1/****************************************************************************** 2 * 3 * Module Name: asltransform - Parse tree transforms 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 <contrib/dev/acpica/compiler/aslcompiler.h> 45#include "aslcompiler.y.h" 46 47#define _COMPONENT ACPI_COMPILER 48 ACPI_MODULE_NAME ("asltransform") 49 50/* Local prototypes */ 51 52static void 53TrTransformSubtree ( 54 ACPI_PARSE_OBJECT *Op); 55 56static char * 57TrAmlGetNextTempName ( 58 ACPI_PARSE_OBJECT *Op, 59 UINT8 *TempCount); 60 61static void 62TrAmlInitLineNumbers ( 63 ACPI_PARSE_OBJECT *Op, 64 ACPI_PARSE_OBJECT *Neighbor); 65 66static void 67TrAmlInitNode ( 68 ACPI_PARSE_OBJECT *Op, 69 UINT16 ParseOpcode); 70 71static void 72TrAmlSetSubtreeParent ( 73 ACPI_PARSE_OBJECT *Op, 74 ACPI_PARSE_OBJECT *Parent); 75 76static void 77TrAmlInsertPeer ( 78 ACPI_PARSE_OBJECT *Op, 79 ACPI_PARSE_OBJECT *NewPeer); 80 81static void 82TrDoDefinitionBlock ( 83 ACPI_PARSE_OBJECT *Op); 84 85static void 86TrDoSwitch ( 87 ACPI_PARSE_OBJECT *StartNode); 88 89 90/******************************************************************************* 91 * 92 * FUNCTION: TrAmlGetNextTempName 93 * 94 * PARAMETERS: Op - Current parse op 95 * TempCount - Current temporary counter. Was originally 96 * per-module; Currently per method, could be 97 * expanded to per-scope. 98 * 99 * RETURN: A pointer to name (allocated here). 100 * 101 * DESCRIPTION: Generate an ACPI name of the form _T_x. These names are 102 * reserved for use by the ASL compiler. (_T_0 through _T_Z) 103 * 104 ******************************************************************************/ 105 106static char * 107TrAmlGetNextTempName ( 108 ACPI_PARSE_OBJECT *Op, 109 UINT8 *TempCount) 110{ 111 char *TempName; 112 113 114 if (*TempCount >= (10 + 26)) /* 0-35 valid: 0-9 and A-Z for TempName[3] */ 115 { 116 /* Too many temps */ 117 118 AslError (ASL_ERROR, ASL_MSG_TOO_MANY_TEMPS, Op, NULL); 119 return (NULL); 120 } 121 122 TempName = UtLocalCalloc (5); 123 124 if (*TempCount < 10) /* 0-9 */ 125 { 126 TempName[3] = (char) (*TempCount + '0'); 127 } 128 else /* 10-35: A-Z */ 129 { 130 TempName[3] = (char) (*TempCount + ('A' - 10)); 131 } 132 133 (*TempCount)++; 134 135 /* First three characters are always "_T_" */ 136 137 TempName[0] = '_'; 138 TempName[1] = 'T'; 139 TempName[2] = '_'; 140 141 return (TempName); 142} 143 144 145/******************************************************************************* 146 * 147 * FUNCTION: TrAmlInitLineNumbers 148 * 149 * PARAMETERS: Op - Op to be initialized 150 * Neighbor - Op used for initialization values 151 * 152 * RETURN: None 153 * 154 * DESCRIPTION: Initialized the various line numbers for a parse node. 155 * 156 ******************************************************************************/ 157 158static void 159TrAmlInitLineNumbers ( 160 ACPI_PARSE_OBJECT *Op, 161 ACPI_PARSE_OBJECT *Neighbor) 162{ 163 164 