1 2 /****************************************************************************** 3 * 4 * Module Name: aslopcode - AML opcode generation 5 * $Revision: 1.71 $ 6 * 7 *****************************************************************************/ 8 9 /****************************************************************************** 10 * 11 * 1. Copyright Notice 12 * 13 * Some or all of this work - Copyright (c) 1999 - 2005, Intel Corp. 14 * All rights reserved. 15 * 16 * 2. License 17 * 18 * 2.1. This is your license from Intel Corp. under its intellectual property 19 * rights. You may have additional license terms from the party that provided 20 * you this software, covering your right to use that party's intellectual 21 * property rights. 22 * 23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 24 * copy of the source code appearing in this file ("Covered Code") an 25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 26 * base code distributed originally by Intel ("Original Intel Code") to copy, 27 * make derivatives, distribute, use and display any portion of the Covered 28 * Code in any form, with the right to sublicense such rights; and 29 * 30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 31 * license (with the right to sublicense), under only those claims of Intel 32 * patents that are infringed by the Original Intel Code, to make, use, sell, 33 * offer to sell, and import the Covered Code and derivative works thereof 34 * solely to the minimum extent necessary to exercise the above copyright 35 * license, and in no event shall the patent license extend to any additions 36 * to or modifications of the Original Intel Code. No other license or right 37 * is granted directly or by implication, estoppel or otherwise; 38 * 39 * The above copyright and patent license is granted only if the following 40 * conditions are met: 41 * 42 * 3. Conditions 43 * 44 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 45 * Redistribution of source code of any substantial portion of the Covered 46 * Code or modification with rights to further distribute source must include 47 * the above Copyright Notice, the above License, this list of Conditions, 48 * and the following Disclaimer and Export Compliance provision. In addition, 49 * Licensee must cause all Covered Code to which Licensee contributes to 50 * contain a file documenting the changes Licensee made to create that Covered 51 * Code and the date of any change. Licensee must include in that file the 52 * documentation of any changes made by any predecessor Licensee. Licensee 53 * must include a prominent statement that the modification is derived, 54 * directly or indirectly, from Original Intel Code. 55 * 56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 57 * Redistribution of source code of any substantial portion of the Covered 58 * Code or modification without rights to further distribute source must 59 * include the following Disclaimer and Export Compliance provision in the 60 * documentation and/or other materials provided with distribution. In 61 * addition, Licensee may not authorize further sublicense of source of any 62 * portion of the Covered Code, and must include terms to the effect that the 63 * license from Licensee to its licensee is limited to the intellectual 64 * property embodied in the software Licensee provides to its licensee, and 65 * not to intellectual property embodied in modifications its licensee may 66 * make. 67 * 68 * 3.3. Redistribution of Executable. Redistribution in executable form of any 69 * substantial portion of the Covered Code or modification must reproduce the 70 * above Copyright Notice, and the following Disclaimer and Export Compliance 71 * provision in the documentation and/or other materials provided with the 72 * distribution. 