1 /******************************************************************************
2 *
3 * Module Name: dtfield.c - Code generation for individual source fields
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
154 #define _COMPONENT DT_COMPILER
155 ACPI_MODULE_NAME ("dtfield")
156
157
158 /* Local prototypes */
159
160 static void
161 DtCompileString (
162 UINT8 *Buffer,
163 DT_FIELD *Field,
164 UINT32 ByteLength);
165
166 static void
167 DtCompileUnicode (
168 UINT8 *Buffer,
169 DT_FIELD *Field,
170 UINT32 ByteLength);
171
172 static ACPI_STATUS
173 DtCompileUuid (
174 UINT8 *Buffer,
175 DT_FIELD *Field,
176 UINT32 ByteLength);
177
178 static char *
179 DtNormalizeBuffer (
180 char *Buffer,
181 UINT32 *Count);
182
183
184 /******************************************************************************
185 *
186 * FUNCTION: DtCompileOneField
187 *
188 * PARAMETERS: Buffer - Output buffer
189 * Field - Field to be compiled
190 * ByteLength - Byte length of the field
191 * Type - Field type
192 *
193 * RETURN: None
194 *
195 * DESCRIPTION: Compile a field value to binary
196 *
197 *****************************************************************************/
198
199 void
DtCompileOneField(UINT8 * Buffer,DT_FIELD * Field,UINT32 ByteLength,UINT8 Type,UINT8 Flags)200 DtCompileOneField (
201 UINT8 *Buffer,
202 DT_FIELD *Field,
203 UINT32 ByteLength,
204 UINT8 Type,
205 UINT8 Flags)
206 {
207 ACPI_STATUS Status;
208
209
210 switch (Type)
211 {
212 case DT_FIELD_TYPE_INTEGER:
213
214 DtCompileInteger (Buffer, Field, ByteLength, Flags);
215 break;
216
217 case DT_FIELD_TYPE_STRING:
218
219 DtCompileString (Buffer, Field, ByteLength);
220 break;
221
222 case DT_FIELD_TYPE_UUID:
223
224 Status = DtCompileUuid (Buffer, Field, ByteLength);
225 if (ACPI_SUCCESS (Status))
226 {
227 break;
228 }
229
230 ACPI_FALLTHROUGH;
231
232 case DT_FIELD_TYPE_BUFFER:
233
234 DtCompileBuffer (Buffer, Field->Value, Field, ByteLength);
235 break;
236
237 case DT_FIELD_TYPE_UNICODE:
238
239 DtCompileUnicode (Buffer, Field, ByteLength);
240 break;
241
242 case DT_FIELD_TYPE_DEVICE_PATH:
243
244 break;
245
246 default:
247
248 DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid field type");
249 break;
250 }
251 }
252
253
254 /******************************************************************************
255 *
256 * FUNCTION: DtCompileString
257 *
258 * PARAMETERS: Buffer - Output buffer
259 * Field - String to be copied to buffer
260 * ByteLength - Maximum length of string
261 *
262 * RETURN: None
263 *
264 * DESCRIPTION: Copy string to the buffer
265 *
266 *****************************************************************************/
267
268 static void
DtCompileString(UINT8 * Buffer,DT_FIELD * Field,UINT32 ByteLength)269 DtCompileString (
270 UINT8 *Buffer,
271 DT_FIELD *Field,
272 UINT32 ByteLength)
273 {
274 UINT32 Length;
275
276
277 Length = strlen (Field->Value);
278
279 /* Check if the string is too long for the field */
280
281 if (Length > ByteLength)
282 {
283 sprintf (AslGbl_MsgBuffer,
284 "Maximum %u characters, found %u characters [%s]",
285 ByteLength, Length, Field->Value);
286 DtError (ASL_ERROR, ASL_MSG_STRING_LENGTH, Field, AslGbl_MsgBuffer);
287 Length = ByteLength;
288 }
289
290 memcpy (Buffer, Field->Value, Length);
291 }
292
293
294 /******************************************************************************
295 *
296 * FUNCTION: DtCompileUnicode
297 *
298 * PARAMETERS: Buffer - Output buffer
299 * Field - String to be copied to buffer
300 * ByteLength - Maximum length of string
301 *
302 * RETURN: None
303 *
304 * DESCRIPTION: Convert ASCII string to Unicode string
305 *
306 * Note: The Unicode string is 16 bits per character, no leading signature,
307 * with a 16-bit terminating NULL.
