13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117#define __DSOBJECT_C__ 118 119#include "acpi.h" 120#include "acparser.h" 121#include "amlcode.h" 122#include "acdispat.h" 123#include "acnamesp.h" 124#include "acinterp.h" 125 126#define _COMPONENT ACPI_DISPATCHER 127 ACPI_MODULE_NAME ("dsobject") 128 129 130#ifndef ACPI_NO_METHOD_EXECUTION 131/***************************************************************************** 132 * 133 * FUNCTION: AcpiDsBuildInternalObject 134 * 135 * PARAMETERS: WalkState - Current walk state 136 * Op - Parser object to be translated 137 * ObjDescPtr - Where the ACPI internal object is returned 138 * 139 * RETURN: Status 140 * 141 * DESCRIPTION: Translate a parser Op object to the equivalent namespace object 142 * Simple objects are any objects other than a package object! 143 * 144 ****************************************************************************/ 145 146ACPI_STATUS 147AcpiDsBuildInternalObject ( 148 ACPI_WALK_STATE *WalkState, 149 ACPI_PARSE_OBJECT *Op, 150 ACPI_OPERAND_OBJECT **ObjDescPtr) 151{ 152 ACPI_OPERAND_OBJECT *ObjDesc; 153 ACPI_STATUS Status; 154 155 156 ACPI_FUNCTION_TRACE ("DsBuildInternalObject"); 157 158 159 *ObjDescPtr = NULL; 160 if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) 161 { 162 /* 163 * This is an named object reference. If this name was 164 * previously looked up in the namespace, it was stored in this op. 165 * Otherwise, go ahead and look it up now 166 */ 167 if (!Op->Common.Node) 168 { 169 Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String, 170 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, 171 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, 172 (ACPI_NAMESPACE_NODE **) &(Op->Common.Node)); 173 174 if (ACPI_FAILURE (Status)) 175 { 176 ACPI_REPORT_NSERROR (Op->Common.Value.String, Status); 177 return_ACPI_STATUS (Status); 178 } 179 } 180 } 181 182 /* Create and init the internal ACPI object */ 183 184 ObjDesc = AcpiUtCreateInternalObject ((AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType); 185 if (!ObjDesc) 186 { 187 return_ACPI_STATUS (AE_NO_MEMORY); 188 } 189 190 Status = AcpiDsInitObjectFromOp (WalkState, Op, Op->Common.AmlOpcode, &ObjDesc); 191 if (ACPI_FAILURE (Status)) 192 { 193 AcpiUtRemoveReference (ObjDesc); 194 return_ACPI_STATUS (Status); 195 } 196 197 *ObjDescPtr = ObjDesc; 198 return_ACPI_STATUS (AE_OK); 199} 200 201 202/***************************************************************************** 203 * 204 * FUNCTION: AcpiDsBuildInternalBufferObj 205 * 206 * PARAMETERS: WalkState - Current walk state 207 * Op - Parser object to be translated 208 * BufferLength - Length of the buffer 209 * ObjDescPtr - Where the ACPI internal object is returned 210 * 211 * RETURN: Status 212 * 213 * DESCRIPTION: Translate a parser Op package object to the equivalent 214 * namespace object 215 * 216 ****************************************************************************/ 217 218ACPI_STATUS 219AcpiDsBuildInternalBufferObj ( 220 ACPI_WALK_STATE *WalkState, 221 ACPI_PARSE_OBJECT *Op, 222 UINT32 BufferLength, 223 ACPI_OPERAND_OBJECT **ObjDescPtr) 224{ 225 ACPI_PARSE_OBJECT *Arg; 226 ACPI_OPERAND_OBJECT *ObjDesc; 227 ACPI_PARSE_OBJECT *ByteList; 228 UINT32 ByteListLength = 0; 229 230 231 ACPI_FUNCTION_TRACE ("DsBuildInternalBufferObj"); 232 233 234 ObjDesc = *ObjDescPtr; 235 if (ObjDesc) 236 { 237 /* 238 * We are evaluating a Named buffer object "Name (xxxx, Buffer)". 