73 * 74 * 3.4. Intel retains all right, title, and interest in and to the Original 75 * Intel Code. 76 * 77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 78 * Intel shall be used in advertising or otherwise to promote the sale, use or 79 * other dealings in products derived from or relating to the Covered Code 80 * without prior written authorization from Intel. 81 * 82 * 4. Disclaimer and Export Compliance 83 * 84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 90 * PARTICULAR PURPOSE. 91 * 92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 99 * LIMITED REMEDY. 100 * 101 * 4.3. Licensee shall not export, either directly or indirectly, any of this 102 * software or system incorporating such software without first obtaining any 103 * required license or other approval from the U. S. Department of Commerce or 104 * any other agency or department of the United States Government. In the 105 * event Licensee exports any such software from the United States or 106 * re-exports any such software from a foreign destination, Licensee shall 107 * ensure that the distribution and export/re-export of the software is in 108 * compliance with all laws, regulations, orders, or other restrictions of the 109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 110 * any of its subsidiaries will export/re-export any technical data, process, 111 * software, or service, directly or indirectly, to any country for which the 112 * United States government or any agency thereof requires an export license, 113 * other governmental approval, or letter of assurance, without first obtaining 114 * such license, approval or letter. 115 * 116 *****************************************************************************/ 117 118 119 #include <contrib/dev/acpica/compiler/aslcompiler.h> 120 #include "aslcompiler.y.h" 121 #include <contrib/dev/acpica/amlcode.h> 122 123 #define _COMPONENT ACPI_COMPILER 124 ACPI_MODULE_NAME ("aslopcodes") 125 126 127 /* UUID support */ 128 129 static UINT8 OpcMapToUUID[16] = 130 { 131 6,4,2,0,11,9,16,14,19,21,24,26,28,30,32,34 132 }; 133 134 /* Local prototypes */ 135 136 static void 137 OpcDoAccessAs ( 138 ACPI_PARSE_OBJECT *Op); 139 140 static void 141 OpcDoUnicode ( 142 ACPI_PARSE_OBJECT *Op); 143 144 static void 145 OpcDoEisaId ( 146 ACPI_PARSE_OBJECT *Op); 147 148 static void 149 OpcDoUuId ( 150 ACPI_PARSE_OBJECT *Op); 151 152 153 /******************************************************************************* 154 * 155 * FUNCTION: OpcAmlOpcodeUpdateWalk 156 * 157 * PARAMETERS: ASL_WALK_CALLBACK 158 * 159 * RETURN: Status 160 * 161 * DESCRIPTION: Opcode update walk, ascending callback 162 * 163 ******************************************************************************/ 164 165 ACPI_STATUS 166 OpcAmlOpcodeUpdateWalk ( 167 ACPI_PARSE_OBJECT *Op, 168 UINT32 Level, 169 void *Context) 170 { 171 172 /* 173 * Handle the Package() case where the actual opcode cannot be determined 174 * until the PackageLength operand has been folded and minimized. 175 * (PackageOp versus VarPackageOp) 176 * 177 * This is (as of ACPI 3.0) the only case where the AML opcode can change 178 * based upon the value of a parameter. 179 * 180 * The parser always inserts a VarPackage opcode, which can possibly be 181 * optimized to a Package opcode. 182 */ 183 if (Op->Asl.ParseOpcode == PARSEOP_VAR_PACKAGE) 184 { 185 OpnDoPackage (Op); 186 } 187 188 return (AE_OK); 189 } 190 191 192 /******************************************************************************* 193 * 194 * FUNCTION: OpcAmlOpcodeWalk 195 * 196 * PARAMETERS: ASL_WALK_CALLBACK 197 * 198 * RETURN: Status 199 * 200 * DESCRIPTION: Parse tree walk to generate both the AML opcodes and the AML 201 * operands. 