1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
|
/*******************************************************************************
*
* Module Name: dmbuffer - AML disassembler, buffer and string support
*
******************************************************************************/
/*
* Copyright (C) 2000 - 2013, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <contrib/dev/acpica/include/acdisasm.h>
#include <contrib/dev/acpica/include/acparser.h>
#include <contrib/dev/acpica/include/amlcode.h>
#ifdef ACPI_DISASSEMBLER
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME ("dmbuffer")
/* Local prototypes */
static void
AcpiDmUnicode (
ACPI_PARSE_OBJECT *Op);
static void
AcpiDmIsEisaIdElement (
ACPI_PARSE_OBJECT *Op);
static void
AcpiDmPldBuffer (
UINT32 Level,
UINT8 *ByteData,
UINT32 ByteCount);
/*******************************************************************************
*
* FUNCTION: AcpiDmDisasmByteList
*
* PARAMETERS: Level - Current source code indentation level
* ByteData - Pointer to the byte list
* ByteCount - Length of the byte list
*
* RETURN: None
*
* DESCRIPTION: Dump an AML "ByteList" in Hex format. 8 bytes per line, prefixed
* with the hex buffer offset.
*
******************************************************************************/
void
AcpiDmDisasmByteList (
UINT32 Level,
UINT8 *ByteData,
UINT32 ByteCount)
{
UINT32 i;
if (!ByteCount)
{
return;
}
/* Dump the byte list */
for (i = 0; i < ByteCount; i++)
{
/* New line every 8 bytes */
if (((i % 8) == 0) && (i < ByteCount))
{
if (i > 0)
{
AcpiOsPrintf ("\n");
}
AcpiDmIndent (Level);
if (ByteCount > 8)
{
AcpiOsPrintf ("/* %04X */ ", i);
}
}
AcpiOsPrintf (" 0x%2.2X", (UINT32) ByteData[i]);
/* Add comma if there are more bytes to display */
if (i < (ByteCount -1))
{
AcpiOsPrintf (",");
}
}
if (Level)
{
AcpiOsPrintf ("\n");
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDmByteList
*
* PARAMETERS: Info - Parse tree walk info
* Op - Byte list op
*
* RETURN: None
*
* DESCRIPTION: Dump a buffer byte list, handling the various types of buffers.
* Buffer type must be already set in the Op DisasmOpcode.
*
******************************************************************************/
void
AcpiDmByteList (
ACPI_OP_WALK_INFO *Info,
ACPI_PARSE_OBJECT *Op)
{
UINT8 *ByteData;
UINT32 ByteCount;
ByteData = Op->Named.Data;
ByteCount = (UINT32) Op->Common.Value.Integer;
/*
* The byte list belongs to a buffer, and can be produced by either
* a ResourceTemplate, Unicode, quoted string, or a plain byte list.
*/
switch (Op->Common.Parent->Common.DisasmOpcode)
{
case ACPI_DASM_RESOURCE:
AcpiDmResourceTemplate (Info, Op->Common.Parent, ByteData, ByteCount);
break;
case ACPI_DASM_STRING:
AcpiDmIndent (Info->Level);
AcpiUtPrintString ((char *) ByteData, ACPI_UINT8_MAX);
AcpiOsPrintf ("\n");
break;
case ACPI_DASM_UNICODE:
AcpiDmUnicode (Op);
break;
case ACPI_DASM_PLD_METHOD:
AcpiDmDisasmByteList (Info->Level, ByteData, ByteCount);
AcpiDmPldBuffer (Info->Level, ByteData, ByteCount);
break;
case ACPI_DASM_BUFFER:
default:
/*
* Not a resource, string, or unicode string.