239 * The buffer object already exists (from the NS node) 240 */ 241 } 242 else 243 { 244 /* Create a new buffer object */ 245 246 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER); 247 *ObjDescPtr = ObjDesc; 248 if (!ObjDesc) 249 { 250 return_ACPI_STATUS (AE_NO_MEMORY); 251 } 252 } 253 254 /* 255 * Second arg is the buffer data (optional) ByteList can be either 256 * individual bytes or a string initializer. In either case, a 257 * ByteList appears in the AML. 258 */ 259 Arg = Op->Common.Value.Arg; /* skip first arg */ 260 261 ByteList = Arg->Named.Next; 262 if (ByteList) 263 { 264 if (ByteList->Common.AmlOpcode != AML_INT_BYTELIST_OP) 265 { 266 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 267 "Expecting bytelist, got AML opcode %X in op %p\n", 268 ByteList->Common.AmlOpcode, ByteList)); 269 270 AcpiUtRemoveReference (ObjDesc); 271 return (AE_TYPE); 272 } 273 274 ByteListLength = (UINT32) ByteList->Common.Value.Integer; 275 } 276 277 /* 278 * The buffer length (number of bytes) will be the larger of: 279 * 1) The specified buffer length and 280 * 2) The length of the initializer byte list 281 */ 282 ObjDesc->Buffer.Length = BufferLength; 283 if (ByteListLength > BufferLength) 284 { 285 ObjDesc->Buffer.Length = ByteListLength; 286 } 287 288 /* Allocate the buffer */ 289 290 if (ObjDesc->Buffer.Length == 0) 291 { 292 ObjDesc->Buffer.Pointer = NULL; 293 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 294 "Buffer defined with zero length in AML, creating\n")); 295 } 296 else 297 { 298 ObjDesc->Buffer.Pointer = ACPI_MEM_CALLOCATE ( 299 ObjDesc->Buffer.Length); 300 if (!ObjDesc->Buffer.Pointer) 301 { 302 AcpiUtDeleteObjectDesc (ObjDesc); 303 return_ACPI_STATUS (AE_NO_MEMORY); 304 } 305 306 /* Initialize buffer from the ByteList (if present) */ 307 308 if (ByteList) 309 { 310 ACPI_MEMCPY (ObjDesc->Buffer.Pointer, ByteList->Named.Data, 311 ByteListLength); 312 } 313 } 314 315 ObjDesc->Buffer.Flags |= AOPOBJ_DATA_VALID; 316 Op->Common.Node = (ACPI_NAMESPACE_NODE *) ObjDesc; 317 return_ACPI_STATUS (AE_OK); 318} 319 320 321/***************************************************************************** 322 * 323 * FUNCTION: AcpiDsBuildInternalPackageObj 324 * 325 * PARAMETERS: WalkState - Current walk state 326 * Op - Parser object to be translated 327 * PackageLength - Number of elements in the package 328 * ObjDescPtr - Where the ACPI internal object is returned 329 * 330 * RETURN: Status 331 * 332 * DESCRIPTION: Translate a parser Op package object to the equivalent 333 * namespace object 334 * 335 ****************************************************************************/ 336 337ACPI_STATUS 338AcpiDsBuildInternalPackageObj ( 339 ACPI_WALK_STATE *WalkState, 340 ACPI_PARSE_OBJECT *Op, 341 UINT32 PackageLength, 342 ACPI_OPERAND_OBJECT **ObjDescPtr) 343{ 344 ACPI_PARSE_OBJECT *Arg; 345 ACPI_PARSE_OBJECT *Parent; 346 ACPI_OPERAND_OBJECT *ObjDesc = NULL; 347 UINT32 PackageListLength; 348 ACPI_STATUS Status = AE_OK; 349 UINT32 i; 350 351 352 ACPI_FUNCTION_TRACE ("DsBuildInternalPackageObj"); 353 354 355 /* Find the parent of a possibly nested package */ 356 357 Parent = Op->Common.Parent; 358 while ((Parent->Common.AmlOpcode == AML_PACKAGE_OP) || 359 (Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP)) 360 { 361 Parent = Parent->Common.Parent; 362 } 363 364 ObjDesc = *ObjDescPtr; 365 if (ObjDesc) 366 { 367 /* 368 * We are evaluating a Named package object "Name (xxxx, Package)". 369 * Get the existing package object from the NS node 370 */ 371 } 372 else 373 { 374 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE); 375 *ObjDescPtr = ObjDesc; 376 if (!ObjDesc) 377 { 378 return_ACPI_STATUS (AE_NO_MEMORY); 379 } 380 381 ObjDesc->Package.Node = Parent->Common.Node; 382 } 383 384 ObjDesc->Package.Count = PackageLength; 385 386 /* Count the number of items in the package list */ 387 388 PackageListLength = 0; 389 Arg = Op->Common.Value.Arg; 390 Arg = Arg->Common.Next; 391 while (Arg) 392 { 393 PackageListLength++; 394 Arg = Arg->Common.Next; 395 } 396 397 /* 398 * The package length (number of elements) will be the greater 399 * of the specified length and the length of the initializer list 400 */ 401 if (PackageListLength > PackageLength) 402 { 403 ObjDesc->Package.Count = PackageListLength; 404 } 405 406 /* 407 * Allocate the pointer array (array of pointers to the 408 * individual objects). Add an extra pointer slot so 409 * that the list is always null terminated. 