1 /****************************************************************************** 2 * 3 * Module Name: dtutils.c - Utility routines for the data table compiler 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2024, 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/compiler/aslcompiler.h> 153 #include <contrib/dev/acpica/include/actables.h> 154 155 #define _COMPONENT DT_COMPILER 156 ACPI_MODULE_NAME ("dtutils") 157 158 /* Local prototypes */ 159 160 static void 161 DtSum ( 162 DT_SUBTABLE *Subtable, 163 void *Context, 164 void *ReturnValue); 165 166 167 /****************************************************************************** 168 * 169 * FUNCTION: DtError 170 * 171 * PARAMETERS: Level - Seriousness (Warning/error, etc.) 172 * MessageId - Index into global message buffer 173 * Op - Parse node where error happened 174 * ExtraMessage - additional error message 175 * 176 * RETURN: None 177 * 178 * DESCRIPTION: Common error interface for data table compiler 179 * 180 *****************************************************************************/ 181 182 void 183 DtError ( 184 UINT8 Level, 185 UINT16 MessageId, 186 DT_FIELD *FieldObject, 187 char *ExtraMessage) 188 { 189 UINT32 Line = 0; 190 191 192 /* Field object could be NULL */ 193 194 if (FieldObject) 195 { 196 Line = FieldObject->Line; 197 } 198 199 /* Check if user wants to ignore this exception */ 200 201 if (AslIsExceptionIgnored (AslGbl_Files[ASL_FILE_INPUT].Filename, 202 Line, Level, MessageId)) 203 { 204 return; 205 } 206 207 if (FieldObject) 208 { 209 AslCommonError (Level, MessageId, 210 FieldObject->Line, 211 FieldObject->Line, 212 FieldObject->ByteOffset, 213 FieldObject->Column, 214 AslGbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage); 215 } 216 else 217 { 218 AslCommonError (Level, MessageId, 0, 219 0, 0, 0, 0, ExtraMessage); 220 } 221 } 222 223 224 /****************************************************************************** 225 * 226 * FUNCTION: DtNameError 227 * 228 * PARAMETERS: Level - Seriousness (Warning/error, etc.) 229 * MessageId - Index into global message buffer 230 * Op - Parse node where error happened 231 * ExtraMessage - additional error message 232 * 233 * RETURN: None 234 * 235 * DESCRIPTION: Error interface for named objects 236 * 237 *****************************************************************************/ 238 239 void 240 DtNameError ( 241 UINT8 Level, 242 UINT16 MessageId, 243 DT_FIELD *FieldObject, 244 char *ExtraMessage) 245 { 246 247 switch (Level) 248 { 249 case ASL_WARNING2: 250 case ASL_WARNING3: 251 252 if (AslGbl_WarningLevel < Level) 253 { 254 return; 255 } 256 break; 257 258 default: 259 260 break; 261 } 262 263 if (FieldObject) 264 { 265 AslCommonError (Level, MessageId, 266 FieldObject->Line, 267 FieldObject->Line, 268 FieldObject->ByteOffset, 269 FieldObject->NameColumn, 270 AslGbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage); 271 } 272 else 273 { 274 AslCommonError (Level, MessageId, 0, 275 0, 0, 0, 0, ExtraMessage); 276 } 277 } 278 