Op->Asl.EndLine = Neighbor->Asl.EndLine; 165 Op->Asl.EndLogicalLine = Neighbor->Asl.EndLogicalLine; 166 Op->Asl.LineNumber = Neighbor->Asl.LineNumber; 167 Op->Asl.LogicalByteOffset = Neighbor->Asl.LogicalByteOffset; 168 Op->Asl.LogicalLineNumber = Neighbor->Asl.LogicalLineNumber; 169} 170 171 172/******************************************************************************* 173 * 174 * FUNCTION: TrAmlInitNode 175 * 176 * PARAMETERS: Op - Op to be initialized 177 * ParseOpcode - Opcode for this node 178 * 179 * RETURN: None 180 * 181 * DESCRIPTION: Initialize a node with the parse opcode and opcode name. 182 * 183 ******************************************************************************/ 184 185static void 186TrAmlInitNode ( 187 ACPI_PARSE_OBJECT *Op, 188 UINT16 ParseOpcode) 189{ 190 191 Op->Asl.ParseOpcode = ParseOpcode; 192 UtSetParseOpName (Op); 193} 194 195 196/******************************************************************************* 197 * 198 * FUNCTION: TrAmlSetSubtreeParent 199 * 200 * PARAMETERS: Op - First node in a list of peer nodes 201 * Parent - Parent of the subtree 202 * 203 * RETURN: None 204 * 205 * DESCRIPTION: Set the parent for all peer nodes in a subtree 206 * 207 ******************************************************************************/ 208 209static void 210TrAmlSetSubtreeParent ( 211 ACPI_PARSE_OBJECT *Op, 212 ACPI_PARSE_OBJECT *Parent) 213{ 214 ACPI_PARSE_OBJECT *Next; 215 216 217 Next = Op; 218 while (Next) 219 { 220 Next->Asl.Parent = Parent; 221 Next = Next->Asl.Next; 222 } 223} 224 225 226/******************************************************************************* 227 * 228 * FUNCTION: TrAmlInsertPeer 229 * 230 * PARAMETERS: Op - First node in a list of peer nodes 231 * NewPeer - Peer node to insert 232 * 233 * RETURN: None 234 * 235 * DESCRIPTION: Insert a new peer node into a list of peers. 236 * 237 ******************************************************************************/ 238 239static void 240TrAmlInsertPeer ( 241 ACPI_PARSE_OBJECT *Op, 242 ACPI_PARSE_OBJECT *NewPeer) 243{ 244 245 NewPeer->Asl.Next = Op->Asl.Next; 246 Op->Asl.Next = NewPeer; 247} 248 249 250/******************************************************************************* 251 * 252 * FUNCTION: TrAmlTransformWalkBegin 253 * 254 * PARAMETERS: ASL_WALK_CALLBACK 255 * 256 * RETURN: None 257 * 258 * DESCRIPTION: Parse tree walk to generate both the AML opcodes and the AML 259 * operands. 260 * 261 ******************************************************************************/ 262 263ACPI_STATUS 264TrAmlTransformWalkBegin ( 265 ACPI_PARSE_OBJECT *Op, 266 UINT32 Level, 267 void *Context) 268{ 269 270 TrTransformSubtree (Op); 271 return (AE_OK); 272} 273 274 275/******************************************************************************* 276 * 277 * FUNCTION: TrAmlTransformWalkEnd 278 * 279 * PARAMETERS: ASL_WALK_CALLBACK 280 * 281 * RETURN: None 282 * 283 * DESCRIPTION: Parse tree walk to generate both the AML opcodes and the AML 284 * operands. 