202 * 203 ******************************************************************************/ 204 205 ACPI_STATUS 206 OpcAmlOpcodeWalk ( 207 ACPI_PARSE_OBJECT *Op, 208 UINT32 Level, 209 void *Context) 210 { 211 212 TotalParseNodes++; 213 214 OpcGenerateAmlOpcode (Op); 215 OpnGenerateAmlOperands (Op); 216 217 return (AE_OK); 218 } 219 220 221 /******************************************************************************* 222 * 223 * FUNCTION: OpcGetIntegerWidth 224 * 225 * PARAMETERS: Op - DEFINITION BLOCK op 226 * 227 * RETURN: none 228 * 229 * DESCRIPTION: Extract integer width from the table revision 230 * 231 ******************************************************************************/ 232 233 void 234 OpcGetIntegerWidth ( 235 ACPI_PARSE_OBJECT *Op) 236 { 237 ACPI_PARSE_OBJECT *Child; 238 239 240 if (!Op) 241 { 242 return; 243 } 244 245 if (Gbl_RevisionOverride) 246 { 247 AcpiUtSetIntegerWidth (Gbl_RevisionOverride); 248 } 249 else 250 { 251 Child = Op->Asl.Child; 252 Child = Child->Asl.Next; 253 Child = Child->Asl.Next; 254 255 /* Use the revision to set the integer width */ 256 257 AcpiUtSetIntegerWidth ((UINT8) Child->Asl.Value.Integer); 258 } 259 } 260 261 262 /******************************************************************************* 263 * 264 * FUNCTION: OpcSetOptimalIntegerSize 265 * 266 * PARAMETERS: Op - A parse tree node 267 * 268 * RETURN: Integer width, in bytes. Also sets the node AML opcode to the 269 * optimal integer AML prefix opcode. 270 * 271 * DESCRIPTION: Determine the optimal AML encoding of an integer. All leading 272 * zeros can be truncated to squeeze the integer into the 273 * minimal number of AML bytes. 274 * 275 ******************************************************************************/ 276 277 UINT32 278 OpcSetOptimalIntegerSize ( 279 ACPI_PARSE_OBJECT *Op) 280 { 281 282 #if 0 283 /* 284 * TBD: - we don't want to optimize integers in the block header, but the 285 * code below does not work correctly. 286 */ 287 if (Op->Asl.Parent && 288 Op->Asl.Parent->Asl.Parent && 289 (Op->Asl.Parent->Asl.Parent->Asl.ParseOpcode == PARSEOP_DEFINITIONBLOCK)) 290 { 291 return 0; 292 } 293 #endif 294 295 /* 296 * Check for the special AML integers first - Zero, One, Ones. 297 * These are single-byte opcodes that are the smallest possible 298 * representation of an integer. 299 * 300 * This optimization is optional. 301 */ 302 if (Gbl_IntegerOptimizationFlag) 303 { 304 switch (Op->Asl.Value.Integer) 305 { 306 case 0: 307 308 Op->Asl.AmlOpcode = AML_ZERO_OP; 309 AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION, 310 Op, "Zero"); 311 return 1; 312 313 case 1: 314 315 Op->Asl.AmlOpcode = AML_ONE_OP; 316 AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION, 317 Op, "One"); 318 return 1; 319 320 case ACPI_UINT32_MAX: 321 322 /* Check for table integer width (32 or 64) */ 323 324 if (AcpiGbl_IntegerByteWidth == 4) 325 { 326 Op->Asl.AmlOpcode = AML_ONES_OP; 327 AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION, 328 Op, "Ones"); 329 return 1; 330 } 331 break; 332 333 case ACPI_INTEGER_MAX: 334 335 /* Check for table integer width (32 or 64) */ 336 337 if (AcpiGbl_IntegerByteWidth == 8) 338 { 339 Op->Asl.AmlOpcode = AML_ONES_OP; 340 AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION, 341 Op, "Ones"); 342 return 1; 343 } 344 break; 345 346 default: 347 break; 348 } 349 } 350 351 /* Find the best fit using the various AML integer prefixes */ 352 353 if (Op->Asl.Value.Integer <= ACPI_UINT8_MAX) 354 { 355 Op->Asl.AmlOpcode = AML_BYTE_OP; 356 return 1; 357 } 358 if (Op->Asl.Value.Integer <= ACPI_UINT16_MAX) 359 { 360 Op->Asl.AmlOpcode = AML_WORD_OP; 361 return 2; 362 } 363 if (Op->Asl.Value.Integer <= ACPI_UINT32_MAX) 364 { 365 Op->Asl.AmlOpcode = AML_DWORD_OP; 366 return 4; 367 } 368 else 369 { 370 if (AcpiGbl_IntegerByteWidth == 4) 371 { 372 AslError (ASL_WARNING, ASL_MSG_INTEGER_LENGTH, 373 Op, NULL); 374 375 if (!Gbl_IgnoreErrors) 376 { 377 /* Truncate the integer to 32-bit */ 378 Op->Asl.AmlOpcode = AML_DWORD_OP; 379 return 4; 380 } 381 } 382 383 Op->Asl.AmlOpcode = AML_QWORD_OP; 384 return 8; 385 } 386 } 387 388 389 /******************************************************************************* 390 * 391 * FUNCTION: OpcDoAccessAs 392 * 393 * PARAMETERS: Op - Parse node 394 * 395 * RETURN: None 396 * 397 * DESCRIPTION: Implement the ACCESS_AS ASL keyword. 