1 /****************************************************************************** 2 * 3 * Module Name: dsobject - Dispatcher object management routines 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2021, 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/amlcode.h> 156 #include <contrib/dev/acpica/include/acdispat.h> 157 #include <contrib/dev/acpica/include/acnamesp.h> 158 #include <contrib/dev/acpica/include/acinterp.h> 159 160 #define _COMPONENT ACPI_DISPATCHER 161 ACPI_MODULE_NAME ("dsobject") 162 163 164 /******************************************************************************* 165 * 166 * FUNCTION: AcpiDsBuildInternalObject 167 * 168 * PARAMETERS: WalkState - Current walk state 169 * Op - Parser object to be translated 170 * ObjDescPtr - Where the ACPI internal object is returned 171 * 172 * RETURN: Status 173 * 174 * DESCRIPTION: Translate a parser Op object to the equivalent namespace object 175 * Simple objects are any objects other than a package object! 176 * 177 ******************************************************************************/ 178 179 ACPI_STATUS 180 AcpiDsBuildInternalObject ( 181 ACPI_WALK_STATE *WalkState, 182 ACPI_PARSE_OBJECT *Op, 183 ACPI_OPERAND_OBJECT **ObjDescPtr) 184 { 185 ACPI_OPERAND_OBJECT *ObjDesc; 186 ACPI_STATUS Status; 187 188 189 ACPI_FUNCTION_TRACE (DsBuildInternalObject); 190 191 192 *ObjDescPtr = NULL; 193 if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) 194 { 195 /* 196 * This is a named object reference. If this name was 197 * previously looked up in the namespace, it was stored in 198 * this op. Otherwise, go ahead and look it up now 199 */ 200 if (!Op->Common.Node) 201 { 202 /* Check if we are resolving a named reference within a package */ 203 204 if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) || 205 (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP)) 206 { 207 /* 208 * We won't resolve package elements here, we will do this 209 * after all ACPI tables are loaded into the namespace. This 210 * behavior supports both forward references to named objects 211 * and external references to objects in other tables. 212 */ 213 goto CreateNewObject; 214 } 215 else 216 { 217 Status = AcpiNsLookup (WalkState->ScopeInfo, 218 Op->Common.Value.String, 219 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, 220 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, 221 ACPI_CAST_INDIRECT_PTR ( 222 ACPI_NAMESPACE_NODE, &(Op->Common.Node))); 223 if (ACPI_FAILURE (Status)) 224 { 225 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, 226 Op->Common.Value.String, Status); 227 return_ACPI_STATUS (Status); 228 } 229 } 230 } 231 } 232 233 CreateNewObject: 234 235 /* Create and init a new internal ACPI object */ 236 237 ObjDesc = AcpiUtCreateInternalObject ( 238 (AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType); 239 if (!ObjDesc) 240 { 241 return_ACPI_STATUS (AE_NO_MEMORY); 242 } 243 244 Status = AcpiDsInitObjectFromOp ( 245 WalkState, Op, Op->Common.AmlOpcode, &ObjDesc); 246 if (ACPI_FAILURE (Status)) 247 { 248 AcpiUtRemoveReference (ObjDesc); 249 return_ACPI_STATUS (Status); 250 } 251 252 /* 253 * Handling for unresolved package reference elements. 254 * These are elements that are namepaths. 255 */ 256 if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) || 257 (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP)) 258 { 259 ObjDesc->Reference.Resolved = TRUE; 260 261 if ((Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) && 262 !ObjDesc->Reference.Node) 263 { 264 /* 265 * Name was unresolved above. 