285 * 286 ******************************************************************************/ 287 288ACPI_STATUS 289TrAmlTransformWalkEnd ( 290 ACPI_PARSE_OBJECT *Op, 291 UINT32 Level, 292 void *Context) 293{ 294 295 /* Save possible Externals list in the DefintionBlock Op */ 296 297 if (Op->Asl.ParseOpcode == PARSEOP_DEFINITION_BLOCK) 298 { 299 Op->Asl.Value.Arg = Gbl_ExternalsListHead; 300 Gbl_ExternalsListHead = NULL; 301 } 302 303 return (AE_OK); 304} 305 306 307/******************************************************************************* 308 * 309 * FUNCTION: TrTransformSubtree 310 * 311 * PARAMETERS: Op - The parent parse node 312 * 313 * RETURN: None 314 * 315 * DESCRIPTION: Prepare nodes to be output as AML data and operands. The more 316 * complex AML opcodes require processing of the child nodes 317 * (arguments/operands). 318 * 319 ******************************************************************************/ 320 321static void 322TrTransformSubtree ( 323 ACPI_PARSE_OBJECT *Op) 324{ 325 326 if (Op->Asl.AmlOpcode == AML_RAW_DATA_BYTE) 327 { 328 return; 329 } 330 331 switch (Op->Asl.ParseOpcode) 332 { 333 case PARSEOP_DEFINITION_BLOCK: 334 335 TrDoDefinitionBlock (Op); 336 break; 337 338 case PARSEOP_SWITCH: 339 340 TrDoSwitch (Op); 341 break; 342 343 case PARSEOP_METHOD: 344 /* 345 * TBD: Zero the tempname (_T_x) count. Probably shouldn't be a global, 346 * however 347 */ 348 Gbl_TempCount = 0; 349 break; 350 351 case PARSEOP_EXTERNAL: 352 353 if (Gbl_DoExternals == TRUE) 354 { 355 ExDoExternal (Op); 356 } 357 358 break; 359 360 default: 361 362 /* Nothing to do here for other opcodes */ 363 364 break; 365 } 366} 367 368 369/******************************************************************************* 370 * 371 * FUNCTION: TrDoDefinitionBlock 372 * 373 * PARAMETERS: Op - Parse node 374 * 375 * RETURN: None 376 * 377 * DESCRIPTION: Find the end of the definition block and set a global to this 378 * node. It is used by the compiler to insert compiler-generated 379 * names at the root level of the namespace. 380 * 381 ******************************************************************************/ 382 383static void 384TrDoDefinitionBlock ( 385 ACPI_PARSE_OBJECT *Op) 386{ 387 ACPI_PARSE_OBJECT *Next; 388 UINT32 i; 389 390 391 /* Reset external list when starting a definition block */ 392 393 Gbl_ExternalsListHead = NULL; 394 395 Next = Op->Asl.Child; 396 for (i = 0; i < 5; i++) 397 { 398 Next = Next->Asl.Next; 399 if (i == 0) 400 { 401 /* 402 * This is the table signature. Only the DSDT can be assumed 403 * to be at the root of the namespace; Therefore, namepath 404 * optimization can only be performed on the DSDT. 405 */ 406 if (!ACPI_COMPARE_NAME (Next->Asl.Value.String, ACPI_SIG_DSDT)) 407 { 408 Gbl_ReferenceOptimizationFlag = FALSE; 409 } 410 } 411 } 412 413 Gbl_FirstLevelInsertionNode = Next; 414} 415 416 417/******************************************************************************* 418 * 419 * FUNCTION: TrDoSwitch 420 * 421 * PARAMETERS: StartNode - Parse node for SWITCH 422 * 423 * RETURN: None 424 * 425 * DESCRIPTION: Translate ASL SWITCH statement to if/else pairs. There is 426 * no actual AML opcode for SWITCH -- it must be simulated. 