1 /*******************************************************************************
2 *
3 * Module Name: dmwalk - AML disassembly tree walk
4 *
5 ******************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2014, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44
45 #include "acpi.h"
46 #include "accommon.h"
47 #include "acparser.h"
48 #include "amlcode.h"
49 #include "acdisasm.h"
50 #include "acdebug.h"
51
52
53 #ifdef ACPI_DISASSEMBLER
54
55 #define _COMPONENT ACPI_CA_DEBUGGER
56 ACPI_MODULE_NAME ("dmwalk")
57
58
59 #define DB_FULL_OP_INFO "[%4.4s] @%5.5X #%4.4X: "
60
61 /* Stub for non-compiler code */
62
63 #ifndef ACPI_ASL_COMPILER
64 void
65 AcpiDmEmitExternals (
66 void)
67 {
68 return;
69 }
70 #endif
71
72 /* Local prototypes */
73
74 static ACPI_STATUS
75 AcpiDmDescendingOp (
76 ACPI_PARSE_OBJECT *Op,
77 UINT32 Level,
78 void *Context);
79
80 static ACPI_STATUS
81 AcpiDmAscendingOp (
82 ACPI_PARSE_OBJECT *Op,
83 UINT32 Level,
84 void *Context);
85
86 static UINT32
87 AcpiDmBlockType (
88 ACPI_PARSE_OBJECT *Op);
89
90
91 /*******************************************************************************
92 *
93 * FUNCTION: AcpiDmDisassemble
94 *
95 * PARAMETERS: WalkState - Current state
96 * Origin - Starting object
97 * NumOpcodes - Max number of opcodes to be displayed
98 *
99 * RETURN: None
100 *
101 * DESCRIPTION: Disassemble parser object and its children. This is the
102 * main entry point of the disassembler.
103 *
104 ******************************************************************************/
105
106 void
107 AcpiDmDisassemble (
108 ACPI_WALK_STATE *WalkState,
109 ACPI_PARSE_OBJECT *Origin,
110 UINT32 NumOpcodes)
111 {
112 ACPI_PARSE_OBJECT *Op = Origin;
113 ACPI_OP_WALK_INFO Info;
114
115
116 if (!Op)
117 {
118 return;
119 }
120
121 Info.Flags = 0;
122 Info.Level = 0;
123 Info.Count = 0;
124 Info.WalkState = WalkState;
125 AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info);
126 return;
127 }
128
129
130 /*******************************************************************************
131 *
132 * FUNCTION: AcpiDmWalkParseTree
133 *
134 * PARAMETERS: Op - Root Op object
135 * DescendingCallback - Called during tree descent
136 * AscendingCallback - Called during tree ascent
137 * Context - To be passed to the callbacks
138 *
139 * RETURN: Status from callback(s)
140 *
141 * DESCRIPTION: Walk the entire parse tree.
142 *
143 ******************************************************************************/
144
145 void
146 AcpiDmWalkParseTree (
147 ACPI_PARSE_OBJECT *Op,
148 ASL_WALK_CALLBACK DescendingCallback,
149 ASL_WALK_CALLBACK AscendingCallback,
150 void *Context)
151 {
152 BOOLEAN NodePreviouslyVisited;
153 ACPI_PARSE_OBJECT *StartOp = Op;
154 ACPI_STATUS Status;
155 ACPI_PARSE_OBJECT *Next;
156 ACPI_OP_WALK_INFO *Info = Context;
157
158
159 Info->Level = 0;
160 NodePreviouslyVisited = FALSE;
161
162 while (Op)
163 {
164 if (NodePreviouslyVisited)
165 {
166 if (AscendingCallback)
167 {
168 Status = AscendingCallback (Op, Info->Level, Context);
169 if (ACPI_FAILURE (Status))
170 {
171 return;
172 }
173 }
174 }
175 else
176 {
177 /* Let the callback process the node */
178
179 Status = DescendingCallback (Op, Info->Level, Context);
180 if (ACPI_SUCCESS (Status))
181 {
182 /* Visit children first, once */
183
184 Next = AcpiPsGetArg (Op, 0);
185 if (Next)
186 {
187 Info->Level++;
188 Op = Next;
189 continue;
190 }
191 }
192 else if (Status != AE_CTRL_DEPTH)
193 {
194 /* Exit immediately on any error */
195
196 return;
197 }
198 }
199
200 /* Terminate walk at start op */
201
202 if (Op == StartOp)
203 {
204 break;
205 }