308 *
309 *****************************************************************************/
310
311 static void
DtCompileUnicode(UINT8 * Buffer,DT_FIELD * Field,UINT32 ByteLength)312 DtCompileUnicode (
313 UINT8 *Buffer,
314 DT_FIELD *Field,
315 UINT32 ByteLength)
316 {
317 UINT32 Count;
318 UINT32 i;
319 char *AsciiString;
320 UINT16 *UnicodeString;
321
322
323 AsciiString = Field->Value;
324 UnicodeString = (UINT16 *) Buffer;
325 Count = strlen (AsciiString) + 1;
326
327 /* Convert to Unicode string (including null terminator) */
328
329 for (i = 0; i < Count; i++)
330 {
331 UnicodeString[i] = (UINT16) AsciiString[i];
332 }
333 }
334
335
336 /*******************************************************************************
337 *
338 * FUNCTION: DtCompileUuid
339 *
340 * PARAMETERS: Buffer - Output buffer
341 * Field - String to be copied to buffer
342 * ByteLength - Maximum length of string
343 *
344 * RETURN: None
345 *
346 * DESCRIPTION: Convert UUID string to 16-byte buffer
347 *
348 ******************************************************************************/
349
350 static ACPI_STATUS
DtCompileUuid(UINT8 * Buffer,DT_FIELD * Field,UINT32 ByteLength)351 DtCompileUuid (
352 UINT8 *Buffer,
353 DT_FIELD *Field,
354 UINT32 ByteLength)
355 {
356 char *InString;
357 ACPI_STATUS Status;
358
359
360 InString = Field->Value;
361
362 Status = AuValidateUuid (InString);
363 if (ACPI_FAILURE (Status))
364 {
365 sprintf (AslGbl_MsgBuffer, "%s", Field->Value);
366 DtNameError (ASL_ERROR, ASL_MSG_INVALID_UUID, Field, AslGbl_MsgBuffer);
367 }
368 else
369 {
370 AcpiUtConvertStringToUuid (InString, Buffer);
371 }
372
373 return (Status);
374 }
375
376
377 /******************************************************************************
378 *
379 * FUNCTION: DtCompileInteger
380 *
381 * PARAMETERS: Buffer - Output buffer
382 * Field - Field obj with Integer to be compiled
383 * ByteLength - Byte length of the integer
384 * Flags - Additional compile info
385 *
386 * RETURN: None
387 *
388 * DESCRIPTION: Compile an integer. Supports integer expressions with C-style
389 * operators.
390 *
391 *****************************************************************************/
392
393 void
DtCompileInteger(UINT8 * Buffer,DT_FIELD * Field,UINT32 ByteLength,UINT8 Flags)394 DtCompileInteger (
395 UINT8 *Buffer,
396 DT_FIELD *Field,
397 UINT32 ByteLength,
398 UINT8 Flags)
399 {
400 UINT64 Value;
401 UINT64 MaxValue;
402 ACPI_STATUS Status;
403
404
405 /* Output buffer byte length must be in range 1-8 */
406
407 if ((ByteLength > 8) || (ByteLength == 0))
408 {
409 DtFatal (ASL_MSG_COMPILER_INTERNAL, Field,
410 "Invalid internal Byte length");
411 return;
412 }
413
414 /* Resolve integer expression to a single integer value */
415
416 Status = DtResolveIntegerExpression (Field, &Value);
417 if (ACPI_FAILURE (Status))
418 {
419 return;
420 }
421
422 /*
423 * Ensure that reserved fields are set properly. Note: uses
424 * the DT_NON_ZERO flag to indicate that the reserved value
425 * must be exactly one. Otherwise, the value must be zero.
426 * This is sufficient for now.