427 * 428 ******************************************************************************/ 429 430static void 431TrDoSwitch ( 432 ACPI_PARSE_OBJECT *StartNode) 433{ 434 ACPI_PARSE_OBJECT *Next; 435 ACPI_PARSE_OBJECT *CaseOp = NULL; 436 ACPI_PARSE_OBJECT *CaseBlock = NULL; 437 ACPI_PARSE_OBJECT *DefaultOp = NULL; 438 ACPI_PARSE_OBJECT *CurrentParentNode; 439 ACPI_PARSE_OBJECT *Conditional = NULL; 440 ACPI_PARSE_OBJECT *Predicate; 441 ACPI_PARSE_OBJECT *Peer; 442 ACPI_PARSE_OBJECT *NewOp; 443 ACPI_PARSE_OBJECT *NewOp2; 444 ACPI_PARSE_OBJECT *MethodOp; 445 ACPI_PARSE_OBJECT *StoreOp; 446 ACPI_PARSE_OBJECT *BreakOp; 447 ACPI_PARSE_OBJECT *BufferOp; 448 char *PredicateValueName; 449 UINT16 Index; 450 UINT32 Btype; 451 452 453 /* Start node is the Switch() node */ 454 455 CurrentParentNode = StartNode; 456 457 /* Create a new temp name of the form _T_x */ 458 459 PredicateValueName = TrAmlGetNextTempName (StartNode, &Gbl_TempCount); 460 if (!PredicateValueName) 461 { 462 return; 463 } 464 465 /* First child is the Switch() predicate */ 466 467 Next = StartNode->Asl.Child; 468 469 /* 470 * Examine the return type of the Switch Value - 471 * must be Integer/Buffer/String 472 */ 473 Index = (UINT16) (Next->Asl.ParseOpcode - ASL_PARSE_OPCODE_BASE); 474 Btype = AslKeywordMapping[Index].AcpiBtype; 475 if ((Btype != ACPI_BTYPE_INTEGER) && 476 (Btype != ACPI_BTYPE_STRING) && 477 (Btype != ACPI_BTYPE_BUFFER)) 478 { 479 AslError (ASL_WARNING, ASL_MSG_SWITCH_TYPE, Next, NULL); 480 Btype = ACPI_BTYPE_INTEGER; 481 } 482 483 /* CASE statements start at next child */ 484 485 Peer = Next->Asl.Next; 486 while (Peer) 487 { 488 Next = Peer; 489 Peer = Next->Asl.Next; 490 491 if (Next->Asl.ParseOpcode == PARSEOP_CASE) 492 { 493 if (CaseOp) 494 { 495 /* Add an ELSE to complete the previous CASE */ 496 497 NewOp = TrCreateLeafNode (PARSEOP_ELSE); 498 NewOp->Asl.Parent = Conditional->Asl.Parent; 499 TrAmlInitLineNumbers (NewOp, NewOp->Asl.Parent); 500 501 /* Link ELSE node as a peer to the previous IF */ 502 503 TrAmlInsertPeer (Conditional, NewOp); 504 CurrentParentNode = NewOp; 505 } 506 507 CaseOp = Next; 508 Conditional = CaseOp; 509 CaseBlock = CaseOp->Asl.Child->Asl.Next; 510 Conditional->Asl.Child->Asl.Next = NULL; 511 Predicate = CaseOp->Asl.Child; 512 513 if ((Predicate->Asl.ParseOpcode == PARSEOP_PACKAGE) || 514 (Predicate->Asl.ParseOpcode == PARSEOP_VAR_PACKAGE)) 515 { 516 /* 517 * Convert the package declaration to this form: 518 * 519 * If (LNotEqual (Match (Package(<size>){<data>}, 520 * MEQ, _T_x, MTR, Zero, Zero), Ones)) 