206
207 /* No more children, re-visit this node */
208
209 if (!NodePreviouslyVisited)
210 {
211 NodePreviouslyVisited = TRUE;
212 continue;
213 }
214
215 /* No more children, visit peers */
216
217 if (Op->Common.Next)
218 {
219 Op = Op->Common.Next;
220 NodePreviouslyVisited = FALSE;
221 }
222 else
223 {
224 /* No peers, re-visit parent */
225
226 if (Info->Level != 0 )
227 {
228 Info->Level--;
229 }
230
231 Op = Op->Common.Parent;
232 NodePreviouslyVisited = TRUE;
233 }
234 }
235
236 /* If we get here, the walk completed with no errors */
237
238 return;
239 }
240
241
242 /*******************************************************************************
243 *
244 * FUNCTION: AcpiDmBlockType
245 *
246 * PARAMETERS: Op - Object to be examined
247 *
248 * RETURN: BlockType - not a block, parens, braces, or even both.
249 *
250 * DESCRIPTION: Type of block for this op (parens or braces)
251 *
252 ******************************************************************************/
253
254 static UINT32
255 AcpiDmBlockType (
256 ACPI_PARSE_OBJECT *Op)
257 {
258 const ACPI_OPCODE_INFO *OpInfo;
259
260
261 if (!Op)
262 {
263 return (BLOCK_NONE);
264 }
265
266 switch (Op->Common.AmlOpcode)
267 {
268 case AML_ELSE_OP:
269
270 return (BLOCK_BRACE);
271
272 case AML_METHOD_OP:
273 case AML_DEVICE_OP:
274 case AML_SCOPE_OP:
275 case AML_PROCESSOR_OP:
276 case AML_POWER_RES_OP:
277 case AML_THERMAL_ZONE_OP:
278 case AML_IF_OP:
279 case AML_WHILE_OP:
280 case AML_FIELD_OP:
281 case AML_INDEX_FIELD_OP:
282 case AML_BANK_FIELD_OP:
283
284 return (BLOCK_PAREN | BLOCK_BRACE);
285
286 case AML_BUFFER_OP:
287
288 if (Op->Common.DisasmOpcode == ACPI_DASM_UNICODE)
289 {
290 return (BLOCK_NONE);
291 }
292
293 /*lint -fallthrough */
294
295 case AML_PACKAGE_OP:
296 case AML_VAR_PACKAGE_OP:
297
298 return (BLOCK_PAREN | BLOCK_BRACE);
299
300 case AML_EVENT_OP:
301
302 return (BLOCK_PAREN);
303
304 default:
305
306 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
307 if (OpInfo->Flags & AML_HAS_ARGS)
308 {
309 return (BLOCK_PAREN);
310 }
311
312 return (BLOCK_NONE);
313 }
314 }
315
316
317 /*******************************************************************************
318 *
319 * FUNCTION: AcpiDmListType
320 *
321 * PARAMETERS: Op - Object to be examined
322 *
323 * RETURN: ListType - has commas or not.
324 *
325 * DESCRIPTION: Type of block for this op (parens or braces)
326 *
327 ******************************************************************************/
328
329 UINT32
330 AcpiDmListType (
331 ACPI_PARSE_OBJECT *Op)
332 {
333 const ACPI_OPCODE_INFO *OpInfo;
334
335
336 if (!Op)
337 {
338 return (BLOCK_NONE);
339 }
340
341 switch (Op->Common.AmlOpcode)
342 {
343
344 case AML_ELSE_OP:
345 case AML_METHOD_OP:
346 case AML_DEVICE_OP:
347 case AML_SCOPE_OP:
348 case AML_POWER_RES_OP:
349 case AML_PROCESSOR_OP:
350 case AML_THERMAL_ZONE_OP:
351 case AML_IF_OP:
352 case AML_WHILE_OP:
353 case AML_FIELD_OP:
354 case AML_INDEX_FIELD_OP:
355 case AML_BANK_FIELD_OP:
356
357 return (BLOCK_NONE);
358
359 case AML_BUFFER_OP:
360 case AML_PACKAGE_OP:
361 case AML_VAR_PACKAGE_OP:
362
363 return (BLOCK_COMMA_LIST);
364
365 default:
366
367 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
368 if (OpInfo->Flags & AML_HAS_ARGS)
369 {
370 return (BLOCK_COMMA_LIST);
371 }
372
373 return (BLOCK_NONE);
374 }
375 }
376
377
378 /*******************************************************************************
379 *
380 * FUNCTION: AcpiDmDescendingOp
381 *
382 * PARAMETERS: ASL_WALK_CALLBACK
383 *
384 * RETURN: Status
385 *
386 * DESCRIPTION: First visitation of a parse object during tree descent.