* Just dump the buffer
*/
AcpiDmDisasmByteList (Info->Level, ByteData, ByteCount);
break;
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDmIsUnicodeBuffer
*
* PARAMETERS: Op - Buffer Object to be examined
*
* RETURN: TRUE if buffer contains a UNICODE string
*
* DESCRIPTION: Determine if a buffer Op contains a Unicode string
*
******************************************************************************/
BOOLEAN
AcpiDmIsUnicodeBuffer (
ACPI_PARSE_OBJECT *Op)
{
UINT8 *ByteData;
UINT32 ByteCount;
UINT32 WordCount;
ACPI_PARSE_OBJECT *SizeOp;
ACPI_PARSE_OBJECT *NextOp;
UINT32 i;
/* Buffer size is the buffer argument */
SizeOp = Op->Common.Value.Arg;
/* Next, the initializer byte list to examine */
NextOp = SizeOp->Common.Next;
if (!NextOp)
{
return (FALSE);
}
/* Extract the byte list info */
ByteData = NextOp->Named.Data;
ByteCount = (UINT32) NextOp->Common.Value.Integer;
WordCount = ACPI_DIV_2 (ByteCount);
/*
* Unicode string must have an even number of bytes and last
* word must be zero
*/
if ((!ByteCount) ||
(ByteCount < 4) ||
(ByteCount & 1) ||
((UINT16 *) (void *) ByteData)[WordCount - 1] != 0)
{
return (FALSE);
}
/* For each word, 1st byte must be ascii, 2nd byte must be zero */
for (i = 0; i < (ByteCount - 2); i += 2)
{
if ((!ACPI_IS_PRINT (ByteData[i])) ||
(ByteData[(ACPI_SIZE) i + 1] != 0))
{
return (FALSE);
}
}
/* Ignore the Size argument in the disassembly of this buffer op */
SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
return (TRUE);
}
/*******************************************************************************
*
* FUNCTION: AcpiDmIsStringBuffer
*
* PARAMETERS: Op - Buffer Object to be examined
*
* RETURN: TRUE if buffer contains a ASCII string, FALSE otherwise
*
* DESCRIPTION: Determine if a buffer Op contains a ASCII string
*
******************************************************************************/
BOOLEAN
AcpiDmIsStringBuffer (
ACPI_PARSE_OBJECT *Op)
{
UINT8 *ByteData;
UINT32 ByteCount;
ACPI_PARSE_OBJECT *SizeOp;
ACPI_PARSE_OBJECT *NextOp;
UINT32 i;
/* Buffer size is the buffer argument */
SizeOp = Op->Common.Value.Arg;
/* Next, the initializer byte list to examine */
NextOp = SizeOp->Common.Next;
if (!NextOp)
{
return (FALSE);
}
/* Extract the byte list info */
ByteData = NextOp->Named.Data;
ByteCount = (UINT32) NextOp->Common.Value.Integer;
/* Last byte must be the null terminator */
if ((!ByteCount) ||
(ByteCount < 2) ||
(ByteData[ByteCount-1] != 0))
{
return (FALSE);
}
for (i = 0; i < (ByteCount - 1); i++)
{
/* TBD: allow some escapes (non-ascii chars).
* they will be handled in the string output routine
*/
if (!ACPI_IS_PRINT (ByteData[i]))
{
return (FALSE);
}
}
return (TRUE);
}
/*******************************************************************************
*
* FUNCTION: AcpiDmIsPldBuffer
*
* PARAMETERS: Op - Buffer Object to be examined
*
* RETURN: TRUE if buffer contains a ASCII string, FALSE otherwise
*
* DESCRIPTION: Determine if a buffer Op contains a _PLD structure
*
******************************************************************************/
BOOLEAN
AcpiDmIsPldBuffer (
ACPI_PARSE_OBJECT *Op)
{
ACPI_NAMESPACE_NODE *Node;
ACPI_PARSE_OBJECT *ParentOp;
ParentOp = Op->Common.Parent;
if (!ParentOp)
{
return (FALSE);
}
/* Check for form: Name(_PLD, Buffer() {}). Not legal, however */
if (ParentOp->Common.AmlOpcode == AML_NAME_OP)
{
Node = ParentOp->Common.Node;
if (ACPI_COMPARE_NAME (Node->Name.Ascii, METHOD_NAME__PLD))
{
return (TRUE);
}
return (FALSE);
}
/* Check for proper form: Name(_PLD, Package() {Buffer() {}}) */
if (ParentOp->Common.AmlOpcode == AML_PACKAGE_OP)
{
ParentOp = ParentOp->Common.Parent;
if (!ParentOp)
{
return (FALSE);
}
if (ParentOp->Common.AmlOpcode == AML_NAME_OP)
{
Node = ParentOp->Common.Node;
if (ACPI_COMPARE_NAME (Node->Name.Ascii, METHOD_NAME__PLD))
{
return (TRUE);
}
}
}
return (FALSE);
}
/*******************************************************************************
*
* FUNCTION: AcpiDmPldBuffer
*
* PARAMETERS: Level - Current source code indentation level
* ByteData - Pointer to the byte list
* ByteCount - Length of the byte list
*