427 */
428
429 /* TBD: Should use a flag rather than compare "Reserved" */
430
431 if (!strcmp (Field->Name, "Reserved"))
432 {
433 if (Flags & DT_NON_ZERO)
434 {
435 if (Value != 1)
436 {
437 DtError (ASL_ERROR, ASL_MSG_RESERVED_FIELD, Field,
438 "Must be one, setting to one");
439 Value = 1;
440 }
441 }
442 else if (Value != 0)
443 {
444 DtError (ASL_ERROR, ASL_MSG_RESERVED_FIELD, Field,
445 "Must be zero, setting to zero");
446 Value = 0;
447 }
448 }
449
450 /* Check if the value must be non-zero */
451
452 else if ((Flags & DT_NON_ZERO) && (Value == 0))
453 {
454 DtError (ASL_ERROR, ASL_MSG_ZERO_VALUE, Field, NULL);
455 }
456
457 /*
458 * Generate the maximum value for the data type (ByteLength)
459 * Note: construct chosen for maximum portability
460 */
461 MaxValue = ((UINT64) (-1)) >> (64 - (ByteLength * 8));
462
463 /* Validate that the input value is within range of the target */
464
465 if (Value > MaxValue)
466 {
467 sprintf (AslGbl_MsgBuffer, "%8.8X%8.8X - max %u bytes",
468 ACPI_FORMAT_UINT64 (Value), ByteLength);
469 DtError (ASL_ERROR, ASL_MSG_INTEGER_SIZE, Field, AslGbl_MsgBuffer);
470 }
471
472 memcpy (Buffer, &Value, ByteLength);
473 return;
474 }
475
476
477 /******************************************************************************
478 *
479 * FUNCTION: DtNormalizeBuffer
480 *
481 * PARAMETERS: Buffer - Input buffer
482 * Count - Output the count of hex numbers in
483 * the Buffer
484 *
485 * RETURN: The normalized buffer, must be freed by caller
486 *
487 * DESCRIPTION: [1A,2B,3C,4D] or 1A, 2B, 3C, 4D will be normalized
488 * to 1A 2B 3C 4D
489 *
490 *****************************************************************************/
491
492 static char *
DtNormalizeBuffer(char * Buffer,UINT32 * Count)493 DtNormalizeBuffer (
494 char *Buffer,
495 UINT32 *Count)
496 {
497 char *NewBuffer;
498 char *TmpBuffer;
499 UINT32 BufferCount = 0;
500 BOOLEAN Separator = TRUE;
501 char c;
502
503
504 NewBuffer = UtLocalCalloc (strlen (Buffer) + 1);
505 TmpBuffer = NewBuffer;
506
507 while ((c = *Buffer++))
508 {
509 switch (c)
510 {
511 /* Valid separators */
512
513 case '[':
514 case ']':
515 case ' ':
516 case ',':
517
518 Separator = TRUE;
519 break;
520
521 default:
522
523 if (Separator)
524 {
525 /* Insert blank as the standard separator */
526
527 if (NewBuffer[0])
528 {
529 *TmpBuffer++ = ' ';
530 BufferCount++;
531 }
532
533 Separator = FALSE;
534 }
535
536 *TmpBuffer++ = c;
537 break;
538 }
539 }
540
541 *Count = BufferCount + 1;
542 return (NewBuffer);
543 }
544
545
546 /******************************************************************************
547 *
548 * FUNCTION: DtCompileBuffer
549 *
550 * PARAMETERS: Buffer - Output buffer
551 * StringValue - Integer list to be compiled
552 * Field - Current field object
553 * ByteLength - Byte length of the integer list
554 *
555 * RETURN: Count of remaining data in the input list
556 *
557 * DESCRIPTION: Compile and pack an integer list, for example
558 * "AA 1F 20 3B" ==> Buffer[] = {0xAA,0x1F,0x20,0x3B}
559 *
560 *****************************************************************************/
561
562 UINT32