410 */ 411 ObjDesc->Package.Elements = ACPI_MEM_CALLOCATE ( 412 ((ACPI_SIZE) ObjDesc->Package.Count + 1) * sizeof (void *)); 413 414 if (!ObjDesc->Package.Elements) 415 { 416 AcpiUtDeleteObjectDesc (ObjDesc); 417 return_ACPI_STATUS (AE_NO_MEMORY); 418 } 419 420 /* 421 * Now init the elements of the package 422 */ 423 i = 0; 424 Arg = Op->Common.Value.Arg; 425 Arg = Arg->Common.Next; 426 while (Arg) 427 { 428 if (Arg->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) 429 { 430 /* Object (package or buffer) is already built */ 431 432 ObjDesc->Package.Elements[i] = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node); 433 } 434 else 435 { 436 Status = AcpiDsBuildInternalObject (WalkState, Arg, 437 &ObjDesc->Package.Elements[i]); 438 } 439 440 i++; 441 Arg = Arg->Common.Next; 442 } 443 444 ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID; 445 Op->Common.Node = (ACPI_NAMESPACE_NODE *) ObjDesc; 446 return_ACPI_STATUS (Status); 447} 448 449 450/***************************************************************************** 451 * 452 * FUNCTION: AcpiDsCreateNode 453 * 454 * PARAMETERS: WalkState - Current walk state 455 * Node - NS Node to be initialized 456 * Op - Parser object to be translated 457 * 458 * RETURN: Status 459 * 460 * DESCRIPTION: Create the object to be associated with a namespace node 461 * 462 ****************************************************************************/ 463 464ACPI_STATUS 465AcpiDsCreateNode ( 466 ACPI_WALK_STATE *WalkState, 467 ACPI_NAMESPACE_NODE *Node, 468 ACPI_PARSE_OBJECT *Op) 469{ 470 ACPI_STATUS Status; 471 ACPI_OPERAND_OBJECT *ObjDesc; 472 473 474 ACPI_FUNCTION_TRACE_PTR ("DsCreateNode", Op); 475 476 477 /* 478 * Because of the execution pass through the non-control-method 479 * parts of the table, we can arrive here twice. Only init 480 * the named object node the first time through 481 */ 482 if (AcpiNsGetAttachedObject (Node)) 483 { 484 return_ACPI_STATUS (AE_OK); 485 } 486 487 if (!Op->Common.Value.Arg) 488 { 489 /* No arguments, there is nothing to do */ 490 491 return_ACPI_STATUS (AE_OK); 492 } 493 494 /* Build an internal object for the argument(s) */ 495 496 Status = AcpiDsBuildInternalObject (WalkState, Op->Common.Value.Arg, &ObjDesc); 497 if (ACPI_FAILURE (Status)) 498 { 499 return_ACPI_STATUS (Status); 500 } 501 502 /* Re-type the object according to its argument */ 503 504 Node->Type = ACPI_GET_OBJECT_TYPE (ObjDesc); 505 506 /* Attach obj to node */ 507 508 Status = AcpiNsAttachObject (Node, ObjDesc, Node->Type); 509 510 /* Remove local reference to the object */ 511 512 AcpiUtRemoveReference (ObjDesc); 513 return_ACPI_STATUS (Status); 514} 515 516#endif /* ACPI_NO_METHOD_EXECUTION */ 517 518 519/***************************************************************************** 520 * 521 * FUNCTION: AcpiDsInitObjectFromOp 522 * 523 * PARAMETERS: WalkState - Current walk state 524 * Op - Parser op used to init the internal object 525 * Opcode - AML opcode associated with the object 526 * RetObjDesc - Namespace object to be initialized 527 * 528 * RETURN: Status 529 * 530 * DESCRIPTION: Initialize a namespace object from a parser Op and its 531 * associated arguments. The namespace object is a more compact 532 * representation of the Op and its arguments. 