* RETURN: None
*
* DESCRIPTION: Dump and format the contents of a _PLD buffer object
*
******************************************************************************/
#define ACPI_PLD_OUTPUT08 "%*.s/* %18s : %-6.2X */\n", ACPI_MUL_4 (Level), " "
#define ACPI_PLD_OUTPUT16 "%*.s/* %18s : %-6.4X */\n", ACPI_MUL_4 (Level), " "
#define ACPI_PLD_OUTPUT24 "%*.s/* %18s : %-6.6X */\n", ACPI_MUL_4 (Level), " "
static void
AcpiDmPldBuffer (
UINT32 Level,
UINT8 *ByteData,
UINT32 ByteCount)
{
ACPI_PLD_INFO *PldInfo;
ACPI_STATUS Status;
/* Check for valid byte count */
if (ByteCount < ACPI_PLD_REV1_BUFFER_SIZE)
{
return;
}
/* Convert _PLD buffer to local _PLD struct */
Status = AcpiDecodePldBuffer (ByteData, ByteCount, &PldInfo);
if (ACPI_FAILURE (Status))
{
return;
}
/* First 32-bit dword */
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Revision", PldInfo->Revision);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "IgnoreColor", PldInfo->IgnoreColor);
AcpiOsPrintf (ACPI_PLD_OUTPUT24,"Color", PldInfo->Color);
/* Second 32-bit dword */
AcpiOsPrintf (ACPI_PLD_OUTPUT16,"Width", PldInfo->Width);
AcpiOsPrintf (ACPI_PLD_OUTPUT16,"Height", PldInfo->Height);
/* Third 32-bit dword */
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "UserVisible", PldInfo->UserVisible);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Dock", PldInfo->Dock);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Lid", PldInfo->Lid);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Panel", PldInfo->Panel);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "VerticalPosition", PldInfo->VerticalPosition);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "HorizontalPosition", PldInfo->HorizontalPosition);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Shape", PldInfo->Shape);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "GroupOrientation", PldInfo->GroupOrientation);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "GroupToken", PldInfo->GroupToken);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "GroupPosition", PldInfo->GroupPosition);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Bay", PldInfo->Bay);
/* Fourth 32-bit dword */
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Ejectable", PldInfo->Ejectable);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "OspmEjectRequired", PldInfo->OspmEjectRequired);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "CabinetNumber", PldInfo->CabinetNumber);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "CardCageNumber", PldInfo->CardCageNumber);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Reference", PldInfo->Reference);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Rotation", PldInfo->Rotation);
AcpiOsPrintf (ACPI_PLD_OUTPUT08, "Order", PldInfo->Order);
/* Fifth 32-bit dword */
if (ByteCount >= ACPI_PLD_REV1_BUFFER_SIZE)
{
AcpiOsPrintf (ACPI_PLD_OUTPUT16,"VerticalOffset", PldInfo->VerticalOffset);
AcpiOsPrintf (ACPI_PLD_OUTPUT16,"HorizontalOffset", PldInfo->HorizontalOffset);
}
ACPI_FREE (PldInfo);
}
/*******************************************************************************
*
* FUNCTION: AcpiDmUnicode
*
* PARAMETERS: Op - Byte List op containing Unicode string
*
* RETURN: None
*
* DESCRIPTION: Dump Unicode string as a standard ASCII string. (Remove
* the extra zero bytes).
*
******************************************************************************/
static void
AcpiDmUnicode (
ACPI_PARSE_OBJECT *Op)
{
UINT16 *WordData;
UINT32 WordCount;
UINT32 i;
/* Extract the buffer info as a WORD buffer */
WordData = ACPI_CAST_PTR (UINT16, Op->Named.Data);
WordCount = ACPI_DIV_2 (((UINT32) Op->Common.Value.Integer));
AcpiOsPrintf ("\"");
/* Write every other byte as an ASCII character */
for (i = 0; i < (WordCount - 1); i++)
{
AcpiOsPrintf ("%c", (int) WordData[i]);
}
AcpiOsPrintf ("\")");
}
/*******************************************************************************
*
* FUNCTION: AcpiDmIsEisaIdElement
*
* PARAMETERS: Op - Op to be examined
*
* RETURN: None
*
* DESCRIPTION: Determine if an Op (argument to _HID or _CID) can be converted
* to an EISA ID.
