sys/contrib/dev/acpica/source/compiler/dtutils.c

   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 - 2021, Intel Corp.
  12  * All rights reserved.
  13  *
  14  * 2. License
  15  *
  16  * 2.1. This is your license from Intel Corp. under its intellectual property
  17  * rights. You may have additional license terms from the party that provided
  18  * you this software, covering your right to use that party's intellectual
  19  * property rights.
  20  *
  21  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  22  * copy of the source code appearing in this file ("Covered Code") an
  23  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  24  * base code distributed originally by Intel ("Original Intel Code") to copy,
  25  * make derivatives, distribute, use and display any portion of the Covered
  26  * Code in any form, with the right to sublicense such rights; and
  27  *
  28  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  29  * license (with the right to sublicense), under only those claims of Intel
  30  * patents that are infringed by the Original Intel Code, to make, use, sell,
  31  * offer to sell, and import the Covered Code and derivative works thereof
  32  * solely to the minimum extent necessary to exercise the above copyright
  33  * license, and in no event shall the patent license extend to any additions
  34  * to or modifications of the Original Intel Code. No other license or right
  35  * is granted directly or by implication, estoppel or otherwise;
  36  *
  37  * The above copyright and patent license is granted only if the following
  38  * conditions are met:
  39  *
  40  * 3. Conditions
  41  *
  42  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  43  * Redistribution of source code of any substantial portion of the Covered
  44  * Code or modification with rights to further distribute source must include
  45  * the above Copyright Notice, the above License, this list of Conditions,
  46  * and the following Disclaimer and Export Compliance provision. In addition,
  47  * Licensee must cause all Covered Code to which Licensee contributes to
  48  * contain a file documenting the changes Licensee made to create that Covered
  49  * Code and the date of any change. Licensee must include in that file the
  50  * documentation of any changes made by any predecessor Licensee. Licensee
  51  * must include a prominent statement that the modification is derived,
  52  * directly or indirectly, from Original Intel Code.
  53  *
  54  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  55  * Redistribution of source code of any substantial portion of the Covered
  56  * Code or modification without rights to further distribute source must
  57  * include the following Disclaimer and Export Compliance provision in the
  58  * documentation and/or other materials provided with distribution. In
  59  * addition, Licensee may not authorize further sublicense of source of any
  60  * portion of the Covered Code, and must include terms to the effect that the
  61  * license from Licensee to its licensee is limited to the intellectual
  62  * property embodied in the software Licensee provides to its licensee, and
  63  * not to intellectual property embodied in modifications its licensee may
  64  * make.
  65  *
  66  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  67  * substantial portion of the Covered Code or modification must reproduce the
  68  * above Copyright Notice, and the following Disclaimer and Export Compliance
  69  * provision in the documentation and/or other materials provided with the
  70  * distribution.
  71  *
  72  * 3.4. Intel retains all right, title, and interest in and to the Original
  73  * Intel Code.
  74  *
  75  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  76  * Intel shall be used in advertising or otherwise to promote the sale, use or
  77  * other dealings in products derived from or relating to the Covered Code
  78  * without prior written authorization from Intel.
  79  *
  80  * 4. Disclaimer and Export Compliance
  81  *
  82  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  83  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  84  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
  85  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
  86  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
  87  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  88  * PARTICULAR PURPOSE.
  89  *
  90  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  91  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  92  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  93  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  94  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  95  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
  96  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  97  * LIMITED REMEDY.
  98  *
  99  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 100  * software or system incorporating such software without first obtaining any
 101  * required license or other approval from the U. S. Department of Commerce or
 102  * any other agency or department of the United States Government. In the
 103  * event Licensee exports any such software from the United States or
 104  * re-exports any such software from a foreign destination, Licensee shall
 105  * ensure that the distribution and export/re-export of the software is in
 106  * compliance with all laws, regulations, orders, or other restrictions of the
 107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 108  * any of its subsidiaries will export/re-export any technical data, process,
 109  * software, or service, directly or indirectly, to any country for which the
 110  * United States government or any agency thereof requires an export license,
 111  * other governmental approval, or letter of assurance, without first obtaining
 112  * such license, approval or letter.
 113  *
 114  *****************************************************************************
 115  *
 116  * Alternatively, you may choose to be licensed under the terms of the
 117  * following license:
 118  *
 119  * Redistribution and use in source and binary forms, with or without
 120  * modification, are permitted provided that the following conditions
 121  * are met:
 122  * 1. Redistributions of source code must retain the above copyright
 123  *    notice, this list of conditions, and the following disclaimer,
 124  *    without modification.