521 */ 522 NewOp2 = TrCreateLeafNode (PARSEOP_MATCHTYPE_MEQ); 523 Predicate->Asl.Next = NewOp2; 524 TrAmlInitLineNumbers (NewOp2, Conditional); 525 526 NewOp = NewOp2; 527 NewOp2 = TrCreateValuedLeafNode (PARSEOP_NAMESTRING, 528 (UINT64) ACPI_TO_INTEGER (PredicateValueName)); 529 NewOp->Asl.Next = NewOp2; 530 TrAmlInitLineNumbers (NewOp2, Predicate); 531 532 NewOp = NewOp2; 533 NewOp2 = TrCreateLeafNode (PARSEOP_MATCHTYPE_MTR); 534 NewOp->Asl.Next = NewOp2; 535 TrAmlInitLineNumbers (NewOp2, Predicate); 536 537 NewOp = NewOp2; 538 NewOp2 = TrCreateLeafNode (PARSEOP_ZERO); 539 NewOp->Asl.Next = NewOp2; 540 TrAmlInitLineNumbers (NewOp2, Predicate); 541 542 NewOp = NewOp2; 543 NewOp2 = TrCreateLeafNode (PARSEOP_ZERO); 544 NewOp->Asl.Next = NewOp2; 545 TrAmlInitLineNumbers (NewOp2, Predicate); 546 547 NewOp2 = TrCreateLeafNode (PARSEOP_MATCH); 548 NewOp2->Asl.Child = Predicate; /* PARSEOP_PACKAGE */ 549 TrAmlInitLineNumbers (NewOp2, Conditional); 550 TrAmlSetSubtreeParent (Predicate, NewOp2); 551 552 NewOp = NewOp2; 553 NewOp2 = TrCreateLeafNode (PARSEOP_ONES); 554 NewOp->Asl.Next = NewOp2; 555 TrAmlInitLineNumbers (NewOp2, Conditional); 556 557 NewOp2 = TrCreateLeafNode (PARSEOP_LEQUAL); 558 NewOp2->Asl.Child = NewOp; 559 NewOp->Asl.Parent = NewOp2; 560 TrAmlInitLineNumbers (NewOp2, Conditional); 561 TrAmlSetSubtreeParent (NewOp, NewOp2); 562 563 NewOp = NewOp2; 564 NewOp2 = TrCreateLeafNode (PARSEOP_LNOT); 565 NewOp2->Asl.Child = NewOp; 566 NewOp2->Asl.Parent = Conditional; 567 NewOp->Asl.Parent = NewOp2; 568 TrAmlInitLineNumbers (NewOp2, Conditional); 569 570 Conditional->Asl.Child = NewOp2; 571 NewOp2->Asl.Next = CaseBlock; 572 } 573 else 574 { 575 /* 576 * Integer and Buffer case. 577 * 578 * Change CaseOp() to: If (LEqual (SwitchValue, CaseValue)) {...} 579 * Note: SwitchValue is first to allow the CaseValue to be implicitly 580 * converted to the type of SwitchValue if necessary. 581 * 582 * CaseOp->Child is the case value 583 * CaseOp->Child->Peer is the beginning of the case block 584 */ 585 NewOp = TrCreateValuedLeafNode (PARSEOP_NAMESTRING, 586 (UINT64) ACPI_TO_INTEGER (PredicateValueName)); 587 NewOp->Asl.Next = Predicate; 588 TrAmlInitLineNumbers (NewOp, Predicate); 589 590 NewOp2 = TrCreateLeafNode (PARSEOP_LEQUAL); 591 NewOp2->Asl.Parent = Conditional; 592 NewOp2->Asl.Child = NewOp; 593 TrAmlInitLineNumbers (NewOp2, Conditional); 594 595 TrAmlSetSubtreeParent (NewOp, NewOp2); 596 597 Predicate = NewOp2; 598 Predicate->Asl.Next = CaseBlock; 599 600 TrAmlSetSubtreeParent (Predicate, Conditional); 601 Conditional->Asl.Child = Predicate; 602 } 603 604 /* Reinitialize the CASE node to an IF node */ 605 606 TrAmlInitNode (Conditional, PARSEOP_IF); 607 608 /* 609 * The first CASE(IF) is not nested under an ELSE. 610 * All other CASEs are children of a parent ELSE. 611 */ 612 if (CurrentParentNode == StartNode) 613 { 614 Conditional->Asl.Next = NULL; 615 } 616 else 