387 * Decode opcode name and begin parameter list(s), if any.
388 *
389 ******************************************************************************/
390
391 static ACPI_STATUS
392 AcpiDmDescendingOp (
393 ACPI_PARSE_OBJECT *Op,
394 UINT32 Level,
395 void *Context)
396 {
397 ACPI_OP_WALK_INFO *Info = Context;
398 const ACPI_OPCODE_INFO *OpInfo;
399 UINT32 Name;
400 ACPI_PARSE_OBJECT *NextOp;
401
402
403 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE)
404 {
405 /* Ignore this op -- it was handled elsewhere */
406
407 return (AE_CTRL_DEPTH);
408 }
409
410 /* Level 0 is at the Definition Block level */
411
412 if (Level == 0)
413 {
414 /* In verbose mode, print the AML offset, opcode and depth count */
415
416 if (Info->WalkState)
417 {
418 VERBOSE_PRINT ((DB_FULL_OP_INFO,
419 (Info->WalkState->MethodNode ?
420 Info->WalkState->MethodNode->Name.Ascii : " "),
421 Op->Common.AmlOffset, (UINT32) Op->Common.AmlOpcode));
422 }
423
424 if (Op->Common.AmlOpcode == AML_SCOPE_OP)
425 {
426 /* This is the beginning of the Definition Block */
427
428 AcpiOsPrintf ("{\n");
429
430 /* Emit all External() declarations here */
431
432 AcpiDmEmitExternals ();
433 return (AE_OK);
434 }
435 }
436 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) &&
437 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) &&
438 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP))
439 {
440 /*
441 * This is a first-level element of a term list,
442 * indent a new line
443 */
444 switch (Op->Common.AmlOpcode)
445 {
446 case AML_NOOP_OP:
447 /*
448 * Optionally just ignore this opcode. Some tables use
449 * NoOp opcodes for "padding" out packages that the BIOS
450 * changes dynamically. This can leave hundreds or
451 * thousands of NoOp opcodes that if disassembled,
452 * cannot be compiled because they are syntactically
453 * incorrect.
454 */
455 if (AcpiGbl_IgnoreNoopOperator)
456 {
457 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
458 return (AE_OK);
459 }
460
461 /* Fallthrough */
462
463 default:
464
465 AcpiDmIndent (Level);
466 break;
467 }
468
469 Info->LastLevel = Level;
470 Info->Count = 0;
471 }
472
473 /*
474 * This is an inexpensive mechanism to try and keep lines from getting
475 * too long. When the limit is hit, start a new line at the previous
476 * indent plus one. A better but more expensive mechanism would be to
477 * keep track of the current column.