266 * Get the prefix node for later lookup 267 */ 268 ObjDesc->Reference.Node = WalkState->ScopeInfo->Scope.Node; 269 ObjDesc->Reference.Aml = Op->Common.Aml; 270 ObjDesc->Reference.Resolved = FALSE; 271 } 272 } 273 274 *ObjDescPtr = ObjDesc; 275 return_ACPI_STATUS (Status); 276 } 277 278 279 /******************************************************************************* 280 * 281 * FUNCTION: AcpiDsBuildInternalBufferObj 282 * 283 * PARAMETERS: WalkState - Current walk state 284 * Op - Parser object to be translated 285 * BufferLength - Length of the buffer 286 * ObjDescPtr - Where the ACPI internal object is returned 287 * 288 * RETURN: Status 289 * 290 * DESCRIPTION: Translate a parser Op package object to the equivalent 291 * namespace object 292 * 293 ******************************************************************************/ 294 295 ACPI_STATUS 296 AcpiDsBuildInternalBufferObj ( 297 ACPI_WALK_STATE *WalkState, 298 ACPI_PARSE_OBJECT *Op, 299 UINT32 BufferLength, 300 ACPI_OPERAND_OBJECT **ObjDescPtr) 301 { 302 ACPI_PARSE_OBJECT *Arg; 303 ACPI_OPERAND_OBJECT *ObjDesc; 304 ACPI_PARSE_OBJECT *ByteList; 305 UINT32 ByteListLength = 0; 306 307 308 ACPI_FUNCTION_TRACE (DsBuildInternalBufferObj); 309 310 311 /* 312 * If we are evaluating a Named buffer object "Name (xxxx, Buffer)". 313 * The buffer object already exists (from the NS node), otherwise it must 314 * be created. 315 */ 316 ObjDesc = *ObjDescPtr; 317 if (!ObjDesc) 318 { 319 /* Create a new buffer object */ 320 321 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER); 322 *ObjDescPtr = ObjDesc; 323 if (!ObjDesc) 324 { 325 return_ACPI_STATUS (AE_NO_MEMORY); 326 } 327 } 328 329 /* 330 * Second arg is the buffer data (optional) ByteList can be either 331 * individual bytes or a string initializer. In either case, a 332 * ByteList appears in the AML. 333 */ 334 Arg = Op->Common.Value.Arg; /* skip first arg */ 335 336 ByteList = Arg->Named.Next; 337 if (ByteList) 338 { 339 if (ByteList->Common.AmlOpcode != AML_INT_BYTELIST_OP) 340 { 341 ACPI_ERROR ((AE_INFO, 342 "Expecting bytelist, found AML opcode 0x%X in op %p", 343 ByteList->Common.AmlOpcode, ByteList)); 344 345 AcpiUtRemoveReference (ObjDesc); 346 return (AE_TYPE); 347 } 348 349 ByteListLength = (UINT32) ByteList->Common.Value.Integer; 350 } 351 352 /* 353 * The buffer length (number of bytes) will be the larger of: 354 * 1) The specified buffer length and 355 * 2) The length of the initializer byte list 356 */ 357 ObjDesc->Buffer.Length = BufferLength; 358 if (ByteListLength > BufferLength) 359 { 360 ObjDesc->Buffer.Length = ByteListLength; 361 } 362 363 /* Allocate the buffer */ 364 365 if (ObjDesc->Buffer.Length == 0) 366 { 367 ObjDesc->Buffer.Pointer = NULL; 368 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 369 "Buffer defined with zero length in AML, creating\n")); 370 } 371 else 372 { 373 ObjDesc->Buffer.Pointer = 374 ACPI_ALLOCATE_ZEROED (ObjDesc->Buffer.Length); 375 if (!ObjDesc->Buffer.Pointer) 376 { 377 AcpiUtDeleteObjectDesc (ObjDesc); 378 return_ACPI_STATUS (AE_NO_MEMORY); 379 } 380 381 /* Initialize buffer from the ByteList (if present) */ 382 383 if (ByteList) 384 { 385 memcpy (ObjDesc->Buffer.Pointer, ByteList->Named.Data, 386 ByteListLength); 387 } 388 } 389 390 ObjDesc->Buffer.Flags |= AOPOBJ_DATA_VALID; 391 Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc); 392 return_ACPI_STATUS (AE_OK); 393 } 394 395 /******************************************************************************* 396 * 397 * FUNCTION: AcpiDsCreateNode 398 * 399 * PARAMETERS: WalkState - Current walk state 400 * Node - NS Node to be initialized 401 * Op - Parser object to be translated 402 * 403 * RETURN: Status 404 * 405 * DESCRIPTION: Create the object to be associated with a namespace node 406 * 407 ******************************************************************************/ 408 409 ACPI_STATUS 410 AcpiDsCreateNode ( 411 ACPI_WALK_STATE *WalkState, 412 ACPI_NAMESPACE_NODE *Node, 413 ACPI_PARSE_OBJECT *Op) 414 { 415 ACPI_STATUS Status; 416 ACPI_OPERAND_OBJECT *ObjDesc; 417 418 419 ACPI_FUNCTION_TRACE_PTR (DsCreateNode, Op); 420 421 422 /* 423 * Because of the execution pass through the non-control-method 424 * parts of the table, we can arrive here twice. Only init 425 * the named object node the first time through 426 */ 427 if (AcpiNsGetAttachedObject (Node)) 428 { 429 return_ACPI_STATUS (AE_OK); 430 } 431 432 if (!Op->Common.Value.Arg) 433 { 434 /* No arguments, there is nothing to do */ 435 436 return_ACPI_STATUS (AE_OK); 437 } 438 439 /* Build an internal object for the argument(s) */ 440 441 Status = AcpiDsBuildInternalObject ( 442 WalkState, Op->Common.Value.Arg, &ObjDesc); 443 if (ACPI_FAILURE (Status)) 444 { 445 return_ACPI_STATUS (Status); 446 } 447 448 /* Re-type the object according to its argument */ 449 450 Node->Type = ObjDesc->Common.Type; 451 452 /* Attach obj to node */ 453 454 Status = AcpiNsAttachObject (Node, ObjDesc, Node->Type); 455 456 /* Remove local reference to the object */ 457 458 AcpiUtRemoveReference (ObjDesc); 459 return_ACPI_STATUS (Status); 460 } 461 462 463 /******************************************************************************* 464 * 465 * FUNCTION: AcpiDsInitObjectFromOp 466 * 467 * PARAMETERS: WalkState - Current walk state 468 * Op - Parser op used to init the internal object 469 * Opcode - AML opcode associated with the object 470 * RetObjDesc - Namespace object to be initialized 471 * 472 * RETURN: Status 473 * 474 * DESCRIPTION: Initialize a namespace object from a parser Op and its 475 * associated arguments. The namespace object is a more compact 476 * representation of the Op and its arguments. 477 * 478 ******************************************************************************/ 479 480 ACPI_STATUS 481 AcpiDsInitObjectFromOp ( 482 ACPI_WALK_STATE *WalkState, 483 ACPI_PARSE_OBJECT *Op, 484 UINT16 Opcode, 485 ACPI_OPERAND_OBJECT **RetObjDesc) 486 { 487 const ACPI_OPCODE_INFO *OpInfo; 488 ACPI_OPERAND_OBJECT *ObjDesc; 489 ACPI_STATUS Status = AE_OK; 490 491 492 ACPI_FUNCTION_TRACE (DsInitObjectFromOp); 493 494 495 ObjDesc = *RetObjDesc; 496 OpInfo = AcpiPsGetOpcodeInfo (Opcode); 497 if (OpInfo->Class == AML_CLASS_UNKNOWN) 498 { 499 /* Unknown opcode */ 500 501 return_ACPI_STATUS (AE_TYPE); 502 } 503 504 /* Perform per-object initialization */ 505 506 switch (ObjDesc->Common.Type) 507 { 508 case ACPI_TYPE_BUFFER: 509 /* 510 * Defer evaluation of Buffer TermArg operand 511 */ 512 ObjDesc->Buffer.Node = ACPI_CAST_PTR ( 513 ACPI_NAMESPACE_NODE, WalkState->Operands[0]); 514 ObjDesc->Buffer.AmlStart = Op->Named.Data; 515 ObjDesc->Buffer.AmlLength = Op->Named.Length; 516 break; 517 518 case ACPI_TYPE_PACKAGE: 519 /* 520 * Defer evaluation of Package TermArg operand and all 521 * package elements. (01/2017): We defer the element 522 * resolution to allow forward references from the package 523 * in order to provide compatibility with other ACPI 524 * implementations. 525 */ 526 ObjDesc->Package.Node = ACPI_CAST_PTR ( 527 ACPI_NAMESPACE_NODE, WalkState->Operands[0]); 528 529 if (!Op->Named.Data) 530 { 531 return_ACPI_STATUS (AE_OK); 532 } 533 534 ObjDesc->Package.AmlStart = Op->Named.Data; 535 ObjDesc->Package.AmlLength = Op->Named.Length; 536 break; 537 538 case ACPI_TYPE_INTEGER: 539 540 switch (OpInfo->Type) 541 { 542 case AML_TYPE_CONSTANT: 543 /* 544 * Resolve AML Constants here - AND ONLY HERE! 545 * All constants are integers. 