617 { 618 /* 619 * The IF is a child of previous IF/ELSE. It 620 * is therefore without peer. 621 */ 622 CurrentParentNode->Asl.Child = Conditional; 623 Conditional->Asl.Parent = CurrentParentNode; 624 Conditional->Asl.Next = NULL; 625 } 626 } 627 else if (Next->Asl.ParseOpcode == PARSEOP_DEFAULT) 628 { 629 if (DefaultOp) 630 { 631 /* 632 * More than one Default 633 * (Parser does not catch this, must check here) 634 */ 635 AslError (ASL_ERROR, ASL_MSG_MULTIPLE_DEFAULT, Next, NULL); 636 } 637 else 638 { 639 /* Save the DEFAULT node for later, after CASEs */ 640 641 DefaultOp = Next; 642 } 643 } 644 else 645 { 646 /* Unknown peer opcode */ 647 648 AcpiOsPrintf ("Unknown parse opcode for switch statement: %s (%u)\n", 649 Next->Asl.ParseOpName, Next->Asl.ParseOpcode); 650 } 651 } 652 653 /* Add the default case at the end of the if/else construct */ 654 655 if (DefaultOp) 656 { 657 /* If no CASE statements, this is an error - see below */ 658 659 if (CaseOp) 660 { 661 /* Convert the DEFAULT node to an ELSE */ 662 663 TrAmlInitNode (DefaultOp, PARSEOP_ELSE); 664 DefaultOp->Asl.Parent = Conditional->Asl.Parent; 665 666 /* Link ELSE node as a peer to the previous IF */ 667 668 TrAmlInsertPeer (Conditional, DefaultOp); 669 } 670 } 671 672 if (!CaseOp) 673 { 674 AslError (ASL_ERROR, ASL_MSG_NO_CASES, StartNode, NULL); 675 } 676 677 678 /* 679 * Create a Name(_T_x, ...) statement. This statement must appear at the 680 * method level, in case a loop surrounds the switch statement and could 681 * cause the name to be created twice (error). 682 */ 683 684 /* Create the Name node */ 685 686 Predicate = StartNode->Asl.Child; 687 NewOp = TrCreateLeafNode (PARSEOP_NAME); 688 TrAmlInitLineNumbers (NewOp, StartNode); 689 690 /* Find the parent method */ 691 692 Next = StartNode; 693 while ((Next->Asl.ParseOpcode != PARSEOP_METHOD) && 694 (Next->Asl.ParseOpcode != PARSEOP_DEFINITION_BLOCK)) 695 { 696 Next = Next->Asl.Parent; 697 } 698 MethodOp = Next; 699 700 NewOp->Asl.CompileFlags |= NODE_COMPILER_EMITTED; 701 NewOp->Asl.Parent = Next; 702 703 /* Insert name after the method name and arguments */ 704 705 Next = Next->Asl.Child; /* Name */ 706 Next = Next->Asl.Next; /* NumArgs */ 707 Next = Next->Asl.Next; /* SerializeRule */ 708 709 /* 710 * If method is not Serialized, we must make is so, because of the way 711 * that Switch() must be implemented -- we cannot allow multiple threads 712 * to execute this method concurrently since we need to create local 713 * temporary name(s). 