478 */
479 Info->Count++;
480 if (Info->Count /* +Info->LastLevel */ > 10)
481 {
482 Info->Count = 0;
483 AcpiOsPrintf ("\n");
484 AcpiDmIndent (Info->LastLevel + 1);
485 }
486
487 /* Print the opcode name */
488
489 AcpiDmDisassembleOneOp (NULL, Info, Op);
490
491 if ((Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) ||
492 (Op->Common.AmlOpcode == AML_INT_CONNECTION_OP))
493 {
494 return (AE_OK);
495 }
496
497 if ((Op->Common.AmlOpcode == AML_NAME_OP) ||
498 (Op->Common.AmlOpcode == AML_RETURN_OP))
499 {
500 Info->Level--;
501 }
502
503 /* Start the opcode argument list if necessary */
504
505 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
506
507 if ((OpInfo->Flags & AML_HAS_ARGS) ||
508 (Op->Common.AmlOpcode == AML_EVENT_OP))
509 {
510 /* This opcode has an argument list */
511
512 if (AcpiDmBlockType (Op) & BLOCK_PAREN)
513 {
514 AcpiOsPrintf (" (");
515 }
516
517 /* If this is a named opcode, print the associated name value */
518
519 if (OpInfo->Flags & AML_NAMED)
520 {
521 switch (Op->Common.AmlOpcode)
522 {
523 case AML_ALIAS_OP:
524
525 NextOp = AcpiPsGetDepthNext (NULL, Op);
526 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
527 AcpiDmNamestring (NextOp->Common.Value.Name);
528 AcpiOsPrintf (", ");
529
530 /*lint -fallthrough */
531
532 default:
533
534 Name = AcpiPsGetName (Op);
535 if (Op->Named.Path)
536 {
537 AcpiDmNamestring ((char *) Op->Named.Path);
538 }
539 else
540 {
541 AcpiDmDumpName (Name);
542 }
543
544 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP)
545 {
546 if (AcpiGbl_DbOpt_verbose)
547 {
548 (void) AcpiPsDisplayObjectPathname (NULL, Op);
549 }
550 }
551 break;
552 }
553
554 switch (Op->Common.AmlOpcode)
555 {
556 case AML_METHOD_OP:
557
558 AcpiDmMethodFlags (Op);
559 AcpiOsPrintf (")");
560
561 /* Emit description comment for Method() with a predefined ACPI name */
562
563 AcpiDmPredefinedDescription (Op);
564 break;
565
566
567 case AML_NAME_OP:
568
569 /* Check for _HID and related EISAID() */
570
571 AcpiDmIsEisaId (Op);
572 AcpiOsPrintf (", ");
573 break;
574
575
576 case AML_REGION_OP:
577
578 AcpiDmRegionFlags (Op);
579 break;
580
581
582 case AML_POWER_RES_OP:
583
584 /* Mark the next two Ops as part of the parameter list */
585
586 AcpiOsPrintf (", ");
587 NextOp = AcpiPsGetDepthNext (NULL, Op);
588 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST;
589
590 NextOp = NextOp->Common.Next;
591 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST;
592 return (AE_OK);
593
594
595 case AML_PROCESSOR_OP:
596
597 /* Mark the next three Ops as part of the parameter list */
598
599 AcpiOsPrintf (", ");
600 NextOp = AcpiPsGetDepthNext (NULL, Op);
601 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST;
602
603 NextOp = NextOp->Common.Next;
604 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST;
605
606 NextOp = NextOp->Common.Next;
607 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST;
608 return (AE_OK);
609
610
611 case AML_MUTEX_OP:
612 case AML_DATA_REGION_OP:
613
614 AcpiOsPrintf (", ");
615 return (AE_OK);
616
617
618 case AML_EVENT_OP:
619 case AML_ALIAS_OP:
620
621 return (AE_OK);
622
623
624 case AML_SCOPE_OP:
625 case AML_DEVICE_OP:
626 case AML_THERMAL_ZONE_OP:
627
628 AcpiOsPrintf (")");
629 break;
630
631
632 default:
633
634 AcpiOsPrintf ("*** Unhandled named opcode %X\n",
635 Op->Common.AmlOpcode);
636 break;
637 }
638 }
639
640 else switch (Op->Common.AmlOpcode)
641 {
642 case AML_FIELD_OP:
643 case AML_BANK_FIELD_OP:
644 case AML_INDEX_FIELD_OP:
645
646 Info->BitOffset = 0;
647
648 /* Name of the parent OperationRegion */
649
650 NextOp = AcpiPsGetDepthNext (NULL, Op);
651 AcpiDmNamestring (NextOp->Common.Value.Name);
652 AcpiOsPrintf (", ");
653 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
654
655 switch (Op->Common.AmlOpcode)
656 {
657 case AML_BANK_FIELD_OP:
658
659 /* Namestring - Bank Name */
660
661 NextOp = AcpiPsGetDepthNext (NULL, NextOp);
662 AcpiDmNamestring (NextOp->Common.Value.Name);
663 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
664 AcpiOsPrintf (", ");
665
666 /*
667 * Bank Value. This is a TermArg in the middle of the parameter
668 * list, must handle it here.
