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 - 2023, 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
DtError(UINT8 Level,UINT16 MessageId,DT_FIELD * FieldObject,char * ExtraMessage)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
DtNameError(UINT8 Level,UINT16 MessageId,DT_FIELD * FieldObject,char * ExtraMessage)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
DtFatal(UINT16 MessageId,DT_FIELD * FieldObject,char * ExtraMessage)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
DtDoConstant(char * String)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 *
DtGetFieldValue(DT_FIELD * Field)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
DtGetFieldType(ACPI_DMTABLE_INFO * Info)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_BUF128:
443 case ACPI_DMT_PCI_PATH:
444 case ACPI_DMT_PMTT_VENDOR:
445
446 Type = DT_FIELD_TYPE_BUFFER;
447 break;
448
449 case ACPI_DMT_GAS:
450 case ACPI_DMT_HESTNTFY:
451 case ACPI_DMT_IORTMEM:
452
453 Type = DT_FIELD_TYPE_INLINE_SUBTABLE;
454 break;
455
456 case ACPI_DMT_UNICODE:
457 case ACPI_DMT_WPBT_UNICODE:
458
459 Type = DT_FIELD_TYPE_UNICODE;
460 break;
461
462 case ACPI_DMT_UUID:
463
464 Type = DT_FIELD_TYPE_UUID;
465 break;
466
467 case ACPI_DMT_DEVICE_PATH:
468
469 Type = DT_FIELD_TYPE_DEVICE_PATH;
470 break;
471
472 case ACPI_DMT_LABEL:
473
474 Type = DT_FIELD_TYPE_LABEL;
475 break;
476
477 default:
478
479 Type = DT_FIELD_TYPE_INTEGER;
480 break;
481 }
482
483 return (Type);
484 }
485
486
487 /******************************************************************************
488 *
489 * FUNCTION: DtGetBufferLength
490 *
491 * PARAMETERS: Buffer - List of integers,
492 * for example "10 3A 4F 2E"
493 *
494 * RETURN: Count of integer
495 *
496 * DESCRIPTION: Get length of bytes needed to store the integers
497 *
498 *****************************************************************************/
499
500 UINT32
DtGetBufferLength(char * Buffer)501 DtGetBufferLength (
502 char *Buffer)
503 {
504 UINT32 ByteLength = 0;
505
506
507 while (*Buffer)
508 {
509 if (*Buffer == ' ')
510 {
511 ByteLength++;
512
513 while (*Buffer == ' ')
514 {
515 Buffer++;
516 }
517 }
518
519 Buffer++;
520 }
521
522 return (++ByteLength);
523 }
524
525
526 /******************************************************************************
527 *
528 * FUNCTION: DtGetFieldLength
529 *
530 * PARAMETERS: Field - Current field
531 * Info - Data table info
532 *
533 * RETURN: Field length
534 *
535 * DESCRIPTION: Get length of bytes needed to compile the field
536 *
537 * Note: This function must remain in sync with AcpiDmDumpTable.