533 * 534 ****************************************************************************/ 535 536ACPI_STATUS 537AcpiDsInitObjectFromOp ( 538 ACPI_WALK_STATE *WalkState, 539 ACPI_PARSE_OBJECT *Op, 540 UINT16 Opcode, 541 ACPI_OPERAND_OBJECT **RetObjDesc) 542{ 543 const ACPI_OPCODE_INFO *OpInfo; 544 ACPI_OPERAND_OBJECT *ObjDesc; 545 ACPI_STATUS Status = AE_OK; 546 547 548 ACPI_FUNCTION_TRACE ("DsInitObjectFromOp"); 549 550 551 ObjDesc = *RetObjDesc; 552 OpInfo = AcpiPsGetOpcodeInfo (Opcode); 553 if (OpInfo->Class == AML_CLASS_UNKNOWN) 554 { 555 /* Unknown opcode */ 556 557 return_ACPI_STATUS (AE_TYPE); 558 } 559 560 /* Perform per-object initialization */ 561 562 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 563 { 564 case ACPI_TYPE_BUFFER: 565 566 /* 567 * Defer evaluation of Buffer TermArg operand 568 */ 569 ObjDesc->Buffer.Node = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0]; 570 ObjDesc->Buffer.AmlStart = Op->Named.Data; 571 ObjDesc->Buffer.AmlLength = Op->Named.Length; 572 break; 573 574 575 case ACPI_TYPE_PACKAGE: 576 577 /* 578 * Defer evaluation of Package TermArg operand 579 */ 580 ObjDesc->Package.Node = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0]; 581 ObjDesc->Package.AmlStart = Op->Named.Data; 582 ObjDesc->Package.AmlLength = Op->Named.Length; 583 break; 584 585 586 case ACPI_TYPE_INTEGER: 587 588 switch (OpInfo->Type) 589 { 590 case AML_TYPE_CONSTANT: 591 /* 592 * Resolve AML Constants here - AND ONLY HERE! 593 * All constants are integers. 594 * We mark the integer with a flag that indicates that it started life 595 * as a constant -- so that stores to constants will perform as expected (noop). 596 * (ZeroOp is used as a placeholder for optional target operands.) 597 */ 598 ObjDesc->Common.Flags = AOPOBJ_AML_CONSTANT; 599 600 switch (Opcode) 601 { 602 case AML_ZERO_OP: 603 604 ObjDesc->Integer.Value = 0; 605 break; 606 607 case AML_ONE_OP: 608 609 ObjDesc->Integer.Value = 1; 610 break; 611 612 case AML_ONES_OP: 613 614 ObjDesc->Integer.Value = ACPI_INTEGER_MAX; 615 616 /* Truncate value if we are executing from a 32-bit ACPI table */ 617 618#ifndef ACPI_NO_METHOD_EXECUTION 619 AcpiExTruncateFor32bitTable (ObjDesc); 620#endif 621 break; 622 623 case AML_REVISION_OP: 624 625 ObjDesc->Integer.Value = ACPI_CA_SUPPORT_LEVEL; 626 break; 627 628 default: 629 630 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown constant opcode %X\n", Opcode)); 631 Status = AE_AML_OPERAND_TYPE; 632 break; 633 } 634 break; 635 636 637 case AML_TYPE_LITERAL: 638 639 ObjDesc->Integer.Value = Op->Common.Value.Integer; 640 break; 641 642 643 default: 644 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Integer type %X\n", OpInfo->Type)); 645 Status = AE_AML_OPERAND_TYPE; 646 break; 647 } 648 break; 649 650 651 case ACPI_TYPE_STRING: 652 653 ObjDesc->String.Pointer = Op->Common.Value.String; 654 ObjDesc->String.Length = (UINT32) ACPI_STRLEN (Op->Common.Value.String); 655 656 /* 657 * The string is contained in the ACPI table, don't ever try 658 * to delete it 659 */ 660 ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER; 661 break; 662 663 664 case ACPI_TYPE_METHOD: 665 break; 666 667 668 case ACPI_TYPE_LOCAL_REFERENCE: 669 670 switch (OpInfo->Type) 671 { 672 case AML_TYPE_LOCAL_VARIABLE: 673 674 /* Split the opcode into a base opcode + offset */ 675 676 ObjDesc->Reference.Opcode = AML_LOCAL_OP; 677 ObjDesc->Reference.Offset = Opcode - AML_LOCAL_OP; 678 679#ifndef ACPI_NO_METHOD_EXECUTION 680 Status = AcpiDsMethodDataGetNode (AML_LOCAL_OP, ObjDesc->Reference.Offset, 681 WalkState, (ACPI_NAMESPACE_NODE **) &ObjDesc->Reference.Object); 682#endif 683 break; 684 685 686 case AML_TYPE_METHOD_ARGUMENT: 687 688 /* Split the opcode into a base opcode + offset */ 689 690 ObjDesc->Reference.Opcode = AML_ARG_OP; 691 ObjDesc->Reference.Offset = Opcode - AML_ARG_OP;