669 *
670 * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMLIST
671 * eliminates newline in the output.
672 */
673 NextOp = NextOp->Common.Next;
674
675 Info->Flags = ACPI_PARSEOP_PARAMLIST;
676 AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp,
677 AcpiDmAscendingOp, Info);
678 Info->Flags = 0;
679 Info->Level = Level;
680
681 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
682 AcpiOsPrintf (", ");
683 break;
684
685 case AML_INDEX_FIELD_OP:
686
687 /* Namestring - Data Name */
688
689 NextOp = AcpiPsGetDepthNext (NULL, NextOp);
690 AcpiDmNamestring (NextOp->Common.Value.Name);
691 AcpiOsPrintf (", ");
692 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
693 break;
694
695 default:
696
697 break;
698 }
699
700 AcpiDmFieldFlags (NextOp);
701 break;
702
703 case AML_BUFFER_OP:
704
705 /* The next op is the size parameter */
706
707 NextOp = AcpiPsGetDepthNext (NULL, Op);
708 if (!NextOp)
709 {
710 /* Single-step support */
711
712 return (AE_OK);
713 }
714
715 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE)
716 {
717 /*
718 * We have a resource list. Don't need to output
719 * the buffer size Op. Open up a new block
720 */
721 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
722 NextOp = NextOp->Common.Next;
723 AcpiOsPrintf (")");
724
725 /* Emit description comment for Name() with a predefined ACPI name */
726
727 AcpiDmPredefinedDescription (Op->Asl.Parent);
728
729 AcpiOsPrintf ("\n");
730 AcpiDmIndent (Info->Level);
731 AcpiOsPrintf ("{\n");
732 return (AE_OK);
733 }
734
735 /* Normal Buffer, mark size as in the parameter list */
736
737 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST;
738 return (AE_OK);
739
740 case AML_VAR_PACKAGE_OP:
741 case AML_IF_OP:
742 case AML_WHILE_OP:
743
744 /* The next op is the size or predicate parameter */
745
746 NextOp = AcpiPsGetDepthNext (NULL, Op);
747 if (NextOp)
748 {
749 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST;
750 }
751 return (AE_OK);
752
753 case AML_PACKAGE_OP:
754
755 /* The next op is the size parameter */
756
757 NextOp = AcpiPsGetDepthNext (NULL, Op);
758 if (NextOp)
759 {
760 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST;
761 }
762 return (AE_OK);
763
764 case AML_MATCH_OP:
765
766 AcpiDmMatchOp (Op);
767 break;
768
769 default:
770
771 break;
772 }
773
774 if (AcpiDmBlockType (Op) & BLOCK_BRACE)
775 {
776 AcpiOsPrintf ("\n");
777 AcpiDmIndent (Level);
778 AcpiOsPrintf ("{\n");
779 }
780 }
781
782 return (AE_OK);
783 }
784
785
786 /*******************************************************************************
787 *
788 * FUNCTION: AcpiDmAscendingOp
789 *
790 * PARAMETERS: ASL_WALK_CALLBACK
791 *
792 * RETURN: Status
793 *
794 * DESCRIPTION: Second visitation of a parse object, during ascent of parse
795 * tree. Close out any parameter lists and complete the opcode.