 125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 126  *    substantially similar to the "NO WARRANTY" disclaimer below
 127  *    ("Disclaimer") and any redistribution must be conditioned upon
 128  *    including a substantially similar Disclaimer requirement for further
 129  *    binary redistribution.
 130  * 3. Neither the names of the above-listed copyright holders nor the names
 131  *    of any contributors may be used to endorse or promote products derived
 132  *    from this software without specific prior written permission.
 133  *
 134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 145  *
 146  * Alternatively, you may choose to be licensed under the terms of the
 147  * GNU General Public License ("GPL") version 2 as published by the Free
 148  * Software Foundation.
 149  *
 150  *****************************************************************************/
 151
 152 #include "aslcompiler.h"
 153 #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_FLAGS4:
 415     case ACPI_DMT_FLAGS4_0:
 416     case ACPI_DMT_FLAGS4_4:
 417     case ACPI_DMT_FLAGS4_8:
 418     case ACPI_DMT_FLAGS4_12:
 419     case ACPI_DMT_FLAGS16_16:
 420
 421         Type = DT_FIELD_TYPE_FLAG;
 422         break;
 423
 424     case ACPI_DMT_NAME4:
 425     case ACPI_DMT_SIG:
 426     case ACPI_DMT_NAME6:
 427     case ACPI_DMT_NAME8:
 428     case ACPI_DMT_STRING:
 429     case ACPI_DMT_IVRS_UNTERMINATED_STRING:
 430
 431         Type = DT_FIELD_TYPE_STRING;
 432         break;
 433
 434     case ACPI_DMT_BUFFER:
 435     case ACPI_DMT_RAW_BUFFER:
 436     case ACPI_DMT_BUF7:
 437     case ACPI_DMT_BUF10:
 438     case ACPI_DMT_BUF12:
 439     case ACPI_DMT_BUF16:
 440     case ACPI_DMT_BUF18:
 441     case ACPI_DMT_BUF128:
 442     case ACPI_DMT_PCI_PATH:
 443     case ACPI_DMT_PMTT_VENDOR:
 444
 445         Type = DT_FIELD_TYPE_BUFFER;
 446         break;
 447
 448     case ACPI_DMT_GAS:
 449     case ACPI_DMT_HESTNTFY:
 450     case ACPI_DMT_IORTMEM:
 451
 452         Type = DT_FIELD_TYPE_INLINE_SUBTABLE;
 453         break;
 454
 455     case ACPI_DMT_UNICODE:
 456     case ACPI_DMT_WPBT_UNICODE:
 457
 458         Type = DT_FIELD_TYPE_UNICODE;
 459         break;
 460
 461     case ACPI_DMT_UUID:
 462
 463         Type = DT_FIELD_TYPE_UUID;
 464         break;
 465
 466     case ACPI_DMT_DEVICE_PATH:
 467
 468         Type = DT_FIELD_TYPE_DEVICE_PATH;
 469         break;
 470
 471     case ACPI_DMT_LABEL:
 472
 473         Type = DT_FIELD_TYPE_LABEL;
 474         break;
 475
 476     default:
 477
 478         Type = DT_FIELD_TYPE_INTEGER;
 479         break;
 480     }
 481
 482     return (Type);
 483 }
 484
 485
 486 /******************************************************************************
 487  *
 488  * FUNCTION:    DtGetBufferLength
 489  *
 490  * PARAMETERS:  Buffer              - List of integers,
 491  *                                    for example "10 3A 4F 2E"
 492  *
 493  * RETURN:      Count of integer
 494  *
 495  * DESCRIPTION: Get length of bytes needed to store the integers
 496  *
 497  *****************************************************************************/
 498
 499 UINT32
 500 DtGetBufferLength (
 501     char                    *Buffer)
 502 {
 503     UINT32                  ByteLength = 0;
 504
 505
 506     while (*Buffer)
 507     {
 508         if (*Buffer == ' ')
 509         {
 510             ByteLength++;
 511
 512             while (*Buffer == ' ')
 513             {
 514                 Buffer++;
 515             }
 516         }
 517
 518         Buffer++;
 519     }
 520
 521     return (++ByteLength);
 522 }
 523
 524
 525 /******************************************************************************
 526  *
 527  * FUNCTION:    DtGetFieldLength
 528  *
 529  * PARAMETERS:  Field               - Current field
 530  *              Info                - Data table info
 531  *
 532  * RETURN:      Field length
 533  *
 534  * DESCRIPTION: Get length of bytes needed to compile the field
 535  *
 536  * Note: This function must remain in sync with AcpiDmDumpTable.