DtCompileBuffer(UINT8 * Buffer,char * StringValue,DT_FIELD * Field,UINT32 ByteLength)563 DtCompileBuffer (
564 UINT8 *Buffer,
565 char *StringValue,
566 DT_FIELD *Field,
567 UINT32 ByteLength)
568 {
569 char *Substring;
570 ACPI_STATUS Status;
571 UINT32 Count;
572 UINT32 i;
573
574
575 /* Allow several different types of value separators */
576
577 StringValue = DtNormalizeBuffer (StringValue, &Count);
578 Substring = StringValue;
579 if (Count != ByteLength)
580 {
581 sprintf(AslGbl_MsgBuffer,
582 "Found %u values, must match expected count: %u",
583 Count, ByteLength);
584 DtError (ASL_ERROR, ASL_MSG_BUFFER_LIST, Field, AslGbl_MsgBuffer);
585 goto Exit;
586 }
587
588 /* Each element of StringValue is now three chars (2 hex + 1 space) */
589
590 for (i = 0; i < Count; i++, Substring += 3)
591 {
592 /* Check for byte value too long */
593
594 if (*(&Substring[2]) &&
595 (*(&Substring[2]) != ' '))
596 {
597 DtError (ASL_ERROR, ASL_MSG_BUFFER_ELEMENT, Field, Substring);
598 goto Exit;
599 }
600
601 /* Convert two ASCII characters to one hex byte */
602
603 Status = AcpiUtAsciiToHexByte (Substring, &Buffer[i]);
604 if (ACPI_FAILURE (Status))
605 {
606 DtError (ASL_ERROR, ASL_MSG_BUFFER_ELEMENT, Field, Substring);
607 goto Exit;
608 }
609 }
610
611 Exit:
612 ACPI_FREE (StringValue);
613 return (ByteLength - Count);
614 }
615
616
617 /******************************************************************************
618 *
619 * FUNCTION: DtCompileFlag
620 *
621 * PARAMETERS: Buffer - Output buffer
622 * Field - Field to be compiled
623 * Info - Flag info
624 *
625 * RETURN: None
626 *
627 * DESCRIPTION: Compile a flag field. Handles flags up to 64 bits.
628 *
629 *****************************************************************************/
630
631 void
DtCompileFlag(UINT8 * Buffer,DT_FIELD * Field,ACPI_DMTABLE_INFO * Info)632 DtCompileFlag (
633 UINT8 *Buffer,
634 DT_FIELD *Field,
635 ACPI_DMTABLE_INFO *Info)
636 {
637 UINT64 Value = 0;
638 UINT32 BitLength = 1;
639 UINT8 BitPosition = 0;
640
641
642 Value = AcpiUtImplicitStrtoul64 (Field->Value);
643
644 switch (Info->Opcode)
645 {
646 case ACPI_DMT_FLAG0:
647 case ACPI_DMT_FLAG1:
648 case ACPI_DMT_FLAG2:
649 case ACPI_DMT_FLAG3:
650 case ACPI_DMT_FLAG4:
651 case ACPI_DMT_FLAG5:
652 case ACPI_DMT_FLAG6:
653 case ACPI_DMT_FLAG7:
654
655 BitPosition = Info->Opcode;
656 BitLength = 1;
657 break;
658
659 case ACPI_DMT_FLAGS0:
660
661 BitPosition = 0;
662 BitLength = 2;
663 break;
664
665
666 case ACPI_DMT_FLAGS1:
667
668 BitPosition = 1;
669 BitLength = 2;
670 break;
671
672
673 case ACPI_DMT_FLAGS2:
674
675 BitPosition = 2;
676 BitLength = 2;
677 break;
678
679 case ACPI_DMT_FLAGS8_2:
680
681 BitPosition = 2;
682 BitLength = 8;
683 break;
684
685 case ACPI_DMT_FLAGS4:
686
687 BitPosition = 4;
688 BitLength = 2;
689 break;
690
691 case ACPI_DMT_FLAGS4_0:
692
693 BitPosition = 0;
694 BitLength = 4;
695 break;
696
697 case ACPI_DMT_FLAGS4_4:
698
699 BitPosition = 4;
700 BitLength = 4;
701 break;
702
703 case ACPI_DMT_FLAGS4_8:
704
705 BitPosition = 8;
706 BitLength = 4;
707 break;
708
709 case ACPI_DMT_FLAGS4_12:
710
711 BitPosition = 12;
712 BitLength = 4;
713 break;