796 *
797 ******************************************************************************/
798
799 static ACPI_STATUS
800 AcpiDmAscendingOp (
801 ACPI_PARSE_OBJECT *Op,
802 UINT32 Level,
803 void *Context)
804 {
805 ACPI_OP_WALK_INFO *Info = Context;
806 ACPI_PARSE_OBJECT *ParentOp;
807
808
809 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE)
810 {
811 /* Ignore this op -- it was handled elsewhere */
812
813 return (AE_OK);
814 }
815
816 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP))
817 {
818 /* Indicates the end of the current descriptor block (table) */
819
820 AcpiOsPrintf ("}\n\n");
821 return (AE_OK);
822 }
823
824 switch (AcpiDmBlockType (Op))
825 {
826 case BLOCK_PAREN:
827
828 /* Completed an op that has arguments, add closing paren */
829
830 AcpiOsPrintf (")");
831
832 if (Op->Common.AmlOpcode == AML_NAME_OP)
833 {
834 /* Emit description comment for Name() with a predefined ACPI name */
835
836 AcpiDmPredefinedDescription (Op);
837 }
838 else
839 {
840 /* For Create* operators, attempt to emit resource tag description */
841
842 AcpiDmFieldPredefinedDescription (Op);
843 }
844
845 /* Could be a nested operator, check if comma required */
846
847 if (!AcpiDmCommaIfListMember (Op))
848 {
849 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) &&
850 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) &&
851 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP))
852 {
853 /*
854 * This is a first-level element of a term list
855 * start a new line
856 */
857 if (!(Info->Flags & ACPI_PARSEOP_PARAMLIST))
858 {
859 AcpiOsPrintf ("\n");
860 }
861 }
862 }
863 break;
864
865 case BLOCK_BRACE:
866 case (BLOCK_BRACE | BLOCK_PAREN):
867
868 /* Completed an op that has a term list, add closing brace */
869
870 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)
871 {
872 AcpiOsPrintf ("}");
873 }
874 else
875 {
876 AcpiDmIndent (Level);
877 AcpiOsPrintf ("}");
878 }
879
880 AcpiDmCommaIfListMember (Op);
881
882 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN)
883 {
884 AcpiOsPrintf ("\n");
885 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST))
886 {
887 if ((Op->Common.AmlOpcode == AML_IF_OP) &&
888 (Op->Common.Next) &&
889 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP))
890 {
891 break;
892 }
893
894 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) &&
895 (!Op->Common.Next))
896 {
897 break;
898 }
899 AcpiOsPrintf ("\n");
900 }
901 }
902 break;
903
904 case BLOCK_NONE:
905 default:
906
907 /* Could be a nested operator, check if comma required */
908
909 if (!AcpiDmCommaIfListMember (Op))
910 {
911 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) &&
912 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) &&
913 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP))
914 {
915 /*
916 * This is a first-level element of a term list
917 * start a new line
918 */
919 AcpiOsPrintf ("\n");
920 }
921 }
922 else if (Op->Common.Parent)
923 {
924 switch (Op->Common.Parent->Common.AmlOpcode)
925 {
926 case AML_PACKAGE_OP:
927 case AML_VAR_PACKAGE_OP:
928
929 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST))
930 {
931 AcpiOsPrintf ("\n");
932 }
933 break;
934
935 default:
936
937 break;
938 }
939 }
940 break;
941 }
942
943 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)
944 {
945 if ((Op->Common.Next) &&
946 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST))
947 {
948 return (AE_OK);
949 }
950
951 /*
952 * Just completed a parameter node for something like "Buffer (param)".
953 * Close the paren and open up the term list block with a brace
954 */
955 if (Op->Common.Next)
956 {
957 AcpiOsPrintf (")");
958
959 /* Emit description comment for Name() with a predefined ACPI name */
960
961 ParentOp = Op->Common.Parent;
962 if (ParentOp)
963 {
964 ParentOp = ParentOp->Common.Parent;
965 if (ParentOp && ParentOp->Asl.AmlOpcode == AML_NAME_OP)
966 {
967 AcpiDmPredefinedDescription (ParentOp);
968 }
969 }
970 AcpiOsPrintf ("\n");
971 AcpiDmIndent (Level - 1);
972 AcpiOsPrintf ("{\n");
973 }
974 else
975 {
976 Op->Common.Parent->Common.DisasmFlags |=
977 ACPI_PARSEOP_EMPTY_TERMLIST;
978 AcpiOsPrintf (") {");
979 }
980 }
981
982 if ((Op->Common.AmlOpcode == AML_NAME_OP) ||
983 (Op->Common.AmlOpcode == AML_RETURN_OP))
984 {
985 Info->Level++;
986 }
987 return (AE_OK);
988 }
989
990
991 #endif /* ACPI_DISASSEMBLER */