| 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117#define __DSOBJECT_C__ 118 119#include "acpi.h" 120#include "acparser.h" 121#include "amlcode.h" 122#include "acdispat.h" 123#include "acnamesp.h" 124#include "acinterp.h" 125 126#define _COMPONENT ACPI_DISPATCHER 127 ACPI_MODULE_NAME ("dsobject") 128 129 130#ifndef ACPI_NO_METHOD_EXECUTION 131/***************************************************************************** 132 * 133 * FUNCTION: AcpiDsBuildInternalObject 134 * 135 * PARAMETERS: WalkState - Current walk state 136 * Op - Parser object to be translated 137 * ObjDescPtr - Where the ACPI internal object is returned 138 * 139 * RETURN: Status 140 * 141 * DESCRIPTION: Translate a parser Op object to the equivalent namespace object 142 * Simple objects are any objects other than a package object! 143 * 144 ****************************************************************************/ 145 146ACPI_STATUS 147AcpiDsBuildInternalObject ( 148 ACPI_WALK_STATE *WalkState, 149 ACPI_PARSE_OBJECT *Op, 150 ACPI_OPERAND_OBJECT **ObjDescPtr) 151{ 152 ACPI_OPERAND_OBJECT *ObjDesc; 153 ACPI_STATUS Status; 154 155 156 ACPI_FUNCTION_TRACE ("DsBuildInternalObject"); 157 158 159 *ObjDescPtr = NULL; 160 if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) 161 { 162 /* 163 * This is an named object reference. If this name was 164 * previously looked up in the namespace, it was stored in this op. 165 * Otherwise, go ahead and look it up now 166 */ 167 if (!Op->Common.Node) 168 { 169 Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String, 170 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, 171 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, 172 (ACPI_NAMESPACE_NODE **) &(Op->Common.Node)); 173 174 if (ACPI_FAILURE (Status)) 175 { 176 ACPI_REPORT_NSERROR (Op->Common.Value.String, Status); 177 return_ACPI_STATUS (Status); 178 } 179 } 180 } 181 182 /* Create and init the internal ACPI object */ 183 184 ObjDesc = AcpiUtCreateInternalObject ((AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType); 185 if (!ObjDesc) 186 { 187 return_ACPI_STATUS (AE_NO_MEMORY); 188 } 189 190 Status = AcpiDsInitObjectFromOp (WalkState, Op, Op->Common.AmlOpcode, &ObjDesc); 191 if (ACPI_FAILURE (Status)) 192 { 193 AcpiUtRemoveReference (ObjDesc); 194 return_ACPI_STATUS (Status); 195 } 196 197 *ObjDescPtr = ObjDesc; 198 return_ACPI_STATUS (AE_OK); 199} 200 201 202/***************************************************************************** 203 * 204 * FUNCTION: AcpiDsBuildInternalBufferObj 205 * 206 * PARAMETERS: WalkState - Current walk state 207 * Op - Parser object to be translated 208 * BufferLength - Length of the buffer 209 * ObjDescPtr - Where the ACPI internal object is returned 210 * 211 * RETURN: Status 212 * 213 * DESCRIPTION: Translate a parser Op package object to the equivalent 214 * namespace object 215 * 216 ****************************************************************************/ 217 218ACPI_STATUS 219AcpiDsBuildInternalBufferObj ( 220 ACPI_WALK_STATE *WalkState, 221 ACPI_PARSE_OBJECT *Op, 222 UINT32 BufferLength, 223 ACPI_OPERAND_OBJECT **ObjDescPtr) 224{ 225 ACPI_PARSE_OBJECT *Arg; 226 ACPI_OPERAND_OBJECT *ObjDesc; 227 ACPI_PARSE_OBJECT *ByteList; 228 UINT32 ByteListLength = 0; 229 230 231 ACPI_FUNCTION_TRACE ("DsBuildInternalBufferObj"); 232 233 234 ObjDesc = *ObjDescPtr; 235 if (ObjDesc) 236 { 237 /* 238 * We are evaluating a Named buffer object "Name (xxxx, Buffer)". 