714
715 case ACPI_DMT_FLAGS16_16:
716
717 BitPosition = 16;
718 BitLength = 16;
719 break;
720
721 default:
722
723 DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid flag opcode");
724 break;
725 }
726
727 /* Check range of the input flag value */
728
729 if (Value >= ((UINT64) 1 << BitLength))
730 {
731 sprintf (AslGbl_MsgBuffer, "Maximum %u bit", BitLength);
732 DtError (ASL_ERROR, ASL_MSG_FLAG_VALUE, Field, AslGbl_MsgBuffer);
733 Value = 0;
734 }
735
736 *Buffer |= (UINT8) (Value << BitPosition);
737 }
738
739
740 /******************************************************************************
741 *
742 * FUNCTION: DtCreateField
743 *
744 * PARAMETERS: Name
745 * Value
746 * Line
747 * Offset
748 * Column
749 * NameColumn
750 *
751 * RETURN: None
752 *
753 * DESCRIPTION: Create a field
754 *
755 *****************************************************************************/
756
757 void
DtCreateField(DT_TABLE_UNIT * FieldKey,DT_TABLE_UNIT * FieldValue,UINT32 Offset)758 DtCreateField (
759 DT_TABLE_UNIT *FieldKey,
760 DT_TABLE_UNIT *FieldValue,
761 UINT32 Offset)
762 {
763 DT_FIELD *Field = UtFieldCacheCalloc ();
764
765
766 Field->StringLength = 0;
767 if (FieldKey->Value)
768 {
769 Field->Name =
770 strcpy (UtLocalCacheCalloc (strlen (FieldKey->Value) + 1), FieldKey->Value);
771 }
772
773 if (FieldValue->Value)
774 {
775 Field->StringLength = strlen (FieldValue->Value);
776 Field->Value =
777 strcpy (UtLocalCacheCalloc (Field->StringLength + 1), FieldValue->Value);
778 }
779
780 Field->Line = FieldValue->Line;
781 Field->ByteOffset = Offset;
782 Field->NameColumn = FieldKey->Column;
783 Field->Column = FieldValue->Column;
784 DtLinkField (Field);
785
786 DtDumpFieldList (AslGbl_FieldList);
787 }
788
789
790 /******************************************************************************
791 *
792 * FUNCTION: DtCreateTableUnit
793 *
794 * PARAMETERS: Data
795 * Line
796 * Column
797 *
798 * RETURN: a table unit
799 *
800 * DESCRIPTION: Create a table unit
801 *
802 *****************************************************************************/
803
804 DT_TABLE_UNIT *
DtCreateTableUnit(char * Data,UINT32 Line,UINT32 Column)805 DtCreateTableUnit (
806 char *Data,
807 UINT32 Line,
808 UINT32 Column)
809 {
810 DT_TABLE_UNIT *Unit = (DT_TABLE_UNIT *) UtFieldCacheCalloc ();
811
812
813 Unit->Value = Data;
814 Unit->Line = Line;
815 Unit->Column = Column;
816 return (Unit);
817 }
818
819
820 /******************************************************************************
821 *
822 * FUNCTION: DtLinkField
823 *
824 * PARAMETERS: Field - New field object to link
825 *
826 * RETURN: None
827 *
828 * DESCRIPTION: Link one field name and value to the list
829 *
830 *****************************************************************************/
831
832 void
DtLinkField(DT_FIELD * Field)833 DtLinkField (
834 DT_FIELD *Field)
835 {
836 DT_FIELD *Prev;
837 DT_FIELD *Next;
838
839
840 Prev = Next = AslGbl_FieldList;
841
842 while (Next)
843 {
844 Prev = Next;
845 Next = Next->Next;
846 }
847
848 if (Prev)
849 {
850 Prev->Next = Field;
851 }
852 else
853 {
854 AslGbl_FieldList = Field;
855 }
856 }
857