 537  *
 538  *****************************************************************************/
 539
 540 UINT32
 541 DtGetFieldLength (
 542     DT_FIELD                *Field,
 543     ACPI_DMTABLE_INFO       *Info)
 544 {
 545     UINT32                  ByteLength = 0;
 546     char                    *Value;
 547
 548
 549     /* Length is based upon the opcode for this field in the info table */
 550
 551     switch (Info->Opcode)
 552     {
 553     case ACPI_DMT_FLAG0:
 554     case ACPI_DMT_FLAG1:
 555     case ACPI_DMT_FLAG2:
 556     case ACPI_DMT_FLAG3:
 557     case ACPI_DMT_FLAG4:
 558     case ACPI_DMT_FLAG5:
 559     case ACPI_DMT_FLAG6:
 560     case ACPI_DMT_FLAG7:
 561     case ACPI_DMT_FLAGS0:
 562     case ACPI_DMT_FLAGS1:
 563     case ACPI_DMT_FLAGS2:
 564     case ACPI_DMT_FLAGS4:
 565     case ACPI_DMT_FLAGS4_0:
 566     case ACPI_DMT_FLAGS4_4:
 567     case ACPI_DMT_FLAGS4_8:
 568     case ACPI_DMT_FLAGS4_12:
 569     case ACPI_DMT_FLAGS16_16:
 570     case ACPI_DMT_LABEL:
 571     case ACPI_DMT_EXTRA_TEXT:
 572
 573         ByteLength = 0;
 574         break;
 575
 576     case ACPI_DMT_UINT8:
 577     case ACPI_DMT_CHKSUM:
 578     case ACPI_DMT_SPACEID:
 579     case ACPI_DMT_ACCWIDTH:
 580     case ACPI_DMT_CEDT:
 581     case ACPI_DMT_IVRS:
 582     case ACPI_DMT_IVRS_DE:
 583     case ACPI_DMT_GTDT:
 584     case ACPI_DMT_MADT:
 585     case ACPI_DMT_NHLT1:
 586     case ACPI_DMT_NHLT1a:
 587     case ACPI_DMT_NHLT1b:
 588     case ACPI_DMT_NHLT1c:
 589     case ACPI_DMT_NHLT1d:
 590     case ACPI_DMT_NHLT1f:
 591     case ACPI_DMT_PCCT:
 592     case ACPI_DMT_PMTT:
 593     case ACPI_DMT_PPTT:
 594     case ACPI_DMT_RGRT:
 595     case ACPI_DMT_SDEV:
 596     case ACPI_DMT_SRAT:
 597     case ACPI_DMT_AEST:
 598     case ACPI_DMT_AEST_RES:
 599     case ACPI_DMT_AEST_XFACE:
 600     case ACPI_DMT_AEST_XRUPT:
 601     case ACPI_DMT_ASF:
 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_UINT16:
 615     case ACPI_DMT_DMAR:
 616     case ACPI_DMT_HEST:
 617     case ACPI_DMT_HMAT:
 618     case ACPI_DMT_NFIT:
 619     case ACPI_DMT_NHLT1e:
 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_BUF128:
 752
 753         ByteLength = 128;
 754         break;
 755
 756     case ACPI_DMT_UNICODE:
 757     case ACPI_DMT_WPBT_UNICODE:
 758
 759         Value = DtGetFieldValue (Field);
 760
 761         /* TBD: error if Value is NULL? (as below?) */
 762
 763         ByteLength = (strlen (Value) + 1) * sizeof (UINT16);
 764         break;
 765
 766     default:
 767
 768         DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid table opcode");
 769         return (0);
 770     }
 771
 772     return (ByteLength);
 773 }
 774
 775
 776 /******************************************************************************
 777  *
 778  * FUNCTION:    DtSum
 779  *
 780  * PARAMETERS:  DT_WALK_CALLBACK:
 781  *              Subtable            - Subtable
 782  *              Context             - Unused
 783  *              ReturnValue         - Store the checksum of subtable
 784  *
 785  * RETURN:      Status
 786  *
 787  * DESCRIPTION: Get the checksum of subtable
 788  *
 789  *****************************************************************************/
 790
 791 static void
 792 DtSum (
 793     DT_SUBTABLE             *Subtable,
 794     void                    *Context,
 795     void                    *ReturnValue)
 796 {
 797     UINT8                   Checksum;
 798     UINT8                   *Sum = ReturnValue;
 799
 800
 801     Checksum = AcpiTbChecksum (Subtable->Buffer, Subtable->Length);
 802     *Sum = (UINT8) (*Sum + Checksum);
 803 }
 804
 805
 806 /******************************************************************************
 807  *
 808  * FUNCTION:    DtSetTableChecksum
 809  *
 810  * PARAMETERS:  ChecksumPointer     - Where to return the checksum
 811  *
 812  * RETURN:      None
 813  *
 814  * DESCRIPTION: Set checksum of the whole data table into the checksum field
 815  *
 816  *****************************************************************************/
 817
 818 void
 819 DtSetTableChecksum (
 820     UINT8                   *ChecksumPointer)
 821 {
 822     UINT8                   Checksum = 0;
 823     UINT8                   OldSum;
 824
 825