546 * We mark the integer with a flag that indicates that it started 547 * life as a constant -- so that stores to constants will perform 548 * as expected (noop). ZeroOp is used as a placeholder for optional 549 * target operands. 550 */ 551 ObjDesc->Common.Flags = AOPOBJ_AML_CONSTANT; 552 553 switch (Opcode) 554 { 555 case AML_ZERO_OP: 556 557 ObjDesc->Integer.Value = 0; 558 break; 559 560 case AML_ONE_OP: 561 562 ObjDesc->Integer.Value = 1; 563 break; 564 565 case AML_ONES_OP: 566 567 ObjDesc->Integer.Value = ACPI_UINT64_MAX; 568 569 /* Truncate value if we are executing from a 32-bit ACPI table */ 570 571 (void) AcpiExTruncateFor32bitTable (ObjDesc); 572 break; 573 574 case AML_REVISION_OP: 575 576 ObjDesc->Integer.Value = ACPI_CA_VERSION; 577 break; 578 579 default: 580 581 ACPI_ERROR ((AE_INFO, 582 "Unknown constant opcode 0x%X", Opcode)); 583 Status = AE_AML_OPERAND_TYPE; 584 break; 585 } 586 break; 587 588 case AML_TYPE_LITERAL: 589 590 ObjDesc->Integer.Value = Op->Common.Value.Integer; 591 592 if (AcpiExTruncateFor32bitTable (ObjDesc)) 593 { 594 /* Warn if we found a 64-bit constant in a 32-bit table */ 595 596 ACPI_WARNING ((AE_INFO, 597 "Truncated 64-bit constant found in 32-bit table: %8.8X%8.8X => %8.8X", 598 ACPI_FORMAT_UINT64 (Op->Common.Value.Integer), 599 (UINT32) ObjDesc->Integer.Value)); 600 } 601 break; 602 603 default: 604 605 ACPI_ERROR ((AE_INFO, "Unknown Integer type 0x%X", 606 OpInfo->Type)); 607 Status = AE_AML_OPERAND_TYPE; 608 break; 609 } 610 break; 611 612 case ACPI_TYPE_STRING: 613 614 ObjDesc->String.Pointer = Op->Common.Value.String; 615 ObjDesc->String.Length = (UINT32) strlen (Op->Common.Value.String); 616 617 /* 618 * The string is contained in the ACPI table, don't ever try 619 * to delete it 620 */ 621 ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER; 622 break; 623 624 case ACPI_TYPE_METHOD: 625 break; 626 627 case ACPI_TYPE_LOCAL_REFERENCE: 628 629 switch (OpInfo->Type) 630 { 631 case AML_TYPE_LOCAL_VARIABLE: 632 633 /* Local ID (0-7) is (AML opcode - base AML_FIRST_LOCAL_OP) */ 634 635 ObjDesc->Reference.Value = ((UINT32) Opcode) - AML_FIRST_LOCAL_OP; 636 ObjDesc->Reference.Class = ACPI_REFCLASS_LOCAL; 637 638 Status = AcpiDsMethodDataGetNode (ACPI_REFCLASS_LOCAL, 639 ObjDesc->Reference.Value, WalkState, 640 ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE, 641 &ObjDesc->Reference.Object)); 642 break; 643 644 case AML_TYPE_METHOD_ARGUMENT: 645 646 /* Arg ID (0-6) is (AML opcode - base AML_FIRST_ARG_OP) */ 647 648 ObjDesc->Reference.Value = ((UINT32) Opcode) - AML_FIRST_ARG_OP; 649 ObjDesc->Reference.Class = ACPI_REFCLASS_ARG; 650 651 Status = AcpiDsMethodDataGetNode (ACPI_REFCLASS_ARG, 652 ObjDesc->Reference.Value, WalkState, 653 ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE, 654 &ObjDesc->Reference.Object)); 655 break; 656 657 default: /* Object name or Debug object */ 658 659 switch (Op->Common.AmlOpcode) 660 { 661 case AML_INT_NAMEPATH_OP: 662 663 /* Node was saved in Op */ 664 665 ObjDesc->Reference.Node = Op->Common.Node; 666 ObjDesc->Reference.Class = ACPI_REFCLASS_NAME; 667 if (Op->Common.Node) 668 { 669 ObjDesc->Reference.Object = Op->Common.Node->Object; 670 } 671 break; 672 673 case AML_DEBUG_OP: 674 675 ObjDesc->Reference.Class = ACPI_REFCLASS_DEBUG; 676 break; 677 678 default: 679 680 ACPI_ERROR ((AE_INFO, 681 "Unimplemented reference type for AML opcode: 0x%4.4X", Opcode)); 682 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 683 } 684 break; 685 } 686 break; 687 688 default: 689 690 ACPI_ERROR ((AE_INFO, "Unimplemented data type: 0x%X", 691 ObjDesc->Common.Type)); 692 693 Status = AE_AML_OPERAND_TYPE; 694 break; 695 } 696 697 return_ACPI_STATUS (Status); 698 } 699