279 280 /******************************************************************************* 281 * 282 * FUNCTION: DtFatal 283 * 284 * PARAMETERS: None 285 * 286 * RETURN: None 287 * 288 * DESCRIPTION: Dump the error log and abort the compiler. Used for serious 289 * compile or I/O errors 290 * 291 ******************************************************************************/ 292 293 void 294 DtFatal ( 295 UINT16 MessageId, 296 DT_FIELD *FieldObject, 297 char *ExtraMessage) 298 { 299 300 DtError (ASL_ERROR, MessageId, FieldObject, ExtraMessage); 301 302 /* 303 * TBD: remove this entire function, DtFatal 304 * 305 * We cannot abort the compiler on error, because we may be compiling a 306 * list of files. We must move on to the next file. 307 */ 308 #ifdef __OBSOLETE 309 CmCleanupAndExit (); 310 exit (1); 311 #endif 312 } 313 314 315 /******************************************************************************* 316 * 317 * FUNCTION: DtDoConstant 318 * 319 * PARAMETERS: String - Only hex constants are supported, 320 * regardless of whether the 0x prefix 321 * is used 322 * 323 * RETURN: Converted Integer 324 * 325 * DESCRIPTION: Convert a string to an integer, with overflow/error checking. 326 * 327 ******************************************************************************/ 328 329 UINT64 330 DtDoConstant ( 331 char *String) 332 { 333 UINT64 ConvertedInteger; 334 335 336 /* 337 * TBD: The ImplicitStrtoul64 function does not report overflow 338 * conditions. The input string is simply truncated. If it is 339 * desired to report overflow to the table compiler, this should 340 * somehow be added here. Note: integers that are prefixed with 0x 341 * or not are both hex integers. 342 */ 343 ConvertedInteger = AcpiUtImplicitStrtoul64 (String); 344 return (ConvertedInteger); 345 } 346 347 /****************************************************************************** 348 * 349 * FUNCTION: DtGetFieldValue 350 * 351 * PARAMETERS: Field - Current field list pointer 352 * 353 * RETURN: Field value 354 * 355 * DESCRIPTION: Get field value 356 * 357 *****************************************************************************/ 358 359 char * 360 DtGetFieldValue ( 361 DT_FIELD *Field) 362 { 363 if (!Field) 364 { 365 return (NULL); 366 } 367 368 return (Field->Value); 369 } 370 371 372 /****************************************************************************** 373 * 374 * FUNCTION: DtGetFieldType 375 * 376 * PARAMETERS: Info - Data table info 377 * 378 * RETURN: Field type 379 * 380 * DESCRIPTION: Get field type 381 * 382 *****************************************************************************/ 383 384 UINT8 385 DtGetFieldType ( 386 ACPI_DMTABLE_INFO *Info) 387 { 388 UINT8 Type; 389 390 391 /* DT_FLAG means that this is the start of a block of flag bits */ 392 /* TBD - we can make these a separate opcode later */ 393 394 if (Info->Flags & DT_FLAG) 395 { 396 return (DT_FIELD_TYPE_FLAGS_INTEGER); 397 } 398 399 /* Type is based upon the opcode for this field in the info table */ 400 