398 * 399 ******************************************************************************/ 400 401 static void 402 OpcDoAccessAs ( 403 ACPI_PARSE_OBJECT *Op) 404 { 405 ACPI_PARSE_OBJECT *Next; 406 407 408 Op->Asl.AmlOpcodeLength = 1; 409 Next = Op->Asl.Child; 410 411 /* First child is the access type */ 412 413 Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE; 414 Next->Asl.ParseOpcode = PARSEOP_RAW_DATA; 415 416 /* Second child is the optional access attribute */ 417 418 Next = Next->Asl.Next; 419 if (Next->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) 420 { 421 Next->Asl.Value.Integer = 0; 422 } 423 Next->Asl.AmlOpcode = AML_RAW_DATA_BYTE; 424 Next->Asl.ParseOpcode = PARSEOP_RAW_DATA; 425 } 426 427 428 /******************************************************************************* 429 * 430 * FUNCTION: OpcDoUnicode 431 * 432 * PARAMETERS: Op - Parse node 433 * 434 * RETURN: None 435 * 436 * DESCRIPTION: Implement the UNICODE ASL "macro". Convert the input string 437 * to a unicode buffer. There is no Unicode AML opcode. 438 * 439 * Note: The Unicode string is 16 bits per character, no leading signature, 440 * with a 16-bit terminating NULL. 441 * 442 ******************************************************************************/ 443 444 static void 445 OpcDoUnicode ( 446 ACPI_PARSE_OBJECT *Op) 447 { 448 ACPI_PARSE_OBJECT *InitializerOp; 449 UINT32 Length; 450 UINT32 Count; 451 UINT32 i; 452 UINT8 *AsciiString; 453 UINT16 *UnicodeString; 454 ACPI_PARSE_OBJECT *BufferLengthOp; 455 456 457 /* Change op into a buffer object */ 458 459 Op->Asl.CompileFlags &= ~NODE_COMPILE_TIME_CONST; 460 Op->Asl.ParseOpcode = PARSEOP_BUFFER; 461 UtSetParseOpName (Op); 462 463 /* Buffer Length is first, followed by the string */ 464 465 BufferLengthOp = Op->Asl.Child; 466 InitializerOp = BufferLengthOp->Asl.Next; 467 468 AsciiString = (UINT8 *) InitializerOp->Asl.Value.String; 469 470 /* Create a new buffer for the Unicode string */ 471 472 Count = strlen (InitializerOp->Asl.Value.String) + 1; 473 Length = Count * sizeof (UINT16); 474 UnicodeString = UtLocalCalloc (Length); 475 476 /* Convert to Unicode string (including null terminator) */ 477 478 for (i = 0; i < Count; i++) 479 { 480 UnicodeString[i] = (UINT16) AsciiString[i]; 481 } 482 483 /* 484 * Just set the buffer size node to be the buffer length, regardless 485 * of whether it was previously an integer or a default_arg placeholder 486 */ 487 BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER; 488 BufferLengthOp->Asl.AmlOpcode = AML_DWORD_OP; 489 BufferLengthOp->Asl.Value.Integer = Length; 490 UtSetParseOpName (BufferLengthOp); 491 492 (void) OpcSetOptimalIntegerSize (BufferLengthOp); 493 494 /* The Unicode string is a raw data buffer */ 495 496 InitializerOp->Asl.Value.Buffer = (UINT8 *) UnicodeString; 497 InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BUFFER; 498 InitializerOp->Asl.AmlLength = Length; 499 InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA; 500 InitializerOp->Asl.Child = NULL; 501 UtSetParseOpName (InitializerOp); 502 } 503 504 505 /******************************************************************************* 506 * 507 * FUNCTION: OpcDoEisaId 508 * 509 * PARAMETERS: Op - Parse node 510 * 511 * RETURN: None 512 * 513 * DESCRIPTION: Convert a string EISA ID to numeric representation. See the 514 * Pnp BIOS Specification for details. Here is an excerpt: 515 * 516 * A seven character ASCII representation of the product 517 * identifier compressed into a 32-bit identifier. The seven 518 * character ID consists of a three character manufacturer code, 519 * a three character hexadecimal product identifier, and a one 520 * character hexadecimal revision number. The manufacturer code 521 * is a 3 uppercase character code that is compressed into 3 5-bit 522 * values as follows: 523 * 1) Find hex ASCII value for each letter 524 * 2) Subtract 40h from each ASCII value 525 * 3) Retain 5 least signficant bits for each letter by 526 * discarding upper 3 bits because they are always 0. 527 * 4) Compressed code = concatenate 0 and the 3 5-bit values 528 * 529 * The format of the compressed product identifier is as follows: 530 * Byte 0: Bit 7 - Reserved (0) 531 * Bits 6-2: - 1st character of compressed mfg code 532 * Bits 1-0 - Upper 2 bits of 2nd character of mfg code 533 * Byte 1: Bits 7-5 - Lower 3 bits of 2nd character of mfg code 534 * Bits 4-0 - 3rd character of mfg code 535 * Byte 2: Bits 7-4 - 1st hex digit of product number 536 * Bits 3-0 - 2nd hex digit of product number 537 * Byte 3: Bits 7-4 - 3st hex digit of product number 538 * Bits 3-0 - Hex digit of the revision number 539 * 540 ******************************************************************************/ 541 542 static void 543 OpcDoEisaId ( 544 ACPI_PARSE_OBJECT *Op) 545 { 546 UINT32 EisaId = 0; 547 UINT32 BigEndianId; 548 char *InString; 549 ACPI_STATUS Status = AE_OK; 550 ACPI_NATIVE_UINT i; 551 552 553 InString = (char *) Op->Asl.Value.String; 554 555 /* 556 * The EISAID string must be exactly 7 characters and of the form 557 * "UUUXXXX" -- 3 uppercase letters and 4 hex digits (e.g., "PNP0001") 558 */ 559 if (ACPI_STRLEN (InString) != 7) 560 { 561 Status = AE_BAD_PARAMETER; 562 } 563 else 564 { 565 /* Check all 7 characters for correct format */ 566 567 for (i = 0; i < 7; i++) 568 { 569 /* First 3 characters must be uppercase letters */ 570 571 if (i < 3) 572 { 573 if (!isupper (InString[i])) 574 { 575 Status = AE_BAD_PARAMETER; 576 } 577 } 578 579 /* Last 4 characters must be hex digits */ 580 581 else if (!isxdigit (InString[i])) 582 { 583 Status = AE_BAD_PARAMETER; 584 } 585 } 586 } 587 588 if (ACPI_FAILURE (Status)) 589 { 590 AslError (ASL_ERROR, ASL_MSG_INVALID_EISAID, Op, Op->Asl.Value.String); 591 } 592 else 593 { 594 /* Create ID big-endian first (bits are contiguous) */ 595 596 BigEndianId = (UINT32) (InString[0] - 0x40) << 26 | 597 (UINT32) (InString[1] - 0x40) << 21 | 598 (UINT32) (InString[2] - 0x40) << 16 | 599 600 (UtHexCharToValue (InString[3])) << 12 | 601 (UtHexCharToValue (InString[4])) << 8 | 602 (UtHexCharToValue (InString[5])) << 4 | 603 UtHexCharToValue (InString[6]); 604 605 /* Swap to little-endian to get final ID (see function header) */ 606 607 EisaId = AcpiUtDwordByteSwap (BigEndianId); 608 } 609 610 /* 611 * Morph the Op into an integer, regardless of whether there 612 * was an error in the EISAID string 613 */ 614 Op->Asl.Value.Integer = EisaId; 615 616 Op->Asl.CompileFlags &= ~NODE_COMPILE_TIME_CONST; 617 Op->Asl.ParseOpcode = PARSEOP_INTEGER; 618 (void) OpcSetOptimalIntegerSize (Op); 619 620 /* Op is now an integer */ 621 622 UtSetParseOpName (Op); 623 } 624 625 626 /******************************************************************************* 627 * 628 * FUNCTION: OpcDoUiId 629 * 630 * PARAMETERS: Op - Parse node 631 * 632 * RETURN: None 633 * 634 * DESCRIPTION: Convert UUID string to 16-byte buffer 635 * 636 ******************************************************************************/ 637 638 static void 639 OpcDoUuId ( 640 ACPI_PARSE_OBJECT *Op) 641 { 642 char *InString; 643 char *Buffer; 644 ACPI_STATUS Status = AE_OK; 645 ACPI_NATIVE_UINT i; 646 ACPI_PARSE_OBJECT *NewOp; 647 648 649 InString = (char *) Op->Asl.Value.String; 650 651 if (ACPI_STRLEN (InString) != 36) 652 { 653 Status = AE_BAD_PARAMETER; 654 } 655 else 656 { 657 /* Check all 36 characters for correct format */ 658 659 for (i = 0; i < 36; i++) 660 { 661 if ((i == 8) || (i == 13) || (i == 18) || (i == 23)) 662 { 663 if (InString[i] != '-') 664 { 665 Status = AE_BAD_PARAMETER; 666 } 667 } 668 else 669 { 670 if (!isxdigit (InString[i])) 671 { 672 Status = AE_BAD_PARAMETER; 673 } 674 } 675 } 676 } 677 678 Buffer = UtLocalCalloc (16); 679 680 if (ACPI_FAILURE (Status)) 681 { 682 AslError (ASL_ERROR, ASL_MSG_INVALID_UUID, Op, Op->Asl.Value.String); 683 } 684 else for (i = 0; i < 16; i++) 685 { 686 Buffer[i] = (char) (UtHexCharToValue (InString[OpcMapToUUID[i]]) << 4); 687 Buffer[i] |= (char) UtHexCharToValue (InString[OpcMapToUUID[i] + 1]); 688 } 689 690 /* Change Op to a Buffer */ 691 692 Op->Asl.ParseOpcode = PARSEOP_BUFFER; 693 Op->Common.AmlOpcode = AML_BUFFER_OP; 694 695 /* Disable further optimization */ 696 697 Op->Asl.CompileFlags &= ~NODE_COMPILE_TIME_CONST; 698 UtSetParseOpName (Op); 699 700 /* Child node is the buffer length */ 701 702 NewOp = TrAllocateNode (PARSEOP_INTEGER); 703 704 NewOp->Asl.AmlOpcode = AML_BYTE_OP; 705 NewOp->Asl.Value.Integer = 16; 706 NewOp->Asl.Parent = Op; 707 708 Op->Asl.Child = NewOp; 709 Op = NewOp; 710 711 /* Peer to the child is the raw buffer data */ 712 713 NewOp = TrAllocateNode (PARSEOP_RAW_DATA); 714 NewOp->Asl.AmlOpcode = AML_RAW_DATA_BUFFER; 715 NewOp->Asl.AmlLength = 16; 716 NewOp->Asl.Value.String = (char *) Buffer; 717 NewOp->Asl.Parent = Op->Asl.Parent; 718 719 Op->Asl.Next = NewOp; 720 } 721 722 723 /******************************************************************************* 724 * 725 * FUNCTION: OpcGenerateAmlOpcode 726 * 727 * PARAMETERS: Op - Parse node 728 * 729 * RETURN: None 730 * 731 * DESCRIPTION: Generate the AML opcode associated with the node and its 732 * parse (lex/flex) keyword opcode. Essentially implements 733 * a mapping between the parse opcodes and the actual AML opcodes. 734 * 735 ******************************************************************************/ 736 737 void 738 OpcGenerateAmlOpcode ( 739 ACPI_PARSE_OBJECT *Op) 740 { 741 742 UINT16 Index; 743 744 745 Index = (UINT16) (Op->Asl.ParseOpcode - ASL_PARSE_OPCODE_BASE); 746 747 Op->Asl.AmlOpcode = AslKeywordMapping[Index].AmlOpcode; 748 Op->Asl.AcpiBtype = AslKeywordMapping[Index].AcpiBtype; 749 Op->Asl.CompileFlags |= AslKeywordMapping[Index].Flags; 750 751 if (!Op->Asl.Value.Integer) 752 { 753 Op->Asl.Value.Integer = AslKeywordMapping[Index].Value; 754 } 755 756 /* Special handling for some opcodes */ 757 758 switch (Op->Asl.ParseOpcode) 759 { 760 case PARSEOP_INTEGER: 761 /* 762 * Set the opcode based on the size of the integer 763 */ 764 (void) OpcSetOptimalIntegerSize (Op); 765 break; 766 767 case PARSEOP_OFFSET: 768 769 Op->Asl.AmlOpcodeLength = 1; 770 break; 771 772 case PARSEOP_ACCESSAS: 773 774 OpcDoAccessAs (Op); 775 break; 776 777 case PARSEOP_EISAID: 778 779 OpcDoEisaId (Op); 780 break; 781 782 case PARSEOP_TOUUID: 783 784 OpcDoUuId (Op); 785 break; 786 787 case PARSEOP_UNICODE: 788 789 OpcDoUnicode (Op); 790 break; 791 792 case PARSEOP_INCLUDE: 793 794 Op->Asl.Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; 795 Gbl_HasIncludeFiles = TRUE; 796 break; 797 798 case PARSEOP_EXTERNAL: 799 800 Op->Asl.Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; 801 Op->Asl.Child->Asl.Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG; 802 break; 803 804 default: 805 /* Nothing to do for other opcodes */ 806 break; 807 } 808 809 return; 810 } 811 812 813