239 * The buffer object already exists (from the NS node) 240 */ 241 } 242 else 243 { 244 /* Create a new buffer object */ 245 246 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER); 247 *ObjDescPtr = ObjDesc; 248 if (!ObjDesc) 249 { 250 return_ACPI_STATUS (AE_NO_MEMORY); 251 } 252 } 253 254 /* 255 * Second arg is the buffer data (optional) ByteList can be either 256 * individual bytes or a string initializer. In either case, a 257 * ByteList appears in the AML. 258 */ 259 Arg = Op->Common.Value.Arg; /* skip first arg */ 260 261 ByteList = Arg->Named.Next; 262 if (ByteList) 263 { 264 if (ByteList->Common.AmlOpcode != AML_INT_BYTELIST_OP) 265 { 266 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 267 "Expecting bytelist, got AML opcode %X in op %p\n", 268 ByteList->Common.AmlOpcode, ByteList)); 269 270 AcpiUtRemoveReference (ObjDesc); 271 return (AE_TYPE); 272 } 273 274 ByteListLength = (UINT32) ByteList->Common.Value.Integer; 275 } 276 277 /* 278 * The buffer length (number of bytes) will be the larger of: 279 * 1) The specified buffer length and 280 * 2) The length of the initializer byte list 281 */ 282 ObjDesc->Buffer.Length = BufferLength; 283 if (ByteListLength > BufferLength) 284 { 285 ObjDesc->Buffer.Length = ByteListLength; 286 } 287 288 /* Allocate the buffer */ 289 290 if (ObjDesc->Buffer.Length == 0) 291 { 292 ObjDesc->Buffer.Pointer = NULL; 293 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 294 "Buffer defined with zero length in AML, creating\n")); 295 } 296 else 297 { 298 ObjDesc->Buffer.Pointer = ACPI_MEM_CALLOCATE ( 299 ObjDesc->Buffer.Length); 300 if (!ObjDesc->Buffer.Pointer) 301 { 302 AcpiUtDeleteObjectDesc (ObjDesc); 303 return_ACPI_STATUS (AE_NO_MEMORY); 304 } 305 306 /* Initialize buffer from the ByteList (if present) */ 307 308 if (ByteList) 309 { 310 ACPI_MEMCPY (ObjDesc->Buffer.Pointer, ByteList->Named.Data, 311 ByteListLength); 312 } 313 } 314 315 ObjDesc->Buffer.Flags |= AOPOBJ_DATA_VALID; 316 Op->Common.Node = (ACPI_NAMESPACE_NODE *) ObjDesc; 317 return_ACPI_STATUS (AE_OK); 318} 319 320 321/***************************************************************************** 322 * 323 * FUNCTION: AcpiDsBuildInternalPackageObj 324 * 325 * PARAMETERS: WalkState - Current walk state 326 * Op - Parser object to be translated 327 * PackageLength - Number of elements in the package 328 * ObjDescPtr - Where the ACPI internal object is returned 329 * 330 * RETURN: Status 331 * 332 * DESCRIPTION: Translate a parser Op package object to the equivalent 333 * namespace object 334 * 335 ****************************************************************************/ 336 337ACPI_STATUS 338AcpiDsBuildInternalPackageObj ( 339 ACPI_WALK_STATE *WalkState, 340 ACPI_PARSE_OBJECT *Op, 341 UINT32 PackageLength, 342 ACPI_OPERAND_OBJECT **ObjDescPtr) 343{ 344 ACPI_PARSE_OBJECT *Arg; 345 ACPI_PARSE_OBJECT *Parent; 346 ACPI_OPERAND_OBJECT *ObjDesc = NULL; 347 UINT32 PackageListLength; 348 ACPI_STATUS Status = AE_OK; 349 UINT32 i; 350 351 352 ACPI_FUNCTION_TRACE ("DsBuildInternalPackageObj"); 353 354 355 /* Find the parent of a possibly nested package */ 356 357 Parent = Op->Common.Parent; 358 while ((Parent->Common.AmlOpcode == AML_PACKAGE_OP) || 359 (Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP)) 360 { 361 Parent = Parent->Common.Parent; 362 } 363 364 ObjDesc = *ObjDescPtr; 365 if (ObjDesc) 366 { 367 /* 368 * We are evaluating a Named package object "Name (xxxx, Package)". 369 * Get the existing package object from the NS node 370 */ 371 } 372 else 373 { 374 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE); 375 *ObjDescPtr = ObjDesc; 376 if (!ObjDesc) 377 { 378 return_ACPI_STATUS (AE_NO_MEMORY); 379 } 380 381 ObjDesc->Package.Node = Parent->Common.Node; 382 } 383 384 ObjDesc->Package.Count = PackageLength; 385 386 /* Count the number of items in the package list */ 387 388 PackageListLength = 0; 389 Arg = Op->Common.Value.Arg; 390 Arg = Arg->Common.Next; 391 while (Arg) 392 { 393 PackageListLength++; 394 Arg = Arg->Common.Next; 395 } 396 397 /* 398 * The package length (number of elements) will be the greater 399 * of the specified length and the length of the initializer list 400 */ 401 if (PackageListLength > PackageLength) 402 { 403 ObjDesc->Package.Count = PackageListLength; 404 } 405 406 /* 407 * Allocate the pointer array (array of pointers to the 408 * individual objects). Add an extra pointer slot so 409 * that the list is always null terminated. 