401 switch (Info->Opcode) 402 { 403 case ACPI_DMT_FLAG0: 404 case ACPI_DMT_FLAG1: 405 case ACPI_DMT_FLAG2: 406 case ACPI_DMT_FLAG3: 407 case ACPI_DMT_FLAG4: 408 case ACPI_DMT_FLAG5: 409 case ACPI_DMT_FLAG6: 410 case ACPI_DMT_FLAG7: 411 case ACPI_DMT_FLAGS0: 412 case ACPI_DMT_FLAGS1: 413 case ACPI_DMT_FLAGS2: 414 case ACPI_DMT_FLAGS8_2: 415 case ACPI_DMT_FLAGS4: 416 case ACPI_DMT_FLAGS4_0: 417 case ACPI_DMT_FLAGS4_4: 418 case ACPI_DMT_FLAGS4_8: 419 case ACPI_DMT_FLAGS4_12: 420 case ACPI_DMT_FLAGS16_16: 421 422 Type = DT_FIELD_TYPE_FLAG; 423 break; 424 425 case ACPI_DMT_NAME4: 426 case ACPI_DMT_SIG: 427 case ACPI_DMT_NAME6: 428 case ACPI_DMT_NAME8: 429 case ACPI_DMT_STRING: 430 case ACPI_DMT_IVRS_UNTERMINATED_STRING: 431 432 Type = DT_FIELD_TYPE_STRING; 433 break; 434 435 case ACPI_DMT_BUFFER: 436 case ACPI_DMT_RAW_BUFFER: 437 case ACPI_DMT_BUF7: 438 case ACPI_DMT_BUF10: 439 case ACPI_DMT_BUF12: 440 case ACPI_DMT_BUF16: 441 case ACPI_DMT_BUF18: 442 case ACPI_DMT_BUF32: 443 case ACPI_DMT_BUF112: 444 case ACPI_DMT_BUF128: 445 case ACPI_DMT_PCI_PATH: 446 case ACPI_DMT_PMTT_VENDOR: 447 448 Type = DT_FIELD_TYPE_BUFFER; 449 break; 450 451 case ACPI_DMT_GAS: 452 case ACPI_DMT_HESTNTFY: 453 case ACPI_DMT_IORTMEM: 454 455 Type = DT_FIELD_TYPE_INLINE_SUBTABLE; 456 break; 457 458 case ACPI_DMT_UNICODE: 459 case ACPI_DMT_WPBT_UNICODE: 460 461 Type = DT_FIELD_TYPE_UNICODE; 462 break; 463 464 case ACPI_DMT_UUID: 465 466 Type = DT_FIELD_TYPE_UUID; 467 break; 468 469 case ACPI_DMT_DEVICE_PATH: 470 471 Type = DT_FIELD_TYPE_DEVICE_PATH; 472 break; 473 474 case ACPI_DMT_LABEL: 475 476 Type = DT_FIELD_TYPE_LABEL; 477 break; 478 479 default: 480 481 Type = DT_FIELD_TYPE_INTEGER; 482 break; 483 } 484 485 return (Type); 486 } 487 488 489 /****************************************************************************** 490 * 491 * FUNCTION: DtGetBufferLength 492 * 493 * PARAMETERS: Buffer - List of integers, 494 * for example "10 3A 4F 2E" 495 * 496 * RETURN: Count of integer 497 * 498 * DESCRIPTION: Get length of bytes needed to store the integers 499 * 500 *****************************************************************************/ 501 502 UINT32 503 DtGetBufferLength ( 504 char *Buffer) 505 { 506 UINT32 ByteLength = 0; 507 508 509 while (*Buffer) 510 { 511 if (*Buffer == ' ') 512 { 513 ByteLength++; 514 515 while (*Buffer == ' ') 516 { 517 Buffer++; 518 } 519 } 520 521 Buffer++; 522 } 523 524 return (++ByteLength); 525 } 526 527 528 /****************************************************************************** 529 * 530 * FUNCTION: DtGetFieldLength 531 * 532 * PARAMETERS: Field - Current field 533 * Info - Data table info 534 * 535 * RETURN: Field length 536 * 537 * DESCRIPTION: Get length of bytes needed to compile the field 538 * 539 * Note: This function must remain in sync with AcpiDmDumpTable. 