1
2/******************************************************************************
3 *
4 * Module Name: aslcodegen - AML code generation
|
5 * $Revision: 1.57 $
|
| 5 * $Revision: 1.62 $ |
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
|
13 * Some or all of this work - Copyright (c) 1999 - 2005, Intel Corp.
|
| 13 * Some or all of this work - Copyright (c) 1999 - 2007, Intel Corp. |
14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * PARTICULAR PURPOSE.
91 *
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * LIMITED REMEDY.
100 *
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
115 *
116 *****************************************************************************/
117
118
119#include <contrib/dev/acpica/compiler/aslcompiler.h>
120#include "aslcompiler.y.h"
121#include <contrib/dev/acpica/amlcode.h>
122
123#define _COMPONENT ACPI_COMPILER
124 ACPI_MODULE_NAME ("aslcodegen")
125
126/* Local prototypes */
127
128static ACPI_STATUS
129CgAmlWriteWalk (
130 ACPI_PARSE_OBJECT *Op,
131 UINT32 Level,
132 void *Context);
133
134static void
135CgLocalWriteAmlData (
136 ACPI_PARSE_OBJECT *Op,
137 void *Buffer,
138 UINT32 Length);
139
140static void
141CgWriteAmlOpcode (
142 ACPI_PARSE_OBJECT *Op);
143
144static void
145CgWriteTableHeader (
146 ACPI_PARSE_OBJECT *Op);
147
148static void
149CgCloseTable (
150 void);
151
152static void
153CgWriteNode (
154 ACPI_PARSE_OBJECT *Op);
155
156
157/*******************************************************************************
158 *
159 * FUNCTION: CgGenerateAmlOutput
160 *
161 * PARAMETERS: None.
162 *
163 * RETURN: None
164 *
165 * DESCRIPTION: Generate AML code. Currently generates the listing file
166 * simultaneously.
167 *
168 ******************************************************************************/
169
170void
171CgGenerateAmlOutput (
172 void)
173{
174
175 DbgPrint (ASL_DEBUG_OUTPUT, "\nWriting AML\n\n");
176
177 /* Generate the AML output file */
178
179 FlSeekFile (ASL_FILE_SOURCE_OUTPUT, 0);
180 Gbl_SourceLine = 0;
181 Gbl_NextError = Gbl_ErrorLog;
182
183 TrWalkParseTree (RootNode, ASL_WALK_VISIT_DOWNWARD,
184 CgAmlWriteWalk, NULL, NULL);
185 CgCloseTable ();
186}
187
188
189/*******************************************************************************
190 *
191 * FUNCTION: CgAmlWriteWalk
192 *
193 * PARAMETERS: ASL_WALK_CALLBACK
194 *
195 * RETURN: Status
196 *
197 * DESCRIPTION: Parse tree walk to generate the AML code.
198 *
199 ******************************************************************************/
200
201static ACPI_STATUS
202CgAmlWriteWalk (
203 ACPI_PARSE_OBJECT *Op,
204 UINT32 Level,
205 void *Context)
206{
207
|
208 /*
209 * Print header at level 0. Alignment assumes 32-bit pointers
210 */
211 if (!Level)
212 {
213 DbgPrint (ASL_TREE_OUTPUT,
214 "Final parse tree used for AML output:\n");
215 DbgPrint (ASL_TREE_OUTPUT,
216 "%*s Value P_Op A_Op OpLen PByts Len SubLen PSubLen OpPtr Child Parent Flags AcTyp Final Col L\n",