 826     DtWalkTableTree (AslGbl_RootTable, DtSum, NULL, &Checksum);
 827
 828     OldSum = *ChecksumPointer;
 829     Checksum = (UINT8) (Checksum - OldSum);
 830
 831     /* Compute the final checksum */
 832
 833     Checksum = (UINT8) (0 - Checksum);
 834     *ChecksumPointer = Checksum;
 835 }
 836
 837
 838 /******************************************************************************
 839  *
 840  * FUNCTION:    DtSetTableLength
 841  *
 842  * PARAMETERS:  None
 843  *
 844  * RETURN:      None
 845  *
 846  * DESCRIPTION: Walk the subtables and set all the length fields
 847  *
 848  *****************************************************************************/
 849
 850 void
 851 DtSetTableLength (
 852     void)
 853 {
 854     DT_SUBTABLE             *ParentTable;
 855     DT_SUBTABLE             *ChildTable;
 856
 857
 858     ParentTable = AslGbl_RootTable;
 859     ChildTable = NULL;
 860
 861     if (!ParentTable)
 862     {
 863         return;
 864     }
 865
 866     DtSetSubtableLength (ParentTable);
 867
 868     while (1)
 869     {
 870         ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
 871         if (ChildTable)
 872         {
 873             if (ChildTable->LengthField)
 874             {
 875                 DtSetSubtableLength (ChildTable);
 876             }
 877
 878             if (ChildTable->Child)
 879             {
 880                 ParentTable = ChildTable;
 881                 ChildTable = NULL;
 882             }
 883             else
 884             {
 885                 ParentTable->TotalLength += ChildTable->TotalLength;
 886                 if (ParentTable->LengthField)
 887                 {
 888                     DtSetSubtableLength (ParentTable);
 889                 }
 890             }
 891         }
 892         else
 893         {
 894             ChildTable = ParentTable;
 895
 896             if (ChildTable == AslGbl_RootTable)
 897             {
 898                 break;
 899             }
 900
 901             ParentTable = DtGetParentSubtable (ParentTable);
 902
 903             ParentTable->TotalLength += ChildTable->TotalLength;
 904             if (ParentTable->LengthField)
 905             {
 906                 DtSetSubtableLength (ParentTable);
 907             }
 908         }
 909     }
 910 }
 911
 912
 913 /******************************************************************************
 914  *
 915  * FUNCTION:    DtWalkTableTree
 916  *
 917  * PARAMETERS:  StartTable          - Subtable in the tree where walking begins
 918  *              UserFunction        - Called during the walk
 919  *              Context             - Passed to user function
 920  *              ReturnValue         - The return value of UserFunction
 921  *
 922  * RETURN:      None
 923  *
 924  * DESCRIPTION: Performs a depth-first walk of the subtable tree
 925  *
 926  *****************************************************************************/
 927
 928 void
 929 DtWalkTableTree (
 930     DT_SUBTABLE             *StartTable,
 931     DT_WALK_CALLBACK        UserFunction,
 932     void                    *Context,
 933     void                    *ReturnValue)
 934 {
 935     DT_SUBTABLE             *ParentTable;
 936     DT_SUBTABLE             *ChildTable;
 937
 938
 939     ParentTable = StartTable;
 940     ChildTable = NULL;
 941
 942     if (!ParentTable)
 943     {
 944         return;
 945     }
 946
 947     UserFunction (ParentTable, Context, ReturnValue);
 948
 949     while (1)
 950     {
 951         ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
 952         if (ChildTable)
 953         {
 954             UserFunction (ChildTable, Context, ReturnValue);
 955
 956             if (ChildTable->Child)
 957             {
 958                 ParentTable = ChildTable;
 959                 ChildTable = NULL;
 960             }
 961         }
 962         else
 963         {
 964             ChildTable = ParentTable;
 965             if (ChildTable == AslGbl_RootTable)
 966             {
 967                 break;
 968             }
 969
 970             ParentTable = DtGetParentSubtable (ParentTable);
 971
 972             if (ChildTable->Peer == StartTable)
 973             {
 974                 break;
 975             }
 976         }
 977     }
 978 }