410 */ 411 ObjDesc->Package.Elements = ACPI_MEM_CALLOCATE ( 412 ((ACPI_SIZE) ObjDesc->Package.Count + 1) * sizeof (void *)); 413 414 if (!ObjDesc->Package.Elements) 415 { 416 AcpiUtDeleteObjectDesc (ObjDesc); 417 return_ACPI_STATUS (AE_NO_MEMORY); 418 } 419 420 /* 421 * Now init the elements of the package 422 */ 423 i = 0; 424 Arg = Op->Common.Value.Arg; 425 Arg = Arg->Common.Next; 426 while (Arg) 427 { 428 if (Arg->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) 429 { 430 /* Object (package or buffer) is already built */ 431 432 ObjDesc->Package.Elements[i] = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node); 433 } 434 else 435 { 436 Status = AcpiDsBuildInternalObject (WalkState, Arg, 437 &ObjDesc->Package.Elements[i]); 438 } 439 440 i++; 441 Arg = Arg->Common.Next; 442 } 443 444 ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID; 445 Op->Common.Node = (ACPI_NAMESPACE_NODE *) ObjDesc; 446 return_ACPI_STATUS (Status); 447} 448 449 450/***************************************************************************** 451 * 452 * FUNCTION: AcpiDsCreateNode 453 * 454 * PARAMETERS: WalkState - Current walk state 455 * Node - NS Node to be initialized 456 * Op - Parser object to be translated 457 * 458 * RETURN: Status 459 * 460 * DESCRIPTION: Create the object to be associated with a namespace node 461 * 462 ****************************************************************************/ 463 464ACPI_STATUS 465AcpiDsCreateNode ( 466 ACPI_WALK_STATE *WalkState, 467 ACPI_NAMESPACE_NODE *Node, 468 ACPI_PARSE_OBJECT *Op) 469{ 470 ACPI_STATUS Status; 471 ACPI_OPERAND_OBJECT *ObjDesc; 472 473 474 ACPI_FUNCTION_TRACE_PTR ("DsCreateNode", Op); 475 476 477 /* 478 * Because of the execution pass through the non-control-method 479 * parts of the table, we can arrive here twice. Only init 480 * the named object node the first time through 481 */ 482 if (AcpiNsGetAttachedObject (Node)) 483 { 484 return_ACPI_STATUS (AE_OK); 485 } 486 487 if (!Op->Common.Value.Arg) 488 { 489 /* No arguments, there is nothing to do */ 490 491 return_ACPI_STATUS (AE_OK); 492 } 493 494 /* Build an internal object for the argument(s) */ 495 496 Status = AcpiDsBuildInternalObject (WalkState, Op->Common.Value.Arg, &ObjDesc); 497 if (ACPI_FAILURE (Status)) 498 { 499 return_ACPI_STATUS (Status); 500 } 501 502 /* Re-type the object according to its argument */ 503 504 Node->Type = ACPI_GET_OBJECT_TYPE (ObjDesc); 505 506 /* Attach obj to node */ 507 508 Status = AcpiNsAttachObject (Node, ObjDesc, Node->Type); 509 510 /* Remove local reference to the object */ 511 512 AcpiUtRemoveReference (ObjDesc); 513 return_ACPI_STATUS (Status); 514} 515 516#endif /* ACPI_NO_METHOD_EXECUTION */ 517 518 519/***************************************************************************** 520 * 521 * FUNCTION: AcpiDsInitObjectFromOp 522 * 523 * PARAMETERS: WalkState - Current walk state 524 * Op - Parser op used to init the internal object 525 * Opcode - AML opcode associated with the object 526 * RetObjDesc - Namespace object to be initialized 527 * 528 * RETURN: Status 529 * 530 * DESCRIPTION: Initialize a namespace object from a parser Op and its 531 * associated arguments. The namespace object is a more compact 532 * representation of the Op and its arguments. 