217 76, " ");
218 }
219 |
220 /* Debug output */
221
222 DbgPrint (ASL_TREE_OUTPUT,
223 "%5.5d [%2d]", Op->Asl.LogicalLineNumber, Level);
224 UtPrintFormattedName (Op->Asl.ParseOpcode, Level);
225
226 if (Op->Asl.ParseOpcode == PARSEOP_NAMESEG ||
227 Op->Asl.ParseOpcode == PARSEOP_NAMESTRING ||
228 Op->Asl.ParseOpcode == PARSEOP_METHODCALL)
229 {
230 DbgPrint (ASL_TREE_OUTPUT,
231 "%10.32s ", Op->Asl.ExternalName);
232 }
233 else
234 {
235 DbgPrint (ASL_TREE_OUTPUT, " ");
236 }
237
|
226 DbgPrint (ASL_TREE_OUTPUT,
227 "Val-%08X POp-%04X AOp-%04X OpLen-%01X PByts-%01X Len-%04X SubLen-%04X PSubLen-%04X Op-%08X Chld-%08X Paren-%08X Flags-%04X AcTyp-%08X C-%2d L-%d\n",
228 (UINT32) Op->Asl.Value.Integer,
229 Op->Asl.ParseOpcode,
230 Op->Asl.AmlOpcode,
231 Op->Asl.AmlOpcodeLength,
232 Op->Asl.AmlPkgLenBytes,
233 Op->Asl.AmlLength,
234 Op->Asl.AmlSubtreeLength,
235 Op->Asl.Parent ? Op->Asl.Parent->Asl.AmlSubtreeLength : 0,
236 Op,
237 Op->Asl.Child,
238 Op->Asl.Parent,
239 Op->Asl.CompileFlags,
240 Op->Asl.AcpiBtype,
241 Op->Asl.Column,
242 Op->Asl.LineNumber);
|
238 DbgPrint (ASL_TREE_OUTPUT,
239 "%08X %04X %04X %01X %04X %04X %04X %04X %08X %08X %08X %08X %08X %04X %02d %02d\n",
240 /* 1 */ (UINT32) Op->Asl.Value.Integer,
241 /* 2 */ Op->Asl.ParseOpcode,
242 /* 3 */ Op->Asl.AmlOpcode,
243 /* 4 */ Op->Asl.AmlOpcodeLength,
244 /* 5 */ Op->Asl.AmlPkgLenBytes,
245 /* 6 */ Op->Asl.AmlLength,
246 /* 7 */ Op->Asl.AmlSubtreeLength,
247 /* 8 */ Op->Asl.Parent ? Op->Asl.Parent->Asl.AmlSubtreeLength : 0,
248 /* 9 */ Op,
249 /* 10 */ Op->Asl.Child,
250 /* 11 */ Op->Asl.Parent,
251 /* 12 */ Op->Asl.CompileFlags,
252 /* 13 */ Op->Asl.AcpiBtype,
253 /* 14 */ Op->Asl.FinalAmlLength,
254 /* 15 */ Op->Asl.Column,
255 /* 16 */ Op->Asl.LineNumber); |
256
257 /* Generate the AML for this node */
258
259 CgWriteNode (Op);
260 return (AE_OK);
261}
262
263
264/*******************************************************************************
265 *
266 * FUNCTION: CgLocalWriteAmlData
267 *
268 * PARAMETERS: Op - Current parse op
269 * Buffer - Buffer to write
270 * Length - Size of data in buffer
271 *
272 * RETURN: None
273 *
274 * DESCRIPTION: Write a buffer of AML data to the AML output file.
275 *
276 ******************************************************************************/
277
278static void
279CgLocalWriteAmlData (
280 ACPI_PARSE_OBJECT *Op,
281 void *Buffer,
282 UINT32 Length)
283{
284
285 /* Write the raw data to the AML file */
286
287 FlWriteFile (ASL_FILE_AML_OUTPUT, Buffer, Length);
288
289 /* Update the final AML length for this node (used for listings) */
290
291 if (Op)
292 {
293 Op->Asl.FinalAmlLength += Length;
294 }
295}
296
297
298/*******************************************************************************
299 *
300 * FUNCTION: CgWriteAmlOpcode
301 *
302 * PARAMETERS: Op - Parse node with an AML opcode
303 *
304 * RETURN: None.
305 *
306 * DESCRIPTION: Write the AML opcode corresponding to a parse node.