538 *
539 *****************************************************************************/
540
541 UINT32
DtGetFieldLength(DT_FIELD * Field,ACPI_DMTABLE_INFO * Info)542 DtGetFieldLength (
543 DT_FIELD *Field,
544 ACPI_DMTABLE_INFO *Info)
545 {
546 UINT32 ByteLength = 0;
547 char *Value;
548
549
550 /* Length is based upon the opcode for this field in the info table */
551
552 switch (Info->Opcode)
553 {
554 case ACPI_DMT_FLAG0:
555 case ACPI_DMT_FLAG1:
556 case ACPI_DMT_FLAG2:
557 case ACPI_DMT_FLAG3:
558 case ACPI_DMT_FLAG4:
559 case ACPI_DMT_FLAG5:
560 case ACPI_DMT_FLAG6:
561 case ACPI_DMT_FLAG7:
562 case ACPI_DMT_FLAGS0:
563 case ACPI_DMT_FLAGS1:
564 case ACPI_DMT_FLAGS2:
565 case ACPI_DMT_FLAGS8_2:
566 case ACPI_DMT_FLAGS4:
567 case ACPI_DMT_FLAGS4_0:
568 case ACPI_DMT_FLAGS4_4:
569 case ACPI_DMT_FLAGS4_8:
570 case ACPI_DMT_FLAGS4_12:
571 case ACPI_DMT_FLAGS16_16:
572 case ACPI_DMT_LABEL:
573 case ACPI_DMT_EXTRA_TEXT:
574
575 ByteLength = 0;
576 break;
577
578 case ACPI_DMT_UINT8:
579 case ACPI_DMT_CHKSUM:
580 case ACPI_DMT_SPACEID:
581 case ACPI_DMT_ACCWIDTH:
582 case ACPI_DMT_CEDT:
583 case ACPI_DMT_IVRS:
584 case ACPI_DMT_IVRS_DE:
585 case ACPI_DMT_GTDT:
586 case ACPI_DMT_MADT:
587 case ACPI_DMT_MPAM_LOCATOR:
588 case ACPI_DMT_PCCT:
589 case ACPI_DMT_PMTT:
590 case ACPI_DMT_PPTT:
591 case ACPI_DMT_RGRT:
592 case ACPI_DMT_SDEV:
593 case ACPI_DMT_SRAT:
594 case ACPI_DMT_AEST:
595 case ACPI_DMT_AEST_RES:
596 case ACPI_DMT_AEST_XFACE:
597 case ACPI_DMT_AEST_XRUPT:
598 case ACPI_DMT_ASF:
599 case ACPI_DMT_CDAT:
600 case ACPI_DMT_HESTNTYP:
601 case ACPI_DMT_FADTPM:
602 case ACPI_DMT_EINJACT:
603 case ACPI_DMT_EINJINST:
604 case ACPI_DMT_ERSTACT:
605 case ACPI_DMT_ERSTINST:
606 case ACPI_DMT_DMAR_SCOPE:
607 case ACPI_DMT_VIOT:
608
609 ByteLength = 1;
610 break;
611
612 case ACPI_DMT_ASPT:
613 case ACPI_DMT_UINT16:
614 case ACPI_DMT_DMAR:
615 case ACPI_DMT_HEST:
616 case ACPI_DMT_HMAT:
617 case ACPI_DMT_NFIT:
618 case ACPI_DMT_PCI_PATH:
619 case ACPI_DMT_PHAT:
620
621 ByteLength = 2;
622 break;
623
624 case ACPI_DMT_UINT24:
625
626 ByteLength = 3;
627 break;
628
629 case ACPI_DMT_UINT32:
630 case ACPI_DMT_AEST_CACHE:
631 case ACPI_DMT_AEST_GIC:
632 case ACPI_DMT_NAME4:
633 case ACPI_DMT_SIG:
634 case ACPI_DMT_LPIT:
635 case ACPI_DMT_TPM2:
636
637 ByteLength = 4;
638 break;
639
640 case ACPI_DMT_UINT40:
641
642 ByteLength = 5;
643 break;
644
645 case ACPI_DMT_UINT48:
646 case ACPI_DMT_NAME6:
647
648 ByteLength = 6;
649 break;
650
651 case ACPI_DMT_UINT56:
652 case ACPI_DMT_BUF7:
653
654 ByteLength = 7;
655 break;
656
657 case ACPI_DMT_UINT64:
658 case ACPI_DMT_NAME8:
659
660 ByteLength = 8;
661 break;
662
663 case ACPI_DMT_STRING:
664
665 Value = DtGetFieldValue (Field);
666 if (Value)
667 {
668 ByteLength = strlen (Value) + 1;
669 }
670 else
671 { /* At this point, this is a fatal error */
672
673 sprintf (AslGbl_MsgBuffer, "Expected \"%s\"", Info->Name);
674 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, AslGbl_MsgBuffer);
675 return (0);
676 }
677 break;
678
679 case ACPI_DMT_IVRS_UNTERMINATED_STRING:
680
681 Value = DtGetFieldValue (Field);
682 if (Value)
683 {