714 */ 715 if (Next->Asl.ParseOpcode != PARSEOP_SERIALIZERULE_SERIAL) 716 { 717 AslError (ASL_REMARK, ASL_MSG_SERIALIZED, MethodOp, 718 "Due to use of Switch operator"); 719 Next->Asl.ParseOpcode = PARSEOP_SERIALIZERULE_SERIAL; 720 } 721 722 Next = Next->Asl.Next; /* SyncLevel */ 723 Next = Next->Asl.Next; /* ReturnType */ 724 Next = Next->Asl.Next; /* ParameterTypes */ 725 726 TrAmlInsertPeer (Next, NewOp); 727 TrAmlInitLineNumbers (NewOp, Next); 728 729 /* Create the NameSeg child for the Name node */ 730 731 NewOp2 = TrCreateValuedLeafNode (PARSEOP_NAMESEG, 732 (UINT64) ACPI_TO_INTEGER (PredicateValueName)); 733 TrAmlInitLineNumbers (NewOp2, NewOp); 734 NewOp2->Asl.CompileFlags |= NODE_IS_NAME_DECLARATION; 735 NewOp->Asl.Child = NewOp2; 736 737 /* Create the initial value for the Name. Btype was already validated above */ 738 739 switch (Btype) 740 { 741 case ACPI_BTYPE_INTEGER: 742 743 NewOp2->Asl.Next = TrCreateValuedLeafNode (PARSEOP_ZERO, 744 (UINT64) 0); 745 TrAmlInitLineNumbers (NewOp2->Asl.Next, NewOp); 746 break; 747 748 case ACPI_BTYPE_STRING: 749 750 NewOp2->Asl.Next = TrCreateValuedLeafNode (PARSEOP_STRING_LITERAL, 751 (UINT64) ACPI_TO_INTEGER ("")); 752 TrAmlInitLineNumbers (NewOp2->Asl.Next, NewOp); 753 break; 754 755 case ACPI_BTYPE_BUFFER: 756 757 (void) TrLinkPeerNode (NewOp2, TrCreateValuedLeafNode (PARSEOP_BUFFER, 758 (UINT64) 0)); 759 Next = NewOp2->Asl.Next; 760 TrAmlInitLineNumbers (Next, NewOp2); 761 (void) TrLinkChildren (Next, 1, TrCreateValuedLeafNode (PARSEOP_ZERO, 762 (UINT64) 1)); 763 TrAmlInitLineNumbers (Next->Asl.Child, Next); 764 765 BufferOp = TrCreateValuedLeafNode (PARSEOP_DEFAULT_ARG, (UINT64) 0); 766 TrAmlInitLineNumbers (BufferOp, Next->Asl.Child); 767 (void) TrLinkPeerNode (Next->Asl.Child, BufferOp); 768 769 TrAmlSetSubtreeParent (Next->Asl.Child, Next); 770 break; 771 772 default: 773 774 break; 775 } 776 777 TrAmlSetSubtreeParent (NewOp2, NewOp); 778 779 /* 780 * Transform the Switch() into a While(One)-Break node. 781 * And create a Store() node which will be used to save the 782 * Switch() value. The store is of the form: Store (Value, _T_x) 783 * where _T_x is the temp variable. 784 */ 785 TrAmlInitNode (StartNode, PARSEOP_WHILE); 786 NewOp = TrCreateLeafNode (PARSEOP_ONE); 787 TrAmlInitLineNumbers (NewOp, StartNode); 788 NewOp->Asl.Next = Predicate->Asl.Next; 789 NewOp->Asl.Parent = StartNode; 790 StartNode->Asl.Child = NewOp; 791 792 /* Create a Store() node */ 793 794 StoreOp = TrCreateLeafNode (PARSEOP_STORE); 795 TrAmlInitLineNumbers (StoreOp, NewOp); 796 StoreOp->Asl.Parent = StartNode; 797 TrAmlInsertPeer (NewOp, StoreOp); 798 799 /* Complete the Store subtree */ 800 801 StoreOp->Asl.Child = Predicate; 802 Predicate->Asl.Parent = StoreOp; 803 804 NewOp = TrCreateValuedLeafNode (PARSEOP_NAMESEG, 805 (UINT64) ACPI_TO_INTEGER (PredicateValueName)); 806 TrAmlInitLineNumbers (NewOp, StoreOp); 807 NewOp->Asl.Parent = StoreOp; 808 Predicate->Asl.Next = NewOp; 809 810 /* Create a Break() node and insert it into the end of While() */ 811 812 Conditional = StartNode->Asl.Child; 813 while (Conditional->Asl.Next) 814 { 815 Conditional = Conditional->Asl.Next; 816 } 817 818 BreakOp = TrCreateLeafNode (PARSEOP_BREAK); 819 TrAmlInitLineNumbers (BreakOp, NewOp); 820 BreakOp->Asl.Parent = StartNode; 821 TrAmlInsertPeer (Conditional, BreakOp); 822} 823