307 *
308 ******************************************************************************/
309
310static void
311CgWriteAmlOpcode (
312 ACPI_PARSE_OBJECT *Op)
313{
314 UINT8 PkgLenFirstByte;
315 UINT32 i;
316 union {
317 UINT16 Opcode;
318 UINT8 OpcodeBytes[2];
319 } Aml;
320 union {
321 UINT32 Len;
322 UINT8 LenBytes[4];
323 } PkgLen;
324
325
326 /* We expect some DEFAULT_ARGs, just ignore them */
327
328 if (Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
329 {
330 return;
331 }
332
333 switch (Op->Asl.AmlOpcode)
334 {
335 case AML_UNASSIGNED_OPCODE:
336
337 /* These opcodes should not get here */
338
339 printf ("Found a node with an unassigned AML opcode\n");
340 fprintf (stderr, "Found a node with an unassigned AML opcode\n");
341 return;
342
343 case AML_INT_RESERVEDFIELD_OP:
344
345 /* Special opcodes for within a field definition */
346
347 Aml.Opcode = 0x00;
348 break;
349
350 case AML_INT_ACCESSFIELD_OP:
351
352 Aml.Opcode = 0x01;
353 break;
354
355 default:
356 Aml.Opcode = Op->Asl.AmlOpcode;
357 break;
358 }
359
360
361 switch (Aml.Opcode)
362 {
363 case AML_PACKAGE_LENGTH:
364
365 /* Value is the length to be encoded (Used in field definitions) */
366
367 PkgLen.Len = (UINT32) Op->Asl.Value.Integer;
368 break;
369
370 default:
371
372 /* Check for two-byte opcode */
373
374 if (Aml.Opcode > 0x00FF)
375 {
376 /* Write the high byte first */
377
378 CgLocalWriteAmlData (Op, &Aml.OpcodeBytes[1], 1);
379 }
380
381 CgLocalWriteAmlData (Op, &Aml.OpcodeBytes[0], 1);
382
383 /* Subtreelength doesn't include length of package length bytes */
384
385 PkgLen.Len = Op->Asl.AmlSubtreeLength + Op->Asl.AmlPkgLenBytes;
386 break;
387 }
388
389 /* Does this opcode have an associated "PackageLength" field? */
390
391 if (Op->Asl.CompileFlags & NODE_AML_PACKAGE)
392 {
393 if (Op->Asl.AmlPkgLenBytes == 1)
394 {
395 /* Simplest case -- no bytes to follow, just write the count */
396
397 CgLocalWriteAmlData (Op, &PkgLen.LenBytes[0], 1);
398 }
|
386 else
|
| 399 else if (Op->Asl.AmlPkgLenBytes != 0) |
400 {
401 /*
402 * Encode the "bytes to follow" in the first byte, top two bits.
403 * The low-order nybble of the length is in the bottom 4 bits
404 */
405 PkgLenFirstByte = (UINT8)
406 (((UINT32) (Op->Asl.AmlPkgLenBytes - 1) << 6) |
407 (PkgLen.LenBytes[0] & 0x0F));
408
409 CgLocalWriteAmlData (Op, &PkgLenFirstByte, 1);
410
411 /*
412 * Shift the length over by the 4 bits we just stuffed
413 * in the first byte
414 */
415 PkgLen.Len >>= 4;
416
417 /* Now we can write the remaining bytes - either 1, 2, or 3 bytes */
418
419 for (i = 0; i < (UINT32) (Op->Asl.AmlPkgLenBytes - 1); i++)
420 {
421 CgLocalWriteAmlData (Op, &PkgLen.LenBytes[i], 1);
422 }
423 }
424 }
425
426 switch (Aml.Opcode)
427 {
428 case AML_BYTE_OP:
429
430 CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 1);
431 break;
432
433 case AML_WORD_OP:
434
435 CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 2);
436 break;
437
438 case AML_DWORD_OP:
439
440 CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 4);
441 break;
442
443 case AML_QWORD_OP:
444
445 CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 8);
446 break;
447
448 case AML_STRING_OP:
449
450 CgLocalWriteAmlData (Op, Op->Asl.Value.String, Op->Asl.AmlLength);
451 break;
452
453 default:
454 /* All data opcodes must appear above */
455 break;
456 }
457}
458
459
460/*******************************************************************************
461 *
462 * FUNCTION: CgWriteTableHeader
463 *
464 * PARAMETERS: Op - The DEFINITIONBLOCK node
465 *
466 * RETURN: None
467 *
468 * DESCRIPTION: Write a table header corresponding to the DEFINITIONBLOCK
469 *
470 ******************************************************************************/
471
472static void
473CgWriteTableHeader (
474 ACPI_PARSE_OBJECT *Op)
475{
476 ACPI_PARSE_OBJECT *Child;
477
478
479 /* AML filename */
480
481 Child = Op->Asl.Child;
482
483 /* Signature */
484
485 Child = Child->Asl.Next;
486 strncpy (TableHeader.Signature, Child->Asl.Value.String, 4);
487
488 /* Revision */
489
490 Child = Child->Asl.Next;
491 TableHeader.Revision = (UINT8) Child->Asl.Value.Integer;
492
493 /* Command-line Revision override */
494
495 if (Gbl_RevisionOverride)
496 {
497 TableHeader.Revision = Gbl_RevisionOverride;
498 }
499
500 /* OEMID */
501
502 Child = Child->Asl.Next;
503 strncpy (TableHeader.OemId, Child->Asl.Value.String, 6);
504
505 /* OEM TableID */
506
507 Child = Child->Asl.Next;
508 strncpy (TableHeader.OemTableId, Child->Asl.Value.String, 8);
509
510 /* OEM Revision */
511
512 Child = Child->Asl.Next;
513 TableHeader.OemRevision = (UINT32) Child->Asl.Value.Integer;
514
515 /* Compiler ID */
516
517 strncpy (TableHeader.AslCompilerId, CompilerCreatorId, 4);
518
519 /* Compiler version */
520
521 TableHeader.AslCompilerRevision = CompilerCreatorRevision;
522
523 /* Table length. Checksum zero for now, will rewrite later */
524
525 TableHeader.Length = Gbl_TableLength;
526 TableHeader.Checksum = 0;
527
528 CgLocalWriteAmlData (Op, &TableHeader, sizeof (ACPI_TABLE_HEADER));
529}
530
531
532/*******************************************************************************
533 *
534 * FUNCTION: CgCloseTable
535 *
536 * PARAMETERS: None.