684 ByteLength = strlen (Value);
685 }
686 else
687 { /* At this point, this is a fatal error */
688
689 sprintf (AslGbl_MsgBuffer, "Expected \"%s\"", Info->Name);
690 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, AslGbl_MsgBuffer);
691 return (0);
692 }
693 break;
694
695 case ACPI_DMT_GAS:
696
697 ByteLength = sizeof (ACPI_GENERIC_ADDRESS);
698 break;
699
700 case ACPI_DMT_HESTNTFY:
701
702 ByteLength = sizeof (ACPI_HEST_NOTIFY);
703 break;
704
705 case ACPI_DMT_IORTMEM:
706
707 ByteLength = sizeof (ACPI_IORT_MEMORY_ACCESS);
708 break;
709
710 case ACPI_DMT_BUFFER:
711 case ACPI_DMT_RAW_BUFFER:
712 case ACPI_DMT_PMTT_VENDOR:
713
714 Value = DtGetFieldValue (Field);
715 if (Value)
716 {
717 ByteLength = DtGetBufferLength (Value);
718 }
719 else
720 { /* At this point, this is a fatal error */
721
722 sprintf (AslGbl_MsgBuffer, "Expected \"%s\"", Info->Name);
723 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, AslGbl_MsgBuffer);
724 return (0);
725 }
726 break;
727
728 case ACPI_DMT_BUF10:
729
730 ByteLength = 10;
731 break;
732
733 case ACPI_DMT_BUF12:
734
735 ByteLength = 12;
736 break;
737
738 case ACPI_DMT_BUF16:
739 case ACPI_DMT_UUID:
740
741 ByteLength = 16;
742 break;
743
744 case ACPI_DMT_BUF18:
745
746 ByteLength = 18;
747 break;
748
749 case ACPI_DMT_BUF128:
750
751 ByteLength = 128;
752 break;
753
754 case ACPI_DMT_UNICODE:
755 case ACPI_DMT_WPBT_UNICODE:
756
757 Value = DtGetFieldValue (Field);
758
759 /* TBD: error if Value is NULL? (as below?) */
760
761 ByteLength = (strlen (Value) + 1) * sizeof (UINT16);
762 break;
763
764 default:
765
766 DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid table opcode");
767 return (0);
768 }
769
770 return (ByteLength);
771 }
772
773
774 /******************************************************************************
775 *
776 * FUNCTION: DtSum
777 *
778 * PARAMETERS: DT_WALK_CALLBACK:
779 * Subtable - Subtable
780 * Context - Unused
781 * ReturnValue - Store the checksum of subtable
782 *
783 * RETURN: Status
784 *
785 * DESCRIPTION: Get the checksum of subtable
786 *
787 *****************************************************************************/
788
789 static void
DtSum(DT_SUBTABLE * Subtable,void * Context,void * ReturnValue)790 DtSum (
791 DT_SUBTABLE *Subtable,
792 void *Context,
793 void *ReturnValue)
794 {
795 UINT8 Checksum;
796 UINT8 *Sum = ReturnValue;
797
798
799 Checksum = AcpiUtChecksum (Subtable->Buffer, Subtable->Length);
800 *Sum = (UINT8) (*Sum + Checksum);
801 }
802
803
804 /******************************************************************************
805 *
806 * FUNCTION: DtSetTableChecksum
807 *
808 * PARAMETERS: ChecksumPointer - Where to return the checksum
809 *
810 * RETURN: None
811 *
812 * DESCRIPTION: Set checksum of the whole data table into the checksum field
813 *
814 *****************************************************************************/
815
816 void
DtSetTableChecksum(UINT8 * ChecksumPointer)817 DtSetTableChecksum (
818 UINT8 *ChecksumPointer)
819 {
820 UINT8 Checksum = 0;
821 UINT8 OldSum;
822
823
824 DtWalkTableTree (AslGbl_RootTable, DtSum, NULL, &Checksum);
825
826 OldSum = *ChecksumPointer;
