = TRUE; /* TRUE = Acquire timed out */ |
| 588 | Status = AE_OK; |
| 589 | } |
| 590 | break; |
| 591 | |
| 592 | |
| 593 | case AML_WAIT_OP: /* Wait (EventObject, Timeout) */ |
| 594 | |
| 595 | Status = AcpiExSystemWaitEvent (Operand[1], Operand[0]); |
| 596 | if (Status == AE_TIME) |
| 597 | { |
| 598 | LogicalResult = TRUE; /* TRUE, Wait timed out */ |
| 599 | Status = AE_OK; |
| 600 | } |
| 601 | break; |
| 602 | |
| 603 | default: |
| 604 | |
| 605 | ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X" , |
| 606 | WalkState->Opcode)); |
| 607 | |
| 608 | Status = AE_AML_BAD_OPCODE; |
| 609 | goto Cleanup; |
| 610 | } |
| 611 | |
| 612 | |
| 613 | StoreLogicalResult: |
| 614 | /* |
| 615 | * Set return value to according to LogicalResult. logical TRUE (all ones) |
| 616 | * Default is FALSE (zero) |
| 617 | */ |
| 618 | if (LogicalResult) |
| 619 | { |
| 620 | ReturnDesc->Integer.Value = ACPI_UINT64_MAX; |
| 621 | } |
| 622 | |
| 623 | Cleanup: |
| 624 | |
| 625 | /* Delete return object on error */ |
| 626 | |
| 627 | if (ACPI_FAILURE (Status)) |
| 628 | { |
| 629 | AcpiUtRemoveReference (ReturnDesc); |
| 630 | } |
| 631 | |
| 632 | /* Save return object on success */ |
| 633 | |
| 634 | else |
| 635 | { |
| 636 | WalkState->ResultObj = ReturnDesc; |
| 637 | } |
| 638 | |
| 639 | return_ACPI_STATUS (Status); |
| 640 | } |
| 641 | |