537 *
538 * RETURN: None.
539 *
540 * DESCRIPTION: Complete the ACPI table by calculating the checksum and
541 * re-writing the header.
542 *
543 ******************************************************************************/
544
545static void
546CgCloseTable (
547 void)
548{
549 signed char Sum;
550 UINT8 FileByte;
551
552
553 FlSeekFile (ASL_FILE_AML_OUTPUT, 0);
554 Sum = 0;
555
556 /* Calculate the checksum over the entire file */
557
558 while (FlReadFile (ASL_FILE_AML_OUTPUT, &FileByte, 1) == AE_OK)
559 {
560 Sum = (signed char) (Sum + FileByte);
561 }
562
563 /* Re-write the table header with the checksum */
564
565 TableHeader.Checksum = (UINT8) (0 - Sum);
566
567 FlSeekFile (ASL_FILE_AML_OUTPUT, 0);
568 CgLocalWriteAmlData (NULL, &TableHeader, sizeof (ACPI_TABLE_HEADER));
569}
570
571
572/*******************************************************************************
573 *
574 * FUNCTION: CgWriteNode
575 *
576 * PARAMETERS: Op - Parse node to write.
577 *
578 * RETURN: None.
579 *
580 * DESCRIPTION: Write the AML that corresponds to a parse node.
581 *
582 ******************************************************************************/
583
584static void
585CgWriteNode (
586 ACPI_PARSE_OBJECT *Op)
587{
588 ASL_RESOURCE_NODE *Rnode;
589
590
|
578 Op->Asl.FinalAmlLength = 0;
579
|
591 /* Always check for DEFAULT_ARG and other "Noop" nodes */
592 /* TBD: this may not be the best place for this check */
593
594 if ((Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) ||
595 (Op->Asl.ParseOpcode == PARSEOP_EXTERNAL) ||
596 (Op->Asl.ParseOpcode == PARSEOP_INCLUDE) ||
597 (Op->Asl.ParseOpcode == PARSEOP_INCLUDE_END))
598 {
599 return;
600 }
601
|
602 Op->Asl.FinalAmlLength = 0;
603 |
604 switch (Op->Asl.AmlOpcode)
605 {
606 case AML_RAW_DATA_BYTE:
607 case AML_RAW_DATA_WORD:
608 case AML_RAW_DATA_DWORD:
609 case AML_RAW_DATA_QWORD:
610
611 CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, Op->Asl.AmlLength);
612 return;
613
614
615 case AML_RAW_DATA_BUFFER:
616
617 CgLocalWriteAmlData (Op, Op->Asl.Value.Buffer, Op->Asl.AmlLength);
618 return;
619
620
621 case AML_RAW_DATA_CHAIN:
622
623 Rnode = ACPI_CAST_PTR (ASL_RESOURCE_NODE, Op->Asl.Value.Buffer);
624 while (Rnode)
625 {
626 CgLocalWriteAmlData (Op, Rnode->Buffer, Rnode->BufferLength);
627 Rnode = Rnode->Next;
628 }
629 return;
630
631 default:
632 /* Internal data opcodes must all appear above */
633 break;
634 }
635
636 switch (Op->Asl.ParseOpcode)
637 {
638 case PARSEOP_DEFAULT_ARG:
639
640 break;
641
642 case PARSEOP_DEFINITIONBLOCK:
643
644 CgWriteTableHeader (Op);
645 break;
646
647 case PARSEOP_NAMESEG:
648 case PARSEOP_NAMESTRING:
649 case PARSEOP_METHODCALL:
650
651 CgLocalWriteAmlData (Op, Op->Asl.Value.String, Op->Asl.AmlLength);
652 break;
653
654 default:
655
656 CgWriteAmlOpcode (Op);
657 break;
658 }
659}
660
661
|