827 Checksum = (UINT8) (Checksum - OldSum);
828
829 /* Compute the final checksum */
830
831 Checksum = (UINT8) (0 - Checksum);
832 *ChecksumPointer = Checksum;
833 }
834
835
836 /******************************************************************************
837 *
838 * FUNCTION: DtSetTableLength
839 *
840 * PARAMETERS: None
841 *
842 * RETURN: None
843 *
844 * DESCRIPTION: Walk the subtables and set all the length fields
845 *
846 *****************************************************************************/
847
848 void
DtSetTableLength(void)849 DtSetTableLength (
850 void)
851 {
852 DT_SUBTABLE *ParentTable;
853 DT_SUBTABLE *ChildTable;
854
855
856 ParentTable = AslGbl_RootTable;
857 ChildTable = NULL;
858
859 if (!ParentTable)
860 {
861 return;
862 }
863
864 DtSetSubtableLength (ParentTable);
865
866 while (1)
867 {
868 ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
869 if (ChildTable)
870 {
871 if (ChildTable->LengthField)
872 {
873 DtSetSubtableLength (ChildTable);
874 }
875
876 if (ChildTable->Child)
877 {
878 ParentTable = ChildTable;
879 ChildTable = NULL;
880 }
881 else
882 {
883 ParentTable->TotalLength += ChildTable->TotalLength;
884 if (ParentTable->LengthField)
885 {
886 DtSetSubtableLength (ParentTable);
887 }
888 }
889 }
890 else
891 {
892 ChildTable = ParentTable;
893
894 if (ChildTable == AslGbl_RootTable)
895 {
896 break;
897 }
898
899 ParentTable = DtGetParentSubtable (ParentTable);
900
901 ParentTable->TotalLength += ChildTable->TotalLength;
902 if (ParentTable->LengthField)
903 {
904 DtSetSubtableLength (ParentTable);
905 }
906 }
907 }
908 }
909
910
911 /******************************************************************************
912 *
913 * FUNCTION: DtWalkTableTree
914 *
915 * PARAMETERS: StartTable - Subtable in the tree where walking begins
916 * UserFunction - Called during the walk
917 * Context - Passed to user function
918 * ReturnValue - The return value of UserFunction
919 *
920 * RETURN: None
921 *
922 * DESCRIPTION: Performs a depth-first walk of the subtable tree
923 *
924 *****************************************************************************/
925
926 void
DtWalkTableTree(DT_SUBTABLE * StartTable,DT_WALK_CALLBACK UserFunction,void * Context,void * ReturnValue)927 DtWalkTableTree (
928 DT_SUBTABLE *StartTable,
929 DT_WALK_CALLBACK UserFunction,
930 void *Context,
931 void *ReturnValue)
932 {
933 DT_SUBTABLE *ParentTable;
934 DT_SUBTABLE *ChildTable;
935
936
937 ParentTable = StartTable;
938 ChildTable = NULL;
939
940 if (!ParentTable)
941 {
942 return;
943 }
944
945 UserFunction (ParentTable, Context, ReturnValue);
946
947 while (1)
948 {
949 ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
950 if (ChildTable)
951 {
952 UserFunction (ChildTable, Context, ReturnValue);
953
954 if (ChildTable->Child)
955 {
956 ParentTable = ChildTable;
957 ChildTable = NULL;
958 }
959 }
960 else
961 {
962 ChildTable = ParentTable;
963 if (ChildTable == AslGbl_RootTable)
964 {
965 break;
966 }
967
968 ParentTable = DtGetParentSubtable (ParentTable);
969
970 if (ChildTable->Peer == StartTable)
971 {
972 break;
973 }
974 }
975 }
976 }
977