*
******************************************************************************/
static void
AcpiDmIsEisaIdElement (
ACPI_PARSE_OBJECT *Op)
{
UINT32 BigEndianId;
UINT32 Prefix[3];
UINT32 i;
/* The parameter must be either a word or a dword */
if ((Op->Common.AmlOpcode != AML_DWORD_OP) &&
(Op->Common.AmlOpcode != AML_WORD_OP))
{
return;
}
/* Swap from little-endian to big-endian to simplify conversion */
BigEndianId = AcpiUtDwordByteSwap ((UINT32) Op->Common.Value.Integer);
/* Create the 3 leading ASCII letters */
Prefix[0] = ((BigEndianId >> 26) & 0x1F) + 0x40;
Prefix[1] = ((BigEndianId >> 21) & 0x1F) + 0x40;
Prefix[2] = ((BigEndianId >> 16) & 0x1F) + 0x40;
/* Verify that all 3 are ascii and alpha */
for (i = 0; i < 3; i++)
{
if (!ACPI_IS_ASCII (Prefix[i]) ||
!ACPI_IS_ALPHA (Prefix[i]))
{
return;
}
}
/* OK - mark this node as convertable to an EISA ID */
Op->Common.DisasmOpcode = ACPI_DASM_EISAID;
}
/*******************************************************************************
*
* FUNCTION: AcpiDmIsEisaId
*
* PARAMETERS: Op - Op to be examined
*
* RETURN: None
*
* DESCRIPTION: Determine if a Name() Op can be converted to an EisaId.
*
******************************************************************************/
void
AcpiDmIsEisaId (
ACPI_PARSE_OBJECT *Op)
{
UINT32 Name;
ACPI_PARSE_OBJECT *NextOp;
/* Get the NameSegment */
Name = AcpiPsGetName (Op);
if (!Name)
{
return;
}
NextOp = AcpiPsGetDepthNext (NULL, Op);
if (!NextOp)
{
return;
}
/* Check for _HID - has one argument */
if (ACPI_COMPARE_NAME (&Name, METHOD_NAME__HID))
{
AcpiDmIsEisaIdElement (NextOp);
return;
}
/* Exit if not _CID */
if (!ACPI_COMPARE_NAME (&Name, METHOD_NAME__CID))
{
return;
}
/* _CID can contain a single argument or a package */
if (NextOp->Common.AmlOpcode != AML_PACKAGE_OP)
{
AcpiDmIsEisaIdElement (NextOp);
return;
}
/* _CID with Package: get the package length */
NextOp = AcpiPsGetDepthNext (NULL, NextOp);
/* Don't need to use the length, just walk the peer list */
NextOp = NextOp->Common.Next;
while (NextOp)
{
AcpiDmIsEisaIdElement (NextOp);
NextOp = NextOp->Common.Next;
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDmEisaId
*
* PARAMETERS: EncodedId - Raw encoded EISA ID.
*
* RETURN: None
*
* DESCRIPTION: Convert an encoded EISAID back to the original ASCII String.
*
******************************************************************************/
void
AcpiDmEisaId (
UINT32 EncodedId)
{
UINT32 BigEndianId;
/* Swap from little-endian to big-endian to simplify conversion */
BigEndianId = AcpiUtDwordByteSwap (EncodedId);
/* Split to form "AAANNNN" string */
AcpiOsPrintf ("EisaId (\"%c%c%c%4.4X\")",
/* Three Alpha characters (AAA), 5 bits each */
(int) ((BigEndianId >> 26) & 0x1F) + 0x40,
(int) ((BigEndianId >> 21) & 0x1F) + 0x40,
(int) ((BigEndianId >> 16) & 0x1F) + 0x40,
/* Numeric part (NNNN) is simply the lower 16 bits */
(UINT32) (BigEndianId & 0xFFFF));
}
#endif
|