533 * 534 ****************************************************************************/ 535 536ACPI_STATUS 537AcpiDsInitObjectFromOp ( 538 ACPI_WALK_STATE *WalkState, 539 ACPI_PARSE_OBJECT *Op, 540 UINT16 Opcode, 541 ACPI_OPERAND_OBJECT **RetObjDesc) 542{ 543 const ACPI_OPCODE_INFO *OpInfo; 544 ACPI_OPERAND_OBJECT *ObjDesc; 545 ACPI_STATUS Status = AE_OK; 546 547 548 ACPI_FUNCTION_TRACE ("DsInitObjectFromOp"); 549 550 551 ObjDesc = *RetObjDesc; 552 OpInfo = AcpiPsGetOpcodeInfo (Opcode); 553 if (OpInfo->Class == AML_CLASS_UNKNOWN) 554 { 555 /* Unknown opcode */ 556 557 return_ACPI_STATUS (AE_TYPE); 558 } 559 560 /* Perform per-object initialization */ 561 562 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 563 { 564 case ACPI_TYPE_BUFFER: 565 566 /* 567 * Defer evaluation of Buffer TermArg operand 568 */ 569 ObjDesc->Buffer.Node = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0]; 570 ObjDesc->Buffer.AmlStart = Op->Named.Data; 571 ObjDesc->Buffer.AmlLength = Op->Named.Length; 572 break; 573 574 575 case ACPI_TYPE_PACKAGE: 576 577 /* 578 * Defer evaluation of Package TermArg operand 579 */ 580 ObjDesc->Package.Node = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0]; 581 ObjDesc->Package.AmlStart = Op->Named.Data; 582 ObjDesc->Package.AmlLength = Op->Named.Length; 583 break; 584 585 586 case ACPI_TYPE_INTEGER: 587 588 switch (OpInfo->Type) 589 { 590 case AML_TYPE_CONSTANT: 591 /* 592 * Resolve AML Constants here - AND ONLY HERE! 593 * All constants are integers. 594 * We mark the integer with a flag that indicates that it started life 595 * as a constant -- so that stores to constants will perform as expected (noop). 596 * (ZeroOp is used as a placeholder for optional target operands.) 597 */ 598 ObjDesc->Common.Flags = AOPOBJ_AML_CONSTANT; 599 600 switch (Opcode) 601 { 602 case AML_ZERO_OP: 603 604 ObjDesc->Integer.Value = 0; 605 break; 606 607 case AML_ONE_OP: 608 609 ObjDesc->Integer.Value = 1; 610 break; 611 612 case AML_ONES_OP: 613 614 ObjDesc->Integer.Value = ACPI_INTEGER_MAX; 615 616 /* Truncate value if we are executing from a 32-bit ACPI table */ 617 618#ifndef ACPI_NO_METHOD_EXECUTION 619 AcpiExTruncateFor32bitTable (ObjDesc); 620#endif 621 break; 622 623 case AML_REVISION_OP: 624 625 ObjDesc->Integer.Value = ACPI_CA_SUPPORT_LEVEL; 626 break; 627 628 default: 629 630 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown constant opcode %X\n", Opcode)); 631 Status = AE_AML_OPERAND_TYPE; 632 break; 633 } 634 break; 635 636 637 case AML_TYPE_LITERAL: 638 639 ObjDesc->Integer.Value = Op->Common.Value.Integer; 640 break; 641 642 643 default: 644 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Integer type %X\n", OpInfo->Type)); 645 Status = AE_AML_OPERAND_TYPE; 646 break; 647 } 648 break; 649 650 651 case ACPI_TYPE_STRING: 652 653 ObjDesc->String.Pointer = Op->Common.Value.String; 654 ObjDesc->String.Length = (UINT32) ACPI_STRLEN (Op->Common.Value.String); 655 656 /* 657 * The string is contained in the ACPI table, don't ever try 658 * to delete it 659 */ 660 ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER; 661 break; 662 663 664 case ACPI_TYPE_METHOD: 665 break; 666 667 668 case ACPI_TYPE_LOCAL_REFERENCE: 669 670 switch (OpInfo->Type) 671 { 672 case AML_TYPE_LOCAL_VARIABLE: 673 674 /* Split the opcode into a base opcode + offset */ 675 676 ObjDesc->Reference.Opcode = AML_LOCAL_OP; 677 ObjDesc->Reference.Offset = Opcode - AML_LOCAL_OP; 678 679#ifndef ACPI_NO_METHOD_EXECUTION 680 Status = AcpiDsMethodDataGetNode (AML_LOCAL_OP, ObjDesc->Reference.Offset, 681 WalkState, (ACPI_NAMESPACE_NODE **) &ObjDesc->Reference.Object); 682#endif 683 break; 684 685 686 case AML_TYPE_METHOD_ARGUMENT: 687 688 /* Split the opcode into a base opcode + offset */ 689 690 ObjDesc->Reference.Opcode = AML_ARG_OP; 691 ObjDesc->Reference.Offset = Opcode - AML_ARG_OP;
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