540 * 541 *****************************************************************************/ 542 543 UINT32 544 DtGetFieldLength ( 545 DT_FIELD *Field, 546 ACPI_DMTABLE_INFO *Info) 547 { 548 UINT32 ByteLength = 0; 549 char *Value; 550 551 552 /* Length is based upon the opcode for this field in the info table */ 553 554 switch (Info->Opcode) 555 { 556 case ACPI_DMT_FLAG0: 557 case ACPI_DMT_FLAG1: 558 case ACPI_DMT_FLAG2: 559 case ACPI_DMT_FLAG3: 560 case ACPI_DMT_FLAG4: 561 case ACPI_DMT_FLAG5: 562 case ACPI_DMT_FLAG6: 563 case ACPI_DMT_FLAG7: 564 case ACPI_DMT_FLAGS0: 565 case ACPI_DMT_FLAGS1: 566 case ACPI_DMT_FLAGS2: 567 case ACPI_DMT_FLAGS8_2: 568 case ACPI_DMT_FLAGS4: 569 case ACPI_DMT_FLAGS4_0: 570 case ACPI_DMT_FLAGS4_4: 571 case ACPI_DMT_FLAGS4_8: 572 case ACPI_DMT_FLAGS4_12: 573 case ACPI_DMT_FLAGS16_16: 574 case ACPI_DMT_LABEL: 575 case ACPI_DMT_EXTRA_TEXT: 576 577 ByteLength = 0; 578 break; 579 580 case ACPI_DMT_UINT8: 581 case ACPI_DMT_CHKSUM: 582 case ACPI_DMT_SPACEID: 583 case ACPI_DMT_ACCWIDTH: 584 case ACPI_DMT_CEDT: 585 case ACPI_DMT_IVRS: 586 case ACPI_DMT_IVRS_DE: 587 case ACPI_DMT_GTDT: 588 case ACPI_DMT_MADT: 589 case ACPI_DMT_MPAM_LOCATOR: 590 case ACPI_DMT_PCCT: 591 case ACPI_DMT_PMTT: 592 case ACPI_DMT_PPTT: 593 case ACPI_DMT_RGRT: 594 case ACPI_DMT_SDEV: 595 case ACPI_DMT_SRAT: 596 case ACPI_DMT_AEST: 597 case ACPI_DMT_AEST_RES: 598 case ACPI_DMT_AEST_XFACE: 599 case ACPI_DMT_AEST_XRUPT: 600 case ACPI_DMT_ASF: 601 case ACPI_DMT_CDAT: 602 case ACPI_DMT_HESTNTYP: 603 case ACPI_DMT_FADTPM: 604 case ACPI_DMT_EINJACT: 605 case ACPI_DMT_EINJINST: 606 case ACPI_DMT_ERSTACT: 607 case ACPI_DMT_ERSTINST: 608 case ACPI_DMT_DMAR_SCOPE: 609 case ACPI_DMT_VIOT: 610 611 ByteLength = 1; 612 break; 613 614 case ACPI_DMT_ASPT: 615 case ACPI_DMT_UINT16: 616 case ACPI_DMT_DMAR: 617 case ACPI_DMT_HEST: 618 case ACPI_DMT_HMAT: 619 case ACPI_DMT_NFIT: 620 case ACPI_DMT_PCI_PATH: 621 case ACPI_DMT_PHAT: 622 623 ByteLength = 2; 624 break; 625 626 case ACPI_DMT_UINT24: 627 628 ByteLength = 3; 629 break; 630 631 case ACPI_DMT_UINT32: 632 case ACPI_DMT_AEST_CACHE: 633 case ACPI_DMT_AEST_GIC: 634 case ACPI_DMT_NAME4: 635 case ACPI_DMT_SIG: 636 case ACPI_DMT_LPIT: 637 case ACPI_DMT_TPM2: 638 639 ByteLength = 4; 640 break; 641 642 case ACPI_DMT_UINT40: 643 644 ByteLength = 5; 645 break; 646 647 case ACPI_DMT_UINT48: 648 case ACPI_DMT_NAME6: 649 650 ByteLength = 6; 651 break; 652 653 case ACPI_DMT_UINT56: 654 case ACPI_DMT_BUF7: 655 656 ByteLength = 7; 657 break; 658 659 case ACPI_DMT_UINT64: 660 case ACPI_DMT_NAME8: 661 662 ByteLength = 8; 663 break; 664 665 case ACPI_DMT_STRING: 666 667 Value = DtGetFieldValue (Field); 668 if (Value) 669 { 670 ByteLength = strlen (Value) + 1; 671 } 672 else 673 { /* At this point, this is a fatal error */ 674 675 sprintf (AslGbl_MsgBuffer, "Expected \"%s\"", Info->Name); 676 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, AslGbl_MsgBuffer); 677 return (0); 678 } 679 break; 680 681 case ACPI_DMT_IVRS_UNTERMINATED_STRING: 682 683 Value = DtGetFieldValue (Field); 684 if (Value) 685 { 686 ByteLength = strlen (Value); 687 } 688 else 689 { /* At this point, this is a fatal error */ 690 691 sprintf (AslGbl_MsgBuffer, "Expected \"%s\"", Info->Name); 692 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, AslGbl_MsgBuffer); 693 return (0); 694 } 695 break; 696 697 case ACPI_DMT_GAS: 698 699 ByteLength = sizeof (ACPI_GENERIC_ADDRESS); 700 break; 701 702 case ACPI_DMT_HESTNTFY: 703 704 ByteLength = sizeof (ACPI_HEST_NOTIFY); 705 break; 706 707 case ACPI_DMT_IORTMEM: 708 709 ByteLength = sizeof (ACPI_IORT_MEMORY_ACCESS); 710 break; 711 712 case ACPI_DMT_BUFFER: 713 case ACPI_DMT_RAW_BUFFER: 714 case ACPI_DMT_PMTT_VENDOR: 715 716 Value = DtGetFieldValue (Field); 717 if (Value) 718 { 719 ByteLength = DtGetBufferLength (Value); 720 } 721 else 722 { /* At this point, this is a fatal error */ 723 724 sprintf (AslGbl_MsgBuffer, "Expected \"%s\"", Info->Name); 725 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, AslGbl_MsgBuffer); 726 return (0); 727 } 728 break; 729 730 case ACPI_DMT_BUF10: 731 732 ByteLength = 10; 733 break; 734 735 case ACPI_DMT_BUF12: 736 737 ByteLength = 12; 738 break; 739 740 case ACPI_DMT_BUF16: 741 case ACPI_DMT_UUID: 742 743 ByteLength = 16; 744 break; 745 746 case ACPI_DMT_BUF18: 747 748 ByteLength = 18; 749 break; 750 751 case ACPI_DMT_BUF32: 752 753 ByteLength = 32; 754 break; 755 756 case ACPI_DMT_BUF112: 757 758 ByteLength = 112; 759 break; 760 761 case ACPI_DMT_BUF128: 762 763 ByteLength = 128; 764 break; 765 766 case ACPI_DMT_UNICODE: 767 case ACPI_DMT_WPBT_UNICODE: 768 769 Value = DtGetFieldValue (Field); 770 771 /* TBD: error if Value is NULL? (as below?) */ 772 773 ByteLength = (strlen (Value) + 1) * sizeof (UINT16); 774 break; 775 776 default: 777 778 DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid table opcode"); 779 return (0); 780 } 781 782 return (ByteLength); 783 } 784 785 786 /****************************************************************************** 787 * 788 * FUNCTION: DtSum 789 * 790 * PARAMETERS: DT_WALK_CALLBACK: 791 * Subtable - Subtable 792 * Context - Unused 793 * ReturnValue - Store the checksum of subtable 794 * 795 * RETURN: Status 796 * 797 * DESCRIPTION: Get the checksum of subtable 798 * 799 *****************************************************************************/ 800 801 static void 802 DtSum ( 803 DT_SUBTABLE *Subtable, 804 void *Context, 805 void *ReturnValue) 806 { 807 UINT8 Checksum; 808 UINT8 *Sum = ReturnValue; 809 810 811 Checksum = AcpiUtChecksum (Subtable->Buffer, Subtable->Length); 812 *Sum = (UINT8) (*Sum + Checksum); 813 } 814 815 816 /****************************************************************************** 817 * 818 * FUNCTION: DtSetTableChecksum 819 * 820 * PARAMETERS: ChecksumPointer - Where to return the checksum 821 * 822 * RETURN: None 823 * 824 * DESCRIPTION: Set checksum of the whole data table into the checksum field 825 * 826 *****************************************************************************/ 827 828 void 829 DtSetTableChecksum ( 830 UINT8 *ChecksumPointer) 831 { 832 UINT8 Checksum = 0; 833 UINT8 OldSum; 834 835 836 DtWalkTableTree (AslGbl_RootTable, DtSum, NULL, &Checksum); 837 838 OldSum = *ChecksumPointer; 839 Checksum = (UINT8) (Checksum - OldSum); 840 841 /* Compute the final checksum */ 842 843 Checksum = (UINT8) (0 - Checksum); 844 *ChecksumPointer = Checksum; 845 } 846 847 848 /****************************************************************************** 849 * 850 * FUNCTION: DtSetTableLength 851 * 852 * PARAMETERS: None 853 * 854 * RETURN: None 855 * 856 * DESCRIPTION: Walk the subtables and set all the length fields 857 * 858 *****************************************************************************/ 859 860 void 861 DtSetTableLength ( 862 void) 863 { 864 DT_SUBTABLE *ParentTable; 865 DT_SUBTABLE *ChildTable; 866 867 868 ParentTable = AslGbl_RootTable; 869 ChildTable = NULL; 870 871 if (!ParentTable) 872 { 873 return; 874 } 875 876 DtSetSubtableLength (ParentTable); 877 878 while (1) 879 { 880 ChildTable = DtGetNextSubtable (ParentTable, ChildTable); 881 if (ChildTable) 882 { 883 if (ChildTable->LengthField) 884 { 885 DtSetSubtableLength (ChildTable); 886 } 887 888 if (ChildTable->Child) 889 { 890 ParentTable = ChildTable; 891 ChildTable = NULL; 892 } 893 else 894 { 895 ParentTable->TotalLength += ChildTable->TotalLength; 896 if (ParentTable->LengthField) 897 { 898 DtSetSubtableLength (ParentTable); 899 } 900 } 901 } 902 else 903 { 904 ChildTable = ParentTable; 905 906 if (ChildTable == AslGbl_RootTable) 907 { 908 break; 909 } 910 911 ParentTable = DtGetParentSubtable (ParentTable); 912 913 ParentTable->TotalLength += ChildTable->TotalLength; 914 if (ParentTable->LengthField) 915 { 916 DtSetSubtableLength (ParentTable); 917 } 918 } 919 } 920 } 921 922 923 /****************************************************************************** 924 * 925 * FUNCTION: DtWalkTableTree 926 * 927 * PARAMETERS: StartTable - Subtable in the tree where walking begins 928 * UserFunction - Called during the walk 929 * Context - Passed to user function 930 * ReturnValue - The return value of UserFunction 931 * 932 * RETURN: None 933 * 934 * DESCRIPTION: Performs a depth-first walk of the subtable tree 935 * 936 *****************************************************************************/ 937 938 void 939 DtWalkTableTree ( 940 DT_SUBTABLE *StartTable, 941 DT_WALK_CALLBACK UserFunction, 942 void *Context, 943 void *ReturnValue) 944 { 945 DT_SUBTABLE *ParentTable; 946 DT_SUBTABLE *ChildTable; 947 948 949 ParentTable = StartTable; 950 ChildTable = NULL; 951 952 if (!ParentTable) 953 { 954 return; 955 } 956 957 UserFunction (ParentTable, Context, ReturnValue); 958 959 while (1) 960 { 961 ChildTable = DtGetNextSubtable (ParentTable, ChildTable); 962 if (ChildTable) 963 { 964 UserFunction (ChildTable, Context, ReturnValue); 965 966 if (ChildTable->Child) 967 { 968 ParentTable = ChildTable; 969 ChildTable = NULL; 970 } 971 } 972 else 973 { 974 ChildTable = ParentTable; 975 if (ChildTable == AslGbl_RootTable) 976 { 977 break; 978 } 979 980 ParentTable = DtGetParentSubtable (ParentTable); 981 982 if (ChildTable->Peer == StartTable) 983 { 984 break; 985 } 986 } 987 } 988 } 989